Vacuum-pumping sealing device for soft blister

Abstract

The utility model relates to the technical field of packaging equipment, in particular to a soft blister vacuumizing sealing device which comprises a support, an upper sealing mechanism, a lower sealing mechanism and a lifting driving mechanism, the upper sealing mechanism comprises an upper mold frame, a top plate, an upper air bag, an upper air nozzle, an air exhaust nozzle, a heat insulation plate, a heat sealing plate, a plurality of guide columns and a plurality of elastic pieces, the upper mold frame is provided with a cavity and a lifting cavity, the outer side wall of the heat sealing plate and the inner side wall of the lifting cavity define a film suction channel, the heat insulation plate is provided with a plurality of guide holes, the lower sealing mechanism comprises a lifting plate, a vacuumizing air nozzle, a lower mold cavity plate and a quick release structure, and the lower mold cavity plate is provided with suction holes, a vacuumizing cavity and a plurality of mold cavities. The upper air bag is compressed to exhaust air through resilience force of the elastic piece, only an air supply system needs to be arranged to control expansion of the upper air bag, an air exhaust system does not need to be arranged to control exhaust of the upper air bag, a control system and a control process are simplified, the production cost is reduced, the lower die cavity plate is rapidly detached and replaced, and the sealing requirements of different products can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging equipment, in particular to a soft blister vacuum sealing device. Background Art

[0002] Among the existing patents, the Chinese patent document with application number 201520373214.3 discloses a sealing device for a three-dimensional packaging machine and a three-dimensional packaging machine, wherein the sealing device includes a sealing upper mold and a sealing lower mold that are separated and combined by lifting control, and an airbag for providing pressure is provided in the mold cavity of the sealing upper mold, and a sealing heating plate is pushed by the airbag to move toward the sealing lower mold. The patent document ensures sufficient sealing pressure by setting two corresponding blister forming devices and sealing devices, and using an airbag as a power device for the sealing upper mold. However, the airbag in the patent document requires an air supply system and an air extraction system to control the expansion and exhaust of the airbag when working, which makes the control system complicated, the production cost high, and the disassembly and assembly of the sealing lower mold inconvenient. Therefore, the defects are very obvious, and it is urgent to provide a solution. Utility Model Content

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide a soft blister vacuum sealing device.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A soft blister vacuum sealing device comprises a bracket, an upper sealing mechanism arranged on the top of the bracket, a lower sealing mechanism which is connected to the bracket by lifting and sliding and is located below the upper sealing mechanism, and a lifting driving mechanism which is installed at the bottom of the bracket and is used to drive the lower sealing mechanism to approach or move away from the upper sealing mechanism. The upper sealing mechanism comprises an upper mold frame connected to the top of the bracket, a top plate installed at the top port of the upper mold frame, an upper air bag installed on the bottom surface of the top plate, a heat insulation plate installed on the bottom surface of the upper air bag, and a heat sealing plate installed on the bottom surface of the heat insulation plate. The top plate is provided with an upper air nozzle connected to the upper air bag. The upper mold frame is connected to a cavity and a lifting cavity in sequence from top to bottom. The upper air bag and the heat insulation plate are both located in the cavity. The heat sealing plate is lifted and arranged at In the lifting chamber, the outer wall of the heat sealing plate and the inner wall of the lifting chamber are arranged to form a film suction channel, the upper mold frame is equipped with an exhaust nozzle connected to the cavity, the bottom wall of the cavity is equipped with multiple guide pillars, the heat insulation plate is provided with multiple guide holes, the multiple guide pillars are respectively slidably matched with the multiple guide holes, a number of elastic parts are arranged between the heat insulation plate and the bottom wall of the cavity, the lower sealing mechanism includes a lifting plate fixedly connected to the lifting end of the lifting drive mechanism, a lower mold cavity plate detachably connected to the top surface of the lifting plate, and a quick-release structure connected between the lifting plate and the lower mold cavity plate, the top surface of the lower mold cavity plate is concavely provided with a number of cavities, the bottom wall of the cavity is concavely provided with suction holes, a vacuum cavity is arranged inside the lower mold cavity plate, and the lower mold cavity plate is equipped with a vacuum air nozzle connected to the vacuum cavity.

[0006] Furthermore, the quick-release structure includes a locking column and a screw member, the locking column is installed on the bottom surface of the lower mold cavity plate, the top surface of the lifting plate is recessed with a socket, the locking column is inserted into the socket, the side of the lifting plate is recessed with a threaded hole, the threaded hole is connected to one side of the socket, the screw member is threadedly connected to the threaded hole, a cone is provided at the inner end of the screw member, a groove is recessed on the side wall of the locking column, the connecting point between the threaded hole and the socket is arranged corresponding to the groove, and the cone can be snapped into the groove.

[0007] Furthermore, a handle is provided at the outer end of the screw member, and the handle is located outside the lifting plate.

[0008] Furthermore, a lifting plate is installed on the bottom plate of the lifting end of the lifting drive mechanism, a movable plate is lifted and arranged above the bottom plate, a lower air bag is arranged between the bottom plate and the movable plate, and a lower air nozzle is installed on the bottom plate and connected to the lower air bag. The movable plate is connected to the bottom plate for lifting and sliding via a guide assembly, and the lower mold cavity plate is installed on the top surface of the movable plate.

[0009] Furthermore, the soft blister vacuum sealing device also includes a base and a position adjustment mechanism installed on the base, and the bracket is installed on the adjustment end of the position adjustment mechanism.

[0010] Furthermore, a stud is provided on the top of the bracket, and the stud is threadedly connected with an upper nut and a lower nut. The upper mold frame is provided with a through hole, and the stud passes through the through hole. The upper mold frame is located between the upper nut and the lower nut.

[0011] Furthermore, the heat sealing plate is provided with a temperature sensor.

[0012] The beneficial effects of the utility model are as follows: in actual application, the sealed upper film and the lower film box body after vacuum forming are moved between the upper sealing mechanism and the lower sealing mechanism, the vacuum nozzle evacuates the cavity, so that the cavity produces negative pressure, so that the film suction channel sucks the sealed upper film tightly to the bottom surface of the upper mold frame, and at the same time, the vacuum nozzle evacuates the vacuum chamber, so that the suction hole produces negative pressure, and the suction hole sucks the lower film box body after vacuum forming tightly into the cavity of the lower mold cavity plate. After the material is placed in the lower film box body, the lifting drive mechanism drives the lifting plate to move together with the lower mold cavity plate and the lower film box body towards the direction close to the upper sealing mechanism until the top edge of the lower mold cavity plate is aligned with the upper mold The frame is in conflict. At this time, the external air supply system introduces gas into the upper airbag through the upper air nozzle, causing the upper airbag to expand. The expanded upper airbag drives the heat insulation plate and the heat sealing plate to move downward and compress the elastic part until the heat sealing plate extends out of the lifting cavity and heat-seals the sealing upper film on the lower film box body to complete the sealing of the lower film box body. After the sealing is completed, the lifting drive mechanism drives the lifting plate and the lower mold cavity plate to descend and reset. The upper air nozzle stops introducing gas into the upper airbag. The heat insulation plate will move upward under the rebound force of the elastic part and compress the upper airbag to exhaust air until the heat sealing plate moves into the lifting cavity to realize the automatic reset of the heat sealing plate, thereby facilitating the next sealing process. Among them, since the lower mold cavity plate is detachably connected to the lifting plate via a quick-release structure, the lower mold cavity plate can be quickly replaced and easily disassembled and assembled to meet the sealing requirements of different products. The utility model realizes the rising and retracting of the heat sealing plate by compressing the upper air bag to exhaust the air through the rebound force of the elastic part. It only needs to set up an air supply system to control the expansion of the upper air bag, and there is no need to set up an exhaust system to control the exhaust of the upper air bag. The control system and control process are simplified, the production cost is reduced, and the lower mold cavity plate can be quickly disassembled and replaced. The disassembly and assembly are convenient and can meet the sealing requirements of different products. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0014] Figure 2 It is a cross-sectional view of the utility model.

[0015] Figure 3 It is a cross-sectional view from another perspective of the present invention.

[0016] Figure 4 It is a three-dimensional structural schematic diagram of the screw rod and the handle of the utility model.

[0017] Figure 5 It is a front view of the lock cylinder of the utility model.

[0018] Description of reference numerals:

[0019] 1. Bracket; 2. Lifting drive mechanism; 3. Upper mold frame; 4. Top plate; 5. Upper airbag; 6. Heat insulation board; 7. Heat sealing plate; 8. Upper air nozzle; 9. Cavity; 10. Lifting cavity; 11. Air suction nozzle; 12. Guide column; 13. Elastic member; 14. Lifting plate; 15. Lower mold cavity plate; 16. Quick release structure; 17. Cavity; 18. Vacuum chamber; 19. Vacuum nozzle; 20. Locking column; 21. Screw member; 22. Groove; 23. Cone; 24. Handle; 25. Bottom plate; 26. Movable plate; 27. Lower airbag; 28. Lower air nozzle; 29. ​​Guide assembly; 30. Position adjustment mechanism; 31. Base; 32. Stud; 33. Upper nut; 34. Lower nut; 35. Temperature sensor; 36. Sealing upper film; 37. Lower film box body. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings. The contents mentioned in the implementation modes are not intended to limit the present invention.

[0021] like Figures 1 to 5 As shown, the utility model provides a soft blister vacuum sealing device, which includes a bracket 1, an upper sealing mechanism arranged on the top of the bracket 1, a lower sealing mechanism connected to the bracket 1 in a lifting and sliding manner and located below the upper sealing mechanism, and a lifting drive mechanism 2 installed at the bottom of the bracket 1 and used to drive the lower sealing mechanism to approach or move away from the upper sealing mechanism. The upper sealing mechanism includes an upper mold frame 3 connected to the top of the bracket 1, a top plate 4 installed at the top port of the upper mold frame 3, an upper air bag 5 installed on the bottom surface of the top plate 4, a heat insulation plate 6 installed on the bottom surface of the upper air bag 5, and a heat sealing plate 7 installed on the bottom surface of the heat insulation plate 6. The top plate 4 is equipped with an upper air nozzle 8 connected to the upper air bag 5. The upper mold frame 3 is connected to a cavity 9 and a lifting cavity 10 in sequence from top to bottom. The upper air bag 5 and the heat insulation plate 6 are both located in the cavity 9, and the heat sealing plate 7 is lifted and set in the lifting cavity 10 The outer wall of the heat sealing plate 7 and the inner wall of the lifting cavity 10 are arranged to form a film suction channel, the upper mold frame 3 is equipped with an exhaust nozzle 11 connected to the cavity 9, the bottom wall of the cavity 9 is equipped with a plurality of guide pillars 12, the heat insulation plate 6 is provided with a plurality of guide holes, and the plurality of guide pillars 12 are respectively slidably matched with the plurality of guide holes, and a plurality of elastic members 13 are arranged between the heat insulation plate 6 and the bottom wall of the cavity 9. The lower sealing mechanism includes a lifting plate 14 fixedly connected to the lifting end of the lifting drive mechanism 2, a lower mold cavity plate 15 detachably connected to the top surface of the lifting plate 14, and a quick-release structure 16 connected between the lifting plate 14 and the lower mold cavity plate 15. The top surface of the lower mold cavity plate 15 is concavely provided with a plurality of cavities 17, and the bottom wall of the cavity 17 is concavely provided with suction holes. A vacuum cavity 18 is arranged inside the lower mold cavity plate 15, and the lower mold cavity plate 15 is equipped with a vacuum air nozzle 19 connected to the vacuum cavity 18.

[0022] In actual application, the sealing upper film 36 and the lower film box body 37 after vacuum forming are moved between the upper sealing mechanism and the lower sealing mechanism, and the vacuum nozzle 11 evacuates the cavity 9, so that the cavity 9 generates negative pressure, so that the film suction channel sucks the sealing upper film 36 tightly to the bottom surface of the upper mold frame 3. At the same time, the vacuum nozzle 19 evacuates the vacuum chamber 18, so that the suction hole generates negative pressure, and the suction hole sucks the lower film box body 37 after vacuum forming into the cavity 17 of the lower mold cavity plate 15. After the material is placed in the lower film box body 37, the lifting drive mechanism 2 drives the lifting plate 14 to move together with the lower mold cavity plate 15 and the lower film box body 37 towards the upper sealing mechanism until the top edge of the lower mold cavity plate 15 conflicts with the upper mold frame 3. When the upper air bag 5 is inflated, the external air supply system introduces gas into the upper air bag 5 through the upper air nozzle 8, so that the upper air bag 5 expands. The expanded upper air bag 5 drives the heat insulation plate 6 and the heat sealing plate 7 to move downward and compress the elastic member 13 until the heat sealing plate 7 extends out of the lifting chamber 10 and heat-seals the sealing upper film 36 on the lower film box body 37 to complete the sealing of the lower film box body 37. After the sealing is completed, the lifting drive mechanism 2 drives the lifting plate 14 to lower and reset the lower mold cavity plate 15 together. The upper air nozzle 8 stops introducing gas into the upper air bag 5. The heat insulation plate 6 will move upward under the rebound force of the elastic member 13 and compress the upper air bag 5 to exhaust gas until the heat sealing plate 7 moves into the lifting chamber 10 to realize the automatic reset of the heat sealing plate 7, so as to facilitate the next sealing process. Among them, since the lower mold cavity plate 15 is detachably connected to the lifting plate 14 via the quick-release structure 16, the lower mold cavity plate 15 can be quickly replaced and conveniently disassembled and assembled to meet the sealing requirements of different products. The utility model realizes the rising and retracting of the heat sealing plate 7 by compressing the upper air bag 5 to exhaust the air through the rebound force of the elastic member 13. It only needs to set up an air supply system to control the expansion of the upper air bag 5, and there is no need to set up an exhaust system to control the exhaust of the upper air bag 5. The control system and control process are simplified, the production cost is reduced, and the lower mold cavity plate 15 can be quickly disassembled and replaced. The disassembly and assembly are convenient and can meet the sealing requirements of different products.

[0023] In this embodiment, the quick-release structure 16 includes a locking column 20 and a screw member 21. The locking column 20 is installed on the bottom surface of the lower mold cavity plate 15. The top surface of the lifting plate 14 is recessed with an insertion hole. The locking column 20 is inserted into the insertion hole. The side of the lifting plate 14 is recessed with a threaded hole. The threaded hole is connected to one side of the insertion hole. The screw member 21 is threadedly connected to the threaded hole. The inner end of the screw member 21 is provided with a cone 23. The side wall of the locking column 20 is recessed with a groove 22. The connection between the threaded hole and the insertion hole is corresponding to the groove 22. The cone 23 can be engaged with the groove 22. Preferably, the groove 22 is an annular groove.

[0024] In actual application, when the lower mold cavity plate 15 is assembled with the lifting plate 14, the locking column 20 is inserted into the insertion hole. At this time, the groove 22 on the locking column 20 is located at the connection between the threaded hole and the insertion hole. Then the screw member 21 is screwed so that the screw member 21 is gradually screwed into the threaded hole until the cone 23 moves into the groove 22, so that the cone 23 is engaged with the groove 22, and the cone 23 tightens the locking column 20, thereby locking the lower mold cavity plate 15 on the lifting plate 14; when the lower mold cavity plate 15 needs to be removed, it is only necessary to screw the screw member 21 in the opposite direction so that the screw member 21 is gradually screwed out of the threaded hole until the cone 23 leaves the groove 22 to unlock the locking column 20, and then the lower mold cavity plate 15 can be pulled off the lifting plate 14. This structural design is convenient for disassembly and assembly and simple to operate.

[0025] In this embodiment, a handle 24 is provided at the outer end of the screw member 21, and the handle 24 is located outside the lifting plate 14. The provision of the handle 24 facilitates the screw member 21 to be screwed.

[0026] In this embodiment, the lifting plate 14 is installed on the bottom plate 25 at the lifting end of the lifting drive mechanism 2, the movable plate 26 is lifted and arranged above the bottom plate 25, the lower air bag 27 is arranged between the bottom plate 25 and the movable plate 26, and the lower air nozzle 28 is installed on the bottom plate 25 and connected with the lower air bag 27. The movable plate 26 is connected to the bottom plate 25 for lifting and sliding via the guide assembly 29, and the lower mold cavity plate 15 is installed on the top surface of the movable plate 26.

[0027] In actual application, when the sealing of some products cannot be completed by lifting the lower mold cavity plate 15 once, gas can be introduced into the lower air bag 27 through the lower air nozzle 28 to expand the lower air bag 27. The expanded lower air bag 27 drives the movable plate 26 to drive the lower mold cavity plate 15 to rise and fall synchronously until the lower mold cavity plate 15 cooperates with the heat sealing plate 7 to complete the sealing work. This structural design can realize the secondary lifting of the lower mold cavity plate 15. When the air supply to the lower air bag 27 is stopped, the lower air bag 27 will be compressed and exhausted under the gravity of the lower mold cavity plate 15 and the movable plate 26, so as to realize the automatic reset of the movable plate 26 and the automatic exhaust of the lower air bag 27.

[0028] In this embodiment, the soft blister vacuum sealing device further includes a base 31 and a position adjustment mechanism 30 mounted on the base 31, and the bracket 1 is mounted on the adjustment end of the position adjustment mechanism 30. The position adjustment mechanism 30 can adjust the position of the bracket 1, thereby adjusting the sealing position of the upper sealing mechanism and the lower sealing mechanism.

[0029] In this embodiment, a stud 32 is provided at the top of the bracket 1, and the stud 32 is threadedly connected with an upper nut 33 and a lower nut 34. The upper mold frame 3 is provided with a through hole, and the stud 32 passes through the through hole, and the upper mold frame 3 is located between the upper nut 33 and the lower nut 34. In actual application, when the height position of the upper mold frame 3 needs to be adjusted, the upper nut 33 and the lower nut 34 are screwed respectively until the upper mold frame 3 is adjusted to the required height and levelness.

[0030] Specifically, the heat sealing plate 7 is provided with a temperature sensor 35 , and the temperature sensor 35 is used to monitor the temperature of the heat sealing plate 7 in real time.

[0031] In order to improve the working stability and position accuracy of the elastic member 13, a fixing hole is recessed in the bottom wall of the heat insulation board 6 and / or the cavity 9, and the top of the elastic member 13 extends into the fixing hole.

[0032] Preferably, the elastic member 13 is a spring.

[0033] Specifically, the lifting drive mechanism 2 can adopt an existing linear drive module, which will not be described in detail here.

[0034] All technical features in this embodiment can be freely combined according to actual needs.

[0035] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A soft blister vacuum sealing device, characterized in that: The invention comprises a support (1), an upper sealing mechanism arranged on the top of the support (1), a lower sealing mechanism connected to the support (1) in a lifting and sliding manner and located below the upper sealing mechanism, and a lifting and driving mechanism (2) installed at the bottom of the support (1) and used for driving the lower sealing mechanism to approach or move away from the upper sealing mechanism. The upper sealing mechanism comprises an upper mold frame (3) connected to the top of the support (1), a top plate (4) installed at the top port of the upper mold frame (3), and an upper air intake valve installed on the bottom surface of the top plate (4). The upper mold frame (3) is provided with a cavity (9) and a lifting cavity (10) which are connected to the upper mold frame (3) from top to bottom. The upper mold frame (3) is provided with a cavity (9) and a lifting cavity (10) which are connected to the upper mold frame (3) from top to bottom. The upper mold frame (3) is provided with a cavity (9) and a lifting cavity (10) which are connected to the upper mold frame (3) from top to bottom. The upper mold frame (3) is provided with a cavity (9) and a lifting cavity (10) which are connected to the upper mold frame (3) from top to bottom. The upper mold frame (3) is provided with a heat insulation plate (6) which is installed on the bottom surface of the upper air bag (5). The heat sealing plate (7) is lifted and lowered in the lifting cavity (10). The outer wall of the heat sealing plate (7) is connected to the upper mold frame (3). The inner side wall of the lifting chamber (10) is arranged to form a film suction channel, the upper mold frame (3) is provided with an air suction nozzle (11) connected to the cavity (9), the bottom wall of the cavity (9) is provided with a plurality of guide pillars (12), the heat insulation plate (6) is provided with a plurality of guide holes, the plurality of guide pillars (12) are respectively slidably matched with the plurality of guide holes, a plurality of elastic members (13) are arranged between the heat insulation plate (6) and the bottom wall of the cavity (9), and the lower sealing mechanism includes a lifting member fixedly connected to the lifting end of the lifting drive mechanism (2) The invention relates to a lifting plate (14), a lower mold cavity plate (15) detachably connected to the top surface of the lifting plate (14), and a quick-release structure (16) connected between the lifting plate (14) and the lower mold cavity plate (15); the top surface of the lower mold cavity plate (15) is concavely provided with a plurality of mold cavities (17); the bottom wall of the mold cavities (17) is concavely provided with suction holes; a vacuum chamber (18) is arranged inside the lower mold cavity plate (15); and the lower mold cavity plate (15) is provided with a vacuum air nozzle (19) connected to the vacuum chamber (18).

2. A soft blister vacuum sealing device according to claim 1, characterized in that: The quick-release structure (16) comprises a locking column (20) and a screw member (21). The locking column (20) is mounted on the bottom surface of the lower mold cavity plate (15). The top surface of the lifting plate (14) is recessed with an insertion hole. The locking column (20) is inserted into the insertion hole. The side surface of the lifting plate (14) is recessed with a threaded hole. The threaded hole is connected to one side of the insertion hole. The screw member (21) is threadedly connected to the threaded hole. The inner end of the screw member (21) is provided with a cone (23). The side wall of the locking column (20) is recessed with a groove (22). The connection between the threaded hole and the insertion hole is arranged corresponding to the groove (22). The cone (23) can be snap-fitted with the groove (22).

3. A soft blister vacuum sealing device according to claim 2, characterized in that: The outer end of the screw rod (21) is provided with a handle (24), and the handle (24) is located outside the lifting plate (14).

4. A soft blister vacuum sealing device according to claim 1, characterized in that: The lifting plate (14) is mounted on a bottom plate (25) at the lifting end of the lifting drive mechanism (2), a movable plate (26) is lifted and arranged above the bottom plate (25), a lower air bag (27) is arranged between the bottom plate (25) and the movable plate (26), and a lower air nozzle (28) is mounted on the bottom plate (25) and communicated with the lower air bag (27). The movable plate (26) is lifted and slidably connected to the bottom plate (25) via a guide assembly (29), and the lower mold cavity plate (15) is mounted on the top surface of the movable plate (26).

5. The soft blister vacuum sealing device according to claim 1, characterized in that: The soft blister vacuum sealing device also includes a base (31) and a position adjustment mechanism (30) installed on the base (31), and the bracket (1) is installed on the adjustment end of the position adjustment mechanism (30).

6. A soft blister vacuum sealing device according to claim 1, characterized in that: A stud (32) is provided at the top of the bracket (1), and the stud (32) is threadedly connected to an upper nut (33) and a lower nut (34). The upper mold frame (3) is provided with a through hole, and the stud (32) passes through the through hole. The upper mold frame (3) is located between the upper nut (33) and the lower nut (34).

7. The soft blister vacuum sealing device according to claim 1, characterized in that: The heat sealing plate (7) is provided with a temperature sensor (35).

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