Plane oil spraying and silk-screen printing device for injection-molded part

Abstract

The utility model belongs to the technical field of silk-screen printing equipment, particularly relates to a plane oil spraying silk-screen printing device for an injection molded part, and provides the following scheme aiming at the problems that the top end of the injection molded part is in contact with a silk plate in the existing process of taking and placing the injection molded part, the printing effect is influenced, the front and back positions cannot be positioned in the placing process, and the printing positions are not uniform. The silk-screen printing device comprises a workbench, a vertical plate and a silk-screen part arranged on one side of the vertical plate, a sliding table used for bearing an injection molding part is slidably arranged at the top of the workbench in the width direction, and two sets of first limiting blocks used for positioning the injection molding part in the front-back direction are adjustably arranged at the top of the sliding table; according to the utility model, through the combination of the sliding table and the adjustable limiting block, the precise positioning of the injection-molded part in the processing process is realized, the precision of oil injection and screen printing is effectively improved, the silk plate on the upper surface cannot be touched in the feeding and discharging process, and meanwhile, the clamping plate can flexibly adapt to the injection-molded parts with different sizes through the design of the adjusting mechanism, so that the production efficiency is improved. And the operation is simple.

Description

Technical Field

[0001] This utility model relates to the field of screen printing equipment technology, and in particular to a flat spray screen printing device for injection molded parts. Background Technology

[0002] Injection molded parts, also known as injection-molded parts, are plastic products mainly made of materials such as polyethylene (PE) and polypropylene (PP) with the addition of various organic solvents. Theoretically, all plastic products can be manufactured using injection molding. After processing, markings need to be printed on the surface using a spray painting or screen printing device for subsequent identification.

[0003] A search revealed that utility model CN220031444U discloses a device for spray painting and screen printing on the surface of injection molded parts. However, this device has the following drawbacks during use:

[0004] During the process of picking up and placing injection molded parts, the top of the injection molded parts will come into contact with the screen, affecting the printing effect. Furthermore, the front and back positions cannot be positioned during placement, resulting in inconsistent printing positions. Utility Model Content

[0005] The purpose of this invention is to solve the shortcomings of the prior art, such as the top of the injection molded part coming into contact with the screen during the process of picking up and placing the injection molded part, which affects the printing effect, and the inability to position the front and back during the placement process, resulting in inconsistent printing positions. Therefore, a planar spray screen printing device for injection molded parts is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A planar spray screen printing device for injection molded parts includes a worktable and a vertical plate, as well as a screen printing component disposed on one side of the vertical plate. The top of the worktable is slidably provided with a sliding table for supporting the injection molded parts along the width direction. The top of the sliding table is adjustablely provided with two sets of first limiting blocks for positioning the injection molded parts in the front-back direction.

[0008] One side of the vertical plate is connected by an adjustment mechanism to two clamping plates for positioning the injection molded part in the left and right directions. One end of the clamping plate is provided with an arc-shaped part for guiding the injection molded part.

[0009] The top of the worktable is provided with a limiting component for limiting the sliding table.

[0010] In one possible design, the adjustment mechanism includes two sliding frames slidably disposed on one side of the vertical plate. A guide rod is fixedly disposed inside the sliding frame. A sliding block is slidably sleeved on the outer wall of the guide rod. A spring is sleeved on the outer wall of the guide rod. The two ends of the spring are fixedly connected to one side of the inner wall of the sliding frame and one side of the sliding block, respectively. A clamping plate is fixedly disposed on one side of the sliding block. The two sliding frames are connected by a connector.

[0011] In one possible design, the connector includes a gear rotatably mounted on one side of a vertical plate, and two racks slidably mounted on one side of the vertical plate that mesh with the gear. One rack is fixedly mounted on the top of a corresponding sliding frame, and a fixing strip is fixedly mounted on the top of the other sliding frame. The other rack is fixedly connected to the fixing strip.

[0012] In one possible design, one side of the sliding frame is fixedly provided with an extension plate, one side of the extension plate is provided with a bolt, and one side of the vertical plate is provided with a plurality of threaded holes adapted to the bolt.

[0013] In one possible design, at least two pins are fixedly provided at the bottom of the first limiting block, and multiple sets of insertion holes for insertion into the pins are provided at the top of the sliding table.

[0014] In one possible design, a support leg for supporting the sliding table is fixedly provided on one side of the bottom, and two rollers are fixedly provided on the bottom of the support leg.

[0015] In one possible design, the limiting element includes two grooves formed at the top of the worktable, and a second limiting block located within the grooves is fixedly provided at the bottom of the sliding table.

[0016] Beneficial effects:

[0017] In this utility model, the injection molding part planar spraying and screen printing device is provided on the worktable. By setting a sliding table on the worktable and adjusting two sets of first limit blocks on the sliding table, as well as a clamping plate for positioning the injection molding part in the left and right directions, the device achieves precise positioning of the injection molding part in the front-back and left-right directions. This not only improves the accuracy of spraying and screen printing, but also greatly reduces the scrap rate caused by inaccurate positioning, thereby improving the overall production efficiency and product quality. In addition, the top of the injection molding part will not touch the screen plate during the loading and unloading process.

[0018] In this utility model, the flat spraying and screen printing device for injection molded parts utilizes a combination of sliding frame, guide rod, sliding block and spring, which allows the clamping plate to be easily adjusted according to the size of the injection molded part, and the elasticity of the spring ensures the stable clamping of the clamping plate. At the same time, through the connection of gear and rack, the two clamping plates can move synchronously, improving the adjustment efficiency.

[0019] In this invention, the combination of a sliding table and an adjustable limiting block enables precise positioning of the injection molded parts during the processing, effectively improving the accuracy of spray painting and screen printing. Furthermore, it prevents contact with the upper screen plate during loading and unloading. At the same time, the design of the adjustment mechanism allows the clamping plate to flexibly adapt to injection molded parts of different sizes, and the operation is simple. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of a planar spray painting and screen printing device for injection molded parts proposed in this utility model;

[0021] Figure 2 This is a three-dimensional structural diagram of a planar spray painting and screen printing device for injection molded parts, as proposed in this utility model.

[0022] Figure 3 This is a schematic diagram of the clamping plate mounting structure of a planar spray screen printing device for injection molded parts proposed in this utility model;

[0023] Figure 4 This is a schematic diagram of the installation structure of the first limiting block and the sliding table of a planar spray screen printing device for injection molded parts proposed in this utility model.

[0024] In the diagram: 1. Workbench; 2. Sliding table; 3. Clamping plate; 4. First limiting block; 5. Support leg; 6. Roller; 7. Groove; 8. Second limiting block; 9. Sliding frame; 10. Guide rod; 11. Sliding block; 12. Spring; 13. Extension plate; 14. Bolt; 15. Gear; 16. Rack; 17. Fixing strip; 18. Arc-shaped part; 19. Insertion hole; 20. Pin; 21. Vertical plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1

[0027] Reference Figures 1-4 A spray screen printing device includes: a worktable 1, with a sliding table 2 slidably mounted on the top of the worktable along its width direction. The sliding table 2 is used to support the injection molded part to be processed and can slide freely along the width direction of the worktable to adjust the position of the injection molded part. In order to limit the sliding table 2 and prevent it from moving excessively during sliding, the top of the worktable 1 is provided with two grooves 7, and the bottom of the sliding table 2 is fixedly provided with a second limiting block 8 located in the grooves 7. When the sliding table 2 slides to a designated position, the second limiting block 8 will abut against the groove 7 to limit the sliding table.

[0028] At the top of the sliding table 2, there are two adjustable sets of first limit blocks 4 for positioning the injection molded part in the front and rear directions.

[0029] On one side of the vertical plate 21 of the device, two clamping plates 3 for positioning the injection molded part in the left and right directions are connected by an adjusting mechanism. The adjusting mechanism includes two sliding frames 9 slidably disposed on one side of the vertical plate 21. A guide rod 10 is fixedly disposed inside the sliding frame 9, and a sliding block 11 is slidably sleeved on the outer wall of the guide rod 10. A spring 12 is also sleeved on the outer wall of the guide rod 10, and the two ends of the spring 12 are fixedly connected to one side of the inner wall of the sliding frame 9 and one side of the sliding block 11, respectively. The force of the spring 12 can drive the clamping plate 3 to move and clamp the injection molded part, and one end of the clamping plate 3 is provided with an arc-shaped part 18 for guiding the injection molded part, making it easier for it to enter between the clamping plates 3 and be positioned. The vertical plate 21 also has a screen printing component on one side, which is the same as that used in patent document CN220031444U. (It includes a placement groove at the top of the vertical plate, with an ink tank inside the placement groove; two sliding grooves on one side of the vertical plate, each with a bidirectional threaded rod I inside; sliders threadedly connected to the outside of the two bidirectional threaded rods I; a common connecting frame fixedly installed on one side of the two sliders; an installation groove on one side of the connecting frame, with a bidirectional threaded rod II rotatably installed above the inside of the installation groove; a drive block threadedly connected to the outside of the bidirectional threaded rod II; a connecting frame fixedly installed on one side of the drive block; a connecting block fixedly installed inside the connecting frame; two connecting rods fixedly installed at the bottom of the connecting frame; a common scraper fixedly installed at one end of the two connecting rods; and the top of the connecting block...) A rigid tube is installed, with one end extending through and sealingly connected to an oil reservoir at the bottom of the connecting frame. An ink nozzle is sealed to the bottom of the oil reservoir. An oil outlet pipe is sealed to the other end of the rigid tube and sealed to the ink tank. Two longitudinally distributed support rods are fixedly installed in a mounting groove on one side of the connecting frame, below the second bidirectional threaded rod. L-shaped brackets are slidably fitted onto the outer ends of both support rods. Each L-shaped bracket has a threaded rod at its top, and nuts are fixedly installed at the top of each of the four rods. Pressure plates are rotatably installed at the other ends of each of the four rods. Connecting plates are located inside the sliding grooves of the two L-shaped brackets, with wire mesh on the inner ring of the connecting plates. A motor is fixedly installed on one side of the connecting frame, with one end of the motor's output shaft passing through and rotating along one side of the connecting frame and fixedly connected to the second bidirectional threaded rod.

[0030] To synchronize the positions of the two clamping plates 3, the two sliding frames 9 are connected by a connector. The connector includes a gear 15 rotatably mounted on one side of the vertical plate 21, and two racks 16 slidably mounted on one side of the vertical plate 21, meshing with the gear 15. One rack 16 is fixedly mounted on the top of the corresponding sliding frame 9, and a fixing strip 17 is fixedly mounted on the top of the other sliding frame 9. The other rack 16 is fixedly connected to the fixing strip 17. When one sliding frame 9 is pushed to move, the rack 16 drives the gear 15 to rotate. The rotation of the gear 15 drives the other rack 16 to move, so that the two racks 16 move synchronously, thereby driving the two sliding frames 9 and the clamping plates 3 to move synchronously, achieving precise positioning of the injection molded part in the left and right directions.

[0031] To fix the position of gear 15 and prevent it from rotating during printing, an extension plate 13 is fixed to one side of one of the sliding frames 9. A bolt 14 passes through one side of the extension plate 13, and multiple threaded holes that match the bolt 14 are opened on one side of the vertical plate 21. After the connecting frame 9 is adjusted to the appropriate position, it can be fixed to the vertical plate 21 by tightening the bolt 14.

[0032] This application can be used in the field of screen printing equipment, or in other fields applicable to this application.

[0033] Example 2

[0034] refer to Figures 1-4 An improvement upon Embodiment 1: A planar spray screen printing device for injection molded parts, applied in the field of screen printing equipment, wherein at least two pins 20 are fixedly provided at the bottom of the first limiting block 4, and multiple sets of insertion holes 19 adapted to the pins 20 are provided on the top of the sliding table 2. By inserting the pins 20 into different insertion holes 19, the position of the first limiting block 4 on the sliding table 2 can be adjusted, thereby achieving precise positioning of the injection molded part in the front-back direction.

[0035] To improve the stability of the sliding table 2, a support leg 5 is fixedly installed on the bottom side of the sliding table 2 for supporting the sliding table 2. Two rollers 6 are fixedly installed at the bottom of the support leg 5. The rollers 6 can roll on the ground, making it convenient to move the entire sliding table 2 and the injection molded parts on the worktable.

[0036] In this application, when in use, first pull the sliding table 2 outward, then place the injection molded part on the sliding table 2, and adjust the position of the first limit block 4 according to the printing position of the injection molded part;

[0037] Then adjust the position of the two clamping plates 3. First, tighten the bolt 14 to disengage the bolt 14 from the corresponding threaded hole. Then push the sliding frame 9 on one side to move. The movement of the sliding frame 9 can drive the clamping plate 3 to move. During the movement of the sliding frame 9, it can also drive the sliding frame 9 on the other side to move in the opposite direction through the rack 16 and gear 15, so that the position of the two clamping plates 3 can be adjusted at the same time. After the adjustment is completed, screw the bolt 14 into the corresponding threaded hole.

[0038] After adjustment, push the sliding table 2 to move on the worktable 1. During the movement, it can drive the injection molded part to move closer to the screen. When the injection molded part contacts the two arc-shaped parts 18, it can push the injection molded part to move closer to the first limiting block 4 on the outside through the arc-shaped parts 18 until the injection molded part abuts against the first limiting block 4. Continue to push the sliding table 2 to move. It can move outward through the injection molded part abutting against the two arc-shaped parts 18 and drive the sliding block 11 to move outward. At the same time, the spring 12 is compressed. At the same time, the elastic force of the spring 12 can drive the two clamping plates 3 to clamp the injection molded part. Then, start the screen printing component on one side of the sliding table 2 to print.

[0039] After printing is completed, the sliding table 2 is pulled outward. During the movement, the clamping force of the clamping plate 3 can be used to drive the injection molded part closer to the first limiting block 4 on the inside. When the first limiting block 4 on the inside comes into contact with the injection molded part, the movement continues and the injection molded part can be pulled out from the two clamping plates 3.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A planar spray screen printing device for injection molded parts, comprising a worktable (1) and a vertical plate (21) and a screen printing component disposed on one side of the vertical plate (21), characterized in that, The top of the worktable (1) is provided with a sliding table (2) for carrying the injection molded part in the width direction. The top of the sliding table (2) is provided with two sets of first limiting blocks (4) for positioning the injection molded part in the front and rear directions. One side of the vertical plate (21) is connected by an adjustment mechanism to two clamping plates (3) for positioning the injection molded part in the left and right directions. One end of the clamping plate (3) is provided with an arc-shaped part (18) for guiding the injection molded part. The top of the worktable (1) is provided with a limiting member for limiting the sliding table (2).

2. The planar spray painting and screen printing device for injection molded parts according to claim 1, characterized in that, The adjustment mechanism includes two sliding frames (9) slidably disposed on one side of the vertical plate (21). A guide rod (10) is fixedly disposed inside the sliding frame (9). A sliding block (11) is slidably sleeved on the outer wall of the guide rod (10). A spring (12) is sleeved on the outer wall of the guide rod (10). The two ends of the spring (12) are fixedly connected to one side of the inner wall of the sliding frame (9) and one side of the sliding block (11), respectively. The clamping plate (3) is fixedly disposed on one side of the sliding block (11). The two sliding frames (9) are connected by a connector.

3. The planar spray painting and screen printing device for injection molded parts according to claim 2, characterized in that, The connector includes a gear (15) rotatably mounted on one side of the vertical plate (21). Two racks (16) meshing with the gear (15) are slidably mounted on one side of the vertical plate (21). One rack (16) is fixedly mounted on the top of the corresponding sliding frame (9). A fixing strip (17) is fixedly mounted on the top of the other sliding frame (9). The other rack (16) is fixedly connected to the fixing strip (17).

4. The planar spray painting and screen printing device for injection molded parts according to claim 2, characterized in that, One of the sliding frames (9) is fixedly provided with an extension plate (13) on one side, and a bolt (14) is provided through one side of the extension plate (13). The vertical plate (21) is provided with a plurality of threaded holes that are compatible with the bolt (14) on one side.

5. A planar spray painting and screen printing device for injection molded parts according to any one of claims 1-4, characterized in that, The bottom of the first limiting block (4) is fixedly provided with at least two pins (20), and the top of the sliding table (2) is provided with multiple sets of insertion holes (19) for inserting into the pins (20).

6. The planar spray painting and screen printing device for injection molded parts according to claim 5, characterized in that, The bottom side of the sliding table (2) is fixedly provided with a support leg (5) for supporting the sliding table (2), and the bottom of the support leg (5) is fixedly provided with two rollers (6).

7. The planar spray painting and screen printing device for injection molded parts according to claim 1, characterized in that, The limiting component includes two grooves (7) opened at the top of the worktable (1), and a second limiting block (8) located in the grooves (7) is fixedly provided at the bottom of the sliding table (2).

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