Paper carding equipment for printing machine

Abstract

The utility model relates to the technical field of printing paper carding equipment, and discloses paper carding equipment for a printing machine, which comprises a printing machine body, a conveying table is fixedly mounted on one side, close to the lower end, of the printing machine body, and square carding blocks which are symmetrical in pairs are fixedly mounted at the upper end of the end of one side of the conveying table. The center of one side of each square carding block is rotationally provided with a double-screw rod, the outer side walls of the double-screw rods are rotationally provided with threaded sleeves in a pairwise symmetrical mode, and the lower ends of the threaded sleeves are fixedly provided with limiting clamping plates. The width between the two limiting clamping plates is flexibly adjusted so as to adapt to feeding of paper of different sizes, the side edges of the paper are limited through a progress channel formed by the limiting clamping plates, and meanwhile, the two pressing rotating rollers which are symmetrical to each other and can be adjusted in a rolling mode are arranged, so that warpage generated by the paper can be pressed when the paper is carded and moved.

Description

Technical Field

[0001] This utility model relates to the technical field of paper combing equipment for printing, specifically a paper combing device for printing presses. Background Technology

[0002] A printing press is a machine used to produce printed materials. It is an indispensable piece of equipment in the modern printing industry. It generally consists of mechanisms such as plate mounting, inking, printing, and paper feeding. Its working principle is mainly to first make a printing plate of the text and images to be printed, mount it on the printing press, and then apply ink to the areas of the printing plate with text and images by hand or by the printing press. The ink is then directly or indirectly transferred to paper or other printing substrates to reproduce printed materials that are identical to the printing plate.

[0003] Paper sorting equipment for printing presses is specifically designed for use in printing presses. It is usually installed in the transport section of the printing press and is a device that sorts, arranges, and aligns the paper. The main purpose of this equipment is to ensure that the paper can be transported neatly and orderly during the printing process, and to efficiently complete the paper sorting, alignment, and transport tasks, thereby improving printing quality and efficiency.

[0004] In existing printing presses, paper feeding equipment feeds paper into the press to form printed patterns. However, because the spacing of the multi-layer paper feeding mechanism is fixed, it can only be used for feeding paper of a certain size. Different sizes of paper require different printing presses, resulting in waste. At the same time, the top layer of paper often warps during movement, causing the multi-layer paper to be uneven. Consequently, when the paper is fed into the printing press, the unevenness of the paper causes the printed pattern to shift, thus affecting the quality of the paper printing. Utility Model Content

[0005] To solve the above technical problems, the present invention provides the following technical solution: a paper combing device for a printing press, comprising a printing press body, a transmission table fixedly installed on one side of the printing press body near the lower end, two symmetrical square combing blocks fixedly installed on the upper end of one side of the transmission table, a double screw rod rotatably installed at the center of one side of the two square combing blocks, and threaded sleeves rotatably installed on the outer walls of the double screw rods in pairs, with a limit clamping plate fixedly installed at the lower end of the threaded sleeves;

[0006] Optionally, a conveyor belt is rotatably mounted on the inner side of the conveyor table, and a paper placement support plate is fixedly mounted on the inner side of the conveyor table near the conveyor belt.

[0007] Optionally, a rotating handle is fixedly installed on the upper end of the transfer table near the square comb block, and a double screw rod is fixedly installed on the inner side of the rotating handle.

[0008] Optionally, square paper pressing blocks are symmetrically installed in pairs through the center of the inner side of the transmission table. Each square paper pressing block has a placement chamber through its inner side, and a threaded screw is rotatably installed inside the placement chamber.

[0009] Optionally, the outer wall of the threaded screw is rotatably fitted with a number of symmetrical rotating sleeves in pairs at equal intervals. A non-circular positioning block is fixedly installed on one side of each rotating sleeve. A buffer column is installed at the center of the lower end of each non-circular positioning block. A clamping block is fixedly installed at the lower end of each buffer column. A pressing roller is rolled at the center of the inner side of each clamping block.

[0010] Optionally, a rotating motor is fixedly installed on one side of each of the two square paper pressing blocks, and a threaded screw is connected to the output end of the rotating motor.

[0011] Compared with the prior art, the present invention provides a paper combing device for printing presses, which has the following advantages:

[0012] 1. By setting two mutually symmetrical rotating and adjustable limit clamping plates, the width between the two limit clamping plates can be flexibly adjusted by rotating the handle to accommodate paper feeding of different sizes. The paper feeding channel formed by the limit clamping plates limits the side of the paper, thereby ensuring that the paper will not be skewed during the paper sorting and conveying process, and further reducing the cost of the equipment.

[0013] 2. By setting two mutually symmetrical, rollable, adjustable pressing rollers, the warping of the paper can be pressed down when the paper is combed, which avoids the printing pattern from shifting due to unevenness of the paper when it is fed into the printing press, thus affecting the printing quality and further improving the working efficiency of the equipment. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a first-view schematic diagram of the printing press body structure of this utility model;

[0016] Figure 2 This is a second-view schematic diagram of the printing press body structure of this utility model;

[0017] Figure 3 This is an enlarged schematic diagram of the square paper-pressing block structure of this utility model;

[0018] Figure 4 For practical purposes Figure 3 A magnified view of part A in the diagram.

[0019] The labels in the diagram represent: 1. Printing press body; 2. Transfer table; 3. Double screw rod; 4. Threaded sleeve; 5. Limiting clamping plate; 6. Conveyor roller; 7. Paper placement support plate; 8. Rotating handle; 9. Square paper pressing block; 10. Placement chamber; 11. Threaded screw; 12. Rotating sleeve; 13. Irregularly shaped positioning block; 14. Buffer column; 15. Pressing roller; 16. Rotating motor. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0021] The present invention will be further described below with reference to the embodiments.

[0022] Example 1

[0023] Reference Figure 1-4 This is the first embodiment of the present invention, which provides a paper combing device for a printing press, including a printing press body 1. A transmission table 2 is fixedly installed on one side of the printing press body 1 near the lower end. Two symmetrical square combing blocks are fixedly installed on the upper end of one side of the transmission table 2. Two double screw rods 3 are rotatably installed at the center of one side of the two square combing blocks. Two threaded sleeves 4 are rotatably installed on the outer side walls of the double screw rods 3. A limit clamping plate 5 is fixedly installed at the lower end of the threaded sleeves 4.

[0024] A conveyor belt 6 is rotatably installed on the inner side of the conveyor table 2. A paper placement support plate 7 is fixedly installed on the inner side of the conveyor table 2 near the conveyor belt 6. A rotating handle 8 is fixedly installed on the upper end of the conveyor table 2 near the square combing block. A double screw rod 3 is fixedly installed on the inner side of the rotating handle 8.

[0025] Two square paper pressing blocks 9 are symmetrically installed through the center of the inner side of the transmission table 2. A placement chamber 10 is opened through the inner side of each square paper pressing block 9. A threaded screw 11 is rotatably installed inside the placement chamber 10. A rotating motor 16 is fixedly installed on one side of each of the two square paper pressing blocks 9. The output end of the rotating motor 16 is connected to the threaded screw 11.

[0026] When the paper combing equipment for the printing press is in use, the paper to be combed is first placed on the paper placement support plate 7. Then, according to the size of the paper to be combed, the rotating handle 8 is manually rotated, so that the rotating handle 8 drives the double screw rod 3 to rotate, thereby driving the two mutually symmetrical threaded sleeves 4 to rotate. Then, the two mutually symmetrical limiting clamping plates 5 are fixedly installed at the lower end of the threaded sleeves 4, so that the width between the two limiting clamping plates 5 can be flexibly adjusted to accommodate the feeding of different sizes of paper. Through the paper feeding channel formed by the limiting clamping plates 5, the side of the paper is limited, thereby ensuring that the paper will not be skewed during the combing and conveying process, further reducing the cost of the equipment.

[0027] After the paper to be sorted is placed on the paper placement support plate 7, a drive cylinder is provided at the lower end of the placement support plate 7. The drive cylinder can be activated according to the thickness of the paper, so that the height of the paper on the placement support plate 7 can match the height of the conveyor table 2. A paper feed sensor is provided inside the placement support plate 7. When the paper is placed into the position of the paper feed sensor on the placement support plate 7, the sensor is triggered and generates an electrical signal. This electrical signal is then transmitted to the control system of the printing press body 1 through the input and output port of the signal transmission module. Then, the microprocessor in the control system of the printing press body 1 issues an instruction to the received signal, so that the transmission system of the conveyor table 2 starts to work.

[0028] An adsorption structure is provided on one side of the two rotating sleeves 12 near the two rotating motors 16. The adsorption structure consists of an exhaust fan and an adsorption head installed at the output end of the exhaust fan. When the adsorption head is attached to the upper surface of the top layer of paper, the air in the space formed by the adsorption head and the paper is discharged by the exhaust fan, and the paper is adsorbed and fixed by negative pressure attraction.

[0029] Driven by the telescopic cylinder at the upper end of the irregular positioning block 13, the spacing between the adsorption structures can be adjusted according to the size of the two sheets of paper. Then, the drive cylinder at the lower end of the support plate 7 is activated, so that the uppermost sheet of paper comes into contact with the adsorption head in the adsorption structure and is thus adsorbed and fixed. Then, two rotating motors 16 are activated simultaneously, so that the first sheet of paper is adsorbed onto the conveyor table 2 under the drive of two mutually symmetrical threaded screws 11. Under the drive of the transmission system set inside the conveyor table 2, the paper is separated from the paper stack of the paper placement support plate 7 by the conveyor roller belt 6 and conveyed forward until it reaches the inside of the printing machine body 1 to form the required printing pattern on the paper.

[0030] Example 2

[0031] Reference Figure 1-4This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that: a plurality of symmetrical rotating sleeves 12 are evenly spaced on the outer side wall of the threaded screw 11. A non-circular positioning block 13 is fixedly installed on one side of each rotating sleeve 12. A buffer column 14 is installed at the lower center of each non-circular positioning block 13. A clamping block is fixedly installed at the lower end of each buffer column 14. A pressing roller 15 is rolled at the inner center of each clamping block.

[0032] When the paper combing equipment of the printing press uses the conveyor roller belt 6 to transport paper, the rotating motor 16 is started first. Under the drive of the rotating motor 16, the threaded screws 11 in the two square paper pressing blocks 9 at the center of the inner side of the conveyor table 2 rotate, thereby driving the rotation of several equally spaced rotating sleeves 12. One end of the irregular positioning block 13 is connected to a telescopic cylinder, which allows the pressing roller 15 to press paper of different sizes according to the drive of the telescopic cylinder. At the same time, the inner side of the buffer column 14 is provided with a vibration damping telescopic elastic mechanism, which is a cylindrical helical spring. This prevents the pressing roller 15 from pressing the paper too tightly during the pressing process, adapting to the pressing of paper of different thicknesses, so that the paper does not curl up. This avoids the situation where the printing pattern is offset due to the unevenness of the paper when it is fed into the printing press, thus affecting the printing quality and further improving the working efficiency of the equipment.

[0033] The remaining structure is the same as that in Example 1.

[0034] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A sheet combing apparatus for a printing press, characterized by: include The printing machine body has a transmission table fixedly installed on one side near the lower end. Two symmetrical square comb blocks are fixedly installed on the upper end of one side of the transmission station. Two double screw rods are rotatably installed at the center of one side of each of the two square comb blocks; The outer walls of the double screw rods are symmetrically fitted with threaded sleeves in pairs. A limit clamping plate is fixedly installed at the lower end of the threaded sleeve.

2. Paper combing device for a printing press according to claim 1, characterized in that: A conveyor belt is rotatably mounted on the inner side of the conveyor platform, and a paper placement support plate is fixedly mounted on the inner side of the conveyor platform near the conveyor belt.

3. Paper combing device for a printing press according to claim 2, characterized in that: A rotating handle is fixedly installed on the upper end of the transmission platform near the square comb block, and a double screw rod is fixedly installed on the inner side of the rotating handle.

4. The paper picking device for a printing press according to claim 2, characterized in that: Two square paper-pressing blocks are symmetrically installed through the center of the inner side of the transmission table. Each square paper-pressing block has a placement chamber through its inner side, and a threaded screw is rotatably installed inside the placement chamber.

5. Paper combing device for a printing press according to claim 4, characterized in that: The outer wall of the threaded screw is rotatably fitted with a number of symmetrical rotating sleeves at equal intervals. A shaped positioning block is fixedly installed on one side of each rotating sleeve. A buffer column is installed at the center of the lower end of each shaped positioning block. A clamping block is fixedly installed at the lower end of each buffer column. A pressing roller is rolled at the center of the inner side of each clamping block.

6. Paper combing device for a printing press according to claim 5, characterized in that: A rotating motor is fixedly installed on one side of each of the two square paper pressing blocks, and a threaded screw is connected to the output end of the rotating motor.

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