CN115198407A - Collective doffing transformation method for spinning frame - Google Patents
Collective doffing transformation method for spinning frame Download PDFInfo
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- CN115198407A CN115198407A CN202211062887.8A CN202211062887A CN115198407A CN 115198407 A CN115198407 A CN 115198407A CN 202211062887 A CN202211062887 A CN 202211062887A CN 115198407 A CN115198407 A CN 115198407A
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- 238000009987 spinning Methods 0.000 title claims abstract description 108
- 238000011426 transformation method Methods 0.000 title description 3
- 238000005520 cutting process Methods 0.000 claims abstract description 45
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000002715 modification method Methods 0.000 claims description 7
- 238000002407 reforming Methods 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 abstract description 16
- 238000010276 construction Methods 0.000 abstract description 3
- 230000009466 transformation Effects 0.000 description 6
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000009420 retrofitting Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Classifications
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H9/00—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine
- D01H9/02—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine for removing completed take-up packages and replacing by bobbins, cores, or receptacles at take-up stations; Transferring material between adjacent full and empty take-up elements
- D01H9/04—Doffing arrangements integral with spinning or twisting machines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
The invention discloses an integrated doffing reconstruction method for a spinning frame, which comprises the following steps: the outer side of the spinning machine is provided with an integrated doffing device; the collective doffing device comprises a colony air frame positioned outside the spindle, a colony tube gripper driven by the colony air frame, a bobbin seat and a bobbin conveying track positioned at the lower part of the spindle, and a bobbin; the outer side part of the wall plate supporting leg of the wall plate of the spinning frame is cut, so that the bobbin conveying track is arranged behind the outer side of the wall plate supporting leg, and the falling bobbin gripper can be used for gripping and putting bobbins at the spindle and the bobbin seat in the vertical direction. The colony tube grabbing device can grab out and put in the bobbin at the spindle and the bobbin seat in the vertical direction by cutting the supporting legs of the wall plate, so that a new mechanism is not required to be added, the stability is high, the construction period is short, and the cost is obviously reduced.
Description
Technical Field
The invention relates to a method for additionally assembling an old spinning machine for collective doffing reconstruction.
Background
The spinning frame is an important device with large area and wide quantity in the production flow of the textile industry, and the quality of the performance of the spinning frame directly influences various aspects such as the quality of finished yarn, the economic benefit and the like. The doffing process in the spinning process of the spinning frame is the most labor-intensive, so the spinning frame provided with the highly automated collective doffing device is the mainstream of the market. The technical improvement of the existing spinning machine which is not provided with the collective doffing device in the market becomes a necessary trend.
The motion process of the collective doffing device of the existing spinning frame is as follows: the colony air frame for installing the colony tube grabbing device moves up and down under the action of the herringbone connecting rod mechanism and swings along the herringbone connecting rod mechanism along the in-out direction under the action of the transversely moving in-out air cylinder, and the colony tube grabbing device approaches or leaves the bobbin through the lifting and swinging of the colony air frame, so that the bobbin is grabbed and put down. The herringbone connecting rod mechanism is simple and reliable, but the movement law of the herringbone connecting rod mechanism requires that the spinning position of the bobbin and the storing and withdrawing position of the bobbin on the bobbin base at the lower part are required to be on a vertical straight line.
Due to the structure and space limitation of the spinning machine, the bobbin conveying track under the colony moves circularly to load and unload the bobbins, and the direction of the conveying track is parallel to the head and tail direction of the spinning machine and is vertical to the wall plate of the spinning machine. In the old spinning frame designed in the past, in order to pursue the stability of the machine, the supporting leg below the wall plate is designed to be wider, as shown in figure 1, which can not satisfy the condition that the spinning position of the collective doffing bobbin and the access position of the bobbin on the lower bobbin seat are on a vertical straight line.
In order to solve the above problems, the prior art has the following technical solutions: 1. and after the machine is stopped, the old wallboard is detached, and then the wallboard of the spinning frame is replaced, so that the supporting legs of the wallboard retract. The disadvantages are as follows: the cost of replacing the wall plate is high, the dismounting cost and time of the spinning frame are increased, the precision needs to be adjusted when the spinning frame is mounted, the consumed time is long, and the normal production is delayed. 2. The added mechanism moves the bobbin outwards when doffing, such as patents CN105755601A, CN212640721U, CN216864430U and the like, and has the defects that: the mechanism is multiple, the reliability is poor, and the modification cost is high. 3. Tilting down-tracks or tilting tube holders are used, as in patent CN209584453U. The disadvantages are that: the doffing mechanism of the spinning frame has poor reliability and high maintenance cost.
Disclosure of Invention
The invention aims to solve the technical problems of high modification cost and poor mechanism reliability in the prior art.
The technical scheme for realizing the aim of the invention is a collective doffing reconstruction method of a spinning frame, which comprises the following steps:
the outer side of the spinning frame is provided with an integrated doffing device; the collective doffing device comprises a colony air frame positioned outside the spindle, a colony tube gripper driven by the colony air frame, a bobbin seat and a bobbin conveying track positioned at the lower part of the spindle, and a bobbin;
the bobbin conveying rail is arranged behind the outer side of the wallboard supporting leg by cutting the outer side part of the wallboard supporting leg of the spinning frame wallboard, so that the falling pipe gripper can grip out and put in the bobbin at the spindle and the bobbin seat in the vertical direction.
Further, the outer side part of the wallboard supporting leg of the wallboard of the spinning frame is cut, so that the bobbin conveying track is installed on the outer side of the wallboard supporting leg, and the central axes of the bobbin seat, the bobbin and the colony tube gripper are ensured to be on the same vertical line.
Further, in the process of cutting the outer part of the wallboard supporting leg of the spinning frame wallboard:
the width of the cut out wall panel support leg section is X;
the X satisfies: a is more than or equal to X and less than b; wherein a is the width of an outer vertical rib of the wallboard supporting leg; and b is the distance from the outer edge of the wallboard supporting leg to the surface of the screw hole of the wallboard supporting leg, which is close to the outer edge of the wallboard supporting leg.
Further, the method also comprises the following steps:
arranging a keel component; the keel assembly comprises a keel body, a keel bracket and a cushion block; the keel body is used for installing a spindle; the keel bracket is connected with the wallboard; the cushion block is arranged between the keel body and the keel bracket and used for moving the keel body to the outer side of the wallboard.
Further, the thickness of the cushion block is Y;
the Y satisfies: the center distance D2= D1+2Y = D3+2 (c + D) of the spindles on two sides of the spinning frame after the keel body moves towards the outer side of the wall plate;
d1 is the center distance of the spindles on the two sides of the improved front spinning frame; d3, the distance between the outer edges of the supporting legs of the two side wall plates after being cut by the spinning frame is obtained; c is the distance between the central axis of the bobbin seat and the side face of the bobbin conveying track, which is closest to the spinning frame; d is the minimum distance between the bobbin conveying track and the wallboard supporting leg, and d is more than or equal to 0.
Further, the method also comprises the following steps:
lowering the keel assembly; the height of the descent is H;
the H satisfies: the spinning angle of the spinning frame after the spinning frame is reformed by the collective doffing reforming method according to claim 4 is the same as the spinning angle before the spinning frame is reformed.
Further, during cutting of the outer side part of the wallboard supporting leg of the spinning frame wallboard, a cutting machine is adopted for on-site cutting.
Further, the cutting machine is a saw band cutting machine.
By adopting the technical scheme, the invention has the positive effects that: (1) The colony tube grabbing device can grab out and put in the bobbin at the spindle and the bobbin seat in the vertical direction by cutting the supporting legs of the wall plate, so that a new mechanism is not required to be added, the stability is high, the construction period is short, and the cost is obviously reduced.
(2) The central axes of the bobbin seat, the bobbin and the tube dropping and grabbing device are controlled to be on the same vertical line, so that the movement of the integrated doffing device is more accurate, and the spinning efficiency and the spinning quality are higher.
(3) The width of the support leg part of the wallboard cut by the invention is not less than the width of the outer vertical rib of the support leg of the wallboard and not more than the distance from the outer edge of the support leg of the wallboard to the surface of the screw hole of the support leg of the wallboard, which is close to the outer edge of the support leg of the wallboard, and the cutting mode ensures that only the side rib and the bottom rib need to be cut off without cutting the outer vertical rib of the support leg, so that the cutting amount is small, the cutting efficiency is high, and the requirements on the material, cutting sharpness and power of a cutting tool are low; on the other hand, can keep the screw, still can keep the double-screw bolt of fixed wallboard like this, need not to take off the double-screw bolt and tap the installation double-screw bolt in addition, the transformation is convenient, and is with low costs, has ensured the firm degree of the spinning frame after the transformation moreover.
(4) The spindle mounting device moves the spindle mounting keel to the outside of the spinning frame through the cushion block, so that the spindle is moved outwards to meet the requirements of grabbing out and putting in bobbins when the requirement cannot be met after the cutting part of the wallboard supporting leg is cut.
(5) The thickness of the cushion block can meet the requirement of ensuring that the central axes of the bobbin seat, the bobbin and the falling pipe gripper are on the same vertical line and the size of cutting is matched, and the scheme of the invention can meet the requirement of collective doffing reconstruction of various old spinning frames.
(6) After the keel is moved outwards, the spinning angle can be changed, so that the normal high-precision operation of a spinning frame can be influenced.
(7) The cutting of the invention adopts a field cutting mode, the spinning frame is not required to be disassembled and assembled, the normal operation of the spinning frame is ensured to the maximum extent, and the cost is lowest.
(8) The saw band cutting machine has the advantages of high cutting efficiency, easiness in control and low cost.
Drawings
In order that the manner in which the above recited features of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to embodiments, some of which are illustrated in the appended drawings
FIG. 1 is a schematic side view of a spinning frame before modification.
Figure 2 is a schematic representation of the retrofitting of wallboard in accordance with the present invention.
FIG. 3 is a schematic side view of a spinning frame modified by the present invention.
FIG. 4 is a schematic diagram showing the side view comparison of a spinning frame before and after the transformation of the present invention.
The reference numbers in the figures are:
the wall plate comprises a wall plate 100, wall plate supporting legs 110, outer vertical ribs 111 and screw holes 112;
a keel assembly 200, a keel body 210, a keel bracket 220, a cushion block 230;
a spindle 300;
the integrated doffing device 400, the colony air frame 410, the colony pipe gripper 420, the bobbin 430, the bobbin seat 440 and the bobbin conveying track 450;
a yarn guide hook component 500, a drafting roller 510, a front roller 520, a yarn guide hook 530, a roller seat 540 and a machine beam 550.
Detailed Description
(example 1)
The embodiment of the invention provides a collective doffing transformation method for a spinning frame, which is used for solving the technical problems of high transformation cost and poor mechanism reliability in the prior art and achieving the technical effects of no need of adding a new mechanism, high stability, short construction period and obvious cost reduction.
The technical scheme provided by the invention has the following general idea:
an integrated doffing reconstruction method of a spinning frame comprises the following steps:
the collective doffing device 400 is arranged on the outer side of the spinning machine; the collective doffing device 400 includes a colony air frame 410 located outside the spindle 300, colony tube grippers 420 driven by the colony air frame 410, bobbin seats 440 and bobbin conveying rails 450 located at a lower portion of the spindle 300, and bobbins 430; by cutting the outer part of the wall plate supporting leg 110 of the spinning frame wall plate 100, the bobbin conveying track 450 is mounted on the outer side of the wall plate supporting leg 110, so that the colony grabber 420 can grab out and put the bobbin 430 at the spindle 300 and the bobbin seat 440 in the vertical direction.
The embodiment of the invention adopts a mode of processing (cutting) the wall plate of the spinning frame, and reduces the cost for replacing the wall plate and the labor cost and time for disassembling and assembling the spinning frame compared with the scheme for replacing the wall plate; compared with the scheme of adding other additional mechanisms to enable the lower bobbin rail to move outwards, the mechanism is reduced, the reliability is improved, parts for collective doffing transformation are universal, and the cost for adding the mechanism is reduced for users; compared with the inclined type lower track or the inclined type tube seat, the device has better reliability of equipment operation.
The technical solutions of the present invention are described in detail below with reference to the drawings and specific embodiments, and it should be understood that the specific features in the embodiments and examples of the present invention are described in detail in the technical solutions of the present application, and are not limited to the technical solutions of the present application, and the technical features in the embodiments and examples of the present application may be combined with each other without conflict.
It should be noted that: in the invention, the opposite surfaces of two supporting legs of the wall plate are taken as inner sides, and the supporting legs face to the collective body
One side of the doffing device is the outer side. On the spinning machine, the two sides of the wall plate are symmetrical, and the wall plate is used in all the embodiments of the invention
One side illustrates that the actual collective doffing modification of the spinning frame should be set the same on both sides of the spinning frame.
The term "and/or" herein is merely an association relationship describing an associated object, and means that there may be three relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
Referring to fig. 2 to 4, the collective doffing modification method for the spinning frame of the embodiment includes:
the collective doffing device 400 is arranged on the outer side of the spinning machine; the collective doffing apparatus 400 includes a colony air frame 410 located outside the spindle 300, a colony tube gripper 420 driven by the colony air frame 410, a bobbin base 440 and a bobbin transfer rail 450 located at a lower portion of the spindle 300, and a bobbin 430. As shown in fig. 1 and 3, a yarn guide hook assembly 500, a drafting roller 510, a front roller 520, a yarn guide hook 530, a roller holder 540 and a machine beam 550 are also shown. The mechanisms are symmetrically arranged on two sides of the spinning frame. The bobbin base 440 is provided with columns twice as many as the bobbins 430. On each side, the bobbins 430 are provided in two sets, and in fig. 3, it can be seen that the bobbins 430 are drawn on the spindles 300, and the bobbins 430 located above are inserted on the spindles 300 substantially in a normal state and in an operating state, and after the full yarn is spun thereon, the colony air frames 410 are used to drive the colony grippers 420 to pull them up from the spindles 300, and then put them on the empty columns of the bobbin holders 440 located below (the bobbin holders 440 are provided with columns twice the number of the bobbins 430, the empty bobbins 430 without yarn are placed on the spaced columns, and the bobbins 430 with full yarn caught are placed next to each empty bobbin 430 without yarn), and the conveyor belt is moved forward by half a pitch (a half distance between the spindles) to catch the empty bobbins 430 without yarn, and then the bobbins 430 are inserted on the spindles 300 after being driven up by the colony air frames 410.
After the bobbin conveying rail 450 is installed on the outer side of the wallboard supporting leg 110 by cutting the outer part of the wallboard supporting leg 110 of the spinning frame wallboard 100, the colony grabber 420 can be ensured to grab and put the bobbin 430 at the spindle 300 and the bobbin seat 440 in the vertical direction.
Preferably, the central axes of the bobbin holder 440, the bobbin 430 and the landing grabber 420 are aligned on the same vertical line and coincide with the central axis of the spindle 300. In practice, however, a difference of 2-3mm is also permissible and does not affect the normal operation of the collective doffing device 400.
With particular reference to fig. 2, by cutting the outer part of the wall support leg 110 of the spinning frame wall 100:
the width of the cut wall panel support leg 110 portion is X;
the X satisfies: a is more than or equal to X and less than b; wherein a is the width of the outer vertical rib 111 of the wallboard support leg 110; b is the distance from the outer edge of the wallboard support leg 110 to the face of the screw hole 112 of the wallboard support leg 110 near the outer edge of the wallboard support leg 110.
According to the sizes of various old spinning machines existing on the market and a lot of experiments of the applicant, the size X is between 15.5mm and 24.5mm, the optimal size range is between 17.5mm and 21.5mm, the optimal spacing size of the two side wall board legs after processing in the section of the spinning machine is between 664mm and 668mm. Therefore, the improved spinning frame can meet the improvement requirement, is convenient to cut, and can ensure the stability of the cut spinning frame.
In order that the cutting amount does not affect the stability of the spinning machine and the cutting amount is limited by the size of some types of spinning machines, so that the purpose of the invention cannot be met after cutting, the spindle rail is further moved to the outside of the spinning machine. Arranging a keel assembly 200; the keel assembly 200 comprises a keel body 210, a keel bracket 220 and a cushion block 230; the keel body 210 is used for installing the spindle 300; the keel brackets 220 are connected to the wall panel 100; the pad 230 is disposed between the keel body 210 and the keel bracket 220, and is used for moving the keel body 210 to the outside of the wall board 100. The thickness of the cushion block 230 is Y; the Y satisfies: the center distance D2= D1+2y = D3+ D + 3+ of the spindles 300 on both sides of the spinning frame after the keel body 210 is moved to the outside of the wall board 100; wherein D1 is the center distance of the spindles 300 on two sides of the improved front spinning frame; d3 is the distance between the outer edges of the supporting legs 110 of the two side wall plates cut by the spinning machine; c is the distance between the central axis of the bobbin seat 440 and the side of the bobbin conveying track 450 closest to the spinning frame; d is the minimum distance between the bobbin conveying track 450 and the wallboard support leg 110, and d is greater than or equal to 0. For the most ideal state, d is 0, but because the state of the wall panel during installation also has installation errors, and the positioning deviation of the cutting machine during field cutting causes that the widths of dozens of wall panels of one spinning machine after cutting are probably slightly different, gaps are properly left, and the dimension for preventing individual out-of-tolerance (mainly small cutting amount) can also reach the assembly requirement (mainly ensuring the center distance of the spindle). According to the sizes of various old spinning machines existing on the market and a lot of experiments carried out by the applicant, the thickness Y is between 16mm and 25mm, the optimal size range is between 18mm and 22mm, namely the optimal size of the space between the spindles on two sides in the section of the spinning machine is 718mm to 722mm.
As the keel moves outward, the spinning angle changes, and thus the keel assembly 200 is lowered; the height of the descent is H; the H satisfies: the spinning angle of the spinning frame after the spinning frame is reformed by the collective doffing reforming method according to claim 4 is the same as the spinning angle before the spinning frame is reformed.
In order to achieve the transformation effect with the lowest cost and the best effect, the embodiment of the invention adopts the cutting machine to carry out on-site cutting. The cutting machine is a saw belt cutting machine, can be placed at the bottom of the spinning machine, directly cuts the wallboard supporting leg, does not need to be disassembled from the spinning machine, has higher cutting efficiency, and does not need to be installed and debugged again after being cut.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. An integral doffing reconstruction method of a spinning frame is characterized by comprising the following steps:
an integrated doffing device (400) is arranged at the outer side of the spinning machine; the collective doffing device (400) comprises a colony air frame (410) positioned outside the spindle (300), a colony tube gripper (420) driven by the colony air frame (410), a bobbin seat (440) and a bobbin conveying track (450) positioned at the lower part of the spindle (300), and a bobbin (430);
by cutting the outer part of the wallboard supporting leg (110) of the spinning frame wallboard (100), the bobbin conveying track (450) is installed behind the outer side of the wallboard supporting leg (110), so that the colony tube grabber (420) can be grabbed out of and put into the bobbin (430) at the spindle (300) and the bobbin seat (440) in the vertical direction.
2. The collective doffing modification method of the spinning frame according to claim 1, characterized in that:
the bobbin conveying rail (450) is installed behind the outer side of the wallboard supporting leg (110) by cutting the outer side part of the wallboard supporting leg (110) of the spinning frame wallboard (100), so that the central axes of the bobbin seat (440), the bobbin (430) and the drop tube gripper (420) are ensured to be on the same vertical line.
3. The collective doffing modification method of the spinning frame according to claim 1, characterized in that: the method comprises the following steps of cutting the outer part of a wallboard support leg (110) of the spinning frame wallboard (100):
the width of the cut wall panel support leg (110) part is X;
the X satisfies: a is more than or equal to X and less than b; wherein a is the width of an outer vertical rib (111) of the wallboard support leg (110); b is the distance from the outer edge of the wallboard support leg (110) to the face of the screw hole (112) of the wallboard support leg (110) near the outer edge of the wallboard support leg (110).
4. The collective doffing modification method of a spinning frame according to claim 3, further comprising:
arranging a keel assembly (200); the keel assembly (200) comprises a keel body (210), a keel bracket (220) and a cushion block (230); the keel body (210) is used for installing and arranging a spindle (300); the keel bracket (220) is connected with the wallboard (100); the cushion block (230) is arranged between the keel body (210) and the keel bracket (220) and used for moving the keel body (210) to the outer side of the wallboard (100).
5. The collective doffing modification method of the spinning frame according to claim 4, characterized in that:
the thickness of the cushion block (230) is Y;
the Y satisfies: the center distance D2= D1+2Y = D3+2 (c + D) of the spindles (300) on two sides of the spinning frame after the keel body (210) moves towards the outer side of the wall plate (100);
d1 is the center distance of the spindles (300) on two sides of the improved front spinning frame; d3 is the distance between the outer edges of the supporting legs (110) of the two side wall plates cut by the spinning machine; c is the distance between the central axis of the bobbin seat (440) and the side surface of the bobbin conveying track (450) closest to the spinning frame; d is the minimum distance between the bobbin conveying track (450) and the wallboard supporting leg (110), and d is more than or equal to 0.
6. The collective doffing modification method of a spinning frame according to claim 5, further comprising:
lowering the keel assembly (200); the height of the descent is H;
the H satisfies: the spinning angle of the spinning frame after the spinning frame is reformed by the collective doffing reforming method according to claim 5 is the same as the spinning angle before the spinning frame is reformed.
7. The collective doffing reconstruction method of a spinning frame according to one of claims 1 to 6, characterized in that: during cutting of the outer side part of the wallboard support leg (110) of the spinning frame wallboard (100), a cutting machine is adopted for on-site cutting.
8. The collective doffing modification method of the spinning frame according to claim 7, characterized in that: the cutting machine is a saw band cutting machine.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2022110450502 | 2022-08-30 | ||
| CN202211045050 | 2022-08-30 |
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| CN115198407A true CN115198407A (en) | 2022-10-18 |
| CN115198407B CN115198407B (en) | 2024-03-08 |
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| CN108689232A (en) * | 2018-06-15 | 2018-10-23 | 浙江宇昌纺织科技有限公司 | A kind of automatic disconnecting device of winding machine |
| EP3633087A1 (en) * | 2018-10-04 | 2020-04-08 | Kabushiki Kaisha Toyota Jidoshokki | Bobbin replacement device for pot spinning machine |
| CN209383188U (en) * | 2018-11-27 | 2019-09-13 | 浙江自力机械有限公司 | A kind of suction line rotating device |
| CN211814764U (en) * | 2020-01-09 | 2020-10-30 | 陕西华燕航空仪表有限公司 | Bottom yarn beating device of spinning machine |
| CN212247307U (en) * | 2020-05-13 | 2020-12-29 | 常州市集创自动化科技有限公司 | Integral doffing movable pipe gripper |
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| CN115198407B (en) | 2024-03-08 |
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