Lifting type screen printing machine with adjustable breadth

Abstract

The invention belongs to the technical field of printing equipment, and provides a breadth-adjustable lifting type screen printing machine which comprises a supporting groove, and a placing table is mounted at the upper end of the supporting groove; the number of the lifting grooves is two, the two lifting grooves are oppositely installed at the upper end of the supporting groove, reciprocating threaded rods are rotatably installed in the two supporting grooves, lifting plates are slidably installed in the two lifting grooves, and threaded rings are arranged in the two lifting plates in a penetrating mode; lifting is achieved through cooperation of the reciprocating threaded rod and the threaded ring, so that lifting type printing operation of the printing screen frame and the screen body is achieved, compared with a traditional rotary printing screen frame and screen body, the screen body vertically acts on the surface of a printing stock through lifting, local pressure nonuniformity and pattern deformation caused by angle deviation during rotation can be avoided, and the printing quality is improved. Printed patterns are more accurate and clear, and the printing quality is improved. In the lifting process, the contact area and pressure of the net body and the printing stock are easy to control.

Description

Technical Field

[0001] The invention belongs to the technical field of printing equipment, in particular to a lifting screen printing machine with adjustable width. Background Art

[0002] As a widely used printing device, screen printers play an important role in various fields such as electronics, textiles, glass products, and plastic products due to their unique printing principles and advantages. However, traditional screen printers have some limitations in practical applications, prompting continuous research and development and improvement to meet the growing and diverse printing needs.

[0003] Traditional screen printers typically utilize a fixed-size printing frame that rotates or flips to achieve contact and separation with the substrate. While this design offers certain advantages in terms of ease of operation, it can easily lead to uneven pressure on the substrate during printing. Because the screen frame is fixed and rotates to open and close, achieving completely uniform contact pressure between the screen and substrate during printing is often difficult. This is particularly true when processing large or irregularly shaped substrates. Significant pressure differences between the edges and center of the screen can lead to inconsistent ink transfer, resulting in uneven depth of the printed pattern and blurred edges.

[0004] Secondly, during the printing process, ink inevitably remains in the mesh and on the surface of the mesh. This is primarily due to a combination of factors, including ink viscosity, printing speed, and squeegee pressure. The problem of ink residue is particularly severe when printing high-viscosity inks or fine patterns. If residual ink is not promptly cleaned, it will gradually dry and solidify in the mesh, forming a blockage. This not only hinders the normal passage of subsequent ink, resulting in missing or broken printed patterns, but can also cause abnormal printing pressure due to localized mesh blockage, further exacerbating print quality issues. In extreme cases, mesh blockage can even interrupt the printing process, requiring downtime for cleaning, severely impacting production efficiency.

[0005] Therefore, those skilled in the art have proposed a lifting screen printing machine with adjustable width to solve the problems raised in the background art. Summary of the Invention

[0006] In order to solve the above technical problems, the present invention provides a lifting screen printing machine with adjustable width to solve the problems in the background technology.

[0007] A lifting type screen printing machine with adjustable width, comprising:

[0008] A supporting trough, wherein a placing platform is installed at the upper end of the supporting trough;

[0009] There are two lifting slots, which are relatively installed on the upper ends of the supporting slots. Reciprocating threaded rods are rotatably installed inside the two supporting slots. Lifting plates are slidably installed inside the two lifting slots. Threaded rings are passed through the two lifting plates, and the threaded rings are engaged with the reciprocating threaded rods. Two pulleys 1 and 2 are relatively rotatably installed at the lower ends of the lifting slots. The two reciprocating threaded rods are respectively connected to the two pulleys 1 and 2, and the pulleys 1 and 2 are connected through a transmission belt. A limiting slot is provided on one side of the two lifting plates, a printing screen frame is installed between the two limiting slots, and a mesh body is installed at the lower end of the printing screen frame;

[0010] A guide groove is installed at the lower end of the limit groove, a reciprocating screw is rotatably installed inside the limit groove, a movable plate is slidably connected inside the limit groove, a wire ring is provided inside the movable plate, the wire ring is threadedly connected to the reciprocating screw, a brush is installed on one side of the movable plate, and the brush is located at the lower end of the printing screen frame.

[0011] Preferably, a fixing plate is installed on the upper ends of the two lifting slots, a guide rail is installed on the upper ends of the two fixing plates, a slide is slidably installed inside the guide rail, and a hanger is installed on the upper end of the slide.

[0012] Preferably, rotating wheel 1 and rotating wheel 2 are installed at both ends of the fixed plate for relative rotation, and rotating wheel 1 and rotating wheel 2 are connected through a conveyor belt transmission. A reciprocating rotating part is installed on one side of the fixed plate, and the output end of the reciprocating rotating part is connected to rotating wheel 1. A driving block is provided on the outer surface of the conveyor belt, and the driving block is connected to the hanger.

[0013] Preferably, a telescopic member is installed at the upper end of the hanger, and a connecting plate is slidably installed inside the hanger.

[0014] Preferably, support plates are installed at both ends of the connecting plate, and rotating shafts are rotatably installed inside the two support plates, and a scraper is installed between the two rotating shafts.

[0015] Preferably, both ends of the rotating shaft are provided with limit plates, one side of the two support plates is provided with a plurality of limit holes, one side of the limit plates is connected with a limit pin, and the limit pin is inserted into the limit hole.

[0016] Preferably, a reciprocating rotating member is installed on one side of the fixed plate, and the output end of the reciprocating rotating member is connected to the rotating wheel.

[0017] Preferably, the upper end of the limiting groove is threadedly connected with a bolt, the lower end of the bolt extends into the limiting groove, and the lower end of the bolt is installed with a pressure plate, which abuts against the upper end of the printing screen frame.

[0018] Preferably, a reciprocating drive member is installed at the lower end of the support groove, and the output end of the reciprocating drive member is connected to a pulley. A transmission member is installed on one side of the guide groove, and the output end of the transmission member is connected to the reciprocating screw rod.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention achieves lifting and lowering by cooperating with a reciprocating threaded rod and a threaded ring, thereby realizing the lifting and lowering printing operation of the printing screen frame and the screen body. Compared with the traditional rotary printing screen frame and screen body, the screen body acts vertically on the surface of the substrate by lifting and lowering, which can avoid local pressure unevenness and pattern deformation caused by angle deviation during rotation, making the printed pattern more accurate and clear, and improving the printing quality. During the lifting process, the contact area and pressure between the screen body and the substrate are easy to control and can be precisely adjusted according to the characteristics of the substrate and the pattern requirements to ensure the consistency and accuracy of the printing. Secondly, the lifting height of the screen body can be flexibly adjusted to adapt to substrates of different thicknesses, broadening the application range of the equipment and enabling it to handle printing needs of various types and sizes. Finally, after the screen body descends to fit the substrate and completes printing, it quickly rises to replace the substrate. The entire process is coherent and compact, without the need for additional rotation waiting time, greatly improving the efficiency of the printing process and meeting the needs of large-scale production. The lifting structure makes the printing process more direct and efficient, realizes an automated production process, and further improves work efficiency and production automation level.

[0021] 2. The present invention utilizes pulleys 1 and 2, along with a conveyor belt, to synchronize the rotation of the two reciprocating threaded rods, thus avoiding precision deviations caused by asynchrony. If the two reciprocating threaded rods rotate asynchronously, the lifting heights of the lifting plates on both sides would be inconsistent. This inconsistency would cause the printing screen frame and screen to tilt, preventing uniform contact with the substrate on the platform and resulting in uneven distribution of printing pressure.

[0022] 3. The present invention can regularly clean the mesh body by the brush driven by the transmission parts and the reciprocating screw, remove the residual ink, effectively prevent the mesh from being clogged, ensure the permeability of the mesh body, thereby maintaining the stability of the printing quality, avoiding the problems of blurred and incomplete patterns caused by mesh clogging, making the printed pattern clearer and more delicate, and improving the visual effect and quality of the printed product. Secondly, the traditional mesh cleaning method usually requires manual cleaning after shutdown, which not only increases the downtime, but also reduces production efficiency. The device can automatically complete the cleaning of the mesh body in the intervals between printing operations through the automatic cleaning function of the brush, reducing the downtime caused by cleaning the mesh body and improving the overall operating efficiency of the equipment. The automated cleaning process enables the equipment to operate more continuously, avoiding the frequent interruption of production due to mesh blockage, ensuring the continuity and stability of production, and helping to improve the execution efficiency of the production plan and the timely completion of production tasks. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the present invention from a first perspective;

[0024] Figure 2 This is a schematic diagram of the structure from a second viewing angle of the present invention;

[0025] Figure 3 This is a schematic structural diagram of the present invention from a third viewing angle;

[0026] Figure 4 This is a schematic diagram of the structure from a fourth viewing angle of the present invention;

[0027] Figure 5 For the present invention Figure 4 A partial enlarged view of the middle part;

[0028] Figure 6 This is a schematic diagram of the fifth viewing angle structure of the present invention.

[0029] In the picture:

[0030] 1. Support groove; 2. Placement table; 3. Lifting groove; 4. Reciprocating threaded rod; 5. Lifting plate; 6. Pulley 1; 7. Pulley 2; 8. Transmission belt; 9. Reciprocating drive member; 10. Limiting groove; 11. Bolt; 12. Pressure plate; 13. Printing screen frame; 14. Screen body; 15. Fixed plate; 16. Guide rail; 17. Slide; 18. Hanger; 19. Rotating wheel 1; 20. Rotating wheel 2; 21. Conveyor belt; 22. Drive block; 23. Reciprocating rotating member; 24. Telescopic member; 25. Connecting plate; 26. Support plate; 27. Rotating shaft; 28. Scraper; 29. ​​Limiting hole; 30. Limiting plate; 31. Limiting pin; 32. Guide groove; 33. Reciprocating screw rod; 34. Transmission member; 35. Moving plate; 36. Brush. DETAILED DESCRIPTION

[0031] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0032] Example 1

[0033] refer to Figures 1 to 3 The present invention provides a lifting type screen printing machine with adjustable width, comprising:

[0034] Supporting tank 1, with a placing platform 2 installed on the upper end of the supporting tank 1;

[0035] There are two lifting grooves 3, which are relatively installed on the upper end of the support groove 1. Reciprocating threaded rods 4 are rotatably installed inside the two support grooves 1. Lifting plates 5 are slidably installed inside the two lifting grooves 3. Threaded rings are passed through the inside of the two lifting plates 5, which engage with the reciprocating threaded rods 4. Two pulleys 1 6 and pulley 2 7 are relatively rotatably installed at the lower end of the lifting groove 3. The two reciprocating threaded rods 4 are respectively connected to the two pulleys 1 6 and pulley 2 7. The pulley 1 6 and the pulley 2 7 are connected through a transmission belt 8. A limiting groove 10 is provided on one side of the two lifting plates 5. A printing screen frame 13 is installed between the two limiting grooves 10, and a mesh body 14 is installed at the lower end of the printing screen frame 13.

[0036] The upper end of the limiting groove 10 is threadedly connected with a bolt 11 , the lower end of the bolt 11 extends into the limiting groove 10 , and the lower end of the bolt 11 is installed with a pressing plate 12 , which abuts against the upper end of the printing screen frame 13 .

[0037] The lower end of the support groove 1 is provided with a reciprocating drive member 9, and the output end of the reciprocating drive member 9 is connected to the pulley 1 6. The reciprocating drive member 9 includes but is not limited to a reciprocating motor.

[0038] As can be seen from the above, the printing material is first placed on the placement table 2. The reciprocating drive element 9 is activated through a control system such as a PLC control component. The output end of the reciprocating drive element 9 drives pulley 1 6 to rotate. Since pulley 1 6 is connected to pulley 2 7 via a transmission belt 8, pulley 2 7 is driven synchronously, achieving rotation in the same direction and at the same speed. At this time, the two reciprocating threaded rods 4 connected to pulley 1 6 and pulley 2 7, respectively, also begin to rotate synchronously in the same direction. Because the threaded ring on the lifting plate 5 engages with the reciprocating threaded rod 4, the lifting plate 5 will move vertically within the lifting groove 3 under the action of the rotation of the reciprocating threaded rod 4. When the reciprocating threaded rod 4 rotates forward, the lifting plate 5 rises; when it rotates backward, the lifting plate 5 descends. As the two lifting plates 5 rise and fall, the limit slots 10 on one side of them rise and fall synchronously, thereby driving the printing screen frame 13 installed between the two limit slots 10 and the mesh body 14 at the lower end to rise and fall as a whole. When the screen 14 descends to contact the substrate on the placement table 2, it cooperates with the corresponding printing operation, and after printing, it rises again to replace the next substrate to be printed, thus completing the screen printing process. The entire process is driven by the reciprocating drive member 9, which is transmitted by pulley 1 6, pulley 2 7 and transmission belt 8. The reciprocating threaded rod 4 cooperates with the threaded ring to achieve lifting and lowering, thereby realizing the lifting and lowering printing operation of the printing frame 13 and screen 14. Compared with the traditional rotary printing screen frame 13 and screen 14, the screen 14 acts vertically on the surface of the substrate through lifting and lowering, which can avoid localized pressure unevenness and pattern deformation caused by angle deviation during rotation, making the printed pattern more accurate and clear, and improving printing quality. During the lifting process, the contact area and pressure between the mesh 14 and the substrate are easy to control, and can be precisely adjusted according to the characteristics of the substrate and the pattern requirements to ensure the consistency and accuracy of printing. Secondly, the lifting height of the mesh 14 can be flexibly adjusted to adapt to substrates of different thicknesses, broadening the application range of the equipment so that it can handle printing needs of various types and sizes. Finally, after the mesh 14 descends and fits the substrate to complete printing, it quickly rises to replace the substrate. The whole process is coherent and compact, without the need for additional rotation waiting time, which greatly improves the efficiency of the printing process and meets the needs of large-scale production. The lifting structure makes the printing process more direct and efficient, realizes automated production processes, and further improves work efficiency and production automation levels.

[0039] The synchronous rotation of the two reciprocating threaded rods 4, achieved through pulley 1 6, pulley 2 7, and transmission belt 8, avoids precision deviations caused by asynchronous rotation. If the two reciprocating threaded rods 4 rotate asynchronously, the lifting heights of the lifting plates 5 on both sides will be inconsistent. This inconsistency will cause the printing screen frame 13 and screen body 14 to tilt, preventing uniform contact with the substrate on the placement table 2, resulting in uneven distribution of printing pressure.

[0040] Example 2

[0041] refer to Figures 1 to 5The present invention provides a lifting type screen printing machine with adjustable width, further comprising:

[0042] The supporting groove 1 has a placing platform 2 installed on the upper end of the supporting groove 1.

[0043] A fixing plate 15 is installed on the upper end of the two lifting grooves 3, and a guide rail 16 is installed on the upper end of the two fixing plates 15. A slide 17 is slidably installed inside the guide rail 16, and a hanger 18 is installed on the upper end of the slide 17.

[0044] A rotating wheel 19 and a rotating wheel 2 20 are installed at both ends of the fixed plate 15 for relative rotation. The rotating wheel 19 and the rotating wheel 2 20 are connected through a conveyor belt 21. A reciprocating rotating member 23 is installed on one side of the fixed plate 15. The output end of the reciprocating rotating member 23 is connected to the rotating wheel 19. A driving block 22 is provided on the outer surface of the conveyor belt 21, and the driving block 22 is connected to the hanger 18.

[0045] A telescopic member 24 is installed at the upper end of the hanger 18, and a connecting plate 25 is slidably installed inside the hanger 18. The telescopic member 24 includes but is not limited to an electric telescopic rod.

[0046] Support plates 26 are installed at both ends of the connecting plate 25 , and rotating shafts 27 are rotatably installed inside the two support plates 26 , and a scraper 28 is installed between the two rotating shafts 27 .

[0047] Limiting plates 30 are provided at both ends of the rotating shaft 27 , and a plurality of limiting holes 29 are opened on one side of the two supporting plates 26 . A limiting pin 31 is inserted into one side of the limiting plate 30 , and the limiting pin 31 is inserted into the limiting hole 29 .

[0048] A reciprocating rotating member 23 is installed on one side of the fixed plate 15, and the output end of the reciprocating rotating member 23 is connected to the rotating wheel 19. The reciprocating rotating member 23 includes but is not limited to a reciprocating motor.

[0049] As can be seen above, the scraper 28 drives the rotating shaft 27 to rotate, thereby adjusting the tilt angle of the scraper 28 to suit different printing process requirements. After adjusting to the appropriate position, the limit pin 31 on the limit plate 30 is inserted into the limit hole 29 on the side of the support plate 26 to fix the angle of the scraper 28 and ensure the stability of the scraper 28 during the printing process.

[0050] The telescopic length can be adjusted as needed through the telescopic member 24. Its telescopic action changes the position of the connecting plate 25 in the hanger 18, thereby driving the support plate 26 and the scraper 28 to move as a whole, thereby adjusting the position of the scraper 28 and adjusting the scraper 28 to contact the mesh body 14.

[0051] The reciprocating member 23 is activated, and its output end drives the rotating wheel 19 to rotate. Because rotating wheel 19 and rotating wheel 20 are connected via the conveyor belt 21, rotating wheel 20 also rotates synchronously in the same direction. Driven by rotating wheels 19 and 20, the conveyor belt 21 reciprocates, and the drive block 22 on the outer surface of the conveyor belt 21 moves back and forth. This in turn drives the connected hanger 18 to reciprocate along the guide rail 16, thereby driving the scraper 28 to reciprocate across the upper end of the mesh 14, further applying ink to the substrate, thereby printing.

[0052] Example 3

[0053] refer to Figure 1 as well as Figure 6 The present invention provides a lifting type screen printing machine with adjustable width, further comprising:

[0054] Supporting tank 1, with a placing platform 2 installed on the upper end of the supporting tank 1;

[0055] The guide groove 32 is installed at the lower end of the limit groove 10. A reciprocating screw rod 33 is rotatably installed inside the limit groove 10. A movable plate 35 is slidably connected inside the limit groove 10. A wire ring is provided inside the movable plate 35. The wire ring is threadedly connected to the reciprocating screw rod 33. A brush 36 is installed on one side of the movable plate 35. The brush 36 is located at the lower end of the printing screen frame 13.

[0056] A transmission member 34 is installed on one side of the guide groove 32 , and an output end of the transmission member 34 is connected to the reciprocating screw rod 33 . The transmission member 34 includes but is not limited to a drive motor.

[0057] As can be seen from the above, when printing is required on the screen 14, the transmission member 34 is activated, which then drives the reciprocating screw 33 to rotate. A wire ring is provided within the movable plate 35, which is threadedly connected to the reciprocating screw 33. As the reciprocating screw 33 rotates, the movable plate 35 slides within the limiting groove 10. A brush 36 is mounted on one side of the movable plate 35, located at the lower end of the printing screen frame 13. As the movable plate 35 slides, the brush 36 cleans the screen 14 at the lower end of the printing screen frame 13, removing any residual ink on the screen 14 and preventing clogging of the screen 14 due to drying of the ink.

[0058] During the printing process, ink easily remains on the mesh 14. If not cleaned in time, the ink will gradually dry out, causing the meshes of the mesh 14 to become clogged. Driven by the transmission member 34 and the reciprocating screw 33, the brush 36 can regularly clean the mesh 14 to remove residual ink, effectively preventing mesh clogging and ensuring the permeability of the mesh 14, thereby maintaining the stability of printing quality and avoiding problems such as blurred and incomplete patterns caused by mesh clogging. This makes the printed pattern clearer and more delicate, improving the visual effect and quality of the printed product. Secondly, the traditional method of cleaning the mesh 14 usually requires manual cleaning after the machine is shut down, which not only increases downtime but also reduces production efficiency. The device can automatically clean the mesh 14 in between printing operations through the automatic cleaning function of the brush 36, reducing the downtime caused by cleaning the mesh 14 and improving the overall operating efficiency of the equipment. The automated cleaning process enables the equipment to operate more continuously, avoiding frequent production interruptions due to blockage of the mesh 14, ensuring the continuity and stability of production, and helping to improve the execution efficiency of the production plan and the timely completion of production tasks.

[0059] All standard parts used in the present invention can be purchased commercially, and special-shaped parts can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. In addition, the circuit connections adopt conventional connection methods in the prior art and will not be described in detail here. Any matters not described in detail in this specification belong to the prior art known to professionals in this field.

[0060] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. "Multiple" means two or more, unless otherwise specifically defined.

[0061] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0062] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0063] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0064] In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0065] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A lifting screen printing machine with adjustable width, characterized by: include: A support trough (1), wherein a placement platform (2) is installed at the upper end of the support trough (1); There are two lifting grooves (3), the two lifting grooves (3) are relatively installed on the upper end of the support groove (1), the two support grooves (1) are both rotatably installed with reciprocating threaded rods (4), the two lifting grooves (3) are both slidably installed with lifting plates (5), the two lifting plates (5) are both penetrated with threaded rings, the threaded rings are engaged with the reciprocating threaded rods (4), the lower end of the lifting groove (3) is relatively rotatably installed with two pulleys (6) and two pulleys (7), the two reciprocating threaded rods (4) are respectively connected to the two pulleys (6) and the pulleys (7), the pulleys (6) and the pulleys (7) are connected by a transmission belt (8), one side of the two lifting plates (5) is provided with a limiting groove (10), a printing screen frame (13) is installed between the two limiting grooves (10), and a mesh body (14) is installed at the lower end of the printing screen frame (13); A guide groove (32) is installed at the lower end of the limiting groove (10); a reciprocating screw rod (33) is rotatably installed inside the limiting groove (10); a movable plate (35) is slidably connected inside the limiting groove (10); a wire ring is provided inside the movable plate (35); the wire ring is threadedly connected to the reciprocating screw rod (33); a brush (36) is installed on one side of the movable plate (35); and the brush (36) is located at the lower end of the printing screen frame (13).

2. The lifting type screen printing machine with adjustable width as claimed in claim 1, characterized in that: The upper ends of the two lifting slots (3) are both equipped with fixed plates (15), the upper ends of the two fixed plates (15) are both equipped with guide rails (16), a slide seat (17) is slidably installed inside the guide rail (16), and a hanger (18) is installed on the upper end of the slide seat (17).

3. The lifting type screen printing machine with adjustable width as claimed in claim 2, characterized in that: A rotating wheel 1 (19) and a rotating wheel 2 (20) are relatively rotatably mounted at both ends of the fixed plate (15). The rotating wheel 1 (19) and the rotating wheel 2 (20) are connected via a transmission belt (21). A reciprocating rotating member (23) is mounted on one side of the fixed plate (15). The output end of the reciprocating rotating member (23) is connected to the rotating wheel 1 (19). A driving block (22) is provided on the outer surface of the transmission belt (21), and the driving block (22) is connected to the hanger (18).

4. The lifting type screen printing machine with adjustable width as claimed in claim 3, characterized in that: A telescopic member (24) is installed at the upper end of the hanger (18), and a connecting plate (25) is slidably installed inside the hanger (18).

5. The lifting type screen printing machine with adjustable width as claimed in claim 4, characterized in that: Support plates (26) are installed at both ends of the connecting plate (25), rotating shafts (27) are rotatably installed inside the two support plates (26), and a scraper (28) is installed between the two rotating shafts (27).

6. The lifting type screen printing machine with adjustable width as claimed in claim 5, characterized in that: Limiting plates (30) are provided at both ends of the rotating shaft (27), and a plurality of limiting holes (29) are opened on one side of the two supporting plates (26). A limiting pin (31) is inserted into one side of the limiting plate (30), and the limiting pin (31) is inserted into the limiting hole (29).

7. The lifting type screen printing machine with adjustable width as claimed in claim 6, characterized in that: A reciprocating rotating member (23) is installed on one side of the fixed plate (15), and the output end of the reciprocating rotating member (23) is connected to the rotating wheel (19).

8. The lifting type screen printing machine with adjustable width as claimed in claim 1, characterized in that: The upper end of the limiting groove (10) is threadedly connected with a bolt (11), the lower end of the bolt (11) extends into the interior of the limiting groove (10), and the lower end of the bolt (11) is installed with a pressure plate (12), and the pressure plate (12) is in contact with the upper end of the printing screen frame (13).

9. The lifting type screen printing machine with adjustable width as claimed in claim 1, characterized in that: A reciprocating drive member (9) is installed at the lower end of the support groove (1), and the output end of the reciprocating drive member (9) is connected to a pulley (6). A transmission member (34) is installed on one side of the guide groove (32), and the output end of the transmission member (34) is connected to a reciprocating screw rod (33).

Images