Static electricity removing device for prepreg stacking table

Abstract

The utility model discloses a prepreg stacking table static electricity removing device which comprises a supporting piece, a grounding piece and a static electricity removing piece, the supporting piece comprises a stacking table, a sliding groove is horizontally formed in the top face of the stacking table in a penetrating mode, a two-way screw rod is horizontally and rotatably connected to the bottom face of the stacking table, and two clamping plates are symmetrically connected to the two sides of the sliding groove of the stacking table in a sliding mode. The grounding piece comprises a wire, one end of the wire is fixedly provided with a conductive screw cylinder, the other end of the wire is fixedly provided with a conductive screw rod, the conductive screw cylinder is fixedly provided with a conductive screw rod, and the other end of the conductive screw rod is fixedly provided with a conductive screw rod. And the conductive screw cylinder is in threaded assembly connection with the conductive stud, a ground nail is vertically arranged at the bottom of the other end of the wire, and static electricity removing parts are arranged on the two symmetrical sides of the top face of the stacking table correspondingly, so that static electricity removing treatment on the multiple stacked prepregs is completed.

Description

Technical Field

[0001] This utility model relates to the field of stacking platform technology, and more specifically, to a static electricity removal device for a prepreg stacking platform. Background Technology

[0002] Prepreg lamination stations are key pieces of equipment in the production of multilayer printed circuit boards (PCBs) and composite material products. They are primarily used to precisely align and stack multilayer prepregs with copper foil or other reinforcing materials, preparing them for subsequent thermoforming. During the lamination process, the smooth surfaces of the prepregs and copper foil, which are prone to friction, often accumulate a large amount of static electricity. This not only causes the sheets to attract dust and impurities, affecting lamination quality, but can also damage electronic components due to electrostatic discharge (ESD). Therefore, effectively removing static electricity and ensuring lamination accuracy and sheet quality are crucial technical challenges that need to be addressed in the lamination process.

[0003] The existing publication, CN201566194U, entitled "A Dustproof Stacking Table," features raised platforms around its perimeter, covered with damp, degreased cotton cloth to absorb impurities or resin dust falling during the stacking process, thus providing good dust protection and preventing pits or impurities from appearing on the surface of the finished copper-clad laminate. However, while this stacking table effectively reduces the impact of dust on the sheet quality, it lacks an anti-static component. Static electricity still accumulates during the stacking of the prepreg and copper foil, potentially affecting the stacking quality. Since static electricity residue must be avoided when processing metal sheets, anti-static treatment is necessary to ensure stacking quality, a function that the aforementioned dustproof stacking table cannot provide.

[0004] Currently, common static electricity removal methods in the industry mainly include manual grounding discharge, electrostatic brush static removal, and ion fan static removal. Among them, manual grounding discharge relies on manual operation, has poor stability, and is difficult to meet the automation requirements of production lines; while electrostatic brushes can eliminate static electricity to a certain extent, the contact-based cleaning method may damage the surface of the prepreg; and while ion fans are widely used, traditional ion fans are usually stand-alone devices and have not been effectively integrated with the stacking process, resulting in unstable static electricity removal effects. In addition, existing ion fan equipment is bulky and not convenient to integrate directly onto the stacking table, affecting production efficiency and space utilization. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] To address the problems existing in the prior art, the purpose of this utility model is to provide a static electricity removal device for a prepreg stacking table. By clamping a conductive copper sheet and connecting it to a grounding system, and combining it with the static electricity removal function of an ion fan, it effectively reduces the accumulation of static electricity on the prepreg, thereby optimizing the production environment, ensuring stacking accuracy, and improving product quality.

[0007] 2. Technical Solution

[0008] To solve the above problems, the present invention adopts the following technical solution.

[0009] An antistatic device for a prepreg stacking platform includes a support, a grounding component, and an antistatic component. The support includes a stacking platform with a horizontally penetrating groove on its top surface and a bidirectional screw horizontally rotatably connected to its bottom surface. Two clamping plates are symmetrically slidably connected to the groove on both sides of the platform, and screw holes are fixed to the bottom surfaces of the two clamping plates. The screw holes are threadedly connected to the bidirectional screw. Copper sheets are vertically fixed to the adjacent vertical ends of the two clamping plates, and conductive studs are fixed to the copper sheets through the clamping plates. The grounding component includes a wire with a conductive cylinder fixed to one end, and the conductive cylinder is threadedly connected to the conductive stud. A grounding nail is vertically installed at the bottom of the other end of the wire. Antistatic components are installed on both symmetrical sides of the top surface of the stacking platform.

[0010] Furthermore, the other end of the wire is vertically fixed with a screw, and a screw cylinder is assembled on the screw with vertical threads.

[0011] Furthermore, the bottom end of the screw is vertically connected to the top surface of the ground nail.

[0012] Furthermore, the static elimination component includes a fixed frame and an air box. The air box is fixed inside the fixed frame, and a mesh is fixed through the vertical end face of the air box near the clamping plate. An ion fan is fixedly connected to the other symmetrical vertical end face of the air box, and a filter cartridge is fixedly connected to the air inlet end of the ion fan.

[0013] Furthermore, one end of the filter cartridge is open, and the inside of the filter cartridge is filled with filter cotton. A screw mesh cover is threaded onto the opening of the filter cartridge.

[0014] Furthermore, the mounting plate is threaded with fixing screws, and the fixing screws are fixedly assembled with the bottom end of the fixing frame.

[0015] Furthermore, a locking bolt is installed at the bottom of the stacking platform with a vertical thread.

[0016] 3. Beneficial effects

[0017] Compared with existing technologies, the advantages of this utility model are:

[0018] This utility model provides a static electricity elimination device for a prepreg stacking table. Through optimized structural design, it achieves efficient elimination of static electricity during the prepreg stacking process, and improves the stacking accuracy and stability. It effectively solves the problem in the prior art that it is impossible to simultaneously eliminate static electricity and maintain stable clamping.

[0019] This invention employs a clamping method using a bidirectional screw and clamping plates. The bidirectional screw is made of high-strength alloy steel and drives the two clamping plates to slide symmetrically along the groove via threads. This ensures that multiple stacked prepreg sheets are stably clamped, preventing displacement during the stacking process. The clamping plates are made of aluminum alloy, ensuring a lightweight design while enhancing corrosion resistance. Furthermore, the sliding of the clamping plates is achieved through the cooperation of screw holes and the bidirectional screw, resulting in a uniform distribution of clamping force and improved stacking accuracy.

[0020] This invention features a copper sheet fixed to the vertical end face of a clamping plate. The copper sheet is made of high-purity copper, possessing excellent conductivity. It is connected to a conductive cylinder via conductive studs, allowing static electricity to be conducted from the prepreg to the grounding system. This device forms a complete conductive path through the conductive studs, conductive cylinder, and wires, ultimately releasing static electricity to the ground via a grounding nail. This avoids dust accumulation caused by static electricity buildup, thus improving the cleanliness of the prepreg. Furthermore, the grounding nail is made of stainless steel and designed with a tapered structure to ensure deep penetration into the ground, reducing grounding resistance and improving discharge efficiency.

[0021] This invention features static eliminators on symmetrical sides of the stacking table. Each static eliminator includes a fixed frame and an air box. The air box contains an ion fan and a filter cartridge. The negative ions generated by the ion fan evenly cover the multiple stacked semi-cured sheets, further neutralizing static electricity on the sheet surface. This device uses a high-efficiency ion fan (model XYZ-2000) that provides an adjustable airflow speed of 1–3 m / s, which is evenly distributed through the mesh of the air box, improving the static elimination effect. The filter cartridge effectively filters out fine particulate matter in the air, preventing dust from entering the stacking area with the airflow, thus ensuring the cleanliness of the static elimination process and improving the final product quality.

[0022] This utility model employs a threaded fixing structure, with fixing screws installed on the stacking platform to ensure the fixed frame is securely installed, preventing loosening during long-term operation and ensuring effective static elimination. A locking bolt with an anti-slip knob design is located at the bottom of the stacking platform, facilitating easy adjustment of the fixing force, improving the overall stability of the device, and effectively preventing accuracy deviations caused by vibration. The device adopts a modular design, with each component being detachable and replaceable, facilitating maintenance and adjustment, further extending the equipment's service life and production adaptability.

[0023] This invention combines mechanical clamping, conductive grounding, and ion wind static elimination, solving the problem that existing stacking tables cannot effectively remove static electricity, and improving the accuracy, stability, and cleanliness of prepreg stacking, thereby improving production efficiency and finished product quality. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the overall structure of the present invention in an disassembled state;

[0026] Figure 3 This is a schematic diagram of the support component in its disassembled state during the implementation of this utility model;

[0027] Figure 4 This is a schematic diagram of the grounding component in its disassembled state during the implementation of this utility model;

[0028] Figure 5 This is a schematic diagram of the static eliminator in its disassembled state during the implementation of this utility model.

[0029] Explanation of the labels in the diagram:

[0030] 1. Support component; 11. Stacking platform; 111. Slide groove; 112. Fixing screw; 113. Locking bolt; 12. Double-acting screw; 13. Clamping plate; 131. Screw hole block; 14. Copper sheet; 141. Conductive stud; 2. Grounding component; 21. Wire; 22. Conductive screw barrel; 23. Screw; 24. Screw barrel; 25. Ground nail; 3. Stabilizer component; 31. Fixing frame; 32. Air box; 33. Mesh; 34. Ionizing fan; 35. Filter cartridge; 36. Filter cotton; 37. Screw mesh cover. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. 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 based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0032] Please see Figure 1-5An antistatic device for a prepreg stacking table includes a support 1, a grounding component 2, and an antistatic component 3. The support 1 includes a stacking table 11, with a horizontally penetrating groove 111 on its top surface. The inner surface of the groove 111 is precision machined to ensure the clamping plates 13 remain stable and smooth during sliding, reducing the impact of sliding friction on clamping accuracy. A bidirectional screw 12 is horizontally rotatably connected to the bottom surface of the stacking table 11. The bidirectional screw 12 is made of high-strength alloy steel with a wear-resistant surface treatment to improve durability and corrosion resistance, extending its service life. Bearing seats are provided at both ends of the bidirectional screw 12 to ensure stable operation during rotation and prevent shaking from affecting the clamping effect. Two clamping plates 13 are symmetrically slidably connected to both sides of the groove 111 of the stacking table 11. The two clamping plates 13 are made of highly conductive aluminum alloy with an oxidized surface treatment to improve... It features high corrosion resistance, ensuring that oxidation will not affect the static discharge effect during long-term use. Screw holes 131, made of brass, are fixed to the bottom surfaces of the two clamping plates 13 to ensure smooth thread engagement with the bidirectional screw 12 and to provide wear resistance. The screw holes 131 and the bidirectional screw 12 are threaded together, ensuring that the bidirectional screw 12 can rotate to drive the two clamping plates 13 to slide relative to each other, thus clamping the prepreg. Copper sheets 14, made of high-purity copper, are vertically fixed to adjacent vertical end faces of the two clamping plates 13 to ensure low resistivity and improve the static discharge effect. Conductive studs 141, made of silver-plated copper, are fixed to the copper sheets 14 through the clamping plates 13 to enhance conductivity. These studs are threaded onto the clamping plates 13 to ensure tight contact between the copper sheets 14 and the conductive studs 141, preventing poor contact from affecting the static discharge effect.

[0033] The grounding component 2 includes a conductor 21, which is made of multi-strand copper core wire and covered with a high-temperature resistant insulation layer to ensure stable and reliable conductivity. One end of the conductor 21 is fixed with a conductive screw 22, which is made of galvanized copper alloy to enhance oxidation resistance and ensure long-term stable conductivity. The conductive screw 22 is threadedly connected to the conductive stud 141 to ensure that static electricity can be smoothly transmitted from the copper sheet 14 to the conductor 21 via the conductive stud 141. The other end of the conductor 21 is vertically provided with a grounding nail 25, which is made of stainless steel and has a sharp conical design to ensure that the grounding nail 25 can be smoothly inserted into the ground and to ensure a low grounding resistance, thereby improving the static discharge effect. The top surface of the stacking platform 11 is symmetrically provided with static eliminators 3 on both sides. The static eliminators 3 are symmetrically arranged on both sides to ensure that the negative ion wind evenly covers the semi-cured sheet and improves the static elimination effect.

[0034] See Figure 3The other end of the conductor 21 is vertically fixed with a screw 23. The screw 23 is made of galvanized steel and its surface is treated with anti-corrosion to ensure long-term stability. A screw barrel 24 is vertically threaded on the screw 23. The screw barrel 24 is made of high-strength alloy steel and its surface is sprayed with an insulating coating to prevent external interference from affecting the conductivity.

[0035] See Figure 4 The bottom end of the screw cylinder 24 is vertically connected to the top surface of the ground nail 25. The threaded connection ensures that the screw cylinder 24 and the ground nail 25 are tightly fixed, so that static electricity can be stably conducted into the ground and prevent loosening from affecting the grounding effect.

[0036] See Figure 5 The antistatic component 3 includes a fixed frame 31 and an air box 32. The fixed frame 31 is made of high-strength aluminum alloy and coated with an antistatic coating to prevent the external environment from affecting the antistatic effect. The air box 32 is fixed inside the fixed frame 31. The air box 32 is made of high-impact resistant ABS plastic and has multiple ventilation holes to ensure smooth airflow of negative ions. A mesh 33 is fixed through the vertical end face of the air box 32 near the clamping plate 13. The mesh 33 is made of stainless steel and coated with an antistatic coating to improve the filtration effect and prevent external dust from affecting the working efficiency of the ion fan 34. The ion fan 34 is fixed through the other symmetrical vertical end face of the air box 32. The ion fan 34 is a high-efficiency ion fan of model XYZ-2000 with an adjustable wind speed range of 1 to 3 m / s to ensure the antistatic effect on the semi-cured sheet. A filter cartridge 35 is fixed through the air inlet end of the ion fan 34. The filter cartridge 35 is made of polyester fiber and coated with a nano dustproof coating to improve air filtration efficiency.

[0037] See Figure 5 The filter cartridge 35 has an opening at one end, and the inside of the filter cartridge 35 is filled with filter cotton 36. The filter cotton 36 is made of high-density electrostatic filter cotton, which can effectively adsorb small particles in the air and prevent dust from entering the air box 32. The opening of the filter cartridge 35 is threaded with a screw mesh cover 37. The screw mesh cover 37 is made of stainless steel and is designed with multiple evenly distributed ventilation holes to ensure smooth air intake and prevent external particles from entering the filter cartridge 35.

[0038] See Figure 5 The stacking platform 11 is threaded with fixing screws 112. The fixing screws 112 are made of galvanized steel and are equipped with anti-loosening washers to ensure that the fixing frame 31 can be installed firmly and will not loosen due to long-term use. The fixing screws 112 are fixedly assembled with the bottom of the fixing frame 31 to ensure the stability of the air box 32 and ensure that the ion fan 34 can work stably.

[0039] See Figure 3The bottom end of the stacking platform 11 is fitted with a vertical threaded locking bolt 113. The locking bolt 113 is made of high-strength alloy steel and is nickel-plated on the surface to improve corrosion resistance. The top of the locking bolt 113 is equipped with an anti-slip knob for easy manual adjustment of the fixing force, ensuring that the stacking platform 11 can be stably fixed on the support structure and improving the stability of the whole machine operation.

[0040] The working principle of this utility model:

[0041] In use, the prepregs are stacked sequentially on the top surface of the stacking platform 11 of the support 1 according to production requirements. The screw hole block 131 at the bottom of the clamping plate 13 is driven to move laterally in the slide groove 111 by manually rotating the double-ended screw 12. This causes the clamping plate 13 to slide relative to the slide groove 111 of the stacking platform 11, squeezing and clamping multiple stacked prepregs. The two sides of the stacked prepregs are in contact with the copper sheet 14 on the clamping plate 13. The static electricity on the stacked prepregs is transferred to the copper sheet 14. The screw cylinder 24 on the grounding component 2 is rotated and moves vertically on the screw 23, causing the ground nail 25 to be inserted into the ground. The static electricity is transferred to the conductive screw cylinder 22 of the grounding component 2 through the conductive stud. The static electricity is conducted to the ground through the wire 21, screw 23, screw cylinder 24 and ground nail 25, completing the static electricity removal treatment on the stacked prepregs.

[0042] Meanwhile, the fixing frame 31 of the static elimination component 3 is fixedly assembled and connected on both sides of the stacking platform 11 by fixing screws 112. The ion fan 34 on the air box 32 is started to drive the external air into the filter cartridge 35. The dust in the air is filtered by the filter cotton 36, and negative ion wind is generated and enters the air box 32. The negative ion wind contacts multiple stacked semi-cured sheets to perform static elimination treatment.

[0043] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A semi-cured sheet layup table static electricity removing device, characterized by, The utility model provides a static electricity removing device, including support (1), ground (2) and static electricity removing device (3), support (1) includes the matching table (11), the top surface of matching table (11) is equipped with the sliding slot (111) through horizontally, and the bottom surface of matching table (11) is rotatably connected with two -way screw rod (12), the both sides symmetry of sliding slot (111) of matching table (11) are slidably connected with two clamping plates (13), and the bottom surface of two clamping plates (13) is fixed with screw hole block (131), and screw hole block (131) is screwed through with two -way screw rod (12) assembly, the vertical end surface of two clamping plates (13) adjacent is vertically fixed with copper sheet (14) all, and copper sheet (14) is fixed with conductive stud (141) through clamping plate (13), ground (2) includes wire (21), one end of wire (21) is fixed with conductive cylinder (22), and conductive cylinder (22) is screwed with conductive stud (141) assembly connection, the other end bottom of wire (21) is vertically provided with ground nail (25), the top surface symmetry of matching table (11) both sides are provided with static electricity removing device (3).

2. The device according to claim 1, wherein the device is a prepreg layup table de- electrostaticizer. The other end of wire (21) is vertically fixed with screw rod (23), and screw rod (23) is vertically screwed with screw cylinder (24).

3. The device according to claim 2, wherein: the device is a prepreg layup table destaticizer. The bottom end of screw cylinder (24) is vertically connected to the top surface of ground nail (25).

4. The device according to claim 1, wherein the device is a prepreg layup table de- electrostaticizer. Static electricity removing device (3) includes fixed frame (31) and wind box (32), the inside of fixed frame (31) is fixed with wind box (32), and wind box (32) is fixed with mesh (33) through near the vertical end surface of clamping plate (13), the other symmetry vertical end surface of wind box (32) is fixed with ion fan (34) communication, and the air inlet end of ion fan (34) is fixed with filter cartridge (35) communication.

5. The prepreg layup table electrostatic discharge device of claim 4, wherein: One end of filter cartridge (35) is provided with an opening, and the inside of filter cartridge (35) is filled with filter cotton (36), and screw net cover (37) is screwed on the opening of filter cartridge (35).

6. The device according to claim 4, wherein the device is a prepreg layup table de- electrostaticizer. Fixed screw (112) is screwed on the matching table (11), and the bottom end of fixed frame (31) is fixedly assembled with fixed screw (112).

7. The prepreg layup table electrostatic discharge device of claim 1, wherein: Locking bolt (113) is screwed vertically through the bottom end of matching table (11).

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