Flexible positioning device for printing screen

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By designing a flexible positioning device in a fabric screen printing machine, using the chute and elastic mechanism to buffer the impact force, and adjusting the positioning with the locking mechanism, the deformation problem of screen frame caused by traditional positioning methods is solved, and the printing quality and service life are improved .

CN222346515UInactive Publication Date: 2025-01-14ZHE JIANG HONG LV LAN FANG ZHI YIN RAN YOU XIAN GONG SI

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Patent Information

Application Number: CN202421081716.4
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-05-17
Publication Date: 2025-01-14
Estimated Expiration: Not applicable · inactive patent

AI Technical Summary

Technical Problem

The traditional card slot positioning method causes the screen frame to deform in the fabric screen printing machine, affecting the printing quality and service life.

Method used

A printed screen flexible positioning device is designed, using a combination of support frame, chute, elastic mechanism and locking mechanism. The impact force is buffered through the sliding chute and elastic mechanism, and the locking mechanism adjusts the positioning position and clamping force to avoid the net. The frame deformation.

Benefits of technology

It effectively reduces the deformation of the screen frame, improves the printing quality and service life, and allows adjustment of the clamping force and positioning position according to needs, improving the practicality of the device.

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Abstract

The utility model relates to the technical field of printing equipment, in particular to a flexible positioning device for a printing screen, which solves the problem of deformation of a screen frame caused by impact force and comprises a supporting frame, the screen frame is arranged in the supporting frame, a first sliding groove is formed in the supporting frame, a first supporting rod is arranged in the first sliding groove in a sliding fit mode, and a second supporting rod is arranged in the first supporting rod. A clamping groove is formed in one side of the first supporting rod, the screen frame is clamped with the clamping groove, and an elastic mechanism is arranged on the portion, located on the other side of the first supporting rod, of the supporting frame. According to the device, through cooperative arrangement of the first sliding groove, the first supporting rod and the elastic mechanism, the problem that in a traditional clamping groove positioning mode, impact force causes deformation of a screen frame, and consequently the printing quality is affected is solved; and the device can adjust the clamping force of the first supporting rod and the second supporting rod on the positioning of the screen printing plate frame according to requirements, so that the problems that the positioning clamping force is too large or too small, the screen printing plate frame is deformed when the clamping force is too large, the printing quality is influenced, and the positioning effect is poor when the clamping force is too small are prevented.

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Description

Technical Field

[0001] The utility model relates to the technical field of printing equipment, in particular to a flexible positioning device for a printing screen. Background Art

[0002] The fabric screen printing machine is one of the most important equipment for deep processing of fabrics such as cut pieces. It is mainly used to print pictures and texts on substrates. Screen printing belongs to orifice printing. The principle of orifice printing is to transfer dyes through the holes of the orifice plate to the substrate through a certain pressure to form graphics and texts.

[0003] The slot positioning method is a commonly used positioning method for fabric screen printing machines. By setting a convex platform and a concave platform, a pair of slots are formed, and a cylinder pair is used to drive the concave platform and the convex platform to engage, thereby achieving positioning.

[0004] However, when the concave platform in this positioning method moves forward and engages with the convex platform, a certain impact force will be generated, which can easily cause the screen frame to deform, resulting in a reduction in service life and affecting the printing quality. Utility Model Content

[0005] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a printing screen flexible positioning device to solve the problem of screen frame deformation caused by the impact force.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A flexible positioning device for a printing screen comprises a support frame, wherein a screen frame is arranged inside the support frame, a first slide groove is provided on the support frame, a first support rod is slidably fitted inside the first slide groove, a clamping groove is provided on one side of the first support rod, the screen frame is engaged with the clamping groove, and an elastic mechanism is arranged on the support frame at the other side of the first support rod; a pushing mechanism is provided on the side of the support frame away from the first support rod, a driving part of the pushing mechanism is drivingly connected to the screen frame, a locking mechanism is provided on the first support rod, and the pushing mechanism is electrically connected to the locking mechanism.

[0008] Preferably, the pushing mechanism includes a cylinder body mounted on a support frame, a second slide groove is provided on the support frame, a second support rod is slidably fitted in the second slide groove, the screen frame is connected to the second support rod by bolts, and the telescopic end of the cylinder body is fixedly connected to the second support rod.

[0009] Preferably, a support plate matching the screen frame is fixedly connected to the inner wall of the support frame.

[0010] Preferably, the elastic mechanism includes a fixed plate arranged in the support frame, slots are provided on both sides of the fixed plate, and more than two positioning slots are provided on the support frame. A first pin is engaged in the positioning slot, and the first pin passes through one end of the positioning slot and is inserted into the slot, and a first spring is installed between the first support rod and the fixed plate.

[0011] Preferably, the locking mechanism comprises a positioning block, to which a second latch is fixedly connected, and the first support rod is provided with two or more positioning holes, and inner walls of the positioning holes are engaged with outer surfaces of the second latch.

[0012] Preferably, a guide groove is provided on the positioning block, a locking rod is slidably fitted in the guide groove, a second spring is installed between the inner bottom wall of the guide groove and the locking rod, and a locking groove matching the locking rod is provided on the inner wall of the first sliding groove.

[0013] Preferably, a first electrode sheet is provided on the locking rod, a second electrode sheet matching the first electrode sheet is provided on the inner wall of the locking groove, and the cylinder body is electrically connected to the second electrode sheet.

[0014] Preferably, a fixing rod is provided in the slot, and a groove matching the fixing rod is formed on one side of the screen frame close to the first support rod.

[0015] The beneficial effects of the utility model are:

[0016] 1. The device solves the problem that the impact force causes the screen frame to deform, thereby affecting the printing quality, in the traditional slot positioning method through the coordinated arrangement of the first slide groove, the first support rod and the elastic mechanism; and the device can adjust the clamping force of the first support rod and the second support rod on the screen frame as needed to prevent the positioning clamping force from being too large or too small. When the clamping force is too large, it will cause the screen frame to deform, thereby affecting the printing quality. When the clamping pressure is too small, it will lead to poor positioning effect.

[0017] 2. Through the setting of the locking mechanism, the device can adjust the setting position of the screen frame according to needs, further improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2 It is a structural schematic diagram of the screen frame of the utility model.

[0020] Figure 3 It is a schematic diagram of the explosion structure of the first support rod of the utility model.

[0021] Figure 4 It is a structural schematic diagram of the driving mechanism of the utility model.

[0022] Figure 5 It is a schematic diagram of the explosion structure of the elastic mechanism of the utility model.

[0023] Figure 6 It is a schematic diagram of the explosion structure of the locking mechanism of the utility model.

[0024] In the accompanying drawings: 1. screen frame; 2. support frame; 3. first slide groove; 4. first support rod; 5. card slot; 6. elastic mechanism; 7. pushing mechanism; 8. locking mechanism; 9. cylinder body; 10. second slide groove; 11. second support rod; 12. support plate; 13. fixing plate; 14. slot; 15. positioning slot; 16. first latch; 17. first spring; 18. positioning block; 19. positioning socket; 20. guide groove; 21. locking rod; 22. second spring; 23. second latch; 24. first electrode sheet; 25. second electrode sheet; 26. fixing rod; 27. groove; 28. locking groove. DETAILED DESCRIPTION

[0025] The following will refer to Figures 1 to 6 The embodiments of the present invention are described in detail. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principle of the present invention and are not intended to limit the protection scope of the present invention.

[0026] Printing screen flexible positioning device, such as Figure 1-Figure 3 As shown, it includes a support frame 2, a screen frame 1 is arranged inside the support frame 2, the printing screen is arranged inside the screen frame 1, and reinforcing ribs are arranged inside the screen frame 1. The screen frame 1 with built-in reinforcing ribs can achieve greater tension of the screen, and combined with a high-mesh screen, smaller dot printing can be achieved; a first slide groove 3 is opened on the support frame 2, and a first support rod 4 is slidably matched in the first slide groove 3. A clamping groove 5 is opened on one side of the first support rod 4, and the screen frame 1 is clamped with the clamping groove 5. An elastic mechanism is arranged on the other side of the first support rod 4 on the support frame 2. 6; a pushing mechanism 7 is provided on the side of the support frame 2 away from the first support rod 4, a driving portion of the pushing mechanism 7 is drivingly connected to the screen frame 1, a locking mechanism 8 is provided on the first support rod 4, and the pushing mechanism 7 is electrically connected to the locking mechanism 8; the pushing mechanism 7 can push the screen frame 1 to move, thereby adjusting the position of the screen frame 1, and when the screen frame 1 moves to contact the first support rod 4, the elastic mechanism 6 is set to prevent the screen frame 1 from being subjected to a large impact force instantly, causing the screen frame 1 to deform, thereby affecting the service life and printing quality.

[0027] like Figure 4As shown, the pushing mechanism 7 includes a cylinder body 9 installed on the support frame 2, a second slide groove 10 is opened on the support frame 2, a second support rod 11 is slidably fitted in the second slide groove 10, the screen frame 1 and the second support rod 11 are connected by bolts, and the telescopic end of the cylinder body 9 is fixedly connected to the second support rod 11; a support plate 12 matching the screen frame 1 is fixedly connected to the inner wall of the support frame 2, and the support plate 12 plays a role in supporting the screen frame 1; when the cylinder body 9 is started, the telescopic end of the cylinder body 9 extends out and drives the second support rod 11 to slide along the direction of the second slide groove 10, and the second support rod 11 pushes the screen frame 1 to move closer to the first support rod 4.

[0028] like Figure 1 and Figure 5 As shown, the elastic mechanism 6 includes a fixed plate 13 arranged in the support frame 2, and slots 14 are provided on both sides of the fixed plate 13. More than two positioning slots 15 are provided on the support frame 2, and a first latch 16 is engaged in the positioning slot 15. The first latch 16 passes through one end of the positioning slot 15 and is inserted into the slot 14. A first spring 17 is installed between the first support rod 4 and the fixed plate 13. Through the cooperation of the first spring 17 and the first slide groove 3, when the screen frame 1 moves to the inserted slot 5, the screen frame 1 will collide with the first support rod 4, and the first support rod 4 slides along the direction of the first slide groove 3, thereby performing buffering to prevent the screen frame 1 from being subjected to a large impact force and causing the screen frame 1 to deform.

[0029] like Figure 3 , Figure 5 and Figure 6 As shown, the locking mechanism 8 includes a positioning block 18, on which a second latch 23 is fixedly connected, and the first support rod 4 is provided with more than two positioning holes 19, the inner wall of the positioning hole 19 is engaged with the outer surface of the second latch 23; a guide groove 20 is provided on the positioning block 18, and a locking rod 21 is slidably matched in the guide groove 20, a second spring 22 is installed between the inner bottom wall of the guide groove 20 and the locking rod 21, and a locking groove 28 matching the locking rod 21 is provided on the inner wall of the first slide groove 3; after the screen frame 1 moves to engage with the slot 5, the screen frame 1 continues to move and pushes the first support rod 4 to slide along the first slide groove 3, and when the screen frame 1 moves to the set position, the locking rod 21 is aligned with the locking groove 28, and the second spring 22 pushes the locking rod 21 to extend out of the guide groove 20 and is engaged in the locking groove 28, thereby positioning the position of the first support rod 4, that is, positioning the position of the screen frame 1.

[0030] A first electrode sheet 24 is provided on the locking rod 21, and a second electrode sheet 25 matching the first electrode sheet 24 is provided on the inner wall of the locking groove 28, and the cylinder body 9 is electrically connected to the second electrode sheet 25; when the locking rod 21 is inserted into the locking groove 28, the first electrode sheet 24 contacts the second electrode sheet 25, the second electrode sheet 25 is energized and controls the cylinder body 9 to close, so that the second support rod 11 will no longer move.

[0031] like Figure 3 As shown, a fixing rod 26 is provided in the slot 5, and a groove 27 matching the fixing rod 26 is provided on one side of the screen frame 1 close to the first support rod 4. The screen frame 1 is inserted into the slot 5, and the fixing rod 26 is engaged with the groove 27, so that the connection between the first support rod 4 and the screen frame 1 is more stable.

[0032] When the device is in use, the screen frame 1 is placed on the support plate 12, and the screen frame 1 is connected to the second support rod 11 by bolts. Then, the cylinder 9 is started to drive the second support rod 11 to slide along the second slide groove 10. The second support rod 11 pushes the screen frame 1 to move in the same direction. When the screen frame 1 moves to be inserted into the slot 5, the screen frame 1 hits the first support rod 4. Through the cooperation of the first spring 17 and the first slide groove 3, the first support rod 4 can slide in the direction of the first slide groove 3 for buffering, thereby preventing the screen frame 1 from being subjected to a large impact force instantly, causing the screen frame 1 to deform.

[0033] Then, the screen frame 1 continues to move, which will cause the first spring 17 to be continuously compressed, and the clamping pressure of the first support rod 4 and the second support rod 11 on the screen frame 1 will continue to increase. When the screen frame 1 moves to the set position, the locking rod 21 is aligned with the locking groove 28, and the second spring 22 pushes against the locking rod 21 to extend out of the guide groove 20 and is stuck in the locking groove 28, thereby positioning the position of the first support rod 4, that is, positioning the position of the screen frame 1; when the locking rod 21 is stuck in the locking groove 28, the first electrode sheet 24 contacts the second electrode sheet 25, the second electrode sheet 25 is energized and controls the cylinder body 9 to close, so that the second support rod 11 will no longer move. At this time, the clamping pressure of the first support rod 4 and the second support rod 11 on the screen frame 1 is the set clamping pressure.

[0034] It should be noted that, through the cooperation of the positioning hole 19 and the second pin 23, the positioning block 18 can be disassembled and the position of the positioning block 18 can be adjusted, that is, the set position where the movement of the screen frame 1 ends is adjusted; when the end position of the movement of the screen frame 1 is determined, the position of the fixed plate 13 can be adjusted through the cooperation of the positioning groove 15 and the first pin 16, that is, the compression amount of the first spring 17 can be adjusted, and then the clamping force set by the first support rod 4 and the second support rod 11 on the screen frame 1 is adjusted to prevent the clamping force from being too large or too small. When the clamping force is too large, it will cause the screen frame 1 to deform, thereby affecting the printing quality. When the clamping force is too small, it will lead to poor positioning effect.

[0035] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0036] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0037] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A flexible positioning device for a printing screen, comprising a support frame (2), characterized in that: A screen frame (1) is provided in the support frame (2), a first slide groove (3) is provided on the support frame (2), a first support rod (4) is slidably fitted in the first slide groove (3), a clamping groove (5) is provided on one side of the first support rod (4), the screen frame (1) is clamped with the clamping groove (5), and an elastic mechanism (6) is provided on the support frame (2) at the other side of the first support rod (4); a pushing mechanism (7) is provided on the side of the support frame (2) away from the first support rod (4), a driving part of the pushing mechanism (7) is drivingly connected to the screen frame (1), a locking mechanism (8) is provided on the first support rod (4), and the pushing mechanism (7) is electrically connected to the locking mechanism (8).

2. The printing screen flexible positioning device according to claim 1, characterized in that: The pushing mechanism (7) comprises a cylinder body (9) mounted on a support frame (2); a second slide groove (10) is provided on the support frame (2); a second support rod (11) is slidably fitted in the second slide groove (10); the screen frame (1) is connected to the second support rod (11) by bolts; and a telescopic end of the cylinder body (9) is fixedly connected to the second support rod (11).

3. The printing screen flexible positioning device according to claim 2, characterized in that: A support plate (12) matching the screen frame (1) is fixedly connected to the inner wall of the support frame (2).

4. The printing screen flexible positioning device according to claim 1, characterized in that: The elastic mechanism (6) comprises a fixing plate (13) arranged in the support frame (2), slots (14) are provided on both sides of the fixing plate (13), more than two positioning slots (15) are provided on the support frame (2), a first latch (16) is engaged in the positioning slot (15), the first latch (16) passes through one end of the positioning slot (15) and is inserted into the slot (14), and a first spring (17) is installed between the first support rod (4) and the fixing plate (13).

5. The printing screen flexible positioning device according to claim 2, characterized in that: The locking mechanism (8) comprises a positioning block (18) to which a second latch (23) is fixedly connected, and the first support rod (4) is provided with more than two positioning holes (19), the inner wall of the positioning hole (19) being engaged with the outer surface of the second latch (23).

6. The printing screen flexible positioning device according to claim 5, characterized in that: The positioning block (18) is provided with a guide groove (20), a locking rod (21) is slidably fitted in the guide groove (20), a second spring (22) is installed between the inner bottom wall of the guide groove (20) and the locking rod (21), and a locking groove (28) matching the locking rod (21) is provided on the inner wall of the first sliding groove (3).

7. The printing screen flexible positioning device according to claim 6, characterized in that: The locking rod (21) is provided with a first electrode sheet (24), the inner wall of the locking groove (28) is provided with a second electrode sheet (25) matching the first electrode sheet (24), and the cylinder body (9) is electrically connected to the second electrode sheet (25).

8. The printing screen flexible positioning device according to claim 1, characterized in that: A fixing rod (26) is arranged in the clamping slot (5), and a groove (27) matching the fixing rod (26) is provided on a side of the screen frame (1) close to the first support rod (4).