Yarn pulling traction device for pultrusion equipment

Abstract

The utility model relates to the technical field of composite material pultrusion equipment, and particularly discloses a yarn pulling traction device for pultrusion equipment, which is positioned between an outlet of a forming die and a traction machine, is connected with the traction machine through a cloth belt and is connected with the outlet of the forming die through yarns; the yarn pulling traction device comprises at least two first pipe columns, a yarn pulling traction device and a yarn pulling traction device, the lower ends of the first pipe columns are fixedly provided with lower limiting plates, the upper ends of the first pipe columns are fixedly provided with upper limiting plates, and the first pipe columns are located at the left ends and the right ends of the lower limiting plates and the upper limiting plates; the second tubular column is located between the first tubular columns and is lower than the first tubular columns; the first tubular column and the second tubular column are used for connecting yarns and cloth tapes, and the yarns and the cloth tapes are connected to different tubular columns; first flanges are arranged in the front-back direction of the lower limiting plate, and second flanges are arranged in the front-back direction of the upper limiting plate. Therefore, the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of composite material pultrusion molding equipment, in particular to a yarn drawing and traction device used for pultrusion equipment. Background Art

[0002] FRP pultrusion process is widely used in the fields of construction, shipbuilding, transportation, chemical industry, etc. It is mainly used to make FRP pultrusion molds, which can be further used to produce FRP products. In the production process of FRP pultrusion process, since the yarn output from the outlet of the forming mold is long, the distance between the traction machine and the outlet of the forming mold is about 5 meters. In the preparation stage of traction, it is necessary to ensure that the yarn moves along the predetermined path and direction through the cloth belt to achieve continuous supply of yarn.

[0003] In the prior art, a cloth tape and yarn are directly tied together and pulled out of a mold. Due to continuous yarn pulling, the yarn and the cloth tape will be pulled tighter and tighter. If the yarn and the cloth tape are too tight, it will be very difficult and time-consuming to disassemble the cloth tape and the yarn when rotating traction is performed. The yarn that has just been dipped in glue may stay in the high-temperature mold for too long and solidify, causing mold blockage. When mold blockage occurs, production needs to be stopped, and then a long period of mold disassembly is required to solve the problem of mold blockage, resulting in very poor production efficiency.

[0004] Secondly, since the distance between the traction machine and the outlet of the forming mold is long, if the cloth belt is not used, the amount of yarn used is large and the production cost is high. Utility Model Content

[0005] In order to improve production efficiency, an embodiment of the utility model provides a yarn drawing and traction device for pultrusion equipment.

[0006] The embodiment of the utility model adopts the following technical scheme: it is placed on a workbench, located between the outlet of the forming mold and the traction machine, connected to the traction machine through a cloth belt, and connected to the outlet of the forming mold through a yarn; the yarn pulling traction device comprises: at least two first tube columns, a lower limit plate is fixedly installed at the lower end, an upper limit plate is fixedly installed at the upper end, and at least two first tube columns are respectively located at the left and right ends of the lower limit plate and the upper limit plate; the second tube column is located between the first tube columns, and the height is less than the first tube column; the first tube column and the second tube column are used to connect the yarn and the cloth belt, and the yarn and the cloth belt are connected to different tube columns; the lower limit plate is respectively provided with a first flange in the front and rear directions, and the upper limit plate is respectively provided with a second flange in the front and rear directions;

[0007] The first flange is used to limit the lower end of the second pipe column, and the second flange is used to limit the upper end of the second pipe column, so that the second pipe column is slidably connected with the upper limit plate and the lower limit plate.

[0008] Beneficial effects: Compared with the prior art, which involves tying the tape and the yarn together and pulling them out of the mold, and then connecting them to a traction machine, the yarn and tape that are stretched together need to be disassembled for a long time in the later stage, which is prone to mold blocking. The present invention uses a yarn pulling and traction device to connect the yarn and the tape to different tubes, respectively, to separate the yarn and the tape, thereby avoiding the situation where the yarn and the tape are too tightly knotted and cannot be untied. Since the yarn and the tape are separated, even if the yarn and the tape are stretched tight, the second tube can be moved and disassembled to conveniently solve the problem in a shorter time, shortening the disassembly operation time and thus improving production efficiency. In addition, mold blocking caused by the yarn and the tape being too tightly knotted and unable to be untied is avoided, and the use of the yarn pulling and traction device can ensure normal and stable production.

[0009] At the same time, the second pipe column is slidably connected with the upper limit plate and the lower limit plate respectively, which can facilitate the yarn to pass through, fold and press on the pipe column. After the traction force is applied, the yarn is pressed tighter and tighter, and the pipe column will not slide freely during traction, thereby realizing normal traction production. When the yarn traction connection is cancelled, the staff only needs to disassemble or move the second pipe column to quickly disassemble the yarn, thereby improving production efficiency.

[0010] Finally, by moving the second tube column, the amount of yarn accumulated on the second tube column can be increased. A larger amount of yarn accumulated can produce a larger glass fiber reinforced plastic product. Therefore, the yarn pulling and traction device can be used to produce both small and large glass fiber reinforced plastic products, that is, it is suitable for the production of different types of products. In addition, the yarn pulling and traction device has a simple structure and is easy to manufacture, and has a low manufacturing cost.

[0011] Preferably, the radius of the second tube column is 47 mm-50 mm.

[0012] Beneficial effects: The length of a normal adult's palm is generally 150-200mm. In the actual production process, more yarns will be wound on the second column. The radius of the second column is designed to be 47mm-50mm to conform to human mechanics, facilitate the operation of the second column by the staff, and improve the efficiency of yarn connection and disassembly; and it is also necessary to ensure that the radius of the second column can be larger to increase more yarns to be wound on the second column, so as to meet the production of larger-sized products and achieve the purpose of being suitable for the production of different types of products.

[0013] Preferably, the height of the second pipe column is 300 mm-400 mm.

[0014] Beneficial effect: When the radius of the second column cannot be increased, by increasing the height of the second column, the amount of yarn accumulated on the second column can be increased, meeting the production needs of preparing large products; at the same time, when the height of the second column exceeds 400mm, the amount of yarn accumulated on the second column is large and the weight is large, making it difficult for staff to operate the second column.

[0015] Preferably, the height of the second pipe column is smaller than the length of the lower limiting plate.

[0016] Beneficial effect: It is convenient to install the second pipe column in the space formed by the first pipe column, the upper limit plate and the lower limit plate.

[0017] Preferably, the length of the lower limit plate is 500-600 mm.

[0018] Beneficial effect: The longer the lower limit plate is, the longer the distance between the second tube column and the first tube column is, and more yarn can be wound on the yarn drawing and traction device.

[0019] Preferably, the first tube column and the second tube column are both hollow cylindrical structures.

[0020] Beneficial effects: the weight of the yarn drawing and traction device is reduced, and the second pipe column is a hollow cylindrical structure with light weight, which is convenient for workers to disassemble, install or push the second pipe column.

[0021] Preferably, the first pipe column and the second pipe column are both stainless steel pipe columns.

[0022] Beneficial effects: The stainless steel pipe column not only has good corrosion resistance, but also has high tensile and extrusion strength and hardness.

[0023] Preferably, it comprises two second tube columns and two first tube columns; wherein the two second tube columns and one first tube column are connected to the outlet of the forming die through yarn, and the other first tube column is connected to the traction machine through a cloth belt.

[0024] Beneficial effect: Since the first pipe column is fixedly mounted on the limit plate, when the traction machine is in operation, the traction machine drives the yarn pulling device to move on the workbench through the cloth belt to pull the yarn. At the same time, the yarn is connected to other pipe columns, which can increase the number of yarns on the pipe columns to improve production needs.

[0025] Preferably, the distance between the yarn drawing traction device and the outlet of the forming mold is at least 2 meters, and the distance between the yarn drawing traction device and the traction machine is at most 3 meters.

[0026] Beneficial effects: ensuring that the traction machine can stably and better pull the yarn drawing traction device through the cloth belt to complete the product production with high quality, and at the same time, it can also make it unnecessary to use yarn between the yarn drawing traction device and the traction machine, thereby reducing the use of yarn and improving production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of the structure of the first embodiment of the yarn pulling device of the utility model (a);

[0028] Figure 2 This is a front view of the first embodiment of the yarn pulling device of the utility model;

[0029] Figure 3 It is a left view of the first embodiment of the yarn pulling device of the utility model;

[0030] Figure 4 This is a structural schematic diagram (b) of the first embodiment of the yarn drawing and traction device of the utility model. DETAILED DESCRIPTION

[0031] In the description of the present utility model, it should be noted that the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or the directions or positional relationships in which the utility model product is usually placed when in use, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. The dimensions of the structural schematics in the accompanying drawings are not necessarily proportional.

[0032] The reference numerals in the drawings of the specification include:

[0033] Upper limit plate 11, first flange 12, lower limit plate 21, second flange 22, second pipe column 3, first pipe column 4

[0034] Embodiment 1

[0035] This embodiment provides a yarn drawing and pulling device for a pultrusion device, such as Figure 1 As shown, the traction machine wraps the yarn drawing traction device with a cloth belt to achieve a sliding connection effect, that is, when the traction machine is operating, the traction cloth belt moves to achieve the effect of pulling the yarn drawing traction device. The outlet of the forming mold is wrapped around the yarn drawing traction device by yarn. As the yarn drawing traction device gradually approaches the traction machine, the outlet of the forming mold is wrapped around the yarn drawing traction device by yarn to achieve a sliding connection effect.

[0036] like Figure 2 As shown, the yarn drawing and traction device includes two first tube columns 4, two second tube columns 3, a lower limit plate 21 and an upper limit plate 11.

[0037] Specifically, in this embodiment, the upper limit plate 11 and the lower limit plate 21 have the same size and structure, and there are two first pipe columns 4 and second pipe columns 3. Figure 1 As shown, the first pipe column 4 is located at the left and right ends respectively, and the upper end is welded to the upper limit plate 11, and the lower end is welded to the lower limit plate 21. The length of the lower limit plate 21 is a=500mm. The height of the second pipe column 3 is 3a / 5mm. The height of the first pipe column 4 is slightly larger than the second pipe column 3, so that the second pipe column 3 can move freely when placed in the space formed by the limit plate and the first pipe column 4. The radius of the second pipe column 3 is 47mm in this embodiment. Figure 3 As shown, the radius of the first pipe column 4 is b=54 mm.

[0038] The two second pipe columns 3 are both located between the two first pipe columns 4 and are respectively slidably connected to the lower limit plate 21 and the upper limit plate 11. It should be noted that the staff can push the second pipe column 3 to slide arbitrarily in the space formed by the first pipe column 4, the upper limit plate 11 and the lower limit plate 21.

[0039] like Figure 4 As shown, the front and rear ends of the lower limit plate 21 are provided with first flanges 12, and the first pipe column 4 and the second pipe column 3 are located between the front and rear first flanges 12. The front and rear ends of the upper limit plate 11 are provided with second flanges 22, and the first pipe column 4 and the second pipe column 3 are located between the front and rear second flanges 22. In this embodiment, the lengths of the first flange 12 and the second flange 22 are equal, and are also equal to the lengths of the upper and lower limit plates 21. Through the limitation of the first flange 12 and the second flange 22, the second pipe column 3 can be protected from being limited when installed in the space to prevent the second pipe column 3 from falling. At the same time, there is a small gap between the second pipe column 3 and the first flange 12 and the second flange 22, that is, the diameter of the second pipe column 3 is slightly smaller than the distance between the two first flanges 12 and the distance between the two second flanges 22, which can meet the requirement that the second pipe column 3 can move freely when placed in the space formed by the limit plate and the first pipe column 4. The lower limiting plate 21 provided with the first flange 12 and the upper limiting plate 11 provided with the second flange 22 are symmetrically arranged, and their openings are opposite to each other.

[0040] The specific installation process of this embodiment is as follows:

[0041] The two first pipe columns 4 are respectively welded to the two ends of the upper and lower limit plates 21. Since the height of the second pipe column 3 is less than the length of the limit plate, the second pipe column 3 can be placed in the space formed by the first flange 12, the second flange 22, the first pipe column 4, and the upper and lower limit plates. At the same time, the diameter of the second pipe column 3 is slightly smaller than the width of the limit plate, and the height of the second pipe column 3 is slightly smaller than the height of the first pipe column 4. Under the limiting effect of the first flange 12 and the second flange 22, the second pipe column 3 will not only not tilt and slip, but also can slide in the space.

[0042] The specific use process of this embodiment is as follows:

[0043] Before the traction machine is turned on, the yarn drawing traction device is placed on the workbench. At this time, the yarn drawing traction device is 2 meters away from the outlet of the forming mold and 3 meters away from the traction machine. The yarn is pulled out from the outlet of the forming mold and continuously wound on two first tube columns 4; the cloth tape is wound on another first tube column 4 and connected to the traction machine. The first tube column 4 wound with the cloth tape is close to the traction machine, and the first tube column 4 wound with the yarn is close to the outlet of the forming mold. In this way, the cloth tape and the yarn can be separated. Compared with the prior art, in which the cloth tape and the yarn are knotted and difficult to disassemble, this embodiment improves work efficiency.

[0044] After the traction machine is turned on, as the traction machine pulls the cloth tape, the yarn drawing traction device gradually approaches the traction machine. When the yarn drawing traction device at least reaches the position of the traction machine, the yarn drawing traction device can be disassembled from the yarn and the cloth tape respectively, and then moved out of the working area.

[0045] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] It should be understood that the term "and / or" used in this article is only a description of the same field of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0047] It should be noted that, regarding other parts not mentioned, the parts include specific devices and implementation methods, please refer to the aforementioned method embodiment part, and no further details will be given here.

[0048] Although the subject matter has been described in language specific to structural features and / or methodological logical actions, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or actions described above. On the contrary, the specific features and actions described above are merely example forms of implementing the claims.

[0049] The above is only an embodiment of the utility model. The common sense such as the known specific structure and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field of the utility model before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for the technicians in this field, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to explain the content of the claims.

Claims

1. A yarn drawing and traction device for pultrusion equipment, characterized in that: Placed on a workbench, located between the outlet of the forming mold and the traction machine, connected to the traction machine through a cloth belt, and connected to the outlet of the forming mold through a yarn; The yarn pulling device includes: At least two first pipe columns, with a lower limit plate fixedly installed at the lower end and an upper limit plate fixedly installed at the upper end, and the at least two first pipe columns are respectively located at the left and right ends of the lower limit plate and the upper limit plate; A second pipe column is located between the first pipe columns and has a height smaller than the first pipe column; The first tube column and the second tube column are used to connect the yarn and the cloth tape, and the yarn and the cloth tape are connected to different tube columns; The lower limit plate is provided with a first flange in the front and rear directions, and the upper limit plate is provided with a second flange in the front and rear directions; The first flange is used to limit the lower end of the second pipe column, and the second flange is used to limit the upper end of the second pipe column, so that the second pipe column is slidably connected with the upper limit plate and the lower limit plate.

2. The yarn drawing device according to claim 1, characterized in that: The radius of the second pipe column is 47mm-50mm.

3. The yarn drawing and traction device according to claim 2, characterized in that: The height of the second pipe column is 300mm-400mm.

4. The yarn drawing and traction device according to claim 2, characterized in that: The height of the second pipe column is smaller than the length of the lower limiting plate.

5. The yarn drawing and traction device according to claim 1 or 4, characterized in that: The length of the lower limit plate is 500-600mm.

6. The yarn drawing and traction device according to claim 1, characterized in that: The first tubular column and the second tubular column are both hollow cylindrical structures.

7. The yarn drawing and traction device according to claim 1, characterized in that: The first pipe column and the second pipe column are both stainless steel pipe columns.

8. The yarn drawing and traction device according to claim 1, characterized in that: It comprises two second tube columns and two first tube columns; the two second tube columns and one first tube column are connected to the outlet of the forming mold through yarns, and the other first tube column is connected to the traction machine through a cloth belt.

9. The yarn drawing and traction device according to claim 1, characterized in that: The distance between the yarn drawing traction device and the outlet of the forming mold is at least 2 meters, and the distance between the yarn drawing traction device and the traction machine is at most 3 meters.

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