Needling equipment with mesh belt mesh feeding mechanism

Abstract

The invention discloses needling equipment with a mesh belt mesh feeding mechanism. The needling equipment comprises the mesh belt mesh feeding mechanism and a needling mechanism. The mesh belt mesh conveying mechanism comprises two conveying meshes which are arranged up and down at an interval, and a fiber mesh is conveyed between the two conveying meshes; the up-down conveying net is composed of a plurality of net belts which are sequentially arranged in parallel, and gaps allowing needles of the needling mechanism to penetrate through are formed between the adjacent net belts. The mesh belt mesh conveying mechanism is adopted to replace a common mesh pressing roller, a mesh stripping plate and a mesh supporting plate, the phenomenon that a fluffy fiber mesh is blocked when entering a needling area due to the fact that the fiber mesh rebounds due to the fact that gaps exist between the mesh pressing roller and the mesh stripping plate as well as between the mesh pressing roller and the mesh supporting plate can be avoided, the fiber mesh is clamped and synchronously conveyed between the upper conveying mesh and the lower conveying mesh, and the needling efficiency is improved. The efficiency of the needling equipment can be greatly improved, and the process speed limitation of the traditional needling equipment is broken through.

Description

Technical Field

[0001] The invention relates to the technical field of nonwoven fabric production equipment, in particular to a needle punching device with a net belt feeding mechanism. Background Art

[0002] Needle-punched nonwoven fabrics are made by piercing the fiber web with needles of a needle punching device. At the same time, the barbed hooks on the needles will cause the fiber displacement movement on the surface and sub-surface of the fiber web, so that the fibers are intertwined with each other to form a nonwoven product with certain strength, density and elasticity. This processing method can improve the performance of the fiber web, improve its physical properties such as strength, density and elasticity, and make it have better performance. Needle punching machines are widely used in the production of various nonwoven materials, such as geotextiles, filter materials, insulation materials, decorative materials, etc.

[0003] like Figure 1 and Figure 2 As shown, the web feeding mechanism in the traditional needling equipment A uses a web pressing roller d to compress the highly fluffy fiber web 1 with low fiber cohesion and feed it between the web stripping plate b and the web support plate c for needling reinforcement. The needle plate a moves up and down, and the needle f pierces the fiber web 1. The web stripping plate b and the web support plate c both have holes i corresponding to the positions of the needles so that the needles f can pass through, and then they are pulled out by the drafting roller g to complete the needling process. Since there is still a distance between the web pressing roller d and the web stripping plate b and the web support plate c, the fed fiber web 1 is first compressed by the web pressing roller d, but due to the elasticity of the fiber itself, after leaving the web pressing roller d, it will still return to a fairly fluffy state and cause congestion. At this time, the fiber web 1 is blocked at the entrance of the web stripping plate and the web support plate, and the upper and lower surfaces of the fiber have speed differences, and sometimes creases are produced on the fiber web 1, affecting the quality of the needle-punched non-woven fabric. In addition, in the needling area, the needle f needs to pierce into the fiber web through the holes i on the stripping plate b and the supporting plate c. The needle f needs to move up and down. The forward transmission speed of the fiber web 1 is greatly affected by the frequency of the up and down movement of the needle f. Therefore, the process line speed of traditional needling equipment is only 5m / min-30m / min, and the production efficiency is low. In addition, the holes i on the stripping plate b and the supporting plate c need to correspond to the position of the needle f, and the processing accuracy requirements are also high. Summary of the invention

[0004] The object of the present invention is to provide a needle punching device with a net belt feeding mechanism, which can reduce the influence of the net feeding mechanism on the quality of needle punched non-woven fabrics and has the advantages of high process speed and high production efficiency.

[0005] In order to achieve the above object, the solution of the present invention is: A kind of acupuncture equipment with a net belt feeding mechanism, It includes a net belt feeding mechanism and a needle punching mechanism; The mesh belt feeding mechanism comprises two conveying nets spaced apart from each other, and the space between the two conveying nets is used to convey the fiber net; the conveying net comprises a plurality of mesh belts arranged in parallel, and there is a gap between adjacent mesh belts for the needles of the acupuncture mechanism to pass through; the conveying nets are respectively controlled by corresponding circulating transmission mechanisms to clamp the fiber net and transport it forward; The needling mechanism is arranged at least on one side of the mesh belt feeding mechanism, and includes at least one needle plate, on which a plurality of needles are protruded at intervals; the needle plate of the needling mechanism moves up and down, and the needles on the needle plate pass through the gaps between adjacent mesh belts and pierce into the fiber mesh in the upper and lower conveying nets.

[0006] Furthermore, the width of the mesh belt is 0.5 mm to 2 mm.

[0007] Furthermore, the gap between adjacent mesh belts is 0.1 mm to 10 mm.

[0008] Furthermore, the acupuncture mechanism includes at least two needle plates, each needle plate is arranged parallel to each other, and each needle plate is arranged on the same side of the mesh belt feeding mechanism or is respectively arranged on both sides of the mesh belt feeding mechanism.

[0009] Furthermore, the arrangement of the needles on the needle plate corresponds to the arrangement of the gaps between the mesh belts, and the needles are respectively located in the gaps between the mesh belts.

[0010] Furthermore, the needle shape of the needle is a triangular needle, a quadrangular needle, a fork-shaped needle or a crown-shaped needle.

[0011] After adopting the above technical scheme, compared with the traditional needling equipment, the present invention adopts a mesh belt feeding mechanism to replace the commonly used mesh pressing roller, mesh stripping plate and mesh supporting plate, which can avoid the congestion of the fluffy fiber web when entering the needling area due to the spacing between the mesh pressing roller and the mesh stripping plate and the mesh supporting plate, and the rebound of the fiber web; the upper and lower conveying nets in the mesh belt feeding mechanism are a plurality of mesh belts, and during needling, the needle passes through the gap between adjacent mesh belts and pierces the fiber web in the upper and lower conveying nets, and a certain compression force is generated during puncture, causing the fibers in the fiber web to be displaced and brought together, and the lower conveying net plays the role of supporting the fiber web, and during the return journey, the needle will move with the fiber web due to the existence of friction, and the upper conveying net is used to block the fiber web, so that the needle can smoothly pass through the fiber web. Exit, the upper conveyor net plays the role of stripping the fiber web, and the upper and lower conveyor nets only need a few mesh belts to form, which greatly reduces the processing accuracy; at the same time, the upper and lower conveyor nets in the mesh belt feeding mechanism of this embodiment are controlled by the circulating transmission mechanism to clamp the fiber web and transmit it forward synchronously, which can effectively avoid the fiber web being pulled out from the gap between the stripping plate and the dragging plate through the drafting roller in the traditional needling equipment, which is prone to the phenomenon of fiber web breakage or uneven mesh surface due to stretching, and the needles can pierce arbitrarily in the mesh belt gap of the upper and lower conveyor nets, without being restricted by the holes on the traditional stripping plate and the mesh supporting plate, reducing the risk of needle breakage, and the fiber web is clamped and transmitted synchronously in the upper and lower conveyor nets, which can greatly improve the efficiency of the needling equipment and break through the process speed limitations of traditional needling equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a front view schematic diagram of a traditional acupuncture device; Figure 2 A top view of a stripping plate or a supporting plate; Figure 3 It is a front view schematic diagram of embodiment 1 of the present invention; Figure 4 It is a top view schematic diagram of the conveying network of Example 1 of the present invention; Figure 5 It is a front view schematic diagram of embodiment 2 of the present invention; Figure 6 It is a schematic top view of the conveying network of Example 2 of the present invention.

[0013] Description of labels: Traditional needling equipment A, needle plate a, stripping plate b, support plate c, pressing roller d, needle f, drafting roller g, mesh i, fiber web 1; This embodiment: Mesh belt feeding mechanism 10, conveying net 11, mesh belt 111, gap n, mesh belt width o, needling mechanism 20, needle plate 21, needles 211; fiber net 30, combing net curtain 40. DETAILED DESCRIPTION

[0014] In order to further explain the technical solution of the present invention, the present invention is described in detail below through specific embodiments.

[0015] Example 1 like Figure 3 to Figure 4 As shown, the present invention discloses a fiber web needling device, the structure of which is as follows: comprising a web belt feeding mechanism 10 and a needling mechanism 20; The mesh belt feeding mechanism 10 includes two conveying nets 11 spaced apart from each other, and the space between the two conveying nets 11 is used to convey the fiber net 30; the conveying net 11 is composed of a plurality of mesh belts 111 arranged in parallel, and there is a gap n between adjacent mesh belts 111 for the needles 211 of the acupuncture mechanism 20 to pass through, wherein: the width m of the mesh belt 111 can be 0.5-2 mm, and the width of the mesh belt 111 in this embodiment is 0.5 mm, and the gap n between the adjacent mesh belts 111 can be 0.1-10 mm, and the gap n in this embodiment is 1.5 mm. The mesh belt 111 can be made of metal or non-metal materials with a certain tensile strength, such as polyurethane elastomer, spandex elastomer, nylon, silicone, etc.

[0016] The acupuncture mechanism 20 is arranged on one side of the mesh belt feeding mechanism 10, and includes a needle plate 21. A plurality of needles 211 are protruded at intervals on the needle plate 21. The needles 211 can be triangular needles, quadrilateral needles, fork-shaped needles or crown-shaped needles, etc. The needles 211 on the needle plate 21 are arranged corresponding to the gap n of each mesh belt, and each needle 211 is respectively located at the gap n of each mesh belt.

[0017] During operation, the fiber web 30 can enter the mesh belt feeding mechanism 10 through the combing mesh curtain 40, and the two conveying nets 11 are respectively controlled by corresponding circulating transmission mechanisms to clamp the fiber web 30 and transmit it forward; the needle plate 21 of the needling mechanism 20 moves up and down, and the needles 211 on the needle plate 21 pass through the gap n between adjacent mesh belts 111 and pierce the fiber web 30 in the conveying net 11, and then the two conveying nets 11 are respectively controlled by corresponding circulating transmission mechanisms to peel off and output the fiber web 30 after needle punching, and then output it through another combing mesh curtain 40.

[0018] In this embodiment, the conveying net 11 in the net belt feeding mechanism 10 includes a plurality of net belts 111. The net belt feeding mechanism 10 can compress the fluffy fiber net 30, which overcomes the existing gap between the pressing roller and the stripping plate and the supporting plate. The fiber net rebounds after leaving the pressing roller, causing the fiber net congestion when entering the needling area, which compresses the fiber net and smoothly feeds it into the needling mechanism 20. At the same time, the net belts 111 in the conveying net 11 clamp the fiber net 30 and synchronously enter the needling area, playing the role of the stripping plate, the supporting plate and the fiber net stretching roller.

[0019] During the needling process of the present embodiment, the needle 211 passes through the gap n between adjacent mesh belts 111 and pierces the fiber mesh 30 in the conveying net 11. During the piercing, a certain compression force is generated, causing the fibers in the fiber mesh 30 to be displaced and brought together. The lower conveying net 11 plays the role of supporting the fiber mesh. During the return journey, due to the existence of friction, the needle 211 will move with the fiber mesh 30, and the upper conveying net 11 is used to block the fiber mesh 30, so that the needle 211 can smoothly withdraw from the fiber mesh 30. The upper conveying net 11 plays the role of stripping the fiber mesh, and the upper and lower conveying nets 11 only need a few mesh belts 111 to be composed, which greatly reduces the processing accuracy, and the needle 211 can arbitrarily pierce in the gap n of the mesh belt 111, without being restricted by the holes on the traditional stripping plate and the supporting plate, reducing the risk of needle breakage, and at the same time, the fiber mesh 30 is clamped and transmitted synchronously in the conveying net 11, which can greatly improve the efficiency of the needling equipment and break through the process speed limitations of traditional needling equipment.

[0020] Example 2 like Figure 5 and 6 As shown, the structure of this embodiment is basically the same as that of the above-mentioned embodiment 1, and the main difference is that the acupuncture mechanism 20 includes a plurality of needle plates 21, and three needle plates 21 can be arranged in parallel on the upper side of the mesh belt feeding mechanism 10, and three needle plates 21 can also be arranged in parallel on the lower side of the mesh belt feeding mechanism 10. During operation, each needle 211 pierces the fiber web 30 from the gap n of the mesh belt 111 of the upper conveying net 11, and at the same time, the lower needle 211 pierces the fiber web 30 from the gap n of the mesh belt 111 of the lower conveying net 11. The fiber web 30 is punctured multiple times from the upper and lower sides by the acupuncture mechanism 20, which can improve the puncture efficiency and the uniformity of acupuncture, and the formed needle-punched non-woven fabric has a uniform mesh surface and good mechanical properties. In addition, the size of the gap n between adjacent mesh belts 111 in the mesh belt feeding mechanism 10 can be designed according to the requirements of the mesh surface, and can be the same or different. In this embodiment, the gap n between adjacent mesh belts 111 is different, and the width o of each mesh belt 111 can also be the same or different, and can be designed according to needs.

[0021] The above description is only a preferred implementation mode of the present invention. The protection scope of the present invention is not limited to the above embodiment. All technical solutions under the idea of ​​the present invention belong to the protection scope of the present invention.

Claims

1. A needling device with a net belt feeding mechanism, characterized in that: It includes a net belt feeding mechanism and a needle punching mechanism; The mesh belt feeding mechanism comprises two conveying nets spaced apart from each other, and the space between the two conveying nets is used to convey the fiber net; the conveying net comprises a plurality of mesh belts arranged in parallel, and there is a gap between adjacent mesh belts for the needles of the acupuncture mechanism to pass through; the conveying nets are respectively controlled by corresponding circulating transmission mechanisms to clamp the fiber net and transport it forward; The needling mechanism is arranged at least on one side of the mesh belt feeding mechanism, and includes at least one needle plate, on which a plurality of needles are protruded at intervals; the needle plate of the needling mechanism moves up and down, and the needles on the needle plate pass through the gaps between adjacent mesh belts and pierce into the fiber mesh in the upper and lower conveying nets.

2. The acupuncture device with a net belt feeding mechanism according to claim 1, characterized in that: The width of the mesh belt is 0.5 mm to 2 mm.

3. The acupuncture device with a net belt feeding mechanism according to claim 1, characterized in that: The gap between adjacent mesh belts is 0.1 mm to 10 mm.

4. The acupuncture device with a net belt feeding mechanism according to claim 1, characterized in that: The acupuncture mechanism comprises at least two needle plates, each of which is arranged parallel to each other, and each of which is arranged on the same side of the mesh belt feeding mechanism or on both sides of the mesh belt feeding mechanism.

5. The acupuncture device with a net belt feeding mechanism according to claim 1, characterized in that: The arrangement of the needles on the needle plate corresponds to the arrangement of the gaps between the mesh belts, and the needles are respectively located at the gaps between the mesh belts.

6. The acupuncture device with a net belt feeding mechanism according to claim 1, characterized in that: The needle shape of the needle is a triangular needle, a quadrangular needle, a fork-shaped needle or a crown-shaped needle.

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