A seamless knitted underwear yarn guide device for preventing yarn from loosening

Abstract

The utility model discloses a yarn guide device for seamless knitted underwear that prevents yarn from loosening, and relates to the technical field of yarn guide devices. In order to solve the problem in the prior art that the existing yarn roller is placed on the fixed shaft of the mounting frame on the seamless knitting machine, the yarn roller rotates freely on the fixed shaft, and the yarn pulls the yarn roller to rotate when releasing the yarn. When the releasing stops, the yarn roller will also rotate slightly under the action of inertia, causing the yarn to loosen, thereby affecting the production quality of the seamless knitting machine. A damping shaft is connected to the upper end of one side of the mounting frame, and a fixed shaft is fixedly connected to one side of the damping shaft. The fixed shaft is connected to the yarn roller. By adopting a combined design of the damping shaft and the fixed shaft, the problem of yarn loosening caused by inertia of the yarn roller after the rotation stops is effectively solved. The damping force generated by the damping shaft can ensure that the yarn roller remains stable after rotation, thereby maintaining the tension of the yarn and improving the production quality of the seamless knitted underwear machine.

Description

Technical Field

[0001] The utility model relates to the technical field of yarn guide devices, in particular to a seamless knitted underwear yarn guide device which can prevent yarn from loosening. Background Art

[0002] The seamless knitting underwear machine is a molding production equipment specially used for the production of seamless knitwear. It uses high-speed rotating needles to interweave, rub, cut and other operations between yarn and elastic bands to achieve fast and efficient manufacturing of underwear. This machine is usually equipped with components such as a feeding device, a needle drive system, auxiliary devices and a discharging device. The seamless knitting underwear machine can directly use yarn as raw material to produce finished underwear (only simple cutting and sewing is required), without cutting and sewing the fabric to form clothing like other weaving or knitting machines. In addition, the seamless knitting underwear machine is also widely used in the production of various clothing categories such as swimwear and sportswear, showing strong production capacity and adaptability.

[0003] For example, the authorization announcement number, CN220907821U, discloses a yarn guide device for a seamless knitted underwear machine, which includes a plurality of device bodies connected to the seamless knitted underwear machine and two guide rods connected to the device bodies, the two ends of the guide rods are penetrated by the side walls of the device bodies, a water flow groove is opened in the guide rods, a water storage assembly is fixedly connected to the back of the device body, a water outlet pipe is connected to one side of the water storage assembly, one end of the water outlet pipe is fixedly connected to the guide rod, and one end of the other guide rod is fixedly connected to the water inlet pipe, one end of the water inlet pipe is connected to the water storage assembly, and one end of the two guide rods is fixedly connected through a connecting pipe. The utility model sets a water storage assembly on the device body, and utilizes the mutual cooperation of the water outlet pipe, the connecting pipe and the water inlet pipe, so that the two guide rods can be cooled, and the heat generated by the yarn and the guide rods is taken away, thereby improving the stability of the device body during operation.

[0004] The existing yarn roller is placed on a fixed shaft of a mounting frame on a seamless knitting machine, and the yarn roller rotates freely on the fixed shaft. When paying out the yarn, the yarn pulls the yarn roller to rotate. When the paying out stops, the yarn roller will still rotate slightly under the action of inertia, causing the yarn to loosen, thereby affecting the production quality of the seamless knitting machine. Therefore, the market urgently needs to develop a seamless knitted underwear yarn guide device that prevents yarn loosening to help people solve the existing problems. Utility Model Content

[0005] The purpose of the utility model is to provide a seamless knitted underwear yarn guiding device for preventing yarn from loosening, so as to solve the problem proposed in the above background technology that the existing yarn roller is placed on a fixed shaft of a mounting frame on a seamless knitting machine, and the yarn roller rotates freely on the fixed shaft. When paying out the yarn, the yarn pulls the yarn roller to rotate. When the paying out stops, the yarn roller will still rotate slightly under the action of inertia, causing the yarn to loosen, thereby affecting the production quality of the seamless knitting machine.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a seamless knitted underwear yarn guiding device for preventing yarn relaxation, comprising a mounting frame, a damping shaft is connected to the upper end of one side of the mounting frame, a fixed shaft is fixedly connected to one side of the damping shaft, a yarn roller is connected to the fixed shaft, a circular movable groove is provided on one side inside the fixed shaft, a columnar movable part is provided on one side inside the circular movable groove, rectangular movable grooves are provided at both upper and lower ends of the columnar movable part, and triangular locking tongues are provided inside the two rectangular movable grooves.

[0007] Preferably, the front and rear ends of the middle part of the upper end of the other side of the mounting frame are fixedly connected with clamping plates, and the other side of the damping shaft is fixedly connected with a connecting end, which passes through the mounting frame and is inserted between the two clamping plates, and the connecting end is fixedly connected to the two clamping plates by bolts.

[0008] Preferably, four connecting keys are fixedly connected in an annular array on the fixed shaft, and four key slots are arranged in an annular array on the inner end surface of the yarn roller. After the fixed shaft is inserted into the yarn roller, the four connecting keys slide into the four key slots respectively.

[0009] Preferably, rectangular openings are connected between one side of the upper and lower end surfaces of the circular movable groove and the outer end surface of the fixed shaft, and the two triangular locking tongues extend out of the outer end surface of the fixed shaft along the two rectangular openings respectively.

[0010] Preferably, a second spring is provided between the middle portion of the rectangular movable groove and the triangular locking tongue.

[0011] Preferably, a pull rod is fixedly connected to the middle of one side of the columnar movable member, and one end of the pull rod extends out of one side of the fixed shaft and is fixedly connected to a disc.

[0012] Preferably, a first spring is arranged inside the circular movable groove and outside the pull rod.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) In this utility model, the combination of a damping shaft and a fixed shaft is adopted to effectively solve the problem of yarn relaxation caused by inertia after the yarn roller stops rotating. The damping force generated by the damping shaft can ensure that the yarn roller remains stable after rotating, thereby maintaining the tension of the yarn and improving the production quality of the seamless knitting underwear machine;

[0015] (2) In this utility model, a detachable yarn roller installation structure is designed. Through the cooperation between the connecting key and the keyway and the limiting effect of the triangular lock tongue, the yarn roller can be stably and conveniently installed on the fixed shaft, and it is also easy to replace and maintain. This design improves production efficiency and reduces operational difficulty;

[0016] (3) In the utility model, the automatic locking and unlocking function of the yarn roller installation structure is realized by introducing components such as a columnar movable part, a rectangular movable groove, a triangular locking tongue and a spring. This design not only improves the reliability and stability of the device, but also makes the operation easier and faster. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of a seamless knitted underwear yarn guide device for preventing yarn from loosening according to the utility model;

[0018] Figure 2 It is the main sectional view of the utility model;

[0019] Figure 3 This is a schematic diagram of the fixed shaft structure of the utility model;

[0020] Figure 4 It is a top sectional view of the utility model;

[0021] Figure 5 It is an enlarged view of the detail A of the present utility model.

[0022] In the figure: 1, mounting frame; 101, clamping plate; 102, bolt; 2, damping shaft; 201, connecting end; 3, fixed shaft; 301, connecting key; 302, circular movable groove; 303, rectangular opening; 304, first spring; 4, yarn roller; 401, keyway; 5, columnar movable part; 501, rectangular movable groove; 502, triangular locking tongue; 503, second spring; 6, pull rod; 601, disc. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] See also Figure 1-Figure 5The utility model provides an embodiment: a seamless knitted underwear yarn guide device for preventing yarn from loosening, comprising a mounting frame 1, a damping shaft 2 is connected to the upper end of one side of the mounting frame 1, and the front and rear ends of the middle part of the upper end of the other side of the mounting frame 1 are fixedly connected to clamps 101, and the other side of the damping shaft 2 is fixedly connected to a connecting end 201, and the connecting end 201 passes through the mounting frame 1 and is inserted between the two clamps 101. The connecting end 201 and the two clamps 101 are fixedly connected by bolts 102, and one side of the damping shaft 2 is fixedly connected to a fixed shaft 3, and the fixed shaft 3 is connected to a yarn roller 4, and the fixed shaft 3 is ringed The yarn roller 4 is provided with four keyways 401 in a circular array and four connecting keys 301 are respectively inserted into the fixed shaft 3 into the four keyways 401, so that the yarn roller 4 can rotate while driving the fixed shaft 3 to rotate synchronously. One end of the fixed shaft 3 is fixedly connected to the damping shaft 2, so that the damping shaft 2 generates a damping force when it rotates, and the damping force can keep the fixed shaft 3 stable after it rotates, so that when the yarn roller 4 stops rotating due to the pulling wire, the yarn roller 4 can stop rotating, so as to keep the yarn taut and prevent it from loosening.

[0025] See also Figure 2-Figure 5 A circular movable groove 302 is provided on one side of the fixed shaft 3, and a columnar movable part 5 is provided on one side of the circular movable groove 302. Rectangular movable grooves 501 are provided on both upper and lower ends of the columnar movable part 5. Triangular locking tongues 502 are provided inside the two rectangular movable grooves 501. Rectangular openings 303 are connected between one side of the upper and lower end surfaces of the circular movable groove 302 and the outer end surface of the fixed shaft 3. The two triangular locking tongues 502 extend out of the outer end surface of the fixed shaft 3 along the two rectangular openings 303 respectively. A second spring 503 is provided between the middle part of the rectangular movable groove 501 and the triangular locking tongue 502. When the yarn roller 4 is installed on the fixed shaft 3, the two second springs 503 push the triangular locking tongue 502 to extend out of the outer end surface of the fixed shaft 3 to limit the side of the yarn roller 4, so as to prevent the yarn roller 4 from slipping out of the fixed shaft 3 when rotating.

[0026] See also Figure 2-Figure 5A pull rod 6 is fixedly connected to the middle part of one side of the columnar movable part 5, and one end of the pull rod 6 extends out of one side of the fixed shaft 3 and is fixedly connected to a disc 601. A first spring 304 is arranged inside the circular movable groove 302 and on the outside of the pull rod 6 by pulling the disc 601. The disc 601 drives the columnar movable part 5 to move inside the circular movable groove 302 through the pull rod 6 and compresses the first spring 304. When the columnar movable part 5 moves, it interacts with the oblique end surface of the triangular locking tongue 502 through one side of the rectangular opening 303, so that the triangular locking tongue 502 can be retracted into the rectangular movable groove 501, releasing the limit on one side of the yarn roller 4, so that the yarn roller 4 can slide out from the fixed shaft 3 for replacement, and the state of pulling the disc 601 is released. The columnar movable part 5 is reset by the first spring 304, and the triangular locking tongue 502 can extend out of the outer end surface of the fixed shaft 3 again under the action of the second spring 503.

[0027] Working principle: When in use, first install the yarn roller 4 on the fixed shaft 3, and through the cooperation of the four connecting keys 301 and the four key slots 401, the yarn roller 4 can be stably installed on the fixed shaft 3, and the two second springs 503 push the triangular lock tongue 502 to extend out of the outer end face of the fixed shaft 3 to limit the yarn roller 4 side, so as to prevent the yarn roller 4 from slipping out of the fixed shaft 3 during rotation. Subsequently, the seamless knitting underwear machine is started for production. When the yarn pulls the yarn roller 4 to rotate, due to the damping effect of the damping shaft 2, the fixed shaft 3 and the yarn roller 4 will remain stable after rotation, avoiding the problem of yarn relaxation caused by inertia. When the yarn roller 4 needs to be replaced, it is only necessary to pull the disc 601, drive the columnar movable part 5 to move through the pull rod 6, so that the triangular lock tongue 502 is retracted into the rectangular movable groove 501, and the yarn roller 4 can be easily slid out of the fixed shaft 3. The whole device has a compact structure and is easy to operate, which effectively solves the problem of yarn relaxation.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A seamless knitted underwear yarn guide device for preventing yarn from loosening, comprising a mounting frame (1), characterized in that: The upper end of one side of the mounting frame (1) is connected to a damping shaft (2), one side of the damping shaft (2) is fixedly connected to a fixed shaft (3), the fixed shaft (3) is connected to a yarn roller (4), a circular movable groove (302) is provided on one side inside the fixed shaft (3), a columnar movable part (5) is provided on one side inside the circular movable groove (302), the columnar movable part (5) is provided with rectangular movable grooves (501) at both upper and lower ends, and triangular locking tongues (502) are provided inside the two rectangular movable grooves (501).

2. A seamless knitted underwear yarn guiding device for preventing yarn relaxation according to claim 1, characterized in that: The front and rear ends of the middle part of the upper end of the other side of the mounting frame (1) are fixedly connected to clamping plates (101), and the other side of the damping shaft (2) is fixedly connected to a connecting end (201), and the connecting end (201) passes through the mounting frame (1) and is inserted between the two clamping plates (101), and the connecting end (201) and the two clamping plates (101) are fixedly connected by bolts (102).

3. A seamless knitted underwear yarn guiding device for preventing yarn relaxation according to claim 1, characterized in that: Four connection keys (301) are fixedly connected in an annular array on the fixed shaft (3), and four key slots (401) are arranged in an annular array on the inner end surface of the yarn roller (4). After the fixed shaft (3) is inserted into the interior of the yarn roller (4), the four connection keys (301) slide into the interior of the four key slots (401) respectively.

4. A seamless knitted underwear yarn guiding device for preventing yarn relaxation according to claim 1, characterized in that: Rectangular openings (303) are connected between one side of the upper and lower end surfaces of the circular movable groove (302) and the outer end surface of the fixed shaft (3), and the two triangular locking tongues (502) extend out of the outer end surface of the fixed shaft (3) along the two rectangular openings (303), respectively.

5. A seamless knitted underwear yarn guiding device for preventing yarn relaxation according to claim 1, characterized in that: A second spring (503) is provided between the middle portion of the rectangular movable groove (501) and the triangular locking tongue (502).

6. A seamless knitted underwear yarn guiding device for preventing yarn relaxation according to claim 1, characterized in that: A pull rod (6) is fixedly connected to the middle of one side of the columnar movable member (5), and one end of the pull rod (6) extends out of one side of the fixed shaft (3) and is fixedly connected to a disc (601).

7. A seamless knitted underwear yarn guiding device for preventing yarn relaxation according to claim 6, characterized in that: A first spring (304) is arranged inside the circular movable groove (302) and outside the pull rod (6).

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