CN221304450U - Coil foil winding machine for transformer production - Google Patents
Coil foil winding machine for transformer production Download PDFInfo
- Publication number
- CN221304450U CN221304450U CN202322865229.9U CN202322865229U CN221304450U CN 221304450 U CN221304450 U CN 221304450U CN 202322865229 U CN202322865229 U CN 202322865229U CN 221304450 U CN221304450 U CN 221304450U
- Authority
- CN
- China
- Prior art keywords
- winding
- wall
- coil
- gear
- roller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004804 winding Methods 0.000 title claims abstract description 179
- 239000011888 foil Substances 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 230000000670 limiting effect Effects 0.000 claims abstract description 67
- 230000007246 mechanism Effects 0.000 claims description 8
- 238000009499 grossing Methods 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000012797 qualification Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 12
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Landscapes
- Coils Of Transformers For General Uses (AREA)
Abstract
The utility model provides a coil foil winding machine is used in transformer production, belongs to foil winding machine technical field, including equipment base and set up in the guider in equipment base top middle part, still including setting up in the left winding base in equipment base top, winding base front side is provided with winding part, and winding part outer wall is around being equipped with the coil, and winding part outer wall sets up stop gear when being used for the coil winding. According to the utility model, the limiting plates are arranged on the two sides of the front side of the outer wall of the coil, so that the coil can be limited in the winding of the outer wall of the winding roller, the front-back alignment of the coil is finished in the winding of the outer wall of the winding roller, the occurrence of deflection during the winding of the coil is avoided, the qualification rate of the transformer coil during the winding is effectively ensured, and meanwhile, the adjustment of the distance between the front limiting plate and the rear limiting plate can be realized, so that the limiting plates can be gradually attached to the coil from outside to inside and the side wall of the winding roller to realize the limiting effect, and the limiting requirements of the coils with different widths and the winding roller can be realized.
Description
Technical Field
The utility model belongs to the technical field of foil winding machines, and particularly relates to a coil foil winding machine for transformer production.
Background
The transformer winding refers to a circuit part of a transformer, the turns of the winding are sequentially arranged and continuously wound along the axial direction of the winding, the winding is called a layered winding, copper wires and insulating paper are alternately wound in layers during the production of the transformer winding at the present stage, and the winding needs to be carried out by a foil winding machine. The foil winding machine is special equipment for winding foil coils of the transformer, and winding processing of the winding coils of the transformer is realized by the foil winding machine;
When the existing transformer winding is wound and produced, deflection is easy to occur in the winding process, the edge of a part of the coil is led to protrude outwards after the coil is wound, the edge of the coil is not tidy enough, workers are required to carry out subsequent adjustment, manual workload and working steps are increased, and based on the fact, the coil foil winding machine for the transformer production, which can limit the coil in the winding process, is particularly necessary.
Disclosure of utility model
Aiming at the problems that the prior transformer winding is easy to generate deflection in the winding process and the edges of partial coils stretch out outwards after the coils are wound, the edges of the coils are not tidy enough and subsequent adjustment is needed by staff. The specific technical scheme is as follows:
The coil foil winding machine for transformer production comprises an equipment base, a guide device arranged in the middle of the top end of the equipment base, a winding base arranged on the left side of the top end of the equipment base, a winding part arranged on the front side of the winding base, a coil wound on the outer wall of the winding part, and a limiting mechanism arranged on the outer wall of the winding part and used for winding the coil;
the limiting mechanism comprises a fixed seat arranged on the left side wall of the guide device, and further comprises a screw rod rotatably connected to the middle of the fixed seat, a second motor is arranged on the front side wall of the fixed seat, the output end of the second motor is connected with the screw rod, threads with opposite directions are symmetrically arranged on the front side and the rear side of the outer wall of the screw rod, two movable seats are respectively arranged on the front side and the rear side of the outer wall of the screw rod in a movable mode in a sleeved mode, the outer wall of the movable seat penetrates through and is provided with a threaded hole used for penetrating screw threads, the left side wall of the movable seat is respectively connected with a limiting plate, limiting rods are respectively arranged at the upper end and the lower end of the inner side of the fixed seat, and the movable seats are respectively and slidably sleeved on the outer wall of the limiting rods.
In the above technical scheme, two opposite sides of the outer wall of the limiting plate are respectively attached to the front side wall and the rear side wall of the coil.
In the above technical scheme, the winding part comprises a driving part and a winding part, and the winding part is driven by the driving part to realize winding of the coil.
In the above technical scheme, the drive part including install in the first motor of winding base back lateral wall, still including connect in the pivot of first motor output, just the pivot with winding base inner wall front side rotates to be connected, first gear is installed to the pivot outer wall, winding base inner wall rear side rotates to be connected with the winding axle, the second gear is installed to the winding axle outer wall, just the second gear lateral wall with first gear lateral wall meshing is connected.
In the above technical scheme, the gear diameter of the first gear is smaller than the gear diameter of the second gear.
In the above technical scheme, the winding part comprises a winding roller sleeved on the front side of the outer wall of the winding shaft, positioning seats sleeved on the front side and the rear side of the outer wall of the winding roller, and the two positioning seats are connected with the outer wall of the winding roller through bolts respectively.
In the above technical scheme, the winding shaft is rectangular.
In the technical scheme, an unreeling roller is rotatably arranged on the right side of the equipment base, the coil is unreeled through the rotary unreeled roller, and a smoothing component is arranged on the outer wall of the unreeled roller;
The smoothing component comprises a bracket arranged on the right side of the top end of the equipment base, and further comprises a rotating rod rotatably arranged at the left end part of the outer wall of the bracket, and a guide wheel is arranged on the outer wall of the rotating rod in a rolling manner.
Compared with the prior art, the coil foil winding machine for transformer production has the beneficial effects that:
1. Aiming at the problems that when the existing transformer winding is wound and produced, deflection is easy to occur in the winding process, so that the edge of part of the coil protrudes outwards after the coil is wound, the edge of the coil is not tidy enough, and subsequent adjustment is required by staff;
2. According to the utility model, through the arrangement of the second motor, the lead screw and the limiting rod, the front and rear moving seats and the limiting plates can be driven to synchronously move towards the middle or the outer side, so that the adjustment of the distance between the front and rear limiting plates is realized, the limiting plates can be driven to gradually attach to the coil from the outer side to the inner side and realize the limiting effect on the side wall of the winding roller, the limiting requirements on the coils with different widths and the winding roller can be realized, the adjustability is strong, and the application range is wide;
3. According to the utility model, the positioning seat is arranged to position the winding roller on the outer wall of the winding shaft, and the first motor, the rotating shaft, the first gear and the second gear are arranged to ensure that the winding shaft rotates circumferentially so as to drive the winding roller to rotate for winding the coil;
4. According to the utility model, the first gear with smaller diameter drives the second gear with larger diameter to rotate, so that the torque of the winding shaft can be increased, and the winding shaft is promoted to work more efficiently;
5. According to the coil winding device, the support, the rotating rod and the guide wheel are arranged, so that the coil before winding can be subjected to smoothing pretreatment, and the phenomenon that the winding effect and the performance are affected due to wrinkles in the winding process of the coil is avoided;
In summary, the limiting plates are arranged on two sides of the front side of the outer wall of the coil, so that the coil can be limited in the winding of the outer wall of the winding roller, the coil is enabled to be aligned front and back to be wound on the outer wall of the winding roller, deflection during winding of the coil is avoided, the qualification rate of the transformer coil during winding is effectively guaranteed, manual subsequent adjustment is not needed, production steps are saved, and meanwhile, the adjustment of the distance between the front limiting plate and the rear limiting plate can be realized, and therefore, the limiting plates can be enabled to be gradually attached to the coil and the side wall of the winding roller from outside to inside to realize limiting effects, limit requirements on the coils with different widths and the winding roller can be met, the adjustability is high, and the application range is wide.
Drawings
FIG. 1 is a front view of a limiting plate of the present utility model;
FIG. 2 is a front cross-sectional view of the lead screw of the present utility model;
FIG. 3 is a front cross-sectional view of the winding shaft of the present utility model;
FIG. 4 is a top cross-sectional view of the winding base of the present utility model;
In fig. 1 to 4, 1, a device base, 2, a guiding device, 3, a winding base, 4, a first motor, 5, a rotating shaft, 6, a first gear, 7, a winding shaft, 8, a second gear, 9, a winding roller, 10, a positioning seat, 11, a coil, 12, a fixed seat, 13, a screw, 14, a second motor, 15, a limiting rod, 16, a movable seat, 17, a limiting plate, 18, an unreeling roller, 19, a bracket, 20, a rotating rod, 21 and a guide wheel.
Detailed Description
The utility model will be further described with reference to specific embodiments and figures 1-4, but the utility model is not limited to these embodiments.
Aiming at the problems that when the existing transformer winding in the prior art is subjected to winding production, deflection is easy to occur in the winding process, the edge of a part of the coil protrudes outwards after winding of the coil, the edge of the coil is not tidy enough, and subsequent adjustment is required by workers, referring to the problems shown in fig. 1-4, a coil foil winding machine for transformer production is proposed, the coil foil winding machine comprises an equipment base 1 and a guide device 2 arranged in the middle of the top end of the equipment base 1, the guide device 2 is equipment in the prior art, can complete the conveying function of the coil when the transformer winding is wound, respectively guides and conveys the coil and insulating paper for subsequent winding, and further comprises a winding base 3 arranged on the left side of the top end of the equipment base 1, a winding part is arranged on the front side of the winding base 3, a coil 11 is wound on the outer wall of the winding part, a limiting mechanism used for the winding of the coil 11 is arranged on the outer wall of the winding part, the limiting part is used for limiting the coil 11 when the outer wall of the winding part is wound, and the coil 11 is prevented from deflecting when the coil 11 is wound;
The limiting mechanism is described below, referring to fig. 2-4, the limiting mechanism comprises a fixed seat 12 installed on the left side wall of a guiding device 2, the fixed seat 12 provides support for the installation of other components, the limiting mechanism further comprises a screw rod 13 rotatably connected to the middle of the fixed seat 12 through a bearing, the front side wall of the fixed seat 12 is provided with a second motor 14, the output end of the second motor 14 is connected with the screw rod 13 through a coupling, the screw rod 13 is driven to rotate through the driving of the second motor 14, threads with opposite directions are symmetrically arranged on the front side and the rear side of the outer wall of the screw rod 13, two movable seats 16 are respectively movably sleeved on the front side and the rear side of the outer wall of the screw rod 13, the two movable seats 16 are driven to synchronously move inwards through the rotation of the screw rod 13, threaded holes for the threads of the screw rod 13 are formed in penetrating through the outer walls of the two movable seats 16, limiting plates 17 are respectively connected to the left side walls of the two movable seats 16, the limiting plates 17 are driven to synchronously move inwards, the limiting plates 17 are gradually attached to the side walls of the coil 11, limiting rods 15 are respectively installed on the upper end and lower end of the inner sides of the fixed seat 12, the two movable seats 16 are respectively arranged on the outer walls of the limiting rods 15, and the two movable seats 16 are respectively arranged on the outer walls of the limiting rods 15 in a sliding mode, and the outer walls 15 can not move along the limiting rods 15, and can move accurately, and can move along the limiting rods 16 and move along the directions when the limiting rods are not move along the moving directions of the limiting rods 15; the opposite sides of the outer walls of the two limiting plates 17 are respectively attached to the front and rear side walls of the coil 11, and the positions of the front and rear side walls of the coil 11 can be limited in the winding process of the coil 11 through the limiting action of the limiting plates 17, so that deflection is avoided;
The lead screw 13 is driven to rotate by the opened second motor 14, so that the two movable seats 16 on the front side and the rear side are respectively driven to synchronously move inwards along the outer walls of the two limiting rods 15, and the front limiting plate 17 and the rear limiting plate 17 are driven to synchronously move towards the middle until the opposite sides of the outer walls of the front limiting plate 17 and the rear limiting plate 17 are respectively attached to the front side wall and the rear side wall of the coil 11, and limiting in the winding process of the coil 11 is realized.
Referring to fig. 3 to 4, the winding part comprises a driving part and a winding part, and the winding part is driven by the driving part to wind the coil 11; the driving part comprises a first motor 4 arranged on the rear side wall of the winding base 3, and further comprises a rotating shaft 5 connected to the output end of the first motor 4, the rotating shaft 5 is rotationally connected with the front side of the inner wall of the winding base 3 through a bearing, a first gear 6 is arranged on the outer wall of the rotating shaft 5, the rotating shaft 5 and the first gear 6 can be driven to rotate through the opened first motor 4, a winding shaft 7 is rotationally connected to the rear side of the inner wall of the winding base 3 through the bearing, a second gear 8 is arranged on the outer wall of the winding shaft 7, the side wall of the second gear 8 is in meshed connection with the side wall of the first gear 6, and the second gear 8 is driven to rotate through the rotating first gear 6 so as to drive the winding shaft 7 to rotate; the gear diameter of the first gear 6 is smaller than that of the second gear 8, and the first gear 6 with smaller diameter drives the second gear 8 with larger diameter to rotate, so that the torque of the winding shaft 7 can be increased, and the winding shaft 7 is promoted to work more efficiently; referring to fig. 3, the winding part comprises a winding roller 9 sleeved on the front side of the outer wall of the winding shaft 7, positioning seats 10 sleeved on the front side and the rear side of the outer wall of the winding roller 9, the two positioning seats 10 are respectively connected with the outer wall of the winding roller 9 through bolts, and positioning and mounting of the winding roller 9 on the outer wall of the winding shaft 7 are realized through the positioning seats 10; in order to ensure that the winding shaft 7 and the winding roller 9 cannot rotate relatively in the rotating process, the winding shaft 7 is rectangular;
After the end part of the coil 11 is fixed on the outer wall of the winding roller 9, the rotating shaft 5 and the first gear 6 are driven to rotate by virtue of the opened first motor 4, and then the second gear 8 which is in meshed connection with the outer wall is driven to rotate the winding shaft 7, and as the winding roller 9 is assembled on the outer wall of the winding shaft 7 by virtue of the positioning seat 10, the winding roller 9 is driven to rotate anticlockwise circumferentially by virtue of the rotating winding shaft 7, so that the coil 11 is gradually wound on the outer wall of the winding roller 9, and a transformer winding is formed.
In addition, as shown in fig. 1-2, an unreeling roller 18 is rotatably arranged on the right side of the equipment base 1 through a bearing, the coil 11 is unreeled through the rotary unreeling roller 18, and a smoothing component is arranged on the outer wall of the unreeling roller 18; the smoothing component comprises a bracket 19 arranged on the right side of the top end of the equipment base 1, and also comprises a rotating rod 20 rotatably arranged on the left end part of the outer wall of the bracket 19, wherein a guide wheel 21 is arranged on the outer wall of the rotating rod 20 in a rolling way;
During the unwinding process of the unwinding roller 18, the coil 11 can be smoothed and pretreated during the unwinding process by means of the combined action of the rotatably arranged guide wheel 21 and the outer wall of the unwinding roller 18.
The specific principle of winding limit of the coil foil winding machine for transformer production in the embodiment is as follows:
The lead screw 13 is driven to rotate by the opened second motor 14, so that the two moving seats 16 at the front side and the rear side are respectively driven to synchronously move inwards along the outer walls of the two limiting rods 15, and the front limiting plate 17 and the rear limiting plate 17 are driven to synchronously move towards the middle until the opposite sides of the outer walls of the front limiting plate 17 and the rear limiting plate 17 are respectively attached to the front side wall and the rear side wall of the winding roller 9 and the coil 11, and the limitation of the coil 11 in the winding process of the outer wall of the winding roller 9 is realized;
After the end part of the coil 11 is fixed on the outer wall of the winding roller 9, the rotating shaft 5 and the first gear 6 are driven to rotate by virtue of the opened first motor 4, and then the second gear 8 which is in meshed connection with the outer wall is driven to rotate the winding shaft 7, and as the winding roller 9 is assembled on the outer wall of the winding shaft 7 through the positioning seat 10, the winding roller 9 is driven to rotate anticlockwise circumferentially by virtue of the rotating winding shaft 7, so that the coil 11 is gradually wound on the outer wall of the winding roller 9, and a transformer winding is formed;
according to the utility model, the limiting plates 17 are arranged on the two sides of the front side of the outer wall of the coil 11, so that the coil 11 can be limited in the winding of the outer wall of the winding roller 9, the front-back alignment of the coil 11 is finished in the winding of the outer wall of the winding roller 9, the deflection of the coil 11 during winding is avoided, the qualification rate of the transformer coil during winding is effectively ensured, the subsequent manual adjustment is not needed, the production steps are saved, and meanwhile, the adjustment of the distance between the front limiting plate 17 and the rear limiting plate 17 can be realized, the limiting plates 17 can be gradually attached to the coil 11 and the side wall of the winding roller 9 from outside to inside, the limiting requirements on the coils 11 with different widths and the winding roller 9 can be realized, the adjustability is strong, and the application range is wide.
The above description is only of the preferred embodiments 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 protection scope of the present utility model.
Claims (8)
1. The coil foil winding machine for transformer production comprises an equipment base (1), a guide device (2) arranged in the middle of the top end of the equipment base (1), and a winding base (3) arranged on the left side of the top end of the equipment base (1), wherein a winding part is arranged on the front side of the winding base (3), a coil (11) is wound on the outer wall of the winding part, and the coil foil winding machine is characterized in that a limiting mechanism used for winding the coil (11) is arranged on the outer wall of the winding part;
The limiting mechanism comprises a fixed seat (12) arranged on the left side wall of the guide device (2), and further comprises a screw rod (13) rotatably connected to the middle of the fixed seat (12), a second motor (14) is arranged on the front side wall of the fixed seat (12), the output end of the second motor (14) is connected with the screw rod (13), threads with opposite directions are symmetrically arranged on the front side and the rear side of the outer wall of the screw rod (13), two movable seats (16) are respectively arranged on the front side and the rear side of the outer wall of the screw rod (13) in a movable mode, threaded holes for the screw rod (13) to penetrate through are formed in the outer wall of the movable seats (16), limiting plates (17) are respectively connected to the left side wall of the movable seats (16), limiting rods (15) are respectively arranged on the upper end and the lower end of the inner side of the fixed seat (12), and the two movable seats (16) are respectively and slidably sleeved on the outer wall of the limiting rods (15).
2. A coil foil winder for transformer production according to claim 1, wherein: opposite sides of the outer walls of the two limiting plates (17) are respectively attached to the front side wall and the rear side wall of the coil (11).
3. A coil foil winder for transformer production according to claim 2, wherein: the winding part comprises a driving part and a winding part, and the winding part is driven by the driving part to realize winding of the coil (11).
4. A coil foil winder for transformer production according to claim 3, wherein: the drive part is including installing in first motor (4) of winding base (3) back lateral wall, still including connect in pivot (5) of first motor (4) output, just pivot (5) with winding base (3) inner wall front side rotates and is connected, first gear (6) are installed to pivot (5) outer wall, winding base (3) inner wall rear side rotates and is connected with winding shaft (7), second gear (8) are installed to winding shaft (7) outer wall, just second gear (8) lateral wall with first gear (6) lateral wall meshing is connected.
5. The coil foil winder for transformer production of claim 4, wherein: the gear diameter of the first gear (6) is smaller than the gear diameter of the second gear (8).
6. The coil foil winder for transformer production of claim 5, wherein: the winding part comprises a winding roller (9) sleeved on the front side of the outer wall of the winding shaft (7), positioning seats (10) sleeved on the front side and the rear side of the outer wall of the winding roller (9) are arranged, and the two positioning seats (10) are connected with the outer wall of the winding roller (9) through bolts respectively.
7. The coil foil winder for transformer production of claim 6, wherein: the winding shaft (7) is rectangular.
8. The coil foil winder for transformer production of claim 7, wherein: an unreeling roller (18) is rotatably arranged on the right side of the equipment base (1), the coil (11) is unreeled through the rotary unreeled roller (18), and a smoothing component is arranged on the outer wall of the unreeled roller (18);
The smoothing component comprises a support (19) arranged on the right side of the top end of the equipment base (1), and further comprises a rotating rod (20) rotatably arranged at the left end part of the outer wall of the support (19), and guide wheels (21) are arranged on the outer wall of the rotating rod (20) in a rolling mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322865229.9U CN221304450U (en) | 2023-10-25 | 2023-10-25 | Coil foil winding machine for transformer production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322865229.9U CN221304450U (en) | 2023-10-25 | 2023-10-25 | Coil foil winding machine for transformer production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221304450U true CN221304450U (en) | 2024-07-09 |
Family
ID=91742043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322865229.9U Active CN221304450U (en) | 2023-10-25 | 2023-10-25 | Coil foil winding machine for transformer production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221304450U (en) |
-
2023
- 2023-10-25 CN CN202322865229.9U patent/CN221304450U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201732680U (en) | Full-automatic double-head air-core coil winding machine | |
| CN112233900A (en) | Winding device of wire and foil integrated winding machine of amorphous three-dimensional wound core transformer and operation method of winding device | |
| CN110077912A (en) | A kind of clothes processing cloth Winding Machine | |
| CN221304450U (en) | Coil foil winding machine for transformer production | |
| CN104934216A (en) | Special-shaped coil numerical control winding machine | |
| CN219792033U (en) | Film rolling machine structure for sheet molding compound | |
| CN204992982U (en) | A strip winding mechanism that is used for belting machine of high -speed railway traction motor coil | |
| CN213935945U (en) | Winding device of integrated winding machine for amorphous three-dimensional wound core transformer wire foil | |
| CN209859703U (en) | High-speed copper strip shielding wrapping machine for cable | |
| CN205035020U (en) | Solid reel simply unreels arresting gear | |
| CN219362666U (en) | A paper winding roller quick replacement mechanism for production of spool body paper | |
| CN206997400U (en) | A kind of ironing roller device that can control ironing point | |
| CN207222621U (en) | A kind of roll bending unwinding device | |
| CN207418022U (en) | A kind of winding frock integrated for cable | |
| CN216403451U (en) | Deviation correcting device for winding and unwinding machine | |
| CN201390028Y (en) | Aluminum scrap film winding device used for automatic hot stamping machine | |
| CN214003543U (en) | Double-servo rewinding machine | |
| CN210412005U (en) | Automatic flatting mill | |
| CN210418704U (en) | Full-automatic membrane silk coiling mechanism | |
| CN206814117U (en) | A kind of fully automatic wire winding machine of environment-friendly electric wire | |
| CN215478699U (en) | Tail wheel guider | |
| CN204651164U (en) | Special-shaped coils numerical control filament winder | |
| CN219225975U (en) | Paper wrapping machine is used in electric wire production convenient to change band | |
| CN216360303U (en) | Cable traction machine guider | |
| CN221216512U (en) | Automatic rubber rolling and feeding guide mechanism for rubber fender |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |