Glue injection box

Abstract

The utility model belongs to the technical field of pultrusion profiles, and discloses a glue injection box which comprises a box body, a yarn threading piece and a forming piece. The yarn threading part is arranged at one end of the box body in the first direction, a plurality of yarn threading holes penetrating in the first direction are formed in the yarn threading part and are arranged at intervals, the forming part is arranged at the other end of the box body in the first direction, the yarn threading part, the forming part and the box body jointly define a glue injection channel, and the yarn threading part is further provided with a glue overflow hole and an overflow groove. The glue injection channel is communicated with the outside through the yarn penetrating hole and the glue overflow hole, the glue overflow hole, the overflow groove and the yarn penetrating hole are arranged from top to bottom, and the glue overflow hole is communicated with the yarn penetrating hole through the overflow groove. By means of the arrangement, the glue injection box can recycle redundant glue, and waste of raw materials and the phenomenon of solidification and glue hanging are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of pultruded profiles, in particular to a glue injection box. Background Art

[0002] The composite pultrusion process is a process for producing composite material profiles by impregnating continuous fibers or their fabrics with resin through an injection box under the traction of a traction device, and then heating the forming mold to cure the resin.

[0003] Since the temperature of the injection box channel is greatly affected by the environment, the existing polyurethane pultrusion profile injection box is prone to unstable product quality. Moreover, since the existing injection box cannot accurately control the amount of glue in the box, the operator can only judge by the amount of glue overflow. The injection box has a serious phenomenon of solidified glue and is difficult to clean. In addition, the polyurethane material cannot be recycled, resulting in serious waste and high production costs. Utility Model Content

[0004] The purpose of the utility model is to provide a glue injection box, which can recycle excess colloid and reduce the waste of raw materials and the phenomenon of solidified glue.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A glue injection box, comprising:

[0007] Box body;

[0008] A yarn threading member is provided at one end of the box body along the first direction, and the yarn threading member is provided with a plurality of yarn threading holes extending along the first direction, and the plurality of yarn threading holes are arranged at intervals;

[0009] A molding part is arranged at the other end of the box body along the first direction, and the yarn threading part, the molding part and the box body are jointly arranged to form a glue injection channel. The yarn threading part is also provided with an overflow hole and an overflow groove. The glue injection channel is connected to the outside through the yarn threading hole and the overflow hole. The overflow hole, the overflow groove and the yarn threading hole are arranged from top to bottom, and the overflow hole is connected to the yarn threading hole through the overflow groove.

[0010] Optionally, the box body is provided with an open end, the glue injection channel is connected to the outside through the open end, and the glue injection box further includes a cover body, which is provided to cover the open end.

[0011] Optionally, a glue injection hole is provided on the cover body, and the glue injection channel is connected to the outside through the glue injection hole.

[0012] Optionally, a clamping portion is provided on the yarn threading member, and the cover body is clamped to the clamping portion.

[0013] Optionally, the glue overflow hole is provided through-through along the thickness direction of the yarn threading member.

[0014] Optionally, the overflow groove is arranged on the end surface of the yarn threading member facing away from the forming member.

[0015] Optionally, the overflow trough includes a first trough body, multiple second trough bodies and multiple third trough bodies, one end of the first trough body is connected to the glue overflow hole, and the other end is connected to the multiple second trough bodies, and the multiple third trough bodies are arranged at intervals along the extension direction of the second trough body, one end of the third trough body is connected to the second trough body, and the other end is connected to the yarn threading hole.

[0016] Optionally, one end of each of the second trough bodies is connected to the other end of the first trough body.

[0017] Optionally, a circulation channel is provided on the box body, one end of the circulation channel is configured as a liquid inlet hole, and the other end of the circulation channel is configured as a liquid outlet hole.

[0018] Optionally, the molding member is provided with a plurality of molding channels extending through the molding member along the first direction.

[0019] Beneficial effects of the utility model:

[0020] The utility model provides a glue injection box, which includes a box body, a yarn threading piece and a molding piece. The yarn threading piece is arranged at one end of the box body along the first direction, and the molding piece is arranged at the other end of the box body along the first direction, so as to ensure that the fiber or its fabric is smoothly pulled along the first direction through the glue injection box for resin infiltration. The yarn threading piece is provided with a plurality of yarn threading holes arranged through along the first direction, and the plurality of yarn threading holes are arranged at intervals. The yarn threading piece, the molding piece and the box body are jointly surrounded to form a glue injection channel, so that the fiber can pass through the yarn threading holes and enter the glue injection channel for infiltration. The yarn threading piece is also provided with an overflow hole and an overflow groove. The glue injection channel is connected to the outside through the yarn threading hole and the overflow hole. The overflow hole is connected to the yarn threading hole through the overflow groove. When the amount of glue is too much, the excess glue will enter the overflow groove through the overflow hole, and then flow back to the yarn threading hole, and follow the fiber threaded in the yarn threading hole to enter the glue injection channel again. This not only saves raw materials, but also reduces the phenomenon of solidified glue hanging, and reduces the difficulty of cleaning the glue injection box. Furthermore, the overflow hole, overflow trough, and yarn threading hole are arranged from top to bottom, and the excess colloid flowing out of the overflow hole can flow back under the action of its own weight, thereby improving the efficiency of colloid recovery. Through the above arrangement, the glue injection box of the present application can recycle excess colloid, reducing the waste of raw materials and the phenomenon of solidified glue hanging. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a first schematic diagram of the glue injection box provided by an embodiment of the present utility model;

[0022] Figure 2 This is a second schematic diagram of the glue injection box provided by an embodiment of the present utility model;

[0023] Figure 3 It is an exploded schematic diagram of the glue injection box provided in an embodiment of the utility model.

[0024] In the picture:

[0025] 1. Box body; 11. Glue injection channel; 12. Open end; 13. Liquid inlet hole; 14. Liquid outlet hole; 2. Yarn threading piece; 21. Yarn threading hole; 22. Glue overflow hole; 23. Overflow trough; 231. First trough body; 232. Second trough body; 233. Third trough body; 24. Clamping part; 3. Molding piece; 31. Molding channel; 4. Cover body; 41. Glue injection hole. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0027] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" 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 components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0028] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0029] In the description of this embodiment, terms such as "upper," "lower," and "right" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0030] like Figure 1-Figure 3 As shown, this embodiment provides a glue injection box, which includes a box body 1, a yarn threading member 2 and a forming member 3. The yarn threading member 2 is arranged at one end of the box body 1 along a first direction, and is provided with a plurality of yarn threading holes 21 extending along the first direction, and the plurality of yarn threading holes 21 are arranged at intervals. The forming member 3 is arranged at the other end of the box body 1 along the first direction. The yarn threading member 2, the forming member 3 and the box body 1 are jointly arranged to form a glue injection channel 11. The yarn threading member 2 is also provided with a glue overflow hole 22 and an overflow groove 23. The glue injection channel 11 is connected to the outside through the yarn threading hole 21 and the glue overflow hole 22. The glue overflow hole 22, the overflow groove 23 and the yarn threading hole 21 are arranged from top to bottom, and the glue overflow hole 22 is connected to the yarn threading hole 21 through the overflow groove 23.

[0031] In this embodiment, the threading member 2 is disposed at one end of the box body 1 along the first direction, and the forming member 3 is disposed at the other end of the box body 1 along the first direction, to ensure that the fiber or fabric is smoothly pulled along the first direction through the glue injection box for resin infiltration. The threading member 2 is provided with a plurality of threading holes 21 extending therethrough along the first direction. The plurality of threading holes 21 are spaced apart. The threading member 2, the forming member 3, and the box body 1 collectively form a glue injection channel 11, allowing the fiber to pass through the threading holes 21 and enter the glue injection channel 11 for infiltration. The yarn threading member 2 is also provided with an overflow hole 22 and an overflow groove 23. The glue injection channel 11 is connected to the outside through the yarn threading hole 21 and the overflow hole 22. The overflow hole 22 is connected to the yarn threading hole 21 through the overflow groove 23. When the amount of glue is too much, the excess glue will enter the overflow groove 23 through the overflow hole 22, then flow back to the yarn threading hole 21 and follow the fibers passed through the yarn threading hole 21 to re-enter the glue injection channel 11. This not only saves raw materials, but also reduces the phenomenon of solidified glue hanging, reducing the difficulty of cleaning the glue injection box. Moreover, the overflow hole 22, the overflow groove 23 and the yarn threading hole 21 are arranged from top to bottom. The excess glue flowing out of the overflow hole 22 can flow back under the action of its own weight, thereby improving the efficiency of glue recovery. Through the above arrangement, the glue injection box of this embodiment can recycle excess glue, reducing the waste of raw materials and the phenomenon of solidified glue hanging.

[0032] It should be noted that the aperture of the yarn threading hole 21 on the yarn threading piece 2 is designed according to the yarn threading amount, so that the colloid cannot flow back through the yarn threading hole 21 during glue injection. When there is too much colloid in the glue injection box, the excess colloid will flow through the overflow hole 22 and the overflow groove 23 to the end panel of the yarn threading piece 2 facing away from the molded part 3, and flow along the end panel to the yarn threading hole 21, and enter the glue injection box again with the fiber, thereby improving the utilization rate of the colloid.

[0033] The specific structure of the glue injection box is described below:

[0034] Specifically, if Figure 3 As shown, the box body 1 is provided with an open end 12, and the glue injection channel 11 is connected to the outside through the open end 12. The glue injection box also includes a cover body 4, which is covered at the open end 12, thereby providing a tight closed structure for the open end 12 of the box body 1, effectively preventing leakage of the glue during the glue injection process.

[0035] More specifically, in this embodiment, the box body 1 is a U-shaped member and is provided with a slot extending through it in a first direction. The yarn threading member 2 and the forming member 3 are respectively sealed at both ends of the slot, thereby forming a glue injection channel 11. This allows the fibers passing through the yarn threading member 2 to enter the glue injection channel 11 for infiltration by a colloid such as resin, and then be pulled out of the forming member 3 by a pulling device. In other embodiments, the box body 1 is a cylindrical body, and the yarn threading member 2 and the forming member 3 are respectively provided at both ends of the cylindrical body. The specific structure of the box body 1 is not limited in detail herein, as long as it can achieve the above-mentioned functions.

[0036] Specifically, if Figure 3 As shown, a glue injection hole 41 is opened on the cover body 4, and the glue injection channel 11 is connected to the outside through the glue injection hole 41, so that the operator can easily complete the glue injection process without complicated operations.

[0037] Specifically, if Figure 2 and Figure 3 As shown, the threading member 2 is provided with a clamping portion 24, and the cover body 4 is clamped to the clamping portion 24. Among them, the clamping portion 24 of this embodiment is a clamping groove, so that the cover body 4 can be clamped in the clamping groove and connected by bolts. It not only helps to guide the correct installation of the cover body 4, but also improves the connection stability between the above components. In other embodiments, the clamping portion 24 is a protrusion, and the cover body 4 is provided with a groove that is mutually clamped with the protrusion. It is understandable that there is no need to make too many restrictions on the specific structure of the clamping portion 24, as long as it can achieve the above-mentioned functional effects.

[0038] More specifically, a clamping portion 24 is disposed at the top of the yarn threading member 2, and a glue overflow hole 22 is provided in the clamping portion 24 and extends along the first direction to form a trough structure. This allows the colloid to flow more smoothly in the first direction, thereby reducing glue accumulation and overflow. By disposing the cover 4 at the top of the box body 1 and the yarn threading member 2, the trough structure can be sealed to form the glue overflow hole 22, thereby guiding the flow direction of the colloid and preventing excess colloid from flowing out of one side of the trough.

[0039] Specifically, the glue overflow hole 22 is set through along the thickness direction of the yarn threading piece 2, so that excess glue can flow into the glue overflow hole 22 from the side of the yarn threading piece 2 close to the molding piece 3, and then flow out to the other side of the yarn threading piece 2 through the glue overflow hole 22, ensuring that the glue can flow out smoothly, making it easier for operators to judge the amount of glue in the glue injection box.

[0040] Specifically, the overflow groove 23 is provided on the end surface of the threading member 2 away from the forming member 3 , so as to effectively guide the colloid to flow along the end surface of the threading member 2 away from the forming member 3 after the colloid flows out of the glue injection box.

[0041] Specifically, if Figure 2 and Figure 3 As shown, the overflow trough 23 includes a first trough 231, multiple second troughs 232, and multiple third troughs 233. One end of the first trough 231 is connected to the glue overflow hole 22, and the other end is connected to the multiple second troughs 232. The first trough 231 receives the glue flowing out of the glue overflow hole 22 and directs it into the second troughs 232. The multiple second troughs 232 facilitate the diversion of the flowing glue. The multiple third troughs 233 are spaced apart along the extension direction of the second trough 232. One end of the third trough 233 is connected to the second trough 232, and the other end is connected to the yarn threading hole 21. This ensures that the glue flows evenly into the yarn threading hole 21, allowing it to be recycled and impregnated with the fibers. The multi-stage design of the overflow trough 23 effectively prevents the glue from accumulating or overflowing in a specific area, ensuring efficient use of the glue, avoiding the phenomenon of glue solidification and hanging, and facilitating cleaning of the glue injection box.

[0042] More specifically, one end of each of the second troughs 232 is connected to the other end of the first trough 231 , so that the colloid can be efficiently distributed into the second troughs 232 , thereby preventing the glue from accumulating and clogging.

[0043] Specifically, the box body 1 is provided with a circulation channel, one end of which is configured as a liquid inlet hole 13 and the other end is configured as a liquid outlet hole 14. External circulating water (such as provided by a water pump or a liquid supply pipe system) is introduced into the circulation channel through the liquid inlet hole 13, so that the external circulating water continuously flows through the circulation channel, thereby removing heat from the box body 1 or transferring heat to the box body 1, thereby continuously intervening in the temperature of the glue injection box, maintaining a relatively stable temperature inside it, and reducing the impact of temperature on glue injection. Among them, the circulation channel of this embodiment can be configured as an S-shaped or U-shaped extension, and the specific structure of the circulation channel is not further limited herein.

[0044] Specifically, if Figure 3 As shown, the molded part 3 is provided with a plurality of molding channels 31 which are arranged through the first direction. Under the traction of the traction equipment, the continuous fibers or their fabrics will be impregnated with resin through the injection box and solidified and formed through the molding channels 31, thereby ensuring the product quality of the pultruded profile.

[0045] It should be noted that the yarn threading member 2 and the forming member 3 of this embodiment can both adopt a plate-shaped or block-shaped structure, and no further restrictions are placed on the specific structures of the above components.

[0046] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. Glue injection box, characterized in that, include: Box body (1); A yarn threading member (2) is provided at one end of the box body (1) along a first direction, and the yarn threading member (2) is provided with a plurality of yarn threading holes (21) extending through the first direction, wherein the plurality of yarn threading holes (21) are arranged at intervals; A forming member (3) is arranged at the other end of the box body (1) along the first direction, the yarn threading member (2), the forming member (3) and the box body (1) are jointly arranged to form a glue injection channel (11), the yarn threading member (2) is further provided with a glue overflow hole (22) and an overflow groove (23), the glue injection channel (11) is connected to the outside through the yarn threading hole (21) and the glue overflow hole (22), the glue overflow hole (22), the overflow groove (23) and the yarn threading hole (21) are arranged from top to bottom, and the glue overflow hole (22) is connected to the yarn threading hole (21) through the overflow groove (23).

2. The glue injection box according to claim 1, characterized in that: The box body (1) is provided with an open end (12), and the glue injection channel (11) is connected to the outside through the open end (12). The glue injection box further comprises a cover body (4), and the cover body (4) is covered on the open end (12).

3. The glue injection box according to claim 2, characterized in that: A glue injection hole (41) is provided on the cover body (4), and the glue injection channel (11) is connected to the outside through the glue injection hole (41).

4. The glue injection box according to claim 2, characterized in that: The threading member (2) is provided with a clamping portion (24), and the cover body (4) is clamped to the clamping portion (24).

5. The glue injection box according to claim 1, characterized in that: The glue overflow hole (22) is provided through the thickness direction of the yarn threading member (2).

6. The glue injection box according to claim 1, characterized in that: The overflow groove (23) is arranged on the end surface of the yarn threading member (2) facing away from the forming member (3).

7. The glue injection box according to claim 1, characterized in that: The overflow trough (23) comprises a first trough body (231), a plurality of second trough bodies (232) and a plurality of third trough bodies (233); one end of the first trough body (231) is connected to the glue overflow hole (22), and the other end is connected to the plurality of second trough bodies (232); the plurality of third trough bodies (233) are arranged at intervals along the extension direction of the second trough body (232); one end of the third trough body (233) is connected to the second trough body (232), and the other end is connected to the yarn threading hole (21).

8. The glue injection box according to claim 7, characterized in that: One end of each of the plurality of second trough bodies (232) is connected to the other end of the first trough body (231).

9. The glue injection box according to claim 1, characterized in that: The box body (1) is provided with a circulation channel, one end of the circulation channel is configured as a liquid inlet hole (13), and the other end is configured as a liquid outlet hole (14).

10. The glue injection box according to any one of claims 1 to 9, characterized in that: The forming member (3) is provided with a plurality of forming channels (31) extending through the first direction.

Images