Yarn feeding device for rotor spinning machine

Abstract

The utility model relates to the technical field of rotor spinning machine yarn feeding devices, and discloses a rotor spinning machine yarn feeding device which comprises a yarn feeding cylinder, a base is installed at the bottom of the yarn feeding cylinder through supporting legs, a yarn pushing disc is placed on the lower portion of the interior of the yarn feeding cylinder, and a hydraulic cylinder is fixed to the center of the top of the base. An extension rod in the hydraulic cylinder is inserted into the yarn feeding cylinder and is connected with the bottom of the yarn pushing disc, fixing lugs are fixed to the two sides of the upper portion of the yarn feeding cylinder, supporting plates are detachably installed on the fixing lugs, fixing plates are fixed to the upper portions of the opposite faces of the supporting plates, and a set of movable sleeves are arranged on the fixing plates in a sleeving mode; according to the spinning yarn feeding device, the spinning yarn in the yarn feeding cylinder can be better limited and guided, the stability of spinning yarn conveying is improved, the spinning yarn is better smoothed, meanwhile, the height of the yarn pushing disc can be adjusted, the spinning yarn is not prone to being pulled too long, and then the spinning yarn is not prone to being wound together.

Description

Technical Field

[0001] The utility model relates to the technical field of yarn feeding devices for rotor spinning machines, in particular to a yarn feeding device for rotor spinning machines. Background Art

[0002] Rotor spinning is a type of open-end spinning method, named for the use of a rotor to condense single fibers. Initially, it primarily used airflow, also known in China as open-end spinning. Rotor spinning offers high spinning speeds, large winding capacity, and excellent suitability for spinning low-grade cotton and waste noil, while significantly improving the working environment.

[0003] Most of the existing rotor spinning machines feed yarn by directly storing it in the yarn bobbin, which directly supplies the rotor spinning machine with the yarn bobbin. Due to the simple structure of the yarn bobbin, when the storage amount of yarn in the yarn bobbin is reduced, the yarn is easily entangled due to excessive pulling, thereby affecting the yarn feeding effect, making the machine safety not guaranteed and affecting the processing efficiency.

[0004] In view of this, the present technical solution proposes a yarn feeding device for a rotor spinning machine, so as to better solve the above-mentioned problems. Utility Model Content

[0005] The technical solution adopted by the utility model is as follows: a yarn feeding device for a rotor spinning machine, comprising a yarn feeding drum, a base being mounted on the bottom of the yarn feeding drum via supporting legs, a yarn pushing disk being placed below the inside of the yarn feeding drum, a hydraulic cylinder being fixed at the top center position of the base, and a rod extending from the inside of the hydraulic cylinder being plugged into the inside of the yarn feeding drum and connected to the bottom of the yarn pushing disk;

[0006] Fixing ears are fixed on both sides of the upper side of the yarn feeding drum, and support plates are detachably mounted on the fixing ears;

[0007] A group of fixed plates are fixed above the opposite surfaces of the support plates, and a group of movable sleeves are provided on the fixed plates. Positioning bolts are threadedly connected above the movable sleeves, and the bottoms of the positioning bolts abut against the tops of the fixed plates. A front guide yarn roller and a rear guide yarn roller are provided between the fixed plates of the group, and the front guide yarn roller and the rear guide yarn roller are rotatably connected to the movable sleeves.

[0008] In a preferred embodiment, a through hole adapted to the extension rod of the hydraulic cylinder is opened at the lower part of the interior of the yarn feeding drum, and the extension rod of the hydraulic cylinder is inserted into the through hole.

[0009] In a preferred embodiment, the extended length of the hydraulic cylinder extension rod is greater than the height of the yarn feeding drum.

[0010] In a preferred embodiment, a positioning groove is provided inside the fixing ear, and a positioning plate is inserted into the positioning groove. A locking plate is rotatably installed on the bottom of the positioning plate, and the locking plate is fitted to the bottom of the fixing ear after rotation. The top of the positioning plate is fixedly connected to the bottom of the support plate.

[0011] In a preferred embodiment, the locking plate is mounted on the bottom of the positioning plate through a rotating shaft and a bearing, and the locking plate has the same length and width as the positioning slot.

[0012] In a preferred embodiment, a screw plate is fixed on the bolt head of the positioning bolt to facilitate the assembly and disassembly of the positioning bolt.

[0013] In a preferred embodiment, the front yarn guide roller and the rear yarn guide roller are arranged opposite to each other, and the front yarn guide roller and the rear yarn guide roller have the same specifications.

[0014] To sum up, due to the adoption of the above-mentioned technical scheme, the beneficial effects of the utility model are: it is convenient to better limit and guide the spinning thread inside the yarn feeding drum, increase the stability of the spinning thread transportation, and better smooth the spinning thread. At the same time, the height of the yarn pushing disk can be adjusted, so that the spinning thread is not easy to be pulled too long, and thus the spinning thread is not easy to be tangled together.

[0015] 1. In the present invention, the hydraulic cylinder drives the yarn pushing disc to move upward inside the yarn feeding drum, thereby ensuring that the spinning thread inside the yarn feeding drum is not easily pulled too long, thereby preventing the spinning thread from being tangled together.

[0016] 2. In the present invention, the movable sleeves provided in front and behind the fixed plate can be moved by adjusting the positioning bolts. At the same time, the positioning bolts abut against the fixed plate to position the movable sleeves, so that the distance between the front guide roller and the rear guide roller is suitable for limiting and guiding the spinning line, thereby increasing the stability of the spinning line transportation and better smoothing the spinning line, so that the spinning line is not easily tangled together. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of a half-section structure of the present utility model;

[0018] Figure 2 This is a schematic diagram of the installation structure of the fixing ear and the support plate of the utility model;

[0019] Figure 3 For this utility model Figure 1 A magnified schematic diagram of the structure of area A in the middle.

[0020] Markings in the figure: 1- yarn feeding drum; 2- supporting leg; 3- base; 4- yarn pushing disc; 5- hydraulic cylinder; 6- fixing ear; 7- positioning slot; 8- supporting plate; 9- positioning plate; 10- locking plate; 11- fixing plate; 12- movable sleeve; 13- positioning bolt; 14- front guide roller; 15- rear guide roller. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0022] The following will be combined Figure 1-Figure 3 A yarn feeding device for a rotor spinning machine according to an embodiment of the present invention is described in detail.

[0023] refer to Figure 1 As shown, a yarn feeding device for a rotor spinning machine includes a yarn feeding drum 1, a base 3 is installed at the bottom of the yarn feeding drum 1 through a supporting leg 2, a yarn pushing disk 4 is placed at the bottom of the yarn feeding drum 1, a hydraulic cylinder 5 is fixed at the top center position of the base 3, and the internal extension rod of the hydraulic cylinder 5 is inserted into the interior of the yarn feeding drum 1 and connected to the bottom of the yarn pushing disk 4, a through hole adapted for the extension rod of the hydraulic cylinder 5 is opened at the bottom of the yarn feeding drum 1, and the extension rod of the hydraulic cylinder 5 is inserted in the through hole, the length of the extension rod of the hydraulic cylinder 5 is greater than the height of the yarn feeding drum 1, and the hydraulic cylinder 5 can be electrically connected to the external main control console, so as to facilitate the automatic control operation of the hydraulic cylinder 5.

[0024] According to the above technical solution, the hydraulic cylinder 5 drives the yarn pushing disc 4 to move upward inside the yarn feeding drum 1, thereby ensuring that the yarn inside the yarn feeding drum 1 is not easily pulled too long, and thus the yarn is not easily entangled.

[0025] refer to Figure 1-2 As shown, fixing ears 6 are fixed on both sides of the upper part of the yarn feeding drum 1, and a support plate 8 is detachably installed on the fixing ear 6. A positioning groove 7 is opened inside the fixing ear 6, and a positioning plate 9 is inserted into the positioning groove 7. A locking plate 10 is rotatably installed at the bottom of the positioning plate 9, and the locking plate 10 is fitted to the bottom of the fixing ear 6 after rotation. The top of the positioning plate 9 is fixedly connected to the bottom of the support plate 8. The locking plate 10 is installed at the bottom of the positioning plate 9 through a rotating shaft and a bearing. The locking plate 10 has the same length and width as the positioning groove 7.

[0026] According to the above technical solution, by inserting the positioning plate 9 into the positioning groove 7 and then rotating the locking plate 10 so that the locking plate 10 fits against the bottom of the fixing ear 6, the positioning plate 9 can be positioned in the positioning groove 7, and the support plate 8 is limited above the fixing ear 6.

[0027] refer to Figure 1 and 3 As shown, a group of supporting plates 8 are fixed with fixed plates 11 above the opposite surfaces, and a group of movable sleeves 12 are sleeved on the fixed plates 11, and a positioning bolt 13 is threadedly connected above the movable sleeve 12, and the bottom of the positioning bolt 13 abuts against the top of the fixed plate 11, and a screw plate is fixed on the bolt head of the positioning bolt 13 for easy disassembly and assembly of the positioning bolt 13. A front guide yarn roller 14 and a rear guide yarn roller 15 are provided between the group of fixed plates 11, and the front guide yarn roller 14 and the rear guide yarn roller 15 are rotatably connected to the movable sleeve 12, the front guide yarn roller 14 and the rear guide yarn roller 15 are arranged opposite to each other, and the front guide yarn roller 14 and the rear guide yarn roller 15 have the same specifications.

[0028] According to the above technical solution, the movable sleeve 12 arranged in front and behind the fixed plate 11 can be moved by adjusting the positioning bolt 13. At the same time, the positioning bolt 13 abuts against the fixed plate 11 to position the movable sleeve 12, so that the distance between the front guide roller 14 and the rear guide roller 15 is suitable for limiting and guiding the spinning line, increasing the stability of the spinning line transportation, and better smoothing the spinning line, so that the spinning line is not easily entangled.

[0029] The advantages of this application are: it is convenient to better limit and guide the spinning thread inside the yarn feeding drum 1, increase the stability of the spinning thread transportation, and better smooth the spinning thread. At the same time, the height of the yarn pushing disk 4 can be adjusted, so that the spinning thread is not easily pulled too long, and thus the spinning thread is not easily tangled together.

[0030] Working principle: By adjusting the positioning bolt 13, the movable sleeve 12 set in front and behind the fixed plate 11 can be moved. At the same time, the positioning bolt 13 abuts against the fixed plate 11 to position the movable sleeve 12, so that the distance between the front guide roller 14 and the rear guide roller 15 is suitable for limiting and guiding the spinning line, increasing the stability of the spinning line transportation, and better smoothing the spinning line, so that the spinning line is not easily tangled together.

[0031] When the amount of yarn inside the yarn feeding drum 1 decreases, the hydraulic cylinder 5 drives the yarn pushing disc 4 to move upward inside the yarn feeding drum 1, which can ensure that the yarn inside the yarn feeding drum 1 is not easily pulled too long, and thus the yarn is not easily entangled.

[0032] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A yarn feeding device for a rotor spinning machine, comprising a yarn feeding drum (1), characterized in that: The bottom of the yarn feeding drum (1) is provided with a base (3) via a supporting leg (2), a yarn pushing disk (4) is placed below the inside of the yarn feeding drum (1), a hydraulic cylinder (5) is fixed at the top center of the base (3), and a rod extending from the inside of the hydraulic cylinder (5) is inserted into the inside of the yarn feeding drum (1) and connected to the bottom of the yarn pushing disk (4); Fixed ears (6) are fixed on both sides of the upper side of the yarn feeding drum (1), and support plates (8) are detachably mounted on the fixed ears (6); A fixed plate (11) is fixed above the opposite surfaces of a group of support plates (8), and a group of movable sleeves (12) are sleeved on the fixed plates (11). A positioning bolt (13) is threadedly connected above the movable sleeve (12), and the bottom of the positioning bolt (13) abuts against the top of the fixed plate (11). A front guide roller (14) and a rear guide roller (15) are provided between the group of fixed plates (11), and the front guide roller (14) and the rear guide roller (15) are rotatably connected to the movable sleeve (12).

2. A yarn feeding device for a rotor spinning machine according to claim 1, characterized in that: A through hole adapted to the extension rod of the hydraulic cylinder (5) is provided at the lower interior of the yarn feeding drum (1), and the extension rod of the hydraulic cylinder (5) is inserted into the through hole.

3. A yarn feeding device for a rotor spinning machine according to claim 2, characterized in that: The extended length of the extension rod of the hydraulic cylinder (5) is greater than the height of the yarn feeding drum (1).

4. The yarn feeding device for a rotor spinning machine according to claim 1, wherein: A positioning groove (7) is provided inside the fixing ear (6), and a positioning plate (9) is inserted into the positioning groove (7). A locking plate (10) is rotatably installed at the bottom of the positioning plate (9), and the locking plate (10) is fitted to the bottom of the fixing ear (6) after rotation. The top of the positioning plate (9) is fixedly connected to the bottom of the support plate (8).

5. The yarn feeding device for a rotor spinning machine according to claim 4, characterized in that: The locking plate (10) is mounted on the bottom of the positioning plate (9) through a rotating shaft and a bearing. The locking plate (10) has the same length and width as the positioning groove (7).

6. The yarn feeding device for a rotor spinning machine according to claim 1, characterized in that: A screw plate is fixed on the bolt head of the positioning bolt (13) for facilitating the assembly and disassembly of the positioning bolt (13).

7. The yarn feeding device for a rotor spinning machine according to claim 1, characterized in that: The front yarn guide roller (14) and the rear yarn guide roller (15) are arranged opposite to each other, and the front yarn guide roller (14) and the rear yarn guide roller (15) have the same specifications.

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