Medical rubber plug production mold

Abstract

The utility model discloses a medical rubber plug production die which comprises an upper die base and a lower die base, the upper die base is controlled to ascend and descend through an external electric push rod, a stamping plate is installed on the lower surface of the upper die base, stamping cutters are fixedly installed at the bottom end of the stamping plate at equal intervals, a lower die is installed on the top of the lower die base, and a die holder is installed on the lower die base. A rubber sheet is placed on the lower die, a protruding rubber plug on the rubber sheet can be stamped and cut through the stamping knife, air in a cavity is pumped out through application of the air pressure assembly, the rubber plug is driven to be stably stored in the stamping knife, then a hydraulic rod drives a stamping plate to ascend, and an ejector rod extrudes the rubber plug in the stamping knife; the rubber plug blanking device is used for enabling a rubber plug to fall off from the interior of a stamping cutter, the blanking quality of the rubber plug is improved, the screw rod is driven to rotate through the blanking motor, the screw rod is in threaded connection with the moving block, the lower die and the lower die base are connected through the connecting rod, the moving block is driven to move, the lower die is controlled to rotate, and waste on the lower die can be blanked.

Description

Technical Field

[0001] The utility model relates to the technical field of medical rubber stopper production, in particular to a production mold for medical rubber stoppers. Background Technique

[0002] The inner cleanliness, chemical stability, airtightness and biological properties of butyl rubber stoppers are all very good. Therefore, medical rubber stoppers all use stoppers made of butyl rubber. During the production process of butyl rubber stoppers, processes such as batching, mixing, forming and vulcanization are required. During the forming process, a punching die is needed to punch the produced film.

[0003] In the "Precision Punching Die for Medical Rubber Stoppers" with the authorization announcement number of "CN215241361U", it includes a lower die base, a holding mechanism and an air inlet mechanism. Lower die base: A groove is provided in the middle of its upper surface. The bottom wall of the groove is evenly arranged with punching grooves, and the bottom wall of the groove is evenly arranged with rubber stopper placement holes. The rubber stopper placement holes are respectively located in the middle of the punching grooves. Guide holes are provided at the four corners of the upper surface of the lower die base, and guide columns are slidably connected inside the guide holes. The upper surfaces of the guide columns are respectively fixedly connected to the four corners of the lower surface of the upper die base. A punching plate is provided in the middle of the lower surface of the upper die base, and punching knives are evenly arranged on the lower surface of the punching plate. The punching knives are vertically corresponding to the punching grooves respectively.

[0004] In the above-mentioned prior art, the film after injection molding is placed inside the groove, and the rubber plugs protruding on the film are placed inside the rubber plug placement holes. The external electric push rod is started, and the telescopic end of the external electric push rod pushes the upper die base downward. The downward movement of the upper die base drives the stamping plate and the sliding frame plate downward, so that the lower surface of the sliding frame plate contacts the upper surface of the film, and presses the film for punching the film. However, after the punching is completed, people still need to manually remove the scraps of the film, and the operation is relatively cumbersome. At the same time, when the stamping plate moves downward, the lower surface of the stamping plate and the bottom wall of the sliding frame plate are in the same plane, the space inside the sliding frame plate decreases, and the air pressure inside the sliding frame plate increases, so that the air inside the sliding frame plate is discharged through the air outlet holes. The semi-circular sealing plate rotates clockwise. After the exhaust is completed, the semi-circular sealing plate is reset under the elastic force of the torsion spring in the middle of the rotating shaft and seals the air outlet holes. After the punching is completed, the formed rubber plugs are all located inside the punching knives. Then, through the reset of the external electric push rod, the stamping plate moves upward, and the sliding frame plate is reset. The bottom wall of the sliding frame plate is separated from the lower surface of the stamping plate. Because the fan-shaped baffle restricts the counterclockwise rotation of the semi-circular sealing plate, external air cannot enter the inside of the sliding frame plate. At this time, the space inside the sliding frame plate increases, the gas pressure decreases, and negative pressure appears inside the sliding frame plate and inside the negative pressure chamber. Under the action of the atmospheric pressure, the upper surface of the rubber plug is closely attached to the lower surface of the limiting ring. The punching knives move upward to drive the punched rubber plugs upward. The waste generated by punching will remain inside the groove. The receiving plate is placed under the stamping plate, and the pull ring is pulled, and the semi-circular sealing plate rotates clockwise to allow external air to enter the inside of the sliding frame plate for discharging the rubber plugs. Feeding and discharging the rubber plugs by means of atmospheric pressure cannot accurately feed and discharge the rubber plugs. At the same time, the rotation of the semi-circular sealing plate needs to be controlled during the above process, and the operation is relatively cumbersome. Summary of the Invention

[0005] The purpose of the present invention is to provide a production mold for medical rubber plugs to solve the problems raised in the above background technology.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A production mold for medical rubber plugs, including an upper die base and a lower die base. The upper die base is controlled to lift by an external electric push rod. A stamping plate is installed on the lower surface of the upper die base. Punching knives are fixedly installed at equal intervals at the bottom end of the stamping plate. A lower mold is installed on the top of the lower die base. One side of the lower mold is rotatably connected to one side of the top of the lower die base through a hinge, and the lower mold is rotatable.

[0007] As a further preference of this technical solution, a cavity is provided in the middle of the stamping plate. The middle of the punching knife is communicated with the cavity. An air pipe is fixedly installed on one side of the stamping plate, and the air pipe is communicated with a pneumatic component.

[0008] As a further preference of the present technical solution, a ejector rod is fixedly installed on the lower surface of the upper die base corresponding to the position of the stamping knife. A sliding hole is opened on the stamping plate corresponding to the position of the ejector rod. The ejector rod is hermetically and slidably arranged with the sliding hole. Hydraulic rods are symmetrically and fixedly installed on the top of the upper die base. The moving end of the hydraulic rod passes through the upper die base and is fixedly connected to the top of the stamping plate.

[0009] As a further preference of the present technical solution, the length of the ejector rod is slightly greater than the sum of the heights of the stamping plate and the stamping knife.

[0010] As a further preference of the present technical solution, a connecting rod is rotatably installed at the bottom of the lower die through a pin. A moving block is slidably installed inside the lower die base. The top of the moving block is rotatably connected to one end of the lower die away from the connecting rod through a pin.

[0011] As a further preference of the present technical solution, a screw rod is rotatably installed in the middle of the lower die base through a bearing. The screw rod is threadedly connected to the middle of the moving block. A blanking motor is fixedly installed on one side of the lower die base corresponding to the position of the screw rod. The output end of the blanking motor is fixedly connected to the end of the screw rod.

[0012] The utility model provides a production mold for medical rubber stoppers, which has the following beneficial effects:

[0013] (1) In the utility model, by placing the film on the lower die and correspondingly placing the rubber stoppers protruding on the film, the stamping knife can stamp and cut the rubber stoppers protruding on the film. The rubber stoppers will fill the inside of the stamping knife. Then, by using the air pressure component, the air inside the cavity is pumped out, which will drive the rubber stoppers to be stably received inside the stamping knife. Then, the hydraulic rod drives the stamping plate to rise, and the ejector rod will squeeze the rubber stoppers inside the stamping knife to drop the rubber stoppers from inside the stamping knife, improving the quality of rubber stopper blanking.

[0014] (2) In the utility model, the blanking motor drives the screw rod to rotate. Through the threaded connection between the screw rod and the moving block and the connection between the connecting rod and the lower die and the lower die base, the moving block will be driven to move and control the rotation of the lower die, so as to discharge the waste on the lower die. Description of the Drawings

[0015] Figure 1 is the overall structural schematic diagram of the utility model;

[0016] Figure 2 is one of the partial cross-sectional structural schematic diagrams of the utility model;

[0017] Figure 3 is the other partial cross-sectional structural schematic diagram of the utility model;

[0018] In the figure: 1. upper die base; 2. lower die base; 3. stamping plate; 4. stamping knife; 5. lower die; 6. cavity; 7. air pipe; 8. ejector rod; 9. sliding hole; 10. hydraulic rod; 11. connecting rod; 12. moving block; 13. screw rod; 14. unloading motor. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] The utility model provides a technical solution: Figures 1 to 3 As shown, in this embodiment, a medical rubber stopper production mold includes an upper mold base 1 and a lower mold base 2. The upper mold base 1 is controlled to rise and fall by an external electric push rod. A stamping plate 3 is installed on the lower surface of the upper mold base 1, and a stamping knife 4 is fixedly installed equidistantly at the bottom end of the stamping plate 3. A lower mold 5 is installed on the top of the lower mold base 2. One side of the lower mold 5 is rotatably connected to the top side of the lower mold base 2 by a hinge, and the lower mold 5 is rotatable.

[0021] like Figures 1 to 3 As shown, a cavity 6 is opened in the middle of the stamping plate 3, and the middle of the stamping knife 4 is connected to the cavity 6. An air pipe 7 is fixedly installed on one side of the stamping plate 3, and the air pipe 7 is connected to the pneumatic component.

[0022] Place the film on the lower mold 5, place the raised rubber plug on the film accordingly, push the stamping plate 3 downward through the telescopic end of the external electric push rod, put the stamping knife 4 on the stamping plate 3 on the groove on the lower mold 5, and stamp and cut the raised rubber plug on the film. The rubber plug will fill the inside of the stamping knife 4, and then the air in the cavity 6 will be extracted through the use of the pneumatic component, which will drive the rubber plug to be stably stored in the inside of the stamping knife 4.

[0023] like Figures 1 to 3 As shown, a push rod 8 is fixedly installed on the lower surface of the upper die base 1 at a position corresponding to the punching knife 4, a sliding hole 9 is opened at a position corresponding to the push rod 8 on the punching plate 3, the push rod 8 and the sliding hole 9 are sealed and slidably arranged, and a hydraulic rod 10 is symmetrically fixedly installed on the top of the upper die base 1, and the moving end of the hydraulic rod 10 passes through the upper die base 1 and is fixedly connected to the top of the punching plate 3.

[0024] The upper die base 1 is driven upward by an external electric push rod. When the upper die base 1 is moved to the unloading position, the stamping plate 3 is driven upward by the hydraulic rod 10, and the push rod 8 squeezes the rubber plug inside the stamping knife 4 to ensure that all the rubber plugs fall off from the inside of the stamping knife 4, thereby improving the quality of rubber plug unloading.

[0025] like Figures 1 to 3 As shown, the length of the push rod 8 is slightly greater than the sum of the heights of the punching plate 3 and the punching knife 4 .

[0026] It is used to determine that the rubber plug inside the stamping knife 4 can be extruded from the inside of the stamping knife 4.

[0027] As Figures 1 to 3 As shown, a connecting rod 11 is rotatably installed at the bottom of the lower die 5 through a pin, a moving block 12 is slidably installed inside the lower die base 2, and the top of the moving block 12 is rotatably connected to one end of the lower die 5 away from the connecting rod 11 through a pin.

[0028] By driving the moving block 12 to move, the connection between the lower die 5 and the lower die base 2 through the connecting rod 11 will drive the moving block 12 to move and control the rotation of the lower die 5, and the waste on the lower die 5 can be discharged.

[0029] As Figures 1 to 3 As shown, a screw rod 13 is rotatably installed in the middle of the lower die base 2 through a bearing. The screw rod 13 is threadedly connected to the middle of the moving block 12. A blanking motor 14 is fixedly installed at a position corresponding to the screw rod 13 on one side of the lower die base 2, and the output end of the blanking motor 14 is fixedly connected to the end of the screw rod 13.

[0030] By driving the screw rod 13 to rotate through the blanking motor 14, the moving block 12 is driven to move through the threaded connection between the screw rod 13 and the moving block 12.

[0031] The present utility model provides a production mold for medical rubber plugs, and the specific working principle is as follows:

[0032] When the device is in use, the film is placed on the lower die 5, and the raised rubber plugs on the film are placed correspondingly. The external electric push rod is started, and the telescopic end of the external electric push rod pushes the stamping plate 3 downward to sleeve the stamping knife 4 on the stamping plate 3 at the groove on the lower die 5, and punches and cuts the raised rubber plugs on the film. The rubber plugs will fill the inside of the stamping knife 4. Then, by using the air pressure component, the air inside the cavity 6 is pumped out, which will drive the rubber plugs to be stably stored inside the stamping knife 4. Then, the upper die base 1 is driven to move upward by the external electric push rod. When the upper die base 1 moves to the blanking position, the stamping plate 3 is driven to rise by the hydraulic rod 10, and the ejector rod 8 will squeeze the rubber plugs inside the stamping knife 4 to make the rubber plugs fall off from the inside of the stamping knife 4;

[0033] By driving the screw rod 13 to rotate through the blanking motor 14, the moving block 12 is driven to move and the rotation of the lower die 5 is controlled through the threaded connection between the screw rod 13 and the moving block 12 and the connection between the connecting rod 11 and the lower die 5 and the lower die base 2, and the waste on the lower die 5 can be discharged.

[0034] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A production mold for medical rubber stoppers, comprising an upper mold base (1) and a lower mold base (2), wherein the upper mold base (1) is controlled to lift and lower by an external electric push rod, and is characterized in that: A stamping plate (3) is installed on the lower surface of the upper die base (1). Stamping knives (4) are fixedly installed at equal intervals at the bottom end of the stamping plate (3). A lower die (5) is installed on the top of the lower die base (2). One side of the lower die (5) is rotatably connected to one side of the top of the lower die base (2) through a hinge, and the lower die (5) is rotatable.

2. The production mold of a medical rubber stopper according to claim 1, wherein: A cavity (6) is formed in the middle of the stamping plate (3). The middle part of the stamping knife (4) is communicated with the cavity (6). An air pipe (7) is fixedly installed on one side of the stamping plate (3), and the air pipe (7) is communicated with a pneumatic component.

3. A production mold for medical rubber stoppers according to claim 1, characterized in that: A ejector rod (8) is fixedly installed on the lower surface of the upper die base (1) corresponding to the position of the stamping knife (4). A sliding hole (9) is formed in the stamping plate (3) corresponding to the position of the ejector rod (8). The ejector rod (8) is slidably and sealingly arranged in the sliding hole (9). Hydraulic rods (10) are symmetrically and fixedly installed on the top of the upper die base (1). The moving ends of the hydraulic rods (10) pass through the upper die base (1) and are fixedly connected to the top of the stamping plate (3).

4. A production mold for medical rubber stoppers according to claim 3, characterized in that: The length of the ejector rod (8) is greater than the sum of the heights of the stamping plate (3) and the stamping knife (4).

5. The production mold of a medical rubber stopper according to claim 1, characterized in that: A connecting rod (11) is rotatably installed at the bottom of the lower die (5) through a pin. A moving block (12) is slidably installed inside the lower die base (2). The top of the moving block (12) is rotatably connected to one end of the lower die (5) far from the connecting rod (11) through a pin.

6. The production mold of a medical rubber stopper according to claim 5, characterized in that: A screw rod (13) is rotatably installed in the middle of the lower die base (2) through a bearing. The screw rod (13) is threadedly connected to the middle part of the moving block (12). A blanking motor (14) is fixedly installed on one side of the lower die base (2) corresponding to the position of the screw rod (13). The output end of the blanking motor (14) is fixedly connected to the end of the screw rod (13).

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