Sealing equipment for medicine bag

Abstract

The invention provides sealing equipment for a medicine bag, and belongs to the technical field of packaging equipment. The sealing device solves the technical problem that an existing sealing device of a medicine bag cannot exhaust air in the medicine bag. The sealing equipment for the medicine bag comprises a fixing support, a hanging bag conveying mechanism, a quantitative material guiding mechanism, a cover placing mechanism, a cover screwing mechanism and an exhaust mechanism are arranged on the fixing support, the exhaust mechanism is located below the cover screwing mechanism, and after the exhaust mechanism and the cover screwing mechanism work at the same time to exhaust gas, the screwing sealing process of the cover screwing mechanism is conducted. The procedures of the exhaust mechanism and the cap screwing mechanism and the procedures of the quantitative material guiding mechanism are conducted at the same time, and the procedures of the hanging bag conveying mechanism and the cap placing mechanism are conducted at the same time. The liquid medicine bagging process is more efficient and convenient, and the quality of the filled liquid medicine is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of packaging equipment, in particular to a sealing device for medicine bags. Background Art

[0002] In order to facilitate users to carry, the existing bags with self-priming nozzles are used to fill the liquid medicine. The bags with self-priming nozzles can reduce the waste of liquid medicine when opening the bags and ensure that the medicine bags are clean and tidy.

[0003] In the prior art, there is a multifunctional medicine filling machine with application publication number CN112937944A, which integrates multiple processing steps of conveying, guiding, capping and cap tightening, making the medicine bagging process more efficient and convenient, and also making the medicine bags more orderly during the transmission process, avoiding material guiding errors, thereby improving the material guiding accuracy of the medicine liquid. The above-mentioned multifunctional medicine filling machine can fill bags with self-priming nozzles, but after the above-mentioned multifunctional medicine filling machine completes the bagging of medicine liquid, there is too much residual air in the medicine bag, which reduces the quality of the medicine liquid in the medicine bag. How to reduce the air in the medicine bag and simultaneously complete multiple processing steps of conveying, guiding, capping and cap tightening, so that the medicine bagging process is more efficient and convenient and the quality of the loaded medicine liquid is guaranteed. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention aims to provide a sealing device for medicine bags.

[0005] The object of the present invention can be achieved through the following technical scheme: a sealing device for medicine bags, including a fixed bracket, on which are arranged a bag hanging and conveying mechanism, a quantitative material guiding mechanism, a capping mechanism and a capping mechanism, and also including an exhaust mechanism, wherein the exhaust mechanism is located below the capping mechanism, and the exhaust mechanism and the capping mechanism work simultaneously to exhaust the gas before the capping mechanism performs a screwing and sealing process, the exhaust mechanism and the capping mechanism perform the processes simultaneously with the quantitative material guiding mechanism, and the bag hanging and conveying mechanism and the capping mechanism perform the processes simultaneously.

[0006] In this solution, the bag hanging conveyor mechanism transports the bag to the workstation, the quantitative material guiding mechanism fills the bag, the cap placing mechanism covers the filled bag, and the capping mechanism seals and screws the bag. An exhaust mechanism is set below the capping mechanism, and the exhaust mechanism and the capping mechanism cooperate to exhaust the air in the bag, and then the bag and the lid are sealed and screwed together by the capping mechanism. The automatic control system controls the classification and completes multiple processing steps at the same time, reducing the air in the bag as soon as possible, saving the time for the liquid medicine to contact with too much air, making the liquid medicine bagging process more efficient and convenient, and ensuring the quality of the loaded liquid medicine.

[0007] Furthermore, the exhaust mechanism includes two exhaust plates that can be relatively closed, the lower part of the bag is located between the two exhaust plates, and the screw-on cover mechanism includes a locking cap, which can be away from or sleeved on the cover. The locking cap can be reciprocated up and down under the drive of the cylinder, hydraulic cylinder or motor to achieve being away from the cover or sleeved outside the cover. Before the locking cap and the cover are pre-screwed together, the locking cap is sleeved outside the cover to firstly use the two exhaust plates to tighten the bag inward to exhaust gas to prevent the cover from falling off, and then the cover is screwed together for sealing.

[0008] Furthermore, the exhaust mechanism comprises an exhaust fixing frame, an exhaust shaft is rotatably arranged on the exhaust fixing frame, the exhaust plate is fixed on the exhaust shaft, and one of the exhaust shafts is connected to a driving member, which is preferably a motor.

[0009] Furthermore, the two exhaust shafts are respectively fixed with gear parts that can mesh with each other, and the gear parts are located between the exhaust fixing frame and the exhaust plate. The two exhaust plates can be integrally or separately arranged with the gear parts. The exhaust plate, the gear part and the exhaust shaft are fixedly connected, and the rotation of the exhaust shaft causes the gear part to mesh and drive, and the meshing transmission of the gear part drives the exhaust plate to stably squeeze and discharge the air on the upper part of the bag toward the lower part of the bag, thereby ensuring the quality of the loaded liquid medicine.

[0010] Furthermore, the exhaust mechanism includes a drive shaft and a first fixed frame and a second fixed frame arranged oppositely, and two exhaust plates are located between the first fixed frame and the second fixed frame, one of the exhaust plates is fixedly connected with a first guide rod and a first adjustment rod, the first guide rod is slidably connected with the first fixed frame, the first adjustment rod passes through the second fixed frame and is adjustably connected with the drive shaft, and the other exhaust plate is fixedly connected with a second guide rod and a second adjustment rod, the second guide rod is slidably connected with the second fixed frame, and the second adjustment rod passes through the second fixed frame and is adjustably connected with the drive shaft. The two exhaust plates are stably and parallelly squeezed toward the lower part of the bag through the exhaust mechanism, so that the air in the upper part of the bag is discharged, thereby ensuring the quality of the loaded liquid medicine.

[0011] Furthermore, the fixed bracket is fixedly connected with a circular plate, a turntable plate is arranged inside the circular plate, and a bag hanging slot is arranged on the turntable plate. The turntable plate rotates so that the bag hanging slot can be respectively and simultaneously located at the positions of the bag hanging conveying mechanism, the quantitative material guiding mechanism, the cap placing mechanism and the cap screwing mechanism. The bag is stably and orderly cyclically rotated on the turntable plate to realize the classification and simultaneous completion of multiple processing procedures such as conveying, material guiding, cap placing, exhausting and cap tightening. The structure is compact, and the bag hanging slot hangs the bag while cooperating with the cap screwing mechanism and the exhaust mechanism to better help the exhaust mechanism to exhaust the gas in the bag and then seal the packaging belt.

[0012] Furthermore, the cover placing mechanism includes a vibration plate, which is fixed on a fixed bracket and higher than a turntable plate, and is connected to a cover guide groove, and a cover placing assembly is fixedly connected to one end of the cover guide groove away from the vibration plate. The vibration plate can guide the covers into the cover guide groove in an orderly manner and in the same direction, and the covers slide from the cover guide groove to the cover placing assembly.

[0013] Furthermore, the cover placing assembly includes a cover placing plate, which is rotatably fixedly connected to the cover guide groove, and one end of the cover placing plate abuts against the outer peripheral side of the cover. As the cover falls according to the inclined cover guide groove, one end of the cover placing plate abuts against the outer peripheral side of the cover, so that the opening of the cover is inclined relative to the bag opening of the bag. When the turntable plate rotates and drives the bag to pass, the bag can hook the cover and press the cover through the rotatable cover placing plate, ensuring that the cover and the bag are covered smoothly and stably, improving the sorting quality of the air supply and exhaust process, reducing the cover from falling during the rotation, conveying and exhausting process, affecting the quality of the liquid medicine, and improving the bagging efficiency and the safety of the liquid medicine.

[0014] Furthermore, the cover plate includes a first connection part and a second connection part connected in a bent shape, a rotating fixed part is fixedly connected between the first connection part and the second connection part, the rotating fixed part is rotatably fixed on the guide cover groove through a rotating shaft, a fixing rod is fixedly arranged on the guide cover groove relative to the first connection part, the fixing rod passes through the first connection part and is fixedly connected to the limit block, a reset spring is sleeved on the fixing rod, the reset spring is located between the first connection part and the guide cover groove, and the end of the second connection part away from the first connection part is rotatably fixedly connected to a rotating wheel. This structure can make the cover and the bag cover smoothly and stably cover, improve the sorting quality of the air supply and exhaust process, reduce the cover from falling off during the rotation conveying and exhaust process, affect the quality of the liquid medicine, and improve the bagging efficiency and the safety of the liquid medicine.

[0015] Furthermore, the bag hanging conveying mechanism comprises a U-shaped conveying frame fixed on a fixed bracket, the end of the U-shaped conveying frame is arranged opposite to the bag hanging slot, the U-shaped conveying frame is located below the cover placing mechanism, and a bag pushing assembly is arranged on the U-shaped conveying frame, so that the overall structure is compact, the overall volume is reduced, and the bag pushing assembly can better push the bag.

[0016] Compared with the prior art, the technical effects of the present invention are as follows: 1. The air in the bag is exhausted by setting the exhaust mechanism and the capping mechanism, and then the bag and the lid are sealed and screwed together by the capping mechanism. The automatic control system controls the classification and completes multiple processing procedures at the same time, reducing the air in the bag as soon as possible, saving time, reducing the time that the liquid medicine is in contact with too much air, making the liquid medicine bagging process more efficient and convenient, and ensuring the quality of the loaded liquid medicine. 2. The bag is stably and orderly cyclically rotated on the turntable plate to realize the classification and completion of multiple processing procedures such as conveying, guiding, capping, exhausting and tightening the cap at the same time. The structure is compact. The bag hanging slot hangs the bag while cooperating with the capping mechanism and the exhaust mechanism to better help the exhaust mechanism to exhaust the gas in the bag and then seal the packaging belt. 3. The capping assembly can make the lid and the bag cover smoothly and stably, improve the sorting quality of the exhaust process, reduce the lid from falling during the rotating conveying and exhausting process, and affect the quality of the liquid medicine, and improve the bagging efficiency and the safety of the liquid medicine. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an overall stereogram of the first embodiment of the present invention.

[0018] Figure 2 It is a partial stereogram of the first embodiment of the present invention.

[0019] Figure 3 It is a schematic diagram of the bag hanging conveying mechanism and the cover placing mechanism of the first embodiment of the present invention.

[0020] Figure 4 It is a partial three-dimensional diagram of the cover placing mechanism of the first embodiment of the present invention. Figure 1 .

[0021] Figure 5 It is a partial three-dimensional diagram of the cover placing mechanism of the first embodiment of the present invention. Figure 2 .

[0022] Figure 6 It is a three-dimensional diagram of the cover placement assembly of the first embodiment of the present invention.

[0023] Figure 7 Schematic diagram of the capping mechanism according to the first embodiment of the present invention.

[0024] Figure 8 It is a three-dimensional diagram of the exhaust mechanism of the first embodiment of the present invention.

[0025] Fig. 9 It is a three-dimensional diagram of the exhaust mechanism of the second embodiment of the present invention.

[0026] Figure number marking: 1, fixed bracket; 11, circular ring plate; 12, turntable plate; 13, hanging bag slot; 2, hanging bag conveying mechanism; 21, U-shaped conveying frame; 3, quantitative material guiding mechanism; 4, cover placing mechanism; 41, vibration plate; 42, cover guide slot; 43, cover placing assembly; 431, cover placing plate; 4311, first connecting part; 4312, second connecting part; 4313, rotating fixed part; 432, fixing rod; 433, limit block; 434, reset spring; 435, rotating wheel; 436, rotating shaft; 5, capping mechanism; 51, locking cap ; 52. Screw rod; 53. Drive seat; 54. Drive cylinder; 55. Guide plate; 6. Exhaust mechanism; 61. Exhaust plate; 61a. Exhaust groove; 61b. Exhaust wall; 61c. Exhaust fixed section; 62. Exhaust fixed frame; 63. Exhaust shaft; 64. Driving member; 65. Gear part; 66. Drive shaft; 67. First fixed frame; 68. Second fixed frame; 69. First guide rod; 610. First adjusting rod; 611. Second guide rod; 612. Second adjusting rod; 7. Bag; 8. Cover; 9. Bag pushing assembly; 91. Push rod. DETAILED DESCRIPTION

[0027] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0028] It should be noted that the descriptions of the present invention regarding directions such as “up”, “down”, “left”, “right”, “top” and “bottom” are all defined based on the relationships between the orientations or positions shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device must be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0029] Embodiment 1: According to Figures 1 to 8 As shown, a sealing device for medicine bags includes a fixed bracket 1, a bag hanging conveying mechanism 2, a quantitative material guiding mechanism 3, a cap placing mechanism 4 and a cap screwing mechanism 5. The fixed bracket 1 is composed of a support plate and a support column, wherein the fixed bracket 1 includes a fixedly connected circular plate 11, a turntable plate 12 is relatively arranged inside the circular plate 11, and a bag hanging slot 13 is arranged on the turntable plate 12. The bag hanging slot 13 and the working positions of the bag hanging conveying mechanism 2, the quantitative material guiding mechanism 3, the cap placing mechanism 4 and the cap screwing mechanism 5 are relatively arranged, so that the bag 7 can be stably and orderly cyclically rotated on the turntable plate 12 to realize the classification and simultaneous completion of multiple processing procedures such as conveying, guiding, cap placing and cap tightening, and the structure is compact.

[0030] The bag hanging conveying mechanism 2 conveys the bag 7 to the bag hanging slot 13. The bag hanging conveying mechanism 2 mainly includes a conveying frame and a bag pushing assembly 9, wherein the conveying frame includes a vertical conveying frame and a horizontally arranged U-shaped conveying frame 21. The vertical conveying frame is convenient for the staff to stand and hang the bag. The end of the U-shaped conveying frame 21 is arranged opposite to the bag hanging slot 13, the U-shaped conveying frame 21 is located below the cover placing mechanism 4, and the bag pushing assembly 9 is arranged on the U-shaped conveying frame 21. The bag pushing assembly 9 has a reciprocating push rod 91, which can be forced to rotate to the highest position by the bag 7 when moving to the right, and then falls behind the next group of bags 7 and moves to the left to push. The bag hanging conveying mechanism 2 and the cover placing mechanism 4 are superimposed and placed to make the overall structure compact and reduce the overall volume. The bag pushing assembly 9 better pushes the bag 7 to prevent the bag hanging slot 13 at the relative position of the U-shaped conveying frame 21 from not hanging the bag 7 in time, resulting in idling.

[0031] The quantitative material guiding mechanism 3 is fixedly arranged above the turntable plate 12 by the fixed bracket 1. Since the quantitative material guiding mechanism 3 is purchased from outside, its internal structure is not described. The quantitative material guiding mechanism 3 mainly guides a quantitative amount of liquid medicine into the bag 7. The filled bag 7 is then transported to the station of the capping mechanism 4 by the turntable plate 12.

[0032] like Figures 3 to 6 As shown, the cover placing mechanism 4 includes a vibration plate 41, which is fixed on the fixed bracket 1 and higher than the turntable plate 12. The vibration plate 41 is connected to a cover guide groove 42, and a cover placing assembly 43 is fixedly connected to one end of the cover guide groove 42 away from the vibration plate 41. The vibration plate 41 can guide the covers 8 into the cover guide groove 42 in an orderly and unidirectional manner, and slide from the cover guide groove 42 to the cover placing assembly 43.

[0033] The cover placing assembly 43 includes a cover placing plate 431, which is rotatably fixedly connected to the cover guide groove 42, and one end of the cover placing plate 431 is against the outer peripheral side of the cover 8. As the cover 8 falls according to the inclined cover guide groove 42, one end of the cover placing plate 431 is against the outer peripheral side of the cover 8, so that the opening of the cover 8 is inclined relative to the bag opening of the bag 7. When the turntable plate 12 rotates to drive the bag 7 to pass, the bag 7 can hook the cover 8 and press the cover 8 through the rotatable cover placing plate 431, ensuring that the cover 8 and the bag 7 are covered smoothly and stably, improving the sorting quality of the air-conditioning process, reducing the cover 8 from falling during the rotating conveying and air-conditioning process, affecting the quality of the liquid medicine, and improving the bagging efficiency and the safety of the liquid medicine.

[0034] The cover plate 431 includes a first connection part 4311 and a second connection part 4312 connected in a bent shape, a rotating fixed part 4313 is fixedly connected between the first connection part 4311 and the second connection part 4312, and the rotating fixed part 4313 is rotatably fixed on the guide cover groove 42 through a rotating shaft 436. A fixing rod 432 is fixedly arranged on the guide cover groove 42 relative to the first connection part 4311, and the fixing rod 432 passes through the first connection part 4311 and is fixedly connected to the limit block 433. A reset spring 434 is sleeved on the fixing rod 432, and the reset spring 434 is located between the first connection part 4311 and the guide cover groove 42. The end of the second connection part 4312 away from the first connection part 4311 is rotatably fixedly connected to a rotating wheel 435. This structure can make the cover 8 and the bag 7 cover smoothly and stably, improve the sorting quality of the air supply and exhaust process, reduce the cover 8 from falling off during the rotation conveying and exhaust process, and affect the quality of the liquid medicine, and improve the bagging efficiency and the safety of the liquid medicine.

[0035] like Figure 2 and Figure 7 As shown, the capping mechanism 5 is fixedly arranged above the turntable plate 12 by the fixing bracket 1, wherein the capping mechanism 5 includes a locking cap 51, and the locking cap 51 can be away from or sleeved on the cover 8. The locking cap 51 can be reciprocated up and down under the drive of the cylinder, hydraulic cylinder or motor to achieve being away from the cover 8 or sleeved outside the cover 8. In order to make the locking cap 51 better cooperate with the exhaust mechanism, the capping mechanism 5 can be driven by a motor (the motor involved in the present invention can be a motor of different models), and the capping mechanism 5 includes an upper and lower driving assembly and a rotating driving assembly. The upper and lower driving assembly can drive the locking cap 51 to move up and down, and the rotating driving assembly can drive the locking cap 51 to rotate. The upper and lower driving assembly includes a screw 52, ​​a driving seat 53, a driving cylinder 54 and a guide plate 55. The driving cylinder 54 is fixedly sleeved outside the driving seat 53, and the driving cylinder 54 and the guide plate 55 can be slidably connected up and down. The driving seat 53 is sleeved outside the screw 52 and screw-matched. The screw 52 is driven to rotate by the motor, and the rotation of the screw 52 drives the driving seat 53 to rotate, and the driving seat 53 drives the driving cylinder 54 to slide up and down along the guide plate 55. The rotating driving assembly is fixed on the driving cylinder 54 as a whole, and the rotating driving assembly includes the locking cap 51 and a motor that provides the locking cap 51 with rotational power. The locking cap 51 cooperates with the exhaust mechanism to be sleeved on the outside of the cover 8 first, and then rotated and screwed after the air is exhausted.

[0036] like Figure 2 and Figure 8As shown, the sealing device also includes an exhaust mechanism 6, which is located below the capping mechanism 5. The exhaust mechanism 6 is also located below the turntable plate 12. After the exhaust mechanism 6 and the locking cap 51 cooperate to exhaust the gas, the screwing and sealing process of the capping mechanism 5 is carried out. The processes of the exhaust mechanism 6 and the capping mechanism 5 are carried out simultaneously with the process of the quantitative material guiding mechanism 3. During the rotation of the turntable plate 12, the processes of the bag hanging conveying mechanism 2 and the capping mechanism 4 are completed simultaneously. Multiple processes are carried out simultaneously in a classified manner to reduce the time that the liquid medicine is exposed to the air. The bag hanging slot 13 hangs the bag 7, and then the gas in the bag 7 is exhausted by the exhaust mechanism 6 through the capping mechanism 5 and the exhaust mechanism 6. Then the bag 7 is sealed and screwed through the capping mechanism 5, so as to reduce the air in the bag 7 as soon as possible, reduce the time that the liquid medicine is in contact with too much air, make the liquid medicine bagging process more efficient and convenient, and ensure the quality of the loaded liquid medicine.

[0037] The exhaust mechanism 6 includes two exhaust plates 61 that can be relatively closed, and the lower part of the bag 7 is located between the two exhaust plates 61. Before the locking cap 51 and the lid 8 are pre-screwed together, the locking cap 51 is sleeved outside the hat, and the two exhaust plates 61 first tighten the bag 7 inward to exhaust gas to prevent the hat from falling off, and then the lid 8 and the bag 7 are screwed together and sealed by the locking cap 51. The exhaust mechanism 6 includes an exhaust fixing frame 62, and an exhaust shaft 63 is rotatably provided on the exhaust fixing frame 62. The exhaust plate 61 is fixed on the exhaust shaft 63, and one of the exhaust shafts 63 is connected to a driving member 64. The driving member 64 is preferably a motor. Gear parts 65 that can mesh with each other are fixedly provided on the two exhaust shafts 63, respectively, and the gear part 65 is located between the exhaust fixing frame 62 and the exhaust plate 61. The two exhaust plates 61 can be integral with or separately provided with the gear part 65. The exhaust plate 61, the gear part 65 and the exhaust shaft 63 are fixedly connected. The exhaust shaft 63 rotates to mesh the gear part 65. The meshing transmission of the gear part 65 drives the exhaust plate 61 to stably squeeze and discharge the air on the upper part of the bag 7 toward the lower part of the bag 7, thereby ensuring the quality of the loaded liquid medicine. After the motor drives one exhaust shaft 63 to rotate, it drives the other exhaust shaft 63 to rotate through the gear part 65. The two exhaust shafts 63 drive the exhaust plate 61 to tighten the bag 7 inward. Before the locking cap 51 is screwed on, it lightly abuts against the lid 8 to help the exhaust plate 61 to better discharge the gas in the bag 7. Then, the cap screwing mechanism 5 is sealed and screwed on. The exhaust plate 61 is in a flat plate shape, and includes an exhaust fixing section 61c, an exhaust groove 61a and an exhaust wall 61b. The exhaust fixing section 61c is used to be fixedly connected to the exhaust rotating shaft 63, and the exhaust groove 61a is located between the exhaust fixing section 61c and the exhaust wall 61b. When the bag 7 is hung on the bag hanging slot 13 and rotated between the exhaust mechanism 6 and the capping mechanism 5, the lower end of the bag 7 is located in the exhaust groove 61a of the two exhaust plates 61, and the middle of the bag 7 is located between the two exhaust walls 61b. The structure of the exhaust groove 61a and the exhaust wall 61b enables the exhaust mechanism to exhaust gas more easily and accurately.

[0038] Embodiment 2: Fig. 9 As shown, this embodiment is another implementation of the exhaust mechanism 6, the exhaust mechanism 6 includes a drive shaft 66 and a first fixed frame 67 and a second fixed frame 68 arranged opposite to each other, two exhaust plates 61 are located between the first fixed frame 67 and the second fixed frame 68, one of the exhaust plates 61 is fixedly connected with a first guide rod 69 and a first adjustment rod 610, the first guide rod 69 is slidably connected to the first fixed frame 67, the first adjustment rod 610 passes through the second fixed frame 68 and is adjustably connected to the drive shaft 66, and the other exhaust plate 61 is fixedly connected with a second guide rod 611 and a second adjustment rod 612, the second guide rod 611 is slidably connected to the second fixed frame 68, and the second adjustment rod 612 passes through the second fixed frame 68 and is adjustably connected to the drive shaft 66. The two exhaust plates 61 are stably and parallelly squeezed toward the lower part of the bag 7 through the exhaust mechanism 6, so that the air in the upper part of the bag 7 is discharged to ensure the quality of the loaded liquid medicine. The driving shaft 66 is fixedly provided with a first tooth portion and a second tooth portion, the first tooth portion and the first adjusting rod 610 are engaged in horizontal transmission, and the second tooth portion and the second adjusting rod 612 are engaged in horizontal transmission. The driving shaft 66, driven by the motor, drives the first adjusting rod 610 and the second adjusting rod 612 to move horizontally relative to each other at the same time, and the exhaust plate 61 is stably close to each other and clamps the bag 7 under the guidance of the first guide rod 69 and the second guide rod 611 respectively. The locking cap 51 lightly abuts against the cover 8 before being screwed on to help the exhaust plate 61 to better discharge the gas in the bag 7, and then the screw-on cover mechanism 5 is sealed and screwed on.

[0039] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope defined by the claims of the present invention.

Claims

1. A sealing device for medicine bags, comprising a fixed support (1), on which a bag hanging and conveying mechanism (2), a quantitative material guiding mechanism (3), a cap placing mechanism (4) and a cap screwing mechanism (5) are arranged, characterized in that: The device further comprises an exhaust mechanism (6), wherein the exhaust mechanism (6) is located below the capping mechanism (5). After the exhaust mechanism (6) and the capping mechanism (5) work simultaneously to exhaust the gas, the capping mechanism (5) performs a screwing and sealing process. The exhaust mechanism (6) and the capping mechanism (5) perform the processes of the quantitative material guiding mechanism (3) simultaneously, and the bag hanging conveying mechanism (2) and the cap placing mechanism (4) perform the processes simultaneously.

2. A sealing device for medicine bags according to claim 1, characterized in that: The exhaust mechanism (6) comprises two exhaust plates (61) that can be relatively closed, and the lower part of the bag (7) is located between the two exhaust plates (61). The screw cap mechanism (5) comprises a locking cap (51), and the locking cap (51) can be separated from or sleeved on the cover (8).

3. A sealing device for medicine bags according to claim 2, characterized in that: The exhaust mechanism (6) comprises an exhaust fixing frame (62), an exhaust rotating shaft (63) is rotatably provided on the exhaust fixing frame (62), the exhaust plate (61) is fixed on the exhaust rotating shaft (63), and one of the exhaust rotating shafts (63) is connected to a driving member (64).

4. A sealing device for medicine bags according to claim 3, characterized in that: Gear parts (65) that can mesh with each other are fixedly disposed on the two exhaust rotating shafts (63), and the gear parts (65) are located between the exhaust fixing frame (62) and the exhaust plate (61).

5. The sealing device for medicine bags according to claim 2, characterized in that: The exhaust mechanism (6) comprises a drive shaft (66) and a first fixing frame (67) and a second fixing frame (68) which are arranged opposite to each other. The two exhaust plates (61) are both located between the first fixing frame (67) and the second fixing frame (68). One of the exhaust plates (61) is fixedly connected to a first guide rod (69) and a first adjustment rod (610). The first guide rod (69) is slidably connected to the first fixing frame (67). The first adjustment rod (610) passes through the second fixing frame (68) and is adjustably connected to the drive shaft (66). The other exhaust plate (61) is fixedly connected to a second guide rod (611) and a second adjustment rod (612). The second guide rod (611) is slidably connected to the second fixing frame (68). The second adjustment rod (612) passes through the second fixing frame (68) and is adjustably connected to the drive shaft (66).

6. A sealing device for medicine bags according to any one of claims 1 to 5, characterized in that: The fixed bracket (1) is fixedly connected to a circular plate (11), a turntable plate (12) is arranged opposite to the circular plate (11), and a bag hanging slot (13) is arranged on the turntable plate (12). The turntable plate (12) rotates so that the bag hanging slot (13) can be respectively and simultaneously located at the working positions of the bag hanging conveying mechanism (2), the quantitative material guiding mechanism (3), the cap placing mechanism (4) and the cap screwing mechanism (5).

7. The sealing device for medicine bags according to claim 6, characterized in that: The cover placement mechanism (4) comprises a vibration plate (41), the vibration plate (41) being fixed on the fixed bracket (1) and higher than the turntable plate (12), the vibration plate (41) being connected to a cover guide groove (42), and the cover placement assembly (43) being fixedly connected to one end of the cover guide groove (42) away from the vibration plate (41).

8. The sealing device for medicine bags according to claim 7, characterized in that: The cover placement assembly (43) comprises a cover placement plate (431), the cover placement plate (431) being rotatably fixedly connected to the cover guide groove (42), and one end of the cover placement plate (431) abuts against the outer peripheral side surface of the cover (8).

9. The sealing device for medicine bags according to claim 8, characterized in that: The cover placing plate (431) comprises a first connecting portion (4311) and a second connecting portion (4312) connected in a bent shape, a rotatable fixing portion (4313) being fixedly connected between the first connecting portion (4311) and the second connecting portion (4312), the rotatable fixing portion (4313) being rotatably fixed to the guide cover groove (42) via a rotating shaft (436), a fixing rod (432) being fixedly arranged on the guide cover groove (42) relative to the first connecting portion (4311), the fixing rod (432) passing through the first connecting portion (4311) and then fixedly connected to the limit block (433), a return spring (434) being sleeved on the fixing rod (432), the return spring (434) being located between the first connecting portion (4311) and the guide cover groove (42), and a rotating wheel (435) being rotatably fixedly connected to one end of the second connecting portion (4312) away from the first connecting portion (4311).

10. The sealing device for medicine bags according to claim 6, characterized in that: The bag hanging conveying mechanism (2) comprises a U-shaped conveying frame (21) fixed on the fixed bracket (1), the end of the U-shaped conveying frame (21) is arranged opposite to the bag hanging slot (13), the U-shaped conveying frame (21) is located below the cover placing mechanism (4), and a bag pushing assembly (9) is arranged on the U-shaped conveying frame (21).

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