A composite coated weeding roller with metal needle cloth
By designing the needle teeth and applying the coating to the composite coated weeding roller metal needle cloth, the problems of uneven needle tooth arrangement and fiber damage during the combing process are solved, achieving efficient separation of grass clippings and hair and fiber protection, and adapting to the combing needs of different fibers.
Patent Information
- Application Number
- CN202522063347.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-24
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-09-24
AI Technical Summary
Existing metal card cloths are prone to reduced needle alignment, needle collapse, or deformation during the combing process, resulting in weakened fiber holding and combing ability, inability to effectively remove grass clippings and separate hair, and difficulty in adapting to the combing needs of different fibers.
The composite-coated weeding roller metal needle cloth is used. By changing the needle tooth spacing layout to a large flat-top structure with equal or unequal spacing, combined with the composite coating treatment, the connection method of the tooth root, tooth front, tooth back and tooth top of the tooth component is designed to enhance the structural strength and filtration capacity of the needle cloth and adapt to the needs of different combing machines.
It improves the ability to separate fibers from grass and impurities, reduces fiber damage, solves the problems of impurity embedding and removal in card cloth, enhances the wear resistance and smoothness of card cloth, and meets the diverse needs of textile production.
Smart Images
Figure CN224942768U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of textile equipment technology, specifically to a composite coated weed-removing roller metal needle cloth. Background Technology
[0002] Metal card cloth is a core functional component of carding equipment such as carding machines and wool carding machines in the textile industry. It is usually based on a high-precision thin steel plate, and its surface is processed according to a specific process and uniformly arranged with metal needles with sharp edges, specific cross-sectional shapes (such as triangles and trapezoids) and arrangement density. It is used to deeply card raw materials such as blocky and bundled raw cotton, wool, and chemical fibers, breaking the fibers into single fibers. At the same time, it efficiently removes impurities, short fibers and defects from the raw materials, and achieves uniform mixing of different types of fibers, providing clean, uniform and high-quality fiber raw materials for subsequent spinning processes such as drawing, roving, and spinning.
[0003] Existing carding cloths tend to have misaligned needles during actual carding operations. Over long periods of fiber gripping and combing, the needles are prone to uneven force or wear, resulting in decreased alignment, some needles falling over, or deformation. This significantly weakens the ability to hold and comb the fibers. Furthermore, the separation of grass clippings and wool is insufficient. When dealing with wool raw materials containing impurities, it cannot effectively remove fine grass clippings, dead leaves, and other impurities attached to the wool fibers, leaving the combed wool still carrying a significant amount of impurities. This can easily damage the wool fibers during the combing process. Moreover, when switching between combing fine wool, coarse wool, or blended fibers, it cannot adapt to the different fiber thicknesses, elasticities, and impurity characteristics, resulting in either insufficient combing or fiber damage, making it difficult to meet the diverse needs of textile production. Utility Model Content
[0004] The purpose of this utility model is to provide a composite coated weeding roller metal needle cloth to solve the above problems.
[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution, including:
[0006] The base and the toothed portion disposed on the end face of the base.
[0007] The needle-tooth portion includes a plurality of toothed components arranged along the length direction of the base. The plurality of toothed components are alternately connected to form a strip-shaped needle cloth structure, so that the fibers are dispersed and slid out on the needle-tooth portion during the combing process.
[0008] The tooth component includes a tooth root portion, which extends and connects to the base.
[0009] The tooth root has a tooth front and a tooth back facing each other. The bottom of the tooth front of a group of tooth components is connected to the bottom of the tooth back of an adjacent tooth component through an arc transition. The top of the tooth front of a group of tooth components is connected to the tooth back of an adjacent tooth component through a tooth tip extension. The tooth front and the tooth tip meet to form an inclined tooth tip.
[0010] As a further description of the above technical solution, the toothed components are spaced at equal or unequal distances, and the toothed components are arranged in a parallel or self-locking configuration.
[0011] As a further description of the above technical solution, the distance between adjacent toothed components is 1.30-6.00 mm.
[0012] As a further description of the above technical solution, the extension length of the tooth tip is 0.50-7.20 mm.
[0013] As a further description of the above technical solution, the tooth tip is parallel to the base, and the longitudinal width of the tooth tip is 0.15-0.50 mm.
[0014] As a further description of the above technical solution, the height from the top end face of the tooth tip to the bottom end face of the tooth root is 3.00-6.00mm.
[0015] As a further description of the above technical solution, the forward tilt angle of the front part of the tooth is 20-50°.
[0016] As a further description of the above technical solution, the width of the base portion is 0.70-4.20 mm.
[0017] As a further description of the above technical solution, the pitch of the base portion is 0.70-4.20 mm.
[0018] As a further description of the above technical solution, a composite coating is provided on the base and the outer layer of the needle teeth; or
[0019] The outer layer of the needle teeth is provided with a composite coating; or
[0020] The outer layer of the tooth tip is provided with a composite coating.
[0021] The beneficial effects of this utility model are as follows:
[0022] 1. This utility model, by changing the layout of the spacing between the needle cloth teeth, adopts a large flat-top structure with equal or unequal spacing. The overall structure is reasonable, which can improve the ability to filter fibers and grass debris, reduce fiber damage, and solve the problem of needle cloth embedding and difficulty in removing debris caused by the needle cloth teeth piercing grass debris. It has the advantages of good debris removal effect, less embedding and less fiber damage.
[0023] 2. In this utility model, the top of the teeth is parallel to the bottom of the base, which can effectively filter grass clippings, facilitate the separation of wool and impurities, and effectively reduce the embedding of needle cloth.
[0024] 3. In this utility model, the height from the top end face of the tooth tip to the bottom end face of the tooth root is increased, which can increase the fiber capacity of the tooth gap and effectively reduce the damage caused by the weeding knife hitting the hair fibers.
[0025] 4. In this utility model, the distance between the toothed components is equal or unequal, which reduces the problem of the needle tips of the needle cloth being aligned, and is conducive to the combing of fiber bundles into single fibers; when the tooth tips are designed to be equidistant, the wrapping method adopts double wrapping, which can effectively reduce the embedding of the needle cloth between the teeth and facilitate the separation of hair and grass.
[0026] 5. In this utility model, the tooth components are arranged in a horizontal or self-locking configuration, which can meet the production needs of different carding machines;
[0027] 6. In this utility model, the needle cloth of the weeding roller is treated with a composite coating of different degrees, which can improve the smoothness and wear resistance of the needle cloth and effectively reduce the damage to the fibers caused by the high-speed operation of the weeding blade.
[0028] To more clearly illustrate the structural features and functions of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description
[0029] Figure 1 This is a schematic diagram of the structure of the composite coated weeding roller metal needle cloth of this utility model. Figure 1 ;
[0030] Figure 2 Dimensions of metal needle cloth are shown in the diagram. Figure 1 ;
[0031] Figure 3 Dimensions of metal needle cloth are shown in the diagram. Figure 2 ;
[0032] Figure 4 Dimensions of metal needle cloth are shown in the diagram. Figure 3 ;
[0033] Figure 5 This is a schematic diagram of the distribution of the composite coating of this utility model. Figure 1 ;
[0034] Figure 6 This is a schematic diagram of the distribution of the composite coating of this utility model. Figure 2 ;
[0035] Figure 7 This is a schematic diagram of the distribution of the composite coating of this utility model. Figure 3 ;
[0036] Figure 8This is a schematic diagram of the distribution of the composite coating of this utility model. Figure 4 .
[0037] Figure label:
[0038] 1. Base; 2. Needle tooth section; 200. Tooth component; 201. Tooth front section; 202. Tooth back section; 203. Tooth root section; 204. Arc section; 205. Tooth top section. Detailed Implementation
[0039] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.
[0040] like Figures 1-8 As shown, in one embodiment, a composite coated weeding roller metal needle cloth includes: a base 1 and a needle tooth portion 2 disposed on the end face of the base 1;
[0041] The needle tooth section 2 includes several toothed components 200 arranged along the length of the base 1. The multiple toothed components 200 are alternately connected to form a strip-shaped needle cloth structure, which facilitates the spiral wrapping or ring fixing of the needle cloth on weeding rollers of different sizes, adapting to various equipment specifications. This allows the fibers to be dispersed and slid out on the needle tooth section 2 during the combing process, effectively reducing the jamming and entanglement of fibers between the teeth and improving the combing smoothness.
[0042] Please continue reading. Figures 1-4 In this embodiment, the toothed component 200 includes a tooth root 203, and the bottom of the tooth root 203 extends and connects to the top of the base 1, so as to prevent the toothed component 200 from falling off or breaking under long-term combing force (such as fiber pulling or weeding blade friction), and significantly improve the overall structural strength of the needle cloth.
[0043] Specifically, the tooth root 203 has a tooth front 201 and a tooth back 202 facing each other at the top; wherein, the bottom of the tooth front 201 of a set of tooth components 200 is connected to the bottom of the tooth back 202 of the adjacent tooth component 200 through an arc portion 204, and the top of the tooth front 201 of a set of tooth components 200 is connected to the tooth back 202 of the adjacent tooth component 200 through an extended tooth tip 205. The tooth front 201 and the tooth tip 205 meet to form an inclined tooth tip, which can avoid fiber snagging caused by right angle transition and guide the fiber to pass smoothly through the gap between the adjacent tooth components 200.
[0044] Table 1. Names and codes of various sizes of metallic needle cloth
[0045]
[0046]
[0047] For example, refer to Table 1 and Figures 1-4 The distance between adjacent tooth components 200 ( Figure 1 The tooth pitch (P) is 1.30-6.00mm, ensuring that while meeting processing feasibility, it covers the combing needs of most textile raw materials: for fine denier fibers such as fine wool and chemical fibers, a small tooth pitch of 1.30-3.00mm is usually selected. The smaller gap between the teeth can ensure that the fiber bundles are fully separated and reduce the phenomenon of missed combing; for coarse fibers such as coarse wool and semi-fine wool or raw materials with high impurity content, a large tooth pitch of 3.00-6.00mm is selected. The larger space between the teeth can accommodate more impurities and short fibers, avoiding impurity clogging due to too small a tooth pitch.
[0048] Optionally, in some embodiments, the distance between adjacent toothed components 200 is 1.50-5.00 mm. Optionally, in some embodiments, the distance between adjacent toothed components 200 is 2.00-4.00 mm. Exemplarily, the distance between adjacent toothed components 200 can be 1.50 mm, 1.60 mm, ..., 5.90 mm, 6.00 mm, or any range of two of the above values.
[0049] It should be noted in detail that the distance between the toothed components 200 in this application is not fixed as equal, but can be designed as either equal or unequal according to actual needs. This design directly addresses the pain point of traditional carding cloths being prone to unidirectional alignment: when an unequal spacing layout is adopted, the stress points of adjacent toothed components 200 are different, and the force exerted by the fibers on the needles during the combing process will not be concentrated on the same plane, which can effectively avoid the phenomenon of needles collectively collapsing and losing neatness due to uniform force. At the same time, the unequal spacing between the teeth can generate differentiated pulling force on the fiber bundles, gradually breaking down the originally tangled fiber bundles into individual fibers, significantly improving the combing effect.
[0050] Furthermore, when using an equidistant tooth tip design, the matching wrapping method is a double wrap. This wrapping method allows the gaps between adjacent needle cloths to form complementary channels, which not only avoids the embedding caused by the overlap of tooth gaps that may occur with a single wrap, but also allows impurities to be smoothly discharged along the regular tooth gap channels, thereby effectively reducing the embedding of needle cloth gaps and further enhancing the separation effect of wool fibers and grass clippings.
[0051] It needs to be explained in detail that the longitudinal width of the tooth tip 205 ( Figure 2 and Figure 3 The tooth tip width (b3) is 0.15-0.50 mm; the extension length of the tooth tip 205 ( Figure 1 The tooth tip length (L) is 0.50-7.20 mm. Optionally, in some embodiments, the longitudinal width of the tooth tip 205 is...
[0052] 0.20-0.50mm. Optionally, in some embodiments, the distance between adjacent toothed components 200 is...
[0053] 0.20-0.40 mm. For example, the distance between adjacent tooth components 200 can be 0.15 mm, 0.16 mm, ..., 0.49 mm, 0.50 mm, or any range of two of the above values. Optionally, in some embodiments, the extension length of the tooth tip 205 is 0.50-7.00 mm. Optionally, in some embodiments, the extension length of the tooth tip 205 is 1.00-6.00 mm. For example, the extension length of the tooth tip 205 can be 0.50 mm, 0.51 mm, ..., 6.99 mm, 7.00 mm, or any range of two of the above values.
[0054] Correspondingly, the top of the tooth 205 is parallel to the bottom of the base 1, so it will not puncture or snag grass clippings. It allows the wool fibers to smoothly pass over the top of the tooth under the action of its own elasticity and combing force, while intercepting grass clippings and impurities on the surface of the tooth top, achieving precise separation and effectively solving the problem of impurity embedding caused by puncturing impurities in traditional pointed needle cloth.
[0055] Furthermore, the height from the top end face of the tooth tip 205 to the bottom end face of the tooth root 203 ( Figure 2 The total height h1) is 3.00-6.00 mm. Optionally, in some embodiments, the height from the top end face of the tooth tip 205 to the bottom end face of the tooth root 203 is 4.00-6.00 mm. Optionally, in some embodiments, the height from the top end face of the tooth tip 205 to the bottom end face of the tooth root 203 is 4.00-5.00 mm. Exemplarily, the height from the top end face of the tooth tip 205 to the bottom end face of the tooth root 203 can be 3.00 mm, 3.10 mm, ..., 5.90 mm, 6.00 mm, or a range consisting of any two of the above values.
[0056] Understandably, the increased height from the top end face of the tooth tip 205 to the bottom end face of the tooth root 203 significantly increases the fiber capacity, avoiding the problem of high-speed weeding blades directly hitting the fibers due to fiber exposure in traditional low-total-weight high-gauge fabrics. This reduces the friction and impact of the weeding blades on the wool fibers from a spatial structure perspective, thereby significantly reducing the fiber breakage rate and short fiber rate, effectively protecting the natural length and elasticity of the wool.
[0057] Furthermore, the inclination angle of the front part 201 ( Figure 1The inter-tooth angle ε is 20-50°; optionally, in some embodiments, the pitch angle of the front tooth portion 201 is 20-40°. Alternatively, in some embodiments, the pitch angle of the front tooth portion 201 is 25-35°. Exemplarily, the pitch angle of the front tooth portion 201 can be 20°, 21°, ..., 49°, 50°, or a range consisting of any two of the above values.
[0058] Correspondingly, the width of base 1 ( Figure 2 The base width b1 (corresponding to a flat arrangement) is 0.70-4.20mm; the pitch of the base 1 ( Figure 3 The base pitch b6 (corresponding to the self-locking setting) is 0.70-4.20 mm. Optionally, in some embodiments, the width of the base 1 is 0.80-4.00 mm. Optionally, in some embodiments, the width of the base 1 is 1.00-4.00 mm. Exemplarily, the width of the base 1 can be 0.70 mm, 0.71 mm, ..., 4.19 mm, 4.20 mm, or any range of any two of the above values. Optionally, in some embodiments, the pitch of the base 1 is 0.8-4.0 mm. Optionally, in some embodiments, the pitch of the base 1 is 1.00-4.00 mm. Exemplarily, the pitch of the base 1 can be 0.70 mm, 0.71 mm, ..., 4.19 mm, 4.20 mm, or any range of any two of the above values.
[0059] Understandably, the toothed components 200 are arranged in either a flat or self-locking configuration. The arrangement of the toothed components 200 on the base 1 is not a single design, but rather offers two options: flat and self-locking, to meet the structural and functional requirements of different types of carding machines. A flat arrangement means that the toothed components 200 are arranged in a straight line along the length of the base 1, with no additional fixing structure between adjacent toothed components 200. This arrangement is easy to install and has a low cost, making it suitable for ordinary carding machines or wool carding machines with conventional speeds and low carding loads, and can meet basic carding and impurity removal requirements. A self-locking arrangement involves setting interlocking structures such as buckles and grooves at the root or base 1 of the toothed components 200, so that adjacent toothed components 200 are locked together after installation, forming a more stable whole. This arrangement can withstand higher carding loads and speeds, making it suitable for processing coarse and hard fibers or high-speed heavy-duty carding machines, and preventing the toothed components 200 from shifting due to excessive carding force.
[0060] It should be noted in detail that, in order to solve the problems of low smoothness and poor wear resistance of traditional metal needle cloth, the surface of the metal needle cloth of this application is coated with a layer of metal material (which can be a surface treatment process such as physical vapor deposition or chemical vapor deposition). The coating material can be selected from chromium, nickel, titanium, tungsten or zinc according to actual use requirements; and the coverage area of the coating can be flexibly adjusted. It can be fully coated on the base 1 and the needle tooth 2, or only partially coated on the needle tooth 2, thereby effectively improving the smoothness and wear resistance of the needle cloth and effectively reducing the damage to the fibers caused by the high-speed operation of the weeding knife.
[0061] Please continue reading. Figure 5 In this embodiment, the base 1 and the outer layer of the needle tooth 2 are provided with a composite coating. This full-area coating solution is suitable for scenarios with harsh combing environment, high impurity content and high rotation speed (such as coarse wool spinning production line). The coating of the base 1 can enhance its adhesion stability with the roller and avoid base wear caused by impurity friction. The coating of the needle tooth 2 strengthens the wear resistance and smoothness of the combing area and comprehensively improves the wear resistance of the card cloth.
[0062] Please continue reading. Figure 6 In this embodiment, the outer layer of the needle tooth part 2 is provided with a composite coating, which is an optimized solution for conventional combing scenarios (such as fine wool semi-worsted spinning); the needle tooth part 2 is the core combing area, and the coating can meet the combing requirements; the base 1 does not need to directly contact the fibers and impurities, and not applying a coating can reduce production costs.
[0063] Please continue reading. Figure 7 In this embodiment, the outer layer of the tooth tip 205 is entirely coated with a composite coating, which is suitable for scenarios where the core requirement is to remove impurities (such as combing recycled wool with high impurity content). The tooth tip 205 is a key area for intercepting grass clippings and impurities. The coating can improve its wear resistance and smoothness and prevent impurities from getting stuck. The tooth root 203, the front part of the tooth 201 and other areas do not need to come into frequent contact with impurities. Not coating them can further control costs.
[0064] Please continue reading. Figure 8 In this embodiment, a composite coating is provided on the upper half of the outer layer of the tooth tip 205 near the tooth tip. The upper half of the tooth tip is the area that comes into most frequent contact with fibers and impurities, and the coating can ensure the core function. The lower half has a low contact frequency, and no coating is applied to minimize costs.
[0065] Understandably, in actual textile production, a suitable coating scheme and arrangement can be selected based on the type of raw material, impurity content, and model of the carding machine. Then, the composite-coated metal carding cloth provided in this application is tightly coated onto the carding roller using specialized coating equipment. During carding, the carding roller drives the carding cloth to rotate at high speed. The toothed component 200 of the carding cloth cooperates with adjacent carding blades, transfer brushes, and other carding elements: First, the inclined tooth tips of the toothed component 200 grasp the input fiber bundle and separate it into individual fibers through an unequal or equidistant tooth spacing arrangement; second, the parallel tooth tips 205 intercept grass clippings and mineral impurities in the fibers, preventing impurities from being transferred with the fibers; subsequently, the carding blades rotate at high speed, scraping off and discharging the impurities from the tooth tips 205; finally, the transfer brush transfers the clean fibers from the gaps between the teeth to the next process; ultimately, efficient separation of wool fibers from plant and mineral impurities is achieved, resulting in good impurity removal, minimal fiber damage, and strong anti-impregnation ability.
[0066] Through the above technical solution, this application changes the layout of the spacing between the needle cloth tips and adopts a large flat-top structure with equal or unequal spacing. The overall structure is reasonable and can improve the ability to filter fibers and grass debris. While reducing fiber damage, it solves the problem of needle cloth embedding and difficulty in removing debris caused by the needle cloth tips piercing grass debris. It has the advantages of good debris removal effect, less embedding and less fiber damage.
[0067] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A composite coating burr roller metal clothing characterized by, include: The base and the toothed portion disposed on the end face of the base. The needle-tooth portion includes a plurality of toothed components arranged along the length direction of the base. The plurality of toothed components are alternately connected to form a strip-shaped needle cloth structure, so that the fibers are dispersed and slid out on the needle-tooth portion during the combing process. The tooth component includes a tooth root portion, which extends and connects to the base. The tooth root has a tooth front and a tooth back facing each other. The bottom of the tooth front of a group of tooth components is connected to the bottom of the tooth back of an adjacent tooth component through an arc transition. The top of the tooth front of a group of tooth components is connected to the tooth back of an adjacent tooth component through a tooth tip extension. The tooth front and the tooth tip meet to form an inclined tooth tip.
2. The composite coated weed-killing roller metal needle cloth according to claim 1, characterized in that, The toothed components are spaced at equal or unequal intervals, and are arranged in a horizontal or self-locking configuration.
3. The composite coating burr metal clothing according to claim 2, characterized in that, The distance between adjacent toothed components is 1.30-6.00 mm.
4. The composite coating burr metal clothing according to claim 1, characterized in that, The extension length of the tooth tip is 0.50-7.20 mm.
5. The composite coating burr metal clothing according to claim 1, characterized in that, The tooth tip is parallel to the base, and the longitudinal width of the tooth tip is 0.15-0.50 mm.
6. The composite coating burr metal clothing according to claim 5, characterized in that, The height from the top end face of the tooth tip to the bottom end face of the tooth root is 3.00-6.00 mm.
7. The composite coated weed-killing roller metal needle cloth according to claim 1, characterized in that, The forward tilt angle of the front part of the tooth is 20-50°.
8. The composite coating burr metal clothing according to claim 1, characterized in that, The width of the base portion is 0.70-4.20 mm.
9. The composite coating burr metal clothing according to claim 1, characterized in that, The pitch of the base portion is 0.70-4.20 mm.
10. The composite coated weed-killing roller metal needle cloth according to claim 1, characterized in that, The base and the outer layer of the needle tooth portion are provided with a composite coating; or The outer layer of the needle teeth is provided with a composite coating; or The outer layer of the tooth tip is provided with a composite coating.