Anti-curl edge shifting structure of scutcher
By setting an adjustable edge-trimming mechanism on the fabric opening machine, the problem of fabric edge curling is solved, and the fabric can be fully unfolded and rolled up smoothly, improving the utilization rate of the fabric and the dyeing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- FUJIAN LIHAN TECHNOLOGY IND CO LTD
- Filing Date
- 2026-02-13
- Publication Date
- 2026-05-12
AI Technical Summary
When existing open-width machines process weft-knitted fabrics, the fabric is prone to curling at the edges, resulting in creases and uneven dyeing, which affects the fabric's utilization rate.
First and second edge-pulling mechanisms are set on the frame of the opening machine. The edge of the fabric is spread out by the guide groove and edge-pulling plate between the arc-shaped support rod and the take-up roller group. The position and angle of the edge-pulling plate are adjusted by the adjustable seat and the adjusting shaft to ensure that the edge of the fabric is fully spread out.
It effectively prevents the fabric edges from curling, ensuring the fabric unfolds flat and improving the utilization rate and dyeing uniformity of the fabric.
Smart Images

Figure CN122009882A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of opening machine technology, and in particular to an anti-rolling and edge-trimming structure for opening machines. Background Technology
[0002] A fabric spreading machine uses a beak-like mechanism to spread the fabric into a wider width. It is suitable for spreading knitted fabrics, which are typically washed and then twisted into bundles. The spreading machine is used to expand rope-like fabrics into a flat width. These spreading machines are relatively simple in structure and operation, but they have a problem with the edges of the split fabric tending to curl. The characteristics of some weft-knitted fabrics inherently result in curling edges. Although this curling can be eliminated during subsequent dyeing and finishing processes, the curling edges when the knitted fabric is rolled up after leaving the machine can cause creases, uneven dyeing of the curled areas, and reduced fabric usability. For example, Chinese patent CN204039733U discloses a fabric spreading machine, including a frame with a detwisting device. The detwisting device includes a central rod and several spreading rods arranged around the circumference of the central rod. Each spreading rod has a connector at both ends, and the spreading rod is fixedly connected to the connector. The connector is slidably fitted onto the central rod, and the connector has a limiting element to restrict its sliding. This allows for adjustable detwisting to accommodate different fabrics and sizes. However, in the aforementioned patent, after the fabric passes through the spreading device, the fabric edges may not be fully spread, resulting in overlap and curling, which affects subsequent processing. Summary of the Invention
[0003] Therefore, in view of the above problems, the present invention proposes an anti-rolling edge structure that allows the fabric to be fully unfolded after opening, effectively prevents the fabric edges from rolling inward, corrects the knitted fabric surface, and provides a good fabric roll-up effect.
[0004] To solve this technical problem, the present invention adopts the following solution: an anti-rolling and edge-trimming structure for a fabric spreading machine, comprising a fabric spreading machine body, wherein the frame of the fabric spreading machine body is provided with a traction roller group, an arc-shaped fabric support rod for adjusting the fabric spreading width, a take-up roller group, and a take-up roller group. The traction roller group clamps the fabric and spreads the fabric through the arc-shaped fabric support rod to the take-up roller group. A first edge-trimming mechanism and a second edge-trimming mechanism are respectively provided at both ends of a support rod located on one side of the take-up roller group on the frame of the fabric spreading machine body. The first edge-trimming mechanism and the second edge-trimming mechanism are adjustable on the support rod. The spacing between the components and the first and second edge-trimming mechanisms are adjustable on the support rod, and their radial angles on the support rod are adjustable. Each of the first and second edge-trimming mechanisms includes an adjustable seat, a first support member, a second support member, a fabric guide groove, and an adjusting shaft. The adjustable seat is adjustablely mounted on the support rod, and its radial angle on the support rod is adjustable. The first and second support members are spaced apart and parallel to each other on the adjustable seat. The adjusting shaft is located between the upper parts of the first and second support members and is adjustable for its radial angle on the first and second support members and its vertical height position between them. The fabric guide groove is fixed to the adjusting shaft and includes a first and second fabric guide plate. The first and second fabric guide plates are stacked vertically with a gap between them, and one side of the first and second fabric guide plates is connected. At the outlet of the fabric guide groove, an adjustable lateral edge-trimming plate and a second edge-trimming plate are respectively provided on the first and second fabric guide plates. The first edge-trimming plate has a first edge-trimming edge facing the edge of the fabric. The second edge-shifting plate has a second arc-shaped section for spreading the fabric along the edge of the fabric. After the arc-shaped support rod spreads the fabric, both sides of the fabric pass through the guide groove channels of the first edge-shifting mechanism and the second edge-shifting mechanism, respectively. The first arc-shaped section of the first edge-shifting plate and the second arc-shaped section of the second edge-shifting plate spread the upper and lower edges of the fabric respectively. After spreading the fabric on both sides of the fabric after the arc-shaped support rod is spread, the first edge-shifting mechanism and the second edge-shifting mechanism send it to the take-up roller group, and the take-up roller group sends the spread and flattened fabric to the winding roller group for winding.
[0005] Furthermore, the outlet of the guide groove is an inclined portion extending outward from the side where the first guide plate and the second guide plate are connected. The first and second edge-pulling plates are slidably disposed on the inclined portions of the first and second guide plates, respectively. The first and second edge-pulling plates are also provided with tensioning and positioning sleeves. The inclined arrangement of the first and second edge-pulling plates facilitates the first arc-shaped portion of the first edge-pulling plate and the second arc-shaped portion of the second edge-pulling plate to cut and unfold the curled fabric edge from the inclined angle.
[0006] Furthermore, multiple sets of mounting holes for adjusting shafts are symmetrically provided between the upper part and top of the first and second support members. The adjusting shafts are adjusted by adjusting the mounting holes at different heights to adjust the radial angle on the first and second support members and the vertical height position between the first and second support members. This allows for positional adjustment of the woven fabric according to different elasticity, thickness, and tension requirements.
[0007] Furthermore, the guide groove is located on the upper surface of the adjusting shaft between the first and second supports, and the guide channel of the guide groove protrudes from the first and second supports. This effectively ensures that the woven fabric is smoothly fed to the take-up roller group without being constrained by the first and second supports.
[0008] Furthermore, the adjustable seat includes a seat body and an adjustable clamping mechanism disposed on the seat body. The adjustable clamping mechanism clamps onto the support rod and can adjust the radial angle of the seat body on the support rod. A first support member and a second support member are disposed parallel to each other on the seat body at intervals. The adjustable clamping mechanism facilitates the adjustment of the position and radial angle of the adjustable seat on the support rod.
[0009] Furthermore, the adjustable clamping mechanism includes a fixed component, a movable component, and an adjusting rod. The fixed component is fixedly connected to the base body, and one side of the fixed component extends outward to form a positioning part. One side of the movable component is hinged to the side of the fixed component where the positioning part extends. The adjusting rod adjustably passes through the positioning part and is connected to the movable component, causing the movable component to press against the fixed component and clamp and fix it to the support rod. This makes the adjustable clamping mechanism easy to assemble and use.
[0010] Furthermore, the movable component extends outward from the side hinged to the fixed component to form a second positioning part, and the side of the movable component away from the hinged component extends towards the fixed component to form a limiting part. The adjusting rod is fixedly connected to the second positioning part of the movable component. Adjusting the length of the adjusting rod passing through the positioning part causes the limiting part of the movable component to cooperate with the fixed component and clamp onto the support rod. The limiting part makes the structure more stable when the movable component and the fixed component are fixed onto the support rod.
[0011] Furthermore, an adjustment handle is provided at the end of the adjustment rod away from the second positioning part. The handle facilitates user adjustment.
[0012] Furthermore, the first and second support members extend downwards and are respectively provided with positioning grooves that are adapted to the support rod. This makes the positioning of the first and second support members more stable when used on the support rod.
[0013] By adopting the aforementioned technical solution, the beneficial effects of the present invention are as follows: by setting a first edge-setting mechanism and a second edge-setting mechanism on both sides of the fabric conveyed between the arc-shaped support rod and the take-up roller group, the edges of the conveyed fabric are unfolded, preventing the edges of the fabric from curling up after passing through the arc-shaped support rod. That is, the fabric in the guide channel of the guide groove of the first edge-setting mechanism and the second edge-setting mechanism is unfolded by the first arc-shaped part of the first edge-setting plate and the second arc-shaped part of the second edge-setting plate respectively, so that the edges of the fabric sent to the take-up roller group after the fabric is unfolded can be fully unfolded, effectively preventing the edges of the fabric from curling inward, effectively correcting the edges of the knitted fabric, and resulting in a good fabric take-up effect. The adjustable seat allows the first and second edge-trimming mechanisms to be freely adjusted according to the width of the fabric, enabling the first and second edge-trimming plates to be used uniformly for different widths. At the same time, the radial angle of the mechanism on the support rod can be adjusted according to the elasticity, thickness, and tension requirements of different fabrics. By adjusting the position of the adjusting shaft, the user can adjust the edge spreading position according to the elasticity, thickness, and tension requirements of different fabrics, ensuring that the edges of the fabric sent to the take-up roller group are spread out flat. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention;
[0015] Figure 2 This is a structural schematic diagram from another angle of an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the first edge-trimming mechanism according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the first edge-trimming mechanism in an embodiment of the present invention from another angle. Detailed Implementation
[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0017] The terms "first," "second," "third," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.
[0018] refer to Figures 1-4The preferred anti-rolling and edge-trimming structure of the opening machine of the present invention includes an opening machine body. The frame 1 of the opening machine body is provided with a traction roller group 2, an arc-shaped support rod 3 for adjusting the weaving width, a take-up roller group 4, and a winding roller group. The traction roller group 2 clamps the fabric and, through the arc-shaped support rod 3, spreads the fabric to the take-up roller group 4. A first edge-trimming mechanism 5 and a second edge-trimming mechanism 6 are respectively provided at both ends of a support rod 11 located on one side of the take-up roller group 4 on the frame 1 of the opening machine body. The first edge-trimming mechanism 5 and the second edge-trimming mechanism 6 have the same structure and are symmetrically arranged on both sides of the fabric. The guide wires of the first edge-trimming mechanism 5 and the second edge-trimming mechanism 6 are connected... The side openings of the guide are arranged facing each other. The first edge-trimming mechanism 5 includes an adjustable seat 51, a first support member 52, a second support member 53, a guide groove 54, and an adjusting shaft 55. The adjustable seat 51 is adjustablely mounted on the support rod 11, and the radial angle of the adjustable seat 51 on the support rod 11 can be adjusted. The first support member 52 and the second support member 53 are arranged parallel to each other on the adjustable seat 51. The adjusting shaft 55 is located between the upper parts of the first support member 52 and the second support member 53, and the radial angle of the adjusting shaft 55 on the first support member 52 and the second support member 53 and the position of the adjusting shaft 55 on the first support member 54 can be adjusted. The vertical height position between the second support member 53 and the guide groove 54 is fixed on the adjusting shaft 55. The guide groove 54 includes a first guide plate 541 and a second guide plate 542, which are stacked vertically with a gap between them and connected on one side. The outlet of the guide groove 54 is provided with an adjustable lateral position first edge plate 543 and a second edge plate 544 on the first guide plate 541 and the second guide plate 542, respectively. The first edge plate 543 has a first arc-shaped part 5431 for spreading the fabric at the edge of the fabric surface. The second edge-pulling plate 544 has a second arc-shaped part 5441 for spreading the fabric along the edge of the fabric. After the arc-shaped support rod 3 is opened, the two sides of the fabric pass through the guide groove 54 channel of the first edge-pulling mechanism 5 and the second edge-pulling mechanism 6 respectively, and spread the upper and lower edges of the fabric respectively through the first arc-shaped part 5431 of the first edge-pulling plate 543 and the second arc-shaped part 5441 of the second edge-pulling plate 544. After the first edge-pulling mechanism 5 and the second edge-pulling mechanism 6 spread the fabric on both sides of the fabric after the arc-shaped support rod 3 is opened, it is sent to the take-up roller group 4 and the take-up roller group 4 sends the spread and flattened fabric to the winding roller group for winding.
[0019] The outlet of the guide groove 54 is an inclined portion extending outward from the side where the first guide plate 541 and the second guide plate 542 are connected. The first edge-shifting plate 543 and the second edge-shifting plate 544 are slidably disposed on the inclined portions of the first guide plate 541 and the second guide plate 542, respectively. The first edge-shifting plate 543 and the second edge-shifting plate 544 are also provided with tensioning and positioning sleeves 5432 and 5442, respectively. The tensioning and positioning sleeves 5432 and 5442 include clamping sleeves and limiting bolts disposed on the clamping sleeves. The position of the first edge-shifting plate 543 and the second edge-shifting plate 544 on the first guide plate 541 and the second guide plate 542 is adjusted by tightening or loosening the limiting bolts.
[0020] The first support member 52 and the second support member 53 are symmetrically provided with multiple sets of mounting holes 521 and 531 for the adjustment shaft 55 from the upper part to the top. The adjustment shaft 55 is adjusted and installed on the mounting holes at different heights to adjust the radial angle on the first support member 52 and the second support member 53 and the vertical height position between the first support member 52 and the second support member 53. The guide groove 54 is provided on the upper surface of the adjustment shaft 55 between the first support member 52 and the second support member 53, and the guide channel of the guide groove 54 protrudes from the first support member 52 and the second support member 53. The first support member 52 and the second support member 53 extend downward and are respectively provided with positioning grooves adapted to the support rod 11.
[0021] The adjustable seat 51 includes a seat body 511 and an adjustable clamping mechanism 512 disposed on the seat body 511. A first support member 52 and a second support member 53 are disposed parallel to each other on the seat body 511. The adjustable clamping mechanism 512 includes a fixed member 5121, a movable member 5122, and an adjusting rod 5123. The fixed member 5121 is fixedly connected to the seat body 511. One side of the fixed member 5121 extends outward to form a positioning part. One side of the movable member 5122 is hinged to the side of the fixed member 5121 where the positioning part extends. The adjusting rod 5123 adjustably passes through the positioning part and... The movable part 5122 is connected to the fixed part 5121 and clamped onto the support rod 11. The movable part 5122 extends outward from the side hinged to the fixed part 5121 to form a second positioning part. The side of the movable part 5122 away from the hinged part extends towards the fixed part 5121 to form a limiting part. The adjusting rod 5123 is fixedly connected to the second positioning part of the movable part 5122. The adjusting rod 5123 adjusts the length passing through the positioning part, causing the limiting part of the movable part 5122 to cooperate with the fixed part 5121 and clamp onto the support rod 11. The end of the adjusting rod 5123 away from the second positioning part is provided with an adjusting handle.
[0022] In use, the moving part 5122 is loosened by adjusting the length of the adjusting rod 5123 through the positioning part through the threaded connection of the adjusting rod 5123. Then, the position and radial angle on the support rod 11 are adjusted according to the width, elasticity and tension requirements of the fabric so that the first arc-shaped part 5431 of the first edge-pulling plate 543 and the second arc-shaped part 5441 of the second edge-pulling plate 544 are respectively obliquely facing the two sides of the fabric. Then, the moving part 5122 is locked on the support rod 11 by adjusting the adjusting rod 5123. This allows the first arc-shaped part 5431 of the first edge-pulling plate 543 and the second arc-shaped part 5441 of the second edge-pulling plate 544 to spread the upper and lower edges of the fabric respectively. When adjusting the first edge plate 543 and the second edge plate 544, the angle of the guide groove 54 and the vertical height of the guide groove 54 can also be adjusted in conjunction with the adjusting shaft 55, thereby adjusting the first arc-shaped part 5431 of the first edge plate 543 and the second arc-shaped part 5441 of the second edge plate 544.
[0023] Although the invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the invention without departing from the spirit and scope of the invention as defined in the appended claims, all of which shall be within the scope of protection of the invention.
Claims
1. An anti-rolling and edge-trimming structure for a fabric spreading machine, comprising a fabric spreading machine body, wherein the frame of the fabric spreading machine body is provided with a traction roller group, an arc-shaped fabric support rod for adjusting the fabric spreading width, a take-up roller group, and a winding roller group, wherein the traction roller group clamps the fabric and spreads the fabric through the arc-shaped fabric support rod to the take-up roller group, characterized in that: The frame of the opening machine body has a support rod on one side of the take-up roller group, with a first edge-shifting mechanism and a second edge-shifting mechanism respectively installed at both ends. The first and second edge-shifting mechanisms are adjustable in distance from each other on the support rod, and their radial angles on the support rod can also be adjusted. Each of the first and second edge-shifting mechanisms includes an adjustable seat, a first support member, a second support member, a fabric guide groove, and an adjusting shaft. The adjustable seat is adjustable on the support rod, and its radial angle on the support rod can be adjusted. The first and second support members are spaced apart and parallel on the adjustable seat. The adjusting shaft is located between the upper parts of the first and second support members and can adjust its radial angle on the first and second support members, as well as its vertical height position between them. The fabric guide groove is fixed to the adjusting shaft. The guide groove includes a first guide plate and a second guide plate, which are stacked vertically with a gap between them and connected on one side. At the outlet of the guide groove, an adjustable lateral edge-shifting plate and a second edge-shifting plate are respectively provided on the first and second guide plates. The first edge-shifting plate has a first arc-shaped part for spreading the fabric at the edge of the fabric surface, and the second edge-shifting plate has a second arc-shaped part for spreading the fabric at the edge of the fabric surface. After the fabric is spread open by the arc-shaped support rod, both sides of the fabric pass through the guide groove channels of the first and second edge-shifting mechanisms, respectively, and spread the upper and lower edges of the fabric by the first arc-shaped part of the first edge-shifting plate and the second arc-shaped part of the second edge-shifting plate. After spreading the fabric by the first and second edge-shifting mechanisms, the fabric is sent to the take-up roller group, and the take-up roller group sends the spread and flattened fabric to the winding roller group for winding.
2. The anti-rolling and edge-trimming structure for a flap-opening machine according to claim 1, characterized in that: The outlet of the guide groove is an inclined portion formed by extending outward from the side where the first guide plate and the second guide plate are connected. The first and second edge plates are slidably disposed on the inclined portions of the first and second guide plates, and the first and second edge plates are also provided with tension positioning sleeves.
3. The anti-rolling and edge-trimming structure for a flap-opening machine according to claim 1, characterized in that: Multiple sets of mounting holes for adjusting shafts are symmetrically provided between the upper part and the top of the first and second supports. The adjusting shafts are adjusted by adjusting the mounting holes at different heights to adjust the radial angle on the first and second supports and the vertical height position between the first and second supports.
4. The anti-rolling and edge-trimming structure for a flap-opening machine according to claim 1, characterized in that: The guide groove is located on the upper surface of the adjusting shaft between the first support and the second support, and the guide channel of the guide groove protrudes from the first support and the second support.
5. The anti-rolling and edge-trimming structure for a flap-opening machine according to claim 1, characterized in that: The adjustable seat includes a seat body and an adjustable clamping mechanism disposed on the seat body. The adjustable clamping mechanism clamps onto a support rod and can adjust the radial angle of the seat body on the support rod. A first support member and a second support member are disposed on the seat body at intervals and parallel to each other.
6. The anti-rolling and edge-trimming structure for a flap-opening machine according to claim 5, characterized in that: The adjustable clamping mechanism includes a fixed member, a movable member, and an adjusting rod. The fixed member is fixedly connected to the base body. One side of the fixed member extends outward to form a positioning part. One side of the movable member is hinged to the side of the fixed member where the positioning part extends. The adjusting rod can adjustably pass through the positioning part and is connected to the movable member, causing the movable member to press against the fixed member and clamp and fix it on the support rod.
7. The anti-rolling and edge-trimming structure for a flap-opening machine according to claim 6, characterized in that: The movable part extends outward from the side hinged to the fixed part to form a second positioning part, and the movable part extends towards the fixed part from the side away from the fixed part to form a limiting part. The adjusting rod is fixedly connected to the second positioning part of the movable part. The adjusting rod adjusts the length passing through the positioning part to drive the limiting part of the movable part to cooperate with the fixed part to clamp onto the support rod.
8. The anti-rolling and edge-trimming structure for a flap-opening machine according to claim 7, characterized in that: An adjustment handle is provided at the end of the adjusting rod away from the second positioning part.
9. The anti-rolling and edge-trimming structure for a flap-opening machine according to claim 1, characterized in that: The first support member and the second support member extend downward and are respectively provided with positioning grooves that are adapted to the support rod.