A nonwoven fabric production spreading device

Abstract

This utility model discloses a nonwoven fabric production spreading device, including: a base, a spreading mechanism, and a turning mechanism; transmission rollers are installed at both ends of the base, and a horizontal conveyor belt is installed on the pair of transmission rollers; multiple support rollers are installed inside the base; the spreading mechanism is installed on the base and includes a support frame, a support plate is slidably mounted on the support frame, a spreading body is mounted on the support plate, a first rotating shaft and a second rotating shaft are inserted into the spreading body, and conveying rollers are installed on the first and second rotating shafts inside the spreading body; transmission shafts are installed at both ends of the support plate, and moving gears are fixed on the transmission shafts; a rack is installed on the support frame; the turning mechanism is installed on the spreading body and includes a pair of fixed shafts, a pair of rotating parts are rotatably mounted on the fixed shafts, and guide rollers are installed on each pair of rotating parts. Through related structural design, this utility model can effectively reduce the unevenness of the nonwoven fabric spreading edges, thereby effectively reducing the scrap rate.

Description

Technical Field

[0001] This utility model belongs to the field of nonwoven fabric production technology, specifically relating to a nonwoven fabric production spreading device. Background Technology

[0002] Nonwoven fabric is a type of fabric formed without spinning or weaving. It is made by arranging short or long textile fibers in an oriented or random manner to form a fiber web structure. The production process of nonwoven fabric is different from traditional weaving methods. It adopts a web-laying method, in which the fiber web output from the carding machine is cross-folded and spread out to form a multi-layer fiber web with a certain width and unit weight.

[0003] The existing nonwoven fabric spreading process mainly consists of a horizontal conveyor belt and a spreading device perpendicular to the horizontal conveyor belt. The spreading device is used to spread the fiber web back and forth. Since the spreading device is always perpendicular to the horizontal conveyor belt, when the horizontal conveyor belt moves the spread multi-layer fiber web forward, it will cause unevenness at the edges of the multi-layer fiber web. This will result in a large amount of the edge part needing to be cut after the final nonwoven fabric is formed, resulting in a high scrap rate.

[0004] Therefore, in order to address the above-mentioned technical problems, it is necessary to provide a nonwoven fabric production spreading device.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this utility model is to provide a non-woven fabric production spreading device, which can solve the problem of uneven spreading edges of existing non-woven fabric spreading devices, resulting in a high scrap rate.

[0007] To achieve the above objectives, a specific embodiment of the present invention provides a nonwoven fabric production spreading device, including: a base, a spreading mechanism, and a steering mechanism;

[0008] Both ends of the base are equipped with drive rollers, a horizontal conveyor belt is installed on a pair of drive rollers, and multiple support rollers are installed inside the base.

[0009] The paving mechanism is mounted on a base and includes a support frame. A support plate is slidably mounted on the support frame. A net laying body is mounted on the support plate. A first rotating shaft and a second rotating shaft are inserted into the net laying body. Conveying rollers are installed inside the net laying body via the first and second rotating shafts. A drive shaft is mounted at both ends of the support plate. A moving gear is fixed on the drive shaft. A rack is mounted on the support frame. The moving gear and the rack mesh with each other.

[0010] The steering mechanism is installed on the net laying body. The steering mechanism includes a pair of fixed shafts, a pair of rotating parts rotatably mounted on the fixed shafts, a guide roller mounted on each of the rotating parts, a fixed head fixed at the bottom of the rotating parts on the pair of fixed shafts, and a pair of supports fixed on the support frame. A steering push rod is threadedly connected to each support.

[0011] In one or more embodiments of this utility model, a pair of slide rails are fixed on the support frame, and a slider is slidably arranged on each of the pair of slide rails. The support plate is fixed on the pair of sliders, and the support plate slides on the support frame through the slide rails and sliders.

[0012] In one or more embodiments of this utility model, the rack is fixed on the slide rail, and the rack is fixed on the slide rail to limit the slider and prevent the slider from sliding off the slide rail.

[0013] In one or more embodiments of this utility model, a pair of guide plates are fixed on the inner wall of the web laying body above a pair of conveying rollers. The guide plates activate the guiding function, so that after the single layer of fiber falls into the web laying body, it slides between the pair of conveying rollers through the guidance of the pair of guide plates.

[0014] In one or more embodiments of this utility model, an arc-shaped slide rail is fixed on the net laying body, and a fourth gear is slidably arranged between the arc-shaped slide rail and the net laying body, and the fourth gear moves along the arc-shaped trajectory of the arc-shaped slide rail.

[0015] In one or more embodiments of this utility model, a first gear is fixed at one end of the transmission shaft near the main body of the net laying. The first gear and the fourth gear mesh with each other. The arc axis of the arc slide rail is the same as the axis of the first gear. When the first gear rotates, it drives the fourth gear to rotate. Because the arc axis of the arc slide rail is the same as the axis of the first gear, the fourth gear and the first gear are always in a meshing state when the fourth gear moves along the arc trajectory of the arc slide rail.

[0016] In one or more embodiments of this utility model, the first rotating shaft is fixed with a second gear at both ends outside the main body of the netting, and the second rotating shaft is fixed with a third gear at both ends outside the main body of the netting. The second gear and the third gear mesh with each other, and when either the second gear or the third gear rotates, it will drive the other gear to rotate.

[0017] In one or more embodiments of this utility model, the fourth gear can mesh with both the second and third gears. When the fourth gear slides to both ends of the arc-shaped slide rail, it meshes with the second and third gears respectively. The rotation of the fourth gear drives the second or third gear to rotate.

[0018] In one or more embodiments of this utility model, a locking head is installed on the side wall of the pair of rotating parts near the fixed head, and a plurality of slots adapted to the locking head are drilled on the pair of fixed heads. The locking head is engaged with the slot, thereby preventing the rotating parts from rotating without the action of external force.

[0019] In one or more embodiments of this utility model, a spring is installed between the card head and the inner wall of the rotating part, and the spring force is used to push the card head into the card slot.

[0020] Compared with existing technologies, this utility model can effectively reduce the problem of uneven edges of non-woven fabric through relevant structural design, thereby effectively reducing the scrap rate. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a perspective view of a nonwoven fabric production and spreading device according to one embodiment of the present invention;

[0023] Figure 2 This is a perspective view of a nonwoven fabric production and spreading device according to one embodiment of the present invention.

[0024] Figure 3 This is a schematic diagram of the paving mechanism in one embodiment of the present invention;

[0025] Figure 4 This is a cross-sectional view of the net-laying body in one embodiment of the present utility model;

[0026] Figure 5 This is a schematic diagram of the structure of the support plate and the netting body in one embodiment of the present invention;

[0027] Figure 6 for Figure 5 The structural diagram shown at point A in the middle;

[0028] Figure 7 for Figure 5 The structural diagram shown at point B in the middle;

[0029] Figure 8 This is a schematic diagram of the arc-shaped slide rail and the fourth gear in one embodiment of the present invention;

[0030] Figure 9 This is a bottom perspective view of the rotating component in one embodiment of the present invention.

[0031] Explanation of key figure labels:

[0032] 1-Base, 101-Drive roller, 102-Horizontal conveyor belt, 103-Support roller, 2-Paving mechanism, 201-Support frame, 202-Slide rail, 203-Slider, 204-Support plate, 205-Paving body, 206-Rack, 207-Drive shaft, 208-Moving gear, 209-First gear, 210-Second gear, 211-Third gear, 212-Arc-shaped slide rail, 213-Fourth gear, 214-First rotating shaft, 215-Second rotating shaft, 216-Conveying roller, 217-Guide plate, 3-Steering mechanism, 301-Fixed shaft, 302-Rotating component, 303-Guide roller, 304-Connecting arm, 305-Fixed head, 306-Clipper, 307-Clipper groove, 308-Spring, 309-Support, 310-Steering push rod. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0034] like Figures 1 to 9 As shown, a nonwoven fabric production spreading device in one embodiment of the present invention includes: a base 1, a spreading mechanism 2, and a turning mechanism 3.

[0035] like Figures 1 to 2 As shown, both ends of the base 1 are equipped with drive rollers 101, and a horizontal conveyor belt 102 is installed on a pair of drive rollers 101. Multiple support rollers 103 are installed inside the base 1. The drive rollers 101 drive the horizontal conveyor belt 102 to move, and the horizontal conveyor belt 102 drives the laid multi-layer fiber to move. The support rollers 103 play an auxiliary support role.

[0036] like Figures 2 to 8As shown, the paving mechanism 2 is mounted on the base 1. The paving mechanism 2 includes a support frame 201, on which a support plate 204 is slidably mounted. A web-laying body 205 is mounted on the support plate 204. The support plate 204 drives the web-laying body 205 to reciprocate, and the web-laying body 205 lays a single layer of fiber on the horizontal conveyor belt 102. A first rotating shaft 214 and a second rotating shaft 215 are inserted into the web-laying body 205. A conveying roller 216 is installed inside the web-laying body 205, and the conveying roller 216 is used to convey the single layer of fiber downward. Both ends of the support plate 204 are equipped with drive shafts 207, and a movable gear 208 is fixed on the drive shaft 207. A rack 206 is installed on the support frame 201. The movable gear 208 and the rack 206 mesh with each other. The drive shaft 207 needs an external drive device to drive it to reciprocate. The drive shaft 207 drives the movable gear 208 to reciprocate. The movable gear 208 realizes the reciprocating movement of the support plate 204 on the support frame 201 through the rack 206, thereby realizing the reciprocating laying of a single layer of fiber.

[0037] like Figures 2 to 8 As shown, a pair of slide rails 202 are fixed on the support frame 201, and sliders 203 are slidably mounted on each of the slide rails 202. A support plate 204 is fixed to the pair of sliders 203. The support plate 204 slides on the support frame 201 through the slide rails 202 and the sliders 203. A rack 206 is fixed to the slide rails 202 to limit the sliders 203 and prevent them from sliding off the slide rails 202. A pair of guide plates 217 are fixed on the inner wall of the web laying body 205 above a pair of conveying rollers 216. The guide plates 217 activate the guiding function, allowing the single layer of fibers to fall into the web laying body 205 and then slide between the pair of conveying rollers 216 under the guidance of the guide plates 217.

[0038] like Figures 2 to 8 As shown, an arc-shaped slide rail 212 is fixed on the web laying body 205. A fourth gear 213 is slidably arranged between the arc-shaped slide rail 212 and the web laying body 205. The fourth gear 213 moves along the arc-shaped trajectory of the arc-shaped slide rail 212. A first gear 209 is fixed at one end of the drive shaft 207 near the web laying body 205. The first gear 209 and the fourth gear 213 mesh with each other. The arc axis of the arc-shaped slide rail 212 and the axis of the first gear 209 are the same axis. When the first gear 209 rotates, it drives the fourth gear 213 to rotate. Because the arc axis of the arc-shaped slide rail 212 and the axis of the first gear 209 are the same axis, the fourth gear 213 and the first gear 209 are always in a meshing state when the fourth gear 213 moves along the arc-shaped trajectory of the arc-shaped slide rail 212.

[0039] like Figures 2 to 8As shown, the first rotating shaft 214 has a second gear 210 fixed at both ends outside the web laying body 205, and the second rotating shaft 215 has a third gear 211 fixed at both ends outside the web laying body 205. The second gear 210 and the third gear 211 mesh with each other, and when either the second gear 210 or the third gear 211 rotates, it will drive the other to rotate. The fourth gear 213 can mesh with both the second gear 210 and the third gear 211. When the fourth gear 213 slides to both ends of the arc-shaped slide rail 212, it meshes with the second gear 210 and the third gear 211 respectively. The rotation of the fourth gear 213 drives the second gear 210 or the third gear 211 to rotate.

[0040] like Figure 6 As shown, when the drive shaft 207 drives the first gear 209 to rotate clockwise, the drive shaft 207 simultaneously drives the fourth gear 213 to rotate, and at the same time, moves the fourth gear 213 along the trajectory of the arc-shaped slide rail 212 to the end of the arc-shaped slide rail 212 near the third gear 211, so that the fourth gear 213 and the third gear 211 mesh with each other. At this time, the first gear 209 rotates clockwise, driving the fourth gear 213 to rotate counterclockwise, and the fourth gear 213 drives the third gear 211 to rotate clockwise. The third gear 211 simultaneously drives the second gear 210 to rotate counterclockwise. The third gear 211 and the second gear 210 convey the single layer of fiber downward through the conveyor roller 216. When the drive shaft 207 drives the first gear 209 to rotate counterclockwise, the first gear 209 drives the fourth gear 213 to rotate simultaneously, and at the same time, it drives the fourth gear 213 along the trajectory of the arc-shaped slide rail 212 to the end of the arc-shaped slide rail 212 close to the second gear 210, so that the fourth gear 213 and the second gear 210 mesh with each other. At this time, the first gear 209 drives the second gear 210 to rotate counterclockwise through the fourth gear 213, and the second gear 210 drives the third gear 211 to rotate clockwise. Therefore, no matter whether the drive shaft 207 drives the first gear 209 to rotate clockwise or counterclockwise, the second gear 210 always rotates counterclockwise, and the third gear 211 always rotates clockwise.

[0041] like Figures 3 to 9As shown, the steering mechanism 3 is installed on the web laying body 205. The steering mechanism 3 includes a pair of fixed shafts 301, and a pair of rotating parts 302 are rotatably mounted on the fixed shafts 301. Guide rollers 303 are installed on each of the rotating parts 302. Fixed heads 305 are fixed at the bottom of the rotating parts 302 on the pair of fixed shafts 301. A pair of supports 309 are fixed on the support frame 201. Steering push rods 310 are threadedly connected to each support 309. The pair of rotating parts 302 rotate synchronously through a pair of connecting arms 304. The pair of rotating parts 302 are used to change the angle when laying a single layer of fiber. The pair of steering push rods 310 are used to switch the rotation angle of the rotating parts 302 back and forth when the web laying body 205 is reciprocating.

[0042] like Figures 3 to 9 As shown, each of the pair of rotating members 302 has a locking head 306 mounted on its side wall near the fixed head 305. Each of the fixed heads 305 has multiple slots 307 that fit the locking heads 306. The locking heads 306 engage with the slots 307 to prevent the rotating members 302 from rotating without external force. A spring 308 is installed between the locking head 306 and the inner wall of the rotating member 302. The spring force of the spring 308 pushes the locking head 306 into the slot 307.

[0043] Working principle: When using this device, a pair of drive shafts 207 need to be driven by an external drive device to rotate. Then, the drive device drives the drive roller 101 to rotate, and the drive roller 101 drives the horizontal conveyor belt 102 to rotate. First, the bottom layer of single-layer fiber is laid flat on the horizontal conveyor belt 102 and moved by the horizontal conveyor belt 102. Then, the single-layer fiber used for laying is inserted into the web laying body 205, passing between a pair of conveyor rollers 216, and then passing through the middle of a pair of guide rollers 303, and is laid on the horizontal conveyor belt 102. Then, the drive device connected to the pair of drive shafts 207 is started to drive the drive shafts 207 to reciprocate. The drive shafts 207 drive the moving gear 208 to reciprocate. The moving gear 208 drives the support plate 204 and the web laying body 205 to reciprocate on the support frame 201 through the rack 206 to carry out the laying work.

[0044] As the drive shaft 207 rotates, it drives the first gear 209 to rotate as well. Figure 6As shown, when the drive shaft 207 drives the first gear 209 to rotate clockwise, the drive shaft 207 simultaneously drives the fourth gear 213 to rotate, and at the same time, moves the fourth gear 213 along the trajectory of the arc-shaped slide rail 212 to the end of the arc-shaped slide rail 212 near the third gear 211, so that the fourth gear 213 and the third gear 211 mesh with each other. At this time, the first gear 209 rotates clockwise, driving the fourth gear 213 to rotate counterclockwise, and the fourth gear 213 drives the third gear 211 to rotate clockwise. The third gear 211 simultaneously drives the second gear 210 to rotate counterclockwise. When the drive shaft 207 drives the first gear 209 to rotate counterclockwise, the first gear 209 drives the fourth gear 210 to rotate counterclockwise. As gear 213 rotates, it drives the fourth gear 213 along the trajectory of the arc-shaped slide rail 212 to the end of the arc-shaped slide rail 212 close to the second gear 210, so that the fourth gear 213 and the second gear 210 mesh with each other. At this time, the first gear 209 drives the second gear 210 to rotate counterclockwise through the fourth gear 213, and the second gear 210 drives the third gear 211 to rotate clockwise. Therefore, no matter whether the drive shaft 207 drives the first gear 209 to rotate clockwise or counterclockwise, the second gear 210 always rotates counterclockwise, and the third gear 211 always rotates clockwise. The third gear 211 and the second gear 210 always convey the single layer of fiber downward through the conveyor roller 216.

[0045] When the net laying body 205 is reciprocating, the rotation angle of the rotating component 302 is adjusted by rotating the steering push rod 310. The tilt angle of the single layer of fiber when it falls is adjusted by the rotating component 302. After the net laying body 205 lays the single layer of fiber to the edge of the horizontal conveyor belt 102, the rotating component 302 is turned by the steering push rod 310. The rotating component 302 drives the single layer of fiber to turn. When the rotating component 302 drives the single layer of fiber to turn, the corner of the single layer of fiber is pulled inward to prevent unevenness at the edge of the laid multi-layer fiber.

[0046] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0047] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A nonwoven fabric production spreading device, characterized in that, include: A base, with drive rollers installed at both ends of the base, a horizontal conveyor belt installed on a pair of drive rollers, and multiple support rollers installed inside the base; A paving mechanism is mounted on a base. The paving mechanism includes a support frame, a support plate slidably mounted on the support frame, a net laying body mounted on the support plate, a first rotating shaft and a second rotating shaft inserted into the net laying body, and conveying rollers mounted inside the first and second rotating shafts. A drive shaft is mounted at both ends of the support plate, and a moving gear is fixed on the drive shaft. A rack is mounted on the support frame, and the moving gear and the rack mesh with each other. A steering mechanism is installed on the net laying body. The steering mechanism includes a pair of fixed shafts, a pair of rotating parts rotatably mounted on the fixed shafts, a guide roller mounted on each of the rotating parts, a fixed head fixed at the bottom of the rotating parts on the pair of fixed shafts, and a pair of supports fixed on the support frame. A steering push rod is threadedly connected to each support.

2. The nonwoven fabric production laying device according to claim 1, wherein A pair of slide rails are fixed on the support frame, and a slider is slidably mounted on each of the slide rails. The support plate is fixed on the pair of sliders.

3. The apparatus according to claim 2, wherein The rack is fixed to the slide rail.

4. The nonwoven fabric production spreading device according to claim 1, wherein A pair of guide plates are fixed on the inner wall of the net laying body above a pair of conveying rollers.

5. The nonwoven fabric production spreading device according to claim 1, wherein An arc-shaped slide rail is fixed on the main body of the net laying, and a fourth gear is slidably arranged between the arc-shaped slide rail and the main body of the net laying.

6. A nonwoven fabric production laying device according to claim 5, wherein The first gear is fixed at one end of the drive shaft near the main body of the net laying. The first gear and the fourth gear mesh with each other. The arc axis of the arc-shaped slide rail is the same as the axis of the first gear.

7. A nonwoven fabric production laying device according to claim 6, characterized in that The first rotating shaft has a second gear fixed at both ends outside the main body of the net laying, and the second rotating shaft has a third gear fixed at both ends outside the main body of the net laying, and the second gear and the third gear mesh with each other.

8. The nonwoven fabric production laying device according to claim 7, wherein The fourth gear can mesh with both the second and third gears.

9. The apparatus according to claim 1, wherein Each pair of rotating parts is equipped with a locking head near the side wall of the fixed head, and each pair of fixed heads is provided with multiple slots that are adapted to the locking heads.

10. The apparatus according to claim 9, wherein A spring is installed between the chuck and the inner wall of the rotating part.

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