Barrier film tensioning device

Abstract

The utility model discloses a barrier film tensioning device, including base plate and tensioning mechanism, the tensioning mechanism includes front tensioning mechanism, rear tensioning mechanism, left tensioning mechanism and right tensioning mechanism, the front tensioning mechanism is arranged on the front side of base plate, the rear tensioning mechanism is arranged on the rear side of base plate, the left tensioning mechanism is arranged on the left side of base plate, the right tensioning mechanism is arranged on the right side of base plate, and the right tensioning mechanism is arranged on the right side of base plate. The right tensioning mechanism is arranged on the right side of the base plate, and a cavity used for tensioning the barrier film is formed among the front tensioning mechanism, the rear tensioning mechanism, the left tensioning mechanism and the right tensioning mechanism. According to the utility model, a plurality of tensioning mechanisms are arranged to tension the barrier film in different directions, so that the curl phenomenon of the barrier film during heat sealing is reduced, and the heat sealing effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum insulation board preparation, in particular to a barrier film tensioning device. Background Art

[0002] Vacuum insulation board is a new type of high-efficiency insulation material made based on the principle of vacuum insulation. It combines the advantages of vacuum insulation, microporous insulation and multi-layer insulation, and thus has outstanding insulation effect. It is now widely used in refrigerators, water heaters, cold storage, house construction and other aspects.

[0003] Vacuum insulation panels typically consist of an upper barrier film, a lower barrier film, and a core material. During production, the underside of the core material is placed onto the lower barrier film, and then the upper barrier film is placed on top of the core material. After vacuuming, the upper and lower barrier films are heat-sealed together. During heat sealing, the upper and lower barrier films may curl, affecting the heat seal. Utility Model Content

[0004] Based on the above-mentioned problems existing in the prior art, the purpose of the embodiments of the present application is to provide a barrier film tensioning device, which, by setting up multiple tensioning mechanisms, can tension the barrier film in different directions, thereby reducing the curling phenomenon of the barrier film during heat sealing and improving the heat sealing effect.

[0005] The technical solution adopted by the present application to solve its technical problems is: a barrier film tensioning device, including a substrate and a tensioning mechanism, the tensioning mechanism including a front tensioning mechanism, a rear tensioning mechanism, a left tensioning mechanism and a right tensioning mechanism, the front tensioning mechanism is arranged on the front side of the substrate, the rear tensioning mechanism is arranged on the rear side of the substrate, the left tensioning mechanism is arranged on the left side of the substrate, and the right tensioning mechanism is arranged on the right side of the substrate, and a cavity for tensioning the barrier film is formed between the front tensioning mechanism, the rear tensioning mechanism, the left tensioning mechanism and the right tensioning mechanism.

[0006] Furthermore, the tensioning mechanism includes a fixed seat, a sliding rail, a tensioning seat and a tensioning spring. The fixed seat is arranged on the base plate, the sliding rail is arranged on the base plate, the tensioning seat can be slidably arranged on the sliding rail, one end of the tensioning spring is connected to the tensioning seat, and the other end of the tensioning spring is connected to the fixed seat so that the tensioning seat has a tendency to move outward.

[0007] Furthermore, the tensioning mechanism also includes a top plate, a lower pressure block and a driving assembly, the top plate is arranged on the tensioning seat, the top plate is located below the lower pressure block, a clamping cavity is formed between the top plate and the lower pressure block, and the driving assembly is arranged on the tensioning seat, the driving assembly is connected to the lower pressure block and drives the lower pressure block close to or away from the top plate.

[0008] Furthermore, the driving assembly includes a tensioning frame, a driving frame, a driving handle and a connecting rod. The tensioning frame is arranged on the tensioning seat, the driving frame is rotatably arranged on the tensioning frame, the lower pressure block is arranged on the driving frame, the end of the driving handle is rotatably arranged on the driving frame, one end of the connecting rod is rotatably connected to the middle part of the driving handle, and the other end of the connecting rod is rotatably connected to the tensioning frame.

[0009] Furthermore, the driving frame includes a first plate body and a second plate body, the first plate body and the second plate body are arranged opposite to each other, and an adjustment cavity is formed between the first plate body and the second plate body.

[0010] Furthermore, the lower pressure block is arranged on the driving frame through an adjusting assembly, and the adjusting assembly includes an adjusting rod, a first adjusting nut, a first adjusting block, a second adjusting block and a second adjusting nut. The adjusting rod is arranged on the lower pressure block and passes through the adjusting cavity. The first adjusting block is arranged on the adjusting rod, and the first adjusting nut is arranged on the adjusting rod, and the first adjusting block is pressed against the bottom of the first plate body and the second plate body. The second adjusting block is arranged on the adjusting rod, and the second adjusting nut is arranged on the adjusting rod, and the second adjusting block is pressed against the top of the first plate body and the second plate body.

[0011] Furthermore, a slider is provided on the substrate, and the front side of the substrate is concave to form an avoidance groove.

[0012] Furthermore, the number of the front tensioning mechanisms is two, the number of the rear tensioning mechanisms is five, the number of the left tensioning mechanisms is two, and the number of the right tensioning mechanisms is two.

[0013] Furthermore, a first soft pad is provided at the bottom of the lower pressing block, and a second soft pad is provided at the top of the top plate.

[0014] The beneficial effect of the present application is that when making a vacuum insulation panel, the barrier film is placed in the cavity, and then the left tensioning mechanism tightens the left side of the barrier film, the right tensioning mechanism tightens the right side of the barrier film, the front tensioning mechanism tightens the front side of the barrier film, and the rear tensioning mechanism tightens the rear side of the barrier film, thereby tightening the edges of the barrier film, reducing curling of the barrier film during heat sealing, and improving the heat sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of the barrier film tensioning device in this application;

[0016] Figure 2 This is a schematic structural diagram of the barrier film tensioning device in this application from another angle;

[0017] Figure 3 This is a schematic diagram of the structure of the tensioning mechanism in this application;

[0018] Figure 4This is a schematic diagram of the connection between the barrier film tensioning device and the frame in this application.

[0019] Description of Reference Numerals

[0020] Base plate 1, slider 11, avoidance groove 12, tensioning mechanism 2, front tensioning mechanism 2a, rear tensioning mechanism 2b, left tensioning mechanism 2c, right tensioning mechanism 2d, fixed seat 21, slide rail 22, tensioning seat 23, tensioning spring 24, top plate 25, lower pressure block 26, drive assembly 27, tensioning frame 271, drive frame 272, first plate body 2721, second plate body 2722, drive handle 273, connecting rod 274, adjustment assembly 28, adjustment rod 281, first adjusting nut 282, first adjusting block 283, second adjusting block 284, second adjusting nut 285. DETAILED DESCRIPTION

[0021] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation methods in conjunction with the accompanying drawings.

[0022] like Figures 1 to 4 As shown, a barrier film tensioning device of the present invention includes a substrate 1 and a tensioning mechanism 2, the tensioning mechanism 2 includes a front tensioning mechanism 2a, a rear tensioning mechanism 2b, a left tensioning mechanism 2c and a right tensioning mechanism 2d, the front tensioning mechanism 2a is arranged on the front side of the substrate 1, the rear tensioning mechanism 2b is arranged on the rear side of the substrate 1, the left tensioning mechanism 2c is arranged on the left side of the substrate 1, and the right tensioning mechanism 2d is arranged on the right side of the substrate 1, and a cavity for tensioning the barrier film is formed between the front tensioning mechanism 2a, the rear tensioning mechanism 2b, the left tensioning mechanism 2c and the right tensioning mechanism 2d.

[0023] In this way, the utility model involves a barrier film tensioning device. When making a vacuum insulation panel, the barrier film is placed in the cavity, and then the left tensioning mechanism 2c tensions the left side of the barrier film, the right tensioning mechanism 2d tensions the right side of the barrier film, the front tensioning mechanism 2a tensions the front side of the barrier film, and the rear tensioning mechanism 2b tensions the rear side of the barrier film, thereby tensioning the edges of the barrier film, reducing curling of the barrier film during heat sealing, and improving the heat sealing effect.

[0024] Optionally, the tensioning mechanism 2 includes a fixed seat 21, a slide rail 22, a tensioning seat 23, and a tensioning spring 24. The fixed seat 21 is disposed on the base plate 1, the slide rail 22 is disposed on the base plate 1, and the tensioning seat 23 is slidably disposed on the slide rail 22. One end of the tensioning spring 24 is connected to the tensioning seat 23, and the other end of the tensioning spring 24 is connected to the fixed seat 21, so that the tensioning seat 23 has a tendency to move outward. The fixed seat 21 and the tensioning seat 23 may be provided with connecting posts (not shown in the figure) to facilitate the connection of the tensioning spring 24 to the fixed seat 21 and the tensioning seat 23.

[0025] By providing the tensioning spring 24, after the barrier film is pulled, the tensioning spring 24 causes the tensioning seat 23 to have a tendency to move outward, thereby driving the barrier film outward, tightening the barrier film, and reducing curling of the barrier film during heat sealing.

[0026] Furthermore, the tensioning mechanism 2 also includes a top plate 25, a lower pressing block 26, and a drive assembly 27. The top plate 25 is disposed on the tensioning seat 23 and is located below the lower pressing block 26. A clamping cavity is formed between the top plate 25 and the lower pressing block 26. The drive assembly 27 is disposed on the tensioning seat 23 and is connected to the lower pressing block 26 to drive the lower pressing block 26 toward or away from the top plate 25. After the barrier film is placed between the lower pressing block 26 and the top plate 25, the drive assembly 27 is operated to move the lower pressing block 26 toward the top plate 25, so that the upper side of the barrier film is in close contact with the lower pressing block 26 and the lower side of the barrier film is in close contact with the top plate 25, thereby clamping the barrier film. After fabrication is completed, the drive assembly 27 is operated to move the lower pressing block 26 away from the top plate 25, facilitating removal of the fabricated vacuum insulation panel.

[0027] The driving assembly 27 includes a tensioning frame 271, a driving frame 272, a driving handle 273, and a connecting rod 274. The tensioning frame 271 is mounted on the tensioning seat 23, the driving frame 272 is rotatably mounted on the tensioning frame 271, the lower pressing block 26 is mounted on the driving frame 272, the end of the driving handle 273 is rotatably mounted on the driving frame 272, one end of the connecting rod 274 is rotatably connected to the middle portion of the driving handle 273, and the other end of the connecting rod 274 is rotatably connected to the tensioning frame 271. During operation, force can be applied to the driving handle 273 to rotate the driving frame 272, and the lower pressing block 26 is mounted on the driving frame 272. The rotation of the driving frame 272 drives the lower pressing block 26 toward or away from the top plate 25, thereby clamping or releasing the barrier film.

[0028] In this embodiment, the drive frame 272 includes a first plate 2721 and a second plate 2722. The first plate 2721 and the second plate 2722 are arranged opposite each other, and an adjustment cavity is formed between the first plate 2721 and the second plate 2722. The provision of the adjustment cavity, which is in the shape of a rectangular parallelepiped, allows the position of the lower pressure block 26 to be adjusted, thereby adapting to different specifications of barrier films.

[0029] In this embodiment, the lower pressure block 26 is mounted on the drive frame 272 via an adjustment assembly 28. The adjustment assembly 28 includes an adjustment rod 281, a first adjustment nut 282, a first adjustment block 283, a second adjustment block 284, and a second adjustment nut 285. The adjustment rod 281 is mounted on the lower pressure block 26 and extends through an adjustment cavity. The first adjustment block 283 is mounted on the adjustment rod 281, and the first adjustment nut 282 is mounted on the adjustment rod 281, so that the first adjustment block 283 presses against the bottom of the first plate 2721 and the second plate 2722. The second adjustment block 284 is mounted on the adjustment rod 281, and the second adjustment nut 285 is mounted on the adjustment rod 281, so that the second adjustment block 284 presses against the top of the first plate 2721 and the second plate 2722. After the adjustment rod 281 is adjusted to a suitable position in the adjustment cavity, the adjustment rod 281 is fixed by tightening the first adjustment nut 282 and the second adjustment nut 285 to prevent the lower pressure block 26 from moving.

[0030] By providing the adjustment component 28 , the height of the lower pressing block 26 can be adjusted to be suitable for barrier films of different thicknesses.

[0031] To allow the substrate 1 to slide smoothly into or out of the rack, a slider 11 is provided on the substrate 1 in this example, and a recessed groove 12 is formed on the front side of the substrate 1. The slider 11 and the corresponding rails on the rack enable smooth movement of the substrate 1, while the recessed groove 12 prevents interference between the substrate 1 and the heating device on the rack.

[0032] In this embodiment, two front tensioning mechanisms 2a are provided, five rear tensioning mechanisms 2b are provided, two left tensioning mechanisms 2c are provided, and two right tensioning mechanisms 2d are provided. Of course, the number of front tensioning mechanisms 2a, rear tensioning mechanisms 2b, left tensioning mechanisms 2c, and right tensioning mechanisms 2d can also be provided in other numbers as needed. By providing multiple front tensioning mechanisms 2a, rear tensioning mechanisms 2b, left tensioning mechanisms 2c, and right tensioning mechanisms 2d, the barrier film can be tightened at multiple locations, achieving a better tightening effect.

[0033] In this embodiment, a first soft pad is provided at the bottom of the lower pressure block 26, and a second soft pad is provided at the top of the top plate 25. By providing the first soft pad and the second soft pad, after clamping the barrier film, the first soft pad is tightly attached to the upper side of the barrier film, and the second soft pad is tightly attached to the lower side of the barrier film, thereby effectively reducing the situation where the barrier film surface is damaged when the barrier film is tightened.

[0034] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the description and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A barrier film tensioning device, characterized in that: It includes a substrate and a tensioning mechanism, and the tensioning mechanism includes a front tensioning mechanism, a rear tensioning mechanism, a left tensioning mechanism and a right tensioning mechanism. The front tensioning mechanism is arranged on the front side of the substrate, the rear tensioning mechanism is arranged on the rear side of the substrate, the left tensioning mechanism is arranged on the left side of the substrate, and the right tensioning mechanism is arranged on the right side of the substrate. A cavity for tightening the barrier film is formed between the front tensioning mechanism, the rear tensioning mechanism, the left tensioning mechanism and the right tensioning mechanism.

2. The barrier film tensioning device according to claim 1, wherein: The tensioning mechanism includes a fixed seat, a slide rail, a tensioning seat and a tensioning spring. The fixed seat is arranged on the base plate, the slide rail is arranged on the base plate, the tensioning seat can be slidably arranged on the slide rail, one end of the tensioning spring is connected to the tensioning seat, and the other end of the tensioning spring is connected to the fixed seat so that the tensioning seat has a tendency to move outward.

3. The barrier film tensioning device according to claim 2, wherein: The tensioning mechanism also includes a top plate, a lower pressure block and a driving assembly. The top plate is arranged on the tensioning seat, the top plate is located below the lower pressure block, and a clamping cavity is formed between the top plate and the lower pressure block. The driving assembly is arranged on the tensioning seat, the driving assembly is connected to the lower pressure block and drives the lower pressure block close to or away from the top plate.

4. The barrier film tensioning device according to claim 3, wherein: The driving assembly includes a tensioning frame, a driving frame, a driving handle and a connecting rod. The tensioning frame is arranged on the tensioning seat, the driving frame is rotatably arranged on the tensioning frame, the lower pressure block is arranged on the driving frame, the end of the driving handle is rotatably arranged on the driving frame, one end of the connecting rod is rotatably connected to the middle part of the driving handle, and the other end of the connecting rod is rotatably connected to the tensioning frame.

5. The barrier film tensioning device according to claim 4, characterized in that: The driving frame includes a first plate and a second plate. The first plate and the second plate are arranged opposite to each other, and an adjustment cavity is formed between the first plate and the second plate.

6. The barrier film tensioning device according to claim 5, characterized in that: The lower pressure block is arranged on the driving frame through an adjusting assembly, and the adjusting assembly includes an adjusting rod, a first adjusting nut, a first adjusting block, a second adjusting block and a second adjusting nut. The adjusting rod is arranged on the lower pressure block and passes through the adjusting cavity. The first adjusting block is arranged on the adjusting rod, and the first adjusting nut is arranged on the adjusting rod, and the first adjusting block is pressed against the bottom of the first plate body and the second plate body. The second adjusting block is arranged on the adjusting rod, and the second adjusting nut is arranged on the adjusting rod, and the second adjusting block is pressed against the top of the first plate body and the second plate body.

7. The barrier film tensioning device according to claim 1, wherein: A slider is arranged on the base plate, and the front side of the base plate is concave to form an avoidance groove.

8. The barrier film tensioning device according to claim 1, wherein: The number of the front tensioning mechanisms is two, the number of the rear tensioning mechanisms is five, the number of the left tensioning mechanisms is two, and the number of the right tensioning mechanisms is two.

9. The barrier film tensioning device according to claim 3, wherein: A first soft pad is provided at the bottom of the lower pressing block, and a second soft pad is provided at the top of the top plate.

Images