Adjustable edge sealing heating structure of vacuum insulated panel

Abstract

The adjustable edge sealing heating structure of the vacuum heat insulation plate comprises two parallel first heating sets arranged in the length direction of a heat sealing device and two movable parallel second heating sets arranged in the width direction of the heat sealing device, and the first heating sets and the second heating sets are each provided with a plurality of heating units. The heating units are arranged in a rotatable and adjustable mode, each heating unit comprises a heating plate, a connecting frame and a steering plate, the heating plates are connected to the steering plates, arc-shaped grooves are formed in the connecting frames, the steering plates and the connecting frames are rotatably installed through the arc-shaped grooves, and the connecting frames of the second heating set are fixed to a movable distance adjusting mechanism. The distance adjusting mechanism is used for achieving the purpose that the second heating set synchronously moves close to or away from the heat sealing device in the length direction of the heat sealing device, and the purpose that the second heating set adjusts and heats bottom shell edge sealing strip glue in the heat sealing device is achieved. According to the utility model, the problem that the glue of the edge sealing strip of the bottom shell is rapidly and thoroughly exhausted after being heated under the vacuum environment condition is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat sealing of vacuum insulation panels, in particular to an adjustable edge sealing heating structure of a vacuum insulation panel. Background Art

[0002] The existing vacuum four-side sealing equipment for packaging vacuum insulation panels is only aimed at heat sealing between plastic materials. For vacuum insulation panels with bottom shells with glue on the edge seals, the glue is not heated thoroughly due to the use of mold temperature oil heating on a conventional mold. After the vacuum insulation panel products are heat-sealed, the small molecules in the glue are vacuum-degraded and volatilized into the core material of the vacuum insulation panel under the internal vacuum environment of the vacuum insulation panel. The vacuum degree inside the core material is affected, reducing the actual service life of the vacuum insulation panel. Therefore, for vacuum insulation panels with bottom shells with glue, the glue on the edge seals needs to be heated before vacuum heat sealing to remove and discharge the small molecules in the glue in advance, thereby ensuring that the glue is less degraded or less volatilized after the vacuum insulation panel is vacuum heat-sealed, thereby increasing the service life of the vacuum insulation panel.

[0003] To this end, it is necessary to design an edge sealing heating structure inside the vacuum four-side sealing equipment to uniformly heat and exhaust the glue on the bottom shell, so as to ensure that the vacuum insulation panel with glue on the bottom shell can better achieve the purpose of rapid and measured exhaust of glue between vacuum heat sealing. Summary of the invention

[0004] The utility model aims to provide an adjustable edge sealing heating structure of a vacuum insulation panel, aiming to solve the problem of rapid and complete exhaust of glue of a vacuum insulation panel with a glue bottom shell.

[0005] In view of this, the technical solution provided by the utility model is: an adjustable edge sealing heating structure of a vacuum insulation panel, comprising: two groups of first heating groups parallel to each other arranged in the length direction of the heat sealing device and two groups of movable and parallel second heating groups arranged in the width direction of the heat sealing device, the first heating group and the second heating group are both provided with a plurality of heating units, the heating units are rotatably adjustable, each of the heating units comprises a heating plate, a connecting frame, and a steering plate, the heating plate is connected to the steering plate, the connecting frame is provided with an arc groove, the steering plate and the connecting frame are rotatably installed through the arc groove, and the second heating group, its connecting frame is fixed on a movable distance adjustment mechanism, the distance adjustment mechanism comprises two pairs The screw rods and each pair of the screw rods are connected to form a synchronously rotating whole through a coupling, each pair of the screw rods are mounted on both sides of the length direction of the heat sealing device, the two screw rods of each pair of screw rods are set with opposite screw thread directions, the ends of the screw rods are rotatably connected through an outer spherical ball bearing with a seat, one of the screw rods is also connected to a power mechanism for its rotation, and an aluminum rod for installing the heating unit is provided between the paired screw rods on both sides, the aluminum rod is movably connected to the screw rod through a screw nut, and through the rotation of the power mechanism, the screw rod drives the second heating group on the aluminum rods on both sides to move synchronously closer or farther in the length direction of the heat sealing device, thereby achieving the purpose of the heating unit for distance adjustment and heating of the bottom shell edge seal glue in the heat sealing device.

[0006] Furthermore, the power mechanism includes a motor, and the motor is connected to the screw rod through a steering gear, a linkage shaft, and a coupling.

[0007] Furthermore, the heating plate has an elastic buckle on its back, and the heating plate is mounted on the steering plate by the elastic buckle. The installation method of the heating plate by the elastic buckle greatly improves the use and installation of the edge sealing heating structure.

[0008] Furthermore, the heating unit is an infrared ceramic heater, which evenly heats the glue of the edge seal on the bottom shell in a vacuum environment in the form of infrared heat radiation, thereby achieving the purpose of glue exhaust.

[0009] Furthermore, the arc angle θ of the arc groove is set to 90°. Furthermore, the rotation angle of the deflection plate installed by the arc groove can be adjusted to 0-90°, which greatly increases the adjustable irradiation range of the heating unit.

[0010] The utility model utilizes the rotatable and adjustable installation of the heating unit to facilitate the adjustment of the heating effect of the heating unit on the adhesive of the edge seal of the bottom shell, so that the volatile small molecules in the adhesive are heated and volatilized in advance by heating, thereby preventing the adhesive from volatilizing and overflowing in the product under a vacuum environment and affecting the vacuum degree of the product.

[0011] The utility model utilizes an infrared ceramic heater to heat in the form of infrared thermal radiation, thereby solving the problem of heating the glue of the edge seal of the bottom shell under vacuum conditions, and greatly improving the removal of small molecule glue of the adhesive in the heat sealing process of the vacuum insulation panel.

[0012] The utility model also provides a second heating group with an adjustable distance in the length direction of the heat sealing device, thereby ensuring that the glue of the edge sealing strip of the bottom shell in the width direction can be heated more evenly by adjusting the distance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the internal structure of the edge sealing heating structure installed in the heat sealing device.

[0014] Figure 2 It is a schematic diagram of the three-dimensional structure of the edge seal heating structure.

[0015] Figure 3 This is one of the schematic diagrams of the three-dimensional structure of the heating unit.

[0016] Figure 4 This is the second schematic diagram of the three-dimensional structure of the heating unit.

[0017] Figure 5 for Figure 3 Rear view.

[0018] Among them: 1-heat sealing device, 11-sliding plate, 2-bracket, 3-sealing door, 4-packaging tray, 5-edge sealing heating structure, 51-heating unit, 511-heating plate, 511a-elastic buckle, 512-connecting frame, 513-steering plate, 514-first screw, 515-second screw, 516-arc groove, 52-pitch adjustment mechanism, 521-motor, 522-steering gear, 523-linkage shaft, 524-coupling, 525-hollow shaft magnetic fluid sealing seat, 526-screw, 527-screw nut, 528-spherical ball bearing with seat, 529-aluminum rod. DETAILED DESCRIPTION

[0019] The following is a brief description of the implementation of the present utility model in conjunction with the accompanying drawings.

[0020] A vacuum insulation panel with adjustable edge sealing heating structure, referring to 1, the vacuum four-side equipment in this embodiment generally includes a heat sealing device 1, a bracket 2 is provided at the bottom of the heat sealing device 1, a sliding plate 11 is provided on the side of the heat sealing device 1, a sealing door 3 is slidably installed on the sliding plate 11, a packaging tray 4 is installed inside the heat sealing device 1, the packaging tray 4 is used to position and place a bottom shell that needs to be sealed on all four sides, and an edge sealing heating structure 5 for heating the glue on the edge sealing strip of the bottom shell is provided inside the heat sealing device 1. Specifically, the edge sealing heating structure 5 is arranged around the bottom shell of the packaging tray 4.

[0021] Reference Figure 2 The edge sealing heating structure 5 includes two first heating groups and two second heating groups. The two first heating groups are arranged in the length direction of the heat sealing device 1 and are parallel to each other. The two second heating groups are arranged in the width direction of the heat sealing device 1 and are parallel to each other. The second heating groups are movably arranged. Both the first heating group and the second heating group are provided with multiple heating units 51.

[0022] Reference Figure 3 , Figure 4 The heating unit 51 is rotatably adjustable. Each heating unit 51 includes a heating plate 511, a connecting frame 512, and a steering plate 513. An elastic buckle 511a is provided on the back of the heating plate 511. The heating plate 511 is mounted on the steering plate 512 by the elastic buckle 511a. The installation is convenient and quick. An arc groove 516 is provided on the connecting frame 512. The steering plate 513 and the connecting frame 512 are rotatably installed through the arc groove 516. Specifically, two screw connections can be provided between the connecting frame 512 and the steering plate 513. For example, the first screw 514 is used to preliminarily connect and position the steering plate 513. A second screw 515 is provided in the arc groove 516 centered on the first screw 514. The second screw 515 is rotated at different installation positions inside the arc groove 516 to achieve The adjustment is fixed, and the heating unit 51 is adjustable by rotating it. In this embodiment, the arc angle θ of the arc groove 516 is set to 90°. Furthermore, the rotation angle of the steering plate 513 installed by the arc setting of the arc groove 516 can be adjusted by 0-90°, which greatly improves the adjustable irradiation range of the heating unit 51 and facilitates the adjustment of the heating effect of the heating unit 51 on the adhesive of the edge seal. The volatile small molecules in the adhesive are heated and volatilized in advance by heating, so as to avoid the adhesive volatilizing and overflowing in the product under a vacuum environment and affecting the vacuum degree of the product. The heating unit 51 adopts an infrared ceramic heater, which uniformly heats the glue of the edge seal on the bottom shell by infrared thermal radiation under a vacuum environment, thereby achieving the purpose of glue exhaust.

[0023] The span of the heat sealing device 1 in the width direction is relatively long, and the size difference of the bottom shell of different models makes the heating distance between the second unit group located in the width direction of the heat sealing device 1 and the edge seal strip of the bottom shell relatively far, which in turn affects the situation that the heating unit 51 does not heat the edge seal strip in the width direction of the bottom shell in place. In this embodiment, in order to better achieve the edge seal heating effect in the width direction, the second heating group is provided with a distance adjustment mechanism 52 for adjustment, so that the second heating group can achieve the best heating effect on the edge seal heating in the width direction. Figure 2 The distance adjustment mechanism 52 includes two pairs of screw rods 526, each pair of screw rods 526 is connected to each other by a coupling 524 to form a synchronously rotating whole, each pair of screw rods 526 is mounted on both sides of the length direction of the heat sealing device 1, in order to achieve the synchronous approach or distance movement of the second heating group, the two screw rods 526 of each pair of screw rods 526 are set with opposite screw teeth directions, and the opposite screw teeth are used to achieve the synchronous approach or distance of the connected second heating group when the screw rods 526 rotate synchronously, and the ends of the screw rods 526 are rotatably connected by an outer spherical ball bearing 528 with a seat, and one of the screw rods 526 is also connected to a power mechanism for its rotation, and the power mechanism includes a motor 521, and the motor 521 is connected to the outer spherical ball bearing 528 with a seat ... 524 is connected to the screw rod 526 for transmission. An aluminum rod 529 for installing the heating unit 51 is provided between the paired screw rods 526 on both sides. The heating unit 51 is installed and connected with the aluminum rod 529 through the connecting frame 512. The aluminum rod 529 is movably connected to the screw rod 526 through the screw nut 527. By the rotation of the power mechanism, the screw rod 526 drives the second heating group on the aluminum rods 529 on both sides to move synchronously closer or farther away in the length direction of the heat sealing device 1, thereby achieving the purpose of the heating unit 51 for adjusting the distance of the bottom shell edge sealing strip glue in the heat sealing device 1. In order to ensure the sealing effect of the heat sealing station 1, in this embodiment, a hollow shaft magnetic fluid sealing seat 525 is provided to realize the transmission connection between the screw rod 526 and the power mechanism.

[0024] The above embodiments only express the implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. An adjustable edge seal heating structure of a vacuum insulation panel, characterized in that: The invention comprises two first heating groups parallel to each other arranged in the length direction of the heat sealing device and two second heating groups movable and parallel to each other arranged in the width direction of the heat sealing device, wherein the first heating group and the second heating group are both provided with a plurality of heating units, and the heating units are rotatably adjustable, and each of the heating units comprises a heating plate, a connecting frame, and a steering plate, wherein the heating plate is connected to the steering plate, an arc groove is arranged on the connecting frame, and the steering plate and the connecting frame are rotatably installed through the arc groove, and the second heating group, whose connecting frame is fixed on a movable distance adjustment mechanism, and the distance adjustment mechanism comprises two pairs of screw rods, Each pair of the screw rods is connected to form a synchronously rotating whole through a coupling, each pair of the screw rods is mounted on both sides of the length direction of the heat sealing device, the two screw rods of each pair of screw rods are set with opposite screw thread directions, the ends of the screw rods are rotatably connected through a spherical outer ball bearing with a seat, one of the screw rods is also connected to a power mechanism for its rotation, and an aluminum rod for installing the heating unit is provided between the paired screw rods on both sides, the aluminum rod is movably connected to the screw rod through a screw nut, and through the rotation of the power mechanism, the screw rod drives the second heating group on the aluminum rods on both sides to move synchronously closer or farther in the length direction of the heat sealing device.

2. The adjustable edge seal heating structure of a vacuum insulation panel according to claim 1, characterized in that: The power mechanism comprises a motor, and the motor is connected to the screw rod through a steering gear, a linkage shaft and a coupling.

3. The adjustable edge seal heating structure of a vacuum insulation panel according to claim 1, characterized in that: The heating plate has an elastic buckle at its back, and the heating plate is mounted on the steering plate by means of the elastic buckle.

4. The adjustable edge seal heating structure of a vacuum insulation panel according to claim 1, characterized in that: The heating unit is an infrared ceramic heater.

5. The adjustable edge seal heating structure of a vacuum insulation panel according to claim 1, characterized in that: The arc angle θ of the arc groove is set to 90°.

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