In the deep integration of Industry 4.0 and intelligent manufacturing, factory warehouse management is transforming from the traditional “manual + Excel” model to the “digital + lean” intelligent system. As the “blood” of the production line, the efficiency, accuracy and timeliness of the supply of production materials directly determines the rate of equipment operation, product delivery cycle and comprehensive manufacturing costs. Especially in the electronics manufacturing, automotive parts, new energy, precision machining and other industries, the material presents “small batch, high frequency, multi-specification” characteristics, the traditional manual counting, rough collateral model, has become a key bottleneck restricting the improvement of production efficiency.

Intelligent weighing material shelves, as digital equipment integrating high-precision sensing, Internet of Things and intelligent algorithms, realize automatic measurement, real-time inventory and light guidance of production materials through the core logic of “weight perception instead of manual counting”, effectively cracking the pain points of wrong collocation, leakage collocation, inventory lag and supply interruption. This paper focuses on factory warehousing scenarios, focusing on the core value point of “fast adoption”, from the cost efficiency, the whole chain of time, production line synergies and other dimensions, a systematic analysis of intelligent weighing material shelves on the overall production efficiency of the path of enhancement, and combined with industry data and combat cases, for the optimization of the warehouse management system for the enterprise, to realize the reduction of costs and increase efficiency to provide a reference to the ground, while strictly adapting to the production of materials. At the same time, it strictly adheres to the SEO and GEO collection rules, highlighting the adaptability of the scene, technical practicability and industry value.

First, the core pain points and efficiency bottlenecks of the factory warehousing production materials fast collocation

Production material rapid requisition is a key link between warehousing and production line, and its efficiency directly affects the production line beat and delivery capacity. Currently, most factory warehouses still rely on traditional management modes, and five core pain points have been exposed in the rapid requisitioning scenario, forming a significant efficiency bottleneck and restricting the improvement of overall production efficiency.

(i) Inefficient manual counting and time-consuming material receiving seriously crowded the effective time of the production line.

In the traditional material receiving mode, workers need to manually count the number of materials, fill out the material receiving sheet, and then the warehouse supervisor manually check and sign the confirmation, which is a cumbersome and time-consuming process. For screws, resistors, spacers and other small loose parts, a single batch of collaterals counting takes 5-15 minutes; high-frequency collaterals scenarios, workers spend an average of 30-60 minutes per day in the collaterals counting, taking up a significant amount of effective production time. According to statistics, medium-sized factories receive materials more than 800 times a day, the cumulative time consumed more than 100 hours, which is equivalent to reducing the effective working hours of the production line by 5-8 per day, indirectly resulting in loss of production capacity. In addition, manual counting is susceptible to fatigue and inexperience, with an accuracy of only 90%-95%, and errors and omissions occur frequently, further delaying the production rhythm.

(ii) High risk of rework and quality due to frequent misclaims and omissions

Manual collaterals rely on workers to material specifications, batch memory and verification, the lack of system verification, wrong collar, leakage rate as high as 2%-3%. For example, automotive parts factory due to the wrong collar screw specifications lead to line rework, annual rework costs of more than 8 million yuan; electronic factories due to the leakage of resistors lead to the scrapping of the batch of products, the loss of more than 2 million yuan. Wrong collar not only causes material waste, but also may cause product quality defects, affecting the brand reputation; missed collar directly leads to production line downtime waiting for materials, according to industry data, the traditional mode of factory monthly average due to lack of material downtime 3-5 times, the annual loss of more than 12 million yuan.

(iii) Lagging inventory data and untimely replenishment triggering chain reactions

Traditional warehousing uses manual periodic inventory (daily/weekly inventory), inventory data has a 12-24 hour delay, and cannot reflect the real stock of goods in real time. When the production line is in urgent need of materials, it is easy to appear “on the books, the actual lack of goods”, resulting in replenishment delays; or “insufficient on the books, the actual surplus”, resulting in inventory backlog. According to the research, the traditional mode of factory inventory accuracy is only 91%, the proportion of dull material is as high as 25%, liquidity occupation of more than 3 million yuan / year. Replenishment delays not only affect the current production line progress, but also disrupt the production plan, resulting in backlogs in subsequent processes, forming a “chain reaction of efficiency”.

(D) Lack of process control, irrational consumption pushes up material costs

The lack of authority control and dosage constraints in the traditional collaterals, workers are prone to irrational collaterals, such as multiple collaterals, private use, and random stacking, resulting in serious material loss. For high-value consumables and precision parts, the annual abnormal loss rate reaches 15%-22%, which directly increases the manufacturing cost. At the same time, the lack of batch traceability makes it impossible to quickly locate material batches and consignees when quality problems occur, resulting in inefficient problem identification and further expanding hidden costs.

(v) Serious data silos and lack of accurate support for production decision-making

Most of the factories warehousing and production line management data fragmentation, warehousing material data can not be synchronized in real time to the MES, ERP system, the formation of “data islands”. Management can not accurately grasp the law of material consumption, production line beat matching, inventory turnover efficiency and other core data, production planning, procurement and replenishment based on empirical judgment, which can easily lead to planning distortion, inventory imbalance. For example, a factory did not grasp the high-frequency consumption pattern of consumables, over-purchasing led to inventory backlog, annual depreciation loss of more than 500,000 yuan. Data lag and distortion, directly restricting the scientific production decision-making, affecting the overall production efficiency optimization.

Second, the core technology of intelligent weighing material shelves and the rapid adoption of adaptability

Intelligent weighing material shelves are the core equipment for intelligent upgrading of factory warehousing. Through the synergy of high-precision weighing sensors, Internet of Things (IoT) communication, intelligent algorithms and lighting guidance system, it realizes the rapid adoption and precise control of production materials, and is highly suitable for the management needs of “high efficiency, precision and real-time” of factory warehousing.

(i) Core technology support: weighing + algorithm + interconnection, building a solid foundation for rapid adoption

1. High Precision Weighing SensorEquipped with industrial grade strain gauge weighing module, the weighing error is ≤0.1%, with a resolution of 0.1g, which can accurately measure material changes as small as 1g, completely replacing manual counting. It adopts four-point symmetrical sensing layout, eliminates the bias load error through weighted average algorithm, and is suitable for the mixed storage of multi-category materials.
2. Intelligent accounting algorithmsThe system pre-recorded material weight, specifications, batch and other information, when the material picking and placing, the shelves automatically sense the weight change, through the “weight change ÷ material weight” real-time calculation of the number of collation, single batch of collation time from 5-15 minutes to 30 seconds, efficiency increased by more than 90%. Supporting mixed materials itemized measurement, such as screws + gaskets combination package, can automatically distinguish their respective dosage, sorting efficiency increased by 300%.
3. Real-time interconnection of the Internet of ThingsSupport RS485+Modbus industrial communication protocol, data synchronization delay ≤ 1 second, can be seamlessly connected with MES, ERP, WMS system, real-time uploading of material receiving data, automatic updating of inventory, breaking the data silo. Some models are integrated with 5G+WiFi 6E technology to adapt to the complex network environment in the workshop and ensure stable data transmission.
4. Lighting Guidelines (PTL)Integrated electronic labels and light guidance system, the target position light prompts, synchronized display of material name, specifications, the number of collars, workers do not need to check the paper labels, “that is to find that is to lead”, to further enhance the efficiency of collaterals.

(ii) Structural and functional design: adapting to the needs of the entire process of rapid adoption

1. Modular grill layoutAdopting the design of layered compartment, each cargo space is weighed independently, supporting “one item, one compartment” or “one class, one compartment”, suitable for screws, resistors, small parts and other multi-specification materials. The modular structure supports “1 master cabinet + N slave cabinets” expansion, which can be flexibly expanded according to the growth of the number of materials, and is suitable for the storage needs of factories of different sizes.
2. 24 hours unattendedNo need for warehouseman on-site guarding, workers can collect materials through face recognition, card or code scanning, the system automatically completes the measurement, withholding library, records, to achieve “that is to collect that is to go”, to adapt to the workshop 7 × 24 hours production needs.
3. Intelligent warning and authority controlSetting material safety thresholds and authority to use, when the inventory is lower than the warning line, the system automatically pushes replenishment reminders; over-collar triggered audible and visual alarms and locking of the goods position, requiring authorization from the team leader to unlock, effectively reducing irrational use.
4. Dynamic inventory countInventory data is updated in real time after receiving and replenishment operations are completed, eliminating the need for regular manual inventory counts, increasing inventory counting efficiency by more than 80%, and increasing the inventory accuracy rate from 91% to 99.98%.

III. Analysis of cost-efficiency improvement from the perspective of rapid adoption (cost reduction dimension)

Intelligent weighing material shelves optimize the rapid requisition process to achieve significant cost reductions in the four dimensions of manpower, materials, inventory, and hidden costs, directly improving the cost efficiency of factories and overall production efficiency.

(i) Reducing human costs: realizing “people reduction and efficiency gains” and releasing managerial energies

The traditional material receiving relies on manual counting, checking, inventory, medium-sized factories need to be equipped with 4-6 warehousemen, labor costs account for more than 50% of the total cost of warehouse management. After the application of intelligent weighing material shelves, the whole process of material receiving and inventory is automated, the number of warehouse supervisors can be reduced by 65%-85%, and the number of medium-sized workshops can be reduced from 4-6 to 1 person (only responsible for exception handling).

Take a medium-sized machinery manufacturing enterprise as an example, assuming that the average monthly salary of a warehouseman is 7,000 yuan, the application can save 336,000-588,000 yuan in labor costs per year. At the same time, workers do not need to spend time counting, so they can devote more energy to production, indirectly improving the effective utilization rate of working hours on the production line and reducing the labor cost per unit of product.

(ii) Reduction of material wastage costs: precise measurement to eliminate wastage and reduce direct losses

Manual wrong collar, omission, irrational collar is the main reason for material loss, the traditional mode of small bulk parts loss rate of 15%-22%. intelligent weighing rack through accurate measurement, system calibration, authority control, will reduce the material loss rate of more than 80%, the annual cost of small bulk parts loss reduced by 50%-70%.

Before the application, the annual loss cost of screws, spacers and other consumables of an auto parts enterprise reached 600,000 yuan, and after the application, the loss rate was reduced from 18% to less than 2.5%, saving 525,000 yuan in annual loss cost. A 3C enterprise through the intelligent weighing shelf + PTL system, the wrong sorting rate from 2.8% to 0.02%, annual savings of rework costs of more than 8 million yuan. Precise control not only reduces direct material waste, but also reduces rework and scrap costs caused by material loss, optimizing the comprehensive cost structure of products.

(iii) Optimization of the inventory structure: Reducing the use of funds and improving the efficiency of capital turnover

The traditional mode of inventory data lag, easy to lead to inventory backlog and lack of materials co-exist, inventory capital consumption accounted for enterprise liquidity of 10%-20%, stagnant materials accounted for as high as 25%. intelligent weighing shelves to realize the real-time inventory inventory and dynamic replenishment, the inventory capital consumption reduced by 45%-70%, stagnant materials accounted for less than 5%, the efficiency of capital turnover increased by more than 55%. The capital turnover efficiency is improved by more than 55%.

Before the application of an air-conditioning manufacturing enterprise, the inventory capital consumption of high-value materials amounted to 1.2 million yuan, with a capital turnover cycle of 32 days; after the application, the inventory capital consumption was reduced to 420,000 yuan, with the turnover cycle shortened to 10 days. Calculated on the basis of the annual interest rate of 4.35%, the annual cost of capital consumption was saved to 35,300 yuan, and the loss of scrapping of sluggish materials was reduced to 150,000 yuan at the same time. Accurate inventory data provides a scientific basis for procurement planning, avoiding excessive procurement and inventory backlog, and releasing a large amount of liquidity for core production business.

(iv) Reduction of hidden costs: elimination of stoppages and reduction of management internal consumption

Traditional mode due to lack of materials, wrong leadership to the material stoppages, is one of the largest hidden costs of factories, medium-sized factories average monthly stoppages of 3-5 times, the annual loss of more than 12 million yuan. Intelligent weighing racks through real-time inventory warning and rapid replenishment, to achieve “zero shortage of material stoppages”, reducing the annual loss of 100% stoppages.

At the same time, the system automatically records information such as material collectors, time, material batch, etc., so that responsibilities are clearly defined and problems can be quickly traced back to avoid inter-departmental shirking of responsibilities and reduce problem processing time and management costs. After the application of a new energy vehicle battery factory, the number of downtime caused by lack of materials dropped from 3 times a month to 0 times, reducing the annual loss of 12 million yuan. The significant reduction of hidden costs directly improves the overall profitability and production efficiency of the factory.

IV. Analysis of efficiency gains from a rapid adoption perspective (efficiency dimension)

Intelligent weighing material shelves not only achieve cost reduction, but also optimize the whole process of rapid requisitioning, and improve efficiency from the four dimensions of material requisitioning, inventory, replenishment, and production line coordination, which promotes a leapfrog growth in overall production efficiency.

(i) Improve the efficiency of material requisitioning: realize “second requisitioning” and adapt to the high-frequency demand of the production line

Conventional material receiving takes 5-15 minutes for a single batch, which is inefficient in high-frequency material receiving scenarios. Intelligent weighing shelves can shorten the time for single batch of receiving materials to less than 30 seconds by automatic measurement and light guidance, and improve the efficiency by more than 90%. For batch receiving, it can realize simultaneous receiving and automatic recording in multiple cargo positions, further improving the flow efficiency.

An electronic manufacturing company's workshop daily average collaterals more than 1,000 times, before the application of the cumulative collaterals consumed more than 120 hours / day; after the application of the time-consuming shortened to 10 hours / day, releasing 110 hours of effective production time per day, equivalent to an increase of 6-7 production line man-hours, production capacity increased by 15%-20%. collaterals to improve the efficiency of a substantial, direct match with the high-frequency, fast-paced demand of the line to ensure the continuity of production. Ensure production continuity.

(ii) Enhancing inventory efficiency: realizing “real-time inventory” and bidding farewell to manual time-consumption

Traditional manual inventory requires 2-4 people to spend 3-5 days, inventory accuracy is only 70%-90%, and data lag. Intelligent weighing shelf to achieve “collaterals that inventory, replenishment that update”, real-time synchronization of inventory data, a single person 15 minutes to complete the inventory of the whole library, inventory efficiency to improve more than 80%, the accuracy rate of 99.98%.

Before the application of a construction machinery enterprise, monthly inventory takes 2 people × 4 days, taking 8 days; after the application, it only takes 1 person × 15 minutes, saving more than 2,800 hours of inventory time per year, and the warehouseman can use more energy for inventory optimization and production line coordination. Real-time inventory ensures accurate inventory data, provides a reliable basis for production plan adjustment and procurement replenishment, and avoids efficiency loss caused by data errors.

(iii) Enhancing replenishment efficiency: realizing “intelligent replenishment” to ensure uninterrupted supply

Traditional replenishment relies on manual prediction, lagging response, which easily leads to shortage of materials and stoppage of work. Intelligent weighing racks set the safety stock threshold, when the material stock is lower than the warning line, the system automatically pushes the replenishment instruction to the warehouse and AGV scheduling system, and the AGV automatically replenishes the goods from the main warehouse to the wire side warehouse, the replenishment response time is shortened from 2-4 hours to 15 minutes, and the transportation time is reduced by 40%.

After the application of an automotive parts enterprise, the replenishment efficiency was increased by 90%, the shortage rate of production line was reduced from 5% to 0%, and the production continuity was significantly improved. Intelligent replenishment realizes “replenishment based on sales, accurate supply”, avoids inventory backlog and supply interruption, and ensures efficient operation of production lines.

(iv) Enhancing the efficiency of production line coordination: opening up the data link and optimizing the whole process rhythm

Intelligent weighing racks are seamlessly connected with MES and ERP systems, and the data of material receiving and inventory are synchronized to the production management system in real time, which realizes the efficient coordination between warehousing and production line. The system automatically summarizes material consumption data to provide data support for production plan optimization and process beat adjustment; when the production line is changed, the system automatically identifies the remaining amount of old materials and prompts priority consumption, so that the preparation time for changeover is compressed from 4 hours to 1 hour.

A precision machinery manufacturer through the intelligent weighing rack and MES synergy, the production plan adjustment response time from 2 hours to 15 minutes, process beat matching degree to improve 30%, unit product production cycle shortened by 12%. line synergy to improve efficiency, promote the factory's whole process efficiency optimization, to achieve the overall production efficiency of the qualitative leap.

V. Practical application case analysis (rapid adoption and efficiency landing validation)

In order to further verify the cost efficiency improvement effect of intelligent weighing material shelves in the factory warehousing and rapid adoption scenarios, this paper selects two actual application cases in different industries and scales of factories, and analyzes its application value from the three dimensions of application background, implementation process, and efficiency improvement effect.

Case: A medium-sized electronics manufacturing factory floor (material type: screws, resistors, capacitors and other small loose parts)

1. Application BackgroundThe factory has 12 production lines, more than 200 kinds of small loose parts commonly used in the workshop, and more than 800 times of receiving materials on average per day. Under the traditional mode, there are 5 warehousemen responsible for counting, checking and inventorying, which has the problems of long time-consuming material receiving, high rate of wrong receiving (2.5%), lagging inventory data, and frequent stoppage of work due to lack of materials, etc. The annual loss of efficiency is more than 5 million yuan, which restricts the expansion of production capacity.
2. Implementation processThe company has introduced 10 groups of intelligent weighing material shelves, which are divided into small precision compartments according to material types, and entered information such as single weight and specifications of materials for each cargo space; docked with MES and ERP systems to realize real-time data synchronization; enabled light guidance for collating materials and intelligent early warning functions, and set up material safety thresholds and collation rights.
3. Efficiency Improvement EffectAfter the implementation, the efficiency of quick receiving and the overall production efficiency have realized double breakthroughs. Firstly, in terms of efficiency, the time consumed for single batch of material receiving is shortened from 10 minutes to 30 seconds, and the efficiency of material receiving is improved by 98%, and the average daily time consumed for material receiving is shortened from 100 hours to 2 hours; the time for inventory counting is shortened from 4 days to 15 minutes, and the efficiency of inventory counting is improved by 99%; the response time for replenishment is shortened from 3 hours to 10 minutes, and the efficiency of replenishment is improved by 95%; and the time for changing type of the line is compressed from 4 hours to 1 hour. Secondly, in terms of cost, the warehouseman is reduced from 5 to 1, saving 336,000 yuan in labor cost; the material loss rate is reduced from 18% to 2.2%, saving 450,000 yuan in loss cost; the capital consumption of inventory is reduced from 1.5 million yuan to 550,000 yuan, saving 435,000 yuan in capital consumption cost; the loss of work stoppage due to lack of material is reduced from 1.2 million yuan to 2.5 million yuan; the loss of work stoppage due to lack of material is reduced from 1.2 million yuan to 2.5 million yuan; and the loss of work stoppage due to lack of material is reduced from 1.2 million yuan to 2.5 million yuan. The loss of work stoppage due to lack of materials is reduced from 1.2 million yuan to 0, reducing the loss by 1.2 million yuan; the total annual cost saving is 2.0295 million yuan, and the payback period is only 9 months.