Multi-layer linkage heat sealing device

Abstract

The utility model discloses a multi-layer linkage heat sealing device, which relates to the technical field of package heat sealing and comprises a plurality of layers of packaging layers which are arranged in parallel and are of drawer structures, each packaging layer comprises an upper clamping plate assembly, a lower clamping plate assembly, an upper execution vertical plate and a lower execution vertical plate, and the upper execution vertical plates and the lower execution vertical plates are in transmission connection with each packaging layer on the side face. The upper execution vertical plate is fixedly connected with the upper clamping plate assembly of each packaging layer, the lower execution vertical plate is fixedly connected with the lower clamping plate assembly of each packaging layer, transmission rhombus pieces are arranged at the ends of the upper execution vertical plate and the lower execution vertical plate, and fixed hinge points are arranged in the middles of the transmission rhombus pieces. The two ends of the transmission rhombic piece are rotationally connected to the upper execution vertical plate and the lower execution vertical plate through crank wheels correspondingly and drive the upper execution vertical plate and the lower execution vertical plate to move in the opposite directions, and the lower clamping plate assembly comprises a lower heating block. According to the utility model, a plurality of products can be simultaneously heat-sealed on the occupied area of a single heat-sealing interface.

Description

TECHNICAL FIELD

[0001] The utility model relates to packaging heat sealing technical field, concretely relates to multilayer linkage heat sealing device. BACKGROUND

[0002] Packaging heat sealing technology has a wide application in multiple industries, especially in the fields of food, medicine, cosmetics, etc. This technology combines two or more layers of thermoplastic materials through heating, thereby achieving the effect of sealing, effectively preventing the adverse effects of the external environment on the internal products, and helping to extend the shelf life of the products. The core principle of heat sealing is to use heat to soften the plastic material, then apply pressure to make the material tightly fit, and after cooling, a solid sealing structure is formed. Commonly used thermoplastic plastics include polyethylene (PE), polypropylene (PP), polyester (PET), etc. In practical applications, heat sealing technology is not only limited to snack bags, beverage boxes, frozen food bags, etc. in food packaging to maintain the freshness and cleanliness of food; it is also widely used in pharmaceutical packaging, such as blister packaging, medicine bottle caps, etc. to ensure the safety and effectiveness of medicines; in addition, in cosmetic packaging, such as bottle caps, packaging bags, etc., it can also effectively prevent products from being contaminated. In addition, heat sealing technology is also commonly used in the packaging of electronic devices, stationery, toys, and other industries. However, traditional heat sealing equipment has some limitations, for example, the heat sealing interface is usually horizontally arranged, which results in a large floor area, and only a single item can be processed at a time, greatly limiting the improvement of production efficiency and not conducive to the effective use of space. SUMMARY

[0003] TECHNICAL PROBLEM

[0004] To solve the technical problem of low work efficiency and large floor area of existing heat sealing equipment, the utility model provides a multilayer linkage heat sealing device that can simultaneously heat seal multiple products in the floor area of a single heat sealing interface.

[0005] TECHNICAL SCHEME

[0006] To solve the above problems, the technical scheme provided by the utility model is as follows:

[0007] The multi-layer linkage heat sealing device comprises a plurality of drawer-structured packaging layers arranged in parallel, each packaging layer comprising an upper clamp plate assembly, a lower clamp plate assembly, and an upper execution upright and a lower execution upright connected to each packaging layer through side transmission, the upper execution upright is fixedly connected with the upper clamp plate assembly of each packaging layer, the lower execution upright is fixedly connected with the lower clamp plate assembly of each packaging layer, the ends of the upper execution upright and the lower execution upright are provided with transmission diamonds, the middle part of the transmission diamonds is provided with a fixed hinge point, the two ends of the transmission diamonds are respectively rotatably connected to the upper execution upright and the lower execution upright through crank wheels and drive the upper execution upright and the lower execution upright to move in opposite directions, and the lower clamp plate assembly comprises a lower heating block.

[0008] Each packaging layer can independently place the products to be packaged, which greatly improves the production efficiency per unit area. The drawer-structured packaging layer facilitates the operator to quickly load and unload products, improving work efficiency. The upper execution upright and the lower execution upright are connected through the transmission diamond and can move in opposite directions, which is the key to realizing the clamping and releasing actions. The transmission diamond enables the upper and lower execution uprights to efficiently complete the opening and closing actions under the action of a power source such as a motor, thereby driving the upper and lower clamp plate assemblies to clamp and heat seal the products. The lower heating block is used to provide the necessary heat to melt the material and achieve the sealing effect.

[0009] As an option, a drawer is provided between the upper clamp plate assembly and the lower clamp plate assembly, and a pulley and a guide rail are provided below the drawer, and the drawer can be horizontally pulled out.

[0010] The drawer and its sliding system can ensure smooth and stable horizontal pulling out or pushing in by installing a pulley below the drawer and cooperating with the guide rail. Such design not only facilitates the operation of the operator when loading or unloading products, but also avoids product damage or position deviation caused by manual moving. Due to the existence of the drawer, the operator can easily access the internal area without moving the entire packaging layer, which is particularly useful for scenarios that frequently change or adjust the position of products. Flexibility: For different sizes or types of products, different packaging requirements can be adapted by simply adjusting the position of the drawer, increasing the flexibility and scope of application of the machine.

[0011] As an option, a pressing plate is provided above the drawer, and a pressing cylinder is connected to the pressing plate.

[0012] By controlling the action of the pressing plate through the pressing cylinder, more precise pressure control over the product can be achieved, ensuring consistent pressure during each packaging process and improving packaging quality. The pressing plate can fix the product in the correct position before packaging, preventing displacement during the heat sealing process and avoiding the production of defective products or damage to the product. The pressing cylinder can adjust the pressing force according to the requirements of different products, allowing the device to adapt to a wider range of product packaging needs. The automated pressing mechanism can speed up the packaging process and reduce the time for manual intervention, thereby improving overall production efficiency. Automation reduces the opportunity for operators to directly contact the heat sealing area, reducing safety risks.

[0013] As an option, the upper clamp plate assembly includes a silica gel foam plate that is pressed against the heating sheet, and the silica gel foam plate is provided with a spring inside.

[0014] The spring inside the silica gel foam plate provides additional cushioning, absorbing some of the impact force during clamping and protecting sensitive or fragile products from damage. At the same time, the elasticity of the spring can help maintain the appropriate pressure between the upper clamp plate assembly and the lower clamp plate assembly, ensuring sealing effectiveness. With the presence of the silica gel foam plate and the spring, the upper clamp plate assembly can better adapt to products of different thicknesses, even when multiple products of different thicknesses are processed in one operation, ensuring that each product receives the appropriate pressing force. The soft nature of the silica gel foam plate can fill the small gaps between the upper clamp plate assembly and the product, creating a better sealing environment and improving the quality of heat sealing.

[0015] As an option, the distance between the fixed hinge point in the middle of the transmission rhombus and the rotating connection points at both ends is proportional.

[0016] The proportional distance between the fixed hinge point and the rotating connection points at both ends controls the synchronized and proportional symmetry of the movement of the upper and lower execution vertical plates. This helps maintain the parallelism between the upper and lower clamp plate assemblies, ensuring uniform pressure distribution during heat sealing, and the position of the heat seal can be controlled by the proportional relationship on the transmission rhombus.

[0017] As an option, the distance between the fixed hinge point in the middle of the transmission rhombus and the rotating connection points at both ends is not proportional, and the ratio of the distance from the rotating connection point of the lower execution vertical plate to the fixed hinge point to the distance from the rotating connection point of the upper execution vertical plate to the fixed hinge point ranges from 1:2 to 3:1.

[0018] The distance between the middle fixed hinge point and the two end rotating connection points of the transmission rhombus is not in proportion, which makes the upper and lower execution vertical plates achieve nonlinear motion trajectory during the movement, better adapting to the needs of different packaging layers. The ratio of the distance from the rotating connection point of the lower execution vertical plate to the fixed hinge point to the distance from the rotating connection point of the upper execution vertical plate to the fixed hinge point ranges from 1:2 to 3:1. The ratio within this range can accurately control the movement speed and stroke of the upper and lower clamping plate assemblies, ensure that the heat sealing position is the same or similar to the sample original position, avoid interference and expand the space, and obtain the best heat sealing effect for each packaging layer.

[0019] As an option, a clamping groove is arranged on the lower heating block along the length direction, and a heating sheet is clamped in the clamping groove, and both ends of the heating sheet are connected with an electrified column.

[0020] The clamping groove on the lower heating block is arranged along the length direction, ensuring that the heating sheet can be accurately inserted and fixed in the predetermined position, avoiding displacement or loosening of the heating sheet during use. The clamping and connecting design of the clamping groove and the heating sheet makes the heating sheet firmly fixed on the lower heating block, ensuring that the heating sheet remains stable during work and improving the uniformity and consistency of heating. The two ends of the heating sheet are directly electrified through the electrified column, which can achieve rapid and uniform heating. This way makes the heating sheet quickly reach the set temperature, and the temperature control is more accurate.

[0021] As an option, the device includes a support assembly, the upper clamping plate assembly includes an upper adapter plate, the upper adapter plate is connected to the support assembly through rail sliding, the lower clamping plate assembly includes a lower adapter plate, the lower adapter plate is connected to the support assembly through rail sliding, and the upper adapter plate and the lower adapter plate are located on the side of the device and used for guiding the clamping plate assembly.

[0022] The support assembly is the foundation of the entire device, used to fix and support all moving parts, ensuring their stability during movement. The main function of the upper adapter plate is to serve as a moving platform for the upper clamping plate assembly, which slides through the rail to ensure the precise movement of the upper clamping plate assembly in the vertical direction. The lower adapter plate has a similar function to the upper adapter plate, but it is responsible for supporting the lower clamping plate assembly and ensuring its precise movement in the vertical direction. These two adapter plates are located on the side of the device and mainly serve as guides to ensure that the upper and lower clamping plate assemblies always remain parallel and aligned during movement. Through rail sliding connection, the upper and lower adapter plates can effectively guide the movement of the clamping plate assemblies, avoiding poor sealing or product damage caused by deviation.

[0023] Advantages

[0024] Compared with the prior art, the technical scheme has the beneficial effects that:

[0025] The packaging layer of the drawer structure provided by the technical scheme comprises an upper clamping plate assembly, a lower clamping plate assembly and an upper execution vertical plate and a lower execution vertical plate for transmitting every packaging layer on the side surface, the upper execution vertical plate is fixedly connected with the upper clamping plate assembly of every packaging layer, the lower execution vertical plate is fixedly connected with the lower clamping plate assembly of every packaging layer, the end part of the upper execution vertical plate and the lower execution vertical plate is provided with a transmission diamond piece, the middle part of the transmission diamond piece is provided with a fixed hinge point, the two ends of the transmission diamond piece are respectively rotatably connected to the upper execution vertical plate and the lower execution vertical plate through a crank wheel and drive the upper execution vertical plate and the lower execution vertical plate to move in opposite directions, and the lower clamping plate assembly comprises a lower heating block. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The structure diagram of the multi-layer linkage heat sealing device is provided for the embodiment of the utility model;

[0027] Figure 2 The cross section diagram of the multi-layer linkage heat sealing device is provided for the embodiment of the utility model;

[0028] Figure 3 The local cross section diagram of the multi-layer linkage heat sealing device is provided for the embodiment of the utility model;

[0029] Figure 4 The local diagram of the multi-layer linkage heat sealing device is provided for the embodiment of the utility model;

[0030] Figure 5 The execution cylinder and other components diagram of the multi-layer linkage heat sealing device is provided for the embodiment of the utility model;

[0031] Figure 6 The local diagram of the transmission diamond piece of the multi-layer linkage heat sealing device is provided for the embodiment of the utility model;

[0032] Figure 7 The enlarged view of the transmission diamond piece of the multi-layer linkage heat sealing device is provided for the embodiment of the utility model;

[0033] 1, support assembly; 2, upper clamp plate assembly; 3, lower clamp plate assembly; 4, track; 5, upper execution vertical plate; 6, lower execution vertical plate; 7, transmission diamond; 8, upper crank wheel; 9, lower crank wheel; 10, drawer; 11, handle; 12, silica gel foam plate; 13, lower heating block; 14, compression plate; 15, heating sheet; 16, upper adapter plate; 17, lower adapter plate; 18, sample; 19, execution cylinder; 1901, execution connecting rod; 20, compression cylinder; 2001, compression connecting rod; 2002, compression carriage; 21, cylinder fixing frame. DETAILED DESCRIPTION

[0034] In order to further understand the content of the present application, the present application will be described in detail in conjunction with the drawings and examples.

[0035] Embodiment

[0036] In conjunction with the drawings Figure 1 , the multi-layer linkage heat sealing device comprises a plurality of drawer structure packaging layers arranged in parallel, the packaging layer comprises an upper clamp plate assembly 2 and a lower clamp plate assembly 3, the device further comprises an upper execution vertical plate 5 and a lower execution vertical plate 6 connected to each packaging layer on the side, the upper execution vertical plate 5 is fixedly connected with the upper clamp plate assembly 2 of each packaging layer, the lower execution vertical plate 6 is fixedly connected with the lower clamp plate assembly 3 of each packaging layer, the end of the upper execution vertical plate 5 and the lower execution vertical plate 6 is provided with a transmission diamond 7, the middle part of the transmission diamond 7 is provided with a fixed hinge point, the two ends of the transmission diamond 7 are respectively connected to the upper execution vertical plate 5 and the lower execution vertical plate 6 through the crank wheel and drive the upper execution vertical plate 5 and the lower execution vertical plate 6 to move in opposite directions, forming a lever structure. The support assembly 1 of the device is a multi-layer structure similar to a bookshelf, and the packaging layer is located on each layer. In this embodiment, two support assemblies 1 are arranged side by side and connected together. The front of the side edge of the support assembly 1 is provided with a safety baffle for blocking the packaging layer drawer 10, the safety baffle is rotatably arranged, and the two ends are connected with an induction adapter block. When the safety baffle is in place, i.e. all the drawers 10 are returned to the home position, the heat sealing is started, improving the safety.

[0037] In conjunction with the drawings Figures 2-5The upper clamping plate assembly 2 and the lower clamping plate assembly 3 are provided with a pull-out plate 10, the pull-out plate 10 is provided below with a pulley and a guide rail, the pull-out plate 10 can be pulled out horizontally, and the sample 18 is located on the pull-out plate 10. The pull-out plate 10 is provided above with a pressing plate 14, and the pressing plate 14 is connected with a pressing cylinder 20. The pull-out plate 10 is extended and fixed with a pull handle 11. The right side of the pull-out plate 10 is provided with a silica gel foaming plate 12 and a lower heating block 13, which are correspondingly matched in position and can be pressed and heat-sealed, and the lower heating block 13 is provided with a heating sheet 15. The device comprises a supporting assembly 1, the upper clamping plate assembly 2 comprises an upper adapter plate 16, the upper adapter plate 16 is slidably connected to the supporting assembly 1 through a track 4, the lower clamping plate assembly 3 comprises a lower adapter plate 17, the lower adapter plate 17 is slidably connected to the supporting assembly 1 through the track 4, and the upper adapter plate 16 and the lower adapter plate 17 are located on the side of the device and are used for guiding the clamping plate assembly. Both ends of the silica gel foaming plate 12 are fixed to the upper adapter plate 16, and both ends of the lower heating block 13 are fixed to the lower adapter plate 17.

[0038] In combination with the accompanying drawings Figure 5 The top of the upper execution vertical plate 5 is connected with an execution cylinder 19 through an execution connecting rod 1901, and each layer of the pressing plate 14 is fixed to a pressing slide 2002 on the side, and the top of the pressing slide 2002 is connected to the pressing cylinder 20 through a pressing connecting rod 2001. The execution cylinder 19 and the pressing cylinder 20 are both fixed to a cylinder fixing frame 21. This part of the system is a symmetrical structure, and is provided on both sides of the device.

[0039] In combination with the accompanying drawings Figures 6-7 The middle part of the transmission diamond 7 is provided with a fixed hinge point, and both ends of the transmission diamond 7 are rotatably connected to the upper execution vertical plate 5 and the lower execution vertical plate 6 through crank wheels and drive the upper execution vertical plate 5 and the lower execution vertical plate 6 to move in opposite directions, forming a lever structure. The distance between the fixed hinge point in the middle part and the rotating connection points at both ends is proportional.

[0040] The distance between the fixed hinge point in the middle part of the transmission diamond 7 and the rotating connection points at both ends is not proportional, the distance from the rotating connection point of the lower execution vertical plate 6 to the fixed hinge point is proportional to the distance from the rotating connection point of the upper execution vertical plate 5 to the fixed hinge point in the range of 1:2-3:1. In this embodiment, the distance from the rotating connection point of the lower execution vertical plate 6 to the fixed hinge point is proportional to the distance from the rotating connection point of the upper execution vertical plate 5 to the fixed hinge point in the range of 1:2, 2:1 or 3:1, as shown in FIG. 6, the proportion is 2:1. Figure 7

[0041] ​The lower heating block 13 is provided with a clamping groove arranged along the length direction, and the clamping groove is matched with the heating sheet 15. The two ends of the heating sheet 15 are connected with the current-carrying column and are electrified. By arranging the clamping groove on the lower heating block 13 and clamping the heating sheet 15 in the clamping groove, the convenience of installation and replacement of the heating sheet 15 is improved, and the uniformity and reliability of heating are ensured. The clamping groove is arranged along the length direction on the lower heating block 13 for fixing the heating sheet 15. The clamping groove ensures that the heating sheet 15 can be firmly fixed on the lower heating block 13 after installation, preventing loosening or falling off due to vibration or movement during the heat sealing process. The shape and size of the clamping groove should match the heating sheet 15, ensuring that the heating sheet 15 can tightly fit the lower heating block 13 and improve the heat conduction efficiency. The heating sheet 15 clamped in the clamping groove is the part that actually generates heat. The heating sheet 15 generates heat by electrification, which is used to melt the heat sealing material and achieve the sealing of the product. The heating sheet 15 is usually made of materials with good high-temperature resistance and thermal conductivity, such as nickel-chromium alloy or stainless steel. The two ends of the heating sheet 15 are connected with the current-carrying column, and the current-carrying column is electrified. The current-carrying column has good electrical conductivity and high-temperature resistance, and is usually made of copper or silver-plated copper to reduce resistance and heat loss.

[0042] The above description of the utility model and its embodiments is illustrative and not limiting, and the drawings shown are only one of the embodiments of the utility model, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by it, without departing from the creative purpose of the utility model, similar structural modes and embodiments can be designed without creativity, which should belong to the protection scope of the utility model.

Claims

1. A multi-layer interlinked heat sealing device, characterized in that, The packaging layer comprises a plurality of parallel arranged drawer structures, the packaging layer comprises an upper clamp plate assembly, a lower clamp plate assembly, and an upper execution upright plate and a lower execution upright plate connected by side transmission, the upper execution upright plate is fixed with the upper clamp plate assembly of each packaging layer, the lower execution upright plate is fixed with the lower clamp plate assembly of each packaging layer, the end of the upper execution upright plate and the lower execution upright plate is provided with a transmission diamond, the middle of the transmission diamond is provided with a fixed hinge point, the two ends of the transmission diamond are respectively connected to the upper execution upright plate and the lower execution upright plate by a crank wheel and drive the upper execution upright plate and the lower execution upright plate to move in opposite directions, and the lower clamp plate assembly comprises a lower heating block.

2. The multi-layer, linked heat sealing apparatus of claim 1, wherein, The upper clamp plate assembly and the lower clamp plate assembly are provided with a drawer, the lower side of the drawer is provided with a pulley and a guide rail, and the drawer can be horizontally drawn out.

3. The multi-layer, linked heat sealing apparatus of claim 2, wherein, The upper side of the drawer is provided with a pressing plate, and the pressing plate is connected with a pressing cylinder.

4. The multi-tiered, linked heat sealing apparatus of claim 1, wherein, The upper clamp plate assembly comprises a silica gel foam plate, the silica gel foam plate is pressed with a heating sheet, and the silica gel foam plate is provided with a spring.

5. The multi-tiered, linked heat sealing apparatus of claim 1, wherein, The distance between the fixed hinge point in the middle of the transmission diamond and the rotating connection point at both ends is proportional.

6. The multi-tiered, linked heat sealing apparatus of claim 5, wherein, The distance between the fixed hinge point in the middle of the transmission diamond and the rotating connection point at both ends is not proportional, the distance from the rotating connection point of the lower execution upright plate to the fixed hinge point is proportional to the distance from the rotating connection point of the upper execution upright plate to the fixed hinge point, and the proportional range is 1:2-3:

1.

7. The multi-tiered, linked heat sealing apparatus of claim 1, wherein, The lower heating block is provided with a clamping groove arranged along the length direction, the clamping groove is matched with a heating sheet, and the two ends of the heating sheet are connected with an electrified column and are electrified.

8. The multi-layer, linked heat sealing apparatus of any one of claims 1 to 7, wherein, The device comprises a support assembly, the upper clamp plate assembly comprises an upper adapter plate, the upper adapter plate is connected to the support assembly by track sliding, the lower clamp plate assembly comprises a lower adapter plate, the lower adapter plate is connected to the support assembly by track sliding, and the upper adapter plate and the lower adapter plate are located on the side of the device and are used for guiding the clamp plate assembly.

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