Coated yarn drafting mechanism

Abstract

The utility model provides a covered yarn drafting mechanism, and relates to the field of covered yarn production. The covered yarn drafting mechanism comprises a mounting rack, a traction shaft, an auxiliary shaft, a traction shaft, a traction shaft, a traction shaft, a traction shaft and an auxiliary shaft, and the mounting rack is provided with two vertical plates; the traction rollers are arranged on the traction shaft in a sleeving mode, and rubber leather sheaths are arranged on the circumferential side faces of the traction rollers; the auxiliary shafts are sleeved with the auxiliary rollers, the auxiliary rollers are in one-to-one correspondence with the traction rollers in position, and the circumferential side faces of the auxiliary rollers are smooth U-shaped cambered surfaces; wherein the traction shaft and the auxiliary shaft are respectively sleeved with a plurality of first gears and second gears which are meshed with each other. According to the utility model, the mounting frame and the traction roller are arranged and matched with the auxiliary shaft and the traction shaft, so that the covering yarns are gathered towards the middle part of the traction roller, and the problem of potential safety hazards caused by the fact that the covering yarns are wound into a rotating shaft of the traction roller in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the field of coated yarn production, in particular to a coated yarn drafting mechanism. Background Art

[0002] Covered yarn is a special textile material, which consists of one or more core fibers and one or more outer covering fibers. In this structure, the core fibers are usually composed of fibers with good strength and wear resistance, while the outer covering fibers provide additional softness, feel, color or other desired performance characteristics. Covering yarn machine is a device used to produce covered yarn, which covers the core fibers with specific properties with another one or more fibers to form yarn with composite properties.

[0003] During the production process of the covering wire machine, it is generally necessary to wind the wound covering wire on a reel for shaping and collection. In this process, a traction roller is generally used to stretch and pull the covering wire so that it can be wound on the reel and maintain the tension required for shaping.

[0004] However, during the process of the existing traction roller stretching and pulling the coated wire, part of the coated wire may be stretched too long or broken, and then be drawn into the rotating shaft of the traction roller, causing equipment failure and posing a safety hazard. Utility Model Content

[0005] The utility model aims to solve the problem in the prior art that the coated wire is wound into the rotating shaft of the traction roller, causing equipment failure and bringing potential safety hazards, and provides a coated wire drafting mechanism that can prevent the coated wire from being wound into the rotating shaft.

[0006] The technical solution adopted by the utility model is:

[0007] A coated yarn drafting mechanism, comprising:

[0008] A mounting frame having two vertical plates, between which a traction shaft and an auxiliary shaft are rotatably arranged, wherein the auxiliary shaft is located obliquely below the traction shaft;

[0009] A plurality of traction rollers are sleeved on the traction shaft, and a rubber sheath is provided on the circumferential side of the traction rollers; and

[0010] A plurality of auxiliary rollers are sleeved on the auxiliary shaft and correspond to the positions of the traction rollers one by one, and the circumferential side surfaces of the auxiliary rollers are smooth U-shaped arc surfaces;

[0011] Wherein, the traction shaft and the auxiliary shaft are respectively sleeved with a plurality of first gears and second gears meshing with each other; when the traction shaft is driven by a motor, it drives the auxiliary roller to rotate and gather the coated wires.

[0012] Furthermore, the mounting frame at least comprises:

[0013] A fourth mounting plate, an upper winding shaft, a third mounting plate, a lower winding shaft, the traction shaft, a second mounting plate, a first mounting plate and a feeding shaft are arranged in sequence from top to bottom;

[0014] Among them, the upper winding shaft, the lower winding shaft and the feeding shaft are all rotatably arranged, and are respectively sleeved with the upper winding roller, the lower winding roller and the wire drum; the fourth mounting plate, the third mounting plate, the second mounting plate and the first mounting plate are respectively installed with the upper winding drum, the lower winding drum, the outer covering assembly and the inner covering assembly.

[0015] Furthermore, a transmission ratio between the second gear and the first gear is greater than 1.

[0016] Further, the first gear and the second gear are respectively arranged at the center position between the adjacent traction rollers and the adjacent auxiliary rollers.

[0017] Further, the first gear and the second gear are respectively arranged between all adjacent traction rollers and adjacent auxiliary rollers.

[0018] Further, the first gear and the second gear are respectively arranged between adjacent traction rollers and adjacent auxiliary rollers.

[0019] Furthermore, the auxiliary shaft is a hollow ventilation shaft; a ventilation duct is arranged inside the auxiliary roller and is connected to the auxiliary shaft; and an axial air hole is opened on the U-shaped arc surface.

[0020] Furthermore, the axial air holes are divided into multiple groups and are evenly distributed in the circumferential direction of the U-shaped arc surface.

[0021] Furthermore, each group of the axial air holes is symmetrically arranged on both sides of the center of the U-shaped arc surface depression.

[0022] The beneficial effects of the utility model are:

[0023] 1. The utility model sets a mounting frame and a traction roller so that the coated wire is guided by the traction roller and wound into the reel while maintaining tension, and then cooperates with the second gear and the first gear that mesh with each other on the auxiliary shaft and the traction shaft to drive the auxiliary roller, so as to realize the gathering of the coated wire to the middle of the traction roller and avoid the coated wire moving to both sides and being wound into the traction shaft, thus solving the problem in the prior art that the coated wire is wound into the rotating shaft of the traction roller, causing equipment failure and bringing safety hazards.

[0024] 2. The utility model cools the coated wire by arranging a ventilated auxiliary shaft and auxiliary roller, and cooperates with the axial air holes on the U-shaped arc surface to achieve coverage of the cooling air in all directions of the coated wire, which can perform efficient cooling and temperature reduction, thereby ensuring that the coated wire maintains tension and structural stability during the winding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a three-dimensional schematic diagram of the drafting mechanism of the embodiment of the utility model.

[0027] Figure 2 It is a working schematic diagram of the drafting mechanism of an embodiment of the utility model.

[0028] Figure 3 for Figure 1 Enlarged view of point A.

[0029] Figure 4 It is a partial front view of the drafting mechanism of the embodiment of the utility model.

[0030] Figure 5 It is a front view of the drafting mechanism of the second embodiment of the utility model.

[0031] Figure 6 It is a three-dimensional schematic diagram of an auxiliary roller according to the third embodiment of the utility model.

[0032] Figure 7 It is a structural schematic diagram of the auxiliary roller of the third embodiment of the utility model.

[0033] Reference numerals:

[0034] 100-control cabinet;

[0035] 200-mounting frame, 201-feeding shaft, 202-first mounting plate, 203-second mounting plate, 204-traction shaft, 205-third mounting plate, 206-lower winding shaft, 207-fourth mounting plate, 208-upper winding shaft, 209-auxiliary shaft, 210-wire drum, 220-inner covering assembly, 230-outer covering assembly, 250-lower drum, 260-lower winding roller, 270-upper drum, 280-upper winding roller;

[0036] 400-traction roller, 420-first gear;

[0037] 900- auxiliary roller, 910- U-shaped arc surface, 911- axial air hole, 920- second gear. DETAILED DESCRIPTION

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0039] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present invention.

[0040] The embodiments of the utility model are described in detail below with reference to the accompanying drawings.

[0041] See also Figure 1-4 The first embodiment provides a coated wire drawing mechanism, which mainly includes: a mounting frame 200, a traction roller 400 and an auxiliary roller 900.

[0042] like Figure 1 As shown in the figure, it is a coated wire machine suitable for the coated wire drawing mechanism of this embodiment, and the coated wire machine is mainly composed of a control cabinet 100, a mounting frame 200 and various components on the mounting frame 200, and the various components on the mounting frame 200 perform the coating process of the coated wire under the control of the control cabinet 100.

[0043] like Figure 1 , Figure 2As shown in the figure, the mounting frame 200 is mainly composed of two vertical L-shaped plates, which are spaced a certain distance apart and parallel to each other, and the fourth mounting plate 207, the upper winding shaft 208, the third mounting plate 205, the lower winding shaft 206, the second mounting plate 203, the first mounting plate 202 and the feeding shaft 201 are sequentially connected between the two from top to bottom. Among them, the feeding shaft 201 is rotatably arranged at a position near the bottom of the mounting frame 200, and a plurality of wire drums 210 are sleeved thereon, and the plurality of wire drums 210 are wound with spandex yarns and nylon yarns, and the feeding shaft 201 is electrically connected to the control cabinet 100, and rotates under the control thereof during operation, so as to feed the spandex yarns and nylon yarns to the upper covering component. The coating components in this embodiment include a plurality of inner coating components 220 and a plurality of outer coating components 230, each of which is composed of guide rods on both sides and a spindle in the middle. The plurality of inner coating components 220 are arranged side by side on the first mounting plate 202, and the fed spandex yarn and nylon yarn are wound and coated to obtain a single-layer coated yarn; the plurality of outer coating components 230 are installed and arranged side by side on the second mounting plate 203, and the single-layer coated yarn obtained by the inner coating components 220 is then added with nylon yarn for outer layer winding and coating to obtain inner and outer double-layer coated yarn. Next, the fourth mounting plate 207 and the third mounting plate 205 above the second mounting plate 203 are both arranged in a vertical direction, and the plurality of upper reels 270 and the plurality of lower reels 250 are respectively arranged side by side on the front side of the fourth mounting plate 207 and the third mounting plate 205, and are rotatably connected with the fourth mounting plate 207 and the third mounting plate 205. The upper winding shaft 208 and the lower winding shaft 206 are respectively located obliquely below the rear side of the plurality of upper reels 270 and the plurality of lower reels 250, and are respectively sleeved with a plurality of upper winding rollers 280 and a lower winding roller 260. The upper winding rollers 280 and the lower winding rollers 260 also have rubber layers on their surfaces and are respectively attached to the upper reels 270 and the lower reels 250. The upper winding shaft 208 and the lower winding shaft 206 are both electrically connected to the control cabinet 100 and rotate under its control during operation, so as to respectively wind the coated wire introduced from below onto the upper reels 270 and the lower reels 250. In this embodiment, the mounting frame 200 is both a part of the drafting mechanism and a part of the coated wire machine, and is used to install various components of the coated wire machine. However, it should be noted that the mounting frame 200 can also be separated from the coated wire machine and set as a part of the drafting mechanism alone. In this case, the various components of the coated wire machine are no longer set.

[0044] like Figure 1-Figure 4As shown in the figure, the position between the outer coating assembly 230 and the third mounting plate 205, and the traction shaft 204 is also rotatably arranged between the vertical plates on both sides of the middle part of the mounting frame 200, and a plurality of traction rollers 400 are sleeved on the traction shaft 204, and a rubber cover is arranged on the circumferential side of the traction roller 400 to ensure that it has sufficient friction to pull the coated wire. When working, the traction shaft 204 and the traction roller 400 are driven by the motor to rotate, so that the traction roller 400 rotates and pulls the inner and outer double-layer coated wire obtained in the outer coating assembly 230 below, guides it to the upper position of the plurality of upper reels 270 or the plurality of lower reels 250, and maintains the tension of the coated wire.

[0045] like Figure 1-Figure 4 As shown in the figure, an auxiliary shaft 209 is also rotatably arranged between the vertical plates on both sides obliquely below the traction roller 400, and a plurality of auxiliary rollers 900 are sleeved on the auxiliary shaft 209. At the same time, a plurality of first gears 420 and second gears 920 meshing with each other are sleeved on the traction shaft 204 and the auxiliary shaft 209 respectively. The first gear 420 and the second gear 920 are respectively arranged between all adjacent traction rollers 400 and adjacent auxiliary shafts 209 to maintain stable transmission. Therefore, when the traction shaft 204 is driven by the motor, the auxiliary rollers 900 and the auxiliary shaft 209 will also rotate. The auxiliary roller 900 is used to contact and guide the coated wire before it enters the traction roller 400. Through the U-shaped arc surface 910 that is concave inward in the middle of the circumferential side of the auxiliary roller 900, and in conjunction with the rotation of the auxiliary roller 900, the coated wire that contacts the smooth U-shaped arc surface 910 is gathered to the middle of the auxiliary roller 900, especially the overstretched or broken coated wire, which is prevented from moving to the edge and being rolled into the auxiliary shaft 209. At the same time, the auxiliary roller 900 corresponds to the traction roller 400 in one-to-one position, thereby preventing the coated wire from being rolled into the traction shaft 204.

[0046] In this embodiment, the coated wire drawing mechanism is provided with a mounting frame 200 and a traction roller 400, so that the coated wire is guided by the traction roller 400 and wound into the reel while maintaining tension, and then cooperates with the second gear 920 and the first gear 420 that are meshed with each other on the auxiliary shaft 209 and the traction shaft 204 to drive the auxiliary roller 900, so that the coated wire is gathered to the middle of the traction roller 400, avoiding its movement to both sides and being wound into the traction shaft 204, thereby solving the problem in the prior art that the coated wire is wound into the rotating shaft of the traction roller, causing equipment failure and bringing safety hazards.

[0047] Preferably, in this embodiment, the radius and the number of teeth of the first gear 420 are greater than those of the second gear 920, that is, the transmission ratio of the second gear 920 to the first gear 420 is greater than 1, so that the angular velocity of the auxiliary shaft 209 is greater than the angular velocity of the traction shaft 204, and therefore the angular velocity of the auxiliary roller 900 is also greater than the angular velocity of the traction roller 400. When the traction roller 400 stretches and tractions the coated wire, the angular velocity of the auxiliary roller 900 is greater, which, on the one hand, makes the gathering efficiency higher; on the other hand, when the radius of the auxiliary roller 900 and the traction roller 400 are close, the speed of the auxiliary roller 900 and the coated wire in contact with its surface are not synchronized, which prevents the coated wire from being attached to the auxiliary roller 900 and being rolled into it.

[0048] In addition, in this embodiment, the first gear 420 and the second gear 920 can be directly arranged at the position close to the axial side of the traction roller 400 and the auxiliary roller 900, but this method will increase the risk of the gears contacting the coated wire, affecting the quality of the coated wire, and even causing the end of the coated wire to break. Therefore, preferably, the first gear 420 and the second gear 920 are respectively arranged at the center position between the adjacent traction roller 400 and the adjacent auxiliary roller 900, so as to maintain a certain distance from the traction roller 400 and the auxiliary roller 900 on both sides, which can effectively avoid the contact between the gears and the coated wire.

[0049] See also Figure 5 As a variation of the first embodiment, a second embodiment is also provided. In contrast, in the first embodiment, the first gear 420 and the second gear 920 are respectively arranged between all adjacent traction rollers 400 and adjacent auxiliary rollers 900, which can maintain the stability of the transmission, disperse the load, reduce the fatigue of the equipment material, and improve the service life. In the second embodiment, the first gear 420 and the second gear 920 are respectively arranged between the adjacent traction rollers 400 and the adjacent auxiliary rollers 900. The number of gears in the second embodiment is relatively small, and its advantage is that the probability of downtime caused by a single gear failure is reduced, and it can also save materials and reduce costs. In addition, as long as the transmission effect of the first gear 420 and the second gear 920 is maintained, the number of the first gear 420 and the second gear 920 can be further reduced in one or more embodiments.

[0050] However, in the above embodiment, since the raw materials spandex yarn and nylon yarn generally need to be heated and stretched before the winding process to increase the fineness, cooling and shaping after coating and before winding is more helpful to maintain the tension of the coated yarn and maintain the stability of its structure. However, it is not convenient to add an external cooling and shaping device, so based on the drafting device in the above embodiment, the following third embodiment is provided to further expand its function and meet actual needs.

[0051] See also Figure 6-Figure 7In the third embodiment, the auxiliary shaft 209 is set as a hollow ventilation shaft, one end of which is connected to a ventilation pipe; a ventilation duct is set inside the auxiliary roller 900 and is connected to the auxiliary shaft 209. At the same time, a plurality of axial air holes 911 parallel to the auxiliary shaft 209 are opened on the U-shaped arc surface 910 of the auxiliary roller 900. The axial wind input from the axial air holes 911 cooperates with the rotation of the auxiliary roller 900 to form a spiral-like wind, which will not blow away the coated wire on the surface of the auxiliary roller 900, and can cover all directions of the coated wire for efficient cooling, thereby ensuring that the coated wire maintains tension and structural stability during the winding process.

[0052] In the third embodiment, preferably, the axial air holes 911 can be divided into multiple groups and evenly distributed around the U-shaped arc surface 910, so that the temperature fluctuation of each section of the coated wire is reduced and the cooling effect is more uniform. Further, each group of axial air holes 911 can be symmetrically arranged on both sides of the concave center of the U-shaped arc surface 910, so that the temperature fluctuation of both sides of the coated wire is reduced and the cooling effect is more uniform.

[0053] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A coated yarn drafting mechanism, characterized in that: Include: The mounting frame (200) has two vertical plates, between which a traction shaft (204) and an auxiliary shaft (209) are rotatably arranged, and the auxiliary shaft (209) is located obliquely below the traction shaft (204); A plurality of traction rollers (400) are sleeved on the traction shaft (204), and a rubber sheath is provided on the circumferential side surface of the traction rollers (400); and A plurality of auxiliary rollers (900) are sleeved on the auxiliary shaft (209) and correspond one to one with the positions of the traction rollers (400), and the circumferential side surfaces of the auxiliary rollers (900) are smooth U-shaped arc surfaces; The traction shaft (204) and the auxiliary shaft (209) are respectively sleeved with a plurality of mutually meshing first gears (420) and second gears (920); when the traction shaft (204) is driven by a motor, it drives the auxiliary roller (900) to rotate and gather the coated wires.

2. The coated yarn drafting mechanism according to claim 1, characterized in that: The mounting frame (200) further comprises at least: A fourth mounting plate (207), an upper winding shaft (208), a third mounting plate (205), a lower winding shaft (206), the traction shaft (204), a second mounting plate (203), a first mounting plate (202), and a feeding shaft (201) are sequentially arranged from top to bottom; The upper winding shaft (208), the lower winding shaft (206) and the feeding shaft (201) are all rotatably arranged and are respectively sleeved with an upper winding roller (280), a lower winding roller (260) and a wire drum (210); the fourth mounting plate (207), the third mounting plate (205), the second mounting plate (203) and the first mounting plate (202) are respectively mounted with an upper winding drum (270), a lower winding drum (250), an outer covering component (230) and an inner covering component (220).

3. The coated yarn drafting mechanism according to claim 1, characterized in that: The transmission ratio between the second gear (920) and the first gear (420) is greater than 1.

4. The coated yarn drafting mechanism according to claim 1, characterized in that: The first gear (420) and the second gear (920) are respectively arranged at the center position between the adjacent traction rollers (400) and the adjacent auxiliary rollers (900).

5. The coated yarn drafting mechanism according to claim 1, characterized in that: The first gear (420) and the second gear (920) are respectively arranged between all adjacent traction rollers (400) and adjacent auxiliary rollers (900).

6. The coated yarn drafting mechanism according to claim 1, characterized in that: The first gear (420) and the second gear (920) are respectively arranged at intervals between adjacent traction rollers (400) and adjacent auxiliary rollers (900).

7. The coated yarn drafting mechanism according to any one of claims 1 to 6, characterized in that: The auxiliary shaft (209) is a hollow ventilation shaft; a ventilation duct is provided inside the auxiliary roller (900) and is in communication with the auxiliary shaft (209); and an axial air hole (911) is provided on the U-shaped arc surface (910).

8. The coated yarn drafting mechanism according to claim 7, characterized in that: The axial air holes (911) are divided into multiple groups and are evenly distributed in the circumferential direction of the U-shaped arc surface (910).

9. The coated yarn drafting mechanism according to claim 8, characterized in that: Each group of the axial air holes (911) is symmetrically arranged on both sides of the recessed center of the U-shaped arc surface (910).

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