An automatic screen printing machine for sheet materials

Abstract

This utility model relates to the technical field of screen printing equipment, specifically an automatic screen printing machine for sheet materials. It includes a frame, a linear module a, and an automatic feeding assembly. The frame is equipped with a mounting frame and a conveying assembly. The linear module a is mounted on the frame, and a screen printing assembly is located at the output end of the linear module a. The automatic feeding assembly includes a sub-frame mounted on the frame, a feeding assembly mounted on the sub-frame, and a feeding assembly mounted on the sub-frame. The feeding assembly includes a ball screw rotatably mounted on the sub-frame, a nut seat mounted on the ball screw, a placement plate mounted on the nut seat, multiple extension blocks evenly damped and slidably mounted on the placement plate, and a detachable limiting frame mounted on the sub-frame. This utility model improves the efficiency of screen printing sheet materials by using extension blocks and an adjustable limiting frame to contact the two adjacent edges of the sheet material to fix its position.

Description

Technical Field

[0001] This utility model relates to the field of screen printing equipment technology, and in particular to an automatic screen printing machine for sheet materials. Background Technology

[0002] Screen printing, also known as silkscreen printing or screen printing, is a long-established and widely used stencil printing technique. Its core principle is to use a "silk screen" as a printing plate, and to transfer ink through the pre-set image areas on the screen to the surface of the substrate by external force, thereby forming clear images or patterns.

[0003] Chinese Patent No. CN222947643U discloses a screen printing feeding device for plastic sheets, including a transfer device, a feeding rack disposed on the output end of the transfer device, a lifting module disposed on the feeding rack, and a horizontal shovel module disposed on the feeding rack. The lifting module includes a lifting slide connected vertically to the feeding rack, a lifting power mechanism, and several suction nozzles disposed on the bottom of the lifting slide. The horizontal shovel module includes a shovel blade connected horizontally to the feeding rack and a horizontal shovel power mechanism for driving the shovel blade to slide. This technical solution can ensure that the substrate can be stably separated from the carrier plate each time, and there is no situation where the substrate cannot be adhered. It can reliably and stably automatically feed plastic sheets and other substrates, avoiding the need for manual intervention in the past. The overall screen printing efficiency can be guaranteed, and it is better suited for automatic feeding of plastic sheets and other substrates.

[0004] However, the above technical solution has the following shortcomings: during the sheet material processing, the feeding point of the sheet material is prone to move during the conveying process, which will cause deviations in the subsequent processing of the sheet material. It is necessary to install new positioning components to adjust the position of the sheet material for a second time, which will affect the screen printing efficiency and quality of the sheet material. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing an automatic screen printing machine for sheet materials. This machine fixes the position of the sheet material by setting an extension block and an adjustable limiting frame to contact the two adjacent sides of the sheet material, thereby improving the efficiency of screen printing on sheet materials.

[0006] The technical solution of this utility model is an automatic screen printing machine for sheet materials, comprising: a frame, which is provided with a mounting frame and a conveying assembly; a linear module a, which is disposed on the frame, and a screen printing assembly is disposed at the output end of the linear module a; an automatic feeding assembly, which includes a sub-frame disposed on the frame, a feeding assembly disposed on the sub-frame, and a feeding assembly disposed on the sub-frame; the feeding assembly includes a ball screw disposed on the sub-frame, a rotatable nut seat disposed on the ball screw, a placement plate disposed on the nut seat, a plurality of extension blocks uniformly damped and slidably disposed on the placement plate, and a limiting frame detachably disposed on the sub-frame.

[0007] Preferably, each of the multiple extension blocks is provided with an arc-shaped groove.

[0008] Preferably, the feeding assembly includes a motor mounted on the sub-frame, a gear mounted on the output end of the motor, a rotating mounting shaft mounted on the sub-frame, a gear ring mounted on the mounting shaft, a steering disc mounted on the mounting shaft, and two sets of suction assemblies arranged opposite to each other on the steering disc.

[0009] Preferably, the suction assembly includes an electric cylinder mounted on a steering wheel, a frame mounted on the output end of the electric cylinder, a pipe mounted on the frame, a plurality of suction cups evenly connected to the pipe, and a connecting pipe connected to the pipe.

[0010] Preferably, the screen printing assembly includes a lifting frame disposed at the output end of the linear module a, a linear module b disposed on the lifting frame, two mounting arms disposed side by side on the lifting frame, a screen printing frame disposed at the output end of the linear module b, a ball screw assembly a disposed on each of the two mounting arms, two ball screw assemblies b disposed side by side on the screen printing frame, and a scraper block disposed on each of the two ball screw assemblies b; the two scrapers blocks are distributed relative to each other.

[0011] Preferably, the subframe is provided with a plurality of evenly distributed fixing screw holes.

[0012] Compared with the prior art, the present invention has the following beneficial technical effects:

[0013] When this utility model is used, the screen printing machine is equipped with a controller. The controller coordinates the actions of the servo motor and the linear module through a preset program. During feeding, the position of the limit frame is fixed in advance with bolts. Then, multiple extension blocks slide according to the position of the limit frame, so that the multiple extension blocks support the sheet material. This allows the two adjacent sides of the sheet material to contact and limit the sub-frame and the limit frame, fixing the position of the sheet material and preventing deviation of the screen printing points. This facilitates the screen printing of subsequent screen printing components and improves the screen printing efficiency of the screen printing machine. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0015] Figure 2 for Figure 1 Enlarged view of the structure at point A in the middle;

[0016] Figure 3 This is a schematic diagram of the feeding assembly in an embodiment of the present invention;

[0017] Figure 4 This is a schematic diagram of the feeding component in an embodiment of the present invention.

[0018] Reference numerals: 1. Frame; 2. Conveying assembly; 3. Mounting frame; 4. Lifting frame; 5. Mounting arm; 6. Ball screw assembly a; 8. Screen printing plate; 9. Ball screw assembly b; 10. Scraper block; 11. Screen printing frame; 13. Sub-frame; 15. Feeding assembly; 151. Placement plate; 152. Thread nut seat; 154. Extension block; 155. Limiting frame; 16. Motor; 17. Gear; 18. Mounting shaft; 19. Gear ring; 20. Steering wheel; 21. Electric cylinder; 22. Frame; 23. Suction cup; 24. Connecting pipe. Detailed Implementation

[0019] Example 1

[0020] like Figures 1-4 As shown in the figure, the automatic screen printing machine for sheet material proposed in this embodiment includes a frame 1, a linear module a, and an automatic feeding component. The frame 1 is provided with a mounting frame 3 and a conveying component 2. The linear module a is disposed on the frame 1, and a screen printing component is disposed at the output end of the linear module a. The linear module is a modular drive device that integrates components such as lead screw, guide rail, slider, and motor. Therefore, the screen printing component is disposed on the corresponding slider to realize the position adjustment of the screen printing component.

[0021] The automatic feeding assembly includes a sub-frame 13 mounted on the frame 1, a feeding assembly mounted on the sub-frame 13, and a feeding assembly 15 mounted on the sub-frame 13. The feeding assembly 15 includes a ball screw rotatably mounted on the sub-frame 13, a screw nut seat 152 mounted on the ball screw, a placement plate 151 mounted on the screw nut seat 152, multiple extension blocks 154 uniformly damped and slidably mounted on the placement plate 151, and a limit frame 155 detachably mounted on the sub-frame 13.

[0022] Each of the extension blocks 154 has an arc-shaped groove. The user inserts their finger into the arc-shaped groove to push the extension block 154 to move, thus allowing the extension block 154 to support the sheet material and prevent the sheet material from sliding freely due to its good flexibility. The sub-frame 13 has multiple evenly distributed fixing screw holes. The user adjusts the position of the limiting frame 155 according to the size of the sheet material and the silkscreen position. The user fixes the limiting frame 155 to the desired position by bolts that fit into the multiple fixing screw holes.

[0023] In this embodiment, the screen printing machine is equipped with a controller. The controller coordinates the actions of the servo motor and the linear module through a preset program. When loading the material, the position of the limit frame 155 is fixed in advance with bolts. Then, multiple extension blocks 154 slide according to the position of the limit frame 155, so that the multiple extension blocks 154 support the sheet material. This allows the two adjacent sides of the sheet material to contact and limit the sub-frame 13 and the limit frame 155, fixing the position of the sheet material and preventing deviation of the screen printing points. This facilitates the subsequent screen printing of the screen printing components and improves the screen printing efficiency of the screen printing machine.

[0024] Example 2

[0025] like Figure 1 , Figure 3 and Figure 4 As shown, this embodiment proposes an automatic screen printing machine for sheet materials. Compared with Embodiment 1, in this embodiment, the feeding assembly includes a motor 16 mounted on a sub-frame 13, a gear 17 mounted on the output end of the motor 16, a mounting shaft 18 rotatably mounted on the sub-frame 13, a gear ring 19 mounted on the mounting shaft 18, a steering disk 20 mounted on the mounting shaft 18, and two sets of suction components arranged opposite to each other on the steering disk 20. The motor 16 drives the mounting shaft 18 to rotate 180 degrees through the meshing of the gear 17 and the gear ring 19, so that the suction components move above the conveying assembly 2 respectively. When one suction component is feeding, the other suction component puts down the sheet material, thereby increasing the feeding speed of the sheet material.

[0026] The material suction assembly includes an electric cylinder 21 mounted on a steering wheel 20, a frame 22 mounted on the output end of the electric cylinder 21, a pipe mounted on the frame 22, multiple suction cups 23 evenly connected to the pipe, and a connecting pipe 24 connected to the pipe. The electric cylinder 21 drives the frame 22 to descend, and the frame 22 drives the pipe to descend, thereby connecting the multiple suction cups 23 to the sheet material. A vacuum pump is connected to the connecting pipe 24. The vacuum pump sucks the air between the suction cups 23 and the sheet material, thereby fixing the sheet material to the suction cups 23. This material suction assembly mainly adsorbs sheet materials with smooth surfaces and no holes. At the same time, the motor 16 drives the mounting shaft 18 to rotate alternately in both forward and reverse directions through gear transmission, avoiding the pipe between the vacuum pump and the connecting pipe 24 from becoming entangled.

[0027] Example 3

[0028] like Figure 1 and Figure 2As shown, this embodiment proposes an automatic screen printing machine for sheet materials. Compared to Embodiment 1, in this embodiment, the screen printing assembly includes a lifting frame 4 disposed at the output end of the linear module a, a linear module b disposed on the lifting frame 4, two mounting arms 5 disposed side by side on the lifting frame 4, a screen printing frame 11 disposed at the output end of the linear module b, a ball screw assembly a6 disposed on each of the two mounting arms 5, two ball screw assemblies b9 disposed on the two ball screw assemblies a6 and disposed on the screen printing frame 11, and a scraper block 10 disposed on each of the two ball screw assemblies b9; the two scraper blocks 10 are distributed opposite to each other. The ball screw assembly a6 consists of a motor, a screw, balls, a nut a, and a lifting frame. The motor a is located at the top of the lifting frame, the screw is rotatably disposed on the lifting frame, the nut a is fixed on the screen printing frame 11, and the motor a drives the lifting frame to adjust its height through the screw, balls, and nut a. The scraper block 10 is disposed at the bottom of the lifting frame.

[0029] In this embodiment, linear module b, linear module a, ball screw assembly a6 and ball screw assembly b9 work together to drive the screen printing plate 8, screen printing frame 11 and squeegee 10 to move. When the two squeegees 10 move in different directions, one of the two squeegees 10 slides into contact with the screen printing frame 11, thereby pushing the accumulated ink back to the origin after screen printing is completed.

[0030] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A sheet material surface automatic screen printing machine characterized by comprising: include: A frame (1) is provided with a mounting bracket (3) and a conveying assembly (2); Linear module a is mounted on the frame (1), and a screen printing assembly is provided at the output end of linear module a; The automatic feeding assembly includes a subframe (13) mounted on the frame (1), a feeding assembly mounted on the subframe (13), and a feeding assembly (15) mounted on the subframe (13). The feeding assembly (15) includes a ball screw rotatably mounted on the subframe (13), a screw nut seat (152) mounted on the ball screw, a placement plate (151) mounted on the screw nut seat (152), multiple extension blocks (154) uniformly damped and slidably mounted on the placement plate (151), and a limit frame (155) detachably mounted on the subframe (13).

2. A machine for automatic silk-screen printing of a surface of a sheet material according to claim 1, characterized in that, Each of the extension blocks (154) is provided with an arc-shaped groove.

3. The automatic sheet surface silk-screen printing machine according to claim 1, characterized in that, The feeding assembly includes a motor (16) mounted on the sub-frame (13), a gear (17) mounted on the output end of the motor (16), a rotating mounting shaft (18) mounted on the sub-frame (13), a gear ring (19) mounted on the mounting shaft (18), a steering disk (20) mounted on the mounting shaft (18), and two sets of suction assemblies mounted opposite each other on the steering disk (20).

4. A sheet material surface automatic screen printing machine according to claim 3, wherein The suction assembly includes an electric cylinder (21) mounted on a steering wheel (20), a frame (22) mounted on the output end of the electric cylinder (21), a pipe mounted on the frame (22), a plurality of suction cups (23) evenly connected on the pipe, and a connecting pipe (24) connected to the pipe.

5. The automatic sheet surface silk-screen printing machine according to claim 1, characterized in that, The screen printing assembly includes a lifting frame (4) disposed at the output end of the linear module a, a linear module b disposed on the lifting frame (4), two mounting arms (5) disposed side by side on the lifting frame (4), a screen printing frame (11) disposed at the output end of the linear module b, a ball screw assembly a (6) disposed on each of the two mounting arms (5), two ball screw assemblies b (9) disposed side by side on the screen printing frame (11), and a scraper (10) disposed on each of the two ball screw assemblies b (9); the two scrapers (10) are distributed relative to each other.

6. The automatic sheet surface silk-screen printing machine according to claim 1, wherein The subframe (13) is provided with multiple evenly distributed fixing screw holes.

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