CN219055691U

CN219055691U - Net pressing mechanism of net puller

Info

Publication number: CN219055691U
Application number: CN202223591803.8U
Authority: CN
Inventors: 景国梅
Original assignee: Shanghai Minggao Printing Equipment Co ltd
Current assignee: Shanghai Minggao Printing Equipment Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-05-23
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses a net pressing mechanism of a net puller, and belongs to the technical field of net puller. The device comprises a cross beam, wherein a plurality of supporting frames are uniformly arranged on one side of the cross beam, a lower pressing bar is arranged on the other side of the cross beam, an air cylinder fixing plate is arranged on the supporting frames, a plurality of compression air cylinders and at least two pre-compression air cylinders are inversely fixed on the air cylinder fixing plate, and piston rods of the compression air cylinders and the pre-compression air cylinders are downwards arranged; the piston rod of the pre-pressing cylinder is connected with an upper pressing bar corresponding to the lower pressing bar, and the bottom of the piston rod of the pressing cylinder is connected with a pressing bolt. According to the novel net pressing mechanism of the net puller, the pressing cylinder is inverted, so that the piston rod directly stretches downwards, and compared with the existing normal installation pressing cylinder, no redundant energy is consumed in the pressing process, the novel net pressing mechanism can completely apply pressure to the upper pressing strip, the net pressing function can be realized, the energy consumption required by the driving cylinder is reduced, and meanwhile, a more stable net pressing clamping effect is provided.

Description

Net pressing mechanism of net puller

Technical Field

The utility model relates to a net pressing mechanism of a net puller, and belongs to the technical field of net puller.

Background

Screen printing is to use a screen as a substrate and make a screen printing plate with graphics and texts by a photosensitive plate making method. Screen printing consists of five major elements, screen printing plate, squeegee, ink, printing table and printing stock. The basic principle that the mesh of the image-text part of the screen plate can be penetrated by ink and the mesh of the non-image-text part can not be penetrated by ink is utilized for printing. When in printing, ink is poured into one end of the screen printing plate, a certain pressure is applied to the ink part on the screen printing plate by the scraping plate, meanwhile, the ink moves at a constant speed towards the other end of the screen printing plate, and the ink is extruded onto a printing stock from the mesh of the image-text part by the scraping plate in the moving process.

The screen stretcher (also called screen stretcher) is mainly used for drawing screen printing plates. The screen pressing mechanisms are arranged around the screen pulling machine and used for clamping the screen, each side of the traditional screen pressing machine comprises a plurality of manual chucks, and the manual chucks need to be manually broken to clamp and fix the screen, so that the screen pulling machine is low in efficiency and time and labor are wasted.

Therefore, an automatic screen pressing mechanism appears in the prior art, as shown in fig. 1-2, a row of a plurality of pressing cylinders are installed on a cross beam, piston rods of all the pressing cylinders are upwards arranged, end parts of the piston rods are fixedly connected with one ends of connecting blocks, pressing bolts are fixedly arranged at the other ends of the connecting blocks, a pre-pressing cylinder is respectively arranged on two sides of each pressing cylinder group, an upper pressing strip is connected to the telescopic ends of the pre-pressing cylinders, a lower pressing strip corresponding to the upper pressing strip is arranged on the cross beam, when a screen tensioning machine needs to clamp a screen, the pre-pressing cylinders work to pre-clamp the screen, after confirming that the pre-clamping is correct, the pressing cylinders work, cylinder piston rods retract downwards, and the piston rods drive the connecting blocks and the pressing bolts to move downwards until the upper pressing strips and the lower pressing strips are clamped, and then the screen is clamped.

However, in the automatic net pressing mechanism, since the pressing cylinder is of a normal structure, that is, the piston rod is arranged above, and the piston rod moves downwards, part of the pressure is consumed by the connecting block which is arranged transversely, that is, the clamping force generated by the cylinder cannot fully act on the upper pressing bar, so that the clamping effect is not ideal.

Disclosure of Invention

In order to solve the technical problems, the utility model aims to provide a novel net pressing mechanism of a net puller, which can reduce the energy consumption required by driving a cylinder while realizing a net pressing function through reasonable cylinder structural design and simultaneously provide a more stable net pressing clamping effect.

The technical problems to be solved by the utility model are realized by adopting the following technical scheme:

the net pressing mechanism of the net puller comprises a cross beam, wherein a plurality of supporting frames are uniformly arranged on one side of the cross beam, a lower pressing bar is arranged on the other side of the cross beam, an air cylinder fixing plate is arranged on the supporting frames, a plurality of pressing air cylinders and at least two pre-pressing air cylinders are inversely fixed on the air cylinder fixing plate, and piston rods of the pressing air cylinders and the pre-pressing air cylinders are downwards arranged;

the piston rod of the pre-pressing cylinder is connected with an upper pressing bar corresponding to the lower pressing bar, and the bottom of the piston rod of the pressing cylinder is connected with a pressing bolt.

As a preferred example, the upper and lower molding pieces have the same length as the cross member.

As a preferred example, the device further comprises a cross rod, the upper pressing bar is fixed to the bottom of the cross rod, and a piston rod of the pre-pressing cylinder is connected with the cross rod.

As a preferred example, a protection backing plate is further arranged above the cross rod, and the protection backing plate is located at the bottom of a piston rod of the compression cylinder.

As a preferable example, the piston rod of the pre-pressing cylinder is of an outer tooth shape, and the bottom of the piston rod is fixedly connected with the cross rod in a threaded manner.

As a preferable example, the bottom of the cross bar and the top of the cross bar are respectively provided with a layering groove, and the upper layering and the lower layering are respectively arranged in the layering grooves.

As a preferred example, a reinforcing plate is further installed between the piston rod and the cross rod of the pre-pressing cylinder.

As a preferable example, the piston rod of the compression cylinder is an inner tooth type, and the bottom of the piston rod is in threaded connection with a compression bolt.

The beneficial effects of the utility model are as follows:

according to the novel net pressing mechanism of the net puller, the pressing cylinder is inverted, so that the piston rod directly stretches downwards, and compared with the existing normal installation pressing cylinder, no redundant energy is consumed in the pressing process, the novel net pressing mechanism can completely apply pressure to the upper pressing strip, the net pressing function can be realized, the energy consumption required by the driving cylinder is reduced, and meanwhile, a more stable net pressing clamping effect is provided.

Drawings

FIG. 1 is a schematic diagram of a screen pressing mechanism of a screen puller in a three-dimensional structure in the prior art;

fig. 2 is a schematic diagram of a three-dimensional structure of a net pressing mechanism of a net puller in the prior art;

fig. 3 is a schematic perspective view of a to-be-operated state of a medium-voltage network mechanism according to an embodiment of the present utility model;

fig. 4 is a schematic diagram of a perspective structure of a to-be-operated state of the medium-voltage network mechanism according to the embodiment of the utility model;

fig. 5 is a schematic diagram of a front view structure of a standby state of a medium voltage network mechanism according to an embodiment of the present utility model;

FIG. 6 is a schematic side view of a medium voltage network mechanism according to an embodiment of the present utility model;

fig. 7 is a schematic perspective view of a pre-fixing state of a net pressing mechanism according to an embodiment of the present utility model;

FIG. 8 is a schematic diagram of a front view of a pre-fixing state of a screen pressing mechanism according to an embodiment of the present utility model;

fig. 9 is a schematic perspective view of a pressing state of a mesh pressing mechanism according to an embodiment of the present utility model;

fig. 10 is a schematic front view of a pressing state of a pressing mechanism of a pressing net mechanism according to an embodiment of the present utility model.

In the figure:

1. a cross beam; 2. a compacting cylinder; 3. a connecting block; 4. a compression bolt; 5. a pre-pressing cylinder; 6. an upper pressing bar; 7. a lower pressing bar; 8. a support frame; 9. a cylinder fixing plate; 10. a cross bar; 11. a protective backing plate; 12. a layering groove; 13. reinforcing plate.

Detailed Description

The utility model will be further described with reference to the following detailed drawings and examples, in order to make the technical means, the creation features, the achievement of the objects and the effects of the utility model easily understood.

Examples:

as shown in fig. 3 to 6, the embodiment of the utility model provides a novel net pressing mechanism of a net puller, which comprises a cross beam 1, a support frame 8, a pressing cylinder 2, a pre-pressing cylinder 5, an upper pressing bar 6 and a lower pressing bar 7.

Specifically, nine support frames 8 are evenly spaced and welded on the rear side of the top of the cross beam 1, the support frames 8 are used for supporting a cylinder fixing plate 9, a compression cylinder 2, a pre-compression cylinder 5 and an upper pressing bar 6, the whole support frames 8 are L-shaped, the bottoms of the support frames 8 are welded with the cross beam 1, the tops of the support frames are arranged in parallel with the cross beam 1, and cylinder mounting plates with the lengths identical to the cross beam 1 are welded and fixed below the tops of the support frames 8.

The cylinder mounting plate is provided with a plurality of compression cylinders 2 and at least two pre-compression cylinders 5, specifically, the number of the compression cylinders 2 and the number of the pre-compression cylinders 5 are properly adjusted according to the lengths of the upper pressing bar 6 and the lower pressing bar 7, and the longer the lengths of the upper pressing bar 6 and the lower pressing bar 7, the more the number of the compression cylinders 2 and the pre-compression cylinders 5 are needed. In this embodiment, six compressing cylinders 2 and two pre-compressing cylinders 5 are disposed on the cylinder mounting plate, wherein the two pre-compressing cylinders 5 are disposed between the first pre-compressing cylinder 5 and the second pre-compressing cylinder 5 and between the fifth pre-compressing cylinder 5 and the sixth pre-compressing cylinder 5 respectively, and the setting positions of the pre-compressing cylinders 5 are the same as the number of settings, and are set according to the lengths of the upper pressing bar 6 and the lower pressing bar 7, so that the pre-compressing effect is ensured.

The front side of the top of the cross beam 1 is welded with a layering groove 12, a lower layering 7 is arranged in the layering groove 12, a cross rod 10 is transversely arranged below the cylinder mounting plate, the bottom of the cross rod 10 is also welded with the layering groove 12, an upper layering 6 is arranged in the layering groove 12, the upper layering 6 and the lower layering 7 are oppositely arranged, and both the upper layering 6 and the lower layering 7 are provided with compacting teeth and can be mutually meshed. Wherein the upper pressing strip 6, the lower pressing strip 7, the cross bar 10, the cylinder mounting plate and the cross beam 1 have the same length.

Compared with the normal installation structure of the compression cylinder 2 in the prior art, the technical scheme of the utility model adopts the inverted installation structure of the compression cylinder 2, namely the piston rod of the compression cylinder 2 is vertically downwards arranged, and the cylinder body is fixed above the cylinder mounting plate.

Wherein, the piston rod of pre-compaction cylinder 5 is outer tooth formula to this is fixed with horizontal pole 10 spiro union, in addition, still installs reinforcing plate 13 between the piston rod of pre-compaction cylinder 5 and the horizontal pole 10, and the connection steadiness between piston rod and the horizontal pole 10 of pre-compaction cylinder 5 can be guaranteed to reinforcing plate 13.

The piston rod of the compression cylinder 2 is an inner tooth type, and a compression bolt 4 is screwed in the bottom of the piston rod.

Preferably, the protection backing plate 11 is further arranged above the cross rod 10, the protection backing plate 11 is located at the bottom of a piston rod of the compression cylinder 2, the protection backing plate 11 is made of stainless steel, and the cross rod 10 can be protected from being damaged under the pressure of the top of the compression bolt 4.

The beneficial effects brought by the utility model are as follows:

according to the novel net pressing mechanism of the net puller, the pressing cylinder 2 is inverted, so that the piston rod directly stretches downwards, compared with the existing normal pressing cylinder 2, no redundant energy is consumed in the pressing process, the pressure can be completely and vertically applied to the upper pressing strip 6, the net pressing function can be realized, meanwhile, the energy consumption required by the driving cylinder can be reduced, namely under the condition of generating the same pressure, the inverted pressing cylinder 2 in the technical scheme of the utility model has less energy consumption compared with the pressing cylinder 2 with the connecting block 3 in the normal installation in the prior art, and meanwhile, a firmer net pressing clamping effect is provided.

Working principle:

as shown in fig. 3-6, in the to-be-operated state of the screen pressing mechanism in the embodiment of the present utility model, the pre-pressing cylinder 5 and the pressing cylinder 2 are not operated, and in the pre-fixed state of the screen pressing mechanism as shown in fig. 7-8, the pre-pressing cylinder 5 is operated, the piston rod of the pre-pressing cylinder 5 extends downward, and the piston rod of the pre-pressing cylinder 5 drives the cross rod 10 and the upper pressing strip 6 to move toward the lower pressing strip 7 until the screen is pre-clamped by the upper pressing strip 7 and the lower pressing strip 7.

As shown in fig. 9-10, in the pressing state of the screen pressing mechanism, after the screen is pre-clamped by the upper and lower press strips 7, the pressing cylinder 2 works after confirming that the screen position is correct, and the piston rod of the pressing cylinder 2 synchronously moves vertically downwards until the pressing bolt 4 abuts against the protective pad 11, and at this time, the upper press strip 6 and the lower press strip 7 are completely meshed, and the printing screen is clamped.

The foregoing description and shows the general principles, features and advantages of the utility model. It will be appreciated by persons skilled in the art that the present utility model is not limited to the embodiments described above, but is capable of numerous variations and modifications without departing from the essential spirit and scope of the utility model, which are intended to fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The net pressing mechanism of the net puller is characterized by comprising a cross beam (1), wherein a plurality of supporting frames (8) are uniformly arranged on one side of the cross beam (1), a lower pressing bar (7) is arranged on the other side of the cross beam, an air cylinder fixing plate (9) is arranged on the supporting frames (8), a plurality of pressing air cylinders (2) and at least two pre-pressing air cylinders (5) are inversely arranged and fixed on the air cylinder fixing plate (9), and piston rods of the pressing air cylinders (2) and the pre-pressing air cylinders (5) are downwards arranged;

the piston rod of the pre-pressing cylinder (5) is connected with an upper pressing bar (6) corresponding to the lower pressing bar (7), and the bottom of the piston rod of the pressing cylinder (2) is connected with a pressing bolt (4).

2. The net hauler mechanism according to claim 1, wherein the upper pressing bar (6), the lower pressing bar (7) and the cross beam (1) are identical in length.

3. The net pressing mechanism of the net pulling machine according to claim 1, further comprising a cross rod (10), wherein the upper pressing bar (6) is fixed to the bottom of the cross rod (10), and a piston rod of the pre-pressing cylinder (5) is connected with the cross rod (10).

4. A net pressing mechanism of a net drawing machine according to claim 3, characterized in that a protective backing plate (11) is further arranged above the cross bar (10), and the protective backing plate (11) is positioned at the bottom of a piston rod of the pressing cylinder (2).

5. A net pressing mechanism of a net drawing machine according to claim 3, wherein a piston rod of the pre-pressing cylinder (5) is of an outer tooth shape, and the bottom of the piston rod is fixedly connected with a cross rod (10) in a threaded manner.

6. A net pressing mechanism of a net puller according to claim 3, wherein the bottom of the cross bar (10) and the top of the cross bar (1) are respectively provided with a pressing bar groove (12), and the upper pressing bar (6) and the lower pressing bar (7) are respectively arranged in the pressing bar grooves (12).

7. Net pressing mechanism of net pulling machine according to claim 5, characterized in that a reinforcing plate (13) is also installed between the piston rod of the pre-pressing cylinder (5) and the cross rod (10).

8. The net pressing mechanism of the net drawing machine according to claim 1, wherein a piston rod of the pressing cylinder (2) is of an inner tooth shape, and a pressing bolt (4) is screwed at the bottom of the piston rod.