Axial plate pulling mechanism of printing machine

Abstract

The axial plate pulling mechanism comprises a storage cylinder, mounting plates are symmetrically arranged at the two ends of the storage cylinder, an extension assembly is arranged in the storage cylinder, one end of the extension assembly penetrates through the storage cylinder and is connected with the inner side of one end of a printing cylinder, and the other end of the printing cylinder is connected with one side of a fixed connecting piece. And meanwhile, the top of the fixed connecting piece is connected with a ball nut arranged on a ball screw through an axial connecting base, and one end of the ball screw penetrates through the mounting base to be connected with the output end of a driving motor. According to the axial plate pulling mechanism of the printing machine, the driving motor drives the ball screw to rotate, so that the ball nut on the ball screw drives the axial connecting base to transversely and axially move, then one end of the printing cylinder moves under the action of the axial connecting base through the fixed connecting piece, the axial position of the printing cylinder is conveniently changed through the operation, and the printing efficiency is improved. Therefore, the printing position is changed, the accuracy of the overprinting position between the color cells is ensured, and the use practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field related to printing plate drawing of printing machines, in particular to an axial plate drawing mechanism of a printing machine. Background Art

[0002] A printing press is a machine for printing text and images. Modern printing presses are generally composed of mechanisms such as plate mounting, inking, embossing, and paper feeding (including folding). Its working principle is: first, the text and image to be printed are made into a printing plate, which is then mounted on a printing press. Then, ink is applied to the places on the printing plate where the text and image are, either manually or by a printing press. Then, the ink is directly or indirectly transferred to paper or other substrates (such as textiles, metal plates, plastics, leather, wood boards, glass, and ceramics), thereby replicating a printed product identical to the printing plate. The invention and development of the printing press has played an important role in the spread of human civilization and culture.

[0003] Due to the errors caused by plate making, punching, plate mounting and other reasons during the printing process of each printing color group of the printing machine, the patterns printed on the paper by each color group may not be accurately registered. At this time, the plate pulling mechanism is needed to adjust the position of the printing plate to ensure accurate registration between the color groups. In view of the above problems, the existing equipment needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to provide an axial plate pulling mechanism for a printing press, so as to solve the problem mentioned in the background art that due to the errors caused by plate making, punching, plate mounting and other reasons during the printing process of each printing color group of the printing press, the patterns printed on the paper by each color group may not be accurately overprinted. In this case, the plate pulling mechanism is required to adjust the position of the printing plate to ensure accurate overprinting between the color groups.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an axial plate pulling mechanism of a printing press, comprising a storage cylinder,

[0006] Mounting plates are symmetrically provided at both ends of the storage cylinder, and the mounting plates are connected to the printing machine body through fixing screws. At the same time, an extension component is provided inside the storage cylinder, one end of the extension component passes through the storage cylinder and is connected to the inner side of one end of the printing cylinder, and the other end of the printing cylinder is connected to one side of the fixed connecting piece, and at the same time, the top of the fixed connecting piece is connected to the ball nut provided on the ball screw through an axial connecting seat, one end of the ball screw passes through the mounting seat and is connected to the output end of the driving motor, and two mounting seats are provided, and at the same time, the tops of the two mounting seats are connected to the printing machine body.

[0007] Preferably, the extension assembly includes a movable sleeve, and the movable sleeve is provided with a movable through groove in the middle of one end inside the storage tube, and the movable through groove is symmetrically rotatably connected with a plate drawing gear near the side of the movable sleeve, and the two plate drawing gears are meshed with a fixed rack installed on the inner wall of the storage tube near the inner wall of the storage tube.

[0008] Preferably, the movable sleeve is slidably connected to a movable inner cylinder, and a movable push plate is installed in the middle of one side of the movable inner cylinder close to the movable through groove, and movable racks are symmetrically arranged on the upper and lower ends of the movable push plate, and the two movable racks are respectively meshed with the inner sides of the correspondingly arranged plate drawing gears, and a threaded column is arranged on the other side of the movable inner cylinder, and the threaded column is threadedly connected to the inner side of one end of the printing cylinder.

[0009] Preferably, a mounting sleeve is provided at the outer end of the movable sleeve close to the threaded column, and an elastic base is installed on the top of the mounting sleeve. At the same time, a rotating plate is rotatably connected to the inner side of the upper end of the elastic base. The rotating plate is located above one end of the movable inner cylinder and an electromagnetic column is installed on the top, and the bottom of the electromagnetic column is magnetically connected to the surface of the movable inner cylinder.

[0010] Preferably, the fixed connection member comprises a fixed block and a connecting rod, and the connecting rod arranged in the middle of one end of the fixed block is detachably connected to the inner side of one end of the printing cylinder.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the axial plate pulling mechanism of the printing press is

[0012] (1) In order to solve the problem of inaccurate overprinting of the patterns printed on paper by each color group due to errors caused by plate making, punching, plate loading, etc. during the printing process of each printing color group of the printing press. At this time, the plate pulling mechanism is required to adjust the position of the printing plate to ensure accurate overprinting between color groups. The present application drives the ball screw to rotate through a driving motor, so that the ball nut on the ball screw drives the axial connecting seat to move horizontally and axially, and then one end of the printing cylinder moves under the action of the axial connecting seat through a fixed connecting piece. This operation facilitates changing the axial position of the printing cylinder, thereby changing the printing position, ensuring the accuracy of the overprinting position between color groups, and improving the practicality of use;

[0013] (2) In order to solve the problem of inaccurate overprinting of the patterns printed on paper by each color group due to errors caused by plate making, punching, plate mounting, etc. during the printing process of each printing color group of the printing machine. At this time, the plate pulling mechanism is required to adjust the position of the printing plate to ensure accurate overprinting between color groups. The present application also improves the stability of the axial movement of the printing cylinder under the action of the ball screw by setting a storage cylinder, an extension component and an electromagnetic column. At the same time, when the printing cylinder is moved to the overprint position, under the action of the electromagnetic column, the extension component is not easily extended by external force, thereby improving the stability of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0015] Figure 2 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0016] Figure 3 For this utility model Figure 1 The enlarged structural diagram at B in the middle;

[0017] Figure 4 This is a front view structural schematic diagram of the utility model.

[0018] In the figure: 1. printing cylinder; 2. mounting plate; 3. storage cylinder; 4. movable sleeve; 5. movable through slot; 6. plate drawing gear; 7. fixed rack; 8. movable push plate; 9. movable rack; 10. movable inner cylinder; 11. threaded column; 12. mounting sleeve; 13. elastic base; 14. rotating plate; 15. electromagnetic column; 16. fixed connecting piece; 17. axial connecting seat; 18. ball screw; 19. driving motor. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4 The utility model provides a technical solution: a printing press axial plate pulling mechanism, according to Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, mounting plates 2 are symmetrically arranged at both ends of the storage cylinder 3, and the mounting plates 2 are connected to the printing machine body through fixing screws. At the same time, an extension component is arranged inside the storage cylinder 3, and one end of the extension component passes through the storage cylinder 3 and is connected to the inner side of one end of the printing cylinder 1.

[0021] Specifically, the extension component includes a movable sleeve 4, and the movable sleeve 4 is provided with a movable through groove 5 in the middle of one end inside the storage cylinder 3, and the movable through groove 5 is symmetrically rotatably connected to a plate drawing gear 6 on the side close to the movable sleeve 4, and the two plate drawing gears 6 are meshed with a fixed rack 7 installed on the inner wall of the storage cylinder 3 on the side close to the inner wall of the storage cylinder 3, and a movable inner cylinder 10 is slidably connected inside the movable sleeve 4, and a movable push plate 8 is installed in the middle of the side of the movable inner cylinder 10 close to the movable through groove 5, and movable racks 9 are symmetrically arranged on the upper and lower ends of the movable push plate 8, and the two movable racks 9 are respectively meshed with the inner sides of the correspondingly arranged plate drawing gears 6, and a threaded column 11 is arranged on the other side of the movable inner cylinder 10, and the threaded column 11 is threadedly connected to the inner side of one end of the printing cylinder 1, so as to improve the stability of the connection with the printing cylinder 1.

[0022] To further illustrate, a mounting sleeve 12 is provided at the outer end of the movable sleeve 4 close to the threaded column 11, and an elastic base 13 is installed on the top of the mounting sleeve 12. At the same time, a rotating plate 14 is rotatably connected to the inner side of the upper end of the elastic base 13. The rotating plate 14 is located above one end of the movable inner cylinder 10 and an electromagnetic column 15 is installed on the top. The bottom of the electromagnetic column 15 is magnetically connected to the surface of the movable inner cylinder 10, which is convenient for positioning the moving position of the movable inner cylinder 10 and improving the accuracy of the position of the movable inner cylinder 10 when it is used after being moved.

[0023] according to Figure 1 and Figure 4 As shown, the other end of the printing cylinder 1 is connected to one side of the fixed connecting member 16, and the fixed connecting member 16 includes a fixed block and a connecting rod, and the connecting rod arranged in the middle of one end of the fixed block is detachably connected to the inner side of one end of the printing cylinder 1, and at the same time, the top of the fixed connecting member 16 is connected to the ball nut arranged on the ball screw 18 through the axial connecting seat 17, and one end of the ball screw 18 passes through the mounting seat and is connected to the output end of the driving motor 19, and there are two mounting seats, and at the same time, the tops of the two mounting seats are connected to the printing machine body.

[0024] When in use, the ball screw 18 is driven to rotate by the driving motor 19, so that the axial connecting seat 17 connected to the ball nut drives the fixed connecting piece 16 and the printing cylinder 1 to move horizontally axially, and then the other end of the printing cylinder 1 drives the moving inner cylinder 10 to move outward inside the moving sleeve 4, so that the moving push plate 8 connected to the moving inner cylinder 10 drives the moving rack 9 to move, thereby driving the plate drawing gear 6 to rotate under the action of the moving rack 9, so that the plate drawing gear 6 and the fixed rack 7 mesh and move, which will make the moving sleeve 4 move synchronously to the outside of the storage cylinder 3, thereby pushing the other side of the printing cylinder 1, thereby completing the position adjustment of the printing cylinder 1, and after the adjustment is completed, the electromagnetic column 15 is energized, so that the electromagnetic column 15 is magnetically connected to the moving inner cylinder 10, and the moving inner cylinder 10 is positioned.

[0025] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the protection content of the present invention.

[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A printing press axial plate pulling mechanism, comprising a storage cylinder (3), characterized in that: The two ends of the storage cylinder (3) are symmetrically provided with mounting plates (2), and the mounting plates (2) are connected to the printing machine body by fixing screws. At the same time, an extension component is arranged inside the storage cylinder (3), one end of the extension component passes through the storage cylinder (3) and is connected to the inner side of one end of the printing cylinder (1), and the other end of the printing cylinder (1) is connected to one side of the fixed connecting member (16), and the top of the fixed connecting member (16) is connected to the ball nut arranged on the ball screw (18) through the axial connecting seat (17), one end of the ball screw (18) passes through the mounting seat and is connected to the output end of the driving motor (19), and two mounting seats are arranged, and the tops of the two mounting seats are connected to the printing machine body.

2. The axial plate pulling mechanism of a printing press according to claim 1, characterized in that: The extension assembly comprises a movable sleeve (4), and the movable sleeve (4) is provided with a movable through slot (5) in the middle of one end inside the storage tube (3), and the movable through slot (5) is symmetrically rotatably connected with a plate drawing gear (6) on one side close to the movable sleeve (4), and the two plate drawing gears (6) are meshedly connected with a fixed rack (7) installed on the inner wall of the storage tube (3) on one side close to the inner wall of the storage tube (3).

3. The axial plate pulling mechanism of a printing press according to claim 2, characterized in that: The movable sleeve (4) is slidably connected to a movable inner cylinder (10) inside, and a movable push plate (8) is installed in the middle of the movable inner cylinder (10) near the movable through groove (5), and movable racks (9) are symmetrically arranged at the upper and lower ends of the movable push plate (8), and the two movable racks (9) are respectively meshed with the inner sides of correspondingly arranged plate drawing gears (6), and a threaded column (11) is arranged on the other side of the movable inner cylinder (10), and the threaded column (11) is threadedly connected to the inner side of one end of the printing cylinder (1).

4. The axial plate pulling mechanism of a printing press as claimed in claim 2, characterized in that: The outer end of the movable sleeve (4) close to the threaded column (11) is provided with a mounting sleeve (12), and an elastic base (13) is installed on the top of the mounting sleeve (12). At the same time, a rotating plate (14) is rotatably connected to the inner side of the upper end of the elastic base (13). The rotating plate (14) is located above one end of the movable inner cylinder (10) and an electromagnetic column (15) is installed on the top, and the bottom of the electromagnetic column (15) is magnetically connected to the surface of the movable inner cylinder (10).

5. The axial plate pulling mechanism of a printing press according to claim 1, characterized in that: The fixed connection member (16) comprises a fixed block and a connection rod, and the connection rod arranged in the middle of one end of the fixed block is detachably connected to the inner side of one end of the printing cylinder (1).

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