A device for producing geotextile for construction

Abstract

The invention discloses a device for producing geotextile for construction, which relates to the technical field of geotextile for construction, and comprises a pad, a second door-type plate, a third door-type plate, a first movable plate, a second movable plate, matrix-arranged needles and a pair of driving components, wherein the second door-type plate is arranged across the pad, the third door-type plate is arranged across the second door-type plate, the first movable plate and the second movable plate are designed to be parallel to each other and are located between the second door-type plate and the third door-type plate, and the front and rear end surfaces of the first movable plate and the second movable plate are vertically slidably connected with the two vertical inner walls of the third door-type plate through sliding members; the triangular prism-shaped needles in the invention can also rotate when they are hooked and pressed vertically downward, which can not only entangle fiber filaments of different horizontal heights, but also drive the fiber filaments in a circumferential direction, thereby entangle the fiber filaments in the circumferential direction, make the fiber net stronger, and increase the strength of the produced geotextile.

Description

Technical Field

[0001] The invention relates to the technical field of building geotextiles, in particular to a production device for building geotextiles. Background Art

[0002] Geotextile is a water-permeable geosynthetic material made of synthetic fibers through needle punching or weaving. Geotextile is one of the new geosynthetics. The finished product is in the shape of cloth, generally 4-6 meters wide and 50-100 meters long. Geotextile is divided into woven geotextile and non-woven filament geotextile.

[0003] An important part of geotextile production is needle punching reinforcement. Its basic principle is to use a needle with barbs to repeatedly punch the fluffy fiber net. The barbs on the needle carry some fibers on the surface and inner layer of the fiber net through the fiber net, so that the fibers are entangled with each other during the movement. At the same time, due to the effect of friction and the up and down displacement of the fibers, the fiber net is squeezed to a certain extent, causing the fiber net to be compressed. When the needle penetrates a certain depth and then rises, the fibers break away from the barbs and remain in the fiber net in a nearly vertical state, forming a fiber bundle "pin" nailed into the fiber net, so that the compressed fiber net will no longer return to its original state, thereby reinforcing the fiber net and giving it a certain strength and stability.

[0004] From the above principle, it can be seen that during acupuncture, the fiber web is entangled on the one hand through the vertical direction and reciprocating motion of the needle and the barbed hook. The more entanglements, the stronger it is. On the other hand, the fluffy fiber web is compacted axially to increase its strength.

[0005] However, when entangled, the prior art uses the barbed hook to hook and press the fiber filaments in the vertical direction, so that the fiber filaments at different levels are chaotically entangled, but only the fiber filaments near the edge of the needle are entangled, the scope is limited, and the entanglement effect needs to be improved. When compressed, all the needles in the prior art move simultaneously and in the same direction. When the needles are inserted into a certain depth and then rise up, due to the friction between the needles and the fiber web, and the distance between the needles is relatively close, when the needles move upward, the friction force applied to the fiber web will cause the fibers at the needle position to be lifted up. If the fibers are lifted up too high for a long time, the compression effect of the fiber web will be affected. Moreover, the fiber web is relatively soft. If a part of the fiber web is lifted up too high, it is likely to affect the next acupuncture position. In more serious cases, the fiber web is always lifted up, which will affect the transmission of the fiber web. Summary of the invention

[0006] In view of the above-mentioned deficiencies in the prior art, the present invention provides a device for producing geotextiles for construction. When the triangular prism-shaped needles are hooked and pressed vertically downward, they can also rotate, which can not only entangle the fiber filaments at different horizontal heights, but also drive the fiber filaments in the circumferential direction, thereby entangling the fiber filaments in the circumferential direction, making the fiber net stronger and increasing the strength of the produced geotextile.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a construction geotextile production device, comprising a pad, a second door-shaped plate, a third door-shaped plate, a first movable plate, a second movable plate, matrix-arranged needles and a pair of driving components, the second door-shaped plate is arranged above the pad, the third door-shaped plate is arranged above the second door-shaped plate, the first movable plate and the second movable plate are designed to be parallel to each other and are located between the second door-shaped plate and the third door-shaped plate, the front and rear end surfaces of the first movable plate and the second movable plate are vertically slidably connected with the two vertical inner side walls of the third door-shaped plate through sliding members, the first door-shaped plates are respectively arranged on the pad and on both sides corresponding to the second door-shaped plate, a pair of driving components are respectively arranged on a pair of first door-shaped plates, the driving ends of the pair of driving components are reciprocating and can drive the first movable plate and the second movable plate to move toward or away from each other in the vertical direction;

[0008] The needle comprises a needle blade and a waist bar, the needle blade is in a triangular prism shape and the lower end is pointed, a barb is arranged on the edge of the needle blade, the lower end of the waist bar is connected to the upper end of the needle blade, a spiral groove is spirally designed on the waist bar, and the second door-shaped plate is evenly provided with limiting holes corresponding to the needle, and the inner side wall of the limiting hole is provided with a limiting block, the needle vertically moves through the limiting hole, and the limiting block is slidably connected with the thread groove;

[0009] The needles are divided into two types, namely, first needles and second needles. The first needles and the second needles are staggered and arranged in a matrix. The upper end of the waist rod of the first needle is rotatably connected to the bottom of the first movable plate. The upper end of the waist rod of the second needle is fixedly connected to an extension rod. The upper end of the extension rod is rotatably connected to the bottom of the second movable plate. The first movable plate is provided with a through hole corresponding to the position of the second needle. The second needle vertically moves through the through hole. The raw material of the geotextile is a fiber mesh laid by fiber filaments. The fiber mesh is conveyed on the upper surface of the pad by an external conveying roller. The lower ends of the first needle and the second needle are higher than the upper surface of the fiber mesh when they are flush. Plug holes corresponding to the needles are evenly provided on the pad. The needles can pass through the fiber mesh into the plug holes when they move vertically to the lowest point.

[0010] Preferably, each driving assembly includes a cylinder, a mounting seat and a pair of connecting plates, wherein the cylinder is fixedly connected to the upper surface of the first door profile plate, the telescopic end of the cylinder is fixedly connected to the mounting seat, one end of the pair of connecting plates is rotatably connected to the mounting seat, and the other end is rotatably connected to the edges of the first movable plate and the second movable plate respectively.

[0011] Preferably, the sliding member includes a slide groove and a slider, the slide groove is vertically opened on the vertical side wall of the third door-type plate, the slider is vertically slidably connected to the slide groove, and the slider is fixedly connected to the front and rear end surfaces of the first movable plate and the second movable plate.

[0012] Preferably, the needle blades and the waist shaft of the needle are of an integrally formed design.

[0013] Preferably, a proximity sensor is provided at the bottom of the third door profile.

[0014] The present invention provides a device for producing geotextile for construction, which has the following beneficial effects:

[0015] 1. The triangular prism-shaped needles of the present invention can rotate when they are hooked and pressed vertically downward, which can not only entangle the fibers at different levels, but also drive the fibers in the circumferential direction, thereby entangle the fibers in the circumferential direction, making the fiber net stronger and increasing the strength of the produced geotextile;

[0016] 2. The needles in the present invention are divided into a first needle and a second needle, which move in opposite directions. If the first needle lifts up a fiber web that is too high, it will be pressed down by the second needle that moves downward, which can not only improve the compression effect of the fiber web, but also avoid deformation caused by lifting it too high and affecting the needle puncture position, and also eliminate the possibility of lifting the fiber web for a long time and affecting its transmission;

[0017] 3. The driving assembly of the present invention adopts a cylinder to cooperate with a pair of rotatably connected connecting plates, so that the connecting plates drive the first movable plate and the second movable plate to move toward each other or move away from each other at the same time, driving the first needle and the second needle to move in opposite directions, with regular movement and strong synchronization. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front cross-sectional view of a device for producing geotextile for construction of the present invention;

[0019] Figure 2 For the present invention Figure 1 The enlarged view of point A in the middle;

[0020] Figure 3 It is a front view schematic diagram of the movement direction of the fiber filament when the needle of the present invention rotates downward;

[0021] Figure 4 It is a top view schematic diagram of the movement direction of the fiber filament when the needle of the present invention rotates downward;

[0022] Figure 5 It is a top view schematic diagram of the movement direction of the fiber filament when the needle is downward in the prior art;

[0023] Figure 6 It is a schematic diagram of the force when the fiber web is lifted too high in an embodiment of the present invention;

[0024] Figure 7 This is a schematic diagram of the forces when a needle in the prior art lifts up a fiber web.

[0025] In the figure: 1, pad; 2, first door plate; 3, fiber mesh; 4, socket; 5, barb; 6, spiral groove; 7, waist bar; 8, needle; 81, first needle; 82, second needle; 9, second door plate; 10, cylinder; 11, mounting seat; 12, second movable plate; 13, third door plate; 14, proximity sensor; 15, slider; 16, slide groove; 17, extension rod; 18, connecting plate; 19, first movable plate; 20, limit hole; 21, through hole; 22, limit block; 23, circumferential entanglement area. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Figure 1-Figure 7 As shown, a construction geotextile production device comprises a pad 1, a second door-shaped plate 9, a third door-shaped plate 13, a first movable plate 19, a second movable plate 12, a matrix-arranged needle 8 and a pair of driving components, wherein the second door-shaped plate 9 is arranged above the pad 1, and the third door-shaped plate 13 is arranged above the second door-shaped plate 9, the first movable plate 19 and the second movable plate 12 are designed to be parallel to each other and are located between the second door-shaped plate 9 and the third door-shaped plate 13, the front and rear end surfaces of the first movable plate 19 and the second movable plate 12 are vertically slidably connected with the two vertical inner side walls of the third door-shaped plate 13 through sliding members, the pad 1 and the second sides of the second door-shaped plate 9 are respectively arranged with a first door-shaped plate 2, a pair of driving components are respectively arranged on a pair of first door-shaped plates 2, and the driving ends of the pair of driving components are reciprocating and can drive the first movable plate 19 and the second movable plate 12 to move toward or away from each other in the vertical direction;

[0028] The needle 8 includes a needle leaf and a waist bar 7. The needle leaf is in a triangular prism shape and has a pointed lower end. A barb 5 is arranged on the edge of the needle leaf. The lower end of the waist bar 7 is connected to the upper end of the needle leaf. A spiral groove 6 is spirally designed on the waist bar 7. The second door-shaped plate 9 is evenly provided with limiting holes 20 corresponding to the needle 8. The inner side wall of the limiting hole 20 is provided with a limiting block 22. The needle 8 vertically moves through the limiting hole 20, and the limiting block 22 is slidably connected to the thread groove.

[0029] The needles 8 are divided into two types, namely the first needles 81 and the second needles 82. The first needles 81 and the second needles 82 are staggered and arranged in a matrix. The upper end of the waist rod 7 of the first needle 81 is rotatably connected to the bottom of the first movable plate 19, and the upper end of the waist rod 7 of the second needle 82 is fixedly connected with an extension rod 17. The upper end of the extension rod 17 is rotatably connected to the bottom of the second movable plate 12. The first movable plate 19 is provided with a through hole 21 corresponding to the position of the second needle 82. The second needle 82 vertically moves through the through hole 21. The raw material of the geotextile is a fiber mesh 3 made of fiber filaments. The fiber mesh 3 is conveyed on the upper surface of the pad 1 by an external conveying roller. The lower ends of the first needles 81 and the second needles 82 are higher than the upper surface of the fiber mesh 3 when they are flush. The pad 1 is evenly provided with plug holes corresponding to the needles 8. 4, the needle 8 moves vertically to the lowest point and can pass through the fiber mesh 3 to the socket 4; each driving assembly includes a cylinder 10, a mounting seat 11 and a pair of connecting plates 18, the cylinder 10 is fixedly connected to the upper surface of the first door panel 2, the telescopic end of the cylinder 10 is fixedly connected to the mounting seat 11, one end of the pair of connecting plates 18 is rotatably connected to the mounting seat 11, and the other end is rotatably connected to the edges of the first movable plate 19 and the second movable plate 12 respectively; the sliding member includes a slide groove 16 and a slider 15, the slide groove 16 is vertically opened on the vertical side wall of the third door panel 13, the slider 15 is vertically slidably connected to the slide groove 16, and the slider 15 is fixedly connected to the front and rear end surfaces of the first movable plate 19 and the second movable plate 12; the needles and waist bar 7 of the needle 8 are of an integrated design; a proximity sensor 14 is provided at the bottom of the third door panel 13.

[0030] The detailed connection means are well-known in the art. The following mainly introduces the working principle and process, which are as follows:

[0031] According to the instruction manual Figure 1-Figure 7It can be known that the raw material of the geotextile in the present invention is a fiber mesh 3 made of fiber filaments, and the fiber mesh 3 is transmitted on the upper surface of the pad 1 through an external transmission roller, and the fiber mesh 3 and the external transmission roller are both prior art. During operation, the fiber mesh 3 is slowly transmitted on the pad 1, and the driving components on the first door-type plates 2 on both sides of the pad 1 work, and the driving end of the driving component is reciprocating, and can drive the first movable plate 19 and the second movable plate 12 to move toward or away from each other in the vertical direction, or to move closer to or away from each other. The first movable plate 19 and the second movable plate 12 are located between the second door-type plate 9 and the third door-type plate 13 on the pad 1, and are parallelly designed, and are vertically slidably connected to the vertical side wall of the third door-type plate 13 through a sliding member to ensure their stability during vertical movement. Since the needles 8 arranged in the matrix are divided into two types, namely the first needles 81 and the second needles 82, the first needles 81 and the second needles 82 are staggered and arranged in the matrix, the needles 8 include needle leaves and waist bars 7, the waist bars 7 of the first needles 81 are rotatably connected to the bottom of the first movable plate 19, and the waist bars 7 of the second needles 82 are rotatably connected to the bottom of the second movable plate 12 through the extension rod 17, therefore, when the first movable plate 19 and the second movable plate 12 move toward each other in the vertical direction, the first needles 81 move upward, and the second needles 82 move upward. 2 moves downward, on the contrary, when the first movable plate 19 and the second movable plate 12 move in opposite directions, the first needle 81 moves downward, and the second needle 82 moves upward. Since the lower ends of the first needle 81 and the second needle 82 are higher than the upper surface of the fiber web 3 when they are flush, the normal transmission of the fiber web 3 is not affected. The pad 1 is evenly provided with insertion holes 4 corresponding to the needles 8. The needles 8 move vertically to the lowest point and can pass through the fiber web 3 to the insertion holes 4. Therefore, the first needle 81 and the second needle 82 can reciprocate to puncture the fiber web 3. The needles 8 here penetrate the limiting holes 20 of the second door-shaped plate 9 to ensure the stability of the vertical reciprocating motion. The second needle 82 penetrates the opening 21 of the first movable plate 19 to ensure that the second needle 82 can work normally.

[0032] In the prior art, Figure 7 As shown, due to the friction force f, the needle 8 will lift the fiber web 3. If the lifting height is small, the effect is not significant. If the lifting height is too large, it may affect the compression of the fiber web 3, the misalignment of the needle position, etc. The too large or too small here can be determined according to the height of the highest point of the needle 8 from the normal plane of the fiber web 3. If the lifting height exceeds the highest point of the needle 8, it can be considered too large. Of course, technicians can also understand the too large or too small here based on their work experience. However, in the present invention, if Figure 6As shown, since the movement directions of the first needle 81 and the second needle 82 are opposite, once the first needle 81 lifts the fiber web 3 too high upward due to the friction force f1, it will be pressed down by the friction force f2 of the second needle 82 moving downward. Conversely, if the second needle 82 lifts the fiber web 3 too high upward, it will be pressed down by the first needle 81 moving downward. In this way, not only can the fiber web 3 not be lifted up too high and become loose, thereby affecting the compression effect, but also the fiber web 3 not be lifted up too high and deformed, thereby affecting the puncture position. At the same time, the possibility of lifting the fiber web 3 for a long time and affecting its transmission is eliminated.

[0033] The needle blade of the needle 8 is in the shape of a triangular prism and has a pointed lower end. A barb 5 is arranged on the edge of the needle blade. The driving assembly can make it reciprocate in the vertical direction. For the prior art, Figure 5 As shown in the figure, the arrow direction represents the fiber entanglement direction. The barb 5 of the needle 8 only entangles the fiber near the edge of the needle 8, and the range is limited. In the present invention, since the pressure rod is spirally designed with a spiral groove 6 and is slidably connected with the limit block 22 in the limit hole 20, the upper end of the needle 8 or the extension rod 17 at the upper end of the needle 8 is rotatably connected with the first movable plate 19 and the second movable plate 12 respectively. Therefore, the needle can rotate while moving downward, such as Figure 3 and Figure 4 As shown, the direction of the arrow represents the entanglement direction of the fiber filaments. Since the needle blades of the needle 8 are triangular prism-shaped and have barbs 5, when it rotates downward, it can not only entangle the fiber filaments at different levels, but also drive the fiber filaments circumferentially to form a circumferential entanglement area 23, which is larger than the entanglement area of ​​the prior art and has a more chaotic entanglement direction, making the fiber mesh 3 stronger and increasing the strength of the produced geotextile.

[0034] Among them, a pair of driving components are symmetrically designed, each driving component includes a cylinder 10, a mounting seat 11 and a pair of connecting plates 18, the cylinder 10 is fixedly connected to the upper surface of the first door-shaped plate 2, the telescopic end of the cylinder 10 is fixedly connected to the mounting seat 11, one end of the pair of connecting plates 18 is rotatably connected to the mounting seat 11, and the other end is rotatably connected to the edges of the first movable plate 19 and the second movable plate 12. During operation, when the telescopic end of the cylinder 10 contracts, it drives the mounting seats 11 on both sides to move outward, thereby driving the connecting plate 18 to move outward at one end connected to the mounting seat 11, and the other end of the connecting plate 18 simultaneously moves close to each other, that is, moves toward each other, thereby making the first movable plate 19 and the second movable plate 12 move close to each other, that is, moves toward each other, the first movable plate 19 drives the first needle 81 to move upward, and the second movable plate 12 drives the second needle 82 to move downward, and the movement is regular and has strong synchronization.

[0035] Among them, the sliding part includes a slide groove 16 and a slider 15. The slide groove 16 is vertically opened on the vertical side wall of the third door-type panel 13. The slider 15 is vertically slidably connected to the slide groove 16. The slider 15 is fixedly connected to the front and rear end surfaces of the first movable plate 19 and the second movable plate 12 to ensure the stability of the vertical movement of the first movable plate 19 and the second movable plate 12. The slide groove 16 and the slider 15 here are designed in multiple groups to further ensure stability.

[0036] The needle blades and the waist bar 7 of the needle 8 are integrally formed to increase its service life.

[0037] Among them, a proximity sensor 14 is set at the bottom of the third door-type panel 13. The proximity sensor 14 here can be used to monitor the vertical movement distance of the second movable plate 12 each time. If it exceeds the set value, it means that the driving component is working or the connection is unstable and needs to be debugged. Technical personnel in this field can understand this.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for producing geotextile for construction, characterized in that: The invention comprises a backing plate (1), a second door-shaped plate (9), a third door-shaped plate (13), a first movable plate (19), a second movable plate (12), a matrix-arranged needle (8) and a pair of driving components, wherein the second door-shaped plate (9) is arranged above the backing plate (1), the third door-shaped plate (13) is arranged above the second door-shaped plate (9), the first movable plate (19) and the second movable plate (12) are designed to be parallel to each other and are located between the second door-shaped plate (9) and the third door-shaped plate (13), the end surfaces of the first movable plate (19) and the second movable plate (12) are vertically slidably connected to the two inner side walls of the third door-shaped plate (13) through sliding members, the first door-shaped plate (2) is respectively arranged on the backing plate (1) and on both sides corresponding to the second door-shaped plate (9), the pair of driving components are respectively arranged on the pair of first door-shaped plates (2), the driving ends of the pair of driving components are capable of reciprocating motion and can drive the first movable plate (19) and the second movable plate (12) to move toward or away from each other in the vertical direction; The needle (8) comprises a needle leaf and a waist bar (7), the needle leaf is in a triangular prism shape and the lower end is pointed, a barb (5) is arranged on the edge of the needle leaf, the lower end of the waist bar (7) is connected to the upper end of the needle leaf, a spiral groove (6) is spirally designed on the waist bar (7), and the second door-shaped plate (9) is evenly provided with limiting holes (20) corresponding to the needle leaf (8), and the inner side wall of the limiting hole (20) is provided with a limiting block (22), the needle leaf (8) vertically moves through the limiting hole (20), and the limiting block (22) is slidably connected to the thread groove; The needles (8) are divided into two types, namely, a first needle (81) and a second needle (82). The first needle (81) and the second needle (82) are designed to be staggered and arranged in a matrix. The upper end of the waist bar (7) of the first needle (81) is rotatably connected to the bottom of the first movable plate (19). The upper end of the waist bar (7) of the second needle (82) is fixedly connected to an extension rod (17). The upper end of the extension rod (17) is rotatably connected to the bottom of the second movable plate (12). The first movable plate (19) corresponds to the second needle (82). ) is provided at a position, the second needle (82) is vertically movable and penetrates the through-hole (21), the raw material of the geotextile is a fiber mesh (3) made of fiber filaments, the fiber mesh (3) is conveyed on the upper surface of the pad (1) by an external conveying roller, the lower ends of the first needle (81) and the second needle (82) are higher than the upper surface of the fiber mesh (3) when they are flush, the pad (1) is evenly provided with insertion holes (4) corresponding to the needles (8), and the needles (8) can pass through the fiber mesh (3) into the insertion holes (4) when they move vertically to the lowest point; Each driving assembly comprises a cylinder (10), a mounting seat (11) and a pair of connecting plates (18); the cylinder (10) is fixedly connected to the upper surface of the first door-shaped plate (2); the telescopic end of the cylinder (10) is fixedly connected to the mounting seat (11); one end of the pair of connecting plates (18) is rotatably connected to the mounting seat (11), and the other end is rotatably connected to the edges of the first movable plate (19) and the second movable plate (12).

2. A construction geotextile production device according to claim 1, characterized in that: The sliding member comprises a sliding groove (16) and a sliding block (14); the sliding groove (16) is vertically opened on the vertical side wall of the third door-shaped plate (13); the sliding block (14) is vertically slidably connected to the sliding groove (16); and the sliding block (14) is fixedly connected to the end surfaces of the first movable plate (19) and the second movable plate (12).

3. The device for producing geotextile for construction according to claim 1, characterized in that: The needle blades and the waist bar (7) of the needle (8) are designed to be integrally formed.

4. The device for producing geotextile for construction according to claim 1, characterized in that: A proximity sensor (14) is provided at the bottom of the third door panel (13).

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