CN116902703B - Air expansion shaft for textile cloth conveying equipment - Google Patents
Air expansion shaft for textile cloth conveying equipment Download PDFInfo
- Publication number
- CN116902703B CN116902703B CN202311178423.8A CN202311178423A CN116902703B CN 116902703 B CN116902703 B CN 116902703B CN 202311178423 A CN202311178423 A CN 202311178423A CN 116902703 B CN116902703 B CN 116902703B
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- Prior art keywords
- gear
- block
- protruding
- mandrel
- protruding block
- Prior art date
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- 239000004753 textile Substances 0.000 title claims abstract description 20
- 239000004744 fabric Substances 0.000 title claims abstract description 19
- 238000003825 pressing Methods 0.000 claims abstract description 22
- 230000000875 corresponding effect Effects 0.000 claims abstract description 19
- 230000009471 action Effects 0.000 claims description 16
- 238000005452 bending Methods 0.000 claims description 5
- 230000001154 acute effect Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 7
- 238000005096 rolling process Methods 0.000 abstract description 3
- 230000001360 synchronised effect Effects 0.000 abstract description 3
- 238000004804 winding Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000004049 embossing Methods 0.000 description 3
- 239000012634 fragment Substances 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000010985 leather Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010096 film blowing Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/18—Constructional details
- B65H75/24—Constructional details adjustable in configuration, e.g. expansible
- B65H75/242—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages
- B65H75/243—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages actuated by use of a fluid
Landscapes
- Treatment Of Fiber Materials (AREA)
Abstract
The application discloses an inflatable shaft for textile fabric conveying equipment, wherein a first gear and a second gear which are meshed with each other are also rotationally connected to a first pressing inclined plane of the inflatable shaft; the second pressing inclined plane is rotationally connected with a third gear, and the third gear and the first gear are respectively meshed with the corresponding action inclined planes through a rack for transmission; when the spindle drives the movable pushing block to move towards the fixed pushing block, the rotation speed of the first gear and the rotation speed of the third gear can be guaranteed to be the same; therefore, in the process that the movable pushing block moves towards the fixed pushing block, the first gear and the third gear positioned at two sides of the protruding block can synchronously drive the protruding block to expand outwards; in the process, on one hand, the original sliding contact is changed into the rolling contact of the gear and the rack, so that the influence of friction force is reduced, and the bulge blocks are smoother when outwards expanding; on the other hand, the synchronous meshing transmission of the gear racks at two sides enables two ends of the protruding block to expand synchronously, so that the problem that expansion is asynchronous at two sides possibly occurs in the prior art is avoided.
Description
Technical Field
The application relates to the field of textile machinery, in particular to an inflatable shaft for textile cloth conveying equipment.
Background
The inflatable shaft has wide application: the machine with winding, unwinding and slitting functions is applicable to an inflatable shaft. Suitable for other mechanical devices are: the machine comprises a coating machine, a leather machine, a shaping machine, an embossing machine, a slitting machine, a die cutting machine, a rewinding machine, a paper cylinder machine, a laminating machine, a film blowing machine, a foaming machine, a film spraying machine, an embossing machine, a paper machine, a non-woven fabric machine, a cloth inspecting machine, a stamping machine, battery equipment and the like.
In the prior art, the mechanical air expansion shaft mainly comprises a mandrel, a fixed push block and a movable push block, wherein the fixed push block is penetrated by the mandrel and can axially slide along the mandrel, the movable push block is connected with the mandrel, and the fixed push block is mechanically connected with equipment and is fixed in position; the movable push block is connected with the mandrel, the mandrel is connected with the air cylinder through a bearing, the movable push block is pulled to be close to the fixed push block through the air cylinder, and as a plurality of protruding blocks are arranged between the fixed push block and the movable push block, one action inclined plane corresponding to each protruding block on the fixed push block is formed with a first pressing inclined plane, and the other action inclined plane corresponding to each protruding block on the movable push block is formed with a second pressing inclined plane; therefore, when the movable pushing block moves towards the fixed pushing block, the plurality of protruding blocks can be expanded outwards synchronously under the action of the action inclined plane, the second pressing inclined plane and the first pressing inclined plane.
However, because the second supports and presses the inclined plane, the first supports and presses and acts on and rub between the inclined plane for sliding, after long-time use, when wearing and tearing appear between fixed ejector pad and the protruding piece, both frictional forces can increase and appear the clamping stagnation phenomenon to and protruding piece both ends expansion asynchronous phenomenon, thereby influence its use.
Disclosure of Invention
In order to solve the problems, the application discloses an inflatable shaft for textile fabric conveying equipment.
In order to achieve the above purpose, the present application provides the following technical solutions: the inflatable shaft for the textile cloth conveying equipment comprises a mandrel, a fixed push block and a movable push block, wherein the fixed push block is penetrated by the mandrel and can axially slide along the mandrel, and the movable push block is connected with the mandrel and is arranged at intervals along the same straight line with the fixed push block;
a plurality of protruding blocks are arranged between the fixed pushing block and the movable pushing block, and the protruding blocks are annularly arranged around the mandrel; an O-shaped ring is sleeved on the outer side among the plurality of protruding blocks, action inclined planes are concavely arranged at two ends of each protruding block, a first pressing inclined plane is formed on the fixed pushing block corresponding to one action inclined plane of each protruding block, and a second pressing inclined plane is formed on the movable pushing block corresponding to the other action inclined plane of each protruding block;
the first pressing inclined plane is rotationally connected with a first gear and a second gear which are meshed with each other, the second pressing inclined plane is rotationally connected with a third gear, the third gear and the first gear are respectively in meshed transmission with corresponding action inclined planes through a rack, the second gear is in meshed transmission with the mandrel through another rack, and the diameters of the first gear, the second gear and the third gear are the same.
In the above scheme, a clamping strip is arranged on the mandrel in a protruding mode corresponding to each protruding block, the clamping strip extends along the axial direction of the mandrel, one end of the clamping strip penetrates through the fixed pushing block in a sliding mode, a sliding groove is formed in the protruding block corresponding to the clamping strip, and the clamping strip is clamped in the sliding groove in a sliding mode.
In the scheme, the clamping strip is provided with a rack along the length direction of the clamping strip, and the second gear is meshed with the rack of the clamping strip for transmission.
In the above scheme, the outer peripheral face of protruding piece is concave to be equipped with the holding tank, the bottom of holding tank has a shell fragment, the outer wall of shell fragment evenly is connected with a plurality of backing plates, each the top of backing plate all stretches out to the outside of protruding piece.
In the above scheme, be formed with the arc spout between the bottom of shell fragment with the holding tank, the arc spout with the concentric setting of mandrel, be provided with the elasticity kicking block in the arc spout, just the elasticity kicking block is the arcuation.
In the above scheme, a plurality of the support pieces are arranged at intervals in parallel along the radial direction of the mandrel.
In the above scheme, be provided with the elastic connection piece between the adjacent protruding piece, the elastic connection piece is crooked to form the arc shape, the both ends of elastic connection piece respectively with protruding piece links to each other, just the middle part of elastic connection piece outwards crooked setting.
In the above scheme, the elastic connection piece is followed the length direction extension setting of protruding piece, the both ends department shaping of elastic connection piece has the bent edge, the bent edge with the lateral wall clamp acute angle setting of protruding piece.
In the above scheme, a telescopic sleeve is sleeved between the end part of the protruding block and the fixed pushing block and between the protruding block and the movable pushing block respectively.
In the above scheme, the one end of flexible cover extends to elastic connection piece department, just flexible cover all is formed with flexible folding portion in horizontal and vertical direction.
Compared with the prior art, the application has the following advantages: in the scheme of the application, a first gear and a second gear which are meshed with each other are also rotationally connected on a first pressing inclined plane of the air expansion shaft; the second pressing inclined surface is rotationally connected with a third gear, the third gear and the first gear are respectively meshed with the corresponding action inclined surface through a rack for transmission, and the diameters of the first gear, the second gear and the third gear are the same; when the spindle drives the movable pushing block to move towards the fixed pushing block, the rotation speed of the first gear and the rotation speed of the third gear can be guaranteed to be the same; therefore, in the process that the movable pushing block moves towards the fixed pushing block, the first gear and the third gear positioned at two sides of the protruding block can synchronously drive the protruding block to expand outwards; in the process, on one hand, the original sliding contact is changed into the rolling contact of the gear and the rack, so that the influence of friction force is reduced, and the bulge blocks are smoother when outwards expanding; on the other hand, the synchronous meshing transmission of the gear racks at two sides enables two ends of the protruding block to expand synchronously, so that the problem that expansion is asynchronous at two sides possibly occurs in the prior art is avoided.
Drawings
FIG. 1 is a perspective view of an inflatable shaft according to an embodiment of the present application;
FIG. 2 is a cross-sectional view of an inflatable shaft in an embodiment of the application;
FIG. 3 is a schematic diagram illustrating the position of a card strip according to an embodiment of the present application;
FIG. 4 is a schematic diagram illustrating the cooperation of the clamping strip and the sliding groove in the embodiment of the application;
FIG. 5 is an enlarged partial schematic view of FIG. 4 at A;
fig. 6 is a schematic structural view of a supporting sheet in embodiment 2 of the present application;
fig. 7 is a schematic diagram illustrating the position of the spring in embodiment 2 of the present application.
Detailed Description
The present application will be further elucidated with reference to the following embodiments, which should be understood as merely illustrative of the application and not as limiting the scope of the application. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.
Example 1: an inflatable shaft for textile cloth conveying equipment is used for textile machinery such as a coating machine, a leather machine, a shaping machine, an embossing machine and the like; as shown in fig. 1, the inflatable shaft mainly comprises a mandrel 100, a fixed push block 101 and a movable push block 102, wherein the fixed push block 101 is penetrated by the mandrel 100 and can axially slide along the mandrel, and the movable push block 102 is connected with the mandrel 100 and is arranged at intervals along the same straight line with the fixed push block 101; in the related art, the fixed push block 101 is mechanically connected to the apparatus, and its position is fixed; the movable push block 102 is connected with the mandrel 100, the mandrel 100 is connected with the air cylinder through a bearing, the movable push block 102 is pulled to be close to the fixed push block 101 through the air cylinder, and as a plurality of convex blocks 103 are arranged between the fixed push block 101 and the movable push block 102, a first pressing inclined surface 111 is formed on the fixed push block 101 corresponding to one action inclined surface 131 of each convex block 103, and a second pressing inclined surface 121 is formed on the movable push block 102 corresponding to the other action inclined surface 131 of each convex block 103; therefore, when the movable push block 102 moves towards the fixed push block 101, the inclined angles of the three inclined planes are preferably 45 degrees through the action of the action inclined plane 131, the second pressing inclined plane 121 and the first pressing inclined plane 111, so that the plurality of protruding blocks 103 can be synchronously expanded outwards, the whole diameter of the protruding blocks is enlarged, and the protruding blocks are further contacted with a winding drum for winding and unwinding the woven fabric to support the winding drum; in order to ensure that the convex blocks 103 can always contact with the fixed push block 101 and the movable push block 102, O-shaped rings 105 are sleeved outside among a plurality of the convex blocks 103, a plurality of O-shaped rings 105 are arranged, and the convex blocks 103 are pressed on the fixed push block 101 and the movable push block 102 through the O-shaped rings 105;
in this embodiment, referring to fig. 2, a first gear 112 and a second gear 113 that are meshed with each other are also rotatably connected to the first pressing inclined surface 111;
the second pressing inclined surface 121 is rotatably connected with a third gear 122, the third gear 122 and the first gear 112 are respectively meshed with the corresponding action inclined surface 131 through a rack for transmission, and the diameters of the first gear 112, the second gear 113 and the third gear 122 are the same;
when the spindle 100 drives the movable push block 102 to move towards the fixed push block 101, the third gear 122 on the movable push block 102 is in meshed transmission with the action inclined plane 131 on the right side of the protruding block 103 through a rack, meanwhile, the action inclined plane 131 on the left side of the protruding block 103 is in meshed transmission with the first gear 112 through a rack, and the spindle 100 is in meshed transmission with the second gear 113 through the rack firstly and then drives the first gear 112 to rotate through the second gear 113, so that the first gear 112 and the third gear 122 can synchronously rotate outwards or inwards in the moving process of the movable push block 102, the diameters of the first gear 112, the second gear 113 and the third gear 122 are the same, and the same rotating speeds of the first gear 112 and the third gear 122 can be ensured; therefore, in the process that the movable push block 102 moves towards the fixed push block 101, the first gear 112 and the third gear 122 positioned at two sides of the protruding block 103 can synchronously drive the protruding block 103 to expand outwards;
in the above process, on one hand, the original sliding contact is changed into the rolling contact of the gear and the rack, so that the influence of friction force is reduced, and the bulge block 103 is smoother when expanding outwards; on the other hand, the synchronous meshing transmission of the gear racks at two sides enables two ends of the protruding block 103 to expand synchronously, so that the problem that expansion is asynchronous at two sides possibly occurs in the prior art is avoided.
As shown in fig. 3 and 4, a clamping strip 104 is convexly arranged on the spindle 100 corresponding to each protruding block 103, the clamping strip 104 is arranged along the axial extension of the spindle 100, one end of the clamping strip 104 penetrates through the fixed push block 101 in a sliding manner, a sliding groove 106 is formed on the protruding block 103 corresponding to the clamping strip 104, and the clamping strip 104 is slidably clamped in the sliding groove 106; specifically, a rack is arranged on the clamping strip 104 along the length direction thereof, and the second gear 113 is meshed with the rack of the clamping strip 104 for transmission; the protruding block 103 can be further limited through the clamping strip 104, so that rotation between the protruding block 103 and the mandrel 100 is avoided when the radial stress of the protruding block 103 is large.
6-7, unlike in embodiment 1, a receiving groove is concavely formed on the outer circumferential surface of the protruding block 103, a spring plate 132 is provided at the bottom end of the receiving groove, the outer wall of the spring plate 132 is uniformly connected with a plurality of supporting pieces 133, and the top end of each supporting piece 133 extends to the outer side of the protruding block 103; a plurality of the support pieces 133 are arranged in parallel at intervals in the radial direction of the spindle 100 to be uniform; the supporting pieces 133 can be made of elastic stainless steel sheets, the outer ends of the supporting pieces 133 have a certain expansion range, when protrusions exist on the inner side wall of the textile fabric winding drum in a non-round or non-smooth manner, the plurality of supporting pieces 133 are arranged on the outer side of the protruding block 103, and the plurality of supporting pieces 133 can flexibly expand and contract in a certain range so as to be better attached to the inner side wall of the textile fabric winding drum, so that the protruding block 103 is prevented from being damaged due to rigid contact with the inner side wall of the textile fabric winding drum when being expanded;
in addition, an arc chute 134 is formed between the bottom end of the elastic sheet 132 and the accommodating groove, the arc chute 134 is concentrically arranged with the spindle 100, an elastic top block 135 is arranged in the arc chute 134, and the elastic top block 135 is arc-shaped; the bottom end of the supporting piece 133 located at the elastic top block 135 is supported by the elastic top block, so that the whole elastic top block is prevented from being difficult to return when the elastic sheet 132 is greatly deformed, and the elastic top block 135 can be made of an air bag or solid rubber material.
Example 3: referring to fig. 2 and 5, unlike embodiment 1, in this embodiment, an elastic connection piece 136 is disposed between adjacent protruding blocks 103, the elastic connection piece 136 is bent to form an arc shape, two ends of the elastic connection piece 136 are respectively connected to the protruding blocks 103, and a middle portion of the elastic connection piece 136 is bent outwards; when the adjacent protruding blocks 103 are outwards expanded, a certain gap is formed between the two, foreign matters can be blocked by arranging the elastic connecting pieces 136, meanwhile, the elastic connecting pieces 136 are elastic, when the protruding blocks 103 are outwards expanded, the two ends of the elastic connecting pieces 136 are stretched, acting force towards the mandrel 100 is formed on the protruding blocks 103, and the acting force is overlapped with the acting force exerted by the O-shaped rings 105, so that the protruding blocks 103 can be better contacted with the fixed pushing blocks 101 and the movable pushing blocks 102; particularly if one of the O-rings 105 fails;
further, the elastic connection piece 136 extends along the length direction of the protruding block 103, so as to achieve a better blocking effect, two ends of the elastic connection piece 136 are formed with bending edges 137, the bending edges 137 are arranged at acute angles with the side walls of the protruding block 103, a certain elastic allowance is formed between the bending edges 137 and the elastic connection piece 136, and the protruding block 103 can be prevented from excessively extruding the elastic connection piece 136 when the protruding block 103 is retracted.
In order to avoid dust from falling into the ends between the protruding block 103 and the fixed pushing block 101 and the movable pushing block 102, referring to fig. 2, a telescopic sleeve 138 is sleeved between the ends of the protruding block 103 and the fixed pushing block 101 and the movable pushing block 102 respectively; the telescopic sleeve 138 can be a rubber corrugated sleeve, and can be compressed and stretched to play a sealing role;
one end of the telescopic sleeve 138 extends to the elastic connecting piece 136, and a telescopic folding part 139 is formed on the telescopic sleeve 138 in the horizontal and vertical directions; in this embodiment, the expansion fold 139 is a corrugated portion of the rubber bellows, and by forming the expansion fold 139 in both the horizontal and vertical directions, the bellows 138 can be stretched or folded in time when the bump 103 expands and contracts.
The technical means disclosed by the scheme of the application is not limited to the technical means disclosed by the embodiment, and also comprises the technical scheme formed by any combination of the technical features. It should be noted that modifications and adaptations to the application may occur to one skilled in the art without departing from the principles of the present application and are intended to be within the scope of the present application.
Claims (8)
1. An inflatable shaft for textile fabric conveying equipment is characterized in that: the device comprises a mandrel (100), a fixed push block (101) and a movable push block (102), wherein the fixed push block (101) is penetrated by the mandrel (100) and can axially slide along the mandrel, and the movable push block (102) is connected with the mandrel (100) and is arranged at intervals along the same straight line with the fixed push block (101);
a plurality of protruding blocks (103) are arranged between the fixed pushing block (101) and the movable pushing block (102), and the protruding blocks (103) are annularly arranged around the mandrel (100); an O-shaped ring (105) is sleeved on the outer side among the plurality of protruding blocks (103), action inclined planes (131) are concavely arranged at the two ends of each protruding block (103), a first pressing inclined plane (111) is formed on each fixed pushing block (101) corresponding to one action inclined plane (131) of each protruding block (103), and a second pressing inclined plane (121) is formed on each movable pushing block (102) corresponding to the other action inclined plane (131) of each protruding block (103);
the first pressing inclined surface (111) is rotationally connected with a first gear (112) and a second gear (113) which are meshed with each other, the second pressing inclined surface (121) is rotationally connected with a third gear (122), the third gear (122) and the first gear (112) are respectively meshed with corresponding action inclined surfaces (131) through a rack, a clamping strip (104) is convexly arranged on the mandrel (100) corresponding to each protruding block (103), the clamping strip (104) extends along the axial direction of the mandrel (100), one end of the clamping strip (104) penetrates through the fixed pushing block (101) in a sliding mode, a sliding groove (106) is formed on the protruding block (103) corresponding to the clamping strip (104), the clamping strip (104) is slidably clamped in the sliding groove (106), and the second gear (113) is meshed with the rack of the clamping strip (104) along the length direction of the clamping strip (104);
the diameters of the first gear (112), the second gear (113) and the third gear (122) are the same, and the first gear (112) and the third gear (122) on two sides of the protruding block (103) can synchronously drive the protruding block (103) to expand outwards.
2. An inflatable shaft for a textile fabric conveying apparatus according to claim 1, wherein: the outer peripheral surface of the protruding block (103) is concavely provided with a containing groove, the bottom end of the containing groove is provided with a spring plate (132), the outer wall of the spring plate (132) is uniformly connected with a plurality of supporting pieces (133), and the top end of each supporting piece (133) extends to the outer side of the protruding block (103).
3. An inflatable shaft for a textile fabric conveying apparatus according to claim 2, wherein: an arc-shaped chute (134) is formed between the bottom end of the elastic sheet (132) and the accommodating groove, the arc-shaped chute (134) and the mandrel (100) are concentrically arranged, an elastic top block (135) is arranged in the arc-shaped chute (134), and the elastic top block (135) is arc-shaped.
4. A balloon shaft for a textile fabric conveying apparatus according to claim 2 or 3, characterized in that: a plurality of the support pieces (133) are arranged in parallel at intervals in the radial direction of the spindle (100).
5. An inflatable shaft for a textile fabric conveying apparatus according to claim 1, wherein: elastic connecting pieces (136) are arranged between adjacent protruding blocks (103), the elastic connecting pieces (136) are bent to form an arc shape, two ends of each elastic connecting piece (136) are respectively connected with the protruding blocks (103), and the middle portions of the elastic connecting pieces (136) are outwards bent.
6. An inflatable shaft for a textile fabric conveying apparatus according to claim 5, wherein: the elastic connecting piece (136) extends along the length direction of the protruding block (103), bending edges (137) are formed at two ends of the elastic connecting piece (136), and the bending edges (137) are arranged at acute angles with the side wall of the protruding block (103).
7. The inflatable shaft for textile fabric conveying equipment according to claim 6, wherein: and a telescopic sleeve (138) is sleeved between the end part of the protruding block (103) and the fixed pushing block (101) and the movable pushing block (102) respectively.
8. The inflatable shaft for textile fabric conveying equipment according to claim 7, wherein: one end of the telescopic sleeve (138) extends to the elastic connecting sheet (136), and telescopic folding parts (139) are formed on the telescopic sleeve (138) in the horizontal direction and the vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311178423.8A CN116902703B (en) | 2023-09-13 | 2023-09-13 | Air expansion shaft for textile cloth conveying equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311178423.8A CN116902703B (en) | 2023-09-13 | 2023-09-13 | Air expansion shaft for textile cloth conveying equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116902703A CN116902703A (en) | 2023-10-20 |
| CN116902703B true CN116902703B (en) | 2023-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311178423.8A Active CN116902703B (en) | 2023-09-13 | 2023-09-13 | Air expansion shaft for textile cloth conveying equipment |
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| CN (1) | CN116902703B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117498089B (en) * | 2023-12-25 | 2024-04-02 | 深圳市国威通电子技术有限公司 | Three-core high-voltage connector socket |
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| CN116902703A (en) | 2023-10-20 |
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