Gum dipping device

Abstract

The utility model relates to the field of pultrusion of fiber reinforced materials, in particular to a gum dipping device which comprises a gum dipping tank and at least one limiting structure. Wherein the gum dipping tank is used for performing gum dipping on fibers; each group of limiting structures comprises two limiting structures, the two limiting structures in the same group are oppositely mounted on the outer sides of the first side wall and the second side wall, opposite to each other, of the gum dipping tank, and the limiting structures are used for limiting the bulked yarns on the outer side of the first side wall and the outer side of the second side wall. By means of the design, friction between the bulked yarn and the side wall of the gum dipping groove is avoided, the yarn skein phenomenon is avoided, the production efficiency is improved, and meanwhile the raw material cost is reduced.

Description

Technical Field

[0001] The present application relates to the field of pultrusion of fiber-reinforced materials, and in particular to a dipping device. Background Art

[0002] During the production process of carbon glass fiber composite pultruded sheets, bulked yarn needs to be used for edging. The bulked yarn does not need to be impregnated with glue, but needs to pass through the impregnation device before entering the mold for pultrusion molding.

[0003] However, the current dipping device is not equipped with a structure to limit the bulked yarn. When the bulked yarn passes through both sides of the dipping device, it will rub against the side walls of the dipping tank, causing the bulked yarn to be scraped and scattered; in addition, the bulked yarn will flip over and cause the yarn to become skeined, which reduces the success rate of preparing carbon glass fiber composite pultruded sheets, causes waste of raw materials, and increases raw material costs. Utility Model Content

[0004] In order to solve the above technical problems, the present application provides a dipping device, which saves costs and improves the manufacturing success rate.

[0005] According to some embodiments, the present application provides a dipping device comprising:

[0006] Glue dipping tank, used for dipping fibers into glue;

[0007] At least one group of limiting structures, each group of limiting structures includes two limiting structures, and the two limiting structures in the same group are relatively installed on the outside of the first side wall and the second side wall opposite to each other in the dipping tank, and the limiting structures are used to limit the bulked yarn on the outside of the first side wall and the outside of the second side wall.

[0008] In some embodiments of the present application, the limiting structure includes a first yarn threading plate and a first mounting plate, the first yarn threading plate is perpendicular to the first side wall or the second side wall of the glue dipping tank; the first mounting plate is used to install the limiting structure.

[0009] In some embodiments of the present application, two first mounting plates are provided, and the two first mounting plates are respectively provided at the upper and lower ends of the first yarn threading plate.

[0010] In some embodiments of the present application, the first yarn threading plate is provided with a plurality of first through holes spaced apart from top to bottom, and the first through holes are used for allowing the bulked yarn to pass through.

[0011] In some embodiments of the present application, yarn guide porcelain eyes are installed on the first through holes.

[0012] In some embodiments of the present application, the limiting structure is installed on the outer surfaces of the first side wall and the second side wall of the dipping tank.

[0013] In some embodiments of the present application, the dipping device also includes a base and a bracket, the bracket includes two groups of support legs arranged at intervals along the conveying direction of the bulked yarn, each group of the support legs includes two support legs, the two support legs in the same group are located on the outside of the first side wall and the second side wall opposite to the dipping tank, and the support legs are connected to the base and the notch of the dipping tank, and the two groups of the limiting structures are respectively installed on the two groups of the support legs.

[0014] In some embodiments of the present application, the bracket further includes two first cross beams, each of which is used to connect the two support legs in the same group.

[0015] In some embodiments of the present application, the base includes a second crossbeam extending along the conveying direction of the bulked yarn, and a support plate is fixedly mounted on the second crossbeam, and the support plate is used to support the reflux pump.

[0016] In some embodiments of the present application, the dipping device also includes two second yarn threading plates, which are spaced apart at the slot positions of the dipping tank, and the two second yarn threading plates are perpendicular to the conveying direction of the bulked yarn. A plurality of second through holes are provided on the second yarn threading plates, and the second through holes are used for the fibers to pass through so as to guide the fibers.

[0017] The dipping device provided in this application can achieve the following beneficial technical effects:

[0018] The dipping device provided in the present application limits the position of the bulked yarn by setting a limiting structure on the outer side of the first side wall and the second side wall of the dipping tank, thereby avoiding the bulked yarn from being scraped and scattered due to friction with the side walls of the dipping tank when passing through both sides of the dipping tank. In addition, it also avoids the occurrence of yarn skeining, saves raw material costs, and improves the success rate of preparing carbon glass fiber composite pultruded panels. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated into and constitute a part of the specification, illustrate embodiments of the present application and, together with the description, are used to explain the principles of the present application. In these drawings, similar reference numerals are used to represent similar elements. The drawings described below are some embodiments of the present application, not all embodiments. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0020] Figure 1 1 is a schematic structural diagram of a dipping device according to an embodiment of the present application;

[0021] Figure 2 yes Figure 1Schematic diagram of the structure of the middle limit structure.

[0022] Reference numerals:

[0023] 100, dipping tank; 110, first side wall; 120, second side wall; 130, second threading plate; 131, second through hole;

[0024] 200, limiting structure; 210, first yarn threading plate; 211, first through hole; 212, yarn guide eyelet; 220, first mounting plate;

[0025] 300, base; 310, second beam; 320, support plate; 330, third beam;

[0026] 400, bracket; 410, supporting leg; 420, first crossbeam. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other in any way.

[0028] Bulked yarn is a blend of two fibers with different shrinkage rates. The yarn is then treated with steam, hot air, or boiling water. The fibers with higher shrinkage shrink more and become concentrated in the center of the yarn, while the lower shrinkage fibers, due to their smaller shrinkage, are squeezed onto the surface of the yarn, forming a loop. Bulked yarn combines the high strength of long fibers with the bulkiness of short fibers. It is a modified glass fiber yarn with high-temperature and corrosion resistance, low thermal conductivity, and low bulk density. Using bulked yarn to hem fiber composites can enhance the material's strength and heat resistance.

[0029] The end of the bulked yarn is pulled from the yarn chamber to the dipping device and then enters the mold to achieve the edging of the pultruded sheet. In order to reduce the friction between the bulked yarn and the side walls of the dipping tank and the occurrence of yarn entanglement, an embodiment of the present application provides a dipping device. By setting a limiting structure on the outer side of the two side walls of the dipping tank, the bulked yarn is limited, thereby avoiding the bulked yarn from rubbing against the side walls of the dipping tank when passing through both sides of the dipping tank, resulting in the bulked yarn being scraped and scattered. In addition, the occurrence of yarn entanglement is avoided, the raw material cost is saved, and the success rate of the preparation of carbon glass fiber composite pultruded sheet is improved.

[0030] The following is a detailed description of the dipping device provided according to the present application in conjunction with the accompanying drawings.

[0031] Figure 1 and Figure 2 In the figure, the y-axis direction is the conveying direction of the bulked yarn and fiber.

[0032] An exemplary embodiment of the present application provides a dipping device, such as Figure 1 As shown, the dipping device includes a dipping tank 100 and at least one set of limiting structures 200. The dipping tank 100 is used to contain glue liquid, and the fiber is dipped in the dipping tank 100 and then enters the mold for pultrusion to obtain a fiber composite pultruded sheet.

[0033] At least one group of limiting structures 200 is provided. In the present embodiment, two groups of limiting structures 200 are provided. Each group of limiting structures 200 includes two limiting structures 200 relatively installed on the dipping tank 100. The two limiting structures 200 are respectively installed on the outside of the first side wall 110 and the second side wall 120 of the dipping tank 100. The limiting structure 200 is used to limit the bulked yarn passing through the outside of the first side wall 110 and the second side wall 120.

[0034] It should be noted that the fibers in this embodiment may be carbon-glass hybrid fibers. In other embodiments, the fibers may also be hybrid fibers of other inorganic or organic fibers, such as ceramic fibers and polyester fibers, without limitation. The adhesive is a combination of resin, adhesive, hardener, and curing agent. Dipping in the adhesive enhances the strength, corrosion resistance, and wear resistance of the finished product.

[0035] The process of using the above-mentioned dipping device for dipping is as follows: after the bulked yarn is pulled out through the yarn chamber, it enters the mold for molding through the limiting structure 200 set on the first side wall 110 and the second side wall 120 of the dipping tank 100, and the fiber is dipped in the dipping tank 100 and then enters the mold for pultrusion molding.

[0036] In this embodiment, the bulked yarn is restrained by means of a retaining structure 200 disposed on the outer sides of the first sidewall 110 and the second sidewall 120 of the dipping tank 100. This prevents the bulked yarn from coming into direct contact with the dipping tank 100 and further prevents the yarn from being scraped or scattered due to friction with the first and second sidewalls 110, 120 during movement. Furthermore, the retaining structure 200 prevents the bulked yarn from becoming tangled during movement, which could affect the hemming effect.

[0037] In some embodiments, as Figure 1 and Figure 2As shown, the limiting structure 200 includes a first yarn threading plate 210 and a first mounting plate 220. Since the limiting structure 200 is relatively installed on the outside of the first side wall 110 and the second side wall 120, the first yarn threading plate 210 installed on the first side wall 110 is perpendicular to the first side wall 110, and the first yarn threading plate 210 installed on the second side wall 120 is perpendicular to the second side wall 120; the limiting structure 200 is installed on the glue dipping tank 100 through the first mounting plate 220.

[0038] The shaved and scattered bulked yarn is easily pressed against the edge of the demoulding cloth after entering the mold, causing the demoulding cloth to be mixed. The first yarn threading plate 210 is vertically installed on the first side wall 110 or the second side wall 120 through the first mounting plate 220. The bulked yarn can be away from the side wall of the dipping tank 100, thereby avoiding the contact between the bulked yarn and the dipping tank 100 to the greatest extent, thereby avoiding the phenomenon of the bulked yarn being shaved and scattered due to the friction between the two.

[0039] In some embodiments, there are two first mounting plates 220, and the two first mounting plates 220 are respectively arranged at the upper and lower ends of the first yarn threading plate 210, that is, in the z-axis direction, the two first mounting plates 220 are arranged at the upper and lower ends of the yarn threading plate; screw holes are provided on the first mounting plates 220, and fasteners pass through the screw holes to fix the limiting structure 200 on the outer surface of the first side wall 110 or the second side wall 120 of the dipping tank 100, which not only achieves a stable installation, but also facilitates disassembly when the first yarn threading plate 210 needs to be replaced.

[0040] In some embodiments, continue to refer to Figure 1 and Figure 2 A plurality of first through holes 211 are arranged at intervals along the z-axis direction on the first yarn passing plate 210, and the spacing between the first through holes 211 is equal. The yarn bundle of the bulked yarn passes through the first through holes 211 and enters the mold, thereby avoiding the occurrence of skein in the bulked yarn.

[0041] In this embodiment, the limiting structure 200 is provided with two groups, i.e., two first yarn threading plates 210 are installed on the first side wall 110, and two first yarn threading plates 210 are also installed on the second side wall 120. The two first yarn threading plates 210 on the same side are at the same height in the z-axis direction, and the yarn bundles of the bulked yarn pass through the corresponding first through holes 211 on the two first yarn threading plates 210 in sequence along the y-axis direction. The number of yarn bundles is equal to the number of the first through holes 211, and the multiple bundles of the bulked yarn are parallel to each other between the two first yarn threading plates 210.

[0042] This design avoids the swaying of the bulked yarn due to air flow, and avoids foreign matter such as fine hairiness or dry glue of the adhesion fibers, thereby avoiding the presence of foreign matter on the produced boards, improving the production success rate and saving raw material costs.

[0043] In some embodiments, a yarn guide ceramic eye 212 is installed on the first through hole 211. Since ceramic has a high hardness and a smooth surface, the friction coefficient is small. Installing the yarn guide ceramic eye 212 on the first through hole 211 reduces the friction between the first through hole 211 of the first yarn threading plate 210 and the bulked yarn, greatly reducing the yarn scraping caused by the yarn threading plate.

[0044] In some embodiments, the limiting structure 200 is directly mounted on the outer surfaces of the first side wall 110 and the second side wall 120 of the dipping tank 100, and the limiting of the bulked yarn can be achieved through a simple structure.

[0045] In some embodiments, as Figure 1 As shown, the dipping device also includes a base 300 and a bracket 400, and the bracket 400 includes two groups of support legs 410. The two support legs 410 in the same group of support legs 410 are respectively located on the outside of the first side wall 110 and the second side wall 120 of the dipping tank 100, that is, they are arranged relative to each other along the x-axis direction, and the two groups of support legs 410 are arranged at intervals along the conveying direction of the bulked yarn, that is, the y-axis direction; the support legs 410 connect the base 300 and the notch of the dipping tank 100, and the two groups of limiting structures 200 are correspondingly installed on the two groups of support legs 410.

[0046] In this embodiment, the four support legs 410 in the two groups of support legs 410 are respectively located on the outside of the first side wall 110 or the second side wall 120 of the dipping tank 100, and the four support legs 410 are close to the four corners of the dipping tank 100; the support legs 410 connect the base 300 and the slot of the dipping tank 100. In the direction from top to bottom, the four support legs 410 are tilted and gradually away from the central axis, so the four limiting structures 200 installed on the four support legs 410 are also tilted compared to the z-axis.

[0047] By setting up the base 300 and the bracket 400, the dipping tank 100 is supported by the supporting legs 410, which facilitates the movement of the bulked yarn between the yarn chamber, the dipping device and the subsequent pultrusion die. At the same time, the bulked yarn is away from the ground, avoiding the possibility of adhesion of foreign matter.

[0048] In some embodiments, as Figure 1 As shown, the bracket 400 further includes two first crossbeams 420. Each first crossbeam 420 connects two supporting legs 410 in the same group. The first crossbeams 420 extend along the x-axis and are located in the middle of the supporting legs 410 along the z-axis. The provision of the first crossbeams 420 can make the bracket 400 more stable, thereby preventing the dipping device from shaking due to the movement of the bulked yarn and affecting the dipping effect.

[0049] In some embodiments, continue to refer to Figure 1The base 300 includes a second crossbeam 310 extending along the bulked yarn feed direction and two third crossbeams 330 extending along the x-axis. The two third crossbeams 330 and the second crossbeam 310 are arranged in an "I" shape. Each third crossbeam 330 is used to connect two supporting legs 410 in the same group. The third crossbeam 330 is longer in the x-axis direction than the first crossbeam 420. The supporting legs 410 connect the third crossbeams 330 and the notch of the dipping tank 100. This design makes the dipping device more stable.

[0050] The support plate 320 is mounted on the second crossbeam 310 and is used to support the reflux pump. The excess glue flowing down the fiber after immersion is pumped back to the immersion tank 100 by the reflux pump for reuse, thus saving raw material costs.

[0051] In some embodiments, the dipping device further includes two second threading plates 130 and a pressure roller. The two second threading plates 130 are installed at intervals at the slot positions of the dipping tank 100. The two second threading plates 130 are arranged in parallel and perpendicular to the conveying direction of the bulked yarn. The second threading plates 130 are provided with a plurality of second through holes 131. Along the conveying direction of the bulked yarn, the fiber bundle passes through the second through holes 131 of the first second threading plate 130, is pressed down by the pressure roller for dipping, and then passes through the corresponding second through holes 131 of the second second threading plate 130, thereby guiding the fibers.

[0052] In some embodiments, the dipping tank 100 can also be configured as a tank body that is wide at the top and narrow at the bottom when viewed from the x-axis direction. With this design, compared to the rectangular dipping tank 100, less glue can be used to achieve the same dipping effect on the fiber, saving raw material costs.

[0053] The process of producing fiber composite pultruded sheets using the above-mentioned impregnation device is as follows:

[0054] The first yarn threading plate 210 in the limiting structure 200 is fixed on the support leg 410 via the first mounting plate 220. The two support legs 410 in the same group are respectively located on the outside of the first side wall 110 and the second side wall 120 of the dipping tank 100, and the support legs 410 are connected to the notch of the dipping tank 100 and the third crossbeam 330 of the base 300; the two second yarn threading plates 130 are installed at the notch position of the dipping tank 100, and are both perpendicular to the conveying direction of the bulked yarn.

[0055] Fibers are drawn from the fiber preparation device, and bulked yarn is drawn from the yarn chamber. In the direction of bulked yarn delivery, the bulked yarn is divided into multiple bundles by the first through-holes 211 on the first threading plate 210. The bulked yarn bundles sequentially pass through the first through-holes 211 of the first threading plate 210 and the first through-holes 211 of the second threading plate 210, with the multiple bundles running parallel to each other between the first threading plates 210 on the same side. Fibers are divided into multiple bundles by the second through-holes 131 on the first threading plate 130. After passing through the multiple second through-holes 131 on the first threading plate 130, the fiber bundles are pressed down by a press roller for dipping in glue, and then pass through the corresponding second through-holes 131 on the second threading plate 130. The bulked yarn and the dipped fibers then enter the mold for pultrusion.

[0056] The dipping device provided in this embodiment sets a limiting structure 200 on the outer side of the first side wall 110 and the second side wall 120 of the dipping tank 100. The first yarn passing plate 210 in the limiting structure 200 is provided with a first through hole 211, which limits the bulked yarn, thereby avoiding the bulked yarn from being scraped and scattered due to friction with the dipping tank 100 when passing through both sides of the dipping tank 100. The setting of the yarn guide porcelain eye further reduces the friction of the bulked yarn; at the same time, it also avoids the occurrence of yarn entanglement; in addition, it also avoids the swinging of the bulked yarn due to air flow and adhesion to foreign objects, saving raw material costs and improving the success rate of preparing carbon glass fiber composite pultruded plates.

[0057] The contents described above can be implemented individually or in combination in various ways, and these variations are all within the scope of protection of this application.

[0058] It should be noted that, in the description of this application, the terms "upper", "lower", "front", "back", etc., indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0059] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0060] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0061] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0062] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0063] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A dipping device, characterized in that: The dipping device comprises: A glue dipping tank, used for dipping the fibers into glue; At least one group of limiting structures, each group of limiting structures includes two limiting structures, and the two limiting structures in the same group are relatively installed on the outside of the first side wall and the second side wall opposite to the dipping tank, and the limiting structures are used to limit the bulked yarn on the outside of the first side wall and the outside of the second side wall.

2. The dipping device according to claim 1, characterized in that: The limiting structure includes a first yarn threading plate and a first mounting plate, wherein the first yarn threading plate is perpendicular to the first side wall or the second side wall of the glue dipping tank; and the first mounting plate is used for mounting the limiting structure.

3. The dipping device according to claim 2, characterized in that: Two first mounting plates are provided, and the two first mounting plates are respectively arranged at the upper and lower ends of the first yarn threading plate.

4. The dipping device according to claim 2, characterized in that: The first yarn threading plate is provided with a plurality of first through holes spaced apart from top to bottom, and the first through holes are used for the bulked yarn to pass through.

5. The dipping device according to claim 4, characterized in that: The first through holes are all provided with yarn guide porcelain eyes.

6. The dipping device according to any one of claims 1 to 5, characterized in that: The limiting structure is installed on the outer surfaces of the first side wall and the second side wall of the glue dipping tank.

7. The dipping device according to any one of claims 1 to 5, characterized in that: The dipping device also includes a base and a bracket, the bracket includes two groups of support legs arranged at intervals along the conveying direction of the bulked yarn, each group of the support legs includes two support legs, the two support legs in the same group are respectively located on the outer sides of the first side wall and the second side wall opposite to the dipping tank, and the support legs are connected to the base and the notch of the dipping tank, and the two groups of limiting structures are respectively installed on the two groups of support legs.

8. The dipping device according to claim 7, characterized in that: The bracket further comprises two first cross beams, each of which is used to connect two supporting legs in the same group.

9. The dipping device according to claim 7, characterized in that: The base comprises a second crossbeam extending along the conveying direction of the bulked yarn, and a support plate is fixedly mounted on the second crossbeam, and the support plate is used for supporting a reflux pump.

10. The dipping device according to claim 1, characterized in that: The dipping device also includes two second yarn threading plates, which are spaced apart at the slot positions of the dipping tank, and the two second yarn threading plates are perpendicular to the conveying direction of the bulked yarn. A plurality of second through holes are provided on the second yarn threading plates, and the second through holes are used for the fibers to pass through so as to guide the fibers.

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