Screen fixing device of printing machine

Abstract

The screen fixing device comprises a positioning mechanism and an adjusting mechanism, the positioning mechanism comprises a bottom plate and a positioning plate, first sliding rails are arranged at the two ends of the bottom plate, sliding blocks are arranged on the first sliding rails, the two ends of the positioning plate are fixedly connected with the two sliding blocks respectively, and the adjusting mechanism is arranged on the positioning plate. A first lead screw assembly is arranged on one side of the bottom plate and drives the sliding block to move, the adjusting mechanism is rotationally connected with the middle of the bottom plate through a rotating shaft and comprises a fixed plate and a movable plate, the movable plate is fixedly connected with the upper end of the rotating shaft, and a second sliding rail is arranged below the fixed plate. The movable plate is in sliding connection with the second sliding rail, the fixed plate is provided with a second lead screw assembly, and the second lead screw assembly drives the movable plate to move. The screen printing plate fixing device of the printing machine can be adjusted according to the installation requirement of the screen printing plate, and therefore the screen printing plate can be aligned more accurately.

Description

Technical Field

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

[0002] Printing refers to the process of dyes or coatings forming patterns on fabrics. Printing machines are mechanical equipment used for batch printing. Most of the existing printing processes use printing machines to replace traditional manual reinforcement, solving the problems of manual printing with high labor intensity, low efficiency, and inconsistent printing. The use of mechanical equipment for printing reduces labor intensity, increases labor efficiency, makes printing uniform, and improves printing quality.

[0003] Before printing, the existing printing machine needs to fix the screen on the printing machine. The screen is clamped and fixed by two relatively arranged fixing devices on the printing machine. However, deviation is easy to occur during the fixing process, resulting in the inability to accurately align the positioning posts on the screen with the positioning holes on the fixing devices. In addition, when different screens are used, the printing patterns corresponding to different screens are also different. Therefore, the installation angles and offset angles of different screens are different, resulting in the need to replace or adjust the fixing devices on the printing machine, which brings inconvenience to people's installation and use. Utility Model Content

[0004] The utility model aims to provide a screen fixing device for a printing machine, which can be adjusted according to the installation requirements of the screen, so that the screen can be aligned more accurately.

[0005] The technical solution adopted by the screen fixing device of a printing machine disclosed in the utility model is:

[0006] A screen fixing device for a printing machine comprises a positioning mechanism and an adjustment mechanism, the positioning mechanism comprises a base plate and a positioning plate, first slide rails are provided at both ends of the base plate, a slider is provided on the first slide rail, both ends of the positioning plate are fixedly connected to the two sliders respectively, a first screw rod assembly is provided on one side of the base plate, the first screw rod assembly drives the slider to move, the adjustment mechanism is rotatably connected to the middle part of the base plate through a rotating shaft, the adjustment mechanism comprises a fixed plate and a movable plate, the movable plate is fixedly connected to the upper end of the rotating shaft, a second slide rail is provided under the fixed plate, the movable plate is slidably connected to the second slide rail, the fixed plate is provided with a second screw rod assembly, and the second screw rod assembly drives the movable plate to move.

[0007] As a preferred solution, two limiting members for fixing the screen are provided on the side of the positioning plate away from the slider, and the limiting members are relatively arranged at two ends of the positioning plate.

[0008] As a preferred embodiment, the first screw assembly includes a first motor, a first screw and a first nut seat, the first motor is fixed to one side of the base plate, the first screw and the first motor are fixedly connected through a coupling, a fixing block is provided on the side of the base plate close to the motor, the first screw passes through the fixing block, the first nut seat is sleeved on the surface of the first screw, and the first nut seat is fixedly connected to the slider through a connecting plate.

[0009] As a preferred embodiment, the second screw assembly includes a second motor, a second screw and a second nut seat, the fixed plate is vertically provided with a vertical plate, the lower end of the vertical plate extends to the bottom of the fixed plate, the second motor is fixed to the upper end of the vertical plate, the output shaft of the second motor passes through the vertical plate and is provided with a first roller, the lower end of the vertical plate corresponding to the first roller is provided with a second roller, the first roller and the second roller are connected by belt drive, the second screw is fixedly connected to the second roller, the second nut seat is threadedly connected to the second screw, and the second nut seat is fixedly connected to the movable plate.

[0010] As a preferred solution, a rotating seat is provided on the surface of the bottom plate, one end of the rotating shaft is rotatably connected to the rotating shaft seat, and a damping washer is provided between the inner wall of the rotating seat and the rotating shaft.

[0011] The beneficial effect of a screen fixing device of a printing machine disclosed by the utility model is that: a slider on one side of the bottom plate is driven to move by a first screw rod assembly of a positioning mechanism, and the positioning plate is driven to move by the slider, thereby driving the screen fixed in contact with the positioning plate to be adjusted and moved, and the slider and the first slide rail at the other end of the positioning plate can ensure the stability of the positioning plate when moving, and the second screw rod assembly of the adjustment mechanism can drive the moving plate to move, and the moving plate is connected to the bottom plate through a rotating shaft, thereby driving the positioning mechanism to move, thereby also achieving the purpose of adjusting the screen, and the moving plate is rotatably connected to the bottom plate, and the bottom plate can be adapted to the situation of the screen to make the bottom plate swing left and right, thereby achieving a better adaptation effect, so that the screen can be more accurately aligned. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The utility model is a structural schematic diagram of a screen fixing device of a printing machine.

[0013] Figure 2 The utility model is a schematic diagram of the structure of an adjustment mechanism of a screen fixing device of a printing machine. DETAILED DESCRIPTION

[0014] The present invention is further described and illustrated below in conjunction with specific embodiments and accompanying drawings:

[0015] Please refer to Figure 1 and Figure 2A screen fixing device for a printing machine includes a positioning mechanism 10 and an adjusting mechanism 20. The positioning mechanism 10 includes a bottom plate 11 and a positioning plate 12. First slide rails 13 are provided at both ends of the bottom plate 11. Slide blocks 14 are provided on the first slide rails 13. Both ends of the positioning plate 12 are fixedly connected with the two slide blocks 14 respectively. A first screw rod assembly 15 is provided on one side of the bottom plate 11. The first screw rod assembly 15 drives the slide block 14 to move. The adjusting mechanism 20 is rotatably connected to the middle part of the bottom plate 11 through a rotating shaft 21. The adjusting mechanism 20 includes a fixed plate 22 and a movable plate 23. The movable plate 23 is fixedly connected to the upper end of the rotating shaft 21. A second slide rail 24 is provided below the fixed plate 22. The movable plate 23 is slidably connected to the second slide rail 24. The fixed plate 22 is provided with a second screw rod assembly 25. The second screw rod assembly 25 drives the movable plate 23 to move.

[0016] The first screw assembly 15 of the positioning mechanism 10 drives the slider 14 on one side of the base plate 11 to move, and the slider 14 drives the positioning plate 12 to move, thereby driving the screen fixed in contact with the positioning plate 12 to adjust and move, and the slider 14 and the first slide rail 13 at the other end of the positioning plate 12 can ensure the stability of the positioning plate 12 when moving, and the second screw assembly 25 of the adjustment mechanism 20 can drive the moving plate 23 to move, and the moving plate 23 is connected to the base plate 11 through the rotating shaft 21, thereby driving the positioning mechanism 10 to move, thereby also achieving the purpose of adjusting the screen, and the moving plate 23 is rotatably connected to the base plate 11, and can adapt to the situation of the screen to make the base plate 11 swing left and right, thereby achieving a better adaptation effect, so that the screen can be more accurately aligned.

[0017] In the above scheme, two limiting members 121 for fixing the screen are provided on the side of the positioning plate 12 away from the slider 14. The limiting members 121 are relatively arranged at both ends of the positioning plate 12. The limiting members 121 are used to clamp one side of the screen so that the screen can be clamped and fixed between the two sets of screen fixing devices.

[0018] The first screw assembly 15 includes a first motor 151, a first screw rod 152 and a first nut seat 153. The first motor 151 is fixed to one side of the base plate 11. The first screw rod 152 is fixedly connected to the first motor 151 through a coupling 154. A fixing block 155 is provided on one side of the base plate 11 close to the motor. The first screw rod 152 passes through the fixing block 155. The first nut seat 153 is sleeved on the surface of the first screw rod 152, and the first nut seat 153 is fixedly connected to the slider 14 through a connecting plate 156.

[0019] The first motor 151 drives the first screw rod 152 to rotate, and the first nut seat 153 is sleeved on the first screw rod 152. At the same time, the first nut seat 153 is fixedly connected to the slider 14, and the slider 14 is restricted by the first slide rail 13 and cannot rotate. Therefore, when the first screw rod 152 rotates, the first nut seat 153 pushes the slider 14 to move along the first slide rail 13.

[0020] The second screw assembly 25 includes a second motor 251, a second screw rod 252 and a second nut seat 253. The fixed plate 22 is vertically provided with a vertical plate 254, and the lower end of the vertical plate 254 extends to the bottom of the fixed plate 22. The second motor 251 is fixed to the upper end of the vertical plate 254. The output shaft of the second motor 251 passes through the vertical plate 254 and is provided with a first roller 255. The lower end of the vertical plate 254 of the first roller 255 is correspondingly provided with a second roller 256. The first roller 255 and the second roller 256 are connected by a belt 257. The second screw rod 252 is fixedly connected to the second roller 256. The second nut seat 253 is threadedly connected to the second screw rod 252, and the second nut seat 253 is fixedly connected to the movable plate 23.

[0021] The second motor 251 is used to drive the first roller 255 to rotate, and the first roller 255 drives the second roller 256 to rotate through the belt 257, and the second roller 256 drives the second screw 252 to rotate. Since the second nut seat 253 is threadedly connected to the second screw 252, and the second screw 252 is fixedly connected to the movable plate 23, the movable plate 23 is restricted by the second slide rail 24, so that the second screw 252 drives the movable plate 23 to move.

[0022] A rotating seat 111 is provided on the surface of the bottom plate 11, one end of the rotating shaft 21 is rotatably connected to the rotating shaft 21 seat, and a damping washer is provided between the inner wall of the rotating seat 111 and the rotating shaft 21. The damping washer can increase the friction between the rotating seat 111 and the rotating shaft 21, so that a damping force is generated during rotation to avoid excessive rotation and damage to the screen.

[0023] The utility model provides a screen fixing device for a printing machine, wherein a slider on one side of a bottom plate is driven to move by a first screw rod assembly of a positioning mechanism, and a positioning plate is driven to move by the slider, thereby driving the screen fixed in contact with the positioning plate to be adjusted and moved, and the slider and the first slide rail at the other end of the positioning plate can ensure the stability of the positioning plate when moving, and the second screw rod assembly of the adjustment mechanism can drive the moving plate to move, and the moving plate is connected to the bottom plate through a rotating shaft, thereby driving the positioning mechanism to move, thereby also achieving the purpose of adjusting the screen, and the moving plate is rotatably connected to the bottom plate, and the bottom plate can be adapted to the situation of the screen to make the bottom plate swing left and right, thereby achieving a better adaptation effect, and enabling the screen to be more accurately aligned.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A screen fixing device for a printing machine, characterized in that: The cam is provided with a second slider at one end and a second slider at the other end, and the cam is provided with a second slider at the other end.

2. A screen fixing device for a printing machine as claimed in claim 1, characterized in that: Two limiting members for fixing the screen are arranged on one side of the positioning plate away from the slider, and the limiting members are arranged at two ends of the positioning plate opposite to each other.

3. A screen fixing device for a printing machine as claimed in claim 1, characterized in that: The first screw assembly includes a first motor, a first screw and a first nut seat. The first motor is fixed to one side of the base plate. The first screw and the first motor are fixedly connected through a coupling. A fixing block is provided on one side of the base plate close to the motor. The first screw passes through the fixing block. The first nut seat is sleeved on the surface of the first screw, and the first nut seat is fixedly connected to the slider through a connecting plate.

4. A screen fixing device for a printing machine as claimed in claim 1, characterized in that: The second screw rod assembly includes a second motor, a second screw and a second nut seat. The fixed plate is vertically provided with a vertical plate, and the lower end of the vertical plate extends to the bottom of the fixed plate. The second motor is fixed to the upper end of the vertical plate. The output shaft of the second motor passes through the vertical plate and is provided with a first roller. The lower end of the vertical plate corresponding to the first roller is provided with a second roller. The first roller and the second roller are connected by belt transmission. The second screw is fixedly connected to the second roller, the second nut seat is threadedly connected to the second screw, and the second nut seat is fixedly connected to the movable plate.

5. A screen fixing device for a printing machine as claimed in claim 1, characterized in that: A rotating seat is provided on the surface of the bottom plate, one end of the rotating shaft is rotatably connected to the rotating shaft seat, and a damping washer is provided between the inner wall of the rotating seat and the rotating shaft.

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