Pultrusion part deformation correction supporting component and deformation correction device

Abstract

The utility model relates to the technical field of pultrusion, in particular to a pultrusion part deformation correction supporting component and a deformation correction device, the supporting component comprises a supporting main body, a supporting piece connected to the supporting main body and a driving piece used for driving the supporting piece to move; the supporting body is a long-strip-shaped sectional material and is provided with a center hole and at least two guide grooves which are opened towards the outer wall. The outer wall of the supporting part is attached to the inner wall of the pultrusion part, the guiding part is connected with the supporting part, and the guiding part is matched with the guiding groove and can move relatively in the guiding part. The driving part is configured to drive the supporting part to be attached to the supporting body in the initial state and drive the supporting part to be attached to the inner wall of the pultrusion part after stretching into the pultrusion part. By means of the arrangement, the deformation correcting device can be inserted into the pultrusion part more conveniently, the attaching degree of the surface of the supporting part and the inner wall of the pultrusion part is higher, and then the deformation correcting precision and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pultrusion molding, in particular to a pultruded part deformation correction support component and a deformation correction device. Background Art

[0002] The pultrusion process refers to a process in which impregnated continuous fibers are passed through a molding die with a set cross-sectional shape, solidified in a mold cavity, heated and solidified after exiting the mold, and continuously pulled out under the action of a traction machine for pultrusion. However, when producing parts with cavities, the temperature of the pultruded parts just after exiting the mold is higher than the outside temperature, and the pultruded parts will be concave and deformed in the cavity area of ​​the parts due to cooling and shrinkage. How to reduce the deformation of pultruded profiles has become a problem that needs to be solved urgently.

[0003] In the prior art, for example, a Chinese invention patent application with application publication number CN116373352A disclosed a method and device for correcting deformation of a composite pultruded part on July 4, 2023, which inserts an airbag of a set length into the outlet end of the pultruded part, inflates the airbag after the airbag is inserted, and maintains the air pressure in the airbag within a set range to achieve internal support for the pultruded part that has just been ejected from the mold;

[0004] However, the inventors have found that the airbags are in a rolled, corrugated or straightened state in their initial state, and these states are difficult to operate when inserted into the interior of the pultruded part, and cannot guarantee accurate and efficient support. Utility Model Content

[0005] In view of at least one of the above technical problems, the utility model provides a pultruded component deformation correction support member and a deformation correction device, which adopt structural improvements to improve the efficiency and accuracy when extending into the pultruded component.

[0006] According to a first aspect of the utility model, there is provided a pultruded part deformation correction support member, comprising a support body, a support member connected to the support body, and a driving member for driving the support member to move;

[0007] The support body is a long strip profile, and the support body has a central hole and at least two guide grooves opened toward the outer wall; the support member includes a support portion whose outer wall is in contact with the inner wall of the pultruded member and a guide portion connected to the support portion, and the guide portion is adapted to the guide groove and can be relatively movably arranged in the guide portion;

[0008] The driving member is configured to drive the supporting member to fit with the supporting body in an initial state, and to drive the supporting member to fit with the inner wall of the pultruded member after extending into the interior of the pultruded member.

[0009] In some embodiments of the present invention, the driving member is a pneumatic structure, and the driving member allows gas to enter the guide groove from the central hole to drive the movement of the support member.

[0010] In some embodiments of the present invention, an air passage communicating with the guide groove is provided in the central hole, and a sealing member is fixed on the outer wall of the guide portion.

[0011] In some embodiments of the present invention, an air bag is provided at the bottom of the guide groove, one side of the air bag is connected to the guide portion, and the other side of the air bag has an air inlet pipe extending into the central hole.

[0012] In some embodiments of the present invention, the supporting body and the supporting member are both hollow structures.

[0013] In some embodiments of the present invention, the supporting body and the supporting member are both made of aluminum profiles.

[0014] In some embodiments of the present invention, the cross-section of the supporting body is square as a whole, there are four guiding grooves, and the outer surface of the supporting member is a plane or arc-shaped structure.

[0015] In some embodiments of the present invention, the top end of the support body further comprises a guide block, and the guide block comprises an inclined surface.

[0016] According to the second aspect of the utility model, there is provided a pultruded part deformation correction device, comprising a pultrusion die and a track arranged opposite to the pultrusion die, the track having a movable platform, an air pump being fixed on the movable platform, the air pump being connected to a pultruded part deformation correction support member as described in any one of the first aspects, the pultruded part deformation correction support member being arranged opposite to the outlet of the pultrusion die.

[0017] The beneficial effects of the utility model are as follows: the utility model connects a support member that can be moved away from or close to the surface of the support member to the support body. Before extending into the internal space of the pultruded part, the support member is tightly attached to the support body. After extending into the interior of the pultruded part, the support member is away from the support body and fits with the inner wall of the pultruded part. Compared with the airbag in the prior art, since the support body is a rigid component, it is easier to insert into the interior of the pultruded part, and the surface of the support member is more closely fitted with the inner wall of the pultruded part, thereby improving the accuracy and efficiency of deformation correction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the structure of the support component for correcting the deformation of the pultruded part in the embodiment of the utility model;

[0020] Figure 2 In the embodiment of the utility model Figure 1 A local enlarged view of point A in FIG.

[0021] Figure 3 This is a schematic diagram of the structure of the support member when it is contracted in the embodiment of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure when the support member is opened in the embodiment of the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the guide block supporting the end of the main body in the embodiment of the utility model;

[0024] Figure 6 It is a schematic structural diagram of a pultruded part deformation correction device in an embodiment of the utility model. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0028] like Figures 1 to 5 The pultruded part deformation correction support member shown in the figure comprises a support body 1, a support member 2 connected to the support body 1, and a driving member (not shown in the figure) for driving the support member 2 to move;

[0029] The support body 1 is a long strip of profile, and the support body 1 has a central hole 11 and at least two guide grooves 12 opened toward the outer wall; the support member 2 includes a support portion 21 whose outer wall is in contact with the inner wall of the pultruded part, and a guide portion 22 connected to the support portion 21, and the guide portion 22 is adapted to the guide groove 12 and can be relatively moved in the guide portion 22; wherein the driving member is configured to drive the support member 2 to be in contact with the support body 1 in the initial state, and drive the support member 2 to be in contact with the inner wall of the pultruded part after extending into the interior of the pultruded part. Specifically, Figure 3 As shown in FIG. 1 , in the initial state, the support member 2 is fitted with the outer wall of the support body 1, and its overall size is smaller than the internal space of the pultruded part, so that it is easy to enter the interior of the pultruded part. After entering the interior of the pultruded part, as shown in FIG. Figure 4 As shown in , the support member 2 moves outward so that the outer wall of the support member 2 fits with the inner wall of the pultruded part, thereby supporting the inner wall of the pultruded part and preventing it from sinking due to temperature changes.

[0030] In the above embodiment, by connecting the support member 2 on the support body 1 so as to be able to move away from or closer to the surface of the support body 1, the support member 2 is tightly attached to the support body 1 before extending into the internal space of the pultruded part, and after extending into the interior of the pultruded part, the support member 2 is away from the support body 1 and fits with the inner wall of the pultruded part. Compared with the airbag 31 in the prior art, since the support body 1 is a rigid component, it is easier to insert into the interior of the pultruded part, and the surface of the support member 2 is more closely fitted with the inner wall of the pultruded part, thereby improving the accuracy and efficiency of deformation correction.

[0031] On the basis of the above embodiment, the driving member is a pneumatic structure, and the driving member drives the gas from the center hole 11 into the guide groove 12 to drive the movement of the support member 2. Of course, it should be pointed out here that there are many ways to drive the support member 2 to move. In some embodiments of the utility model, air pressure can be used for driving. For example, the center hole 11 has an air channel 11a connected to the guide groove 12, and a sealing member 22a is fixed on the outer wall of the guide part 22. In this way, a sealed space is formed between the guide groove 12 and the guide part 22. When the air pressure enters the sealed space, the positive pressure will push the guide part 22 to move outward, and the negative pressure will adsorb the guide part 22 inward. At this time, the guide part 22 plays the role of a piston; in another embodiment of the utility model, in order to reduce the process requirements of the seal, the bottom of the guide groove 12 has an air bag 31, one side of the air bag 31 is connected to the guide part 22, and the other side has an air inlet pipe 32 extending into the center hole 11. By such arrangement, the guide portion 22 can be pushed or pulled only by inflating or deflating the airbag 31 , thereby achieving the outward or inward movement of the entire support member 2 .

[0032] In some embodiments of the present invention, in order to reduce the overall weight of the support member, the support body 1 and the support member 2 are both hollow structures. Further, in some embodiments of the present invention, the support body 1 and the support member 2 are both aluminum profiles. The aluminum profile can be supported by an extrusion molding process, and the setting of the hollow structure of the aluminum profile can further reduce the overall weight of the support member, while also ensuring the overall structural strength of the support member.

[0033] In some specific embodiments of the present invention, Figures 1 to 4 As shown in the figure, the cross section of the support body 1 is square as a whole, there are four guide grooves 12, and the outer surface of the support member 2 is a plane or an arc surface structure. When the pultruded part is a square structure, the outer surface of the support member 2 is a plane, and when the pultruded part is a circular structure, the surface of the support member 2 can be set to an arc structure.

[0034] like Figure 5 As shown in the figure, in order to further improve the convenience of entering the interior of the pultruded part, the top of the support body 1 is also provided with a guide block 4, and the guide block 4 has an inclined surface. It should be pointed out here that the end of the inclined surface covers the outer surface of the support member 2 to avoid interference with the support member 2 when entering the pultruded part. The guide block 4 can be fixed to the surface of the support body 1 in a detachable manner, such as by screwing, or by welding.

[0035] like Figure 6As shown in , in some embodiments of the utility model, a pultruded part deformation correction device is also provided, comprising a pultrusion die 100, a track 200 arranged opposite to the pultrusion die 100, a mobile platform 300 is provided on the track 200, an air pump 400 is fixed on the mobile platform 300, the air pump 400 is connected to the above-mentioned pultruded part deformation correction support member, and the pultruded part deformation correction support member is arranged opposite to the outlet of the pultrusion die 100. Through such an arrangement, the online support of the pultruded part can be realized, that is, when the pultruded part is ejected from the pultrusion die 100, the mobile platform 300 drives the air pump 400 and the support member to extend into the interior of the pultruded part, and then the air pump 400 works to support, and at the same time, the mobile platform 300 moves synchronously with the pultruded part, and after the support process is completed, the supported profile is cut, and then the mobile platform 300 is pulled away to perform the support operation of the next section of the pultruded part again. Of course, it should be pointed out here that the mobile platform 300 has various structural forms, for example, it can be driven by a motor screw structure or a gear rack, sprocket chain structure, etc., which will not be described in detail here.

[0036] Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the description are only for explaining the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A pultruded part deformation correction support member, characterized in that: It comprises a supporting body, a supporting member connected to the supporting body, and a driving member for driving the supporting member to move; The support body is a long strip profile, and the support body has a central hole and at least two guide grooves opened toward the outer wall; the support member includes a support portion whose outer wall is in contact with the inner wall of the pultruded member and a guide portion connected to the support portion, and the guide portion is adapted to the guide groove and can be relatively movably arranged in the guide portion; The driving member is configured to drive the supporting member to fit with the supporting body in an initial state, and to drive the supporting member to fit with the inner wall of the pultruded member after extending into the interior of the pultruded member.

2. The pultruded part deformation correction support member according to claim 1, characterized in that: The driving member is a pneumatic structure, and the driving member allows gas to enter the guide groove from the central hole to drive the movement of the supporting member.

3. The pultruded part deformation correction support member according to claim 2, characterized in that: An air passage communicating with the guide groove is provided in the central hole, and a sealing member is fixed on the outer wall of the guide portion.

4. The pultruded part deformation correction support member according to claim 2, characterized in that: An air bag is provided at the bottom of the guide groove, one side of the air bag is connected to the guide part, and the other side of the air bag is provided with an air inlet pipe extending into the central hole.

5. The pultruded part deformation correction support member according to claim 1, characterized in that: The supporting body and the supporting member are both hollow structures.

6. The pultruded part deformation correction support member according to claim 5, characterized in that: The supporting body and the supporting member are both made of aluminum profiles.

7. The pultruded part deformation correction support member according to claim 1, characterized in that: The cross section of the support body is square as a whole, there are four guide grooves, and the outer surface of the support member is a plane or arc surface structure.

8. The pultruded part deformation correction support member according to claim 1, characterized in that: The top end of the supporting body is also provided with a guide block, and the guide block is provided with an inclined surface.

9. A pultruded part deformation correction device, characterized in that: It comprises a pultrusion die and a track arranged opposite to the pultrusion die, the track is provided with a movable platform, an air pump is fixed on the movable platform, a pultruded part deformation correction support member as claimed in any one of claims 1 to 8 is connected to the air pump, and the pultruded part deformation correction support member is arranged opposite to the outlet of the pultrusion die.

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