CN210970277U

CN210970277U - Compression roller self-locking mechanism of gravure printing machine

Info

Publication number: CN210970277U
Application number: CN201921438425.5U
Authority: CN
Inventors: 虞哲明
Original assignee: Hangzhou Small Zebra Decoration Material Co ltd
Current assignee: Hangzhou Small Zebra Decoration Material Co ltd
Priority date: 2019-09-02
Filing date: 2019-09-02
Publication date: 2020-07-10
Anticipated expiration: 2029-09-02

Abstract

The utility model relates to the technical field of gravure press, a compression roller self-locking mechanism of gravure press, including compression roller, slider, leading rail and cylinder, the compression roller is horizontal to be arranged, and a slider is respectively installed at both ends, and each slider cooperates with a leading rail respectively, and leading rail and cylinder are installed on the wallboard, and the ejector pin and the slider of cylinder are connected; two ends of the compression roller are respectively provided with a self-locking assembly, and each self-locking assembly comprises two auxiliary guide rails, two suspension ropes and a cross beam; the both sides of leading rail respectively are fixed with an auxiliary guide rail, the equal vertical arrangement of auxiliary guide rail and leading rail, the crossbeam just is located the below of slider on two auxiliary guide rails through two slide slidable ground cooperations, the upside of every auxiliary guide rail is fixed with a dead lever or fixed pulley, the both sides of slider respectively are fixed with a locating lever, the upper end of two hoist cables is established respectively on two locating levers through rings cover, after the dead lever or the fixed pulley of corresponding one side were crossed respectively to the lower extreme of two hoist cables, the both ends at the crossbeam are established to rethread rings cover.

Description

Compression roller self-locking mechanism of gravure printing machine

Technical Field

The utility model belongs to the technical field of the gravure press technique and specifically relates to a compression roller self-locking mechanism of gravure press.

Background

In the printing process of the gravure printing machine, the bottom of the gravure roller 8 is soaked in the ink tank 9, and with the rotation of the gravure roller, the scraper scrapes off the redundant ink on the surface of the gravure roller 8, and only the ink in the patterns is reserved. The paper passes through the upper part of the gravure roller 8 and is tightly pressed on the surface of the gravure roller 8 by the compression roller 4, and the ink in the patterns can be printed on the surface of the decorative paper. Through the color register and drying of a plurality of printing units, beautiful patterns can be formed.

As shown in fig. 1, the press roller 4 is arranged above the gravure roller through a slide block 6 and a main guide rail 5, and the slide block drives the press roller 4 to move up and down under the driving of the cylinder 2, so that the pressure of the press roller 4 on the decorative paper is adjusted. When the unit is maintained or stopped, the air source and the power supply of the whole unit are cut off, the air pressure balance of the cylinder 2 changes after a long time, and when the tension of the cylinder 2 is not enough to counteract the gravity of the compression roller 4, the compression roller 4 can fall vertically and smash the gravure roller 8 to cause irreversible damage to the gravure roller 8, so that printed patterns are wrong, color misregistration is inaccurate, the product quality is influenced, and the accident happens in the actual production process.

To above-mentioned problem, some producers can set up a stopper in gravure press's above-mentioned slider 6's below at present, the stroke through stopper restriction slider 6 prevents on compression roller 4 falls gravure roller 8, nevertheless there is the problem still in the actual production process, the reason is because the design and color of decorative paper are different, gravure roller 8 of less diameter often need to be changed when producing, if gravure roller 8's diameter diminishes, compression roller 4 also then reduces the height during that production, the stopper will restrict the normal decline of compression roller this moment, it is comparatively inconvenient to use.

Disclosure of Invention

The utility model aims at overcoming not enough among the above-mentioned background art, provide a gravure press's compression roller self-locking mechanism, can prevent the compression roller tenesmus when the air supply cuts off, do not influence the decline of compression roller when normal production, still have simple structure, convenient to use's technical characterstic.

The technical purpose of the utility model is realized like this:

a compression roller self-locking mechanism of an intaglio press comprises a compression roller, sliding blocks, a main guide rail and an air cylinder, wherein the compression roller is horizontally arranged, the two ends of the compression roller are respectively provided with one sliding block, each sliding block is respectively matched with one main guide rail, the main guide rail and the air cylinder are arranged on a wall plate, and an ejector rod of the air cylinder is connected with the sliding blocks and drives the compression roller to vertically lift relative to a gravure roller through the sliding blocks; two ends of the compression roller are respectively provided with a self-locking assembly, and each self-locking assembly comprises two auxiliary guide rails, two suspension ropes and a cross beam; the both sides of leading rail respectively are fixed with an auxiliary guide rail, the equal vertical arrangement of auxiliary guide rail and leading rail, the crossbeam just is located the below of slider on two auxiliary guide rails through two slide slidable ground cooperations, the upside of every auxiliary guide rail is fixed with a dead lever or fixed pulley, the both sides of slider respectively are fixed with a locating lever, the upper end of two hoist cables is established respectively on two locating levers through rings cover, after the dead lever or the fixed pulley of corresponding one side were crossed respectively to the lower extreme of two hoist cables, the both ends at the crossbeam are established to rethread rings cover.

Preferably, the positioning rod is parallel to the rotating shaft of the press roller and is positioned on one surface of the sliding block facing the press roller.

Preferably, the fixing bars are fixed to a wall panel of the gravure printing unit.

Preferably, the fixed pulley is mounted on a wall plate of the gravure printing unit.

The utility model has the advantages that: the utility model discloses utilize the principle of fixed pulley, after cutting off the air supply, utilize the weight of compression roller self, when the slider descends, the hoist cable can stimulate the crossbeam and rise, holds up the slider, makes the compression roller no longer descend, avoids it to fall. During normal production, only need switch on the air supply, make the slider rise, make the hoist cable become lax, take off the hoist cable can, can not disturb the work of compression roller, simple structure, convenient to use.

Drawings

Fig. 1 is a schematic view of a structure of a conventional roll.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a schematic structural view of the self-locking state of the press roller.

Fig. 4 is a schematic structural view of the platen roller to be unlocked.

Detailed Description

The present invention will be further explained with reference to the drawings.

As shown in fig. 2 to 4, the utility model provides a pair of gravure press's compression roller self-locking mechanism, including compression roller 4, slider 6, leading rail 5 and

cylinder

2, 4 levels of compression roller are arranged, and slider 6 is respectively installed at both ends, and every slider 6 cooperates with a leading rail 5 respectively, and leading rail 5 and cylinder 2 are installed on wallboard 1, and ejector pin 3 and the slider 6 of cylinder 2 are connected, drive the 8 oscilaltions of the relative gravure roller of compression roller 4 through slider 6.

Two ends of the compression roller 4 are respectively provided with a self-locking assembly, and each self-locking assembly comprises two auxiliary guide rails 11, two suspension ropes 12 (steel ropes or nylon belts can be adopted), and a cross beam 13. Obviously, the lengths of the two slings 12 are the same.

Two sides of the main guide rail 5 are respectively fixed with an auxiliary guide rail 11, the auxiliary guide rails 11 and the main guide rail 5 are vertically arranged, the cross beam 13 is slidably matched on the two auxiliary guide rails 11 through two sliding seats 15 and is positioned below the sliding block 6, and two ends of the cross beam 13 extend out of the auxiliary guide rails 11. A fixed rod 10 or a fixed pulley (generally located right above the auxiliary guide rail 10) is fixed on the upper side of each auxiliary guide rail 11, a positioning rod 16 is respectively fixed on two sides of the sliding block 6, the upper ends of the two slings 12 are respectively sleeved on the two positioning rods 16 through a hanging ring 14, and the lower ends of the two slings 12 are respectively sleeved on two ends of the cross beam 13 after passing over the fixed rod 10 or the fixed pulley on the corresponding side through the hanging ring 14. In general, the slings 12 are not in contact with both the primary and

secondary tracks

5, 11.

The positioning rod 16 is parallel to the rotating shaft 7 of the press roll 4 and welded on one surface of the sliding block 6 facing the press roll 4. If the fixing rod 10 is adopted on the upper side of the auxiliary guide rail, the fixing rod 10 is welded and fixed on the wall plate 1 of the intaglio printing unit. If a fixed pulley is used, it is mounted on the wall panel 1 of the gravure printing unit.

The utility model discloses a theory of operation is:

(1) when self-locking; before a worker cuts off an air source and a power supply, the air cylinder 2 is operated to lift the compression roller 4, the compression roller 4 is separated from the surface of the gravure roller 8, then the cross beam 13 is pushed to be close to the sliding block 6, the lifting rings 14 of the sling 12 are respectively sleeved at the two ends of the positioning rod 16 and the cross beam 13, after the air source is cut off, the sling 12 can pull the cross beam 13 to rise by utilizing the self weight of the compression roller 4 when the sliding block 6 descends, the sliding block 6 is lifted, the compression roller 4 is prevented from descending any more, and the compression roller is;

(2) when unlocking; when the production is recovered, a worker switches on an air source and a power supply, and if the compression roller 4 does not fall down, the sling 12 can be directly taken down; if the compression roller 4 falls to cause self-locking, the air cylinder 2 is operated to lift the compression roller 4 for a certain distance, the sliding block 6 is separated from the cross beam 13 at the moment, the cross beam 13 is light, the cross beam 13 can be manually lifted to enable the sling 12 to become loose, the sling 12 is taken down from two ends of the cross beam 13 and two positioning rods 16, and the sliding block 6 can be lifted and lowered only under the driving of the air cylinder 2 without being limited by the cross beam 13.

The above description is only a preferred embodiment of the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A compression roller self-locking mechanism of an intaglio press comprises a compression roller (4), sliders (6), a main guide rail (5) and an air cylinder (2), wherein the compression roller (4) is horizontally arranged, the sliders (6) are respectively installed at two ends of the compression roller (4), each slider (6) is respectively matched with one main guide rail (5), the main guide rail (5) and the air cylinder (2) are installed on a wallboard (1), an ejector rod (3) of the air cylinder (2) is connected with the sliders (6), and the compression roller (4) is driven to lift up and down relative to a gravure roller (8) through the sliders (6); the method is characterized in that: two ends of the compression roller (4) are respectively provided with a self-locking assembly, and each self-locking assembly comprises two auxiliary guide rails (11), two suspension ropes (12) and a cross beam (13); two sides of the main guide rail (5) are respectively fixed with an auxiliary guide rail (11), the auxiliary guide rails (11) and the main guide rail (5) are vertically arranged, the cross beam (13) is matched on the two auxiliary guide rails (11) in a sliding mode through two sliding seats (15) and located below the sliding blocks (6), the upper side of each auxiliary guide rail (11) is fixed with a fixed rod (10) or a fixed pulley, two sides of the sliding blocks (6) are respectively fixed with a positioning rod (16), the upper ends of the two slings (12) are respectively sleeved on the two positioning rods (16) through the hanging rings (14), the lower ends of the two slings (12) respectively cross the fixed rods (10) or the fixed pulleys on one corresponding side, and then the two ends of the cross beam (13) are sleeved through the hanging rings (14).

2. The pressure roller self-locking mechanism of an intaglio printing press as recited in claim 1, wherein: the positioning rod (16) is parallel to a rotating shaft (7) of the press roller (4) and is positioned on one surface, facing the press roller (4), of the sliding block (6).

3. The pressure roller self-locking mechanism of an intaglio printing press as recited in claim 1, wherein: the fixing rod (10) is fixed on a wall plate (1) of the gravure printing unit.

4. The pressure roller self-locking mechanism of an intaglio printing press as recited in claim 1, wherein: the fixed pulley is arranged on a wall plate (1) of the gravure printing unit.