Fixing device for adjusting screen printing plate

Abstract

The utility model discloses a fixing device for adjusting a screen printing plate, which comprises two clamping plates and two groups of clamping components, the two groups of clamping components are oppositely fixed on two sides of a printing head, the two clamping plates are oppositely arranged on opposite sides of the clamping components, and each clamping component comprises a mounting plate, a fixing block and a connecting block. The lower end of the fixing block is in sliding connection with the sliding block, the upper end of the fixing block is fixedly connected with the printing head, the mounting plate is provided with a first lead screw assembly corresponding to the fixing block, the first lead screw assembly is in threaded connection with the fixing block, and the surface of the mounting plate is provided with a second guide shaft perpendicular to the first guide shaft. The connecting block is slidably connected with the second sliding block and fixedly connected with the clamping plate, the mounting plate is provided with a second lead screw assembly corresponding to the connecting block, and the second lead screw assembly is in threaded connection with the connecting block. According to the fixing device for adjusting the screen printing plate, the screen printing plate can be adjusted in multiple directions, so that the screen printing plate is adjusted, and better alignment is achieved.

Description

Technical Field

[0001] This utility model relates to the field of printing machine technology, and in particular to a fixing device for adjusting the screen. Background Technology

[0002] Before printing, existing printing machines require fixing the screen to the print head and aligning the screen with the table below to ensure accurate alignment of the pattern when printing on the substrate on the table.

[0003] Existing screen mounting and fixing devices mainly use two sets of fixing devices at the lower end of the print head to clamp the screen. These two sets of fixing devices are positioned opposite each other and engage with locking blocks on the fixing devices via positioning holes on the screen. Controlling the relative movement of the two sets of fixing devices controls the clamping and fixing of the screen. However, existing fixing devices can only adjust the screen vertically, not horizontally, leading to errors when aligning the screen with the printing platen. Utility Model Content

[0004] The purpose of this invention is to provide a fixing device for adjusting a screen, which can adjust the screen in multiple directions to achieve better alignment.

[0005] The technical solution adopted by the fixing device for adjusting the screen disclosed in this utility model is:

[0006] A fixing device for adjusting a screen printing plate includes two clamping plates for holding the screen printing plate and two sets of clamping assemblies. The two sets of clamping assemblies are fixedly fixed to both sides of the printing head. The two clamping plates are arranged opposite each other on opposite sides of the clamping assemblies. Each clamping assembly includes a mounting plate, a fixing block, and a connecting block. The surface of the mounting plate facing the other set of clamping assemblies has a first guide shaft. The lower end of the fixing block is slidably connected to a slider, and the upper end of the fixing block is fixedly connected to the printing head. The mounting plate has a first lead screw assembly corresponding to the fixing block, and the first lead screw assembly is threadedly connected to the fixing block. The surface of the mounting plate is perpendicular to the first guide shaft and has a second guide shaft. The connecting block is slidably connected to a second slider and fixedly connected to the clamping plates. The mounting plate has a second lead screw assembly corresponding to the connecting block, and the second lead screw assembly is threadedly connected to the connecting block.

[0007] As a preferred embodiment, the first lead screw assembly and the second lead screw assembly have the same structure. The second lead screw assembly includes a motor, a lead screw, a connecting sleeve, and a transmission belt. The connecting sleeve is fixed to the mounting plate, the lead screw is located in the middle of the connecting sleeve, the motor is located on one side of the connecting sleeve, and the motor and one end of the lead screw are connected by transmission belt. The other end of the lead screw is threadedly connected to the connecting block.

[0008] As a preferred embodiment, a knob is provided at the end of the lead screw away from the connecting block, and the knob is fixedly connected to the lead screw.

[0009] As a preferred embodiment, the clamping plate is provided with two positioning posts on the side away from the clamping assembly, and the positioning posts are arranged opposite to each other at both ends of the clamping plate.

[0010] As a preferred embodiment, there are two connecting blocks, which are disposed at both ends of the clamping plate. The second guide shaft is configured to correspond to the number of connecting blocks, and the connecting block on the side opposite to the second lead screw assembly is connected to the mounting plate by a stop block and is provided with a spring.

[0011] As a preferred embodiment, the fixing block is disposed between the two connecting blocks and located in the middle of the mounting plate.

[0012] As a preferred embodiment, the system also includes a housing, which covers the outside of the mounting plate, and the housing has a sliding groove corresponding to the connecting block.

[0013] The beneficial effects of the screen fixing device disclosed in this utility model are as follows: When installing the screen, the screen is first placed between two clamping plates. The first lead screw assembly is rotated. Since the fixing block is fixed below the printing head, when the first lead screw assembly rotates, it cannot move the fixing block. Instead, it moves the mounting plate, thereby driving the clamping assemblies on both sides of the screen to move the clamping plates closer to each other, clamping and fixing the screen, thus completing the screen installation. When the screen needs to be adjusted, the first lead screw assemblies of the clamping assemblies on both sides cooperate with each other. If one side moves to the left, the other side moves to the right, ensuring that the distance between the two clamping plates remains unchanged, and the screen is always clamped and fixed. When the screen needs to be adjusted laterally, the second lead screw assembly is also rotated. The connecting block, due to the restriction of the second guide shaft, converts the rotational motion into linear motion, thereby driving the clamping plates to slide. The clamping plates on both sides of the screen move in the same direction, driving the screen to be adjusted laterally, achieving better alignment. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of a fixing device for adjusting a screen according to the present invention.

[0015] Figure 2 This is a schematic diagram of the clamping component structure of a fixing device for adjusting a screen printing plate according to the present invention.

[0016] Figure 3 This is a schematic diagram of the second lead screw assembly of a fixing device for adjusting a screen according to the present invention. Detailed Implementation

[0017] The present invention will be further described and illustrated below with reference to specific embodiments and the accompanying drawings:

[0018] Please refer to Figure 1 and Figure 2 A fixing device for adjusting a screen printing plate includes two clamping plates 10 for holding the screen printing plate and two sets of clamping assemblies 20. The two sets of clamping assemblies 20 are fixed to each other on both sides of the printing head. The two clamping plates 10 are arranged opposite each other on opposite sides of the clamping assemblies 20. Each clamping assembly 20 includes a mounting plate 21, a fixing block 22, and a connecting block. The surface of the mounting plate 21 facing the other set of clamping assemblies 20 is provided with a first guide shaft 24. The lower end of the fixing block 22 is slidably connected to a slider, and the upper end of the fixing block 22 is fixedly connected to the printing head. The mounting plate 21 is provided with a first lead screw assembly 30 corresponding to the fixing block 22. The first lead screw assembly 30 is threadedly connected to the fixing block 22. The surface of the mounting plate 21 is provided with a second guide shaft 25 perpendicular to the first guide shaft 24. The connecting block is slidably connected to a second slider and fixedly connected to the clamping plates 10. The mounting plate 21 is provided with a second lead screw assembly 40 corresponding to the connecting block. The second lead screw assembly 40 is threadedly connected to the connecting block.

[0019] During screen installation, the screen is first placed between two clamping plates 10. The first lead screw assembly 30 is rotated. Since the fixing block 22 is fixed below the printing head, when the first lead screw assembly 30 rotates, it cannot move the fixing block 22. Instead, it moves the mounting plate 21, thereby driving the clamping assemblies 20 on both sides of the screen to move the clamping plates 10 closer to each other, clamping and fixing the screen, thus completing the screen installation. When the screen needs to be adjusted, the first lead screw assemblies 30 of the clamping assemblies 20 on both sides cooperate with each other. If one side moves to the left, the other side moves to the right, ensuring that the distance between the two clamping plates 10 remains unchanged, and the screen is always clamped and fixed. When the screen needs to be adjusted laterally, the second lead screw assembly 40 is rotated. Due to the restriction of the second guide shaft 25, the connecting block converts the rotational motion into linear motion, thereby driving the clamping plates 10 to slide. The clamping plates 10 on both sides of the screen move in the same direction, driving the screen to be adjusted laterally for better alignment.

[0020] Please refer to Figure 3 In the above scheme, the first lead screw assembly 30 and the second lead screw assembly 40 have the same structure. The second lead screw assembly 40 includes a motor 41, a lead screw 42, a connecting sleeve 4323 and a transmission belt 44. The connecting sleeve 4323 is fixed on the mounting plate 21. The lead screw 42 is located in the middle of the connecting sleeve 4323. The motor 41 is located on one side of the connecting sleeve 4323. The motor 41 and one end of the lead screw 42 are connected by transmission through the transmission belt 44. The other end of the lead screw 42 is threadedly connected to the connecting block.

[0021] The motor 41 drives the lead screw 42 to rotate via the conveyor belt. The connecting block is restricted by the second guide shaft 25, so the connecting block cannot rotate, converting the rotation into linear motion, thereby pushing the clamping plate 10. Similarly, the first lead screw assembly 30 is used to fix the block 22 to be fixed by the printing head, and the fixed block 22 is restricted by the first guide shaft 24, so the fixed block 22 remains unchanged. The mounting plate 21 slides relative to the fixed block 22, thereby moving the clamping plate 10.

[0022] Furthermore, a knob 45 is provided at the end of the lead screw 42 away from the connecting block. The knob 45 is fixedly connected to the lead screw 42, and the position of the screen can be adjusted by manually rotating the knob 45.

[0023] Two positioning posts 11 are provided on the side of the clamping plate 10 away from the clamping component 20. The positioning posts 11 are positioned opposite each other at both ends of the clamping plate 10. The positioning posts 11 cooperate with the positioning grooves that originally exist on the screen. When the clamping plates 10 on both sides of the screen are clamped, the positioning posts 11 are inserted into the positioning grooves on the screen to achieve a better restriction effect and prevent the screen from sliding up and down.

[0024] There are two connecting blocks, which are set at both ends of the clamping plate 10. The second guide shaft 25 is set according to the number of connecting blocks. Through the connecting blocks on both sides of the clamping plate 10, the fixing and movement of the clamping plate 10 are more stable, and the stability of the clamped screen is better. In addition, the connecting block on the side of the second lead screw assembly 40 is connected to the mounting plate 21 through the stop block 27 and the spring 26 is provided. The spring 26 can play a buffering role when the second lead screw assembly 40 pushes the connecting block to slide, and at the same time has a counter-pushing force to ensure that the connecting block threaded with the lead screw 42 can fit more tightly and reduce the occurrence of shaking.

[0025] Similarly, the fixing block 22 is positioned between the two connecting blocks and in the middle of the mounting plate 21, so that both ends of the entire clamping assembly 20 are in a balanced state and there is no offset when the mounting plate 21 moves.

[0026] It also includes a housing 28, which covers the outside of the mounting plate 21. The housing 28 has a sliding groove corresponding to the connecting block to prevent dust.

[0027] This invention provides a fixing device for adjusting a screen printing plate. During screen installation, the screen is first placed between two clamping plates. The first lead screw assembly is rotated. Since the fixing block is fixed below the printing head, the rotation of the first lead screw assembly cannot move the fixing block; instead, it moves the mounting plate, thereby driving the clamping assemblies on both sides of the screen to move the clamping plates closer together, clamping and fixing the screen, thus completing the screen installation. When the screen needs adjustment, the first lead screw assemblies of the clamping assemblies on both sides cooperate, moving one side to the left while the other side moves to the right, ensuring that the distance between the two clamping plates remains constant, always clamping and fixing the screen. When the screen needs lateral adjustment, the second lead screw assembly is also rotated. The connecting block, constrained by the second guide shaft, converts the rotational motion into linear movement, causing the connecting block to slide the clamping plates. Furthermore, the clamping plates on both sides of the screen move in the same direction, driving the screen to adjust laterally for better alignment.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A fixing device for adjusting a screen printing plate, characterized in that, The device includes two clamping plates for holding the screen printing plate and two sets of clamping assemblies. The two sets of clamping assemblies are fixedly positioned opposite each other on both sides of the printing head. The two clamping plates are positioned opposite each other on opposite sides of the clamping assemblies. Each clamping assembly includes a mounting plate, a fixing block, and a connecting block. The surface of the mounting plate facing the other set of clamping assemblies has a first guide shaft. The lower end of the fixing block is slidably connected to a slider, and the upper end of the fixing block is fixedly connected to the printing head. The mounting plate has a first lead screw assembly corresponding to the fixing block, and the first lead screw assembly is threadedly connected to the fixing block. The surface of the mounting plate has a second guide shaft perpendicular to the first guide shaft. The connecting block is slidably connected to a second slider and fixedly connected to the clamping plate. The mounting plate has a second lead screw assembly corresponding to the connecting block, and the second lead screw assembly is threadedly connected to the connecting block.

2. The fixing device for adjusting a screen as described in claim 1, characterized in that, The first lead screw assembly and the second lead screw assembly have the same structure. The second lead screw assembly includes a motor, a lead screw, a connecting sleeve and a transmission belt. The connecting sleeve is fixed to the mounting plate. The lead screw is located in the middle of the connecting sleeve. The motor is located on one side of the connecting sleeve. The motor and one end of the lead screw are connected by transmission belt. The other end of the lead screw is threaded to the connecting block.

3. The fixing device for adjusting the screen as described in claim 2, characterized in that, A knob is provided at the end of the lead screw away from the connecting block, and the knob is fixedly connected to the lead screw.

4. The fixing device for adjusting a screen as described in claim 1, characterized in that, The clamping plate has two positioning posts on the side away from the clamping assembly, and the positioning posts are positioned opposite each other at both ends of the clamping plate.

5. A fixing device for adjusting a screen as described in claim 4, characterized in that, There are two connecting blocks, which are located at both ends of the clamping plate. The second guide shaft is set according to the number of connecting blocks, and the connecting block on the side opposite to the second lead screw assembly is connected to the mounting plate by a stop block and a spring.

6. The fixing device for adjusting a screen as described in claim 5, characterized in that, The fixing block is positioned between the two connecting blocks and in the middle of the mounting plate.

7. The fixing device for adjusting a screen as described in claim 6, characterized in that, It also includes a housing, which covers the outside of the mounting plate, and the housing has a sliding groove corresponding to the connecting block.

Images