Tension-adjustable circular knitting machine

Abstract

The utility model provides a circular knitting machine with adjustable tension, which relates to the field of circular knitting machines and comprises a circular knitting machine body, an adjusting component is arranged in an inner cavity of the circular knitting machine body, a guide roller is arranged on the lower side of the adjusting component, a wind-up roller is arranged on the lower side of the guide roller, the adjusting component comprises an adjusting frame, and the adjusting frame is arranged on the inner cavity of the circular knitting machine body. The adjusting frames are fixed to the cavity walls of the two sides of an inner cavity of the circular knitting machine body through fixing rods on the outer sides, telescopic rods are connected between the adjusting frames, meanwhile, a first groove plate and a second groove plate are connected between the telescopic rods, a motor is connected to the outer side of the second groove plate, and a first synchronous toothed belt and a second synchronous toothed belt are connected to the two sides of the motor. The outer end of the first synchronous toothed belt is connected with a first driving shaft, and the outer end of the second synchronous toothed belt is connected with a second driving shaft. The cloth cover conveying device has the effects of quickly and conveniently carrying out clamping and tension traction on the two sides of a cloth cover, has the synchronous clamping and traction effects, and ensures that the cloth cover is conveyed tidily and stably.

Description

Technical Field

[0001] This utility model relates to the field of circular knitting machines, specifically to an adjustable tension circular knitting machine. Background Technology

[0002] The circular knitting machine, also known as a circular weft knitting machine or a circular weft knitting machine, has developed rapidly due to its multiple loop-forming systems, high speed, high output, fast pattern changes, good fabric quality, fewer processes, and strong product adaptability. Yarn is woven into fabric by a knitting device, and the fabric is then conveyed to the winding device by pressure rollers for winding.

[0003] A search revealed existing technology (publication number: CN212152611U), which describes "a circular knitting machine with adjustable pressure plates, comprising a circular knitting machine body, with mounting boxes fixedly connected to the top of both sides of the inner cavity of the circular knitting machine body, a partition fixedly connected between the top and bottom of the inner cavity of the mounting boxes, and a motor fixedly connected to one side of the inner cavity of the mounting boxes. This utility model, by setting up mounting boxes, partitions, motors, first threaded rods, first threaded sleeves, mounting plates, sliders, slide grooves, limiting grooves, second threaded sleeves, first connecting rods, first limiting plates, first pressure plates, first guide rollers, third threaded sleeves, second connecting rods, second limiting plates, second pressure plates, second guide rollers, handwheels, second threaded rods, and pulleys, solves the problem of fabric folding during winding caused by different fabric tensions in existing circular knitting machines. This circular knitting machine with adjustable pressure plates has the advantage of adjusting fabric tension using pressure plates and is worthy of promotion."

[0004] While existing adjustable pressure plate circular knitting machines offer some advantages in regulating fabric tension, they still have some shortcomings. Firstly, existing adjustable circular knitting machines rely on manual handwheel adjustments for tension control. Secondly, manual operation cannot guarantee that the clamping force on both sides of the fabric edge is equal. Furthermore, any difference in clamping force will cause skewing and folding during fabric feeding and winding. Therefore, the aforementioned technical solutions have certain defects. Additionally, manual adjustment cannot be performed synchronously and is inefficient. Utility Model Content

[0005] To overcome the shortcomings of the existing technology, an adjustable tension circular knitting machine is provided to solve the problems mentioned in the background.

[0006] To achieve the above objectives, an adjustable tension circular knitting machine is provided, comprising: a circular knitting machine body, an adjustment assembly provided in the inner cavity of the circular knitting machine body, a guide roller provided on the lower side of the adjustment assembly, and a take-up roller provided on the lower side of the guide roller; the adjustment assembly includes an adjustment frame, and the adjustment frame is fixed to the two side walls of the inner cavity of the circular knitting machine body by an outer fixing rod; a telescopic rod is connected between the adjustment frame, and a first grooved plate and a second grooved plate are connected between the telescopic rods; a motor is connected to the outer side of the second grooved plate, and a first synchronous toothed belt and a second synchronous toothed belt are connected to both sides of the motor. A synchronous toothed belt is provided, with the outer end of the first synchronous toothed belt connected to a first drive shaft and the outer end of the second synchronous toothed belt connected to a second drive shaft. A guide plate is provided on the inner side of the adjusting frame, and an electric push rod is connected to the inner side of the guide plate. The inner end of the electric push rod is slidably connected to a mounting frame through the drive frame. At the same time, a guide roller is installed on the inner side of the mounting frame. A movable clamping plate is slidably connected to the front and rear sides of the mounting frame, and a screw block is connected to one end of the movable clamping plate. A double threaded screw is screwed into the inner side of the screw block, and the front end of the double threaded screw is connected to the first drive shaft and the second drive shaft respectively.

[0007] Furthermore, the adjustment frame is designed with an N-shaped structure, and the adjustment frame has two sets of openings facing each other.

[0008] Furthermore, the guide plate is fixed to the inner wall of the adjusting frame, and a guide groove is provided inside the guide plate, through which the movable clamp slides.

[0009] Furthermore, a limiting rod is connected to the outer side of the screw block, and the outer end of the limiting rod is slidably connected to a limiting groove opened on the inner wall of the adjusting frame.

[0010] Furthermore, the outer end of the mounting bracket is connected to a slider, and the slider is slidably connected in a groove opened in the inner side wall of the movable clamp.

[0011] Furthermore, the telescopic rod is symmetrically slidably inserted into the interior of the first and second slot plates, and slots are provided at both ends of the first and second slot plates.

[0012] Furthermore, the output shaft of the motor is connected to two synchronous pulleys, and the first drive shaft and the second drive shaft are connected to each other with synchronous pulleys, and the lengths of the first drive shaft and the second drive shaft are different.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. During use, the fabric passes between the first and second groove plates. At this time, the electric push rod, drive frame, slider and slide groove facilitate the movement of the drive mounting frame, so that the guide roller is placed at the edge of the fabric. Then the motor is started, so that the motor drives the two double-thread screws inside the adjustment frame to rotate synchronously through the synchronous toothed belt, synchronous pulley and drive shaft. Then, through the screw block, the moving clamp plate moves closer and moves, so that the guide roller clamps the edge of the fabric. Then, the electric push rod is started at the same time, so that the electric push rod drives the guide roller away through the drive frame, thereby achieving the tension stretching effect on the edge of the fabric.

[0015] 2. By utilizing a motor, synchronous toothed belt, synchronous pulley, drive shaft, double threaded screw, and screw block, the movement of the moving clamping plate can be easily driven synchronously, which in turn facilitates the movement of the guide roller. This ensures consistent tension and prevents the fabric from being skewed or folded due to inconsistent clamping force after clamping. It also replaces the inconvenience of manual operation and improves operational efficiency. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of an embodiment of the present utility model.

[0017] Figure 2 This is a top view of the adjustment component according to an embodiment of the present invention.

[0018] Figure 3 This is a top view of the adjustment frame according to an embodiment of the present invention.

[0019] Figure 4 This is an embodiment of the present utility model. Figure 3 Schematic diagram of the structure at point A in the middle.

[0020] In the diagram: 1. Circular mill body; 2. Adjustment assembly; 21. Adjustment frame; 211. Guide plate; 212. Guide groove; 213. Electric push rod; 2131. Drive frame; 214. Moving clamp; 215. Screw block; 216. Limiting rod; 217. Double threaded screw; 218. Mounting frame; 2181. Guide roller; 2182. Slider; 22. Telescopic rod; 23. First groove plate; 24. Second groove plate; 25. Motor; 251. First synchronous toothed belt; 252. Second synchronous toothed belt; 253. First drive shaft; 254. Second drive shaft; 26. Fixing rod; 3. Guide roller; 4. Take-up roller. Detailed Implementation

[0021] Reference Figures 1 to 4As shown, this utility model provides an adjustable tension circular knitting machine, including: a circular knitting machine body 1, an adjustment component 2 provided in the inner cavity of the circular knitting machine body 1, a guide roller 3 provided on the lower side of the adjustment component 2, and a take-up roller 4 provided on the lower side of the guide roller 3. The adjustment component 2 includes an adjustment frame 21, and the adjustment frame 21 is fixed to the two side cavity walls of the inner cavity of the circular knitting machine body 1 by an outer fixing rod 26. A telescopic rod 22 is connected between the adjustment frames 21, and a first groove plate 23 and a second groove plate 24 are connected between the telescopic rods 22. A motor 25 is connected to the outer side of the second groove plate 24, and a first synchronous toothed belt 251 and a second synchronous toothed belt 252 are connected to both sides of the motor 25. The outer end of the first drive shaft 253 is connected to the outer end of the second synchronous toothed belt 252, and the outer end of the second drive shaft 254 is connected to the outer end of the adjustment frame 21. The inner side of the adjustment frame 21 is provided with a guide plate 211, and the inner side of the guide plate 211 is connected with an electric push rod 213. The inner end of the electric push rod 213 is slidably connected to a mounting frame 218 through the drive frame 2131. At the same time, the inner side of the mounting frame 218 is equipped with a guide roller 2181. The front and rear sides of the mounting frame 218 are slidably connected with a movable clamping plate 214, and one end of the movable clamping plate 214 is connected with a screw block 215. The inner side of the screw block 215 is screwed with a double threaded screw 217, and the front end of the double threaded screw 217 is connected to the first drive shaft 253 and the second drive shaft 254 respectively.

[0022] In this embodiment, the adjustment component 2 is installed on the discharge port side of the circular knitting machine body 1, and the circular knitting machine body 1 is configured as a circular knitting machine structure.

[0023] Specifically, the mounting frame 218 and the guide roller 2181 are provided in multiple sets in the vertical direction of the moving clamp 214, and the guide roller 2181 is consistent with the relevant structure involved in the prior art document.

[0024] Specifically, in the same adjustment frame 21, the movable clamping plate 214 is provided with two sets, front and rear, and is connected to different thread sections of the double thread screw 217 through two screw blocks 215.

[0025] like Figure 2 , Figure 3 and Figure 4In the design, the adjusting frame 21 is designed with an N-shaped structure and has two sets of openings facing each other. The guide plate 211 is fixed to the inner wall of the adjusting frame 21, and the guide plate 211 has a guide groove 212 inside. The movable clamping plate 214 slides through the guide groove 212. The outer side of the screw block 215 is connected to a limiting rod 216, and the outer end of the limiting rod 216 is slidably connected to the limiting groove opened in the inner wall of the adjusting frame 21. The outer end of the mounting frame 218 is connected to a slider 2182, and the slider 2182 is slidably connected in the sliding groove opened in the inner side wall of the movable clamping plate 214. The telescopic rod 22 is symmetrically slidably inserted into the interior of the first slot plate 23 and the second slot plate 24, and slots are opened at both ends of the first slot plate 23 and the second slot plate 24. The output shaft end of the motor 25 is connected to two synchronous pulleys, and the front and rear of the first drive shaft 253 and the second drive shaft 254 are connected to synchronous pulleys, and the lengths of the first drive shaft 253 and the second drive shaft 254 are different.

[0026] As a preferred implementation, by setting the guide plate 211 and the guide groove 212, the movement guidance and support effect of the movable clamping plate 214 is achieved on the one hand, and the installation and fixing effect of the electric push rod 213 is achieved on the other hand.

[0027] Specifically, the drive frame 2131 is designed as an N-shaped frame structure, and both ends of the drive frame 2131 are slidably connected to the guide rail grooves opened on the outer wall of the mounting frame 218. The guide rail grooves are provided with sliding rods, and the outer end of the drive frame 2131 is slidably sleeved on the outside of the sliding rods. This achieves a sliding connection with the mounting frame 218 while also moving linearly with it in the horizontal direction, thereby achieving the outward tension pulling effect of the guide roller 2181.

[0028] In another embodiment, the fixing rod 26 can be configured as a cylinder structure, so that the tensioning and replacement of the synchronous toothed belt can be achieved through the telescopic rod 22, the first groove plate 23 and the second groove plate 24.

[0029] In use, the fabric passes between the first and second groove plates. At this time, the electric push rod, drive frame, slider, and slide groove facilitate the movement of the drive mounting frame, thereby placing the guide roller at the edge of the fabric. Then, the motor is started, and the motor drives the two double-threaded screws inside the adjustment frame to rotate synchronously through the synchronous toothed belt, synchronous pulley, and drive shaft. This drives the moving clamp plate to move closer through the screw block, so that the guide roller clamps the edge of the fabric. At the same time, the electric push rod is started, and the electric push rod drives the guide roller away through the drive frame, thereby achieving the tension stretching effect on the edge of the fabric.

[0030] The adjustable tension circular knitting machine of this invention can effectively solve the problems mentioned in the background technology. Based on the existing adjustable tension circular knitting machine technology, it can quickly and conveniently clamp and tension the two sides of the fabric, and maintain the synchronous clamping and tensioning effect, ensuring the neatness and stability of the fabric conveying.

Claims

1. An adjustable tension circular knitting machine comprising: The large circular machine body (1) is characterized in that: the inner cavity of the large circular machine body (1) is provided with an adjusting assembly (2), the lower side of the adjusting assembly (2) is provided with a guide roller (3), and the lower side of the guide roller (3) is provided with a winding roller (4), the adjusting assembly (2) comprises an adjusting frame (21), the adjusting frame (21) is fixed on the two side cavity walls in the inner cavity of the large circular machine body (1) through the outer side fixing rods (26), the adjusting frames (21) are connected with telescopic rods (22), the telescopic rods (22) are connected with first and second slot plates (23) and (24), the outer side of the second slot plate (24) is connected with a motor (25), the two sides of the motor (25) are connected with first and second synchronous toothed belts (251) and (252), the outer end of the first synchronous toothed belt (251) is connected with a first driving shaft (253), the outer end of the second synchronous toothed belt (252) is connected with a second driving shaft (254), the inner side of the adjusting frame (21) is provided with a guide plate (211), the inner side of the guide plate (211) is connected with an electric push rod (213), the inner side end of the electric push rod (213) is connected with a mounting frame (218) through a driving frame (2131), the inner side of the mounting frame (218) is provided with a cloth guide roller (2181), the front and rear sides of the mounting frame (218) are slidably connected with movable clamping plates (214), one end of the movable clamping plate (214) is connected with a screw block (215), the inner side of the screw block (215) is screwed with a double screw rod (217), and the front ends of the double screw rods (217) are connected with the first and second driving shafts (253) and (254) respectively.

2. A machine according to claim 1, characterized in that, The adjusting frame (21) is arranged in an N-shaped structure, and the adjusting frame (21) has two groups of openings opposite to each other.

3. A machine according to claim 1, characterized in that, The guide plate (211) is fixed on the inner wall of the adjusting frame (21), the inner side of the guide plate (211) is provided with a guide groove (212), and the movable clamping plate (214) slides through the guide groove (212).

4. A gaugeable circular knitting machine according to claim 1, characterized in that, The outer side of the screw block (215) is connected with a limiting rod (216), and the outer end of the limiting rod (216) is slidably connected with the limiting groove formed in the inner wall of the adjusting frame (21).

5. A tension adjustable knitting machine according to claim 1, characterized in that, The outer end of the mounting frame (218) is connected with a sliding block (2182), and the sliding block (2182) is slidably connected in the sliding groove formed in the inner side wall of the movable clamping plate (214).

6. A gaugeable tension knitting circular machine according to claim 1, characterized in that, The telescopic rods (22) are symmetrically and slidably inserted into the interiors of the first and second slot plates (23) and (24), and the two ends of the first and second slot plates (23) and (24) are provided with insertion grooves.

7. A gaugeable circular knitting machine according to claim 1, characterized in that, The output shaft end of the motor (25) is connected with two synchronous pulleys, the front and rear sides of the first and second driving shafts (253) and (254) are connected with synchronous pulleys, and the lengths of the first and second driving shafts (253) and (254) are different.

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