A combined inner lid film coating hot pressing device

Abstract

The utility model relates to a hot pressing device, specifically disclose a kind of combination cover inner cover film hot pressing device, including bottom plate, first support plate being horizontally arranged on bottom plate, multiple pedestal being arranged on the upper side edge of first support plate, multiple vertical pressure rod being arranged above pedestal, second support plate being arranged above first support plate, connecting cylinder for connecting first support plate and second support plate, first driving device for driving connecting cylinder rotation, and second driving device for driving pressure rod lifting;Multiple pedestal is circumferentially distributed, one pressure rod is arranged directly above one pedestal, heating sheet is arranged on the upper side edge of pedestal, negative pressure hole is formed in the lower end side wall and lower end of pressure rod, and pressure rod is hollow structure, and negative pressure device is communicated in the inside of pressure rod.The combination cover inner cover film hot pressing device of the utility model can efficiently and integrally carry out the hot pressing operation of combination cover.

Description

Technical Field

[0001] This utility model relates to the technical field of hot pressing devices, and more specifically, to a hot pressing device for a combined inner cover film. Background Technology

[0002] Plastic combination caps are sealing components widely used in food, pharmaceutical, and other packaging applications. They consist of a ring-shaped rigid plastic cap and a circular, sheet-like soft plastic film. This structural design provides them with good structural rigidity, reliable sealing performance, and ease of opening, effectively meeting the sealing and user experience requirements of various packaging containers.

[0003] During production, the plastic cap and plastic film components need to be prepared separately, and then tightly bonded together using a hot-pressing process. To achieve continuous production, the plastic cap and plastic film must be precisely transported to the hot-pressing station using a dedicated conveying device. Since both components are made of lightweight materials, they are easily affected by external disturbances during transport and positioning, resulting in displacement or changes in posture. The hot-pressing process demands extremely high positioning accuracy; it is essential to ensure that the plastic cap and film are perfectly aligned at the moment of bonding. Any slight misalignment will lead to bonding deviations, affecting the product's sealing performance and appearance quality.

[0004] Currently, the industry generally lacks integrated hot-pressing equipment specifically designed for this type of composite cap. Existing devices often suffer from problems such as inaccurate positioning, poor adaptability, or low efficiency, making it difficult to meet the demands of high-quality continuous production. Therefore, an integrated hot-pressing device can be designed. Utility Model Content

[0005] The purpose of this invention is to provide a hot-pressing device for the inner cover of a combined lid, which can perform the hot-pressing operation of the combined lid in an efficient and integrated manner.

[0006] This utility model is achieved through the following technical solution: The combined inner cover film-coating hot pressing device of this utility model includes a base plate, a first support plate horizontally disposed on the base plate, a plurality of bases disposed on the upper edge of the first support plate, a plurality of pressure rods vertically disposed above the bases, a second support plate disposed above the first support plate, a connecting cylinder for connecting the first support plate and the second support plate, a first driving device for driving the connecting cylinder to rotate, and a second driving device for driving the pressure rods to rise and fall; the plurality of bases are circumferentially distributed, one pressure rod is disposed directly above one of the bases, the upper edge of the base is provided with a heating plate, the lower side wall and lower end of the pressure rod are provided with negative pressure holes, the pressure rod is a hollow structure, and the inside of the pressure rod is connected to a negative pressure device.

[0007] Furthermore, the second support plate has a vertically arranged limiting plate on its side wall, the limiting plate having an elongated limiting hole, and a horizontally arranged limiting rod fixed at the upper end of the pressure rod; one end of the limiting rod is slidably disposed in the limiting hole.

[0008] Furthermore, the upper edge of the second support plate is provided with a plurality of vertically arranged limiting tubes; the pressure rod is slidably disposed in the limiting tubes, and the pressure rod passes through the second support plate and is slidably connected to the second support plate.

[0009] Furthermore, the second driving device includes a fixed plate horizontally disposed above the second support plate, a support rod vertically disposed and fixedly connected to the fixed plate, and a protrusion disposed on one side edge of the upper surface of the fixed plate; the end of the limiting rod away from the limiting hole is attached to the upper surface of the protrusion; the support rod passes through the connecting cylinder and is fixedly connected to the base plate.

[0010] Furthermore, bearings are provided at both ends of the limiting rod.

[0011] Furthermore, the space at the lower end of the pressure rod is a structure that is larger at the top and smaller at the bottom. An inverted trapezoidal block is provided at the lower end of the pressure rod. A spring is connected to the upper end of the block, and the upper end of the spring is fixedly connected to the inner wall of the pressure rod. A first magnet is provided in the middle of the base, and a second magnet is provided on the lower side of the block. The upper side of the first magnet and the lower side of the second magnet attract each other. When the block is at the lowest point inside the pressure rod, the block seals the negative pressure hole.

[0012] Furthermore, the upper end of the base is provided with a U-shaped heat insulation cover, and the first magnet block is stuck in the heat insulation cover.

[0013] Furthermore, the first driving device includes a motor fixedly mounted on the base plate, and the output shaft of the motor is fixedly connected to the first support plate.

[0014] The technical solution of this utility model has at least the following advantages and beneficial effects: In use, the combined inner cover film-coating hot-pressing device of this utility model adheres the annular inner cover to the lower side wall of the pressure rod. The negative pressure device generates negative pressure inside the pressure rod by suction, allowing the lower end of the pressure rod to pick up the sheet-like plastic film and place it on the base (this can be achieved by driving the pressure rod to rise and fall via a second driving device). Then, the heating plate on the base heats the connection between the inner cover and the plastic film, allowing them to melt together and complete the hot-pressing assembly operation. After hot pressing, it can be transferred to subsequent production equipment. This not only achieves continuous hot pressing but also has high efficiency and better results. Attached Figure Description

[0015] Figure 1A schematic diagram of the combined inner cover film-coating hot pressing device provided in this embodiment of the utility model; Figure 2 This is a structural schematic diagram of the fixing plate portion provided in an embodiment of the present utility model; Figure 3 This is a schematic diagram of the structure of the limiting plate portion provided in an embodiment of the present utility model; Figure 4 This is a schematic diagram of the structure of the pressure bar portion provided in an embodiment of the present utility model; Figure 5 A schematic diagram of the internal structure of the pressure bar in one state provided in an embodiment of this utility model; Figure 6 This is a schematic diagram of the two states inside the pressure bar provided in an embodiment of the present invention.

[0016] Icons: 11-Base plate, 12-First support plate, 13-Second support plate, 14-Pressure rod, 141-Negative pressure hole, 142-Block, 143-Second magnet block, 144-Spring, 15-Connecting cylinder, 16-Limiting plate, 17-Limiting hole, 18-Limiting rod, 19-Limiting tube, 110-Bearing, 20-Second driving device, 21-Fixing plate, 22-Protruding strip, 30-Base, 31-First magnet block, 32-Heat insulation cover. Detailed Implementation

[0017] Example The following description, in conjunction with specific embodiments, further illustrates the point, as shown in the appendix. Figure 1 - Appendix Figure 6As shown, the combined inner cover film-coating hot pressing device of this embodiment includes a base plate 11, a first support plate 12 horizontally disposed on the base plate 11, a plurality of bases 30 disposed on the upper edge of the first support plate 12, a plurality of pressure rods 14 vertically disposed above the bases 30, a second support plate 13 disposed above the first support plate 12, a connecting cylinder 15 for connecting the first support plate 12 and the second support plate 13, a first driving device for driving the connecting cylinder 15 to rotate, and a second driving device 20 for driving the pressure rods 14 to rise and fall; the plurality of bases 30 are circumferentially distributed, and a pressure rod 14 is disposed directly above a base 30. A heating element is provided on the upper edge of the base 30. Negative pressure holes 141 are provided on the lower side wall and lower end of the pressure rod 14. The pressure rod 14 has a hollow structure and a negative pressure device is connected inside the pressure rod 14. Specifically, during use, the annular inner cover is attached to the lower side wall of the pressure rod 14. The negative pressure device draws the pressure rod 14, creating a negative pressure inside it. This allows the lower end of the pressure rod 14 to pick up the sheet-like plastic film and place it on the base 30 (this can be achieved by driving the pressure rod 14 to rise and fall via the second drive device 20). Then, the heating element on the base 30 heats the connection between the inner cover and the plastic film, allowing them to melt together and complete the hot-pressing assembly. After hot pressing, the film can be transferred to subsequent production equipment. This not only enables continuous hot pressing but also achieves high efficiency and better results. It should be noted that other equipment or manual assistance is required to fit the inner cover onto the pressure rod 14 and adhere the plastic film to the lower end of the pressure rod 14. This embodiment only designs the equipment involved in the hot pressing operation of the inner cover and the plastic film.

[0018] In this embodiment, the second support plate 13 has a vertically arranged limiting plate 16 on its side wall. The limiting plate 16 has an elongated limiting hole 17, and a horizontally arranged limiting rod 18 is fixed to the upper end of the pressure rod 14. One end of the limiting rod 18 is slidably disposed in the limiting hole 17. The upper edge of the second support plate 13 has a plurality of vertically arranged limiting tubes 19. The pressure rod 14 is slidably disposed in the limiting tubes 19, and the pressure rod 14 passes through the second support plate 13 and is slidably connected to the second support plate 13. Specifically, the limiting plate 16, the limiting hole 17, and the limiting tubes 19 can effectively restrict the pressure rod 14, allowing it to move stably in the vertical direction.

[0019] The second driving device 20 in this embodiment includes a fixed plate 21 horizontally positioned above the second support plate 13, a support rod vertically positioned and fixedly connected to the fixed plate 21, and a protrusion 22 located on one side edge of the upper surface of the fixed plate 21. One end of the limiting rod 18, away from the limiting hole 17, is attached to the upper surface of the protrusion 22. The support rod passes through the connecting cylinder 15 and is fixedly connected to the base plate 11. Specifically, by providing the protrusion 22, when the pressure rod 14 moves to the position of the protrusion 22, the protrusion 22 can lift the limiting rod 18 (the protrusion 22 is fixed), thereby raising the pressure rod 14. After the pressure rod 14 is raised, the inner cover and plastic film can be adsorbed at its lower end. Alternatively, the inner cover and plastic film can be actively adsorbed by the up-and-down movement of the pressure rod 14. When the limiting rod 18 leaves the protrusion 22, the limiting rod 18 and the pressure rod 14 descend, causing the inner cover and plastic film to adhere to the base 30, thereby allowing the base 30 to perform heat pressing on the inner cover and plastic film.

[0020] In this embodiment, the limiting rod 18 is provided with bearings 110 at both ends.

[0021] In this embodiment, the space at the lower end of the pressure rod 14 is wider at the top and narrower at the bottom. An inverted trapezoidal blocking block 142 is provided at the lower end of the pressure rod 14. A spring 144 is connected to the upper end of the blocking block 142, and the upper end of the spring 144 is fixedly connected to the inner wall of the pressure rod 14. A first magnet 31 is provided in the middle of the base 30, and a second magnet 143 is provided below the blocking block 142. The upper side of the first magnet 31 and the lower side of the second magnet 143 attract each other. When the blocking block 142 is at the lowest point inside the pressure rod 14, it seals the negative pressure hole 141. Specifically, when the lower end of the pressure rod 14 is far from the base 30 (as shown in the attached diagram)... Figure 6 As shown in the figure, since the distance between the first magnet 31 and the second magnet 143 is relatively large, there is no force between them. At this time, the blocking block 142 is pulled by the spring 144, and there is a certain gap between it and the lower end of the inner wall of the pressure rod 14. At this time, the negative pressure device can draw negative pressure through this gap, thereby sucking up the inner cover and the plastic film; when the lower end of the pressure rod 14 presses on the base 30 (as shown in the figure), Figure 5 As shown), the distance between the first magnet block 31 and the second magnet block 143 is close enough that they have an attractive force. The first magnet block 31 pulls the second magnet block 143 and the block 142 down, blocking the negative pressure hole 141. At this time, the inner cover and the plastic film are no longer under negative pressure and will remain on the base 30, so they can be put into the subsequent processing equipment.

[0022] In this embodiment, the upper end of the base 30 is provided with a U-shaped heat insulation cover 32, and the first magnet block 31 is fixed in the heat insulation cover 32. Specifically, the heat insulation cover 32 can effectively prevent the first magnet block 31 from being demagnetized by high temperature.

[0023] The first driving device in this embodiment includes a motor fixedly mounted on the base plate 11, and the output shaft of the motor is fixedly connected to the first support plate 12.

[0024] In summary, the combined inner cover film-coating hot pressing device of this embodiment, during use, attaches the annular inner cover to the lower side wall of the pressure rod 14. The negative pressure device draws the pressure rod 14, thereby generating negative pressure inside the pressure rod 14. This allows the lower end of the pressure rod 14 to pick up the sheet-like plastic film and place it on the base 30 (achieved by driving the pressure rod 14 to rise and fall via the second driving device 20). Then, the heating plates on the base 30 heat the connection between the inner cover and the plastic film, allowing them to melt together and complete the hot pressing assembly operation. After hot pressing, it can be transferred to subsequent production equipment. This not only achieves continuous hot pressing but also has high efficiency and better results.

[0025] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A combined inner cover film-coating hot pressing device, characterized in that: Includes a base plate (11), a first support plate (12) horizontally disposed on the base plate (11), a plurality of bases (30) disposed on the upper edge of the first support plate (12), a plurality of pressure rods (14) vertically disposed above the bases (30), a second support plate (13) disposed above the first support plate (12), a connecting cylinder (15) for connecting the first support plate (12) and the second support plate (13), a first driving device for driving the connecting cylinder (15) to rotate, and a second driving device (20) for driving the pressure rods (14) to rise and fall; Multiple bases (30) are arranged in a circle, and a pressure rod (14) is located directly above a base (30). A heating element is provided on the upper edge of the base (30). Negative pressure holes (141) are provided on the lower side wall and the lower end of the pressure rod (14). The pressure rod (14) has a hollow structure and a negative pressure device is connected inside the pressure rod (14).

2. The combined inner cover film-coating hot pressing device according to claim 1, characterized in that: The second support plate (13) has a vertically arranged limiting plate (16) on its side wall. The limiting plate (16) has an elongated limiting hole (17). The upper end of the pressure rod (14) is fixedly provided with a horizontally arranged limiting rod (18). One end of the limiting rod (18) is slidably disposed in the limiting hole (17).

3. The combined inner cover film-coating hot pressing device according to claim 2, characterized in that: The upper edge of the second support plate (13) is provided with a plurality of vertically arranged limiting tubes (19); the pressure rod (14) is slidably disposed in the limiting tube (19), and the pressure rod (14) passes through the second support plate (13) and is slidably connected to the second support plate (13).

4. The combined inner cover film-coating hot pressing device according to claim 2, characterized in that: The second driving device (20) includes a fixed plate (21) horizontally disposed above the second support plate (13), a support rod vertically disposed and fixedly connected to the fixed plate (21), and a protrusion (22) disposed on one side edge of the upper surface of the fixed plate (21); the end of the limiting rod (18) away from the limiting hole (17) is attached to the upper surface of the protrusion (22); The support rod passes through the connecting cylinder (15) and is fixedly connected to the base plate (11).

5. The combined inner cover film-coating hot pressing device according to claim 4, characterized in that: The limiting rod (18) is provided with bearings (110) at both ends.

6. The combined inner cover film-coating hot pressing device according to claim 1, characterized in that: The space at the lower end of the pressure rod (14) is a structure that is larger at the top and smaller at the bottom. The lower end of the pressure rod (14) is provided with a block (142) with an inverted trapezoidal structure. A spring (144) is connected to the upper end of the block (142). The upper end of the spring (144) is fixedly connected to the inner wall of the pressure rod (14). The base (30) is provided with a first magnet block (31) in the middle, and the block (142) is provided with a second magnet block (143) on the lower side. The upper side of the first magnet block (31) and the lower side of the second magnet block (143) attract each other. When the block (142) is at the lowest point inside the pressure rod (14), the block (142) seals the negative pressure hole (141).

7. The combined inner cover film-coating hot pressing device according to claim 6, characterized in that: The base (30) is provided with a U-shaped heat insulation cover (32) at its upper end, and the first magnet block (31) is inserted into the heat insulation cover (32).

8. The combined inner cover film-coating hot pressing device according to claim 1, characterized in that: The first driving device includes a motor fixedly mounted on the base plate (11), and the output shaft of the motor is fixedly connected to the first support plate (12).

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