Forming apparatus for patch production

Abstract

A forming apparatus for patch production, comprising a forming apparatus body (1). A pressing mechanism (2) is arranged above the forming apparatus body (1); a rotating mechanism (3) is arranged in the middle of the forming apparatus body (1); an external expansion mechanism (4) is arranged below the pressing mechanism (2); a sealing mechanism (5) is arranged on the periphery of the bottom of the pressing mechanism (2); a vacuumizing mechanism (6) is arranged at the bottom of the forming apparatus body (1); the pressing mechanism (2) comprises vertical rods (21); the lower surfaces of the vertical rods (21) are fixedly installed on the upper surface of the forming apparatus body (1); a first round rod (22) is fixedly connected to the upper portions of the vertical rods (21); a cross rod (23) is rotatably connected to the outer wall of the first round rod (22); and a first fixing block (24) is rotatably connected to the lower end of the cross rod (23). By rotating and pressing downwards, each end of a patch is uniformly stressed, so that raw materials in the patch are smoother, thereby preventing the patch from being damaged after being pressed downwards due to the failure of discovery in time of damage to the bottom surface of a pressing plate, avoiding the loss caused by patch damage and the slowdown in production progress caused by the need for manual cleanup, and facilitating continuous use.

Description

A molding device for patch production Technical Field

[0001] The invention relates to the technical field of drug production and processing, in particular to a forming device for patch production. Background Art

[0002] Patches are thin, flexible preparations made from a combination of a drug substance and suitable materials, intended for application to the skin to produce systemic or local effects. Patches can be applied to intact skin surfaces as well as diseased or incomplete skin surfaces. Patches applied to intact skin surfaces that can deliver drugs through the skin into the bloodstream for systemic effects are called transdermal patches.

[0003] Currently, the existing patch production equipment on the market is usually not shielded from dust, and the patches are not well packaged during the patch molding process. The newly produced medicine is immediately packaged, and a large amount of air in the medicine is not discharged in time and is packaged together. The air in the medicine will shorten the storage time of the medicine and affect the use effect of the patch. At the same time, the dosage and flatness of the medicine injected into the patch are not controlled. The dosage of the medicine produced is uneven, and the unevenness of the medicine makes the patches of different heights, which is not easy to package and store the patches after production.

[0004] For this reason, a forming device for patch production is proposed.

[0005] Summary of the Invention

[0006] (1) Technical problems solved

[0007] The object of the present invention is to provide a forming device for patch production to solve the problems raised in the above background technology.

[0008] (2) Technical solution

[0009] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a molding device for patch production, comprising a molding device body, a pressing mechanism provided above the molding device body, a rotating mechanism provided in the middle of the molding device body, an expanding mechanism provided below the pressing mechanism, a sealing mechanism provided around the bottom of the pressing mechanism, and a vacuuming mechanism provided at the bottom of the molding device body.

[0010] Preferably, the downward pressing mechanism includes a vertical rod, the lower surface of the vertical rod is fixedly installed on the upper surface of the forming device body, a round rod 1 is fixedly connected above the vertical rod, the outer wall of the round rod 1 is rotatably connected to a cross rod, the lower end of the cross rod is rotatably connected to a fixed block 1, the lower surface of the fixed block is fixedly connected to a slide, the outer wall of the slide is slidably connected to a hydraulic box, the lower end of the hydraulic box is plugged with a round rod 2, and the lower surface of the round rod 2 is fixedly connected to a pressure plate.

[0011] Preferably, the rotating mechanism includes a support frame, which is fixedly connected to the outer wall of the hydraulic box, and the two inner side walls of the bottom end of the support frame are fixedly connected to spring 1, one end of the spring 1 is fixedly connected to the inner wall of the support frame, and the other end of the spring 1 is fixedly connected to a threaded block, and the outer wall of the threaded block is fixedly connected to round rod 3, and the end of the round rod 3 away from the threaded block is inserted into the lower end of the support frame.

[0012] Preferably, the outward expansion mechanism includes a second fixed block, which is fixedly connected to the upper surface of the pressure plate, and the second fixed block is hinged to an outward expansion rod at one end away from the pressure plate, and the outer surface of the outward expansion rod is fixedly connected to a second spring, and the end of the second spring away from the outward expansion rod is fixedly connected to the outer wall of the pressure plate, and the outer wall of the outward expansion rod is fixedly connected to a fourth round rod, and the second spring is sleeved on the outer wall of the fourth round rod, a T-shaped hole is opened in the pressure plate, and the fourth round rod is inserted into the T-shaped hole, and a fifth round rod is inserted into the lower surface of the pressure plate, and the fifth round rod is slidably connected to the T-shaped hole.

[0013] Preferably, the closing mechanism includes a rotating shaft, which is rotatably connected to the lower surface of the round rod 2, the rotating shaft is cross-shaped, and the lower surfaces of the four ends of the rotating shaft are fixedly connected to spring 3, and the lower surface of spring 3 is fixedly connected to the sealing box.

[0014] Preferably, the vacuum mechanism includes four round rods (6), the round rods (6) are fixedly connected to the inner side wall of the bottom of the molding device body, the upper ends of the round rods (6) are each plugged with a round rod (7), the upper surface of the round rod (7) is fixedly connected to a carrier plate, the lower surface of the carrier plate is fixedly connected to a spring (4), the lower end of the spring (4) is fixedly connected to the molding device body and the spring (4) is sleeved on the outer wall of the round rod (6), the inner side wall of the bottom of the molding device body is fixedly connected to a fixed block (3), the upper end of the fixed block (3) is hinged to a support rod (1), and the middle of the support rod (1) is hinged The support rod 2 has an end hingedly connected to a fixing block 4 at one end away from the support rod 1, and the upper surface of the fixing block 4 is fixedly connected to the lower surface of the carrier plate. The support rod 1 has an end hingedly connected to a hollow rod at one end away from the fixing block 3, and a sliding rod is inserted at one end of the hollow rod away from the support rod 1, and a fixing block 5 is hingedly connected to the end of the sliding rod with a hollow tube. The lower surface of the fixing block 5 is fixedly connected to the upper surface of the carrier plate. The hollow rod has an end hingedly connected to a cover plate at one end away from the sliding rod, and the cover plate fits the end surface of the hollow rod.

[0015] Preferably, the slide plate and the second round rod slide in a limited position inside the hydraulic box, the hydraulic box contains hydraulic oil located between the slide plate and the second round rod, the inner side of the threaded block is provided with a thread, the top of the second round rod is provided with a thread, and the threaded block is engaged with the thread on the second round rod.

[0016] Preferably, a circular through hole is provided on the inner side of the sliding rod, the hollow tube corresponds to the circular hole, the inner wall diameter of the hollow tube is equal to the diameter of the inner circular hole of the sliding rod, the hollow tube is made of silicone, and silicone is provided on one end of the inner side of the cover plate that fits the hollow rod, and the silicone can make the cover plate and the hollow rod seal and fit.

[0017] Preferably, the diameter of the sealing box is three centimeters greater than the length from the center point of the pressure plate to the outermost outer wall of the outward expansion rod, and the round rod four can push the outward expansion rod to expand outward to a maximum width of two centimeters. (3) Beneficial effects

[0018] Compared with existing technologies and products, the present invention has the following beneficial effects:

[0019] 1. By rotating and pressing down, the force on each end of the patch is evenly distributed, and the raw materials inside the patch are flatter. This avoids the situation where the patch is damaged after being pressed down due to the failure to find the bottom surface of the pressing plate in time, avoids the loss caused by patch damage, avoids the need for manual cleaning, improves production efficiency, and facilitates continuous use;

[0020] 2. The expansion mechanism allows the main body of the molding device to be adapted to different dosages of medicine, thereby increasing the applicable range of the molding device. At the same time, the expansion rod can actively discharge patches with excessive dosages, ensuring that the dosage placed in the patch is flat and even, facilitating subsequent packaging and transportation, and ensuring that the surrounding areas of the patch are completely clean when sealed, thereby improving the durability of the seal.

[0021] 3. Through the setting of the vacuum mechanism, the air inside the device that was not completely exhausted during production can be discharged during the molding process of the patch, avoiding the long-term mixing of residual gas and medicine and affecting the use effect of the medicine, improving the quality of the patch medicine, and extending the useful life of the patch. The mechanical structure design of the vacuum mechanism makes the components of the molding device body easier to maintain, reducing the maintenance cost of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] FIG1 is a perspective schematic diagram of the overall structure of the present invention;

[0023] FIG2 is a schematic diagram of the upper portion of the overall structure of the present invention;

[0024] FIG3 is an enlarged schematic diagram of the structure at point A in FIG2 of the present invention;

[0025] FIG4 is a side view of the overall structure of the present invention;

[0026] FIG5 is a front view of the overall structure of the present invention;

[0027] FIG6 is a schematic diagram of the upper portion of the outward expansion mechanism of the present invention;

[0028] FIG7 is an enlarged schematic diagram of the structure at point B in FIG6 of the present invention;

[0029] FIG8 is a schematic cross-sectional view of a pressing plate according to the present invention;

[0030] FIG9 is a schematic cross-sectional view of the overall structure of the present invention.

[0031] Reference numerals: 1. Forming device body; 2. Pressing mechanism; 21. Vertical rod; 22. Round rod 1; 23. Cross rod; 24. Fixed block 1; 25. Slide plate; 26. Hydraulic box; 27. Round rod 2; 28. Pressing plate; 3. Rotating mechanism; 31. Support frame; 32. Spring 1; 33. Round rod 3; 34. Threaded block; 4. Expansion mechanism; 41. Fixed block 2; 42. Expansion rod; 43. Spring 2; 44. Round rod 4; 45. Round rod 5; 46. T-shaped hole; 5. Closing mechanism; 51. Rotating shaft; 52. Spring 3; 53. Sealing box; 6. Vacuuming mechanism; 61. Fixed block three; 62. Support rod one; 63. Support rod two; 64. Fixed block four; 65. Hollow rod; 66. Fixed block five; 67. Sliding rod; 68. Cover plate; 69. Hollow tube; 610. Carrier plate; 611. Spring four; 612. Round rod six; 613. Round rod seven. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0034] As shown in Figures 1 to 9, a molding device for patch production provided by one embodiment of the present invention includes a molding device body 1, a pressing mechanism 2 is provided above the molding device body 1, a rotating mechanism 3 is provided in the middle of the molding device body 1, an expansion mechanism 4 is provided below the pressing mechanism 2, a sealing mechanism 5 is provided around the bottom of the pressing mechanism 2, and a vacuum mechanism 6 is provided at the bottom of the molding device body 1.

[0035] The pressing mechanism 2 includes a vertical rod 21, the lower surface of the vertical rod 21 is fixedly installed on the upper surface of the forming device body 1, and a round rod 22 is fixedly connected above the vertical rod 21. The outer wall of the round rod 22 is rotatably connected to the cross rod 23, and the lower end of the cross rod 23 is rotatably connected to the fixed block 24. The lower surface of the fixed block 24 is fixedly connected to the slide plate 25, and the outer wall of the slide plate 25 is slidably connected to the hydraulic box 26. The lower end of the hydraulic box 26 is plugged with the round rod 27, and the lower surface of the round rod 27 is fixedly connected to the pressure plate 28. The slide plate 25 and the round rod 27 are limitedly slid inside the hydraulic box 26. Hydraulic oil is provided in the hydraulic box 26 between the slide plate 25 and the round rod 27. The inner side of the threaded block 34 is provided with a thread, and the top of the round rod 27 is provided with a thread. The threaded block 34 is engaged with the thread on the round rod 27.

[0036] The rotating mechanism 3 includes a support frame 31, which is fixedly connected to the outer wall of the hydraulic box 26. The two inner side walls of the bottom end of the support frame 31 are fixedly connected to springs 1 32. One end of spring 1 32 is fixedly connected to the inner wall of the support frame 31, and the other end of spring 1 32 is fixedly connected to a threaded block 34. The outer wall of the threaded block 34 is fixedly connected to a round rod 33, and the end of the round rod 33 away from the threaded block 34 is inserted into the lower end of the support frame 31.

[0037] The outward expansion mechanism 4 includes a second fixed block 41, which is fixedly connected to the upper surface of the pressure plate 28. The end of the second fixed block 41 away from the pressure plate 28 is hingedly connected to the outward expansion rod 42. The outer surface of the outward expansion rod 42 is fixedly connected to a second spring 43. The end of the second spring 43 away from the outward expansion rod 42 is fixedly connected to the outer wall of the pressure plate 28. The outer wall of the outward expansion rod 42 is fixedly connected to a fourth round rod 44. The second spring 43 is sleeved on the outer wall of the fourth round rod 44. A T-shaped hole 46 is opened in the pressure plate 28. The fourth round rod 44 is inserted into the T-shaped hole 46. The lower surface of the pressure plate 28 is inserted into the fifth round rod 45. The fifth round rod 45 is slidably connected to the T-shaped hole 46.

[0038] The closing mechanism 5 includes a rotating shaft 51, which is rotatably connected to the lower surface of the round rod 27. The rotating shaft 51 is cross-shaped. The lower surfaces of the four ends of the rotating shaft 51 are fixedly connected to springs 3 52. The lower surface of the spring 3 52 is fixedly connected to a sealing box 53. The diameter of the sealing box 53 is three centimeters larger than the length from the center point of the pressure plate 28 to the outermost side of the outer wall of the outward expansion rod 42. The round rod 44 can push the outward expansion rod 42 to expand outward to a maximum width of two centimeters.

[0039] The vacuum mechanism 6 includes four round rods 612, the round rods 612 are fixedly connected to the inner side wall of the bottom of the molding device body 1, the upper ends of the round rods 612 are all plugged with round rods 7 613, the upper surface of the round rods 7 613 is fixedly connected to the carrier plate 610, the lower surface of the carrier plate 610 is fixedly connected to the spring 4 611, the lower end of the spring 4 611 is fixedly connected to the molding device body 1 and the spring 4 611 is sleeved on the outer wall of the round rod 612, the inner side wall of the bottom of the molding device body 1 is fixedly connected to the fixed block 3 61, the upper end of the fixed block 3 61 is hinged with a support rod 1 62, the middle of the support rod 1 63 is hinged with a support rod 2 63, the end of the support rod 2 63 away from the support rod 1 62 is hinged with a fixed block 4 64, the upper surface of the fixed block 4 64 is fixedly connected to the lower surface of the carrier plate 610, the support rod 1 The end of rod 1 62 away from fixed block 3 61 is hinged with a hollow rod 65, and the end of the hollow rod 65 away from support rod 1 62 is inserted with a sliding rod 67, and the end of the sliding rod 67 away from the hollow rod 65 is hinged with a fixed block 5 66. The end of the sliding rod 67 is fixedly connected to a hollow tube 69. The lower surface of the fixed block 5 66 is fixedly connected to the upper surface of the carrier plate 610. The end of the hollow rod 65 away from the sliding rod 67 is hinged with a cover plate 68. The cover plate 68 is fitted with the end face of the hollow rod 65. A circular through hole is provided on the inner side of the sliding rod 67. The hollow tube 69 corresponds to the circular hole. The inner wall diameter of the hollow tube 69 is equal to the diameter of the inner circular hole of the sliding rod 67. The hollow tube 69 is made of silicone. The inner side of the cover plate 68 that fits the end of the hollow rod 65 is provided with silicone. The silicone can make the cover plate 68 and the hollow rod 65 seal and fit.

[0040] In combination with the above preferred embodiments, the working principle of the present invention is as follows:

[0041] During operation, the staff confirms whether the end of the cross bar 23 away from the slide plate 25 is at its lowest position. After confirmation, the patch to be formed is placed on the pressing plate 28, and then the outer end of the cross bar 23 is lifted upward. The outer end of the cross bar 23 is affected by the lever action of the vertical rod 21, so that the inner end of the cross bar 23 rotates downward with the connection point with the round rod 1 22 as the fulcrum. The cross bar 23 rotates downward to push the fixed block 1 24 hinged thereto to move downward. The downward movement of the fixed block 1 24 drives the slide plate 25 to slide within the hydraulic box 26. The limited sliding of the slide plate 25 within the hydraulic box 26 will squeeze the hydraulic oil inside the hydraulic box 26 and send the hydraulic oil to the lower end of the hydraulic box 26. The round rod 27 is squeezed by the hydraulic oil above and slides downward. The round rod 27 slides downward The pressing plate 28 is pushed down, and the threaded block 34 is pressed by the spring 1 32 to fit on the outer wall of the round rod 27 during sliding. When the round rod 27 moves downward for a distance, the thread provided on the outer wall of the round rod 27 engages with the thread provided on the threaded block 34. The round rod 27 rotates during the downward movement under the influence of the threaded connection with the threaded block 34. The rotating mechanism 3 enables the pressing plate 28 to keep rotating during the pressing process. By rotating and pressing down, the force on each end of the patch is evenly distributed, and the raw materials inside the patch are smoother, avoiding the situation that the patch is damaged after being pressed down due to the bottom surface of the pressing plate 28 being damaged and not discovered in time, thereby avoiding the loss caused by patch breakage and the need for manual cleaning, thereby improving production efficiency and facilitating continuous use.

[0042] When the round rod 5 45 slidably connected to the lower end of the T-shaped hole 46 contacts the upper surface of the carrier plate 610 and is affected by the downward pressure of the pressure plate 28, the round rod 5 45 slides upward along the T-shaped hole 46 to limit the position, and the round rod 5 45 slides upward to squeeze the air inside the T-shaped hole 46 so that the round rod 44 slides out laterally along the T-shaped hole 46. After the round rod 44 slides out, it pushes the outward expansion rod 42 fixedly connected thereto. Since one end of the outward expansion rod 42 is hinged on the fixed block 2 41, the outward expansion rod 42 rotates around the fixed block 2 41 under the push of the round rod 44. When the lower surface of the pressure plate 28 contacts the patch to be formed, The patch to be formed is rotated and pressed downward, and the lower surface of the expansion rod 42 is in contact with the upper surface of the carrier plate 610. The outward rotation of the expansion rod 42 increases the force-bearing surface of the patch and pushes out the excess patch. The expansion mechanism 4 allows the molding device body 1 to be adapted to different doses of medicine, thereby improving the applicable range of the molding device. At the same time, the expansion rod 42 can actively discharge the excess patch, ensuring that the dose placed in the patch is flat and even, facilitating subsequent packaging and transportation, and ensuring that the surroundings of the patch are completely clean when sealed, thereby improving the durability of the seal.

[0043] When the lower end of the pressing plate 28 contacts the upper surface of the carrier plate 610, the spring three 52 fixedly connected to the upper surface of the sealing box 53 is affected by the squeezing effect of the rotating shaft 51 and the carrier plate 610 to shrink. The spring three 52 will also give the carrier plate 610 a downward pressure. When the spring four 611 is compressed and shrinks, it gives the carrier plate 610 an upward reaction force, so that the sealing box 53 is closely fitted to the upper surface of the carrier plate 610, so that the patch is in the sealed space formed by the sealing box 53 and the carrier plate 610. The arrangement of the sealing box 53 provides a sealed environment for the patch exhaust chamber, and can also shield the local area of ​​downward pressure, thereby playing a dust-proof role in the patch molding process, ensuring clean and tidy processing.

[0044] At this time, the staff continues to lift the cross bar 23, and the carrier plate 610 is affected by the downward pressure of the sealing box 53 above, so that the round rod 7 613 fixedly connected to the lower surface of the carrier plate 610 slides into the round rod 6 612. At this time, the distance between the fixed block 4 64 fixedly connected to the lower surface of the carrier plate 610 and the fixed block 3 61 fixedly connected to the molding device body 1 is shortened, so that the distance between the hinged support rod 2 63 and the support rod 1 62 is extended. In the process of the support rod 1 62 extending outward, it is fixed to the carrier plate 610 by the sliding rod 67, so the sliding rod 67 slides within the hollow rod 65. The hollow tube 69 set at the front end of the sliding rod 67 is placed on the patch. In the process, as the sliding rod 67 and the hollow rod 65 slide and extend, negative pressure is formed inside the hollow rod 65, so that the cover plate 68 is tightly fitted to the end of the hollow rod 65. Since the hollow tube 69 has a through hole at only one end, the vacuum mechanism 6 is used to extract air from the patch. Through the setting of the vacuum mechanism 6, the air inside the device that was not completely exhausted during production is discharged during the molding process of the patch, thereby avoiding the residual gas from mixing with the medicine for a long time and affecting the use effect of the medicine, improving the quality of the patch and extending the useful life of the patch. The mechanical structure design of the vacuum mechanism 6 makes the components of the molding device body 1 easier to maintain, thereby reducing the maintenance cost of the equipment.

[0045] When the patch is fully formed, the operator presses down the cross bar 23, and similarly lifts the end of the round rod 27 close to the slide 25. When the sealing box 53 rises, the spring 4 611 returns to its original state due to no pressure from above, stretches upward, and lifts the carrier plate 610 upward until it returns to its original position. The upward lifting of the carrier plate 610 causes the slide bar 67 to slide back in the hollow rod 65. At this time, the hollow rod 65 stores gas extracted from the patch. Affected by the sliding of the slide bar 67, the gas pushes the cover plate 68 to rotate, releasing the state of the cover plate 68 and the hollow rod 65 and discharging it outward. After discharge, the cover plate 68 continues to be attached to the end of the hollow rod 65 due to the influence of gravity.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A molding device for patch production, comprising a molding device body (1), characterized in that: A pressing mechanism (2) is arranged above the molding device body (1), a rotating mechanism (3) is arranged in the middle of the molding device body (1), an expanding mechanism (4) is arranged below the pressing mechanism (2), a sealing mechanism (5) is arranged around the bottom of the pressing mechanism (2), and a vacuum extraction mechanism (6) is arranged at the bottom of the molding device body (1).

2. A patch production molding device according to claim 1, characterized in that: The pressing mechanism (2) comprises a vertical rod (21), the lower surface of the vertical rod (21) is fixedly mounted on the upper surface of the molding device body (1), a round rod (22) is fixedly connected above the vertical rod (21), the outer wall of the round rod (22) is rotatably connected to a cross rod (23), the lower end of the cross rod (23) is rotatably connected to a fixed block (24), the lower surface of the fixed block (24) is fixedly connected to a slide plate (25), the outer wall of the slide plate (25) is slidably connected to a hydraulic box (26), the lower end of the hydraulic box (26) is plugged with a round rod (27), and the lower surface of the round rod (27) is fixedly connected to a pressing plate (28).

3. A patch production molding device according to claim 2, characterized in that: The rotating mechanism (3) comprises a support frame (31), the support frame (31) is fixedly connected to the outer wall of the hydraulic box (26), the two inner side walls at the bottom end of the support frame (31) are fixedly connected to spring one (32), one end of the spring one (32) is fixedly connected to the inner wall of the support frame (31), the other end of the spring one (32) is fixedly connected to a threaded block (34), the outer wall of the threaded block (34) is fixedly connected to a round rod three (33), and the end of the round rod three (33) away from the threaded block (34) is inserted into the lower end of the support frame (31).

4. A patch production forming device according to claim 2, characterized in that: The outward expansion mechanism (4) includes a second fixing block (41), the second fixing block (41) is fixedly connected to the upper surface of the pressure plate (28), the second fixing block (41) is hingedly connected to an outward expansion rod (42) at one end away from the pressure plate (28), the outer surface of the outward expansion rod (42) is fixedly connected to a second spring (43), the end of the second spring (43) away from the outward expansion rod (42) is fixedly connected to the outer wall of the pressure plate (28), the outer wall of the outward expansion rod (42) is fixedly connected to a fourth round rod (44), the second spring (43) is sleeved on the outer wall of the fourth round rod (44), a T-shaped hole (46) is opened in the pressure plate (28), the fourth round rod (44) is inserted into the pressure T-shaped hole (46), and a fifth round rod (45) is inserted into the lower surface of the pressure plate (28), and the fifth round rod (45) is slidably connected to the T-shaped hole (46).

5. A patch production molding device according to claim 4, characterized in that: The sealing mechanism (5) comprises a rotating shaft (51), the rotating shaft (51) is rotatably connected to the lower surface of the second round rod (27), the rotating shaft (51) is cross-shaped, the lower surfaces of the four ends of the rotating shaft (51) are fixedly connected to the third spring (52), and the lower surface of the third spring (52) is fixedly connected to the sealing box (53).

6. A patch production molding device according to claim 1, characterized in that: The vacuum pumping mechanism (6) comprises four round rods (612), the round rods (612) being fixedly connected to the inner side wall of the bottom of the molding device body (1), the upper ends of the round rods (612) being plugged with round rods (613), the upper surfaces of the round rods (613) being fixedly connected with a carrier plate (610), the lower surfaces of the carrier plate (610) being fixedly connected with springs (611), the lower ends of the springs (611) being fixedly connected to the molding device body (1) and the springs (611) being sleeved on the outer walls of the round rods (612), the inner side wall of the bottom of the molding device body (1) being fixedly connected with a fixing block (61), the upper ends of the fixing block (61) being hinged with a support rod (62), the middle of the support rod (62) being hinged with a support rod (63), The end of the support rod 2 (63) away from the support rod 1 (62) is hinged with a fixing block 4 (64), the upper surface of the fixing block 4 (64) is fixedly connected to the lower surface of the carrier plate (610), the end of the support rod 1 (62) away from the fixing block 3 (61) is hinged with a hollow rod (65), the end of the hollow rod (65) away from the support rod 1 (62) is inserted with a sliding rod (67), the end of the sliding rod (67) away from the hollow rod (65) is hinged with a fixing block 5 (66), the end of the sliding rod (67) is fixedly connected with a hollow tube (69), the lower surface of the fixing block 5 (66) is fixedly connected to the upper surface of the carrier plate (610), the end of the hollow rod (65) away from the sliding rod (67) is hinged with a cover plate (68), and the cover plate (68) is in contact with the end surface of the hollow rod (65).

7. A patch production molding device according to claim 3, characterized in that: The slide plate (25) and the second round rod (27) are limitedly slid inside the hydraulic box (26); hydraulic oil is arranged in the hydraulic box (26) between the slide plate (25) and the second round rod (27); threads are arranged inside the thread block (34); threads are arranged above the second round rod (27); the thread block (34) is meshed with threads on the second round rod (27).

8. A patch production molding device according to claim 6, characterized in that: A circular through hole is arranged on the inner side of the slide rod (67), and the hollow tube (69) corresponds to the circular hole. The inner wall diameter of the hollow tube (69) is equal to the inner diameter of the circular hole of the slide rod (67). The hollow tube (69) is made of silicone. The inner side of the cover plate (68) is provided with silicone at one end of the hollow rod (65), and the silicone can make the cover plate (68) and the hollow rod (65) seal and fit.

9. A patch production molding device according to claim 5, characterized in that: The diameter of the sealing box (53) is three centimeters greater than the length from the center point of the pressing plate (28) to the outermost side of the outer wall of the outward expansion rod (42). The round rod (44) can push the outward expansion rod (42) to expand outward to a maximum width of two centimeters.

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