CN217438374U - Intelligent cotton roll steering and conveying device - Google Patents
Intelligent cotton roll steering and conveying device Download PDFInfo
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- CN217438374U CN217438374U CN202123074176.6U CN202123074176U CN217438374U CN 217438374 U CN217438374 U CN 217438374U CN 202123074176 U CN202123074176 U CN 202123074176U CN 217438374 U CN217438374 U CN 217438374U
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- dustpan
- lap
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- turning
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Abstract
The utility model discloses an intelligent cotton roll steering and conveying device, which comprises a frame structure, a roll combining piece, a support plate combining piece, a roll driving device and a rotary driving device, wherein one end of the support plate combining piece can be rotationally arranged on the frame structure around a horizontal rotating shaft extending in the horizontal direction, the roll combining piece can be rotationally arranged on the other end of the support plate combining piece around a vertical rotating shaft extending in the vertical direction, a dustpan-shaped structure is formed on the roll combining piece, an opening of the dustpan-shaped structure can be just opposite to and connected with a cotton outlet channel of a strip doubling machine and a conveying initiating end of an intelligent material conveying system, the roll driving device drives the support plate combining piece to rotate so as to enable the bottom surface of the dustpan-shaped structure of the roll combining piece to incline, the rotary driving device drives the roll combining piece to rotate to change the opening direction of the dustpan-shaped structure, the intelligent material conveying system is intelligently butted with the strip doubling machine and the combing machine, the continuous interactive use of the materials between the sliver lap machine and the combing machine is met.
Description
Technical Field
The utility model relates to a lap conveyor of spinning in-process, in particular to intelligence lap turns to conveyor.
Background
The intelligent material conveying system is used for conveying the cotton rolls produced by the sliver lap machine to a waiting position corresponding to the combing machine according to a specific rule and a specific production rhythm, and conveying bobbins discharged by the combing machine to the sliver lap machine so as to realize intelligent connection of material operation of the sliver lap machine and the combing machine. If the cotton lap is limited by places and arrangement, when the head of the sliver lap winder and the operation front face of the combing machine face to the same direction, the cotton lap produced by the sliver lap winder is conveyed to the combing machine through the intelligent material conveying system and cannot meet the requirement (the directions are just opposite) of the combing machine on the unwinding direction of the cotton lap, so the intelligent material conveying system cannot directly butt joint the two devices, and conveying difficulty is caused for the intelligent material conveying system of the cotton lap.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects, the utility model provides an intelligence lap turns to conveyor, this intelligence lap turns to conveyor and has realized the normal butt joint of intelligent material conveying system with the sliver lap machine and comber, has satisfied the continuous mutual user demand of material between sliver lap machine and comber.
The utility model discloses a solve the technical scheme that its technical problem adopted and be: the intelligent cotton roll turning and conveying device comprises a frame structure, a turning combined piece, a support plate combined piece, a turning driving device and a rotating driving device, wherein one end of the support plate combined piece can be rotatably arranged on the frame structure around a horizontal rotating shaft extending in the horizontal direction, the turning combined piece can be rotatably arranged on the other end of the support plate combined piece around a vertical rotating shaft extending in the vertical direction, a dustpan-shaped structure is formed on the turning combined piece, an opening of the dustpan-shaped structure can be in direct connection with a cotton outlet channel of a strip doubling machine and a conveying starting end of an intelligent material conveying system, the turning driving device drives the support plate combined piece to rotate so that the bottom surface of the dustpan-shaped structure of the turning combined piece is inclined, and the rotating driving device drives the turning combined piece to rotate to change the opening direction of the dustpan-shaped structure.
As the utility model discloses a further improvement, still be equipped with directly over intelligent material conveying system's the transport initiating terminal along the vertical deflector that perpendicular intelligent material conveying system direction of delivery extends, vertical deflector just can align with a dustpan form export lateral wall of the roll-over binder and link up, and the lap that rolls out from the dustpan form export of the roll-over binder just can roll into intelligent material conveying system's transport initiating terminal in pasting vertical deflector.
As the utility model discloses a further improvement still fixes being equipped with the horizontally on the intelligent material conveying system lateral wall and crosses the cab apron, crosses cab apron both ends and aligns with the dustpan form export bottom surface of rolling up the conjunction and intelligent material conveying system's transport initiating terminal respectively and links up, crosses cab apron and vertical deflector and forms jointly and supply the rolling direction passageway of lap.
As a further improvement of the utility model, still be equipped with connecting plate conjunction and connecting plate, connecting plate conjunction and strip ribbon lap machine fixed connection, the both ends of connecting plate respectively with connecting plate conjunction and frame construction fixed connection.
As a further improvement, the connecting plate conjunction is last still the spaced two baffles that are equipped with, and two baffles form a feedstock channel with the connecting plate conjunction jointly, feedstock channel one end is just to the intercommunication with the lap winder cotton outlet, and the feedstock channel other end can be just to the intercommunication with the dustpan column structure opening of the roll-over conjunction.
As the utility model discloses a further improvement, the distance between two baffles can be adjusted install on the connecting plate conjunction, and the feed channel who forms between two baffles is the V-arrangement passageway that upper end opening width is greater than the bottom surface width.
As a further improvement of the utility model, still be equipped with first induction system, second induction system, third induction system, fourth induction system and control system, first induction system can respond to the opening of the dustpan column structure orientation strip ribbon lap machine direction of turning over the roll binder, second induction system can respond to the opening of the dustpan column structure orientation intelligent material conveying system direction of turning over the roll binder, the backup pad binder other end of lower limit position department can be reachd in the response of third induction system, the backup pad binder other end of upper limit position department can be reachd in the response of fourth induction system, first induction system, second induction system, third induction system, fourth induction system communicate with control system electric connection respectively, control system control upset drive arrangement and rotary drive device open and stop the action.
As the utility model discloses a further improvement, the last spaced of frame construction is equipped with two locating pieces, and on horizontal rotating shaft both ends were fixed respectively and were located two locating pieces, the horizontal rotating shaft outside was located to the cover that backup pad connector one end can rotate, and upset drive arrangement is the cylinder, on the frame construction was located in the cylinder body of cylinder articulated, the piston rod of cylinder linked to each other with the backup pad connector other end is articulated.
As a further improvement of the utility model, the supporting plate conjunction can rotate 4 degrees to 6 degrees around the horizontal rotating shaft.
As a further improvement of the utility model, the rotary driving device is a motor reducer, and motor reducer fixed mounting is on backup pad conjunction other end, and motor reducer's power output shaft links firmly with the upset conjunction.
The utility model has the advantages that: the utility model discloses install between strip ribbon lap machine and intelligent material conveying system, realize holding with holding the receipt of lap through the dustpan column structure on the combination piece of turning over, rotate around vertical axle through the combination piece of turning over, realize that the opening of its dustpan column structure is towards the cotton outlet of strip ribbon lap machine or towards intelligent material conveying system's feed inlet, the backup pad combination piece keeps horizontal state or tilt state through turning over dustpan column structure on the combination piece around horizontal rotating shaft rotation realization turning over, and then realizes the support of lap and hold and go on in turn of toppling over the state, the utility model discloses a in the lap automatic steering back that comes out on the strip ribbon lap machine sent into intelligent material conveying system, realized intelligent material conveying system and strip ribbon lap machine and comber intelligence butt joint, satisfied the continuous interaction use of material between strip ribbon lap machine and comber.
Drawings
FIG. 1 is a schematic view of the usage state of the present invention;
FIG. 2 is a view showing the state of the feed of the cotton rolls of the present invention;
FIG. 3 is a view showing the state of the cotton roll discharge of the present invention;
FIG. 4 is a view of the ready-to-turn state of the lap of the present invention;
fig. 5 is a diagram showing a state of the present invention in which the cotton roll is ready to be released.
Detailed Description
The embodiment is as follows: an intelligent cotton roll steering conveying device comprises a frame structure 1, a roll-turning connector 2, a support plate connector 10, a roll-turning driving device and a rotary driving device, wherein one end of the support plate connector 10 can be rotatably arranged on the frame structure 1 around a horizontal rotating shaft 3 extending in the horizontal direction, the roll-turning connector 2 can be rotatably arranged on the other end of the support plate connector 10 around a vertical rotating shaft extending in the vertical direction, a dustpan-shaped structure is formed on the roll-turning connector 2, an opening of the dustpan-shaped structure can be in direct connection with a cotton outlet channel of a strip ribbon lap winder 12 and a conveying starting end of an intelligent material conveying system 14, the roll-turning driving device drives the support plate connector 10 to rotate so as to enable the bottom surface of the dustpan-shaped structure of the roll-turning connector 2 to incline, and the rotary driving device drives the roll-turning connector 2 to rotate so as to change the opening direction of the dustpan-shaped structure. After the cotton roll 13 is discharged from the cotton outlet channel of the strip lap winder 12, the cotton roll enters through the opening of the dustpan-shaped structure on the turning binder 2, the cotton roll is kept in a stable holding state in the inner cavity of the dustpan-shaped structure on the turning binder 2, after the turning binder 2 rotates around the vertical rotating shaft for a set angle, the opening of the dustpan-shaped structure on the turning binder 2 is just opposite to the conveying starting end of the intelligent material conveying system 14, the support plate binder 10 rotates around the horizontal rotating shaft 3 for a certain angle, so that the dustpan-shaped structure on the turning binder 2 is turned and inclined, the opening of the dustpan-shaped structure on the turning binder 2 descends, the cotton roll rolls out from the inner cavity of the dustpan-shaped structure on the turning binder 2 and finally falls onto the conveying starting end of the intelligent material conveying system 14, the intelligent material conveying system 14 conveys the cotton roll, and then the support plate 10 reversely rotates around the horizontal rotating shaft 3 for a certain angle to reset, the lap-turning connector 2 rotates reversely around the vertical rotating shaft to reset at a set angle to wait for the turning conveying of the next lap, and the lap produced by the sliver lap winder 12 is conveyed to the comber through the intelligent material conveying system 14 by the lap-turning connector to meet the direction requirement of the comber on the lap unwinding, so that the lap can be butted with the sliver lap winder 12 and the comber through the intelligent material conveying system 14.
A vertical guide plate 7 extending in a direction perpendicular to the conveying direction of the intelligent material conveying system 14 is further arranged right above the conveying starting end of the intelligent material conveying system 14, the vertical guide plate 7 can be aligned and connected with one side wall of a dustpan-shaped outlet of the turning combining member 2, and a cotton roll rolled out from the dustpan-shaped outlet of the turning combining member 2 can be rolled into the conveying starting end of the intelligent material conveying system 14 along with the vertical guide plate 7.
In actual operation, the rotation of the cotton rolls is not exactly 180 degrees, the side edges of the cotton rolls can slightly incline towards the guide plate side by slightly being slightly less than 180 degrees, one side of the cotton rolls is attached to the guide plate 7 after the cotton rolls come out, the cotton rolls coming out at each time are ensured to be at the determined positions, so that the specific requirements of material conveying on the distance between the cotton rolls are facilitated, a brake plate is optimally arranged at the conveying starting end of the intelligent material conveying system 14, and the brake plate can prevent the cotton rolls at the conveying starting end of the intelligent material conveying system 14 from rushing out of the material conveying belt.
The side wall of the intelligent material conveying system 14 is also fixedly provided with a horizontal transition plate 6, two ends of the transition plate 6 are respectively aligned and connected with the bottom surface of the dustpan-shaped outlet of the turning combination part 2 and the conveying starting end of the intelligent material conveying system 14, and the transition plate 6 and the vertical guide plate 7 form a guide channel for the lap to roll. The transition plate 6 and the guide plate are optimally and adjustably fixedly connected with the intelligent material conveying system 14, the guide plate is opposite to the dustpan-shaped outlet side wall of the turning combination part 2 by adjusting the installation position, when the cotton rolls enter the inner cavity of the dustpan-shaped structure of the turning connector 2 from the strip ribbon lap machine 12, the rotation driving device drives the turning connector 2 to rotate 180 degrees so that the opening of the turning connector 2 is just opposite to the other end of the guide channel, at the moment, the turning driving device drives the support plate connector 10 to rotate clockwise around the horizontal rotating shaft 3, the turning connector 2 arranged on the turning driver synchronously turns, the cotton rolls out of the inner cavity of the dustpan-shaped structure of the turning connector 2 and finally rolls into the conveying starting end of the intelligent material conveying system 14 after passing through the guide channel formed by the transition plate 6 and the guide plate, and the turning and conveying connection of the cotton rolls from the strip ribbon lap machine 12 to the intelligent material system is completed.
And the frame structure is also provided with a connecting plate 17 binder 8 and a connecting plate 17, wherein the connecting plate 17 binder 8 is fixedly connected with the strip ribbon lapper 12, and two ends of the connecting plate 17 are respectively fixedly connected with the connecting plate 17 binder 8 and the frame structure 1.
The connecting plate 17 combining piece 8 is further provided with two baffle plates 9 at intervals, the two baffle plates 9 and the connecting plate 17 combining piece 8 form a feeding channel together, one end of the feeding channel is just communicated with a cotton outlet of the strip ribbon lap machine 12, and the other end of the feeding channel can be just communicated with a dustpan-shaped structure opening of the turning combining piece 2. The cotton rolls are delivered from the strip ribbon lap machine 12 and then smoothly enter the inner cavity of the dustpan-shaped structure of the turning combining piece 2 between the baffles 9, and the cotton rolls discharged from the discharge port of the strip ribbon lap machine 12 are guided.
The distance between the two baffles 9 can be adjusted and is arranged on the connecting plate 17 combining piece 8, and a feeding channel formed between the two baffles 9 is a V-shaped channel with the upper end opening width larger than the bottom surface width. In an initial state, the opening of the turning connector 2 is opposite to the V-shaped channel, the cotton roll pushed out by the strip ribbon lap machine 12 can accurately enter the inner cavity of the dustpan-shaped structure of the turning connector 2 through the V-shaped channel, and the V-shaped channel can play a role in guiding, so that the cotton roll is prevented from moving in the channel and interfering with the baffle plates 9 and cannot smoothly enter the space between the two baffle plates 9.
The automatic winding machine is further provided with a first sensing device 19, a second sensing device 21, a third sensing device 18, a fourth sensing device 20 and a control system, wherein the first sensing device 19 can sense an opening of a dustpan-shaped structure of the turning connector 2 facing the direction of the strip winder 12, the second sensing device 21 can sense an opening of the dustpan-shaped structure of the turning connector 2 facing the direction of the intelligent material conveying system 14, the third sensing device 18 can sense the other end of the support plate connector 10 reaching the lower limit position, the fourth sensing device 20 can sense the other end of the support plate connector 10 reaching the upper limit position, the first sensing device 19, the second sensing device 21, the third sensing device 18 and the fourth sensing device 20 are respectively in electric connection and communication with the control system, and the control system controls the turning driving device and the rotation driving device to start and stop. The third sensing device 18 and the fourth sensing device 20 are installed on the frame structure 1, the action condition of the turnover driving device is fed back by sensing the position of the other end of the support plate combining piece 10, the first sensing device 19 is installed on the connecting plate 17 combining piece 8, whether the opening of the turnover combining piece 2 faces the cotton roll outlet of the sliver lap winder 12 or not is sensed, the second sensing device 21 is installed on the transition plate 6, whether the opening of the turnover combining piece 2 faces the cotton roll inlet of the intelligent material conveying system 14 or not is sensed, and the turnover driving device and the rotary driving device are controlled by the control system to accurately act through the information obtained by the first sensing device, the second sensing device, the third sensing device and the fourth sensing device, so that the intelligent turning conveying of the cotton rolls is realized.
Two positioning blocks 4 are arranged on the frame structure 1 at intervals, two ends of a horizontal rotating shaft 3 are respectively and fixedly arranged on the two positioning blocks 4, one end of a support plate combining piece 10 is rotatably sleeved outside the horizontal rotating shaft 3, a turning driving device is an air cylinder 11, a cylinder body of the air cylinder 11 is hinged on the frame structure 1, and a piston rod of the air cylinder 11 is hinged and connected with the other end of the support plate combining piece 10. The frame structure 1 is optimally provided with an axle lug support 16, the end part of the cylinder body of the cylinder 11 is hinged to the axle lug support, the supporting plate combining piece 10 is driven to rotate around the horizontal reciprocating motion through the telescopic action of the piston rod of the cylinder 11, and then the bottom surface of the dustpan-shaped structure of the turning combining piece 2 is in a horizontal state and an inclined state, so that the cotton roll supporting and dumping actions are alternately carried out.
The supporting plate conjunction 10 can rotate 4 degrees to 6 degrees around the horizontal rotating shaft 3. The optimal rotation angle is 5 degrees, the lap rolls to fly out too fast easily due to too large inclination angle, the lap cannot roll out smoothly due to too small inclination angle, and the proper rotation angle is selected according to the actual specification of the lap.
The rotary driving device is a motor speed reducer 5, the motor speed reducer 5 is fixedly arranged at the other end of the support plate combining piece 10, and a power output shaft of the motor speed reducer 5 is fixedly connected with the turning combining piece 2. The rolling connector 2 can realize 180-direction turning under the driving of the power of the motor reducer 5, and the motor reducer 5 can also be replaced by a rotary cylinder 11.
The support plate combining part 10 comprises a connecting rod structure, a mounting plane and a hinged lug, one end of the connecting rod structure is rotatably sleeved outside the horizontal rotating shaft 3, the mounting plane for bearing and mounting the turning and rolling combining part 2 is fixedly mounted at the other end of the connecting rod structure, and the hinged lug connected with the moving end of the turning and driving device is fixedly mounted on the mounting plane.
In the mechanism, the positions of the turning-over joint parts 2 reached under the driving of the cylinder and the motor reducer 5 are obtained by a photoelectric sensing device. When the vertical rotating shaft 10 and the air cylinder 11 are in the initial positions, the opening of the dustpan-shaped structure of the turning joint member 2 is over against the cotton outlet of the sliver lap winder, the third sensing device 18 arranged on the frame structure 1 and the first sensing device 19 arranged on the connecting plate joint member 8 respectively obtain relevant information, and the information is uploaded to a control system program to prepare for receiving the cotton lap 13. After the sliver lap former 12 discharges the cotton rolls 13 to the inner cavity of the dustpan-shaped structure of the lap-turning connector 2, the vertical rotating shaft rotates clockwise 180 degrees, at the moment, the opening of the lap-turning connector 2 is over against the cotton roll feeding port of the intelligent material conveying system 14, the second sensor 21 arranged on the transition plate 6 obtains relevant information, the system sends out an instruction to require the piston rod of the air cylinder 11 to be completely extended, the lap-turning connector 2 rotates clockwise 5 degrees around the horizontal rotating shaft 3, the cotton rolls 13 smoothly roll into the cotton roll feeding port of the intelligent material conveying system 14 along the guide channel formed by the transition plate 6 and the guide plate 7, the fourth sensing device 20 arranged on the frame structure 1 senses the position of the support plate connector 10, the system obtains that the turning conveying of one cotton roll 13 is completed, the vertical rotating shaft rotates anticlockwise 180 degrees, the piston rod of the air cylinder 11 returns to the initial state, and the turning conveying preparation work of the next cotton roll 13 is completed. The sliver lap machine 12 outputs one lap in about 2-3 minutes and can continuously perform, the intelligent lap steering and conveying mechanism is repeatedly performed according to production arrangement and control signals of the sliver lap machine 12, so that when the head of the sliver lap machine 12 faces the same direction as the operation of the combing machine, the lap produced by the sliver lap machine can be normally used after being conveyed to the combing machine through the intelligent lap steering and conveying mechanism and the intelligent material conveying system, and continuous exchange and use of materials between the sliver lap machine and the combing machine are realized.
Claims (10)
1. The utility model provides an intelligence lap turns to conveyor which characterized in that: the automatic cotton-rolling machine comprises a frame structure (1), a rolling connector (2), a support plate connector (10), a rolling driving device and a rotary driving device, wherein one end of the support plate connector can be rotatably arranged on the frame structure around a horizontal rotating shaft (3) extending in the horizontal direction, the rolling connector can be rotatably arranged on the other end of the support plate connector around a vertical rotating shaft extending in the vertical direction, a dustpan-shaped structure is formed on the rolling connector, an opening of the dustpan-shaped structure can be in direct connection with a cotton outlet channel of a strip doubling machine (12) and a conveying starting end of an intelligent material conveying system (14), the rolling driving device drives the support plate connector to rotate to enable the bottom surface of the dustpan-shaped structure of the rolling connector to incline, and the rotary driving device drives the rolling connector to rotate to change the opening direction of the dustpan-shaped structure.
2. The intelligent lap steering conveyor device of claim 1, wherein: and a vertical guide plate (7) extending along the direction vertical to the conveying direction of the intelligent material conveying system is arranged right above the conveying starting end of the intelligent material conveying system, the vertical guide plate can be aligned and connected with one side wall of the dustpan-shaped outlet of the turning combining member, and a cotton roll rolled out from the dustpan-shaped outlet of the turning combining member can be rolled into the conveying starting end of the intelligent material conveying system along with the vertical guide plate.
3. The intelligent lap steering conveyor device of claim 2, wherein: the side wall of the intelligent material conveying system is also fixedly provided with a horizontal transition plate (6), two ends of the transition plate are respectively aligned and connected with the bottom surface of the dustpan-shaped outlet of the scrolling combination member and the conveying starting end of the intelligent material conveying system, and the transition plate and the vertical guide plate jointly form a guide channel for the cotton rolls to roll.
4. The intelligent lap steering conveyor device of claim 1, wherein: and the device is also provided with a connecting plate binder (8) and a connecting plate (17), wherein the connecting plate binder is fixedly connected with the strip ribbon lap machine, and two ends of the connecting plate are respectively fixedly connected with the connecting plate binder and the frame structure.
5. The intelligent lap steering conveyor device of claim 4, wherein: the connecting plate connector is also provided with two baffle plates (9) at intervals, the two baffle plates and the connecting plate connector form a feeding channel together, one end of the feeding channel is just communicated with a cotton outlet of the strip lap winder, and the other end of the feeding channel can be just communicated with a dustpan-shaped structure opening of the turning connector.
6. The intelligent lap steering conveyor device of claim 5, wherein: the distance between the two baffles can be adjusted and is arranged on the connecting plate connector, and the feeding channel formed between the two baffles is a V-shaped channel with the upper end opening width larger than the bottom surface width.
7. The intelligent lap steering conveyor device of claim 1, wherein: the automatic winding machine is characterized by further comprising a first sensing device, a second sensing device, a third sensing device, a fourth sensing device and a control system, wherein the first sensing device can sense an opening of a dustpan-shaped structure of the turning binder towards the direction of the strip winder, the second sensing device can sense an opening of a dustpan-shaped structure of the turning binder towards the direction of the intelligent material conveying system, the third sensing device can sense the other end of the support plate binder reaching the lower limit position, the fourth sensing device can sense the other end of the support plate binder reaching the upper limit position, the first sensing device (19), the second sensing device (21), the third sensing device (18) and the fourth sensing device (20) are respectively in electric connection communication with the control system, and the control system controls the turning driving device and the rotation driving device to start and stop.
8. The intelligent lap steering conveyor device of claim 1, wherein: the frame structure is provided with two positioning blocks (4) at intervals, two ends of a horizontal rotating shaft are respectively and fixedly arranged on the two positioning blocks, one end of a support plate combining piece can be sleeved outside the horizontal rotating shaft in a rotating mode, a turning driving device is an air cylinder (11), a cylinder body of the air cylinder is hinged to the frame structure, and a piston rod of the air cylinder is hinged to the other end of the support plate combining piece.
9. The intelligent lap steering conveyor device of claim 1 or 7, wherein: the supporting plate combining piece can rotate 4-6 degrees around the horizontal rotating shaft.
10. The intelligent lap steering conveyor device of claim 1, wherein: the rotary driving device is a motor speed reducer (5), the motor speed reducer is fixedly arranged at the other end of the support plate combining piece, and a power output shaft of the motor speed reducer is fixedly connected with the turning combining piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123074176.6U CN217438374U (en) | 2021-12-08 | 2021-12-08 | Intelligent cotton roll steering and conveying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123074176.6U CN217438374U (en) | 2021-12-08 | 2021-12-08 | Intelligent cotton roll steering and conveying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217438374U true CN217438374U (en) | 2022-09-16 |
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ID=83210370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123074176.6U Active CN217438374U (en) | 2021-12-08 | 2021-12-08 | Intelligent cotton roll steering and conveying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217438374U (en) |
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2021
- 2021-12-08 CN CN202123074176.6U patent/CN217438374U/en active Active
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