CN210939589U

CN210939589U - Knife roller pressing device

Info

Publication number: CN210939589U
Application number: CN201921947824.4U
Authority: CN
Inventors: 藤田裕和; 周洪强
Original assignee: Osaka Xilingo Printing Suzhou Co ltd
Current assignee: Osaka Xilingo Printing Suzhou Co ltd
Priority date: 2019-11-12
Filing date: 2019-11-12
Publication date: 2020-07-07
Anticipated expiration: 2029-11-12

Abstract

The utility model discloses a rotor closing device, it relates to lithography apparatus technical field. The problem of current rotor adopts the compression roller to compress tightly the cracked rotor tip pivot that can appear in the rotor is solved. The technical scheme is characterized in that the positioning shaft is symmetrically provided with two pressure bearings, and two sides of each pressure bearing are provided with a plane bearing sleeved on the positioning shaft in a contact manner; the two pressure bearings are respectively contacted with the side walls of the two ends of the knife roll, and the plane bearing is not contacted with the knife roll. The utility model discloses can avoid the cracked condition to appear in rotor head portion pivot to can guarantee the production progress, practice thrift manufacturing cost.

Description

Knife roller pressing device

Technical Field

The utility model relates to a lithography apparatus technical field, more specifically say, it relates to a rotor closing device.

Background

In the existing printing equipment, the knife roller is usually pressed by a compression roller. But the condition that the rotating shafts at the two ends of the knife roll are broken is found in the actual production process, so that the production progress is influenced, the production cost is increased, and the problem needs to be solved urgently.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a rotor closing device, it can avoid rotor tip pivot the cracked condition to can guarantee the production progress, practice thrift manufacturing cost.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a knife roll pressing device comprises a positioning shaft, wherein two pressure bearings are symmetrically arranged on the positioning shaft, and two sides of each pressure bearing are provided with a plane bearing sleeved on the positioning shaft in a contact manner; the two pressure bearings are respectively contacted with the side walls of the two ends of the knife roll, and the plane bearing is not contacted with the knife roll.

Furthermore, limiting plates are arranged at two ends of the positioning shaft, and the outer diameters of the limiting plates are larger than that of the positioning shaft.

Further, the limiting plate is detachably connected with the positioning shaft.

Furthermore, a countersunk bolt in threaded connection with the positioning shaft is arranged on the limiting plate in a penetrating manner.

To sum up, the utility model discloses following beneficial effect has:

1. the two pressure bearings are adopted to press the two ends of the knife roll, so that the stress area of the knife roll can be reduced, and the shearing force applied to the rotating shaft at the end part of the knife roll is reduced, thereby preventing the rotating shaft at the end part of the knife roll from being broken, ensuring the production progress and saving the production cost;

2. the planar bearing is adopted to limit the pressure bearing, the contact surface between the two is large, the friction force is small, and the limiting stability can be improved.

Drawings

FIG. 1 is a schematic structural view of a knife roll pressing device in an embodiment.

In the figure: 1. positioning the shaft; 2. a pressure bearing; 3. a flat bearing; 4. a limiting plate; 5. a countersunk bolt; 6. a knife roller.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Example (b):

a knife roll pressing device, refer to fig. 1, comprises a positioning shaft 1, two pressure bearings 2 are symmetrically arranged on the positioning shaft 1, and two sides of each pressure bearing 1 are respectively provided with a plane bearing 3 which is sleeved on the positioning shaft 1 in a contact manner; wherein, the two pressure bearings 2 are respectively contacted with the side walls of two ends of the knife roll 6, and the plane bearing 3 is not contacted with the knife roll 6; the plane bearings 3 on the two sides of the pressure bearing 1 are used for limiting the axial relative positions of the pressure bearing 2 and the positioning shaft 1, the pressure bearing 1 is prevented from moving, meanwhile, the contact area between the plane bearings 3 and the pressure bearing 2 is large, the friction force is small, and the limiting stability can be improved.

Referring to fig. 1, limiting plates 4 are arranged at two ends of a positioning shaft 1, the outer diameters of the limiting plates 4 are larger than that of the positioning shaft 1, and the positioning shaft 1 is conveniently fixed through the limiting plates 4; limiting plate 4 and location axle 1 are for dismantling the connection, wear to be equipped with in this embodiment on the limiting plate 4 with the 1 threaded connection's of location axle countersunk bolt 5, can be easy to assemble or dismantle limiting plate 4 through countersunk bolt 5.

The working principle is as follows:

adopt two pressure bearing 2 to compress tightly cutter roll 6 on the location axle 1, can reduce cutter roll 6's lifting surface, pressure bearing 2 is located the tip of cutter roll 6 with the contact position of cutter roll 6, can reduce the shearing force that 6 tip pivots of cutter roll received to avoid 6 tip pivots of cutter roll fracture to appear, guarantee the production progress, practice thrift manufacturing cost.

Claims

1. The utility model provides a rotor closing device which characterized in that: the positioning device comprises a positioning shaft, wherein two pressure bearings are symmetrically arranged on the positioning shaft, and two sides of each pressure bearing are provided with a plane bearing sleeved on the positioning shaft in a contact manner; the two pressure bearings are respectively contacted with the side walls of the two ends of the knife roll, and the plane bearing is not contacted with the knife roll.

2. The knife roll compacting apparatus of claim 1, wherein: limiting plates are arranged at two ends of the positioning shaft, and the outer diameters of the limiting plates are larger than that of the positioning shaft.

3. The knife roll compacting apparatus of claim 2, wherein: the limiting plate is detachably connected with the positioning shaft.

4. The knife roll compacting apparatus of claim 3, wherein: and the limiting plate is provided with a countersunk bolt in threaded connection with the positioning shaft in a penetrating manner.