Pressing plate and laminating equipment

Abstract

The utility model discloses a pressing plate and laminating equipment, the pressing plate comprises a pressing plate main body, the top of the pressing plate main body is provided with a pressing surface, an accommodating cavity is arranged in the pressing plate main body, and the accommodating cavity forms an opening in the pressing surface; the supporting piece is provided with a supporting surface, and at least part of the supporting piece is contained in the containing cavity; the elastic piece is contained in the containing cavity and connected with the supporting piece, when the supporting piece is located at the starting end of the preset path, the supporting face is farther away from the containing cavity than the pressing face, and when the supporting piece is located at the tail end of the preset path, the supporting face is flush with the pressing face or contained in the containing cavity. According to the utility model, the supporting member is arranged on the pressing plate main body, and the PCB bearing disc slides on the supporting member until the PCB bearing disc reaches the position of the supporting member, so that sliding friction between the PCB bearing disc and the pressing plate main body is avoided, and sliding wear caused by direct contact between the PCB bearing disc and the pressing plate is reduced; and therefore, the surface flatness of the PCB bearing disc is prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of presses, in particular to a pressing plate and a lamination device. Background Art

[0002] Hot presses / cold presses are important equipment in the PCB lamination production process. The flatness of the pressing plate of a hot press / cold press directly affects the quality of the finished PCB circuit board. During the feeding and discharging process of the press, the mutual sliding friction between the pressing plate and the PCB carrier plate not only affects the service life of the pressing plate and the PCB carrier plate but also affects the surface flatness of the pressing plate and the carrier plate, and in severe cases, it will cause batch defects of products. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a pressing plate and a lamination device to solve the technical problem that the mutual sliding friction between the pressing plate and the PCB carrier plate during the feeding and discharging process of the press will affect the service life and surface flatness of the pressing plate and the PCB carrier plate.

[0004] In a first aspect, the utility model provides a pressing plate, comprising:

[0005] A pressing plate main body, the top of the pressing plate main body has a lamination surface, and a receiving cavity is provided in the pressing plate main body, and the receiving cavity forms an opening on the lamination surface;

[0006] A support member, the support member has a support surface, and at least part of the support member is received in the receiving cavity;

[0007] An elastic member, received in the receiving cavity, the elastic member is connected to the support member so that the support member can elastically reciprocate along a preset path. When the support member is at the starting end of the preset path, the support surface is farther from the receiving cavity than the lamination surface. When the support member is at the end of the preset path, the support surface is flush with the lamination surface or received in the receiving cavity.

[0008] For a pressing plate as described above, preferably, the support surface includes a main support surface and a guiding surface, and the main support surface is parallel to the extending direction of the lamination surface;

[0009] The extending direction of the guiding surface intersects the extending direction of the lamination surface. The guiding surface has a first end and a second end. The first end of the guiding surface is connected to the end of the main support surface. When the support member is at the starting end of the preset path, the second end of the guiding surface is closer to the lamination surface than the first end of the guiding surface.

[0010] For a pressing plate as described above, preferably, when the support member is at the starting end of the preset path, the second end of the guiding surface is received in the receiving cavity.

[0011] A pressing plate as described above, wherein preferably, the elastic member includes an elastic sheet, one end of the elastic sheet abuts against the bottom wall surface of the accommodating cavity, and the other end of the elastic sheet abuts against the supporting member.

[0012] A pressing plate as described above, wherein preferably, the elastic member includes a first abutting portion, a connecting portion, and a second abutting portion. The first abutting portion abuts against the bottom wall surface of the accommodating cavity, the second abutting portion abuts against the supporting member. There are two second abutting portions, and the two second abutting portions are located on opposite sides of the first abutting portion. The connecting portion connects the first abutting portion and the second abutting portion respectively, and the extending direction of the connecting portion intersects the extending directions of the first abutting portion and the second abutting portion.

[0013] A pressing plate as described above, wherein preferably, a counterbore is provided on the supporting member, the counterbore corresponds to the elastic sheet, the elastic sheet is fixed in the accommodating cavity by a bolt member, and the head end of the bolt member is received in the counterbore.

[0014] A pressing plate as described above, wherein preferably, the supporting member extends in a first direction, and there are a plurality of elastic members, and the plurality of elastic members are arranged at equal intervals in sequence along the first direction.

[0015] A pressing plate as described above, wherein preferably, the elastic member closer to the guiding surface provides a greater elastic supporting force to the supporting member than the elastic member farther from the guiding surface.

[0016] A pressing plate as described above, wherein preferably, there are a plurality of supporting members, and the plurality of supporting members are arranged at intervals in the direction orthogonal to the first direction.

[0017] In a second aspect, the present invention provides a laminating device, including a driving device and a plurality of the aforementioned pressing plates. The plurality of pressing plates are arranged at intervals in the vertical direction, and the driving device is used to drive the plurality of pressing plates to approach or separate from each other.

[0018] Compared with the prior art, by providing a supporting member on the pressing plate main body in the present invention, the PCB carrier first slides on the pressing plate main body until it reaches the position of the supporting member, and then the PCB carrier will slide on the supporting member and no longer generate sliding friction with the pressing plate main body, reducing the sliding wear caused by the direct contact between the PCB carrier and the pressing plate, and thus ensuring that the surface flatness of the PCB carrier is not damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural view of the pressing plate provided by the embodiment of the present invention;

[0020] Figure 2 is a side view of the pressing plate provided by the embodiment of the present utility model;

[0021] Figure 3 is Figure 1 a sectional view taken along line A-A in

[0022] Figure 4 is Figure 3 a partially enlarged view at position B of

[0023] Figure 5 is a schematic diagram of the PCB carrier plate provided by the embodiment of the present utility model installed on the pressing plate;

[0024] Figure 6 is a schematic diagram of the working state of the laminating device provided by the embodiment of the present utility model.

[0025] Description of reference numerals:

[0026] 10 - pressing plate main body, 11 - pressing surface, 12 - accommodating cavity, 13 - opening;

[0027] 20 - support member, 21 - support surface, 211 - main support surface, 212 - guiding surface, 22 - counterbore hole, 23 - bolt member;

[0028] 30 - elastic member, 31 - elastic sheet, 311 - first abutting portion, 312 - connecting portion, 313 - second abutting portion;

[0029] 40 - laminating device, 41 - press frame, 42 - driving device, 43 - movable platform;

[0030] 50 - PCB carrier plate;

[0031] 60 - material to be pressed;

[0032] 100 - pressing plate;

[0033] D1 - first direction, D2 - second direction. Detailed implementation manners

[0034] The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model, and should not be construed as limiting the present utility model.

[0035] In the embodiments provided by the present utility model, the pressing plate 100 can be a hot pressing plate or a cold pressing plate, and channels for the circulation of heating oil or cooling water are processed inside it. It is mainly used to support the PCB carrier tray 50 and the material to be pressed 60 and form the PCB carrier tray 50 and the material to be pressed 60 at a specific temperature and pressure. Before the PCB carrier tray 50 and the material to be pressed 60 are pressed and formed, they need to be first placed on the pressing plate 100, and then subsequent operations are carried out.

[0036] Generally, the PCB carrier tray 50 is installed on the pressing plate 100 by sliding on the surface of the pressing plate 100. During the feeding and discharging process of the lamination equipment 40, the mutual sliding friction between the pressing plate 100 and the PCB carrier tray 50 not only affects the service life of the pressing plate 100 and the PCB carrier tray 50, but also affects the surface flatness of the pressing plate 100 and the PCB carrier tray 50. In severe cases, it will cause batch defects of products.

[0037] In order to reduce the sliding friction generated between the surface of the PCB carrier tray 50 and the pressing plate 100 during the installation process, the present utility model provides a pressing plate 100 for carrying the PCB carrier tray 50. The PCB carrier tray 50 can be slidably installed on the pressing plate 100 along the first direction D1, and the first direction D1 is the moving direction of the PCB carrier tray 50 sliding onto the pressing plate 100. Refer to Figures 1 to 5 As shown, the pressing plate 100 includes a pressing plate main body 10, a support member 20 and an elastic member 30, wherein:

[0038] The top of the pressing plate main body 10 has a pressing surface 11, and the pressing surface 11 is the surface facing the PCB carrier tray 50. An accommodation cavity 12 is provided inside the pressing plate main body 10. The accommodation cavity 12 forms an opening 13 on the pressing surface 11. The accommodation cavity 12 is a cavity formed by recessing downward from the pressing surface 11, and the opening 13 is an opening formed by the accommodation cavity 12 on the pressing surface 11.

[0039] The support member 20 has a support surface 21. At least part of the support member 20 is received in the accommodation cavity 12 through the opening 13. When the PCB carrier tray 50 is slidably installed on the pressing plate 100, the PCB carrier tray 50 first slides a certain distance on the pressing surface 11. After reaching the support member 20, the PCB carrier tray 50 starts to slide on the support surface 21, and the PCB carrier tray 50 will not contact the pressing surface 11 of the pressing plate main body 10, reducing the sliding distance of the PCB carrier tray 50 on the pressing surface of the pressing plate main body 10. On the one hand, it avoids the sliding wear of the pressing plate 100, and on the other hand, it greatly reduces the wear of the PCB carrier tray 50, thereby improving the flatness of the pressing plate 100 and the PCB carrier tray 50 and improving the quality of the flatness of the product pressing.

[0040] The elastic member 30 is received in the accommodation cavity 12. The elastic member 30 is connected to the support member 20. The elastic member 30 is used to provide an elastic force to the support member 20 so that the support member 20 can elastically move back and forth along a preset path. Preferably, the preset path is a path of moving along the second direction D2, and the second direction D2 is the direction of gravity. The support member 20 can elastically move along the direction of gravity in the accommodation cavity 12. When the support member 20 is located at the starting end of the preset path, the pressing surface 11 is located between the supporting surface 21 and the accommodation cavity 12. The supporting surface 21 is located outside the accommodation cavity 12 and above the pressing surface 11.

[0041] During the installation of the PCB carrier 50 on the pressing plate 100, when the PCB carrier 50 reaches the support member 20, the support member 20 moves into the accommodation cavity 12 along the preset path. The elastic member 30 undergoes elastic deformation during the downward movement of the support member 20 to accumulate elastic force, and applies the elastic force to the support member 20 to provide support for the support member 20, so as to prevent the support member 20 from being pressed into the accommodation cavity 12 when the PCB carrier 50 enters and exits the lamination device 40 and coming into contact with the pressing surface 11 of the pressing plate 100, reducing the direct contact friction between the PCB carrier 50 and the pressing surface 11 of the pressing plate 100 during the sliding process, thereby protecting the pressing surface 11 of the pressing plate 100 from sliding wear and extending the service life of the pressing plate 100.

[0042] When the lamination device 40 is working, after the support member 20 receives a large pressure, it overcomes the elastic force provided by the elastic member 30, so that the support member 20 continues to move along the preset path. When the support member 20 moves to the end of the preset path, the supporting surface 21 is flush with the pressing surface 11 or the support member 20 is completely received in the accommodation cavity 12. At this time, the surface of the PCB carrier 50 is attached to the pressing surface 11.

[0043] After the lamination device 40 completes the operation, the PCB carrier 50 exits from the pressing plate 100, and the elastic force of the elastic member 30 is released, so that the support member 20 returns to its original position.

[0044] In order to guide the PCB carrier 50 to smoothly slide onto the support member 20, in the embodiments provided by the present application, referring to Figure 1 and Figure 4As shown, the support surface 21 includes a main support surface 211 and a guiding surface 212. The main support surface 211 is parallel to the extending direction of the pressing surface 11. The guiding surface 212 is an inclined surface, and the extending direction of the guiding surface 212 intersects with the extending direction of the pressing surface 11. The guiding surface 212 has a first end and a second end. The first end of the guiding surface 212 is connected to the end of the main support surface 211, so that the main support surface 211 and the guiding surface 212 together form the support surface 21. When the support member 20 is located at the starting end of the preset path, the second end of the guiding surface 212 is closer to the pressing surface 11 than the first end of the guiding surface 212. During the movement of the PCB carrier 50, it first contacts the guiding surface 212, applying a downward force to the pressing plate 100, causing the pressing plate 100 to move downward, and the elastic member 30 stores elastic force. The PCB carrier 50 can move along the guidance of the guiding surface 212 to the support surface 21, avoiding hard collisions between the end of the PCB carrier 50 and the support member 20, which is beneficial to protecting the PCB carrier 50 and avoiding bump damage.

[0045] In a feasible implementation manner, when the support member 20 is located at the starting end of the preset path, the second end of the guiding surface 212 is received in the receiving cavity 12, that is, the second end of the guiding surface 212 is lower than the pressing surface 11, so that when the PCB carrier 50 slides to start contacting the support member 20, the support member 20 can contact the guiding surface 212, which can avoid the collision between the PCB carrier 50 and the guiding surface 212.

[0046] In the embodiments provided by the present application, referring to Figure 3 and Figure 4 As shown, the elastic member 30 includes an elastic sheet 31. One end of the elastic sheet 31 abuts against the bottom wall surface of the receiving cavity 12, and the other end of the elastic sheet 31 abuts against the support member 20. During the process of the PCB carrier 50 sliding along the support member 20, the support member 20 moves downward into the receiving cavity 12 under the action of the gravity of the PCB carrier 50. During the downward movement, the elastic sheet 31 deforms and stores elastic force, and acts on the support member 20, so that the support member 20 can stably support the PCB carrier 50, and the PCB carrier 50 can stably slide on the support member 20.

[0047] In a feasible implementation manner, referring to Figure 4As shown in the figure, the elastic sheet 31 includes a first abutting portion 311, a connecting portion 312, and a second abutting portion 313. The first abutting portion 311 abuts against the bottom wall surface of the accommodating cavity 12, and the second abutting portion 313 abuts against the support member 20. There are two first abutting portions 311, and the two first abutting portions 311 are located on opposite sides of the second abutting portion 313. There are two connecting portions 312. One ends of the two connecting portions 312 are respectively connected to the two ends of the second abutting portion 313, and the other ends of the two connecting portions 312 are respectively connected to one first abutting portion 311. Both of the two connecting portions 312 are connected to the first abutting portion 311 and the second abutting portion 313 in an inclined manner. When the support member 20 moves along a preset path, the connecting portion 312 undergoes elastic deformation to accumulate elastic force, and the elastic force is applied to the support member 20 through the second abutting portion 313, so that the support member 20 can move stably.

[0048] In other embodiments, the elastic member 30 may adopt other structures or components that can provide elastic support force for the support member 20, which are not limited herein.

[0049] In the embodiments provided by the present application, a counterbore 22 is provided on the support member 20. The counterbore 22 is provided corresponding to the elastic sheet 31. The elastic sheet 31 is fixed in the accommodating cavity 12 by a bolt member 23, and the head end of the bolt member 23 is received in the counterbore 22. Refer to Figure 4 As shown in the figure, the elastic sheet 31 is fixed in the accommodating cavity 12 by the bolt member 23, so that the elastic sheet 31 can only undergo elastic deformation on the preset path, and thus can provide the maximum elastic force support for the support member 20, enabling the support member 20 to move stably along the preset path. Before the PCB carrier 50 is installed on the pressing plate 100, the head end of the bolt member 23 abuts against the bottom wall of the counterbore 22. During the downward movement of the support member 20, the head end of the bolt member 23 gradually moves away from the bottom wall of the counterbore 22, and the head end of the bolt member 23 gradually approaches the pressing surface 11. When the PCB carrier 50 is completely located on the pressing plate main body 10, in order to make the bottom surface of the PCB carrier 50 fit with the pressing surface 11, the head end of the bolt member 23 needs to be lower than the pressing surface 11. Otherwise, the head end of the bolt member 23 will lift the PCB carrier 50, thereby affecting the surface flatness of the PCB carrier 50. Therefore, the head end of the bolt member 23 should always be located in the counterbore 22 to avoid the head end of the bolt from lifting the PCB carrier 50. The number of the counterbores 22 can be calculated and is not limited herein.

[0050] Refer to Figure 1 And Figure 3As shown, the support member 20 extends along the first direction D1. The elastic members 30 include a plurality of them, and the plurality of elastic members 30 are equally spaced in sequence along the first direction D1, so as to be able to provide uniform elastic force support for the support member 20. As the PCB carrier 50 slides on the support member 20, the plurality of elastic members 30 sequentially provide elastic support force for the support member 20 until the PCB carrier 50 moves onto the pressing plate main body 10.

[0051] In the embodiments provided by the present application, whether it is during the process of the PCB carrier 50 sliding onto the support member 20 or when the PCB carrier 50 is removed from the support member 20, the elastic member 30 closest to the guiding surface 212 always needs to provide the maximum elastic support force to support the support member. Along the extension direction of the support member 20, the elastic support force provided by the elastic member 30 close to the guiding surface 212 to the support member 20 needs to be greater than the elastic support force provided by the elastic member 30 far from the guiding surface 212 to the support member 20. Such a setting can enable the support member 20 to always support the PCB carrier 50 after the PCB carrier 50 slides to contact the support member 20.

[0052] In a feasible implementation manner, referring to Figure 1 and Figure 2 As shown, there are a plurality of support members 20, and the plurality of support members 20 are spaced at intervals in the orthogonal direction of the first direction D1. The plurality of support members 20 can improve the stability of the support effect on the PCB carrier 50, and jointly share the pressure of the PCB carrier 50. For the weights of PCB carriers 50 of different specifications and the materials 60 to be pressed, the corresponding number of support members 20 can be selected so that the support members 20 can move stably.

[0053] In a second aspect, the present utility model provides a lamination device 40. Referring to Figure 6 As shown, it includes a driving device 42 and the aforementioned pressing plate 100. A plurality of pressing plates 100 are spaced at intervals in the vertical direction. The driving device 42 is used to drive the plurality of pressing plates 100 to approach or move away from each other. Further, the lamination device 40 further includes a press frame 41 and a movable platform 43. The driving device 42 is arranged at the bottom of the press frame 41. The driving device 42 is preferably an oil cylinder. The movable platform 43 is fixed to the output end of the driving device 42. The driving device can drive the movable platform 43 to lift and lower. The pressing plates 100 are fixed on the movable platform 43, and the plurality of pressing plates 100 are equally spaced in the inner cavity of the press frame 41.

[0054] The process of pressing the PCB carrier 50 and the material 60 to be pressed is as follows:

[0055] The lamination device 40 receives the externally conveyed PCB carrier tray 50 and the material to be laminated 60. The PCB carrier tray 50 and the material to be laminated 60 are carried on the pressing plate 100. The driving device 42 is activated to drive the movable platform 43 to drive the PCB carrier tray 50 and the material to be laminated 60 to move upward in sequence from bottom to top until the hydraulic cylinder reaches the system preset pressure. After the lamination process is completed, the oil cylinder 42 retracts, and the laminated material is taken out from the inside of the lamination device 40.

[0056] The structure, features and effects of the present utility model have been described in detail based on the embodiments shown in the drawings. The above are only the preferred embodiments of the present utility model, but the present utility model is not limited to the scope of implementation shown in the drawings. Any changes made according to the concept of the present utility model, or equivalent embodiments modified into equivalent changes, which still do not exceed the spirit covered by the description and the drawings, shall be within the protection scope of the present utility model.

Claims

1. A pressing plate, characterized in that: include: A pressing plate body, wherein the top of the pressing plate body has a pressing surface, and a receiving cavity is provided inside the pressing plate body, and the receiving cavity forms an opening at the pressing surface; A support member, the support member having a support surface, the support member being at least partially received in the accommodating cavity; An elastic member is accommodated in the accommodating cavity, and the elastic member is connected to the support member so that the support member can elastically reciprocate along a preset path. When the support member is located at the starting end of the preset path, the support surface is farther away from the accommodating cavity than the pressing surface. When the support member is located at the end of the preset path, the support surface is flush with the pressing surface, or is accommodated in the accommodating cavity.

2. The pressing plate according to claim 1, characterized in that The support surface includes a main support surface and a guide surface, and the main support surface is parallel to the extension direction of the pressing surface; The extension direction of the guide surface intersects with the extension direction of the pressing surface. The guide surface has a first end and a second end. The first end of the guide surface is connected to the end of the main support surface. When the support member is located at the starting end of the preset path, the second end of the guide surface is closer to the pressing surface than the first end of the guide surface.

3. The pressing plate according to claim 2, characterized in that: When the support member is located at the starting end of the preset path, the second end of the guide surface is received in the accommodating cavity.

4. The pressing plate according to claim 2, characterized in that: The elastic member comprises an elastic sheet, one end of the elastic sheet abuts against the bottom wall surface of the accommodating cavity, and the other end of the elastic sheet abuts against the supporting member.

5. The pressing plate according to claim 4, characterized in that The elastic member includes a first abutting portion, a connecting portion and a second abutting portion, the first abutting portion abuts against the bottom wall surface of the accommodating cavity, the second abutting portion abuts against the supporting member, two first abutting portions are provided, and the two first abutting portions are located on opposite sides of the second abutting portion, and two connecting portions are provided, and the two connecting portions respectively connect the two first abutting portions with the second abutting portions, and the extending direction of the connecting portion intersects with the extending direction of the first abutting portion and the second abutting portion.

6. The pressing plate according to claim 4, characterized in that The support member is provided with a countersunk hole, the countersunk hole is arranged corresponding to the elastic sheet, the elastic sheet is fixed in the accommodating cavity by a bolt member, and the head end of the bolt member is accommodated in the countersunk hole.

7. The pressing plate according to claim 4, characterized in that The support member extends along a first direction, and a plurality of the elastic members are provided, and the plurality of the elastic members are distributed in sequence and at equal intervals along the first direction.

8. The pressing plate according to claim 7, characterized in that The elastic supporting force provided to the support member by the elastic member close to the guide surface is greater than the elastic supporting force provided to the support member by the elastic member far from the guide surface.

9. The pressing plate according to claim 7, characterized in that: There are a plurality of support members, and the plurality of support members are spaced apart along a direction orthogonal to the first direction.

10. A laminating device, characterized in that: It comprises a driving device and a plurality of pressing plates as described in any one of claims 1 to 9, wherein the plurality of pressing plates are arranged at intervals in the vertical direction, and the driving device is used for driving the plurality of pressing plates to move closer to or away from each other.

Images