CN219861966U - Support device for movement of extensible object and hot air tentering setting machine - Google Patents
Support device for movement of extensible object and hot air tentering setting machine Download PDFInfo
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- CN219861966U CN219861966U CN202223153499.9U CN202223153499U CN219861966U CN 219861966 U CN219861966 U CN 219861966U CN 202223153499 U CN202223153499 U CN 202223153499U CN 219861966 U CN219861966 U CN 219861966U
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- 230000033001 locomotion Effects 0.000 title claims abstract description 40
- 230000008093 supporting effect Effects 0.000 claims abstract description 187
- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 8
- 238000001125 extrusion Methods 0.000 claims description 2
- 239000004745 nonwoven fabric Substances 0.000 abstract description 24
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 239000004744 fabric Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009998 heat setting Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000010415 tidying Methods 0.000 description 1
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Abstract
The utility model provides a supporting device for movement of an extensible object and a hot air tentering setting machine, wherein the supporting device for movement of the extensible object comprises a frame body, a driving device and a supporting unit, and the supporting unit comprises a first supporting wheel, a second supporting wheel and an annular supporting belt; the first supporting wheel and the second supporting wheel are rotatably connected to the frame body, the axes of the first supporting wheel and the second supporting wheel are parallel, the annular supporting belt surrounds the first supporting wheel and the second supporting wheel, a supporting section for supporting the extensible object is formed between the first supporting wheel and the second supporting wheel by the annular supporting belt, and the driving device is in transmission connection with the annular supporting belt and is used for driving the supporting section to do movement in the same direction as the movement direction of the extensible object. The device can support the non-woven fabric in the process of finishing the non-woven fabric, ensure the stability of the motion state of the non-woven fabric and avoid influencing the finishing work.
Description
Technical Field
The utility model relates to the technical field of textile machinery, in particular to a supporting device for movement of an extensible object and a hot air tentering setting machine.
Background
With the improvement and innovation of the raw materials and the processing method of the non-woven fabric, the application range of the non-woven fabric is continuously expanded. Nonwoven fabrics, like other textiles, also require proper finishing. The hot air tentering setting machine belongs to one of the after-finishing technical equipment, and the working mode is that two ends of a nonwoven fabric web are held through needle plate needle clamps, the traction equipment pulls the needle plate needle clamps through chains, and the nonwoven fabric is driven to enter an oven through needle plate needle clamps, so that the purposes of width adjustment and heat setting are achieved. By adopting the technical scheme, the non-woven fabric is fixed by the needle plate needle clamps at the two ends in the width direction, the middle part is in a suspended state, and when the quality of the non-woven fabric is large or the width of the non-woven fabric is wide, the phenomenon that the needle plate needle clamps are unstable to the non-woven fabric (such as breakage of the needle plate needle clamps, chain jumping, chain releasing and the like) or overload of traction equipment and the like easily occurs, so that the motion state of the non-woven fabric is unstable, and further adverse effects are caused on the after-finishing work.
Disclosure of Invention
The utility model mainly aims to provide a supporting device for movement of an extensible object and a hot air tentering setting machine, which can support a non-woven fabric in the process of finishing the non-woven fabric, further ensure the stability of the movement state of the non-woven fabric and avoid influencing the finishing work.
The utility model provides a supporting device for movement of an extensible object, which comprises a frame body, a driving device and a supporting unit, wherein the supporting unit comprises a first supporting wheel, a second supporting wheel and an annular supporting belt;
the first supporting wheel and the second supporting wheel are rotatably connected to the frame body, and the annular supporting belt surrounds the first supporting wheel and the second supporting wheel, so that a supporting section for supporting the extensible object is formed between the first supporting wheel and the second supporting wheel by the annular supporting belt;
the driving device is in transmission connection with the annular supporting belt and is used for driving the supporting section (331) to move in the same direction as the movement direction of the extensible object.
Preferably, a first annular groove extending along the axial direction of the first supporting wheel is arranged on the first supporting wheel, and when the annular supporting belt is wound on the first supporting wheel, the annular supporting belt is at least partially positioned in the first annular groove, and the cross section shape of the first annular groove is matched with that of the annular supporting belt;
and/or a second annular groove extending along the axial direction of the second supporting wheel is arranged on the second supporting wheel, when the annular supporting belt is wound on the second supporting wheel, the annular supporting belt is at least partially positioned in the second annular groove, and the section shape of the second annular groove is matched with the section shape of the annular supporting belt.
Preferably, the supporting unit further comprises a driving wheel;
the driving wheel is rotatably connected to the frame body, the axis of the driving wheel is parallel to that of the first supporting wheel, the annular supporting belt surrounds the driving wheel, and the driving device is in transmission connection with the driving wheel and is used for driving the annular supporting belt to move through the driving wheel.
Preferably, a third annular groove extending along the axial direction of the driving wheel is formed in the driving wheel, when the annular supporting belt surrounds the driving wheel, the annular supporting belt is at least partially located in the third annular groove, and the cross section shape of the third annular groove is matched with that of the annular supporting belt.
Preferably, the supporting unit further comprises a tensioning wheel and an adjusting mechanism;
the tensioning wheel is rotatably connected to the frame body through the adjusting mechanism, and the axis of the tensioning wheel is parallel to the axis of the first supporting wheel;
the tensioning wheel is located outside the surrounding range of the annular supporting belt and is abutted to the annular supporting belt, so that the tensioning wheel can apply extrusion force to the annular supporting belt towards the inside of the surrounding range under the drive of the adjusting mechanism.
Preferably, the adjusting mechanism comprises a mounting seat and an adjusting screw;
the adjusting screw is rotatably connected to the frame body, a screw hole matched with the adjusting screw is formed in the mounting seat, and the mounting seat is connected to the adjusting screw through the screw hole in a threaded manner;
the tensioning wheel is rotatably connected to the mounting seat, so that the adjusting screw can adjust the position of the tensioning wheel through screwing in or screwing out in the screw hole.
Preferably, a fourth annular groove extending along the axial direction of the tensioning wheel is arranged on the tensioning wheel, and when the tensioning wheel is abutted on the annular supporting belt, the annular supporting belt is at least partially positioned in the fourth annular groove;
the cross-sectional shape of the fourth annular groove matches the cross-sectional shape of the annular support band.
Preferably, the device further comprises a driving shaft;
the number of the supporting units is at least two, and the at least two supporting units are sequentially arranged at intervals along the moving direction perpendicular to the extensible object;
the driving shaft is rotatably connected to the frame body, the annular supporting belts in at least two supporting units are in transmission connection with the driving shaft, and the driving device is in transmission connection with the driving shaft and is used for driving the annular supporting belts to move through the driving shaft.
Preferably, the device further comprises a speed detection device and a controller;
the speed detection device and the driving device are electrically connected with the controller, the speed detection device collects the movement speed information of the extensible object in real time and sends the information to the controller, and the controller controls the driving device to work according to the received movement speed information of the extensible object.
A hot air tentering setting machine for drawing a nonwoven fabric into the setting machine for finishing, the hot air tentering setting machine comprising: the support device for a malleable object of any of the above technical features.
According to the supporting device for the extensible object and the hot air tentering setting machine, the extensible object is supported by the supporting section through the supporting unit, and the moving direction of the supporting section is the same as that of the extensible object, so that the non-woven fabric can be supported in the process of finishing the non-woven fabric, the stability of the moving state of the non-woven fabric is further ensured, and the influence on finishing work is avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:
FIG. 1 is a schematic view of a support device for a malleable object in accordance with an embodiment of the utility model;
FIG. 2 is a schematic view in the K-direction of FIG. 1 (without annular support band state);
FIG. 3 is a schematic view of section A-A of FIG. 1 (without annular support band);
FIG. 4 is a schematic view of the installation of the tensioner of FIG. 1;
fig. 5 is a schematic diagram of a control circuit of the driving device in fig. 1.
In the figure: 1-a frame body; 2-a driving device; 3-a supporting unit; 31-a first support wheel; 311-a first annular groove; 32-a second support wheel; 321-a second annular groove; 33-an annular support band; 331-a support section; 34-a driving wheel; 341-a third annular groove; 35-tensioning wheel; 351-fourth annular grooves; 36-mounting seats; 361-screw holes; 37-adjusting the screw; 38-a bend wheel; 381-fifth annular groove; 4-driving shaft; 5-a speed detector; 6-a controller.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to specific embodiments of the present utility model and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, 2 and 3, a support device for movement of a malleable object comprises a frame 1, a driving device 2 and a support unit 3, wherein the support unit 3 comprises a first support wheel 31, a second support wheel 32 and an annular support belt 33. The first support wheel 31 and the second support wheel 32 are rotatably connected to the frame 1 with their axes parallel, and the endless support belt 33 is looped around the first support wheel 31 and the first support wheel 32, so that the endless support belt 33 forms a support section 331 between the first support wheel 31 and the second support wheel 32, and the extensible object (shown in the figure) moves over the support unit 3, and the support unit 3 holds the extensible object by means of the support section 331. The driving device 2 is in transmission connection with the annular supporting belt 33 for driving the annular supporting belt 33 to move around the first supporting wheel 31 and the second supporting wheel 32, and the moving direction of the supporting section 331 is the same as the moving direction of the extensible object. Wherein the extensible object may be a cloth, paper, or the like capable of being extended.
By adopting the technical scheme, when the supporting device for the movement of the extensible object is applied to the hot air tentering setting machine, the nonwoven cloth tidied by the hot air tentering setting machine can be supported, namely, the nonwoven cloth is supported by the supporting section 331 on the annular supporting belt 33, and meanwhile, the supporting section 331 can synchronously move with the nonwoven cloth supported by the supporting section 331, so that the weight of the nonwoven cloth (the extensible object) can be borne by the supporting device, the stability of the movement state of the nonwoven cloth is further ensured, and the influence on the after-tidying work is avoided. Meanwhile, the supporting section 331 moves synchronously with the non-woven fabric supported by the supporting section 331, so that the supporting section 331 can be prevented from being damaged on the non-woven fabric due to relative movement of the non-woven fabric.
Specifically, as shown in fig. 2, a first annular groove 311 extending in the axial direction of the first support wheel 31 is provided on the first support wheel 31, and when the annular support belt 33 is wound around the first support wheel 31, the annular support belt 33 is at least partially located within the first annular groove 311, and the cross-sectional shape of the first annular groove 311 matches the cross-sectional shape of the annular support belt 33. By adopting the technical scheme, the movement track of the annular supporting belt 33 can be limited through the first annular groove 311, so that the annular supporting belt is prevented from falling off from the first supporting wheel 31. In actual production, if the cross-sectional shape of the annular supporting band 33 is circular, the cross-sectional shape of the first annular groove 311 may be made into a circular arc shape having a diameter equal to the cross-sectional diameter of the annular supporting band 33, but the depth of the first annular groove 311 cannot be larger than the radius of the cross-section of the annular supporting band 33.
And/or, as shown in fig. 3, a second annular groove 321 extending axially along the second support wheel 32 is provided on the second support wheel 32, and when the annular support belt 33 is looped around the second support wheel 32, the annular support belt 33 is at least partially located within the second annular groove 321, and the cross-sectional shape of the second annular groove 321 matches the cross-sectional shape of the annular support belt 33. The second annular groove 321 is designed for the same purpose and structure as the first annular groove 311 and will not be described here.
Further, as shown in fig. 1 and 2, the supporting unit 3 further includes a driving wheel 34. The driving wheel 34 is rotatably connected to the frame body 1, the axis of the driving wheel 34 is parallel to the axis of the first supporting wheel 31, the annular supporting belt 33 surrounds the driving wheel 34, and the driving device 2 is in transmission connection with the driving wheel 34 and is used for driving the annular supporting belt 33 to move through the driving wheel 34. Specifically, a third annular groove 341 extending axially along the driving wheel 34 is provided on the driving wheel 34, and when the annular supporting belt 33 is wound around the driving wheel 34, the annular supporting belt 33 is at least partially located within the third annular groove 341, and the cross-sectional shape of the third annular groove 341 matches the cross-sectional shape of the annular supporting belt 33. Wherein the third annular recess 341 is designed for the same purpose and structure as the first annular recess 311, and will not be described herein.
As a preferred embodiment, as shown in fig. 1 and 2, the support unit 3 further comprises a tensioning wheel 35 and an adjusting mechanism (not shown). The tensioning wheel 35 is rotatably connected to the frame 1 by an adjusting mechanism, and the axis of the tensioning wheel 35 is parallel to the axis of the first supporting wheel 31. The tensioning wheel 35 is located outside the encircling range of the annular supporting belt 33 and abuts against the annular supporting belt 33, so that the tensioning wheel 35 can apply a pressing force towards the annular supporting belt 33 within the encircling range under the drive of the adjusting mechanism. With such a technical solution, the annular supporting belt 33 can be pressed by the tension pulley 35 to be kept in a tensioned state. In this embodiment, the adjustment mechanism may include a mounting block 36 and an adjustment screw 37 as shown in fig. 4. The adjusting screw 37 is rotatably connected to the frame body 1, a screw hole 361 matched with the adjusting screw 37 is formed in the mounting seat 36, and the mounting seat 36 is in threaded connection with the adjusting screw 37 through the screw hole 361. The tensioner 35 is rotatably coupled to the mount 36 such that the adjustment screw 37 adjusts the position of the tensioner 35 by screwing in or out of the threaded hole 361. The structural form of the adjusting mechanism is not limited to this, and any other technical scheme capable of achieving the object of the present utility model may be adopted. In practical manufacturing, reference may be made to the first supporting wheel 31, and a fourth annular groove 351 extending along the axial direction of the tensioning wheel 35 is provided on the tensioning wheel 35, and when the tensioning wheel 35 abuts against the annular supporting belt 33, the annular supporting belt 33 is at least partially located inside the fourth annular groove 351, and the cross-sectional shape of the fourth annular groove 351 matches the cross-sectional shape of the annular supporting belt 33.
More preferably, the support unit 3 further comprises a bend wheel 38. The redirecting wheel 38 is rotatably connected to the frame body 1, and the axis is parallel to the axis of the first supporting wheel 31, and the annular supporting belt 33 is wound around the redirecting wheel 35. In this way, the annular supporting belt 33 can be spread together through the bend wheel 38, the first supporting wheel 31 and the second supporting wheel 32, and meanwhile, the specific position of the bend wheel 38 can be determined according to the actual working requirement, so that the annular supporting belt 33 can be spread to be in the shape required by the actual working. In practical manufacturing, reference may be made to the first supporting wheel 31, and the redirecting wheel 38 is provided with a fifth annular groove 381 extending along the axial direction of the redirecting wheel 38, the annular supporting belt 33 is surrounded within the fifth annular groove 381, and the cross-sectional shape of the fifth annular groove 381 matches the cross-sectional shape of the annular supporting belt 33.
As an alternative embodiment, as shown in fig. 2, a drive shaft 4 is also included. The number of the supporting units 3 is at least two, and the at least two supporting units 3 are sequentially arranged at intervals along the direction perpendicular to the movement direction of the extensible object. The driving shaft 4 is rotatably connected to the frame body 1, the annular supporting belts 33 in at least two supporting units 3 are in transmission connection with the driving shaft 4, and the driving device 2 is in transmission connection with the driving shaft 4 so as to drive the annular supporting belts 33 to move through the driving shaft 4. The extensible object is supported by more than two support units 3, so that the supporting effect can be further ensured, and the synchronism of the movement of the annular support belt 33 in at least two support units 3 can be ensured. When the driving shaft 4 and the annular supporting belt 33 are in transmission connection, as shown in fig. 2, and the supporting unit 3 further comprises a driving wheel 34, the driving wheel 34 is rotatably connected to the frame body 1, the axis is parallel to the axis of the first supporting wheel 31, the annular supporting belt 33 is wound on the driving wheel 34, and the driving device 2 is in transmission connection with the driving wheel 34 and is used for driving the annular supporting belt 33 to move through the driving wheel 34. At this time, the driving wheel 34 is connected to the driving shaft 4 and is driven by the driving shaft 4 to rotate, so as to drive the annular supporting belt 33 to move. In practical manufacturing, a supporting rod (not shown) may be provided, two ends of the supporting rod are respectively connected to the annular supporting bands 33 of the two adjacent supporting units 3, and the extending direction of the supporting rod may be perpendicular to the moving direction of the extensible object, so that the supporting rod and the supporting segment 331 may jointly support the extensible object when the supporting rod is located between the supporting segments 331 of the two adjacent supporting units 3.
As an alternative embodiment, as shown in fig. 5, a speed detecting device 5 and a controller 6 are further included. The speed detection device 5 and the driving device 2 are electrically connected with the controller 6, the speed detection device 5 collects the movement speed information of the extensible object in real time and sends the information to the controller 6, and the controller 6 controls the driving device 2 to work according to the received movement speed information of the extensible object. In this way, the controller 6 can control the driving device 2 to make the movement speed of the annular supporting belt 33 identical to the movement speed of the extensible object, so as to avoid the relative movement between two.
In order to achieve the purpose of the utility model, the utility model also provides a hot air tentering setting machine, which is used for drawing non-woven fabrics into the setting machine for finishing, and comprises: the support means for the malleable object as described in any of the embodiments above.
The above description is only an example of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the scope of the claims of the present utility model.
Claims (10)
1. A support device for movement of a malleable object, comprising:
the device comprises a frame body (1), a driving device (2) and a supporting unit (3), wherein the supporting unit (3) comprises a first supporting wheel (31), a second supporting wheel (32) and an annular supporting belt (33);
the first supporting wheel (31) and the second supporting wheel (32) are rotatably connected to the frame body (1), the annular supporting belt (33) is wound on the first supporting wheel (31) and the second supporting wheel (32), and the annular supporting belt (33) forms a supporting section (331) for bearing the extensible object between the first supporting wheel (31) and the second supporting wheel (32);
the driving device (2) is in transmission connection with the annular supporting belt (33) and is used for driving the supporting section (331) to move in the same direction as the movement direction of the extensible object.
2. The support device for movement of a malleable object, as set forth in claim 1, wherein:
-providing a first annular groove (311) extending axially along the first support wheel (31) on the first support wheel (31), the annular support belt (33) being located at least partially within the first annular groove (311) when the annular support belt (33) is looped around the first support wheel (31), the first annular groove (311) having a cross-sectional shape matching the cross-sectional shape of the annular support belt (33);
and/or, a second annular groove (321) extending along the axial direction of the second supporting wheel (32) is arranged on the second supporting wheel (32), when the annular supporting belt (33) is wound on the second supporting wheel (32), the annular supporting belt (33) is at least partially positioned in the second annular groove (321), and the cross section shape of the second annular groove (321) is matched with the cross section shape of the annular supporting belt (33).
3. The support device for movement of a malleable object, as set forth in claim 1, wherein:
the supporting unit (3) further comprises a driving wheel (34);
the driving wheel (34) is rotatably connected to the frame body (1), the axis of the driving wheel is parallel to the axis of the first supporting wheel (31), the annular supporting belt (33) surrounds the driving wheel (34), and the driving device (2) is in transmission connection with the driving wheel (34) and is used for driving the annular supporting belt (33) to move through the driving wheel (34).
4. A support device for movement of a malleable object according to claim 3, wherein:
a third annular groove (341) extending along the axial direction of the driving wheel (34) is arranged on the driving wheel (34), when the annular supporting belt (33) is wound on the driving wheel (34), the annular supporting belt (33) is at least partially positioned in the third annular groove (341), and the cross section shape of the third annular groove (341) is matched with the cross section shape of the annular supporting belt (33).
5. The support device for movement of a malleable object, as set forth in claim 1, wherein:
the supporting unit (3) further comprises a tensioning wheel (35) and an adjusting mechanism;
the tensioning wheel (35) is rotatably connected to the frame body (1) through the adjusting mechanism, and the axis of the tensioning wheel (35) is parallel to the axis of the first supporting wheel (31);
the tensioning wheel (35) is located outside the surrounding range of the annular supporting belt (33) and is abutted against the annular supporting belt (33), so that the tensioning wheel (35) can apply extrusion force to the annular supporting belt (33) towards the surrounding range under the drive of the adjusting mechanism.
6. The support device for movement of a malleable object, as claimed in claim 5, wherein:
the adjusting mechanism comprises a mounting seat (36) and an adjusting screw rod (37);
the adjusting screw (37) is rotatably connected to the frame body (1), a screw hole (361) matched with the adjusting screw (37) is formed in the mounting seat (36), and the mounting seat (36) is connected to the adjusting screw (37) through the screw hole (361) in a threaded mode;
the tensioning wheel (35) is rotatably connected to the mounting seat (36) so that the adjusting screw (37) can adjust the position of the tensioning wheel (35) through screwing in or screwing out in the screw hole (361).
7. The support device for movement of a malleable object, as claimed in claim 5, wherein:
-providing a fourth annular groove (351) on the tensioning wheel (35) extending axially along the tensioning wheel (35), the annular supporting belt (33) being at least partially located within the fourth annular groove (351) when the tensioning wheel (35) abuts against the annular supporting belt (33);
the cross-sectional shape of the fourth annular groove (351) matches the cross-sectional shape of the annular supporting band (33).
8. A support device for movement of a malleable object, according to any one of claims 1 to 7, wherein:
further comprises a driving shaft (4);
the number of the supporting units (3) is at least two, and the at least two supporting units (3) are sequentially arranged at intervals along the moving direction perpendicular to the extensible object;
the driving shaft (4) is rotatably connected to the frame body (1), the annular supporting belts (33) in at least two supporting units (3) are in transmission connection with the driving shaft (4), and the driving device (2) is in transmission connection with the driving shaft (4) and is used for driving the annular supporting belts (33) to move through the driving shaft (4).
9. A support device for movement of a malleable object, according to any one of claims 1 to 7, wherein:
the device also comprises a speed detection device (5) and a controller (6);
the speed detection device (5) and the driving device (2) are electrically connected with the controller (6), the speed detection device (5) collects movement speed information of the extensible object in real time and sends the information to the controller (6), and the controller (6) controls the driving device (2) to work according to the received movement speed information of the extensible object.
10. The utility model provides a hot-blast tentering setting machine for draw into the setting machine with nonwoven and carry out the arrangement, its characterized in that:
comprising the following steps: a support means for movement of a malleable object as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223153499.9U CN219861966U (en) | 2022-11-25 | 2022-11-25 | Support device for movement of extensible object and hot air tentering setting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223153499.9U CN219861966U (en) | 2022-11-25 | 2022-11-25 | Support device for movement of extensible object and hot air tentering setting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219861966U true CN219861966U (en) | 2023-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223153499.9U Active CN219861966U (en) | 2022-11-25 | 2022-11-25 | Support device for movement of extensible object and hot air tentering setting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219861966U (en) |
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2022
- 2022-11-25 CN CN202223153499.9U patent/CN219861966U/en active Active
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