Carbon fiber plate hot-pressing tool

Abstract

The utility model relates to a carbon fiber plate hot-pressing tool, and relates to the technical field of pressing tools, the carbon fiber plate hot-pressing tool comprises a bearing part, the bearing part is provided with a first groove along a first direction, and the inner diameter of the first groove is larger than the outer diameter of a carbon fiber plate. The hot-pressing resin plate has the effect of effectively solving the problems of badness and resin overflow of the hot-pressing resin plate.

Description

Technical Field

[0001] The present application relates to the technical field of pressing tooling, and in particular to a hot pressing tooling for carbon fiber plates. Background Art

[0002] In recent years, with the development of high-performance fibers, high-performance fiber composites have also developed rapidly. In particular, carbon-carbon composites have been fully verified with the rise of photovoltaic and new energy industries. At the same time, carbon-carbon composites, as an excellent thermal structure and functional engineering material, have made great progress in the military industry since their birth. Its important use is to manufacture warhead parts. Due to its high temperature resistance and good friction properties, it has been widely used in solid rocket engine nozzles, space shuttle structures, aircraft brakes, thermal components and mechanical fasteners, heat exchangers, and hot end components of aircraft engines.

[0003] Carbon fiber resin board is a carbon-based composite material reinforced by carbon fiber and its fabric. It has the advantages of low density, high modulus, high thermal conductivity, low expansion coefficient, good friction performance, good thermal shock resistance, high dimensional stability, etc. It is widely used in thermal insulation parts.

[0004] The traditional preparation process of carbon fiber resin board is to lay a layer of demoulding cloth on the steel plate, place the carbon fiber preform sheet on the demoulding cloth, pour a specific resin, apply it evenly, cover it with another layer of demoulding cloth, put it into the hot pressing equipment, and press it into shape under a certain temperature, pressure and time. After the resin is completely cured, a carbon fiber resin board is formed.

[0005] Although the use of release cloth on the upper and lower surfaces of traditional carbon fiber resin plates during hot pressing solves the problem of demolding in the later stage, the release cloth is relatively soft and prone to wrinkles, and resin residues are easily left on it, which will not only cause pits, grooves, wrinkles and other undesirable conditions on the surface of the carbon fiber resin plate, but also cause foreign matter on the surface of the resin plate, reducing the utilization rate of the resin plate. At the same time, since the release cloth is used less frequently, replaced frequently, and expensive, it indirectly increases the preparation cost of the resin plate. In addition, when the release cloth is used during the hot pressing of the resin plate, when pressurization is applied, the excess resin that flows out of the squeezed resin plate flows out to the pressing plate, machine and ground, polluting the equipment and working environment, and is difficult to clean up later. Therefore, there is an urgent need for a method that can effectively solve the problems of hot pressing resin plates and resin overflow, improve the hot pressing efficiency of resin plates, reduce production costs, and keep the working environment clean and orderly. Utility Model Content

[0006] In order to effectively solve the problems of defects in hot-pressed resin plates and resin overflow, the present application provides a carbon fiber plate hot-pressing tooling.

[0007] The present application provides a carbon fiber sheet hot pressing tooling, which adopts the following technical solution:

[0008] A carbon fiber plate hot pressing tool comprises a supporting member, wherein the supporting member is provided with a first groove along a first direction, and the inner dimension of the first groove is larger than the outer dimension of the carbon fiber plate.

[0009] By adopting the above technical scheme, when the carbon fiber sheet is hot pressed, a release cloth is laid on the steel plate, the carbon fiber resin is placed on the release cloth, the resin is poured and a layer of release cloth is laid on the resin, and the sheet is pressed by hot pressing equipment. Since the release cloth is relatively soft, pits or wrinkles may appear on the carbon fiber resin sheet during pressing, affecting the flatness, and the resin may overflow onto the pressing plate or the machine during pressing, polluting the equipment. For this reason, a supporting member is provided, and a first groove is opened on the supporting member along a first direction, the carbon fiber sheet is placed in the first groove, and the inner size of the first groove is larger than the outer size of the carbon fiber sheet, and the sheet is pressed by hot pressing equipment, which can improve the flatness of the carbon fiber resin sheet and avoid resin overflow.

[0010] Optionally, the inner dimension of the first groove gradually decreases from top to bottom along the first direction.

[0011] By adopting the above technical solution, in order to more smoothly place the carbon fiber plate in the first groove, the inner dimension of the first groove gradually decreases along the first direction, which facilitates the smooth placement of the plate.

[0012] Optionally, a through hole is formed through one side of the side wall of the first groove close to the bottom wall.

[0013] By adopting the above technical solution, since the overflowed resin still accumulates in the first groove, it will cause material waste. By setting a through hole on the side wall of the first groove, the overflowed resin will flow out from the through hole, and personnel can collect the resin through a clean container, thereby realizing the recycling and reuse of the resin.

[0014] Optionally, it also includes a material extraction component, which includes a material extraction pipe and a vacuum pump. One end of the material extraction pipe is fixedly connected to the through hole, and the other end is located outside the supporting member. The vacuum pump is fixedly connected to the material extraction pipe.

[0015] By adopting the above technical solution, in order to facilitate the discharge of the overflowed resin in the first groove, a suction pipe is provided at the opening, and the resin is extracted by a vacuum pump.

[0016] Optionally, it further includes a scraping assembly, wherein the scraping assembly includes a slider and a first scraper;

[0017] A first slide groove is formed on the side wall of the first groove, the first slide groove is parallel to the length direction of the supporting member, the slider is located in the first slide groove, and the slider is slidably connected to the supporting member along the groove wall of the first slide groove;

[0018] The first scraper is fixedly connected to both ends of the sliding block.

[0019] By adopting the above technical solution, when the carbon fiber sheet is pressed, part of the resin will adhere to the side wall of the first groove. In order to reduce waste and improve the resin recovery rate, a first scraper is provided. The first scraper is connected to the supporting member by sliding along the groove wall of the first slide groove through a slider, so that the resin on the side wall of the first groove can be scraped off by the first scraper toward the side close to the opening.

[0020] Optionally, the sum of the lengths of the two first scrapers and the sliding block is not less than the length of the first sliding groove.

[0021] By adopting the above technical solution, in order to avoid excessive resin accumulation in the first chute, which makes it difficult to clean, the sum of the lengths of the two first scrapers and the slider is not less than the length of the first chute, so that the two scrapers completely cover the first chute.

[0022] Optionally, a dustproof component is further included, wherein the dustproof component includes a cover plate, wherein the cover plate is located at the opening of the supporting member, and wherein the cover plate is directly or indirectly detachably connected to the sliding block.

[0023] By adopting the above technical solution, before and after the pressing operation, in order to reduce dust or other debris from falling into the first groove, the cover plate is located at the opening of the supporting member so that the first groove is covered by the cover plate.

[0024] Optionally, the cover plate includes a fixed part and a movable part, the fixed part is detachably connected to the slider, the movable part is slidably connected to one end close to the fixed part, and the movable part is overlapped with the supporting member at one end away from the fixed part; a second scraper is fixedly connected to the bottom wall of the movable part, and a side of the second scraper away from the movable part is in contact with the bottom wall of the first groove.

[0025] By adopting the above technical solution, since the inner dimension of the first groove is larger than the outer dimension of the carbon fiber plate, some resin will remain on the bottom wall of the first groove during pressing. In order to clean the resin on the bottom wall of the first groove, the cover plate is a retractable structure, and the bottom wall of the movable part is fixedly connected to the second scraper. When the movable part slides, it drives the second scraper to slide, so as to scrape the resin on the bottom wall of the first groove to a position close to the through hole for recycling.

[0026] Optionally, the bottom wall of the fixing portion is provided with a second sliding groove for the second scraper to slide.

[0027] By adopting the above technical solution, in order to enable the second scraper to slide a longer distance in the first groove, the bottom wall of the fixing portion is provided with a second sliding groove for accommodating the second scraper.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. The present application provides a first groove in the support member, the carbon fiber sheet is located in the first groove, and resin is poured on the carbon fiber sheet. When pressing, the overflowed resin will be gathered in the first groove, thereby preventing the resin from overflowing on the work surface and polluting the environment;

[0030] 2. The present application provides a through hole on the wall of the first groove so as to recycle the overflowed resin through the through hole;

[0031] 3. The present application can scrape and clean the resin adhering to the side wall of the first groove by setting a scraping component. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the structure of the carbon fiber sheet hot pressing tooling support component of the present application;

[0033] Figure 2 It is a structural schematic diagram of the material extraction component of this application;

[0034] Figure 3 It is a schematic diagram of the structure of the scraping component of the present application;

[0035] Figure 4 It is a schematic diagram of the structure of the connection between the slider and the supporting member of the scraping assembly of the present application;

[0036] Figure 5 It is a schematic diagram of the structure of the dustproof component of the present application;

[0037] Figure 6 It is a structural schematic diagram of the second scraper of the present application.

[0038] Explanation of the reference numerals: 1. supporting member; 11. first groove; 12. through hole; 13. first slide groove; 2. extraction assembly; 21. extraction pipe; 22. vacuum pump; 3. scraping assembly; 31. slider; 311. first handle; 312. connecting seat; 32. first scraping plate; 33. elastic member; 4. dustproof assembly; 41. cover plate; 411. fixing portion; 4111. second slide groove; 412. movable portion; 4121. second handle; 42. fixing sleeve; 43. second scraper. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-6 This application is described in further detail.

[0040] The present application embodiment discloses a carbon fiber sheet hot pressing tool. Figure 1The carbon fiber sheet hot pressing tooling includes a supporting member 1, which is provided with a first groove 11 along a first direction. The inner dimension of the first groove 11 is larger than the outer dimension of the carbon fiber sheet. The carbon fiber sheet is placed in the first groove 11, and resin is poured and coated on the carbon fiber sheet. A steel plate is covered on the upper surface, and the carbon fiber sheet is pressed and formed by hot pressing equipment. During the process, since the carbon fiber sheet is located in the first groove 11, the resin overflowing from the extruded resin sheet can be retained in the first groove 11 during pressing, thereby reducing the overflow of the resin from the machine and the ground.

[0041] Reference Figure 1 In order to better gather the overflowed resin, the inner size of the first groove 11 gradually decreases from top to bottom so that the resin adhering to the side wall of the first groove 11 can flow down along the side wall. In some embodiments, the material of the supporting member 1 can be stainless steel, or a high-temperature resistant metal or non-metal material with a smooth surface. In this embodiment, the material of the supporting member 1 is stainless steel, and the surface of the stainless steel material is smooth. The surface of the pressed carbon fiber resin plate is smooth, which can reduce the appearance of pits, wrinkles and foreign matter on the surface of the carbon fiber resin plate, thereby further improving product quality.

[0042] Reference Figure 1 In order to place the carbon fiber sheet in the first groove 11 more smoothly, the inner dimension of the first groove 11 gradually decreases from top to bottom along the first direction to facilitate personnel to take the carbon fiber sheet. In this embodiment, the first groove 11 is a rectangular groove with a gradually decreasing inner dimension.

[0043] Reference Figure 1 In order to recycle and reuse the resin overflowing from the first groove 11, a through hole 12 is formed on one side of the side wall of the first groove 11 close to the bottom wall, and the overflowing resin flows out from the through hole 12. In some embodiments, there may be one or more through holes 12. In order to improve the efficiency of resin outflow, in this embodiment, there are two through holes 12. The two through holes 12 are respectively located on the side walls of the first groove 11 parallel to each other, and the two through holes 12 are diagonally distributed.

[0044] Reference Figure 1 and Figure 2 In order to extract the overflowed resin, the carbon fiber sheet hot pressing tooling also includes an extraction component 2, which includes an extraction pipe 21 and a vacuum pump 22. One end of the extraction pipe 21 is fixedly connected to the through hole 12, and the other end is located outside the supporting member 1. The vacuum pump 22 is fixedly connected to the extraction pipe 21, so that the resin overflowing in and out of the first groove 11 can be extracted by the extraction pipe 21 for recycling.

[0045] Reference Figure 3 and Figure 4, because the resin has a certain viscosity, some of the resin will adhere to the side wall of the first groove 11. For this reason, the carbon fiber sheet hot pressing tooling also includes a scraping component 3, and the scraping component 3 includes a slider 31 and a first scraping plate 32. The groove side wall of each first groove 11 is provided with a first slide groove 13 along the length direction of the supporting member 1, and the slider 31 is located in the first slide groove 13. In this embodiment, the first slide groove 13 is a T-shaped groove, and the slider 31 is a T-shaped block. One end of the slider 31 is located in the first slide groove 13, and the other end is located outside the first slide groove 13. The slider 31 is slidably connected to the supporting member 1 along the groove wall of the first slide groove 13. The slider 31 is parallel to the two ends of the supporting member 1 in the length direction. A first scraping plate 32 is fixedly connected, and the bottom wall of the first scraping plate 32 is in contact with the groove side wall of the first groove 11. When the slider 31 is located in the middle position of the first slide groove 13, the two first scraping plates 32 are fixedly connected. The sum of the lengths of the plate 32 and the slider 31 is greater than or equal to the length of the first slide groove 13, so that the first slide groove 13 is completely covered by the two first scraping plates 32 to prevent resin from gathering in the first slide groove 13, and the slider 31 is moved along the groove wall of the first slide groove 13 toward the side close to the through hole 12, so as to drive the scrapers on both sides of the slider 31 to scrape the resin adhered to the groove side wall of the first groove 11, so that the resin on the groove side wall of the first groove 11 flows out from the through hole 12, reducing the waste of resin material; in order to achieve a better scraping effect, the thickness of the first scraping plate 32 gradually decreases toward the side away from the slider 31, and in order to facilitate personnel to move the slider 31, a first handle 311 is fixedly connected to one end of the slider 31, the first handle 311 is parallel to the groove side wall of the first groove 11, and the first handle 311 is located on the side of the slider 31 away from the bottom wall of the first groove 11.

[0046] Reference Figure 4 In order to reset the position of the scraper, the scraping assembly 3 also includes an elastic member 33. Two elastic members 33 are provided in each first slide groove 13. One end of the elastic member 33 is fixedly connected to the slider 31, and the other end is fixedly connected to the side wall of the first slide groove 13. The extension direction of the elastic member 33 is parallel to the length direction of the first slide groove 13. In this embodiment, the elastic member 33 is a compression spring.

[0047] Reference Figure 3 , Figure 4 and Figure 5In order to further improve the product quality of the carbon fiber resin plate and reduce the amount of debris entering the first groove 11, the carbon fiber plate hot pressing tooling also includes a dustproof component 4, which includes a cover plate 41 and a fixed sleeve 42. The cover plate 41 is located on the top of the slider 31, so that the first groove 11 is closed by the cover plate 41. The cover plate 41 and the slider 31 are detachably connected. The slider 31 is located at the center of the first slide groove 13 under the force of the elastic member 33, so that the position of the cover plate 41 is positioned by the slider 31. In some embodiments, the cover plate 41 and the slider 31 can be connected in a manner of a wedge block and a wedge groove, or can be connected in a manner of a pin connection or a snap connection. As long as the connection method extended on the basis of the present application is within the protection scope of the present application, as a preference, in the present embodiment, the cover plate 41 and the slider 31 are plug-in connected;

[0048] Reference Figure 5 The cover plate 41 is a retractable structure. The cover plate 41 includes a fixed portion 411 and a movable portion 412. The fixed portion 411 is fixedly connected to a fixed sleeve 42 on one side close to the slider 31. The slider 31 is fixedly connected to a connecting seat 312 on one side close to the fixed portion 411. The connecting seat 312 and the fixed sleeve 42 are both parallel to the first direction. The fixed sleeve 42 is plugged into the connecting seat 312. In some embodiments, the shapes of the fixed sleeve 42 and the connecting seat 312 can be round or square. As long as the fixed sleeve 42 and the connecting seat 312 can be fixed, The shapes of the sleeve 42 and the connecting seat 312 are fixed within the protection scope of the present application. In this embodiment, the cross-section of the connecting seat 312 is circular, and the cross-section of the fixed sleeve 42 is circular. The movable portion 412 of the cover plate 41 is slidably connected to the end close to the fixed portion 411 along the length direction of the supporting member 1. When the movable portion 412 slides toward the side away from the fixed portion 411, the connecting seat 312 on the side wall of the first groove 11 supports the movable portion 412, that is, the movable portion 412 is overlapped on the connecting seat 312.

[0049] Reference Figure 6Since the outer dimension of the carbon fiber plate is smaller than the inner dimension of the first groove 11, part of the resin will be located on the bottom wall of the first groove 11 during pressing. In order to scrape off the resin on the bottom wall of the first groove 11, the bottom wall of the movable portion 412 is fixedly connected with a second scraper 43. The side of the second scraper 43 away from the movable portion 412 contacts the bottom wall of the first groove 11. The second scraper 43 is vertically arranged. When the movable portion 412 slides along the length direction of the supporting member 1, the second scraper 43 is further driven to slide to scrape off the resin on the bottom wall of the first groove 11. The resin on the bottom wall of the groove 11 is scraped off; since the cover plate 41 is a retractable structure, in order to enable the second scraper 43 to slide a longer distance, a second slide groove 4111 is opened on the bottom wall of the fixed portion 411 to accommodate the sliding of the second scraper 43, so that the second slide groove 4111 enables the second scraper 43 to move a longer distance; in order to facilitate personnel to move the movable portion 412 of the cover plate 41, a second handle 4121 is fixedly connected to the side of the movable portion 412 away from the fixed portion, so that a person can hold the second handle 4121 to move the movable portion 412 out.

[0050] Reference Figure 6 Since the fixed portion 411 and the connecting seat 312 are detachably connected, that is, the fixed portion 411 can be fixed to the connecting seat 312 on any side wall of the first groove 11, when the movable portion 412 slides along the length direction of the supporting member 1, the second scraper 43 simultaneously scrapes the resin on the bottom wall of the first groove 11. When the movable portion 412 slides to cover the first groove 11, it can further reduce the entry of debris into the first groove 11.

[0051] The implementation principle of a hot pressing tool for a carbon fiber plate in an embodiment of the present application is as follows: placing the carbon fiber plate in a first groove 11, pouring resin on the carbon fiber plate, placing a steel plate on the resin, and pressing it through a hot pressing device. During pressing, part of the resin will overflow into the first groove 11, and the overflowed resin will flow out from the through hole 12 for recycling. Since part of the resin will adhere to the side wall of the first groove 11, the first handle 311 is pulled to slide the first scraper along the groove wall of the first groove 11 to scrape off the resin on the side wall of the first groove 11. In order to reduce the entry of debris into the first groove 11, a cover plate 41 is provided to close the first groove 11. The movable part 412 of the sliding cover plate 41 can drive the second scraper 43 to scrape off the resin on the bottom wall of the first groove 11 to the side close to the through hole 12.

[0052] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A hot pressing tool for carbon fiber sheets, characterized in that: The invention comprises a supporting member (1), wherein the supporting member (1) is provided with a first groove (11) along a first direction, the inner dimension of the first groove (11) is larger than the outer dimension of the carbon fiber plate, the inner dimension of the first groove (11) gradually decreases from top to bottom along the first direction, and the first groove (11) is a rectangular groove with gradually decreasing inner dimension.

2. A carbon fiber sheet hot pressing tool according to claim 1, characterized in that: A through hole (12) is formed through a side of the first groove (11) near the bottom wall.

3. A carbon fiber sheet hot pressing tool according to claim 2, characterized in that: It also includes a material extraction component (2), the material extraction component (2) includes a material extraction pipe (21) and a vacuum pump (22), one end of the material extraction pipe (21) is fixedly connected to the through hole (12), and the other end is located outside the supporting member (1), and the vacuum pump (22) is fixedly connected to the material extraction pipe (21).

4. A carbon fiber sheet hot pressing tool according to any one of claims 1 to 3, characterized in that: It also includes a scraping assembly (3), wherein the scraping assembly (3) includes a slider (31) and a first scraper; A first slide groove (13) is provided on the groove side wall of the first groove (11), the first slide groove (13) is parallel to the length direction of the supporting member (1), the sliding block (31) is located in the first slide groove (13), and the sliding block (31) is slidably connected to the supporting member (1) along the groove wall of the first slide groove (13); Both ends of the sliding block (31) are fixedly connected to the first scraper.

5. The hot pressing tool for carbon fiber sheet according to claim 4, characterized in that: The sum of the lengths of the two first scrapers and the sliding block (31) is not less than the length of the first sliding groove (13).

6. The hot pressing tool for carbon fiber sheet according to claim 4, characterized in that: It also includes a dustproof component (4), the dustproof component (4) includes a cover plate (41), the cover plate (41) is located at the opening of the supporting member (1), and the cover plate (41) is directly or indirectly detachably connected to the slider (31).

7. A carbon fiber sheet hot pressing tool according to claim 6, characterized in that: The cover plate (41) comprises a fixed portion (411) and a movable portion (412); the fixed portion (411) is detachably connected to the slider (31); the movable portion (412) is slidably connected to an end close to the fixed portion (411); an end of the movable portion (412) away from the fixed portion (411) is overlapped with the supporting member (1); a second scraper (43) is fixedly connected to the bottom wall of the movable portion (412); a side of the second scraper (43) away from the movable portion (412) contacts the bottom wall of the first groove (11).

8. The hot pressing tool for carbon fiber sheet according to claim 7, characterized in that: The bottom wall of the fixing portion (411) is provided with a second sliding groove (4111) for the second scraper (43) to slide.

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