Capsule thermoforming cooling device
By using automated control and precise temperature control of the capsule thermoforming cooling device, the problems of low efficiency and unstable quality in traditional capsule production have been solved, achieving efficient and stable capsule production to meet the needs of large-scale production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HARBIN TONGYITANG PHARMA CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-07-14
AI Technical Summary
Traditional capsule production equipment relies on manual operation, resulting in low production efficiency and unstable quality, making it difficult to meet the quality consistency requirements of large-scale continuous production.
The capsule thermoforming cooling device includes a temperature controller, PLC controller, stepper motor, air cooler and glue dipping mechanism to achieve automated control and precise temperature control, ensuring stable glue temperature, accurate glue dipping depth and cooling effect. Combined with a detachable glue dipping mechanism and friction reduction design, it improves production efficiency and molding quality.
It has enabled the automation, precision, and efficiency of capsule production, improved production efficiency, ensured the consistency of capsule quality, reduced labor intensity and material waste, and enhanced the applicability and maintainability of the equipment.
Smart Images

Figure CN224489777U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of capsule production equipment, specifically a capsule thermoforming cooling device. Background Technology
[0002] In the pharmaceutical and health product industry, capsules, as an important drug carrier, are widely used in the production of many medicines such as Gujinwan capsules, Zhenqi Jiangtang capsules, Shenling Tongluo capsules, and Yandan Yixin capsules. Their production quality and efficiency directly affect the safety of the medicines and the economic benefits of the enterprises.
[0003] With the continuous growth of market demand, traditional equipment has obvious shortcomings. Many production processes rely on manual operation. From controlling the depth of glue application to managing the cooling process, and then to demolding and collection, all require manual intervention. This not only makes the labor intensity of workers extremely high and makes it difficult to improve production efficiency, but also introduces many uncertainties in manual operation, which can easily introduce human error. This results in inconsistent quality of each batch of capsules, making it difficult to meet the strict requirements of large-scale continuous production for product quality consistency, and seriously limiting the improvement of enterprise production efficiency and product competitiveness. Utility Model Content
[0004] To address the problems existing in the background art, this utility model provides a capsule thermoforming cooling device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a capsule thermoforming cooling device, comprising a base, a first upright plate, a second upright plate, a horizontal plate, a stepper motor, a threaded rod, an internal threaded sleeve, a connector, a fixing block, a glue box, a heating rod, a first cold air blower, a collection box, a second cold air blower, a temperature controller, and a glue dipping mechanism.
[0006] The base has a first upright plate and a second upright plate on its upper end. The upper end of the first upright plate is fixedly connected to a horizontal plate. A stepper motor is installed on the horizontal plate. The output shaft of the stepper motor is fixedly connected to the upper end of a threaded rod. The lower end of the threaded rod is rotatably connected to the base. The threaded rod is positioned between the first upright plate and the second upright plate, with the first upright plate and the second upright plate corresponding to each other. The threaded rod is threadedly connected to an internal threaded sleeve. The internal threaded sleeve is fixedly connected to a fixing block via a connector. The fixing block is detachably connected to a glue-dipping mechanism. A glue box is located below the glue-dipping mechanism. The glue box is fixedly connected to one end of the base. A heating rod is installed inside the glue box. The heating rod is electrically connected to a temperature controller, which is located on the glue box. A first cold air blower is located at the rear end of the glue box. The first cold air blower works in conjunction with the glue-dipping mechanism. The other end of the base is fixedly connected to a collection box. A second cold air blower is located at the rear end of the collection box.
[0007] The base is equipped with a PLC controller, which is connected to the glue-dipping mechanism, the stepper motor, the first air cooler, and the second air cooler.
[0008] The adhesive dispensing mechanism includes a fixed plate, a top plate, an electric telescopic rod, a push plate, a level gauge, and multiple adhesive dispensing rods;
[0009] The fixing plate has multiple through holes and multiple slots. The fixing block has threaded holes corresponding to the multiple through holes and insertion posts corresponding to the multiple slots. Each insertion post is inserted into its corresponding slot. Each through hole is connected to its corresponding threaded hole by a bolt. The lower end of the fixing plate is fixedly connected to the top plate. The top plate has an electric telescopic rod, which is signal-connected to the PLC controller. The output end of the electric telescopic rod is fixedly connected to the push plate. The lower end face of the top plate has multiple glue-dipping rods arranged in an array. The push plate has sliding holes corresponding to the multiple glue-dipping rods. Each sliding hole is slidably connected to the corresponding glue-dipping rod. A level gauge is fixed to the side wall of the top plate, and the level gauge is signal-connected to the PLC controller.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] 1. Precise temperature control ensures stable raw material conditions: The temperature controller keeps the temperature of the glue solution in the glue tank within the preset range, providing stable raw material conditions for the glue dipping process and avoiding the impact of temperature fluctuations on the performance of the glue solution, thereby ensuring the quality of capsule molding.
[0012] 2. High degree of automation and significantly improved production efficiency: Through the coordinated control of components such as stepper motors, air coolers, and electric telescopic rods by PLC controllers, automated cyclic production of glue dipping, cooling, and demolding is achieved, reducing manual intervention, lowering labor intensity, and greatly improving capsule production efficiency to meet the needs of continuous production.
[0013] 3. Precise glue application and reliable molding quality: The level gauge detects the depth of the glue stick immersed in the glue in real time and feeds the data back to the PLC controller, which precisely controls the number of rotations of the stepper motor to ensure consistent glue application depth each time and guarantee uniform capsule specifications. At the same time, the glue stick is pre-cooled, which promotes the rapid adhesion of the glue to form a preliminary outline. The initial cooling with cold air accelerates the curing of the glue film, and the secondary cooling further ensures the capsule molding effect and improves the product qualification rate.
[0014] 4. Reasonable structure, easy maintenance and replacement: The fixing block and the glue-dip mechanism are detachably connected. Different specifications of glue-dip mechanisms can be customized according to the capsule size, which can be replaced quickly and easily, enhancing the versatility and adaptability of the device. The inner wall of the upright plate is equipped with a friction-reducing coating to reduce friction between moving parts, reduce wear, extend the service life of the equipment, and facilitate the maintenance and upkeep of the equipment.
[0015] 5. Convenient collection and reduced material waste: The electric telescopic rod pushes the push plate to push the formed capsules off the surface of the glue stick and accurately drop them into the collection box, avoiding the scattering and damage of the capsules during the falling process, reducing material waste, and ensuring the efficiency and orderliness of the collection process.
[0016] In summary, this utility model effectively improves the quality and efficiency of capsule production, reduces production costs, and enhances equipment applicability and maintainability through its advantages in precise temperature control, highly automated control, accurate glue application, reasonable structural design, and convenient collection. It has significant practical value and economic benefits. Attached Figure Description
[0017] Figure 1 This is a front view of the present invention;
[0018] Figure 2 This is a top view of the present invention;
[0019] Figure 3 This is the left view of this utility model;
[0020] Figure 4 This is a schematic diagram of the adhesive dispensing mechanism of this utility model. Detailed Implementation
[0021] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.
[0022] This embodiment describes a capsule thermoforming cooling device, including a base 1, a first upright plate 2, a second upright plate 3, a horizontal plate 4, a stepper motor 5, a threaded rod 6, an internal threaded sleeve 7, a connector 8, a fixing block 9, a glue box 17, a heating rod 18, a first air cooler 19, a collection box 20, a second air cooler 21, a temperature controller 22, and a glue dipping mechanism.
[0023] The base 1 has a first upright plate 2 and a second upright plate 3 on its upper end. The upper end of the first upright plate 2 is fixedly connected to a horizontal plate 4. A stepper motor 5 is mounted on the horizontal plate 4. The output shaft of the stepper motor 5 is fixedly connected to the upper end of a threaded rod 6. The lower end of the threaded rod 6 is rotatably connected to the base 1. The threaded rod 6 is positioned between the first upright plate 2 and the second upright plate 3, with the first upright plate 2 and the second upright plate 3 corresponding to each other. The threaded rod 6 is threadedly connected to an internal threaded sleeve 7. The internal threaded sleeve 7 is fixedly connected to a fixing block 9 via a connecting piece 8. The fixing block 9 is detachably connected to the glue-dipping mechanism. A glue box 17 is provided below the glue-dipping mechanism. The glue box 17 is fixedly connected to one end of the base 1. A heating rod 18 is provided inside the glue box 17. The heating rod 18 is electrically connected to a temperature controller 22. The temperature controller 22 is set on the glue box 17. A first air cooler 19 is provided at the rear end of the glue box 17. The first air cooler 19 is used in conjunction with the glue-dipping mechanism. The other end of the base 1 is fixedly connected to the collection box 20. A second air cooler 21 is provided at the rear end of the collection box 20.
[0024] The base 1 is equipped with a PLC controller 23, which is connected to the glue dispensing mechanism, the stepper motor 5, the first air cooler 19 and the second air cooler 21 respectively.
[0025] The adhesive dispensing mechanism includes a fixed plate 11, a top plate 12, an electric telescopic rod 13, a push plate 14, a level gauge 16, and multiple adhesive dispensing rods 15;
[0026] The fixing plate 11 has multiple through holes and multiple slots. The fixing block 9 has threaded holes corresponding to the multiple through holes and insertion posts 10 corresponding to the multiple slots. Each insertion post 10 is inserted into the corresponding slot. Each through hole is connected to the corresponding threaded hole by a bolt. The lower end of the fixing plate 11 is fixedly connected to the top plate 12. The top plate 12 is provided with an electric telescopic rod 13. The electric telescopic rod 13 is connected to the PLC controller 23 by signal. The output end of the electric telescopic rod 13 is fixedly connected to the push plate 14. The lower end face of the top plate 12 is provided with multiple glue sticks 15. The push plate 14 is provided with sliding holes corresponding to the multiple glue sticks 15. Each sliding hole is slidably connected to the corresponding glue stick 15. A liquid level gauge 16 is fixed on the side wall of the top plate 12. The liquid level gauge 16 is connected to the PLC controller 23 by signal.
[0027] When using this invention, firstly, an appropriate amount of the prepared capsule raw material mixture is injected into the glue tank 17. The NTC temperature sensor built into the temperature controller 22 monitors the glue temperature in real time and precisely controls the on / off state of the heating rod 18 based on the PID adjustment algorithm, so that the glue temperature is stably maintained within the preset range, providing stable raw material conditions for the glue dipping process. Subsequently, the PLC controller 23 starts the first air cooler 19 and the second air cooler 21 to blow out cold air. The first air cooler 19 pre-cools the multiple glue dipping rods 15 in the glue dipping mechanism, reducing the surface temperature of the glue dipping rods, which facilitates the adhesion and formation of the glue on their surface. Then, the PLC controller 23 controls the stepper motor 5 to rotate forward. The output shaft of stepper motor 5 drives the threaded rod 6 to rotate synchronously. Since the inner threaded sleeve 7 is threadedly connected to the threaded rod 6, and the fixing block 9 is fixed to the inner threaded sleeve 7 through the connecting piece 8, when the fixing block 9 rotates to fit against the vertical plate 2, it is limited by the vertical plate 2 and cannot continue to rotate. It can only move downward along the vertical plate 2. The inner wall of the vertical plate 2 is provided with a friction-reducing coating to reduce the friction between the two. The fixing block 9 drives the glue-dipping mechanism connected to it, so that multiple glue-dipping rods 15 on the top plate 12 and the level gauge 16 move together into the glue tank 17. During the movement, the level gauge 16 detects the depth of the glue-dipping rods 15 immersed in the glue in real time and feeds the data back to the PLC. The PLC controller 23 precisely controls the number of rotations of the stepper motor 5 according to a preset program, ensuring that the adhesive stick 15 is immersed in the adhesive solution to a consistent depth each time it is applied. Since the adhesive stick 15 has been pre-cooled, the low temperature of its surface causes the adhesive to adhere quickly when immersed in the adhesive solution in the adhesive tank 17, forming the initial outline of the capsule. After the adhesive stick 15 reaches the specified depth and remains there for a preset time, the PLC... Controller 23 controls stepper motor 5 to rotate in the reverse direction. At this time, fixed block 9 rotates with the reverse rotation of threaded rod 6. When one end face of fixed block 9 is in contact with vertical plate 2 3, it is limited by vertical plate 2 3 and slides upward along vertical plate 2 3. The inner wall of vertical plate 2 3 is also provided with anti-friction coating to reduce the friction between the two. During the process of the glue stick 15 rising, under normal circumstances, a stalactite-like structure will not form under the glue film. This is because the glue is viscous. When the glue stick rises, the glue will be kept as evenly distributed on the surface of the glue stick as possible under the action of surface tension and its own viscosity, and will not easily drip downwards. Forming a stalactite-like shape, the adhesive stick 15 passes through the air outlet of the air cooler 19. The cold air provides initial cooling to the adhesive stick, accelerating the curing of the adhesive film. When the fixing block 9 moves to the gap between the horizontal plate 4 and the vertical plate 3, it loses the restraint of the vertical plate 3, and the internal threaded sleeve 7 rotates with the stepper motor 5 until the fixing block 9 continues to move to the air cooler 21. At this time, the other end of the fixing block 9 is again in contact with the vertical plate 3. The PLC controller 23 controls the stepper motor 5 to stop rotating, so that the adhesive stick 15 stays at the air cooler 21 for secondary cooling, further solidifying the capsule formation. After the cooling process is completed,First, the PLC controller 23 stops the second air cooler 21. Then, the PLC controller 23 activates the electric telescopic rod 13, whose telescopic end moves downwards and pushes the push plate 14. Because the sliding hole on the push plate 14 is in sliding engagement with the glue-dipping rod 15, the downward movement of the push plate 14 pushes the formed capsules off the surface of the glue-dipping rod 15, causing them to fall into the collection box 20 below for collection. Subsequently, the PLC controller 23 controls the electric telescopic rod 13 to reset, and the stepper motor 5 drives the glue-dipping mechanism back to its initial position, initiating the next cycle of glue dipping, cooling, and demolding. This achieves continuous and automated capsule production. Since the fixing block 9 is detachably connected to the glue-dipping mechanism, the glue-dipping mechanism can be customized according to the capsule size for easy replacement.
[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A capsule thermoforming cooling device, characterized in that: Includes base (1), upright plate one (2), upright plate two (3), horizontal plate (4), stepper motor (5), threaded rod (6), internal threaded sleeve (7), connector (8), fixing block (9), glue box (17), heating rod (18), air cooler one (19), collection box (20), air cooler two (21), temperature controller (22) and glue dispensing mechanism; The base (1) has a first upright plate (2) and a second upright plate (3) on its upper end. The upper end of the first upright plate (2) is fixedly connected to the horizontal plate (4). The horizontal plate (4) is equipped with a stepper motor (5). The output shaft of the stepper motor (5) is fixedly connected to the upper end of the threaded rod (6). The lower end of the threaded rod (6) is rotatably connected to the base (1). The threaded rod (6) is located between the first upright plate (2) and the second upright plate (3). The first upright plate (2) and the second upright plate (3) are correspondingly arranged. The threaded rod (6) is threadedly connected to the inner threaded sleeve (7). The inner threaded sleeve (7) is fixed to the fixing block (9) through the connector (8). The fixed block (9) is detachably connected to the glue-dipping mechanism. A glue box (17) is provided below the glue-dipping mechanism. The glue box (17) is fixedly connected to one end of the base (1). A heating rod (18) is provided inside the glue box (17). The heating rod (18) is electrically connected to the temperature controller (22). The temperature controller (22) is set on the glue box (17). A cold air blower (19) is provided at the rear end of the glue box (17). The cold air blower (19) is used in conjunction with the glue-dipping mechanism. The other end of the base (1) is fixedly connected to the collection box (20). A cold air blower (21) is provided at the rear end of the collection box (20).
2. The capsule thermoforming cooling device according to claim 1, characterized in that: The base (1) is equipped with a PLC controller (23), which is connected to the glue-dipping mechanism, the stepper motor (5), the first air cooler (19) and the second air cooler (21) respectively.
3. The capsule thermoforming cooling device according to claim 2, characterized in that: The adhesive dispensing mechanism includes a fixed plate (11), a top plate (12), an electric telescopic rod (13), a push plate (14), a level gauge (16), and multiple adhesive dispensing rods (15). The fixing plate (11) is provided with multiple through holes and multiple slots. The fixing block (9) is provided with threaded holes corresponding to the multiple through holes and inserts (10) corresponding to the multiple slots. Each insert (10) is inserted into the corresponding slot. Each through hole is connected to the corresponding threaded hole by a bolt. The lower end of the fixing plate (11) is fixedly connected to the top plate (12). The top plate (12) is provided with an electric telescopic rod (13). The electric telescopic rod (13) is connected to the PLC controller (23) by signal. The output end of the electric telescopic rod (13) is fixedly connected to the push plate (14). The lower end face of the top plate (12) is provided with multiple glue sticks (15). The push plate (14) is provided with sliding holes corresponding to the multiple glue sticks (15). Each sliding hole is in close contact with the corresponding glue stick (15) and is slidably connected. A liquid level gauge (16) is fixed on the side wall of the top plate (12). The liquid level gauge (16) is connected to the PLC controller (23) by signal.