Pre-filling injection pen rubber gasket vulcanizing equipment

Abstract

The invention belongs to the technical field of vulcanization equipment, and particularly relates to pre-filling injection pen rubber gasket vulcanization equipment which comprises an equipment box, a lower mold plate used for containing a rubber blank plate is fixedly arranged on the upper edge of an inner cavity of the equipment box, and an upper mold plate used for stamping the rubber blank plate is rotationally arranged at the top of the equipment box. The lower template and the upper template are internally provided with heating plates and are hermetically filled with heat conduction liquid; the forming mechanism is arranged in an inner cavity of the equipment box and used for stamping and heating a rubber blank plate to form a rubber gasket shape, and the forming mechanism comprises model holes formed in the upper wall and the lower wall of the lower die plate in an array mode and a baffle attached to the lower surface of the lower die plate and sliding in the front-back direction. According to the invention, through a unique linkage mechanism, automatic operation of mold opening and rubber gasket ejection is realized. When the mold is opened, all the components work cooperatively, the ejection process of the rubber gasket is automatically completed, the material taking step is reduced, the production period is greatly shortened, and the production efficiency is remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of vulcanization equipment, and particularly to a vulcanization equipment for rubber gaskets of pre-filled injection pens. Background Art

[0002] The rubber gasket of the pre-filled injection pen is a key rubber component used in medical pre-filled injection pens and is made from a rubber blank through a vulcanization process. The vulcanization process enhances its elasticity, wear resistance, and sealing performance, enabling it to play an important role in the injection pen, such as sealing the liquid medicine, buffering mechanical movement, or assisting the piston in pushing the liquid medicine, ensuring injection safety and the normal operation of the equipment.

[0003] Existing vulcanization equipment can stamp and heat the rubber blank to form a rubber gasket. After the rubber gasket is processed, due to its high temperature and its own viscosity, it is easy to adhere to the equipment. Although traditional vulcanization equipment has an ejection mechanism, its steps are usually cumbersome and it cannot directly eject the rubber gasket when the mold is opened. Therefore, it is necessary to develop a vulcanization equipment for rubber gaskets of pre-filled injection pens. Summary of the Invention

[0004] The purpose of this part is to outline some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this part, as well as in the abstract and title of the present application, to avoid obscuring the purpose of this part, the abstract, and the title. However, such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] To solve the above technical problems, according to one aspect of the present invention, the following technical solutions are provided: A vulcanization equipment for rubber gaskets of pre-filled injection pens, which includes: An equipment box, the upper edge of the inner cavity of the equipment box is fixedly provided with a lower template for placing a rubber blank, the top of the equipment box is rotatably provided with an upper template for stamping the rubber blank, and heating plates are arranged inside the lower template and the upper template and filled with heat-conducting liquid in a sealed manner; A forming mechanism, arranged in the inner cavity of the equipment box for stamping and heating the rubber blank to form a rubber gasket shape. The forming mechanism includes model holes opened in an array on the upper and lower walls of the lower template, and a baffle plate that fits on the lower surface of the lower template and slides in the front-rear direction; An ejection mechanism, arranged in the inner cavity of the equipment box for ejecting the formed rubber gasket out of the model hole. The ejection mechanism includes a lifting plate arranged below the lower template in a lifting manner, a top block protruding from the top of the lifting plate directly below each model hole, and vertical springs fixedly arranged in an array between the bottom of the lifting plate and the bottom of the inner cavity of the equipment box; The linkage mechanism is arranged inside the equipment box and is used to drive the baffle to gradually move forward and simultaneously drive the lifting plate to gradually descend during the process of opening the upper template, and the spring is continuously stressed and deformed; after the upper template is completely opened, it drives the baffle to move to the front end and the bottom of the model hole is exposed, and the spring releases the pressure to push the lifting plate to rise, and the formed rubber gasket is pushed out of the model hole through the top block.

[0006] As a preferred scheme of a vulcanization device for rubber gaskets of a pre-filled injection pen according to the present invention, wherein: an electric push rod is hinged to the top of the upper template, and the other end of the electric push rod is hinged to the bottom of the gantry.

[0007] As a preferred scheme of a vulcanization device for rubber gaskets of a pre-filled injection pen according to the present invention, wherein: vertical fixed columns are fixedly arranged on the rear sides of the bottom of the equipment box, and vertical rotating columns are rotatably arranged on the front sides of the bottom of the equipment box through bearings. The four top corners of the lifting plate are respectively slidably penetrated by the rod bodies of two fixed columns and rotating columns through linear bearings. A support plate is commonly arranged above the two fixed columns and rotating columns. Through holes for the vertical penetration of the top block are opened on the upper and lower walls of the support plate, and the baffle is located above the support plate.

[0008] As a preferred scheme of a vulcanization device for rubber gaskets of a pre-filled injection pen according to the present invention, wherein: rotating shafts are rotatably arranged on both sides inside the equipment box through bearings. "L"-shaped connecting frames are fixedly arranged on the rod bodies of the two rotating shafts, and the two connecting frames are fixed to the bottom of the upper template; The linkage mechanism includes a first variable-speed gear arranged on the rod body of the right rotating shaft. A linkage rod is rotatably arranged on the side wall inside the equipment box below the first variable-speed gear through a bearing. A second variable-speed gear meshing with the first variable-speed gear and a third variable-speed gear parallel to the second variable-speed gear are arranged on the rod body of the linkage rod. A first support is fixedly arranged on the top of the support plate. A driving rod is rotatably penetrated through the side wall of the first support through a bearing. A fourth variable-speed gear meshing with the third variable-speed gear is arranged at one end of the driving rod, and a first bevel gear is fixed at the other end; the diameter of the second variable-speed gear is smaller than the diameters of the first variable-speed gear and the third variable-speed gear, and the diameter of the fourth variable-speed gear is smaller than the diameter of the third variable-speed gear.

[0009] As a preferred embodiment of the vulcanization equipment for the rubber gasket of a pre-filled injection pen according to the present invention, the following is provided: Second brackets are fixedly arranged around the top of the support plate. A screw rod is rotatably arranged between the two rightmost second brackets, and a guide rod parallel to the screw rod is fixedly arranged between the two leftmost second brackets. A second bevel gear meshing with a first bevel gear is fixedly arranged at the rear end of the screw rod. Connecting blocks are fixedly protruded at the rear of both sides of the baffle. The connecting block on the right is penetrated by the screw rod in a threaded manner, and the connecting block on the left is slidably penetrated by the guide rod.

[0010] As a preferred embodiment of the vulcanization equipment for the rubber gasket of a pre-filled injection pen according to the present invention, the following is provided: Rack bars are arranged along the displacement direction of the baffle on both sides of the baffle. The upper ends of the two rotating columns rotatably penetrate the top wall of the support plate and are fixedly provided with linkage gears meshing with the rack bars. Separation openings are formed behind the rack bars on both sides of the baffle, and the separation openings are arranged at a distance from the linkage gears.

[0011] As a preferred embodiment of the vulcanization equipment for the rubber gasket of a pre-filled injection pen according to the present invention, the following is provided: Third brackets are fixedly arranged on both sides of the bottom inside the equipment box. A follower rod is rotatably arranged between the third bracket and the fixed column through a bearing. A telescopic rod is fixedly arranged in the middle of the rod body of the follower rod, and the other end of the telescopic rod is hinged to the bottom of the support plate. A first bevel gear is fixedly arranged at the position below the lifting plate on the rod body of the rotating column, and a second bevel gear meshing with the first bevel gear is fixedly arranged at the front end of the follower rod.

[0012] As a preferred embodiment of the vulcanization equipment for the rubber gasket of a pre-filled injection pen according to the present invention, the following is provided: A manual pressing plate protrudes from the front end of the lifting plate, and an opening for the manual pressing plate to protrude and move up and down is opened in front of the equipment box.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: Through the cooperation of components such as the linkage mechanism, the automatic operation of mold opening and rubber gasket ejection is realized. When the mold is opened, each component works together to automatically complete the process of ejecting the rubber gasket, reducing the material taking steps, greatly shortening the production cycle, and significantly improving the production efficiency. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in conjunction with the drawings and detailed embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them: Figure 1 It is a structural schematic diagram of the present invention; Figure 2 Schematic diagram of the structure during the opening process of the upper template of the present invention; Figure 3 Schematic diagram of the structure of the internal components of the equipment box of the present invention; Figure 4 For the present invention Figure 3 Schematic diagram of the structure of the components below the middle and lower templates; Figure 5 For the present invention Figure 4 Schematic diagram in the upward view direction; Figure 6 Schematic diagram of the structure of components such as the baffle of the present invention; Figure 7 For the present invention Figure 4 Schematic diagram of the structure of the components below the middle support plate; Figure 8 For the present invention Figure 3 Schematic diagram in the rear view direction; Figure 9 For the present invention Figure 8 Schematic diagram of the structure of area A in the middle of the present invention.

[0015] In the figure: equipment box 100, lower template 101, upper template 102, electric push rod 103, gantry 104, rotating shaft 105, connecting frame 106, forming mechanism 200, model hole 201, baffle 202, ejecting mechanism 300, lifting plate 301, ejecting block 302, spring 303, fixed column 304, rotating column 305, support plate 306, through hole 307, manual pressing plate 308, opening 309, linkage mechanism 400, first speed-changing gear 401, linkage rod 402, second speed-changing gear 403, third speed-changing gear 404, first bracket 405, driving rod 406, fourth speed-changing gear 407, first bevel gear 408, second bracket 409, screw rod 410, guide rod 411, second bevel gear 412, connecting block 413, rack 414, linkage gear 415, separation opening 416, third bracket 417, follower rod 418, telescopic rod 419, first bevel gear 420, second bevel gear 421. Detailed implementation manners

[0016] To make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation manners of the present invention will be given with reference to the accompanying drawings.

[0017] In the following description, many specific details are set forth to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific implementation manners disclosed below.

[0018] Secondly, the present invention will be described in detail with reference to the schematic diagrams. When describing the embodiments of the present invention in detail, for the convenience of explanation, the cross-sectional views showing the device structure will be locally enlarged in an abnormal proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention herein. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.

[0019] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0020] Please refer to Figures 1 - 9 , which shows a schematic structural diagram of an embodiment of a vulcanization device for rubber gaskets of a pre-filled injection pen of the present invention. Please refer to Figures 1 - 9 , and a detailed introduction to a vulcanization device for rubber gaskets of a pre-filled injection pen will be given.

[0021] A vulcanization device for rubber gaskets of a pre-filled injection pen includes: A device box 100, in which an upper edge of the inner cavity of the device box 100 is fixedly provided with a lower template 101 for placing rubber blank plates, and a top template 102 for stamping rubber blank plates is rotatably provided at the top of the device box 100. Heating plates are arranged inside the lower template 101 and the top template 102, and heat-conducting liquid is hermetically filled; the wiring of the heating plates penetrates through the side walls of the lower template 101 and the top template 102 through sealing rings and is connected to external devices; A forming mechanism 200, which is arranged in the inner cavity of the device box 100 and is used for stamping and heating rubber blank plates to form the shape of rubber gaskets. The forming mechanism 200 includes model holes 201 opened in an array on the upper and lower walls of the lower template 101, and a baffle 202 that fits on the lower surface of the lower template 101 and slides in the front-rear direction; when the baffle 202 blocks the model holes 201, the bottom of the model holes 201 is in a closed state, and only then can rubber gaskets be pressed; when the baffle 202 moves and no longer blocks the model holes 201, the bottom of the rubber gaskets is exposed, facilitating the ejection of the rubber gaskets.

[0022] An ejection mechanism 300, which is arranged in the inner cavity of the device box 100 and is used for ejecting the formed rubber gaskets out of the holes of the model holes 201. The ejection mechanism 300 includes a lifting plate 301 arranged below the lower template 101 in a lifting manner. At the top of the lifting plate 301, a top block 302 protrudes directly below each model hole 201. Between the bottom of the lifting plate 301 and the bottom of the inner cavity of the device box 100, vertical springs 303 are fixedly arranged in an array; The linkage mechanism 400 is arranged inside the equipment box 100 and is used to drive the baffle 202 to gradually move forward and simultaneously drive the lifting plate 301 to gradually descend during the process of opening the upper template 102, and the spring 303 is continuously squeezed and deformed. After the upper template 102 is completely opened, it drives the baffle 202 to move to the front end and the bottom of the model hole 201 is exposed. The spring 303 releases pressure to push the lifting plate 301 to rise, and the formed rubber gasket is pushed out of the model hole 201 through the top block 302.

[0023] Furthermore, an electric push rod 103 is hinged to the top of the upper template 102, and the other end of the electric push rod 103 is hinged to the bottom of the gantry 104. By starting the electric push rod 103, the upper template 102 can be driven to rotate, so as to punch the rubber blank, and after the subsequent processing is completed, the upper template 102 can be opened by the electric push rod 103 again.

[0024] Furthermore, vertical fixed columns 304 are fixedly arranged on the two sides at the rear of the bottom of the equipment box 100, and vertical rotating columns 305 are rotatably arranged on the two sides at the front through bearings. The four top corners of the lifting plate 301 are respectively slidably penetrated by the rod bodies of two fixed columns 304 and rotating columns 305 through linear bearings. A support plate 306 is arranged above the two fixed columns 304 and rotating columns 305. Through holes 307 for the vertical penetration of the top block 302 are opened on the upper and lower walls of the support plate 306, and the baffle 202 is located above the support plate 306. By arranging the rotating column 305 and the fixed column 304, it is ensured that the lifting plate 301 can only move up and down, that is, a limiting effect is exerted on the lifting plate 301, and by arranging the linear shaft, the friction between the lifting plate 301 and the rotating column 305 and the fixed column 304 during movement is reduced.

[0025] Furthermore, rotating shafts 105 are rotatably arranged on both sides inside the equipment box 100 through bearings. "L"-shaped connecting frames 106 are fixedly arranged on the rod bodies of the two rotating shafts 105, and the two connecting frames 106 are fixed to the bottom of the upper template 102; The linkage mechanism 400 includes a first speed-changing gear 401 provided on the rod body of the right rotating shaft 105. A linkage rod 402 is rotatably provided on the inner cavity side wall of the equipment box 100 below the first speed-changing gear 401 through a bearing. A second speed-changing gear 403 meshing with the first speed-changing gear 401 and a third speed-changing gear 404 parallel to the second speed-changing gear 403 are provided on the rod body of the linkage rod 402. A first bracket 405 is fixedly provided at the top of the support plate 306. A driving rod 406 is rotatably provided through the side wall of the first bracket 405 through a bearing. A fourth speed-changing gear 407 meshing with the third speed-changing gear 404 is provided at one end of the driving rod 406, and a first bevel gear 408 is fixed at the other end. The diameter of the second speed-changing gear 403 is smaller than the diameters of the first speed-changing gear 401 and the third speed-changing gear 404. The diameter of the fourth speed-changing gear 407 is smaller than the diameter of the third speed-changing gear 404. When the upper template 102 rotates, the rotating shaft 105 is driven to rotate through the connecting frame 106. At this time, the rotating shaft 105 drives the second speed-changing gear 403 and the linkage rod 402 to rotate through the first speed-changing gear 401, and the number of turns of the linkage rod 402 to rotate increases. Then, the driving rod 406 is further driven to rotate more turns through the third speed-changing gear 404 and the fourth speed-changing gear 407. Thus, even when the rotation amplitude of the upper template 102 rotation switch is small, the first bevel gear 408 can obtain a relatively large number of turns of rotation.

[0026] Furthermore, second brackets 409 are fixedly provided around the top of the support plate 306. A screw rod 410 is rotatably provided between the two rightmost second brackets 409. A guide rod 411 parallel to the screw rod 410 is fixedly provided between the two leftmost second brackets 409. A second bevel gear 412 meshing with the first bevel gear 408 is fixedly provided at the rear end of the screw rod 410. Connecting blocks 413 are fixedly protruded at the rear of both sides of the baffle 202. The right connecting block 413 is screwed through by the screw rod 410, and the left connecting block 413 is slidably penetrated by the guide rod 411. When the first bevel gear 408 rotates a relatively large number of turns, the screw rod 410 is driven to rotate through the second bevel gear 412, and the connecting block 413 drives the baffle 202 to displace in the front-rear direction.

[0027] Further, racks 414 are arranged on both sides of the baffle 202 along the displacement direction of the baffle 202. The upper ends of the two rotating columns 305 rotatably penetrate through the top wall of the support plate 306 and are fixedly provided with linkage gears 415 that mesh with the racks 414. Separation openings 416 are formed behind the racks 414 on both sides of the baffle 202, and the separation openings 416 are arranged at a distance from the linkage gears 415. When the baffle 202 gradually moves forward, the two rotating columns 305 are driven to rotate through the racks 414 and the linkage gears 415, and the length of the rack 414 is only enough for the rotating column 305 to rotate half a turn; when the baffle 202 moves to the forefront, the separation opening 416 moves to align with the linkage gear 415 at this time, that is, the rack 414 no longer meshes with the linkage gear 415.

[0028] Further, third brackets 417 are fixedly arranged on both sides of the inner cavity bottom of the equipment box 100. A follower rod 418 is rotatably arranged between the third brackets 417 and the fixed column 304 through bearings. A telescopic rod 419 is fixedly arranged in the middle of the rod body of the follower rod 418. The other end of the telescopic rod 419 is hinged to the bottom of the support plate 306. A first bevel gear 420 is fixedly arranged on the rod body of the rotating column 305 below the lifting plate 301. A second bevel gear 421 that meshes with the first bevel gear 420 is fixedly arranged at the front end of the follower rod 418. When the baffle 202 gradually moves forward, the two rotating columns 305 rotate, and the follower rod 418 is driven to rotate through the first bevel gear 420 and the second bevel gear 421. Then, the lifting plate 301 is continuously pulled down through the telescopic rod 419, that is, the spring 303 is continuously stressed and deformed. When the baffle 202 moves to the forefront, the rack 414 no longer meshes with the linkage gear 415, and the spring 303 is released, pushing the lifting plate 301 to rise, and the formed rubber gasket is pushed out of the hole of the die hole 201 through the top block 302.

[0029] Further, a manual pressing plate 308 protrudes from the front end of the lifting plate 301. An opening 309 is opened in front of the equipment box 100 for the manual pressing plate 308 to protrude and move up and down. After taking out the rubber gasket once, that is, when the upper template 102 is in the open state, if the staff needs to process the rubber blank again, the lifting plate 301 can be pressed through the manual pressing plate 308, so that the top block 302 drops to the lowest point, that is, the spring 303 is in a completely compressed state, and then the upper template 102 is closed. At this time, the baffle 202 will move backward and reset accordingly. During the reset process of the baffle 202, the follower rod 418 will be driven to rotate half a turn in the opposite direction. At this time, the telescopic rod 419 drives the lifting plate 301 to rise, and the spring 303 is restored for subsequent reuse.

[0030] For the specific usage method, place the rubber blank to be processed on the upper template 102, add vulcanizing agent, and start the electric push rod 103 to drive the upper template 102 to rotate and close, so as to stamp the rubber blank and stamp it into a rubber gasket. Moreover, start the heating plate to increase the temperature of the heat transfer fluid, and increase the temperature of the lower template 101 and the upper template 102 by means of heat transfer. Under high temperature and high pressure, the raw rubber in the rubber reacts with the vulcanizing agent to undergo a cross-linking reaction, and the linear molecular chains form a three-dimensional network structure, improving the properties of the rubber such as strength, elasticity, and wear resistance. After the processing is completed, start the electric push rod 103 to gradually open the upper template 102, drive the rotating shaft 105 to rotate through the connecting frame 106. At this time, the rotating shaft 105 drives the second transmission gear 403 and the linkage rod 402 to rotate through the first transmission gear 401, and the number of turns of the linkage rod 402 increases. Then, through the third transmission gear 404 and the fourth transmission gear 407, the driving rod 406 is further driven to rotate more turns, so that even when the amplitude of the rotation switch of the upper template 102 is small, the first bevel gear 408 can obtain a relatively large number of turns of rotation. Then, drive the screw rod 410 to rotate through the second bevel gear 412, and the connecting block 413 drives the baffle 202 to move forward. When the baffle 202 gradually moves forward, drive the two rotating columns 305 to rotate through the rack 414 and the linkage gear 415, drive the follower rod 418 to rotate through the first bevel gear 420 and the second bevel gear 421, and then continuously pull the lifting plate 301 to descend through the telescopic rod 419, that is, the spring 303 is continuously stressed and deformed. When the baffle 202 moves to the front end, at this time the separation port 416 moves to align with the linkage gear 415, that is, the rack 414 is no longer engaged with the linkage gear 415, and the spring 303 is released, pushing the lifting plate 301 to rise, and ejecting the formed rubber gasket out of the hole of the mold hole 201 through the top block 302.

[0031] Although the present invention has been described above with reference to the embodiments, various improvements can be made to it and its components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention can be combined with each other in any way. The reason for not exhaustively describing the situations of these combinations in this specification is only to save space and resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A vulcanization device for rubber gaskets of pre-filled injection pens, characterized in that, Including: An equipment box (100), on the upper edge of the inner cavity of the equipment box (100), a lower template (101) for placing rubber blank plates is fixedly arranged. On the top of the equipment box (100), an upper template (102) for stamping rubber blank plates is rotatably arranged. Heating plates are arranged inside the lower template (101) and the upper template (102), and heat-conducting liquid is hermetically filled; A forming mechanism (200), arranged in the inner cavity of the equipment box (100) for stamping and heating rubber blank plates to form the shape of rubber gaskets. The forming mechanism (200) includes model holes (201) opened in the upper and lower walls of the lower template (101) in an array pattern, and a baffle plate (202) attached to the lower surface of the lower template (101) and sliding in the front-back direction; An ejecting mechanism (300), arranged in the inner cavity of the equipment box (100) for ejecting the formed rubber gaskets out of the holes of the model holes (201). The ejecting mechanism (300) includes a lifting plate (301) arranged below the lower template (101) in a lifting manner. On the top of the lifting plate (301), a top block (302) protrudes directly below each model hole (201). Vertically arranged springs (303) are fixedly arranged in an array pattern between the bottom of the lifting plate (301) and the bottom of the inner cavity of the equipment box (100); A linkage mechanism (400), arranged in the inner cavity of the equipment box (100). During the process of opening the upper template (102), it drives the baffle plate (202) to gradually move forward, synchronously drives the lifting plate (301) to gradually descend, and the springs (303) are continuously squeezed and deformed under force. After the upper template (102) is completely opened, it drives the baffle plate (202) to move to the frontmost end and the bottom of the model hole (201) is in an exposed state. The springs (303) release pressure and push the lifting plate (301) to rise, and the formed rubber gaskets are ejected out of the holes of the model holes (201) through the top blocks (302).

2. The vulcanization equipment for the rubber gasket of a pre-filled injection pen according to claim 1, characterized in that: An electric push rod (103) is hinged to the top of the upper template (102), and the other end of the electric push rod (103) is hinged to the bottom of the gantry (104).

3. A vulcanization device for a rubber gasket of a pre-filled injection pen according to claim 1, characterized in that: On the two rear sides near the bottom of the equipment box (100), vertically arranged fixed columns (304) are fixedly arranged. On the two front sides near the bottom, vertically arranged rotating columns (305) are rotatably arranged through bearings. At the four top corners of the lifting plate (301), the rod bodies of two fixed columns (304) and the rotating columns (305) respectively penetrate through the linear bearings. Above the two fixed columns (304) and the rotating columns (305), a support plate (306) is jointly arranged. Through holes (307) for the vertical penetration of the top blocks (302) are opened in the upper and lower walls of the support plate (306), and the baffle plate (202) is located above the support plate (306).

4. A vulcanizing device for a rubber gasket of a pre-filled injection pen according to claim 3, characterized in that: On both sides of the inner cavity of the equipment box (100), rotating shafts (105) are rotatably arranged through bearings. On the rod bodies of the two rotating shafts (105), "L"-shaped connecting frames (106) are fixedly arranged, and the two connecting frames (106) are fixed to the bottom of the upper template (102); The linkage mechanism (400) includes a first speed-changing gear (401) provided on the rod body of the right rotating shaft (105). A linkage rod (402) is rotatably provided on the inner cavity side wall of the equipment box (100) below the first speed-changing gear (401) through a bearing. A second speed-changing gear (403) meshing with the first speed-changing gear (401) and a third speed-changing gear (404) parallel to the second speed-changing gear (403) are provided on the rod body of the linkage rod (402). A first bracket (405) is fixedly provided on the top of the support plate (306). A driving rod (406) is rotatably penetrated through the side wall of the first bracket (405) through a bearing. A fourth speed-changing gear (407) meshing with the third speed-changing gear (404) is provided at one end of the driving rod (406), and a first bevel gear (408) is fixed at the other end. The diameter of the second speed-changing gear (403) is smaller than the diameters of the first speed-changing gear (401) and the third speed-changing gear (404). The diameter of the fourth speed-changing gear (407) is smaller than the diameter of the third speed-changing gear (404).

5. A vulcanization device for a rubber gasket of a pre-filled injection pen according to claim 4, characterized in that: Second brackets (409) are fixedly provided around the top of the support plate (306). A screw rod (410) is rotatably provided between the two rightmost second brackets (409). A guide rod (411) parallel to the screw rod (410) is fixedly provided between the two leftmost second brackets (409). A second bevel gear (412) meshing with the first bevel gear (408) is fixedly provided at the rear end of the screw rod (410). Connecting blocks (413) are fixedly protruded at the rear of both sides of the baffle (202). The right connecting block (413) is screwed and penetrated by the screw rod (410), and the left connecting block (413) is slidably penetrated by the guide rod (411).

6. The vulcanization device for the rubber gasket of a pre-filled injection pen according to claim 5, characterized in that: Rack bars (414) are provided on both sides of the baffle (202) along the displacement direction of the baffle (202). The upper ends of the two rotating columns (305) are rotatably penetrated through the top wall of the support plate (306) and fixedly provided with linkage gears (415) meshing with the rack bars (414). Separation openings (416) are provided behind the rack bars (414) on both sides of the baffle (202). The separation openings (416) are spaced from the linkage gears (415).

7. A vulcanization device for a rubber gasket of a pre-filled injection pen according to claim 6, characterized in that: Third brackets (417) are fixedly provided on both sides of the inner cavity bottom of the equipment box (100). A follower rod (418) is rotatably provided between the third brackets (417) and the fixed column (304) through a bearing. A telescopic rod (419) is fixedly provided in the middle of the rod body of the follower rod (418). The other end of the telescopic rod (419) is hinged to the bottom of the support plate (306). A first bevel gear (420) is fixedly provided on the rod body of the rotating column (305) below the lifting plate (301). A second bevel gear (421) meshing with the first bevel gear (420) is fixedly provided at the front end of the follower rod (418).

8. A vulcanization device for a rubber gasket of a pre-filled injection pen according to claim 1, characterized in that: The front end of the lifting plate (301) is convexly provided with a manual pressing plate (308), and an opening (309) for the manual pressing plate (308) to protrude and move up and down is opened in front of the equipment box (100).

Images