A packaging mechanism for packaging capsule aluminum foil plates
By incorporating a mechanical pre-compression mechanism and a pneumatic actuator into the capsule aluminum foil packaging system, the problem of poor adhesion between the aluminum foil and PVC film was solved, achieving efficient heat sealing and slitting, and improving sealing quality and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGMEI HUAYI (HEBEI) PHARM CO LTD
- Filing Date
- 2025-08-22
- Publication Date
- 2026-06-19
Smart Images

Figure CN224375983U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pharmaceutical packaging machinery technology, and in particular to a packaging mechanism for packaging aluminum foil plates for capsules. Background Technology
[0002] In the pharmaceutical industry, capsules are typically packaged using aluminum foil, a method that offers advantages such as good sealing performance and ease of storage and transportation. However, existing aluminum foil packaging systems for capsules have some shortcomings in their operation. For example, before the heat-sealing process between the aluminum foil and the PVC film, the adhesion between them may not be tight enough, easily leading to poor heat-sealing and incomplete sealing. Utility Model Content
[0003] The purpose of this invention is to provide a packaging mechanism for aluminum foil plates used to package capsules. By setting a mechanical pre-pressing mechanism, the capsule plastic shell substrate formed by aluminum foil and PVC film is pre-pressed and bonded before heat sealing, so that the two are bonded more tightly, improving the sealing effect of the subsequent heat sealing process and reducing the possibility of incomplete sealing.
[0004] To achieve the above objectives, this utility model provides a packaging mechanism for packaging capsule aluminum foil, including a frame and a PVC film conveying and forming device and a worktable arranged on the frame. The worktable is sequentially arranged with a capsule filling assembly, an aluminum foil conveying device, a mechanical pre-compression mechanism, a heat sealing device, a conveying assembly and a cutting device.
[0005] The mechanical pre-compression mechanism is located at the feed end of the heat sealing device and includes a fixed frame, a first support frame, a pressure roller, and a spring assembly. The fixed frame is fixedly connected to the worktable, the first support frame is connected to the fixed frame through the spring assembly, and the pressure roller is mounted on the first support frame and rotatably connected to the first support frame through a rolling bearing.
[0006] Preferably, the PVC film conveying and forming device includes a first support plate fixedly mounted on the frame and a PVC film roll, a first guide rod, a concave roller and a convex roller rotatably mounted on the first support plate. The concave roller is connected to a motor via a first belt, and the convex roller is connected to the concave roller via a second belt. Both the concave roller and the convex roller are provided with resistance heating wires, and the PVC film is heated and extruded to form a capsule plastic shell substrate.
[0007] Preferably, the filling capsule assembly includes a funnel and a discharge pipe. The funnel is connected to the frame via a second support frame, and the bottom of the funnel is connected to the discharge pipe. The bottom of the discharge pipe is positioned above the capsule plastic shell substrate.
[0008] Preferably, the aluminum foil conveying device includes a third support frame disposed on the workbench and an aluminum foil roll, a second guide rod, and a third guide rod disposed sequentially on the third support frame, wherein the second guide rod and the third guide rod are used to tighten the aluminum foil.
[0009] Preferably, the spring assembly includes a spring and an adjusting assembly. One end of the adjusting assembly is fixedly connected to the fixed frame, and the other end of the adjusting assembly is fixedly connected to the first support frame. The spring is sleeved on the adjusting assembly, and its two ends abut against the bottom of the fixed frame and the top of the first support frame, respectively. The adjusting assembly includes an upper fixed rod and a lower sliding sleeve, and the lower sliding sleeve is sleeved below the upper fixed rod.
[0010] Preferably, the heat sealing device includes a fourth support frame, a pressure plate, a first guide rod, and a first pneumatic actuator. The fourth support frame is disposed on the workbench. The first pneumatic actuator is disposed on the fourth support frame and one end of the first pneumatic actuator is fixedly connected to the fourth support frame via a connector. The other end of the first pneumatic actuator is fixedly connected to the pressure plate. One end of the first guide rod passes through the fourth support frame and is fixedly connected to the pressure plate. A resistance heating wire is disposed inside the pressure plate.
[0011] Preferably, the conveying assembly is disposed between the heat sealing device and the slitting device, and includes a transmission assembly, an upper roller and a lower roller. The transmission assembly is connected to the worktable through a transmission bracket. The central axis of the lower roller is connected to the power output end of the transmission assembly. The upper roller is correspondingly disposed above the lower roller and is rotatably connected to the transmission bracket.
[0012] Preferably, the slitting device includes a fifth support frame, a slitting plate, a second guide rod, and a second pneumatic actuator. The fifth support frame is disposed on the worktable. The second pneumatic actuator is disposed on the fifth support frame, and one end of the second pneumatic actuator is fixedly connected to the fifth support frame by a fastener. The other end of the second pneumatic actuator is fixedly connected to the slitting plate. One end of the second guide rod passes through the fifth support frame and is fixedly connected to the slitting plate. A groove corresponding to the cutting tool is provided in the area of the worktable corresponding to the slitting plate.
[0013] The beneficial effects of this utility model are as follows:
[0014] (1) Unique advantages of the mechanical pre-compression mechanism: The spring assembly in the mechanical pre-compression mechanism works in conjunction with the pressure roller to automatically adjust the pressure according to the thickness of the aluminum foil and the plastic shell substrate of the capsule, ensuring that packaging materials of different specifications can be tightly bonded. This adaptive adjustment capability not only avoids material damage caused by excessive pressure, but also effectively removes the air between the two, laying a good foundation for the subsequent heat sealing process and greatly reducing the probability of poor sealing and aluminum foil wrinkles.
[0015] (2) Highly efficient and collaborative continuous production capacity: Each component is scientifically arranged in the order of PVC film forming, capsule filling, aluminum foil covering, pre-pressing, heat sealing, conveying, and slitting, forming a continuous automated production line. From the conveying and forming of PVC film to the slitting of the final product, each link is smoothly connected, reducing intermediate stops and material handling time, and greatly improving the packaging output per unit time.
[0016] (3) Precise and reliable PVC film forming: The PVC film conveying and forming device adopts a heating and extrusion method using concave and convex rollers. The resistance heating wire can provide stable heat, ensuring that the PVC film is heated evenly. At the same time, the motor drives the concave and convex rollers to rotate synchronously through belt drive, ensuring stable extrusion force and speed. This results in a regular shape and precise size of the formed capsule plastic shell substrate, providing a solid guarantee for the smooth filling of subsequent capsules and the stability of packaging quality. Moreover, the device has a simple structure, few parts, and is easy to install and maintain, reducing equipment maintenance costs and downtime.
[0017] (4) Stable and efficient heat sealing and slitting: The heat sealing device uses a first pneumatic actuator to drive the pressure plate, which can provide stable and adjustable pressure. Combined with the heat generated by the resistance heating wire inside the pressure plate, it can achieve rapid and firm heat sealing of aluminum foil and PVC film. The setting of the first guide rod ensures the verticality and stability of the pressure plate movement, avoids deviation during the heat sealing process, and improves the heat sealing quality. The slitting device also uses a second pneumatic actuator, which has a rapid action response and uniform slitting force. With the groove on the worktable, it can achieve precise slitting of the heat-sealed composite board, with neat cuts, avoiding problems such as burrs and tears during the slitting process, and improving the appearance quality of the finished product.
[0018] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the packaging mechanism for packaging capsules using aluminum foil sheets, as described in this utility model. Figure 1 ;
[0020] Figure 2 This is a schematic diagram of the packaging mechanism for packaging capsules using aluminum foil sheets, as described in this utility model. Figure 2 ;
[0021] Figure 3 This is a cross-sectional view of a packaging mechanism for packaging capsules using aluminum foil sheets, according to this utility model.
[0022] Figure 4 A cross-sectional view of the capsule component in this application;
[0023] Figure 5 This is a schematic diagram of the transmission component in this application;
[0024] Figure 6 This is a schematic diagram of the mechanical preloading mechanism in this application.
[0025] The components include: 1. Frame; 2. PVC film conveying and forming device; 201. PVC film roll; 202. First guide rod; 203. Convex roller; 204. Concave roller; 3. Filling capsule assembly; 301. Second support frame; 302. Funnel; 303. Discharge pipe; 4. Aluminum foil conveying device; 401. Third support frame; 402. Second guide rod; 403. Third guide rod; 404. Aluminum foil roll; 5. Mechanical pre-compression mechanism; 501. Fixing frame; 502. Spring; 503. First... Support frame; 504, pressure roller; 505, lower sliding sleeve; 506, upper fixed rod; 6, heat sealing device; 601, first pneumatic actuator; 602, pressure plate; 603, fourth support frame; 604, first guide rod; 7, slitting device; 701, second pneumatic actuator; 702, second guide rod; 703, fifth support frame; 704, slitting plate; 8, worktable; 9, conveying assembly; 901, transmission bracket; 902, lower roller; 903, upper roller; 904, transmission assembly. Detailed Implementation
[0026] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.
[0027] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0028] Example
[0029] like Figure 1-6As shown, a packaging mechanism for packaging capsule aluminum foil includes a frame 1 and a PVC film conveying and forming device 2 and a worktable 8 mounted on the frame 1. The worktable 8 is sequentially equipped with a capsule filling assembly 3, an aluminum foil conveying device 4, a mechanical pre-compression mechanism 5, a heat sealing device 6, a conveying assembly 9, and a slitting device 7. The mechanical pre-compression mechanism 5 is located at the feeding end of the heat sealing device 6 and includes a fixed frame 501, a first support frame 503, a pressure roller 504, and a spring 502 assembly. The fixed frame 501 is fixedly connected to the worktable 8, the first support frame 503 is connected to the fixed frame 501 through the spring 502 assembly, and the pressure roller 504 is mounted on the first support frame 503 and rotatably connected to the first support frame 503 through a rolling bearing.
[0030] The PVC film conveying and forming device 2 includes a first support plate fixedly mounted on the frame 1 and a PVC film roll 201, a first guide rod 202, a concave roller 204, and a convex roller 203 rotatably mounted on the first support plate. The concave roller 204 is connected to a motor via a first belt, and the convex roller 203 is connected to the concave roller 204 via a second belt. Both the concave roller 204 and the convex roller 203 are equipped with resistance heating wires. The PVC film is heated and extruded to form a capsule plastic shell substrate. The other end of the resistance heating wire is connected to an external power source via an electric slip ring.
[0031] The filling capsule assembly 3 includes a funnel 302 and a discharge pipe 303. The funnel 302 is connected to the frame 1 via a second support frame 301. The bottom of the funnel 302 is connected to the discharge pipe 303, and the bottom of the discharge pipe 303 is positioned above the capsule plastic shell substrate.
[0032] The aluminum foil conveying device 4 includes a third support frame 401 set on the workbench 8 and an aluminum foil roll 404, a second guide rod 402 and a third guide rod 403 set sequentially on the third support frame 401. The second guide rod 402 and the third guide rod 403 are used to tighten the aluminum foil.
[0033] The spring 502 assembly includes a spring 502 and an adjusting assembly. One end of the adjusting assembly is fixedly connected to the fixed frame 501, and the other end of the adjusting assembly is fixedly connected to the first support frame 503. The spring 502 is sleeved on the adjusting assembly, and its two ends abut against the bottom of the fixed frame 501 and the top of the first support frame 503, respectively. The adjusting assembly includes an upper fixed rod 506 and a lower sliding sleeve 505. The lower sliding sleeve 505 is sleeved below the upper fixed rod 506, and the two are slidably connected.
[0034] The heat sealing device 6 includes a fourth support frame 603, a pressure plate 602, a first guide rod 604, and a first pneumatic actuator 601. The fourth support frame 603 is mounted on the workbench 8. The first pneumatic actuator 601 is mounted on the fourth support frame 603, and one end of the first pneumatic actuator 601 is fixedly connected to the fourth support frame 603 via a connector. The other end of the first pneumatic actuator 601 is fixedly connected to the pressure plate 602. One end of the first guide rod 604 passes through the fourth support frame 603 and is fixedly connected to the pressure plate 602. A resistance heating wire is provided inside the pressure plate 602.
[0035] The conveying assembly 9 is located between the heat sealing device 6 and the slitting device 7, and includes a transmission assembly 904, an upper roller 903 and a lower roller 902. The transmission assembly 904 is connected to the worktable 8 through a transmission bracket 901. The central axis of the lower roller 902 is connected to the power output end of the transmission assembly 904. The upper roller 903 is correspondingly located above the lower roller 902 and is rotatably connected to the transmission bracket 901.
[0036] The slitting device 7 includes a fifth support frame 703, a slitting plate 704, a second guide rod 702, and a second pneumatic actuator 701. The fifth support frame 703 is mounted on the worktable 8. The second pneumatic actuator 701 is mounted on the fifth support frame 703, and one end of the second pneumatic actuator 701 is fixedly connected to the fifth support frame 703 by a fastener. The other end of the second pneumatic actuator 701 is fixedly connected to the slitting plate 704. One end of the second guide rod 702 passes through the fifth support frame 703 and is fixedly connected to the slitting plate 704. The area on the worktable 8 corresponding to the slitting plate 704 is provided with a groove corresponding to the cutting tool.
[0037] Work process:
[0038] PVC film is released from PVC film roll 201 and guided by first guide rod 202 to between concave roller 204 and convex roller 203. Resistance heating wires inside concave roller 204 and convex roller 203 heat the PVC film, while simultaneously pressing the PVC film to form a capsule plastic shell substrate. The capsule plastic shell substrate continues to be conveyed to below the filling capsule assembly 3, where capsules in funnel 302 fall into the capsule plastic shell substrate through discharge pipe 303. Aluminum foil is released from aluminum foil roll 404 and, after being tightened by second guide rod 402 and third guide rod 403, covers the capsule plastic shell substrate containing the capsules. Subsequently, both enter the mechanical pre-compression mechanism 5, where pressure roller 504, under the action of spring assembly 502, pre-compresses and bonds the aluminum foil and capsule plastic shell substrate. The pre-compressed composite board enters the heat-sealing device 6. The first pneumatic actuator 601 drives the pressure plate 602 to descend, and the resistance heating wire inside the pressure plate 602 heats up, heat-sealing the aluminum foil and the capsule plastic shell substrate together. The heat-sealed composite board is conveyed to the slitting device 7 by the upper roller 903 and lower roller 902 of the conveying assembly 9. The second pneumatic actuator 701 drives the slitting plate 704 to descend, slitting the composite board. The slitting finished products fall off or are collected.
[0039] Therefore, the present invention provides a packaging mechanism for packaging capsules using the above-mentioned structure. By setting up a mechanical pre-pressing mechanism, the capsule plastic shell substrate formed by the aluminum foil and PVC film is pre-pressed and bonded before heat sealing, so that the two are bonded more tightly, improving the sealing effect of the subsequent heat sealing process and reducing the possibility of incomplete sealing.
[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.
Claims
1. A packaging mechanism for packaging capsule aluminum foil sheets, characterized in that: The device includes a frame and a PVC film conveying and forming device and a worktable mounted on the frame. The worktable is sequentially equipped with a filling capsule assembly, an aluminum foil conveying device, a mechanical pre-compression mechanism, a heat sealing device, a conveying assembly, and a slitting device. The mechanical pre-compression mechanism is located at the feed end of the heat sealing device and includes a fixed frame, a first support frame, a pressure roller, and a spring assembly. The fixed frame is fixedly connected to the worktable, the first support frame is connected to the fixed frame through the spring assembly, and the pressure roller is mounted on the first support frame and rotatably connected to the first support frame through a rolling bearing.
2. The packaging mechanism for packaging capsule aluminum foil plates according to claim 1, characterized in that: The PVC film conveying and forming device includes a first support plate fixedly mounted on the frame and a PVC film roll, a first guide rod, a concave roller and a convex roller rotatably mounted on the first support plate. The concave roller is connected to a motor via a first belt, and the convex roller is connected to the concave roller via a second belt. Both the concave roller and the convex roller are equipped with resistance heating wires. The PVC film is heated and extruded to form a capsule plastic shell substrate.
3. The packaging mechanism for packaging capsule aluminum foil according to claim 2, characterized in that: The filling capsule assembly includes a funnel and a discharge pipe. The funnel is connected to the frame via a second support frame, and the bottom of the funnel is connected to the discharge pipe. The bottom of the discharge pipe is positioned above the capsule plastic shell substrate.
4. A packaging mechanism for packaging capsule aluminum foil plates according to claim 3, characterized in that: The aluminum foil conveying device includes a third support frame set on the workbench and an aluminum foil roll, a second guide rod, and a third guide rod arranged sequentially on the third support frame. The second guide rod and the third guide rod are used to tighten the aluminum foil.
5. A packaging mechanism for packaging capsule aluminum foil plates according to claim 4, characterized in that: The spring assembly includes a spring and an adjusting component. One end of the adjusting component is fixedly connected to the fixed frame, and the other end of the adjusting component is fixedly connected to the first support frame. The spring is sleeved on the adjusting component, and its two ends abut against the bottom of the fixed frame and the top of the first support frame, respectively. The adjusting component includes an upper fixed rod and a lower sliding sleeve, and the lower sliding sleeve is sleeved below the upper fixed rod.
6. A packaging mechanism for packaging capsule aluminum foil plates according to claim 5, characterized in that: The heat sealing device includes a fourth support frame, a pressure plate, a first guide rod, and a first pneumatic actuator. The fourth support frame is mounted on the workbench. The first pneumatic actuator is mounted on the fourth support frame, and one end of the first pneumatic actuator is fixedly connected to the fourth support frame via a connector. The other end of the first pneumatic actuator is fixedly connected to the pressure plate. One end of the first guide rod passes through the fourth support frame and is fixedly connected to the pressure plate. A resistance heating wire is provided inside the pressure plate.
7. A packaging mechanism for packaging capsule aluminum foil plates according to claim 6, characterized in that: The conveying assembly is disposed between the heat sealing device and the slitting device, and includes a transmission assembly, an upper roller and a lower roller. The transmission assembly is connected to the worktable through a transmission bracket. The central axis of the lower roller is connected to the power output end of the transmission assembly. The upper roller is correspondingly disposed above the lower roller and is rotatably connected to the transmission bracket.
8. A packaging mechanism for packaging capsule aluminum foil plates according to claim 7, characterized in that: The slitting device includes a fifth support frame, a slitting plate, a second guide rod, and a second pneumatic actuator. The fifth support frame is mounted on the worktable. The second pneumatic actuator is mounted on the fifth support frame, and one end of the second pneumatic actuator is fixedly connected to the fifth support frame via a fastener. The other end of the second pneumatic actuator is fixedly connected to the slitting plate. One end of the second guide rod passes through the fifth support frame and is fixedly connected to the slitting plate. A groove corresponding to the cutting tool is provided in the area on the worktable corresponding to the slitting plate.