A preparation system for short-section basalt fiber composite material

Abstract

The present invention relates to the technical field of preparation of concrete reinforcement components, and in particular to a preparation system for short-section basalt fiber composite materials. The preparation system includes a cutting module, which includes a cutter disc, a cutter, an elastic body, and an abutment plate; the cutter disc is rotatably arranged on a frame, and a circumferential first annular groove is provided on the outer peripheral surface of the cutter disc; the cutter is adjustably mounted on the cutter disc; the abutment plate is mounted on the frame through an elastic body and is located below the cutter disc; when the cutter disc rotates, the first annular groove can pull the continuous basalt fiber composite material through the top of the abutment plate, and when the blade rotates to abut against the continuous basalt fiber composite material, the blade can cut the continuous basalt fiber composite material to obtain a short-section basalt fiber composite material. The length difference of the obtained short-section basalt fiber composite material can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of concrete reinforcement component preparation, and in particular to a preparation system for a short-section basalt fiber composite material. Background Art

[0002] In the construction process of concrete building structures such as tunnel segments, floors, and pavements, in order to improve the tensile strength of the structure, thereby reducing the occurrence of cracks, and improving the durability and fatigue strength of the structure, reinforcing materials such as steel fibers are usually added during the preparation of concrete to improve the tensile strength, crack resistance, and impact resistance of the concrete itself. However, there are many problems with using steel fibers as concrete reinforcing materials, such as accelerating the wear of the mixing equipment during the mixing of concrete, easily puncturing the pipe during the pumping process, rebounding and injuring people during the injection, and the steel fibers themselves are prone to rust. For this reason, more and more concrete reinforcing materials are being developed and produced, and basalt fiber is one of them. However, the short-section basalt fiber composites produced by existing production equipment are usually of different lengths, resulting in large differences in the properties of concrete (mechanical properties, working performance, etc.) at the same dosage.

[0003] Therefore, it is urgent to propose a new preparation system for short-section basalt fiber composite materials, which can reduce the length difference of the short-section basalt fiber composite materials on the one hand, and screen and grade the short-section basalt fiber composite materials according to their length on the other hand. Summary of the invention

[0004] The object of the present invention is to provide a preparation system of short-section basalt fiber composite materials, which can at least partially overcome the above-mentioned technical problems. On the one hand, it can reduce the length difference of the short-section basalt fiber composite materials obtained, and on the other hand, it can screen and grade the obtained short-section basalt fiber composite materials according to their length.

[0005] The present invention provides a preparation system of a short-section basalt fiber composite material, comprising a coating module, the coating module is used to form a coating layer on the surface of a twisted continuous basalt fiber to prepare a continuous basalt fiber composite material; and also comprises a cutting module, the cutting module comprises a cutter disc, a cutter, an elastic body and an abutment plate; the cutter disc is rotatably arranged on a frame, and the rotating shaft of the cutter disc is parallel to a horizontal plane, a circumferential first annular groove is provided on the outer peripheral surface of the cutter disc, and a flexible anti-slip ring is sleeved in the first annular groove; the cutter is adjustably mounted on the cutter disc , and the blade of the cutter is parallel to the rotating shaft of the cutter disc; the abutment plate is installed on the frame through the elastic body and is located below the cutter disc, and the abutment plate can be relatively displaced with the frame in the vertical direction; when the cutter disc rotates, the first annular groove can pull the continuous basalt fiber composite material over the abutment plate, and when the blade rotates to abut against the continuous basalt fiber composite material, the blade can cut the continuous basalt fiber composite material to obtain the short section of basalt fiber composite material.

[0006] Furthermore, the cutting module also includes an auxiliary delivery component, which can push the continuous basalt fiber composite material to continue to move forward in the traction direction of the first annular groove while the blade cuts the continuous basalt fiber composite material.

[0007] Furthermore, the auxiliary delivery assembly includes a crank, a connecting rod and a swing rod; a first gear that rotates synchronously with the cutter disc is arranged on the rotating shaft of the cutter disc, and a second gear that meshes with the first gear is rotatably arranged on the frame; one end of the crank is fixedly mounted on the second gear, and the other end is hinged to one end of the connecting rod; one end of the swing rod is hinged to the frame, and the other end of the swing rod is hinged to the midpoint of the connecting rod; the second gear, the crank, the connecting rod and the swing rod satisfy the following relationship: L1=L2=2L3=0. 5L4, wherein L1 represents the length of the rocker arm, L2 represents the distance between the hinge point of the rocker arm and the frame and the rotating shaft of the second gear, L3 represents the distance between one end of the crank and the connecting rod hinged and the rotating shaft of the second gear, and L4 represents the length of the connecting rod; an abutment portion is provided on the other end of the connecting rod, and when the cutter disc rotates and cuts off the continuous basalt fiber composite material, the abutment portion can move downward to abut against the continuous basalt fiber composite material and push the continuous basalt fiber composite material to continue to move forward in the traction direction of the first annular groove.

[0008] Furthermore, the cutter is installed on the cutter disc along the radial sliding direction of the cutter disc, and a wedge-shaped portion is provided on the end of the cutter away from the blade; the cutting module also includes an adjusting disk, the adjusting disk is provided on one side of the cutter disc, and a pushing portion is provided on the side of the adjusting disk close to the cutter disc corresponding to the wedge-shaped portion; the adjusting disk is connected to the cutter disc by bolts, and the distance between the cutter disc and the adjusting disk can be adjusted by rotating the bolts.

[0009] Furthermore, it also includes a screening module, which includes a guide groove, a rotating drum and a grading screen; the guide groove is obliquely installed on the frame, the rotating drum is rotatably installed on the frame and the rotating axis of the rotating drum is parallel to the guide groove; one end of the guide groove is connected to the end of the cutting module that discharges the short-section basalt fiber composite material, and the other end is located above the rotating drum; a plurality of accommodating grooves of preset lengths are axially opened on the outer circumference of the rotating drum, and the end face of the lower end of each of the accommodating grooves coincides with the first cross-section of the rotating drum; a through port is opened on the bottom surface of the guide groove; the grading screen is sleeved on the outside of the rotating drum, and the grading screen is sleeved on the outside of the rotating drum. A plurality of axial screening openings are provided on the lower circumferential surface of the grade screen, and the end face of the lower end of each screening opening coincides with the second cross section of the drum, and the second cross section is located on the side of the first cross section close to the cutting module; the length of each screening opening increases successively along the rotation direction of the drum; after the short section of basalt fiber composite material enters the guide groove, it can fall into the containing groove below the through opening through the through opening and rotate to the through opening; in the process of the drum rotating so that the short section of basalt fiber composite material passes through each screening opening one by one, the short section of basalt fiber composite material can fall out through the screening opening of corresponding length.

[0010] Furthermore, the distance between the bottom surface of the containing tank and the inner wall of the grading screen, and the distance between the outer wall of the rotating drum and the inner wall of the grading screen satisfy the following relationship: D<d<2D, h<D, wherein D is the diameter of the short section of basalt fiber composite material, d is the distance between the bottom surface of the containing tank and the inner wall of the grading screen, and h is the distance between the outer wall of the rotating drum and the inner wall of the grading screen.

[0011] Further, the axis of the rotating drum is offset toward the screening opening.

[0012] Furthermore, the screening module also includes a pushing member; the pushing member is slidably inserted into the guide groove perpendicular to the bottom surface of the guide groove; a cam portion is also provided at the end of the rotating drum close to the cutting module, and the circumferential surface of the cam portion abuts against the lower end of the pushing member; the rotating axis of the cam portion coincides with the rotating axis of the rotating drum, and the raised sections on the circumferential surface of the cam portion correspond one by one to the positions of each of the accommodating grooves.

[0013] Furthermore, the guide groove and the end of the abutment plate away from the covering module are connected by a transition groove; one end of the transition groove is hinged to the guide groove, and a slide groove is provided at the lower part of the other end, and a sliding pin is provided at the end of the abutment plate away from the covering module, and the sliding pin is inserted in the slide groove.

[0014] Furthermore, under each of the screening openings, there is a one-to-one corresponding outlet channel connected, and each of the outlet channels can outlet the short-section basalt fiber composite material passing through each of the screening openings to a corresponding collection bin.

[0015] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0016] 1. A preparation system for a short-section basalt fiber composite material provided by an embodiment of the present invention can pull the continuous basalt fiber composite material from the coating module by driving the cutter disc to rotate, and when the blade of the cutter rotates to abut against the continuous basalt fiber composite material, the cutter can cut the continuous basalt fiber composite material once, thereby realizing a fixed-length cutting of the continuous basalt fiber composite material passing through; by adjusting the cutter, the distance between the blade and the cutter disc is changed, that is, the cutting length can be adjusted; by setting an elastic body and abutting The cutting module can adapt to the adjustment of the cutter. Compared with the conventional adjustment method of adjusting the height of the cutter shaft, it can avoid the situation of continuous cutting or "knife blocking" caused by adjustment errors. After the cutter is raised, the abutment plate presses the continuous basalt fiber composite material upward under the action of the elastic body. After the cutter is lowered, the abutment plate gives way downward in the process of being pushed by the cutter under the action of the elastic body. By opening the first annular groove and setting the flexible anti-skid ring, the friction between the cutter disc and the continuous basalt fiber composite material can be greatly improved, thereby ensuring the continuous and stable traction effect.

[0017] 2. A preparation system for a short-section basalt fiber composite material provided by an embodiment of the present invention, by providing an auxiliary delivery component, during the process of the cutter disc rotating and pulling the continuous basalt fiber composite material, the second gear rotates counterclockwise, which can make the end of the connecting rod away from the crank do reciprocating motion along a trajectory similar to a semicircle. Specifically, the outward stroke is approximately a minor arc, and the return stroke is the chord corresponding to the minor arc. The return stroke motion can be used to enable the abutment portion to push the continuous basalt fiber composite material toward the cutter disc. By adjusting the initial rotation angle of the crank and the cutter disc, the continuous basalt fiber composite material can be pushed into the first annular groove within a short time after the cutter cuts off the continuous basalt fiber composite material, thereby achieving the role of auxiliary delivery, and avoiding the large difference in the length of the short-section basalt fiber composite material cut out due to discontinuous pulling;

[0018] 3. A preparation system of a short-section basalt fiber composite material provided by an embodiment of the present invention, by setting a screening module, after the cutting module cuts the continuous basalt fiber composite material into short-section basalt fiber composite materials, the short-section basalt fiber composite material will slide down along the guide groove and be corrected during the sliding process. After sliding down to the bottom along the guide groove, it will stop at the through-port. When the drum rotates to any receiving groove aligned with the bottom of the through-port, the short-section basalt fiber composite material falls into the receiving groove through the through-port, and then rotates in the receiving groove to the length of the short-section basalt fiber composite material. When the short-section basalt fiber composite material preparation system reaches the corresponding screening port, the short-section basalt fiber composite material preparation system falls out through the screening port, and after the short-section basalt fiber composite material cut by the cutting module continuously enters the screening module, all the short-section basalt fiber composite materials are screened according to the preset screening port length; by biasing the axis of the rotating drum toward the screening port, the distance between the bottom surface of the accommodating groove and the inner wall of the grading screen can be gradually reduced during the rotation of the rotating drum from the through port to the screening port, so that the bent short-section basalt fiber composite material can be corrected, thereby straightening the prepared short-section basalt fiber composite material.

[0019] 4. A preparation system for a short-section basalt fiber composite material provided by an embodiment of the present invention provides a transition groove. During each cutting process of the cutter, the abutment plate will reciprocate in the vertical direction, thereby causing the transition groove to swing back and forth slightly around the hinge between the transition groove and the guide groove, thereby giving a shaking effect to the short-section basalt fiber composite material that has just entered the guide groove. Combined with the pushing effect after the cutter cuts off, the short-section basalt fiber composite material can slide down to the position of the through-port more quickly; in addition, during the rotation of the transition groove around the hinge between the transition groove and the guide groove, the vibration caused by the collision with the guide groove can also accelerate the sliding of the short-section basalt fiber composite material in the guide groove, thereby avoiding congestion of multiple short-section basalt fiber composite materials in the guide groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0021] Figure 1 It is a schematic diagram of a system for preparing a short-section basalt fiber composite material according to an embodiment of the present invention;

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of a cutting module of a system for preparing a short-section basalt fiber composite material according to an embodiment of the present invention;

[0023] Figure 3It is a schematic diagram of the three-dimensional structure of a cutting module of a system for preparing a short-section basalt fiber composite material according to an embodiment of the present invention, from another perspective;

[0024] Figure 4 A simplified diagram of the mechanism of the auxiliary delivery component according to an embodiment of the present invention;

[0025] Figure 5 Based on Figure 3 A longitudinal cross-sectional view of a cutting module of a system for preparing a short-section basalt fiber composite material is shown, wherein the cut plane crosses the cutter disc;

[0026] Figure 6 Based on Figure 5 A partial enlarged view of area A is shown;

[0027] Figure 7 Based on Figure 3 Another longitudinal cross-sectional view of a cutting module of a system for preparing short-section basalt fiber composite material is shown, wherein the cutting plane is vertical and passes through the rotation axis of the cutter disc;

[0028] Figure 8 A schematic diagram of the three-dimensional structure of a screening module according to an embodiment of the present invention;

[0029] Fig. 9 A longitudinal sectional view of a screening module according to an embodiment of the present invention, wherein the sectional view is vertical and passes through the rotating axis of the drum;

[0030] Fig.10 It is a schematic diagram showing that the guide groove and the end of the abutment plate away from the covering module are connected via a transition groove according to an embodiment of the present invention.

[0031] Marks and corresponding parts names in the attached drawings:

[0032] 1-coating module; 2-cutting module; 21-knife disc; 211-first annular groove; 22-cutter; 221-blade; 222-wedge-shaped portion; 23-elastic body; 24-abutment plate; 241-sliding pin; 25-crank; 26-connecting rod; 261-abutment portion; 262-flexible friction portion; 27-rocker; 28-first gear; 29-second gear; 20-adjusting plate; 3-screening module; 31-guide groove; 311-passing port; 32-rotating drum; 321-accommodating groove; 322-cam portion; 33-grading screen; 331-screening port; 34-thrust member; 4-transition groove; 41-slide groove; 5-frame; 61-continuous basalt fiber composite material; 62-short section basalt fiber composite material. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments and drawings. The schematic implementation modes and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention. It should be noted that the present invention is already in the actual development and use stage.

[0034] In the construction process of concrete building structures such as tunnel segments, floors, and pavements, in order to improve the tensile strength of the structure, thereby reducing the occurrence of cracks, and improving the durability and fatigue strength of the structure, reinforcing materials such as steel fibers are usually added during the preparation of concrete to improve the tensile strength, crack resistance, and impact resistance of the concrete itself. However, there are many problems with using steel fibers as concrete reinforcing materials, such as accelerating the wear of the mixing equipment during the mixing of concrete, easily puncturing the pipe during the pumping process, rebounding and injuring people during the injection, and the steel fibers themselves are prone to rust. For this reason, more and more concrete reinforcing materials are being developed and produced, and basalt fiber is one of them. However, the short-section basalt fiber composites produced by existing production equipment are usually of different lengths, resulting in large differences in the properties of concrete (mechanical properties, working performance, etc.) at the same dosage.

[0035] To this end, the present invention provides a preparation system for short-section basalt fiber composite materials, which can reduce the length difference of the prepared short-section basalt fiber composite materials on the one hand, and can screen and grade the prepared short-section basalt fiber composite materials according to their length on the other hand.

[0036] Embodiment 1:

[0037] like Figures 1 to 7 As shown, this embodiment provides a system for preparing a short-section basalt fiber composite material, including a coating module 1, wherein the coating module 1 is used to form a coating layer on the surface of a twisted continuous basalt fiber to prepare a continuous basalt fiber composite material 61;

[0038] The preparation system of the short-section basalt fiber composite material further comprises a cutting module 2, wherein the cutting module 2 comprises a cutter disc 21, a cutter 22, an elastic body 23 and an abutment plate 24;

[0039] The cutter disc 21 is rotatably mounted on a frame 5, and the rotation axis of the cutter disc 21 is parallel to a horizontal plane. A circumferential first annular groove 211 is provided on the outer circumference of the cutter disc 21, and a flexible anti-slip ring is sleeved in the first annular groove 211.

[0040] The cutter 22 is adjustably mounted on the cutter disc 21, and the blade 221 of the cutter 22 is parallel to the rotation axis of the cutter disc 21;

[0041] The abutment plate 24 is installed on the frame 5 through the elastic body 23 and is located below the cutter disc 21. The abutment plate 24 can be relatively displaced with the frame 5 in the vertical direction.

[0042] When the cutter disc 21 rotates, the first annular groove 211 can pull the continuous basalt fiber composite material 61 over the abutment plate 24, and when the blade 221 rotates to abut against the continuous basalt fiber composite material 61, the blade 221 can cut the continuous basalt fiber composite material 61 to obtain the short section of basalt fiber composite material 62.

[0043] Specifically, if Figure 1 As shown, the above-mentioned coating module 1 specifically includes ( Figure 1The feeding mechanism comprises a feeding mechanism, an impregnation mechanism, a shaping mechanism and a drying mechanism (from left to right in the figure); wherein the feeding mechanism is used to install a coil wound with twisted continuous basalt fibers, and to apply a preset resistance to the rotation of the coil, so that during the continuous pulling of the twisted continuous basalt fibers, the coil can tension the twisted continuous basalt fibers while releasing the twisted continuous basalt fibers; the impregnation mechanism comprises an impregnation tank, in which a coating material (preferably, the coating material is made of epoxy resin, The continuous basalt fiber is composed of an inorganic powder and a coupling agent. When the twisted continuous basalt fiber is pulled through the infiltration tank, the coating material can be coated on the surface of the twisted continuous basalt fiber. The shaping mechanism can shape the surface of the continuous basalt fiber with the coating material coated on the surface being pulled through, so that the shape of the continuous basalt fiber with the coating material coated on the surface is more regular. Specifically, the shaping mechanism includes an upper rotating roller and a lower rotating roller with contacting circumferential surfaces. The circumferential surfaces of the upper rotating roller and the lower rotating roller are both provided with The second annular groove is provided in a circumferential direction, and the linear speed direction of the upper rotating roller and the lower rotating roller at the contact point of the circumferential surface is in the same direction as the pulling direction. When the continuous basalt fiber with the coating material on the surface is pulled through between the upper rotating roller and the lower rotating roller, the second annular groove constrains the continuous basalt fiber with the coating material on the surface and shapes its cross section into a shape corresponding to the cross section of the two second annular grooves. In addition, when the continuous basalt fiber with the coating material on the surface is pulled through between the upper rotating roller and the lower rotating roller, the upper rotating roller and the lower rotating roller are also rotating. (The direction of the linear velocity of the upper roller and the lower roller at the contact point of the circumferential surface is in the same direction as the pulling direction), relative to the orifice plate type shaping (referring to shaping by pulling the continuous basalt fiber with the coating material on the surface through the orifice plate with a preset aperture), even if the pulling direction deviates from the preset direction, it can ensure that the thickness of the coating layer after shaping is uniform; the drying mechanism can dry the coating material coated on the surface of the continuous basalt fiber so that it is tightly coated on the surface of the continuous basalt fiber to obtain a continuous basalt fiber composite material 61. Preferably, a powder spraying mechanism is also provided between the shaping mechanism and the drying mechanism, and the powder spraying mechanism can spray epoxy resin powder.

[0044] Based on this, by driving the cutter head 21 to rotate (corresponding to Figure 2 The middle blade disc 21 rotates counterclockwise), and can pull the continuous basalt fiber composite material 61 from the coating module 1 (the pulling effect of the continuous basalt fiber composite material 61 is achieved through the first annular groove 211, corresponding to Figure 2The continuous basalt fiber composite material 61 moves to the right in the middle), and when the blade 221 of the cutter 22 rotates to abut against the continuous basalt fiber composite material 61, the cutter 22 can cut the continuous basalt fiber composite material 61 once, and then can cut the continuous basalt fiber composite material 61 that passes through with a fixed length (i.e., the circumference of one rotation of the blade 221); by adjusting the cutter 22, the distance between the blade 221 and the cutter disc 21 is changed, that is, the cutting length can be adjusted; by setting the elastic body 23 and the abutment plate 24, the cutting module 2 can adapt to the adjustment of the cutter 22. Compared with the conventional adjustment method (referring to the adjustment method of fixing the abutment plate 24, adjusting the height position of the rotating shaft of the cutter disc 21, and correspondingly adjusting the distance between the rotating shafts of the cutter 22 and the cutter disc 21), it can avoid the situation of continuous cutting (i.e., too high adjustment) or "blocking the knife" (i.e., too low adjustment) caused by adjustment errors. After the cutter 22 is raised (close to the axis), under the action of the elastic body 23, the abutment plate 24 presses against the continuous basalt fiber composite material 61 upwards. After the cutter 22 is lowered (far away from the axis), under the action of the elastic body 23, the abutment plate 24 gives way downwards in the process of being pushed by the cutter 22; by providing the first annular groove 211 and setting the flexible anti-skid ring, the friction between the cutter disc 21 and the continuous basalt fiber composite material 61 can be greatly improved, thereby ensuring the continuous and stable traction effect. It is worth noting that in the present application, the traction speed of the continuous basalt fiber composite material 61 is associated with the first annular groove 211, that is, the traction speed is directly related to the rotation speed of the cutter disc 21. Based on this, compared with the design of using a delivery mechanism alone, after the adjustment position of the cutter 22 is determined, even if the rotation speed of the cutter disc 21 fluctuates (for example, voltage instability causes the rotation speed of the drive motor to fluctuate), it will not have a significant impact on the cutting length, which is conducive to reducing the length difference of the obtained short section basalt fiber composite material 62. In particular, the cutting knife 22 of the present application cuts the continuous basalt fiber composite material 61 in the form of "chopping", which can effectively avoid the "explosion" of basalt fibers at the cut of the short-section basalt fiber composite material 62, and is conducive to the short-section basalt fiber composite material 62 to maintain its shape after being mixed into concrete.

[0045] Preferably, the cutting module 2 further comprises an auxiliary delivery component, which can push the continuous basalt fiber composite material 61 to continue to move forward in the traction direction of the first annular groove 211 while the blade 221 cuts the continuous basalt fiber composite material 61 .

[0046] Specifically, the auxiliary delivery assembly includes a crank 25, a connecting rod 26 and a rocker 27;

[0047] A first gear 28 is provided on the rotating shaft of the cutter disc 21 and rotates synchronously with the cutter disc 21, and a second gear 29 meshing with the first gear 28 is rotatably provided on the frame 5;

[0048] One end of the crank 25 is fixedly mounted on the second gear 29, and the other end is hinged to one end of the connecting rod 26; one end of the swing rod 27 is hinged to the frame 5, and the other end of the swing rod 27 is hinged to the midpoint of the connecting rod 26;

[0049] The following relationship is satisfied between the second gear 29, the crank 25, the connecting rod 26, and the rocker 27:

[0050] L1=L2=2L3=0.5L4,

[0051] Wherein, L1 represents the length of the swing rod 27, L2 represents the distance between the hinge point of the swing rod 27 and the frame 5 and the rotation axis of the second gear 29, L3 represents the distance between the end of the crank 25 and the connecting rod 26 and the rotation axis of the second gear 29, and L4 represents the length of the connecting rod 26;

[0052] An abutment portion 261 is provided on the other end of the connecting rod 26. When the cutter disc 21 rotates and cuts off the continuous basalt fiber composite material 61, the abutment portion 261 can move downward to abut against the continuous basalt fiber composite material 61 and push the continuous basalt fiber composite material 61 to continue to move forward in the traction direction of the first annular groove 211.

[0053] Based on this, during the process of the cutter head 21 rotating and pulling the continuous basalt fiber composite material 61 (corresponding to Figure 3 The middle blade disc 21 rotates clockwise), and the second gear 29 rotates counterclockwise, so that the end of the connecting rod 26 away from the crank 25 can reciprocate along a semicircular trajectory. Specifically, as Figure 4As shown in the figure, the dotted line is the movement trajectory of the end of the connecting rod 26 away from the crank 25. The outward stroke (movement in the direction away from the cutter disc 21) is approximately a minor arc, and the return stroke (movement in the direction close to the cutter disc 21) is the chord corresponding to the minor arc. The return stroke movement can enable the abutment portion 261 to push the continuous basalt fiber composite material 61 toward the cutter disc 21. By adjusting the initial rotation angle of the crank 25 and the cutter disc 21, the continuous basalt fiber composite material 61 can be pushed into the first annular groove 211 within a short period of time after the cutter 22 cuts off the continuous basalt fiber composite material 61 (during this period, the traction effect of the cutter disc 21 is prone to fail, that is, the position of the incision cannot be effectively pulled by the first annular groove 211), thereby achieving the function of auxiliary delivery. Preferably, a flexible friction portion 262 is provided on the abutment portion 261. On the one hand, the flexible friction portion 262 can adapt to slight changes in the height of the abutment portion 261 during the return movement. On the other hand, it can also increase the friction between the abutment portion 261 and the continuous basalt fiber composite material 61 to avoid large differences in the length of the short sections of the basalt fiber composite material 62 cut out due to intermittent traction.

[0054] More preferably, the cutter 22 is slidably mounted on the cutter disc 21 along the radial direction of the cutter disc 21, and a wedge-shaped portion 222 is provided on one end of the cutter 22 away from the blade 221;

[0055] The cutting module 2 further comprises an adjusting disk 20, which is arranged on one side of the cutter disk 21, and a pushing portion is arranged on one side of the adjusting disk 20 close to the cutter disk 21 corresponding to the wedge-shaped portion 222;

[0056] The adjusting disk 20 is connected to the cutter disk 21 via bolts, and the distance between the cutter disk 21 and the adjusting disk 20 can be adjusted by rotating the bolts.

[0057] Based on this, by rotating the bolt, the distance between the cutter disc 21 and the adjustment disc 20 can be adjusted. When the bolt is screwed in to reduce the distance between the cutter disc 21 and the adjustment disc 20, the push portion pushes the wedge-shaped portion 222, so that the cutter 22 can be extended (that is, the blade 221 is away from the rotating shaft of the cutter disc 21). It should be understood that in order to facilitate the adjustment of the retraction of the cutter 22, preferably, an elastic member can be provided at the sliding position of the cutter 22, for example, Figure 6 As shown, a spring is arranged between the cutter 22 and the cutter disc 21 along the sliding direction. By unscrewing the bolt, after the push portion retreats, the cutter 22 retracts under the action of the spring.

[0058] Embodiment 2:

[0059] like Figure 8 , Fig. 9As shown, this embodiment is based on the embodiment 1, and the difference is that the preparation system of the short-section basalt fiber composite material provided in this embodiment further includes a screening module 3, and the screening module 3 includes a guide groove 31, a rotating drum 32 and a grading screen 33;

[0060] The guide groove 31 is obliquely mounted on the frame 5, and the rotating drum 32 is rotatably mounted on the frame 5, and the rotating axis of the rotating drum 32 is parallel to the guide groove 31; one end of the guide groove 31 is connected to one end of the cutting module 2 for discharging the short-section basalt fiber composite material 62, and the other end is located above the rotating drum 32;

[0061] A plurality of accommodating grooves 321 of a preset length are axially opened on the outer circumference of the rotating drum 32, and the end surface of the lower end of each accommodating groove 321 coincides with the first cross section of the rotating drum 32; a through opening 311 is opened on the bottom surface of the guide groove 31;

[0062] The grading screen 33 is sleeved on the outside of the drum 32, and a plurality of axial sieving openings 331 are provided on the lower circumference of the grading screen 33. The end surface of the lower end of each sieving opening 331 coincides with the second cross section of the drum 32, and the second cross section is located on the side of the first cross section close to the cutting module 2; the length of each sieving opening 331 increases in sequence along the rotation direction of the drum 32;

[0063] After the short section of basalt fiber composite material 62 enters the guide groove 31, it can fall into the accommodating groove 321 rotated below the through opening 311 through the through opening 311; in the process of the rotating drum 32 rotating so that the short section of basalt fiber composite material 62 passes through each of the screening openings 331 one by one, the short section of basalt fiber composite material 62 can fall out through the screening openings 331 of corresponding length.

[0064] More specifically, the distance between the bottom surface of the containing groove 321 and the inner wall of the grading screen 33, and the distance between the outer wall of the drum 32 and the inner wall of the grading screen 33 satisfy the following relationship:

[0065] D<d<2D,h<D,

[0066] Wherein, D is the diameter of the short section basalt fiber composite material 62 , d is the distance between the bottom surface of the containing groove 321 and the inner wall of the grading screen 33 , and h is the distance between the outer wall of the drum 32 and the inner wall of the grading screen 33 .

[0067] In the cutting process of the cutting module 2, it is inevitable that the lengths of the short sections of basalt fiber composite materials 62 obtained by cutting will be different due to wear, looseness, etc. The length difference will easily affect the fluidity and mechanical properties of the concrete obtained after mixing. Therefore, it is necessary to screen them according to their length.

[0068] According to the preparation system of the short-section basalt fiber composite material provided in the present embodiment, after the cutting module 2 cuts the continuous basalt fiber composite material 61 into the short-section basalt fiber composite material 62, the short-section basalt fiber composite material 62 will slide down along the guide groove 31 and be corrected in the process of sliding down (i.e., corrected in the direction of the guide groove 31). After sliding down to the bottom along the guide groove 31, it will stop at the through opening 311. When the rotating drum 32 rotates to any of the accommodating grooves 321 aligning with the bottom of the through opening 311, the short section The basalt fiber composite material 62 falls into the accommodating groove 321 through the through opening 311, and when the accommodating groove 321 rotates to the screening opening 331 corresponding to the length of the short-section basalt fiber composite material 62, the preparation system of the short-section basalt fiber composite material falls out through the screening opening 331. After the short-section basalt fiber composite material 62 cut by the cutting module 2 continuously enters the screening module 3, all the short-section basalt fiber composite materials 62 are screened according to the preset length of the screening opening 331.

[0069] More preferably, a guide channel is connected one by one below each of the screening openings 331 , and each of the guide channels can guide the short-section basalt fiber composite material 62 passing through each of the screening openings 331 to a corresponding collection bin.

[0070] Thus, the short sections of basalt fiber composite materials 62 of different lengths derived from each screening port 331 can be directly delivered to the corresponding collection bin, so as to facilitate subsequent packaging according to length.

[0071] Preferably, the axis of the drum 32 is offset toward the screening opening 331. That is, for any of the accommodating grooves 321, during the process of the accommodating groove 321 rotating from the position of the through opening 311 to the position of the screening opening 331 with the shortest length, the distance between the bottom surface of the accommodating groove 321 and the inner wall of the grading screen 33 gradually decreases.

[0072] In the process of cutting the continuous basalt fiber composite material 61 by the cutting module 2, it is inevitable that the end of the short section basalt fiber composite material 62 will be slightly bent. By biasing the axis of the rotating drum 32 toward the screening port 331, the distance between the bottom surface of the accommodating groove 321 and the inner wall of the grading screen 33 can be gradually reduced during the process of the rotating drum 32 rotating from the through port 311 to the screening port 331, so that the bent short section basalt fiber composite material 62 can be corrected, and the obtained short section basalt fiber composite material 62 can be straightened.

[0073] Embodiment 3:

[0074] This embodiment is based on the embodiment 2, and the difference is that in the preparation system of the short-section basalt fiber composite material provided in this embodiment, the screening module 3 further includes a pushing member 34; the pushing member 34 is slidably inserted in the guide groove 31 perpendicular to the bottom surface of the guide groove 31;

[0075] A cam portion 322 is further provided at one end of the rotating drum 32 close to the cutting module 2, and the circumferential surface of the cam portion 322 abuts against a lower end of the pushing member 34;

[0076] The rotation axis of the cam portion 322 coincides with the rotation axis of the drum 32 , and the raised sections on the circumference of the cam portion 322 correspond to the positions of the accommodating grooves 321 one by one.

[0077] Based on this, when the current short section basalt fiber composite material 62 enters the position of the through port 311 and falls into the receiving groove 321 below, the pushing member 34 pushes up, and then pushes up the front end of the next short section basalt fiber composite material 62, so that the inclination angle of the next short section basalt fiber composite material 62 is reduced, and its sliding speed is slowed down, thereby preventing the front end of the next short section basalt fiber composite material 62 from falling into the receiving groove 321, causing the rotating drum 32 to get stuck; and after the current short section basalt fiber composite material 62 is turned away, the pushing member 34 falls down to release the next short section basalt fiber composite material 62, so that the next short section basalt fiber composite material 62 can quickly fall into the through port 311 and wait for the next receiving groove 321 to pass through, thereby enabling the screening process of the slender short section basalt fiber composite material 62 to proceed in an orderly manner and avoiding the rotating drum 32 from getting stuck.

[0078] Preferably, Fig.10 As shown, the guide groove 31 is connected to the end of the abutment plate 24 away from the covering module 1 through a transition groove 4;

[0079] One end of the transition groove 4 is hinged to the guide groove 31 , and a slide groove 41 is provided at the lower part of the other end. A slide pin 241 is provided at one end of the abutment plate 24 away from the covering module 1 , and the slide pin 241 is inserted into the slide groove 41 .

[0080] Based on this, during each cutting process of the cutter 22 (the cutter 22 abuts against the continuous basalt fiber composite material 61, until the abutment plate 24 is pushed downward, until the cutter 22 cuts off the continuous basalt fiber composite material 61 directly against the abutment plate 24, until the abutment plate 24 is reset upward), the abutment plate 24 will reciprocate in the vertical direction, thereby causing the transition groove 4 to rotate around its hinge with the guide groove 31 (a small reciprocating swing), thereby giving a shaking effect to the short section of basalt fiber composite material 62 that has just entered the guide groove 31, combined with the pushing effect of the cutter 22 after cutting, so that the short section of basalt fiber composite material 62 can slide down to the position of the through opening 311 more quickly; in addition, during the rotation of the transition groove 4 around its hinge with the guide groove 31, the vibration caused by the collision with the guide groove 31 can also accelerate the sliding of the short section of basalt fiber composite material 62 in the guide groove 31, thereby avoiding congestion of multiple short sections of basalt fiber composite materials 62 in the guide groove 31.

[0081] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A system for preparing a short-length basalt fiber composite material, comprising a coating module (1), wherein the coating module (1) is used to form a coating layer on the surface of a twisted continuous basalt fiber to prepare a continuous basalt fiber composite material (61); characterized in that: It also includes a cutting module (2), wherein the cutting module (2) includes a cutter disc (21), a cutter (22), an elastic body (23) and an abutment plate (24); The cutter disc (21) is rotatably mounted on a frame (5), and the rotation axis of the cutter disc (21) is parallel to a horizontal plane. A circumferential first annular groove (211) is provided on the outer circumferential surface of the cutter disc (21), and a flexible anti-slip ring is sleeved in the first annular groove (211); The cutter (22) is adjustably mounted on the cutter disc (21), and a blade (221) of the cutter (22) is parallel to a rotation axis of the cutter disc (21); The abutment plate (24) is mounted on the frame (5) via the elastic body (23) and is located below the cutter disc (21), and the abutment plate (24) is capable of relative displacement with the frame (5) in a vertical direction; When the cutter disc (21) rotates, the first annular groove (211) can pull the continuous basalt fiber composite material (61) to pass over the abutment plate (24), and when the blade (221) rotates to abut against the continuous basalt fiber composite material (61), the blade (221) can cut the continuous basalt fiber composite material (61) to obtain the short section of basalt fiber composite material (62); It also includes a screening module (3), wherein the screening module (3) includes a guide groove (31), a rotating drum (32) and a grading screen (33); The guide groove (31) is obliquely mounted on the frame (5), the rotating drum (32) is rotatably mounted on the frame (5) and the rotating axis of the rotating drum (32) is parallel to the guide groove (31); one end of the guide groove (31) is connected to one end of the cutting module (2) for discharging the short-section basalt fiber composite material (62), and the other end is located above the rotating drum (32); A plurality of accommodating grooves (321) of a preset length are axially opened on the outer circumference of the rotating drum (32), and the end surface of the lower end of each accommodating groove (321) coincides with the first cross section of the rotating drum (32); a through opening (311) is opened on the bottom surface of the guide groove (31); The grading screen (33) is sleeved on the outside of the rotating drum (32), and a plurality of axial sieving openings (331) are provided on the lower circumferential surface of the grading screen (33), and the end surface of the lower end of each sieving opening (331) coincides with the second cross section of the rotating drum (32), and the second cross section is located on the side of the first cross section close to the cutting module (2); the length of each sieving opening (331) increases in sequence along the rotation direction of the rotating drum (32); After the short section of basalt fiber composite material (62) enters the guide groove (31), it can fall through the through opening (311) into the containing groove (321) that rotates below the through opening (311); during the process of the rotating drum (32) rotating so that the short section of basalt fiber composite material (62) passes through each of the screening openings (331) one by one, the short section of basalt fiber composite material (62) can fall out through the screening openings (331) of corresponding length; The distance between the bottom surface of the containing groove (321) and the inner wall of the grading screen (33), and the distance between the outer wall of the rotating drum (32) and the inner wall of the grading screen (33) satisfy the following relationship: D<d<2D,h<D, Wherein, D is the diameter of the short section basalt fiber composite material (62), d is the distance between the bottom surface of the containing groove (321) and the inner wall of the grading screen (33), and h is the distance between the outer wall of the rotating drum (32) and the inner wall of the grading screen (33); The axis of the rotating drum (32) is offset toward the screening opening (331).

2. A system for preparing a short-section basalt fiber composite material according to claim 1, characterized in that: The cutting module (2) further comprises an auxiliary delivery component, which is capable of pushing the continuous basalt fiber composite material (61) to continue to move forward in the traction direction of the first annular groove (211) while the blade (221) cuts the continuous basalt fiber composite material (61).

3. A system for preparing a short-section basalt fiber composite material according to claim 2, characterized in that: The auxiliary delivery assembly comprises a crank (25), a connecting rod (26) and a rocker rod (27); A first gear (28) is arranged on the rotating shaft of the cutter disc (21) and rotates synchronously with the cutter disc (21); and a second gear (29) is rotatably arranged on the frame (5) and meshes with the first gear (28); One end of the crank (25) is fixedly mounted on the second gear (29), and the other end is hinged to one end of the connecting rod (26); one end of the swing rod (27) is hinged to the frame (5), and the other end of the swing rod (27) is hinged to the midpoint of the connecting rod (26); The following relationship is satisfied between the second gear (29), the crank (25), the connecting rod (26), and the rocker rod (27): L1=L2=2L3=0.5L4, Wherein, L1 represents the length of the rocker arm (27), L2 represents the distance between the hinge point of the rocker arm (27) and the frame (5) and the rotation axis of the second gear (29), L3 represents the distance between one end of the crank (25) and the connecting rod (26) and the rotation axis of the second gear (29), and L4 represents the length of the connecting rod (26); An abutment portion (261) is provided on the other end of the connecting rod (26); when the cutter disc (21) rotates and cuts off the continuous basalt fiber composite material (61), the abutment portion (261) can move downward to abut against the continuous basalt fiber composite material (61), and push the continuous basalt fiber composite material (61) to continue to move forward in the traction direction of the first annular groove (211).

4. A system for preparing a short-section basalt fiber composite material according to claim 1, characterized in that: The cutter (22) is slidably mounted on the cutter disc (21) along the radial direction of the cutter disc (21), and a wedge-shaped portion (222) is provided on an end of the cutter (22) away from the blade (221); The cutting module (2) further comprises an adjustment disk (20), wherein the adjustment disk (20) is arranged on one side of the cutter disk (21), and a pushing portion is arranged on a side of the adjustment disk (20) close to the cutter disk (21) corresponding to the wedge-shaped portion (222); The adjustment disk (20) and the cutter disk (21) are connected via bolts, and the distance between the cutter disk (21) and the adjustment disk (20) can be adjusted by rotating the bolts.

5. The system for preparing a short-section basalt fiber composite material according to claim 1, characterized in that: The screening module (3) further comprises a pushing member (34); the pushing member (34) is slidably inserted into the guide groove (31) perpendicularly to the bottom surface of the guide groove (31); A cam portion (322) is also provided at one end of the rotating drum (32) close to the cutting module (2), and a peripheral surface of the cam portion (322) abuts against a lower end of the pushing member (34); The rotation axis of the cam portion (322) coincides with the rotation axis of the rotating drum (32), and the raised sections on the peripheral surface of the cam portion (322) correspond one-to-one to the positions of the respective accommodating grooves (321).

6. A system for preparing a short-section basalt fiber composite material according to claim 1, characterized in that: The guide groove (31) is connected to an end of the abutment plate (24) away from the covering module (1) via a transition groove (4); One end of the transition groove (4) is hinged to the guide groove (31), and a slide groove (41) is provided at the lower part of the other end. A slide pin (241) is provided at one end of the abutment plate (24) away from the covering module (1), and the slide pin (241) is inserted into the slide groove (41).

7. The system for preparing a short-section basalt fiber composite material according to claim 1, characterized in that: A derivation channel is connected one by one below each of the screening ports (331), and each of the derivation channels can derivate the short-section basalt fiber composite material (62) passing through each of the screening ports (331) to a corresponding collection bin.

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