Wireless screw feeder cart

By using the multi-module collaborative operation of the wireless screw feeding cart, and utilizing fingerprint recognition and barcode scanners to achieve automated material management, the inefficiency and error problems caused by manual verification in existing technologies have been solved. This has enabled zero-error control of screw feeding, improving production efficiency and the stability of the assembly line.

CN224528690UActive Publication Date: 2026-07-21ESTON INTELLIGENT TECH (JIANGSU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ESTON INTELLIGENT TECH (JIANGSU) CO LTD
Filing Date
2025-10-17
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The existing screw feeding carts rely on manual verification, which leads to low work efficiency and is prone to information verification errors, causing equipment damage and production line shutdowns, resulting in economic losses.

Method used

The wireless screw feeding cart, through the collaborative work of multiple modules, utilizes fingerprint recognition, barcode scanners, and PLC controllers to achieve automated material management, reduce manual intervention, and ensure the accuracy and efficiency of screw feeding.

Benefits of technology

It achieves zero-error control of screw feeding, improves work efficiency, reduces the risk of equipment damage, and ensures the stability and continuous production capacity of the assembly line.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224528690U_ABST
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Abstract

The utility model discloses a wireless screw supply vehicle, including frame and four wheels, is equipped with storage module, power module and automation terminal module on the frame, power module sets up in the left side bottom in the frame, is used for giving the whole car power supply, storage module sets up power module top, including a plurality of stores for storing different specifications and models screw, is equipped with electronic lock on the bin door of every store, and automation terminal module includes industrial computer, control cabinet and code scanning gun, control cabinet sets up power module right side in the frame, and industrial computer is arranged side by side with code scanning gun and sets up control cabinet top, is equipped with control module and wireless communication module in control cabinet, and the surface of industrial computer is embedded with fingerprint appearance, and storage module, code scanning gun, fingerprint appearance all are connected with control module through wireless communication module, the utility model discloses realized the zero error control of assembly production line screw feeding, has guaranteed the stability of assembly production line.
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Description

Technical Field

[0001] This utility model relates to the field of material supply cart technology, and in particular to a wireless screw supply cart. Background Technology

[0002] Screw supply carts are mainly used on assembly lines. Currently, screw supply still involves manual labor to retrieve all required screws of all specifications and models from the warehouse, place them all on the supply cart, push the cart to the loading side of the production line, and then load them onto each machine. During the loading process, workers need to verify the actual screw material codes required at each workstation, find the corresponding screws, unpack them, and pour them into the machine. This is not only inefficient but also prone to errors, leading to incorrect screws being installed and causing equipment damage. Damage to a single machine can even cause the entire production line to stop. Restarting the entire production line requires removing all incorrect screws, resulting in significant losses and unnecessary economic damage for the company. Utility Model Content

[0003] This invention addresses the shortcomings of existing technologies by proposing a wireless screw feeding cart. Through the collaborative work of multiple modules, it reduces manual verification, simultaneously lowers the risk of incorrect material feeding, and improves work efficiency.

[0004] The technical solution of this utility model is: a wireless screw feeding cart, including a frame and four wheels, and a storage module, a power module and an automation terminal module are provided on the frame. The power module, which includes a battery, is located at the bottom left side of the chassis and is used to power the entire vehicle. The storage module is located above the power module and includes several hoppers for storing screws of different specifications and models. Each hopper door is equipped with an electronic lock. The automated terminal module includes an industrial control all-in-one computer, a control cabinet, and a barcode scanner; the control cabinet is located to the right of the power module inside the vehicle frame, and the industrial control all-in-one computer and the barcode scanner are arranged side by side above the control cabinet; the control cabinet contains a control module and a wireless communication module; The industrial control all-in-one computer has a fingerprint scanner embedded on its surface, which is used to log in by recognizing the user's identity through fingerprints and sending the identity data to the control module; the barcode scanner is a QR code scanner, which is used to scan QR code information and send the scan data to the control module. The control module includes a PLC controller, which receives identity data sent by the fingerprint scanner, obtains the screw data required for different production lines, and then controls the opening of the silo door by scanning the data with a barcode scanner to write and retrieve the data. The storage module, barcode scanner, fingerprint scanner, and control module are all connected via a wireless communication module.

[0005] Preferably, the power module is enclosed by a cover plate at the bottom left side of the vehicle frame. The cover plate is equipped with a switch door with a retractable handle. The retractable handle can be retracted when not in use to prevent bumps to the staff. The switch door can be opened and closed by retracting the handle, making it convenient to replace the battery in the power module.

[0006] Preferably, a power switch is embedded in the sealing plate to control the on / off of the vehicle current and realize the start-stop control of the vehicle.

[0007] Preferably, the silo is divided into upper and lower layers with an equal number of silos in each layer, and each layer of silos is further divided into two rows of equal numbers. Setting up a sufficient number of silos can reduce the number of times the material needs to be transported between the warehouse and the production line, saving time and improving production efficiency.

[0008] Preferably, a work light and an alarm light are provided below the door; these serve as prompts when the door is in different states, so that staff can take appropriate actions in a timely manner.

[0009] Preferably, the hopper door has a transparent glass panel in the middle; staff can look through the glass to check the condition of the screws inside the hopper and replenish the screws as needed.

[0010] Preferably, the right side of the compartment door is provided with a button handle; this facilitates the staff to open the compartment door and pour in the screws.

[0011] Preferably, the control cabinet door is equipped with a retractable handle; this facilitates staff to open the cabinet door and maintain and repair the electronic components inside.

[0012] Preferably, the industrial control all-in-one computer also has a display screen embedded on its surface, enabling human-computer interaction.

[0013] Preferably, the right end of the frame is provided with a ring handle; this facilitates the staff to push the material supply cart back and forth between the warehouse and the material side of the production line.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the utility model has a simple structure and flexible operation, which can realize zero-error control of screw feeding in the assembly line, avoid unnecessary losses caused by human factors, not only improve the work efficiency of the staff, but also greatly enhance the continuous production capacity of the assembly line and ensure the stability of the assembly line. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a front view of the present invention.

[0016] The components are as follows: 1-Frame, 2-Wheels, 3-Storage module, 4-Power module, 5-Automation terminal module, 6-Battery, 7-Hopper, 8-Hopper door, 9-Electronic lock, 10-Industrial control all-in-one machine, 11-Control cabinet, 12-Bar scanner, 13-Fingerprint scanner, 14-Door switch, 15-Retractable handle, 16-Power switch, 17-Work light, 18-Alarm light, 19-Transparent glass, 20-Button handle, 21-Display screen, 22-Ring handle, 23-Ventilation hole. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art without creative effort in accordance with the basic embodiments of the present utility model are within the protection scope of the present utility model.

[0018] like Figure 1-2 As shown, this utility model discloses a wireless screw feeding cart, including a frame 1 and four wheels 2 mounted on the bottom of the frame 1. The frame 1 is equipped with a material storage module 3, a power supply module 4, and an automation terminal module 5. To facilitate the movement of the feeding cart, a ring-shaped handle 22 is provided at the right end of the frame 1.

[0019] The power module 4 is located at the bottom left side of the frame 1. To ensure the normal operation of the material supply vehicle, the power module 4 is equipped with two batteries 6 to power the entire vehicle, providing up to 8 hours of continuous use. The power module 4 is enclosed at the bottom left side of the frame 1 by a sealing plate. A switch door 14 is located at the right end of the front sealing plate, and a retractable handle 15 is provided on the switch door 14. A power switch 16 is also embedded at the left end of the front sealing plate, which can control the on / off of the vehicle's current at any time. Several ventilation holes 23 are provided on the left sealing plate for heat dissipation.

[0020] The storage module 3 is located above the power module 4 and includes 16 storage bins 7 for storing screws of different specifications and models. This means that the entire vehicle can simultaneously hold 16 different types of screws for use on the assembly line. Each storage bin 7 has an electronic lock 9 on its door 8 (only one example of an electronic lock is shown in the attached diagram). To allow for real-time monitoring of the screw usage in each storage bin 7, a transparent glass panel 19 is provided in the center of each door 8. A button handle 20 is also provided on the right side of the door 8 for easy opening and closing.

[0021] The silo 7 is divided into two layers, with an equal number of silos 7 in each layer, and 8 silos 7 in each layer; each layer of silos 7 is further divided into two rows of equal number, with 4 silos 7 in each row.

[0022] To minimize the risk of incorrect material loading, a work light 17 and an alarm light 18 are installed below the silo door 8. The work light displays green, and the alarm light displays red, to warn personnel that only one silo door 8 of the silo 7 can be opened at a time.

[0023] The automated terminal module 5 includes an industrial control all-in-one computer 10, a control cabinet 11, and a barcode scanner 12. The control cabinet 11 is located to the right of the power module 4 inside the frame 1, and the industrial control all-in-one computer 10 and the barcode scanner 12 are arranged side by side above the control cabinet 11. The control cabinet 11 contains a control module and a wireless communication module. In order to maintain the electronic components inside the control cabinet and to facilitate opening and closing the control cabinet 11, a retractable handle 15 is provided on the cabinet door. For heat dissipation, several ventilation holes 23 are also provided on the side wall of the control cabinet 11.

[0024] The industrial control all-in-one computer 10 has a fingerprint scanner 13 embedded on its surface for login via fingerprint recognition and sending the identity data to the control module. The barcode scanner 12 is a QR code scanner used to scan the QR code information on screw packaging bags and the screw loading QR code on the assembly line, and sends the scanned data to the control module. To enable human-machine interaction, the industrial control all-in-one computer 10 also has a display screen 21 embedded on its surface, allowing operators to view vehicle data.

[0025] The control module includes a PLC controller, which receives identity data sent by the fingerprint scanner 13, obtains the screw data required for different production lines, and then controls the opening of the hopper door 8 by scanning the data writing and retrieval through the barcode scanner 12. The storage module 3, barcode scanner 12, fingerprint scanner 13, and control module are all connected via a wireless communication module to achieve wireless transmission of vehicle data.

[0026] like Figure 1-2 As shown, the working principle of this utility model is as follows: all data of the material supply cart is wirelessly transmitted through a wireless communication module. When the power switch 16 is turned on and the material supply cart is started, the worker scans their fingerprint using the fingerprint scanner 13 on the surface of the industrial control all-in-one computer 10 for identification and logs into the MES system. The identified identification data is then sent to the control module in the control cabinet 11. After receiving the worker's identification data, the control module retrieves the specifications and material codes of the 16 types of screws required for different assembly lines from the MES system, i.e., the order data for the 16 types of screws. The order data can be displayed on the display screen 21 on the surface of the industrial control all-in-one computer 10, allowing workers to monitor data changes during the production process in real time and achieve human-machine interaction. The worker holds the ring handle 22 on the frame 1 and pushes the material supply cart to the warehouse to retrieve the 16 types of screws corresponding to the order data.

[0027] Based on the order data for the 16 types of screws, the staff uses a barcode scanner 12 to scan the QR code information on the screw packaging and writes the scanned data into the PLC controller. The PLC controller matches the scanned data with the order data. If the data matches, it randomly opens the electronic lock 9 of the door 8 of a hopper 7 according to a preset instruction, records the corresponding hopper's identification data, and simultaneously illuminates the work light 17 below the hopper door 8, displaying green, prompting the staff to put the screws into this hopper 7. The staff uses the button handle 20 on the hopper door 8 to open the hopper door 8, puts in the screws, and closes the electronic lock 9 of the hopper door 8. The work light 17 then goes out. If the data does not match, neither hopper door 8 can be opened, and an alarm is simultaneously issued through the display screen 21. This process is repeated to scan the QR codes on the packaging bags of the other 15 types of screws, placing each type of screw into the corresponding opened hopper 7 to complete the material requisition.

[0028] Only after the PLC controller recognizes that all hopper doors 8 are closed, and the barcode scanner 12 scans the QR code on another type of screw packaging bag, can the PLC controller randomly unlock the electronic lock 9 of another unused hopper door 8 according to a preset instruction. Otherwise, if the PLC controller recognizes that a hopper door 8 is still open, it cannot open the electronic lock 9 of another hopper door 8, and the warning light 18 below the hopper door 8 will light up red and beep, reminding the staff to close the electronic lock 9 of the hopper door 8 before proceeding with the next scanning operation. Only one hopper door 8 of hopper 7 can be opened at a time.

[0029] After material requisition is completed, the worker uses the ring handle 22 on the frame 1 to push the material cart to the corresponding assembly line loading side. The worker uses the barcode scanner 12 to scan the screw loading QR code on the loading side. The PLC controller, based on the received screw loading QR code data, retrieves the corresponding screw packaging bag QR code data and the corresponding hopper identification tag data, and opens the electronic lock 9 of the corresponding hopper door 8 according to the preset instructions. The work light 17 below the hopper door 8 illuminates, showing green. The worker uses the button handle 20 on the hopper door 8 to open the hopper door 8, removes the screw, completes the loading, closes the electronic lock 9 of the hopper door 8, and the work light 17 goes out. The worker pushes the material cart to the next equipment loading port and repeats the above loading operation until all screws are loaded. During the loading process, the warning light 18 below the hopper door 8 illuminates, similar to the aforementioned material requisition process.

[0030] After the material loading is completed, the staff scans their fingerprints again using fingerprint scanner 13, logs out of the MES system, and sends the material supply cart back to the charging position to charge the battery 6 so that other staff can work on other assembly lines.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wireless screw feeding cart, comprising a frame and four wheels, characterized in that, The chassis is equipped with a material storage module, a power supply module, and an automation terminal module; The power module, which includes a battery, is located at the bottom left side of the chassis and is used to power the entire vehicle. The storage module is located above the power module and includes several hoppers for storing screws of different specifications and models. Each hopper door is equipped with an electronic lock. The automated terminal module includes an industrial control all-in-one computer, a control cabinet, and a barcode scanner; the control cabinet is located to the right of the power module inside the vehicle frame, and the industrial control all-in-one computer and the barcode scanner are arranged side by side above the control cabinet; the control cabinet contains a control module and a wireless communication module; The industrial control all-in-one computer has a fingerprint scanner embedded on its surface, which is used to log in by recognizing the user's identity through fingerprints and sending the identity data to the control module; the barcode scanner is a QR code scanner, which is used to scan QR code information and send the scan data to the control module. The control module includes a PLC controller, which receives identity data sent by the fingerprint scanner, obtains the screw data required for different production lines, and then controls the opening of the silo door by scanning the data with a barcode scanner to write and retrieve the data. The storage module, barcode scanner, fingerprint scanner, and control module are all connected via a wireless communication module.

2. The wireless screw feeding cart according to claim 1, characterized in that: The power module is enclosed by a cover plate inside the bottom left side of the frame. The cover plate has a switch door with a retractable handle.

3. The wireless screw feeding cart according to claim 2, characterized in that: A power switch is embedded in the sealing plate.

4. The wireless screw feeding cart according to claim 1, characterized in that: The silo is divided into upper and lower layers with an equal number of silos in each layer, and each layer of silos is further divided into two rows of equal numbers, front and back.

5. The wireless screw feeding cart according to claim 1, characterized in that: The compartment door is equipped with a work light and an alarm light.

6. The wireless screw feeding cart according to claim 1, characterized in that: The compartment door has a transparent glass panel in the middle.

7. The wireless screw feeding cart according to claim 1, characterized in that: The right side of the compartment door is equipped with a button handle.

8. The wireless screw feeding cart according to claim 1, characterized in that: The control cabinet door is equipped with a retractable handle.

9. A wireless screw feeding cart according to claim 1, characterized in that: The industrial control all-in-one computer also has a display screen embedded on its surface.

10. A wireless screw feeding cart according to claim 1, characterized in that: A ring-shaped handle is provided at the right end of the frame.