CN211027577U - Lifting type pay-off rack - Google Patents
Lifting type pay-off rack Download PDFInfo
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- CN211027577U CN211027577U CN201921240429.2U CN201921240429U CN211027577U CN 211027577 U CN211027577 U CN 211027577U CN 201921240429 U CN201921240429 U CN 201921240429U CN 211027577 U CN211027577 U CN 211027577U
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- guide wheel
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Abstract
The application discloses lift-draw formula pay off rack belongs to wire rod production facility technical field. This pay off rack includes: paying off mechanism, buffer gear and support frame, paying off mechanism include first unwrapping wire guide pulley and second unwrapping wire guide pulley, buffer gear including install in first fixed pulley on the support frame, install buffering guide pulley, balancing weight, displacement sensor on a buffering guide pulley mount pad and connect the first lifting rope of buffering guide pulley mount pad and balancing weight. The lifting type pay-off rack can pull the knot open without excessively drawing the wire rod when the wire rod is slightly knotted due to disorder of the wire rod; when knotting is serious, the automatic stopping paying-off device can automatically stop paying off, prevents wires from being broken, avoids unnecessary wiring operation and improves production efficiency.
Description
Technical Field
The application relates to a lifting type pay-off rack, and belongs to the field of wire rod production equipment.
Background
In the wire processing, a plurality of processes such as paying-off, peeling, drawing, etc. are required. Most wire rod manufacturing enterprises use such as duckbilled formula pay off rack's unwrapping wire equipment is simple structure mostly when the unwrapping wire at present, and the wire rod is sent out from the pay off rack by traction motor during production, and when the wire rod appears knotting because of indiscriminate line, if can not in time stop traction motor, the wire rod can continue by traction motor pulling, leads to the wire rod to be forced to draw, causes the wire rod even to be broken. When the situation occurs, an operator has to stop the machine and rewire the machine, which takes longer time and reduces the production efficiency of the whole production line. Secondly, the traditional pay-off equipment has many friction points with pay-off rack and ground when using, not only produces considerable noise and vibrations, but also leads to wire rod surface wearing and tearing seriously, causes the influence to follow-up technology, leads to wire rod processingquality to reduce. And thirdly, when the traditional pay-off equipment is used, the wire rods are exposed in a workshop in a large area, the horizontal occupied area is large, the space is wasted, the personal safety of operators is threatened, and the safety coefficient is low.
The prior art provides a paying-off device which solves some of the above problems, but cannot completely solve the above technical problems. Therefore, it is necessary to design a new type of pay-off equipment to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the application provides a lift-draw formula pay off rack, and this lift-draw formula pay off rack can be when the wire rod is in disorder or tie a knot, adjusts through the buffering subassembly, prevents the broken string condition, has improved production efficiency and wire rod quality to the emergence of incident has been reduced.
The application provides a lift-draw formula pay off rack includes:
the pay-off mechanism comprises a first pay-off guide wheel and a second pay-off guide wheel;
a buffer mechanism;
the supporting frame is used for mounting a pay-off mechanism and a buffer mechanism;
the buffer mechanism includes:
the first fixed pulley is arranged on the supporting frame;
the buffer guide wheel is arranged on a buffer guide wheel mounting seat;
a balancing weight;
the displacement sensor is used for receiving displacement information of the balancing weight;
the buffer guide wheel mounting seat is connected with a first lifting rope, and the first lifting rope is connected with the balancing weight by winding around a first fixed pulley;
the wire rod sequentially bypasses the first paying-off guide wheel, the second paying-off guide wheel and the buffering guide wheel through the traction of an external traction motor; in addition, in the paying-off process, the buffer guide wheel mounting seat keeps stress balance under the action of wire tension and counterweight tension; and the displacement sensor is connected with a controller of the traction motor.
In the unwrapping wire in-process, when the wire rod appears knoing because of indiscriminate line, the wire rod can not be followed first unwrapping wire guide pulley and pulled out smoothly, and traction motor continues to stimulate the wire rod, so the buffering guide pulley mount pad can be whole downstream under the effect of wire rod pulling force, can drive the balancing weight rebound through first lifting rope simultaneously.
If the wire rod is slightly knotted, the knot can be pulled open in the pulling process, the buffer block is reset after rising to a small height, and the wire rod cannot be excessively pulled. When knotting is serious, the lifting height of the balancing weight is large, when the set response height of the displacement sensor is reached, the displacement sensor sends displacement information to the controller of the traction motor, and the controller can stop the operation of the traction motor to prevent the wire from being excessively drawn. And after the machine is stopped and the knotting problem is solved, the traction motor is restarted.
In one embodiment, the displacement sensor is mounted on a support frame.
Optionally, the paying-off mechanism further comprises a paying-off guide wheel mounting frame for mounting the first paying-off guide wheel, and the paying-off guide wheel mounting frame is driven by the lifting mechanism to lift.
Further, the lifting mechanism includes:
the second fixed pulley is arranged on the supporting frame;
a retracting mechanism; and the paying-off guide wheel mounting frame is connected with a second lifting rope, and the second lifting rope is connected with the take-up and drawing mechanism after winding around a second fixed pulley.
Still further, the retracting mechanism includes:
a reel for winding a second hoist rope;
and the winding drum is driven to rotate by the winding motor.
The problem of knoing appears in the inlet wire of first unwrapping wire guide pulley, when elevating system drive first unwrapping wire guide pulley down, the operating personnel of being convenient for operate and remove. In one embodiment, the wire inlet of the first wire releasing guide wheel is provided with a tapered structure with a thin upper part and a thick lower part, so that the wire is dredged to prevent knotting.
Optionally, the buffer mechanism further comprises a first guide mechanism for guiding the buffer guide wheel mounting seat to ascend and descend along the support frame.
Further, the first guide mechanism includes:
at least one roller group arranged on the buffer guide wheel mounting seat, wherein each roller group comprises two rollers;
the guide rail that sets up vertically, two gyro wheels that constitute every roller train are located respectively the left and right sides of guide rail, every gyro wheel and guide rail rolling contact.
Optionally, the paying-off mechanism further comprises a second guide mechanism for guiding the paying-off guide wheel mounting frame to ascend and descend along the supporting frame.
Further, the second guide mechanism includes:
at least one roller group arranged on the pay-off guide wheel mounting frame, wherein each roller group comprises two rollers;
the guide rail of vertical setting, two gyro wheels that constitute every roller train locate the left and right sides of guide rail respectively, and every gyro wheel and guide rail rolling contact.
In one embodiment, the payoff stand comprises two panels of vertical equipment, which panels constitute the guide rails.
First guiding mechanism and second guiding mechanism's setting can lead the lift of buffering guide pulley mount pad and first unwrapping wire guide pulley mounting bracket, prevents to appear rocking, makes buffering guide pulley mount pad and unwrapping wire guide pulley mounting bracket and support frame sliding contact moreover, reduces the friction.
Optionally, the lifting pay-off rack further comprises a steering guide wheel, a wheel shaft of the steering guide wheel and a wheel shaft of the second pay-off guide wheel are arranged in parallel, a wheel surface of the steering guide wheel is close to a wheel surface of the second pay-off guide wheel, and the second pay-off guide wheel and the steering guide wheel form a first shelling wheel set.
Optionally, the lifting pay-off rack further comprises a second husking wheel set and/or a straightening wheel set; an oxide skin discharge hole is formed below the second husking wheel set and the first husking wheel set; the second husking wheel set comprises a husking wheel set A and a husking wheel set B, the husking wheel set A and the husking wheel set B respectively comprise two husking wheels with wheel shafts arranged in parallel, the axes of the two husking wheels of the husking wheel set A determine a first plane, the axes of the two husking wheels of the husking wheel set B determine a second plane, the first plane and the second plane are parallel or approximately parallel, and the wheel shaft included angle of the husking wheel set A and the husking wheel set B is 60-120 degrees.
Benefits that can be produced by the present application include, but are not limited to:
1. the pull-up pay-off rack provided by the application can be used for pulling the knot open under the condition of not excessively pulling the wire rod when the wire rod is slightly knotted due to disorder of the wire rod; when the knot is serious, the machine can automatically stop releasing the wire, so that the wire is prevented from being broken, unnecessary wire connection operation is avoided, and the production efficiency is improved; the wire rod vertically reciprocates the buffering, and the level area occupied is little, and is little to the operation interference in the workshop.
2. The application provides a lift-draw formula pay off rack, when the wire rod passes through paying off mechanism, buffer gear's unwrapping wire guide pulley, buffering introduction guide, fixed pulley, turns to the guide pulley, has passed through many times of diversion, does benefit to peeling of wire rod surface oxide skin or filth, and the wire rod is few with the friction point of pay off rack in addition, has improved the wire rod quality.
3. The application provides a lift-draw formula pay off rack, the lift of the control unwrapping wire guide pulley mounting bracket of being convenient for, the problem of knoing of contact wire rod, convenient operation.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic view of an overall structure of a pull-up pay-off stand according to an embodiment of the present application;
FIG. 2 is a schematic view of an overall structure of a pull-up pay-off stand according to another embodiment of the present application;
FIG. 3 is an enlarged view of portion A of FIG. 1;
FIG. 4 is an enlarged view of the portion B in FIG. 2;
fig. 5 is an enlarged schematic structural view of the second husking mechanism of the present invention.
List of parts and reference numerals:
1. the support frame, 4, traction motor, 5, turn to the guide pulley, 6, the second wheel group of shelling, 7, alignment wheelset, 8, the hopper, 9, the casing, 11, the roller train, 12, the guide rail, 21, first unwrapping wire guide pulley, 22, the second unwrapping wire guide pulley, 23, unwrapping wire guide pulley mounting bracket, 24, the second lifting rope, 25, the reel, 26, the coiling motor, 31, buffering guide pulley mount pad, 32, the buffering guide pulley, 33, first fixed pulley, 34, the balancing weight, 35, displacement sensor, 36, first lifting rope, 61, the wheel group A of shelling, 62, the wheel group B of shelling.
Detailed Description
In order to more clearly explain the overall concept of the present application, the following detailed description is given by way of example in conjunction with the accompanying drawings.
So that the manner in which the above recited objects, features and advantages of the present application can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.
Referring to fig. 1 and 3, the pull-up type pay-off stand of the present embodiment includes a support frame 1, and a pay-off structure and a buffer mechanism mounted on the support frame 1. The paying-off structure comprises a first paying-off guide wheel 21 and a second paying-off guide wheel 22, and the first paying-off guide wheel 21 is connected to the supporting frame 1 through a paying-off guide wheel mounting frame 23. Buffer gear includes buffering guide wheel mount pad 31, installs buffering guide wheel 32 on buffering guide wheel mount pad 31, installs first fixed pulley 33, balancing weight 34 and displacement sensor 35 on support frame 1, and first lifting rope 36 is connected to the one end of this buffering guide wheel mount pad 31, and first lifting rope 36 is walked around first fixed pulley 33 and is connected balancing weight 34, and displacement sensor 35 sets up on support frame 1, and displacement sensor 35 is used for receiving the displacement information of balancing weight 34.
In the paying-off process, the wire 1 sequentially bypasses the first paying-off guide wheel 21, the second paying-off guide wheel 22 and the buffering guide wheel 32 through the traction of the external traction motor 4. In the paying-off process, the buffering guide wheel mounting seat 31 keeps stress balance under the action of the tension of the wire and the tension of the balancing weight 34. The displacement sensor 35 is connected to the controller of the traction motor 4.
In the paying-off process, when the wire is knotted due to disorder, the buffering guide wheel mounting seat 31 provided with the buffering guide wheel 32 integrally moves downwards under the action of the tension of the wire, and meanwhile, the buffering guide wheel mounting seat 31 drives the balancing weight 34 to move upwards through the first lifting rope 36; if the wire is slightly knotted, the knot can be pulled open in the pulling process, the buffer block 34 is reset after rising to a small height, and the wire cannot be excessively pulled.
When knotting is serious, the lifting height of the balancing weight 34 is large, and when the balancing weight reaches a set corresponding height, the displacement sensor 35 sends the displacement information to the controller of the traction motor 4, and the controller can stop the traction motor 4 to prevent the wire from being excessively drawn. And after the knot is formed, restarting the traction motor 4.
Specifically, when the knotting phenomenon appears in the unwrapping wire in-process, the wire rod is piled up at the inlet wire of first unwrapping wire guide pulley 21, can not pull out smoothly from first unwrapping wire guide pulley 21, and traction motor 4 continues to stimulate the wire rod, so buffering guide pulley mount pad 31 can wholly remove downwards under the effect of wire rod pulling force, can drive balancing weight 34 rebound through first lifting rope 36 simultaneously. When the controller of the traction motor 4 receives that the ascending displacement of the counterweight block 34 is small, the traction motor 4 stops slowly; when the ascending displacement of the received balancing weight 34 is large, the traction motor 4 stops suddenly, and the wire is effectively prevented from being excessively drawn.
In the process, no matter the wire is knotted slightly or seriously, the process that the buffering guide wheel mounting seat 31 descends under the tension of the wire can buffer the stress of pulling the wire, and the tension is not directly acted on the wire when the knotting of the wire occurs by the traditional paying-off equipment.
In order to guide the lifting of buffer guide wheel mounting seat 31 and prevent buffer guide wheel mounting seat 31 from shaking, a first guide mechanism is provided between buffer guide wheel mounting seat 31 and support frame 1.
Referring to fig. 2 and 4, in another embodiment, in order to facilitate the release of knot when a knot is knotted, the height of the first pay-off guide wheel 21 is lowered, and thus the pay-off guide wheel mounting bracket 23 on which the first pay-off guide wheel 21 is mounted on a lifting structure including a second fixed pulley, a takeup structure including a reel 25 and a winding motor 26, and a second hoist rope 24, the pay-off guide wheel mounting bracket 23 is connected to the second hoist rope 24, the second hoist rope 24 is connected to the reel 25 around the second fixed pulley, and the reel 25 is connected to the winding motor 26.
Specifically, the second fixed pulley and the first fixed pulley 33 may be the same fixed pulley, and two pulley grooves may be provided. The first fixed pulley 33 and the second fixed pulley are not limited to be installed only at the top end of the support frame 1, but may be installed at the side portion of the support frame 1, or other places as long as the functions thereof can be achieved.
In order to guide the lifting of the paying-off guide wheel mounting frame 23 and prevent the paying-off guide wheel mounting frame 23 from shaking, a second guide mechanism is arranged between the paying-off guide wheel mounting frame 23 and the support frame 1.
The first guide mechanism and the second guide mechanism are identical in structure and comprise two roller groups 11 and a guide rail 12 arranged in the vertical direction, each roller group 11 comprises two rollers, the two rollers of each roller group 11 are respectively arranged on the left side and the right side of the guide rail 12, and each roller is in rolling contact with the guide rail 12 to avoid friction. Specifically, the roller groups 11 are respectively installed on the back of the paying-off guide wheel installation frame 23 or the buffering guide wheel installation seat 31, and the first guide structure and the second guide structure respectively include two roller groups 11 arranged up and down. The first guide mechanism and the second guide mechanism are not limited to the cooperation of the roller and the guide rail structure, and can be in other structures as long as the guide can be performed on the lifting of the buffering guide wheel mounting seat 31 and the paying-off guide wheel mounting frame 23.
In another embodiment, the pay-off stand further comprises a steering guide wheel 5, the wheel shaft of the second pay-off guide wheel 22 and the wheel shaft of the steering guide wheel 5 are arranged in parallel, the wheel surface of the steering guide wheel 5 is close to the wheel surface of the second pay-off guide wheel 22, the second pay-off guide wheel 22 and the steering guide wheel 5 form a first shelling wheel set, and the wheel surface of the steering guide wheel 5 and the second pay-off guide wheel 22 not only have a guiding function, but also have a shelling function.
Further, the pay-off stand also comprises a second husking wheel set 6 and/or a straightening wheel set 7.
The wire rod passes through the space between the steering guide wheel 5 and the second paying-off guide wheel 22, enters the second husking wheel group 6 for husking, then the wire rod 1 is straightened through the straightening wheel group 7, and enters the next procedure after being straightened.
Specifically, as shown in fig. 5, the second husking wheel set 6 includes a husking wheel set a61 and a husking wheel set B62, the husking wheel set a61 and the husking wheel set B62 respectively include two husking wheels with parallel axles, the axes of the two husking wheels of the husking wheel set a61 define a first plane, the axes of the two husking wheels of the husking wheel set B62 define a second plane, the first plane and the second plane are parallel or substantially parallel, and the axle included angle between the husking wheel set a61 and the husking wheel set B62 is 60-120 °. The arrangement of the peeling wheel group A61 and the peeling wheel group B62 can remove the oxide skin on two opposite surfaces of the wire rod by the bending deformation of the wire rod when the wire rod passes through the peeling wheel group A61, and remove the oxide skin on the other two opposite surfaces of the wire rod by the bending deformation of the wire rod when the wire rod passes through the peeling wheel group B62.
A hopper 8 is arranged at the lower part of the second paying-off guide wheel 22 and the second husking wheel group 6 and is used for collecting the husked waste materials, and the second husking wheel group 6 is arranged in the hopper 8.
Specifically, the second shelling wheel group 6 and the winding motor 26 are arranged in a machine shell 9.
In addition, in the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. The utility model provides a lift-draw formula pay off rack which characterized in that includes:
the pay-off mechanism comprises a first pay-off guide wheel and a second pay-off guide wheel;
a buffer mechanism;
the supporting frame is used for mounting the pay-off mechanism and the buffer mechanism;
the buffer mechanism includes:
the first fixed pulley is arranged on the supporting frame;
the buffer guide wheel is arranged on a buffer guide wheel mounting seat;
a balancing weight;
the displacement sensor is used for receiving the displacement information of the balancing weight;
the buffer guide wheel mounting seat is connected with a first lifting rope, and the first lifting rope is connected with the balancing weight by winding around a first fixed pulley;
the wire rod sequentially bypasses the first paying-off guide wheel, the second paying-off guide wheel and the buffering guide wheel through the traction of an external traction motor; in addition, in the paying-off process, the buffer guide wheel mounting seat keeps stress balance under the action of wire tension and counterweight tension; and the displacement sensor is connected with a controller of the traction motor.
2. The pull-up pay-off stand according to claim 1, wherein the pay-off mechanism further comprises a pay-off guide wheel mounting bracket for mounting the first pay-off guide wheel, and the pay-off guide wheel mounting bracket is driven by a lifting mechanism to lift.
3. The pull-up pay-off stand according to claim 2, wherein the elevating mechanism comprises:
the second fixed pulley is arranged on the supporting frame;
a retracting mechanism;
and the paying-off guide wheel mounting frame is connected with a second lifting rope, and the second lifting rope is connected with the take-up and drawing mechanism after winding around a second fixed pulley.
4. The pull-up pay-off stand according to claim 3, wherein the take-up mechanism comprises:
a reel for winding a second hoist rope;
and the winding drum is driven to rotate by the winding motor.
5. The pull-up pay-off stand according to claim 1, wherein the buffer mechanism further comprises a first guide mechanism for guiding the buffer guide wheel mounting seat to ascend and descend along the support frame.
6. The pull-up pay-off stand according to claim 5, wherein the first guide mechanism comprises:
at least one roller group arranged on the buffer guide wheel mounting seat, wherein each roller group comprises two rollers;
the guide rail that sets up vertically, two gyro wheels that constitute every roller train are located respectively the left and right sides of guide rail, every gyro wheel and guide rail rolling contact.
7. The pull-up pay-off stand according to claim 2, wherein the pay-off mechanism further comprises a second guide mechanism for guiding the pay-off guide wheel mounting frame to be lifted up and down along the support frame.
8. The pull-up pay-off stand according to claim 7, wherein the second guide mechanism comprises:
at least one roller group arranged on the pay-off guide wheel mounting frame, wherein each roller group comprises two rollers;
the guide rail of vertical setting, two gyro wheels that constitute every roller train locate the left and right sides of guide rail respectively, and every gyro wheel and guide rail rolling contact.
9. The pull type pay-off rack as claimed in claim 1, further comprising a turning guide wheel, wherein the wheel shaft of the turning guide wheel is parallel to the wheel shaft of the second pay-off guide wheel, and the wheel surface of the turning guide wheel is close to the wheel surface of the second pay-off guide wheel, and the second pay-off guide wheel and the turning guide wheel form a first husking wheel set.
10. The pull-up pay-off stand according to claim 9, further comprising a second stripping wheel set;
the second husking wheel set comprises a husking wheel set A and a husking wheel set B, the husking wheel set A and the husking wheel set B respectively comprise two husking wheels with wheel shafts arranged in parallel, the axes of the two husking wheels of the husking wheel set A determine a first plane, the axes of the two husking wheels of the husking wheel set B determine a second plane, the first plane and the second plane are parallel or approximately parallel, and the wheel shaft included angle of the husking wheel set A and the husking wheel set B is 60-120 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921240429.2U CN211027577U (en) | 2019-07-31 | 2019-07-31 | Lifting type pay-off rack |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921240429.2U CN211027577U (en) | 2019-07-31 | 2019-07-31 | Lifting type pay-off rack |
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| CN211027577U true CN211027577U (en) | 2020-07-17 |
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| CN201921240429.2U Active CN211027577U (en) | 2019-07-31 | 2019-07-31 | Lifting type pay-off rack |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110479792A (en) * | 2019-07-31 | 2019-11-22 | 德州恒远焊材有限公司 | A kind of pull-type pay off rack |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110479792A (en) * | 2019-07-31 | 2019-11-22 | 德州恒远焊材有限公司 | A kind of pull-type pay off rack |
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