Selvedge flattening device for a knitted fabric heat setting machine

Abstract

The utility model discloses a cloth edge flattening device of knitted cloth heat setting machine belongs to textile machinery technical field, and this device includes the flattening frame and installs the width -expanding subassembly in flattening frame, and the width -expanding subassembly includes auxiliary roll and screw roll, and the width -expanding subassembly still includes quick release subassembly for installing screw roll, and this quick release subassembly includes fixed base, first rotating column, second rotating column, clamp, first fixed block, second fixed block and screw, and the clamp is used for clamping screw roll, and realizes the opening and closing through rotating column, and the screw is used for locking fixed block to fix the clamp, and the device still is provided with the air nozzle to screw roll. The utility model discloses through setting up quick release subassembly, solved screw roll dismounting replacement complicated, time -consuming long problem, greatly simplified maintenance process, and through the two -stage width -expanding of auxiliary roll and screw roll improved the flattening effect, and through the air nozzle kept the cleanness of screw roll.

Description

Technical Field

[0001] This utility model relates to the field of textile machinery technology, and in particular to a selvage flattening device for a knitted fabric heat setting machine. Background Technology

[0002] Knitted fabric heat setting machines are key pieces of equipment in the textile dyeing and finishing industry. They are used to stretch, dry, and heat-set knitted fabrics to stabilize fabric dimensions, eliminate wrinkles, and improve hand feel. Before the knitted fabric enters the chain clamps or needle plates of the heat setting machine, its easily curled selvage must be effectively flattened. Therefore, selvage flattening devices are an indispensable accessory for heat setting machines.

[0003] Currently, the most widely used fabric selvage flattening devices employ a threaded roller (also known as a spreading roller) structure. These devices utilize the special threads on the surface of the threaded roller (usually a symmetrical design with left-hand and right-hand threads) to apply an outward-expanding tension to the contacting fabric selvage as the roller rotates, thereby forcibly unfolding the curled selvage and ensuring the fabric proceeds smoothly into the next process.

[0004] However, during long-term production operations, the threaded roller, as the core expansion component, needs to continuously rub against the high-speed moving fabric with its surface threads. This continuous mechanical friction will inevitably cause wear on the threads on the surface of the threaded roller, reducing the expansion effect; on the other hand, fabric lint and fibers are also easy to fall off and accumulate in the grooves of the threaded roller, which will also affect the flattening accuracy.

[0005] Therefore, threaded rollers require periodic downtime for cleaning or replacement. In existing technologies, threaded rollers are typically fixed to the equipment frame using bearing housings, end caps, and fastening bolts, resulting in a complex installation structure. When a worn threaded roller needs replacement, operators must disassemble multiple fasteners and auxiliary parts; the entire disassembly and assembly process is cumbersome and time-consuming, leading to excessive downtime for equipment maintenance. This directly impacts the continuous operating efficiency of the entire heat-setting production line.

[0006] Therefore, this utility model proposes a selvage flattening device for a knitted fabric heat setting machine to overcome the shortcomings of the prior art. Utility Model Content

[0007] To overcome the above shortcomings, this utility model provides a fabric edge flattening device for a knitted fabric heat setting machine, aiming to improve the existing fabric edge flattening devices for knitted fabric heat setting machines. The core expanding roller is easily contaminated by fabric lint during operation, resulting in a decrease in performance. Moreover, when it is worn, the disassembly and replacement process is complicated and time-consuming, affecting production efficiency. At the same time, there is a lack of preliminary treatment for severely curled fabric edges, which easily leads to incomplete flattening.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a fabric selvage flattening device for a knitted fabric heat setting machine, comprising: a flattening frame; and an expansion component, wherein the expansion component is installed inside the flattening frame, and the expansion component includes an auxiliary roller and a thread roller.

[0009] The expansion assembly also includes a quick-release assembly for mounting the threaded roller.

[0010] The quick-release assembly includes a fixed base, a second rotating column, a first rotating column, a clamp, a first fixing block, a second fixing block, and screws.

[0011] In terms of structural relationship, the fixed base is used to support the threaded roller; the second rotating column is fixedly connected to the fixed base; the first rotating column is rotatably connected to the outer wall of the second rotating column; the clamp is used to clamp the threaded roller, and the clamp, the first rotating column and the first fixed block form an integrated fixing structure; the screw passes through the first fixed block and is used to fix the first fixed block and the second fixed block.

[0012] Preferably, the expansion assembly further includes a second motor, a second pulley, a first pulley, and a belt; the second motor drives the second pulley, the second pulley is connected to the first pulley via the belt, and the belt drives the auxiliary roller and the quick-release assembly to rotate.

[0013] Preferably, a fixing tube is installed on the inner wall of the flattening frame and directly above the threaded roller, and an air nozzle is fixedly connected to the outer wall of the fixing tube, with the air nozzle facing the threaded roller.

[0014] Preferably, the flattening frame is fixedly connected to two sides of the entry end with fixing plates.

[0015] Preferably, a first guide roller and a second guide roller are mounted on the fixed plate.

[0016] Preferably, a first motor is fixedly connected to the outer surface of the fixing plate, and the first motor drives the second guide roller to rotate.

[0017] Preferably, a third guide roller is also installed inside the flattening frame at the fabric entry end of the spreading component.

[0018] Preferably, the surface of the auxiliary roller has shallow threads.

[0019] This utility model has the following beneficial effects: 1. In this utility model, by installing a fixed pipe directly above the threaded roller and connecting an air nozzle facing the threaded roller to the fixed pipe, the problem that the threaded roller used for widening is easily contaminated by fabric edge debris during operation, resulting in a decrease in the flattening effect, is solved. This achieves the technical effect of continuously blowing away debris, keeping the threaded roller clean, ensuring the stability and accuracy of the flattening function, and improving the product processing quality.

[0020] 2. This utility model, by designing a quick-release assembly consisting of a fixed base, rotating column, clamp, fixing block, and screws, solves the problem in the prior art where the core thread roller wears out and the disassembly and replacement process is complex, time-consuming, and seriously affects production efficiency. It achieves the technical effect of enabling quick installation, locking, and disassembly of the thread roller, greatly simplifying the maintenance and replacement process, shortening equipment downtime, and improving production efficiency.

[0021] 3. This utility model, by setting up a two-stage expansion structure of auxiliary roller and threaded roller, allows the fabric to pass through the auxiliary roller first and then enter the threaded roller. This solves the problem in the prior art that there is a lack of preliminary treatment for severely curled fabric edges, and that it is difficult to achieve thorough flattening with only a single threaded roller. It achieves an effective combination of preliminary flattening and precise flattening. The auxiliary roller pre-treats large curls and reduces the burden on the threaded roller, resulting in a more thorough and efficient final fabric edge flattening effect. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of a selvage flattening device for a heat setting machine for knitted fabrics proposed in this utility model. Figure 2 This is a schematic diagram of the threaded roller portion of the selvage flattening device of a heat setting machine for knitted fabrics proposed in this utility model. Figure 3 This is a schematic diagram of the auxiliary roller part of the selvage flattening device of a knitted fabric heat setting machine proposed in this utility model; Figure 4 for Figure 2 Enlarged view of point A in the image; Figure 5 for Figure 3 Enlarged view of point B in the image.

[0023] Legend: 1. Flattening frame; 2. Fixing plate; 3. First guide roller; 4. Second guide roller; 5. First motor; 6. Third guide roller; 7. Spreading assembly; 701. Threaded roller; 702. Auxiliary roller; 703. Air nozzle; 704. Fixing tube; 705. Belt; 706. First pulley; 707. Second pulley; 708. Second motor; 8. Quick release assembly; 801. Fixing base; 802. Clamp; 803. First fixing block; 804. Second fixing block; 805. Screw; 806. First rotating column; 807. Second rotating column. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please refer to Figures 1 to 5 This utility model provides a fabric edge flattening device for a knitted fabric heat setting machine, which aims to solve the problem that the core expanding roller of the fabric edge flattening device of the existing knitted fabric heat setting machine is easily contaminated by fabric lint during operation, resulting in a decrease in effect. Moreover, when it is worn, the disassembly and replacement process is complicated and time-consuming, affecting production efficiency. At the same time, there is a lack of preliminary treatment for severely curled fabric edges, which easily leads to incomplete flattening.

[0026] The selvage flattening device of the heat setting machine for knitted fabric includes a flattening frame 1 and an expansion component 7 installed in the flattening frame 1.

[0027] Specifically, a fixed plate 2 is fixedly connected to both sides of the entry end of the flattening frame 1; a first guide roller 3 and a second guide roller 4 are installed on the fixed plate 2; a first motor 5 is fixedly connected to the outer surface of the fixed plate 2, and the first motor 5 drives the second guide roller 4 to rotate; a third guide roller 6 is installed at the fabric entry end of the expansion component 7 inside the flattening frame 1.

[0028] The spreading assembly 7 includes an auxiliary roller 702 and a threaded roller 701. The surface of the auxiliary roller 702 has shallow threads. The fabric passes through the auxiliary roller 702 before entering the threaded roller 701 to achieve preliminary flattening. Then, the threaded roller 701 performs precise flattening.

[0029] The expansion assembly 7 also includes a quick-release assembly 8 for mounting the threaded roller 701. The structural design of the quick-release assembly 8 is key to enabling rapid replacement of the threaded roller 701. The quick-release assembly 8 includes a fixed base 801, a second rotating column 807, a first rotating column 806, a clamp 802, a first fixing block 803, a second fixing block 804, and screws 805. In the specific assembly relationship, the fixed base 801 supports the threaded roller 701, and the second rotating column 807 is fixedly connected to the fixed base 801 and is a rotating component. Providing a stable axis, the first rotating column 806 is rotatably connected to the outer wall of the second rotating column 807 to form a pivot structure. The clamp 802 is used to hold the threaded roller 701. The clamp 802, the first rotating column 806, and the first fixing block 803 form an integrated fixing structure, so that the opening and closing actions can be linked. The screw 805 passes through the first fixing block 803 and locks the first fixing block 803 and the second fixing block 804, thereby firmly closing the clamp 802 and completing the locking of the threaded roller 701.

[0030] In terms of power drive, the expansion assembly 7 also includes a second motor 708, a second pulley 707, a first pulley 706 and a belt 705. The second motor 708 drives the second pulley 707, and the second pulley 707 is connected to the first pulley 706 through the belt 705. The belt 705 drives the auxiliary roller 702 and the quick-release assembly 8 to rotate, thereby driving the threaded roller 701 to rotate.

[0031] In a preferred embodiment, in order to keep the threaded roller 701 clean during operation, a fixing tube 704 is installed on the inner wall of the flattening frame 1 and directly above the threaded roller 701. An air nozzle 703 is fixedly connected to the outer wall of the fixing tube 704. The air nozzle 703 faces the threaded roller 701 and is used to blow away cloth lint.

[0032] In a preferred embodiment, in order to achieve stable fabric introduction, a fixed plate 2 is fixedly connected to both sides of the entry end of the flattening frame 1. A first guide roller 3 and a second guide roller 4 are installed on the fixed plate 2. The first guide roller 3 and the second guide roller 4 are used to guide the fabric in. A first motor 5 is also fixedly connected to the outer surface of the fixed plate 2. The first motor 5 drives the second guide roller 4 to rotate, providing active power for fabric introduction.

[0033] In a preferred embodiment, in order to pre-treat the fabric before it enters the core spreading component 7, a third guide roller 6 is also installed inside the flattening frame 1 at the fabric entry end of the spreading component 7. The third guide roller 6 is used to initially guide and flatten the fabric.

[0034] In a preferred embodiment, to enhance the initial spreading capability of the auxiliary roller 702, the surface of the auxiliary roller 702 is provided with shallow threads, which help to generate slight tension to both sides when the fabric comes into contact.

[0035] Working principle: When the equipment is running, the knitted fabric first enters from the entry end of the flattening frame 1. Driven by the first motor 5 fixedly connected to the outer surface of the fixed plate 2, the second guide roller 4 rotates as the driving shaft, and the first guide roller 3 rotates as the driven shaft. The first guide roller 3 and the second guide roller 4 together guide the fabric into the equipment. Then the fabric passes through the third guide roller 6 installed at the fabric entry end of the expansion assembly 7. The third guide roller 6 initially flattens the fabric to avoid large folds when the fabric enters the core expansion area.

[0036] After the fabric has been initially flattened, it enters the spreading assembly 7. The fabric first contacts the auxiliary roller 702. The shallow threads on the surface of the auxiliary roller 702 initially flatten and spread the fabric to remove large curls and local folds. Then the fabric enters the threaded roller 701. The threads on the surface of the threaded roller 701 precisely flatten the fabric edges to both sides through a separating action. The coordinated work of the auxiliary roller 702 and the threaded roller 701 ensures an efficient flattening effect and reduces fabric wear.

[0037] During the expansion process, the fixed tube 704, which is installed on the inner wall of the flattening frame 1 and directly above the threaded roller 701, has an air nozzle 703 fixedly connected to its outer wall that continuously blows air toward the threaded roller 701 to blow away the fabric debris remaining on the surface and in the gaps of the threaded roller 701, ensuring that the threaded roller 701 is always clean and does not affect the flattening function.

[0038] The rotational power of the aforementioned expansion component 7 is provided by the second motor 708. The second motor 708 drives the second pulley 707, which is connected to the first pulley 706 via a belt 705. This transmission structure drives the auxiliary roller 702 and the quick-release component 8 to rotate synchronously. Since the threaded roller 701 is installed inside the quick-release component 8, it rotates together with the quick-release component 8.

[0039] When maintenance or replacement of the thread roller 701 is required, the quick-release assembly 8 operates as follows: The operator first rotates the first fixing block 803. Since the first fixing block 803, clamp 802, and first rotating column 806 form an integrated fixing structure, the first rotating column 806 will rotate around the second rotating column 807 fixed on the fixing seat 801, thereby opening the clamp 802 used to hold the thread roller 701. At this time, the thread roller 701 can be removed from or placed on the fixing seat 801 used to support the thread roller 701. After placing the thread roller 701, the clamp 802 is closed, the first fixing block 803 and the second fixing block 804 are pinched, and the screw 805 is rotated. The screw 805 passes through the first fixing block 803 and firmly locks the first fixing block 803 and the second fixing block 804, thus completing the quick fixing of the thread roller 701.

Claims

1. A selvage flattening device for a knitted fabric heat setting machine, comprising: Flattening rack (1); Expanding assembly (7), which is installed inside the flattening frame (1), includes an auxiliary roller (702) and a threaded roller (701). The expansion assembly (7) is characterized in that it further includes a quick-release assembly (8) for mounting the threaded roller (701). The quick-release assembly (8) includes a fixed base (801), a second rotating column (807), a first rotating column (806), a clamp (802), a first fixing block (803), a second fixing block (804), and a screw (805). The fixed base (801) is used to support the threaded roller (701). The second rotating column (807) is fixedly connected to the fixed base (801). The first rotating column (806) is rotatably connected to the outer wall of the second rotating column (807). The clamp (802) is used to clamp the threaded roller (701). The clamp (802), the first rotating column (806), and the first fixing block (803) form an integrated fixing structure. The screw (805) passes through the first fixing block (803) to fix the first fixing block (803) and the second fixing block (804).

2. The selvage flattening device for a knitted fabric heat setting machine according to claim 1, characterized in that, The expansion assembly (7) further includes a second motor (708), a second pulley (707), a first pulley (706), and a belt (705); the second motor (708) drives the second pulley (707), the second pulley (707) is connected to the first pulley (706) through the belt (705), and the belt (705) drives the auxiliary roller (702) and the quick-release assembly (8) to rotate.

3. The selvage flattening device for a knitted fabric heat setting machine according to claim 1, characterized in that, A fixing tube (704) is installed on the inner wall of the flattening frame (1) and directly above the threaded roller (701). An air nozzle (703) is fixedly connected to the outer wall of the fixing tube (704), and the air nozzle (703) faces the threaded roller (701).

4. The selvage flattening device for a knitted fabric heat setting machine according to claim 1, characterized in that, The flattening frame (1) has fixed plates (2) fixedly connected to both sides of the entry end.

5. The selvage flattening device for a knitted fabric heat setting machine according to claim 4, characterized in that, The fixed plate (2) is equipped with a first guide roller (3) and a second guide roller (4).

6. The selvage flattening device for a knitted fabric heat setting machine according to claim 5, characterized in that, The outer surface of the fixed plate (2) is fixedly connected to a first motor (5), which drives the second guide roller (4) to rotate.

7. The selvage flattening device for a knitted fabric heat setting machine according to claim 1, characterized in that, The flattening frame (1) is also equipped with a third guide roller (6) at the fabric entry end of the expansion assembly (7).

8. The selvage flattening device for a knitted fabric heat setting machine according to claim 1, characterized in that, The surface of the auxiliary roller (702) has shallow threads.

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