Multi-stage height-adjusting scraper mechanism

Abstract

The utility model relates to the technical field of silk-screen printing, in particular to a multistage height adjusting scraper mechanism which comprises a machine base, a scraper assembly movably arranged on the machine base, a height adjusting assembly in driving connection with the scraper assembly and a driving assembly in driving connection with the height adjusting assembly. The scraper assembly comprises a rod body, a sliding seat arranged on the rod body in a sliding mode, a scraper arranged on the sliding seat, a support arranged on the sliding seat and a connecting piece arranged on the support, the sliding seat is in an inverted U shape and abuts against the rod body in a sliding mode, the rod body is provided with a plurality of connecting holes, and the connecting holes are communicated with the sliding seat. The connecting holes are distributed at intervals in the length direction of the rod body, and the connecting pieces sequentially penetrate through the support and the sliding seat and are connected into the connecting holes in a threaded mode so that the support, the sliding seat and the rod body can be fastened. The adjusting range of the height of the scraper is enlarged, it is effectively guaranteed that the scraper exerts enough pressure on a printing stock, and the printing quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of screen printing, in particular to a scraper mechanism with multi-level height adjustment. Background Art

[0002] Screen printing uses a silk screen as a base and uses a photosensitive platemaking process to create a screen printing plate with an image. Screen printing consists of a screen printing plate, a scraper, ink, a printing table, and a substrate. The screen printing plate, or mesh, is used to print based on the principle that the mesh holes in the image area of ​​the screen are permeable to the ink, while the mesh holes in the non-image area are impermeable to the ink. During printing, ink is poured into one end of the screen printing plate, and a scraper is used to apply pressure to the inked area of ​​the screen while moving it at a constant speed toward the other end of the screen. As the scraper moves, the ink is squeezed from the mesh holes in the image area and transferred to the substrate, completing the printing process. Existing screen printing machines typically use a pneumatic cylinder to adjust the scraper blade height. However, the adjustment range of the scraper blade height is very limited, often resulting in a limited distance for the scraper blade to move up and down. This results in insufficient pressure on the substrate, affecting print quality. Utility Model Content

[0003] The purpose of the utility model is to address the deficiencies of the existing technology and provide a multi-level height-adjustable scraper mechanism to increase the adjustment range of the scraper height, effectively ensure that the scraper exerts sufficient pressure on the substrate, and improve the printing quality.

[0004] To achieve the above-mentioned purpose, the utility model provides a multi-stage height-adjustable scraper mechanism, including a machine base, a scraper assembly movably arranged on the machine base, a height adjustment assembly driven by the scraper assembly, and a drive assembly driven by the height adjustment assembly. The scraper assembly includes a rod body, a sliding seat slidably arranged on the rod body, a scraper arranged on the sliding seat, a bracket arranged on the sliding seat, and a connecting piece arranged on the bracket. The sliding seat is in an inverted U shape and slides in contact with the rod body. The rod body is provided with a connecting hole, and there are multiple connecting holes. The multiple connecting holes are arranged at intervals along the length direction of the rod body. The connecting piece passes through the bracket and the sliding seat in turn and is threadedly connected to the connecting hole to fasten the bracket, the sliding seat and the rod body.

[0005] Preferably, an elastic clamping arm is provided at one end of the bracket close to the sliding seat, and the sliding seat is provided with a receiving groove, which is recessed from the surface of the sliding seat and arranged along the length direction of the sliding seat, and the elastic clamping arm is accommodated in the receiving groove.

[0006] Preferably, the height adjustment assembly includes a connecting seat, a lifting cylinder arranged on the connecting seat, and an assembly seat arranged at the output end of the lifting cylinder, the assembly seat is connected to the rod body, and the connecting seat is connected to the driving assembly.

[0007] Preferably, the driving assembly includes a moving seat, a driving cylinder drivingly connected to the moving seat, an abutment block provided on the driving cylinder, and a micrometer provided on the moving seat, wherein the measuring end of the micrometer abuts against the abutment block.

[0008] Preferably, the sliding seat is provided with a mounting hole, the mounting hole is provided with a mounting screw, and the mounting screw passes through the mounting hole and is connected to the scraper.

[0009] The beneficial effects of the utility model include increasing the adjustment range of the scraper height, effectively ensuring that the scraper exerts sufficient pressure on the substrate, and improving the printing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural diagram of the present utility model.

[0011] Figure 2 for Figure 1 Schematic diagram of the locally enlarged structure of A in the middle.

[0012] Reference numerals include:

[0013] 1——Machine base

[0014] 2——scraper assembly 21——rod body 22——sliding seat

[0015] 23——scraper 24——bracket 25——connector

[0016] 26——Connection hole 27——Elastic clamp arm 28——Accommodation groove

[0017] 29 - mounting hole 210 - mounting screw

[0018] 3 - Height adjustment assembly 31 - Connecting seat 32 - Lifting cylinder

[0019] 33——Assembly seat

[0020] 4 - driving assembly 41 - moving seat 42 - driving cylinder

[0021] 43——Abutment block 44——Micrometer DETAILED DESCRIPTION

[0022] The present invention is described in detail below with reference to the accompanying drawings.

[0023] like Figures 1 to 2As shown, a multi-stage height-adjustable scraper mechanism of the present invention includes a machine base 1, a scraper assembly 2 movably arranged on the machine base 1, a height adjustment assembly 3 driven and connected to the scraper assembly 2, and a drive assembly 4 driven and connected to the height adjustment assembly 3, the scraper assembly 2 includes a rod body 21, a sliding seat 22 slidably arranged on the rod body 21, a scraper 23 arranged on the sliding seat 22, a bracket 24 arranged on the sliding seat 22, and a connecting member 25 arranged on the bracket 24, the sliding seat 22 is an inverted U-shape and slides in contact with the rod body 21, the rod body 21 is provided with a connecting hole 26, and a plurality of connecting holes 26 are provided, and the plurality of connecting holes 26 are arranged at intervals along the length direction of the rod body 21, the connecting member 25 passes through the bracket 24 and the sliding seat 22 in sequence and is threadedly connected to the connecting hole 26 to fasten the bracket 24, the sliding seat 22 and the rod body 21.

[0024] During operation, the drive assembly 4 and the height adjustment assembly 3 are both electrically connected to the control system, enabling intelligent control with high precision. The drive assembly 4 drives the height adjustment assembly 3 downward relative to the machine base 1, further driving the scraper assembly 2 closer to the substrate through the height adjustment assembly 3. The connector 25 sequentially passes through the bracket 24 and the sliding seat 22 and is threaded into the connecting hole 26. Furthermore, multiple connecting holes 26 are arranged at intervals along the length of the rod body 21, thereby firmly connecting the bracket 24 and the sliding seat 22 to the rod body 21, effectively adjusting the working position of the scraper 23 on the rod body 21. The adjustment effect is significant, ensuring that the scraper 23 applies sufficient pressure on the substrate. The utility model increases the adjustment range of the scraper height, effectively ensuring that the scraper applies sufficient pressure on the substrate, and improving printing quality.

[0025] In this embodiment, the bracket 24 is provided with an elastic clamping arm 27 at one end thereof near the sliding seat 22. The sliding seat 22 is provided with a receiving groove 28. The receiving groove 28 is recessed from the surface of the sliding seat 22 and arranged along the length of the sliding seat 22. The elastic clamping arm 27 is abutted and received within the receiving groove 28. Specifically, the bracket 24 is abutted and received within the receiving groove 28 by the elastic clamping arm 27, thereby achieving a snap-fit ​​connection and fixation between the bracket 24 and the sliding seat 22, and improving structural stability.

[0026] The height adjustment assembly 3 of this embodiment includes a connecting base 31, a lifting cylinder 32 disposed on the connecting base 31, and an assembly base 33 disposed at the output end of the lifting cylinder 32. The assembly base 33 is connected to the rod body 21, and the connecting base 31 is connected to the drive assembly 4. Specifically, the drive assembly 4 drives the lifting cylinder 32 up and down via the connecting base 31, and the lifting cylinder 32 is then connected to the rod body 21 via the assembly base 33, thereby adjusting the height position of the rod body 21. The structural design is reasonable and compact.

[0027] The driving assembly 4 of this embodiment includes a moving base 41, a driving cylinder 42 drivingly connected to the moving base 41, an abutment block 43 provided on the driving cylinder 42, and a micrometer 44 provided on the moving base 41, wherein the measuring end of the micrometer 44 abuts against the abutment block 43. Specifically, the driving cylinder 42 drives the moving base 41 to move up and down, and the abutment block 43 is provided on the outside of the driving cylinder 42. When the measuring end of the micrometer 44 abuts against the abutment block 43, the provision of the micrometer 44 enables the height position of the moving base 41 to be adjusted more accurately, so that the real-time height position of the moving base 41 can be accurately sensed and detected, and the height position can be adjusted more precisely.

[0028] The sliding seat 22 of this embodiment is provided with a mounting hole 29, and the mounting hole 29 is provided with a mounting screw 210, and the mounting screw 210 passes through the mounting hole 29 and is connected to the scraper 23. Specifically, the mounting screw 210 passes through the mounting hole 29 and is connected to the scraper 23, which is convenient for installation and removal, and the connection is stable and reliable.

[0029] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation methods and application scope. The content of this specification should not be understood as limiting the present invention.

Claims

1. A multi-level height-adjustable scraper mechanism, characterized in that: It includes a machine base, a scraper assembly movably arranged on the machine base, a height adjustment assembly driven by the scraper assembly, and a driving assembly driven by the height adjustment assembly. The scraper assembly includes a rod body, a sliding seat slidably arranged on the rod body, a scraper arranged on the sliding seat, a bracket arranged on the sliding seat, and a connecting piece arranged on the bracket. The sliding seat is in an inverted U shape and slides in contact with the rod body. The rod body is provided with a connecting hole, and there are multiple connecting holes. The multiple connecting holes are arranged at intervals along the length direction of the rod body. The connecting piece passes through the bracket and the sliding seat in turn and is threadedly connected to the connecting hole to fasten the bracket, the sliding seat and the rod body.

2. The multi-level height-adjustable scraper mechanism according to claim 1, characterized in that: An elastic clamping arm is provided at one end of the bracket close to the sliding seat, and the sliding seat is provided with a receiving groove. The receiving groove is recessed from the surface of the sliding seat and arranged along the length direction of the sliding seat. The elastic clamping arm is abutted and received in the receiving groove.

3. The multi-level height-adjustable scraper mechanism according to claim 1, characterized in that: The height adjustment assembly includes a connecting seat, a lifting cylinder arranged on the connecting seat, and an assembly seat arranged at the output end of the lifting cylinder. The assembly seat is connected to the rod body, and the connecting seat is connected to the driving assembly.

4. The multi-level height-adjustable scraper mechanism according to claim 3, characterized in that: The driving assembly includes a moving seat, a driving cylinder drivingly connected to the moving seat, an abutment block arranged on the driving cylinder, and a micrometer arranged on the moving seat, wherein the measuring end of the micrometer abuts against the abutment block.

5. The multi-level height-adjustable scraper mechanism according to claim 1, characterized in that: The sliding seat is provided with a mounting hole, and the mounting hole is provided with a mounting screw, and the mounting screw passes through the mounting hole and is connected to the scraper.

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