A core-spun yarn tension rod for a spinning machine

Abstract

The present invention is applicable to the technical field of roving machines, and provides a core-spun yarn tension rod for a roving machine, comprising a mounting seat for fixing on the inner wall of the roving machine, the mounting seat being provided with a roller portion with an adjustable position for adjusting the tension of the core-spun yarn over a large range, a plurality of outer rollers with self-adjustable winding ranges being equidistantly arranged in a ring on the outer side of the roller portion for adjusting the tension of the core-spun yarn over a small range; one end of the roller portion is fixedly connected with a sliding foot via a bearing, a slide groove is arranged inside the mounting seat, and a screw is rotatably arranged in the slide groove; the roller portion is driven by the screw to adjust its position on the mounting seat, so as to achieve adjustment of the tension of the core-spun yarn over a large range, and the outer roller is adjusted by the elastic extrusion cone inside the roller portion to extend and retract the outer roller, so that the outer range of the roller portion is adaptively expanded or reduced, so as to achieve adjustment of the tension of the core-spun yarn over a small range.

Description

Technical Field

[0001] The invention belongs to the technical field of spinning machines, and in particular relates to a core-spun yarn tension rod used for a spinning machine. Background Art

[0002] Spinning frame is a spinning machine that stretches, twists and winds semi-finished roving or slivers into spun yarn during the spinning process. The slivers are stretched and twisted on the roving frame to make roving, the combing machine combs the fibers to make combed slivers, the needle combing machine combines the slivers, and the needle row stretches to improve the sliver structure. The roving is further twisted and spun into spun yarn on the ring spinning frame. The spinning frame is the main machine for spinning.

[0003] The pre-tension of the core-spun yarn production equipment is adjusted by a spring tension device installed on the drafting cradle. The spring tension device can only adjust the tension in a small range, which does not meet the requirement of adjusting the tension in a large range of the entire core-spun yarn during production. Summary of the invention

[0004] The invention provides a core-spun yarn tension rod for a spinning machine, aiming to solve the problem that the existing spring tensioner can only solve the tension of the core-spun yarn in a small range.

[0005] The present invention is implemented as follows: a core-spun yarn tension rod for a spinning machine includes a mounting seat for fixing on the inner wall of the spinning machine, the mounting seat is provided with a roller portion with an adjustable position for adjusting the tension of the core-spun yarn in a large range, and a plurality of outer rollers with self-adjustable winding ranges are equidistantly arranged in a ring on the outer side of the roller portion for adjusting the tension of the core-spun yarn in a small range.

[0006] Preferably, one end of the roller portion is fixedly connected to a sliding foot via a bearing, and a sliding groove is provided inside the mounting seat, in which a screw is rotatably provided, and the screw drives the sliding foot to slide in the sliding groove for adjusting the position of the roller portion.

[0007] Preferably, the outer roller comprises an arc plate frame, two symmetrical notches are formed on the arc plate frame, a rotating roller is rotatably arranged in the notch, and a half circle of core-spun yarn is wound around the outer side of the rotating roller.

[0008] Preferably, a square rod is provided at each of the two ends of the inner side surface of the arc plate frame, and rectangular holes are provided at both ends of the hollow roller of the roller part, and the square rod slides in the rectangular holes.

[0009] Preferably, an elastic extrusion cone is provided in the hollow interior of the roller for squeezing outward an adjustment rod located in the middle of the inner side surface of the arc plate frame.

[0010] Preferably, the elastic extrusion cone includes an inner rod fixed to the inner end surface of the roller and an outer cone sleeve sleeved on the outside of the inner rod, and a spring for pushing the outer cone sleeve to move outward is provided between the outer cone sleeve and the inner end surface of the roller.

[0011] Preferably, the front end of the outer conical sleeve is configured to be conical, and the end of the adjusting rod extending into the interior of the roller is configured to be an inclined surface, and the outer conical sleeve fits with the inclined surface end of the adjusting rod.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: a core-spun yarn tension rod for a roving machine of the present invention drives a roller portion to adjust its position on a mounting seat through a screw rod, thereby realizing a wide range of tension adjustment for the core-spun yarn, and adjusting the telescopic distance of the outer roller through an elastic extrusion cone inside the roller portion, so that the outer side range of the roller portion is adaptively expanded or reduced, thereby realizing a small range of tension adjustment for the core-spun yarn. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0014] Figure 2 It is a front view structural schematic diagram of the present invention;

[0015] Figure 3 It is a schematic diagram of the top view of the structure of the present invention;

[0016] Figure 4 It is a side view structural schematic diagram of the present invention;

[0017] Figure 5 for Figure 3 Schematic diagram of the cross section at AA;

[0018] In the figure: 1. mounting seat; 11. slide groove; 12. screw; 2. roller portion; 21. roller; 22. slide foot; 23. rectangular hole; 24. elastic extrusion cone; 241. inner rod; 242. outer cone sleeve; 243. spring; 3. outer roller; 31. arc plate frame; 32. missing groove; 33. rotating roller; 34. square rod; 35. adjusting rod. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] See also Figure 1-5The present invention provides a technical solution: a core-spun yarn tension rod for a spinning machine, comprising a mounting seat 1 for fixing on the inner wall of the spinning machine, a roller portion 2 with an adjustable position for adjusting the tension of the core-spun yarn in a large range is arranged on the mounting seat 1, and a plurality of outer rollers 3 with self-adjustable winding ranges are equidistantly arranged in a ring on the outer side of the roller portion 2 for adjusting the tension of the core-spun yarn in a small range.

[0021] In this embodiment, the mounting seat 1 is first installed at the guide roller position of the core-spun yarn and fixed in the direction that can adjust the range of the core-spun yarn to expand or shrink, so as to drive the position of the roller portion 2 through the screw 12 to adjust the tension of the core-spun yarn in a large range. This adjustment is generally required only when different materials are used or different core-spun yarns are made. The rest of the time, it is only necessary to push the outer cone sleeve 242 to move through the internal spring 243 to adjust the position of the arc plate frame 31 and the rotating roller 33, so that the outer range of the roller portion 2 is adaptively changed, thereby realizing the tension control of the core-spun yarn in a small range.

[0022] Furthermore, one end of the roller portion 2 is fixedly connected to a slide foot 22 via a bearing, and a slide groove 11 is provided inside the mounting seat 1. A screw 12 is rotatably provided in the slide groove 11, and the screw 12 drives the slide foot 22 to slide in the slide groove 11 for adjusting the position of the roller portion 2.

[0023] In this embodiment, the sliding foot 22 rotatably connected to the roller portion 2 is driven to move in the slide groove 11 of the mounting seat 1 by rotating the screw rod 12, and the position of the roller portion 2 is adjusted. The roller portion 2 is selectively moved in two directions, namely, in the positive and negative directions, to reduce the range of the core-spun yarn or to expand the range of the core-spun yarn, thereby providing a solution to the problem of large-range tension of the core-spun yarn that cannot be solved by adjusting the outer range of the roller portion 2.

[0024] Furthermore, the outer roller 3 comprises an arc plate frame 31 , on which two symmetrical notches 32 are provided, in which a rotating roller 33 is rotatably arranged, and a half circle of core-spun yarn is wound around the outer side of the rotating roller 33 .

[0025] In this embodiment, the arc plate frame 31 is configured to provide rotating support and a frame for the roller 33. The freely rotating roller 33 facilitates the transmission of the core-spun yarn and avoids mutual friction. Two rollers 33 are arranged on the same arc plate frame 31 for guiding the two groups of core-spun yarns.

[0026] Furthermore, a square rod 34 is provided at each of the two ends of the inner side surface of the arc plate frame 31 , and rectangular holes 23 are provided at both ends of the hollow roller 21 of the roller part 2 , and the square rod 34 slides in the rectangular holes 23 .

[0027] In this embodiment, the two square rods 34 on the arc plate frame 31 are used to limit the extension direction of the arc plate frame 31, ensuring that the arc plate frame 31 expands or contracts the outer range of the entire roller portion 2 in a predetermined direction. The square rods 34 and the rectangular holes 23 are further provided to limit the direction and prevent rotation.

[0028] Furthermore, an elastic extrusion cone 24 is provided in the hollow interior of the roller 21 for extruding the adjustment rod 35 located in the middle of the inner side surface of the arc plate frame 31 outward.

[0029] In this embodiment, the elastic extrusion cone 24 controls the range of the arc plate frame 31 through the adjustment rod 35 on the arc plate frame 31, and then controls the outer diameter range of the entire roller portion 2, so that the entire roller portion 2 can adaptively control the tension of the core-spun yarn in a small range.

[0030] Furthermore, the elastic extrusion cone 24 includes an inner rod 241 fixed to the inner end surface of the roller 21 and an outer conical sleeve 242 sleeved on the outside of the inner rod 241, and a spring 243 is provided between the outer conical sleeve 242 and the inner end surface of the roller 21 for pushing the outer conical sleeve 242 to move outward; the front end of the outer conical sleeve 242 is configured to be conical, and the end of the adjusting rod 35 extending into the interior of the roller 21 is configured to be an inclined surface, and the outer conical sleeve 242 fits with the inclined surface end of the adjusting rod 35.

[0031] In this embodiment, the spring 243 pushes the outer cone sleeve 242 to move outward along the inner rod 241, and the conical outer cone sleeve 242 moves outward to squeeze the end faces of each ring-shaped adjusting rod 35, so that each adjusting rod 35 moves outward, squeezes the arc plate frame 31 and the rotating roller 33 outward, until the core-spun yarn is tightened, on the contrary, the core-spun yarn squeezes the rotating roller 33 and the arc plate frame 31 inward, so that the adjusting rod 35 squeezes the outer cone sleeve 242 inward in the opposite direction, so that the core-spun yarn is contracted. The setting of the cone is convenient for inserting into the middle of each ring-shaped adjusting rod 35 to control their separation and combination.

[0032] The working principle and use process of the present invention are as follows: the user installs the entire tension rod inside the spinning car by passing bolts through the screw holes at each corner of the mounting seat 1, and then installs the core-spun yarn around the roller 33. When adjusting the tension of the core-spun yarn over a large range, the user drives the sliding foot 22 to move in the direction away from the core-spun yarn winding inside the slide groove 11 by turning the screw rod 12, and pulls the core-spun yarn to become tight. During the processing of the core-spun yarn, a small range of tension changes will occur. At this time, the internal spring 243 pushes the outer cone sleeve 242 to move outward along the inner rod 241, so that the front end of the outer cone sleeve 242 squeezes each adjusting rod 35 outward, so that the adjusting rod 35 pushes each arc plate frame 31 to move outward, so that the roller 33 on the arc plate frame 31 expands outward, thereby increasing the diameter range of the entire roller 33 and tightening the core-spun yarn. Conversely, when the core-spun yarn itself is tightened, the roller 33 is pressed, and the roller 33 presses the arc plate frame 31. The arc plate frame 31 moves inward through the adjusting rod 35, and pushes the outer cone sleeve 242 inward in the opposite direction to press the spring 243, thereby realizing adaptive contraction of the core-spun yarn range.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A core-spun yarn tension rod for a spinning machine, characterized in that: The invention comprises a mounting seat (1) for fixing on the inner wall of a spinning frame, wherein the mounting seat (1) is provided with a roller portion (2) with an adjustable position for adjusting the tension of the core-spun yarn over a large range, and a plurality of outer rollers (3) with self-adjustable winding ranges are arranged in an annular manner and equidistantly on the outer side of the roller portion (2) for adjusting the tension of the core-spun yarn over a small range; one end of the roller portion (2) is fixedly connected to a sliding foot (22) via a bearing, and a sliding groove (11) is arranged inside the mounting seat (1). A screw rod (12) is rotatably arranged in the slide groove (11), and the screw rod (12) drives the sliding foot (22) to slide in the slide groove (11) so as to adjust the position of the roller part (2); the outer roller (3) comprises an arc plate frame (31), and two symmetrical notches (32) are opened on the arc plate frame (31), and a rotating roller (33) is rotatably arranged in the notch (32), and a half-circle core-spun yarn is wound around the outer side of the rotating roller (33); the arc plate frame (31 ) are provided with a square rod (34) at each end of the inner side surface; rectangular holes (23) are provided at both ends of the hollow roller (21) of the roller portion (2), and the square rod (34) slides in the rectangular holes (23); an elastic extrusion cone (24) is provided in the hollow interior of the roller (21) for extruding the adjustment rod (35) located in the middle of the inner side surface of the arc plate frame (31) outward; the elastic extrusion cone (24) includes an inner rod ( The inner rod (241) is provided with an outer conical sleeve (242) sleeved on the outer side of the inner rod (241); a spring (243) is provided between the outer conical sleeve (242) and the inner end surface of the roller (21) for pushing the outer conical sleeve (242) to move outward; the front end of the outer conical sleeve (242) is provided in a conical shape; the end of the adjusting rod (35) extending into the interior of the roller (21) is provided in an inclined surface; the outer conical sleeve (242) is fitted with the inclined surface end of the adjusting rod (35).

Images