CN214258121U - Heat seal device is used in protective clothing production - Google Patents
Heat seal device is used in protective clothing production Download PDFInfo
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- CN214258121U CN214258121U CN202022638676.7U CN202022638676U CN214258121U CN 214258121 U CN214258121 U CN 214258121U CN 202022638676 U CN202022638676 U CN 202022638676U CN 214258121 U CN214258121 U CN 214258121U
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- heat sealing
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- protective clothing
- sealing device
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Abstract
The utility model is suitable for the technical field of medical equipment processing equipment, and provides a heat sealing device for producing protective clothing, which comprises a processing seat and a frame arranged at the upper end of the processing seat, wherein the frame is provided with a liftable heat sealing device, a transmission assembly is arranged below the heat sealing device, the transmission assembly is provided with a plurality of heat sealing seats for arranging the protective clothing, and a sliding seat is arranged in each heat sealing seat; the sliding seat is provided with a roller and a driving mechanism for driving the roller to lift; the sliding seat is in threaded connection with a horizontally arranged screw rod, two ends of the screw rod are connected with two bearings, the screw rod is in transmission connection with a motor, and the bearings are arranged on the side wall of the thermal bonding seat; a placing groove is formed in the heat sealing seat, and a first clamping mechanism is arranged on one side close to the placing groove; the other side of the placing groove is provided with a second clamping mechanism, and the side wall of the heat seal seat is also provided with a fan; the device levels the protective clothing before the heat seal to obtain better heat seal effect.
Description
Technical Field
The utility model relates to a medical equipment processing equipment technical field, concretely relates to heat sealing device is used in protection clothing production.
Background
When the existing protective clothing is processed, a pocket is sometimes arranged on the protective clothing, and due to the material problem of the protective clothing, the pocket is generally fixed on the protective clothing in a heat sealing mode; the utility model discloses a chinese utility model patent for this patent number is CN201920030376.5 has proposed a medical protective clothing pocket heat seal device, and the device can promote heat seal efficiency and heat seal precision to the protective clothing pocket, but the device is difficult to carry out the flattening to the protective clothing before the heat seal, and the fold that exists on the protective clothing can influence the smooth heat seal of pocket on the protective clothing greatly.
SUMMERY OF THE UTILITY MODEL
The utility model provides a heat seal device is used in protective clothing production aims at solving the device that is used for the medical protective clothing pocket of heat seal among the prior art and lacks the problem of carrying out the flattening function to protective clothing before the heat seal.
In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:
a heat sealing device for producing protective clothing comprises a processing seat and a rack arranged at the upper end of the processing seat, wherein a liftable heat sealing device is arranged on the rack, a transmission assembly is arranged below the heat sealing device, and a plurality of heat sealing seats for mounting the protective clothing are arranged on the transmission assembly; the transmission assembly is used for driving the heat seal seat to move to the lower part of the heat seal device so that the heat seal device can carry out heat seal on the protective clothing in the heat seal seat; a sliding seat is arranged in the heat seal seat, and the heat seal seat is of a box-shaped structure; the sliding seat is provided with a roller and a driving mechanism for driving the roller to lift; the sliding seat slides above the opening of the heat seal seat to drive the roller to level the protective clothing; the sliding seat is in threaded connection with a horizontally arranged screw rod, two ends of the screw rod are connected with two bearings, the screw rod is in transmission connection with a motor, the bearings are arranged on the side wall of the heat-seal seat, a guide rail matched with the screw rod is further arranged on the heat-seal seat, the guide rail penetrates through the sliding seat, and the motor is started to drive the sliding seat to move along the arrangement direction of the screw rod; a placing groove matched with the size of the protective suit is arranged in the heat sealing seat, and a first clamping mechanism used for fixing the position of the protective suit is arranged close to the placing groove; when the protective clothing is placed in the placing groove, the first clamping mechanism is used for fixing the fastening position of the protective clothing at one position opposite to the opening of the protective clothing pocket; the arrangement is convenient for the roller to level the protective clothing along the opening direction of the pocket; a second clamping mechanism which is arranged corresponding to the first clamping mechanism is arranged on the other side of the placing groove, a fan is further arranged on the side wall of the heat seal seat, and a ventilation hole which penetrates through the side wall of the heat seal seat is formed in the position, close to the fan, of the side wall of the heat seal seat; after the heat seal is finished, the second clamping mechanism fixes the other side of the protective clothing to prevent the protective clothing from being blown away by the fan, and the fan is started to rapidly cool the position of the heat seal pocket so as to improve the processing efficiency.
The protective suit is in the standing groove, and first screens mechanism is fixed protective suit one end in the seat bottom that closes of heat. When the motor is started, the sliding seat drives the roller to move to a position opposite to the opening of the protective clothing pocket, the driving mechanism drives the roller to descend to be tightly attached to the protective clothing, the sliding seat moves in the direction opposite to the previous direction to drive the roller to level the protective clothing, then the heat sealing device carries out heat sealing on the position of the protective clothing pocket, and the driving mechanism drives the roller to ascend; the second clamping mechanism fixes the other side of the protective suit, the fan is opened to rapidly cool the position of the heat-sealed pocket, then the protective suit is loosened by the first clamping mechanism and the second clamping mechanism, and the protective suit is taken out of the heat-sealed seat by a processing worker.
Furthermore, the driving mechanism is a leveling hydraulic cylinder, and a piston rod of the leveling hydraulic cylinder penetrates through the sliding seat and is connected with the roller.
Furthermore, first screens mechanism and second screens mechanism all include the screens motor, and connecting rod run through the heat seal seat are connected to the output of screens motor, are provided with the screens board on the connecting rod, and heat seal seat bottom is provided with the fastening point with screens board assorted, and when the screens motor drove the screens board and rotates, but the screens board chucking was in the fastening point to fixed protective clothing.
Furthermore, a hydraulic cylinder is installed on the upper portion of the side wall of the rack, a heat sealing device is installed at the output end of the hydraulic cylinder, the heat sealing device comprises a device shell, telescopic rods, two heat sealing U-shaped plates and a laser spot lamp, the device shell is installed on the output end of the hydraulic cylinder, the two heat sealing U-shaped plates are installed on the inner top wall of the device shell through the telescopic rods, the laser spot lamp is arranged on the upper side of the middle portion of the heat sealing U-shaped plates, and the laser spot lamp is installed on the inner top wall of the device shell; the hydraulic cylinder is started to drive the heat sealing device to press downwards, and the two heat sealing U-shaped plates simultaneously carry out heat sealing on the two protective clothing pockets, so that the processing efficiency is effectively improved; meanwhile, due to the addition of the laser spot lamp, a processing worker can accurately position the pocket conveniently, and the defective rate is reduced.
Furthermore, the transmission assembly comprises two symmetrically-arranged mounting frames, the mounting frames are mounted on the inner top wall of the processing seat, a plurality of transmission shafts are rotatably mounted on one side, opposite to the two mounting frames, of the two mounting frames, the transmission shafts are fixedly sleeved with transmission rollers, the upper portions of the transmission rollers penetrate through the top wall of the processing seat and reach the outer cavity of the processing seat, the transmission rollers are in transmission connection through transmission belts, a plurality of heat-sealing seats are mounted on the annular outer wall of the transmission belts, one of the transmission shafts is sleeved with a poking disc, three poking grooves are symmetrically formed in the poking disc, a servo motor is mounted on the inner wall of the processing seat through a support, a rotating disc is mounted on the output end of the servo motor, and a poking rod matched with the poking grooves is vertically mounted on the edge of the side wall of the rotating disc; the servo motor starts to drive the rotating disc to rotate, the poke rod vertically installed on the rotating disc rotates to enter the poking groove in the poking disc, the poking disc is poked to rotate for one third of a circle, the transmission roller rotates to drive the transmission belt connected in a transmission mode to rotate for a certain distance, and the plurality of heat sealing seats are sequentially moved to the lower portion of the heat sealing device to be subjected to heat sealing, so that the machining efficiency is improved.
Furthermore, a control assembly for controlling the heat sealing device is arranged on the rack, the control assembly comprises a bottom plate, a pedal, a reset spring, a movable contact piece and a static contact piece, the bottom plate is arranged at the lower part of the side wall of the processing seat, the pedal is arranged at the upper end of the bottom plate and is hinged with one end of the bottom plate, the movable contact piece and the static contact piece are respectively arranged on the pedal and the bottom plate, and the bottom plate is connected with the pedal through the reset spring; the processing personnel trample the footboard, and the movable contact spring contact static contact piece of drive footboard lower extreme installation makes the circuit intercommunication, and the pneumatic cylinder drives the heat seal device and pushes down, carries out the heat seal to the pocket.
Furthermore, the transmission assembly also comprises a PLC controller, the PLC controller is arranged in the inner cavity of the processing seat, and the PLC controller is electrically connected with the servo motor; when a processing worker loosens the pedal, the movable contact piece and the static contact piece are separated from each other, the hydraulic cylinder drives the heat sealing device to ascend and restore to the original position, at the moment, the PLC controller controls the servo motor to rotate, the poking rod is driven to rotate to enter the poking groove in the poking disc, the poking disc is poked to rotate for one third of a circle, and the poking rod and the heat sealing device run in a coordinated mode, so that the processing efficiency is improved.
The utility model has the advantages that: through the matching arrangement of the sliding seat, the motor, the screw, the guide rail, the driving mechanism, the roller and the first clamping mechanism, the motor is started to drive the sliding seat to drive the roller to move to a position opposite to the opening of the protective clothing pocket, the driving mechanism drives the roller to descend to be tightly attached to the protective clothing, the sliding seat moves in the opposite direction to the previous direction to drive the roller to level the protective clothing, and then the heat sealing device carries out heat sealing on the position of the protective clothing pocket so as to avoid the influence of wrinkles existing on the protective clothing on smoothly thermally sealing the pocket on the protective clothing; through the cooperation setting between first screens mechanism, second screens mechanism, the fan, make the fan open the pocket position of quick cooling heat seal to promote machining efficiency.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic view of a heat seal seat portion;
FIG. 3 is a schematic view of a part of a heat sealing apparatus;
FIG. 4 is a schematic view of a portion of the control assembly;
FIG. 5 is a schematic view of a drum section;
figure 6 is a flow chart for flattening the protective garment.
In the figure: 1. processing a base; 2. a frame; 3. a heat seal device; 4. a transmission assembly; 5. thermally closing the base; 6. a sliding seat; 7. a roller; 8. a drive mechanism; 9. a screw; 10. a guide rail; 11. a placement groove; 12. a first clamping mechanism; 13. a position-clamping motor; 14. a clamping plate; 15. a fastening point; 16. a hydraulic cylinder; 17. a device housing; 18. a telescopic rod; 19. heat-sealing the U-shaped plate; 20. a laser spot light; 21. a mounting frame; 22. a drive shaft; 23. a transfer roller; 24. a transfer belt; 25. a dial plate; 26. a poke rod; 27. rotating the disc; 28. a base plate; 29. a pedal; 30. a return spring; 31. a movable contact spring; 32. a static contact piece; 33. a PLC controller; 34. a servo motor; 35. a second clamping mechanism; 36. a fan.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, a clear and complete description will be given below with reference to the technical solutions of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, belong to the scope of protection of the present invention.
As shown in fig. 1-5, a heat sealing device for producing protective clothing comprises a processing seat 1 and a frame 2 arranged at the upper end of the processing seat 1, wherein a lifting heat sealing device 3 is arranged on the frame 2, a transmission assembly 4 is arranged below the heat sealing device 3, and a plurality of heat sealing seats 5 for arranging the protective clothing are arranged on the transmission assembly 4; the transmission assembly 4 is used for driving the heat sealing seat 5 to move below the heat sealing device 3, so that the heat sealing device 3 can conveniently carry out heat sealing on the protective clothing in the heat sealing seat 5; a sliding seat 6 is arranged in the heat seal seat 5, and the heat seal seat 5 is of a box-shaped structure; the sliding seat 6 is provided with a roller 7 and a driving mechanism 8 for driving the roller 7 to ascend and descend; the sliding seat 6 slides above the opening of the heat seal seat 5 to drive the roller 7 to level the protective clothing; the sliding seat 6 is in threaded connection with a screw rod 9 which is horizontally arranged, two ends of the screw rod 9 are connected with two bearings, the screw rod 9 is in transmission connection with a motor, the bearings are arranged on the side wall of the heat seal seat 5, a guide rail 10 which is matched with the screw rod 9 is further arranged on the heat seal seat 5, the guide rail 10 penetrates through the sliding seat 6, and the motor is started to drive the sliding seat 6 to move along the arrangement direction of the screw rod 9; a placing groove 11 matched with the size of the protective suit is arranged in the heat sealing seat 5, and a first clamping mechanism 12 for fixing the position of the protective suit is arranged close to the placing groove 11; when the protective clothing is placed in the placing groove 11, the fastening position of the first clamping mechanism 12 for fixing the protective clothing is positioned at one position opposite to the opening of the pocket of the protective clothing; the arrangement is convenient for the roller 7 to level the protective clothing along the opening direction of the pocket; a second clamping mechanism 35 which corresponds to the first clamping mechanism 12 is arranged on the other side of the placing groove 11, a fan 36 is further arranged on the side wall of the heat seal seat, and a ventilation hole which penetrates through the side wall of the heat seal seat 5 is formed in the position, close to the fan, of the side wall of the heat seal seat 5; after the heat seal is completed, the second clamping mechanism 35 fixes the other side of the protective clothing to prevent the protective clothing from being blown away by the fan 36, and the fan 36 opens to rapidly cool the position of the heat seal pocket, so as to improve the processing efficiency.
Further, the driving mechanism 8 is a leveling hydraulic cylinder, and a piston rod of the leveling hydraulic cylinder penetrates through the sliding seat 6 and is connected with the roller 7.
Furthermore, the first clamping mechanism 12 and the second clamping mechanism 35 both include a clamping motor 13, the output end of the clamping motor 13 is connected with a connecting rod, the connecting rod penetrates through the heat seal seat 5, a clamping plate 14 is arranged on the connecting rod, a fastening point 15 matched with the clamping plate 14 is arranged at the bottom of the heat seal seat 5, and when the clamping motor 13 drives the clamping plate 14 to rotate, the clamping plate 14 can be clamped in the fastening point 15 to fix the protective clothing.
Furthermore, a hydraulic cylinder 16 is installed on the upper portion of the side wall of the rack 2, a heat sealing device 3 is installed at the output end of the hydraulic cylinder 16, the heat sealing device 3 comprises a device shell 17, an expansion link 18, two heat sealing U-shaped plates 19 and a laser spot lamp 20, the device shell 17 is installed on the output end of the hydraulic cylinder 16, the two heat sealing U-shaped plates 19 are installed on the inner top wall of the device shell 17 through the expansion links 18, the laser spot lamp 20 is arranged on the upper side of the middle portion of the heat sealing U-shaped plates 19, and the laser spot lamp 20 is installed on the inner top wall of the device shell 17; the hydraulic cylinder 16 is started to drive the heat sealing device 3 to press downwards, and the two heat sealing U-shaped plates 19 are used for heat sealing two protective clothing pockets at the same time, so that the processing efficiency is effectively improved; meanwhile, due to the addition of the laser spot lamp 20, a processing worker can conveniently and accurately position the pocket, and the defective rate is reduced.
Further, the transmission assembly 4 comprises two symmetrically-arranged mounting frames 21, the mounting frames 21 are mounted on the inner top wall of the processing seat 1, a plurality of transmission shafts 22 are rotatably mounted on one opposite side of the two mounting frames 21, transmission rollers 23 are fixedly sleeved on the transmission shafts 22, the upper portions of the transmission rollers 23 penetrate through the top wall of the processing seat 1 and reach the outer cavity of the processing seat 1, the transmission rollers 23 are in transmission connection through a transmission belt 24, a plurality of heat-seal seats 5 are mounted on the annular outer wall of the transmission belt 24, a poking disc 25 is sleeved on one of the transmission shafts 22, three poking grooves are symmetrically formed in the poking disc 25, a servo motor 34 is mounted on the inner wall of the processing seat 1 through a support, a rotating disc 27 is mounted on the output end of the servo motor 34, and poking rods 26 matched with the poking grooves are vertically mounted on the edge of the side wall of the rotating disc 27; servo motor 34 starts to drive rolling disc 27 and rotates, and the poker rod 26 of perpendicular installation rotates and gets into stirring groove on the stirring dish 25 on the rolling disc 27 to stir stirring dish 25 and rotate a third of a week, transmission roller 23 rotates the transmission belt 24 that drives the transmission and connect and rotates the certain distance, moves heat seal device 3's below with a plurality of heat seal seats 5 in proper order and carries out the heat seal, has consequently improved machining efficiency.
Furthermore, a control assembly for controlling the heat sealing device 3 is arranged on the frame 2, the control assembly comprises a bottom plate 28, a pedal 29, a return spring 30, a movable contact spring 31 and a static contact spring 32, the bottom plate 28 is arranged at the lower part of the side wall of the processing seat 1, the pedal 29 is arranged at the upper end of the bottom plate 28 and is hinged with one end of the bottom plate 28, the movable contact spring 31 and the static contact spring 32 are respectively arranged on the pedal 29 and the bottom plate 28, and the bottom plate 28 and the pedal 29 are connected through the return spring 30; the processing personnel steps on the pedal 29 to drive the movable contact piece 31 arranged at the lower end of the pedal 29 to contact with the static contact piece 32, so that the circuit is communicated, and the hydraulic cylinder 16 drives the heat sealing device 3 to press down to carry out heat sealing on the pocket.
Further, the transmission assembly 4 further comprises a PLC controller 33, the PLC controller 33 is arranged in the inner cavity of the processing seat 1, and the PLC controller 33 is electrically connected with the servo motor 34; when the processing personnel loosens the pedal 29, the movable contact piece 31 and the static contact piece 32 are separated from each other, the hydraulic cylinder 16 drives the heat sealing device 3 to ascend and restore the original position, at this time, the PLC 33 controls the servo motor 34 to rotate, the poke rod 26 is driven to rotate to enter the poke groove on the poke disc 25, and the poke disc 25 is poked to rotate for one third of a circle to coordinate with the heat sealing device 3, so that the processing efficiency is improved.
The utility model discloses a concrete theory of operation: referring to fig. 6, the conveying assembly 4 moves the heat sealing bases 5 with the protective clothing in turn to the lower part of the heat sealing device 3, the protective clothing is placed in the placing groove 11, and the first clamping mechanism 12 fixes one end of the protective clothing at the bottom of the heat sealing bases 5. When the motor is started, the sliding seat 6 drives the roller 7 to move to a position opposite to the opening of the protective clothing pocket, the driving mechanism 8 drives the roller 7 to descend to be tightly attached to the protective clothing, the sliding seat 6 moves in the direction opposite to the previous direction to drive the roller 7 to level the protective clothing, then the heat sealing device 3 carries out heat sealing on the pocket position of the protective clothing, and the driving mechanism 8 drives the roller 7 to ascend; the second clamping mechanism 35 fixes the other side of the protective clothing, the fan 36 opens the position of the pocket which is cooled and sealed quickly, then the first clamping mechanism 12 and the second clamping mechanism 35 loosen the protective clothing, and the processing personnel take the protective clothing out of the heat-sealed seat 5.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are considered to be within the scope of the invention as defined by the following claims.
Claims (7)
1. A heat sealing device for producing protective clothing comprises a processing seat and a rack arranged at the upper end of the processing seat, wherein a lifting heat sealing device is arranged on the rack, a transmission assembly is arranged below the heat sealing device, and a plurality of heat sealing seats for arranging the protective clothing are arranged on the transmission assembly; the sliding seat is provided with a roller and a driving mechanism for driving the roller to lift; the sliding seat is in threaded connection with a horizontally arranged screw rod, two ends of the screw rod are connected with two bearings, the screw rod is in transmission connection with a motor, the bearings are arranged on the side wall of the heat seal seat, a guide rail matched with the screw rod is further arranged on the heat seal seat, and the guide rail penetrates through the sliding seat; a placing groove matched with the size of the protective suit is formed in the heat sealing seat, and a first clamping mechanism used for fixing the position of the protective suit is arranged on one side close to the placing groove; when the protective clothing is placed in the placing groove, the fastening part of the first clamping mechanism is used for fixing the protective clothing and is positioned at one position opposite to the opening of the protective clothing pocket; the standing groove opposite side is provided with the second screens mechanism that corresponds the setting with first screens mechanism, it still is provided with the fan on the hot seat lateral wall to close, the hot seat lateral wall is close to the fan position and is provided with the ventilation hole that runs through the hot seat lateral wall.
2. The heat sealing device for producing protective clothing according to claim 1, wherein the driving mechanism is a leveling hydraulic cylinder, and a piston rod of the leveling hydraulic cylinder penetrates through the sliding seat and is connected with the roller.
3. The heat sealing device according to claim 1, wherein the first clamping mechanism and the second clamping mechanism each comprise a clamping motor, an output end of the clamping motor is connected with a connecting rod, the connecting rod penetrates through the heat sealing seat, a clamping plate is arranged on the connecting rod, a fastening point matched with the clamping plate is arranged at the bottom of the heat sealing seat, and the clamping plate can be clamped in the fastening point when the clamping motor drives the clamping plate to rotate.
4. The heat sealing device for the production of protective clothing according to claim 1, wherein a hydraulic cylinder is installed on the upper portion of the side wall of the machine frame, and a heat sealing device is installed on the output end of the hydraulic cylinder, the heat sealing device comprises a device shell, a telescopic rod, two heat sealing U-shaped plates and a laser spot lamp, the device shell is installed on the output end of the hydraulic cylinder, the two heat sealing U-shaped plates are installed on the inner top wall of the device shell through the plurality of telescopic rods, the laser spot lamp is arranged on the upper side of the middle portion of the heat sealing U-shaped plates, and the laser spot lamp is installed on the inner top wall of the device shell.
5. The heat sealing apparatus in accordance with claim 1, wherein the transport assembly comprises two symmetrically disposed mounting brackets, the mounting frames are arranged on the inner top wall of the processing seat, one side of each of the two mounting frames, which is opposite to each other, is rotatably provided with a plurality of transmission shafts, and the transmission shaft is fixedly sleeved with a transmission roller, the upper part of the transmission roller penetrates through the top wall of the processing seat and reaches the outer cavity of the processing seat, the plurality of transmission rollers are in transmission connection through a transmission belt, the plurality of heat sealing seats are arranged on the annular outer wall of the transmission belt, wherein a poking disc is sleeved on one of the transmission shafts, three poking grooves are symmetrically formed in the poking disc, a servo motor is arranged on the inner wall of the processing seat through a bracket, and the output end of the servo motor is provided with a rotating disc, and the edge of the side wall of the rotating disc is vertically provided with a poke rod matched with the poke groove.
6. The heat sealing device for producing protective clothing according to claim 1, wherein a control assembly for controlling the heat sealing device is arranged on the machine frame, the control assembly comprises a bottom plate, a pedal, a return spring, a movable contact piece and a static contact piece, the bottom plate is arranged on the lower portion of the side wall of the processing seat, the pedal is arranged at the upper end of the bottom plate and is hinged to one end of the bottom plate, the movable contact piece and the static contact piece are respectively arranged on the pedal and the bottom plate, and the bottom plate and the pedal are connected through the return spring.
7. The heat sealing device for producing protective clothing according to claim 1, wherein the transmission assembly further comprises a PLC controller, the PLC controller is arranged in the inner cavity of the processing seat, and the PLC controller is electrically connected with the servo motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022638676.7U CN214258121U (en) | 2020-11-14 | 2020-11-14 | Heat seal device is used in protective clothing production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022638676.7U CN214258121U (en) | 2020-11-14 | 2020-11-14 | Heat seal device is used in protective clothing production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214258121U true CN214258121U (en) | 2021-09-24 |
Family
ID=77775525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022638676.7U Active CN214258121U (en) | 2020-11-14 | 2020-11-14 | Heat seal device is used in protective clothing production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214258121U (en) |
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2020
- 2020-11-14 CN CN202022638676.7U patent/CN214258121U/en active Active
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