A basalt fiber chopped yarn and chopped yarn equipment

Abstract

The invention discloses a basalt fiber chopped yarn and a chopped device thereof, comprising a machine base and a cutter; the machine base is provided with a rotating roller for pulling the fiber head; a plurality of guide tooth groups are evenly arranged on the circumference of the rotating roller, and the machine base is provided with a pressing piece matched with the guide tooth group for pressing the fiber head; driving cylinders connected with the pressing pieces are symmetrically arranged on both sides of the machine base; the driving cylinders are swingably arranged around the axis of the rotating roller; the rotating roller comprises a rotating shaft, a clamping part is arranged on the rotating shaft, and a clamping block matched with the clamping part is arranged on the pressing piece; the invention provides a basalt fiber chopped yarn and a chopped device thereof, by arranging a rotating roller matched with the cutter below the cutter, and arranging a clamping mechanism for pulling the head on the rotating roller, so that the head can be pulled synchronously for conveying when conveying the fiber, thereby improving the flatness of the fiber during conveying, and keeping the length of the fiber after chopping within a reasonable error range.

Description

Technical Field

[0001] The invention relates to the technical field of basalt fiber and production equipment thereof, in particular to basalt fiber chopped yarn and chopped yarn equipment thereof. Background Art

[0002] Basalt fiber is a high-performance inorganic fiber made from natural basalt ore through melting and drawing processes. This fiber has a variety of excellent physical and chemical properties, making it widely used in many fields.

[0003] Basalt fiber chopped yarn is a fiber yarn segment formed by continuously chopping basalt fibers. According to different uses, basalt fibers can be cut into chopped yarns of different lengths by a chopper. Chopped yarns have a wide range of applications. The length of basalt fiber chopped yarns for construction is usually between 10-30mm. Different types of concrete have different requirements for the chopped length of the fiber.

[0004] When existing short-cut equipment cuts long fibers, the fibers are gradually transferred through the transmission device behind the cutter, that is, the cutting length = the conveying length. Because there is no active displacement mechanism at the fiber end below the cutter, the resistance at the front end of the fiber is large when the transmission device transfers the fiber, which leads to the following problems:

[0005] During the progressive conveying process, the fibers at the front end will be concentratedly squeezed, which will cause some fiber bundles to tilt. As a result, the lengths of fiber bundles with different tilt angles after cutting will be greater than the standard size, which will further affect the quality of subsequent concrete. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a basalt fiber chopped yarn and a chopped yarn device.

[0007] In order to solve the above technical problems, the present invention solves the problems through the following technical solutions: A chopped basalt fiber yarn chopped equipment comprises a machine base and a cutter which is lifted and lowered on the machine base.

[0008] In the above scheme, preferably, the machine base is provided with a rotating roller which cooperates with the cutter and can be used to pull the fiber head;

[0009] A plurality of guide tooth groups are evenly arranged on the circumference of the rotating roller, and a pressing piece is provided on the machine base to cooperate with the guide tooth groups and to press the fiber head;

[0010] Driving cylinders connected to the pressing parts are symmetrically arranged on both sides of the machine base;

[0011] The driving cylinder is swung around the axis of the rotating roller;

[0012] The rotating roller comprises a rotating shaft, a clamping portion is provided on the rotating shaft, and a clamping block matching with the clamping portion is provided on the pressing member;

[0013] After the clamping block is clamped with the clamping portion, the driving cylinder swings synchronously with the rotation of the rotating shaft.

[0014] In the above scheme, preferably, the guide tooth group includes a plurality of comb teeth equidistantly arranged along the axis of the rotating roller, and the pressing piece is provided with tooth holes matching the comb teeth.

[0015] In the above scheme, preferably, the guide tooth groups are four groups, the clamping portion is a square rod, and the clamping block is provided with a clamping groove matching the square rod.

[0016] In the above scheme, preferably, a support plate for mounting the rotating shaft is provided on the machine base, a plurality of guide columns are provided on the driving cylinder, and guide grooves matching with the guide columns are provided on the support plate.

[0017] In the above scheme, preferably, one end of the guide column is fixedly connected to the driving cylinder, and the other end is provided with a swing plate after passing through a guide groove, and the swing plate is rotatably arranged on the rotating shaft.

[0018] In the above solution, preferably, a reset member is provided between the swing plate and the support plate.

[0019] In the above scheme, preferably, a lifting knife holder for mounting a cutting knife is provided on the machine base;

[0020] The rotating shaft is provided with a driving arm, the driving arm is provided with a driving slot, and the lifting tool holder is provided with a driving pin connected with the driving slot.

[0021] In the above solution, preferably, a one-way bearing is provided between the driving arm and the rotating shaft.

[0022] In the above solution, preferably, the cutter is made of high-speed steel.

[0023] In the above scheme, preferably, the chopped yarn produced by the chopped yarn equipment of basalt fiber chopped yarn has a length of 6mm-60mm, a diameter of basalt fiber monofilament is 3-10μm, and the number of fibers in a single bundle after chopped yarn is 50-150 / bundle.

[0024] The beneficial effects of the present invention are as follows: the present invention provides a basalt fiber chopped yarn and a chopped device thereof, by arranging a rotating roller cooperating with the cutter under the cutter and arranging a clamping mechanism of a traction head on the rotating roller, so that the traction head can be transported synchronously when the fiber is transported, thereby improving the flatness of the fiber during transportation, thereby improving the quality of the fiber after chopped, and keeping the length of the fiber after chopped within a reasonable error range.

[0025] In addition, the chopped yarns with different length requirements can be chopped by the chopped equipment, which improves the versatility of the equipment, improves production efficiency and is also beneficial to energy conservation and emission reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the main structure of the present invention.

[0027] Figure 2 For the present invention Figure 1 Schematic diagram of the local enlarged structure at point A in the middle.

[0028] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention.

[0029] Figure 4 It is a rear-view stereoscopic structural schematic diagram of the present invention.

[0030] Figure 5 It is a schematic diagram of the explosion structure at the supporting plate on one side of the rotating roller of the present invention.

[0031] Figure 6 It is a schematic diagram of the three-dimensional structure of the rotating roller of the present invention. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0033] Example 1: See Figure 1-Figure 6 .

[0034] A short-cutting device for basalt fiber chopped yarns comprises a machine base 1 and a cutter 2 which is lifted and arranged on the machine base 1. The cutter 2 is made of high-speed steel. A lifting tool holder 105 is arranged on the machine base 1. The lower end of the lifting tool holder 105 is fixedly connected to the cutter 2 by bolts. After the bolts are removed, the cutter 2 can be replaced. The upper end of the lifting tool holder 105 is connected to a lifting mechanism. The lifting mechanism is an existing technology of the short-cutting device. The lifting and lowering of the lifting mechanism can be controlled by a controller, thereby realizing the lifting and lowering of the cutter 2, so that the cutter 2 can realize the segment cutting function.

[0035] The base 1 is provided with a rotating roller 3 corresponding to the position of the cutter 2 and used for pulling the fiber head. Specifically, the rotating roller 3 is located directly below the tip of the cutter 2, and the vertical downward extension line of the tip of the cutter intersects with the central axis of the rotating roller 3, that is, the rotating roller 3 is located directly below the cutter 2. Figure 3 As shown, the rotating roller 3 is located at the right end of the machine base 1 , and the continuous basalt fiber bundle is transmitted to the right below the cutter 2 through the transmission mechanism at the left end of the machine base 1 , and the head of the fiber bundle is placed on the rotating roller 3 .

[0036] A plurality of guide tooth groups 301 are evenly arranged on the circumference of the rotating roller 3. In this embodiment, four guide tooth groups 301 are arranged as an example. Figure 6 In the state shown, the guide tooth group 301 includes a plurality of comb teeth 307 equidistantly arranged along the axis of the rotating roller 3, and the ends of the comb teeth 307 are spike-shaped. After the head of the basalt fiber bundle is placed on the guide tooth group 301, the comb teeth 307 can penetrate the fiber bundle to comb the head of the fiber bundle to prevent the head of the fiber bundle from tilting.

[0037] The machine base 1 is provided with a pressing piece 302 for pressing the fiber head in cooperation with the guide tooth group 301. The pressing piece 302 is in the shape of a long strip plate. The pressing piece 302 is provided with tooth holes 308 corresponding to the number of comb teeth 307 on the guide tooth group 301. The machine base 1 is symmetrically provided with support plates 101 on both sides. The two ends of the rotating roller 3 are rotatably connected to the support plates 101 through the rotating shaft 304. A driving cylinder 303 connected to the pressing piece 302 is swingably provided on the support plate 101. The driving cylinder 303 swings around the axis of the rotating roller 3. Specifically, a plurality of guide posts 310 are provided on the driving cylinder 303. In this embodiment, taking the provision of two groups of guide posts as an example, the support plate 101 is provided with a guide groove 102 in cooperation with the guide post 310. The driving cylinder 303 swings around the axis of the rotating roller 3 after sliding along the guide groove 102 through the guide post 310.

[0038] The upper end surfaces of the two ends of the pressing member 302 are fixedly connected to the push rod ends of the driving cylinder 303 on both sides. Figure 1 and Figure 5 As shown, the lower end surface is fixedly connected with a clamping block 306, and a clamping portion 305 is provided on the rotating shaft 304. The pressing piece 302 slides downward under the drive of the driving cylinder 303, so that the comb teeth 307 are penetrated with tooth holes 308, and then the pressing piece 302 presses the fiber bundle at the head, and at the same time, the clamping block 306 cooperates with the clamping portion 305 to make the pressing piece 302 and the rotating shaft 304 relatively fixed in the circumferential direction. At this time, when the rotating shaft 304 drives the rotating roller 3 to rotate, it can synchronously drive the pressing piece 302 and the driving cylinder 303 connected thereto to swing synchronously around the axis of the rotating roller 3, so that the end of the fiber bundle is fixed and then pulled to move around the rotating roller 3, even if the fiber bundle is transmitted with the head fixed, to ensure the flatness of its head.

[0039] In this embodiment, since four groups of guide tooth groups 301 are provided, the clamping portion 305 is provided in a square rod shape, and a clamping groove 309 matching the square rod is provided on the clamping block 306, that is, the rotating roller 3 is driven once and rotated 90°, and the length of the head of the fiber bundle transmitted after the rotating roller 3 rotates 90° is the length cut by the cutter 2. In order to make the cutter 2 have a better supporting cutting effect when cutting with the rotating roller 3, a cutting platform 5 is provided at each group of guide tooth groups 301 of the rotating roller 3.

[0040] In order to realize that the cutter 2 drives the cylinder 303 to reset and repeatedly cooperate with another set of guide teeth after cutting once, thereby realizing continuous cutting, in this embodiment, a swing plate 103 rotatably connected to the rotating shaft 304 is provided at the other end of the guide column 310, such as Figure 5 As shown, one end of the guide column 310 is fixed on the driving cylinder 303, and the other end is fixedly connected to the swing plate 103 after passing through the guide groove 102 on the support plate 101; a reset member 104 is arranged between the swing plate 103 and the support plate 101, and the reset member 104 can be a torsion spring or a scroll spring. When the driving cylinder 303 is clamped on the rotating shaft 304 through the clamping block 306, the rotating shaft 304 is Figure 2 After the drive cylinder 303 rotates counterclockwise in the direction shown, it slides counterclockwise along the guide groove 102. At the same time, the swing plate 103 also rotates synchronously, so that the reset member 104 is compressed and stored. After rotating 90 degrees, the cutter 2 is driven vertically to cut the fiber. Then the drive cylinder 303 is reset, the clamping block 306 is separated from the clamping portion 305, and the drive cylinder 303 is restored to the reset position under the reset force of the reset member 104. Figure 2 The initial state is shown.

[0041] The chopped yarn produced by the chopped yarn device of the above-mentioned basalt fiber chopped yarn has a length of 6mm-60mm, which is adjusted according to the diameter of the rotating roller 3 and the specific setting number of the guide tooth group 301. The diameter of the basalt continuous fiber monofilament entering the chopped yarn device is 3-10μm, and the number of single bundles of the filaments after chopping is 50-150 / bundle.

[0042] Embodiment 2: This embodiment further improves the driving method of the rotating roller 3 on the basis of Embodiment 1, so that the cooperation between the rotating roller 3 and the cutter 2 is more convenient. Specifically, a driving bracket 6 is fixedly provided on the lifting tool holder 105, and a driving pin 403 is provided at the lower end of the driving bracket 6.

[0043] A driving arm 401 is provided at the end of the rotating shaft 304, and a driving groove 402 is provided on the driving arm 401. A driving pin 403 passes through the driving groove 402, and the driving groove 402 is a long groove. A one-way bearing 404 is provided between the driving arm 401 and the rotating shaft 304; when the cutter 2 needs to be cut, the lifting knife frame 105 slides down and drives the driving bracket 6 to descend synchronously. At this time, the driving arm 401 drives the rotating shaft 304 to rotate with the cooperation of the driving pin 403 and the driving groove 402, until the rotating shaft 304 rotates 90°, the tip of the cutter 2 just contacts the cutting platform on the rotating roller 3 to cut the fiber bundle, and then the lifting knife frame 105 slides upward, and the driving arm 401 rotates relative to the rotating shaft 304 under the action of the one-way bearing 404.

[0044] In this embodiment, the driving cylinder 303 can be centrally controlled by the controller provided by the short cutting device and the lifting mechanism on the cutter 2.

[0045] A method for chopping basalt fiber chopped yarn using a chopping device as described above:

[0046] S1: Place the head of the basalt fiber on the guide tooth set 301 above the rotating roller 3, so that the comb teeth 307 penetrate the basalt fiber, and then drive the cylinder 303 to drive the pressing piece 302 to slide downward to cooperate with the comb teeth 307 and the surface of the rotating roller 3 to press the fiber head;

[0047] S2: When the pressing piece 302 in S1 slides down, the clamping block 306 is clamped into the clamping portion 305 of the rotating shaft 304 through the clamping groove 309;

[0048] S3: The lifting tool holder 105 slides down, so that the cutter 2 starts cutting. When the lifting tool holder 105 slides down, the driving bracket 6 is driven to descend synchronously. At this time, the driving arm 401 drives the rotating shaft 304 to rotate under the cooperation of the driving pin 403 and the driving slot 402;

[0049] S4: The rotating shaft 304 drives the rotating roller 3 to rotate 90°, so that the head of the fiber is transported for a distance of 90°, that is, this distance is the cutting length. After the rotating shaft 304 rotates 90°, the tip of the cutter 2 just contacts the cutting platform on the rotating roller 3 to cut the fiber bundle;

[0050] S5: In S4, while the rotating roller 3 rotates, the other guide tooth set 301 rotates synchronously, and after rotating 90°, it is located at the initial position of the previous guide tooth set 301. After the cutter 2 cuts the fibers of the previous stroke, the lifting knife holder 105 slides upward, and the driving arm 401 rotates relative to the rotating shaft 304 under the action of the one-way bearing 404. At the same time, the driving cylinder 303 is reset and restored to the initial state under the action of the reset force of the reset member 104.

[0051] S6: Then repeat S1.

[0052] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A chopped basalt fiber yarn chopping device, comprising a machine base (1) and a cutter (2) arranged on the machine base (1) in a lifting manner, characterized in that: The machine base (1) is provided with a rotating roller (3) which cooperates with the cutter (2) and can be used to pull the fiber head; A plurality of guide tooth groups (301) are evenly arranged on the circumference of the rotating roller (3), and a pressing piece (302) is provided on the machine base (1) and is matched with the guide tooth groups (301) and is used to press the fiber heads; Driving cylinders (303) connected to the pressing pieces (302) are symmetrically provided on both sides of the machine base (1); The driving cylinder (303) is arranged to swing around the axis of the rotating roller (3); The rotating roller (3) comprises a rotating shaft (304), a clamping portion (305) is provided on the rotating shaft (304), and a clamping block (306) matching the clamping portion (305) is provided on the pressing piece (302); After the clamping block (306) is clamped with the clamping portion (305), the driving cylinder (303) swings synchronously with the rotation of the rotating shaft (304).

2. The chopped basalt fiber yarn chopping device according to claim 1, characterized in that: The guide tooth group (301) comprises a plurality of comb teeth (307) arranged at equal distances along the axis of the rotating roller (3), and the pressing piece (302) is provided with tooth holes (308) matching the comb teeth (307).

3. The chopped basalt fiber strands equipment according to claim 1, characterized in that: The guide tooth groups (301) are four groups, the clamping portion (305) is a square rod, and the clamping block (306) is provided with a clamping groove (309) that matches the square rod.

4. A chopped basalt fiber strand chopping device according to any one of claims 1 to 3, characterized in that: The machine base (1) is provided with a support plate (101) for mounting a rotating shaft (304), the driving cylinder (303) is provided with a plurality of guide posts (310), and the support plate (101) is provided with guide grooves (102) matching the guide posts (310).

5. The chopped basalt fiber strands equipment according to claim 4, characterized in that: One end of the guide column (310) is fixedly connected to the driving cylinder (303), and the other end is provided with a swing plate (103) after passing through the guide groove (102). The swing plate (103) is rotatably arranged on the rotating shaft (304).

6. The chopped basalt fiber yarn chopping device according to claim 5, characterized in that: A reset member (104) is provided between the swing plate (103) and the support plate (101).

7. The chopped basalt fiber strands equipment according to claim 1, characterized in that: The machine base (1) is provided with a lifting knife holder (105) for mounting the cutting knife (2); The rotating shaft (304) is provided with a driving arm (401), the driving arm (401) is provided with a driving slot (402), and the lifting tool holder (105) is provided with a driving pin (403) connected to the driving slot (402).

8. The chopped basalt fiber strands device according to claim 7, characterized in that: A one-way bearing (404) is provided between the driving arm (401) and the rotating shaft (304).

9. The chopped basalt fiber strands equipment according to claim 1, characterized in that: The cutter (2) is made of high-speed steel.

10. Chopped yarn produced by using the chopped yarn equipment of basalt fiber according to claim 1, characterized in that: The length of the chopped yarn is 6 mm-60 mm, the diameter of the basalt fiber monofilament is 3-10 μm, and the number of fibers in a single bundle after chopped yarn is 50-150.

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