CN220995780U

CN220995780U - Roller regulating mechanism of offset press

Info

Publication number: CN220995780U
Application number: CN202322938032.3U
Authority: CN
Inventors: 庄旭
Original assignee: Anhui Yusheng Environmental Protection Packaging Technology Co ltd
Current assignee: Anhui Yusheng Environmental Protection Packaging Technology Co ltd
Priority date: 2023-10-31
Filing date: 2023-10-31
Publication date: 2024-05-24
Anticipated expiration: 2033-10-31

Abstract

The utility model discloses a cylinder adjusting mechanism of a sheet offset press, which relates to the technical field of offset presses, solves the problems of poor offset printing effect and certain limitation of the traditional device, and adopts the following scheme: the top surface fixed mounting of base has the portal frame, this be used for a flat paper offset press cylinder adjustment mechanism, through motor A, the setting of first lead screw and slider, drive first lead screw through motor A and rotate, thereby drive slider and pressure section of thick bamboo go up and down, can guarantee the degree of accuracy of offset printing to the paper according to the thickness adjustment pressure section of thick bamboo of paper and the distance between the paper, improve offset printing's effect, simultaneously through the slide bar, the movable block, the position of two sets of movable blocks of movable sleeve and elastic cloth layer of setting, can be according to the needs of paper, the movable block drives the movable sleeve and removes, thereby drive the elastic cloth layer and wrap up pressure section of thick bamboo, thereby change the size of pressure section of thick bamboo offset printing, can offset printing to the paper of different specifications, the practicality is high.

Description

Roller regulating mechanism of offset press

Technical Field

The utility model relates to the technical field of offset presses, in particular to a cylinder adjusting mechanism of a flat paper offset press.

Background

The offset press is one kind of offset press, and the printing picture and text is first printed from the printing plate onto the blanket cylinder and then transferred onto paper with the blanket cylinder, and the offset press may be divided into offset press with single paper and offset press with roll paper in different paper feeding mode.

Through searching, in the application with the patent publication number of CN210026606U, a cylinder adjusting mechanism of a flat paper offset press is disclosed, which comprises an offset press body, a printing mechanism, a paper jamming mechanism and a fixing mechanism, wherein the printing mechanism is arranged at the top of the offset press body, and the printing mechanism comprises a backup plate, a sliding plate and a pressing cylinder; the paper jamming mechanism is formed between the side walls of the two backup plates and the two sliding plates and comprises a paper groove and a fixing groove, and the fixing mechanism comprises a screw rod, a mounting plate, a pressing block, a fixing plate, a pressing block groove, a sliding groove and scale marks, so that the distance between the rubber cylinder and the pressing cylinder can be adjusted, and papers with different thicknesses can be printed conveniently.

However, due to the arrangement of the printing mechanism and the pressing cylinder, the pressing cylinder cannot move up and down, the distance between the pressing cylinder and the paper cannot be adjusted according to actual conditions, different pressures are required for offset printing of the paper with different thicknesses, the offset printing effect is poor, meanwhile, the offset printing of the paper with different specifications is limited due to the fact that the specifications of the pressing cylinder are fixed, the practicability is low, the pressing cylinders with different specifications are required for offset printing of the paper with different specifications, and the production cost is increased.

Accordingly, we have proposed a platen roller adjustment mechanism for a offset sheet press.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model provides a cylinder adjusting mechanism of a sheet offset press, which solves the problems of poor offset printing effect and certain limitation of the prior device.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the cylinder adjusting mechanism of the offset printing machine for the flat paper comprises a base, wherein a portal frame with the specification matched with the top surface of the base is fixedly arranged, and a pressing cylinder is arranged between the bases;

The left side and the right side of the base are respectively provided with a chute with opposite positions, the top surface of the base is fixedly provided with two groups of motors A with opposite positions, a first screw rod sleeved on the output end of the motor A is assembled between the upper side and the lower side of the chute, the outer wall of the first screw rod is sleeved with a slide block with specification matching, the left side of the slide block is fixedly provided with a motor B, the output end of the motor B is sleeved with a rotating shaft positioned on the right side of the slide block, and the rotating shaft is connected with a pressing cylinder;

The automatic pressing device is characterized in that two groups of fixed sleeves with opposite positions are fixedly installed on the outer wall of the pressing cylinder, grooves with opposite positions are formed in the top surface of the portal frame, sliding rods are fixedly installed in the grooves, two groups of moving blocks with opposite positions are connected to the outer wall of the sliding rods in a sliding mode, two groups of control seats which are respectively connected with the moving blocks are fixedly installed on the top surface of the portal frame, movable sleeves sleeved on the outer wall of the pressing cylinder are fixedly installed on the bottom surface of the moving blocks, and an elastic cloth layer is fixedly installed between each movable sleeve and each fixed sleeve.

Preferably, the bottom end of the first screw rod is provided with a bearing A, so that the rotating stability of the first screw rod can be ensured.

Preferably, the left side of pivot is equipped with bearing B, can guarantee like this to press a section of thick bamboo to carry out pivoted while guaranteeing the stability of slider.

Preferably, two groups of limiting blocks with opposite positions are fixedly arranged at the left side and the right side of the sliding groove, so that the sliding block can be limited, and the offset printing effect is prevented from being influenced by excessive descending of the pressing cylinder.

Preferably, the right side of the moving block is provided with an infrared distance sensor, so that damage caused by collision between the two groups of moving blocks can be prevented.

Preferably, scale marks are arranged on the outer walls of the left side and the right side of the base, so that the offset printing accuracy can be improved.

The utility model provides a cylinder adjusting mechanism of a sheet offset press. The beneficial effects are as follows:

1. according to the roller adjusting mechanism for the offset printing machine of the flat paper, through the arrangement of the motor A, the first screw rod and the sliding block, the motor A drives the first screw rod to rotate so as to drive the sliding block and the pressing cylinder to lift, so that the distance between the pressing cylinder and the paper can be adjusted according to the thickness of the paper, the offset printing accuracy of the paper is ensured, and the offset printing effect is improved;

2. Simultaneously through the setting of slide bar, movable block, movable sleeve and elastic cloth layer, can be according to the needs of paper, the position of two sets of movable blocks of adjustment, the movable block drives the movable sleeve and removes to drive the elastic cloth layer and wrap up the pressure section of thick bamboo, thereby change the size of pressure section of thick bamboo offset printing, can carry out offset printing to the paper of different specifications, the practicality is high, also reduces the cost of production simultaneously.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic view of the structure of the base of the present utility model;

FIG. 3 is a schematic view of the structure of the movable sleeve of the present utility model;

fig. 4 is a schematic structural view of a portal frame according to the present utility model:

in the figure: 1. a base; 2. a portal frame; 3. pressing a cylinder; 4. a chute; 5. a first screw rod; 6. a slide block; 7. a motor A; 8. a bearing A; 9. a limiting block; 10. a motor B; 11. a rotating shaft; 12. a bearing B; 13. a fixed sleeve; 14. a movable sleeve; 15. an elastic cloth layer; 16. a groove; 17. a slide bar; 18. a moving block; 19. and a control seat.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1:

As shown in fig. 1-4: the left and right sides of base 1 has offered spout 4 that the position is relative respectively, the top surface fixed mounting of base 1 has two sets of motors A7 that the position is relative, be equipped with first lead screw 5 of suit on motor A7 output between the upper and lower both sides of spout 4, the cover is equipped with the slider 6 of specification looks adaptation on the outer wall of first lead screw 5, the left side fixed mounting of slider 6 has motor B10, the cover is equipped with the pivot 11 that is located slider 6 right side on motor B10's the output, pivot 11 is connected with pressure section of thick bamboo 3, through motor A7, first lead screw 5 and slider 6's setting, drive first lead screw 5 through motor A7 and rotate, thereby drive slider 6 and pressure section of thick bamboo 3 go up and down, thereby can be according to the thickness adjustment pressure section of thick bamboo 3 of thick bamboo of paper and the distance between the paper, guarantee the offset printing's of paper degree of accuracy, the effect is improved.

Example 2:

As shown in fig. 3-4: two groups of fixed sleeves 13 with opposite positions are fixedly arranged on the outer wall of the pressing cylinder 3, grooves 16 with opposite positions are formed in the top surface of the portal frame 2, sliding rods 17 are fixedly arranged in the grooves 16, two groups of moving blocks 18 with opposite positions are connected to the outer wall of the sliding rods 17 in a sliding manner, two groups of control seats 19 which are respectively connected with the moving blocks 18 are fixedly arranged on the top surface of the portal frame 2, movable sleeves 14 sleeved on the outer wall of the pressing cylinder 3 are fixedly arranged on the bottom surface of the moving blocks 18, an elastic cloth layer 15 is fixedly arranged between the movable sleeves 14 and the fixed sleeves 13, the positions of the two groups of moving blocks 18 can be adjusted according to the needs of paper through the arrangement of the sliding rods 17, the moving blocks 18, the movable sleeves 14 and the elastic cloth layer 15, and the moving blocks 18 drive the movable sleeves 14 to move so as to drive the elastic cloth layer 15 to wrap the pressing cylinder 3, the offset printing size of the pressing cylinder 3 can be changed, the offset printing of paper with different specifications is high in practicability, and meanwhile, the production cost is reduced.

Example 3:

as shown in fig. 1-3: the bottom of first lead screw 5 is equipped with bearing A8, and the left side of pivot 11 is equipped with bearing B12, can guarantee the stability of first lead screw and pressure section of thick bamboo operation like this, improves the holistic smoothness nature of device.

The working principle and the using flow of the utility model are as follows: when the device works, the first screw rod 5 is driven to rotate through the motor A7 according to the thickness of paper, so that the sliding block 6 and the pressing cylinder 3 are driven to lift, the distance between the pressing cylinder 3 and the paper is ensured, then two groups of moving blocks 18 are controlled to move through the control seat 19 according to the size of the paper and the requirement of offset printing, the moving blocks 18 drive the movable sleeve 14 to move, the elastic cloth layer 15 is driven to wrap the pressing cylinder 3, the offset printing size of the pressing cylinder 3 is changed, and then the device can be operated through the motor B10 to offset the paper.

While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. The cylinder adjusting mechanism of the offset printing press comprises a base (1), wherein a portal frame (2) with the specification being matched with each other is fixedly arranged on the top surface of the base (1), and a pressing cylinder (3) is arranged between the bases (1);

the method is characterized in that: the sliding block type hydraulic press is characterized in that sliding grooves (4) with opposite positions are respectively formed in the left side and the right side of the base (1), two groups of motors A (7) with opposite positions are fixedly arranged on the top surface of the base (1), a first screw rod (5) sleeved on the output end of the motor A (7) is assembled between the upper side and the lower side of the sliding groove (4), a sliding block (6) with specification matching is sleeved on the outer wall of the first screw rod (5), a motor B (10) is fixedly arranged on the left side of the sliding block (6), a rotating shaft (11) positioned on the right side of the sliding block (6) is sleeved on the output end of the motor B (10), and the rotating shaft (11) is connected with the pressing cylinder (3);

Two groups of fixed sleeves (13) with opposite positions are fixedly installed on the outer wall of the pressing cylinder (3), grooves (16) with opposite positions are formed in the top surface of the portal frame (2), sliding rods (17) are fixedly installed in the grooves (16), two groups of moving blocks (18) with opposite positions are connected to the outer wall of each sliding rod (17) in a sliding mode, two groups of control seats (19) which are respectively connected with the moving blocks (18) are fixedly installed on the top surface of the portal frame (2), movable sleeves (14) sleeved on the outer wall of the pressing cylinder (3) are fixedly installed on the bottom surface of each moving block (18), and an elastic cloth layer (15) is fixedly installed between each movable sleeve (14) and each fixed sleeve (13).

2. The cylinder adjustment mechanism of a sheet offset printing press as recited in claim 1 wherein: the bottom end of the first screw rod (5) is provided with a bearing A (8).

3. The cylinder adjustment mechanism of a sheet offset printing press as recited in claim 1 wherein: the left side of the rotating shaft (11) is provided with a bearing B (12).

4. The cylinder adjustment mechanism of a sheet offset printing press as recited in claim 1 wherein: two groups of limiting blocks (9) with opposite positions are fixedly arranged on the left side and the right side of the sliding groove (4).

5. The cylinder adjustment mechanism of a sheet offset printing press as recited in claim 1 wherein: an infrared distance sensor is arranged on the right side of the moving block (18).

6. The cylinder adjustment mechanism of a sheet offset printing press as recited in claim 1 wherein: the outer walls of the left side and the right side of the base (1) are provided with scale marks.