Paper negative pressure dynamic adsorption device with independent forming cavity structure of ink-jet printer

Abstract

The utility model discloses a paper negative pressure dynamic adsorption device with an independent forming cavity structure of an ink-jet printer, which comprises a negative pressure cavity, one side of the negative pressure cavity is provided with a guide device, one side of the negative pressure cavity is connected with a speed regulation device, the speed regulation device comprises a fixed pipe, a rotating sleeve, a driven wheel, teeth, a connecting pipe, a mounting sleeve and an angle plate, the driven wheel is arranged in the fixed pipe, and the teeth are arranged on the rotating sleeve. The teeth are arranged at one end of the connecting pipe, the angle plate is fixed to one side of the driven wheel, a positioning mechanism is arranged on the outer side of the fixing pipe and comprises a positioning sleeve, a limiting sleeve, a movable spring, positioning grooves, a positioning rod, a receding hole, a limiting rod and a push spring, one end of the positioning rod is connected with the rotating sleeve through the movable spring, and the positioning grooves are formed in the outer side of the fixing pipe. According to the utility model, the forward movement of paper can be satisfied, the impact of the printing head can be prevented, the paper with various thicknesses can be processed, the printing quality is improved, and the stability is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of printer accessories, and more particularly to a paper negative pressure dynamic adsorption device with an independent molding cavity structure of an inkjet printer. Background Art

[0002] Current inkjet printing technology performs well in many application scenarios, but it still faces some challenges when dealing with uneven or thick paper. During the printing process, traditional inkjet printers require the print head to move very close to the paper surface, spraying ink while moving to form an image. However, this close-range operation may cause the print head to collide with the paper when the paper is uneven or thick. This collision may not only damage the print head, but also cause ink stains on the printed paper, thereby affecting the print quality and even causing the printed product to be scrapped.

[0003] To address these issues, some printers have begun to use negative pressure adsorption devices. This device applies negative pressure to the paper during the printing process, firmly adsorbing the paper to the printing platform to keep it flat. However, the design of existing negative pressure suction devices on the market is usually relatively simple, with a simple internal pipeline structure, making it difficult to flexibly adjust the negative pressure wind speed. Since the negative pressure intensity cannot be adjusted according to the thickness or material of the paper, this device may not provide sufficient adsorption force in actual use, especially when processing thicker or heavier paper, the effect is unsatisfactory.

[0004] In addition, although some devices attempt to adjust the negative pressure wind speed by adding adjustment mechanisms, the design of these mechanisms is often simple and lacks stability. When the device moves or is vibrated, these adjustment structures may loosen, causing the originally set wind speed to change. This change not only affects the adsorption effect of the paper, but may also cause unstable printing quality, thereby adversely affecting the normal operation of the printer. Utility Model Content

[0005] (1) Technical problems solved

[0006] In view of the problems existing in the prior art, the utility model provides a paper negative pressure dynamic adsorption device with an independent molding cavity structure of an inkjet printer to solve the technical problems mentioned in the background technology.

[0007] (2) Technical solution

[0008] In order to achieve the above object, the utility model provides following technical scheme: a paper negative pressure dynamic adsorption device of ink jet printer independent forming cavity structure, including negative pressure chamber, its characterized by: negative pressure chamber one side is provided with guiding device, negative pressure chamber one side is connected with speed regulation device, the speed regulation device includes fixed pipe, rotating sleeve, driven wheel, tooth, connecting pipe, mounting sleeve and angle plate, the fixed pipe fixed connection in negative pressure chamber one side, rotating sleeve both ends are connected with fixed pipe and mounting sleeve rotation respectively, the driven wheel rotation sets up in fixed pipe, tooth fixed setting in connecting pipe one end, connecting pipe and rotating sleeve inner wall are fixedly connected, angle plate fixed setting in driven wheel one side, fixed pipe outside is provided with positioning mechanism, the positioning mechanism includes positioning sleeve, limit sleeve, movable spring, positioning groove, positioning rod, let hole, limit rod and push spring, positioning sleeve is slidably sleeved in fixed pipe outside, limit sleeve is rotatably sleeved in fixed pipe outside, positioning rod one end is connected with rotating sleeve outer wall through movable spring, the other end of positioning rod is inserted into positioning groove, a plurality of positioning grooves are opened in the outside of the fixed pipe, the let hole is opened on the limit sleeve, the limit rod is fixedly connected on one side of the positioning sleeve, the push spring is movably sleeved on the outside of the limit rod, and one end of the push spring is connected with the limit sleeve in a contact manner.

[0009] The utility model further sets up, negative pressure chamber one side fixedly be equipped with the connecting sleeve, connecting sleeve one side be equipped with the anti -rotation rod, and anti -rotation rod one end pass through mounting sleeve outside with connecting sleeve through thread detachable connection.

[0010] The utility model further sets up, the angle plate is equipped with a plurality of flow -through holes.

[0011] The utility model further sets up, the limit sleeve, positioning sleeve and rotating sleeve outer wall all are equipped with the antiskid strip of connection, the setting of antiskid strip has promoted the operation hand feeling.

[0012] The utility model further sets up, the guiding device includes adsorption hole, guide table and guide claw, a plurality of adsorption holes are opened in negative pressure chamber one side, and adsorption hole and negative pressure chamber inside are communicated, guide table sets up in negative pressure chamber one side, a plurality of guide claws are fixedly connected in negative pressure chamber one side, and the setting of guiding device realizes the effective guidance of paper.

[0013] The utility model further sets up, the round angle structure design is adopted at the edge of adsorption hole, and the round angle structure of adsorption hole reduces the friction of paper and hole wall.

[0014] The utility model further sets up, the guide table one side is fixedly equipped with the guide block, and the edge of guide block is the round angle structure design.

[0015] The utility model is further configured such that a protrusion is fixedly provided on one side of the guide claw, and the configuration of the protrusion ensures the smooth delivery of the paper.

[0016] (3) Beneficial effects

[0017] Compared with the prior art, the present invention provides a paper negative pressure dynamic adsorption device with an independent molding cavity structure for an inkjet printer, which has the following beneficial effects:

[0018] 1. The guide device effectively guides and moves the paper through the design of components such as suction holes, guide platforms, and guide claws. The rounded corners of the suction holes reduce friction between the paper and the hole walls, reducing the risk of wear. The evenly distributed guide blocks on the guide platform can guide the paper forward and ensure smooth movement. The design of the guide claw, with a slightly upward protrusion on one side, ensures smooth paper delivery and effectively prevents collision between the print head and the paper.

[0019] 2. The speed regulating device realizes dynamic adjustment of the negative pressure air suction speed through the coordinated action of the fixed tube, rotating sleeve, driven wheel, teeth, connecting tube, mounting sleeve and angle plate. When the multiple flow holes on the angle plate and the angle plate rotate, the angle of the flow holes and the gap between the angle plate change, thereby changing the volume of air passing through, and then adjusting the negative pressure air suction speed. This design can flexibly adjust the wind speed to meet different printing needs.

[0020] 3. The positioning mechanism ensures that the speed regulating device can be stably maintained at the required position after adjustment through the precise coordination of the positioning sleeve, limiting sleeve, movable spring, positioning slot, positioning rod, clearance hole, limiting rod and push spring. The coordination of the positioning rod and the positioning slot limits the rotation of the rotating sleeve and the connecting pipe, preventing unexpected changes in wind speed after adjustment, and ensuring the stability and consistency of the printing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a paper negative pressure dynamic adsorption device with an independent molding cavity structure for an inkjet printer in the present invention;

[0022] Figure 2 This is a schematic structural diagram of the negative pressure chamber and the fixed tube portion of the present invention;

[0023] Figure 3 This is a schematic cross-sectional view of the speed regulating device and positioning mechanism of the present invention;

[0024] Figure 4 for Figure 3 Schematic diagram of the local enlarged structure at A in the middle;

[0025] Figure 5 for Figure 3 Schematic diagram of the local enlarged structure at point B in the middle.

[0026] In the figure: 1. Negative pressure chamber; 2. Fixed tube; 3. Rotating sleeve; 4. Driven wheel; 5. Teeth; 6. Connecting tube; 7. Mounting sleeve; 8. Angle plate; 9. Positioning sleeve; 10. Limiting sleeve; 11. Movable spring; 12. Positioning groove; 13. Positioning rod; 14. Clearance hole; 15. Limiting rod; 16. Push spring; 17. Connecting sleeve; 18. Anti-rotation rod; 19. Circulation hole; 20. Anti-slip strip; 21. Adsorption hole; 22. Guide platform; 23. Guide claw; 24. Guide block; 25. Bump. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0029] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually relative to the directions shown in the drawings, or relative to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually relative to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned direction words are not used to limit the present invention.

[0030] See also Figures 1-5, a paper negative pressure dynamic adsorption device with an independent molding cavity structure of an inkjet printer, including a negative pressure cavity 1, characterized in that: a guide device is provided on one side of the negative pressure cavity 1, and a speed regulating device is connected to one side of the negative pressure cavity 1, the speed regulating device includes a fixed tube 2, a rotating sleeve 3, a driven wheel 4, teeth 5, a connecting tube 6, a mounting sleeve 7 and an angle plate 8, the fixed tube 2 is fixedly connected to one side of the negative pressure cavity 1, the two ends of the rotating sleeve 3 are respectively rotatably connected to the fixed tube 2 and the mounting sleeve 7, the driven wheel 4 is rotatably set in the fixed tube 2, the teeth 5 are fixedly set at one end of the connecting tube 6, the connecting tube 6 is fixedly connected to the inner wall of the rotating sleeve 3, the angle plate 8 is fixedly set on one side of the driven wheel 4, and the outer side of the fixed tube 2 is provided There is a positioning mechanism, which includes a positioning sleeve 9, a limiting sleeve 10, a movable spring 11, a positioning groove 12, a positioning rod 13, a clearance hole 14, a limiting rod 15 and a push spring 16. The positioning sleeve 9 is slidably sleeved on the outside of the fixed tube 2, and the limiting sleeve 10 is rotatably sleeved on the outside of the fixed tube 2. One end of the positioning rod 13 is connected to the outer wall of the rotating sleeve 3 through the movable spring 11, and the other end of the positioning rod 13 is inserted into the positioning groove 12. Multiple positioning grooves 12 are opened on the outside of the fixed tube 2, and the clearance hole 14 is opened on the limiting sleeve 10. The limiting rod 15 is fixedly connected to one side of the positioning sleeve 9, and the push spring 16 is movably sleeved on the outside of the limiting rod 15, and one end of the push spring 16 is in contact connection with the limiting sleeve 10.

[0031] A connecting sleeve 17 is fixedly provided on one side of the negative pressure chamber 1 , an anti-rotation rod 18 is connected to one side of the connecting sleeve 17 , and one end of the anti-rotation rod 18 passes through the outside of the mounting sleeve 7 and is detachably connected to the connecting sleeve 17 via a thread.

[0032] A plurality of flow holes 19 are formed on the corner plate 8 .

[0033] The outer walls of the limiting sleeve 10 , the positioning sleeve 9 and the rotating sleeve 3 are all connected with anti-slip strips 20 .

[0034] In this embodiment, when it is necessary to adjust the suction speed of the negative pressure wind, first rotate the limit sleeve 10 so that the limit sleeve 10 drives the clearance hole 14 to move. When the clearance hole 14 moves to the position corresponding to the limit rod 15, push the positioning sleeve 9 so that the positioning sleeve 9 drives the limit rod 15 to slide, so that the limit rod 15 passes through the clearance hole 14. At the same time, the positioning sleeve 9 will cooperate with the limit sleeve 10 to squeeze the push spring 16 set on the outside of the limit rod 15. When the push spring 16 is squeezed to the limit, the outside of the positioning rod 13 loses its limit, and then the rotating sleeve 3 is rotated, and the rotating sleeve 3 will Drive the positioning rod 13 set on the side wall to rotate, and then the side wall of the positioning groove 12 will squeeze one end of the positioning rod 13. Due to the rounded corners at the edge of the positioning groove 12 and the end of the positioning rod 13, one end of the positioning rod 13 will slide out of the positioning groove 12, and the other end of the positioning rod 13 will drive the movable spring 11 to stretch. At the same time, the rotating sleeve 3 will drive the connecting pipe 6 connected to the inner wall to rotate, and then the connecting pipe 6 will drive the teeth 5 set at one end to rotate, and then the teeth 5 will drive each driven wheel 4 with it to rotate, and then the driven wheel 4 will drive the angle plate 8 set on one side to rotate. The angle of the angle plate 8 is tilted and the multiple flow holes 19 opened on the top are tilted, and then the gap between the angle plates 8 will change. At the same time, the angle of the flow holes 19 will change, so that the volume of air passing through will change, thereby changing the suction speed of the negative pressure wind. After the adjustment is appropriate, stop rotating the rotating sleeve 3, and make the active spring 11 drive the positioning rod 13 to reset, so that one end of the positioning rod 13 is inserted into the corresponding positioning groove 12, and then release the positioning sleeve 9. The push spring 16 will push the positioning sleeve 9 to slide and reset, and then the positioning sleeve 9 will drive the limit rod 1 connected at one end. 5 is slidingly reset. When the push spring 16 is completely reset, the limiting sleeve 10 is rotated again, so that the limiting sleeve 10 drives the giving hole 14 to move to a position that does not correspond to the limiting rod 15. Then the limiting rod 15 will limit the positioning sleeve 9 to prevent the positioning sleeve 9 from sliding. Then the inner wall of the positioning sleeve 9 will limit the outer end of the positioning rod 13 to prevent the positioning rod 13 from moving. Then the positioning rod 13 will cooperate with the positioning groove 12 to limit the rotating sleeve 3 to prevent the rotating sleeve 3 and the connecting pipe 6 from rotating, thereby ensuring the stability of the flow rate after adjustment and preventing the adjusted wind speed from changing easily.

[0035] See also Figure 1 and Figure 2 As an implementation method of the guide device: the guide device includes an adsorption hole 21, a guide platform 22 and a guide claw 23, multiple adsorption holes 21 are opened on one side of the negative pressure chamber 1, and the adsorption holes 21 are connected to the inside of the negative pressure chamber 1, the guide platform 22 is set on one side of the negative pressure chamber 1, and multiple guide claws 23 are fixedly connected to one side of the negative pressure chamber 1.

[0036] The edges of the adsorption holes 21 are designed with rounded corners.

[0037] A guide block 24 is fixedly provided on one side of the guide platform 22 , and the edge of the guide block 24 is designed with a rounded corner structure.

[0038] A protrusion 25 is fixedly provided on one side of the guide claw 23 .

[0039] More specifically, the negative pressure chamber 1 is formed by 3D modeling and integrated printing to achieve a seamless design to prevent air leakage. A plurality of evenly distributed guide blocks 24 are fixedly connected to the guide platform 22 on one side to guide the paper to move forward. By setting a plurality of adsorption holes 21, a negative pressure is formed between the paper and the negative pressure chamber 1. The edges of the adsorption holes 21 are designed with rounded corners to reduce the friction between the paper and the hole wall. The tops of the two negative pressure chambers 1 are provided with guide platforms 22 with an inclined angle to guide the paper forward, and the bottoms are fixedly connected with a plurality of evenly distributed guide claws 23 to feed the printed paper. The protrusion 25 on one side of the guide claw 23 is slightly tilted upward to facilitate guiding the movement of the paper, thereby ensuring the forward movement of the paper and preventing the print head from colliding. A mounting sleeve 7 is provided on the back of the negative pressure chamber 1 to connect to an external negative pressure fan. The mounting sleeve 7 is assembled with the external negative pressure fan assembly to form a complete negative pressure system.

[0040] In summary, when the whole device is in use or operation: when the suction speed of negative pressure wind needs to be adjusted, first rotate the limiting sleeve 10, so that the limiting sleeve 10 drives the let-out hole 14 to move, when the let-out hole 14 moves to the position corresponding to the limiting rod 15, push the positioning sleeve 9, so that the positioning sleeve 9 drives the limiting rod 15 to slide, so that the limiting rod 15 passes through the let-out hole 14, at the same time, the positioning sleeve 9 will cooperate with the limiting sleeve 10 to extrude the push spring 16 sleeved outside the limiting rod 15, when the push spring 16 is extruded to the limit, the outer side of the positioning rod 13 loses the limiting, then rotate the rotating sleeve 3, the rotating sleeve 3 will drive the positioning rod 13 arranged on the side wall to rotate, then the side wall of the positioning groove 12 will extrude one end of the positioning rod 13, due to the round corner treatment of the edge of the positioning groove 12 and the end of the positioning rod 13, then one end of the positioning rod 13 will slide out of the positioning groove 12, and the other end of the positioning rod 13 will drive the movable spring 11 to stretch, at the same time, the rotating sleeve 3 will drive the connecting pipe 6 connected to the inner wall to rotate, then the connecting pipe 6 will drive the gear 5 arranged at one end to rotate, then the gear 5 will drive each driven wheel 4 connected thereto to rotate, then the driven wheel 4 will drive the angle plate 8 arranged on one side to rotate, so that the angle of the angle plate 8 is inclined and drives the multiple flow-through holes 19 opened above to be inclined, then the gap between the angle plates 8 will change, at the same time, the angle of the flow-through hole 19 will change, so that the volume of air passing changes, so as to change the suction speed of negative pressure wind, after adjusting appropriately, stop rotating the rotating sleeve 3, and make the movable spring 11 drive the positioning rod 13 to reset, so that one end of the positioning rod 13 is inserted into the corresponding positioning groove 12, then release the positioning sleeve 9, the push spring 16 will push the positioning sleeve 9 to slide and reset, then the positioning sleeve 9 will drive the limiting rod 15 connected at one end to slide and reset, when the push spring 16 is completely reset, rotate the limiting sleeve 10 again, so that the limiting sleeve 10 drives the let-out hole 14 to move to the position not corresponding to the limiting rod 15, then the limiting rod 15 will limit the positioning sleeve 9, preventing the positioning sleeve 9 from sliding, then the inner wall of the positioning sleeve 9 will limit the outer end of the positioning rod 13, preventing the positioning rod 13 from moving, then the positioning rod 13 will cooperate with the positioning groove 12 to limit the rotating sleeve 3, preventing the rotating sleeve 3 and the connecting pipe 6 from rotating, so as to ensure the stability after the flow rate is adjusted, preventing the adjusted wind speed from easily changing.

[0041] The negative pressure chamber 1 is formed by 3D modeling and integrated printing to achieve a seamless design to prevent air leakage. A plurality of evenly distributed guide blocks 24 are fixedly connected to the guide platform 22 on one side to guide the paper to move forward. By setting a plurality of adsorption holes 21, a negative pressure is formed between the paper and the negative pressure chamber 1. The edges of the adsorption holes 21 are designed with rounded corners to reduce the friction between the paper and the hole wall. The tops of the two negative pressure chambers 1 are provided with guide platforms 22 with an inclined angle to guide the paper forward, while the bottoms are fixedly connected with a plurality of evenly distributed guide claws 23 to feed the printed paper. The protrusion 25 on one side of the guide claw 23 is slightly tilted upward to facilitate guiding the movement of the paper, thereby ensuring the forward movement of the paper and preventing the print head from colliding. An installation sleeve 7 is provided on the back of the negative pressure chamber 1 to connect to an external negative pressure fan. The installation sleeve 7 is assembled with the external negative pressure fan assembly to form a complete negative pressure system.

[0042] In all the schemes mentioned above, the connection between the two components can be selected according to actual conditions by welding, bolt and nut connection, bolt or screw connection or other well-known connection methods, which will not be listed here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A paper negative pressure dynamic adsorption device with an independent molding cavity structure for an inkjet printer, comprising a negative pressure cavity (1), characterized by: A guide device is provided on one side of the negative pressure chamber (1), and a speed regulating device is connected to one side of the negative pressure chamber (1). The speed regulating device comprises a fixed tube (2), a rotating sleeve (3), a driven wheel (4), teeth (5), a connecting tube (6), a mounting sleeve (7) and an angle plate (8). The fixed tube (2) is connected to one side of the negative pressure chamber (1), the driven wheel (4) is arranged in the fixed tube (2), the teeth (5) are arranged at one end of the connecting tube (6), the connecting tube (6) is connected to the rotating sleeve (3), the angle plate (8) is fixed to one side of the driven wheel (4), and a positioning mechanism is provided on the outside of the fixed tube (2). The positioning mechanism comprises a positioning sleeve ( 9), a limiting sleeve (10), a movable spring (11), a positioning groove (12), a positioning rod (13), a clearance hole (14), a limiting rod (15) and a push spring (16), wherein the positioning sleeve (9) is sleeved on the outside of the fixed tube (2), the limiting sleeve (10) is sleeved on the outside of the fixed tube (2), one end of the positioning rod (13) is connected to the rotating sleeve (3) through the movable spring (11), a plurality of positioning grooves (12) are provided on the outside of the fixed tube (2), the clearance hole (14) is provided on the limiting sleeve (10), the limiting rod (15) is connected to one side of the positioning sleeve (9), and the push spring (16) is sleeved on the outside of the limiting rod (15).

2. The paper negative pressure dynamic adsorption device with an independent molding cavity structure for an inkjet printer according to claim 1, characterized in that: A connecting sleeve (17) is fixedly provided on one side of the negative pressure chamber (1), an anti-rotation rod (18) is connected to one side of the connecting sleeve (17), and one end of the anti-rotation rod (18) passes through the outside of the mounting sleeve (7) and is detachably connected to the connecting sleeve (17) via a thread.

3. The paper negative pressure dynamic adsorption device with an independent molding cavity structure for an inkjet printer according to claim 2, characterized in that: The corner plate (8) is provided with a plurality of flow holes (19).

4. The paper negative pressure dynamic adsorption device with an independent molding cavity structure for an inkjet printer according to claim 1, characterized in that: The outer walls of the limiting sleeve (10), the positioning sleeve (9) and the rotating sleeve (3) are all connected with anti-slip strips (20).

5. A paper negative pressure dynamic adsorption device with an independent molding cavity structure for an inkjet printer according to any one of claims 1 to 4, characterized in that: The guide device comprises an adsorption hole (21), a guide platform (22) and a guide claw (23); a plurality of the adsorption holes (21) are opened on one side of the negative pressure chamber (1), and the adsorption holes (21) are connected to the inside of the negative pressure chamber (1); the guide platform (22) is arranged on one side of the negative pressure chamber (1), and a plurality of the guide claws (23) are fixedly connected to one side of the negative pressure chamber (1).

6. The paper negative pressure dynamic adsorption device with an independent molding cavity structure for an inkjet printer according to claim 5, characterized in that: The edges of the adsorption holes (21) are designed with rounded corners.

7. The paper negative pressure dynamic adsorption device with an independent molding cavity structure for an inkjet printer according to claim 5, characterized in that: A guide block (24) is fixedly provided on one side of the guide platform (22), and the edge of the guide block (24) is designed as a rounded structure.

8. The paper negative pressure dynamic adsorption device with an independent molding cavity structure for an inkjet printer according to claim 7, characterized in that: A protrusion (25) is fixedly provided on one side of the guide claw (23).

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