Crease-resistant device capable of being adjusted and used

Abstract

The utility model relates to the technical field of printing, and discloses an adjustable anti-wrinkle device which comprises a paper storage mechanism and a paper feeding mechanism, the paper storage mechanism comprises a shell, four round holes, four hydraulic rods, a pressing plate and a plurality of balls, and the paper feeding mechanism comprises a plurality of driven rollers. The multiple driven rollers are sequentially, evenly and rotationally arranged in the lower bottom face of the upper end of the shell and located between the inner walls of the two sides. According to the device, aiming at the problem of paper flatness in the printing process, a plurality of hydraulic rods are used in a linkage mode to be matched with a balancing weight, self-adjustment according to the residual pressure of printing paper is achieved, it is guaranteed that the paper makes close contact with a plurality of driven rollers, the device adapts to conveying of the paper with different thicknesses in real time, wrinkles are effectively avoided, the printing accuracy is improved, and waste is reduced; meanwhile, an infrared distance measuring sensor is matched to monitor the paper remaining amount, and a user is reminded to supplement paper in time.

Description

Technical Field

[0001] The utility model relates to the technical field of printing, in particular to an anti-wrinkle device which can be adjusted for use. Background Art

[0002] A printing press is a key piece of equipment for efficient printing. Through mechanisms such as plate mounting, inking, embossing, and paper feeding, it transforms the designed text and images into printing plates. Ink is then applied automatically or manually, and the plates are precisely transferred to paper or other substrates, producing a print that is identical to the original. Modern printing presses focus on improving printing efficiency and quality, avoiding wrinkles that can reduce print quality, and meeting market demand for exquisitely crafted prints. These machines utilize evolving technologies to ensure continuity and consistency throughout the printing process. High-precision plate mounting and embossing mechanisms guarantee the clarity and color saturation of printed products. As technology advances, printing presses continue to integrate innovative technologies and enhance performance to adapt to the ever-changing printing market and consumers' demand for high-quality printed products.

[0003] After searching, the existing patent (publication number: CN219155969U) discloses an "anti-wrinkle device for a printing press, which relates to the field of printing equipment, comprising a material storage box and a bottom plate, the bottom plate being slidably connected to the material storage box, an elastic component being provided between one side of the bottom plate and the material storage box, the material storage box being provided with a limit baffle on a side away from the elastic component, the elastic component being used to push the bottom plate close to the limit baffle, one side of the material storage box being provided with an opening, the material storage box being provided with a feeding component close to the opening, the feeding component being used to transport the paper in the material storage box to the printing position. The beneficial effects of this application are as follows: under the drive of the elastic component, the paper located on the bottom plate is pushed close to the limit baffle and abuts against the limit baffle, thereby fixing the paper between the bottom plate and the limit baffle, making it impossible for the paper to bend at will, thereby reducing the phenomenon of bending and wrinkling of the paper caused by external force factors."

[0004] During the development of this application, the inventors discovered the following problems with the prior art: While the aforementioned comparative patent provides an anti-wrinkle device for a printing press by providing a material storage box, a base plate, an elastic component, and a limit baffle, the spring has a limited service life. With increasing use, the spring's elasticity decreases, making it increasingly difficult for the base plate to press the paper upward, and the device's effectiveness gradually declines. Therefore, those skilled in the art have provided an adjustable anti-wrinkle device to address the problems raised in the aforementioned background art. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the existing technology and propose an adjustable anti-wrinkle device. The device aims to solve the problem of paper flatness during the printing process. It adopts multiple hydraulic rods in conjunction with a counterweight block to achieve self-adjustment according to the pressure of the remaining printing paper, ensure the close contact between the paper and the multiple driven rollers, adapt to the transmission of paper of different thicknesses in real time, effectively avoid wrinkles, improve printing accuracy, and reduce waste. At the same time, it cooperates with an infrared ranging sensor to monitor the remaining paper and promptly remind the user to replenish it.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an adjustable anti-wrinkle device, comprising a paper storage mechanism and a paper feeding mechanism, wherein the paper storage mechanism comprises an outer shell, four circular holes, four hydraulic rods, a pressure plate and a plurality of ball bearings, and the paper feeding mechanism comprises a plurality of driven rollers, which are rotated uniformly in sequence and arranged inside the lower bottom surface of the upper end of the outer shell and between the inner walls on both sides.

[0007] Furthermore, four pillars are fixedly provided at the lower end of the shell in an axially symmetrical manner, a base plate is fixedly provided at the lower ends of the four pillars, a hydraulic column is fixedly provided at the center of the upper end of the base plate, a counterweight block is fixedly provided at the center of the upper end of the hydraulic column, the lower ends of the four hydraulic rods are fixedly provided at the upper end of the base plate near the four corners in an axially symmetrical manner, and the four circular holes are respectively opened through the lower end of the shell near the four corners in an axially symmetrical manner.

[0008] Furthermore, the upper ends of the four hydraulic rods respectively pass through the four circular holes and are fixed to the lower end of the pressure plate near the four corners, and the multiple balls are evenly embedded and rotatably set on the two side surfaces of the pressure plate.

[0009] Furthermore, a door is rotatably provided at a position near one side of the rear end opening of the shell, a paper outlet is provided at an upper position at the front end of the shell, and a paper stop strip is fixedly provided at the lower end of the paper outlet.

[0010] Furthermore, a paper pickup roller is rotatably provided at the upper front end of the shell, and fixing frames are fixedly provided at the upper front ends of both sides of the shell. A rotating shaft frame is fixedly provided at the front ends of the two fixing frames, and both ends of the paper pickup roller are rotatably provided inside the two rotating shaft frames.

[0011] Furthermore, a motor is fixedly provided at the lower end of the fixing frame located on one side of the front end of the housing, and one end of the paper pickup roller is connected to the output end of the motor through a synchronous belt and a synchronous wheel.

[0012] Furthermore, an infrared ranging sensor is fixedly provided on the inner wall of one side of the shell, close to the upper front and below the pressure plate.

[0013] Furthermore, the plurality of balls are tangent to the inner wall of the shell respectively.

[0014] The utility model has the following beneficial effects:

[0015] 1. The utility model proposes an adjustable anti-wrinkle device. The device uses four interconnected hydraulic rods and hydraulic columns in conjunction with a counterweight block to evenly distribute the pressure of the pressure plate on the printing paper, so that the paper always keeps sliding tangentially with multiple driven rollers during the transmission process, effectively improving the efficiency and flatness of paper transmission, fully reducing the friction of the paper during the transmission process, and ensuring the flatness of the paper. As the weight of the printing paper above the pressure plate decreases, the counterweight block can use its own weight to press down the hydraulic column in time to extend the four hydraulic rods and drive the pressure plate to always push the upper end of the printing paper to the surface of multiple driven rollers. This automatic adjustment function enables the device to adapt to papers of different thicknesses, avoid wrinkles caused by uneven pressure on the paper, and effectively improve printing quality. At the same time, the hydraulic system does not experience performance degradation due to long-term use like spring elasticity, and has a longer service life.

[0016] 2. The utility model proposes an adjustable anti-wrinkle device. The device uses a suitable material to make the friction between the paper pickup roller and the printing paper greater than the friction between the papers. The device is used in conjunction with a paper stop strip to control the size of the paper outlet, ensuring that only a single sheet of paper is delivered from the paper outlet each time, avoiding the problem of multiple sheets of paper being delivered at the same time, improving the accuracy and quality of printing and reducing the waste caused by paper being carried when being delivered. At the same time, the infrared ranging sensor is used to detect the distance change to timely sense the change in the remaining printing paper in the shell and remind the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is an axonometric diagram of the present utility model;

[0018] Figure 2 This is an axonometric diagram of the present invention when viewed from the rear end;

[0019] Figure 3 This is an axonometric diagram of the present invention when the housing is not installed;

[0020] Figure 4 This is an axonometric cross-sectional diagram of the present invention;

[0021] Figure 5 This is an axonometric side sectional schematic diagram of the present invention;

[0022] Figure 6 It is a side view and side sectional schematic diagram of the utility model;

[0023] Figure 7 For the utility model Figure 6 An enlarged schematic diagram of the mechanism at point A.

[0024] Legend:

[0025] 1. Paper storage mechanism; 2. Paper feeding mechanism; 101. Casing; 102. Bottom plate; 103. Support pillar; 104. Round hole; 105. Hydraulic rod; 106. Hydraulic column; 107. Counterweight; 108. Door opening; 109. Pressure plate; 110. Ball bearing; 111. Infrared ranging sensor; 112. Paper stop strip; 201. Motor; 202. Fixed frame; 203. Rotating shaft frame; 204. Paper pickup roller; 205. Driven roller. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Reference Figure 1 、 Figure 5 and Figure 6 The present invention provides an embodiment of an adjustable anti-wrinkle device, comprising a paper storage mechanism 1 and a paper feeding mechanism 2. The paper storage mechanism 1 comprises a housing 101, four circular holes 104, four hydraulic rods 105, a pressure plate 109, and a plurality of balls 110. The paper feeding mechanism 2 comprises a plurality of driven rollers 205. The plurality of driven rollers 205 are rotated in sequence and evenly arranged on the lower bottom surface of the upper end of the housing 101, between the inner walls on both sides.

[0028] Specifically, the housing 101 provides a good storage location for printing paper. The multiple driven rollers 205 in the paper feeding mechanism 2 rotate well and evenly to the lower bottom surface of the upper end of the housing 101 in the paper storage mechanism 1. By sliding tangentially with the upper surface of each sheet of paper delivered, it is ensured that the paper remains flat and wrinkle-free during the paper discharge process. The housing 101 in the paper storage mechanism 1 provides a good installation location for each component in the paper feeding mechanism 2.

[0029] Reference Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7: Four pillars 103 are fixedly provided at the lower end of the housing 101 in an axially symmetrical manner, a base plate 102 is fixedly provided at the lower ends of the four pillars 103, a hydraulic column 106 is fixedly provided at the center of the upper end of the base plate 102, a counterweight 107 is fixedly provided at the center of the upper end of the hydraulic column 106, and four hydraulic rods 105 are fixedly provided at the lower end of the base plate 102 near the four corners in an axially symmetrical manner. Four circular holes 104 are respectively opened through the lower end of the housing 101 near the four corners in an axially symmetrical manner. The upper ends of the four hydraulic rods 105 are respectively passed through the four circular holes 104 and fixed to the lower end of the pressure plate 109 near the four corners;

[0030] A plurality of balls 110 are evenly embedded and rotatably arranged on both sides of the pressure plate 109. The plurality of balls 110 are tangent to the inner wall of the housing 101. A door 108 is rotatably arranged near one side of the rear end opening of the housing 101. A paper outlet is provided at the upper front end of the housing 101. A paper stopper 112 is fixedly arranged at the lower end of the paper outlet. An infrared ranging sensor 111 is fixedly arranged on the inner wall of one side of the housing 101, near the upper front and below the pressure plate 109.

[0031] Specifically, when in use, according to actual needs, the user opens the door 108 and presses down the pressure plate 109. The four hydraulic rods 105 are compressed and shortened, and the hydraulic column 106 connected to the four hydraulic rods 105 through the pipeline built into the bottom plate 102 is extended to push up the counterweight 107, so that the user can place an appropriate amount of printing paper on the upper end of the pressure plate 109. After the printing paper is placed on the upper end of the pressure plate 109, the user releases the pressure plate 109, and the counterweight 107 presses down the hydraulic column 106 to shorten it. The four hydraulic rods 105 connected to the hydraulic column 106 are extended, and the pressure plate 109 and the printing paper thereon are pushed up until they contact multiple driven rollers 205. Multiple balls 110 on both sides of the pressure plate 109 ensure that the pressure plate 109 slides up and down smoothly inside the housing 101.

[0032] As the paper feeding mechanism 2 delivers the top layer of paper to the printing equipment one by one, the weight of the printing paper on the pressure plate 109 gradually decreases. Under the action of the counterweight block 107, the hydraulic column 106 gradually shortens, and the four hydraulic rods 105 gradually extend and lift the pressure plate 109, ensuring that the top layer of printing paper always slides tangentially with the multiple driven rollers 205. When the pressure plate 109 gradually rises to a point where the infrared ranging sensor 111 cannot be blocked by the printing paper or the pressure plate 109, the infrared ranging sensor 111 detects that the distance is the distance between the inner walls on both sides of the shell 101 and remains unchanged, and sends a signal to the alarm fixedly set on the outer surface of the shell 101 and electrically connected to it to alarm, reminding the user that the printing paper is about to run out. The paper barrier strip 112 controls the size of the paper outlet well to ensure that only a single sheet of paper is delivered from the paper outlet at a time.

[0033] Reference Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 : A paper pickup roller 204 is rotatably provided at the upper front end of the housing 101, and fixed frames 202 are respectively fixedly provided at the upper front positions on both sides of the housing 101. A rotating shaft frame 203 is fixedly provided at the front ends of the two fixing frames 202. Both ends of the paper pickup roller 204 are rotatably provided inside the two rotating shaft frames 203. A motor 201 is fixedly provided at the lower end of the fixing frame 202 on one side at the upper front end of the housing 101, and one end of the paper pickup roller 204 is connected to the output end of the motor 201 through a synchronous belt and a synchronous wheel.

[0034] Specifically, the motor 201 drives the paper pickup roller 204 to rotate. Due to the material selection, the friction between the paper pickup roller 204 and the printing paper is greater than the friction between the printing paper sheets. Only one sheet of paper rotates with the paper pickup roller 204 at a time. During the transmission process, each sheet of paper always maintains a good tangential sliding with multiple driven rollers 205, and is sent out of the paper outlet smoothly and without wrinkles to the printing equipment.

[0035] Working principle: When in use, according to actual needs, the user opens the door 108 and presses down the pressure plate 109. The four hydraulic rods 105 are compressed and shortened, and the hydraulic column 106 connected to the four hydraulic rods 105 through the pipeline built into the bottom plate 102 extends to lift the counterweight block 107, so that the user can place an appropriate amount of printing paper on the upper end of the pressure plate 109. After the printing paper is placed on the upper end of the pressure plate 109, the user releases the pressure plate 109, and the counterweight block 107 presses down the hydraulic column 106 to shorten it. The four hydraulic rods 105 connected to the hydraulic column 106 extend, and lift the pressure plate 109 and the printing paper thereon until they contact multiple driven rollers 205. Multiple balls 110 on both sides of the pressure plate 109 ensure that the pressure plate 109 slides up and down smoothly inside the housing 101.

[0036] Secondly, as the paper feeding mechanism 2 delivers the top layer of paper to the printing equipment one by one, the weight of the printing paper on the pressure plate 109 gradually decreases. Under the action of the counterweight block 107, the hydraulic column 106 gradually shortens, and the four hydraulic rods 105 gradually extend and lift the pressure plate 109, ensuring that the top layer of printing paper always slides tangentially with the multiple driven rollers 205. When the pressure plate 109 gradually rises to a point where the infrared distance sensor 111 is no longer blocked by the printing paper or the pressure plate 109, the infrared distance sensor 111 detects that the distance is the distance between the inner walls of the housing 101 and remains unchanged, and sends a signal to the alarm fixedly arranged on the outer surface of the housing 101 and electrically connected to it, causing it to alarm, reminding the user that the printing paper is about to run out. The paper stopper 112 effectively controls the size of the paper outlet, ensuring that only a single sheet of paper is delivered from the paper outlet at a time.

[0037] Finally, the motor 201 drives the paper pickup roller 204 to rotate. Due to the material selection, the friction between the paper pickup roller 204 and the printing paper is greater than the friction between the printing paper sheets. Only one sheet of paper rotates with the paper pickup roller 204 at a time. During the transmission process, each sheet of paper always maintains a good tangential sliding with multiple driven rollers 205, and is sent out of the paper outlet smoothly and without wrinkles to the printing equipment.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An adjustable anti-wrinkle device comprising a paper storage mechanism (1) and a paper feeding mechanism (2), characterized in that: The paper storage mechanism (1) comprises a housing (101), four circular holes (104), four hydraulic rods (105), a pressure plate (109) and a plurality of balls (110); the paper feeding mechanism (2) comprises a plurality of driven rollers (205); the plurality of driven rollers (205) are rotated in sequence and evenly arranged inside the lower bottom surface of the upper end of the housing (101) and between the inner walls on both sides.

2. The adjustable anti-wrinkle device according to claim 1, characterized in that: The lower end of the housing (101) is fixedly provided with four pillars (103) in an axially symmetrical manner, the lower ends of the four pillars (103) are fixedly provided with a base plate (102), the center of the upper end of the base plate (102) is fixedly provided with a hydraulic column (106), the center of the upper end of the hydraulic column (106) is fixedly provided with a counterweight (107), the lower ends of the four hydraulic rods (105) are fixedly provided to the upper end of the base plate (102) near the four corners in an axially symmetrical manner, and the four circular holes (104) are respectively opened through the lower end of the housing (101) near the four corners in an axially symmetrical manner.

3. The adjustable anti-wrinkle device according to claim 1, characterized in that: The upper ends of the four hydraulic rods (105) respectively penetrate the four circular holes (104) and are fixedly arranged on the lower end of the pressure plate (109) near the four corners, and the multiple balls (110) are respectively and evenly embedded and rotatably arranged on the two side surfaces of the pressure plate (109).

4. The adjustable anti-wrinkle device according to claim 1, characterized in that: The rear end opening of the housing (101) is rotatably provided with an opening door (108) near one side, the front end of the housing (101) is provided with a paper outlet, and the lower end of the paper outlet is fixedly provided with a paper stopper (112).

5. The adjustable anti-wrinkle device according to claim 1, characterized in that: A paper pickup roller (204) is rotatably provided at an upper position of the front end of the housing (101), and fixed frames (202) are respectively fixedly provided at upper and front positions on both sides of the housing (101), and a rotating shaft frame (203) is fixedly provided at the front end of each of the two fixed frames (202), and both ends of the paper pickup roller (204) are rotatably provided inside the two rotating shaft frames (203).

6. The adjustable anti-wrinkle device according to claim 5, characterized in that: A motor (201) is fixedly provided at the lower end of the fixing frame (202) located on one side of the front end of the housing (101), and one end of the paper pickup roller (204) is connected to the output end of the motor (201) via a synchronous belt and a synchronous wheel.

7. The adjustable anti-wrinkle device according to claim 1, characterized in that: An infrared distance measuring sensor (111) is fixedly provided on an inner wall of one side of the housing (101) at a position slightly above and slightly forward and below the pressing plate (109).

8. The adjustable anti-wrinkle device according to claim 1, characterized in that: The plurality of rolling balls (110) are respectively tangent to the inner wall of the housing (101).

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