CN220784092U

CN220784092U - Cylindrical preform cutting device

Info

Publication number: CN220784092U
Application number: CN202322645005.7U
Authority: CN
Inventors: 张国强; 乔晓东; 王伟亮; 周骏超; 徐雷
Original assignee: Zhejiang Xinghui New Material Technology Co ltd
Current assignee: Zhejiang Xinghui New Material Technology Co ltd
Priority date: 2023-09-27
Filing date: 2023-09-27
Publication date: 2024-04-16
Anticipated expiration: 2033-09-27

Abstract

The utility model provides a cylindrical preform cutting device, which relates to the technical field of cutting equipment, and a driving device drives a support frame to translate relative to a frame so as to be close to or far away from a preform to be cut; the power motor drives the driving wheel to rotate, the driving wheel drives the diamond wire to rotate, and the diamond wire is guided to rotate through the tensioning wheel and the wire guide wheel, so that the diamond wire rotates; cutting is achieved by the fact that the straight portions formed by the two guide wheels contact the preform; the adoption of the diamond wire cutting can avoid the problems of large heating value and uneven cut-out section generated by cutting the large-thickness preform by the traditional blade, so that the section of the preform is smoother and the cutting precision is higher.

Description

Cylindrical preform cutting device

Technical Field

The utility model relates to the technical field of cutting equipment, in particular to a cylindrical preform cutting device.

Background

The carbon fiber heat preservation cylinder is mainly used in the field of photovoltaic thermal fields, and is a layer of prefabricated body formed by needling a layer of carbon cloth wrapped on a cylinder wooden mold. After the needling molding, the burrs of the preform are cut, and the long cylinder is cut in sections to obtain the required use size.

After the preform is formed, the carbon fiber is wrapped on the wooden mold, so that the mold is difficult to be demolded due to the longer length of the cylindrical mold, or the preform is easy to deform after being demolded. Therefore, the long cylindrical carbon fiber preform is preferably cut directly on a machine after the needling molding is finished, so that the problem that the large cylindrical carbon fiber preform is difficult to demould or deformed after demould is reduced.

The original cutting scheme is as follows: the cutting blade is arranged on a dovetail groove sliding table, the cutting blade can move on the dovetail groove sliding table, the dovetail groove sliding table is provided with a rotary hand wheel, the cutting blade is made to do feeding movement by the rotary hand wheel, and the dovetail groove sliding table and the blade clamping device are arranged on the frame.

From the past empirical data of carbon fiber cutting, when the preform thickness exceeds 50mm, cutting with a blade is not advantageous and problems such as: because a large amount of heat is generated between the blade and the preform in the cutting process, the heat cannot be timely dissipated, and the loss of the blade is accelerated. In addition, after the blade exceeds a certain length, the blade is easy to bend, so that the cut section is uneven, the use requirement is not met, and the requirement can be met through secondary processing. The processing cost brought by the method is relatively high, and the efficiency is low.

For those skilled in the art, how to avoid the problems of large heat productivity and uneven cut-out section generated by cutting the large-thickness preform by the blade is a technical problem to be solved at present.

Disclosure of Invention

The utility model provides a cylindrical preform cutting device, which adopts a diamond wire to cut, and avoids the problems of large heating value and uneven cut section generated by cutting a large-thickness preform by a traditional blade, and the specific scheme is as follows:

the cylindrical preform cutting device comprises a frame, a support frame and a driving device, wherein the support frame is arranged on the frame and is driven by the driving device to translate relative to the frame so as to be close to or far away from a preform to be cut;

the supporting frame is provided with a driving wheel, a tensioning wheel and at least two wire guide wheels; the power motor drives the driving wheel to rotate, the driving wheel drives the diamond wire to rotate, the diamond wire is guided to rotate through the tensioning wheel and the wire guide wheel, and the diamond wire is used for cutting a prefabricated body to be cut.

Optionally, the tensioning wheel is rotatably installed on an adjusting screw, and the adjusting screw is movably installed on the supporting frame.

Optionally, the cutting sections formed by the diamond wire between the two wire guide wheels are vertically distributed;

the driving device is used for transversely driving the supporting frame.

Optionally, at least one wire guide wheel is adjustably mounted to the support frame, and the length of a cut segment formed between two wire guide wheels is adjusted by the wire guide wheel.

Optionally, the driving device is a screw rod installed on the frame, and the driving device is in threaded matching with a screw rod nut installed on the support frame.

Optionally, universal wheels are mounted at the bottom of the frame.

Optionally, a guide rail is arranged at the top of the frame, and the support frame is provided with a sliding seat matched with the guide rail.

Optionally, the support frame is provided with a guard plate for protecting the power motor from impact.

Optionally, the preform cutting device further comprises a preform supporting device, wherein the preform supporting device is provided with a supporting roller for supporting the preform to be cut, and the supporting roller is used for driving the preform to rotate.

Optionally, the preform supporting device can drive the preform to approach the supporting frame.

The utility model provides a cylindrical preform cutting device, wherein a driving device drives a support frame to translate relative to a frame so as to be close to or far away from a preform to be cut; the power motor drives the driving wheel to rotate, the driving wheel drives the diamond wire to rotate, and the diamond wire is guided to rotate through the tensioning wheel and the wire guide wheel, so that the diamond wire rotates; cutting is achieved by the fact that the straight portions formed by the two guide wheels contact the preform; the adoption of the diamond wire cutting can avoid the problems of large heating value and uneven cut-out section generated by cutting the large-thickness preform by the traditional blade, so that the section of the preform is smoother and the cutting precision is higher.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view showing the overall structure of a cylindrical preform cutting device according to an embodiment of the present utility model;

FIG. 2 is a schematic front view of an embodiment of a support frame;

FIG. 3 is a schematic top view of an embodiment of a support frame;

FIG. 4 is a schematic front view of an embodiment of a frame;

fig. 5 is a schematic top view of an embodiment of a frame.

The drawings include:

the device comprises a frame 1, universal wheels 11, guide rails 12, a supporting frame 2, a driving wheel 21, a tensioning wheel 22, a wire guide wheel 23, a power motor 24, a diamond wire 25, an adjusting screw 26, a sliding seat 27, a guard plate 28, a screw nut 29, a driving device 3, a prefabricated part supporting device 4 and a supporting roller 41.

Detailed Description

The utility model aims at providing a cylindrical preform cutting device which adopts a diamond wire to cut, so that the problems of large heating value and uneven cut section generated by cutting a large-thickness preform by a traditional blade are avoided.

In order to make the technical solution of the present utility model better understood by those skilled in the art, the following detailed description will be given with reference to the accompanying drawings and the specific embodiments.

Referring to fig. 1, the utility model provides a cylindrical preform cutting device, which comprises a frame 1, a support frame 2 and a driving device 3, wherein the frame 1 is placed on the ground to play a supporting role. The support frame 2 and the driving device 3 are both arranged on the frame 1. The support frame 2 is slidably mounted on the frame 1, and the support frame 2 can translate relative to the frame 1 and can approach or depart from a prefabricated body to be cut.

The support frame 2 is arranged on the frame 1, the support frame 2 is driven to translate relative to the frame 1 by the driving device 3, and the driving device 3 is a power structure for the movement of the support frame 2 relative to the frame 1, so that the support frame 2 is close to or far away from a preform to be cut, and the preform is cut when the support frame 2 is close to the preform.

Referring to fig. 2 and 3, a driving wheel 21, a tensioning wheel 22 and at least two wire guiding wheels 23 are arranged on the supporting frame 2, and the driving wheel 21, the tensioning wheel 22 and the wire guiding wheels 23 are respectively rotatably arranged on the supporting frame 2 and can be opposite to the supporting frame 2; the diamond wire 25 is wound around the outer circumferences of the driving pulley 21, the tension pulley 22 and the wire guide pulley 23. In the embodiment illustrated in the drawings of the present application, the diamond wire 25 is a closed annular structure, and the diamond wire 25 is capable of forming a circulating motion; the diamond wire 25 may be provided in a manner of unreeling one end and reeling one end.

The driving wheel 21 is connected to the power motor 24, the driving wheel 21 is directly driven by the power motor 24 to rotate, the driving wheel 21 is driven by the power motor 24 to rotate, and the driving wheel 21 drives the diamond wire 25 to rotate, so that the diamond wire 25 advances along the length direction. The wire guide wheel 23 is used for changing the traveling direction of the diamond wire 25 by guiding rotation of the tension wheel 22 and the wire guide wheel 23, and the tension wheel 22 is used for keeping the diamond wire 25 in a tensioned state. The center of the diamond wire 25 is made of materials such as a steel wire rope, the diamond wire 25 is arranged on the outer surface of the diamond wire, the diamond wire 25 is used for cutting a preform to be cut, when the diamond wire 25 rotates to advance and contacts the surface of the preform, the diamond wire 25 and the surface of the preform form grinding, the contact position of the diamond wire 25 is removed, and the preform is cut to form a section.

Compared with the traditional cutting blade cutting mode, the colored diamond wire is cut, when the diamond wire 25 is tensioned and straightened, the offset does not occur in the axial direction of the preform, the problem of uneven cross section can be avoided, the cross section of the preform is smoother, and the cutting precision is higher. The circulation length of the diamond wire 25 is greater than that of the cutting blade, a longer space is reserved for heat dissipation after the diamond wire 25 is in friction contact with the preform, the diameter of the diamond wire 25 is smaller than that of the cutting blade, and when the diamond wire 25 is embedded into the preform, the cut part is not in contact with the diamond wire 25, so that the heat productivity can be effectively reduced.

On the basis of the scheme, the tensioning wheel 22 is rotatably arranged on the adjusting screw 26, the adjusting screw 26 is movably arranged on the supporting frame 2, the tensioning wheel 22 is arranged on the mounting seat on the adjusting screw 26, and the compression degree of the tensioning wheel 22 on the diamond wire 25 can be adjusted through the adjusting screw 26, so that the tensioning force of the diamond wire 25 is changed. The adjusting screw 26 can be directly connected with the supporting frame 2 in a threaded manner; or can be movably arranged on the supporting frame 2, and the periphery of the supporting frame is sleeved with a spring to realize the application of pressure to the diamond wires 25.

As shown in fig. 1 and 2, the cutting sections formed by the diamond wires 25 between the two wire guide wheels 23 are vertically distributed; the driving device 3 is used for driving the support frame 2 transversely, and when cutting, the driving device 3 drives the support frame 2 to be close to the prefabricated body transversely, so that the vertical cutting section between the two wire guide wheels 23 contacts and grinds the prefabricated body.

In a specific embodiment, at least one wire guide wheel 23 is adjustably mounted on the support frame 2, and the length of the cutting segment formed between the two wire guide wheels 23 is adjusted by the wire guide wheels 23, so that the length of the cutting segment formed between the two wire guide wheels 23 can be determined according to different sizes of the prefabricated body to adapt to the prefabricated body with different sizes.

Referring to fig. 5, the driving device 3 is a screw rod mounted on the frame 1, the driving device 3 is in threaded fit with a screw rod nut mounted on the support frame 2, and when the driving device 3 is rotated, the support frame 2 can perform translational motion. The driving device 3 can be rotated by a manual runner or by a motor.

Referring to fig. 1 and 4, a universal wheel 11 is mounted at the bottom of the frame 1 to be movable. The universal wheel 11 is provided with a braking structure in a matched mode, and locking can be achieved. The universal wheel 11 can be freely moved and can be applied to different preform supporting devices 4, and when cutting is required, the device can be moved beside the preform supporting device 4. The prefabricated member supporting device 4 is provided with a positioning device and an adjusting device, so that the relative positions of the frame 1 and the prefabricated member supporting device 4 are accurate.

With reference to fig. 4 and 5, the top of the frame 1 is provided with a guide rail 12, the support frame 2 is provided with a sliding seat 27 matched with the guide rail 12, the guide rail 12 is parallel to the direction of the driving device 3, and the guide rail 12 forms guiding guide for the support frame 2, so that the translation of the support frame 2 is realized.

With reference to fig. 1 and 2, the support frame 2 is provided with a guard plate 28 for protecting the power motor 24 from impact, and when the support frame 2 is too close to the preform, the guard plate 28 contacts the preform, so that the power motor 24 is prevented from being damaged due to the impact of the preform.

On the basis of any one of the above technical solutions and the combination of the above technical solutions, the cylindrical preform cutting device provided by the present utility model further includes a preform supporting device 4, where the preform supporting device 4 is provided with a supporting roller 41 for supporting the preform to be cut, and the supporting roller 41 is used for driving the preform to rotate. In connection with fig. 1, where a denotes a mold, B denotes a preform, the preform is located at the outer periphery of the mold. The rotation is achieved by arranging a rotation shaft at the center of the mold a and the support roller 41 directly contacts the rotation shaft, thereby indirectly supporting the preform B and achieving rotation. When cutting the preform, the direction of rotation of the diamond wire 25 is opposite to the direction of rotation of the preform.

In a specific embodiment, the preform supporting device 4 can drive the preform to approach the supporting frame 2, and the preform supporting device 4 and the driving device 3 can both enable the preform and the diamond wire to approach each other, so that more possibility is provided for adjusting the distance, and the operation during cutting is convenient. In general, only the support frame 2 is required to drive the diamond wire 25 to translate.

When cutting is needed, the carbon fiber preform on the wooden mold is kept in a self-rotation state, and then the power motor 24 is started to enable the silicon carbide wire 25 to be in a high-speed running state. Then, the whole support frame 2 is driven to slowly advance to approach the preform by the rotary driving device 3, the high-speed running silicon carbide wire 25 is contacted with the carbon fiber preform, and cutting is started.

The manufacturing cost of the existing silicon carbide wire is reduced greatly compared with that of the early silicon carbide wire due to the improvement of the manufacturing process of the silicon carbide wire. The blade has limitation when cutting large thickness dimension, but the cutting of the diamond yarn does not have limitation in this aspect, and the section cut by the sand line is smooth and beautiful.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The cylindrical preform cutting device is characterized by comprising a frame (1), a support frame (2) and a driving device (3), wherein the support frame (2) is arranged on the frame (1), and the driving device (3) drives the support frame (2) to translate relative to the frame (1) so as to be close to or far away from a preform to be cut;

a driving wheel (21), a tensioning wheel (22) and at least two wire guide wheels (23) are arranged on the supporting frame (2); the power motor (24) drives the driving wheel (21) to rotate, the driving wheel (21) drives the diamond wire (25) to rotate, the diamond wire (25) is used for cutting a preform to be cut through the tensioning wheel (22) and the wire guide wheel (23) to guide the rotation.

2. The cylindrical preform cutting device according to claim 1, wherein the tensioning wheel (22) is rotatably mounted to an adjusting screw (26), the adjusting screw (26) being movably mounted to the support frame (2).

3. The cylindrical preform cutting device according to claim 1, wherein the cut segments formed by the diamond wires (25) between the two wire guide wheels (23) are vertically distributed;

the driving device (3) is used for transversely driving the supporting frame (2).

4. The cylindrical preform cutting device according to claim 1, wherein at least one wire guide wheel (23) is adjustably mounted to the support frame (2), the length of a cut segment formed between two wire guide wheels (23) being adjusted by the wire guide wheel (23).

5. The cylindrical preform cutting device according to claim 1, wherein the driving means (3) is a screw mounted to the frame (1), the driving means (3) being screw-matched with a screw nut (29) mounted on the support frame (2).

6. A cylindrical preform cutting device according to claim 1, characterized in that the bottom of the frame (1) is fitted with universal wheels (11).

7. The cylindrical preform cutting device according to claim 1, characterized in that the top of the frame (1) is provided with a guide rail (12), and the support frame (2) is provided with a slide (27) cooperating with the guide rail (12).

8. The cylindrical preform cutting device according to claim 1, wherein the support frame (2) is provided with a guard plate (28) for protecting the power motor (24) from impact.

9. The cylindrical preform cutting device according to any one of claims 1 to 8, further comprising preform supporting means (4), the preform supporting means (4) being provided with a supporting roller (41) for supporting a preform to be cut, the supporting roller (41) being for driving the preform to rotate.

10. The cylindrical preform cutting device according to claim 9, characterized in that the preform supporting device (4) is capable of driving the preform towards the support frame (2).