Cloth centering device of printing machine

Abstract

The utility model relates to the technical field of cloth printing, and discloses a cloth centering device of a printing machine, which comprises a mounting shell, and supports are fixedly connected to two ends of the bottom of the mounting shell. According to the cloth centering device of the printing machine, a worker penetrates out cloth through a mounting shell to enable the cloth to be placed on the surface of a first roller, then a pull rod is pulled forwards to drive an elastic piece to enable an inserting block to be separated from an inserting groove, the distance between two sleeve shells is adjusted according to the size of the cloth, and the cloth slides to a designated position on the surface of a sliding rod; the two sides, making contact with cloth, of the two cloth guide roller shafts rotate, the cloth is guided through the indents of the cloth guide roller shafts, then after the sleeve shell is adjusted to slide to the designated position, the elastic pieces rebound to drive the insertion blocks to be inserted into the insertion grooves, the position of the sleeve shell is fixed, and therefore the flow direction of the cloth is controlled; and meanwhile, the cloth can be placed in the concave design of the cloth guide roller shaft, so that the cloth is effectively prevented from being curled.

Description

Technical Field

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

[0002] Fabric printing is a process that involves precisely transferring patterns or designs onto fabric. During this process, the fabric may shift during movement, causing the printing dots to tilt and thus affecting the overall effect of the fabric printing.

[0003] Chinese patent discloses a conveyor belt structure for a screen printing machine (authorization announcement number CN209065091U). This patented technology allows for adjustment of the main shaft to control the downward pressure and ensure the distance between it and the conveyor belt. By adjusting the position, it ensures that different materials can pass through stably and at a uniform speed. Utilizing a support frame, adjusting rod, knob, and conveyor belt, the conveyor belt can be adjusted directly when the equipment is not running, ensuring stable operation of the equipment over a long period of time. The conveyor belt has a robust structure, good operating effect, and is simple to operate and easy to control.

[0004] Regarding the above and existing related technologies, the inventors believe that the following defects often exist: when the conveying device transports the fabric, since the position of the two sides of the fabric is not restricted, the fabric will tilt and deviate to both ends when it moves on the roller surface. This causes the position of the printing point to shift when the fabric moves to the printing area, affecting the uniformity of the fabric printing, resulting in misaligned fabric printing and increasing the production of defective fabric printing products. Utility Model Content

[0005] The technical problem to be solved by this utility model is that the existing technology has the disadvantage that the fabric is prone to deviation during the fabric feeding process. To address this, we propose a fabric alignment device for a printing machine.

[0006] To achieve the above objectives, this application adopts the following technical solution: a fabric centering device for a printing machine, comprising a mounting shell, brackets fixedly connected to both ends of the bottom of the mounting shell, a first roller installed inside the mounting shell, a sliding rod fixedly connected to the front end of the mounting shell, a plurality of slots opened at the front end of the sliding rod, a sleeve slidably connected to the surface of the sliding rod, an L-shaped rod fixedly connected to the top of the sleeve, a guide roller shaft rotatably connected to the bottom of the L-shaped rod via a rotating shaft, an elastic piece fixedly connected to one side of the sleeve, a pull rod fixedly connected to one side of the elastic piece, and an insert fixedly connected to the other side of the elastic piece.

[0007] Preferably, the top of the slide rod is provided with a groove, and a slider is fixedly connected to the inner wall of the sleeve, with the surface of the slider slidably connected to the inner wall of the groove.

[0008] Preferably, one side of the slot opening has an arc-shaped bevel, and one side of the insert block is inclined.

[0009] Preferably, both sides of the mounting shell are provided with cross grooves, the inner wall of the cross grooves is slidably connected with a cross slide plate, the opposite side of the cross slide plate is installed with a second roller, and both ends of the top of the mounting shell are fixedly connected with nut blocks, the internal threads of the nut blocks are connected with push rods.

[0010] Preferably, a first spring is fixedly connected to the bottom of the cross-shaped sliding plate, and the bottom of the first spring is fixedly connected to the bottom of the inner wall of the cross-shaped sliding plate.

[0011] Preferably, an extension rod is fixedly connected to the rear end of the mounting shell, a rotating plate is rotatably connected to the surface of the extension rod, and a brush is fixedly connected to the bottom of the rotating plate.

[0012] Preferably, a second spring is fixedly connected to both ends of the rear side of the mounting shell, and the top of the second spring is fixedly connected to the extension rod.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] In this invention, the worker passes the fabric through the mounting shell and places it on the surface of the first roller. Then, the pull rod is pulled forward, causing the elastic plate to disengage the insert from the slot. The distance between the two sleeves is adjusted according to the size of the fabric, and the sleeves slide to the designated position on the slide rod surface. This causes the two guide rollers to rotate in contact with both sides of the fabric. The fabric is guided by the concave design of the guide rollers. After the sleeves are slid to the designated position, the elastic plate rebounds, causing the insert to insert into the slot and fix the position of the sleeves. This allows control of the fabric flow direction. At the same time, the concave design of the guide rollers allows the fabric to be placed inside, effectively preventing the fabric from curling.

[0015] In this invention, when the fabric enters the clamping area between the second and first rollers, the rotating plate rotates downwards on the surface of the extension rod due to its own gravity, causing the brush at the bottom of the rotating plate to come into contact with the fabric discharged from the first roller. During the operation, the fabric is brushed by the brush, thereby reducing the dust and impurities attached to the fabric, ensuring the cleanliness of the fabric, and preventing impurities from affecting the quality of subsequent printing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 For this utility model Figure 1 Enlarged view of the structure at point A in the image;

[0018] Figure 3This is a cross-sectional view of the present invention.

[0019] Figure 4 For this utility model Figure 3 Enlarged view of the structure at point B in the image;

[0020] Figure 5 This is a schematic diagram of the brush structure of this utility model;

[0021] Figure 6 This is a cross-sectional view of the cross groove structure of this utility model.

[0022] Legend: 1. Mounting shell; 2. Bracket; 3. First roller; 4. Slide bar; 5. Slot; 6. Shell; 7. L-shaped rod; 8. Guide roller shaft; 9. Elastic sheet; 10. Pull rod; 11. Insert block; 12. Groove; 13. Slider; 14. Circular arc slope; 15. Cross slide groove; 16. Cross slide plate; 17. Nut block; 18. Push rod; 19. First spring; 20. Extension rod; 21. Turning plate; 22. Brush; 23. Second spring; 24. Second roller. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0024] Reference Figure 1 - Figure 4 As shown, this utility model provides a technical solution: a fabric centering device for a printing machine, including a mounting shell 1, with brackets 2 fixedly connected to both ends of the bottom of the mounting shell 1, a first roller 3 installed inside the mounting shell 1, a sliding rod 4 fixedly connected to the front end of the mounting shell 1, several slots 5 opened at the front end of the sliding rod 4, a sleeve 6 slidably connected to the surface of the sliding rod 4, an L-shaped rod 7 fixedly connected to the top of the sleeve 6, a guide roller shaft 8 rotatably connected to the bottom of the L-shaped rod 7 via a rotating shaft, an elastic piece 9 fixedly connected to one side of the sleeve 6, a pull rod 10 fixedly connected to one side of the elastic piece 9, and an insert block 11 fixedly connected to the other side of the elastic piece 9. The device allows the operator to center the fabric... The material passes through the mounting shell 1 and is placed on the surface of the first roller 3. Then, the pull rod 10 is pulled forward to drive the elastic plate 9 so that the insert 11 is disengaged from the slot 5. Then, the distance between the two sleeves 6 is adjusted according to the size of the fabric and they slide on the surface of the slide rod 4 to the designated position, so that the two guide rollers 8 contact the two sides of the fabric and rotate. The fabric is guided by the concavity of the guide rollers 8. After the sleeves 6 are slid to the designated position, the elastic plate 9 rebounds and drives the insert 11 to insert into the slot 5, fixing the position of the sleeves 6, thereby controlling the flow direction of the fabric. At the same time, the concave design of the guide rollers 8 allows the fabric to be placed inside, effectively preventing the fabric from curling.

[0025] Reference Figure 1 and Figure 2 As shown in this embodiment: a groove 12 is provided on the top of the slide rod 4, and a slider 13 is fixedly connected to the inner wall of the sleeve 6. The surface of the slider 13 is slidably connected to the inner wall of the groove 12. When the sleeve 6 moves along the surface of the slide rod 4, the position of the sleeve 6 and the guide roller shaft 8 is restricted by the sliding connection between the groove 12 and the slider 13, preventing the sleeve 6 from rotating on the surface of the slide rod 4, so that the position of the guide roller shaft 8 is always in a horizontal position.

[0026] Reference Figure 3 and Figure 4 As shown in this embodiment: a curved surface 14 is provided on one side of the opening of the slot 5, and one side of the insert block 11 is inclined. The curved surface 14 allows the operator to push the housing 6 inward, so that when the housing 6 moves inward, it drives the elastic piece 9 and the insert block 11, allowing the insert block 11 to slide into or out of the slot 5 along the inclined surface 14. At the same time, the curved surface 14 is opened on one side, so that the insert block 11 can only slide out from one side of the slot 5 and cannot slide out in the opposite direction, making it easier for the operator to push the housing 6 to adjust its position.

[0027] Reference Figure 6 As shown in this embodiment: cross grooves 15 are provided on both sides of the mounting shell 1. A cross slide plate 16 is slidably connected to the inner wall of the cross groove 15. A second roller 24 is installed on the opposite side of the cross slide plate 16. Nut blocks 17 are fixedly connected to both ends of the top of the mounting shell 1. A push rod 18 is connected to the internal thread of the nut block 17. When the operator turns the push rod 18 downward, it pushes the cross slide plate 16 downward, causing the second roller 24 to move downward, so that the second roller 24 is close to the first roller 3. The second roller 24 and the first roller 3 squeeze the fabric in motion, roll the fabric flat, prevent the wrinkles generated when the fabric moves from affecting the subsequent printing process, improve the flatness of the fabric, and the integrity of the subsequent printing.

[0028] Reference Figure 6 As shown in this embodiment: a first spring 19 is fixedly connected to the bottom of the cross slide plate 16. The bottom of the first spring 19 is fixedly connected to the bottom of the inner wall of the cross slide plate 16. When the push rod 18 presses down on the cross slide plate 16, the cross slide plate 16 pushes the first spring 19 downward to compress and store force. When the worker releases the pressure of the second roller 24 and the first roller 3 on the fabric, the first spring 19 is no longer restrained by the downward pressure of the cross slide plate 16, so that the first spring 19 rebounds and pushes the cross slide plate 16 upward, so that the cross slide plate 16 and the second roller 24 bounce upward away from the first roller 3, widening the gap between the second roller 24 and the first roller 3, so that the worker can insert new fabric between the second roller 24 and the first roller 3.

[0029] Reference Figure 5 As shown in this embodiment: an extension rod 20 is fixedly connected to the rear end of the mounting shell 1, a rotating plate 21 is rotatably connected to the surface of the extension rod 20, and a brush 22 is fixedly connected to the bottom of the rotating plate 21. When the fabric enters the clamping area between the second roller 24 and the first roller 3, the rotating plate 21 rotates downward on the surface of the extension rod 20 due to its own gravity, so that the brush 22 at the bottom of the rotating plate 21 comes into contact with the fabric discharged from the first roller 3. During the operation of the fabric, the brush 22 brushes and washes the fabric, thereby reducing the dust and impurities attached to the fabric, ensuring the cleanliness of the fabric, and preventing impurities from affecting the quality of subsequent printing.

[0030] Reference Figure 5 As shown in this embodiment: both ends of the rear side of the mounting shell 1 are fixedly connected with second springs 23. The top of the second spring 23 is fixedly connected to the extension rod 20. By the pull of the second spring 23 on the rotating plate 21, the position of the rotating plate 21 and the brush 22 is always placed in the designated position. When subjected to the pulling force generated by the movement of the fabric, the elasticity of the second spring 23 can flexibly make the rotating plate 21 rotate on the surface of the extension rod 20 and move up and down with the fabric, adhering to the surface of the fabric to clean the fabric.

[0031] Working principle: The operator passes the fabric through the mounting shell 1 and places it on the surface of the first roller 3. Then, the pull rod 10 is pulled forward, causing the elastic plate 9 to disengage the insert 11 from the slot 5. The distance between the two sleeves 6 is adjusted according to the size of the fabric, and they slide on the surface of the slide rod 4 to a designated position. This causes the two guide rollers 8 to rotate, contacting both sides of the fabric. The concave design of the guide rollers 8 guides the fabric. After the sleeves 6 slide to the designated position, the elastic plate 9 rebounds, causing the insert 11 to insert into the slot 5, fixing the position of the sleeves 6. This controls the direction of fabric flow. Simultaneously, the concave design of the guide rollers 8 allows the fabric to be placed within them, effectively preventing fabric curling. As the sleeves 6 move along the surface of the slide rod 4... The sliding connection between the groove 12 and the slider 13 restricts the position of the sleeve 6 and the guide roller shaft 8, preventing the sleeve 6 from rotating on the surface of the slide bar 4 and ensuring that the guide roller shaft 8 remains in a horizontal position. The arc-shaped inclined surface 14 allows the operator to push the sleeve 6 inward, which in turn moves the elastic piece 9 and the insert 11. This allows the insert 11 to slide into or out of the slot 5 along the inclined surface 14. The single-sided opening of the arc-shaped inclined surface 14 ensures that the insert 11 can only slide out from one side of the slot 5, preventing it from sliding out in the opposite direction. This makes it easier for the operator to adjust the position of the sleeve 6. The operator can also push the cross slide plate 16 downward by turning the push rod 18 downward. The second roller 24 moves downward, bringing it closer to the first roller 3. This allows the second roller 24 and the first roller 3 to compress the moving fabric, flattening it and preventing wrinkles from affecting subsequent printing processes. This improves the smoothness of the fabric and the integrity of the subsequent printing. When the push rod 18 presses down on the cross slide plate 16, the cross slide plate 16 pushes the first spring 19 downward, compressing it to store energy. When the operator releases the pressure of the second roller 24 and the first roller 3 on the fabric, the first spring 19 is no longer restrained by the downward pressure of the cross slide plate 16. This allows the first spring 19 to rebound, pushing the cross slide plate 16 upward, causing the cross slide plate 16 and the second roller 24 to bounce upward away from the first roller 3, expanding... The gap between the second roller 24 and the first roller 3 allows the operator to insert new fabric between them. When the fabric enters the clamping area between the second roller 24 and the first roller 3, the rotating plate 21 rotates downwards under its own weight on the surface of the extension rod 20. This causes the brush 22 at the bottom of the rotating plate 21 to contact the fabric exiting from the first roller 3. During operation, the fabric is brushed by the brush 22, reducing dust and impurities adhering to the fabric, ensuring its cleanliness, and preventing impurities from affecting the quality of subsequent printing. The second spring 23 holds the rotating plate 21 in place, ensuring that the rotating plate 21 and the brush 22 remain in the designated positions. When subjected to the pulling force generated by the movement of the fabric...The second spring 23 allows the rotating plate 21 to rotate flexibly on the surface of the extension rod 20, moving up and down with the fabric and adhering to its surface for cleaning.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fabric centering device for a printing machine, comprising a mounting housing (1), characterized in that: The mounting shell (1) has brackets (2) fixedly connected to both ends of its bottom. A first roller (3) is installed inside the mounting shell (1). A slide rod (4) is fixedly connected to the front end of the mounting shell (1). Several slots (5) are opened at the front end of the slide rod (4). A sleeve (6) is slidably connected to the surface of the slide rod (4). An L-shaped rod (7) is fixedly connected to the top of the sleeve (6). A guide roller shaft (8) is rotatably connected to the bottom of the L-shaped rod (7) through a rotating shaft. An elastic piece (9) is fixedly connected to one side of the sleeve (6). A pull rod (10) is fixedly connected to one side of the elastic piece (9). An insert block (11) is fixedly connected to the other side of the elastic piece (9).

2. The fabric centering device for the printing machine according to claim 1, characterized in that: The top of the slide bar (4) is provided with a groove (12), and the inner wall of the sleeve (6) is fixedly connected with a slider (13), the surface of the slider (13) is slidably connected to the inner wall of the groove (12).

3. The fabric centering device for the printing machine according to claim 1, characterized in that: The slot (5) has an arc-shaped bevel (14) on one side of the opening, and the plug (11) has an inclined side.

4. The fabric centering device for the printing machine according to claim 1, characterized in that: Both sides of the mounting shell (1) are provided with cross grooves (15), and the inner wall of the cross grooves (15) is slidably connected with cross slide plates (16). The opposite side of the cross slide plates (16) is equipped with a second roller (24). Both ends of the top of the mounting shell (1) are fixedly connected with nut blocks (17), and the internal threads of the nut blocks (17) are connected with push rods (18).

5. The fabric centering device for the printing machine according to claim 4, characterized in that: The bottom of the cross slide plate (16) is fixedly connected to a first spring (19), and the bottom of the first spring (19) is fixedly connected to the bottom of the inner wall of the cross slide plate (16).

6. The fabric centering device for the printing machine according to claim 1, characterized in that: An extension rod (20) is fixedly connected to the rear end of the mounting shell (1), and a rotating plate (21) is rotatably connected to the surface of the extension rod (20). A brush (22) is fixedly connected to the bottom of the rotating plate (21).

7. The fabric centering device for a printing machine according to claim 6, characterized in that: The two ends of the rear side of the mounting shell (1) are fixedly connected to a second spring (23), and the top of the second spring (23) is fixedly connected to the extension rod (20).

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