Heat-conducting elastic layer structure of hot pressboard

Abstract

The utility model discloses a heat-conducting elastic layer structure of a hot pressboard, a heat-conducting elastic layer is a braided fabric formed by weaving warp-wise heat-conducting rubber bands and weft-wise heat-conducting fibers, the heat-conducting rubber bands are arranged in a tiled manner, and the heat-conducting fibers are sequentially wound on the heat-conducting rubber bands up and down. According to the heat conduction elastic layer structure of the hot pressboard, through the weaving structure of the heat conduction rubber bands and the heat conduction fibers and the structures and materials of the heat conduction rubber bands and the heat conduction fibers, the heat conduction elastic layer not only has good heat conduction performance, but also has a good elastic effect.

Description

Technical Field

[0001] The utility model relates to the technical field of single-sided hot pressing of a wood board veneer layer, in particular to a heat-conducting elastic layer structure of a hot pressing board. Background Art

[0002] Veneer refers to a board made from wood or bamboo, with varying thicknesses, and a decorative layer of the same or a different material applied to one end. It can be used in home renovations, commercial spaces, healthcare, and other fields, offering aesthetics, environmental friendliness, and cost-effectiveness.

[0003] In production, most companies use a veneer hot press to hot-press the veneer of the wooden board. The structure of the veneer hot press is generally composed of a fixed base plate and a hot press plate that moves up and down. The wooden board is placed on the base plate and then the veneer to be hot-pressed and fixed is placed on the top of the wooden board. After the hot press plate presses down for a period of time, it moves upward and separates from the wooden board, thereby realizing the hot pressing of the veneer layer of the veneer board and removing the veneer board from the base plate.

[0004] Obviously, the hot pressing efficiency of the above-mentioned veneer hot press for veneer will be relatively low. Then, a veneer hot press similar to the patent with application number 202222649604.1 appeared on the market. It is composed of multiple layers of hot pressing plates distributed up and down. The bottom of the hot pressing plate is the bottom plate. The hot pressing plate can move up and down. The wooden boards are placed on the top surface of the adjacent hot pressing plate or the top surface of the bottom plate under each layer of hot pressing plate, and then the veneer to be hot-pressed and fixed is placed on the top surface of the wooden board. Then, each layer of hot pressing plate is controlled to move downward to hot-press the veneer of each layer of wooden board respectively, thereby realizing the simultaneous hot pressing of the veneer layers of multiple veneer panels at a single time, effectively improving production efficiency.

[0005] Although the surface of the hot-pressed veneer layer of current veneer panels will have various wood grains, since the veneer is generally a rotary-cut wood veneer or directly a veneer decorative paper, after hot pressing, the unevenness of the wood grain of the rotary-cut wood veneer is almost imperceptible. The veneer decorative paper is just a completely flat glossy surface, and the wood grain pattern printed on the veneer decorative paper has no real wood grain effect.

[0006] Therefore, in order to imitate the concave and convex texture of the surface of real wooden boards, some veneer panels will be pressed again after hot pressing, so that the veneer layer can be pressed with corresponding indentations according to the veneer layer texture, making the veneer layer of the veneer panel feel closer to real wood.

[0007] Obviously, this requires adding a pressing process, which increases production costs and increases production cycle.

[0008] In theory, it is possible to use the embossed bottom surface of the hot press platen in the veneer hot press machine described in the patent application number 202222649604.1 as a directly heated mold platen. However, if a company produces a large number of products with a wide variety of textures, it will require the company to configure multiple hot press plates with different embossed bottom surfaces to accommodate production. However, the cost of configuring a hot pressing plate with a large number of different embossings is relatively very high, and the hot pressing plate is generally oil-heated. When replacing, it is necessary not only to disassemble and assemble the plate itself, but also to disassemble and connect the oil circuit of the thermal oil. The temperature of the thermal oil is very high (about 200 degrees Celsius). When disassembling and assembling the thermal oil circuit of the hot pressing plate, in order to maximize the replacement efficiency, it is only possible to directly disassemble and replace without lowering the thermal oil temperature, but this will pose a safety hazard; if in order to ensure safety, it is necessary to wait until the oil temperature of the thermal oil is lowered to a safe temperature (45 degrees Celsius) before replacing it, but this will obviously seriously affect the replacement efficiency, and after replacement, it is necessary to wait for the oil temperature to rise to the required temperature before continuing production, which will still extend the replacement time and generate additional energy consumption.

[0009] Therefore, only a structure in which the bottom of the hot pressing plate is detachably fixedly connected to the die pressing plate can be adopted.

[0010] In addition, the patent technical solution with the above application number 202222649604.1 also has a problem. The contact between the hot pressing plate or bottom plate in the above structure and the upper and lower end surfaces of the wooden board is direct and purely rigid contact, and the hot pressing of the veneer layer is secondary hot pressing relative to the wooden board of the veneer panel. Therefore, once the wooden board is unevenly stressed or the top or bottom surface of the wooden board is locally overstressed, it will cause the base material in the wooden board that has been hot-pressed and fixed as a whole to crack or even break, affecting the strength of the wooden board. Therefore, when hot-pressing the veneer layer, an elastic connecting layer needs to be provided between the hot pressing plate and the mold plate used for contacting the veneer panel to ensure that the mold plate can be completely in contact with the top surface of the veneer panel. However, in order to ensure the hot pressing effect of the mold plate, it is necessary to ensure that the hot pressing plate transfers heat to the mold plate as much as possible, which leads to the elastic connecting layer between the hot pressing plate and the mold plate requiring good thermal conductivity. Utility Model Content

[0011] The purpose of the present invention is to overcome the shortcomings of the existing technology and provide a heat-conducting elastic layer structure of a hot pressing plate. Through the woven structure of heat-conducting rubber bands and heat-conducting fibers and their respective structures and materials, the heat-conducting elastic layer can not only have good thermal conductivity but also have good elastic effect.

[0012] The technical solution adopted by this utility model is:

[0013] The heat-conductive elastic layer structure of the hot pressing plate is a woven fabric woven by heat-conductive rubber bands in the warp direction and heat-conductive fibers in the weft direction. The heat-conductive rubber bands are laid flat, and the heat-conductive fibers are twisted around the heat-conductive rubber bands in sequence.

[0014] A further improvement of the present invention is that the material of the heat-conducting rubber band is rubber added with boron nitride or aluminum oxide.

[0015] A further improvement of the present invention is that the material of the thermal conductive fiber is para-aramid fiber.

[0016] A further improvement of the present invention is that the heat-conducting rubber band is a tubular rubber band, and a copper wire is fixedly inserted into the tubular rubber band.

[0017] A further improvement of the present invention is that the wall thickness of the tubular rubber band is greater than or equal to the radius of the copper wire.

[0018] A further improvement of the present invention is that the thermally conductive fiber comprises a thermally conductive fiber unit A sequentially wound up and down around two adjacent thermally conductive rubber bands, and a thermally conductive fiber unit B sequentially wound up and down around two adjacent groups of thermally conductive rubber bands.

[0019] A further improvement of the present invention is that two adjacent thermal conductive fiber units A constitute a thermal conductive fiber group A, and two adjacent thermal conductive fiber units B constitute a thermal conductive fiber group B, and the thermal conductive fiber group A and the thermal conductive fiber group B are alternately distributed along the extension direction of the thermal conductive rubber band.

[0020] A further improvement of the present invention is that the thermally conductive fiber group A includes two thermally conductive fiber units A, and the thermally conductive fiber units A in the same thermally conductive fiber group A are wound around two adjacent thermally conductive rubber bands in an alternating manner.

[0021] A further improvement of the present invention is that the thermal conductive fiber group B includes two thermal conductive fiber units B, and the two thermal conductive fiber units B in the same thermal conductive fiber group B are wound alternately around two adjacent groups of thermal conductive rubber bands, and each group of thermal conductive rubber bands includes two thermal conductive rubber bands.

[0022] A further improvement of the present invention is that the two thermally conductive rubber bands wound each time by the two thermally conductive fiber units B of the thermally conductive fiber group B are two adjacent thermally conductive rubber bands belonging to different groups of two adjacent groups wound by the two thermally conductive fiber units B of another thermally conductive fiber group B adjacent to the thermally conductive fiber group B.

[0023] The beneficial effects of the present invention are:

[0024] First, the heat-conducting elastic layer structure of the hot pressing plate of the present invention can make the heat-conducting elastic layer have not only good thermal conductivity but also good elastic effect through the woven structure of the heat-conducting rubber and heat-conducting fibers and their respective structures and materials.

[0025] Secondly, the heat-conductive elastic layer structure of the hot pressing plate of the present invention, the heat-conductive fiber units A and the heat-conductive fiber units B are respectively woven with the heat-conductive rubber bands. Since the heat-conductive fiber units A in the same heat-conductive fiber group A are wound around two adjacent heat-conductive rubber bands in an alternating manner, not only can the adjacent heat-conductive rubber bands in the warp direction be woven and fixed, but also, since the heat-conductive fiber units B are sequentially wound around the two adjacent groups of heat-conductive rubber bands, the connection tightness of the heat-conductive rubber bands in the corresponding areas of each group of heat-conductive rubber bands wound around the heat-conductive fiber units B is relatively looser and the deformation margin is larger. This facilitates the relatively small force exerted on the heat-conductive fiber units B after the heat-conductive rubber bands are compressed and deformed, thereby preventing the heat-conductive fiber units B from being damaged by excessive pressure.

[0026] Third, the heat-conducting elastic layer structure of the hot pressing plate of the present invention ensures that the heat-conducting rubber band has a certain rigid supporting force and further improves the heat-conducting performance of the heat-conducting rubber band by using the heat-conducting rubber band as a tubular rubber band with copper wire fixed therein.

[0027] Fourthly, in the heat-conducting elastic layer structure of the hot pressing plate of the present invention, the wall thickness of the tubular rubber band is greater than or equal to the radius of the copper wire, thereby ensuring the elastic effect of the heat-conducting elastic layer.

[0028] Fifth, the heat-conductive elastic layer structure of the hot pressing plate of the present invention uses heat-conductive fibers twisted up and down in sequence around each flatly laid heat-conductive elastic band, thereby further ensuring the flatness of the braided fabric, thereby facilitating heat conduction and reducing the gaps formed by the bending of the heat-conductive elastic band, which causes heat to be retained in the gaps and reduces the thermal conductivity.

[0029] Sixth, the heat-conductive elastic layer structure of the hot pressing plate of the present invention makes the weaving structure of the heat-conductive fibers and the heat-conductive elastics more uniform, and the connection between adjacent heat-conductive elastics is more uniform and stable, by staggering the two heat-conductive fiber units B of the adjacent heat-conductive fiber groups B around the heat-conductive elastics. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is an enlarged schematic diagram of the main cross-section of part of the structure of this application.

[0031] Figure 2 This is an enlarged top view of part of the structure of this application.

[0032] Figure 3 This is a schematic diagram of the main view of this application when connected to the hot pressing plate. DETAILED DESCRIPTION

[0033] Combine Figure 1 and Figure 2 It can be seen that the thermally conductive elastic layer structure of the hot pressing plate is that the thermally conductive elastic layer 5 is a woven fabric woven by the thermally conductive rubber bands 21 in the warp direction and the thermally conductive fibers 22 in the weft direction. The thermally conductive rubber bands 21 are laid flat, and the thermally conductive fibers 22 are twisted around the thermally conductive rubber bands 21 in sequence.

[0034] The material of the heat-conducting rubber band 21 is rubber added with boron nitride or aluminum oxide (for example, the rubber of the technical solution disclosed in patent application number 201610580449.9 can be used).

[0035] The material of the thermal conductive fiber 22 is para-aramid fiber.

[0036] The heat-conducting rubber band 21 is a tubular rubber band 23 , and a copper wire 24 is inserted and fixed in the tubular rubber band 23 .

[0037] The wall thickness of the tubular elastic band 23 is greater than or equal to the radius of the copper wire 24 .

[0038] The heat-conducting fiber 22 includes a heat-conducting fiber unit A221 sequentially wound up and down around two adjacent heat-conducting rubber bands 21 , and a heat-conducting fiber unit B222 sequentially wound up and down around two adjacent groups of heat-conducting rubber bands 21 .

[0039] Two adjacent thermal conductive fiber units A221 constitute a thermal conductive fiber group A, and two adjacent thermal conductive fiber units B222 constitute a thermal conductive fiber group B. The thermal conductive fiber group A and the thermal conductive fiber group B are alternately distributed along the extension direction of the thermal conductive elastic band 21.

[0040] The thermal conductive fiber group A includes two thermal conductive fiber units A221 . The thermal conductive fiber units A221 in the same thermal conductive fiber group A are wound around two adjacent thermal conductive rubber bands 21 in an alternating manner.

[0041] The thermal conductive fiber group B includes two thermal conductive fiber units B222 . The two thermal conductive fiber units B222 in the same thermal conductive fiber group B are wound alternately around two adjacent groups of thermal conductive rubber bands 21 . Each group of thermal conductive rubber bands 21 includes two thermal conductive rubber bands 21 .

[0042] The two thermally conductive rubber bands 21 wound each time by the two thermally conductive fiber units B222 of the thermally conductive fiber group B are two adjacent thermally conductive rubber bands 21 belonging to different groups and wound by the thermally conductive fiber units B222 of another thermally conductive fiber group B adjacent to the thermally conductive fiber group B.

[0043] By virtue of the braided structure of the heat-conducting elastic bands 21 and the heat-conducting fibers 22 as well as their respective structures and materials, the heat-conducting elastic layer 5 can have not only good heat-conducting performance but also good elasticity.

[0044] The braided structures of the thermally conductive fiber units A221 and the thermally conductive fiber units B222 with the thermally conductive rubber bands 21 are respectively arranged such that, since the thermally conductive fiber units A221 in the same thermally conductive fiber group A are wound vertically and staggered around two adjacent thermally conductive rubber bands 21, not only can the adjacent thermally conductive rubber bands 21 in the warp direction be braided and fixed, but also, since the thermally conductive fiber units B222 are sequentially wound vertically around the two adjacent groups of thermally conductive rubber bands 21, the connection tightness of the thermally conductive rubber bands 21 in the corresponding areas of each group of thermally conductive rubber bands 21 wound by the thermally conductive fiber units B222 is relatively looser and the deformation margin is larger. This facilitates that the force exerted on the thermally conductive fiber units B222 after the thermally conductive rubber bands 21 are compressed and deformed is relatively small, thereby preventing the thermally conductive fiber units B222 from being damaged by excessive pressure.

[0045] The heat-conducting rubber band 21 is a tubular rubber band 23 through which the copper wire 24 is fixed, thereby ensuring that the heat-conducting rubber band 21 has a certain rigid supporting force and further improving the heat-conducting performance of the heat-conducting rubber band 21 .

[0046] The wall thickness of the tubular elastic band 23 is greater than or equal to the radius of the copper wire 24 , thereby ensuring the elastic effect of the thermally conductive elastic layer.

[0047] The heat-conducting fibers 22 are twisted up and down in sequence around the flatly laid heat-conducting elastics 21, thereby further ensuring the flatness of the woven fabric, thereby facilitating heat conduction and reducing the gaps formed by the bending of the heat-conducting elastics 21, which cause heat to remain in the gaps and reduce the thermal conductivity.

[0048] By staggering the winding of the two thermal conductive fiber units B222 of the adjacent thermal conductive fiber group B around the thermal conductive rubber band 21, the braided structure of the thermal conductive fibers and the thermal conductive rubber band is more uniform, and the connection between adjacent thermal conductive rubber bands is also more uniform and stable.

[0049] like Figure 3 It can be seen that a mold plate 4 is fixed to the bottom surface of the hot pressing plate 1, a substrate 7 is fixed to the top surface of the hot pressing plate 1, a heat-conductive elastic layer 5 is provided between the hot pressing plate 1 and the mold plate 4, a heat-insulating layer 8 is provided between the hot pressing plate 1 and the substrate 7, and an embossed layer 13 is provided on the bottom surface of the mold plate 4.

[0050] The front side wall and the rear side wall of the hot pressing plate 1 are respectively fixed with connecting side plates 3, the molding plate 4 clamps the heat-conductive elastic layer 5 to the hot pressing plate 1 through the connecting side plates 3, and the base plate 7 clamps the heat-insulating layer 8 to the hot pressing plate 1 through the connecting side plates 3.

Claims

1. The heat-conductive elastic layer structure of the hot pressing plate is characterized by: The thermally conductive elastic layer (5) is a braided fabric woven by warp-wise thermally conductive rubber bands (21) and weft-wise thermally conductive fibers (22); the thermally conductive rubber bands (21) are laid flat, and the thermally conductive fibers (22) are twisted around the thermally conductive rubber bands (21) in sequence.

2. The thermally conductive elastic layer structure of the hot pressing plate according to claim 1, wherein: The material of the heat-conducting rubber band (21) is rubber added with boron nitride or aluminum oxide.

3. The thermally conductive elastic layer structure of the hot pressing plate according to claim 1, wherein: The material of the thermal conductive fiber (22) is para-aramid fiber.

4. The thermally conductive elastic layer structure of the hot pressing plate according to claim 1, wherein: The heat-conducting rubber band (21) is a tubular rubber band (23), and a copper wire (24) is inserted and fixed in the tubular rubber band (23).

5. The heat-conductive elastic layer structure of the hot pressing plate according to claim 4, wherein: The wall thickness of the tubular rubber band (23) is greater than or equal to the radius of the copper wire (24).

6. The thermally conductive elastic layer structure of the hot pressing plate according to claim 1, wherein: The heat-conducting fiber (22) comprises a heat-conducting fiber unit A (221) sequentially wound up and down around two adjacent heat-conducting rubber bands (21), and a heat-conducting fiber unit B (222) sequentially wound up and down around two adjacent groups of heat-conducting rubber bands (21).

7. The thermally conductive elastic layer structure of the hot pressing plate according to claim 6, wherein: Two adjacent heat-conducting fiber units A (221) constitute a heat-conducting fiber group A, and two adjacent heat-conducting fiber units B (222) constitute a heat-conducting fiber group B. The heat-conducting fiber group A and the heat-conducting fiber group B are staggered and distributed in sequence along the extension direction of the heat-conducting rubber band (21).

8. The heat-conductive elastic layer structure of the hot pressing plate according to claim 7, wherein: The heat-conducting fiber group A comprises two heat-conducting fiber units A (221), and the heat-conducting fiber units A (221) in the same heat-conducting fiber group A are wound around two adjacent heat-conducting rubber bands (21) in an alternating manner.

9. The heat-conductive elastic layer structure of the hot pressing plate according to claim 7, wherein: The heat-conducting fiber group B comprises two heat-conducting fiber units B (222), and the two heat-conducting fiber units B (222) in the same heat-conducting fiber group B are wound alternately up and down around two adjacent groups of heat-conducting rubber bands (21), and each group of heat-conducting rubber bands (21) comprises two heat-conducting rubber bands (21).

10. The heat-conductive elastic layer structure of the hot pressing plate according to claim 9, wherein: The two thermally conductive rubber bands (21) wound each time by the two thermally conductive fiber units B (222) of the thermally conductive fiber group B are both adjacent two thermally conductive rubber bands (21) belonging to different groups and wound by the two thermally conductive fiber units B (222) of another thermally conductive fiber group B adjacent to the thermally conductive fiber group B.

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