A cooling forming apparatus for a blister pack machine

Abstract

This utility model discloses a cooling and forming device for a blister pack machine, including a cooling chamber and a cooling assembly and a water absorption assembly disposed within it. The cooling assembly includes an electric push rod and a hydraulic rod distributed vertically. A cavity shell is fixedly connected to the cooling assembly via the electric push rod, and a lifting mold with an outer shell is fixedly connected to the hydraulic rod. The interior of the outer shell has the same design shape as the exterior of the blister pack. A cooling air pipe is fixedly connected to the top of the cavity shell, and a partition and a closed plate that can slide relative to each other within a limited height are fixedly installed inside. A one-way exhaust rubber plug is provided on the outside. The water absorption assembly includes an extension plate, which suspends several water absorption blocks via a mounting plate. The extension plate is fixedly connected to the cavity shell. This device integrates cooling, leveling, and water absorption functions, improving the cooling efficiency of the blister pack while effectively preventing blister pack deformation and condensation residue, thus improving product quality.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical packaging technology, specifically a cooling and forming device for blister packaging machines. Background Technology

[0002] Blister packaging machines are key packaging equipment widely used in pharmaceuticals, food, electronic components and other fields. Their workflow typically includes heating, forming, filling, heat sealing and punching. After the plastic sheet (such as PVC, PP) or aluminum foil is heated and softened, and formed into a blister pack in a mold under positive or negative pressure, the formed blister pack is still at a high temperature and in a softened state, with an unstable physical form. It must undergo effective cooling and shaping before proceeding to the subsequent filling and sealing stages.

[0003] In the existing technology, the cooling of the formed blister is mostly done by setting up cooling tunnels in the conveying path or using fans for natural air cooling. Although these methods are simple in structure, they have obvious drawbacks: First, the cooling efficiency is low. In order to achieve sufficient cooling, a long cooling section is often required, which occupies a lot of equipment space.

[0004] CN115743781A discloses a cooling and leveling device for blister packs, including a hollow base, an assembly frame on top of the hollow base, an assembly shell inside the assembly frame, a leveling component mounted on the assembly shell, and a support base directly below the assembly shell with channels evenly distributed in multiple sets. A lower shell is mounted at the lower end of the hollow base, and the inner cavity of the lower shell communicates with the inner cavity of the hollow base. A first fan is installed inside the lower shell, and a cooler is located below the first fan, connected to the lower shell via a bracket. Through the cooperation of the support base and channels, blister packs can pass through and contact the inner cavity of the support base. Then, through the cooperation of the first fan and the cooler, cold air is blown onto the blister packs to cool them down. Simultaneously, the leveling cylinder compresses and flattens the blister packs, achieving a cooling and leveling effect without requiring excessive space in the blister pack machine. However, this patent still has the following problems in actual use:

[0005] During the cooling process of the above-mentioned device, the cold air is blown all over the raw material. In order to ensure the cooling efficiency, the wind speed needs to be guaranteed. However, the blister packs of the blister pack machine are generally made of aluminum foil, and the temperature of the aluminum foil is relatively high at this time. When subjected to rapid and large-area wind, it may cause the incompletely shaped blister packs or the soft aluminum foil strips to deform, which will affect subsequent production. Moreover, the large-area wind will also cause the cold air to diffuse naturally, affecting the cooling efficiency.

[0006] A cooling and forming device for a blister pack machine is proposed to address the problems mentioned above. Utility Model Content

[0007] The purpose of this invention is to provide a cooling and forming device for a blister pack machine, in order to solve the problem mentioned in the background art where, during the cooling process, the cold air is blown directly onto the raw material. To ensure cooling efficiency, the airflow speed needs to be maintained. However, the blister packs in the blister pack machine are generally made of aluminum foil, which is highly stable. When subjected to rapid and large-area airflow, the blister pack or aluminum foil strip may deform, thus affecting subsequent production. Furthermore, the large-area airflow can also cause the cold air to diffuse naturally, affecting the cooling efficiency.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a cooling and forming device for a blister pack machine, comprising a cooling chamber, wherein a cooling cavity is provided in the middle of the cooling chamber;

[0009] A cooling assembly is provided on one side of the interior of the cooling chamber, and a water absorption assembly is provided on the other side of the interior of the cooling chamber;

[0010] The cooling assembly includes an installation cavity inside the cooling chamber, a hydraulic rod is installed inside the installation cavity, a support plate is fixedly connected to the bottom end of the hydraulic rod, and a lifting mold is connected to the top end of the hydraulic rod.

[0011] The cooling assembly further includes an electric push rod fixedly installed on the top surface of the cooling chamber. The output end of the electric push rod is fixedly connected to a cavity shell. A cold air pipe is fixedly connected through the top of the cavity shell. A one-way exhaust rubber plug is fixedly installed on the outside of the cavity shell. A connecting rod is symmetrically slidably connected to the top of the cavity shell. A lifting column is fixedly connected to the top of the connecting rod by bolts. A sealing plate is fixedly connected to the bottom of the connecting rod.

[0012] The cavity shell has several air outlets at its bottom, and a partition and a support ring are fixedly connected inside the cavity shell.

[0013] Preferably, the support plate is fixedly connected to the inner wall of the mounting cavity, a plurality of outer shells are fixedly installed on the bottom surface of the lifting mold, and the position of the outer shells corresponds to the air outlet, and the partition is located between two closed plates.

[0014] Preferably, the cooling chamber has symmetrically arranged limiting cavities at the top inside, the lifting column is slidably connected to the inner top surface of the cooling chamber, the lifting column extends into the limiting cavity, and the top of the lifting column is fixedly connected to an anti-detachment block, which is slidably connected to the limiting cavity.

[0015] Preferably, the bottom surface of the sealing plate is in contact with the top surface of the supporting ring, and the top surface of the sealing plate is flush with the top surface of the partition. Furthermore, the sealing plate slides in contact with the inner wall of the cavity shell.

[0016] Preferably, the water-absorbing assembly includes an extension plate fixedly installed on one side of the cavity shell, an installation plate installed on the bottom surface of the extension plate, and a plurality of water-absorbing blocks fixedly connected to the bottom surface of the installation plate. A suspension column is fixedly connected to the center of the top surface of the installation plate. A hanging plate and a fixing plate are sleeved on the outside of the suspension column, and both the hanging plate and the fixing plate are fixedly connected to the suspension column. The hanging plate is located above the suspension column.

[0017] Preferably, a bending limiting plate is fixedly connected to the top surface of the extension plate, and a clearance groove is provided on one side of both the bending limiting plate and the extension plate. A screw hole is provided on the top surface of both the bending limiting plate and the fixed plate, and a limiting groove is provided between the bending limiting plate and the extension plate. A bolt is threadedly connected to the screw hole.

[0018] Preferably, the suspension column is slidably connected to the clearance groove, and the hanging plate is slidably connected to the limiting groove.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: This cooling and forming device for a blister pack machine uses an electric push rod and a hydraulic rod to precisely clamp and extrude the strip material into a flattened shape using a lifting mold and a hollow shell. The outer shell supports the blister pack to prevent deformation. A cooling efficiency is improved by forming an airflow channel control mechanism through connecting rods and other components. Precise cooling and auxiliary cooling are achieved simultaneously. The specific details are as follows:

[0020] 1. The cooling assembly, through the coordinated action of electric push rods and hydraulic rods, enables the lifting mold and cavity shell to precisely approach and clamp the strip material, achieving effective extrusion and leveling of the material surface and ensuring the flatness of the blister formation; the design of the outer shell cleverly accommodates and supports the blister, effectively preventing deformation of the not-yet-fully-formed blister during the subsequent blowing of cold air, thus ensuring the quality stability of the blister.

[0021] 2. Regarding cold air injection, a unique airflow channel control mechanism is formed through the cooperation of connecting rods, lifting columns, anti-detachment blocks, and limiting cavities. When the cavity shell descends, it automatically forms an airflow channel, allowing cold air to be precisely ejected from the air outlet and directly act on the blister, greatly improving cooling efficiency and accelerating the blister cooling and forming process. Moreover, the design of cold air leaking out from the gap in the initial position not only achieves pressure relief but also prevents a large amount of cold air from escaping, creating a semi-closed effect. At the same time, it cools the cavity shell, effectively preventing the material from reheating due to temperature conduction when extruding and flattening strip materials such as aluminum foil strips, further improving the cooling and forming effect.

[0022] 3. As the cavity shell descends, the extension plate pulls the mounting plate and absorbent block down, allowing the absorbent block to precisely insert into the intermittently delivered and stationary blister pack, ensuring a tight fit with the blister pack surface and effectively absorbing the trace amounts of condensate generated by the cooling components during the cooling process. This design avoids the impact of condensate on blister pack quality, ensuring the blister pack remains dry and clean, thus improving the overall product quality. Furthermore, the absorbent component's structural design is rational. The combination of bending limiting plates, clearance grooves, limiting grooves, and screw holes, along with the connection methods of suspension columns, hanging plates, and fixing plates, makes the replacement of the mounting plate and absorbent block very convenient. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the front cross-section structure of this utility model;

[0025] Figure 3 This is a schematic diagram of the cross-sectional structure of the hollow shell;

[0026] Figure 4 This is an exploded structural diagram of the extension plate and the mounting plate.

[0027] In the diagram: 1. Cooling chamber; 101. Cooling cavity; 2. Cooling assembly; 201. Mounting cavity; 202. Hydraulic rod; 203. Support plate; 204. Lifting mold; 2041. Outer shell; 205. Electric actuator; 206. Cavity shell; 2061. Air outlet; 2062. Partition plate; 2063. Lifting ring; 207. Cooling pipe; 208. One-way exhaust rubber plug; 209. Connecting rod; 2091. Sealing plate; 2092. Lifting column; 2093. Anti-detachment block; 2094. Limiting cavity; 3. Water absorption assembly; 301. Extension plate; 302. Mounting plate; 203. Water absorption block; 304. Suspension column; 305. Hanging plate; 306. Fixing plate; 307. Limiting plate; 308. Screw hole. Detailed Implementation

[0028] 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.

[0029] Please see Figures 1-4 The present invention provides a technical solution: a cooling and forming device for a blister pack machine, comprising a cooling chamber 1, wherein a cooling cavity 101 is provided in the middle of the cooling chamber 1;

[0030] A cooling assembly 2 is provided on one side of the interior of the cooling chamber 101, and a water absorption assembly 3 is provided on the other side of the interior of the cooling chamber 101;

[0031] The cooling assembly 2 includes an installation cavity 201 located inside the cooling chamber 1. A hydraulic rod 202 is installed inside the installation cavity 201. A support plate 203 is fixedly connected to the bottom end of the hydraulic rod 202, and a lifting mold 204 is connected to the top end of the hydraulic rod 202. The hydraulic rod 202 and the lifting mold 204, as well as the electric push rod 205 and the cavity shell 206, are all fixed with bolts and can be disassembled and replaced.

[0032] The cooling assembly 2 also includes an electric actuator 205 fixedly installed on the top surface of the cooling chamber 101. The output end of the electric actuator 205 is fixedly connected to a cavity shell 206. A cooling air pipe 207 is fixedly connected through the top of the cavity shell 206. A one-way exhaust rubber plug 208 is fixedly installed on the outside of the cavity shell 206. A connecting rod 209 is symmetrically slidably connected to the top of the cavity shell 206. A lifting column 2092 is fixedly connected to the top of the connecting rod 209 by bolts. A sealing plate 2091 is fixedly connected to the bottom of the connecting rod 209. Several air outlets 2061 are provided at the bottom of the cavity shell 206. The internal fixed connection of 6 includes a partition 2062 and a lifting ring 2063; the side of the cooling chamber 1 where the cooling component 2 is installed is the raw material output end and is connected to the blister pack machine. After the raw material is processed by the blister pack machine, it enters the cooling chamber 101 and stops. At this time, the electric push rod 205 and the hydraulic rod 202 are activated. At this time, the lifting mold 204 and the cavity shell 206 approach and clamp the strip raw material, and squeeze and flatten the surface. At the same time, the formed blister pack will be accommodated by the outer shell 2041 and supported on the outside to prevent the blister pack that has not yet been fully shaped from deforming when the cold air is blown later. The inner wall shape of the outer shell 2041 is the same as the outer shape of the blister pack.

[0033] The support plate 203 is fixedly connected to the inner wall of the mounting cavity 201. Several outer shells 2041 are fixedly installed on the bottom surface of the lifting mold 204, and the position of the outer shells 2041 corresponds to the air outlet 2061. The partition plate 2062 is located between two closed plates 2091. A limiting cavity 2094 is symmetrically opened in the upper part of the cooling chamber 1. The lifting column 2092 is slidably connected to the inner top surface of the cooling chamber 101, and the lifting column 2092 extends into the limiting cavity 2094. Moreover, an anti-detachment block 2093 is fixedly connected to the top of the lifting column 2092. 2093 is slidably connected to the limiting cavity 2094; the bottom surface of the sealing plate 2091 is in contact with the top surface of the supporting ring 2063, and the top surface of the sealing plate 2091 can be flush with the top surface of the partition 2062, and the sealing plate 2091 slides in contact with the inner wall of the cavity shell 206; and as the cavity shell 206 descends, the connecting rod 209 will descend synchronously with the cavity shell 206. When the anti-detachment block 2093 moves to the bottom of the limiting cavity 2094, it cannot move, thereby causing the connecting rod 209 to drive the sealing plate 2091 to maintain its current height. As the cavity shell 206 continues to move downwards, the partition plate 2062 and the sealing plate 2091 are misaligned, forming an airflow channel. An external cold air pump rapidly injects cold air into the cavity shell 206 through the cold air pipe 207, and then ejects it from the air outlet 2061 through the airflow channel. When the cavity shell 206 completely adheres to and covers the strip material, the cold air will be precisely blown onto the blister pack to precisely cool it and accelerate its cooling and molding. When the air pressure inside the cavity shell 206 and the blister pack increases excessively, the air pressure will be released from the one-way exhaust rubber plug 208 for venting. Pressure; and when the cavity shell 206 is in the initial position, that is, when the partition plate 2062 and the sealing plate 2091 are flush, the cold air continuously blown in by the cold air pipe 207 will leak out from the gap between the sealing plate 2091 and the partition plate 2062 and the cavity shell 206. While depressurizing, it prevents a large amount of cold air from escaping, forming a semi-closed effect. At the same time, it can cool the cavity shell 206, so that when the cavity shell 206 and the lifting mold 204 squeeze and flatten the strip material, such as aluminum foil strip, it also has a cooling effect, preventing the aluminum foil strip from reheating after the blister cools down due to temperature conduction.

[0034] The water-absorbing assembly 3 includes an extension plate 301 fixedly installed on one side of the cavity shell 206. An installation plate 302 is installed on the bottom surface of the extension plate 301, and several water-absorbing blocks 303 are fixedly connected to the bottom surface of the installation plate 302. A suspension column 304 is fixedly connected to the center of the top surface of the installation plate 302. A hanging plate 305 and a fixing plate 306 are sleeved on the outside of the suspension column 304. Both the hanging plate 305 and the fixing plate 306 are fixedly connected to the suspension column 304, and the hanging plate 305 is located above the suspension column 304. As the cavity shell 206 descends, the extension plate 301 also descends, causing the installation plate 302 to descend as well. This allows the water-absorbing blocks 303 to be precisely inserted into the intermittently delivered and stationary bubble cap, adhering to the surface of the bubble cap and absorbing the trace amounts of condensate generated by the cooling assembly 2. The water-absorbing blocks 303 are made of superabsorbent polymer and are smaller than the inner diameter of the bubble cap.

[0035] A bending limiting plate 307 is fixedly connected to the top surface of the extension plate 301. Both the bending limiting plate 307 and the extension plate 301 have clearance grooves on one side, and both the bending limiting plate 307 and the fixing plate 306 have screw holes 308 on their top surfaces. A limiting groove is provided between the bending limiting plate 307 and the extension plate 301, and bolts are threaded into the screw holes 308. The suspension column 304 is slidably connected to the clearance groove, and the hanging plate 305 is slidably connected to the limiting groove. By removing the bolts, the mounting plate 302 can be pulled off the bending limiting plate 307 along with the suspension column 304, the hanging plate 305, and the fixing plate 306, so as to realize the replacement of the mounting plate 302 and the water absorption block 303, and avoid the failure of the water absorption block 303 after long-term use. The water absorption block 303 is bonded to the mounting plate 302 and can be directly peeled off and glued for replacement.

[0036] Working principle: Before using this cooling and forming device for a blister pack machine, it is necessary to check the overall condition of the device to ensure it can operate normally. Figure 1 - Figure 4 As shown, the electric actuator 205 and hydraulic rod 202 are activated, the lifting mold 204 and the cavity shell 206 approach and clamp the strip material for extrusion and flattening, and the outer shell 2041 accommodates and supports the blister pack.

[0037] When the cavity shell 206 descends, the connecting rod 209 descends synchronously first. After the anti-detachment block 2093 reaches the bottom of the limiting cavity 2094, the sealing plate 2091 stops. The cavity shell 206 continues to move down, causing the partition plate 2062 and the sealing plate 2091 to be misaligned to form an airflow channel.

[0038] An external cooling pump injects cold air into the cavity shell 206 through the cooling air pipe 207, and the air is then ejected from the air outlet 2061 through the airflow channel, precisely blowing onto the blister pack to accelerate cooling and molding. When the air pressure is too high, the one-way exhaust rubber plug 208 releases pressure; in the initial position, cold air leaks out from the gap, creating a semi-sealed effect and lowering the temperature. At the same time, the cavity shell 206 descends, causing the extension plate 301 and the mounting plate 302 to descend as well, and the water-absorbing block 303 inserts into the blister pack to absorb condensate. The mounting plate 302 and the water-absorbing block 303 can be replaced by removing the bolts.

[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cooling forming device for a blister pack machine, comprising a cooling chamber (1), wherein a cooling cavity (101) is provided in the middle of the cooling chamber (1); characterized in that Also includes: A cooling assembly (2) is provided on one side of the interior of the cooling chamber (101), and a water absorption assembly (3) is provided on the other side of the interior of the cooling chamber (101); The cooling assembly (2) includes an installation cavity (201) opened inside the cooling chamber (1), a hydraulic rod (202) is installed inside the installation cavity (201), a support plate (203) is fixedly connected to the bottom end of the hydraulic rod (202), and a lifting mold (204) is connected to the top end of the hydraulic rod (202). The cooling assembly (2) further includes an electric push rod (205) fixedly installed on the top surface of the cooling chamber (101). The output end of the electric push rod (205) is fixedly connected to a cavity shell (206). A cold air pipe (207) is fixedly connected through the top of the cavity shell (206). A one-way exhaust rubber plug (208) is fixedly installed on the outside of the cavity shell (206). A connecting rod (209) is symmetrically slidably connected to the top of the cavity shell (206). A lifting column (2092) is fixedly connected to the top of the connecting rod (209) by bolts. A sealing plate (2091) is fixedly connected to the bottom of the connecting rod (209). The cavity shell (206) has several air outlets (2061) at its bottom, and a partition (2062) and a lifting ring (2063) are fixedly connected inside the cavity shell (206).

2. A cooling forming device for a blister machine according to claim 1, characterized in that: The support plate (203) is fixedly connected to the inner wall of the mounting cavity (201). Several outer shells (2041) are fixedly installed on the bottom surface of the lifting mold (204), and the position of the outer shells (2041) corresponds to the air outlet (2061). The partition plate (2062) is located between two closed plates (2091).

3. A cooling forming device for a blister machine according to claim 2, characterized in that: The cooling chamber (1) has symmetrically arranged limiting cavities (2094) on the upper part of its interior. The lifting column (2092) is slidably connected to the inner top surface of the cooling chamber (101), and the lifting column (2092) extends into the limiting cavity (2094). The top end of the lifting column (2092) is fixedly connected to an anti-detachment block (2093), and the anti-detachment block (2093) is slidably connected to the limiting cavity (2094).

4. A cooling forming device for a blister machine according to claim 1, characterized in that: The bottom surface of the sealing plate (2091) is in contact with the top surface of the lifting ring (2063), and the top surface of the sealing plate (2091) can be flush with the top surface of the partition (2062). Moreover, the sealing plate (2091) slides in contact with the inner wall of the cavity of the cavity shell (206).

5. A cooling forming device for a blister machine according to claim 1, characterized in that: The water-absorbing assembly (3) includes an extension plate (301) fixedly installed on one side of the cavity shell (206). An installation plate (302) is installed on the bottom surface of the extension plate (301), and a plurality of water-absorbing blocks (303) are fixedly connected to the bottom surface of the installation plate (302). A suspension column (304) is fixedly connected to the middle of the top surface of the installation plate (302). A hanging plate (305) and a fixing plate (306) are sleeved on the outside of the suspension column (304). Both the hanging plate (305) and the fixing plate (306) are fixedly connected to the suspension column (304), and the hanging plate (305) is located above the suspension column (304).

6. A cooling forming device for a blister machine according to claim 5, characterized in that: A bending limiting plate (307) is fixedly connected to the top surface of the extension plate (301). A clearance groove is provided on one side of both the bending limiting plate (307) and the extension plate (301). A screw hole (308) is provided on the top surface of both the bending limiting plate (307) and the fixing plate (306). A limiting groove is provided between the bending limiting plate (307) and the extension plate (301). A bolt is threaded into the screw hole (308).

7. A cooling forming device for a blister machine according to claim 5, characterized in that: The suspension column (304) is slidably connected to the clearance groove, and the hanging plate (305) is slidably connected to the limiting groove.

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