CN215751423U

CN215751423U - Constant negative pressure device for ink supply of printing machine

Info

Publication number: CN215751423U
Application number: CN202122244630.1U
Authority: CN
Inventors: 刘壬泉
Original assignee: Guangzhou Fuchen Package Product Co ltd
Current assignee: Guangzhou Fuchen Package Product Co ltd
Priority date: 2021-09-16
Filing date: 2021-09-16
Publication date: 2022-02-08
Anticipated expiration: 2031-09-16

Abstract

The utility model provides an ink supply constant negative pressure device of a printing machine, which comprises a negative pressure retaining device, wherein one side of the negative pressure retaining device is provided with a notch, a plurality of air pipe joints and a negative pressure sensor are fixedly arranged in the notch, the air pipe joints are communicated with the inside of the negative pressure retaining device, one end of the negative pressure retaining device is provided with a cover cap in a threaded manner, one side of the negative pressure retaining device is provided with a tangent plane structure, the top in the center of the negative pressure retaining device is fixedly connected with a guide pillar, and a pressing block is arranged on the guide pillar in a sliding manner. The negative pressure maintaining device has the advantages that the notch is formed in one side of the negative pressure maintaining device, the air pipe joint communicated with the interior of the negative pressure maintaining device is arranged in the notch, the negative pressure sensor is also arranged in the notch, and when the negative pressure maintaining device is installed, the air pipe joint and the negative pressure sensor are effectively protected, damage conditions are reduced, and the space position for installing the negative pressure maintaining device is saved.

Description

Constant negative pressure device for ink supply of printing machine

Technical Field

The utility model relates to the technical field of printing machines, in particular to an ink supply constant negative pressure device of a printing machine.

Background

The printing machine is a machine for printing characters and images, and the modern printing machine is generally composed of mechanisms of plate-loading, ink-coating, stamping and paper-conveying, etc., and its principle is that firstly the characters or images to be printed are made into printing plate, then the printing plate is mounted on the printing machine, then the ink is coated on the place with characters and images on the printing plate by manual operation or printing machine, then the printing plate is directly or indirectly transferred onto paper or other printing stock, in which the negative pressure equipment is an important component in the printing machine, and the air pipe joint of the negative pressure equipment in the existent printing machine is unreasonable in position design, and when it is mounted, the air pipe joint and negative pressure sensor are easily damaged due to exposure, and the space occupied by the negative pressure equipment is relatively large.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems existing in the background technology, the utility model adopts the technical scheme that:

the constant negative pressure device for ink supply of the printing machine comprises a negative pressure retaining device, wherein a notch is formed in one side of the negative pressure retaining device, a plurality of air pipe joints and a negative pressure sensor are fixedly mounted in the notch, the air pipe joints are communicated with the inside of the negative pressure retaining device, and a cover cap is mounted at one end of the negative pressure retaining device through threads.

Preferably, one side of the negative pressure maintaining device is provided with a tangent plane structure.

Preferably, a guide pillar is fixedly connected to the top of the center of the negative pressure holding device, a press block is slidably mounted on the guide pillar, and the side wall of the press block is attached to the inner side wall of the negative pressure holding device.

Preferably, one end of the guide pillar is fixedly sleeved with a limiting block, the other end of the guide pillar is sleeved with a return spring, and one end of the return spring is fixedly connected with the bottom of the pressing block.

Preferably, a partition plate is arranged at the bottom in the negative pressure holding device, the top of the partition plate is fixedly connected with the other end of the return spring, the top of the partition plate is abutted against one end of the guide pillar, the side wall of the partition plate is attached to the inner side wall of the negative pressure holding device, and a damping block is arranged at the bottom of the partition plate.

Preferably, the bottom of the negative pressure maintaining device is provided with an external thread matched with the cap.

The utility model has the advantages that: according to the ink supply constant negative pressure device of the printing machine, the notch is formed in one side of the negative pressure retaining device, the air pipe connector communicated with the interior of the negative pressure retaining device is arranged in the notch, the negative pressure sensor is also arranged in the notch, and when the negative pressure retaining device is installed, the air pipe connector and the negative pressure sensor are effectively protected, the damage condition is reduced, and the space position for installing the negative pressure retaining device is saved.

Drawings

The utility model and its features, aspects and advantages will become more apparent from reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference symbols in the various drawings indicate like elements. The drawings are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the utility model.

FIG. 1 is a schematic diagram of the basic structure of a viewing angle of the present invention;

FIG. 2 is a schematic diagram of the basic structure of another aspect of the present invention;

FIG. 3 is a schematic cross-sectional view of a viewing angle of the present invention;

fig. 4 is a schematic cross-sectional view of another aspect of the present invention.

In the figure: 1. a negative pressure holding device; 2. a notch; 3. a gas pipe joint; 4. a negative pressure sensor; 5. capping; 6. cutting the structure of a section; 7. a guide post; 8. briquetting; 9. a return spring; 10. a partition plate; 11. a damper block; 12. an external thread; 13. and a limiting block.

Detailed Description

The utility model will be further described with reference to the following drawings and specific examples, which are not intended to limit the utility model thereto.

Example 1

As shown in fig. 1-4, the ink supply constant negative pressure device for the printing machine provided by the utility model comprises a negative pressure holding device 1, a gap 2 is formed on one side of the negative pressure holding device 1, a plurality of air pipe joints 3 and negative pressure sensors 4 are fixedly arranged in the gap 2, the air pipe joints 3 are communicated with the inside of the negative pressure holding device 1, and a cap 5 is arranged at one end of the negative pressure holding device 1 through a thread.

In order to stably install the negative pressure maintaining device 1 in the printer, a tangent plane structure 6 is arranged on one side of the negative pressure maintaining device 1, so that the rolling condition caused by the fact that the outside of the negative pressure maintaining device 1 is completely of a smooth structure after the negative pressure maintaining device 1 is installed is avoided.

The top in the center of the negative pressure holding device 1 is fixedly connected with a guide pillar 7, a press block 8 is slidably mounted on the guide pillar 7, the side wall of the press block 8 is attached to the inner side wall of the negative pressure holding device 1, and the position of the press block 8 can be changed according to the negative pressure value of the negative pressure holding device 1.

The change of negative pressure value in briquetting 8 along with negative pressure retaining device 1, the fixed stopper 13 that has cup jointed of one end of guide pillar 7, avoided briquetting 8 to slide to negative pressure sensor 4's upper portion and the negative pressure value in unable measurement negative pressure retaining device 1 like this, and can protect the one end that negative pressure sensor 4 is located negative pressure retaining device 1 not to be harmed, reset spring 9 has been cup jointed to the other end of guide pillar 7, reset spring 9's one end and the bottom fixed connection of briquetting 8, reset spring 9 has certain reset action, play certain supporting role.

In order to increase the sealing performance in the negative pressure holding device 1, a partition plate 10 is arranged at the bottom in the negative pressure holding device 1, the top of the partition plate 10 is fixedly connected with the other end of the return spring 9, the top of the partition plate 10 is abutted to one end of the guide pillar 7, the position of the partition plate 10 is limited, the side wall of the partition plate 10 is attached to the inner side wall of the negative pressure holding device 1, a damping block 11 is arranged at the bottom of the partition plate 10, a certain damping effect is increased, and the influence on the installation state of the cap 5 caused by the impact force of the pressing block 8 moving to the partition plate 10 is avoided.

In order to facilitate the tight connection between the cap 5 and the vacuum holding device 1, an external thread 12 is provided on the bottom of the vacuum holding device 1 for mating with the cap 5.

During the use, one side through negative pressure retaining device 1 sets up breach 2, will set up in breach 2 with the inside intercommunication trachea joint 3 of negative pressure retaining device 1, and also set up negative pressure sensor 4 in breach 2, install the effectual protection trachea joint 3 of negative pressure retaining device 1 and negative pressure sensor 4 at the workman, and be convenient for vacuum pump and second grade protection device and negative pressure retaining device 1 communicate, reduce impaired condition, and practiced thrift the spatial position of required installation negative pressure retaining device 1, set up snubber block 11 at the interior bottom of negative pressure retaining device 1, increase certain shock attenuation effect, avoid the impact force that briquetting 8 removed to baffle 10 and influence the mounted state of block cap 5.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A constant negative pressure device for ink supply of a printing machine comprises a negative pressure maintaining device (1), and is characterized in that: a gap (2) is formed in one side of the negative pressure maintaining device (1), a plurality of air pipe connectors (3) and a negative pressure sensor (4) are fixedly installed in the gap (2), the air pipe connectors (3) are communicated with the inside of the negative pressure maintaining device (1), and a cover cap (5) is installed at one end of the negative pressure maintaining device (1) in a threaded mode.

2. An ink supply constant negative pressure device of a printing press as claimed in claim 1, wherein: one side of the negative pressure maintaining device (1) is provided with a tangent plane structure (6).

3. An ink supply constant negative pressure device of a printing press as claimed in claim 2, wherein: the inner top of the center of the negative pressure retaining device (1) is fixedly connected with a guide pillar (7), a pressing block (8) is slidably mounted on the guide pillar (7), and the side wall of the pressing block (8) is attached to the inner side wall of the negative pressure retaining device (1).

4. A constant negative pressure ink supply device for a printing press as defined in claim 3, wherein: one end of the guide post (7) is fixedly sleeved with a limiting block (13), the other end of the guide post (7) is sleeved with a return spring (9), and one end of the return spring (9) is fixedly connected with the bottom of the pressing block (8).

5. An ink supply constant negative pressure device of a printing press as claimed in claim 4, wherein: the bottom in the negative pressure maintaining device (1) is provided with a partition plate (10), the top of the partition plate (10) is fixedly connected with the other end of the return spring (9), the top of the partition plate (10) is abutted against one end of the guide post (7), the side wall of the partition plate (10) is attached to the inner side wall of the negative pressure maintaining device (1), and the bottom of the partition plate (10) is provided with a damping block (11).

6. An ink supply constant negative pressure device of a printing press as claimed in claim 1, wherein: the bottom of the negative pressure maintaining device (1) is provided with an external thread (12) matched with the cover cap (5).