A screen printing device

Abstract

The utility model relates to a silk screen printing technical field discloses a silk screen printing device, including base, moving plate and moving block, the upper end of base is provided with the limiting mechanism, the limiting mechanism includes two clamping plates and bidirectional screw rod, both sides of bidirectional screw rod stem outer wall all are connected with the clamping plate threadedly, the front end and rear end of base upper end all are set up to have the moving groove, the inner wall of both sides of moving groove all are fixedly connected with the slide rod, the outer wall of slide rod stem all are connected with the clamping plate slidingly, the lower end of moving plate is fixedly connected with the mounting panel, the inside of mounting panel is provided with the dismounting mechanism, in the utility model, through the bidirectional screw rod of limiting mechanism and clamping plate threadedly connected, cooperate with the sliding connection of slide rod and clamping plate, be convenient for the restriction of the printed matter, and through the reset spring of dismounting mechanism acts on the clamping block and is connected with the card slot snap connection, cooperate with the sliding connection of screw rod and clamping block, be convenient for the dismounting of silk screen plate.

Description

Technical Field

[0001] This utility model relates to the field of screen printing technology, and in particular to a screen printing device. Background Technology

[0002] Screen printing equipment, also known as screen printing apparatus, is a device that uses a screen to transfer ink or pigment into the shape of text, patterns, logos, etc., onto the surface of substrates such as plastic, metal, and glass. It is widely used in industries such as electronics, packaging, toys, automobiles, home appliances, and household goods.

[0003] However, most existing screen printing devices on the market are not convenient for operators to limit the position of the printed object, which makes the printed object easy to shift during the printing process, affecting the printing quality. In addition, the screen plates on most existing screen printing devices on the market are not easy to disassemble and assemble, which increases the complexity of the operation of operators to replace or clean the screen plates.

[0004] Therefore, those skilled in the art have provided a screen printing apparatus to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a screen printing device. The device uses a bidirectional threaded rod in the limiting mechanism to be threadedly connected to the clamping plate, and a sliding rod to be slidably connected to the clamping plate, which facilitates the restriction of the printed material. The device also uses a reset spring in the disassembly and assembly mechanism to act on the card block and engage with the card slot, and a screw to be slidably connected to the card block, which facilitates the disassembly and assembly of the screen plate.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A screen printing device includes a base, a movable plate, and a movable block. The upper end of the base is provided with a limiting mechanism, which includes a bidirectional threaded rod and two clamping plates. Both sides of the outer wall of the bidirectional threaded rod are threadedly connected to the clamping plates. The front end and rear end of the upper end of the base are provided with movable grooves. The inner walls of both sides of the movable grooves are fixedly connected with sliding rods. The outer walls of the sliding rods are slidably connected to the clamping plates. The lower end of the movable plate is fixedly connected with a mounting plate. The mounting plate is internally equipped with a disassembly and assembly mechanism, which includes a wire mesh plate, two return springs, and two screws. The inner walls on both sides of the mounting plate are slidably connected to the wire mesh plate. The middle of the outer walls on both sides of the wire mesh plate is provided with a slot. The middle of the middle of the inner sides of the mounting plate is provided with a sliding groove. The side of the return spring near the center of the wire mesh plate is fixedly connected to a locking block. The side of the locking block near the center of the wire mesh plate passes through the mounting plate and is engaged with the slot. The outer wall of the screw is threaded to the mounting plate. The side of the screw near the center of the wire mesh plate is slidably connected to the locking block. The above technical solution involves a bidirectional threaded rod connected to a clamping plate, which, in conjunction with a sliding rod, guides the clamping plate. This allows the rotating bidirectional threaded rod to move the clamping plate and clamp the printed material, restricting its movement. Furthermore, a return spring acts on the locking block, keeping it engaged with the slot. By unscrewing the screw, the locking block retracts into the sliding groove, releasing the engagement and facilitating the installation and removal of the screen printing plate.

[0007] Furthermore, a base frame is fixedly connected to the lower end of the base, and a PLC control panel is provided in the middle of the front outer wall of the base frame; The above technical solution provides stable support for the entire device by fixing the base frame at the lower end of the platform, preventing shaking during operation and affecting the normal operation of the device. The PLC control panel on the base frame allows the staff to control the operating status of the device.

[0008] Furthermore, the middle part of the outer wall of the bidirectional threaded rod is rotatably connected to the base, and both sides of the bidirectional threaded rod pass through the base and are fixedly connected with handwheels. The lower ends of the clamps are slidably connected to the moving groove. The above technical solution allows workers to easily rotate the bidirectional threaded rod by using a handwheel fixedly connected to it, and enables the clamping plate to move along the moving groove by utilizing the threaded connection between the bidirectional threaded rod and the clamping plate, thereby changing the distance between the two clamping plates.

[0009] Furthermore, guide rods are fixedly connected to the rear ends of both sides of the upper end of the base, and the outer walls of the guide rods are slidably connected to the movable plate. An electric telescopic rod is provided at the rear end of the middle part of the upper end of the base, and the output shaft of the electric telescopic rod is fixedly connected to the movable plate. The above technical solution provides guidance for the up-and-down movement of the mobile plate by fixing a guide rod at the top of the base and sliding it with the mobile plate. The electric telescopic rod installed on the base can drive the mobile plate to move up and down along the guide rod, thereby driving the entire mounting plate and the wire mesh plate on it to move up and down, changing the height.

[0010] Furthermore, the inner wall of the slide groove on the side away from the center of the wire mesh plate is fixedly connected to the return spring, the locking blocks slide inside the slide groove, and the screw is fixedly connected to the side away from the center of the wire mesh plate with a knob. Through the above technical solution, the return spring fixedly connected to the inner wall of the slide groove acts on the locking block, so that the locking block can be kept in the state of extending out of the slide groove. The locking block is provided with a slope, which can force the locking block to retract into the slide groove when the wire mesh plate is slid into the mounting plate. When it corresponds with the locking groove, it extends to lock. In addition, the knob fixedly connected to the screw makes it convenient for the operator to drive the screw to rotate, which in turn allows the screw to drive the locking block to retract into the slide groove.

[0011] Furthermore, a guide rod is fixedly connected to the middle of the outer wall of the front end of the movable plate, and the outer wall of the guide rod body is slidably connected to the movable block. A first cylinder is provided on the outer wall of the other side of the movable block, and the output shaft of the first cylinder passes through the movable block and is fixedly connected to the movable plate. Through the above technical solution, the first cylinder installed on the moving block is fixedly connected to the moving plate by its output shaft, so that the moving block will be driven to move along the guide rod under the action of reaction force, thereby driving the scraper to move back and forth.

[0012] Furthermore, a second cylinder is provided at the front end of both sides of the upper end of the movable block, and a connecting plate is fixedly connected to the output shaft of the second cylinder. A movable rod is fixedly connected to the front end and the rear end of the lower end of the connecting plate. The outer wall of the movable rod is slidably connected to the movable block, and a scraper is fixedly connected to the lower end of the movable rod. Through the above technical solution, two second cylinders set on the moving block can drive the movable rod through the connecting plate to move up and down, thereby driving the squeegee to press down on the screen or move up and away. The two squeegees press down in a staggered manner. One is the ink squeegee, which is used to scrape the ink from one end of the screen to the other end during the printing stroke. The pressure forces the ink through the mesh of the image area and transfer it to the substrate. The other is the ink feeding plate, which is used to evenly redistribute the remaining ink to the image area of ​​the screen when the ink squeegee returns, preparing for the next printing and preventing the ink from drying and clogging the mesh.

[0013] This utility model has the following beneficial effects: 1. The screen printing device proposed in this utility model is connected to the clamping plate by a bidirectional threaded rod in the limiting mechanism. The sliding rod provides guidance for the clamping plate, so that the rotating bidirectional threaded rod can drive the clamping plate to move and clamp the printed object, restricting its movement. This makes it less likely for the printed object to be displaced during the printing process, thus improving the printing quality.

[0014] 2. The screen printing device proposed in this utility model uses a reset spring in the disassembly and assembly mechanism to act on the card block, so that the card block is kept in the card slot engagement state. When the screw is unscrewed, the card block is driven to retract into the slide groove, which releases the engagement state with the card slot, thereby facilitating the disassembly and assembly of the screen plate and reducing the complexity of the operation of the operator to replace or clean the screen plate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of a screen printing device proposed in this utility model; Figure 2 This is an exploded view of a screen printing device proposed in this utility model; Figure 3This is a cross-sectional view of a screen printing device proposed in this utility model; Figure 4 This is a side sectional view of a screen printing device proposed in this utility model; Figure 5 for Figure 3 Enlarged view of point A in the middle; Figure 6 for Figure 3 Enlarged view of point B in the middle.

[0016] Explanation of reference numerals in the attached figures: 1. Base; 2. Base frame; 3. PLC control panel; 4. Limiting mechanism; 401. Bidirectional threaded rod; 402. Clamping plate; 403. Handwheel; 404. Moving groove; 405. Slide rod; 5. Guide rod; 6. Moving plate; 7. Mounting plate; 8. Disassembly and assembly mechanism; 801. Wire mesh plate; 802. Slot; 803. Slide groove; 804. Return spring; 805. Locking block; 806. Screw; 807. Knob; 9. Electric telescopic rod; 10. Guide rod; 11. Moving block; 12. First cylinder; 13. Second cylinder; 14. Connecting plate; 15. Movable rod; 16. Scraper. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Reference Figure 1-6 This utility model provides a specific implementation method: A screen printing device includes a base 1, a movable plate 6, and a movable block 11. A limiting mechanism 4 is provided at the upper end of the base 1. The limiting mechanism 4 includes a bidirectional threaded rod 401 and two clamping plates 402. Both sides of the outer wall of the bidirectional threaded rod 401 are threadedly connected to the clamping plates 402. Movable grooves 404 are provided at the front and rear ends of the upper end of the base 1. Slide rods 405 are fixedly connected to the inner walls of both sides of the movable grooves 404. The outer walls of the slide rods 405 are slidably connected to the clamping plates 402. An mounting plate 7 is fixedly connected to the lower end of the movable plate 6. The mounting plate 7 is internally equipped with a disassembly and assembly mechanism 8, which includes a wire mesh plate 801, two return springs 804, and two screws 806. The inner walls on both sides of the mounting plate 7 are slidably connected to the wire mesh plate 801. The middle of the outer walls on both sides of the wire mesh plate 801 is provided with a slot 802. The middle of the middle of both sides of the inner side of the mounting plate 7 is provided with a sliding groove 803. The side of the return spring 804 near the center of the wire mesh plate 801 is fixedly connected with a locking block 805. The side of the locking block 805 near the center of the wire mesh plate 801 passes through the mounting plate 7 and is engaged with the slot 802. The outer wall of the screw 806 is threadedly connected to the mounting plate 7. The side of the screw 806 near the center of the wire mesh plate 801 is slidably connected to the locking block 805.

[0019] The bidirectional threaded rod 401 in the limiting mechanism 4 is threadedly connected to the clamping plate 402, and the sliding rod 405 provides guidance for the clamping plate 402. The rotating bidirectional threaded rod 401 can drive the clamping plate 402 to move and clamp the printed material, restricting its movement. This makes it less likely for the printed material to shift during the printing process, thus improving the printing quality. In addition, the reset spring 804 in the disassembly and assembly mechanism 8 acts on the locking block 805, keeping the locking block 805 in the locking state of the locking slot 802. When the screw 806 is unscrewed, the locking block 805 is driven to retract into the sliding groove 803, thus releasing the locking state of the locking slot 802. This facilitates the disassembly and assembly of the screen printing plate 801 and reduces the complexity of the operation of replacing or cleaning the screen printing plate 801.

[0020] A base frame 2 is fixedly connected to the lower end of the base 1. A PLC control panel 3 is installed in the middle of the outer wall of the front end of the base frame 2. The base frame 2, which is fixedly connected to the lower end of the base 1, can provide stable support for the entire device and prevent shaking during operation, which would affect the normal operation of the device. The PLC control panel 3 on the base frame 2 allows the operator to control the operating status of the device. The middle of the outer wall of the bidirectional threaded rod 401 is rotatably connected to the base 1. Both sides of the bidirectional threaded rod 401 pass through the base 1 and are fixedly connected to handwheels 403. The lower ends of the clamping plates 402 are slidably connected to the moving groove 404. The handwheels 403 fixedly connected to the bidirectional threaded rod 401 allow the operator to rotate the bidirectional threaded rod 401. The threaded connection between the bidirectional threaded rod 401 and the clamping plates 402 allows the clamping plates 402 to move along the moving groove 404, changing the distance between the two clamping plates 402.Guide rods 5 are fixedly connected to the rear ends of both sides of the upper end of the base 1. The outer walls of the guide rods 5 are slidably connected to the movable plate 6. An electric telescopic rod 9 is provided at the rear end of the middle of the upper end of the base 1. The output shaft of the electric telescopic rod 9 is fixedly connected to the movable plate 6. By fixing the guide rods 5 to the upper end of the base 1 and allowing them to slide to the movable plate 6, the upper and lower movement of the movable plate 6 is guided. The electric telescopic rod 9 on the base 1 can drive the movable plate 6 to move up and down along the guide rods 5, thereby driving the entire mounting plate 7 and the wire mesh plate 801 on it to move up and down, changing the height. The inner wall of the slide groove 803 on the side away from the center of the wire mesh plate 801 is fixedly connected to the return spring 804. The locking blocks 805 are all in the slide groove 803. The internal sliding mechanism of the 03 screw has a knob 807 fixedly connected to one side of the screw 806 away from the center of the wire mesh plate 801. A return spring 804 fixedly connected to the inner wall of the slide groove 803 acts on the locking block 805, allowing the locking block 805 to remain extended out of the slide groove 803. The locking block 805 has an inclined surface, which forces it to retract into the slide groove 803 when the wire mesh plate 801 is slid into the mounting plate 7. When it aligns with the locking slot 802, it extends to engage. Furthermore, the knob 807 fixedly connected to the screw 806 allows the operator to rotate the screw 806, which in turn causes the locking block 805 to retract into the slide groove 803. The middle of the outer wall of the front end of the moving plate 6... A guide rod 10 is fixedly connected, and the outer wall of the guide rod 10 is slidably connected to the moving block 11. A first cylinder 12 is provided on the outer wall of the other side of the moving block 11. The output shaft of the first cylinder 12 passes through the moving block 11 and is fixedly connected to the moving plate 6. Through the first cylinder 12 provided on the moving block 11, and by using its output shaft to be fixedly connected to the moving plate 6, the moving block 11 will be driven to move along the guide rod 10 under the action of the reaction force, causing the scraper 16 to move back and forth. A second cylinder 13 is provided at the front end of both sides of the upper end of the moving block 11. The output shaft of the second cylinder 13 is fixedly connected to the connecting plate 14. The front end and rear end of the lower end of the connecting plate 14 are fixedly connected to the movable rod 15. The outer walls are all slidably connected to the moving block 11, and the lower end of the movable rod 15 is fixedly connected to the scraper 16. The two second cylinders 13 set on the moving block 11 can drive the movable rod 15 to move up and down through the connecting plate 14, thereby driving the scraper 16 to press down on the screen on the screen plate 801 or move up away. The two scrapers 16 press down in a staggered manner. One is a scraper plate, which is used to scrape the ink from one end of the screen plate to the other end during the printing stroke. The pressure makes the ink pass through the mesh of the image area and transfer it to the substrate. The other is an ink feeding plate, which is used to evenly redistribute the remaining ink to the image area of ​​the screen plate 801 when the scraper plate returns, in preparation for the next printing and to prevent the ink from drying and clogging the mesh.

[0021] Working principle: When using this screen printing device, the operator first slides the screen plate 801 onto the mounting plate 7. When the slot 802 aligns with the locking block 805, the locking block 805 remains engaged with the slot 802 under the action of the return spring 804, fixing the screen plate 801. Then, the operator places the work to be printed on the base 1. Next, the operator uses the handwheel 403 to rotate the bidirectional threaded rod 401, causing the clamping plate 402 to move, clamping the work and restricting its movement. Then, the operator pours ink or pigment onto the screen plate 801. Using the PLC control panel 3, the electric telescopic rod 9 is controlled to move the moving plate 6 downward, so that the screen on the screen plate 801 comes into contact with the object to be printed. Then, the second cylinder 13 and the first cylinder 12 are controlled to move the scraper 16 downward, while the moving block 11 moves the scraper 16 horizontally, transferring the pattern onto the object to be printed. Finally, the operator can use the knob 807 to turn the screw 806, which will cause the locking block 805 to retract into the slide groove 803, releasing the locking state of the slot 802. After that, the operator can remove the screen plate 801 from the mounting plate 7 for replacement or cleaning.

[0022] The following points should be noted in this article: 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in a general design.

[0023] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A screen printing apparatus, comprising a base (1), a movable plate (6), and a movable block (11), characterized in that: The upper end of the base (1) is provided with a limiting mechanism (4). The limiting mechanism (4) includes a bidirectional threaded rod (401) and two clamping plates (402). Both sides of the outer wall of the bidirectional threaded rod (401) are threadedly connected to the clamping plates (402). The front end and rear end of the upper end of the base (1) are provided with moving grooves (404). The inner walls of both sides of the moving grooves (404) are fixedly connected with sliding rods (405). The outer walls of the sliding rods (405) are slidably connected to the clamping plates (402). The lower end of the moving plate (6) is fixedly connected with an installation plate (7). The mounting plate (7) is provided with a disassembly and assembly mechanism (8). The disassembly and assembly mechanism (8) includes a wire mesh plate (801), two return springs (804) and two screws (806). The inner walls on both sides of the mounting plate (7) are slidably connected to the wire mesh plate (801). The middle of the outer walls on both sides of the wire mesh plate (801) is provided with a slot (802). The middle of the inner sides of the mounting plate (7) is provided with a sliding groove (803). The side of the return spring (804) near the center of the wire mesh plate (801) is fixedly connected with a locking block (805). The side of the locking block (805) near the center of the wire mesh plate (801) passes through the mounting plate (7) and is locked with the slot (802). The outer wall of the screw (806) is threadedly connected to the mounting plate (7). The side of the screw (806) near the center of the wire mesh plate (801) is slidably connected with the locking block (805).

2. The screen printing device according to claim 1, characterized in that: The lower end of the base (1) is fixedly connected to the base frame (2), and the middle of the front outer wall of the base frame (2) is provided with a PLC control panel (3).

3. The screen printing device according to claim 1, characterized in that: The middle part of the outer wall of the bidirectional threaded rod (401) is rotatably connected to the base (1). Both sides of the bidirectional threaded rod (401) pass through the base (1) and are fixedly connected with handwheels (403). The lower ends of the clamping plates (402) are slidably connected to the moving grooves (404).

4. The screen printing device according to claim 1, characterized in that: Guide rods (5) are fixedly connected to the rear ends of both sides of the upper end of the base (1). The outer walls of the guide rods (5) are slidably connected to the moving plate (6). An electric telescopic rod (9) is provided at the rear end of the middle part of the upper end of the base (1). The output shaft of the electric telescopic rod (9) is fixedly connected to the moving plate (6).

5. A screen printing device according to claim 1, characterized in that: The inner wall of the slide groove (803) on the side away from the center of the wire mesh plate (801) is fixedly connected to the return spring (804), the locking blocks (805) slide inside the slide groove (803), and the screw (806) on the side away from the center of the wire mesh plate (801) is fixedly connected to the knob (807).

6. The screen printing apparatus according to claim 1, characterized in that: A guide rod (10) is fixedly connected to the middle of the outer wall of the front end of the movable plate (6). The outer wall of the guide rod (10) is slidably connected to the movable block (11). A first cylinder (12) is provided on the outer wall of the other side of the movable block (11). The output shaft of the first cylinder (12) passes through the movable block (11) and is fixedly connected to the movable plate (6).

7. A screen printing device according to claim 1, characterized in that: The upper sides of the moving block (11) are provided with a second cylinder (13) at the front end. The output shaft of the second cylinder (13) is fixedly connected to a connecting plate (14). The front end and rear end of the lower end of the connecting plate (14) are fixedly connected to a movable rod (15). The outer wall of the movable rod (15) is slidably connected to the moving block (11). The lower end of the movable rod (15) is fixedly connected to a scraper (16).

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