Static electricity conducting and removing method of automatic production line

Abstract

The invention relates to the technical field of production line static electricity prevention, in particular to an automatic production line static electricity conducting and removing method. Based on a static conductive buffer contact device, the static conductive buffer contact device comprises a production line body, the production line body comprises two conveying belts which are symmetrically arranged, and the conveying direction of the conveying belts is the X direction or deviates from the X direction; in a conveying state, the tray rack is arranged on the two conveying belts, and the middle part is suspended; the two static conductive buffer contact device bodies are arranged at the two ends between the two conveying belts, and each static conductive buffer contact device body comprises a grounding base, a lifting air cylinder, a lifting base and a buffer contact piece; the lifting air cylinder is connected to the upper portion of the grounding base, the lifting base is connected to the upper portion of the lifting air cylinder, the buffering contact piece is connected to the X-direction side and / or the side deviating from the X-direction side of the lifting base, and the buffering contact piece is directly or indirectly grounded through a conductive structure. The static electricity conducting and removing scheme with the improved structure has the advantages of reliability and low cost.

Description

Technical Field

[0001] This invention relates to the field of anti-static technology for production lines, and specifically to a method for static electricity discharge in automated production lines. Background Technology

[0002] In automated production lines, finished product pallets travel long distances (typically exceeding 5 meters). Traditional fixed grounding wires cannot move with the pallets, leading to continuous accumulation of static electricity. Static voltage can reach thousands of volts, potentially causing electronic component breakdown and accidental ignition of hazardous materials. Existing solutions (such as metal chain dragging or roller conductive grounding) suffer from rapid wear, unstable grounding, and interference with equipment operation. Laying conductive tracks along the entire production line presents challenges due to high costs and complex maintenance. Using electrostatic brushes to contact the pallet sidewalls can easily generate sparks during high-speed pallet movement. Therefore, existing static electricity discharge solutions struggle to balance reliability and low cost. Summary of the Invention

[0003] The technical problem to be solved by this invention is to provide an automated production line static electricity discharge method that has the advantages of both reliability and low cost.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0005] An electrostatic discharge method for automated production lines is based on an electrostatic discharge buffer contact device. The electrostatic discharge buffer contact device includes a production line body, which includes two conveyor belts arranged symmetrically to each other. The conveying direction of the conveyor belts is either X-axis or opposite to X-axis. During the conveying process, the pallet is placed on the two conveyor belts with the middle part suspended in the air.

[0006] It also includes two electrostatic discharge buffer contact device bodies installed at both ends between the two conveyor belts. The electrostatic discharge buffer contact device body includes a grounding base, a lifting cylinder, a lifting seat, and a buffer contact element. The lifting cylinder is connected to the upper part of the grounding base, the lifting seat is connected to the upper part of the lifting cylinder, and the buffer contact element is connected to the X-direction side and / or the side away from the X-direction side of the lifting seat. The buffer contact element is directly or indirectly grounded through a conductive structure.

[0007] The electrostatic discharge method includes:

[0008] Before the pallet is conveyed to the X-axis end or away from the X-axis end by the conveyor belt, the lifting cylinder is controlled to raise the lifting seat to the same height as the buffer contact and the side of the pallet. The buffer contact then contacts the side of the pallet and discharges static electricity from the pallet by grounding the buffer contact. After discharge, the lifting cylinder is controlled to lower the lifting seat, so that the buffer contact is removed from the pallet and the pallet can pass normally.

[0009] Furthermore, in the electrostatic discharge method of the aforementioned automated production line, the electrostatic discharge buffer contact device includes a connecting rod, a buffer mechanism, and a conductive contact. The connecting rod is connected to the lifting seat through the buffer mechanism, and the conductive contact is connected to the end of the connecting rod.

[0010] Furthermore, in the electrostatic discharge method of the aforementioned automated production line, the conductive contact in the electrostatic discharge buffer contact device includes a copper impact head and conductive rubber connected to the copper impact head.

[0011] Furthermore, in the electrostatic discharge method of the aforementioned automated production line, the conductive contact in the electrostatic discharge buffer contact device consists of a copper impact head and a conductive brush array connected to the copper impact head.

[0012] Furthermore, in the electrostatic discharge method of the aforementioned automated production line, the end face of the conductive contact in the electrostatic discharge buffer contact device is arc-shaped.

[0013] Furthermore, in the electrostatic discharge method of the aforementioned automated production line, the electrostatic discharge buffer contact device includes a buffer mechanism comprising a limiting groove disposed in the X direction and / or away from the X direction of the lifting seat, a sliding block slidably connected in the limiting groove, a spring or hydraulic buffer connected to the sliding block and the limiting groove, and the sliding block being connected to a connecting rod.

[0014] The beneficial effects of this invention are as follows: By setting two electrostatic discharge buffer contact devices at both ends between the two conveyor belts, before the pallet is conveyed to the X-axis end or away from the X-axis end, the lifting cylinder is controlled to raise the lifting seat to the same height as the buffer contact and the side of the pallet. This allows the buffer contact to buffer against the side of the pallet, and the grounding of the buffer contact dissipates the static electricity from the pallet. After dissipation, simply controlling the lifting cylinder to lower the lifting seat allows the buffer contact to remove its obstruction of the pallet, allowing the pallet to pass normally. This improved electrostatic discharge scheme combines the advantages of reliability and low cost. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an electrostatic discharge buffer contact device for an automated production line according to a specific embodiment of the present invention;

[0016] Figure 2 for Figure 1 Enlarged view of part A;

[0017] Figure 3 This is a schematic diagram of the structure of the electrostatic discharge buffer contact device body of an automated production line electrostatic discharge buffer contact device according to a specific embodiment of the present invention.

[0018] Label Explanation:

[0019] 1. Conveyor belt;

[0020] 2. Pallet;

[0021] 3. Electrostatic discharge buffer contact device body; 31. Grounding base; 32. Lifting cylinder; 33. Lifting seat; 34. Buffer contact; 341. Connecting rod; 342. Buffer mechanism; 3421. Limiting groove; 3422. Sliding block; 3423. Spring; 343. Conductive contact; 3431. Copper impact head; 3432. Conductive rubber. Detailed Implementation

[0022] To explain in detail the technical content, objectives, and effects of the present invention, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0023] Please refer to Figures 1 to 3 The present invention relates to a static electricity removal method for an automated production line, characterized in that it is based on a static electricity conductive buffer contact device, the static electricity conductive buffer contact device includes a production line body, the production line body includes two conveyor belts 1 arranged symmetrically to each other, the conveying direction of the conveyor belts 1 is X-direction or opposite to X-direction; in the conveying state, the tray 2 is placed on the two conveyor belts 1, with the middle part suspended.

[0024] It also includes two electrostatic discharge buffer contact device bodies 3 installed at both ends between the two conveyor belts 1. Each electrostatic discharge buffer contact device body 3 includes a grounding base 31, a lifting cylinder 32, a lifting seat 33, and a buffer contact 34. The lifting cylinder 32 is connected to the upper part of the grounding base 31, the lifting seat 33 is connected to the upper part of the lifting cylinder 32, and the buffer contact 34 is connected to the X-direction side and / or the side away from the X-direction side of the lifting seat 33. The buffer contact 34 is directly or indirectly grounded through a conductive structure. For example, the buffer contact 34 is connected to the grounding base 31 through a wire, and the conductive base 31 is connected to the workshop main grounding system through a copper cable. The grounding resistance is ≤4Ω.

[0025] The electrostatic discharge method includes:

[0026] Before the pallet is conveyed to the X-axis end or away from the X-axis end by the conveyor belt, the lifting cylinder is controlled to raise the lifting seat to the same height as the buffer contact and the side of the pallet. The buffer contact then contacts the side of the pallet and discharges static electricity from the pallet by grounding the buffer contact. After discharge, the lifting cylinder is controlled to lower the lifting seat, so that the buffer contact is removed from the pallet and the pallet can pass normally.

[0027] In the above embodiment, by setting two electrostatic discharge buffer contact device bodies 3 at both ends between the two conveyor belts 1, before the pallet 2 is conveyed by the conveyor belt 1 to the X-axis end or away from the X-axis end, the lifting cylinder 32 drives the lifting seat 33 to rise to the same height as the buffer contact 34 and the side of the pallet 2. This allows the buffer contact 34 to buffer against the side of the pallet 2, and the grounding of the buffer contact 34 discharges the static electricity from the pallet 2. After discharge, simply controlling the lifting cylinder 32 to lower the lifting seat 33 allows the buffer contact 34 to remove its obstruction of the pallet 2, allowing the pallet 2 to pass normally. This improved electrostatic discharge scheme combines the advantages of reliability and low cost.

[0028] Specifically, the static-dissipating buffer contact device body 3 is a structure independent of the production line. It features a simple structure, static discharge only at the beginning and end of the conveyor, initial static electricity is released before the start of the journey, and residual charge is eliminated after the journey ends. It has the advantage of low cost, and the buffer structure reduces impact damage to the pallet 2 (impact force reduction ≥60%). Corresponding sensors such as proximity switches and photoelectric sensors can also be installed on the static-dissipating buffer contact device body 3 to identify the moving position of the pallet 2. When the static-dissipating buffer contact device body 3 contacts and discharges the static electricity of the pallet 2, the lifting cylinder 32 is automatically controlled by the PLC to descend to avoid the pallet 2 and allow it to pass normally. This structure and control method reduces the failure rate by 90%. The above solution also has the advantage of good compatibility and is suitable for metal / composite material pallets 2. Installation does not require modification of the production line.

[0029] Preferably, a buzzer and / or indicator light can also be provided on the body 3 of the electrostatic discharge buffer contact device to provide feedback on the electrostatic discharge status.

[0030] As a preferred embodiment, refer to Figure 3 The buffer contact 34 includes a connecting rod 341, a buffer mechanism 342, and a conductive contact 343. The connecting rod 341 is connected to the lifting seat 33 through the buffer mechanism 342, and the conductive contact 343 is connected to the end of the connecting rod 341.

[0031] As a preferred embodiment, refer to Figure 3 The conductive contact 343 includes a copper impact head 3431 and a conductive rubber 3432 connected to the copper impact head 3431.

[0032] In a preferred embodiment, the conductive contact 343 is a copper impact head 3431 and a conductive brush array connected to the copper impact head 3431.

[0033] As a preferred embodiment, the end face of the conductive contact 343 is arc-shaped, which further enhances the buffering characteristics of the conductive contact 343.

[0034] As a preferred embodiment, refer to Figure 3 The buffer mechanism 342 includes a limiting groove 3421 disposed in the X direction and / or away from the X direction of the lifting seat 33. A sliding block 3422 is slidably connected in the limiting groove 3421. A spring 3423 or a hydraulic buffer is connected to the sliding block 3422 and the limiting groove 3421. The sliding block 3422 is connected to the connecting rod 341.

[0035] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A method for static electricity removal in an automated production line, characterized in that, Based on the electrostatic discharge buffer contact device, the electrostatic discharge buffer contact device includes a production line body, the production line body includes two conveyor belts arranged symmetrically to each other, the conveying direction of the conveyor belts is X-axis or opposite to X-axis; in the conveying state, the pallet is placed on the two conveyor belts and suspended in the middle. It also includes two electrostatic discharge buffer contact device bodies installed at both ends between the two conveyor belts. The electrostatic discharge buffer contact device body includes a grounding base, a lifting cylinder, a lifting seat, and a buffer contact element. The lifting cylinder is connected to the upper part of the grounding base, the lifting seat is connected to the upper part of the lifting cylinder, and the buffer contact element is connected to the X-direction side and / or the side away from the X-direction side of the lifting seat. The buffer contact element is directly or indirectly grounded through a conductive structure. The electrostatic discharge method includes: Before the pallet is conveyed to the X-axis end or away from the X-axis end by the conveyor belt, the lifting cylinder is controlled to raise the lifting seat to the same height as the buffer contact and the side of the pallet. The buffer contact then contacts the side of the pallet and discharges static electricity from the pallet by grounding the buffer contact. After discharge, the lifting cylinder is controlled to lower the lifting seat, so that the buffer contact is removed from the pallet and the pallet can pass normally.

2. The electrostatic discharge method for an automated production line according to claim 1, characterized in that, In the electrostatic discharge buffer contact device, the buffer contact includes a connecting rod, a buffer mechanism, and a conductive contact. The connecting rod is connected to the lifting seat through the buffer mechanism, and the conductive contact is connected to the end of the connecting rod.

3. The electrostatic discharge method for an automated production line according to claim 2, characterized in that, In the electrostatic discharge buffer contact device, the conductive contact includes a copper impact head and conductive rubber connected to the copper impact head.

4. The electrostatic discharge method for an automated production line according to claim 2, characterized in that, In the electrostatic discharge buffer contact device, the conductive contact is a copper impact head and a conductive brush array connected to the copper impact head.

5. The electrostatic discharge method for an automated production line according to claim 2, characterized in that, In the electrostatic discharge buffer contact device, the end face of the conductive contact is arc-shaped.

6. The electrostatic discharge method for an automated production line according to claim 2, characterized in that, In the electrostatic discharge buffer contact device, the buffer mechanism includes a limiting groove provided in the X direction and / or away from the X direction of the lifting seat, a sliding block is slidably connected in the limiting groove, a spring or hydraulic buffer is connected to the sliding block and the limiting groove, and the sliding block is connected to the connecting rod.

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