A device for vacuum sealing of a bag within a paper tube

Abstract

This utility model belongs to the field of vacuum sealing technology for pharmaceutical paper tube inner film bags, and discloses a vacuum sealing device for pharmaceutical paper tube inner film bags, including an operating table; the surface of the operating table is equipped with a vacuum positioning component, which includes an arc-shaped plate one installed on the upper surface of the operating table, an arc-shaped plate two disposed above the arc-shaped plate one, a connecting plate for vacuum positioning, a vacuum pipe, a vacuum pump, an adjusting plate, a hinge seat one, a linkage plate one, a linkage plate two, a drive plate, a lower pressure plate, and a hinge seat two; the surface of the arc-shaped plate one is equipped with a drive stabilizing component. This utility model has the advantages of being able to perform positioning processing during the vacuum sealing process of pharmaceutical paper tube inner film bags, avoiding the pulling force of negative pressure on the pharmaceutical paper tube during vacuuming, which would cause the paper tube to shift laterally or axially on the platform, reducing the production of defective products and lowering production costs.

Description

Technical Field

[0001] This utility model belongs to the field of vacuum technology for pharmaceutical paper tube inner film bags, specifically a vacuum sealing device for pharmaceutical paper tube inner film bags. Background Technology

[0002] In the pharmaceutical packaging industry, pharmaceutical paper tubes are widely used for containing various solid pharmaceuticals (such as tablets and capsules) or pharmaceutical excipients due to their excellent moisture-proof, light-proof, and environmentally friendly properties. To further ensure the stability of medicines during storage and transportation and to prevent moisture, oxidation, or microbial contamination, an inner film bag is usually placed inside the pharmaceutical paper tube, and the inner film bag is treated with a vacuum sealing process to isolate the external environment from the medicine inside the bag. This process relies on a vacuum sealing device for the inner film bag of the pharmaceutical paper tube.

[0003] Currently, the core functions of existing vacuum sealing devices for pharmaceutical paper tube inner film bags are mainly focused on vacuuming and heat sealing the inner film bags. However, there are obvious design flaws in the critical pharmaceutical paper tube positioning process, which makes it impossible to achieve stable and accurate positioning of the paper tube.

[0004] This makes the paper tubes prone to shifting during processing. Most existing devices do not have a dedicated positioning mechanism designed for the cylindrical structure of pharmaceutical paper tubes. They simply use a conveyor track or placement platform to support the paper tubes. When the device performs a vacuum operation, the negative pressure generated by the vacuum pump will exert a pulling force on the inner membrane bag, which will cause the paper tube to move laterally or axially on the platform, resulting in a large number of defective products and increasing production costs. At the same time, manual inspection of defective products and rework further reduce production efficiency.

[0005] Therefore, a vacuum sealing device for the inner membrane bag of a pharmaceutical paper tube is proposed to address the above problems. Summary of the Invention

[0006] To address the problems mentioned in the background art, this utility model provides a vacuum sealing device for the inner film bag of a pharmaceutical paper tube. This device can perform positioning processing during the vacuum sealing process of the inner film bag of the pharmaceutical paper tube, avoiding the pulling force of negative pressure on the pharmaceutical paper tube during vacuuming, which would cause the paper tube to shift laterally or axially on the platform, thereby reducing the production of defective products and lowering production costs.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a vacuum sealing device for the inner film bag of a pharmaceutical paper tube, including an operating table;

[0008] The surface of the operating table is equipped with a vacuum positioning assembly. The vacuum positioning assembly includes an arc plate one installed on the upper surface of the operating table, an arc plate two disposed above the arc plate one, a connecting plate for vacuum positioning, a vacuum pipe, a vacuum pump, an adjusting plate, a hinge seat one, a linkage plate one, a linkage plate two, a drive plate, a lower pressure plate, and a hinge seat two.

[0009] A drive stabilization assembly is installed on the surface of the first arc plate. The drive stabilization assembly includes a movable plate symmetrically installed on the surface of the second arc plate, a stabilizing rod slidably connected in a through hole on the surface of the movable plate, and a support plate for fixed support.

[0010] Preferably, the connecting plate is installed on the outer side of the first arc-shaped plate, the vacuum pump is installed on one side surface of the connecting plate, the vacuum pipe is installed on the other side surface of the connecting plate and is connected to the vacuum pump, the adjusting plate is installed on the upper surface of the second arc-shaped plate, two hinge seats are symmetrically installed on the upper surface of the adjusting plate, the first linkage plate is hinged to the surface of the first hinge seat, the second linkage plate is hinged to one end of the first linkage plate, the two ends of the driving plate are respectively hinged to the two first linkage plates, the lower pressure plate is hinged between the other ends of the two driving plates, the two second hinge seats are symmetrically arranged above the second arc-shaped plate, and one end of the second linkage plate is hinged to the second hinge seat.

[0011] Preferably, both the first arc-shaped plate and the second arc-shaped plate have arc-shaped grooves on their surfaces.

[0012] Preferably, a hydraulic rod is provided above the lower pressure plate, and the telescopic end of the hydraulic rod is connected to the lower pressure plate.

[0013] Preferably, the support plate is disposed above the operating table, and both ends of the stabilizer rod pass through the movable plate and are respectively connected to the support plate and the operating table.

[0014] Preferably, the hydraulic rod is mounted on the upper surface of the support plate.

[0015] Preferably, the two hinge seats are symmetrically mounted on the lower surface of the support plate.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This utility model incorporates a vacuum positioning component. By using arc-shaped plate one, arc-shaped plate two, linkage plate one, linkage plate two, and a drive plate in cooperation, arc-shaped plate one and arc-shaped plate two are closed and clamped together, fixing the paper tube within the annular positioning space formed by the two arc-shaped plates. This solves the problem of paper tube displacement caused by the lack of a positioning structure in existing devices. During vacuum, the inner film bag is pulled by negative pressure and will not cause the paper tube to shift, ensuring accurate sealing and avoiding the risk of medicine getting damp due to sealing deviation.

[0018] 2. By setting up a drive stabilization component and sliding cooperation between the moving plate and the stabilizing rod, the movement direction of the second arc plate is restricted, so that the second arc plate moves only vertically, avoiding the second arc plate from shifting during the clamping process, and greatly improving the stability of the device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the first structure of the adjusting plate and hinge seat of this utility model;

[0021] Figure 3 This is a schematic diagram of the vacuum positioning component of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the linkage plate 2 and the hinge seat 1 of this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the vacuum pipe and vacuum pump of this utility model.

[0024] In the diagram: 1. Control panel; 2. Vacuum positioning assembly; 21. Arc plate one; 22. Arc plate two; 23. Connecting plate; 24. Vacuum pipe; 25. Vacuum pump; 26. Adjusting plate; 27. Hinge seat one; 28. Linkage plate one; 29. ​​Drive plate; 210. Lower pressure plate; 211. Linkage plate two; 212. Hinge seat two; 213. Hydraulic rod; 3. Drive stabilizing assembly; 31. Moving plate; 32. Stabilizing rod; 33. Support plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figures 1 to 5As shown, this utility model provides a vacuum sealing device for the inner film bag of a pharmaceutical paper tube, including an operating table 1;

[0027] The surface of the operating table 1 is equipped with a vacuum positioning assembly 2. The vacuum positioning assembly 2 includes an arc plate 21 installed on the upper surface of the operating table 1, an arc plate 22 set above the arc plate 21, a connecting plate 23 for vacuum positioning, a vacuum pipe 24, a vacuum pump 25, an adjusting plate 26, a hinge seat 27, a linkage plate 28, a linkage plate 211, a drive plate 29, a lower pressure plate 210, and a hinge seat 212.

[0028] A connecting plate 23 is installed on the outer side of the arc-shaped plate 21. A vacuum pump 25 is installed on one side surface of the connecting plate 23. A vacuum pipe 24 is installed on the other side surface of the connecting plate 23 and is connected to the vacuum pump 25. An adjusting plate 26 is installed on the upper surface of the arc-shaped plate 22. Two hinge seats 27 are symmetrically installed on the upper surface of the adjusting plate 26. A linkage plate 28 is hinged to the surface of the hinge seat 27. A linkage plate 211 is hinged to one end of the linkage plate 28. Both ends of the drive plate 29 are hinged to the two linkage plates 28 respectively. A lower pressure plate 210 is hinged between the other ends of the two drive plates 29. Two hinge seats 212 are symmetrically arranged above the arc plate 22, and one end of the linkage plate 211 is hinged to the hinge seat 212. By setting up the coordinated use of the arc plate 21, arc plate 22, linkage plate 28, linkage plate 211, and drive plate 29, the arc plate 21 and arc plate 22 are closed and clamped, fixing the paper tube in the annular positioning space formed by the two arc plates. This solves the problem of paper tube displacement caused by the lack of positioning structure in the existing device. When the inner film bag is pulled by negative pressure during vacuum, it will not cause the paper tube to shift, ensuring accurate sealing position and avoiding the risk of medicine getting damp due to sealing deviation.

[0029] Both the surface of the arc plate 1 21 and the arc plate 22 are provided with arc grooves. Compared with the planar bearing structure of the existing device, the contact area between the arc plate 1 21 and the arc plate 22 and the paper tube can be increased, so as to achieve stable positioning.

[0030] A hydraulic rod 213 is provided above the lower pressure plate 210. The telescopic end of the hydraulic rod 213 is connected to the lower pressure plate 210. The clamping structure needs to be manually driven to solve the problems of low efficiency and uneven force of manual operation in the existing device.

[0031] A drive stabilization assembly 3 is installed on the surface of the arc plate 21. The drive stabilization assembly 3 includes a movable plate 31 symmetrically installed on the surface of the arc plate 22, a stabilizing rod 32 slidably connected in a through hole on the surface of the movable plate 31, and a support plate 33 for fixed support.

[0032] The support plate 33 is positioned above the operating table 1. Both ends of the stabilizing rod 32 pass through the moving plate 31 and are connected to the support plate 33 and the operating table 1 respectively. The sliding cooperation between the moving plate 31 and the stabilizing rod 32 restricts the movement direction of the arc plate 22, so that the arc plate 22 moves only vertically, avoiding the arc plate 22 from shifting during the clamping process, and greatly improving the stability of the device.

[0033] The hydraulic rod 213 is installed on the upper surface of the support plate 33 and can be perpendicularly aligned with the lower pressure plate 210, thus shortening the power transmission path.

[0034] Two hinge seats 212 are symmetrically installed on the lower surface of the support plate 33, thereby fixing the position of the hinge seats 212.

[0035] Among them, structures such as the evacuation pipe 24, the evacuation pump 25, and the hydraulic rod 213 are existing technologies, and their working principles are well-known technologies. The appropriate model is selected according to the actual use.

[0036] Working principle and process: The pharmaceutical paper tube with the inner film bag already fitted (the opening of the inner film bag is reserved to the outside of the paper tube) is placed in the arc groove on the surface of the arc plate 21. The curvature of the arc groove is adapted to the outer wall of the paper tube, which initially restricts the lateral displacement of the paper tube. At the same time, it is ensured that the opening of the inner film bag covers the port of the vacuum tube 24 (the vacuum tube 24 is installed on the side of the connecting plate 23 facing the paper tube, and the connecting plate 23 is fixed on the outer side of the arc plate 21, and the port position matches the height of the paper tube opening), in preparation for subsequent vacuuming.

[0037] When the hydraulic rod 213 is activated, it receives a control signal and begins to retract, pushing the lower pressure plate 210 downwards. The two ends of the lower pressure plate 210 are hinged to two drive plates 29. As the lower pressure plate 210 moves downwards, the drive plates 29 drive the linkage plates 28 at both ends to move synchronously. One end of the linkage plate 28 is hinged to the hinge seat 27 (fixed on the surface of the adjusting plate 26 on the arc plate 22), and the other end is hinged to the linkage plate 211. When the linkage plate 28 is pulled by the drive plate 29, it rotates downwards around the hinge seat 27, and at the same time pulls the linkage plate 211 to rotate synchronously around the hinge seat 212 (fixed on the lower surface of the support plate 33). Finally, the rotation of the linkage plate 28 drives the arc plate 22 to move downwards in the vertical direction until the arc groove on the surface of the arc plate 22 and the arc groove of the arc plate 21 are completely closed, clamping the pharmaceutical paper tube in the annular positioning space formed by the two arc grooves, thus achieving precise positioning of the paper tube.

[0038] During the downward pressing of the second arc plate 22, the movable plates 31 symmetrically installed on its surface move downward synchronously; the surface of the movable plate 31 has through holes, the stabilizing rod 32 passes through the through holes and is fixedly connected at both ends to the support plate 33 and the operating table 1 respectively, and the movable plate 31 slides along the axial direction of the stabilizing rod 32 to restrict the movement direction of the second arc plate 22 (only vertical up and down movement is allowed to avoid deviation).

[0039] After the paper tube is clamped and positioned, the vacuum pump 25 is started. The vacuum pump 25 uses the vacuum pipe 24 on the connecting plate 23 to vacuum the inner film bag in the closed space formed by the arc plate 1 21 and the arc plate 22. Because the paper tube is positioned and clamped, the inner film bag will not cause the paper tube to shift under the negative pressure. The vacuum pipe 24 can stably adsorb the opening of the inner film bag to ensure that the air inside the bag is fully extracted.

[0040] After processing, the hydraulic rod 213 begins to retract, pulling the lower pressure plate 210 upward; the lower pressure plate 210 drives the linkage plate 28 and linkage plate 211 to rotate in the opposite direction through the drive plate 29, and the arc plate 22 moves upward with the linkage plate 28, reopening with the arc plate 21.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vacuum sealing device for the inner film bag of a pharmaceutical paper tube, comprising an operating table (1); Its features are: The surface of the operating table (1) is equipped with a vacuum positioning assembly (2). The vacuum positioning assembly (2) includes an arc plate one (21) installed on the upper surface of the operating table (1), an arc plate two (22) set above the arc plate one (21), a connecting plate (23), a vacuum pipe (24), a vacuum pump (25), an adjusting plate (26), a hinge seat one (27), a linkage plate one (28), a linkage plate two (211), a drive plate (29), a pressure plate (210), and a hinge seat two (212). The surface of the first arc plate (21) is equipped with a drive stabilization assembly (3). The drive stabilization assembly (3) includes a movable plate (31) symmetrically installed on the surface of the second arc plate (22), a stabilizing rod (32) slidably connected in a through hole on the surface of the movable plate (31), and a support plate (33) for fixed support.

2. The vacuum sealing device for the inner film bag of a pharmaceutical paper tube according to claim 1, characterized in that: The connecting plate (23) is installed on the outer side of the arc plate one (21), the vacuum pump (25) is installed on one side surface of the connecting plate (23), the vacuum pipe (24) is installed on the other side surface of the connecting plate (23), and the vacuum pipe (24) is connected to the vacuum pump (25). The adjusting plate (26) is installed on the upper surface of the arc plate two (22), and the two hinge seats one (27) are symmetrically installed on the upper surface of the adjusting plate (26). The linkage plate one (27) 8) The hinge is connected to the surface of the first hinge seat (27), the second linkage plate (211) is hinged to one end of the first linkage plate (28), the two ends of the drive plate (29) are respectively hinged to the two first linkage plates (28), the lower pressure plate (210) is hinged between the other ends of the two drive plates (29), the two second hinge seats (212) are symmetrically arranged above the second arc plate (22), and one end of the second linkage plate (211) is hinged to the second hinge seat (212).

3. The vacuum sealing device for the inner film bag of a pharmaceutical paper tube according to claim 1, characterized in that: Both the surface of the first arc plate (21) and the second arc plate (22) are provided with arc grooves.

4. The vacuum sealing device for the inner film bag of a pharmaceutical paper tube according to claim 1, characterized in that: A hydraulic rod (213) is provided above the lower pressure plate (210), and the telescopic end of the hydraulic rod (213) is connected to the lower pressure plate (210).

5. The vacuum sealing device for the inner film bag of a pharmaceutical paper tube according to claim 1, characterized in that: The support plate (33) is positioned above the operating table (1), and both ends of the stabilizing rod (32) pass through the moving plate (31) and are connected to the support plate (33) and the operating table (1) respectively.

6. The vacuum sealing device for the inner film bag of a pharmaceutical paper tube according to claim 4, characterized in that: The hydraulic rod (213) is mounted on the upper surface of the support plate (33).

7. The vacuum sealing device for the inner film bag of a pharmaceutical paper tube according to claim 1, characterized in that: Two of the hinge seats (212) are symmetrically mounted on the lower surface of the support plate (33).

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