CN220826389U

CN220826389U - Screen printer

Info

Publication number: CN220826389U
Application number: CN202322764733.XU
Authority: CN
Inventors: 唐佳
Original assignee: Jingmen Haofeng Printing Co ltd
Current assignee: Jingmen Haofeng Printing Co ltd
Priority date: 2023-10-16
Filing date: 2023-10-16
Publication date: 2024-04-23
Anticipated expiration: 2033-10-16

Abstract

The utility model relates to a screen printer, which comprises a workbench (1) and a screen printing device arranged on the workbench (1), wherein the screen printing device comprises a printing frame (10), an ink returning knife (11), a doctor blade (12) and a translation cylinder (13), a screen printing plate (15) is arranged in the printing frame (10), one end of the printing frame (10) is movably connected with the workbench (1) through a swing arm (16), and a jacking cylinder (17) for driving the swing arm (16) to swing up and down is arranged on the workbench (1), and the screen printer has the advantages that: the ink returning knife can automatically spread ink on the screen printing plate in the process of moving forwards and backwards, and has simple structure and high printing efficiency.

Description

Screen printer

Technical Field

The utility model relates to the technical field of screen printing, in particular to a screen printer.

Background

The screen printing is to use a screen as a plate base, prepare a screen printing plate with graphics and texts by a photosensitive plate making method, and squeeze ink onto a printing stock through meshes by a scraper during printing.

At present, on the screen printing of widget, mostly staff tiles the thing of waiting to print to the printing platform on, then earlier tile printing ink through the scraper blade, carry out the secondary and promote the scraper blade again and print printing ink extrusion, whole work complex operation, inefficiency.

Disclosure of utility model

The utility model aims to overcome the defects and provide a screen printer.

The utility model comprises a workbench and a screen printing device arranged on the workbench, wherein the screen printing device comprises a printing frame, an ink returning knife, a doctor blade and a translation cylinder, a screen printing plate is arranged in the printing frame, one end of the printing frame is movably connected with the workbench through a swing arm, a jacking cylinder for driving the swing arm to swing up and down is arranged on the workbench, sliding tables are respectively arranged on two sides of the printing frame, a fixed knife rest and a movable knife rest are respectively arranged on the sliding blocks of the sliding tables, the ink returning knife is arranged on the fixed knife rest, the doctor blade is arranged on the movable knife rest, a lifting cylinder for controlling the doctor blade to move up and down is arranged on the fixed knife rest, and the translation cylinder is arranged on the swing arm and drives the ink returning knife and the doctor blade to move back and forth in the printing frame.

The top of the sliding block of the sliding table is provided with a vertical guide groove, and two ends of the movable tool rest are respectively positioned in the corresponding vertical guide grooves.

The ink return knife is movably mounted on the fixed knife rest through the rotating shaft, and an ink return knife limiting block is arranged on the fixed knife rest on the side opposite to the doctor knife.

The top of the front end of the limit push plate is provided with a first inclined plane, and the inner side of the rear end of the limit push plate is provided with a second inclined plane.

A gap is arranged between the ink return knife and the screen printing plate, and the gap is not more than 5mm.

The bottom of the ink returning knife is provided with a bending part which inclines to one side of the ink scraping knife.

The utility model has the advantages that: the ink returning knife can automatically spread ink on the screen printing plate in the process of moving forwards and backwards, and has simple structure and high printing efficiency.

Drawings

Fig. 1 is a schematic diagram of the structure of the present utility model.

Fig. 2 is a schematic diagram of the ink return blade mounting structure.

Fig. 3 is a schematic view of a partially enlarged structure of fig. 1.

Description of the embodiments

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. 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. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the embodiments of the present utility model, it should be noted that, if the terms "upper," "lower," "inner," "outer," and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like in the description of the present utility model, if any, are used for distinguishing between the descriptions and not necessarily for indicating or implying a relative importance.

In the description of the embodiments of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in the drawing, the utility model comprises a workbench 1 and a screen printing device arranged on the workbench 1, wherein the screen printing device comprises a printing frame 10, an ink returning knife 11, a doctor knife 12 and a translation cylinder 13, a screen printing plate 15 is arranged in the printing frame 10, one end of the printing frame 10 is movably connected with the workbench 1 through a swing arm 16, a lifting cylinder 17 for driving the swing arm 16 to swing up and down is arranged on the workbench 1, sliding tables 20 are respectively arranged on two sides of the printing frame 10, a fixed knife rest 21 and a movable knife rest 22 are respectively arranged on the sliding blocks of the sliding tables 20, the ink returning knife 11 is arranged on the fixed knife rest 21, the doctor knife 12 is arranged on the movable knife rest 22, a lifting cylinder 23 for controlling the doctor knife 12 to move up and down is arranged on the fixed knife rest 21, and the translation cylinder 13 is arranged on the swing arm 16 and drives the ink returning knife 11 and the doctor knife 12 to move back and forth in the printing frame 10.

A gap is arranged between the ink returning knife 11 and the screen printing plate 15, when the ink returning knife moves, the piled ink is only paved on the screen printing plate 15, when the translation air cylinder 13 is pulled back, the ink scraping knife 12 is abutted against the screen printing plate 15 to squeeze the ink, otherwise, when the translation air cylinder 13 stretches out, the lifting air cylinder 23 is started, and the ink scraping knife 12 is lifted and is not contacted with the screen printing plate 15.

After printing is finished, the lifting air cylinder 17 is started, and the screen printing device is lifted upwards through the swing arm 16, so that objects to be printed can be conveniently taken and placed.

The top of the sliding block of the sliding table 20 is provided with a vertical guide groove, and two ends of the movable tool rest 22 are respectively positioned in the corresponding vertical guide grooves.

The movable blade holder 22 moves up and down in the vertical guide slot so that the doctor blade 12 moves up and down smoothly.

A pair of limit push plates 24 are arranged on the inner side of the printing frame 10 at one end of the ink return knife 11 in the direction, the limit push plates 24 are movably arranged on the printing frame 10 through springs, the ink return knife 11 is movably arranged on the fixed knife rest 21 through a rotating shaft, and an ink return knife limiting block 25 is arranged on the fixed knife rest 21 at the side opposite to the ink scraping knife 12.

The two sides in the seal frame 10 are provided with a limit push plate 24 mounting groove, and the limit push plate 24 can be arranged in the mounting groove by a certain telescopic space through a spring.

The top of the front end of the limit push plate 24 is provided with a first inclined plane 27, and the inner side of the rear end of the limit push plate 24 is provided with a second inclined plane 28.

When the ink returning knife 11 is pulled back to pass the position of the limit push plate 24, the ink returning knife 11 is blocked by the limit push plate 24 and is forwards inclined, so that the distance between the ink returning knife 11 and the screen printing plate 15 is increased, the position is an ink accumulation position, and the ink returning knife 11 automatically falls back to an initial state after passing through the limit push plate 24.

On the contrary, when the ink returning knife 11 is pushed forward, the ink returning knife 11 cannot roll backwards due to the limitation of the ink returning knife limiting block 25 when passing through the limiting push plate 24, and the ink returning knife 11 can press the limiting push plate 24 inwards to force the ink to pass through, so that the ink stack can be tiled when pushed forward.

When the ink returning knife 11 is pulled back, the first inclined surface 27 is convenient for the ink returning knife 11 to roll forward in a relatively smooth manner, when the ink returning knife 11 is pushed forward, the second inclined surface 28 is convenient for the ink returning knife 11 to gradually increase pressure when the limit push plate 24 is extruded, and the ink returning knife passes through relatively smoothly.

A gap is provided between the ink return blade 11 and the screen plate 15, and the gap is not more than 5mm.

The bottom of the ink return blade 11 is provided with a bending part inclined to one side of the doctor blade 12. When the ink returning knife 11 is used for tiling ink, redundant ink is convenient to concentrate above the bending part, and when the ink returning knife is used for returning, the inclined surface formed at the rear side of the ink returning knife 11 can reduce the scraping back of the ink, so that the ink is more concentrated between the ink returning knife 11 and the ink scraping knife 12.

Claims

1. The utility model provides a screen printer, a serial communication port includes workstation (1) and installs the screen printing device on workstation (1), screen printing device includes seal frame (10), return black sword (11), doctor blade (12) and translation cylinder (13), be equipped with screen printing plate (15) in seal frame (10), the one end of seal frame (10) is through swing arm (16) and workstation (1) swing joint, be equipped with on workstation (1) drive swing arm (16) luffing cylinder (17) of luffing motion, the both sides of seal frame (10) are equipped with slip table (20) respectively, and be equipped with fixed knife rest (21) and movable knife rest (22) on the slider of slip table (20) respectively, return black sword (11) are installed on fixed knife rest (21), doctor blade (12) are installed on movable knife rest (22), be equipped with on fixed knife rest (21) control doctor blade (12) reciprocate lift cylinder (23), translation cylinder (13) are installed on swing arm (16) to drive return black sword (11) and doctor blade (12) in the back of seal frame (10).

2. Screen printer according to claim 1, characterized in that the top of the slide table (20) is provided with a vertical guide slot, and the two ends of the movable knife rest (22) are respectively located in the corresponding vertical guide slots.

3. A screen printer according to claim 1, wherein a pair of limit push plates (24) are provided inside a frame (10) at one end in the direction of the ink return blade (11), the limit push plates (24) are movably mounted on the frame (10) by springs, the ink return blade (11) is movably mounted on a fixed blade holder (21) by a rotary shaft, and an ink return blade limit block (25) is provided on the fixed blade holder (21) at the opposite side to the doctor blade (12).

4. A screen printer according to claim 3, wherein the front end top of the limit push plate (24) is provided with a first inclined surface (27), and the rear end inner side of the limit push plate (24) is provided with a second inclined surface (28).

5. A screen printer according to claim 1, characterized in that a gap is provided between the ink return blade (11) and the screen plate (15), and the gap is not more than 5mm.

6. A screen printer according to claim 5, wherein the bottom of the ink return blade (11) is provided with a bent portion inclined to the doctor blade (12) side.