CN221681287U - Elastic clip type drafting device for spinning frame - Google Patents

Abstract

The utility model relates to the technical field of spinning frames, in particular to an elastic clamping sheet type drafting device of a spinning frame, which comprises roller orange, wherein a row of roller sliding seats are arranged above the roller orange, a side surface of each roller sliding seat is provided with an elastic clamping sheet, a lower pin is arranged between the elastic clamping sheet and each roller sliding seat, the inside of an assembly hole is provided with a fixing bolt, a V-shaped clamping point is die-cast at the middle upper part of each elastic clamping sheet, the elastic clamping sheet is detachably connected with each roller sliding seat through the fixing bolt and the assembly hole, the elastic clamping sheet is elastically abutted with the lower pin through the V-shaped clamping point, and a certain distance is reserved between the elastic clamping sheet and the side surface of each roller sliding seat, so that the lower pin is tightly attached between the elastic clamping sheet and the roller sliding seat under the action of the V-shaped clamping point of the elastic clamping sheet. The elastic clamping piece can completely cling the lower pin to the side surface of the roller slide seat, so that the inconsistent front and rear positions of the rubber ring jaw are avoided, the fiber control capability is enhanced, the yarn quality level is improved, and the difference between spindles is reduced.

Description

Elastic clip type drafting device for spinning frame

Technical Field

The utility model relates to the technical field of spinning frames, in particular to an elastic clip-type drafting device for a spinning frame.

Background Art

The drafting device is a mechanism that plays a major role in spinning and drafts the roving into the original fibers of the spun yarn. After passing through the drafting mechanism, the number of fibers in the yarn strands is reduced, and after subsequent processes, the roving is spun into spun yarn. The traditional spinning machine drafting device has three rollers, upper, middle and lower, and the yarn is drafted by using the linear speed difference between the rollers. There are two zones between the three rollers, namely the main drafting zone between the upper and middle rollers and the post-drafting zone between the middle and lower rollers. The three rollers have different requirements for the center distance according to the different lengths of the fibers. The three rollers are equipped with rollers with different pressures according to the process requirements, so that the roving becomes a spun yarn that meets the requirements when passing through the two drafting zones.

For example, the drafting device of the spinning frame with the publication number CN101660232A comprises a roller seat, upper, middle and lower rollers installed on the roller seat and an apron led from the lower roller to the middle roller, a tensioning roller installed in the apron to fold the apron and make the back of the apron wrap around the middle roller, an apron roller is arranged inside the apron, and an apron pressure roller is arranged outside the apron; the apron tensioning roller is pressed against the middle roller through the apron so that the apron is clamped and driven by the middle roller and the apron tensioning wheel; an apron plate with a length between the upper and lower rollers is arranged inside the apron, the apron plate has a flat surface lined on the working surface of the apron, the apron roller is arranged on the front and rear ends of the apron plate, and the radius of the apron roller is less than 1/2 of the radius of the roller; there are a plurality of apron pressure rollers, which are arranged outside the working surface of the apron, and the apron pressure roller presses the apron against the apron plate.

When the spinning frame is started and maintained, in order to keep the lower pin, tension frame, rubber ring clean and tidy and replace the lower rubber ring, the lower pin must be frequently disassembled and assembled. In this case, the ordinary lower pin clamps collide multiple times, and the ordinary lower pin clamps are skewed, resulting in an increase in the gap between the clamps and the lower pins. The hazards of the increase in the gap between the clamps and the lower pins: in normal operation, after the rubber ring is subjected to force, the lower pin will extend forward and will not be flush with the top of the upper pin jaws. In severe cases, the yarn will be poorly drafted and hard heads will appear during production; in terms of yarn quality, there are inherent quality problems such as uneven yarn dryness, coarse and fine details, and the quality differences between spindles are large. Manual maintenance and repair are troublesome and labor-intensive, which affects the start-up rate of the machine. For this reason, we provide a spinning frame elastic clamp-type drafting device.

Utility Model Content

The utility model aims to provide an elastic clip-type drafting device for a spinning frame to solve the problems raised in the above-mentioned background technology.

In order to solve the above technical problems, the utility model adopts the following technical solutions:

The invention discloses an elastic clip-type drafting device for a spinning frame, comprising a roller orange, a row of roller slides are installed above the roller orange, a rotatable middle roller is arranged in parallel on the roller slide, a row of lower rubber rings are sleeved on the middle roller, an elastic clip is installed on the side of the roller slide, a lower pin is installed between the elastic clip and the roller slide, two assembly holes are provided in the middle and lower part of the elastic clip, fixing bolts are installed inside the assembly holes, and a V-shaped clamping point is die-casted in the middle and upper part of the elastic clip.

As a further description of the above technical solution: the elastic clip is detachably connected to the roller slide through a fixing bolt and an assembly hole, the elastic clip is elastically abutted against the lower pin through a V-shaped clamping point, and there is a certain distance between the elastic clip and the side of the roller slide, so that the lower pin is tightly attached between the elastic clip and the roller slide surface under the action of the V-shaped clamping point of the elastic clip.

As a further description of the above technical solution: a front roller is provided in front of the middle roller, and the front roller is rotatably mounted on the roller.

As a further description of the above technical solution: a rear roller is provided behind the middle roller, and the rear roller is rotatably mounted on the roller.

As a further description of the above technical solution: a tension frame is provided on the rear roller, the tension frame is in a U-shaped structure, one end of the tension frame is inserted into the lower rubber ring, and the lower rubber ring is tensioned with the tension frame having a certain amount of elasticity.

It can be seen from the above description that the technical problem to be solved by this application can definitely be solved through the above technical solution of this application.

At the same time, through the above technical solutions, the utility model has at least the following beneficial effects:

The utility model can completely cling the lower pin to the side of the roller slide seat due to the elastic clip, thereby avoiding inconsistent front and rear positions of the rubber ring jaws, enhancing the fiber control capability, improving the yarn quality level, and reducing the difference between spindles; since the lower pin is prevented from loosening and the upper and lower rubber ring jaws are uneven, 70 man-hours/8 hours are saved for each 10,000 spindles per year in maintenance, repair and overhaul; since the lower pin is prevented from loosening and the upper and lower rubber ring jaws are uneven, the downtime is reduced during the production process, and the production efficiency is improved by 0.045%.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the structure of the utility model;

FIG. 2 is a schematic diagram of the elastic clip structure of the utility model.

In the figure: 1. Roller orange; 2. Roller slide; 3. Front roller; 4. Middle roller; 5. Rear roller; 6. Tension frame; 7. Lower rubber ring; 8. Lower pin; 9. Elastic clip; 10. Fixing bolt; 11. Assembly hole; 12. V-shaped clamping point.

DETAILED DESCRIPTION

In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

1-2, the utility model provides an elastic clip-type drafting device for a spinning machine: it includes a roller orange 1, a row of roller slides 2 are installed above the roller orange 1, a rotatable middle roller 4 is arranged in parallel on the roller slide 2, a row of lower rubber rings 7 are sleeved on the middle roller 4, an elastic clip 9 is installed on the side of the roller slide 2, the elastic clip 9 selects a good material hardness and sheet thickness so that it has a certain elasticity, a lower pin 8 is installed between the elastic clip 9 and the roller slide 2, two assembly holes 11 are provided in the middle and lower part of the elastic clip 9, a fixing bolt 10 is installed inside the assembly hole 11, a V-shaped clamping point 12 is die-casted in the middle and upper part of the elastic clip 9, and the V-shaped clamping point 12 is die-cast in the middle and upper part of the elastic clip 9, which is conducive to the clamping of the lower pin and can meet the up and down disassembly of the lower pin 8, and the elastic clip 9 is fixed by the fixing bolt 1 0. The assembly hole 11 and the roller slide 2 are detachably connected, and the elastic clip 9 is elastically abutted against the lower pin 8 through the V-shaped clamping point 12. The elastic clip 9 has a certain distance from the side of the roller slide 2, so that the lower pin 8 is tightly attached between the elastic clip 9 and the roller slide 2 under the action of the V-shaped clamping point 12 of the elastic clip 9. Since the elastic clip 9 can completely attach the lower pin 8 to the side of the roller slide 2, the front and back inconsistency of the rubber ring jaws is avoided, the fiber control ability is enhanced, the yarn quality level is improved, and the difference between spindles is reduced; since the lower pin 8 is prevented from loosening and the upper and lower rubber ring jaws are uneven, 70 work/8 hours are saved for each 10,000 spindles per year of maintenance, maintenance and repair; since the lower pin 8 is prevented from loosening and the upper and lower rubber ring jaws are uneven, the downtime is reduced during the production process, and the production efficiency is improved by 0.045%.

As a further implementation scheme of the above technical scheme: a front roller 3 is provided in front of the middle roller 4, and the front roller 3 is rotatably mounted on the roller orange 1.

As a further implementation scheme of the above technical scheme: a rear roller 5 is provided behind the middle roller 4, and the rear roller 5 is rotatably mounted on the roller orange 1.

As a further implementation scheme of the above technical scheme: a tension frame 6 is sleeved on the rear roller 5, the tension frame 6 is a U-shaped structure, one end of the tension frame 6 is inserted into the lower rubber ring 7, and the lower rubber ring 7 is tensioned with the tension frame 6 having a certain amount of elasticity.

During specific implementation, rows of roller oranges 1 are fixed on the surface of the spinning machine, and rows of roller slides 2 and front rollers 3 are arranged on the roller oranges 1. Middle rollers 4 and lower pins 8 passing through rows of rubber rings are installed in parallel on the roller slides 2. The lower rubber ring 7 is tensioned by a tension frame 6 corresponding to a certain amount of elasticity. The elastic clip 9 fixed on the side of the roller slide 2 clamps the lower pin 8 so that the lower pin 8 is close to the side of the roller slide 2.

The elastic clip 9 is fixed to the side of the roller slide 2 by a fixing bolt 10. The material hardness and thickness of the elastic clip 9 are selected so that it has a certain elasticity. The upper part of the elastic clip 9 is die-cast into a V-shaped clamping point 12, which is conducive to the clamping of the lower pin 8 and can meet the requirements of the upper and lower disassembly of the lower pin 8.

When the lower pin 8 is inserted into the slot formed by the elastic clip 9 and the side of the roller slide 2, the elastic clip 9 opens slightly. At this time, the V-shaped clamping point 12 is flush with the root of the elastic clip 9. The V-shaped clamping point 12 presses the lower pin 8 against the side of the roller slide 2. The lower rubber ring 7 sleeved on the lower pin 8 can maintain consistent parallelism under the action of the tension frame 6; when the lower pin 8 removes the slot, the elastic clip 9 returns to its normal state.

Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (5)

1. An elastic clip-type drafting device for a spinning machine, comprising: a roller orange (1), a row of roller slides (2) are installed above the roller orange (1), a rotatable middle roller (4) is arranged in parallel on the roller slide (2), and a row of lower rubber rings (7) are sleeved on the middle roller (4), characterized in that an elastic clip (9) is installed on the side of the roller slide (2), a lower pin (8) is installed between the elastic clip (9) and the roller slide (2), two assembly holes (11) are opened in the lower part of the elastic clip (9), a fixing bolt (10) is installed inside the assembly hole (11), and a V-shaped clamping point (12) is die-casted in the upper part of the elastic clip (9). 2. The elastic clip-type stretching device of the spinning frame according to claim 1 is characterized in that the elastic clip (9) is detachably connected to the roller slide (2) through a fixing bolt (10) and an assembly hole (11), and the elastic clip (9) is elastically abutted against the lower pin (8) through a V-shaped clamping point (12). 3. The elastic clip-type stretching device of the spinning frame according to claim 1 is characterized in that a front roller (3) is provided in front of the middle roller (4), and the front roller (3) is rotatably mounted on the roller orange (1). 4. The elastic clip-type drafting device of the spinning frame according to claim 1 is characterized in that a rear roller (5) is provided behind the middle roller (4), and the rear roller (5) is rotatably mounted on the roller orange (1). 5. The elastic clip-type stretching device of the spinning frame according to claim 4 is characterized in that a tension frame (6) is provided on the rear roller (5), the tension frame (6) is a U-shaped structure, and one end of the tension frame (6) is inserted into the lower rubber ring (7).