Multi-station synchronous heat-seal press device of bag making machine

Abstract

The utility model relates to heat seal press fit technical field especially relates to a kind of multi-station synchronous heat seal press fit device of bag making machine, including multiple conveying device of conveying material to be heat sealed and be located on conveying device lifting assembly, further include heat seal component, the quantity of heat seal component is multiple and is set up one-to-one with multiple conveying device, multiple the heat seal component is jointly connected with the support frame connected with lifting assembly, the heat seal component includes rotatingly connected on the rotating rod of support frame and is located on the polyhedral heating column of rotating rod, the polyhedral heating column has at least three heating surfaces distributed along circumference, the utility model can be according to different types heat seal material, to each polyhedral heating column is rotated and is adjusted, selects appropriate heating plate use, and through fixing component, the position of polyhedral heating column is fixed, improve the flexible usability of heat seal press fit device and production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of heat sealing and pressing technology, and in particular to a multi-station synchronous heat sealing and pressing device for a bag making machine. Background Technology

[0002] Bag making machines are key equipment for producing various types of packaging bags. They continuously convey plastic films to be processed to the heat sealing station, where the heating components of the heat sealing device come into contact with the film and transfer heat to the film surface, causing the plastic molecules in the contact area to reach a molten or semi-molten state. At the same time, pressure is applied to the film, causing the molten plastic molecules to permeate and diffuse with each other, eliminating interfacial gaps and achieving heat sealing of the plastic film. In order to improve work efficiency, multi-station synchronous heat sealing and pressing devices have emerged.

[0003] However, the multi-station heat sealing and pressing equipment currently in use provides a single heat sealing temperature across multiple stations, which is usually adjusted through a unified temperature control system. This makes it difficult to achieve differentiated temperature settings for different stations within the same batch of products. For example, when it is necessary to heat seal PE film and composite film simultaneously, the required heat sealing temperatures for the two materials differ significantly. Since the temperature at each station of the existing multi-station heat sealing and pressing equipment is the same, it is difficult to meet this requirement, resulting in low production efficiency.

[0004] Therefore, based on the above situation, it is necessary to design a multi-station synchronous heat sealing and pressing device for a bag making machine to solve the above problems. Utility Model Content

[0005] This invention provides a multi-station synchronous heat sealing and pressing device for a bag making machine to solve the problems in the prior art.

[0006] The technical problem solved by this utility model is achieved by the following technical solution: A multi-station synchronous heat-sealing and pressing device for a bag-making machine includes multiple conveying devices for conveying materials to be heat-sealed and lifting components mounted on the conveying devices. It also includes multiple heat-sealing components, each corresponding to one of the conveying devices. A support frame connected to the lifting components is shared by all the heat-sealing components. Each heat-sealing component includes a rotating rod rotatably connected to the support frame and a multi-faceted heating column mounted on the rotating rod. The multi-faceted heating column has at least three circumferentially distributed heating surfaces. Each heating surface is respectively provided with a heating plate, and the preset heating parameters of different heating plates are adapted to different types of heat-sealing materials. The support frame is provided with a fixing component for fixing the heating surfaces on the heat-sealing components, allowing the heating plates on different heating surfaces to selectively align with the materials to be heat-sealed and perform the heat-sealing operation.

[0007] Preferably, the fixing component includes a polyhedral fixing part disposed on the rotating rod and a polyhedral fixing sleeve slidably connected to the outside of the polyhedral fixing part. A spring is connected between the polyhedral fixing sleeve and the polyhedral fixing part, and a slot adapted to the polyhedral fixing sleeve is provided on the support frame.

[0008] Preferably, the polyhedral heating column is provided with a protective cover for protecting the polyhedral heating column, and the protective cover is provided on the support frame.

[0009] Preferably, a heat insulation layer is provided between the heating plate and the polyhedral heating column.

[0010] Preferably, it also includes a temperature sensor disposed on the heating plate and a controller electrically connected to the temperature sensor.

[0011] Preferably, the polyhedral fixing sleeve is provided with multiple indicator marks that correspond one-to-one with different heating surfaces.

[0012] The beneficial effects of this utility model are: by using heating plates with different preset parameters on the polyhedral heating column, each polyhedral heating column can be rotated and adjusted according to different types of heat-sealing materials, and a suitable heating plate can be selected for use. The position of the polyhedral heating column is fixed by a fixing component, thereby improving the flexibility and production efficiency of the heat-sealing pressing device. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 Schematic diagram of the three-dimensional structure provided by this utility model Figure 1 ; Figure 2 Schematic diagram of the three-dimensional structure provided by this utility model Figure 2 ; Figure 3 A cross-sectional structural diagram of the heat-sealing assembly provided by this utility model; Figure 4 This is a three-dimensional structural diagram of the heat-sealing component in this utility model. Figure 1 ; Figure 5 This is a three-dimensional structural diagram of the heat-sealing component in this utility model. Figure 2 .

[0015] In the diagram, 1. Conveying device; 2. Lifting assembly; 21. Hydraulic telescopic rod; 22. Support frame; 3. Heat sealing assembly; 31. Rotating rod; 32. Polyhedral heating column; 4. Support frame; 5. Heating plate; 6. Fixing assembly; 61. Polyhedral fixing part; 62. Polyhedral fixing sleeve; 7. Spring; 8. Slot; 9. Protective cover; 10. Heat insulation layer; 11. Temperature sensor; 12. Controller; 13. Indicator mark. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations.

[0017] Reference Figures 1-5 As shown, a multi-station synchronous heat sealing and pressing device for a bag making machine includes multiple conveying devices 1 for conveying materials to be heat sealed and a lifting assembly 2 mounted on the conveying devices 1. The lifting assembly 2 can be a support frame 22 connected to the multiple conveying devices 1 and a hydraulic telescopic rod 21 mounted on the support frame 22. A support frame 4 is connected to the movable end of the hydraulic telescopic rod 21. Multiple heat sealing assemblies 3 are mounted on the support frame 4, which correspond one-to-one with the conveying devices 1. When the bag to be heat sealed is conveyed by the conveying device 1 to the area below the heat sealing assembly 3, the hydraulic telescopic rod 21 drives the support frame 4 and the heat sealing device to descend and contact the bag to be heat sealed, thus performing heat sealing and pressing. When heat-sealing bags of different materials simultaneously, different heat-sealing temperatures are required. To accommodate bags of different materials, the heat-sealing assembly 3 is adjusted to different temperatures. The heat-sealing assembly 3 includes a rotating rod 31 rotatably connected to the support frame 4 and a multi-faceted heating column 32 mounted on the rotating rod 31. The multi-faceted heating column 32 has at least three circumferentially distributed heating surfaces, each with a corresponding heating plate 5. In actual use, the heating plates 5 are heated by an external power source. The heating plates 5 can be resistance heating plates with built-in heating wires or heating tubes. After being powered on, they generate heat through resistance heating. The control system presets heating parameters for different heating plates 5. For example, if there are three heating plates 5, the temperatures of the three heating plates 5 gradually increase until the heat is sealed. When heat-sealing thinner plastic bags, the polyhedral heating column 32 can be rotated to align the heating plate 5 with the lowest preset temperature with the surface of the conveying device 1. When heat-sealing thicker plastic bags, the polyhedral heating column 32 can be rotated to align the heating plate 5 with the higher preset temperature with the surface of the conveying device 1. Thus, when different types of heat-sealing materials are conveyed on different conveying devices 1, rotating the appropriate heating plate 5 to align with the heat-sealing material can meet the heat-sealing requirements of different temperatures at multiple workstations. After the heating plate 5 is aligned with the heat-sealing material, in order to maintain the position temperature of the heating plate 5, a fixing component 6 is provided on the support frame 4. The fixing component 6 fixes the polyhedral heating column 32 to prevent it from rotating and causing the heating plate 5 to shift, so that the heating plate 5 can be aligned with the heat-sealing material and perform heat-sealing operations, thereby improving production efficiency.

[0018] Reference Figures 3-5 As shown, the fixing component 6 further includes a polyhedral fixing part 61 disposed on the rotating rod 31 and a polyhedral fixing sleeve 62 slidably connected to the outside of the polyhedral fixing part 61. In actual use, multiple faces of the polyhedral fixing part 61 and the polyhedral fixing sleeve 62 can be the same as those of the polyhedral heating column 32. When it is necessary to rotate the polyhedral heating column 32, rotating the polyhedral fixing sleeve 62 drives the polyhedral fixing part 61 and the rotating rod 31 to rotate. When it is necessary to rotate the polyhedral heating column 32... When fixing, the polyhedral fixing sleeve 62 is slid towards the polyhedral heating column 32, so that one end of the polyhedral fixing sleeve 62 is inserted into the slot 8 on the support frame 4 that is adapted to the polyhedral fixing sleeve 62, thereby limiting the rotation of the rotating rod 31. In order to improve the stability of the polyhedral fixing sleeve 62, a spring 7 is connected between the polyhedral fixing sleeve 62 and the polyhedral fixing part 61. Under the elastic action of the spring 7, the stability of the polyhedral fixing sleeve 62 in the slot 8 is improved.

[0019] The polyhedral fixing sleeve 62 is provided with multiple indicator marks 13 that correspond one-to-one with different heating surfaces. For example, different colors can be painted on the indicator marks 13, and different preset temperatures can be written on them. When selecting the heating plate 5 according to the material to be heat-sealed, the selection can be made quickly, reducing the error rate of operation.

[0020] Reference Figures 1-3 As shown, the polyhedral heating column 32 is further provided with a protective cover 9 for protecting the polyhedral heating column 32. The protective cover 9 is fixed on the support frame 4 to maintain its stability. The protective cover 9 can cover the unused heating plate 5. For example, when the heat sealing material needs to be replaced on the same production line, the heating plate 5 needs to be replaced accordingly. The heating plate 5 used in the previous production line may still have residual heat, which may burn the staff or have mosquitoes sticking to it, which will affect the next use. The protective cover 9 protects it and reduces the occurrence of this situation.

[0021] Reference Figure 1 , Figure 4 As shown, a temperature sensor 11 is further provided on the heating plate 5. The temperature sensor 11 can sense the temperature on the heating plate 5. When the temperature is higher or lower than the preset temperature, the controller 12, which is electrically connected to the temperature sensor 11, is set to control the heating plate 5 to start and stop heating.

[0022] A heat insulation layer 10 is provided between the heating plate 5 and the polyhedral heating column 32. There may be heat transfer between the heating plates 5 on adjacent heating surfaces. For example, if a heating plate 5 with a higher temperature is used on the previous production line, the adjacent heating plate 5 with a lower temperature will have a higher temperature than itself in advance. When the next production line uses a heating plate 5 with a lower temperature, it may be necessary to wait for the temperature to drop, otherwise it will affect the heat sealing quality and interrupt the continuous production rhythm. The setting of the heat insulation layer 10 can reduce the occurrence of this situation. The heat insulation layer 10 can be made of materials such as aerogel felt and ceramic fiber board.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-station synchronous heat-sealing and pressing device for a bag-making machine, comprising multiple conveying devices (1) for conveying materials to be heat-sealed and a lifting assembly (2) disposed on the conveying devices (1), characterized in that, It also includes heat sealing components (3), the number of which is multiple and is set one-to-one with multiple conveying devices (1). Multiple heat sealing components (3) are connected together to a support frame (4) connected to a lifting component (2). The heat sealing component (3) includes a rotating rod (31) rotatably connected to the support frame (4) and a polyhedral heating column (32) on the rotating rod (31). The polyhedral heating column (32) has at least three heating surfaces distributed along the circumference. Each heating surface is respectively provided with a heating plate (5), and the preset heating parameters of different heating plates (5) are adapted to different types of heat sealing materials. The support frame (4) is provided with a fixing component (6) for fixing the heating surfaces on the heat sealing component (3), so that the heating plates (5) on different heating surfaces are selectively aligned with the material to be heat sealed and heat sealing is performed.

2. The multi-station synchronous heat sealing and pressing device for a bag making machine according to claim 1, characterized in that, The fixing component (6) includes a polyhedral fixing part (61) disposed on the rotating rod (31) and a polyhedral fixing sleeve (62) slidably connected to the outside of the polyhedral fixing part (61). A spring (7) is connected between the polyhedral fixing sleeve (62) and the polyhedral fixing part (61). The support frame (4) is provided with a slot (8) that is adapted to the polyhedral fixing sleeve (62).

3. The multi-station synchronous heat sealing and pressing device for a bag making machine according to claim 1, characterized in that, The polyhedral heating column (32) is provided with a protective cover (9) for protecting the polyhedral heating column (32), and the protective cover (9) is provided on the support frame (4).

4. The multi-station synchronous heat sealing and pressing device for a bag making machine according to claim 1, characterized in that, A heat insulation layer (10) is provided between the heating plate (5) and the polyhedral heating column (32).

5. The multi-station synchronous heat sealing and pressing device for a bag making machine according to claim 1, characterized in that, It also includes a temperature sensor (11) disposed on the heating plate (5) and a controller (12) electrically connected to the temperature sensor (11).

6. A multi-station synchronous heat sealing and pressing device for a bag making machine according to claim 2, characterized in that, The polyhedral fixing sleeve (62) is provided with multiple indicator marks (13) that correspond one-to-one with different heating surfaces.

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