Adjustable paper pressing equipment for two-side offset paper printing

By designing an adjustable paper pressing device, the problems of positional shift and printing defects caused by size mismatch of offset paper during the printing process were solved, achieving stable paper pressing and conveying of offset paper of different thicknesses and widths, and improving printing quality.

CN223791178UActive Publication Date: 2026-01-13DENGZHOU LVXINYUAN PACKAGING PRINTING CO LTD
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Patent Information

Application Number
CN202520740354.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-18
Publication Date
2026-01-13
Estimated Expiration
2035-04-18

AI Technical Summary

Technical Problem

Existing offset printing equipment cannot be adjusted according to the size of the offset paper, which can easily lead to positional deviation, edge curling or folding during paper pressing or conveying, resulting in printing defects and uneven printing.

Method used

An adjustable paper pressing device is designed, which includes a conveying device, a paper pressing assembly, and an auxiliary paper pressing device. The device uses a dual-output shaft motor to drive pulleys and a conveyor belt, combined with adjustable paper pressing rollers and an auxiliary paper pressing device, to effectively press and convey double-sided offset paper of different thicknesses and widths.

Benefits of technology

It achieves stability of double-sided offset paper of different thicknesses and widths during the pressing and conveying process, avoiding positional shifts, edge curling or folding, and improving printing quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses adjustable paper pressing equipment for two-side offset paper printing, which comprises a base, a conveying device is fixedly connected inside the base, a paper pressing component is fixedly connected to the outer wall of the conveying device, and an auxiliary paper pressing device is rotatably connected to the inner wall of the base. According to the adjustable paper pressing equipment for two-side offset paper printing, through adjustment of the paper pressing assembly and the auxiliary paper pressing device, the equipment can press two-side offset paper with different thicknesses and widths, the application range of the equipment is widened, through the auxiliary paper pressing device, the equipment can press the two-side offset paper with different widths, and meanwhile the paper pressing efficiency is improved. The two-side offset paper is firmly clamped between the auxiliary paper pressing device and the conveying device, so that the two-side offset paper is difficult to deviate, curl or fold together in the paper pressing and conveying processes.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the printing field, concretely is adjustable paper pressing equipment for double adhesive paper printing. BACKGROUND

[0002] In the printing process of double adhesive paper, in order to improve the printing quality, a paper pressing equipment is needed before printing to press the double adhesive paper to ensure that it keeps flat, aligns or the tension is uniform in the printing process, and then it is sent into the printing equipment to print.

[0003] The existing paper pressing equipment for double adhesive paper printing cannot be adjusted according to the size of the double adhesive paper when in use, so that the existing equipment is prone to cause the double adhesive paper to deviate in the conveying process when pressing and conveying the smaller double adhesive paper, and the edges and corners of the double adhesive paper are prone to curl or fold together when pressing and conveying the larger double adhesive paper, thereby causing the printed matter to have printing defects or uneven printing. UTILITY MODEL CONTENT

[0004] (I) Technical problem solved

[0005] In view of the deficiencies of the prior art, the utility model provides an adjustable paper pressing equipment for double adhesive paper printing, which solves the problem that the existing equipment cannot be adjusted according to the size of the double adhesive paper, so that the double adhesive paper is prone to position deviation, edge and corner curling or folding together in the process of pressing or conveying, thereby causing the printed matter to have printing defects or uneven printing.

[0006] (II) Technical scheme

[0007] To achieve the above purpose, the utility model is realized by the following technical scheme: an adjustable paper pressing equipment for double adhesive paper printing, comprising: a base, a conveying device is fixedly connected inside the base, a paper pressing assembly is fixedly connected to the outer wall of the conveying device, an auxiliary paper pressing device is rotatably connected to the inner wall of the base, the conveying device comprises a double-output shaft motor, a first pulley is fixedly connected to the output end of the double-output shaft motor close to the base, a conveying belt is rollingly connected to the outer wall of the first pulley, a second pulley is rollingly connected to the inner wall of the conveying belt, through the mutual cooperation of the conveying device, the paper pressing assembly and the auxiliary paper pressing device, the double adhesive paper is difficult to displace, and the double adhesive paper of different thickness and width can be pressed.

[0008] Preferably, the output end of the double-output shaft motor close to the base penetrates the outer wall of the base, and the first pulley and the second pulley are both rotatably connected to the inner wall of the base, through the setting of the double-output shaft motor, the work of the conveying device becomes simple, and the paper pressing assembly can work synchronously with the conveying device.

[0009] Preferably, the paper pressing assembly comprises a third belt wheel, the outer wall of the third belt wheel is rollingly connected with a synchronous belt, the inner wall of the synchronous belt is rollingly connected with a fourth belt wheel, the fourth belt wheel is fixedly connected with a rotating shaft at one end close to the base, the outer wall of the rotating shaft is rotatably connected with a first sliding block, the inside of the first sliding block is threadedly connected with a one-way screw rod, the top end of the one-way screw rod is fixedly connected with a first handle, the outer wall of the rotating shaft is fixedly connected with a paper pressing roller, and the outer wall of the rotating shaft is rotatably connected with a second sliding block at the end away from the first sliding block, the height of the paper pressing roller can be adjusted by rotating the first handle, and the paper pressing assembly can press paper of different thicknesses.

[0010] Preferably, the one end of the third belt wheel close to the double-shaft motor is fixedly connected with the output end of the double-shaft motor, the first sliding block and the second sliding block are slidably connected with the inner wall of the base, the top end of the one-way screw rod penetrates through the base, and the bottom end of the one-way screw rod is rotatably connected with the inner wall of the base, so that the paper pressing assembly can work synchronously with the conveying device, and the work of the paper pressing assembly becomes simple.

[0011] Preferably, the auxiliary paper pressing device comprises a second handle, the outer wall of one side of the second handle close to the base is fixedly connected with a bidirectional screw rod, the outer wall of the bidirectional screw rod is threadedly connected with a moving plate, the outer wall of the bottom of the moving plate is fixedly connected with an extension rod, the outer part of the extension rod is sleeved with a spring, the outer end of the extension rod away from the moving plate is fixedly connected with a groove plate, the side of the groove plate away from the inner wall of the base is rotatably connected with a rotating roller, and the inner wall of the groove plate is rotatably connected with a roller, the distance between the rotating roller and the roller can be adjusted by rotating the second handle, and the device can press paper of different widths.

[0012] Preferably, the one end of the bidirectional screw rod away from the second handle penetrates through the base and is rotatably connected with the inner wall of the base, one end of the spring is fixedly connected with the outer wall of the bottom of the moving plate, and the other end of the spring is fixedly connected with the outer wall of the top of the groove plate, the double adhesive paper is pressed by the reaction force of the spring and the extension rod, and the double adhesive paper is difficult to displace while being pressed.

[0013] (Three)beneficial effects

[0014] The utility model provides a kind of adjustable paper pressing equipment for double adhesive paper printing.It has the following beneficial effects:

[0015] (One), the adjustable paper pressing equipment for double adhesive paper printing, through auxiliary paper pressing device, the device can press paper of different widths at the same time, and double adhesive paper is firmly clamped between auxiliary paper pressing device and conveying device, so that double adhesive paper is difficult to deviate, corner curl or fold together during pressing and transporting.

[0016] The adjustable paper pressing equipment for double adhesive paper printing can press double adhesive paper with different thickness and width through adjusting the paper pressing assembly and the auxiliary paper pressing device, thereby improving the application range of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the whole structure of the utility model;

[0018] Figure 2 It is a schematic diagram of part of the structure of the utility model;

[0019] Figure 3 It is the utility model Figure 2 It is an enlarged view of A in the middle;

[0020] Figure 4 It is a sectional view of the auxiliary paper pressing device of the utility model;

[0021] Figure 5 It is a schematic diagram of part of the structure of the auxiliary paper pressing device of the utility model.

[0022] In the drawing: 1, base; 2, conveying device; 20, double-output shaft motor; 21, first pulley; 22, conveying belt; 23, second pulley; 3, paper pressing assembly; 30, third pulley; 31, synchronous belt; 32, fourth pulley; 33, rotating shaft; 34, first sliding block; 35, first handle; 36, one-way screw rod; 37, paper pressing roller; 38, second sliding block; 4, auxiliary paper pressing device; 40, second handle; 41, bidirectional screw rod; 42, moving plate; 43, spring; 44, telescopic rod; 45, slot plate; 46, rotating roller; 47, roller. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Please refer to Figures 1-5 The utility model provides a technical scheme: adjustable paper pressing equipment for double adhesive paper printing, it includes: base 1, the inside fixed connection of base 1 has conveying device 2, the outer wall fixed connection of conveying device 2 has paper pressing assembly 3, the inner wall rotationally connected of base 1 has auxiliary paper pressing device 4, through adjusting paper pressing assembly 3, can press paper to double adhesive paper of different thickness, through adjusting auxiliary paper pressing device 4, can press paper to double adhesive paper of different width.

[0025] The conveying device 2 comprises a double-output shaft motor 20, the output end of the double-output shaft motor 20 is fixedly connected with a first pulley 21 close to the base 1, the outer wall of the first pulley 21 is rollingly connected with a conveying belt 22, the inner wall of the conveying belt 22 is rollingly connected with a second pulley 23, the output end of the double-output shaft motor 20 penetrates through the outer wall of the base 1 close to the base 1, the first pulley 21 and the second pulley 23 are both rotatably connected with the inner wall of the base 1, through the double-output shaft motor 20, the first pulley 21 is rotated, the conveying belt 22 with the second pulley 23 is rotated, and the conveying of the double adhesive paper is simple.

[0026] The paper pressing assembly 3 comprises a third pulley 30, the outer wall of the third pulley 30 is rollingly connected with a synchronous belt 31, the inner wall of the synchronous belt 31 is rollingly connected with a fourth pulley 32, the fourth pulley 32 is fixedly connected with a rotating shaft 33 close to one end of the base 1, the outer wall of the rotating shaft 33 is rotatably connected with a first sliding block 34, the inside of the first sliding block 34 is threadedly connected with a one-way screw 36, the top end of the one-way screw 36 is fixedly connected with a first handle 35, the outer wall of the rotating shaft 33 is fixedly connected with a paper pressing roller 37, the outer wall of the rotating shaft 33 is rotatably connected with a second sliding block 38 away from the first sliding block 34, the one end of the third pulley 30 close to the double-output shaft motor 20 is fixedly connected with the output end of the double-output shaft motor 20, the first sliding block 34 and the second sliding block 38 are both slidably connected with the inner wall of the base 1, the top end of the one-way screw 36 penetrates through the base 1, the bottom end of the one-way screw 36 is rotatably connected with the inner wall of the base 1, the rotation of the double-output shaft motor 20 also drives the third pulley 30 to rotate, the synchronous belt 31 with the fourth pulley 32 is rotated, the rotating shaft 33 with the paper pressing roller 37 is rotated, the conveying device 2 and the paper pressing assembly 3 can be synchronously operated, the rotation of the first handle 35 can drive the one-way screw 36 to rotate, the first sliding block 34 moves on the inner wall of the base 1, the rotating shaft 33 and the paper pressing roller 37 move, the second sliding block 38 moves on the inner wall of the base 1, the height of the paper pressing roller 37 can be adjusted through the rotation of the one-way screw 36, and the equipment can press the paper of the double adhesive paper with different heights.

[0027] The auxiliary paper pressing device 4 includes a second handle 40. A bidirectional screw 41 is fixedly connected to the outer wall of the second handle 40 near the base 1. A movable plate 42 is threadedly connected to the outer wall of the bidirectional screw 41. A telescopic rod 44 is fixedly connected to the outer wall of the bottom of the movable plate 42. A spring 43 is sleeved on the outside of the telescopic rod 44. A groove plate 45 is fixedly connected to the end of the telescopic rod 44 away from the movable plate 42. A rotating roller 46 is rotatably connected to the side of the groove plate 45 away from the inner wall of the base 1. A roller 47 is rotatably connected to the inner wall of the groove plate 45. The bidirectional screw 41 is located away from the second handle 40. One end of the handle 40 passes through the base 1 and is rotatably connected to the inner wall of the base 1. One end of the spring 43 is fixedly connected to the outer wall at the bottom of the moving plate 42, and the other end of the spring 43 is fixedly connected to the outer wall at the top of the slot plate 45. Rotating the second handle 40 causes the bidirectional screw 41 to rotate, causing the moving plate 42 to move to the middle position of the device, so that the slot plate 45 moves along with the rotating roller 46 and the roller 47. This allows the device to press paper of different widths of double-sided coated paper, while ensuring the smooth transport of the double-sided coated paper on the conveying device 2.

[0028] Working principle

[0029] In use, place the device in front of the printing equipment, adjust the paper pressing component 3 according to the thickness of the offset paper, then adjust the auxiliary paper pressing device 4 according to the width of the offset paper, and then start the conveying device 2. Place the offset paper on the surface of the conveying device 2. Through the paper pressing component 3 and the auxiliary paper pressing device 4, the offset paper can be smoothly conveyed to the printing equipment while pressing the paper.

[0030] Before pressing the offset paper, first turn the first handle 35 to rotate the one-way screw 36, causing the first slider 34 to move on the inner wall of the base 1. This causes the rotating shaft 33 and the pressing roller 37 to move accordingly, and the second slider 38 to move on the inner wall of the base 1 until the pressing roller 37 moves to the appropriate height for pressing the offset paper. Insert the limiting bar into the hole between the first handle 35 and the base 1 to prevent the rapid rotation of the pressing roller 37 from affecting the fixation of the one-way screw 36. Then turn the second handle 40 to rotate the two-way screw 41, causing the moving plate 42 to move towards the center of the equipment, so that the slot plate 45 rotates with the screw. The moving roller 46 and roller 47 move together until the distance between the rollers 47 is equal to the width of the offset paper. Then, the dual-output shaft motor 20 is started, causing the first pulley 21 to rotate. This causes the conveyor belt 22 to rotate along with the second pulley 23. At the same time, the rotation of the dual-output shaft motor 20 also drives the third pulley 30 to rotate, causing the synchronous belt 31 to rotate along with the fourth pulley 32. This causes the rotating shaft 33 to rotate along with the pressure roller 37. The device can adjust the pressure assembly 3 and the auxiliary pressure device 4 according to the thickness and width of the offset paper, which facilitates the pressing of offset paper of different thicknesses and widths and improves the applicability of the device.

[0031] When the double-sided coated paper needs to be pressed, it is placed on the surface of the conveyor belt 22, with both sides aligned with the rollers 47. As it moves across the conveyor belt 22, the friction between the coated paper and the rotating rollers 46 and 47 causes them to roll, lifting them and causing the telescopic rod 44 and spring 43 to tighten. This clamps the coated paper between the rotating rollers 46, 47, and the conveyor belt 22, preventing it from shifting during transport. Simultaneously, the friction between the coated paper and the rotating rollers 46 and 47... Under the friction of 47, the rotating roller 46 and roller 47 will continue to rotate, pushing the offset paper to continue moving. At this time, the reaction force of the spring 43 and the telescopic rod 44 will press the slot plate 45 downward, so that the rotating roller 46 and roller 47 will press the two sides of the offset paper. When the offset paper moves to the pressure roller 37, the pressure roller 37 will press the middle part of the offset paper. Under the action of the rotating roller 46, roller 47 and conveyor belt 22, the offset paper is smoothly transported to the printing equipment, avoiding the phenomenon of the offset paper curling or folding together during the pressing and transportation process.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable platen for double-sided paper printing, comprising: The base (1) is characterized in that the inside of the base (1) is fixedly connected with a conveying device (2), the outer wall of the conveying device (2) is fixedly connected with a paper pressing assembly (3), and the inner wall of the base (1) is rotatably connected with an auxiliary paper pressing device (4); The conveying device (2) comprises a double-output shaft motor (20), one output end of the double-output shaft motor (20) near the base (1) is fixedly connected with a first pulley (21), the outer wall of the first pulley (21) is rotatably connected with a conveying belt (22), and the inner wall of the conveying belt (22) is rotatably connected with a second pulley (23).

2. The adjustable paper-pressing device for double-coated paper printing according to claim 1, characterized in that: The output end of the double-output shaft motor (20) near the base (1) penetrates through the outer wall of the base (1), and the first pulley (21) and the second pulley (23) are both rotatably connected with the inner wall of the base (1).

3. The adjustable platen apparatus for printing on double-sided paper according to claim 2, wherein: The paper pressing assembly (3) comprises a third pulley (30), the outer wall of the third pulley (30) is rotatably connected with a synchronous belt (31), the inner wall of the synchronous belt (31) is rotatably connected with a fourth pulley (32), one end of the fourth pulley (32) near the base (1) is fixedly connected with a rotating shaft (33), the outer wall of the rotating shaft (33) is rotatably connected with a first sliding block (34), the inside of the first sliding block (34) is threadedly connected with a one-way screw rod (36), the top end of the one-way screw rod (36) is fixedly connected with a first handle (35), the outer wall of the rotating shaft (33) is fixedly connected with a paper pressing roller (37), and one end of the rotating shaft (33) away from the first sliding block (34) is rotatably connected with a second sliding block (38).

4. The adjustable paper-pressing device for double-coated paper printing according to claim 3, characterized in that: One end of the third pulley (30) near the double-output shaft motor (20) is fixedly connected with the output end of the double-output shaft motor (20), the first sliding block (34) and the second sliding block (38) are both slidably connected with the inner wall of the base (1), the top end of the one-way screw rod (36) penetrates through the base (1), and the bottom end of the one-way screw rod (36) is rotatably connected with the inner wall of the base (1).

5. The adjustable platen apparatus for printing on double-sided paper according to claim 1, wherein: The auxiliary paper pressing device (4) comprises a second handle (40), the outer wall of one side of the second handle (40) near the base (1) is fixedly connected with a bidirectional screw rod (41), the outer wall of the bidirectional screw rod (41) is threadedly connected with a moving plate (42), the outer wall of the bottom of the moving plate (42) is fixedly connected with a telescopic rod (44), the outer part of the telescopic rod (44) is sleeved with a spring (43), one end of the telescopic rod (44) away from the moving plate (42) is fixedly connected with a groove plate (45), one side of the groove plate (45) away from the inner wall of the base (1) is rotatably connected with a rotating roller (46), and the inner wall of the groove plate (45) is rotatably connected with a roller (47).

6. The adjustable platen apparatus for printing on double-sided paper according to claim 5, wherein: One end of the bidirectional screw rod (41) away from the second handle (40) penetrates through the base (1) and is rotatably connected with the inner wall of the base (1), one end of the spring (43) is fixedly connected with the outer wall of the bottom of the moving plate (42), and the other end of the spring (43) is fixedly connected with the outer wall of the top of the groove plate (45).