Fabric selvedge trimming mechanism and knitting machine

Abstract

The utility model discloses a kind of fabric selvedge thread trimming mechanism and knitting machine, specifically related to fabric processing equipment technical field, including fabric selvedge trimming mechanism, lint collecting mechanism, the fabric selvedge trimming mechanism includes two opposite U-shaped side plates, the horizontal opposite surface between two the U-shaped side plate is uniformly connected with the connecting slide bar, the outer wall of the connecting slide bar is slidably installed with V-shaped plate in front and back two sides, the horizontal opposite surface between the V-shaped plate and U-shaped side plate is fixedly connected with spring.The utility model discloses a kind of fabric selvedge thread trimming mechanism and knitting machine, by setting slidable V-shaped plate, spring and multiple fabric trimming mechanism, make and keep uniform trimming pressure, effectively capture and cut messy thread end and selvedge, solve the problem of not being completely trimmed, easy to jam and poor adaptability in prior art, improve the quality and efficiency of fabric trimming.

Description

Technical Field

[0001] This utility model relates to the field of fabric processing equipment technology, and in particular to a fabric edge trimming mechanism and a knitting machine. Background Technology

[0002] In the production of knitted fabrics, especially after circular knitting machines and looms have finished weaving, a large number of yarn ends remain on the edges or surface of the fabric. These residual yarn ends not only seriously affect the cleanliness, appearance, and feel of the fabric, but also easily cause snagging, tangling, and even machine downtime during subsequent dyeing, finishing, cutting, and sewing processes, thereby reducing production efficiency and the quality of the final product. The existing technology has the following problems: To improve automation, some thread-cutting devices integrated into textile equipment have emerged in the prior art. For example, Chinese patent document CN220149770U discloses a trimming mechanism for a loom, which trims the fabric edges through the cooperation of a pressing assembly and a cutting station. However, such devices mostly focus on cutting the overall edge of the fabric or can only handle single yarns. They are ineffective at handling the large number of messy thread ends that accumulate on the fabric edge after weaving, as well as burrs on the fabric surface such as webbing. They generally suffer from insufficient shearing force, inability to effectively comb and capture messy thread ends, easy jamming, and poor adaptability to different types or thicknesses of yarn. Utility Model Content

[0003] The main purpose of this utility model is to provide a fabric edge trimming mechanism and a knitting machine, which can effectively solve the problems of incomplete fabric edge trimming, inconvenient lint collection, and adaptability to different fabric thicknesses.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A fabric edge trimming mechanism includes a fabric edge trimming mechanism and a lint collection mechanism. The fabric edge trimming mechanism includes two opposing U-shaped side plates. A connecting slide rod is fixedly connected between the horizontally opposite surfaces of the two U-shaped side plates. V-shaped plates are slidably installed on the front and rear sides of the outer wall of the connecting slide rod. A spring is fixedly connected between the horizontally opposite surfaces of the V-shaped plates and the U-shaped side plates. Several fabric trimming mechanisms are installed along a V-shaped path between the opposite surfaces of the front and rear V-shaped plates. Each fabric trimming mechanism includes a trimming box. A protective box and a second servo motor are fixedly installed on the back of the two opposing trimming boxes. The second servo motor is located inside the protective box. The output shaft of the protective box passes through the inner cavity of the trimming box and has several trimming blades fixedly installed in a circular array. A perforated stainless steel cover is threaded onto the side of the trimming box away from the protective box. The perforated stainless steel cover has several through-holes for thread ends to pass through. The perforated stainless steel cover is located on one side of the trimming blades.

[0005] Preferably, a plurality of fabric trimming mechanisms on opposite sides of the two V-shaped plates are fixedly installed with V-shaped air extraction pipes at their bottoms, and each of the plurality of trimming boxes has an air extraction hole penetrating its inner cavity at its bottom. The air extraction hole extends into the inner cavity of the V-shaped air extraction pipe, and each of the two V-shaped air extraction pipes is fixedly connected with an extension pipe for negative pressure air extraction.

[0006] Preferably, the lint collection mechanism includes an air pump, which is installed on the rear side of the fabric edge trimming mechanism. The air pump is fixedly connected to an air extraction box at its suction end. A limiting ring is fixedly installed on the inner ring of the air extraction box. A circular filter screen is attached to the front side of the limiting ring. The diameter of the circular filter screen is the same as the inner diameter of the air extraction box.

[0007] Preferably, the front side of the air extraction box is snapped with a disassembly cover, and the ends of the two extension tubes away from the V-shaped plate both extend to the inside of the disassembly cover. A rubber ring is fixedly bonded to the outer wall of the connection between the air extraction box and the disassembly cover.

[0008] A knitting machine includes the aforementioned fabric edge trimming mechanism and a knitting machine base. The inner cavity of the knitting machine base is equipped with a rotating fabric collecting mechanism. The rotating fabric collecting mechanism includes a servo motor, which is fixedly installed at the bottom of the inner cavity of the knitting machine base. The output shaft of the servo motor is fixedly mounted with a U-shaped plate. The fabric edge trimming mechanism includes two U-shaped side plates, which are respectively fixedly installed on the vertically opposite faces of the two U-shaped plates. A collecting roller is rotatably mounted on the front side of the U-shaped plate, located below the fabric edge trimming mechanism, for winding up the trimmed fabric. The lint collecting mechanism includes an air pump fixedly installed on the rear side of the U-shaped plate.

[0009] Preferably, a guide roller and a V-shaped guide rod are fixedly installed between the two vertically opposite surfaces of the U-shaped plate. The V-shaped guide rod is located above the guide roller and consists of two rods forming a V shape, used to guide the fabric. The guide roller is located above the fabric edge trimming mechanism and is used to guide the fabric before trimming.

[0010] Preferably, the knitting machine base box has a hinged door on the front side.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. This utility model provides a fabric fraying mechanism and a knitting machine. By setting a sliding V-shaped plate, a spring and multiple fabric trimming mechanisms, the trimming mechanism can adapt to fabrics of different thicknesses and maintain uniform trimming pressure, effectively capturing and cutting messy threads and fraying edges. This solves the problems of incomplete trimming, easy jamming and poor adaptability in the prior art, and improves the quality and efficiency of fabric trimming.

[0012] 2. This utility model provides a fabric lint trimming mechanism and a knitting machine. By integrating a negative pressure air extraction system and a lint collection mechanism, the lint generated during trimming is promptly sucked in and centrally filtered using an air pump, an air extraction box, and a detachable filter screen, thus preventing lint from flying and polluting the environment. At the same time, the filter screen can be quickly disassembled and cleaned, ensuring the durability of the collection effect and the convenience of operation and maintenance, thereby improving the cleanliness of the production environment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the box door in the open state of this utility model; Figure 3 This is a schematic diagram of the rotating fabric collection mechanism of this utility model; Figure 4 This is a schematic diagram of the fabric edge trimming mechanism of this utility model. Figure 5 This is a schematic diagram of the fabric trimming mechanism of this utility model; Figure 6 This is a schematic diagram of the lint collection mechanism of this utility model.

[0014] In the diagram: 1. Knitting machine base box; 11. Box door; 2. Rotating fabric collection mechanism; 21. Servo motor one; 22. U-shaped plate; 23. Guide roller; 24. V-shaped guide rod; 25. Collection roller; 3. Fabric edge trimming mechanism; 31. U-shaped side plate; 32. Connecting slide rod; 33. Spring; 34. V-shaped plate; 35. Fabric trimming mechanism; 351. Trimming box; 352. Protective box; 353. Servo motor two; 354. Trimming blade; 355. Perforated stainless steel cover; 356. Air extraction hole; 36. V-shaped air extraction pipe; 37. Extension pipe; 4. Fluff collection mechanism; 41. Air pump; 42. Air extraction box; 43. Limiting ring; 44. Circular filter screen; 45. Removable cover. Detailed Implementation

[0015] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0016] like Figures 1 to 6 As shown, this utility model provides a fabric edge trimming mechanism and a knitting machine. The knitting machine includes a knitting machine base box 1, a rotating fabric collecting mechanism 2, a fabric edge trimming mechanism 3, and a lint collecting mechanism 4. The fabric edge trimming mechanism 3 and the lint collecting mechanism 4 together constitute the fabric edge trimming mechanism, which is used to automatically trim the raw edges and thread ends on the fabric surface and collect the generated lint to improve fabric quality and production efficiency.

[0017] Example 1 like Figure 3 and Figure 4 As shown, the fabric edge trimming mechanism 3 includes two opposing U-shaped side plates 31. The two U-shaped side plates 31 are respectively fixedly installed on the vertical opposing surfaces of the two U-shaped plates 22. A connecting slide rod 32 is fixedly connected between the horizontal opposing surfaces of the two U-shaped side plates 31. V-shaped plates 34 are slidably installed on both the front and rear sides of the outer wall of the connecting slide rod 32. A spring 33 is fixedly connected between the V-shaped plate 34 and the horizontal opposing surface of the U-shaped side plate 31, so that the V-shaped plate 34 can adaptively adjust its position to adapt to fabrics of different thicknesses. Specifically, as the fabric passes through, the spring 33 compresses or extends to ensure that the fabric trimming mechanism 35 on the front and rear V-plates 34 always maintains appropriate pressure on the fabric surface, avoiding excessive compression or incomplete trimming. Several fabric trimming mechanisms 35 are installed along the V-shaped route between the opposing surfaces of the two V-shaped plates 34. Each fabric trimming mechanism 35 includes a trimming box 351, a protective box 352, a second servo motor 353, trimming blades 354, and a perforated stainless steel cover 355. The protective box 352 and the second servo motor 353 are fixedly installed on the back side of the trimming box 351. The second servo motor 353 is located in the inner cavity of the protective box 352, and its output shaft passes through the inner cavity of the trimming box 351. Several trimming blades 354 are fixedly installed in a circular array. The perforated stainless steel cover 355 is threaded onto the front side of the trimming box 351 and has several through-holes for the thread ends to pass through and be cut by the trimming blades 354. Several fabric trimming mechanisms 35 on opposite sides of two V-shaped plates 34 are fixedly installed with V-shaped air extraction pipes 36 at their bottom. Each trimming box 351 has an air extraction hole 356 that penetrates its inner cavity at its bottom. The air extraction hole 356 is connected to the inner cavity of the V-shaped air extraction pipe 36. Both V-shaped air extraction pipes 36 are fixedly connected to an extension pipe 37 for negative pressure air extraction, which sucks the lint generated during trimming into the lint collection mechanism 4.

[0018] like Figure 5 and Figure 6 As shown, the lint collection mechanism 4 includes an air pump 41, an air extraction box 42, a limiting ring 43, a circular filter screen 44, and a detachable cover 45. The air pump 41 is fixedly installed on the rear side of the U-shaped plate 22, and its air extraction end is fixedly connected to the air extraction box 42. The limiting ring 43 is fixedly installed on the inner ring of the air extraction box 42. The circular filter screen 44 is attached to the front side of the limiting ring 43. The diameter of the circular filter screen 44 is the same as the inner diameter of the air extraction box 42 and is used to filter lint. The detachable cover 45 is snapped onto the front side of the air extraction box 42. The ends of the two extension tubes 37 away from the V-shaped plate 34 are both extended to the inner side of the detachable cover 45. A rubber ring is fixedly bonded to the outer wall of the snap-fit ​​joint between the air extraction box 42 and the detachable cover 45 to ensure sealing. The air pump 41 generates negative pressure through the extension tube 37 and the V-shaped suction tube 36, drawing the lint generated during trimming into the suction box 42 through the suction hole 356 of the trimming box 351. The circular filter screen 44 is made of stainless steel mesh to intercept lint. Clean air is discharged from the air pump 41. The filter screen can be cleaned or replaced periodically by unscrewing the disassembly cover 45 to ensure suction efficiency. The rubber ring is made of silicone rubber to ensure a seal between the suction box 42 and the disassembly cover 45, preventing air leakage from affecting the negative pressure effect.

[0019] Example 2 like Figure 1 and Figure 2As shown, this utility model provides a knitting machine, including a fabric edge trimming mechanism as described in Embodiment 1, and a knitting machine base box 1. The knitting machine base box 1 is an integral support structure with a door 11 hinged to its front side for easy maintenance and operation. A rotating fabric collecting mechanism 2 is provided inside the knitting machine base box 1. This mechanism includes a servo motor 21, a U-shaped plate 22, a guide roller 23, a V-shaped guide rod 24, and a collecting roller 25. The servo motor 21 is fixedly installed at the bottom of the inner cavity of the knitting machine base box 1, and its output shaft is fixedly connected to the U-shaped plate 22 to drive the U-shaped plate 22 to rotate. The guide roller 23 and the V-shaped guide rod 24 are fixedly installed between the two vertically opposite surfaces of the U-shaped plate 22. The V-shaped guide rod 24 is located above the guide roller 23 and is used to guide and comb the fabric. The collecting roller 25 is rotatably installed on the front side of the U-shaped plate 22 and below the fabric edge trimming mechanism 3 for winding up the trimmed fabric. Servo motor 21, controlled by PLC, drives U-shaped plate 22 to rotate, so that the fabric is evenly wound on collecting roller 25. The surface of collecting roller 25 is covered with a rubber layer to increase friction and prevent the fabric from slipping. V-shaped guide rod 24 is used to guide the fabric to the center position. The guide roller 23 has a smooth surface to reduce fabric friction. After passing through guide roller 23, the fabric enters fabric edge trimming mechanism 3 to ensure that the fabric is flat and wrinkle-free before trimming. The tension of the fabric between V-shaped guide rod 24 and guide roller 23 is kept constant by adjusting the speed of servo motor 21 to avoid the fabric being too loose or too tight, which would affect the trimming effect.

[0020] The following section will explain in detail the fabric's raw edge trimming mechanism and the working principle of the knitting machine.

[0021] like Figure 1-6 As shown, the fabric is first guided and combed by the V-shaped guide bar 24 to ensure it enters the fabric edge trimming mechanism 3 smoothly. The guide roller 23 further guides the fabric to prevent deviation. When the fabric passes through the fabric edge trimming mechanism 3, the servo motor 253 drives the trimming blade 354 to rotate at high speed. The threads or frayed edges on the fabric surface enter the trimming box 351 through the trimming hole of the perforated stainless steel cover 355 and are cut off by the rotating trimming blade 354. The spring 33 makes the V-shaped plate 34 adapt to the fabric thickness to ensure uniform trimming effect. The lint generated during trimming is removed through the air extraction hole 3. The 56 fibers are sucked into the V-shaped suction pipe 36, and then enter the lint collection mechanism 4 through the extension pipe 37. The air pump 41 generates negative pressure, drawing the lint into the suction box 42. The circular filter screen 44 intercepts the lint, and clean air is discharged. The lint on the circular filter screen 44 can be cleaned by periodically unscrewing the disassembly cover 45. The trimmed fabric is wound up by the collection roller 25. The servo motor 21 drives the U-shaped plate 22 to rotate, making the winding process smooth and uniform. The entire mechanism has a high degree of automation, can effectively handle fabric frayed edges, improve fabric quality and production efficiency, and is easy to operate and maintain. It is suitable for various knitted fabric processing scenarios.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fabric raw edge trimming mechanism, characterized in that: The system includes a fabric edge trimming mechanism (3) and a lint collection mechanism (4). The fabric edge trimming mechanism (3) includes two opposing U-shaped side plates (31). A connecting slide rod (32) is fixedly connected between the horizontally opposite surfaces of the two U-shaped side plates (31). V-shaped plates (34) are slidably installed on the front and rear sides of the outer wall of the connecting slide rod (32). A spring (33) is fixedly connected between the horizontally opposite surfaces of the V-shaped plates (34) and the U-shaped side plates (31). Several fabric trimming mechanisms (35) are installed along a V-shaped path between the opposite surfaces of the two V-shaped plates (34). Each of the several fabric trimming mechanisms (35) includes a trimming box (35). 1) The two trimming boxes (351) facing each other are fixedly installed with a protective box (352) and a servo motor (353) on their back sides. The servo motor (353) is located in the inner cavity of the protective box (352). The output shaft of the protective box (352) passes through the inner cavity of the trimming box (351) and is fixedly installed with several trimming blades (354) in a ring array. A perforated stainless steel cover (355) is threaded on the side of the trimming box (351) away from the protective box (352). The perforated stainless steel cover (355) has several through trimming holes for the wire ends to pass through. The perforated stainless steel cover (355) is located on one side of the trimming blades (354).

2. The fabric edge trimming mechanism according to claim 1, characterized in that: A number of fabric trimming mechanisms (35) on opposite sides of the two V-shaped plates (34) are fixedly installed with V-shaped air extraction pipes (36). Each of the trimming boxes (351) has an air extraction hole (356) that penetrates its inner cavity. The air extraction hole (356) penetrates into the inner cavity of the V-shaped air extraction pipe (36). Both V-shaped air extraction pipes (36) are fixedly connected with extension pipes (37) for negative pressure air extraction.

3. The fabric edge trimming mechanism according to claim 2, characterized in that: The lint collection mechanism (4) includes an air pump (41), which is installed on the rear side of the fabric edge trimming mechanism (3). The air pump (41) is fixedly connected to an air extraction box (42) at the air extraction end. A limiting ring (43) is fixedly installed on the inner ring of the air extraction box (42). A circular filter screen (44) is attached to the front side of the limiting ring (43). The diameter of the circular filter screen (44) is the same as the inner diameter of the air extraction box (42).

4. The fabric edge trimming mechanism according to claim 3, characterized in that: The front side of the air extraction box (42) is snapped with a disassembly cover (45), and the ends of the two extension tubes (37) away from the V-shaped plate (34) are both extended to the inside of the disassembly cover (45). A rubber ring is fixedly bonded to the outer wall of the snap-fit ​​joint between the air extraction box (42) and the disassembly cover (45).

5. A knitting machine, characterized in that: The fabric edge trimming mechanism according to any one of claims 1-4 further includes a knitting machine base box (1), wherein a rotating fabric collecting mechanism (2) is provided in the inner cavity of the knitting machine base box (1), the rotating fabric collecting mechanism (2) includes a servo motor (21), the servo motor (21) is fixedly installed at the bottom of the inner cavity of the knitting machine base box (1), and a U-shaped plate (22) is fixedly installed on the output shaft of the servo motor (21). The fabric edge trimming mechanism (3) includes two U-shaped side plates (31) which are respectively fixedly installed on the opposite vertical surfaces of the two U-shaped plates (22). A collecting roller (25) is rotatably installed on the front side of the U-shaped plate (22), the collecting roller (25) is located below the fabric edge trimming mechanism (3) and is used to roll up the trimmed fabric. The lint collecting mechanism (4) includes an air pump (41) which is fixedly installed on the rear side of the U-shaped plate (22).

6. A knitting machine according to claim 5, characterized in that: A guide roller (23) and a V-shaped guide rod (24) are fixedly installed between the two vertical opposite surfaces of the U-shaped plate (22). The V-shaped guide rod (24) is located above the guide roller (23). The V-shaped guide rod (24) is composed of two rods forming a V shape and is used to guide the fabric. The guide roller (23) is located above the fabric edge trimming mechanism (3) and is used to guide the fabric before trimming.

7. A knitting machine according to claim 6, characterized in that: The knitting machine base box (1) has a door (11) hinged to the front side.

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