Rapid screen changing mechanism of screen printing machine

Abstract

The utility model relates to the technical field of printing machines, and discloses a rapid screen changing mechanism of a screen printing machine, which comprises two support frames, and a replacing assembly is arranged in each support frame. The replacement assembly comprises a plurality of mounting holes, the mounting holes are formed in one side of the inner wall of the support frame, fixing rings are fixedly connected into the mounting holes, pushing springs are fixedly connected into the mounting holes, pushing blocks are fixedly connected to one ends of the pushing springs, and the pushing blocks are slidably connected into the fixing rings and the mounting holes. According to the utility model, the screen printing plate on the screen printing machine can be quickly replaced through the matching of the bracket frame and the bevel plate, the screen printing plate can be stably limited through the limiting rod, the process does not need to depend on pneumatic pushing, the screen taking problem caused by air cylinder faults is effectively avoided, meanwhile, the tedious step of manually screwing bolts to disassemble the screen printing plate is also omitted, and the working efficiency is improved. And the mounting space can be flexibly adjusted according to the actual length of the screen printing plate, so that screen printing plates with different sizes can be adapted.

Description

TECHNICAL FIELD

[0001] The utility model relates to printing machine technical field especially relates to silk screen printing machine quick screen changing mechanism. BACKGROUND

[0002] The silk screen printing machine is a kind of machine using silk screen printing plate to print, and it is a kind of printing machine, which transfers power through transmission mechanism, so that squeegee plate extrudes ink and silk screen printing plate in movement, and squeegee plate and silk screen printing plate form a printing line, and ink leaks from the printing line to the printing material through the screen hole of silk screen under the extrusion of squeegee plate, which is widely used in printing text and image, and it is a kind of powerful and adaptable printing equipment, which plays an important role in many industries.

[0003] According to the patent with the publication number CN213798644U, a kind of silk screen printing machine is disclosed, when printing multiple inks, it needs multi-color silk screen printing equipment or repeatedly printing, which not only increases production cost, but also greatly increases the failure rate, generally multiple ultraviolet irradiation causes paper deformation, ink brittle, misregistration etc., so the ink supply of different printing area squeegee ink return device is different, to realize one screen board multiple ink supply printing, according to printing color is divided into multiple sections, according to the length of screen board, adjust squeegee knife length angle parameter, can print different inks, simple and compact structure, low manufacturing cost, strong universality, stable and reliable, installation is quick, therefore, it is superior in technicality, practicality and economy.

[0004] The above-mentioned printing machine is convenient to realize one screen board multiple ink supply printing, after silk screen printing, the silk screen usually needs to be replaced, and the existing technology usually uses a cylinder to fix the screen plate, if the cylinder is damaged or fails, it is difficult to take out the screen plate from the silk screen printing machine, and during manual screen changing, bolts are usually used to fix the screen plate to change the screen, which requires a lot of force during screwing, and the operation mode is time-consuming and inconvenient for quick screen changing. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the shortcomings in the prior art, and provides a silk screen printing machine quick screen changing mechanism.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a silk screen printing machine quick screen changing mechanism, comprising two support frames, the inside of the support frame is provided with a replacement assembly.

[0007] The replacement assembly comprises a plurality of mounting holes, the mounting holes are arranged on one side of the inner wall of the support frame, a fixing ring is fixedly connected to the inside of the mounting hole, a push spring is fixedly connected to the inside of the mounting hole, one end of the push spring is fixedly connected with a push block, the push block is slidably connected to the inside of the fixing ring and the mounting hole, a plurality of angle plates are fixedly connected to one side of the push block, a mesh frame is slidably connected to the inside of the two support frames, and a silk screen surface is arranged in the mesh frame.

[0008] As a further description of the above technical solution:

[0009] A plurality of hole grooves are arranged on the upper surface of the mesh frame, two protective boxes are fixedly installed on the upper surface of the support frame, a combination plate is slidably connected to the inside of the protective box, and a plurality of limiting rods are slidably connected to the upper surface of the protective box.

[0010] As a further description of the above technical solution:

[0011] The combination plate is fixedly connected to the middle part of the plurality of limiting rods, a plurality of fastening springs are fixedly connected to the upper surface of the combination plate, one end of the plurality of fastening springs is fixedly connected to the inner wall of the protective box, one end of the plurality of limiting rods is fixedly connected with a connecting plate, and a pull rod is fixedly connected to the middle part of the two connecting plates.

[0012] As a further description of the above technical solution:

[0013] The outer side of the two support frames is provided with an adjusting assembly, the adjusting assembly comprises an outer frame, the outer frame is slidably connected to the outside of the two support frames, a fixed frame is fixedly connected to one side of the outer frame, and a bidirectional screw rod is rotatably connected to one side of the outer frame.

[0014] As a further description of the above technical solution:

[0015] A worm wheel is fixedly connected to the middle part of the bidirectional screw rod, a worm is rotatably connected to the inner wall of the fixed frame, and the worm and the worm wheel are in meshing connection.

[0016] As a further description of the above technical solution:

[0017] One end of the worm is fixedly connected with a rotating handle, the rotating handle is rotatably connected to one side of the fixed frame, and two connecting frames are threadedly connected to the outside of the bidirectional screw rod.

[0018] As a further description of the above technical solution:

[0019] One end of the connecting frame is fixedly connected with a connecting block, and one side of the connecting block is fixedly connected to one side of the support frame.

[0020] The utility model has the advantages of:

[0021] 1. The utility model discloses a replaceable assembly is set, utilize the cooperation of support frame and angle plate to help the quick replacement of screen printing machine net plate, and utilize the limiting rod to be convenient for the net plate to limit, when the screen printing machine is changed, need not rely on pneumatic push, reduced because the cylinder breaks down and leads to the phenomenon that net plate is difficult to take out from the screen printing machine, and need not manual screw bolt and dismount net plate, thereby when installing, reduced because the screw bolt and the screen changing time of time consumption, help to improve the screen changing efficiency.

[0022] 2. The utility model discloses a replaceable assembly is set, utilize the cooperation of support frame and angle plate to help the quick replacement of screen printing machine net plate, and utilize the limiting rod to be convenient for the net plate to limit, when the screen printing machine is changed, need not rely on pneumatic push, reduced because the cylinder breaks down and leads to the phenomenon that net plate is difficult to take out from the screen printing machine, and need not manual screw bolt and dismount net plate, thereby when installing, reduced because the screw bolt and the screen changing time of time consumption, help to improve the screen changing efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The overall structure schematic diagram for the utility model is provided;

[0024] Figure 2 The support frame structure schematic diagram for the utility model is provided;

[0025] Figure 3 The angle plate structure schematic diagram for the utility model is provided;

[0026] Figure 4 The hole groove structure schematic diagram for the utility model is provided;

[0027] Figure 5 The limiting rod structure schematic diagram for the utility model is provided;

[0028] Figure 6 The worm wheel connecting place local structure drawing for the utility model is provided.

[0029] Legend:

[0030] 1, support frame;2, mounting hole;3, fixed ring;4, push spring;5, push block;6, angle plate;7, net frame;8, silk screen surface;9, hole groove;10, protection box;11, combination board;12, limiting rod;13, fastening spring;14, connecting plate;15, pull rod;16, outer frame;17, fixed frame;18, bidirectional screw;19, worm wheel;20, worm;21, handle;22, connecting frame;23, connecting block. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of the present application.

[0032] As shown in the accompanying Figures 1-6 The present application provides an embodiment: a screen printing machine rapid screen changing mechanism, comprising two support frames 1, the inside of the support frame 1 is provided with a replacement assembly;

[0033] The replacement assembly comprises a plurality of mounting holes 2, the plurality of mounting holes 2 are formed on the inner wall side of the support frame 1, the inside of the mounting hole 2 is fixedly connected with a fixing ring 3, the inside of the mounting hole 2 is fixedly connected with a push spring 4, one end of the push spring 4 is fixedly connected with a push block 5, the push block 5 is slidingly connected in the inside of the fixing ring 3 and the mounting hole 2, one side of the plurality of push blocks 5 is fixedly connected with an angle plate 6, the inside of the two support frames 1 is slidingly connected with a screen frame 7, the inside of the screen frame 7 is provided with a screen surface 8, the mounting hole 2 is used for installing the push spring 4, the fixing ring 3 is convenient for limiting the movement of the push block 5, the angle plate 6 is convenient for transmitting the pushing force to the side surface of the screen plate, so that the screen plate is installed and fastened.

[0034] As shown in the accompanying Figure 4 The upper surface of the screen frame 7 is provided with a plurality of hole grooves 9, which is convenient for the clamping of the limiting rod 12.

[0035] As shown in the accompanying Figure 5 The upper surface of the support frame 1 is fixedly provided with two protective boxes 10, the inside of the protective box 10 is slidingly connected with a combination plate 11, the upper surface of the protective box 10 is slidingly connected with a plurality of limiting rods 12, the combination plate 11 is fixedly connected in the middle of the plurality of limiting rods 12, the upper surface of the combination plate 11 is fixedly connected with a plurality of fastening springs 13, one end of the plurality of fastening springs 13 is fixedly connected with the inner wall of the protective box 10, one end of the plurality of limiting rods 12 is fixedly connected with a connecting plate 14, the middle of the two connecting plates 14 is fixedly connected with a pull rod 15, the protective box 10 is used for protecting the fastening spring 13, and is convenient for installing the limiting rod 12, the limiting rod 12 is inserted into the inside of the hole groove 9, which is convenient for limiting the screen plate.

[0036] As shown in the accompanying Figure 6As shown, the outer side of the two support frames 1 is provided with an adjusting assembly, the adjusting assembly comprises an outer frame 16 which is slidingly connected outside the two support frames 1, one side of the outer frame 16 is fixedly connected with a fixed frame 17, one side of the outer frame 16 is rotatably connected with a bidirectional screw rod 18, the middle part of the bidirectional screw rod 18 is fixedly connected with a worm gear 19, the inner wall of the fixed frame 17 is rotatably connected with a worm 20, the worm 20 and the worm gear 19 are meshingly connected, one end of the worm 20 is fixedly connected with a handle 21, the handle 21 is rotatably connected on one side of the fixed frame 17, the setting of the worm 20 and the worm gear 19 facilitates the rotation of the bidirectional screw rod 18 by the handle 21.

[0037] As shown in the accompanying drawings Figure 5 As shown, the outer part of the bidirectional screw rod 18 is threadedly connected with two connecting frames 22, one end of the connecting frame 22 is fixedly connected with a connecting block 23, one side of the connecting block 23 is fixedly connected on one side of the support frame 1, the outer part of the bidirectional screw rod 18 is provided with opposite direction threads, the connecting frame 22 facilitates driving the connecting block 23 to move the support frame 1.

[0038] Working principle: when in use, the outer frame 16 is fixed on the printing platform, then the screen surface 8 is tightly adhered to the screen frame 7 after being stretched, the holes and grooves 9 are opened on the upper surface of the screen frame 7 in advance, then the screen formed by the screen surface 8 and the screen frame 7 is installed on the replacement assembly, the screen frame 7 is slidingly inserted into the inside of the two support frames 1, when slidingly inserted, the two side angle plates 6 will be moved under the extrusion force, so as to extrude the push block 5 and the push spring 4, when the push spring 4 is pressed, it will generate a rebounding pushing force, the pushing force is transmitted from the push block 5 to the angle plate 6, the angle plate 6 will transmit the pushing force to the two sides of the installed screen frame 7, extruding the screen frame 7, improving the fastening force of the screen frame 7 during installation, then the pull rod 15 is pulled, driving the two connecting plates 14 to be pulled up at the same time, driving one end of the multiple limiting rods 12 on the two sides to move into the inside of the protection box 10, facilitating the passing of the screen plate, when the screen plate is completely installed into the inside of the two support frames 1, the pull rod 15 is loosened, after the push spring 4 pushes the combined plate 11, the combined plate 11 will push the multiple limiting rods 12 into the inside of the holes and grooves 9, clamping with the holes and grooves 9, limiting the screen plate, completing the installation of the screen screen, when disassembling, the above operation is reversed;

[0039] When a longer size screen plate needs to be installed, the handle 21 is rotated, driving the worm 20 to rotate, under the meshing action of the worm 20 and the worm gear 19, the worm gear 19 is driven to rotate, the worm gear 19 drives the bidirectional screw rod 18 to rotate, because the outer part of the bidirectional screw rod 18 is provided with opposite direction threads, under the action of the opposite direction threads, the two connecting frames 22 on the two sides are driven to move in opposite directions, under the connection of the connecting block 23, the two support frames 1 on the two sides are driven to move away from each other, so as to facilitate the lengthening of the internal capacity of the two support frames 1, according to the appropriate size of the screen plate, the flexibility of the replacement assembly is improved.

[0040] It should be pointed out finally that: the above only for the preferred embodiments of the present application have, and not for limiting the present application, although the present application is described in detail with reference to the foregoing embodiments, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of protection of the present application.

Claims

1. A quick screen changing mechanism for a screen printing machine comprising two support frames (1), characterized in that: The inside of the support frame (1) is provided with a replacement assembly; The replacement assembly comprises a plurality of mounting holes (2), a plurality of mounting holes (2) are arranged on the inner wall of the support frame (1), the inside of the mounting hole (2) is fixedly connected with a fixed ring (3), the inside of the mounting hole (2) is fixedly connected with a push spring (4), one end of the push spring (4) is fixedly connected with a push block (5), the push block (5) is slidingly connected in the inside of the fixed ring (3) and the mounting hole (2), a plurality of push blocks (5) are fixedly connected with an angle plate (6) on one side, the inside of the two support frames (1) is slidingly connected with a mesh frame (7), the inside of the mesh frame (7) is provided with a silk screen surface (8).

2. The screen printing press quick change screen mechanism of claim 1 wherein: The upper surface of the mesh frame (7) is provided with a plurality of hole grooves (9), the upper surface of the support frame (1) is fixedly connected with two protective boxes (10), the inside of the protective box (10) is slidingly connected with a combination plate (11), the upper surface of the protective box (10) is slidingly connected with a plurality of limiting rods (12).

3. The screen printing press quick change screen mechanism of claim 2 wherein: The combination plate (11) is fixedly connected in the middle of the plurality of limiting rods (12), the upper surface of the combination plate (11) is fixedly connected with a plurality of fastening springs (13), one end of the plurality of fastening springs (13) is fixedly connected to the inner wall of the protective box (10), one end of the plurality of limiting rods (12) is fixedly connected with a connecting plate (14), the middle of the two connecting plates (14) is fixedly connected with a pull rod (15).

4. The screen printer quick change mechanism of claim 1, wherein: The outer side of the two support frames (1) is provided with an adjusting assembly, the adjusting assembly comprises an outer frame (16), the outer frame (16) is slidingly connected to the outside of the two support frames (1), one side of the outer frame (16) is fixedly connected with a fixed frame (17), one side of the outer frame (16) is rotatably connected with a bidirectional screw rod (18).

5. The screen printer quick change mechanism of claim 4, wherein: The middle of the bidirectional screw rod (18) is fixedly connected with a worm wheel (19), the inner wall of the fixed frame (17) is rotatably connected with a worm (20), the worm (20) and the worm wheel (19) are meshed.

6. The screen printer quick change mechanism of claim 5, wherein: One end of the worm (20) is fixedly connected with a rotating handle (21), the rotating handle (21) is rotatably connected to one side of the fixed frame (17), the outside of the bidirectional screw rod (18) is threadedly connected with two connecting frames (22).

7. The screen printer quick change mechanism of claim 6, wherein: One end of the connecting frame (22) is fixedly connected with a connecting block (23), one side of the connecting block (23) is fixedly connected to one side of the support frame (1).

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