Positioning and heat-sealing mechanism for small can packaging

Abstract

The utility model discloses a small can packaging, positioning and heat-sealing mechanism which comprises a can body conveying mold, a sealing piece discharging assembly and a heat-sealing assembly, and is characterized in that a sealing piece positioning piece is arranged corresponding to the can body conveying mold, and when the can body conveying mold passes through the sealing piece discharging assembly and the heat-sealing assembly, the sealing piece positioning piece is positioned on the sealing piece discharging assembly. And the sealing piece positioning piece moves to the position above the can body in the can body conveying mold and moves together with the can body conveying mold, and the sealing piece positioning piece enables the sealing piece to be positioned and placed at the opening of the can body. The sealing piece placing device is simple in structure and reasonable in design, the sealing piece can be accurately placed at the opening of the can body, the completeness of follow-up heat sealing is ensured, and the attractiveness of a product after heat sealing is improved.

Description

Technical Field

[0001] The utility model relates to packaging equipment, in particular to a small can packaging positioning heat sealing mechanism. Background Art

[0002] At present, small cans for various items are becoming more and more popular, including coffee, tea and other products. After the product is placed inside the can, the sealing sheet needs to be heat-sealed at the opening of the can to seal the can. In order to ensure that the opening of the can can be completely heat-sealed, the area of ​​the traditional heat-sealing sheet is often larger than the opening of the can. After the heat-sealing is completed, the edge of the sealing sheet will extend outward from the opening end of the can, forming a burr-like visual experience, resulting in poor aesthetics of the can and difficulty in attracting consumers. Therefore, a type of heat-sealing packaging method has appeared on the market, which sets a step at the opening of the can, and designs the area of ​​the sealing sheet to be slightly smaller than the opening of the can and can be placed on the step of the opening of the can. However, when the heat-sealing sheet and the can of this structure are heat-sealed, the position of the sealing sheet is difficult to locate, and the position of the sealing sheet often shifts, resulting in incomplete heat sealing. Utility Model Content

[0003] In view of the shortcomings of the background technology, the technical problem to be solved by the utility model is to provide a small can packaging positioning heat sealing mechanism for solving the above-mentioned problem.

[0004] To this end, the utility model is implemented by adopting the following scheme:

[0005] A small can packaging positioning heat-sealing mechanism comprises a can conveying mold and a sealing sheet blanking assembly and a heat-sealing assembly arranged in an array, characterized in that a sealing sheet positioning piece is arranged corresponding to the can conveying mold, and when the can conveying mold passes through the sealing sheet blanking assembly and the heat-sealing assembly, the sealing sheet positioning piece moves to above the can body in the can conveying mold and moves together with the can conveying mold, and the sealing sheet positioning piece positions the sealing sheet at the can opening.

[0006] The tank body conveying mold is arranged on the rotating disk in a circumferential manner.

[0007] The sealing sheet positioning member includes a positioning mold movably arranged on a rotating disk, a sealing sheet positioning ring is arranged on the positioning mold, the aperture of the sealing sheet positioning ring corresponds to the specification of the sealing sheet, one end of the positioning mold is connected to a first spring, and a guide plate is arranged corresponding to the sealing sheet blanking component and the heat sealing component, and the guide plate can squeeze the positioning mold to move, so that the sealing sheet positioning ring moves to the top of the can conveying mold.

[0008] The positioning die is provided with a roller which can be in contact with and squeezed by the guide rail plate.

[0009] The sealing sheet positioning member includes moving blocks arranged at both ends of the can conveying mold, a second spring is arranged at one end of the moving block, and a guide plate is arranged corresponding to the sealing sheet blanking assembly and the heat sealing assembly. The guide plate can squeeze the moving block to move so that the positioning part on the moving block extends above the can placement position in the can conveying mold, and the two positioning parts can cooperate to position the sealing sheet when they extend inward.

[0010] A small can packaging positioning heat sealing mechanism of the above technical solution is characterized by an additional sealing piece positioning member, and the sealing piece positioning member can be movably arranged. Only when the can body is sent to the sealing piece feeding assembly and the heat sealing assembly, the sealing piece positioning member will move to the top of the can body to position the sealing piece, thereby ensuring that the sealing piece can be accurately heat-sealed at the opening of the can body, ensuring the integrity of the subsequent heat seal, and improving the aesthetics of the product after heat sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The utility model has the following drawings:

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 for Figure 1 A partial enlarged view of the area pointed by A in the middle;

[0014] Figure 3 This is a schematic diagram of the sealing sheet positioning member of the utility model when it adopts a moving block structure. DETAILED DESCRIPTION

[0015] As shown in the figure, the utility model discloses a small can packaging positioning heat sealing mechanism, including a can conveying mold 5 and an arranged sealing piece blanking assembly 4 and a heat sealing assembly 2. The can conveying mold 5 is arranged around a rotating disk 1. By controlling the rotation of the rotating disk 1, the can conveying mold 5 can be driven to move to different stations for loading, sealing and other processing operations. In addition, the sealing piece blanking assembly 4 and the heat sealing assembly in this embodiment both adopt common structures on the market, which belong to the prior art and are not the innovation points of this application, so their specific structures will not be described in detail. A sealing piece positioning member is provided corresponding to the can conveying mold 5. When the can conveying mold 5 passes through the sealing piece blanking assembly 4 and the heat sealing assembly 2, the sealing piece positioning member moves to the top of the can 6 in the can conveying mold 5 and moves together with the can conveying mold 5. The sealing piece positioning member positions the sealing piece at the opening of the can 6. In this embodiment, the sealing sheet positioning member includes a positioning die 8 movably arranged on a rotating disk 1, a sealing sheet positioning ring 7 is arranged on the positioning die 8, the aperture of the sealing sheet positioning ring 7 corresponds to the specification of the sealing sheet, one end of the positioning die 8 is connected to a first spring 9, a guide plate 3 is arranged at the corresponding sealing sheet unloading assembly 4 and the heat sealing assembly 2, the guide plate 3 can squeeze the positioning die 8 to move, so that the sealing sheet positioning ring 7 moves to the top of the can conveying die 5, further, the positioning die 8 is provided with a roller 10 that can contact and extrude with the guide plate 3, so that the cooperation and extrusion of the positioning die 8 and the guide plate 3 is smoother, the positioning die 8 is connected to a slide seat, and a slide rail that cooperates with the slide seat is arranged on the frame to guide the movement of the positioning die 8 and improve the stability of its movement. In addition, in addition to the method of using the guide plate extrusion guide, it is also possible to set a guide wheel on the positioning die 8, and set the guide wheel in the guide groove on the guide frame, which can also achieve the guided movement of the positioning die 8. Of course, in addition to the above-mentioned structure, the sealing piece positioning member can also be a moving block 15 arranged at both ends of the can conveying mold 5. A second spring 14 is arranged at one end of the moving block 15, and a guide plate is arranged corresponding to the sealing piece blanking component 4 and the heat sealing component 2. The guide plate can squeeze the moving block 15 to move, so that the positioning part 13 on the moving block 15 extends to above the place where the can 6 is placed in the can conveying mold 5. When the two positioning parts 13 extend inward, they can cooperate to position the sealing piece. This structure can also realize the positioning operation of the sealing piece.

[0016] The working principle of the utility model is as follows: when the can body 6 is placed in the can body conveying mold 5, and as the rotating disk 1 rotates to the feeding station to complete the feeding, the rotating disk 1 drives the can body conveying mold 5 to move to the sealing piece unloading assembly 4, the guide plate 3 squeezes the roller 10 to drive the positioning mold 8 to move, and squeezes the first spring 9, so that the sealing piece positioning ring 7 on the positioning mold 8 moves to the top of the can body conveying mold 5 and aligns with the opening of the can body 6, and then the sealing piece unloading assembly 4 unloads the sealing piece and sends it to the sealing piece positioning ring 7 to achieve sealing. After the mouth piece is positioned, the rotating disk 1 continues to rotate to drive the can conveying mold 5 to move to the bottom of the heat sealing component 2. During this process, the presence of the sealing piece positioning ring 7 ensures that the light-weight sealing piece will not be displaced. Then the heat sealing head in the heat sealing component 2 descends to press the sealing piece down and heat-seal it on the step 12 at the opening of the can 6. Then, as the rotating disk 1 continues to rotate, the roller 10 separates from the guide plate 3, and under the action of the first spring, the positioning mold 8 is driven to reset, so that the can can be taken out of the can conveying mold 5 later.

[0017] The structure of the utility model is characterized in that an additional sealing sheet positioning member is provided, and the sealing positioning member is movably provided. Only when the can body is sent to the sealing sheet feeding assembly and the heat sealing assembly, the sealing positioning member will move to the top of the can body to position the sealing sheet, thereby ensuring that the sealing sheet can be accurately heat-sealed at the opening of the can body, ensuring the integrity of the subsequent heat seal, and improving the aesthetics of the product after heat sealing.

Claims

1. A small can packaging positioning heat sealing mechanism, comprising a can body conveying mold (5) and a sealing sheet feeding assembly (4) and a heat sealing assembly (2) arranged in an arranged manner, characterized in that: A sealing sheet positioning member is provided corresponding to the can body conveying mold (5). When the can body conveying mold (5) passes through the sealing sheet blanking assembly (4) and the heat sealing assembly (2), the sealing sheet positioning member moves to above the can body (6) in the can body conveying mold (5) and moves together with the can body conveying mold (5). The sealing sheet positioning member positions the sealing sheet at the opening of the can body (6).

2. A small can packaging positioning heat sealing mechanism according to claim 1, characterized in that The tank conveying mold (5) is arranged in a circumferential manner on the rotating disk (1).

3. A small can packaging positioning heat sealing mechanism according to claim 2, characterized in that The sealing sheet positioning member comprises a positioning die (8) movably arranged on a rotating disk (1); a sealing sheet positioning ring (7) is arranged on the positioning die (8); the aperture of the sealing sheet positioning ring (7) corresponds to the specification of the sealing sheet; one end of the positioning die (8) is connected to a first spring (9); a guide plate (3) is arranged at a position corresponding to the sealing sheet feeding assembly (4) and the heat sealing assembly (2); the guide plate (3) can squeeze the positioning die (8) to move, so that the sealing sheet positioning ring (7) moves to the top of the can body conveying die (5).

4. A small can packaging positioning heat sealing mechanism according to claim 3, characterized in that The positioning die (8) is provided with a roller (10) that can contact and extrude the guide rail plate (3).

5. A small can packaging positioning heat sealing mechanism according to claim 1, characterized in that The sealing sheet positioning member comprises a moving block (15) arranged at both ends of the can body conveying mold (5), a second spring (14) being arranged at one end of the moving block (15), and a guide plate being arranged at positions corresponding to the sealing sheet blanking assembly (4) and the heat sealing assembly (2), the guide plate being capable of squeezing the moving block (15) to move so that the positioning portion (13) on the moving block (15) extends above the position where the can body (6) is placed in the can body conveying mold (5), and the two positioning portions (13) can cooperate to position the sealing sheet when they extend inward.

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