Printing roller shaft fixing clamp of printing machine

Abstract

The utility model discloses a plate roller shaft fixing clamp of a printing machine, and particularly relates to the printing machine, the plate roller shaft fixing clamp comprises a base cylinder, a core cylinder extending towards a port of the base cylinder is arranged at the axis of the base cylinder, and a positioning cone is arranged in the core cylinder in a sliding mode; a movable cylinder is arranged in the base cylinder in a sliding mode, a rectangular blocking spring is arranged between the movable cylinder and the base cylinder, and in the default state of the rectangular blocking spring, the length between the movable cylinder and the base cylinder is the largest. The gear set is used for enabling the moving cylinder to be in transmission connection with the positioning cone, and the moving cylinder and the positioning cone move synchronously. The device is simple in structure and convenient and fast to operate, the shaft end of the plate roller shaft is sleeved with the movable cylinder, the positioning cone is inserted into the boring hole in the shaft end of the plate roller shaft, and therefore locking and fixing of the shaft end of the plate roller shaft are achieved.

Description

Technical Field

[0001] The utility model relates to a printing press, in particular to a plate roller shaft fixing clamp of the printing press. Background Art

[0002] The purpose of the plate roller shaft is to first cover the surface of the plate roller engraved with images with ink, then the plate roller rotates with the ink, the unnecessary ink on the exposed part of the plate roller surface is scraped off by the scraper and flows into the ink basin for reuse, and finally the elastic surface of the rubber roller rolls the printed materials such as paper on the surface of the plate roller in sequence, and the ink of the image part is clearly transferred to the printed material.

[0003] Different printed materials require different mold-opening plate rollers, so new plate rollers need to be replaced according to customer needs. How to facilitate the replacement of plate rollers is expected to be well solved! Utility Model Content

[0004] The utility model aims to provide a plate roller shaft fixing fixture of a printing press, which is used to solve the above problems.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A plate roller shaft fixing fixture for a printing press comprises a base cylinder, a core cylinder extending toward a port of the base cylinder is arranged at the axis center of the base cylinder, and a positioning cone is slidably arranged in the core cylinder;

[0007] A moving cylinder is slidably arranged in the base cylinder, a rectangular resistance spring is arranged between the moving cylinder and the base cylinder, and in a default state of the rectangular resistance spring, the length between the moving cylinder and the base cylinder is the largest;

[0008] It also includes a gear set for connecting the moving cylinder with the positioning cone in a transmission manner, wherein:

[0009] The moving cylinder and the positioning cone move synchronously.

[0010] Preferably, the base tube is composed of a base with a semicircular structure and a cover with a semicircular structure, and the cover and the base are assembled into a cylindrical structure.

[0011] Preferably, a mounting frame is further included, and the base is assembled on the mounting frame.

[0012] Preferably, a limiting plate is provided in the core barrel, and a rectangular limiting piece is provided at the end of the positioning cone, and the rectangular limiting piece is slidably connected with a rectangular through hole provided on the limiting plate;

[0013] The rectangular limiting member is provided with a tooth plate which is transmission-connected with the gear set.

[0014] Preferably, the gear set includes a first circular gear, a second circular gear and a third circular gear which are meshed in sequence, the first circular gear is meshed with the tooth plate, and the three circular gears are meshed with the tooth piece provided on the moving cylinder.

[0015] Preferably, a carrier is fixedly provided on the rectangular limiting member, and a rotation-stop fork is slidably provided on the carrier and moves radially toward the moving cylinder;

[0016] The moving cylinder is provided with a wedge-shaped groove, the inner bottom of the wedge-shaped groove is lower than the horizontal plane of the toothed member, and the end of the anti-rotation fork is located between the wedge-shaped groove and the inner wall of the moving cylinder for sliding.

[0017] Preferably, a V-shaped elastic member is provided on the carrier to push the anti-rotation fork to contact the bottom of the wedge-shaped groove and the inner wall of the moving cylinder.

[0018] In the above technical scheme, the utility model provides a printing press plate roller shaft fixing clamp, which has the following beneficial effects: when replacing a new plate roller shaft, the movable cylinder is first moved and retracted into the base cylinder, and when the movable cylinder moves, the positioning cone is synchronously moved and retracted into the base cylinder under the transmission of the gear set, and when the end of the plate roller shaft is aligned with the inside of the movable cylinder, the movable cylinder is released and pushed by the rectangular resistance spring, so that the movable cylinder is sleeved on the end of the plate roller shaft, and the positioning cone is inserted into the boring hole at the end of the plate roller shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1 The overall structural diagram provided for the embodiment of the utility model;

[0021] Figure 2 A schematic diagram of an explosion structure provided for an embodiment of the utility model;

[0022] Figure 3 A schematic diagram of the structure of the base cylinder, the positioning cone and the moving cylinder provided in the embodiment of the utility model;

[0023] Figure 4 A schematic diagram of the cross-section structure of an embodiment of the utility model is provided.

[0024] Description of reference numerals:

[0025] 1. Base tube; 11. Base; 12. Cover; 2. Core tube; 21. Limit plate; 3. Positioning cone; 31. Rectangular limit member; 311. Tooth plate; 4. Moving tube; 41. Tooth member; 42. Wedge groove; 5. Rectangular stop spring; 6. Gear set; 61. First circular gear; 62. Second circular gear; 63. Third circular gear; 7. Mounting frame; 8. Carrier; 81. Anti-rotation fork; 9. V-shaped elastic member. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0027] like Figure 1-4 As shown, a plate roller shaft fixing fixture of a printing press comprises a base cylinder 1, a core cylinder 2 extending toward a port of the base cylinder 1 is arranged at the axis center of the base cylinder 1, and a positioning cone 3 is slidably arranged inside the core cylinder 2;

[0028] A moving cylinder 4 is slidably arranged in the base cylinder 1, and a rectangular resistance spring 5 is arranged between the moving cylinder 4 and the base cylinder 1. In the default state of the rectangular resistance spring 5, the length between the moving cylinder 4 and the base cylinder 1 is the largest;

[0029] It also includes a gear set 6 for drivingly connecting the moving cylinder 4 with the positioning cone 3, wherein:

[0030] The moving cylinder 4 and the positioning cone 3 move synchronously.

[0031] Specifically, the gear set 6 in the embodiment is composed of a first circular gear 61, a second circular gear 62 and a third circular gear 63 which are meshed and connected in sequence, and the first circular gear 61, the second circular gear 62 and the third circular gear 63 are rotatably arranged in sequence in a notch provided on the core barrel 2 and are arranged in an inclined manner. That is, the first circular gear 61 is located in the core barrel 2, and the third circular gear 63 partly extends to the outside of the notch and meshes with the toothed member 41 on the inner wall of the moving barrel 4.

[0032] Furthermore, a limiting plate 21 is provided in the core barrel 2 in the embodiment, and a rectangular limiting member 31 is provided at the end of the positioning cone 3. The rectangular limiting member 31 is slidably connected to the rectangular through hole opened on the limiting plate 21; and the tooth plate 311 provided on the rectangular limiting member 31 is meshed with the first circular gear 61.

[0033] In the above technology, when replacing a new plate roller shaft, first move the movable cylinder 4 and retract it into the base cylinder 1. When the movable cylinder 4 moves, the positioning cone 3 is synchronously moved and retracted into the base cylinder 1 under the transmission of the gear set 6. When the end of the plate roller shaft is aligned with the inside of the movable cylinder 4, release the movable cylinder 4 and push it under the rectangular stop spring 5, so that the movable cylinder 4 is sleeved on the end of the plate roller shaft, and the positioning cone 3 is inserted into the boring hole at the end of the plate roller shaft.

[0034] As an embodiment further provided by the present invention, the base tube 1 is composed of a semicircular base 11 and a semicircular cover 12, and the cover 12 and the base 11 are assembled into a cylindrical structure. The base 11 is assembled on the mounting frame 7.

[0035] As another embodiment further provided by the utility model, a carrier 8 is fixedly provided on the rectangular limit member 31, and a rotation-stop fork 81 is slidably provided on the carrier 8 and moves radially toward the moving cylinder 4; and a wedge-shaped groove 42 is provided on the moving cylinder 4, and the inner bottom of the wedge-shaped groove 42 is lower than the horizontal plane of the toothed member 41, and the end of the rotation-stop fork 81 is located between the wedge-shaped groove 42 and the inner wall of the moving cylinder 4 and slides.

[0036] Combination Figure 4 It can be seen that a V-shaped elastic member 9 is provided on the carrier 8 to push the anti-rotation fork 81 against the bottom of the wedge-shaped groove 42 and the inner wall of the moving cylinder 4 .

[0037] Specifically, when the moving cylinder 4 is moved and retracted into the base cylinder 1, during the movement, the anti-rotation fork 81 slides from the bottom of the wedge-shaped groove 42 along the inclined surface to the inner wall of the moving cylinder 4, and as it continues to move, the third circular gear 63 is meshed with the toothed member 41, and the positioning cone 3 can be moved synchronously with the moving cylinder 4. When the end of the plate roller shaft is aligned with the inside of the moving cylinder 4, the moving cylinder 4 is released and pushed by the rectangular stop spring 5, so that the moving cylinder 4 is sleeved on the end of the plate roller shaft. At this time, the moving cylinder 4 and the positioning cone 3 move synchronously until the anti-rotation fork 81 slides from the inclined surface of the wedge-shaped groove 42 to the bottom. At this time, the anti-rotation fork 81 moves up under the push of the V-shaped elastic member 9, and the anti-rotation fork 81 at this time contacts one of the faces of the hexahedron on the shaft end of the third circular gear 63, thereby achieving locking.

[0038] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A plate roller shaft fixing fixture for a printing press, characterized in that: It comprises a base tube (1), wherein a core tube (2) extending towards an end of the base tube (1) is arranged at the axis center of the base tube (1), and a positioning cone (3) is slidably arranged inside the core tube (2); A moving cylinder (4) is slidably disposed inside the base cylinder (1), a rectangular resistance spring (5) is disposed between the moving cylinder (4) and the base cylinder (1), and in a default state of the rectangular resistance spring (5), the length between the moving cylinder (4) and the base cylinder (1) is at a maximum; It also includes a gear set (6) for drivingly connecting the moving cylinder (4) and the positioning cone (3), wherein: The moving cylinder (4) and the positioning cone (3) move synchronously.

2. The plate roller shaft fixing fixture of a printing press according to claim 1, characterized in that: The base cylinder (1) is composed of a base (11) with a semicircular structure and a cover (12) with a semicircular structure, and the cover (12) and the base (11) are assembled into a cylindrical structure.

3. The plate roller shaft fixing fixture of a printing press according to claim 2, characterized in that: It also includes a mounting frame (7), and the base (11) is assembled on the mounting frame (7).

4. The plate roller shaft fixing fixture of a printing press according to claim 1, characterized in that: A limiting plate (21) is arranged in the core barrel (2), and a rectangular limiting piece (31) is arranged at the end of the positioning cone (3), and the rectangular limiting piece (31) is slidably connected to a rectangular through hole provided on the limiting plate (21); The rectangular limiting member (31) is provided with a tooth plate (311) which is transmission-connected to the gear set (6).

5. The plate roller shaft fixing fixture of a printing press according to claim 4, characterized in that: The gear set (6) comprises a first circular gear (61), a second circular gear (62) and a third circular gear (63) which are meshed in sequence, the first circular gear (61) meshing with the toothed plate (311), and the three circular gears (63) meshing with the toothed member (41) provided on the moving cylinder (4).

6. The plate roller shaft fixing fixture of a printing press according to claim 5, characterized in that: A carrier (8) is fixedly provided on the rectangular limiting member (31), and a rotation-stop fork (81) is slidably provided on the carrier (8) and moves radially toward the movable cylinder (4); The movable cylinder (4) is provided with a wedge-shaped groove (42), the inner bottom of the wedge-shaped groove (42) is lower than the horizontal plane of the toothed member (41), and the end of the anti-rotation fork (81) is located between the wedge-shaped groove (42) and the inner wall of the movable cylinder (4) for sliding.

7. The plate roller shaft fixing fixture of a printing press according to claim 6, characterized in that: The carrier (8) is provided with a V-shaped elastic member (9) for pushing the anti-rotation fork (81) to contact the bottom of the wedge-shaped groove (42) and the inner wall of the moving cylinder (4).

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