Screen printing plate clamping device

Abstract

The invention discloses a printing screen clamping device which comprises a plurality of clamping assemblies, and each clamping assembly comprises a first base plate, a second base plate, a first clamp, a second clamp and a first positioning piece. The first base plate and the second base plate are oppositely arranged and can move relatively, the first clamp is arranged on the first base plate, the second clamp is arranged on the second base plate, and the first clamp and the second clamp are used for abutting against the circumferential outer surface of a printing screen from the two oppositely-arranged sides. The first positioning piece is arranged on the first base plate and located between the first clamp and the second clamp. The first positioning piece is used for abutting against the circumferential outer surface of the printing screen. Wherein the first direction is perpendicular to the second direction, and the first direction and the second direction are both perpendicular to the exposure direction of the printing screen. The device is provided with the multiple clamping assemblies, multiple printing screens can be clamped and fixed at the same time, exposure can be conveniently conducted on the multiple printing screens at the same time, and the production efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of screen printing, and in particular relates to a printing screen clamping device. Background Art

[0002] Screen printing involves using a silk screen as a base, creating a screen printing plate with an image or text through a photosensitive platemaking process. Screen printing consists of five key elements: the printing screen, squeegee, ink, printing table, and substrate. Printing is based on the principle that the mesh holes in the image area of ​​the screen printing plate are permeable to ink, while the mesh holes in the non-image area are impermeable to ink.

[0003] Printing screens generally need to be exposed using photochemical methods. During exposure, the sizes and specifications of printing screens are diverse, and the patterns exposed on the printing screens are also diverse. This results in frequent replacement of printing screens and screen fixtures during conventional exposure, and single exposure can only be performed on a single printing screen, seriously affecting production efficiency.

[0004] The information disclosed in this background technology section is only intended to enhance understanding of the overall background of the invention and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the Invention

[0005] The object of the present invention is to provide a printing screen clamping device, which is used to solve the problem that multiple printing screens cannot be exposed at the same time.

[0006] In order to achieve the above-mentioned purpose, a specific embodiment of the present invention provides a printing screen clamping device, which includes a plurality of clamping components arranged along a first direction and / or a second direction, and the clamping components include a first substrate, a second substrate, a first clamp, a second clamp and a first positioning member. The first substrate and the second substrate are arranged relative to each other and can move relative to each other, the first clamp is arranged on the first substrate, and the second clamp is arranged on the second substrate, and the first clamp and the second clamp are used to support the circumferential outer surface of the printing screen from two oppositely arranged sides. The first positioning member is arranged on the first substrate and is located between the first clamp and the second clamp, and the first positioning member is used to support the circumferential outer surface of the printing screen. The first direction is perpendicular to the second direction, and the first direction and the second direction are both perpendicular to the exposure direction of the printing screen.

[0007] In one or more embodiments of the present invention, the first clamp is disposed on the first substrate along the exposure direction and is surrounded by the first substrate to form a first receiving groove for receiving the printing screen.

[0008] In one or more embodiments of the present invention, the second clamp is disposed on the second substrate along the exposure direction and is surrounded by the second substrate to form a second receiving groove for receiving the printing screen.

[0009] In one or more embodiments of the present invention, the first clamp includes a first abutting surface facing the second clamp and a second abutting surface facing the first substrate.

[0010] In one or more embodiments of the present invention, the second clamp includes a third abutting surface facing the first clamp and a fourth abutting surface facing the second substrate.

[0011] In one or more embodiments of the present invention, the printing screen clamping device further includes a first driving member for driving the printing screen to move toward the second abutting surface.

[0012] In one or more embodiments of the present invention, the printing screen clamping device further includes a second driving member for driving the printing screen to move toward the fourth abutting surface.

[0013] In one or more embodiments of the present invention, the printing screen clamping device further includes a third driving member for driving the first clamp to move along the exposure direction;

[0014] In one or more embodiments of the present invention, the printing screen clamping device further includes a fourth driving member for driving the second clamp to move along the exposure direction.

[0015] In one or more embodiments of the present invention, the printing screen clamping device includes a second positioning member provided on the first substrate or the second substrate, the second positioning member is arranged opposite to the first positioning member and is located between the first clamp and the second clamp, and when the printing screen is clamped between the first clamp and the second clamp, at least one of the first positioning member and the second positioning member abuts against the circumferential outer surface of the printing screen.

[0016] In one or more embodiments of the present invention, the printing screen clamping device includes a plurality of first clamps disposed on a first substrate.

[0017] In one or more embodiments of the present invention, the printing screen clamping device includes a plurality of second clamps disposed on the second substrate.

[0018] In one or more embodiments of the present invention, the printing screen clamping device further includes a guide rail, a first moving member slidably connected to the guide rail and connected to the second substrate, and a driving mechanism for driving the first moving member to move along the guide rail.

[0019] In one or more embodiments of the present invention, the driving mechanism includes a second moving member connected to the second substrate, a lead screw nut mounted on the second moving member, a lead screw passing through the lead screw nut, and a motor driving the lead screw to rotate.

[0020] In one or more embodiments of the present invention, the guide rail is provided with two limiting members located on both sides of the first moving member and used to limit the moving range of the first moving member.

[0021] Compared with the prior art, the present invention has multiple clamping components, which can clamp and fix multiple printing screens at the same time, making it easy to expose multiple printing screens at the same time and improving production efficiency.

[0022] Furthermore, the first clamp and the second clamp of the present invention can move relatively to each other and clamp and fix printing screens of different sizes.

[0023] In addition, in a direction perpendicular to the arrangement direction of the first clamp and the second clamp, the first positioning member can position printing screens of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments described in the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0025] Figure 1 2. It is a three-dimensional structural diagram of the printing screen clamping device in the first embodiment of the present invention;

[0026] Figure 2 This is a front structural diagram of the printing screen clamping device in Example 1 of the present invention;

[0027] Figure 3 This is a side structural diagram of the printing screen clamping device in Example 1 of the present invention;

[0028] Figure 4 1 is a side structural diagram of the first clamp in Example 1 of the present invention;

[0029] Figure 5 1 is a side structural diagram of the second clamp in Example 1 of the present invention;

[0030] Figure 6 This is a side structural diagram of the first substrate in Example 1 of the present invention.

[0031] Explanation of main figure marks: 1. First substrate, 2. Second substrate, 3. First clamp, 31. First plate body, 32. Second plate body, 301. First holding surface, 302. Second holding surface, 4. Second clamp, 41. Third plate body, 42. Fourth plate body, 401. Third holding surface, 402. Fourth holding surface, 5. First positioning member, 501. First positioning surface, 6. Second positioning member, 601. Second positioning surface, 7. First driving member, 8. Second driving member, 9. First moving member, 10. Guide rail, 11. Second moving member, 12. Screw rod, 13. Motor, 14. Limiting member, 15. Printing screen, 16. Exposure direction. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be understood that the terms "top", "bottom", "up", "down", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] Secondly, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more of the specified features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0035] In addition, in the description of the present invention, the term "first direction" refers to the vertical direction or the horizontal direction. Figure 2 The term "second direction" refers to the horizontal direction. Figure 2 Furthermore, the “first direction” is perpendicular to the “second direction”, and both the “first direction” and the “second direction” are perpendicular to the exposure direction 16 of the printing screen 15 .

[0036] Example 1

[0037] Reference Figures 1 to 6As shown, this embodiment provides a printing screen clamping device, which includes multiple clamping assemblies arranged along a first direction, where the first direction is the vertical direction. The clamping assemblies include a first substrate 1, a second substrate 2, a first clamp 3, a second clamp 4, a first positioning member 5, a second positioning member 6, and a drive unit.

[0038] Specifically, in this embodiment, the first substrate 1 and the second substrate 2 are arranged relative to each other along a first direction, the first clamp 3 is fixedly mounted on the first substrate 1, and the second clamp 4 is fixedly mounted on the second substrate 2. The first positioning member 5 and the second positioning member 6 are arranged relative to each other along a second direction, and the first positioning member 5 and the second positioning member 6 are both fixedly mounted on the first substrate 1, the first positioning member 5 is located between the first clamp 3 and the second clamp 4, and the second positioning member 6 is also located between the first clamp 3 and the second clamp 4. The driving unit is connected to the second substrate 2, and the driving unit can drive the second substrate 2 away from and closer to the first substrate 1, thereby changing the distance between the first clamp 3 and the second clamp 4, so that the first clamp 3 and the second clamp 4 can clamp and fix the printing screen 15 together.

[0039] Reference Figure 4 As shown, the first clamp 3 in this embodiment is constructed as an L-shaped structure or an approximately L-shaped structure. The first clamp 3 is arranged on the first substrate 1 along the exposure direction 16. The first clamp 3 and the first substrate 1 are arranged to form a first accommodating groove for accommodating the printing screen 15.

[0040] Specifically, the first fixture 3 includes a horizontally extending first plate 31 and a vertically upwardly extending second plate 32. The top surface of the first plate 31 forms a first abutting surface 301 facing the second substrate 2 and the second fixture 4. The first abutting surface 301 is used to abut the printing screen 15 from its bottom to its circumferential outer surface, that is, to support the printing screen 15 from its bottom and restrict downward movement of the printing screen 15. The second plate 32 forms a second abutting surface 302 on the side closest to the first substrate 1. The second abutting surface 302 is used to abut the printing screen 15 from the exposure direction 16 and restrict movement of the printing screen 15 along the exposure direction 16.

[0041] The first abutting surface 301 and the second abutting surface 302 can be configured as a flat surface or a curved surface convex toward the printing screen 15 .

[0042] Reference Figure 1 and Figure 2 As shown, in this embodiment, a plurality of first clamps 3 are provided, and the plurality of first clamps 3 on the first substrate 1 are distributed at intervals.

[0043] Furthermore, the printing screen clamping device in this embodiment also includes a first driving member 7 that cooperates with the first clamp 3. The first driving member 7 is installed on the first substrate 1. The first driving member 7 is used to drive the printing screen 15 to move toward the second abutting surface 302, so that the printing screen 15 is close to the second abutting surface 302.

[0044] The first driving member 7 includes but is not limited to a pneumatic cylinder, a hydraulic cylinder and an electric cylinder.

[0045] Similarly, refer to Figure 5 As shown, the second clamp 4 in this embodiment has a similar structure to the first clamp 3. The second clamp 4 is arranged on the second substrate 2 along the exposure direction 16. The second clamp 4 is also constructed as an L-shaped structure or an approximately L-shaped structure. The second clamp 4 and the second substrate 2 are arranged to form a second accommodating groove for accommodating the printing screen 15.

[0046] Specifically, the second fixture 4 includes a horizontally extending third plate 41 and a vertically extending fourth plate 42. The bottom surface of the third plate 41 forms a third abutting surface 401 facing the first substrate 1 and the first fixture 3. The third abutting surface 401 is used to abut the top of the printing screen 15 against the circumferential outer surface of the printing screen 15, restricting upward movement of the printing screen 15. The side of the fourth plate 42 proximal to the second substrate 2 forms a fourth abutting surface 402. The fourth abutting surface 402 is used to abut the printing screen 15 in the exposure direction 16, restricting movement of the printing screen 15 along the exposure direction 16.

[0047] The third abutting surface 401 and the fourth abutting surface 402 can be configured as flat surfaces or curved surfaces convex toward the printing screen 15 .

[0048] Reference Figure 1 and Figure 2 As shown, in this embodiment, a plurality of second clamps 4 are provided, and the plurality of second clamps 4 on the second substrate 2 are distributed at intervals.

[0049] Furthermore, the printing screen clamping device in this embodiment also includes a second driving member 8 that cooperates with the second clamp 4. The second driving member 8 is installed on the second substrate 2. The second driving member 8 is used to drive the printing screen 15 to move toward the fourth abutting surface 402, so that the printing screen 15 is close to the fourth abutting surface 402.

[0050] The second driving member 8 includes but is not limited to a pneumatic cylinder, a hydraulic cylinder and an electric cylinder.

[0051] Reference Figure 1 、 Figure 2 and Figure 6 As shown, the first positioning member 5 includes a first positioning surface 501 facing the second positioning member 6 , and the first positioning surface 501 is used to abut against the circumferential outer surface of the printing screen 15 .

[0052] Likewise, the second positioning member 6 includes a second positioning surface 601 facing the first positioning member 5 , and the second positioning surface 601 is used to abut against the circumferential outer surface of the printing screen 15 .

[0053] The first positioning surface 501 and the second positioning surface 601 can be configured as a flat surface or a curved surface convex toward the printing screen 15 .

[0054] In actual application, the operator can place the printing screen 15 on the first clamp 3, and then move the printing screen 15 horizontally so that the side surface of one side of the printing screen 15 abuts against the first positioning surface 501 or the second positioning surface 601, and use the first positioning surface 501 or the second positioning surface 601 to position the position of the printing screen in the second direction, and then lower the second clamp 4, and use the first clamp 3 and the second clamp 4 to clamp the printing screen 15.

[0055] Alternatively, when the size of the printing screen 15 in the second direction is equal to the distance from the first positioning surface 501 to the second positioning surface 601 in the second direction, the printing screen 15 can be in close contact with the first positioning surface 501 and the second positioning surface 601 at the same time.

[0056] Reference Figure 1 and Figure 2 As shown, the driving unit includes a guide rail 10 , a first moving member 9 slidably connected to the guide rail 10 and connected to the second base plate 2 , and a driving mechanism for driving the first moving member 9 to move along the guide rail 10 .

[0057] Furthermore, the driving mechanism includes a second moving member 11 connected to the second base plate 2, a screw nut mounted on the second moving member 11, a screw 12 passing through the screw nut, and a motor 13 for driving the screw 12. Two guide rails 10 are provided, and the two guide rails 10 are located on both sides of the screw 12.

[0058] Furthermore, two limiting members 14 are provided on the guide rail 10 and are located on both sides of the first movable member 9 . The two limiting members 14 are used to limit the moving range of the first movable member 9 and confine the first movable member 9 between the two limiting members 14 .

[0059] Reference Figure 1 and Figure 2 As shown, the clamping assembly includes a first clamping assembly and a second clamping assembly arranged along a first direction, the second clamping assembly is located on the top of the first clamping assembly, the first clamping assembly and the second clamping assembly share the same guide rail 10, wherein the first substrate 1 of the second clamping assembly is installed on the guide rail 10, and a limiting structure is provided on the guide rail 10 to limit the movement of the first substrate 1 along the guide rail 10.

[0060] Example 2

[0061] This embodiment provides a printing screen clamping device, which includes a plurality of clamping components arranged along a first direction, where the first direction is a vertical direction.

[0062] The difference between the clamping assembly in this embodiment and that in the first embodiment is that the first driving member 7 and the second driving member 8 are not provided in this embodiment, but a third driving member (not shown in the figure) and a fourth driving member (not shown in the figure) are provided accordingly. The third driving member is used to drive the first clamp 3 to move along the exposure direction 16, and the fourth driving member is used to drive the second clamp 4 to move along the exposure direction 16.

[0063] Example 3

[0064] This embodiment provides a printing screen clamping device, which includes a plurality of clamping components arranged along a first direction, where the first direction is a vertical direction.

[0065] The difference between the clamping assembly in this embodiment and that in the first embodiment is that the second positioning member 6 in this embodiment is disposed on the second substrate 2 .

[0066] Example 4

[0067] This embodiment provides a printing screen clamping device, which includes a plurality of clamping components arranged along a first direction. The structure of the clamping components is the same as that in Example 1, except that the plurality of clamping components in this embodiment are arranged along a second direction (not shown in the figure), and the second direction is a horizontal direction.

[0068] Example 5

[0069] This embodiment provides a printing screen clamping device, which includes multiple clamping components arranged along a first direction. The structure of the clamping components is the same as that in Example 1, except that the multiple clamping components in this embodiment are arranged along the first direction and the second direction (not shown in the figure), that is, the multiple clamping components are distributed in a matrix shape, the first direction is the vertical direction, and the second direction is the horizontal direction.

[0070] Example 6

[0071] This embodiment provides a printing screen clamping device, which includes multiple clamping components arranged along a first direction. The structure of the clamping components is the same as that in Example 1, except that the multiple clamping components in this embodiment are arranged along the first direction and the second direction (not shown in the figure), that is, the multiple clamping components are distributed in a matrix shape, the first direction is parallel to the horizontal direction, and the second direction is the horizontal direction.

[0072] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0073] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A printing screen clamping device, characterized in that: The printing screen clamping device comprises a plurality of clamping assemblies arranged along a first direction and / or a second direction, and the clamping assemblies comprise: A first substrate (1) and a second substrate (2) which are arranged opposite to each other and can move relative to each other; A first clamp (3) and a second clamp (4), wherein the first clamp (3) is arranged on the first substrate (1), and the second clamp (4) is arranged on the second substrate (2), and the first clamp (3) and the second clamp (4) are used to abut against the circumferential outer surface of the printing screen (15) from two oppositely arranged sides; A first positioning member (5) is provided on the first substrate (1) and is located between the first clamp (3) and the second clamp (4), the first positioning member (5) being used to abut against the circumferential outer surface of the printing screen (15); The first direction is perpendicular to the second direction, and both the first direction and the second direction are perpendicular to an exposure direction (16) of the printing screen (15).

2. The printing screen clamping device according to claim 1, characterized in that: The first clamp (3) is arranged on the first substrate (1) along the exposure direction (16), and is surrounded by the first substrate (1) to form a first receiving groove for receiving the printing screen (15); The second clamp (4) is arranged on the second substrate (2) along the exposure direction (16), and is surrounded by the second substrate (2) to form a second accommodating groove for accommodating the printing screen (15).

3. The printing screen clamping device according to claim 2, characterized in that: The first clamp (3) comprises a first abutting surface (301) facing the second clamp (4) and a second abutting surface (302) facing the first substrate (1); The second clamp (4) comprises a third abutting surface (401) facing the first clamp (3) and a fourth abutting surface (402) facing the second substrate (2).

4. The printing screen clamping device according to claim 3, characterized in that: The printing screen clamping device further comprises a first driving member (7) for driving the printing screen (15) to move toward the second abutting surface (302); The printing screen clamping device also includes a second driving member (8) for driving the printing screen (15) to move toward the fourth abutting surface (402).

5. The printing screen clamping device according to claim 3, characterized in that: The printing screen clamping device further comprises a third driving member for driving the first clamp (3) to move along an exposure direction (16); The printing screen clamping device also includes a fourth driving member for driving the second clamp (4) to move along the exposure direction (16).

6. The printing screen clamping device according to claim 1, characterized in that: The printing screen clamping device comprises a second positioning member (6) arranged on the first substrate (1) or the second substrate (2), the second positioning member (6) being arranged opposite to the first positioning member (5) and being located between the first clamp (3) and the second clamp (4); When the printing screen (15) is clamped between the first clamp (3) and the second clamp (4), at least one of the first positioning member (5) and the second positioning member (6) abuts against the circumferential outer surface of the printing screen (15).

7. The printing screen clamping device according to claim 1, characterized in that: The printing screen clamping device comprises a plurality of first clamps (3) arranged on the first substrate (1); The printing screen clamping device comprises a plurality of second clamps (4) arranged on the second substrate (2).

8. The printing screen clamping device according to claim 1, characterized in that: The printing screen clamping device also includes a guide rail (10), a first moving member (9) slidably connected to the guide rail (10) and connected to the second substrate (2), and a driving mechanism for driving the first moving member (9) to move along the guide rail (10).

9. The printing screen clamping device according to claim 8, characterized in that: The driving mechanism comprises a second moving member (11) connected to a second substrate (2), a screw nut mounted on the second moving member (11), a screw (12) inserted into the screw nut, and a motor (13) for driving the screw (12) to rotate.

10. The printing screen clamping device according to claim 8, characterized in that: The guide rail (10) is provided with two limit members (14) located on both sides of the first movable member (9) and used for limiting the moving range of the first movable member (9).

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