Axial adjustment mechanism of plate roller of book and periodical printing press

Abstract

The present invention belongs to the technical field of packaging machinery and equipment, and relates to an axial adjustment mechanism for a printing plate roller of a book and periodical printing press, comprising a printing plate roller, the left end of the printing plate roller passes through a left wallboard, and the right end of the printing plate roller passes through a right wallboard; the printing plate roller is respectively provided with bearings on the roller body in the inner hole of the left wallboard and the inner hole of the right wallboard, wherein a left eccentric sleeve is supported on the bearing in the inner hole of the left wallboard, and the axial limit of the left eccentric sleeve is set in the left wallboard; a right baffle is supported on the bearing in the inner hole of the right wallboard, and a right outer eccentric sleeve is sleeved on the outer side of the right baffle, and the right outer eccentric sleeve extends out of the right wallboard and is matched with the right inner eccentric sleeve, and the right inner eccentric sleeve is limited on the right wallboard through a right pressure plate, and the right outer eccentric sleeve and the right baffle are axially limited through the right baffle. The adjustment mechanism reduces the cumulative error caused by the assembly of multiple parts, has higher adjustment accuracy, and lower implementation cost.

Description

Technical Field

[0001] The invention belongs to the technical field of packaging machinery and equipment, and relates to an axial adjustment mechanism for a plate roller of a book and periodical printing press. Background Art

[0002] The existing axial movement mode of the plate roller of the axial adjustment mechanism of the book and periodical printing machine is that the plate roller and the eccentric sleeve move axially along the outer sleeve together. During the operation of the machine, the gap between the eccentric sleeve and the outer sleeve will become larger and larger, which will cause the machine to produce a lot of noise and vibration. If the eccentric sleeve is not replaced in time, unqualified products will appear, and other parts may even be damaged. Summary of the invention

[0003] In view of the above problems, the present invention provides an axial adjustment mechanism for a plate roller of a book and periodical printing press, which reduces the cumulative error caused by assembling multiple parts, has higher adjustment accuracy and lower implementation cost.

[0004] According to the technical solution of the present invention: an axial adjustment mechanism for a printing plate roller of a book and periodical printing press is characterized in that: it comprises a printing plate roller, the left end of the printing plate roller passes through the left wall panel, and the right end of the printing plate roller passes through the right wall panel; bearings are respectively installed on the roller body of the printing plate roller corresponding to the inner hole of the left wall panel and the inner hole of the right wall panel, wherein a left eccentric sleeve is supported and arranged on the bearing in the inner hole of the left wall panel, and the axial limit of the left eccentric sleeve is arranged in the left wall panel;

[0005] A right baffle is supported on the bearing in the inner hole of the right wall panel, and a right outer eccentric sleeve is sleeved on the outer side of the right baffle. The right outer eccentric sleeve extends out of the right wall panel and is matched with the right inner eccentric sleeve. The right inner eccentric sleeve is limited on the right wall panel by the right pressure plate, and the right outer eccentric sleeve and the right baffle are axially limited by the right baffle. The right side of the plate roller passes through the right wall panel, and a plane thrust bearing is installed on the roller body passing through the right wall panel. The outer ring of the plane thrust bearing supports the connecting disk, and the plane thrust bearing is axially limited by the right end cover, and the right end cover is tightly connected to the connecting disk; an adjusting shaft is formed at the right end of the plate roller, and the adjusting shaft passes through the inner hole of the mounting plate, and the adjusting shaft is driven to operate by the driving device.

[0006] As a further improvement of the present invention, the driving device includes a transmission gear installed on the adjusting shaft, the transmission gear is meshed with the transition gear, the transition gear is meshed with the driving gear, the driving gear is installed on the output shaft of the servo motor, and the servo motor is installed on the mounting plate.

[0007] As a further improvement of the present invention, an adjusting nut and an anti-backlash nut are provided on the shaft diameter of the adjusting shaft extending outward from the mounting plate, wherein the adjusting nut is fixedly connected to the mounting plate, and the anti-backlash nut is fixedly connected to the adjusting nut.

[0008] As a further improvement of the present invention, the left eccentric sleeve is axially limited and fixed corresponding to the outer side of the left wall panel by a left baffle and a left pressure plate, and the left eccentric sleeve is limited corresponding to the inner side of the left wall panel by a left positioning plate.

[0009] As a further improvement of the present invention, the left end surface of the connecting disk abuts against an adjacent bearing.

[0010] As a further improvement of the present invention, the bearing is a double-row tapered roller bearing.

[0011] The technical effect of the present invention is that the product structure of the present invention is reasonable and ingenious, the eccentric sleeve is arranged in the wallboard and remains fixed; the purpose of axial adjustment is achieved by the axial movement of the plate roller and the bearing in the eccentric sleeve. The patent structure of the present invention is simple, the cumulative error caused by the assembly of multiple parts is reduced, the adjustment accuracy is higher, and the implementation cost is also lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the present invention. DETAILED DESCRIPTION

[0013] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0014] Figure 1 It includes a left pressure plate 1, a left baffle plate 2, a left eccentric sleeve 3, a double-row tapered roller bearing 4, a plate roller 5, a right outer eccentric sleeve 6, a right pressure plate 7, a right inner eccentric sleeve 8, a right baffle plate 9, a connecting plate 10, a plane thrust bearing 11, an adjusting shaft 12, a transmission gear 13, a transition gear 14, a driving gear 15, an adjusting nut 16, an anti-backlash nut 17, a servo motor 18, a right end cover 19, a mounting plate 20, etc.

[0015] like Figure 1 As shown, the present invention is an axial adjustment mechanism for a plate roller of a book printing press, comprising a plate roller 5, the left end of the plate roller 5 passes through the left wall panel, and the right end of the plate roller 5 passes through the right wall panel; bearings 4 are respectively installed on the roller body of the plate roller 5 corresponding to the inner holes of the left wall panel and the inner holes of the right wall panel, wherein a left eccentric sleeve 3 is supported on the bearing 4 in the inner hole of the left wall panel, and the left eccentric sleeve 3 is axially limited in the left wall panel. In specific practice, the bearing 4 is preferably a double-row tapered roller bearing.

[0016] A right baffle plate 9 is supported on the bearing in the inner hole of the right wall panel, and a right outer eccentric sleeve 6 is sleeved on the outer side of the right baffle plate 9. The right outer eccentric sleeve 6 extends out of the right wall panel and is connected to the right inner eccentric sleeve 8. The right inner eccentric sleeve 8 is limited on the right wall panel by the right pressure plate 7. The right outer eccentric sleeve 6 and the right baffle plate 9 are axially limited by the right baffle plate. The right side of the plate roller 5 passes through the right wall panel, and a plane thrust bearing 11 is installed on the roller body passing through the right wall panel. The outer ring of the plane thrust bearing 11 supports the connecting disk 10, and the plane thrust bearing 11 is axially limited by the right end cover 19. The right end cover 19 is tightly connected to the connecting disk 10, and the left end face of the connecting disk 10 abuts against the adjacent bearing 4 to form an axial limit for the corresponding bearing 4; an adjusting shaft 12 is formed on the right end of the plate roller 5, and the adjusting shaft 12 passes through the inner hole of the mounting plate 20, and the adjusting shaft 12 is driven to operate by the driving device.

[0017] The driving device includes a transmission gear 13 mounted on the adjustment shaft 12 , the transmission gear 13 meshes with a transition gear 14 , the transition gear 14 meshes with a driving gear 15 , the driving gear 15 is mounted on the output shaft of a servo motor 18 , and the servo motor 18 is mounted on a mounting plate 20 .

[0018] An adjusting nut 16 and an anti-backlash nut 17 are arranged on the shaft diameter of the adjusting shaft 12 extending out of the outer side of the mounting plate 20 , wherein the adjusting nut 16 is fixedly connected to the mounting plate 20 , and the anti-backlash nut 17 is fixedly connected to the adjusting nut 16 .

[0019] The left eccentric sleeve 3 is axially limited and fixed by the left baffle plate 2 and the left pressure plate 1 corresponding to the outer side of the left wall panel, and the left eccentric sleeve 3 is limited by the left positioning plate corresponding to the inner side of the left wall panel.

[0020] like Figure 1 As shown, the specific implementation process of the present invention is as follows: on the DS side, the left eccentric sleeve 3 is directly installed in the inner hole of the wall panel. Through the fixation of the left baffle plate 2 and the left pressure plate 1, the left eccentric sleeve 3 can rotate in the hole of the wall panel, but cannot move axially. On the OS side, the right inner eccentric sleeve 8 is installed in the right outer eccentric sleeve inner 6 and fixed in the wall panel through the right baffle plate 9 and the right pressure plate 7. Similarly, the eccentric sleeve can only rotate in the hole and cannot move axially. Compared with the prior art, two outer sleeves are reduced, which not only saves costs, but also reduces the cumulative errors generated when assembling multiple parts.

[0021] A high-precision outer ring integral double-row tapered roller bearing 4 is used between the plate roller 5 and the inner sleeve. When the axial overprint needs to be adjusted, the adjustment amount is input on the main control panel. At this time, the servo motor 18 starts to rotate, and the power is transmitted to the adjustment shaft 12 through the active wheel 15, the transition wheel 14, and the transmission gear 13. The position of the adjustment nut 16 on the adjustment shaft 12 is fixed, so when the adjustment shaft 12 rotates in the connecting plate 10, axial displacement will occur, thereby pulling the connecting plate 10, the plate roller 5, and the bearing 4 to move axially in the eccentric sleeve, so as to achieve the purpose of adjusting the axial overprint, and the adjustment accuracy is also higher.

Claims

1. An axial adjustment mechanism for a plate roller of a book and periodical printing press, characterized in that: It comprises a plate roller (5), the left end of the plate roller (5) passes through the left wall panel, and the right end of the plate roller (5) passes through the right wall panel; bearings (4) are respectively installed on the roller body of the plate roller (5) corresponding to the inner hole of the left wall panel and the inner hole of the right wall panel, wherein a left eccentric sleeve (3) is supported and arranged on the bearing (4) in the inner hole of the left wall panel, and the left eccentric sleeve (3) is axially limited and arranged in the left wall panel; A right baffle plate (9) is supported on the bearing in the inner hole of the right wall panel. A right outer eccentric sleeve (6) is sleeved on the outer side of the right baffle plate (9). The right outer eccentric sleeve (6) extends out of the right wall panel and is matched with the right inner eccentric sleeve (8). The right inner eccentric sleeve (8) is limited on the right wall panel by the right pressure plate (7). The right outer eccentric sleeve (6) and the right baffle plate (9) are axially limited by the right baffle plate. The right side of the plate roller (5) passes through the right wall panel, and a plane thrust bearing (11) is installed on the roller body passing through the right wall panel. The outer ring of the plane thrust bearing (11) supports the connecting plate (10). The plane thrust bearing (11) is axially limited by the right end cover (19). The right end cover (19) is tightly connected to the connecting plate (10). An adjusting shaft (12) is formed at the right end of the plate roller (5). The adjusting shaft (12) passes through the inner hole of the mounting plate (20). The adjusting shaft (12) is driven to operate by a driving device.

2. The axial adjustment mechanism for the plate roller of a book and periodical printing press according to claim 1, characterized in that: The driving device comprises a transmission gear (13) mounted on the adjustment shaft (12), the transmission gear (13) meshing with a transition gear (14), the transition gear (14) meshing with a driving gear (15), the driving gear (15) being mounted on an output shaft of a servo motor (18), and the servo motor (18) being mounted on a mounting plate (20).

3. The axial adjustment mechanism for the plate roller of a book and periodical printing press according to claim 1, characterized in that: An adjusting nut (16) and an anti-backlash nut (17) are arranged on the shaft diameter of the adjusting shaft (12) extending outward from the mounting plate (20), wherein the adjusting nut (16) is fixedly connected to the mounting plate (20), and the anti-backlash nut (17) is fixedly connected to the adjusting nut (16).

4. The axial adjustment mechanism for the plate roller of a book and periodical printing press according to claim 1, characterized in that: The left eccentric sleeve (3) is axially limited and fixed corresponding to the outer side of the left wall panel through the left baffle plate (2) and the left pressure plate (1), and the left eccentric sleeve (3) is limited corresponding to the inner side of the left wall panel through the left positioning plate.

5. The axial adjustment mechanism for the plate roller of a book and periodical printing press according to claim 1, characterized in that: The left end surface of the connecting plate (10) abuts against an adjacent bearing (4).

6. The axial adjustment mechanism for the plate roller of a book and periodical printing press according to claim 1, characterized in that: The bearing (4) is a double-row tapered roller bearing.

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