Wire cutting device

Abstract

The utility model provides a wire cutting device which is used for cutting off fibers and arranged in front of a wire collecting device, the wire cutting device comprises a guide wheel, the peripheral surface of the guide wheel is provided with a guide groove and mounting areas, the guide groove is sunken inwards in the radial direction, the mounting areas are communicated with the guide groove, and the mounting areas are arranged on the two sides of the guide groove in the axial direction of the guide wheel; in the radial direction of the guide wheel, the size of the mounting area is larger than or equal to that of the guide groove; and the cutting assembly is used for cutting fibers and is arranged in the mounting area. According to the filament cutting device, the guide groove in the peripheral face of the guide wheel can provide guiding and limiting effects for the fiber filaments, so that the to-be-cut fiber filaments are guided into the cutting assembly in the installation area, and after the fibers on the filament winding device are wound to meet the certain specification requirement, the cutting assembly cuts off the fibers. The yarn cutting device can improve the yarn cutting efficiency when fiber winding is finished, and then the quality of fiber products is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of carbon fiber precursor production, and in particular to a wire cutting device. Background Art

[0002] At present, in the process of winding and forming high-performance carbon fiber raw yarn, batch winders are usually used to operate simultaneously due to the large production capacity. In this process, when the winding machine reaches a certain specification requirement, it is usually necessary to manually cut the wire with a blade. Due to the large number of winders, it is time-consuming and laborious for operators to manually cut the wire back and forth at irregular intervals, and untimely cutting of the wire will also affect product output and quality. Utility Model Content

[0003] In order to solve the above technical problems, the present disclosure provides a wire cutting device, which is used to cut fibers and is arranged before a wire collecting device. The wire cutting device includes:

[0004] A guide wheel, wherein the outer circumferential surface of the guide wheel is provided with a guide groove and a mounting area which are recessed radially inwards, the mounting area is communicated with the guide groove, the mounting area is provided on both sides of the guide groove along the axial direction of the guide wheel, and the size of the mounting area is greater than or equal to the size of the guide groove along the radial direction of the guide wheel;

[0005] A cutting assembly is used for cutting the fibers, and the cutting assembly is arranged in the installation area.

[0006] In some embodiments of the present disclosure, the cutting assembly includes two cutting tools, and two installation areas are provided. Along the axial direction of the guide wheel, the two installation areas are respectively arranged on both sides of the guide groove, and the two cutting tools are respectively arranged in the two installation areas.

[0007] In some embodiments of the present disclosure, the cutting tool is rotatably connected to the bottom surface of the mounting area; or,

[0008] The cutting tool is slidably connected to the side of the mounting area.

[0009] In some embodiments of the present disclosure, one of the cutting tools is provided with a first blade, and another of the cutting tools is provided with two second blades, and when the two cutting tools are cutting, the first blade is located between the two second blades.

[0010] In some embodiments of the present disclosure, the wire cutting device further comprises:

[0011] A fixed shaft, rotatably connected to the guide wheel;

[0012] A cylinder is fixed on the fixed shaft, and the cylinder is used to drive the cutting tool to move.

[0013] In some embodiments of the present disclosure, a spring is provided between the two cutting knives; and / or,

[0014] The two cutting tools are both magnets, and the same magnetic poles of the two cutting tools are facing each other.

[0015] In some embodiments of the present disclosure, the wire cutting device further comprises:

[0016] A sliding ring, which is sleeved on the fixed shaft and slidably connected to the fixed shaft; the telescopic end of the cylinder is connected to the sliding ring;

[0017] A push rod, the lower end of which is connected to the sliding ring, the upper end of which is connected to an end of the cutting tool away from the other cutting tool, and the extension direction of the push rod is perpendicular to the extension direction of the fixed shaft.

[0018] In some embodiments of the present disclosure, the wire cutting device further comprises:

[0019] A detection unit, the detection unit is electrically connected to the cylinder, and the detection unit is used to detect the weight or radial size of the wire collecting device;

[0020] The control unit is electrically connected to the detection unit and the cylinder. When the detection unit detects that the weight of the wire collecting device exceeds a first preset threshold or the radial dimension exceeds a second preset threshold, the control unit sends a signal to the cylinder, and the cylinder drives the two cutting tools to move closer to each other.

[0021] In some embodiments of the present disclosure, the detection unit includes a weighing sensor or an encoder.

[0022] In some embodiments of the present disclosure, the guide groove is V-shaped, rectangular or semicircular.

[0023] The present disclosure has at least the following effects: the wire cutting device provided by the present disclosure has a guide groove on the outer peripheral surface of the guide wheel that can provide guidance and position limiting functions for the fiber wire, so as to facilitate the fiber wire to be cut to be introduced into the cutting assembly in the installation area, and when the fiber winding on the wire collection device reaches a certain specification requirement, the cutting assembly cuts the fiber. The wire cutting device can improve the wire cutting efficiency at the end of fiber winding, thereby improving the quality of fiber products. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is a schematic diagram of a wire cutting device according to an exemplary embodiment of the present disclosure.

[0026] In the figure:

[0027] 10-guide wheel; 20-cutting assembly; 21-cutting tool; 22-sliding ring; 23-installation area; 24-spring; 30-fixed shaft; 40-cylinder; 50-push rod; 60-bearing; 70-guide groove; 100-wire cutting device. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present disclosure will be described clearly and completely below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present disclosure.

[0029] Reference to an "embodiment" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present disclosure. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0030] At present, in the process of winding and forming high-performance carbon fiber raw yarn, batch winders are usually used to operate simultaneously due to the large production capacity. In this process, when the winding machine reaches a certain specification requirement, it is usually necessary to manually cut the wire with a blade. Due to the large number of winders, it is time-consuming and laborious for operators to manually cut the wire back and forth at irregular intervals, and untimely cutting of the wire will also affect product output and quality.

[0031] In order to solve the problems existing in the related art, the exemplary embodiment of the present disclosure provides a wire cutting device, which is used to cut the fiber and is arranged before the wire collecting device. The wire cutting device includes: a guide wheel and a cutting assembly. The outer peripheral surface of the guide wheel is provided with a guide groove and an installation area which are recessed radially inward. The installation area is connected with the guide groove. Along the axial direction of the guide wheel, the installation area is arranged on both sides of the guide groove. Along the radial direction of the guide wheel, the size of the installation area is greater than or equal to the size of the guide groove. The cutting assembly is used to cut the fiber, and the cutting assembly is arranged in the installation area. In the wire cutting device, the guide groove on the outer peripheral surface of the guide wheel can provide guidance and limiting functions for the fiber filaments, so as to facilitate the introduction of the fiber filaments to be cut into the cutting assembly of the installation area. When the fiber winding on the wire collecting device reaches certain specification requirements, the cutting assembly cuts the fiber. The wire cutting device can improve the wire cutting efficiency at the end of fiber winding, thereby improving the quality of fiber products.

[0032] It can be understood that in the wire cutting device provided by the exemplary embodiment of the present disclosure, the surface of the guide wheel is arc-shaped, so that the wire cutting device can also play a role in redirecting the fiber. For example, the fiber can be wound 180° along the outer circumference of the guide wheel. Therefore, the wire cutting device can adapt to various layouts of fiber preparation devices and cut the fiber at the end of fiber collection.

[0033] It can be understood that when the guide groove is deeper, the fibers passing through the guide groove will be protected by the side walls of the guide groove, resulting in the inability to cut the fibers. In the exemplary embodiment provided in the present disclosure, the size of the installation area along the radial direction of the guide wheel is set to be greater than or equal to the size of the guide groove, which can ensure that the cutting assembly installed in the installation area can cut the passing fibers.

[0034] In the exemplary embodiments provided in the present disclosure, Figure 1 As shown, the cutting assembly 20 includes two cutting knives 21, and two mounting areas 23 are provided. Along the axial direction of the guide wheel 10, the two mounting areas 23 are respectively provided on both sides of the guide groove 70, and the two cutting knives 21 are respectively provided in the two mounting areas 23. A cutting knives 21 is provided in each of the two mounting areas 23. When the fiber winding on the wire collection device reaches a certain specification requirement, the two cutting knives 21 can cut the fiber, thereby avoiding the low efficiency problem of manual wire cutting.

[0035] In the exemplary embodiments provided in the present disclosure, Figure 1 As shown, the cutting tool 21 is rotatably connected to the bottom surface of the installation area 23. When the fiber winding on the wire collection device reaches a certain specification requirement, the cutting tools 21 arranged on the installation area 23 rotate relative to the bottom surface of the installation area 23, and the two cutting tools 21 approach each other to cut the fiber obliquely, so that the fiber can be cut quickly and easily, avoiding the low efficiency of manual cutting.

[0036] In the exemplary embodiments provided in the present disclosure, Figure 1 As shown, the cutting tool 21 is slidably connected to the side of the installation area 23. When the fiber winding on the wire collection device reaches a certain specification requirement, the cutting tools 21 arranged on the installation area 23 slide relative to the side of the installation area 23, and the two cutting tools 21 approach each other to cut the fiber, thereby avoiding the low efficiency of manual cutting.

[0037] In the exemplary embodiments provided in the present disclosure, Figure 1 As shown, one of the cutting tools 21 is provided with a first blade, and the other cutting tool 21 is provided with two second blades. When the two cutting tools 21 are cutting, the first blade is located between the two second blades. When the fiber winding on the wire collection device reaches a certain specification requirement, the two cutting tools 21 arranged on the installation area 23 are close to each other, so that the first blade is located between the two second blades, forming a guillotine structure to cut the fiber, which can avoid the fiber being not completely cut off, and can also avoid the problem of the blades on the two cutting tools being directly contacted and hit, causing the blades to be damaged.

[0038] In the exemplary embodiment provided in the present disclosure, the first blade and the second blade may be connected to the cutting tool by bolts, which is simple and convenient and can be disassembled to facilitate regular replacement of the blades.

[0039] In the exemplary embodiments provided in the present disclosure, Figure 1 As shown, the wire cutting device also includes a fixed shaft 30 and a cylinder 40. The fixed shaft 30 is rotatably connected to the guide wheel 10, for example, the fixed shaft 30 and the guide wheel 10 are rotatably connected via a bearing 60. The tension of the fiber during the winding process is relatively large. When the cutting assembly 20 cuts the fiber, the guide wheel 10 rotates slightly relative to the fixed shaft 30, which can reduce stress and protect the wire cutting device 100. The cylinder 40 is fixed on the fixed shaft 30. The cylinder 40 is used to drive the cutting tool 21 to move. When the fiber winding on the wire collecting device reaches certain specifications, the cylinder 40 drives the two cutting tools 21 to move closer to each other to cut the fiber. It should be noted that the power source of the above-mentioned cylinder 40 is compressed air, which is clean and environmentally friendly, does not generate pollution, and is environmentally friendly.

[0040] In one example, if Figure 1As shown, a spring 24 is arranged between the two cutting tools 21. When the fiber winding on the wire collecting device reaches a certain specification requirement, the cylinder 40 drives the two cutting tools 21 to move closer to each other and compress the spring 24 to cut the fiber. After the fiber is cut, the cylinder 40 contracts, and at the same time, the spring 24 between the two cutting tools 21 pops the two cutting tools 21 open and resets them.

[0041] In another example (not shown in the drawings), both cutting tools are magnets, and the same magnetic poles of the two cutting tools are facing each other. When the fiber winding on the wire collection device reaches a certain specification, the cylinder drives the two cutting tools to move closer to each other to cut the fiber. After the fiber is cut, the cylinder contracts. At the same time, because the two cutting tools are magnets with the same magnetic poles facing each other, the repulsive force generated by the two cutting tools causes the two cutting tools to move away and reset.

[0042] In another example (not shown in the attached figure), a spring is provided between the two cutting knives, and both cutting knives are magnets, and the same magnetic poles of the two cutting knives are facing each other. When the fiber winding on the wire collection device reaches a certain specification, the cylinder drives the two cutting knives to move closer to each other and compress the spring to cut the fiber. After cutting the fiber, the cylinder contracts and drives the two cutting knives to move and reset. At the same time, the spring between the two cutting knives bounces the two cutting knives open and resets. In addition, since the two cutting knives are magnets with the same magnetic poles facing each other, the repulsive force generated by the two cutting tools causes the two cutting knives to move away from each other and reset.

[0043] In the exemplary embodiments provided in the present disclosure, Figure 1 As shown, the wire cutting device 100 further includes a sliding ring 22 and a push rod 50. The sliding ring 22 is sleeved on the fixed shaft and slidably connected to the fixed shaft, the telescopic end of the cylinder 40 is connected to the sliding ring 22, the lower end of the push rod 50 is connected to the sliding ring 22, the upper end of the push rod 50 is connected to the end of the cutting tool 21 that is away from the other cutting tool 21, and the extension direction of the push rod 50 is perpendicular to the extension direction of the fixed shaft 30. The telescopic end of the cylinder 40 drives the sliding ring 22 to slide on the fixed shaft 30, thereby moving the push rod 50 fixed on the sliding ring 22, and the push rod 50 further drives the cutting tool 21 to move to cut the fiber, that is, the wire cutting device 100 can automatically cut the wire, avoiding the low efficiency of manual wire cutting, and can also avoid the problem of affecting product output and quality caused by untimely manual wire cutting.

[0044] In the exemplary embodiment provided by the present disclosure, the wire cutting device also includes a detection unit and a control unit. The detection unit is electrically connected to the cylinder, and the detection unit is used to detect the weight or radial dimension of the wire collecting device. The control unit is electrically connected to the detection unit and the cylinder. When the detection unit detects that the weight of the wire collecting device exceeds the first preset threshold value or the radial dimension exceeds the second preset threshold value, the control unit sends a signal to the cylinder, such as to the solenoid valve on the cylinder, and the solenoid valve controls the cylinder to drive the two cutting tools to approach each other. When the detection unit detects that the weight of the wire collecting device exceeds the first preset threshold value or the radial dimension exceeds the second preset threshold value, that is, after the detection unit detects that the fiber winding on the wire collecting device reaches a certain specification requirement, the control unit sends a signal to the cylinder, such as to the solenoid valve on the cylinder, and the solenoid valve controls the cylinder to drive the two cutting tools to approach each other to cut the fiber, so as to realize automatic wire cutting in the fiber winding process, avoid the low efficiency of manual wire cutting, and avoid the problem of affecting product output and quality caused by untimely manual wire cutting.

[0045] It is understandable that when the detection unit detects that the weight of the wire collecting device exceeds the first preset threshold or the radial dimension exceeds the second preset threshold, it can also issue an alarm to remind the operator to prepare for changing the shaft of the wire collecting device in advance to improve work efficiency.

[0046] In one example, the detection unit includes a weighing sensor or an encoder. The weighing sensor can detect the weight of the wire collecting device. When the detection unit detects that the weight of the wire collecting device exceeds a first preset threshold, the control unit sends a signal to the cylinder, and the cylinder drives the two cutting knives to approach each other to cut the fiber.

[0047] In another example, the encoder can detect the radial dimension of the wire collecting device. When the detection unit detects that the radial dimension of the wire collecting device exceeds a second preset threshold, the control unit sends a signal to the cylinder, and the cylinder drives the two cutting tools to approach each other to cut the fibers, thereby realizing automatic wire cutting during the fiber winding process.

[0048] In the exemplary embodiments provided in the present disclosure, Figure 1 As shown, the guide groove 70 is V-shaped, rectangular or semicircular. The guide groove 70 on the outer peripheral surface of the guide wheel 10 can provide guidance and limiting functions for the fiber filaments, so as to facilitate the fiber filaments to be cut to be introduced into the cutting assembly 20 of the installation area 23, so that the fibers can be cut after the fiber winding on the wire collection device reaches certain specifications. Among them, when the guide groove is V-shaped or semicircular, the guide groove can center the fiber filaments when guiding the wire and limiting the fiber filaments, thereby improving the winding effect of the fiber filaments on the wire collection device.

[0049] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A wire cutting device, characterized in that: The wire cutting device is used to cut the fibers and is arranged before the wire collecting device. The wire cutting device comprises: A guide wheel, wherein the outer circumferential surface of the guide wheel is provided with a guide groove and a mounting area which are recessed radially inwards, the mounting area is communicated with the guide groove, the mounting area is provided on both sides of the guide groove along the axial direction of the guide wheel, and the size of the mounting area is greater than or equal to the size of the guide groove along the radial direction of the guide wheel; A cutting assembly is used for cutting the fibers, and the cutting assembly is arranged in the installation area.

2. The wire cutting device according to claim 1, characterized in that: The cutting assembly includes two cutting tools. Two installation areas are provided. Along the axial direction of the guide wheel, the two installation areas are respectively arranged on both sides of the guide groove. The two cutting tools are respectively arranged in the two installation areas.

3. The wire cutting device according to claim 2, characterized in that: The cutting tool is rotatably connected to the bottom surface of the mounting area; or, The cutting tool is slidably connected to the side of the mounting area.

4. The wire cutting device according to claim 2 or 3, characterized in that: One of the cutting tools is provided with a first blade, and the other cutting tool is provided with two second blades. When the two cutting tools are cutting, the first blade is located between the two second blades.

5. The wire cutting device according to claim 4, characterized in that: The wire cutting device also includes: A fixed shaft, rotatably connected to the guide wheel; A cylinder is fixed on the fixed shaft, and the cylinder is used to drive the cutting tool to move.

6. The wire cutting device according to claim 5, characterized in that: A spring is arranged between the two cutting knives; and / or, The two cutting tools are both magnets, and the same magnetic poles of the two cutting tools are facing each other.

7. The wire cutting device according to claim 5, characterized in that: The wire cutting device also includes: A sliding ring, which is sleeved on the fixed shaft and slidably connected to the fixed shaft; the telescopic end of the cylinder is connected to the sliding ring; A push rod, the lower end of which is connected to the sliding ring, the upper end of which is connected to an end of the cutting tool away from the other cutting tool, and the extension direction of the push rod is perpendicular to the extension direction of the fixed shaft.

8. The wire cutting device according to claim 7, characterized in that: The wire cutting device also includes: A detection unit, the detection unit is electrically connected to the cylinder, and the detection unit is used to detect the weight or radial size of the wire collecting device; The control unit is electrically connected to the detection unit and the cylinder. When the detection unit detects that the weight of the wire collecting device exceeds a first preset threshold or the radial dimension exceeds a second preset threshold, the control unit sends a signal to the cylinder, and the cylinder drives the two cutting tools to move closer to each other.

9. The wire cutting device according to claim 8, characterized in that: The detection unit includes a weighing sensor or an encoder.

10. The wire cutting device according to claim 1, characterized in that: The guide groove is V-shaped, rectangular or semicircular.

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