Manual screen printing machine

Abstract

The utility model relates to the technical field of screen printing machines, in particular to a manual screen printing machine. Comprising a machine base, a supporting base, two supporting columns, a lifting base, a lifting driving mechanism, an overturning frame, a screen printing plate assembly, a printing table, a movable base, a scraper assembly, an ink returning blade assembly, a first connecting rod, a second connecting rod, a first connecting plate, a pressure spring, a second connecting plate, a fixed handle, a fixed base and a movable handle. The inner wall of the middle of the movable groove is rotationally connected with the top of the fixing base, a first shaft rod is arranged at the top end of the first connecting rod, a second shaft rod is arranged at the top end of the second connecting rod, a first driving groove and a second driving groove are formed in the side walls of the two ends of the movable groove respectively, the first shaft rod extends into the first driving groove, and the second shaft rod extends into the second driving groove. The screen printing device is easy to operate, materials can be conveniently subjected to screen printing, the distance between the screen printing plate assembly and the printing table can be adjusted, and therefore the requirements for screen printing of the materials with different thicknesses can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of screen printing machines, in particular to a manual screen printing machine. Background Art

[0002] With the development of screen printing equipment, automated screen printing equipment has become more and more popular, but manual screen printing machines are still needed for trial printing and parameter adjustment, and some factories use manual screen printing machines for processing and production. Among the existing patents, the Chinese patent document with application number 201920061641.6 discloses a manual screen printing machine, including a frame, a positioning platform for positioning the printing substrate, a screen printing device, which includes a screen printing frame pivotally connected to the frame, a clamping assembly for clamping the screen frame at the bottom of the screen printing frame, a screen screen plate provided on the screen frame, and a scraper assembly provided on the screen printing frame. A guide rail is provided along the movement direction of the scraper assembly on the screen printing frame, a sliding seat is provided on the guide rail, and a through hole is provided on the sliding seat in the vertical direction. The scraper assembly includes an adjusting screw connected to the through hole, the lower end of the adjusting screw is detachably connected to the scraper, the adjusting screw is threadedly connected to a first adjusting nut on the upper side of the sliding seat, and the adjusting screw is threadedly connected to a second adjusting nut on the lower side of the sliding seat. The sliding seat is connected to a handle for driving the scraper assembly to move, and stop bolts are threadedly connected to both sides of the screen printing frame to cooperate with the frame to stop the screen printing frame. Although the manual screen printing machine in this patent document has a simple structure and is easy to operate, the distance between the screen and the printing table is fixed, which cannot meet the requirements of screen printing on materials of different thicknesses, and the printing quality is difficult to guarantee.

[0003] Therefore, the defects are very obvious and a solution is urgently needed. Utility Model Content

[0004] In order to solve the above technical problems, the purpose of the present utility model is to provide a manual screen printing machine.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The lifting mechanism is a kind of lifting mechanism that lifts and lowers the lifting mechanism, and the lifting mechanism of lifting mechanism is a kind of lifting mechanism that lifts and lowers the lifting mechanism, and the lifting mechanism of lifting mechanism is a kind of lifting mechanism that lifts and lowers the lifting mechanism, and the lifting mechanism of lifting mechanism is a kind of lifting mechanism that lifts and lowers the lifting mechanism The top end of the movable handle is provided with a movable groove, and the middle inner wall of the movable groove is rotatably connected to the top of the fixed seat, and the top end of the first connecting rod is provided with a first shaft rod, and the top end of the second connecting rod is provided with a second shaft rod. The side walls of the movable groove at both ends are respectively provided with a first driving groove and a second driving groove, and the first shaft rod extends into the first driving groove, and the first shaft rod can slide relative to the inner wall of the first driving groove, and the second shaft rod extends into the second driving groove, and the second shaft rod can slide relative to the inner wall of the second driving groove.

[0007] Furthermore, the first connecting plate is equipped with a first dial indicator, and a probe of the first dial indicator is used to contact the top surface of the movable seat.

[0008] Furthermore, a first abutment block is provided on the top surface of the movable seat, and the first abutment block is used to abut against the probe of the first dial indicator.

[0009] Furthermore, the second connecting plate is equipped with a second dial indicator, and the probe of the second dial indicator is used to contact the top surface of the movable seat.

[0010] Furthermore, a second abutment block is provided on the top surface of the movable seat, and the second abutment block is used to abut against the probe of the second dial indicator.

[0011] Furthermore, a handle is installed on the front side of the flip frame.

[0012] Furthermore, the manual screen printing machine also includes a tilted gas spring, one end of the gas spring is hinged to the middle of the flip frame, and the other end of the gas spring is hinged to the machine base.

[0013] Furthermore, the movable seat includes two supports respectively connected to the two side edges of the flip frame in a sliding manner, a flat plate detachably connected to the tops of the two supports, a locking block installed on the end of the flat plate and a quick pull buckle installed on the support, the quick pull buckle is detachably connected to the locking block, the quick pull buckle is used to tighten or loosen the locking block, the first connecting rod and the second connecting rod both slide through the flat plate, and the fixed seat is installed on the top surface of the flat plate.

[0014] Furthermore, the screen assembly is mounted on the flip frame via an adjustable quick-release structure.

[0015] Furthermore, the adjustable quick-release structure includes two supporting frames slidably connected to the flip frame, a locking piece for locking the supporting frame on the flip frame, and a locking piece for locking the screen assembly and the supporting frame together. The two supporting frames are arranged in parallel, and the two supporting frames are used to support the two side edges of the screen assembly respectively.

[0016] The beneficial effects of the utility model are as follows: in actual application, in the initial state, the compression spring is in an extended state, and a seesaw structure is formed between the first connecting rod, the fixed seat, the second connecting rod and the movable handle. The elastic force of the compression spring pushes against the first connecting rod, so that the first connecting rod pulls the scraper assembly to a high position, and the outer end of the movable handle tilts upward, and the ink return knife assembly drives the second connecting rod to a low position. The ink return knife assembly contacts the screen assembly, and the flip frame flips upward relative to the lifting seat to place the material on the printing table, and then flips the flip frame downward until the two support columns support the flip frame. When the material needs to be printed, the operator's hand applies pressure to the outer end of the movable handle, so that the outer end of the movable handle rotates close to the fixed handle until the operator's hand grasps the outer end of the movable handle and the fixed handle together. At this time, the movable handle will apply downward pressure to the first connecting rod and upward pulling force to the second connecting rod, causing the compression spring to be compressed. The first connecting rod and the scraper assembly are lowered to the low position, and the scraper assembly contacts the screen assembly. The second connecting rod and the ink return knife assembly rise to the high position. At the same time, the operator pulls the movable handle and the fixed handle forward horizontally, causing the movable seat to move forward with the scraper assembly and the ink return knife assembly to print the material. Then, the operator releases the movable handle and the fixed handle, causing the movable handle to reset under the action of the rebound force of the compression spring, causing the first connecting rod to drive the scraper assembly to reset to the high position, and the second connecting rod to drive the ink return knife assembly to reset to the low position. The movable seat is then pushed backward, causing the movable seat to move backward with the scraper assembly and the ink return knife assembly to return the ink. After completing printing on the material, the flip frame is flipped upward to be able to replace the material. In addition, depending on the thickness of the material to be printed, the lifting seat and the flip frame are driven by the lifting drive mechanism to synchronously lift and lower to adjust the distance between the screen assembly and the printing table. The height of the support column is then adjusted to match the height of the flip frame to ensure that the support column can support the horizontal flip frame and at the same time ensure the horizontality of the flip frame and the screen assembly. The utility model is simple to operate, convenient for screen printing of materials, and can adjust the distance between the screen assembly and the printing table to meet the needs of screen printing of materials of different thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from another perspective.

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the utility model from another perspective.

[0021] Figure 5 This is a schematic diagram of the three-dimensional structure of the utility model from another perspective.

[0022] Figure 6 for Figure 5 Enlarged view of point B in the middle.

[0023] Description of reference numerals:

[0024] 1. Machine base; 2. Support base; 3. Support column; 4. Lifting base; 5. Lifting drive mechanism; 6. Flip frame; 7. Screen assembly; 8. Printing table; 9. Moving base; 10. Scraper assembly; 11. Ink return blade assembly; 12. First connecting rod; 13. Second connecting rod; 14. First connecting plate; 15. Compression spring; 16. Second connecting plate; 17. Fixed handle; 18. Fixed base; 19. Movable handle; 20. Movable slot; 21. First axis Rod; 22. Second shaft; 23. First drive slot; 24. Second drive slot; 25. First dial indicator; 26. First contact block; 27. Second dial indicator; 28. Second contact block; 29. ​​Pull handle; 30. Gas spring; 31. Support; 32. Flat plate; 33. Locking block; 34. Quick pull buckle; 35. Adjustable quick release structure; 36. Support frame; 37. Locking piece; 38. Scale line; 39. Rotating shaft; 40. XYR adjustment slide. DETAILED DESCRIPTION

[0025] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to embodiments and drawings. The contents mentioned in the embodiments are not intended to limit the present invention.

[0026] like Figures 1 to 6As shown, the utility model provides a manual screen printing machine, which includes a machine base 1, a support base 2 installed at the rear end of the machine base 1, two support columns 3 installed at the front end of the machine base 1 so as to be height-adjustable, a lifting base 4 connected to the support base 2 by lifting and sliding, a lifting drive mechanism 5 installed on the support base 2 and used to adjust the lifting of the lifting base 4, a hollow flip frame 6 rotatably connected to the lifting base 4 at its inner end, a screen assembly 7 connected to the inner cavity of the flip frame 6, a printing table 8 arranged on the machine base 1 and located below the screen assembly 7, and a sliding connection. The movable seat 9 on both sides of the flip frame 6, the scraper assembly 10 that is lifted and arranged above the screen assembly 7, the ink return knife assembly 11 that is lifted and arranged above the screen assembly 7, the first connecting rod 12 connected to the top of the scraper assembly 10 and slidingly passing through the movable seat 9, the second connecting rod 13 connected to the top of the ink return knife assembly 11 and slidingly passing through the movable seat 9, the first connecting plate 14 installed on the first connecting rod 12 and located above the movable seat 9, the compression spring 15 installed outside the first connecting rod 12, and the second connecting rod 13 installed on the movable seat 9, a second connecting plate 16 above the movable seat 9, a fixed handle 17 mounted on the front side wall of the movable seat 9, a fixed seat 18 mounted on the top surface of the movable seat 9 and located between the first connecting rod 12 and the second connecting rod 13, and a movable handle 19 movably arranged above the fixed handle 17. The two ends of the compression spring 15 are elastically in contact with the first connecting plate 14 and the movable seat 9 respectively. The ink return knife assembly 11 is located on the rear side of the scraper assembly 10. The top surfaces of the two support columns 3 are used to support the outer end bottom surface of the flip frame 6. The inner end of the movable handle 19 is provided with a movable groove The movable slot 20 has a central inner wall rotatably connected to the top of the fixed seat 18. A first shaft 21 is provided at the top of the first connecting rod 12, and a second shaft 22 is provided at the top of the second connecting rod 13. The sidewalls at both ends of the movable slot 20 are respectively provided with a first drive slot 23 and a second drive slot 24. The first shaft 21 extends into the first drive slot 23 and can slide relative to the inner wall of the first drive slot 23. The second shaft 22 extends into the second drive slot 24 and can slide relative to the inner wall of the second drive slot 24. Specifically, the bottom end of the support column 3 is threadedly connected to the base 1 to enable adjustment of the height of the support column 3.

[0027] The outer end of the movable handle 19 tilts upward, and the ink return knife assembly 11 drives the second link 13 to descend to the low position. The ink return knife assembly 11 contacts the screen assembly 7, and the flip frame 6 flips upward relative to the lifting seat 4 to place the material on the printing table 8. The flip frame 6 is then flipped downward until the two support columns 3 support the flip frame 6. When the material needs to be printed, the operator's hand applies pressure to the outer end of the movable handle 19, so that the outer end of the movable handle 19 rotates close to the fixed handle 17 until the operator's hand grasps the outer end of the movable handle 19 and the fixed handle 17 together. At this time, the movable handle 19 will apply downward pressure to the first connecting rod 12 and upward pulling force to the second connecting rod 13, so that the compression spring 15 is compressed, and the first connecting rod 12 and the scraper assembly 10 are lowered to a low position, and the scraper assembly 10 contacts the screen assembly 7, and the second connecting rod 13 and the ink return knife assembly 11 are raised to a high position. At the same time, the operator pulls the movable handle 19 and the fixed handle 17 forward horizontally, so that the movable seat 9 and the scraper assembly 10 and the ink return knife assembly 11 move forward to realize printing on the material. Then, the operator releases the movable handle 19 and the fixed handle 17, so that the movable handle 19 is reset under the action of the rebound force of the compression spring 15, so that the first connecting rod 12 drives the scraper assembly 10 to reset to a high position, and the second connecting rod 13 drives the ink return knife assembly 11 to reset to a low position, and then pushes the movable seat 9 backward, so that the movable seat 9 and the scraper assembly 10 and the ink return knife assembly 11 move backward to realize ink return. After the material is printed, the flip frame 6 is flipped upward to allow the material to be replaced. Furthermore, depending on the thickness of the material being printed, the lifting seat 4 is driven by the lifting drive mechanism 5 to synchronously lift and lower the flip frame 6 to adjust the spacing between the screen assembly 7 and the printing table 8. The height of the support column 3 is then adjusted to match the height of the flip frame 6 to ensure that the support column 3 can support the horizontal flip frame 6 and simultaneously maintain the levelness of the flip frame 6 and the screen assembly 7. The present invention is simple to operate, facilitates screen printing of materials, and can adjust the spacing between the screen assembly 7 and the printing table 8 to accommodate screen printing of materials of varying thicknesses.

[0028] In this embodiment, the first connecting plate 14 is equipped with a first dial indicator 25, and the probe of the first dial indicator 25 is used to contact the top surface of the movable base 9. When the first connecting plate 14 follows the first connecting rod 12 to descend to the low position, the probe of the first dial indicator 25 contacts the top surface of the movable base 9, so that the descent depth of the scraper assembly 10 can be monitored in real time, realizing visual operation and facilitating machine adjustment.

[0029] In this embodiment, a first abutment block 26 is provided on the top surface of the movable base 9. The first abutment block 26 is configured to abut against the probe of the first dial indicator 25. By providing the first abutment block 26 to abut against the probe of the first dial indicator 25, the detection accuracy of the first dial indicator 25 can be improved by only precision machining the first abutment block 26. Furthermore, the first abutment block 26 can be easily machined and replaced, resulting in low production and maintenance costs.

[0030] In this embodiment, the second connecting plate 16 is equipped with a second dial indicator 27, and the probe of the second dial indicator 27 is used to contact the top surface of the movable base 9. When the second connecting plate 16 follows the second connecting rod 13 to descend to the lower position, the probe of the second dial indicator 27 contacts the top surface of the movable base 9, so that the descent depth of the ink return blade assembly 11 can be monitored in real time, realizing visual operation and facilitating machine adjustment.

[0031] In this embodiment, a second abutment block 28 is provided on the top surface of the movable base 9. The second abutment block 28 is configured to abut against the probe of the second dial indicator 27. By providing the second abutment block 28 to abut against the probe of the second dial indicator 27, the detection accuracy of the second dial indicator 27 can be improved by only precision machining the second abutment block 28. Furthermore, the second abutment block 28 can be easily machined and replaced, resulting in low production and maintenance costs.

[0032] In this embodiment, a handle 29 is provided on the front side of the flip frame 6. The arrangement of the handle 29 facilitates the operator to flip the flip frame 6 upward or downward, and the operation is simple and convenient.

[0033] In this embodiment, the manual screen printing machine further includes an inclined gas spring 30, one end of which is hinged to the middle portion of the flip frame 6, and the other end of which is hinged to the machine base 1. When the flip frame 6 is tilted upward by a preset angle, the gas spring 30 supports the flip frame 6, ensuring that the flip frame 6 remains stably in the upward tilted position even if the operator releases their grip. When the two support columns 3 support the flip frame 6, the gas spring 30 tensions the flip frame 6, thereby improving its operational stability.

[0034] Specifically, the inner end of the flip frame 6 is rotatably connected to the lifting seat 4 via the rotating shaft 39. By flipping the flip frame 6 up or down around the rotating shaft 39, it is not only convenient to assemble the flip frame 6 and the lifting seat 4, but also conducive to improving the rotation stability of the flip frame 6.

[0035] In this embodiment, the movable base 9 includes two supports 31 slidably connected to the two sides of the flip frame 6, a flat plate 32 detachably connected to the tops of the two supports 31, a locking block 33 mounted on the end of the flat plate 32, and a quick-release buckle 34 mounted on the support 31. The quick-release buckle 34 is detachably connected to the locking block 33 and is used to tighten or loosen the locking block 33. The first connecting rod 12 and the second connecting rod 13 both slide through the flat plate 32, and the fixed base 18 is mounted on the top surface of the flat plate 32. This structural design realizes modular assembly of the movable base 9. The flat plate 32 can be quickly disassembled and assembled with the two supports 31, facilitating maintenance of the scraper assembly 10 and the ink return knife assembly 11.

[0036] In this embodiment, the screen assembly 7 is mounted on the flip frame 6 via an adjustable quick-release structure 35. This structural design facilitates the assembly and disassembly of the screen assembly 7 and the flip frame 6.

[0037] In this embodiment, the adjustable quick-release structure 35 includes two support frames 36 slidably connected to the flip frame 6, a locking member for locking the support frames 36 to the flip frame 6, and a locking member 37 for fastening the screen assembly 7 to the support frames 36. The two support frames 36 are arranged in parallel and are used to support the two sides of the screen assembly 7. The screen assembly 7 of different sizes is required for different material specifications. By adjusting the distance between the two support frames 36, screen assemblies 7 of different sizes can be assembled.

[0038] Specifically, both the locking member and the locking member 37 can be bolts.

[0039] Specifically, a scale line 38 is provided on the front side of the flip frame 6 . The setting of the scale line 38 can indicate the adjustment of the supporting frame 36 to achieve visual adjustment and facilitate adjustment of the distance between the two supporting frames 36 .

[0040] Specifically, the machine base 1 is equipped with an XYR adjustment slide 40, and the printing table 8 is installed at the adjustment end of the XYR adjustment slide 40. The position and angle of the printing table 8 are adjusted by the XYR adjustment slide 40, so that the position and angle of the material can be adjusted.

[0041] Specifically, the first connecting plate 14 and the second connecting plate 16 are both equipped with dampers, which are used to abut against the top surface of the movable seat 9. During operation, the dampers play a role of buffering protection.

[0042] All technical features in this embodiment can be freely combined according to actual needs.

[0043] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the scope of protection of the present invention.

Claims

1. A manual screen printing machine, characterized in that: The invention comprises a machine base (1), a support base (2) mounted on the rear end of the machine base (1), two support columns (3) mounted on the front end of the machine base (1) and capable of being adjusted in height, a lifting base (4) connected to the support base (2) in a lifting and sliding manner, a lifting drive mechanism (5) mounted on the support base (2) and used for adjusting the lifting of the lifting base (4), a hollow turning frame (6) whose inner end is rotatably connected to the lifting base (4), a screen assembly (7) connected to the inner cavity of the turning frame (6), a printing table (8) arranged on the machine base (1) and located below the screen assembly (7), and a movable base (9) slidably connected to both sides of the turning frame (6). , a scraper assembly (10) that is lifted and arranged above the screen assembly (7), an ink return knife assembly (11) that is lifted and arranged above the screen assembly (7), a first connecting rod (12) that is connected to the top of the scraper assembly (10) and slides through the movable seat (9), a second connecting rod (13) that is connected to the top of the ink return knife assembly (11) and slides through the movable seat (9), a first connecting plate (14) that is installed on the first connecting rod (12) and is located above the movable seat (9), a compression spring (15) that is sleeved on the outside of the first connecting rod (12), and a second connecting plate that is installed on the second connecting rod (13) and is located above the movable seat (9) (16), a fixed handle (17) mounted on the front side wall of the movable seat (9), a fixed seat (18) mounted on the top surface of the movable seat (9) and located between the first connecting rod (12) and the second connecting rod (13), and a movable handle (19) movably arranged above the fixed handle (17), the two ends of the compression spring (15) elastically contact the first connecting plate (14) and the movable seat (9) respectively, the ink return knife assembly (11) is located on the rear side of the scraper assembly (10), the top surfaces of the two support columns (3) are used to support the outer end bottom surface of the flip frame (6), the inner end of the movable handle (19) is provided with a movable groove (20), the movable The middle inner wall of the movable groove (20) is rotatably connected to the top of the fixed seat (18), the top of the first connecting rod (12) is provided with a first shaft rod (21), the top of the second connecting rod (13) is provided with a second shaft rod (22), and the side walls at both ends of the movable groove (20) are respectively provided with a first driving groove (23) and a second driving groove (24), the first shaft rod (21) extends into the first driving groove (23), and the first shaft rod (21) can slide relative to the inner wall of the first driving groove (23), and the second shaft rod (22) extends into the second driving groove (24), and the second shaft rod (22) can slide relative to the inner wall of the second driving groove (24).

2. A manual screen printing machine according to claim 1, characterized in that: The first connecting plate (14) is provided with a first dial indicator (25), and a probe of the first dial indicator (25) is used for contacting the top surface of the movable seat (9).

3. The manual screen printing machine according to claim 2, characterized in that: The top surface of the movable seat (9) is provided with a first abutment block (26), and the first abutment block (26) is used for abutting against the probe of the first dial indicator (25).

4. The manual screen printing machine according to claim 1, characterized in that: The second connecting plate (16) is provided with a second dial indicator (27), and a probe of the second dial indicator (27) is used for contacting the top surface of the movable seat (9).

5. The manual screen printing machine according to claim 4, characterized in that: The top surface of the movable seat (9) is provided with a second abutment block (28), and the second abutment block (28) is used for abutting against the probe of the second dial indicator (27).

6. The manual screen printing machine according to claim 1, characterized in that: A pull handle (29) is installed on the front side of the turnover frame (6).

7. The manual screen printing machine according to claim 1, characterized in that: The manual screen printing machine further comprises a tilted gas spring (30), one end of the gas spring (30) is hinged to the middle of the flip frame (6), and the other end of the gas spring (30) is hinged to the machine base (1).

8. The manual screen printing machine according to claim 1, characterized in that: The movable seat (9) comprises two supports (31) respectively connected to the two side edges of the flip frame (6) in a sliding manner, a flat plate (32) detachably connected to the tops of the two supports (31), a locking block (33) mounted on the end of the flat plate (32) and a quick pull buckle (34) mounted on the support (31), the quick pull buckle (34) being detachably connected to the locking block (33), the quick pull buckle (34) being used to tighten or loosen the locking block (33), the first connecting rod (12) and the second connecting rod (13) both slidingly pass through the flat plate (32), and the fixed seat (18) being mounted on the top surface of the flat plate (32).

9. The manual screen printing machine according to claim 1, characterized in that: The screen assembly (7) is mounted on the flip frame (6) via an adjustable quick-release structure (35).

10. The manual screen printing machine according to claim 9, characterized in that: The adjustable quick-release structure (35) includes two supporting frames (36) slidably connected to the flip frame (6), a locking piece for locking the supporting frames (36) on the flip frame (6), and a locking piece (37) for locking the screen assembly (7) and the supporting frames (36) together. The two supporting frames (36) are arranged in parallel and are used to support the two side edges of the screen assembly (7) respectively.

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