Automatic screen printing machine
By using the associated and loading/unloading mechanisms of the automated screen printing machine, the problem of low efficiency in traditional screen printing processes due to manual operation is solved. It realizes automatic switching of workpiece positions and automated loading/unloading, thereby improving printing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-11
- Publication Date
- 2026-04-14
AI Technical Summary
In traditional screen printing, the printing and loading/unloading of workpieces rely on manual labor, resulting in low efficiency. Furthermore, the time cannot be effectively used to switch workpiece positions when the printing components return, which prolongs the single cycle time.
An automated screen printing machine was designed. Through a linkage mechanism, a reciprocating motor drives a screw and a ratchet transmission system, which automatically triggers the rotation of the ring plate when the screen printing component returns, accurately switching the workpiece to be printed to the printing station. The loading and unloading mechanism enables the bidirectional screw to drive the two slide plates to move synchronously in opposite directions, and combined with the clamping mechanism, automatic loading and unloading is achieved.
It shortens the single-cycle time, improves printing efficiency, reduces idle waiting time, realizes automated operation, and improves overall printing efficiency.
Smart Images
Figure CN121848811A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of printing equipment technology, specifically to an automated screen printing machine. Background Technology
[0002] Screen printing equipment, also known as a screen printing machine, is a type of printing equipment that transfers ink to the surface of a substrate using a screen. The core advantages of screen printing machines are thick ink layers, strong adhesion, and low cost, making them particularly suitable for large-area, personalized pattern printing. The printing process involves four main stages: plate making, inking, squeegee application, and drying. There are many types of screen printing machines, including manual, semi-automatic, and fully automatic models. Their applications cover almost all industrial sectors, with particularly wide applications in the electronics industry, such as printed circuit boards, electronic components, glass, and packaging materials.
[0003] In traditional screen printing, the printing and loading / unloading of workpieces usually rely on manual labor or are carried out step by step by independent drive mechanisms. On the one hand, the speed of manual operation is limited, and loading / unloading requires the staff to concentrate on the workpieces at all times. Over time, this will reduce the staff’s concentration and increase the error rate. On the other hand, when the printed components return, the return time cannot be effectively used to switch the workpiece position, which prolongs the time consumed per cycle.
[0004] Therefore, based on the above problems, we invented an automated screen printing machine. Summary of the Invention
[0005] In view of the shortcomings of the prior art, the present invention provides an automated screen printing machine to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: an automated screen printing machine, comprising a base, a vertical plate mounted on the base, a screen printing assembly mounted on the vertical plate, an annular plate on the base, the annular plate being rotatably mounted to the base via a rotating ring, an association mechanism for driving the screen printing assembly and the vertical plate on the vertical plate, a plurality of mounting slots on the vertical plate, a placement seat being embedded in the mounting slots, and a loading and unloading mechanism for loading and unloading materials on the base.
[0007] Furthermore, the associated mechanism includes a reciprocating groove on the vertical plate, a reciprocating screw rotatably mounted in the reciprocating groove, one end of the reciprocating screw rotatably penetrating the vertical plate, a reciprocating motor mounted outside the vertical plate, the drive shaft of the reciprocating motor rotatably penetrating the vertical plate and coaxially mounted with the reciprocating screw, a reciprocating screw block threaded onto the external thread of the reciprocating screw, the reciprocating screw block slidably mounted with the reciprocating groove, the screen printing assembly fixedly mounted with the reciprocating screw block, a fixing plate fixedly mounted on the base, a transmission shaft rotatably penetrating the fixing plate, a drive gear coaxially mounted on the transmission shaft, an annular toothed groove meshing with the drive gear at the lower end of the vertical plate, and a transmission connection between the transmission shaft and the reciprocating screw via a transmission mechanism.
[0008] Furthermore, the transmission mechanism includes a transmission ratchet and a pulley. The transmission ratchet is coaxially mounted with the transmission shaft. A transmission ring is fitted around the transmission ratchet. A moving tooth is installed inside the transmission ring. Multiple fixed teeth are installed outside the transmission ratchet. The moving tooth matches the multiple fixed teeth. The transmission ring is rotatably mounted with a fixed plate. The pulley is coaxially mounted with a reciprocating screw. The pulley and the transmission ring are connected by a synchronous belt. Two intermediate shafts that match the synchronous belt are rotatably mounted on the vertical plate.
[0009] Furthermore, the loading and unloading mechanism includes a fixed shaft fixedly installed on the upper end of the base. A top plate is fixedly connected to the upper end of the fixed shaft. Slide rails are fixedly connected to both ends of the top plate. A slide plate is slidably installed in the slide rail. A clamping mechanism for clamping materials is provided on the slide plate. A transmission cavity is provided in the top plate. A bidirectional screw passes through the transmission cavity. A drive motor is installed in the transmission cavity. A first bevel gear is coaxially installed on the drive shaft of the drive motor. A second bevel gear is coaxially installed on the bidirectional screw. The first bevel gear and the second bevel gear are meshed together.
[0010] Furthermore, the clamping mechanism includes a sliding through-plate with a U-shaped plate. A horizontal plate is fixedly connected to the lower end of the U-shaped plate. A groove is provided at the lower end of the horizontal plate, and a bidirectional clamping screw is rotatably installed within the groove. Two clamping threaded blocks are threaded onto the external threads of the bidirectional clamping screw. Both clamping threaded blocks are slidably installed within the groove. A clamping plate is fixedly connected to the lower ends of the two clamping threaded blocks. A clamping motor is installed outside the horizontal plate. The drive shaft of the clamping motor rotatably passes through the horizontal plate and is coaxially installed with the bidirectional clamping screw. A lifting screw is rotatably installed within the U-shaped plate. A lifting screw is threaded through the sliding plate. A longitudinal sliding sleeve is slidably fitted around the lifting screw. The longitudinal sliding sleeve is rotatably mounted to the sliding plate. A power shaft is rotatably mounted between the two connecting plates. A power motor is mounted at one end of one of the connecting plates. The drive shaft of the power motor rotatably passes through the connecting plate and is coaxially mounted with the power shaft. The power shaft rotatably passes through the top plate. A transverse sliding sleeve is slidably fitted around the power shaft. The transverse sliding sleeve is rotatably connected to the sliding plate through a limiting plate. The transverse sliding sleeve and the longitudinal sliding sleeve are connected by a gear set transmission.
[0011] Furthermore, the gear set includes a worm and a worm wheel that mesh with each other. The worm is coaxially mounted with a transverse sliding sleeve, and the worm wheel is coaxially mounted with a longitudinal sliding sleeve. The worm and the worm wheel are meshed together.
[0012] Furthermore, both of the slide plates are provided with threaded holes that match the bidirectional screw, and the threads in the two threaded holes rotate in opposite directions.
[0013] Furthermore, multiple fixed teeth are arranged in a ring array outside the transmission ratchet, and the rotation angle of the actuating teeth is 0°-90°.
[0014] Compared with the prior art, the present invention provides an automated screen printing machine with the following advantages: 1. By setting up an association mechanism, the association mechanism uses a reciprocating motor to drive the screw and ratchet transmission system, so that the screen printing component automatically triggers the rotation of the ring plate when returning, accurately switching the workpiece to be printed to the printing station, making full use of the return time, shortening the single cycle time, and improving printing efficiency.
[0015] 2. By setting up a loading and unloading mechanism, the bidirectional screw drives the two slide plates to move synchronously in opposite directions. Combined with the bidirectional clamping screw of the clamping mechanism, parallel loading / unloading of the two side placement seats can be achieved, reducing idle waiting time.
[0016] This application precisely switches the workpiece to be printed to the printing position, shortens the single cycle time, improves printing efficiency, and allows for parallel loading and unloading, reducing idle waiting time. Attached Figure Description
[0017] Figure 1This is a front view of the present invention. Figure 2 This is a side view of the present invention; Figure 3 This is a perspective view of the structure of the associated mechanism in this invention; Figure 4 This is a schematic diagram showing the positional relationship between the transmission ratchet and the transmission ring in this invention; Figure 5 This is a front structural diagram of the loading and unloading mechanism in this invention; Figure 6 This is a side view of the loading and unloading mechanism in this invention. Figure 7 This is a partial structural perspective view of the clamping mechanism in this invention; Figure 8 for Figure 7 Enlarged view of point A in the middle; Figure 9 This is a perspective view of the top plate structure in this invention.
[0018] In the diagram: 1. Base; 2. Vertical plate; 3. Reciprocating groove; 4. Reciprocating screw; 5. Reciprocating screw block; 6. Reciprocating motor; 7. Screen printing assembly; 8. Ring plate; 9. Placement seat; 10. Loading / unloading mechanism; 11. Linking mechanism; 12. Fixing plate; 13. Drive shaft; 14. Drive gear; 15. Drive ratchet; 16. Drive ring; 17. Fixing gear; 18. Actuating gear; 19. Pulley; 20. Intermediate shaft; 21. Mounting groove; 22. Fixing shaft; 23. Top plate; 24. Slide rail; 25. Slide plate; 26. Connecting plate; 27. 28. Bidirectional screw; 29. Transmission cavity; 30. Drive motor; 31. First bevel gear; 32. Second bevel gear; 33. Return plate; 34. Horizontal plate; 35. Groove; 36. Bidirectional clamping screw; 37. Clamping threaded block; 38. Clamping plate; 39. Lifting screw; 40. Longitudinal sliding sleeve; 41. Power shaft; 42. Power motor; 43. Lateral sliding sleeve; 44. Gear set; 45. Worm; 46. Worm wheel; 47. Rotary ring; 48. Transmission mechanism; 49. Clamping mechanism; 50. Limiting plate. Detailed Implementation
[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0020] As described in the background section, there are shortcomings in the existing technology. In order to solve the above-mentioned technical problems, this application proposes an automated screen printing machine.
[0021] like Figures 1-9 As shown, an automated screen printing machine includes a base 1, a vertical plate 2 mounted on the base 1, a screen printing assembly 7 mounted on the vertical plate 2, an annular plate 8 on the base 1, the annular plate 8 being rotatably mounted to the base 1 via a rotating ring 47, an association mechanism 11 for driving the screen printing assembly 7 and the vertical plate 2 on the vertical plate 2, a plurality of mounting slots 21 on the vertical plate 2, a placement seat 9 being embedded in the mounting slots 21, and a loading and unloading mechanism 10 for loading and unloading materials on the base 1.
[0022] To switch the workpiece position during the return stroke of the screen printing assembly 7, an association mechanism 11 is provided. The association mechanism 11 includes a reciprocating groove 3 on the vertical plate 2, with a reciprocating screw 4 rotatably mounted within the groove 3. One end of the reciprocating screw 4 rotatably passes through the vertical plate 2. A reciprocating motor 6 is mounted outside the vertical plate 2, with its drive shaft rotatably passing through the vertical plate 2 and coaxially mounted with the reciprocating screw 4. A reciprocating screw block 5 is threaded onto the external thread of the reciprocating screw 4, and the reciprocating screw block 5 is slidably mounted with the reciprocating groove 3. The screen printing assembly 7 is fixedly mounted with the reciprocating screw block 5. A fixing plate 12 is fixedly mounted on the base 1, with a drive shaft 13 rotatably passing through the fixing plate 12. It should be noted that the fixing plate 12 and the drive shaft 13 rotate in one direction only. A drive gear 14 is coaxially mounted on the drive shaft 13, and the lower end of the vertical plate 2 has an annular toothed groove that meshes with the drive gear 14. The drive shaft 13 and the reciprocating screw... The rods 4 are connected by a transmission mechanism 48. It should be noted that the transmission mechanism 48 includes a transmission ratchet 15 and a pulley 19. The transmission ratchet 15 is coaxially mounted with the transmission shaft 13. A transmission ring 16 is mounted on the outer side of the transmission ratchet 15. A moving tooth 18 is mounted on the inner side of the transmission ring 16. Multiple fixed teeth 17 are mounted on the outer side of the transmission ratchet 15. It should be noted that the multiple fixed teeth 17 are distributed in a ring array on the outer side of the transmission ratchet 15. The rotation angle of the moving tooth 18 is 0°-90°. The moving tooth 18 matches the multiple fixed teeth 17. The transmission ring 16 is rotatably mounted with the fixed plate 12. The pulley 19 is coaxially mounted with the reciprocating screw 4. The pulley 19 and the transmission ring 16 are connected by a synchronous belt. It should be noted that the surface of the transmission ring 16 has teeth that match the synchronous belt. Two intermediate shafts 20 that match the synchronous belt are rotatably mounted on the vertical plate 2.
[0023] It should be noted that the transmission ratchet 15 and transmission ring 16, together with the fixed tooth 17 and the moving tooth 18, form a one-way transmission, ensuring that the ring plate is locked during the printing stroke to avoid vibration affecting accuracy. At the same time, the power is released during the return stroke to achieve seamless switching.
[0024] Through the above technical features: the reciprocating motor 6 drives the reciprocating screw 4 to rotate, the reciprocating screw 4 drives the pulley 19 to rotate, the pulley 19 drives the transmission ring 16 to rotate via the synchronous belt, the transmission ring 16 drives the fixed tooth 17 to rotate via the actuating tooth 18, the fixed tooth 17 drives the transmission ratchet 15 to rotate, the transmission ratchet 15 drives the transmission shaft 13 to rotate, the transmission shaft 13 drives the drive gear 14 to rotate, the drive gear 14 drives the annular plate 8 to rotate, and the annular plate 8 drives the placement seat 9 to rotate. When the screen printing assembly 7 is in the printing stroke, the actuating tooth 18 slips from the fixed tooth 17, and the placement seat 9 located directly below the screen printing assembly 7 remains in the same position, so the workpiece can be printed normally. When the screen printing assembly 7 is in the return stroke, the screen printing assembly 7 does not print on the workpiece, and the placement seat 9 rotates. When the screen printing assembly 7 returns to the initial position, the new placement seat 9 moves to the position below the screen printing assembly 7, thus completing one printing cycle, which is more convenient for printing on the workpiece.
[0025] To facilitate loading and unloading of materials onto the placement seat 9, a loading and unloading mechanism 10 is provided. The loading and unloading mechanism 10 includes a fixed shaft 22 fixedly installed on the upper end of the base 1. A top plate 23 is fixedly connected to the upper end of the fixed shaft 22. Slide rails 24 are fixedly connected to both the left and right ends of the top plate 23. Slide plates 25 are slidably installed in the slide rails 24. It is worth mentioning that both slide plates 25 are provided with threaded holes that match the bidirectional screw 27. The threads in the two threaded holes are turned in opposite directions. A clamping mechanism 49 for clamping materials is provided on the slide plates 25. A transmission cavity 28 is provided in the top plate 23. The bidirectional screw 27 passes through the transmission cavity 28. A drive motor 29 is installed in the transmission cavity 28. A first bevel gear 30 is coaxially installed on the drive shaft of the drive motor 29. A second bevel gear 31 is coaxially installed on the bidirectional screw 27. The first bevel gear 30 and the second bevel gear 31 are meshed together.
[0026] In this invention, the clamping mechanism 49 includes a slidable through-slide plate 25 with a profile plate 32. A horizontal plate 33 is fixedly connected to the lower end of the profile plate 32. A groove 34 is provided at the lower end of the horizontal plate 33. A bidirectional clamping screw 35 is rotatably installed within the groove 34. Two clamping threaded blocks 36 are threaded onto the external side of the bidirectional clamping screw 35. Both clamping threaded blocks 36 are slidably installed with respect to the groove 34. A clamping plate 37 is fixedly connected to the lower end of the two clamping threaded blocks 36. A clamping motor 38 is installed outside the horizontal plate 33. The drive shaft of the clamping motor 38 rotatably passes through the horizontal plate 33 and is coaxially installed with the bidirectional clamping screw 35. A lifting screw 39 is rotatably installed within the profile plate 32. The lifting screw 39 is threaded through the slide plate 25. A longitudinal sliding sleeve 40 is slidably fitted onto the external side of the lifting screw 39. The slide plate 25 is rotatably mounted on the slide plate 20. A power shaft 41 is rotatably mounted between the two connecting plates 26. A power motor 42 is mounted on one end of one of the connecting plates 26. The drive shaft of the power motor 42 rotates through the connecting plate 26 and is coaxially mounted with the power shaft 41. The power shaft 41 rotates through the top plate 23. A transverse sliding sleeve 43 is slidably fitted onto the power shaft 41. The transverse sliding sleeve 43 is rotatably connected to the slide plate 25 through a limiting plate 50. The transverse sliding sleeve 43 and the longitudinal sliding sleeve 40 are connected by a gear set 44. It is worth mentioning that the gear set 44 includes a worm 45 and a worm wheel 46 that mesh with each other. The worm 45 is coaxially mounted with the transverse sliding sleeve 43, and the worm wheel 46 is coaxially mounted with the longitudinal sliding sleeve 40. The worm 45 and the worm wheel 46 are meshed together.
[0027] Through the above technical features: the drive shaft of the power motor 42 drives the power shaft 41 to rotate, the power shaft 41 drives the transverse sliding sleeve 43 to rotate, the transverse sliding sleeve 43 drives the longitudinal sliding sleeve 40 to rotate, the longitudinal sliding sleeve 40 drives the lifting screw 39 to rotate, the lifting screw 39 drives the return plate 32 to rise and fall, the return plate 32 drives the horizontal plate 33 to rise and fall until the appropriate position is reached. At this time, the clamping motor 38 drives the bidirectional clamping screw 35 to rotate, the bidirectional clamping screw 35 drives the two clamping threaded blocks 36 to move relative to each other, the clamping threaded blocks 36 drive the clamping plate 37 to move, so that the material can be clamped and released by the clamping plate 37. The drive motor 29 drives the bidirectional screw 27 to rotate, the bidirectional screw 27 drives the two sliding plates 25 to move relative to each other, the sliding plates 25 drive the horizontal plate 33 to move, and the horizontal plate 33 can move the material by the clamping plate 37. So that when the material screen printing component 7 prints on the workpiece, the placement seats 9 on both sides can be loaded and unloaded respectively, without manual operation, which is an automated operation and improves the printing efficiency of the screen printing machine.
[0028] Working principle: 1) Printing and changing workpieces: The reciprocating motor 6 drives the reciprocating screw 4 to rotate, which in turn drives the pulley 19 to rotate. The pulley 19 drives the transmission ring 16 to rotate via a synchronous belt. The transmission ring 16 drives the fixed gear 17 to rotate via the actuating gear 18. The fixed gear 17 drives the transmission ratchet 15 to rotate, which in turn drives the transmission shaft 13 to rotate. The transmission shaft 13 drives the drive gear 14 to rotate, which in turn drives the annular plate 8 to rotate. The annular plate 8 drives the placement seat 9 to rotate. When the screen printing assembly 7 is in the printing stroke, the actuating gear 18 slips against the fixed gear 17, and the placement seat 9, located directly below the screen printing assembly 7, remains in its original position, allowing for normal printing of the workpiece. When the screen printing assembly 7 is in the return stroke, it does not print on the workpiece. The placement seat 9 rotates, and when the screen printing assembly 7 returns to its initial position, the new placement seat 9 moves to the position below the screen printing assembly 7, thus completing one printing cycle. This method of printing on workpieces is quite convenient. 2) Loading and unloading workpieces: The drive shaft of the power motor 42 drives the power shaft 41 to rotate, which in turn drives the transverse sliding sleeve 43 to rotate. The transverse sliding sleeve 43 then drives the longitudinal sliding sleeve 40 to rotate, which in turn drives the lifting screw 39 to rotate. The lifting screw 39 then drives the return plate 32 to rise and fall, which in turn drives the horizontal plate 33 to rise and fall until the workpiece is in the appropriate position. At this point, the clamping motor 38 drives the bidirectional clamping screw 35 to rotate, which in turn drives the two clamping threaded blocks 36 to rotate. The relative movement of the clamping threaded block 36 drives the clamping plate 37 to move, which can clamp and release the material through the clamping plate 37. The drive motor 29 drives the bidirectional screw 27 to rotate, which drives the two sliding plates 25 to move relative to each other. The sliding plates 25 drive the horizontal plate 33 to move, and the horizontal plate 33 can move the material through the clamping plate 37. This allows the material to be loaded and unloaded from the placement seats 9 on both sides when the material screen printing component 7 is printing on the workpiece. No manual operation is required, which is an automated operation and improves the printing efficiency of the screen printing machine.
[0029] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.
[0030] The detailed descriptions listed above are merely specific descriptions of feasible implementation methods of this application and are not intended to limit the scope of protection of this application. All equivalent implementation methods or modifications made without departing from the spirit of the art of this application should be included within the scope of protection of this invention.
Claims
1. An automated screen printing machine, characterized in that: Includes a base (1), on which a vertical plate (2) is mounted, on which a screen printing component (7) is mounted, on which an annular plate (8) is provided, the annular plate (8) being rotatably mounted to the base (1) via a rotating ring (47), on which an association mechanism (11) for driving the screen printing component (7) and the vertical plate (2) is provided, on which a plurality of mounting slots (21) are provided, on which a placement seat (9) is embedded, and on which a loading and unloading mechanism (10) for loading and unloading materials is provided.
2. The automated screen printing machine according to claim 1, characterized in that: The associated mechanism (11) includes a reciprocating groove (3) on a vertical plate (2), a reciprocating screw (4) is rotatably installed in the reciprocating groove (3), one end of the reciprocating screw (4) rotatably passes through the vertical plate (2), a reciprocating motor (6) is installed outside the vertical plate (2), the drive shaft of the reciprocating motor (6) rotatably passes through the vertical plate (2) and is coaxially installed with the reciprocating screw (4), a reciprocating screw block (5) is threaded onto the external thread of the reciprocating screw (4), and the reciprocating screw block (5) is connected to... The reciprocating groove (3) is slidably installed, the screen printing assembly (7) is fixedly installed with the reciprocating screw block (5), the base (1) is fixedly installed with a fixing plate (12), the fixing plate (12) has a rotating through drive shaft (13), the drive shaft (13) is coaxially installed with a drive gear (14), the lower end of the vertical plate (2) is provided with an annular tooth groove that meshes with the drive gear (14), and the drive shaft (13) and the reciprocating screw (4) are connected by a transmission mechanism (48).
3. An automated screen printing machine according to claim 2, characterized in that: The transmission mechanism (48) includes a transmission ratchet (15) and a pulley (19). The transmission ratchet (15) is coaxially mounted with the transmission shaft (13). The transmission ratchet (15) is fitted with a transmission ring (16). The inner side of the transmission ring (16) is fitted with a moving tooth (18). The outer side of the transmission ratchet (15) is fitted with multiple fixed teeth (17). The moving tooth (18) matches the multiple fixed teeth (17). The transmission ring (16) is rotatably mounted with the fixed plate (12). The pulley (19) is coaxially mounted with the reciprocating screw (4). The pulley (19) and the transmission ring (16) are connected by a synchronous belt. Two intermediate shafts (20) that match the synchronous belt are rotatably mounted on the vertical plate (2).
4. An automated screen printing machine according to claim 1, characterized in that: The loading and unloading mechanism (10) includes a fixed shaft (22) fixedly installed on the upper end of the base (1). The upper end of the fixed shaft (22) is fixedly connected to a top plate (23). The left and right ends of the top plate (23) are fixedly connected to slide rails (24). A slide plate (25) is slidably installed in the slide rail (24). A clamping mechanism (49) for clamping materials is provided on the slide plate (25). A transmission cavity (28) is provided in the top plate (23). A bidirectional screw (27) is installed through the transmission cavity (28). A drive motor (29) is installed in the transmission cavity (28). A first bevel gear (30) is coaxially installed on the drive shaft of the drive motor (29). A second bevel gear (31) is coaxially installed on the bidirectional screw (27). The first bevel gear (30) and the second bevel gear (31) are meshed together.
5. An automated screen printing machine according to claim 4, characterized in that: The clamping mechanism (49) includes a sliding plate (32) that slides through the sliding plate (25). A horizontal plate (33) is fixedly connected to the lower end of the sliding plate (32). A groove (34) is provided at the lower end of the horizontal plate (33). A bidirectional clamping screw (35) is rotatably installed in the groove (34). Two clamping threaded blocks (36) are threaded on the external side of the bidirectional clamping screw (35). Both clamping threaded blocks (36) are slidably installed in the groove (34). A clamping plate (37) is fixedly connected to the lower end of the two clamping threaded blocks (36). A clamping motor (38) is installed outside the horizontal plate (33). The drive shaft of the clamping motor (38) rotates through the horizontal plate (33) and is coaxially installed with the bidirectional clamping screw (35). A lifting screw (39) is rotatably installed in the sliding plate (32). 39) The threaded slide plate (25) is provided. The lifting screw (39) is slidably sleeved with a longitudinal sliding sleeve (40). The longitudinal sliding sleeve (40) is rotatably installed with the slide plate (25). A power shaft (41) is rotatably installed between the two connecting plates (26). A power motor (42) is installed at one end of one of the connecting plates (26). The drive shaft of the power motor (42) rotatably passes through the connecting plate (26) and is coaxially installed with the power shaft (41). The power shaft (41) rotatably passes through the top plate (23). The power shaft (41) is slidably sleeved with a transverse sliding sleeve (43). The transverse sliding sleeve (43) is rotatably connected to the slide plate (25) through a limiting plate (50). The transverse sliding sleeve (43) and the longitudinal sliding sleeve (40) are connected by a gear set (44).
6. An automated screen printing machine according to claim 5, characterized in that: The gear set (44) includes a worm (45) and a worm wheel (46) that mesh with each other. The worm (45) is coaxially mounted with a transverse sliding sleeve (43), and the worm wheel (46) is coaxially mounted with a longitudinal sliding sleeve (40). The worm (45) and the worm wheel (46) are meshed together.
7. An automated screen printing machine according to claim 5, characterized in that: Both of the slide plates (25) are provided with threaded holes that match the bidirectional screw (27), and the threads in the two threaded holes are in opposite directions.
8. An automated screen printing machine according to claim 3, characterized in that: Multiple fixed teeth (17) are arranged in a ring array outside the transmission ratchet (15), and the rotation angle of the actuating teeth (18) is 0°-90°.