Circulation vehicle for printed circuit board
By designing a transfer cart with an adjustable tilt angle support platform and multiple liftable back panels, the problems of unstable support and transportation of circuit boards of various specifications in ordinary flatbed transfer carts were solved. This achieved stable support and efficient transportation of circuit boards of various specifications, improving the quality and yield of circuit boards.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-29
- Publication Date
- 2026-04-03
AI Technical Summary
Existing ordinary flatbed transport vehicles do not provide ideal support stability for circuit boards during use, which can easily lead to circuit board collapse. Furthermore, they cannot transport multiple circuit boards of different sizes and specifications at the same time, resulting in a high product defect rate.
A transfer cart for printed circuit boards has been designed, comprising an adjustable tilt support platform and multiple liftable back plates. The back plates are stably connected to the support platform through a positioning component, which can adapt to circuit boards of different sizes and specifications, provide stable support and resist external interference.
It effectively prevents circuit boards from collapsing during placement and transfer, increases storage and transportation capacity, expands the applicability of transfer vehicles, ensures the quality and yield of circuit boards, and avoids scratches and wear.
Smart Images
Figure CN224075589U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of printed circuit board processing technology, and in particular to a transfer cart for printed circuit boards. Background Technology
[0002] In the printed circuit board (PCB) manufacturing process, transfer carts are essential tools for material handling and storage, primarily used for transferring PCBs between different processes / stations. Currently, the most commonly used type of transfer cart is the standard flatbed transfer cart.
[0003] The aforementioned ordinary flatbed transfer carts are typically flatbeds or trolleys with guardrails. Although they have a simple structure and low manufacturing cost, they have the following shortcomings during use: ① The support stability of ordinary flatbed transfer carts for circuit boards is not ideal during use. The circuit boards may collapse if not handled carefully, which is detrimental to the yield of circuit board products; ② When using ordinary flatbed transfer carts to transfer circuit boards, it is generally required that one type of circuit board be transferred per cart. If multiple circuit boards of different types / sizes are transferred through one flatbed transfer cart, the different sizes of the circuit board products can easily cause scratches on the board surface and scrap, thereby increasing the defect rate of circuit board products and hindering the processing and production of circuit boards.
[0004] In view of the above, this utility model is hereby proposed. Summary of the Invention
[0005] To overcome the aforementioned shortcomings, this utility model provides a transfer cart for printed circuit boards, which has a simple, novel, and reasonable structure. On the one hand, it can provide more stable support for printed circuit boards and better resist external interference, effectively preventing the printed circuit boards from collapsing or other defects during placement and transfer, thus ensuring the quality of the printed circuit boards. On the other hand, it can increase storage / transport capacity while also enabling the transport of multiple printed circuit boards of different sizes and specifications in one cart, greatly expanding the applicability of the transfer cart, improving its practicality, and effectively ensuring the quality of the printed circuit boards.
[0006] The technical solution adopted by this utility model to solve its technical problem is: a transfer cart for printed circuit boards, including a cart body and support components. The cart body is provided with a base that can walk on the ground, a side armrest vertically and fixedly set on the rear side of the base, and a support platform inclined above the base. The inclination angle of the support platform relative to the base is adjustable. Multiple support components are provided and arranged at intervals along the front-back direction. Each support component is provided with two lifting members arranged opposite to each other on the left and right sides of the base, a back plate rotatably connected between the two lifting members and placed above the support platform, and two positioning components respectively set on the left and right sides of the back plate. The back plate can move up and down under the drive of the lifting members, and the back plate is also positioned and connected to the support platform through the positioning components.
[0007] As a further improvement of this utility model, in each of the support components, the bottom surface of the back plate facing the support platform or the extended surface of the bottom surface is in contact with the upper surface of the support platform.
[0008] As a further improvement of this utility model, the support plate is a cuboid plate, with its front and rear sides on both sides along its length, and grooves extending along its length are recessed on the left and right sides of the support plate.
[0009] In each of the support components, the back plate is a cuboid plate, with its left and right sides along its length, and grooves extending along its width and opening onto the bottom surface of the back plate are recessed on the left and right sides respectively; each of the positioning components is provided with a slide rod, a tension spring, a pin with a socket, and a bolt. The slide rod is slidably disposed in the groove, the tension spring is connected between the upper end of the slide rod and the top wall of the groove to provide elastic tension to the slide rod, the pin is connected to the lower end of the slide rod through a universal joint and can be inserted into the slot, and the bolt passes through the slot and the socket in sequence and is screwed into the nut.
[0010] As a further improvement of this utility model, the upper and lower side walls of the slot are respectively provided with elongated through holes extending along their length direction for the bolts to pass through.
[0011] As a further improvement of this utility model, in each of the support components, the lifting member adopts a telescopic rod structure with at least two sections that are assembled and can be telescopically positioned and connected.
[0012] As a further improvement of this utility model, the trolley body is also provided with a support seat fixedly disposed between the rear side of the base and the lower part of the side armrest, and a lifting member disposed on the front side of the base. The rear side of the support plate is rotatably connected to the support seat, and the front side of the support plate can move up and down under the drive of the lifting member.
[0013] As a further improvement of this utility model, the lifting component adopts a telescopic rod structure with at least two sections that are assembled and can be telescopically positioned and connected, or adopts a pneumatic lifting column, or adopts an electric lifting column.
[0014] As a further improvement of this utility model, the trolley body is also provided with a plurality of auxiliary support rods, the lower sides of the plurality of auxiliary support rods being respectively hinged to the left and right sides of the base, and the upper sides of the plurality of auxiliary support rods being respectively hinged to the left and right sides of the support platform.
[0015] As a further improvement of this utility model, casters with brakes are installed at the four corners of the base; and handles for the operator to hold are fixedly provided on the side support frame.
[0016] As a further improvement of this utility model, a large back plate is also provided, the upper side of which is fixedly connected to the upper part of the side armrest, and the lower side of which is fixedly connected to the support base.
[0017] The beneficial effects of this utility model are as follows: Compared with the prior art, ① this utility model innovatively provides a transfer cart. By adjusting and positioning the position of the support platform and the back plate in the transfer cart, the back plate can achieve a good cooperation with the support platform. That is, the two work together to provide more stable support for the printed circuit board and better resistance to external interference, thereby effectively avoiding the collapse of the printed circuit board during placement and transfer, ensuring the quality / yield of the printed circuit board, and facilitating the transfer of the printed circuit board. ② By configuring multiple support components in the transfer cart, storage / transport capacity can be increased, and multiple printed circuit boards of different sizes and specifications can be transported in one cart. Specifically, by adjusting the back plates on multiple support components to different height positions, multiple printed circuit boards of different types / sizes can be supported. This greatly expands the applicability and practicality of the transfer cart, while also avoiding damage and wear to the printed circuit boards caused by mixing different types / sizes, effectively ensuring the quality of the printed circuit boards. ③ The transfer cart described in this utility model has a simple, novel, and reasonable structure, making it very convenient to load and unload boards, which is conducive to production implementation. Attached Figure Description
[0018] Figure 1This is a schematic diagram of the structure of the transfer cart for printed circuit boards described in this utility model;
[0019] Figure 2 for Figure 1 An enlarged structural diagram of part A shown in the figure.
[0020] Referring to the accompanying drawings, the following explanations are provided:
[0021] 10. Base; 11. Side support frame; 12. Support platform; 120. Slot; 13. Support seat; 14. Lifting component; 15. Auxiliary support rod; 16. Caster wheel with brake; 17. Handle; 20. Lifting component; 21. Back plate; 210. Slide groove; 22. Positioning component; 220. Slide rod; 221. Tension spring; 222. Pin; 223. Universal joint; 3. Large back plate. Detailed Implementation
[0022] The preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0023] Example 1
[0024] This embodiment 1 provides a transfer cart for printed circuit boards, used to transfer printed circuit boards between different processes / stations.
[0025] Please see the appendix Figure 1 and 2 As shown, the transfer cart provided in Embodiment 1 mainly includes a cart body and support components. The cart body has a base 10 capable of walking on the ground, a side support frame 11 vertically and fixedly mounted on the rear side of the base 10, and a support platform 12 inclined above the base 10. The inclination angle of the support platform 12 relative to the base 10 is adjustable. Multiple support components are provided and spaced apart along the front-rear direction. Each support component has two lifting members 20 oppositely mounted on the left and right sides of the base 10, a back plate 21 rotatably connected between the two lifting members 20 and positioned above the support platform 12, and two positioning components 22 respectively mounted on the left and right sides of the back plate 21. The back plate 21 can move up and down under the action of the lifting members 20, and the back plate 21 can also be positioned and connected to the support platform 12 via the positioning components 22. (Note: Appendix) Figure 1 The “X direction” shown is the front-back direction, and the “Y direction” is the left-right direction.
[0026] As can be seen from the above, the method of using the transfer cart in this embodiment 1 is as follows: S1, firstly, the back plate 21 is raised to a certain height by the lifting component 20 to ensure that the back plate 21 will not interfere with the position adjustment of the support platform 12. It can be understood that the lifting of the back plate 21 refers to the lifting of the back plate 21 in all support components; then, the support platform 12 is adjusted to a suitable tilt state to ensure that the support platform 12 can achieve good cooperation with the back plate 21, thereby ensuring that there will be no collapse when placing the printed circuit board; S2, after completion After the position and orientation of the support platform 12 are adjusted, the back plate 21 is adjusted to a suitable height position (i.e., the height of the back plate 21 relative to the support platform 12 is appropriately adjusted) according to the size of the printed circuit board and via the lifting component 20. The back plate 21 is also manually adjusted to a suitable angle position (i.e., the tilt angle of the back plate 21 relative to the support platform 12 is appropriately adjusted). Then, the back plate 21 is positioned and connected to the support platform 12 via the positioning component 22. At this point, the position and orientation adjustment and positioning of the back plate 21 are completed. It is understood that ① by adjusting the position and orientation of the back plate 21, the back plate 21 can achieve a good cooperation with the support platform 12, that is, the two work together to provide more stable support for the printed circuit board and better resistance to external interference, thereby effectively avoiding collapse or other defects during the placement and transfer of the printed circuit board, ensuring the quality of the printed circuit board, and facilitating its transfer. ② By configuring multiple support components, storage / transport capacity can be increased, and multiple printed circuit boards of different sizes and specifications can be transported in one vehicle. Specifically, by adjusting the backplates 21 on multiple support components to different height positions, multiple printed circuit boards of different types / sizes can be supported. This greatly expands the applicability and practicality of the transfer cart, while also avoiding damage and wear to the printed circuit boards caused by mixing different types / sizes, effectively ensuring the quality of the printed circuit boards. ③ With the transfer cart provided in this embodiment 1, board loading and unloading are very convenient, facilitating production implementation.
[0027] The specific structure of the transfer vehicle described in Embodiment 1 will be described in detail below.
[0028] First, regarding the main body of the vehicle.
[0029] In this embodiment 1, the specific implementation structure for achieving the inclined arrangement of the support platform 12 above the base 10 and the adjustable tilt angle relative to the base 10 is as follows: Please refer to the appendix. Figure 1As shown, the trolley body also includes a support base 13 and a lifting member 14. The support base 13 is fixedly disposed between the rear side of the base 10 and the lower part of the side support frame 11. The lifting member 14 is disposed on the front side of the base 10. The rear side of the support platform 12 is rotatably connected to the support base 13 via a pivot or hinge, etc. The front side of the support platform 12 can move up and down under the drive of the lifting member 14. It can be understood that by driving the support platform 12 to swing up and down through the lifting member 14, the tilt angle of the support platform 12 relative to the base 10 can be adjusted.
[0030] Furthermore, through production and use verification, when the tilt angle of the support platform 12 relative to the base 10 is optimally controlled to be 30° to 40°, the support platform 12 and the back plate 21 provide the best and most stable support effect to the printed circuit board.
[0031] Furthermore, depending on the usage requirements, the lifting component 14 can adopt, but is not limited to, a telescopic rod, a pneumatic lifting column, or an electric lifting column. Specifically: ① Regarding the telescopic rod, it can be a telescopic rod structure with at least two sections that are telescopically connected and positioned, such as, but not limited to, the telescopic rod structure used in mops, the spring-loaded telescopic rod structure used in curtain rods, or the rotary-locking telescopic rod structure used in measuring rods, etc.; the telescopic rod allows for manual adjustment of the tilt angle of the support platform 12. ② Regarding the pneumatic lifting column, it can refer to the pneumatic lifting column structure (or gas spring) used in height-adjustable chairs; the pneumatic lifting column also allows for manual adjustment of the tilt angle of the support platform 12. ③ Regarding the electric lifting column, it uses a built-in motor to drive gears or screws to achieve the lifting of the column, and is a commonly used height adjustment device in the field of mechanical automation; the electric lifting column allows for electric adjustment of the tilt angle of the support platform 12. Understandably, when the lifting member 14 is the electric lifting column, this embodiment also preferably provides a battery on the base 10 to provide power to the electric lifting column.
[0032] Furthermore, to ensure the stability of the support platform 12 during vertical swinging, this embodiment 1 also includes multiple auxiliary support rods 15. Please refer to the appendix for details. Figure 1 As shown, the lower sides of the plurality of auxiliary support rods 15 are respectively hinged to the left and right sides of the base 10, and the upper sides of the plurality of auxiliary support rods 15 are respectively hinged to the left and right sides of the support platform 12. It is understood that as the support platform 12 swings up and down, the plurality of auxiliary support rods 15 also swing in coordination, so as to adapt to the movement of the support platform 12 while also effectively supporting the support platform 12.
[0033] Furthermore, in this embodiment 1, multiple hollow holes are provided on the support platform 12, and a receiving groove is fixedly provided on the base 10 to enable cleaning and collection of dirt on the support platform 12.
[0034] Furthermore, in this embodiment 1, casters 16 with brakes (or casters with locking function) are installed at the four corners of the base 10, so that the vehicle can be moved while the transfer vehicle can be fixed at any time, improving the safety of the transfer vehicle during use. A handle 17 for the operator to hold is fixedly installed on the side support frame 11, so that the user can operate the transfer vehicle.
[0035] Next, regarding the support components.
[0036] In this embodiment 1, after the height adjustment of the back plate 21 is completed, since the back plate 21 is rotatably connected between the two lifting members 20 via a pivot, the user can easily manually adjust the tilt angle of the back plate 21 relative to the support platform 12, so that the bottom surface of the back plate 21 or its extended surface toward the support platform 12 is in contact with the upper surface of the support platform 12. For details, please refer to the appendix. Figure 1 As shown. Understandably, depending on the size of the printed circuit board, after the backplate 21 has been height adjusted, the bottom surface of the backplate 21 facing the support platform 12 is in contact with the upper surface of the support platform 12, or the bottom surface of the backplate 21 is suspended above the upper surface of the support platform 12. In this case, it is still necessary to ensure that the extended surface of the bottom surface of the backplate 21 is in contact with the upper surface of the support platform 12. By optimizing the position and orientation of the backplate 21 as described above, the support effect provided by the backplate 21 and the support platform 12 to the printed circuit board can be further improved.
[0037] In this embodiment 1, the specific implementation structure for positioning and connecting the back plate 21 to the support platform 12 via the positioning component 22 is as follows: Please refer to the appendix. Figure 1 and 2As shown, the support plate 12 is a rectangular parallelepiped, with its front and rear sides along its length. A groove 120 extending along its length is recessed on both sides of the support plate 12. The vertical cross-section of the groove 120 is an inverted U-shape with the opening facing outwards. In each support assembly, the back plate 21 is also a rectangular parallelepiped, with its left and right sides along its length. A sliding groove 210 extending along its width and opening onto the bottom surface of the back plate 21 is recessed on both sides of the back plate 21. The cross-section of the sliding groove 210 is an inverted U-shape with the opening facing outwards. The bottom of 210 is open to allow the lower end of the slide rod 220 to pass freely; each of the positioning components 22 is provided with a slide rod 220, a tension spring 221, a pin 222 with a through hole (understandably, the pin 222 has a through hole) and a bolt. The slide rod 220 is slidably disposed in the slide groove 210. The tension spring 221 is connected between the upper end of the slide rod 220 and the top wall of the slide groove 210 to provide elastic tension to the slide rod 220. The pin 222 is connected to the lower end of the slide rod 220 through a small universal joint 223, and the pin 222 can be inserted into the slot 120. The bolt passes through the slot 120 and the through hole in sequence and is screwed into the nut. Understandably, after the back plate 21 is positioned, the user inserts the pin 222 into the slot 120 and uses the bolt to fix the pin 222 to the slot 120 to achieve positioning of the back plate 21.
[0038] Furthermore, the upper and lower side walls of the slot 120 are respectively provided with elongated through holes extending along their length direction (not shown in the figure, but it does not affect the understanding) for the bolts to pass through and be fixed.
[0039] The size of the bottom opening of the slide 210 is configured to be slightly larger than the size of the slide rod 220, so as to constrain the slide rod 220 to a certain extent.
[0040] Furthermore, in this embodiment 1, a cover may be provided on the outside of the slide 210 to protect and confine the structure placed inside the slide 210. Even further, the cover and the slide 210 may be connected by a snap-fit or hinge connection, and the cover may have a clearance hole or clearance opening to allow the slide rod 220 to move.
[0041] In this Example 1, please continue to refer to the appendix. Figure 1As shown, in each of the support components, the lifting member 20 may adopt a telescopic rod structure that consists of at least two sections that are assembled and can be telescopically positioned and connected. As mentioned above, references may be made to, but are not limited to, the telescopic rod structure used in mops on the market, the spring-clip telescopic rod structure used in curtain rods, or the rotary locking telescopic rod structure used in measuring rods, etc.
[0042] Finally, regarding other structures.
[0043] Please continue to refer to the appendix. Figure 1 As shown, in this embodiment 1, a large backplate 3 is also provided. The upper side of the large backplate 3 is fixedly connected to the upper part of the side support frame 11, and the lower side of the large backplate 3 is fixedly connected to the support base 13. It is understood that the large backplate 3 can also cooperate with the support platform 12 to support the printed circuit board. Furthermore, this application also covers the pivot or hinge connecting the support base 13 and the support platform 12 with soft rubber to avoid damage to the loaded printed circuit board.
[0044] In summary, the transfer cart provided in this application has a simple, novel, and reasonable structure. On the one hand, it can provide more stable support for printed circuit boards and better resist external interference, effectively preventing the printed circuit boards from collapsing during placement and transfer, thus ensuring the quality of the printed circuit boards. On the other hand, it can increase storage / transport capacity while also enabling the transport of multiple printed circuit boards of different sizes and specifications in one vehicle, greatly expanding the application scope of the transfer cart, improving its practicality, and effectively ensuring the quality of the printed circuit boards.
[0045] Many specific details have been set forth in the above description to provide a full understanding of this utility model. However, the above description is only a preferred embodiment of this utility model, and this utility model can be implemented in many other ways different from those described herein. Therefore, this utility model is not limited to the specific embodiments disclosed above. Furthermore, any person skilled in the art can make many possible variations and modifications to the technical solution of this utility model using the methods and techniques disclosed above, or modify it into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of this utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the content of the technical solution of this utility model, shall still fall within the protection scope of the technical solution of this utility model.
Claims
1. A transfer cart for printed circuit boards, characterized in that: The system includes a trolley body and a support assembly. The trolley body has a base (10) that can walk on the ground, a side armrest (11) that is vertically and fixedly set on the rear side of the base (10), and a support platform (12) that is inclined above the base (10). The inclination angle of the support platform (12) relative to the base (10) can be adjusted. The support assembly is provided in multiple units and is arranged at intervals along the front-back direction. Each support assembly has two lifting members (20) that are relatively set on the left and right sides of the base (10), a back plate (21) that is rotatably connected between the two lifting members (20) and placed above the support platform (12), and two positioning components (22) that are respectively set on the left and right sides of the back plate (21). The back plate (21) can move up and down under the drive of the lifting members (20), and the back plate (21) is also positioned and connected to the support platform (12) through the positioning components (22).
2. The transfer cart for printed circuit boards according to claim 1, characterized in that: In each of the support components, the back plate (21) is attached to the upper surface of the support platform (12) on its bottom surface or an extension of the bottom surface.
3. The transfer cart for printed circuit boards according to claim 1, characterized in that: The support plate (12) is a rectangular plate. The two sides of the support plate (12) along its length are the front side and the rear side, respectively. The support plate (12) is provided with grooves (120) extending along its length on the left and right sides. In each of the aforementioned support components, the back plate (21) is a rectangular plate, with its left and right sides on its length direction, respectively. A groove (210) extending along its width and opening onto the bottom surface of the back plate (21) is recessed on each of the left and right sides of the back plate (21). Each of the aforementioned positioning components (22) is provided with a slide rod (220), a tension spring (221), a pin (222) with a insertion hole, and a bolt. 0) Slidingly disposed in the slide groove (210), the tension spring (221) is connected between the upper end of the slide rod (220) and the top wall of the slide groove (210) to provide elastic tension to the slide rod (220), the pin (222) is connected to the lower end of the slide rod (220) through a universal joint, and the pin (222) can be inserted into the slot (120), and the bolt passes through the slot (120) and the insertion hole in sequence and is screwed to the nut.
4. The transfer cart for printed circuit boards according to claim 3, characterized in that: The upper and lower side walls of the slot (120) are respectively provided with long strip-shaped through holes extending along their length direction for the bolts to pass through.
5. The transfer cart for printed circuit boards according to claim 1, characterized in that: In each of the aforementioned support components, the lifting member (20) adopts a telescopic rod structure consisting of at least two sections that are assembled together and can be telescopically positioned and connected.
6. The transfer cart for printed circuit boards according to claim 1, characterized in that: The trolley body is also provided with a support seat (13) fixedly disposed between the rear side of the base (10) and the lower part of the side support frame (11), and a lifting member (14) disposed on the front side of the base (10). The rear side of the support plate (12) is rotatably connected to the support seat (13), and the front side of the support plate (12) can move up and down under the drive of the lifting member (14).
7. The transfer cart for printed circuit boards according to claim 6, characterized in that: The lifting component (14) adopts a telescopic rod structure with at least two sections that are telescopically connected and can be telescopically positioned, or it adopts a pneumatic lifting column or an electric lifting column.
8. The transfer cart for printed circuit boards according to claim 6, characterized in that: The main body of the trolley is also provided with a plurality of auxiliary support rods (15), the lower sides of the plurality of auxiliary support rods (15) are respectively hinged to the left and right sides of the base (10), and the upper sides of the plurality of auxiliary support rods (15) are respectively hinged to the left and right sides of the support plate (12).
9. The transfer cart for printed circuit boards according to claim 1, characterized in that: The base (10) is equipped with casters (16) with brakes at the four corners; the side support frame (11) is fixedly provided with handles (17) for the operator to hold.
10. The transfer cart for printed circuit boards according to claim 6, characterized in that: It is also provided with a large back plate (3), the upper side of which is fixedly connected to the upper part of the side support frame (11), and the lower side of which is fixedly connected to the support base (13).