Doffing mechanism

Abstract

The utility model relates to the technical field of spinning frames, in particular to a doffing mechanism which comprises an installation frame, a positioning frame and an auxiliary assembly, the positioning frame is installed on the side surface of the installation frame, a driving rod is arranged on the inner wall of the positioning frame, a first support is installed on the surface of the driving rod, a first connecting arm is installed on the inner wall of the first support, and a second connecting arm is installed on the inner wall of the second support. A second support is installed on the surface of the driving rod, a second connecting arm is installed on the inner wall of the second support, the first connecting arm is hinged to the inner wall of the second connecting arm, and the auxiliary assembly is arranged on the surface of the driving rod; the auxiliary assembly comprises a scraping unit, the scraping unit comprises a collecting cover, and the collecting cover is slidably connected with the surface of the driving rod. According to the device, the auxiliary assembly is arranged, so that impurities on the surface of the device can be cleaned when the device runs, the problem that abrasion of the device is aggravated due to the fact that the impurities are attached to the surface of the device is solved, the stability of the device is further improved, and the service life of the device is further prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of spinning machines, in particular to a doffing mechanism. Background Art

[0002] The spinning frame is an important equipment in the textile industry. It is mainly used to further stretch and twist the coarse yarn to spin it into fine yarn that meets the requirements. The spinning frame usually consists of multiple parts, including a drafting mechanism, a twisting and winding mechanism, a transmission system, etc. The drafting mechanism is responsible for stretching and thinning the coarse yarn, and the twisting and winding mechanism adds twist to the yarn and winds it into a package yarn. Its working principle is to stretch the yarn through a series of rollers and leather rollers, and at the same time the spindle rotates at high speed to achieve twisting. The performance of the spinning frame directly affects the quality and output of the yarn. For example, higher spinning speeds and more uniform yarn quality can improve production efficiency and product competitiveness. In textile production, the continuous improvement and innovation of the spinning frame is of great significance to improving the level of the entire textile industry.

[0003] The prior art, such as the utility model with publication number CN219174698U, discloses an inclined doffing mechanism. The patent adopts a frame, and also includes a driving mechanism arranged inside the frame and a doffing mechanism arranged on both sides of the frame. The driving mechanism includes a driving cylinder, a limiting cylinder, a fixed seat and a connecting rod. The driving cylinder is arranged on the inner wall of one side of the fixed seat, the limiting cylinder is arranged on the inner wall of one side of the fixed seat, the connecting rod is connected to the output end of the driving cylinder, the connecting rod is connected to the doffing mechanism, and the output end of the limiting cylinder abuts against the output end of the driving cylinder, so that the doffing mechanism swings outward at an angle. Adjustable; the inclined yarn-docking mechanism provided by the utility model can make the output end of the driving cylinder have multiple gears. By making the driving cylinder have multiple gears, the yarn-docking mechanism connected to the driving cylinder through the connecting rod has multiple gears when it swings outward, so that the yarn-docking mechanism can stay at a preset angle when it swings outward, which is convenient for the yarn-docking mechanism to clamp and store the yarn tubes on the frame, and solves the problem that the existing collective yarn-docking device is difficult to control the outward swing angle when it swings away from the frame, and a lot of time is needed to adjust the outward swing angle of the collective yarn-docking device during equipment debugging.

[0004] In the process of using the doffing mechanism, most of the driving rods of the existing doffing mechanisms on the market are exposed to the air. In the actual operation process, dust or fibers in the air will fall on the surface of the driving rod. Since some mechanisms will move on the driving rod, under the influence of dust or fibers, some mechanisms will accelerate the wear of the driving rod during the movement, which will further increase the wear of the driving rod and reduce the accuracy and service life of the driving rod. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings in the prior art that under the influence of dust or fibers, some mechanisms will accelerate the wear of the driving rod during movement, which will further lead to increased wear of the driving rod and reduce the accuracy and service life of the driving rod, and thus propose a yarn dropping mechanism.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a doffing mechanism, comprising a mounting frame, a positioning frame and an auxiliary component, wherein the positioning frame is mounted on the side surface of the mounting frame, a driving rod is arranged on the inner wall of the positioning frame, a first bracket is mounted on the surface of the driving rod, a first connecting arm is mounted on the inner wall of the first bracket, a second bracket is mounted on the surface of the driving rod, a second connecting arm is mounted on the inner wall of the second bracket, the first connecting arm is hinged to the inner wall of the second connecting arm, and the auxiliary component is arranged on the surface of the driving rod;

[0007] The auxiliary component includes a scraping unit, and the scraping unit includes a collecting cover, the collecting cover is slidably connected to the surface of the driving rod, the collecting cover is fixedly connected to the side surface of the first bracket, the inner wall of the collecting cover is fixedly connected with a chamfered scraping ring, the chamfered scraping ring is slidably connected to the surface of the driving rod, the side surface of the collecting cover is fixedly connected with a retaining ring, the outer circumference of the collecting cover is fixedly connected with a connecting nozzle, and the connecting nozzle is connected to the inner wall of the collecting cover;

[0008] The auxiliary component also includes a suction unit, which includes an extraction pipe, the extraction pipe is fixedly connected to the side surface of the mounting frame, the input end of the extraction pipe is fixedly connected to a connecting pipe, the connecting pipe is fixedly connected to the output end of the connecting nozzle, the inner wall of the extraction pipe is slidably connected to a piston, the side surface of the piston is fixedly connected to a connecting rod, the lower surface of the extraction pipe is provided with an installation cavity, the extraction pipe is located at the inner wall of the installation cavity and is threadedly connected to a storage tank, the inner wall of the storage tank is installed with a guide funnel, the guide funnel is connected to the inner wall of the extraction pipe, the side surface of the retaining ring is fixedly connected to a linkage rod, the side surface of the linkage rod is fixedly connected to a connecting frame, the connecting frame is fixedly connected to the side surface of the connecting rod, and the inner wall of the extraction pipe is fixedly connected to a filter.

[0009] Preferably, the inner diameter of the retaining ring is larger than the diameter of the driving rod, and the retaining ring can shield the dust or fibers in the collecting hood to increase the collecting effect of the collecting hood.

[0010] Preferably, the connecting nozzle is communicated with the interior of the connecting pipe, and the connecting pipe and the collecting cover can be connected through the connecting nozzle, so that when the connecting pipe generates suction, the impurities in the collecting cover can be sucked into the extraction pipe.

[0011] Preferably, the extraction tube is communicated with the inner wall of the connecting tube, and through the cooperation between the extraction tube and the piston, suction can be generated during the movement of the piston to absorb impurities in the collection cover.

[0012] Preferably, the piston abuts against the side surface of the filter, and the sucked air can be filtered through the filter to isolate impurities at the front end of the extraction tube and ensure that the impurities can fall into the guide funnel.

[0013] Preferably, the length of the connecting rod is greater than the length of the extraction tube, and the connecting rod is T-shaped. The connecting frame and the piston can be connected through the connecting rod, so that the connecting frame can pull the piston to move when being pushed.

[0014] Compared with the prior art, the advantages and positive effects of the utility model are:

[0015] In the utility model, by setting an auxiliary component, when working, the driving structure installed on the frame drives the driving rod, and the driving rod pulls the first connecting arm under the cooperation of the first bracket, and the first connecting arm is gradually unfolded under the guidance of the second connecting arm and the second bracket, and the clamping mechanism installed at the free end of the first connecting arm is lifted upward during the unfolding process; when the first bracket moves, the first bracket pushes the collecting cover, and the collecting cover pushes the chamfered scraper ring, and the chamfered scraper ring cleans the surface of the driving rod, and the cleaned impurities fall into the collecting area formed by the collecting cover and the retaining ring, and at the same time, the retaining ring cooperates with the linkage rod to push the connecting frame when moving, and the connecting frame pulls the connecting rod, and the connecting rod pulls the piston, and the piston moves The air in the connecting pipe is extracted by the extraction pipe. The connecting pipe generates suction under the action of the piston and the extraction pipe, and cooperates with the connecting nozzle to suck the impurities in the collection cover into the extraction pipe. When the impurities enter the extraction pipe, they are blocked by the filter and fall into the guide funnel. The guide funnel guides the impurities to the storage tank for centralized storage. When the impurities in the storage tank need to be processed, the storage tank is removed, the guide funnel in the storage tank is taken out, and the impurities are poured out. By setting auxiliary components, the impurities on the surface of the equipment can be cleaned during operation, thereby reducing the problem of impurities adhering to the surface of the equipment, which will aggravate the wear of the equipment, and further improve the stability and service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional structural schematic diagram of a doffing mechanism is proposed for the utility model;

[0017] Figure 2 A side structural schematic diagram of a doffing mechanism is proposed for the utility model;

[0018] Figure 3 The utility model proposes a doffing mechanism Figure 2 Schematic diagram of the structure at A in the middle;

[0019] Figure 4 The utility model provides a schematic diagram of the structure of an auxiliary component of a doffing mechanism;

[0020] Figure 5 The utility model proposes a doffing mechanism Figure 4 Schematic diagram of the structure at point B in the middle.

[0021] Legend:

[0022] 1. Mounting frame; 2. Positioning frame; 3. Driving rod; 4. First bracket; 5. First connecting arm; 6. Second bracket; 7. Second connecting arm; 8. Auxiliary components; 81. Scraping unit; 811. Collecting cover; 812. Chamfered scraping ring; 813. Retaining ring; 814. Connecting nozzle; 82. Suction unit; 821. Extraction tube; 822. Connecting tube; 823. Piston; 824. Connecting rod; 825. Storage tank; 826. Guide funnel; 827. Linkage rod; 828. Connecting frame; 829. Filter. DETAILED DESCRIPTION

[0023] See also Figure 1-Figure 5 The utility model provides a technical solution: a doffing mechanism, comprising a mounting frame 1, a positioning frame 2 and an auxiliary component 8, the positioning frame 2 is mounted on the side surface of the mounting frame 1, a driving rod 3 is arranged on the inner wall of the positioning frame 2, a first bracket 4 is mounted on the surface of the driving rod 3, a first connecting arm 5 is mounted on the inner wall of the first bracket 4, a second bracket 6 is mounted on the surface of the driving rod 3, a second connecting arm 7 is mounted on the inner wall of the second bracket 6, the first connecting arm 5 is hinged to the inner wall of the second connecting arm 7, and the auxiliary component 8 is arranged on the surface of the driving rod 3.

[0024] In this embodiment: the auxiliary component 8 includes a scraping unit 81, and the scraping unit 81 includes a collecting cover 811, the collecting cover 811 is slidably connected to the surface of the driving rod 3, the collecting cover 811 is fixedly connected to the side surface of the first bracket 4, the inner wall of the collecting cover 811 is fixedly connected with a chamfered scraping ring 812, the chamfered scraping ring 812 is slidably connected to the surface of the driving rod 3, the side surface of the collecting cover 811 is fixedly connected with a retaining ring 813, the outer circumference of the collecting cover 811 is fixedly connected with a connecting nozzle 814, and the connecting nozzle 814 is connected to the inner wall of the collecting cover 811;

[0025] The auxiliary component 8 also includes a suction unit 82, which includes an extraction pipe 821, which is fixedly connected to the side surface of the mounting frame 1, and the input end of the extraction pipe 821 is fixedly connected to a connecting pipe 822, which is fixedly connected to the output end of the connecting nozzle 814, and the inner wall of the extraction pipe 821 is slidably connected to a piston 823, and the side surface of the piston 823 is fixedly connected to a connecting rod 824, and the lower surface of the extraction pipe 821 is provided with a mounting cavity. The extraction tube 821 is located in the inner wall of the installation cavity and is threadedly connected to a storage tank 825. A guide funnel 826 is installed on the inner wall of the storage tank 825. The guide funnel 826 is connected to the inner wall of the extraction tube 821. The side surface of the retaining ring 813 is fixedly connected to a linkage rod 827. The side surface of the linkage rod 827 is fixedly connected to a connecting frame 828. The connecting frame 828 is fixedly connected to the side surface of the connecting rod 824. The inner wall of the extraction tube 821 is fixedly connected to a filter screen 829.

[0026] Specifically, the inner diameter of the retaining ring 813 is greater than the diameter of the driving rod 3 , and the retaining ring 813 can shield the dust or fibers in the collecting cover 811 to increase the collecting effect of the collecting cover 811 .

[0027] Specifically, the connection nozzle 814 is communicated with the interior of the connection pipe 822 .

[0028] In this embodiment, the connecting pipe 822 and the collecting cover 811 can be connected via the connecting nozzle 814 , so that when the connecting pipe 822 generates suction, the impurities in the collecting cover 811 can be sucked into the extraction pipe 821 .

[0029] Specifically, the extraction tube 821 is connected to the inner wall of the connecting tube 822 . Through the cooperation between the extraction tube 821 and the piston 823 , suction can be generated during the movement of the piston 823 to absorb impurities in the collection cover 811 .

[0030] In this embodiment, the piston 823 abuts against the side surface of the filter screen 829 .

[0031] In this embodiment, the sucked air can be filtered through the filter 829 to isolate impurities at the front end of the extraction pipe 821 and ensure that the impurities can fall into the guide funnel 826.

[0032] Specifically, the length of the connecting rod 824 is greater than the length of the extraction tube 821, and the connecting rod 824 is T-shaped. The connecting frame 828 and the piston 823 can be connected through the connecting rod 824, so that the connecting frame 828 can pull the piston 823 to move when being pushed.

[0033] Working principle: when working, the driving structure installed on the frame drives the driving rod 3, and the driving rod 3 pulls the first connecting arm 5 with the cooperation of the first bracket 4. The first connecting arm 5 is gradually unfolded under the guidance of the second connecting arm 7 and the second bracket 6, and the clamping mechanism installed at the free end of the first connecting arm 5 is lifted upward during the unfolding process; when the first bracket 4 moves, the first bracket 4 pushes the collecting cover 811, and the collecting cover 811 pushes the chamfered scraper ring 812, and the chamfered scraper ring 812 cleans the surface of the driving rod 3, and the cleaned impurities fall into the collecting area formed by the collecting cover 811 and the retaining ring 813. At the same time, the retaining ring 813 cooperates with the linkage rod 827 to push the connecting frame 828 when moving, and the connecting frame 828 pulls the connecting rod 824, and the connecting rod 824 pulls the piston 823, and the piston 823 cooperates with the extraction tube when moving. 821 extracts air from the connecting pipe 822. The connecting pipe 822 generates suction under the action of the piston 823 and the extraction pipe 821, and cooperates with the connecting nozzle 814 to suck the impurities in the collection cover 811 into the extraction pipe 821. When the impurities enter the extraction pipe 821, they are blocked by the filter 829 and fall into the guide funnel 826. The guide funnel 826 guides the impurities to the storage tank 825 for centralized storage. When the impurities in the storage tank 825 need to be processed, the storage tank 825 is removed, the guide funnel 826 in the storage tank 825 is taken out, and the impurities are poured out. By setting the auxiliary component 8, the impurities on the surface of the equipment can be cleaned during operation, thereby reducing the problem of impurities adhering to the surface of the equipment, which will aggravate the wear of the equipment, and further improve the stability and service life of the equipment.

Claims

1. A doffing mechanism, comprising a mounting frame (1), a positioning frame (2) and an auxiliary component (8), characterized in that: The positioning frame (2) is mounted on the side surface of the mounting frame (1); a driving rod (3) is arranged on the inner wall of the positioning frame (2); a first bracket (4) is mounted on the surface of the driving rod (3); a first connecting arm (5) is mounted on the inner wall of the first bracket (4); a second bracket (6) is mounted on the surface of the driving rod (3); a second connecting arm (7) is mounted on the inner wall of the second bracket (6); the first connecting arm (5) is hinged to the inner wall of the second connecting arm (7); and the auxiliary component (8) is arranged on the surface of the driving rod (3); The auxiliary component (8) comprises a scraping unit (81), the scraping unit (81) comprises a collecting hood (811), the collecting hood (811) is slidably connected to the surface of the driving rod (3), the collecting hood (811) is fixedly connected to the side surface of the first bracket (4), the inner wall of the collecting hood (811) is fixedly connected with a chamfered scraping ring (812), the chamfered scraping ring (812) is slidably connected to the surface of the driving rod (3), the side surface of the collecting hood (811) is fixedly connected with a retaining ring (813), the outer circumference of the collecting hood (811) is fixedly connected with a connecting nozzle (814), and the connecting nozzle (814) is in communication with the inner wall of the collecting hood (811); The auxiliary component (8) further comprises a suction unit (82), wherein the suction unit (82) comprises an extraction pipe (821), wherein the extraction pipe (821) is fixedly connected to the side surface of the mounting frame (1), wherein the input end of the extraction pipe (821) is fixedly connected to a connecting pipe (822), wherein the connecting pipe (822) is fixedly connected to the output end of the connecting nozzle (814), wherein the inner wall of the extraction pipe (821) is slidably connected to a piston (823), wherein the side surface of the piston (823) is fixedly connected to a connecting rod (824), and wherein the lower surface of the extraction pipe (821) is provided with a mounting hole. The extraction tube (821) is located in the installation cavity and is threadedly connected to the inner wall of the storage tank (825). The inner wall of the storage tank (825) is installed with a guide funnel (826). The guide funnel (826) is connected to the inner wall of the extraction tube (821). The side surface of the retaining ring (813) is fixedly connected to a linkage rod (827). The side surface of the linkage rod (827) is fixedly connected to a connecting frame (828). The connecting frame (828) is fixedly connected to the side surface of the connecting rod (824). The inner wall of the extraction tube (821) is fixedly connected to a filter screen (829).

2. A doffing mechanism according to claim 1, characterized in that: The inner diameter of the retaining ring (813) is greater than the diameter of the driving rod (3).

3. A doffing mechanism according to claim 1, characterized in that: The connection nozzle (814) is communicated with the interior of the connection pipe (822).

4. A doffing mechanism according to claim 1, characterized in that: The extraction pipe (821) is communicated with the inner wall of the connecting pipe (822).

5. A doffing mechanism according to claim 1, characterized in that: The piston (823) abuts against the side surface of the filter (829).

6. A doffing mechanism according to claim 1, characterized in that: The length of the connecting rod (824) is greater than the length of the extraction tube (821), and the connecting rod (824) is T-shaped.

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