Screen frame fine adjustment structure for silk-screen printing

Abstract

The utility model discloses a fine adjustment structure for a silk-screen printing screen frame, which comprises two cross beams arranged in parallel, two Y-axis adjusting mechanisms respectively arranged on the two cross beams, a screen frame mounting rack connected between the two Y-axis adjusting mechanisms, and an X-axis adjusting mechanism arranged on at least one of the Y-axis adjusting mechanisms. By the adoption of the technical scheme, the fine adjustment structure of the screen frame for silk-screen printing is simpler and lighter, the defect that the overall rigid load of equipment is increased due to the fact that the structure is too heavy is overcome, and the fine adjustment structure is particularly suitable for a cantilever structure printing machine; in addition, by means of the structure, the position of the screen frame can be finely adjusted in the X-axis direction and the Y-axis direction, and the Y-axis screwing handles on the two sides can be rotated in the opposite directions, so that the screen printing plate can deflect, and the angle of the screen printing plate can be finely adjusted.

Description

Technical Field

[0001] The utility model relates to a screen printing screen frame fine-tuning structure and belongs to the technical field of screen printing. Background Art

[0002] A screen printer is a device used to transfer ink to a substrate through a screen. It is widely used in printed electronic circuits, textiles, ceramics, glass and other industries. Its main components include a print head, a screen frame, a scraper and a substrate conveying system. When adjusting the screen position, large-scale position adjustments require workers to visually install the screen to an approximate position when installing it, while more precise position adjustments require the screen frame fine-tuning structure. Therefore, the screen frame fine-tuning structure is an important part of ensuring printing accuracy and quality. It allows the operator to accurately adjust the position of the screen frame to ensure accurate alignment of the printed pattern with the substrate. The existing screen frame fine-tuning structure of a screen printer has a relatively complex structure and a heavy body weight. It is more suitable for installation on a high-rigidity frame structure printer. If it is installed on a cantilever printer, the screen frame may be skewed due to the excessive weight of the cantilever end, affecting the printing accuracy. Utility Model Content

[0003] Therefore, the purpose of the present invention is to provide a screen printing frame fine-tuning structure with a relatively simple structure.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a screen printing screen frame fine-tuning structure, comprising two parallel beams, two Y-axis adjustment mechanisms respectively arranged on the two beams, and a screen frame mounting frame connected between the two Y-axis adjustment mechanisms, wherein an X-axis adjustment mechanism is arranged on at least one of the Y-axis adjustment mechanisms; a first slide rail is arranged on the beam, the Y-axis adjustment mechanism comprises a first sliding seat and a Y-axis screw rod installed on the first slide rail, the screen frame mounting frame is fixed to the first sliding seat, the optical axis portion of the Y-axis screw rod is installed on the first axis seat on the beam, and the screw portion of the Y-axis screw rod is screwed into a first screw hole on the first sliding seat; the screen frame mounting frame It includes a square frame and a connecting piece for supporting the frame, the connecting piece is fixed to the first sliding seat, the frame includes an X-axis side bar and a Y-axis side bar, a vertical plug rod is arranged on the connecting piece, a long hole is arranged on the X-axis side bar, the plug rod is inserted into the long hole so that the connecting piece and the frame can only move relative to each other in the X direction; a second slide rail is arranged on the Y-axis side bar, the X-axis adjustment mechanism includes a second sliding seat installed on the second slide rail and an X-axis screw, the optical axis portion of the X-axis screw is installed on the second axis seat on the second sliding seat, the screw portion of the X-axis screw is screwed into the second screw hole on a connecting plate, and the connecting plate is fixed to the first sliding seat.

[0005] The connecting member includes a sleeve, which is sleeved on the outside of the Y-direction side rod, and the Y-direction side rod can move along the X-direction inside the sleeve; a window hole begins to be provided on the side wall of the sleeve, the second slide rail is located at a position opposite to the window hole, and the second slider on the second sliding seat can pass through the window hole and be installed on the second slide rail.

[0006] The two ends of the sleeve are respectively provided with an insertion rod.

[0007] Among the two insertion rods arranged at the two ends of the sleeve, one of the insertion rods is a cylinder rod of a locking cylinder, and a pressing sheet is arranged on the cylinder rod, and the pressing sheet can be pressed tightly on the edge of the long hole.

[0008] The first sliding seat is provided with a groove, the edge of the groove is provided with a receiving cavity, the first sliding seat also includes an inserting plate arranged in the receiving cavity, and the first screw hole is opened on the inserting plate.

[0009] The net frame mounting frame also includes a net frame fixing device arranged on the frame body; the net frame fixing device includes a support plate with an L-shaped cross-section, the net frame can be placed on the horizontal plate portion of the support plate, and a fastening cylinder is arranged on the vertical plate portion of the support plate, and the fastening cylinder can be pressed against the net frame.

[0010] Mounting grooves and positioning cylinders are respectively provided at both ends of the support plate. The X-axis side rod passes through the mounting grooves so that the support plate can move along the X-axis side rod; the positioning cylinder can be pressed against the X-axis side rod.

[0011] The X-axis screw rod and the Y-axis screw rod are also provided with screw handles respectively.

[0012] By adopting the above technical solution, the screen printing frame fine-tuning structure of the utility model has a simpler and lighter structure, avoiding the defect of increasing the overall rigid load of the equipment due to the heavy structure, and is particularly suitable for cantilever structure printing machines; in addition, through the structure of the utility model, in addition to being able to fine-tune the position of the screen frame along the X-axis and Y-axis directions, the Y-axis screw handles on both sides can also be rotated in opposite directions to allow the screen to deflect and thus fine-tune its angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Figure 2 It is a schematic diagram of the overall assembly structure of the X-axis adjustment mechanism and the Y-axis adjustment mechanism.

[0015] Figure 3 It is a schematic diagram of the assembly structure decomposition of the X-axis adjustment mechanism and the Y-axis adjustment mechanism.

[0016] Figure 4It is a structural schematic diagram of the Y-axis adjustment mechanism.

[0017] Figure 5 It is a cross-sectional view of the Y-axis adjustment mechanism.

[0018] Figure 6 It is a cross-sectional view of the X-axis adjustment mechanism.

[0019] Figure 7 A partial cross-sectional view of the casing.

[0020] Figure 8 for Figure 7 A partial enlarged view of part A.

[0021] Fig. 9 It is a structural schematic diagram of the screen frame fixing device. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below through the accompanying drawings and specific implementation methods.

[0023] like Figure 1-9 As shown, the utility model provides a screen printing frame fine-tuning structure, comprising two parallel beams 1, two Y-axis adjustment mechanisms 2 respectively arranged on the two beams 1, and a frame mounting frame 3 connected between the two Y-axis adjustment mechanisms 2, and an X-axis adjustment mechanism 4 is arranged on at least one of the Y-axis adjustment mechanisms 2. In this embodiment, the X-axis adjustment mechanism 4 is arranged on only one of the Y-axis adjustment mechanisms 2.

[0024] The crossbeam 1 is a fixed beam on the screen printing machine. A first slide rail 11 is fixed on the crossbeam 1, the Y-axis adjustment mechanism 2 includes a first sliding seat 22 and a Y-axis screw 23 installed on the first slide rail 11 through a first slider 21, and the screen frame mounting frame 3 is fixed to the first sliding seat 22.

[0025] The Y-axis screw 23 includes a screw handle, an optical axis portion and a screw portion. The optical axis portion 231 of the Y-axis screw is installed on the first shaft seat 12 on the crossbeam 1. A lock nut 24 is provided on one side of the first shaft seat 12. The lock nut 24 is screwed on the screw portion 232 of the Y-axis screw and forms a small gap with the first shaft seat 12. On the one hand, it prevents the Y-axis screw 23 from slipping out. On the other hand, the gap formed can also allow the Y-axis screw 23 to rotate. Two top screw holes are provided on the lock nut 24. After the lock nut 24 is adjusted into place, it is locked by the top screw. A groove 221 is provided on the first sliding seat 22. An accommodating cavity 222 is provided at the edge of the groove 221. An insert plate 223 is provided in the accommodating cavity 222. The insert plate 223 is stuck in the accommodating cavity 222 and cannot move. A first screw hole is provided on the insert plate 223. The screw portion 232 of the Y-axis screw is screwed to the first screw hole.

[0026] The screen frame mounting frame 3 includes a square frame body 31, a connecting piece 32 for supporting the frame body 31, and a screen frame fixing device 33 installed on the frame body 31. The frame body 31 includes an X-axis side bar 311 and a Y-axis side bar 312. The screen frame fixing device 33 includes a support plate 331 with an L-shaped cross section. The screen frame for screen printing can be placed on the horizontal plate portion 331a of the support plate 331. The vertical plate portion 331b of the support plate 331 is provided with a fastening cylinder 332, and the fastening cylinder 332 can be pressed against the screen frame. Mounting grooves 333 and positioning cylinders 334 are also provided at both ends of the support plate 331. The X-axis side bar 311 passes through the mounting grooves 333 so that the support plate 331 can move along the X-axis side bar 311; the positioning cylinder 334 can be pressed against the X-axis side bar 311. When the screen frame is placed on the horizontal plate 331a, it is pressed by the tightening cylinder 332; the position of the support plate 331 on the X-axis side rod 311 can be adjusted to adapt to screen frames of different sizes. After adjustment, the support plate 331 is fixed to the X-axis side rod 311 by the positioning cylinder 334.

[0027] The connecting member 32 is fixed to the first sliding seat 22. A vertical plug rod 321 is provided on the connecting member 32. A long hole 311a is provided on the X-direction side rod 311. The plug rod 321 is inserted into the long hole 311a so that the connecting member 32 and the frame 31 can only move relative to each other in the X direction. A second slide rail 312a is provided on the Y-direction side rod 312. The X-axis adjustment mechanism 4 includes a second sliding seat 41 installed on the second slide rail 312a and an X-axis screw 42. The X-axis screw 42 also includes a screw handle, an optical axis portion and a screw portion. The optical axis portion 421 of the X-axis screw is installed on the second axis seat 411 on the second sliding seat 41. The screw portion 422 of the X-axis screw is screwed into a second screw hole on a connecting plate 43. The connecting plate 43 is fixed to the first sliding seat 22.

[0028] In this embodiment, the connecting member 32 includes a sleeve 322, and the sleeve 322 is sleeved on the outside of the Y-axis side rod 312. When fine-tuning in the X-axis, the Y-axis side rod 312 can move along the X-axis in the sleeve 322; a window hole 322a is provided on the side wall of the sleeve 322, and the second slide rail 312a is located at a position opposite to the window hole 322a. The second slider 412 on the second sliding seat 41 can pass through the window hole 322a and be installed on the second slide rail 312a.

[0029] The two ends of the sleeve 322 are respectively provided with an insertion rod 321. Among the two insertion rods 321 provided at the two ends of the sleeve 322, one of the insertion rods 321 is a cylinder rod of a locking cylinder 323, and a pressing piece 321a is provided on the cylinder rod, and the pressing piece 321a can be pressed on the edge of the long hole 311a, and can assist in limiting the relative positions of the X-axis side rod 311 and the Y-axis side rod 312.

[0030] Obviously, the above embodiments are only examples for clear explanation, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from them are still within the protection scope of the invention of the utility model.

Claims

1. A screen printing frame fine-tuning structure, characterized in that: The invention comprises two parallel beams, two Y-axis adjustment mechanisms respectively arranged on the two beams, and a screen frame mounting frame connected between the two Y-axis adjustment mechanisms, wherein an X-axis adjustment mechanism is arranged on at least one of the Y-axis adjustment mechanisms; a first slide rail is arranged on the beam, the Y-axis adjustment mechanism comprises a first sliding seat and a Y-axis screw rod installed on the first slide rail, the screen frame mounting frame is fixed to the first sliding seat, the optical axis portion of the Y-axis screw rod is installed on the first axis seat on the beam, and the screw portion of the Y-axis screw rod is screwed into the first screw hole on the first sliding seat; the screen frame mounting frame comprises a square frame body and a support for the screen frame. The frame body comprises a connecting piece, which is fixed to the first sliding seat, and the frame body comprises an X-axis side rod and a Y-axis side rod. A vertical plug rod is provided on the connecting piece, and a long hole is provided on the X-axis side rod. The plug rod is inserted into the long hole so that the connecting piece and the frame body can only move relative to each other in the X direction; a second slide rail is provided on the Y-axis side rod, and the X-axis adjustment mechanism comprises a second sliding seat installed on the second slide rail and an X-axis screw, the optical axis portion of the X-axis screw is installed on the second axis seat on the second sliding seat, and the screw portion of the X-axis screw is screwed into the second screw hole on a connecting plate, and the connecting plate is fixed to the first sliding seat.

2. A screen printing frame fine-tuning structure as claimed in claim 1, characterized in that: The connecting member includes a sleeve, which is sleeved on the outside of the Y-direction side rod, and the Y-direction side rod can move along the X-direction inside the sleeve; a window hole begins to be provided on the side wall of the sleeve, the second slide rail is located at a position opposite to the window hole, and the second slider on the second sliding seat can pass through the window hole and be installed on the second slide rail.

3. A screen printing frame fine-tuning structure as claimed in claim 2, characterized in that: Among the two insertion rods arranged at the two ends of the sleeve, one of the insertion rods is a cylinder rod of a locking cylinder, and a pressing sheet is arranged on the cylinder rod, and the pressing sheet can be pressed tightly on the edge of the long hole.

4. A screen printing frame fine-tuning structure as claimed in claim 1, characterized in that: The first sliding seat is provided with a groove, the edge of the groove is provided with a receiving cavity, the first sliding seat also includes an inserting plate arranged in the receiving cavity, and the first screw hole is opened on the inserting plate.

5. A screen printing frame fine-tuning structure according to any one of claims 1 to 4, characterized in that: The net frame mounting frame also includes a net frame fixing device arranged on the frame body; the net frame fixing device includes a support plate with an L-shaped cross-section, the net frame can be placed on the horizontal plate portion of the support plate, and a fastening cylinder is arranged on the vertical plate portion of the support plate, and the fastening cylinder can be pressed against the net frame.

6. A screen printing frame fine-tuning structure as claimed in claim 5, characterized in that: Mounting grooves and positioning cylinders are respectively provided at both ends of the support plate. The X-axis side rod passes through the mounting grooves so that the support plate can move along the X-axis side rod; the positioning cylinder can be pressed against the X-axis side rod.

7. A screen printing frame fine-tuning structure according to any one of claims 1 to 4, characterized in that: The X-axis screw rod and the Y-axis screw rod are also provided with screw handles respectively.

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