CN211730621U

CN211730621U - Rocker arm type screen lifting mechanism of screen printing machine

Info

Publication number: CN211730621U
Application number: CN202020074393.1U
Authority: CN
Inventors: 冯国明
Original assignee: Dongguan Le Magao Printing Machinery Co ltd
Current assignee: Dongguan Le Magao Printing Machinery Co ltd
Priority date: 2020-01-14
Filing date: 2020-01-14
Publication date: 2020-10-23
Anticipated expiration: 2030-01-14

Abstract

The utility model discloses a rocking arm type screen lifting mechanism of a screen printing machine, which is arranged on the upper part of a machine case of a small-sized plane screen printing machine and comprises a bearing mechanism, a cylinder component, a sliding seat, a rocking arm bracket and a printing head base plate, wherein the bearing mechanism is fixed on the upper end of the machine case and is fixedly connected with the cylinder component; one end of the rocker arm bracket is fixed on the bearing mechanism, and the other end of the rocker arm bracket is sleeved with a rotating shaft fixed on the sliding seat; the printing head seat plate is arranged at one end of the sliding seat, and the sliding seat rotates around the rotating shaft under the driving of the first air cylinder, so that the printing head seat plate is driven to realize rocker arm type movement; the application abandons traditional up-and-down motion mode, utilizes the rocking arm formula to lift the net mechanism and replace traditional otter board vertical lift and lift the net to save silk screen printing ink, trade the net and wash the nimble convenience of silk screen board.

Description

Rocker arm type screen lifting mechanism of screen printing machine

Technical Field

The utility model relates to a silk screen printing machine product structure field especially relates to a silk screen printing machine rocking arm formula lifts net mechanism.

Background

The screen printing machine is a machine for printing by using screen printing plate, belonging to a kind of printing machine. A screen printer is a machine that prints characters and images, and is a generic name of a machine or apparatus for producing printed matters. The silk screen printing machine belongs to the more representative printing equipment in the porous printing machine, and the material for manufacturing the silk screen can be nylon wire, copper wire, steel wire or stainless steel wire and the like besides real silk; can be divided into a plane screen printer, a curved screen printer, a rotary screen printer and the like; in the process of silk-screen printing of the traditional silk-screen printing machine, the silk-screen printing speed of the common semi-automatic silk-screen printing machine and the manual hand-printing table is low, the efficiency is low, and the labor intensity is high; the manual hand printing table is flexible and convenient in hand printing, but the reject ratio of manual silk printing is high, the subsequent processing workload is large, the labor capacity is large, and the production efficiency is low; the copying manual silk-screen printing in the semi-automatic silk-screen machine has better silk-screen printing effect and reduced manpower labor amount, and the printing speed is slow due to the vertical movement mode and the large distance between the oil scraping knife and the oil return knife, so the method is inconvenient for silk-screen printing of small workpieces, is not suitable for small silk-screen plates and wastes silk-screen printing ink; therefore, how to change the up-and-down movement mode of the traditional screen printer so as to improve the printing efficiency is a technical problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

To the weak point that exists among the above-mentioned technique, the utility model provides a silk screen printing machine rocking arm formula is lifted the net mechanism abandons traditional up-and-down motion mode, utilizes the rocking arm formula to lift the net mechanism and replace traditional otter board vertical lift and lift the net to save silk screen printing ink, trade the net and wash the nimble convenience of silk screen board.

In order to achieve the purpose, the utility model provides a rocking arm type screen lifting mechanism of a screen printing machine, which is arranged on the upper part of a machine case of a small-sized plane screen printing machine, and comprises a bearing mechanism, a cylinder component, a sliding seat, a rocking arm support and a printing head seat plate, wherein the bearing mechanism is fixed at the upper end of the machine case and is fixedly connected with the cylinder component, the cylinder component comprises a first cylinder and a second cylinder, the lower end of the first cylinder is fixedly connected with the bearing mechanism through a support, and the upper end of the first cylinder is fixedly connected with the sliding seat through a connecting rod; one end of the rocker arm bracket is fixed on the bearing mechanism, and the other end of the rocker arm bracket is sleeved with a rotating shaft fixed on the sliding seat; the printing head seat plate is arranged at one end of the sliding seat, and the sliding seat rotates around the rotating shaft under the driving of the first air cylinder, so that the printing head seat plate is driven to realize rocker arm type movement.

Preferably, the supporting mechanism comprises a bottom plate and a middle plate, the bottom plate and the middle plate are placed in parallel, a rocker arm support and a buffer column are fixedly arranged at the upper part of the middle plate, the buffer column is positioned on a central axis of the rocker arm support, a buffer is also fixedly arranged on the side surface of the middle plate, and the buffer is positioned on the central axis between the rocker arms; one side of the bottom plate facing the buffer is provided with a groove, and the support is accommodated in the groove.

Preferably, the bottom plate and the intermediate plate are fixedly connected in series by adopting a fulcrum shaft and a screw rod, one end of the fulcrum shaft is fixedly connected with the bottom plate, the other end of the fulcrum shaft penetrates through the intermediate plate to be connected with the transverse shaft, one end of the screw rod is fixed on the bottom plate, the other end of the screw rod is connected with the transverse shaft by a knob, and the intermediate plate is driven to move up and down by rotating the knob.

Preferably, the second cylinder is located beside the sliding seat, a movable rod of the second cylinder is fixedly connected with the printing head seat plate, and the printing head seat plate moves back and forth under the driving of the second cylinder.

Preferably, support plates are arranged on two sides of the sliding seat, one end of each support plate is sleeved on the rotating shaft, the other end of each support plate is fixedly connected with the printing head seat plate, and a connecting hole is formed in each support plate.

Preferably, a limiting column is arranged in the connecting hole, the limiting column penetrates through the sliding seat to connect the two support plates together, a limiting groove is formed in the limiting column, and a smooth movable surface is arranged beside the limiting groove.

Preferably, the printing head seat plate comprises a dovetail, a scraper and a net clamp bottom plate, the scraper is arranged at the lower end of the dovetail and is movably connected with the dovetail, an oil return cylinder is arranged between the net clamp bottom plate and the scraper to be connected, one end of the oil return cylinder is fixed to the net clamp bottom plate, the other end of the oil return cylinder is connected with the scraper, and the scraper moves up and down under the driving of the oil return cylinder.

Preferably, the upper end of the dovetail is provided with a regulating valve, the lower end of the regulating valve is provided with a regulating rod, and the moving part fixed with the scraper is abutted against the regulating rod.

The utility model has the advantages that: compared with the prior art, the utility model provides a screen printing machine rocking arm formula is lifted net mechanism adopts special structure setting, under the drive of first cylinder, utilize the sliding seat to surround the rotation axis and move, thereby realize the rocking arm formula motion of printer head bedplate, meanwhile, set up the second cylinder, realize the seesaw of forked tail, thereby drive the scraper of forked tail lower extreme and move, in addition still be equipped with the oil return cylinder by the scraper, utilize the up-and-down motion of oil return cylinder drive scraper, still set up the governing valve, utilize the governing valve to restrict the distance of scraper up-and-down motion, cooperate the oil return cylinder, thereby the screen printing board of different thickness of adaptation, this application utilizes rocking arm formula to lift net structure and replaces traditional otter board vertical lift and lift the net, simulate artifical stamp pad silk screen, simultaneously for the stamp pad, can reduce the amount of labour, improve the silk screen printing speed of traditional screen printing machine, be suitable for, Saving screen printing ink, flexibly and conveniently replacing and cleaning the screen plate, improving the screen printing efficiency and saving the machine adjusting time.

Drawings

FIG. 1 is a front view of the structure of the present invention;

FIG. 2 is a side view of the structure of the present invention;

FIG. 3 is a schematic view of the carrying structure of the present invention;

fig. 4 is a front view of the structure of the rocker arm member of the present invention;

fig. 5 is a rear view of the structure of the rocker arm member of the present invention.

The main element symbols are as follows:

1. receiving mechanism 2, cylinder component 3, sliding seat 4 and rocker arm bracket

5. Printing head base plate 6, support 7, connecting rod 11, bottom plate

12. Intermediate plate 13, horizontal shaft 14, knob 15, support shaft

16. Screw rod 17, buffer column 18, buffer 21 and first cylinder

22. Second cylinder 31, rotary shaft 32, support plate 33, and connection hole

34. Limiting column 35, limiting groove 51, net clamp bottom plate 52 and scraper

53. Dovetail 54, governing valve 55, oil return cylinder.

Detailed Description

In order to make the present invention clearer, the present invention will be further described with reference to the accompanying drawings.

Referring to fig. 1-5, the present invention provides a rocking arm type screen lifting mechanism for a screen printing machine, which is installed on the upper portion of a machine box of a small-sized flat screen printing machine, and comprises a receiving mechanism 1, a cylinder assembly 2, a sliding seat 3, a rocking arm support 4 and a printing head seat plate 5, wherein the receiving mechanism 1 is fixed on the upper end of the machine box and is fixedly connected with the cylinder assembly 2, the cylinder assembly 2 comprises a first cylinder 21 and a second cylinder 22, the lower end of the first cylinder 21 is fixedly connected with the receiving mechanism 1 through a support 6, and the upper end is fixedly connected with the sliding seat 3 through a connecting rod 7; one end of the rocker arm bracket 4 is fixed on the bearing mechanism 1, and the other end is sleeved with a rotating shaft 31 fixed on the sliding seat 3; the print head seat plate 5 is disposed at one end of the sliding seat 3, and the sliding seat 3 rotates around the rotating shaft 31 under the driving of the first cylinder 21, so as to drive the print head seat plate 5 to perform a rocker type motion.

In order to achieve the purpose, the supporting mechanism 1 comprises a bottom plate 11 and a middle plate 12, wherein the bottom plate 11 and the middle plate 12 are arranged in parallel, the upper part of the middle plate 12 is fixedly provided with a rocker arm support 4 and a buffer column 17, the buffer column 17 is positioned on the central axis of the rocker arm support 4, the side surface of the middle plate 12 is also fixedly provided with a buffer 18, and the buffer 18 is positioned on the central axis of the rocker arm support 4; one side of the bottom plate 11 facing the buffer 18 is provided with a groove, and the groove is used for accommodating the bracket 6; the bottom plate 11 and the middle plate 12 are fixed together in series by a fulcrum 15 and a screw rod 16, one end of the fulcrum 15 is fixedly connected with the bottom plate 11, the other end of the fulcrum 15 penetrates through the middle plate 12 to be connected with a transverse shaft 13, one end of the screw rod 16 is fixed on the bottom plate 11, the other end of the screw rod is connected with the transverse shaft 13 through a knob 14, and the middle plate 12 is driven to move up and down by rotating the knob 14. In a specific embodiment, the buffer column is arranged at the lower part of the sliding seat, and the buffer is arranged at the lower part of the connecting rod, so that when the printing head seat plate performs rocker arm type movement, the sliding seat is contacted with the buffer column, and the buffer is contacted with the connecting rod, thereby effectively reducing the impact force on the bearing mechanism and better protecting the bearing mechanism; secondly, in the using process, the bottom plate is fixed at the upper end of the case, so that a groove is particularly formed in the bottom plate, and the first cylinder can conveniently drive the bracket to move; then, a screw rod and a support shaft are arranged, the support shaft is of a telescopic structure, the screw rod is rotated by a knob, and the intermediate plate is lifted or lowered by the transmission effect of the screw rod, so that the height of the buffer device is adjusted, and the movement angle of the rocker arm of the printing head bottom plate can be adjusted.

The second cylinder 22 is positioned beside the sliding seat 3, a movable rod of the second cylinder 3 is fixedly connected with the printing head seat plate 5, and the printing head seat plate 5 realizes the back-and-forth movement under the driving of the second cylinder 22; two sides of the sliding seat 3 are provided with support plates 32, one end of each support plate 32 is sleeved on the rotating shaft 31, the other end is fixedly connected with the printing head seat plate 5, and the support plates 32 are further provided with connecting holes 33. A limiting column 34 is placed in the connecting hole 33, the limiting column 34 penetrates through the sliding seat 3 to connect the two support plates together, a limiting groove 35 is arranged on the limiting column 34, and a smooth movable surface is arranged beside the limiting groove 34. In the embodiment, the second cylinder is used for pushing the printing head seat plate to move back and forth, the sliding seat is kept still, and the polish rod penetrating through the sliding seat is driven by the second cylinder to move so as to push the printing head seat plate to move; the purpose of setting up spacing post is in order to utilize the motion of spacing post restriction polished rod, when the spacing recess joint of spacing post was in the connecting hole, the motion of spacing post restriction polished rod to prevent the motion of printer head bedplate, reach the purpose of locking.

The printing head seat plate 5 comprises a dovetail 53, a scraper 52 and a net clamp bottom plate 51, wherein the scraper 52 is arranged at the lower end of the dovetail 53 and is movably connected with the dovetail 52, the net clamp bottom plate 51 is connected with the scraper 52 through an oil return cylinder 55, one end of the oil return cylinder 55 is fixed on the net clamp bottom plate 51, the other end of the oil return cylinder 55 is connected with the scraper 52, and the scraper 52 moves up and down under the driving of the oil return cylinder 55; the upper end of the dovetail 53 is also provided with an adjusting valve 54, the lower end of the adjusting valve 54 is provided with an adjusting rod, and the moving part fixed with the scraper 52 is abutted against the adjusting rod. In this embodiment, utilize the oil return cylinder to realize the up-and-down motion of scraper, utilize the cooperation of governing valve and regulation pole, realize the restriction to the scraper up-and-down motion to can be more meticulous in the course of working.

The utility model has the advantages that:

1) the buffer assembly is arranged, so that the impact on the bearing mechanism can be effectively reduced, and the service life is prolonged;

2) each moving structure is provided with a limiting device, so that the moving range is limited, and the aim of fine control is fulfilled.

The above disclosure is only for the specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be made by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A rocker arm type screen lifting mechanism of a screen printing machine is arranged on the upper part of a machine box of a small-sized planar screen printing machine and is characterized by comprising a bearing mechanism, a cylinder assembly, a sliding seat, a rocker arm bracket and a printing head seat plate, wherein the bearing mechanism is fixed at the upper end of the machine box and is fixedly connected with the cylinder assembly; one end of the rocker arm bracket is fixed on the bearing mechanism, and the other end of the rocker arm bracket is sleeved with a rotating shaft fixed on the sliding seat; the printing head seat plate is arranged at one end of the sliding seat, and the sliding seat rotates around the rotating shaft under the driving of the first air cylinder, so that the printing head seat plate is driven to realize rocker arm type movement.

2. The screen printing machine rocker arm type screen lifting mechanism is characterized in that the bearing mechanism comprises a bottom plate and a middle plate, the bottom plate and the middle plate are arranged in parallel, a rocker arm bracket and a buffer column are fixedly arranged at the upper part of the middle plate, the buffer column is positioned on a central axis of the rocker arm bracket, a buffer is also fixedly arranged on the side surface of the middle plate, and the buffer is positioned on the central axis between the rocker arms; one side of the bottom plate facing the buffer is provided with a groove, and the support is accommodated in the groove.

3. The screen printing machine rocker arm type screen lifting mechanism as claimed in claim 2, wherein the bottom plate and the intermediate plate are fixed together in series by using a fulcrum shaft and a lead screw, one end of the fulcrum shaft is fixedly connected with the bottom plate, the other end of the fulcrum shaft passes through the intermediate plate to be connected with the transverse shaft, one end of the lead screw is fixed on the bottom plate, the other end of the lead screw is connected with the transverse shaft through a knob, and the intermediate plate is driven to move up and down by rotating the knob.

4. The screen printing machine rocker arm type screen lifting mechanism as claimed in claim 1, wherein the second cylinder is located beside the sliding seat, a movable rod of the second cylinder is fixedly connected with the print head seat plate, and the print head seat plate is driven by the second cylinder to move back and forth.

5. The screen printing machine rocker arm type screen lifting mechanism as claimed in claim 1, wherein support plates are provided on both sides of the sliding seat, one end of each support plate is sleeved on the rotating shaft, the other end of each support plate is fixedly connected with the printing head seat plate, and the support plates are further provided with connecting holes.

6. The screen printing machine rocker arm type screen lifting mechanism of claim 5, wherein a limiting post is placed in the connecting hole, the limiting post penetrates through the sliding seat to connect the two support plates together, a limiting groove is formed in the limiting post, and a smooth movable surface is arranged beside the limiting groove.

7. The screen printing machine rocker arm type screen lifting mechanism is characterized in that the printing head seat plate comprises a dovetail, a scraper and a screen clamp bottom plate, the scraper is arranged at the lower end of the dovetail and movably connected with the dovetail, an oil return cylinder is connected between the screen clamp bottom plate and the scraper, one end of the oil return cylinder is fixed on the screen clamp bottom plate, the other end of the oil return cylinder is connected with the scraper, and the scraper moves up and down under the driving of the oil return cylinder.

8. The screen printing machine rocker arm type screen lifting mechanism as claimed in claim 7, wherein the upper end of the dovetail is further provided with an adjusting valve, the lower end of the adjusting valve is provided with an adjusting rod, and the moving part fixed with the scraper is abutted with the adjusting rod.