Plastic screen printing machine capable of rapidly replacing mold

Abstract

The utility model provides a plastic screen printing machine capable of quickly replacing a mold, which belongs to the technical field of screen printing machines and comprises a workbench and a mold body, a connecting column is mounted on one side of the upper surface of the workbench, a turntable is arranged at the upper end of the connecting column, and a convenient replacement mechanism is arranged on the upper surface of the turntable. The convenient replacement mechanism comprises mounting frames evenly arranged on the upper surface of the rotary disc, positioning columns penetrate through through holes in the inner walls of the mounting grooves, the cross sections of the positioning columns are matched with the cross sections of the through holes in the inner walls of the mounting grooves, positioning grooves are formed in the positions, corresponding to the positioning columns, of the two side walls of the limiting columns, and the positioning columns are inserted into the positioning grooves. A sliding groove is formed in one inner side wall of the driving cavity, a connecting rod is arranged on one side of the movable plate and slidably arranged in the sliding groove, a connecting plate is arranged at the end of the connecting rod, and a handle is arranged on one side of the surface of the connecting plate. The die can be quickly replaced, the replacement process is simpler and more convenient, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of screen printers, and particularly relates to a plastic screen printer capable of quickly replacing a mold. Background Art

[0002] The full name of a screen printer is "screen printing machine", which is a device that leaks solder paste or patch glue onto the PCB pads through a screen. It can be divided into vertical screen printers, inclined arm screen printers, rotary screen printers, four-column screen printers and fully automatic screen printers. During the processing of plastic packaging shells, a rotary screen printer is required for printing. When in use, the plastic shell needs to be fixed and limited on the mold of the turntable, and then the turntable rotates to drive the plastic shell through each processing procedure of the screen printer;

[0003] However, the existing rotary screen printers usually use multiple bolts to fix the mold. Although this method is firm, the replacement process is complicated. Workers need to frequently replace the mold to fix plastic shells of different sizes, thus indirectly reducing the processing efficiency. Summary of the Utility Model

[0004] In view of this, the utility model provides a plastic screen printer capable of quickly replacing a mold, which can quickly replace the mold, the replacement process is more convenient, and the processing efficiency is improved.

[0005] In order to solve the above technical problems, the utility model provides a plastic screen printing machine that can quickly replace molds, including a workbench and a mold body, a connecting column is installed on one side of the upper surface of the workbench, a turntable is arranged on the upper end of the connecting column, and a convenient replacement mechanism is arranged on the upper surface of the turntable, the convenient replacement mechanism includes a mounting frame evenly arranged on the upper surface of the turntable, a mounting groove is opened in the center of the mounting frame, a limiting column is arranged at the lower end of the mold body, the limiting column is plugged into the mounting groove, a driving cavity is opened on both sides of the interior of the mounting frame, springs are arranged on both sides of the interior of the driving cavity, movable plates are arranged at the ends of the spring, and positioning columns are arranged on both sides of the surface of the movable plate, through holes are opened on the two inner side walls of the mounting groove and corresponding to the positions of the positioning columns, the positioning columns penetrate through the through holes on the inner wall of the mounting groove, and the cross section of the positioning column is matched with the cross section of the through hole on the inner wall of the mounting groove. , positioning grooves are provided on both side walls of the limiting column and corresponding to the position of the positioning column, the positioning column is inserted in the positioning groove, a sliding groove is provided on an inner side wall of the driving cavity, a connecting rod is provided on one side of the movable plate, the connecting rod is slidably arranged in the sliding groove, a connecting plate is provided at the end of the connecting rod, and a handle is provided on one side of the surface of the connecting plate. When the staff needs to install the mold body, they use their fingers to move the two handles to disengage the positioning column from the installation groove, and then insert the limiting column at the lower end of the mold body into the installation groove, and then release the handle to insert the positioning column into the positioning groove to complete the positioning of the limiting column, so that the mold body can be fixed. When the mold body needs to be disassembled, the two handles are moved again to move them away from each other, and then the limiting column is pulled out of the installation groove, so that the mold can be quickly replaced, the replacement process is simpler, and the processing efficiency is improved.

[0006] A through hole is opened in the center of the movable plate, and a guide rod is arranged through the through hole of the movable plate. Both ends of the guide rod are fixed to the inner wall of the driving cavity. The movable plate slides along the length direction of the guide rod, and the guide rod makes the moving process of the movable plate more stable.

[0007] The handle surface is provided with anti-slip threads to prevent the staff's fingers from slipping and increase the friction on the fingers.

[0008] A support column is provided on one side of the workbench, a support plate is provided on one side of the upper surface of the support column, a telescopic push rod is provided on one side of the upper surface of the support plate, the output end of the telescopic push rod passes through the upper wall of the support plate, and the output end of the telescopic push rod is provided with a screen printing machine body. When the staff starts the telescopic push rod, the output end of the telescopic push rod drives the screen printing machine body to descend, so that the screen printing machine prints the plastic shell in the mold body.

[0009] A motor is arranged on one side of the lower surface of the workbench, and the output end of the motor passes through the lower wall of the workbench, and is connected to a driving gear. A driven gear is arranged on the lower side of the surface of the connecting column, and a chain is connected to the surface of the driving gear and the driven gear. When the staff starts the motor, the output end of the motor drives the driving gear to rotate, and the driving gear drives the driven gear to rotate through the chain, so that the driven gear drives the turntable to rotate.

[0010] A number of bases are evenly arranged on the lower surface of the workbench, and the bases are used to support the workbench to make its working process more stable.

[0011] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0012] 1. When the utility model is used, when the staff needs to install the mold body, they use their fingers to move the two handles to disengage the positioning column from the installation groove, and then insert the limiting column at the lower end of the mold body into the installation groove, and then release the handle to insert the positioning column into the positioning groove to complete the positioning of the limiting column, so that the mold body can be fixed. When the mold body needs to be disassembled, the two handles are moved again to move them away from each other, and then the limiting column is pulled out of the installation groove, so that the mold can be quickly replaced, the replacement process is simpler, and the processing efficiency is improved.

[0013] 2. When the utility model is used, a through hole is opened in the center of the movable plate, a guide rod is arranged through the through hole of the movable plate, both ends of the guide rod are fixed to the inner wall of the driving cavity, the movable plate slides along the length direction of the guide rod, and the guide rod makes the moving process of the movable plate more stable.

[0014] 3. When the utility model is used, the staff starts the telescopic push rod, and the output end of the telescopic push rod drives the screen printing machine body to descend, so that the screen printing machine prints the plastic shell in the mold body.

[0015] 4. When the utility model is used, the staff starts the motor, the output end of the motor drives the driving gear to rotate, the driving gear drives the driven gear to rotate through the chain, so that the driven gear drives the turntable to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 This is a cross-sectional view of the internal structure of the quick-change mechanism of the utility model;

[0018] Figure 3 It is a schematic side view of the main body of the utility model.

[0019] Description of the reference numerals: 100, workbench; 101, motor; 102, driving gear; 103, chain; 200, connecting column; 201, driven gear; 300, turntable; 301, mounting frame; 302, mounting groove; 303, driving cavity; 304, spring; 305, movable plate; 306, positioning column; 307, chute; 308, connecting rod; 309, connecting plate; 310, handle; 311, guide rod; 400, die body; 401, limiting column; 402, positioning groove; 500, support column; 501, support plate; 502, telescopic push rod; 503, screen printing machine body. Detailed implementation manners

[0020] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the following will combine the accompanying drawings of the embodiments of the present utility model Figures 1-3 , and clearly and completely describe the technical solutions of the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. Based on the described embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present utility model.

[0021] According to an embodiment of the present utility model, as Figure 1 and Figure 2As shown: This embodiment provides a plastic screen printing machine with a mold that can be quickly replaced, including a workbench 100 and a mold body 400. A connecting column 200 is installed on one side of the upper surface of the workbench 100. A turntable 300 is provided at the upper end of the connecting column 200. A convenient replacement mechanism is provided on the upper surface of the turntable 300. The convenient replacement mechanism includes a mounting frame 301 uniformly arranged on the upper surface of the turntable 300. An installation groove 302 is opened at the center inside the mounting frame 301. A limiting column 401 is provided at the lower end of the mold body 400. The limiting column 401 is inserted into the installation groove 302. Driving cavities 303 are opened on both sides inside the mounting frame 301. Springs 304 are provided on both sides inside the driving cavities 303. A movable plate 305 is provided at the end of the spring 304. Positioning columns 306 are provided on both sides of the surface of the movable plate 305. Through holes are opened on both inner side walls of the installation groove 302 at positions corresponding to the positioning columns 306. The positioning columns 306 penetrate through the through holes on the inner wall of the installation groove 302, and the cross-section of the positioning column 306 is adapted to the cross-section of the through hole on the inner wall of the installation groove 302. Positioning grooves 402 are opened on both side walls of the limiting column 401 at positions corresponding to the positioning columns 306. The positioning columns 306 are inserted into the positioning grooves 402. A sliding groove 307 is opened on one inner side wall of the driving cavity 303. A connecting rod 308 is provided on one side of the movable plate 305. The connecting rod 308 is slidably arranged in the sliding groove 307. A connecting plate 309 is provided at the end of the connecting rod 308. A handle 310 is provided on one side of the surface of the connecting plate 309. When the staff needs to install the mold body 400, use fingers to dial the two handles 310 to make the two handles 310 move away from each other. The two handles 310 drive the connecting plate 309 and the connecting rod 308 to move synchronously. The connecting rod 308 drives the movable plate 305 to move synchronously, so that the movable plate 305 moves away from the installation groove 302. The movable plate 305 drives the positioning column 306 to move synchronously, so that the positioning column 306 disengages from the installation groove 302. At the same time, the movable plate 305 compresses the spring 304. Then, insert the limiting column 401 at the lower end of the mold body 400 into the installation groove 302. Then release the handle 310. The resilience of the spring 304 pushes the movable plate 305 to reset, so that the movable plate 305 drives the positioning column 306 to move towards the limiting column 401, so that the positioning column 306 is inserted into the positioning groove 402, completing the positioning of the limiting column 401, and thus the mold body 400 can be fixed. When it is necessary to disassemble the mold body 400, dial the two handles 310 again to make them move away from each other, so that the movable plate 305 drives the positioning column 306 to disengage from the positioning groove 402, and then cancel the positioning of the limiting column 401, so that the limiting column 401 can be pulled out of the installation groove 302, so that the mold can be quickly replaced, the replacement process is more convenient, and the processing efficiency is improved;A through hole is provided in the center of the movable plate 305. A guide rod 311 is disposed through the through hole of the movable plate 305. Both ends of the guide rod 311 are fixed to the inner wall of the driving cavity 303. The movable plate 305 slides along the length direction of the guide rod 311, and the guide rod 311 makes the movement process of the movable plate 305 more stable; the surface of the handle 310 is provided with anti-slip threads to prevent the fingers of the staff from slipping and improve the friction force on the fingers;

[0022] According to another embodiment of the present invention, as Figure 1 and Figure 3 shown, a support column 500 is provided on one side of the workbench 100. A support plate 501 is provided on one side of the upper surface of the support column 500. A telescopic push rod 502 is provided on one side of the upper surface of the support plate 501. The output end of the telescopic push rod 502 penetrates the upper wall of the support plate 501, and a screen printing machine body 503 is provided at the output end of the telescopic push rod 502. The staff starts the telescopic push rod 502, and the output end of the telescopic push rod 502 drives the screen printing machine body 503 to descend, so that the screen printing machine prints the plastic shell in the mold body 400; a motor 101 is provided on one side of the lower surface of the workbench 100. The output end of the motor 101 penetrates the lower wall of the workbench 100, and a driving gear 102 is connected to the output end of the motor 101. A driven gear 201 is provided on the lower side of the surface of the connecting column 200, and a chain 103 is in transmission connection with the surfaces of the driving gear 102 and the driven gear 201. The staff starts the motor 101, and the output end of the motor 101 drives the driving gear 102 to rotate. The driving gear 102 drives the driven gear 201 to rotate through the chain 103, so that the driven gear 201 drives the turntable 300 to rotate; a plurality of bases are evenly provided on the lower surface of the workbench 100, and the bases are used to support the workbench 100 to make its working process more stable.

[0023] The usage method of the present invention:

[0024] When the staff needs to install the mold body 400, use fingers to move two handles 310 to make the two handles 310 move away from each other. The two handles 310 drive the connecting plate 309 and the connecting rod 308 to move synchronously. The connecting rod 308 drives the movable plate 305 to move synchronously, so that the movable plate 305 moves away from the installation groove 302. The movable plate 305 drives the positioning column 306 to move synchronously, so that the positioning column 306 disengages from the installation groove 302. At the same time, the movable plate 305 compresses the spring 304. Then, insert the limit column 401 at the lower end of the mold body 400 into the installation groove 302. Then release the handle 310. The resilience of the spring 304 pushes the movable plate 305 to reset, so that the movable plate 305 drives the positioning column 306 to move towards the limit column 401, so that the positioning column 306 is inserted into the positioning groove 402 to complete the positioning of the limit column 401, thereby fixing the mold body 400. When the mold body 400 needs to be disassembled, move the two handles 310 away from each other again, so that the movable plate 305 drives the positioning column 306 to disengage from the positioning groove 402, thereby canceling the positioning of the limit column 401, so that the limit column 401 can be pulled out of the installation groove 302, so that the mold can be quickly replaced, and the replacement process is more convenient, improving the processing efficiency.

[0025] The above is the preferred embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle described in the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A plastic screen printing machine capable of quickly changing molds, comprising a workbench (100) and a mold body (400), wherein a connecting column (200) is installed on one side of the upper surface of the workbench (100), and a rotating disk (300) is arranged at the upper end of the connecting column (200), characterized in that: The upper surface of the turntable (300) is provided with a convenient replacement mechanism, and the convenient replacement mechanism includes a mounting frame (301) evenly arranged on the upper surface of the turntable (300), and a mounting groove (302) is provided in the center of the mounting frame (301). A limiting column (401) is provided at the lower end of the mold body (400), and the limiting column (401) is inserted and arranged in the mounting groove (302). The inner sides of the mounting frame (301) are provided with a driving cavity (303), and the inner sides of the driving cavity (303) are provided with springs (304), and the ends of the springs (304) are provided with movable plates (305), and the surfaces of the movable plates (305) are provided with positioning columns (306), and the inner side walls of the mounting groove (302) and the corresponding positioning columns (306) are provided. A through hole is provided at the position of the mounting groove (306), the positioning column (306) passes through the through hole of the inner wall of the mounting groove (302), and the cross section of the positioning column (306) is adapted to the cross section of the through hole of the inner wall of the mounting groove (302), positioning grooves (402) are provided on both side walls of the limiting column (401) and corresponding to the position of the positioning column (306), the positioning column (306) is inserted into the positioning groove (402), a sliding groove (307) is provided on an inner side wall of the driving cavity (303), a connecting rod (308) is provided on one side of the movable plate (305), the connecting rod (308) is slidably provided in the sliding groove (307), a connecting plate (309) is provided at the end of the connecting rod (308), and a handle (310) is provided on one side of the surface of the connecting plate (309).

2. A plastic screen printing machine capable of quickly changing molds as claimed in claim 1, characterized in that: A through hole is provided at the center of the movable plate (305), a guide rod (311) is provided through the through hole of the movable plate (305), and two ends of the guide rod (311) are fixed to the inner wall of the driving cavity (303).

3. A plastic screen printing machine capable of quickly changing molds as claimed in claim 1, characterized in that: The surface of the handle (310) is provided with anti-slip threads.

4. A plastic screen printing machine capable of quickly changing molds as claimed in claim 1, characterized in that: A support column (500) is provided on one side of the workbench (100), a support plate (501) is provided on one side of the upper surface of the support column (500), a telescopic push rod (502) is provided on one side of the upper surface of the support plate (501), an output end of the telescopic push rod (502) passes through the upper wall of the support plate (501), and a screen printing machine body (503) is provided on the output end of the telescopic push rod (502).

5. A plastic screen printing machine capable of quickly changing molds as claimed in claim 1, characterized in that: A motor (101) is arranged on one side of the lower surface of the workbench (100), the output end of the motor (101) passes through the lower wall of the workbench (100), and the output end of the motor (101) is connected to a driving gear (102); a driven gear (201) is arranged on the lower side of the surface of the connecting column (200), and a chain (103) is connected to the surface of the driving gear (102) and the driven gear (201) in a transmission manner.

6. A plastic screen printing machine capable of quickly changing molds as claimed in claim 1, characterized in that: A plurality of bases are evenly arranged on the lower surface of the workbench (100).

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