Core material wrapping equipment and core material wrapping method
Through core wrapping equipment and methods, the problem of folding four sides of traditional core wrapping bags is solved, and the simplified operation of folding the front and back sides of the vacuum insulation plate is achieved, which improves the bagging efficiency and product fitting.
Patent Information
- Application Number
- CN202510798830.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-16
- Publication Date
- 2025-08-15
AI Technical Summary
The traditional core material bagging method requires folding the four sides of the vacuum insulation board, which is complicated and inconvenient.
The core wrapping equipment and methods are adopted. By wrapping the barrier membrane around the core material, and after vacuuming and heat encapsulating the bag, you only need to fold the front and rear sides of the vacuum insulation plate, and heat sealing the barrier membrane is achieved by using components such as brackets, top plates, sealing plates and heating plates to avoid folding the left and right sides.
The operation process is simplified, and only the front and rear leaves of the folded vacuum insulation plate are required, which improves the bagging efficiency and product fit.
Smart Images
Figure CN120482468A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of core material bagging of vacuum insulation panels, and in particular to a core material bagging device and a core material bagging method. Background Art
[0002] Vacuum insulation panel is a new type of thermal insulation and energy-saving material made using the principle of vacuum insulation. It is composed of packaging material with high barrier properties on the surface, core material with strong thermal insulation performance and adsorbent. The core material and adsorbent are encapsulated with packaging material under vacuum state. It achieves the purpose of heat preservation and energy saving by utilizing the principle of vacuum insulation.
[0003] Traditionally, core material bagging involves placing the core material directly into a barrier bag. Prior to bagging, the packaging material must be formed into a barrier bag. For example, three edges of the upper and lower barrier films are heat-sealed together, leaving a bagging opening on the other side. This opening allows the core material and adsorbent to be placed into the bag through the bagging opening. To facilitate the placement of the core material into the barrier bag, the bagging opening must be larger than the core material, requiring the four edges of the vacuum insulation panel to be folded after the bag opening is evacuated and heat-sealed. Summary of the Invention
[0004] Based on the above-mentioned problems existing in the prior art, one purpose of an embodiment of the present application is to provide a core material wrapping device, which wraps a barrier film around the core material and then heat-seals the barrier film together, so that after the vacuum heat-sealed bag opening, only the front and rear side leaves of the vacuum insulation panel need to be folded, while the left and right sides of the vacuum insulation panel do not need to be folded.
[0005] The second purpose of the embodiment of the present application is to provide a core material covering method.
[0006] The technical solution adopted by this application to solve its technical problems is: a core material equipment, including a bracket, a first top plate, a second top plate, a first closing plate and a second closing plate, the first top plate is arranged on the bracket, the second top plate is arranged on the bracket, the second top plate is arranged opposite to the first top plate, and the second top plate and the first top plate can approach each other or move away from each other; the first closing plate is arranged on the bracket, the second closing plate is arranged on the bracket, a heating plate is arranged on the second closing plate and / or the first closing plate, the second closing plate is arranged opposite to the first closing plate, and the second closing plate and the first closing plate can approach each other or move away from each other.
[0007] Furthermore, the moving direction of the first top plate or the second top plate is a first direction, the moving direction of the first closing plate or the second closing plate is a second direction, and the second direction is perpendicular to the first direction.
[0008] Furthermore, the bottoms of the first sealing plate and the second sealing plate are flush with the bottom of the first top plate.
[0009] Furthermore, the first top plate is a fixed top plate, which is fixed to the upper part of the bracket; the second top plate is a movable top plate, which is liftable and arranged at the lower part of the bracket.
[0010] Furthermore, a lifting cylinder is provided on the bracket, and the lifting cylinder is connected to the movable top plate and drives the movable top plate to approach or move away from the fixed top plate.
[0011] Furthermore, a first cushion block and a second cushion block are provided on the movable top plate. The height of the first cushion block is consistent with the height of the second cushion block, and a cavity is formed between the first cushion block and the second cushion block.
[0012] Furthermore, the first sealing plate is a fixed sealing plate, which is fixed to the upper part of the bracket and located on one side of the fixed top plate. The fixed sealing plate is located directly above the dynamic top plate; the second sealing plate is a dynamic sealing plate, which can be laterally moved and arranged on the bracket.
[0013] Furthermore, a transverse cylinder is provided on the bracket, and the transverse cylinder is connected to the dynamic sealing plate and drives the dynamic sealing plate to approach or move away from the fixed sealing plate.
[0014] Furthermore, the dynamic sealing plate is connected to the heating plate through an adjusting mechanism.
[0015] Furthermore, a guide roller is provided on the bracket, and the guide roller is rotatably provided on the bracket.
[0016] Furthermore, the guide roller includes a first roller and a second roller, the first roller is rotatably disposed on the bracket, and the second roller is rotatably disposed on the bracket.
[0017] Furthermore, a tensioning mechanism is provided between the first roller and the second roller, and the tensioning mechanism includes a connecting rod, a left tensioning wheel and a right tensioning wheel. The connecting rod is rotatably provided on the bracket, and the left end of the connecting rod has a tendency to move upward, and the right end of the connecting rod has a tendency to move downward. The left tensioning wheel is rotatably provided at the left end of the connecting rod, and the right tensioning wheel is rotatably provided at the right end of the connecting rod.
[0018] Furthermore, the distance between the left tensioning wheel and the rotation position of the connecting rod is smaller than the distance between the right tensioning wheel and the rotation position of the connecting rod.
[0019] Furthermore, the connecting rod includes a first connecting rod and a second connecting rod, the first connecting rod is arranged on one side of the bracket, and the first connecting rod is connected to one end of the left tensioning wheel and the right tensioning wheel, and the second connecting rod is arranged on the other side of the bracket, and the second connecting rod is connected to the other end of the left tensioning wheel and the right tensioning wheel.
[0020] Furthermore, it also includes a pressing mechanism, which includes a pressing cylinder and a pressing block. The pressing cylinder is arranged on a bracket, and the pressing block is connected to the pressing cylinder and is driven to rise and fall by the pressing cylinder. The pressing block is located directly above the second roller and can rest against the second roller.
[0021] Furthermore, it also includes a transverse cutting mechanism, which includes a base, a guide rod and a transverse cutting knife. The base is set on the bracket, the guide rod is fixed on the base, and the transverse cutting knife is movably set on the guide rod. The transverse cutting knife is located above the fixed sealing plate.
[0022] Furthermore, the base body includes a first base body and a second base body, the first base body is fixed on one side of the bracket, and the second base body is fixed on the other side of the bracket; the guide rod includes a first guide rod and a second guide rod, one end of the first guide rod is fixed on the first base body, and the other end of the first guide rod is fixed on the second base body, one end of the second guide rod is fixed on the first base body, and the other end of the second guide rod is fixed on the second base body, and the second guide rod is parallel to the first guide rod.
[0023] Furthermore, a tightening mechanism for preventing the rotating shaft from rotating is provided at one end of the bracket.
[0024] Furthermore, a metering device for measuring the pulling length of the barrier film is also provided on the bracket.
[0025] Furthermore, it also includes a baffle, which is arranged on the second top plate. The baffle and the second sealing plate are located on the same side of the first sealing plate, and the distance between the baffle and the first sealing plate is greater than the distance between the second sealing plate and the first sealing plate.
[0026] Furthermore, negative pressure devices are provided on the first top plate and the second top plate.
[0027] The technical solution adopted by the present application to solve the technical problem is: a core material method, comprising the following steps:
[0028] S1, winding the barrier film along the roller on the bracket;
[0029] S2, pulling the barrier film, the barrier film is turned and moved, so that a receiving cavity is formed between the end portion of the barrier film and the middle portion of the barrier film, and the end portion of the barrier film and the middle portion of the barrier film are located between the first sealing plate and the second sealing plate; the inner heat-sealing layer at the end portion of the barrier film is opposite to the inner heat-sealing layer at the middle portion of the barrier film;
[0030] S3, placing the core material in the accommodation cavity formed between the end portion and the middle portion of the barrier film;
[0031] S4, the first top plate and the second top plate are brought closer to each other, and when the barrier film is in a taut state, the first top plate and the second top plate are pressed against the barrier film to clamp one side of the core material;
[0032] S5, with the barrier film in a taut state, the first sealing plate and the second sealing plate move closer to each other, causing the middle portion of the barrier film to move along the other side of the core material surface until the inner heat-sealing layer in the middle of the barrier film adheres to the inner heat-sealing layer at the end of the barrier film. At this point, the barrier film tightly wraps the core material.
[0033] S6, heating the heating plate on the first sealing plate and / or the second sealing plate to heat-seal the inner heat-sealing layer in the middle of the barrier film and the inner heat-sealing layer at the end of the barrier film together.
[0034] Furthermore, the method further includes step S7, in which the excess barrier film on the outer side of the heat seal is cut off to take out the product wrapped with the core material.
[0035] Furthermore, in step S5, the tensioning mechanism arranged on the bracket puts the barrier film in a tensioned state; in step S6, after the inner heat-sealing layer in the middle of the barrier film and the inner heat-sealing layer at the end of the barrier film are heat-sealed together, the lower pressing block is pressed down to press the barrier film onto the second roller.
[0036] The technical solution adopted by the present application to solve the technical problem is: a core material method, comprising the following steps:
[0037] Step 1: Wind the barrier film along the roller on the bracket;
[0038] Step 2: Pull the barrier film and place the core material on the inner surface of the barrier film. The barrier film is rotated and moved to wrap one side of the core material. The end of the barrier film and the middle of the barrier film are located between the first sealing plate and the second sealing plate. The inner heat-sealing layer at the end of the barrier film is opposite to the inner heat-sealing layer in the middle of the barrier film.
[0039] Step 3: The first top plate and the second top plate are brought closer to each other so that the upper surface of the barrier film is close to the lower surface of the first top plate, and the upper surface of the barrier film can move along the lower surface of the first top plate;
[0040] Step 4: With the barrier film stretched, the first and second sealing plates are brought closer together, causing the middle portion of the barrier film to move along the upper surface of the core material until the inner heat-sealing layer in the middle of the barrier film adheres to the inner heat-sealing layer at the end of the barrier film. At this point, the barrier film tightly wraps the core material.
[0041] Step 5: heating the heating plate on the first sealing plate and / or the second sealing plate to heat-seal the inner heat-seal layer in the middle of the barrier film with the inner heat-seal layer at the end of the barrier film;
[0042] Step 6: Cut off the excess barrier film on the outside of the heat seal and take out the product wrapped with the core material.
[0043] The beneficial effects of the present application are as follows: when in use, the rotating shaft equipped with the barrier film is placed on the bracket, and then the end of the barrier film is pulled to form a receiving cavity between the end of the barrier film and the middle of the barrier film. After the core material is placed in the receiving cavity, the second top plate and the first top plate are brought close to each other to compress the core material, and the second sealing plate and the first sealing plate are brought close to each other so that the barrier film moves along the surface of the core material and tightly wraps the core material. Finally, the heating plate is used for heat sealing to achieve heat sealing of the inner heat sealing layer in the middle of the barrier film and the inner heat sealing layer at the end of the barrier film. In this way, the two sides of the manufactured product are tightly attached to the side of the core material, so that after the vacuum heat sealing bag mouth is drawn, only the front and rear leaves of the vacuum insulation panel need to be folded, while the left and right sides of the vacuum insulation panel do not need to be folded. BRIEF DESCRIPTION OF THE DRAWINGS
[0044] Figure 1 This is a schematic diagram of the structure of the core material equipment in this application;
[0045] Figure 2 This is a structural diagram of the core material equipment in this application from another angle;
[0046] Figure 3 It is a front view of the core material equipment in this application;
[0047] Figure 4 This is a schematic structural diagram of a barrier film winding device for core material in this application;
[0048] Figure 5 This is a schematic structural diagram of another barrier film winding arrangement of the core material equipment in this application;
[0049] Figure 6 This is a schematic structural diagram of another barrier film winding structure of the core material equipment in this application.
[0050] Description of Reference Numerals
[0051] Bracket 1, lifting cylinder 11, transverse cylinder 12, guide roller 13, first roller 131, second roller 132, tensioning mechanism 14, connecting rod 141, first connecting rod 1411, second connecting rod 1412, left tensioning wheel 142, right tensioning wheel 143, baffle 15, first top plate 2, second top plate 3, first cushion block 31, second cushion block 32, adjusting mechanism 33, first closing plate 4, second closing plate 5, heating plate 6, pressing mechanism 7, pressing cylinder 71, pressing block 72, transverse cutting mechanism 8, base body 81, first base body 811, second base body 812, guide rod 82, first guide rod 821, second guide rod 822, cross-cutting knife 83, core material 9, barrier film 10. DETAILED DESCRIPTION
[0052] 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.
[0053] like Figures 1 to 6 As shown, a core material equipment of the present invention includes a bracket 1, a first top plate 2, a second top plate 3, a first closing plate 4 and a second closing plate 5. The first top plate 2 is arranged on the bracket 1, the second top plate 3 is arranged on the bracket 1, the second top plate 3 is arranged opposite to the first top plate 2, and the second top plate 3 and the first top plate 2 can approach each other or move away from each other; the first closing plate 4 is arranged on the bracket 1, the second closing plate 5 is arranged on the bracket 1, a heating plate 6 is arranged on the second closing plate 5 and / or the first closing plate 4, the second closing plate 5 is arranged opposite to the first closing plate 4, and the second closing plate 5 and the first closing plate 4 can approach each other or move away from each other.
[0054] Thus, the present invention relates to a core material wrapping device. When in use, the rotating shaft equipped with the barrier film 10 is placed on the bracket 1, and then the end of the barrier film 10 is pulled to form a receiving cavity between the end of the barrier film 10 and the middle of the barrier film 10. After the core material 9 is placed in the receiving cavity, the second top plate 3 and the first top plate 2 are brought close to each other to press the core material 9. The second sealing plate 5 and the first sealing plate 4 are brought close to each other so that the barrier film 10 moves along the surface of the core material 9 and tightly wraps the core material 9. Finally, the heating plate 6 is heated to seal the inner heat sealing layer in the middle of the barrier film 10 and the inner heat sealing layer at the end of the barrier film 10. In this way, the two sides of the manufactured product are tightly attached to the side of the core material 9, so that after the vacuum heat sealing bag mouth is evacuated, only the front and rear side leaves of the vacuum insulation panel need to be folded, while the left and right sides of the vacuum insulation panel do not need to be folded.
[0055] Optionally, the movement direction of the first top plate 2 or the second top plate 3 is a first direction, and the movement direction of the first sealing plate 4 or the second sealing plate 5 is a second direction, and the second direction is perpendicular to the first direction. Specifically, the movement direction of the first top plate 2 or the second top plate 3 can be a vertical direction, while the movement direction of the first sealing plate 4 or the second sealing plate 5 is a horizontal direction, and the bottoms of the first sealing plate 4 and the second sealing plate 5 are flush with the bottom of the first top plate 2. In this way, after the core material 9 is clamped by the first top plate 2 and the second top plate 3, the movement of the first sealing plate 4 or the second sealing plate 5 drives the barrier film 10 to move along the surface of the core material 9, so that the barrier film 10 tightly wraps the core material 9.
[0056] In this embodiment, the first top plate 2 is a fixed top plate, which is fixed to the upper part of the bracket 1; the second top plate 3 is a movable top plate, which can be raised and lowered and arranged at the lower part of the bracket 1. A lifting cylinder 11 is provided on the bracket 1, which is connected to the movable top plate and drives the movable top plate toward or away from the fixed top plate. The barrier film 10 can move along the surface of the movable top plate, and then the barrier film 10 turns. After the core material 9 is placed in the barrier film 10, the lifting cylinder 11 drives the movable top plate to rise, so that the movable top plate presses against the barrier film 10 at the lower part of the core material 9, while the fixed top plate presses against the barrier film 10 on one side of the upper part of the core material 9. The second closing plate 5 moves to drive the barrier film 10 to cover the other side of the upper part of the core material 9.
[0057] In this embodiment, a first pad 31 and a second pad 32 are provided on the movable top plate. The height of the first pad 31 is consistent with that of the second pad 32, forming a cavity between the first and second pads 31, 32. When wrapping the core material 9, some core materials 9 are relatively fragile, and the applied pressure can damage the core material 9 structure. To address this issue, by providing the first and second pads 31, 32 on the movable top plate, the core material 9 is positioned in the cavity formed between the first and second pads 31, 32. After the movable top plate rises, the first and second pads 31, 32 prevent the core material 9 from being excessively compressed, thereby protecting the core material 9.
[0058] Or in other core materials 9, applying pressure to the core material 9 will destroy the structure of the core material 9. In this case, the height of the first cushion block 31 and the second cushion block 32 needs to be greater than the thickness of the core material 9 to prevent the core material from being crushed by the first top plate 2.
[0059] In some examples, the first sealing plate 4 is a fixed sealing plate, which is fixed to the upper portion of the bracket 1 and located on one side of the fixed top plate. The fixed sealing plate is located directly above the dynamic top plate. The second sealing plate 5 is a dynamic sealing plate, which is laterally movable and arranged on the bracket 1. The bracket 1 is provided with a transverse cylinder 12, which is connected to the dynamic sealing plate and drives the dynamic sealing plate toward or away from the fixed sealing plate.
[0060] After the first top plate 2 and the second top plate 3 clamp the core material 9, the end of the barrier film 10 and the middle of the barrier film 10 are located between the first sealing plate 4 and the second sealing plate 5, and the inner heat-sealing layer at the end of the barrier film 10 is opposite to the inner heat-sealing layer in the middle of the barrier film 10. At this time, the dynamic sealing plate moves along the outer surface of the middle of the barrier film 10, driving the barrier film 10 to fit on the core material 9, thereby tightly wrapping the core material 9.
[0061] Preferably, the dynamic sealing plate is connected to the heating plate 6 via an adjustment mechanism 33 , which may be an adjustment bolt. By providing the adjustment mechanism 33 , the heating plate 6 can be fine-tuned so that the heating plate 6 can fit the barrier film 10 more closely, resulting in a better heat sealing effect.
[0062] In this embodiment, a guide roller 13 is further provided on the bracket 1, and the guide roller 13 is rotatably provided on the bracket 1. Specifically, the guide roller 13 includes a first roller 131 and a second roller 132, the first roller 131 is rotatably provided on the bracket 1, and the second roller 132 is rotatably provided on the bracket 1, and the second roller 132 is located directly above the dynamic sealing plate.
[0063] After the rotating shaft with the barrier film 10 is placed on the bracket 1, the end of the barrier film 10 is pulled, so that the barrier film 10 rotates along the first roller 131 and the second roller 132, and the barrier film 10 is wound around the bracket 1. The first roller 131 and the second roller 132 are provided to achieve the turning direction of the barrier film 10 and make the barrier film 10 smoother when being pulled.
[0064] In a preferred embodiment of the present invention, a tensioning mechanism 14 is further provided between the first roller 131 and the second roller 132. The tensioning mechanism 14 includes a connecting rod 141, a left tensioning wheel 142 and a right tensioning wheel 143. The connecting rod 141 is rotatably provided on the bracket 1, and the left end of the connecting rod 141 has a tendency to move upward, and the right end of the connecting rod 141 has a tendency to move downward. The left tensioning wheel 142 is rotatably provided at the left end of the connecting rod 141, and the right tensioning wheel 143 is rotatably provided at the right end of the connecting rod 141.
[0065] By setting up a tensioning mechanism 14, when the dynamic sealing plate moves, since the left end of the connecting rod 141 has a tendency to move upward and the right end of the connecting rod 141 has a tendency to move downward, the left tensioning wheel 142 pulls the barrier film 10 upward, and the right tensioning wheel 143 pulls the barrier film 10 downward, thereby driving the barrier film 10 into a tensioned state, so that during the movement of the dynamic sealing plate, the barrier film 10 can better fit on the surface of the core material 9, thereby tightly wrapping the core material 9.
[0066] Among them, the distance between the rotation position of the left tension wheel 142 and the connecting rod 141 is smaller than the distance between the rotation position of the right tension wheel 143 and the connecting rod 141. In this way, the left tension wheel 142 and the right tension wheel 143 are not installed symmetrically, and the connecting rod 141 where the right tension wheel 143 is located has a longer force arm, which will hold the barrier film 10 tighter.
[0067] In this embodiment, the connecting rod 141 includes a first connecting rod 1411 and a second connecting rod 1412. The first connecting rod 1411 is provided on one side of the bracket 1 and is connected to one end of the left tensioning wheel 142 and the right tensioning wheel 143. The second connecting rod 1412 is provided on the other side of the bracket 1 and is connected to the other ends of the left tensioning wheel 142 and the right tensioning wheel 143. The provision of the first connecting rod 1411 and the second connecting rod 1412 makes the left tensioning wheel 142 and the right tensioning wheel 143 rotate more smoothly.
[0068] In a preferred embodiment of the present invention, a pressing mechanism 7 is further included. The pressing mechanism 7 comprises a pressing cylinder 71 and a pressing block 72. The pressing cylinder 71 is mounted on the bracket 1. The pressing block 72 is connected to the pressing cylinder 71 and is driven up and down by the pressing cylinder 71. The pressing block 72 is located directly above the second roller 132 and can abut against the second roller 132. After the inner heat-seal layer in the middle of the barrier film 10 is heat-sealed with the inner heat-seal layer at the end of the barrier film 10, the pressing block 72 is pressed downward by the pressing cylinder 71, pressing the barrier film 10 against the second roller 132. Finally, the excess barrier film 10 outside the heat seal is cut off to prevent the barrier film 10 from moving back under the action of the tensioning mechanism 14.
[0069] In this embodiment, a transverse cutting mechanism 8 is also included. The transverse cutting mechanism 8 includes a base body 81, a guide rod 82 and a transverse cutting knife 83. The base body 81 is set on the bracket 1, the guide rod 82 is fixed on the base body 81, and the transverse cutting knife 83 is movably set on the guide rod 82. The transverse cutting knife 83 is located above the fixed sealing plate.
[0070] After the inner heat-sealing layer in the middle of the barrier film 10 is heat-sealed with the inner heat-sealing layer at the end of the barrier film 10, the cross-cutting knife 83 moves along the guide rod 82 to cut off the excess barrier film 10 outside the heat seal, making it easier to remove the product.
[0071] Specifically, the base 81 includes a first base 811 and a second base 812, wherein the first base 811 is fixed to one side of the bracket 1 and the second base 812 is fixed to the other side of the bracket 1; the guide rod 82 includes a first guide rod 821 and a second guide rod 822, wherein one end of the first guide rod 821 is fixed to the first base 811 and the other end of the first guide rod 821 is fixed to the second base 812, and one end of the second guide rod 822 is fixed to the first base 811 and the other end of the second guide rod 822 is fixed to the second base 812, and the second guide rod 822 is parallel to the first guide rod 821. By providing the first guide rod 821 and the second guide rod 822, the cross-cutting knife 83 can move more smoothly.
[0072] Furthermore, a tensioning mechanism is provided at one end of the bracket 1 to prevent the rotating shaft from rotating. During use, the barrier film roll is mounted on the bracket 1 so that its rotating shaft can be rotatably mounted on the bracket 1. Once the barrier film end is wound onto the drum, the tensioning mechanism 14 tensions the film, and the tensioning block of the tensioning mechanism presses against the rotating shaft, preventing the shaft from rotating.
[0073] Furthermore, the bracket 1 is also provided with a metering device for measuring the pulled length of the barrier film. By providing the metering device, the pulled length of the barrier film can be calculated to prevent the barrier film from being wasted.
[0074] This embodiment further includes a baffle 15, which is disposed on the second top plate 3. The baffle 15 and the second sealing plate 5 are located on the same side of the first sealing plate 4, and the distance between the baffle 15 and the first sealing plate 4 is greater than the distance between the second sealing plate 5 and the first sealing plate 4. The baffle 15 can be parallel to the second sealing plate 5. In this way, after the core material 9 is placed, the barrier film 10 at the end of the core material 9 can lean against the side of the baffle 15, thereby aligning and positioning the core material 9 so that the barrier film 10 can tightly wrap the core material 9. At the same time, because the distance between the baffle 15 and the first sealing plate 4 is greater than the distance between the second sealing plate 5 and the first sealing plate 4, the baffle 15 is located outside the second sealing plate 5, so that the second sealing plate 5 is located above the core material 9. This can effectively prevent the second sealing plate 5 from scraping the corners of the core material 9 and damaging the core material 9 when it moves.
[0075] The core material 9 may be a composite core material composed of a surface core material and a bottom core material, or a composite core material composed of a surface core material, an intermediate core material and a bottom core material.
[0076] In one embodiment of the present invention, a negative pressure device is provided on the first top plate 2 and the second top plate 3. The negative pressure device can absorb the surface of the barrier film 10 during use, thereby facilitating the placement of the core material 9 in the accommodating cavity. Once the core material 9 is placed in the accommodating cavity, the negative pressure device is closed.
[0077] For some core materials 9 with relatively large compression ratio, the present invention proposes a core material covering method, comprising the following steps:
[0078] S1, the barrier film 10 is wound around the bracket 1 along the roller; S2, the barrier film 10 is turned and moved so that a receiving cavity is formed between the end of the barrier film 10 and the middle of the barrier film 10, and the end of the barrier film 10 and the middle of the barrier film 10 are located between the first sealing plate 4 and the second sealing plate 5; the inner heat-sealing layer of the end of the barrier film 10 is opposite to the inner heat-sealing layer of the middle of the barrier film 10; S3, the core material 9 is placed in the receiving cavity formed between the end of the barrier film 10 and the middle of the barrier film 10; S4, the first top plate 2 and the second top plate 3 are close to each other, and when the barrier film 10 is in a taut state, the first The top plate 2 and the second top plate 3 are placed on the barrier film 10 to clamp one side of the core material 9; S5, when the barrier film 10 is in a taut state, the first sealing plate 4 and the second sealing plate 5 approach each other, so that the middle part of the barrier film 10 moves along the other side of the surface of the core material 9 until the inner heat-sealing layer in the middle of the barrier film 10 is attached to the inner heat-sealing layer at the end of the barrier film 10. At this time, the barrier film 10 wraps the core material 9 tightly; S6, the heating plate 6 on the first sealing plate 4 and / or the second sealing plate 5 is heated to heat-seal the inner heat-sealing layer in the middle of the barrier film 10 and the inner heat-sealing layer at the end of the barrier film 10 together.
[0079] Place the rotating shaft with the barrier film 10 on the bracket 1, then pull the end of the barrier film 10 to form a accommodating cavity between the end of the barrier film 10 and the middle of the barrier film 10. After the core material 9 is placed in the accommodating cavity, the second top plate 3 and the first top plate 2 are brought close to each other to compress the core material 9. The second sealing plate 5 and the first sealing plate 4 are brought close to each other so that the barrier film 10 moves along the surface of the core material 9 and tightly wraps the core material 9. Finally, the heating plate 6 is heat-sealed to achieve heat sealing of the inner heat-sealing layer in the middle of the barrier film 10 and the inner heat-sealing layer at the end of the barrier film 10. In this way, the barrier films 10 on both sides of the manufactured product are tightly attached to the sides of the core material 9, so that after the vacuum heat-sealing bag is evacuated, only the front and rear leaves of the vacuum insulation panel need to be folded, while the left and right sides of the vacuum insulation panel do not need to be folded.
[0080] This embodiment further includes step S7, which involves moving the cross-cutting blade 83 to cut off excess barrier film 10 outside the heat seal and remove the product wrapped with the core material 9. By providing the cross-cutting blade 83, the cross-cutting blade 83 can be moved horizontally to quickly cut off excess barrier film 10 outside the heat seal, making the operation simple and convenient.
[0081] In this embodiment, in step S5, the tensioning mechanism 14 provided on the bracket 1 puts the barrier film 10 in a tensioned state; in step S6, after the inner heat-sealing layer in the middle of the barrier film 10 and the inner heat-sealing layer at the end of the barrier film 10 are heat-sealed together, the lower pressing block 72 is pressed downward to press the barrier film 10 onto the second roller 132.
[0082] By providing a tensioning mechanism 14, the barrier film 10 is kept in a tensioned state when the dynamic sealing plate moves, allowing the barrier film 10 to better adhere to the surface of the core material 9 during the movement of the dynamic sealing plate, thereby tightly wrapping the core material 9. After the inner heat-sealing layer in the middle of the barrier film 10 is heat-sealed with the inner heat-sealing layer at the end of the barrier film 10, the lower pressing block 72 is pressed downward by the lower pressing cylinder 71, pressing the barrier film 10 against the second roller 132. Finally, the excess barrier film 10 outside the heat seal is cut off to prevent the barrier film 10 from moving back under the action of the tensioning mechanism 14.
[0083] For some core materials 9 with low compression and high brittleness, the present invention proposes another core material covering method, including the following steps:
[0084] Step 1: Wind the barrier film 10 along the roller on the bracket 1; Step 2: Pull the barrier film 10, place the core material 8 on the inner surface of the barrier film 10, and turn the barrier film 10 to wrap one side of the core material 9. The end of the barrier film 10 and the middle of the barrier film 10 are located between the first sealing plate 4 and the second sealing plate 5; the inner heat-sealing layer at the end of the barrier film 10 is opposite to the inner heat-sealing layer in the middle of the barrier film 10; Step 3: The first top plate 2 and the second top plate 3 are close to each other, so that the upper surface of the barrier film 10 is close to the lower surface of the first top plate 2, and the upper surface of the barrier film 10 is close to the lower surface of the first top plate 2. The surface can move along the lower surface of the first top plate 2; Step 4: With the barrier film 10 in a taut state, the first and second sealing plates 4 and 5 are brought closer together, causing the middle portion of the barrier film 10 to move along the upper surface of the core material 9 until the inner heat-seal layer in the middle of the barrier film 10 and the inner heat-seal layer at the end of the barrier film 10 are attached together. At this point, the barrier film 10 tightly wraps the core material 9; Step 5: Heat the heating plate 6 on the first and / or second sealing plates 4 and 5 to heat-seal the inner heat-seal layer in the middle of the barrier film 10 with the inner heat-seal layer at the end of the barrier film 10. Step 6: Cut off the excess barrier film 10 outside the heat seal and remove the product wrapped with the core material 9.
[0085] When wrapping this core material, the height of the first pad 31 and the second pad 32 is higher than the height of the core material 9. After the first top plate 2 and the second top plate 3 are close to each other, the first pad 31 and the second pad 32 are pressed against the first top plate 2, and there is a gap between the upper surface of the core material 9 and the first top plate 2. For example, the gap between the upper surface of the core material 9 and the first top plate 2 is 1mm-5mm. In this way, when the barrier film 10 is in a tightened state, when the second sealing plate 5 moves, the end of the barrier film 10 can be pulled back a little along the gap, thereby preventing the barrier film 10 from being too tight and broken.
[0086] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's description and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A core material equipment, characterized by: It includes a bracket, a first top plate, a second top plate, a first sealing plate and a second sealing plate, the first top plate is arranged on the bracket, the second top plate is arranged on the bracket, the second top plate is arranged opposite to the first top plate, and the second top plate and the first top plate can approach each other or move away from each other; the first sealing plate is arranged on the bracket, the second sealing plate is arranged on the bracket, a heating plate is arranged on the second sealing plate and / or the first sealing plate, the second sealing plate is arranged opposite to the first sealing plate, and the second sealing plate and the first sealing plate can approach each other or move away from each other.
2. The core material equipment according to claim 1, characterized in that: The moving direction of the first top plate or the second top plate is a first direction, the moving direction of the first closing plate or the second closing plate is a second direction, and the second direction is perpendicular to the first direction.
3. The core material equipment according to claim 2, characterized in that: The first top plate is a fixed top plate, which is fixed to the upper part of the bracket; the second top plate is a movable top plate, which is liftable and arranged at the lower part of the bracket.
4. The core material cladding equipment according to claim 3, characterized in that: A first cushion block and a second cushion block are provided on the movable top plate. The height of the first cushion block is consistent with that of the second cushion block, and a cavity is formed between the first cushion block and the second cushion block.
5. The core material equipment according to claim 1, characterized in that: The first sealing plate is a fixed sealing plate, which is fixed to the upper part of the bracket and located on one side of the fixed top plate. The fixed sealing plate is located directly above the dynamic top plate. The second sealing plate is a dynamic sealing plate, which can be laterally moved and arranged on the bracket.
6. The core material cladding equipment according to claim 1, characterized in that: A guide roller is also provided on the bracket, and the guide roller is rotatably provided on the bracket; the guide roller includes a first roller and a second roller, the first roller is rotatably provided on the bracket, and the second roller is rotatably provided on the bracket.
7. The core material cladding equipment according to claim 6, characterized in that: A tensioning mechanism is also provided between the first roller and the second roller, and the tensioning mechanism includes a connecting rod, a left tensioning wheel and a right tensioning wheel. The connecting rod is rotatably provided on the bracket, and the left end of the connecting rod has a tendency to move upward, and the right end of the connecting rod has a tendency to move downward. The left tensioning wheel is rotatably provided at the left end of the connecting rod, and the right tensioning wheel is rotatably provided at the right end of the connecting rod.
8. The core material cladding equipment according to claim 1, characterized in that: It also includes a pressing mechanism, which includes a pressing cylinder and a pressing block. The pressing cylinder is arranged on a bracket. The pressing block is connected to the pressing cylinder and is driven to rise and fall by the pressing cylinder. The pressing block is located directly above the second roller and can rest against the second roller.
9. A core material covering method, characterized in that: The following steps are involved: S1, winding the barrier film along the roller on the bracket; S2, pulling the barrier film, the barrier film is turned and moved, so that a receiving cavity is formed between the end portion of the barrier film and the middle portion of the barrier film, and the end portion of the barrier film and the middle portion of the barrier film are located between the first sealing plate and the second sealing plate; the inner heat-sealing layer at the end portion of the barrier film is opposite to the inner heat-sealing layer at the middle portion of the barrier film; S3, placing the core material in the accommodation cavity formed between the end portion and the middle portion of the barrier film; S4, the first top plate and the second top plate are brought closer to each other, and when the barrier film is in a taut state, the first top plate and the second top plate are pressed against the barrier film to clamp one side of the core material; S5, with the barrier film in a taut state, the first sealing plate and the second sealing plate move closer to each other, causing the middle portion of the barrier film to move along the other side of the core material surface until the inner heat-sealing layer in the middle of the barrier film adheres to the inner heat-sealing layer at the end of the barrier film. At this point, the barrier film tightly wraps the core material. S6, heating the heating plate on the first sealing plate and / or the second sealing plate to heat-seal the inner heat-seal layer in the middle of the barrier film with the inner heat-seal layer at the end of the barrier film; S7, cut off the excess barrier film on the outside of the heat seal and take out the product wrapped with the core material.
10. A core material covering method, characterized in that: The following steps are involved: Step 1: Wind the barrier film along the roller on the bracket; Step 2: Pull the barrier film and place the core material on the inner surface of the barrier film. The barrier film is rotated and moved to wrap one side of the core material. The end of the barrier film and the middle of the barrier film are located between the first sealing plate and the second sealing plate. The inner heat-sealing layer at the end of the barrier film is opposite to the inner heat-sealing layer in the middle of the barrier film. Step 3: The first top plate and the second top plate are brought closer to each other so that the upper surface of the barrier film is close to the lower surface of the first top plate, and the upper surface of the barrier film can move along the lower surface of the first top plate; Step 4: With the barrier film stretched, the first and second sealing plates are brought closer together, causing the middle portion of the barrier film to move along the upper surface of the core material until the inner heat-sealing layer in the middle of the barrier film adheres to the inner heat-sealing layer at the end of the barrier film. At this point, the barrier film tightly wraps the core material. Step 5: heating the heating plate on the first sealing plate and / or the second sealing plate to heat-seal the inner heat-seal layer in the middle of the barrier film with the inner heat-seal layer at the end of the barrier film; Step 6: Cut off the excess barrier film on the outside of the heat seal and take out the product wrapped with the core material.