Circular knitting machine with adjustable silk thread tensity

Abstract

The circular knitting machine comprises a circular knitting machine body, a silk guide assembly and a pressure sensor, the silk guide assembly and the pressure sensor are installed on the circular knitting machine body, a plurality of cams are movably connected to a top frame body of the circular knitting machine body, and the top ends of the cams are fixedly connected with supporting plates. A fixing cylinder is fixedly connected to the upper surface of the supporting plate, an adjustable supporting assembly is arranged on the outer side of the fixing cylinder, a fixing frame is fixedly connected to the top of the circular knitting machine body, a threaded rod is movably connected to the fixing frame, a fixing plate is movably connected to the outer side of the threaded rod, and a plurality of guide rods are movably connected to one side of the fixing plate; according to the silk thread tensioning device, the tensioning force of a pull thread can be adjusted, meanwhile, silk thread rolls with different internal diameters can be conveniently supported and positioned, and silk threads can be guided through the guide rollers.

Description

Technical Field

[0001] This utility model relates to the field of circular knitting machines, and in particular to a circular knitting machine with adjustable yarn tension. Background Technology

[0002] A circular knitting machine is a type of machinery used in the textile industry, primarily for producing knitted fabrics. This machine uses multiple yarn bobbins to weave yarns into fabrics in a specific order and pattern.

[0003] As disclosed in the patent CN209816415U, a circular knitting machine with adjustable guide yarn tension, the existing technology suffers from the problem that the yarn in the guide hole may become loose during use, affecting subsequent work and resulting in poor quality of the finished knitted product. In addition, the existing guide devices are all fixed and non-adjustable, and the tension cannot be adjusted once installed, which is quite troublesome. In order to better address the above problems, promote the development of the industry's technical level, and improve core competitiveness, this application proposes a new composition structure that is different from the existing technology. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a circular knitting machine with adjustable yarn tension.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A circular knitting machine with adjustable yarn tension includes a circular knitting machine body, a yarn guide assembly mounted on the circular knitting machine body, and a pressure sensor. Multiple cams are movably connected to the top frame of the circular knitting machine body. A support plate is fixedly connected to the top of each cam. A fixed cylinder is fixedly connected to the upper surface of the support plate. An adjustable support assembly is provided on the outer side of the fixed cylinder. A fixed frame is fixedly connected to the top of the circular knitting machine body. A threaded rod is movably connected to the fixed frame. A fixed plate is movably connected to the outer side of the threaded rod. Multiple guide rods are movably connected to one side of the fixed plate. A pressure block is fixedly connected between the multiple guide rods. One side of the pressure block has an arc surface that conforms to the cams. The pressure sensor is fixed to the pressure block and can contact the fixed plate.

[0007] As a further embodiment of this utility model, the support assembly includes a self-locking cylinder, with a conical block fixedly connected to one end of the piston rod of the self-locking cylinder. Multiple sliding grooves are provided on the outer circumference of the fixed cylinder, and clamping plates are movably connected in each of the multiple sliding grooves. A protrusion is fixedly connected to one side of the clamping plate, and the inclined surface of the conical block contacts the inclined surface of the protrusion. A connecting rod is fixedly connected to the inner top wall of the fixed cylinder, and multiple tension springs are fixedly connected to the outer side of the connecting rod, with one end of the tension spring fixed to the clamping plate at the corresponding position.

[0008] As a further embodiment of this utility model, two second telescopic rods are fixedly connected to the inner side of the clamping plate, and the extended ends of the second telescopic rods are fixed to the connecting rods, with a tension spring sleeved on the outer side of the second telescopic rods.

[0009] As a further embodiment of this utility model, the wire guide assembly includes multiple support frames, which are fixed to the top of the large circular knitting machine body by bolts, and a wire roller is movably connected to the top of the support frame.

[0010] As a further embodiment of this utility model, two first telescopic rods are fixedly connected to one side of the fixing frame, and the extended ends of the first telescopic rods are fixed to the fixing plate.

[0011] As a further embodiment of this utility model, a self-locking nut is movably connected to the outer side of the threaded rod, and the self-locking nut is in contact with the fixing frame.

[0012] As a further embodiment of this invention, a knob is fixedly connected to one end of the threaded rod.

[0013] As a further embodiment of this invention, the guide wire assembly is located adjacent to the support plate.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. This utility model adjusts the position of the fixing plate so that the pressure block exerts different degrees of pressure on the cam, thereby increasing the friction between the pressure block and the cam, which in turn slows down the rotation speed of the cam as needed, adjusts the tension of the cable, and improves the flexibility of the device.

[0016] 2. This utility model uses the combination of conical blocks and protrusions to facilitate the support and positioning of wire rolls with different internal diameters, thereby enabling the wire rolls to be unwound stably, expanding its application range and improving the effectiveness of the device.

[0017] 3. This utility model can not only guide the thread through the guide roller, but also further restrict the position of the rotated thread rod through the self-locking nut, so as to avoid the thread rod from easily rotating during long-term use and affecting its use. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a circular knitting machine with adjustable yarn tension proposed in this utility model.

[0019] Figure 2 This is a partial cross-sectional view of a circular knitting machine with adjustable yarn tension proposed in this utility model.

[0020] Figure 3 This is an enlarged structural diagram of part A of a circular knitting machine with adjustable yarn tension proposed in this utility model.

[0021] Figure 4 This is a cross-sectional view of the fixed cylinder structure of a circular knitting machine with adjustable yarn tension proposed in this utility model.

[0022] In the diagram: 1. Large circular knitting machine body; 2. Support plate; 3. Fixed cylinder; 4. Guide roller; 5. Support frame; 6. Cam; 7. Fixed plate; 8. Pressure sensor; 9. Guide rod; 10. Pressure block; 11. First telescopic rod; 12. Fixed frame; 13. Self-locking nut; 14. Threaded rod; 15. Connecting rod; 16. Slide groove; 17. Clamping plate; 18. Conical block; 19. Self-locking cylinder; 20. Protrusion; 21. Tension spring. Detailed Implementation

[0023] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Therefore, all other embodiments of this application described herein, and all embodiments obtained by those skilled in the art without creative effort based on the embodiments in this application, should fall within the scope of protection of this application.

[0024] Reference Figures 1-4A circular knitting machine with adjustable yarn tension includes a circular knitting machine body 1, a yarn guide assembly and a pressure sensor 8 mounted on the circular knitting machine body 1. The pressure sensor 8 is wireless, model JYB-KB-CW-2000, and transmits data to a matching receiving device via a transmission system. The data from the pressure sensor 8 can be displayed in real time. The yarn guide assembly includes multiple support frames 5, which are bolted to the top of the circular knitting machine body 1. A guide roller 4 is rotatably connected to the top of the support frame 5. Multiple cams 6 are rotatably connected to the top of the top frame of the circular knitting machine body 1. The top of each of the multiple cams 6 is bolted to a support plate 2. A fixing cylinder 3 is bolted to the upper surface of the support plate 2. An adjustable support assembly is provided on the outside of the fixing cylinder 3. The support assembly includes a self-locking cylinder 19 and a piston of the self-locking cylinder 19. One end of the rod is fixed with a conical block 18 by bolts. Multiple grooves 16 are formed on the outer circumference of the fixed cylinder 3. Clamping plates 17 are slidably connected within each groove 16. A protrusion 20 is fixed to one side of each clamping plate 17 by bolts, and the inclined surface of the conical block 18 contacts the inclined surface of the protrusion 20. A connecting rod 15 is fixed to the inner top wall of the fixed cylinder 3 by bolts. Multiple tension springs 21 are fixed to the outer side of the connecting rod 15 by bolts, and one end of each tension spring 21 is fixed to a corresponding clamping plate 17. When the thread is wound into the fixed cylinder 3, the self-locking cylinder 19 extends, causing the conical block 18 to move upwards, thus compressing the protrusion 20. At this time, the clamping plate 17 moves along the grooves 16 towards... The outer side moves until the clamping plate 17 contacts the inner side of the yarn, and the tension spring 21 extends, thereby supporting and positioning the yarn. The top of the circular knitting machine body 1 is fixed with a fixed frame 12 by bolts. A threaded rod 14 is rotatably connected to the fixed frame 12, pulling one end of the yarn so that it passes over the top of the guide roller 4. During the weaving process, the circular knitting machine body 1 generates tension on the yarn, thereby causing the cam 6 to rotate and unwind the yarn roll on the fixed cylinder 3. A fixed plate 7 is threadedly connected to the outer side of the threaded rod 14. Multiple guide rods 9 are slidably connected to one side of the fixed plate 7. A pressure block 10 is fixed between the multiple guide rods 9 by bolts. One side of the pressure block 10 is provided with a part that fits against the cam 6. The pressure sensor 8 is fixed to the pressure block 10 on the curved surface. The pressure sensor 8 can contact the fixing plate 7. Rotating the threaded rod 14 causes the fixing plate 7 to move the pressure sensor 8 and the pressure block 10, so that the pressure block 10 contacts the cam 6. Then the fixing plate 7 continues to move, while the position of the pressure block 10 remains unchanged, so that the fixing plate 7 and the pressure sensor 8 make contact. The guide rod 9 provides guidance. By adjusting the pressure applied by the fixing plate 7 to the pressure sensor 8, the pressure block 10 can squeeze the cam 6 to different degrees, thereby increasing the friction between the pressure block 10 and the cam 6. This allows the rotation speed of the cam 6 to be slowed down as needed, thus adjusting the tension of the pull cable.

[0025] In this utility model, it should be noted that two second telescopic rods are fixed to the inner side of the clamping plate 17 by bolts, and the extended ends of the second telescopic rods are fixed to the connecting rod 15. The second telescopic rods can further guide the clamping plate 17, so that the clamping plate 17 can move more stably. The tension spring 21 is sleeved on the outer side of the second telescopic rods. Two first telescopic rods 11 are fixed to one side of the fixing frame 12 by bolts, and the extended ends of the first telescopic rods 11 are fixed to the fixing plate 7. The first telescopic rods 11 can guide the fixing plate 7, so that it can move stably. The outer side of the threaded rod 14 is threaded with a self-locking nut 13, and the self-locking nut 13 is in contact with the fixing frame 12. Rotating the self-locking nut 13 makes it press against the fixing frame 12, thereby further restricting the position of the threaded rod 14 after rotation, preventing the threaded rod 14 from easily rotating during long-term use. One end of the threaded rod 14 is fixed with a knob by bolts, which makes it easy for the operator to rotate the threaded rod 14. The guide wire assembly is located adjacent to the support plate 2.

[0026] Since the main body 1 of the circular knitting machine has many components, the following description and drawings of this utility model only show the first part where the yarn enters the circular knitting machine, namely the unwinding frame, which is responsible for releasing the yarn from the fixed drum 3. After unwinding, the yarn enters the knitting area of ​​the main body 1 of the circular knitting machine through the inlet. During the knitting process, the yarn is pulled to unwind the yarn coil. The other components of the main body 1 of the circular knitting machine are prior art and are not within the main protection scope of this application, so they will not be described in detail.

[0027] Working principle: When the tension of the yarn needs to be adjusted, the yarn is first wound into the fixed drum 3. Then, the self-locking cylinder 19 is activated. The self-locking cylinder 19 extends, causing the conical block 18 to move upward, thereby compressing the protrusion 20. At this time, the clamping plate 17 moves outward along the slide groove 16 until the clamping plate 17 contacts the inner side of the yarn, and the tension spring 21 extends, thus supporting and positioning the yarn. Then, one end of the yarn is pulled to pass over the top of the guide roller 4. During the weaving process, the circular knitting machine body 1 generates tension on the yarn, thereby causing the cam 6 to rotate and unwind the yarn wound on the fixed drum 3. When it is necessary to adjust the tension of the wire, rotate the threaded rod 14 to move the fixed plate 7, which in turn moves the pressure sensor 8 and the pressure block 10, so that the pressure block 10 contacts the cam 6. Then the fixed plate 7 continues to move, while the position of the pressure block 10 remains unchanged, so that the fixed plate 7 and the pressure sensor 8 make contact. The guide rod 9 guides the wire. By adjusting the pressure applied by the fixed plate 7 to the pressure sensor 8, the pressure block 10 squeezes the cam 6 to different degrees, thereby increasing the friction between the pressure block 10 and the cam 6. This causes the rotation speed of the cam 6 to be reduced as needed, thus adjusting the tension of the wire.

[0028] This utility model has been described through the above embodiments. Those skilled in the art will understand that this utility model is not limited to the above embodiments. Many more modifications can be made based on the teachings of this utility model, and all such modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A circular knitting machine with adjustable yarn tension, comprising a circular knitting machine body (1), a yarn guide assembly and a pressure sensor (8) mounted on the circular knitting machine body (1), characterized in that, Multiple cams (6) are movably connected to the top frame of the large circular knitting machine body (1). A support plate (2) is fixedly connected to the top of each of the multiple cams (6). A fixed cylinder (3) is fixedly connected to the upper surface of the support plate (2). An adjustable support component is provided on the outside of the fixed cylinder (3). A fixed frame (12) is fixedly connected to the top of the large circular knitting machine body (1). A threaded rod (14) is movably connected to the fixed frame (12). A fixed plate (7) is movably connected to the outside of the threaded rod (14). Multiple guide rods (9) are movably connected to one side of the fixed plate (7). A pressure block (10) is fixedly connected between the multiple guide rods (9). An arc surface that fits against the cam (6) is provided on one side of the pressure block (10). The pressure sensor (8) is fixed to the pressure block (10). The pressure sensor (8) can contact the fixed plate (7).

2. A circular knitting machine with adjustable thread tension according to claim 1, characterized in that The support assembly includes a self-locking cylinder (19), one end of the piston rod of the self-locking cylinder (19) is fixedly connected to a conical block (18), and multiple sliding grooves (16) are opened on the outer circumference of the fixed cylinder (3). Each of the multiple sliding grooves (16) is movably connected to a clamping plate (17), one side of the clamping plate (17) is fixedly connected to a protrusion (20), and the inclined surface of the conical block (18) is in contact with the inclined surface of the protrusion (20). A connecting rod (15) is fixedly connected to the inner wall of the top of the fixed cylinder (3), and multiple tension springs (21) are fixedly connected to the outer side of the connecting rod (15), and one end of the tension spring (21) is fixed to the clamping plate (17) at the corresponding position.

3. A circular knitting machine with adjustable yarn tension according to claim 2, characterized in that, Two second telescopic rods are fixedly connected to the inner side of the clamp (17), and the extended end of the second telescopic rod is fixed to the connecting rod (15). The tension spring (21) is sleeved on the outside of the second telescopic rod.

4. The machine according to claim 1, characterized in that, The wire guide assembly includes multiple support frames (5), which are fixed to the top of the large circular knitting machine body (1) by bolts. A wire guide roller (4) is movably connected to the top of the support frame (5).

5. The machine according to claim 1, characterized in that, Two first telescopic rods (11) are fixedly connected to one side of the fixed frame (12), and the extended end of the first telescopic rod (11) is fixed to the fixed plate (7).

6. A circular knitting machine with adjustable thread tension according to claim 1, characterized in that, The threaded rod (14) is movably connected to a self-locking nut (13), and the self-locking nut (13) is in contact with the fixing frame (12).

7. The machine according to claim 1, characterized in that it comprises a device (10) for adjusting the tension of the thread. A knob is fixedly connected to one end of the threaded rod (14).

8. A knitting machine according to claim 4, characterized in that, The guide wire assembly is located adjacent to the support plate (2).

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