Plastic uptake forming system for medical equipment shell

Abstract

The invention relates to the technical field of medical shell processing, and discloses a medical equipment shell plastic uptake forming system which comprises a shell, a mold is arranged on the shell, an air exhaust hole and an air blowing hole are formed in the mold, a connecting cylinder, a first blocking plate and a second blocking plate are arranged in the shell, the first blocking plate is in contact with the air exhaust hole, and the second blocking plate is in contact with the air blowing hole. The second blocking plate is in contact with the air blowing hole, gas enters the shell through the connecting cylinder and then enters the space between the mold and the plate through the air blowing hole, the first blocking plate blocks the air exhaust hole, the gas between the mold and the plate is prevented from leaking through the air exhaust hole, and tight contact between the plate and the mold is promoted. The first blocking plate is tightly connected with the exhaust hole, so that gas between the mold and the plate is prevented from leaking through the exhaust hole, the softened plate can be bulged by enough gas, and the situation that the plate cannot be bulged due to excessive gas loss is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of medical shell processing, in particular to a medical equipment shell vacuum forming system. Background Art

[0002] Medical device shells are generally made of ABS plastic or other types of plastic. During the production and processing of medical device shells, some shell parts have large curvatures or tapers, which are difficult to produce using ordinary machine tools. Usually, such shell parts are processed and produced using the vacuum forming process.

[0003] As the medical industry's requirements for equipment shell quality, precision and production efficiency continue to increase, some defects of traditional vacuum forming systems have gradually become apparent. When the softened sheet is inflated, the exhaust holes on the mold often lack effective sealing measures, resulting in gas leakage, making it difficult for the sheet to obtain sufficient gas pressure to fully inflate, which not only affects the sheet forming effect, but also causes energy waste and increases production costs. Summary of the invention

[0004] The object of the present invention is to provide a medical device housing vacuum forming system to solve the problems raised in the above background technology.

[0005] Technical Solution

[0006] The present invention provides the following technical solution: a medical device shell vacuum forming system, comprising a shell, a mold is arranged on the shell, an exhaust hole and a blowing hole are opened in the mold, a connecting tube, a first blocking plate and a second blocking plate are arranged in the shell, the first blocking plate is in contact with the exhaust hole, and the second blocking plate is in contact with the blowing hole. After the gas enters the shell through the connecting tube, it will enter between the mold and the plate through the blowing hole. The first blocking plate blocks the exhaust hole to prevent the gas between the mold and the plate from leaking through the exhaust hole, thereby promoting close contact between the plate and the mold.

[0007] Preferably, a partition, a first fixed frame, a second fixed frame and a motor are further provided in the shell, and a rotating gear and a conversion plate are provided on the output shaft of the motor.

[0008] Preferably, a telescopic block is movably installed in the connecting tube, a first ventilation channel is opened in the telescopic block, a second ventilation channel and a third ventilation channel are opened in the connecting tube, and a conversion plate controls the second ventilation channel and the third ventilation channel to be connected with the first ventilation channel.

[0009] Preferably, a connecting plate is provided on the telescopic block, a connecting rod and a first connecting column are provided on the connecting plate, a top end of the connecting rod is slidably connected to the first blocking plate, and a second connecting column and an inclined block are provided on the connecting rod.

[0010] Preferably, a movable frame and a telescopic cylinder are provided on the partition, the movable frame is in sliding contact with the inclined block, the top end of the telescopic cylinder is in sliding contact with the first blocking plate, a plug-in plate is provided at the bottom end of the first blocking plate, and is clamped with the movable frame through the plug-in plate.

[0011] Preferably, a piston plate is provided in the first fixed frame, a fourth connecting column is movably mounted on the side of the piston plate, and the second connecting column extends into the first fixed frame to drive the piston plate to slide in the first fixed frame.

[0012] Preferably, a third connecting column is provided at the end of the fourth connecting column, and the other end of the third connecting column vertically enters the second fixing frame.

[0013] Preferably, a fourth ventilation channel is provided in the second fixing frame, and a movable block is fixedly mounted on the end of the third connecting column, and the movable block controls the opening and closing of the fourth ventilation channel.

[0014] Preferably, a sliding plate and an inclined push plate are movably installed in the second fixed frame, the inclined push plate is fixedly connected to the second blocking plate, and the sliding plate drives the second blocking plate through the inclined push plate to control the opening and closing of the blowing hole.

[0015] Preferably, a waste collecting trough is provided in the shell, and a heating device, a grabbing robot, a vacuum pump and a blower are arranged on the shell. The grabbing robot fixes the plate and grabs the plate waste into the waste collecting trough.

[0016] Beneficial Effects

[0017] Compared with the prior art, the present invention provides a medical device housing vacuum forming system, which has the following beneficial effects:

[0018] 1. In the present invention, the first blocking plate is tightly connected to the exhaust hole to prevent the gas between the mold and the plate from leaking through the exhaust hole, so that the softened plate can get enough gas to swell, avoiding the plate being unable to swell due to excessive gas loss.

[0019] 2. In the present invention, the second ventilation channel, the third ventilation channel and the first ventilation channel can be controlled to be connected through the conversion plate, and the conversion plate is driven to rotate by the motor. After the plate is bulged, the third ventilation channel can be blocked in time to release the second ventilation channel connected to the vacuum pump, thereby realizing the orderly conversion of inflation and exhaust, which is convenient for the plate to be adsorbed on the mold for forming.

[0020] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0021] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a front view of the overall structure of the present invention;

[0024] Figure 2 A top view of the mold in the housing of the present invention;

[0025] Figure 3 This is a cross-sectional view of the housing of the present invention and a first viewing angle;

[0026] Figure 4 This is a cross-sectional view and perspective 2 of the housing of the present invention;

[0027] Figure 5 This is a schematic diagram of the first blocking plate of the present invention;

[0028] Figure 6 This is a working diagram of the connecting plate of the present invention;

[0029] Figure 7 This is a connection diagram of the connecting tube and the first fixing frame of the present invention;

[0030] Figure 8 This is a cross-sectional view of the interior of the movable frame of the present invention;

[0031] Fig. 9 This is an internal diagram of the first fixed frame of the present invention;

[0032] Fig.10 It is a schematic diagram of the third connecting column, the movable block and the fourth ventilation channel of the present invention;

[0033] Fig.11 This is a cross-sectional view of the second fixing frame of the present invention.

[0034] Description of reference numerals:

[0035] In the figure: 1. shell; 2. heating device; 3. waste collecting tank; 4. mold; 5. grabbing manipulator; 6. connecting cylinder; 7. partition; 8. connecting plate; 9. first blocking plate; 10. exhaust hole; 11. first fixed frame; 12. moving frame; 13. connecting rod; 14. second fixed frame; 15. motor; 16. rotating gear; 17. first connecting column; 18. second connecting column; 19. telescopic cylinder; 20. third connecting column; 21. telescopic block; 22. first ventilation channel; 23. conversion plate; 24. second ventilation channel; 25. third ventilation channel; 26. oblique block; 27. plug-in board; 28. piston plate; 29. ​​fourth connecting column; 30. fourth ventilation channel; 31. movable block; 32. sliding plate; 33. second blocking plate; 34. oblique push plate; 35. blowing hole. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0037] Example:

[0038] See also Figure 1-Figure 11 The present invention provides a technical solution: a medical device shell vacuum forming system, comprising a shell 1, a mold 4 is movably installed on the upper end of the shell 1, and an exhaust hole 10 and an air blowing hole 35 are opened in the mold 4. The exhaust hole 10 is located on the lower end surface of the mold 4, and the air blowing holes 35 are located on both sides of the mold 4. A connecting tube 6 is fixedly installed in the shell 1, and a first blocking plate 9 and a second blocking plate 33 are movably installed respectively. The first blocking plate 9 contacts the exhaust hole 10, and the second blocking plate 33 contacts the air blowing hole 35. After the gas enters the shell 1 through the connecting tube 6, it will enter between the mold 4 and the plate through the air blowing hole 35. The first blocking plate 9 blocks the exhaust hole 10 to prevent the gas between the mold 4 and the plate from leaking through the exhaust hole 10, thereby promoting close contact between the plate and the mold 4.

[0039] In this embodiment, a partition 7, a first fixed frame 11, a second fixed frame 14 and a motor 15 are fixedly installed in the shell 1, and the connecting tube 6 passes through the partition 7. The first fixed frame 11 and the motor 15 are located below the partition 7, and the second fixed frame 14 is located above the partition 7. A rotating gear 16 and a conversion plate 23 are fixedly installed on the output shaft of the motor 15, respectively. The conversion plate 23 is located inside the connecting tube 6 and below the telescopic block 21.

[0040] In this embodiment, a telescopic block 21 is movably installed inside the top of the connecting tube 6, and a first ventilation channel 22 is opened in the telescopic block 21. The shape of the first ventilation channel 22 is an inverted "mountain" shape, which is divided into a main channel and two sub-channels. A second ventilation channel 24 and a third ventilation channel 25 are opened through the connecting tube 6. The conversion plate 23 controls the second ventilation channel 24 and the third ventilation channel 25 to be connected with the first ventilation channel 22. The vacuum pump and the second ventilation channel 24 are connected to each other, and the blower and the third ventilation channel 25 are connected to each other. When the conversion plate 23 blocks the second ventilation channel 24, the wind generated by the blower will enter the connecting tube 6 through the third ventilation channel 25, and enter the space between the partition 7 and the mold 4 through the main channel of the first ventilation channel 22 in the telescopic block 21, and enter the second fixed frame 14 through the fourth ventilation channel 30, so as to inflate the softened plate of the mold 4, so as to facilitate the subsequent adsorption of the plate on the mold 4.

[0041] When the telescopic block 21 is evacuated by the vacuum pump, the telescopic block 21 will enter the connecting tube 6, and the main channel of the first ventilation channel 22 will be blocked, and the two secondary channels will take on the work of gas circulation. At the same time, the conversion plate 23 will also open the second ventilation channel 24 and close the third ventilation channel 25.

[0042] In this embodiment, a connecting plate 8 is fixedly installed on the top of the telescopic block 21, a connecting rod 13 is fixedly installed on the side of the connecting plate 8, and a first connecting column 17 is fixedly installed on the bottom end. The first connecting column 17 adopts a tooth column, and the first connecting column 17 is meshingly connected with the rotating gear 16. When the rotating gear 16 rotates, it will drive the first connecting column 17 to move upward or downward, and at the same time drive the connecting plate 8 to move. The top of the connecting rod 13 is slidably connected to the first blocking plate 9, and a telescopic spring and a connecting shaft are arranged at the bottom end of the first blocking plate 9. The connecting shaft passes through the top of the connecting rod 13, and the bottom end of the connecting rod 13 is fixedly installed with a second connecting column 18, and the end of the connecting rod 13 is fixedly installed with a bevel block 26.

[0043] In this embodiment, a movable frame 12 is movably mounted on the partition 7, a telescopic cylinder 19 is fixedly mounted above the partition 7, the movable frame 12 is in sliding contact with the inclined block 26, the top of the telescopic cylinder 19 is in sliding contact with the bottom end of the first blocking plate 9, a plug-in plate 27 is fixedly mounted on the bottom end of the first blocking plate 9, and is clamped with the movable frame 12 through the plug-in plate 27, and a plug-in groove matching the plug-in plate 27 is opened at the top of the movable frame 12.

[0044] The movable frame 12 is provided with an inclined edge matching the inclined block 26. When the inclined block 26 is not moved downward, a distance equal to the thickness of the exhaust hole 10 is set between the inclined block 26 and the inclined edge. When the first blocking plate 9 is completely separated from the exhaust hole 10, the inclined block 26 moves downward and contacts the inclined edge of the movable frame 12.

[0045] The insertion slot does not contact the bevel edge.

[0046] The moving frame 12 is movably mounted on the partition 7. A compression spring is provided between the moving frame 12 and the telescopic cylinder 19. When the moving frame 12 moves toward the telescopic cylinder 19, the compression spring will be compressed. When the moving frame 12 loses the compression force, the compression spring will urge the moving frame 12 to return to its original position.

[0047] When the connecting plate 8 moves downward, the first blocking plate 9 will be driven downward together, and the first blocking plate 9 will be separated from the exhaust hole 10. After the connecting plate 8 moves downward, the inclined block 26 will be driven to contact the bevel in the movable frame 12, and as the connecting plate 8 continues to move downward, the plug-in plate 27 at the bottom of the first blocking plate 9 will be connected to the plug-in groove at the top of the movable frame 12, and the inclined block 26 will push the movable frame 12 to slide on the partition 7 through the bevel. When the movable frame 12 moves, it will drive the first blocking plate 9 to move horizontally through the cooperation of the plug-in plate 27, and the first blocking plate 9 will squeeze the telescopic cylinder 19 when it moves downward, and the first blocking plate 9 will slide on the telescopic cylinder 19 when it moves horizontally, so that when the vacuum pump is sucking air, the first blocking plate 9 will leak the exhaust hole 10, which is convenient for extracting the air between the mold 4 and the plate, and ensuring that the softened thickness plate is adsorbed on the mold 4 for forming.

[0048] In this embodiment, a piston plate 28 is movably installed in the first fixed frame 11, and a fourth connecting column 29 is movably installed on the side of the piston plate 28. A connecting through hole matching the fourth connecting column 29 is penetrated through the inner wall of the upper end of the first fixed frame 11. The lower end of the second connecting column 18 extends into the first fixed frame 11, and the bottom end of the second connecting column 18 does not contact the piston plate 28. After the bottom end of the second connecting column 18 enters the first fixed frame 11, it will drive the piston plate 28 to slide in the first fixed frame 11.

[0049] A telescopic spring is fixedly installed on one side of the piston plate 28 close to the fourth connecting column 29. When the piston plate 28 is pushed by the second connecting column 18, the telescopic spring will be squeezed. When the piston plate 28 loses the squeezing of the second connecting column 18, the piston plate 28 will return to its original position under the action of the telescopic spring.

[0050] In this embodiment, the fourth connecting column 29 extends out of the top end of the first fixing frame 11 and the third connecting column 20 is movably mounted on one end thereof, and the other end of the third connecting column 20 vertically enters the second fixing frame 14 .

[0051] When the connecting plate 8 moves downward, the second connecting column 18 will move downward together. When the second connecting column 18 moves downward, it will enter the first fixed frame 11 and push the piston plate 28 in the first fixed frame 11 to move to the other side. When the piston plate 28 moves, it will drive the fourth connecting column 29 to change the angle with the first fixed frame 11. At the same time, the fourth connecting column 29 will drive the third connecting column 20 to move upward.

[0052] In this embodiment, a fourth ventilation channel 30 is opened in the second fixed frame 14, and the fourth ventilation channel 30 is connected to the blowing hole 35. A movable block 31 is fixedly installed at the end of the third connecting column 20, and the movable block 31 is located in the fourth ventilation channel 30. At the same time, a ventilation hole is opened inside the movable block 31, and the movable block 31 controls the opening and closing of the fourth ventilation channel 30.

[0053] In this embodiment, a sliding plate 32 and an inclined push plate 34 are movably installed in the second fixed frame 14, and an inclined edge is set between the sliding plate 32 and the inclined push plate 34. The side of the inclined push plate 34 is fixedly connected to the second blocking plate 33. The inclined push plate 34 will only move horizontally inside the second fixed frame 14, and the sliding plate 32 moves up and down. The sliding plate 32 drives the second blocking plate 33 to control the opening and closing of the blowing hole 35 through the inclined push plate 34.

[0054] When the third connecting column 20 moves up, the third connecting column 20 will cause the movable block 31 to move up and block the fourth ventilation channel 30. The inclined push plate 34 in the second fixed frame 14 will drive the second blocking plate 33 to block the blowing hole 35 to prevent the blowing hole 35 from leaking when the plate is adsorbed, thereby preventing bulges on the outer shell of the adsorbed medical device.

[0055] When the vacuum pump is sucking air, the first blocking plate 9 will allow the suction hole 10 to leak out, making it easier to extract the air between the mold 4 and the plate; at the same time, the upward movement of the third connecting column 20 will cause the movable block 31 to block the fourth ventilation channel 30, and the oblique push plate 34 will drive the second blocking plate 33 to block the blowing hole 35, thereby preventing the blowing hole 35 from leaking out when the plate is adsorbed, resulting in bulges on the medical device shell formed by adsorption, thereby ensuring the quality of the medical device shell and reducing the workload of subsequent processing.

[0056] After the medical device shell is formed by adsorption, the gas passing through the fourth ventilation channel 30 will drive the sliding plate 32 to push the inclined push plate 34 to move, so that the second blocking plate 33 is separated from the blowing hole 35. The gas enters the gap between the mold 4 and the medical device shell through the blowing hole 35, which facilitates the demoulding of the medical device shell.

[0057] In this embodiment, a waste collecting trough 3 is opened in the shell 1, and the waste collecting trough 3 collects the scraps left after the plate is heated. The shell 1 is provided with a heating device 2, a grabbing robot 5, a vacuum pump and a blower. The heating device 2 heats and softens the plate, and the heating device 2 is located above the mold 4. The plate is located above the mold 4, and the grabbing robot 5 fixes the plate. The grabbing robot 5 can grab the plate and place it on the side of the mold 4, and the grabbing robot 5 can fix the plate to prevent the plate from shaking during the softening process, and grab the plate waste into the waste collecting trough 3.

[0058] A heating device 2 is provided to heat and soften the plate, and a grasping robot 5 is provided to fix the plate and grasp the waste, with a high degree of automation; and a waste collecting trough 3 is provided in the shell 1, which can collect the scraps left after the plate is heated, making the operation more convenient and environmentally friendly.

[0059] Working principle of this embodiment: When in use, first place the plate above the mold 4, and soften the plate through the heating device 2. When the plate is softened to a certain extent, the blower will blow gas between the partition 7 and the bottom of the mold 4 through the third ventilation channel 25 and the telescopic block 21. At this time, the gas will enter the fourth ventilation channel 30 through the movable block 31, and enter the interior of the second fixed frame 14, which will drive the sliding plate 32 to move upward. When the sliding plate 32 moves upward, it will drive the inclined push plate 34 horizontally. When the inclined push plate 34 moves, it will drive the second blocking plate 33 to separate from the blowing hole 35, so that the blowing hole 35 leaks out. In this way, the gas from the blower will enter between the mold 4 and the softened plate through the blowing hole 35, and at this time, the first blocking plate 9 is tightly connected with the exhaust hole 10, which can prevent the gas leakage between the mold 4 and the plate and the loss of more gas, and prevent the softened plate from not getting enough gas and being unable to inflate.

[0060] After the plate bulges, the motor 15 works and drives the first connecting column 17 to move downward by rotating the gear 16, and drives the conversion plate 23 to rotate. When the conversion plate 23 rotates, the third ventilation channel 25 will be blocked, and the second ventilation channel 24 connected to the vacuum pump will be released. When the first connecting column 17 moves downward, it will drive the connecting plate 8 to move downward, and at the same time, the gas between the partition 7 and the bottom of the mold 4 will be extracted through the first ventilation channel 22. When the connecting plate 8 moves downward, it will drive the first blocking plate 9 to move downward through the connecting rod 13, and the second connecting column 18 will also move downward. When the first blocking plate 9 is separated from the exhaust hole 10, the inclined block 26 at the end of the connecting rod 13 will contact the moving frame 12, and the plug-in plate 27 will be engaged with the moving frame 12. As the connecting plate 8 continues to move downward, the moving frame 12 will drive the first blocking plate 9 to separate from the exhaust hole 10 through the plug-in plate 27, and when the second connecting column 18 moves downward, it will drive the second The fourth connecting column 29 moves, and at the same time, when the fourth connecting column 29 moves, it will drive the movable block 31 at the top of the third connecting column 20 to block the fourth ventilation channel 30, so that the sliding plate 32 in the second fixed frame 14 loses power and moves downward, so that the inclined push plate 34 will drive the second blocking plate 33 to connect with the blowing hole 35. In this way, when the vacuum pump is working, the protrusions on the surface of the medical device shell are reduced during adsorption molding, reducing the workload and ensuring the quality of the medical device shell. After the medical device shell is adsorbed and molded, behind the connecting plate 8, the movable block 31 opens the fourth ventilation channel 30. At the same time, the first blocking plate 9 will also enter the exhaust hole 10. The gas passing through the fourth ventilation channel 30 will drive the sliding plate 32 to push the inclined push plate 34 to move, and separate the second blocking plate 33 from the blowing hole 35. The gas enters the gap between the mold 4 and the medical device shell through the blowing hole 35, which is convenient for demolding the medical device shell.

[0061] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A medical device shell blister molding system, comprising a shell, characterized in that: A mold is provided on the shell, a plate is provided on the mold, an exhaust hole and an air blowing hole are opened in the mold, a connecting tube, a first blocking plate and a second blocking plate are provided in the shell, the first blocking plate is in contact with the exhaust hole, and the second blocking plate is in contact with the air blowing hole. After the gas enters the shell through the connecting tube, it will enter between the mold and the plate through the air blowing hole. The first blocking plate will block the exhaust hole to prevent the gas between the mold and the plate from leaking through the exhaust hole, thereby promoting close contact between the plate and the mold.

2. A medical device housing plastic forming system according to claim 1, characterized in that: The shell is also provided with a partition plate, a first fixing frame, a second fixing frame and a motor, and a rotating gear and a conversion plate are provided on the output shaft of the motor.

3. A medical device housing blister forming system according to claim 2, characterized in that: A telescopic block is movably installed in the connecting tube, a first ventilation channel is opened in the telescopic block, a second ventilation channel and a third ventilation channel are opened in the connecting tube, and a conversion plate controls the second ventilation channel and the third ventilation channel to be connected with the first ventilation channel.

4. A medical device housing blister forming system according to claim 3, characterized in that: The telescopic block is provided with a connecting plate, a connecting rod and a first connecting column are provided on the connecting plate, the top end of the connecting rod is slidably connected with the first blocking plate, and a second connecting column and an inclined block are provided on the connecting rod.

5. A medical device housing blister forming system according to claim 4, characterized in that: The partition is provided with a moving frame and a telescopic cylinder, the moving frame is in sliding contact with the inclined block, the top of the telescopic cylinder is in sliding contact with the first blocking plate, the bottom of the first blocking plate is provided with a plug-in plate, and is connected with the moving frame through the plug-in plate.

6. A medical device housing blister forming system according to claim 4, characterized in that: The first fixed frame is provided with a piston plate, a fourth connecting column is movably mounted on a side of the piston plate, and the second connecting column extends into the first fixed frame to drive the piston plate to slide in the first fixed frame.

7. A medical device housing plastic forming system according to claim 6, characterized in that: A third connecting column is disposed at the end of the fourth connecting column, and the other end of the third connecting column vertically enters the second fixing frame.

8. A medical device housing blister forming system according to claim 7, characterized in that: A fourth ventilation channel is provided in the second fixing frame, and a movable block is fixedly installed at the end of the third connecting column, and the movable block controls the opening and closing of the fourth ventilation channel.

9. A medical device housing blister forming system according to claim 8, characterized in that: The second fixed frame is movably provided with a sliding plate and an inclined push plate, the inclined push plate is fixedly connected to the second blocking plate, and the sliding plate drives the second blocking plate through the inclined push plate to control the opening and closing of the blowing hole.

10. The medical device housing plastic forming system according to claim 1, characterized in that: A waste collecting trough is provided in the shell, and a heating device, a grabbing robot, a vacuum pump and a blower are arranged on the shell. The grabbing robot fixes the plate and grabs the plate waste into the waste collecting trough.

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