Automatic screen printing device

Abstract

The utility model relates to the technical field of part machining, and discloses an automatic screen printing device which comprises a center shaft, the outer portion of the center shaft is rotationally connected with a first connecting plate, the left side of the first connecting plate is fixedly connected with two springs, and the left sides of the two springs are fixedly connected with a second connecting plate. A pawl is fixedly connected to the top of the second connecting plate, a first bearing shaft is rotatably connected to the interior of the workbench, a ratchet wheel is fixedly connected to the exterior of the first bearing shaft, a second connecting block is fixedly connected to the top of the second telescopic rod, and a rotating rod is rotatably connected to the interior of the second connecting block. According to the utility model, the forward and backward pushing of the hydraulic device is converted into the intermittent circular motion of the disc, and part of structures are used for limiting, so that the problem that the processing rhythm cannot be well controlled is solved, a plurality of objects are efficiently processed in the processing process, and the balance of feeding, discharging and processing is kept by designing stations; the problem of low working efficiency is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of parts processing, in particular to an automatic screen printing device. Background Art

[0002] Screen printing is the process of using a screen made of silk screen cloth. The silk screen cloth is stretched on a screen frame and the screen is made using an optical platemaking method. This screen has some patterns and designs hollowed out, and then the ink slurry is squeezed by a scraper to pass through the hollowed-out images, texts, English patterns, etc., and transferred to the ribbon substrate for printing, thus forming images, texts, English patterns, etc. that are the same as the original. This is the general printing formation of screen printing. To achieve the above-mentioned processing purpose, an automatic screen printing device is required.

[0003] At present, some devices cannot control the balance of processing rhythm and speed well during the processing, which may easily cause errors and deviations in the processed objects, increase the processing damage rate, increase the processing cost, and cause low work efficiency due to single-station processing. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides an automatic screen printing device, which aims to improve the problem that some devices cannot control the balance of processing rhythm and speed well during the processing process, which easily causes errors and deviations in the processed objects, resulting in an increase in the processing damage rate and an increase in processing costs.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an automatic screen printing device, comprising a workbench, a hydraulic cylinder 1 is fixedly connected to the front side of the bottom of the workbench, a telescopic rod 1 is fixedly connected to the output end of the hydraulic cylinder 1, a connecting block 1 is fixedly connected to the top of the telescopic rod 1, the inner rotation of the connecting block 1 is connected to the central axis, the outer rotation of the central axis is connected to a connecting plate 1, two springs are fixedly connected to the left side of the connecting block 1, a connecting plate 2 is fixedly connected to the top of the connecting plate 2, a load-bearing shaft 1 is internally connected to the workbench, a ratchet is fixedly connected to the outside of the load-bearing shaft 1, a hydraulic cylinder 2 is fixedly connected to the rear side of the bottom of the workbench, a telescopic rod 2 is fixedly connected to the output end of the hydraulic cylinder 2, a connecting block 2 is fixedly connected to the top of the telescopic rod 2, and a rotating rod is internally connected to the connecting block 2.

[0006] As a further description of the above technical solution:

[0007] The interior of the rotating rod is rotatably connected to the second load-bearing shaft, the exterior of the first load-bearing shaft is fixedly connected to a groove plate, two hydraulic rods are fixedly connected to the left and right sides of the top of the workbench, the adjacent side of the multiple hydraulic rods is fixedly connected to a printing screen, the exteriors of the two hydraulic rods on the same side are fixedly connected to a groove plate, the left and right sides of the two groove plates are fixedly connected to cylinders, the interiors of the two cylinders are fixedly connected to sliding rods, the exteriors of the sliding rods are slidably connected to a sliding table, the bottom of the sliding table is fixedly connected to a brush head, the front and rear sides of the brush head are fixedly connected to sliding blocks, and the sliding blocks are slidably connected to the groove plate.

[0008] As a further description of the above technical solution:

[0009] The top of the load-bearing shaft 1 is fixedly connected with a turntable, the bottom of the turntable is rotatably connected with a plurality of ball bearings, the four bottom corners of the workbench are fixedly connected with support columns, and the top of the turntable is fixedly connected with a plurality of suction cups.

[0010] As a further description of the above technical solution:

[0011] The connecting plate 1 is rotatably connected to the pawl via a shaft, and the connecting plate 1 is rotatably connected to the outside of the load-bearing shaft 1.

[0012] As a further description of the above technical solution:

[0013] The first load-bearing shaft passes through the workbench and is fixedly connected to the bottom of the turntable, and the top of the second load-bearing shaft is fixedly connected to the bottom of the workbench.

[0014] As a further description of the above technical solution:

[0015] The plurality of balls are rotatably connected to the bottom of the turntable, and the plurality of balls are in contact with the bottom of the inner groove of the workbench.

[0016] As a further description of the above technical solution:

[0017] One end of the two springs is fixedly connected to the outside of the first connecting block, and the other end of the two springs is fixedly connected to the outside of the second connecting plate.

[0018] The utility model has the following beneficial effects:

[0019] 1. In the utility model, through the coordinated use of structures such as the ratchet, the pawl, the central axis, and the rotating rod, the device can convert the forward and backward push of the hydraulic device into the intermittent circular motion of the disc during the processing, and use part of the structure for limiting, thereby solving the problem that the balance of the processing rhythm and speed cannot be well controlled, which easily causes errors and deviations in the processed objects, resulting in an increase in the processing damage rate and an increase in the processing cost.

[0020] 2. In the utility model, through the coordinated use of structures such as the slide rod, the slide block, the brush head, and the printing screen, the device can efficiently process multiple objects during the processing process, and the design of the workstation maintains a balance between loading and unloading and processing, solving the problem of low work efficiency caused by single-station processing in some devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A three-dimensional diagram of an automatic screen printing device proposed by the utility model;

[0022] Figure 2 A schematic diagram of the ratchet and pawl structure of an automatic screen printing device proposed by the utility model;

[0023] Figure 3 A schematic diagram of a sliding rod structure of an automatic screen printing device proposed by the utility model;

[0024] Figure 4 The utility model is a cross-sectional view of a turntable of an automatic screen printing device.

[0025] Legend:

[0026] 1. Workbench; 2. Hydraulic cylinder 1; 3. Telescopic rod 1; 4. Connecting block 1; 5. Central axis; 6. Connecting plate 1; 7. Spring; 8. Connecting plate 2; 9. Ratchet; 10. Load-bearing shaft 1; 11. Ratchet; 12. Hydraulic cylinder 2; 13. Telescopic rod 2; 14. Connecting block 2; 15. Rotating rod; 16. Load-bearing shaft 2; 17. Grooved plate; 18. Ball bearing; 19. Turntable; 20. Suction cup; 21. Hydraulic rod; 22. Printing screen; 23. Grooved plate; 24. Cylinder; 25. Sliding rod; 26. Sliding table; 27. Sliding block; 28. Brush head; 29. ​​Support column. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Reference Figure 1-4The utility model provides an embodiment: an automatic screen printing device, including a workbench 1, a hydraulic cylinder 2 is fixedly connected to the front side of the bottom of the workbench 1, and a telescopic rod 3 is fixedly connected to the output end of the hydraulic cylinder 2. First, when the hydraulic cylinder 2 is started, because the output end is connected to the telescopic rod 3, the telescopic rod 3 will be driven to do reciprocating motion, and the top of the telescopic rod 3 is fixedly connected to a connecting block 4, and the inner rotation of the connecting block 4 is connected to a central axis 5. The connecting block 4 and the connecting plate 6 are connected by the central axis 5 and will be pulled back together. The outer rotation of the central axis 5 is connected to a connecting plate 6, and the left side of the connecting block 4 is fixedly connected to two springs 7, and the left side of the two springs 7 is fixedly connected to a connecting plate 2 8, and the top of the connecting plate 2 8 is fixedly connected to a ratchet 9, and the ratchet 9 will be It drives the pawl 9 to move back because of the special structural properties. When moving forward, the pawl 9 is more closely fitted into the groove of the ratchet 11 due to the presence of the spring 7. Due to the characteristics of the structure, the ratchet 11 is intermittently rotated counterclockwise. The internal rotation of the workbench 1 is connected to the load-bearing shaft 10, and the external part of the load-bearing shaft 10 is fixedly connected to the ratchet 11. The bottom rear side of the workbench 1 is fixedly connected to the hydraulic cylinder 2 12. When the hydraulic cylinder 2 12 reciprocates, the load-bearing shaft 2 16 is fixed in the middle, and other structures rotate to form a lever principle. The output end of the hydraulic cylinder 2 12 is fixedly connected to the telescopic rod 2 13, and the top of the telescopic rod 2 13 is fixedly connected to the connecting block 2 14. The internal rotation of the connecting block 2 14 is connected to the rotating rod 15.

[0029] The inside of the rotating rod 15 is rotatably connected to the bearing shaft 2 16, and the outside of the bearing shaft 10 is fixedly connected to the groove plate 17. The telescopic rod 2 13 is connected to one end of the lever, and a protrusion is provided at the other end. The protrusion of the rotating rod 15 is consistent with the groove on the groove plate 17, and can be limited. Two hydraulic rods 21 are fixedly connected to the left and right sides of the top of the workbench 1. The hydraulic rod 21 is lowered once to make the printing screen 22 fit the object. The hydraulic rod 21 is lowered once to make the brush head 28 fit the hydraulic rod 21. The printing screen 22 is fixedly connected to the adjacent side of the multiple hydraulic rods 21, and the same side The outside of the two hydraulic rods 21 is fixedly connected with a groove plate 23, the left and right sides of the two groove plates 23 are fixedly connected with a cylinder 24, the inside of the two cylinders 24 is fixedly connected with a slide rod 25, the outside of the slide rod 25 is slidably connected with a slide table 26, under the operation of the rodless cylinder, the brush head 28 repeatedly screen-prints the object to achieve the processing purpose, the staff on the front and back sides can load and unload the objects, the bottom of the slide table 26 is fixedly connected with a brush head 28, the front and back sides of the brush head 28 are fixedly connected with a sliding block 27, and the sliding block 27 is slidably connected to the groove plate 23.

[0030] A turntable 19 is fixedly connected to the top of the load-bearing shaft 10, and a plurality of ball bearings 18 are rotatably connected to the bottom of the turntable 19. Support columns 29 are fixedly connected to the four corners of the bottom of the workbench 1, and a plurality of suction cups 20 are fixedly connected to the top of the turntable 19 for adsorbing objects.

[0031] The connecting plate 6 is rotatably connected to the pawl 9 through an axis, and the connecting plate 6 is rotatably connected to the outside of the load-bearing shaft 10.

[0032] The first load-bearing shaft 10 passes through the workbench 1 and is fixedly connected to the bottom of the turntable 19 , and the top of the second load-bearing shaft 16 is fixedly connected to the bottom of the workbench 1 .

[0033] A plurality of balls 18 are rotatably connected to the bottom of the turntable 19 , and the plurality of balls 18 are in contact with the bottom of the inner groove of the workbench 1 , so as to reduce friction.

[0034] One end of the two springs 7 is fixedly connected to the outside of the connecting block 1 4 , and the other end of the two springs 7 is fixedly connected to the outside of the connecting plate 2 8 .

[0035] Working principle: First, when the hydraulic cylinder 2 is started, because the output end is connected to the telescopic rod 3, the telescopic rod 3 will be driven to do reciprocating motion. During the pulling back process, the connecting block 4 and the connecting plate 6 will be pulled back together because of the central axis 5, so the pawl 9 will be driven to move back. Due to the special structural properties, the pawl 9 will not be subject to too much resistance when coming back. When moving forward, the existence of the spring 7 makes the pawl 9 fit the groove of the ratchet 11 more closely. Due to the characteristics of the structure, the ratchet 11 will be rotated intermittently in the counterclockwise direction. In this way, the rhythm of the rotation can be controlled by controlling the rhythm of the hydraulic cylinder 2. In the other direction, there is a hydraulic cylinder 2 12. When the hydraulic cylinder 2 12 makes reciprocating motion, the load-bearing shaft 2 16 is fixed in the middle, and the other structures rotate to form a lever principle. The telescopic rod 2 13 is connected to one end of the lever, and a protrusion is provided at the other end. The protrusion of the rotating rod 15 is consistent with the groove on the groove disk 17, and can be limited. Because the groove disk 17 and the ratchet 11 are connected to a load-bearing shaft 10, the above structure realizes rhythmic rotation and limitation. The top of the load-bearing shaft 10 is connected to the turntable 19. Because there are many suction cups 20 on the top of the turntable 19, the suction cups 20 are pneumatic suction cups, which can be connected with other equipment to suck the processed objects. When the suction cups 20 carry the objects to the bottom of the printing screen 22, the hydraulic rod 21 descends once to make the printing screen 22 adhere to the objects. The hydraulic rod 21 descends once to make the brush head 28 adhere to the hydraulic rod 21. Because the brush head 28 is connected to the entire structure through a partial structure, a rodless cylinder is provided. A hole connected to the external air pipe is reserved at the bottom of the cylinder 24. Under the operation of the rodless cylinder, the brush head 28 repeatedly screens the objects to achieve the processing purpose. The staff on the front and back sides can load and unload the objects.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or 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 protection scope of the present invention.

Claims

1. An automatic screen printing device, comprising a workbench (1), characterized in that: The bottom front side of the workbench (1) is fixedly connected to a hydraulic cylinder (2), the output end of the hydraulic cylinder (2) is fixedly connected to a telescopic rod (3), the top of the telescopic rod (3) is fixedly connected to a connecting block (4), the inside of the connecting block (4) is rotatably connected to a central axis (5), the outside of the central axis (5) is rotatably connected to a connecting plate (6), the left side of the connecting block (4) is fixedly connected to two springs (7), the left sides of the two springs (7) are fixedly connected to a connecting plate (8), the connecting A ratchet (9) is fixedly connected to the top of the second connecting plate (8); a load-bearing shaft (10) is rotatably connected to the inside of the workbench (1); a ratchet (11) is fixedly connected to the outside of the load-bearing shaft (10); a hydraulic cylinder (12) is fixedly connected to the rear side of the bottom of the workbench (1); a telescopic rod (13) is fixedly connected to the output end of the hydraulic cylinder (12); a connecting block (14) is fixedly connected to the top of the telescopic rod (13); a rotating rod (15) is rotatably connected to the inside of the connecting block (14).

2. The automatic screen printing device according to claim 1, characterized in that: The interior of the rotating rod (15) is rotatably connected to the second load-bearing shaft (16), the exterior of the first load-bearing shaft (10) is fixedly connected to a groove plate (17), the top left and right sides of the workbench (1) are fixedly connected to two hydraulic rods (21), the adjacent sides of the plurality of hydraulic rods (21) are fixedly connected to a printing screen (22), the exteriors of the two hydraulic rods (21) on the same side are fixedly connected to a groove plate (23), the left and right sides of the two groove plates (23) are fixedly connected to a cylinder (24), the interiors of the two cylinders (24) are fixedly connected to a sliding rod (25), the exteriors of the sliding rods (25) are slidably connected to a sliding table (26), the bottom of the sliding table (26) is fixedly connected to a brush head (28), the front and rear sides of the brush head (28) are fixedly connected to sliding blocks (27), and the sliding blocks (27) are slidably connected to the groove plate (23).

3. The automatic screen printing device according to claim 1, characterized in that: The top of the load-bearing shaft (10) is fixedly connected to a turntable (19), and the bottom of the turntable (19) is rotatably connected to a plurality of ball bearings (18). The four corners of the bottom of the workbench (1) are fixedly connected to support columns (29), and the top of the turntable (19) is fixedly connected to a plurality of suction cups (20).

4. The automatic screen printing device according to claim 1, characterized in that: The connecting plate 1 (6) is rotatably connected to the ratchet pawl (9) via a shaft, and the connecting plate 1 (6) is rotatably connected to the outside of the load-bearing shaft 1 (10).

5. The automatic screen printing device according to claim 2, characterized in that: The first load-bearing shaft (10) passes through the workbench (1) and is fixedly connected to the bottom of the turntable (19), and the top of the second load-bearing shaft (16) is fixedly connected to the bottom of the workbench (1).

6. The automatic screen printing device according to claim 3, characterized in that: The plurality of balls (18) are rotatably connected to the bottom of the turntable (19), and the plurality of balls (18) are in contact with the bottom of the inner groove of the workbench (1).

7. The automatic screen printing device according to claim 2, characterized in that: One end of the two springs (7) is fixedly connected to the outside of the first connecting block (4), and the other end of the two springs (7) is fixedly connected to the outside of the second connecting plate (8).

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