CN211846098U - Clutch device of stay tube twisting machine and automatic return trolley - Google Patents
Clutch device of stay tube twisting machine and automatic return trolley Download PDFInfo
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- CN211846098U CN211846098U CN202020168008.XU CN202020168008U CN211846098U CN 211846098 U CN211846098 U CN 211846098U CN 202020168008 U CN202020168008 U CN 202020168008U CN 211846098 U CN211846098 U CN 211846098U
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- 229910052742 iron Inorganic materials 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 12
- 238000013461 design Methods 0.000 description 11
- 230000033001 locomotion Effects 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- 230000002349 favourable effect Effects 0.000 description 5
- 238000003754 machining Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of iron art processing equipment, a machine clutch and automatic return stroke dolly are twisted to trombone slide is proposed, including the axis of rotation, part one sets up and rotates along with it in the axis of rotation, and first drive tooth is a plurality of circumference setting on part one, and every first drive tooth increases to thickness gradually along first revolving, and the clutch spare sets up in one side of part one, and the second drives the tooth setting on the side of clutch spare, and opposite direction with first drive tooth, and leave the gap between the tooth with first drive. Still provide an automatic return stroke dolly of machine is twisted to trombone slide, including clutch, automobile body, power device drive axis of rotation rotates, and the bellying sets up on the side of clutch, and the friction surface sets up on the bellying, and the recess is the annular of establishing on the wheel, and the bellying setting is in the recess, and first drive tooth is rotated to the rotation along the second and is promoted first drive tooth and remove, makes friction surface and recess inner wall contact, drives the wheel rotation. Through above-mentioned technical scheme, the problem that wastes time and energy among the prior art, inefficiency has been solved.
Description
Technical Field
The utility model belongs to the technical field of iron art processing equipment, a machine clutch and automatic return stroke dolly are twisted to trombone slide is related to.
Background
The hollow pipe twisting machine is mainly used for bending materials such as steel pipes and plays an important role in laying and repairing pipes in the aspects of boilers, bridges, ships, furniture, decoration and the like.
The hollow pipe twisting machine mainly comprises a frame and a twisting device, the twisting device comprises a first die holder, a second die holder, a first groove and a second groove, the first die holder and the second die holder are symmetrically arranged and are connected with each other, a first channel is formed by splicing the first groove in the first die holder and the first groove in the second die holder, the surface of the first die holder and the surface of the second die holder are provided with mounting grooves, clutch wheels are arranged in the mounting grooves, a pressing mechanism is arranged outside the twisting device and is used for pressing the clutch wheels to enable the first die holder and the second die holder to be spliced together, a driving device is connected with the twisting device and is used for driving the twisting device to rotate, and the traction device is arranged on one side of the twisting device and is used for drawing the pipes twisted by the twisting device. The traction device comprises a tractor, the tractor is movably arranged on the rack through a chain transmission mechanism, and the tractor drives the pipe to move forwards. This equipment can be applicable to twisting of the tubular product of multiple diameter and spend, need not change production facility or mould to very big improvement production efficiency, but drive tubular product forward motion back under the effect of chain at the tractor, still need manually pull back the normal position with the tractor, carry out twisting of next empty pipe and spend and advance, this operation is wasted time and energy, and is inefficient, very big hindrance the empty pipe development process of twisting the machine of spending.
SUMMERY OF THE UTILITY MODEL
The utility model provides a machine clutch and automatic return stroke dolly are twisted to trombone slide has solved the manual return stroke of return stroke dolly among the prior art, wastes time and energy, problem of inefficiency.
The technical scheme of the utility model is realized like this:
a clutch device comprises
A rotating shaft is arranged at the position of the rotating shaft,
a first component which is arranged on the rotating shaft and rotates along with the rotating shaft,
the first driving teeth are a plurality of first driving teeth which are circumferentially arranged on the first part, the thickness of each first driving tooth is gradually increased along a first rotating direction,
a clutch disposed on one side of the first component,
the second driving teeth are circumferentially arranged on one side surface of the clutch piece, the thickness of each second driving tooth is gradually increased along a second rotation direction, the second rotation direction is opposite to the first rotation direction, a gap is reserved between each second driving tooth and each first driving tooth,
and the friction surface is arranged on the side surface of the clutch piece far away from the component I and is used for driving wheels of the trolley to rotate.
An automatic return trolley of a pipe-pulling and twisting machine comprises a clutch device and further comprises
The vehicle body is provided with a plurality of wheels,
the power device is arranged on the vehicle body, the output end of the power device drives the rotating shaft to rotate,
the wheel is rotatably arranged on the rotating shaft and is positioned on one side of the clutch piece,
a boss disposed on a side of the clutch member distal from the member, the friction surface disposed on a side surface of the boss, the friction surface being a conical surface,
the groove is annular and is arranged on the wheel, the lug boss is arranged in the groove, the space of the groove is larger than the volume of the lug boss,
the first driving teeth rotate along a second rotating direction to push the first driving teeth to move, so that the friction surfaces are contacted with the inner wall of the groove, and the wheels are driven to rotate.
As a further technical proposal, the wheels are gears,
also comprises
The rack is arranged beside the vehicle body, and the wheels are meshed with the rack.
As a further technical solution, the inner surface of the groove close to the friction surface is a conical surface.
As a further technical proposal, the method also comprises
The locking part is hinged with the vehicle body and used for locking the vehicle body on a chain transmission mechanism of the stay tube twisting machine.
As a further technical solution, a bearing is provided between the wheel and the rotating shaft.
The utility model discloses a theory of operation and beneficial effect do:
1. the utility model discloses in drive the part when the axis of rotation drives the part first soon to rotating earlier on, first drive tooth and second drive the tooth and coordinate completely, make the position that first drive tooth thickness is little and the position laminating that the second drives tooth thickness is big, the position that first drive tooth thickness is big drives the position laminating that tooth thickness is little with the second, thereby make first drive tooth and second drive the gap between the tooth and reduce, even the clutch draws close the rotation to the direction of part one, thereby make the friction surface on the clutch side break away from with the wheel of return stroke dolly, avoid hindering the dolly to drive the process that tubular product gos forward.
When the rotating shaft drives the component to rotate towards the second rotating direction, the second driving tooth on the clutch piece gradually moves towards one end with large thickness along one end with small thickness of the first driving tooth along with the rotation of the component I, so that the clutch piece is pushed to gradually move towards the direction far away from the component I along the rotating shaft, the friction surface is contacted with the wheel of the return trolley, and the wheel is driven to rotate through friction force to finish the return stroke. The utility model discloses a first drive tooth is controlled the position of separation and reunion piece with the cooperation relation of second drive tooth to control wheel and clutch and power device's drive relation realizes that the dolly will be a tubular product pulling the automation after a certain position and return journey, reasonable in design, the practicality is strong, increases machining efficiency, realizes automaticly, labour saving and time saving. The thickness here means the thickness in the direction of the rotation axis.
2. The utility model discloses in-process that dolly pulling tubular product gos forward, the wheel is constantly to rotating to first soon along with the motion of automobile body, power device does not start this moment, if friction surface on the bellying is in contact state with the recess lateral wall on the wheel this moment, the wheel can drive the clutch spare to first trend of revolving to the pivoted, thereby make the second on the clutch spare drive the tooth and cooperate completely with the first drive tooth on the part one, thereby make the clutch spare to the direction removal that is close to part one, realize the separation of friction surface and recess inner wall, thereby make the setting of bellying not influence the rotation of wheel, make wheel and part one rotate with the clutch spare is asynchronous, accomplish the working process reasonable in design that dolly pulling tubular product gos forward, avoid power device's damage, reinforcing life.
In the process of the trolley returning, the power device is started, the power device drives the rotating shaft to rotate towards the second, the rotating shaft drives the driving part to rotate towards the second, the second on the clutch part drives the teeth to gradually move towards the end with large thickness along the end with small thickness of the first driving teeth along with the rotation of the first part, so that the clutch part is pushed to gradually move towards the direction away from the first part along the rotating shaft, the bulge part moves towards the direction away from the first part, the friction surface is in contact with the wheels of the return trolley, the wheels are driven to rotate through friction force, and the returning is completed. The utility model discloses a first drive tooth is controlled the position of separation and reunion piece with the cooperation relation of second drive tooth to control wheel and clutch and power device's drive relation realizes that the dolly will be a tubular product pulling the automation after a certain position and return journey, reasonable in design, the practicality is strong, increases machining efficiency, realizes automaticly, labour saving and time saving.
3. The utility model discloses well wheel is the gear, and gear and rack toothing makes the return stroke dolly realize through the gear at the meshing motion of rack when returning to the operation orbit of restriction dolly guarantees the stability of dolly operation simultaneously, reinforcing reliability.
4. The utility model discloses the internal surface that well recess is close to the friction surface is the conical surface, and inclination is unanimous with the inclination of friction surface, is favorable to cooperating with the friction surface perfection, area of contact when increase and friction surface contact, increase frictional force to drive gear revolve, reasonable in design, the good reliability.
5. The utility model discloses well retaining member specifically can be for locking the hook, colludes when chain drive when the locking hook colludes on chain drive, and the return stroke dolly will be along with the motion of chain drive to can make the tubular product of locking on the locking seat along with the forward motion, when the return stroke dolly advances fixed position, loosen the locking hook, make the return stroke dolly break away from with chain drive, can return to the normal position with the return stroke dolly, the design is simple, the operation of being convenient for, the practicality is strong.
6. The utility model discloses be provided with the bearing between well wheel and the axis of rotation, be favorable to realizing the asynchronous motion when pulling tubular product between wheel and the axis of rotation, be favorable to strengthening the life of wheel simultaneously, reasonable in design, the good reliability.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic view of the clutch device of the present invention;
FIG. 2 is a schematic structural diagram of the components of the present invention;
FIG. 3 is a schematic cross-sectional view of a component of the present invention;
FIG. 4 is a schematic view of the clutch member of the present invention;
FIG. 5 is a schematic view of the structure of the wheel of the present invention;
fig. 6 is a schematic view of the rack structure of the present invention;
FIG. 7 is a schematic structural view of the return trolley of the present invention;
in the figure: 1-rotating shaft, 2-component one, 3-first driving gear, 4-clutch, 5-second driving gear, 6-friction surface, 7-vehicle body, 8-power device, 9-wheel, 10-bulge, 11-groove, 12-rack, 13-locking piece and 14-bearing.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in figures 1-7 of the drawings,
the utility model provides a clutch device, include
The rotation axis 1 is rotated in the direction of the axis,
a first part 2, the first part 2 is arranged on the rotating shaft 1 to rotate along with the rotating shaft,
the first driving teeth 3 are a plurality of first driving teeth 3 which are circumferentially arranged on the first part 2, the thickness of each first driving tooth 3 is gradually increased along a first rotation direction,
a clutch 4, the clutch 4 is arranged on one side of the first component 2,
the second driving teeth 5 are a plurality of second driving teeth 5 which are circumferentially arranged on one side surface of the clutch piece 4, the thickness of each second driving tooth 5 is gradually increased along a second rotation direction, the second rotation direction is opposite to the first rotation direction, a gap is reserved between each second driving tooth 5 and the corresponding first driving tooth 3,
the friction surface 6 and the side surface of the clutch part 4 far away from the part I2 are provided with friction surfaces 6 for driving wheels 9 of the trolley to rotate.
In this embodiment, when the first component 2 is rotated in the first rotation direction by the rotating shaft 1, the first driving tooth 3 is completely matched with the second driving tooth 5, so that the position with small thickness of the first driving tooth 3 is attached to the position with large thickness of the second driving tooth 5, and the position with large thickness of the first driving tooth 3 is attached to the position with small thickness of the second driving tooth 5, thereby reducing the gap between the first driving tooth 3 and the second driving tooth 5, even if the clutch member 4 is moved close to the first component 2, so that the friction surface 6 on the side surface of the clutch member 4 is separated from the wheel 9 of the return trolley, and avoiding the process of blocking the trolley to drive the pipe to advance.
When the rotating shaft 1 drives the first part 2 to rotate towards the second rotating direction, the second driving teeth 5 on the clutch part 4 gradually move towards one end with large thickness along one end with small thickness of the first driving teeth 3 along with the rotation of the first part 2, so that the clutch part 4 is pushed to gradually move towards the direction far away from the first part 2 along the rotating shaft 1, the friction surface 6 is contacted with the wheel 9 of the return trolley, the wheel 9 is driven to rotate through friction force, and the return process is completed. The utility model discloses a first drive tooth 3 drives the cooperation relation of tooth 5 with the second, controls the position of clutch 4 to control wheel 9 and clutch and power device 8's drive relation realizes that the dolly stimulates a tubular product to the automatic back stroke behind the certain position, reasonable in design, and the practicality is strong, increases machining efficiency, realizes automaticly labour saving and time saving. The thickness here means the thickness in the direction of the rotation axis 1.
In the figure, the direction A is the first rotation direction, and the direction B is the second rotation direction.
The utility model also provides an automatic return stroke dolly of machine is twisted to trombone slide, including clutch, still include
The body 7 of the vehicle is provided with a plurality of wheels,
a power device 8, the power device 8 is arranged on the vehicle body 7, the output end of the power device 8 drives the rotating shaft 1 to rotate,
a wheel 9, the wheel 9 is rotatably arranged on the rotating shaft 1 and is positioned at one side of the clutch piece 4,
a projection 10, the projection 10 being arranged on the side of the clutch part 4 facing away from the part one 2, the friction surface 6 being arranged on the side surface of the projection 10, the friction surface 6 being a conical surface,
a groove 11, the groove 11 is annular and is arranged on the wheel 9, a convex part 10 is arranged in the groove 11, the space of the groove 11 is larger than the volume of the convex part 10,
the first driving tooth 3 rotates along the second rotation direction to push the first driving tooth 3 to move, so that the friction surface 6 is contacted with the inner wall of the groove 11 to drive the wheel 9 to rotate.
In the process that the pipe is pulled to advance by the trolley, the wheel 9 continuously rotates towards the first rotation direction along with the movement of the trolley body 7, at the moment, the power device 8 is not started, if the friction surface 6 on the protruding part 10 is in a contact state with the side wall of the groove 11 on the wheel 9 at the moment, the wheel 9 can drive the clutch part 4 to rotate towards the first rotation direction, so that the second driving tooth 5 on the clutch part 4 is completely matched with the first driving tooth 3 on the part I2, so that the clutch part 4 moves towards the direction close to the part I2, the separation of the friction surface 6 from the inner wall of the groove 11 is realized, so that the rotation of the wheel 9 is not influenced by the arrangement of the protruding part 10, the wheel 9, the part I2 and the clutch part 4 rotate asynchronously, the working process that the pipe is pulled to advance by the trolley is reasonable in design, the damage of the power device.
In the process of the trolley returning, the power device 8 is started, the power device 8 drives the rotating shaft 1 to rotate towards the second, the rotating shaft 1 drives the driving part I2 to rotate towards the second, the second driving teeth 5 on the clutch part 4 gradually move towards the end with large thickness along the end with small thickness of the first driving teeth 3 along the rotation of the part I2, thereby the clutch part 4 is gradually moved towards the direction far away from the part I2 along the rotating shaft 1, the bulge part 10 is moved towards the direction far away from the part I2, the friction surface 6 is contacted with the wheel 9 of the return trolley, the wheel 9 is driven to rotate by friction force, and the returning is completed. The utility model discloses a first drive tooth 3 drives the cooperation relation of tooth 5 with the second, controls the position of clutch 4 to control wheel 9 and clutch and power device 8's drive relation realizes that the dolly stimulates a tubular product to the automatic back stroke behind the certain position, reasonable in design, and the practicality is strong, increases machining efficiency, realizes automaticly labour saving and time saving.
Further, the wheels 9 are gears,
also comprises
And a rack 12, wherein the rack 12 is arranged beside the vehicle body 7, and the wheels 9 are meshed with the rack 12.
In the embodiment, the wheels 9 are gears which are meshed with the racks 12, so that the return trolley can be realized through the meshing motion of the gears on the racks 12 during the return process, the running track of the trolley is limited, the running stability of the trolley is ensured, and the reliability is enhanced.
Further, the inner surface of the groove 11 adjacent to the friction surface 6 is a tapered surface.
In this embodiment, the inner surface of the groove 11 close to the friction surface 6 is a conical surface, and the inclination angle is consistent with that of the friction surface 6, so that the groove is in perfect fit with the friction surface 6, the contact area when the groove is in contact with the friction surface 6 is increased, and the friction force is increased, so that the gear is driven to rotate.
Further, also comprises
And the locking part 13 is hinged with the vehicle body 7, and is used for locking the vehicle body 7 on a chain transmission mechanism of the pipe drawing and twisting machine.
Locking member 13 specifically can be the locking hook in this embodiment, colludes when the locking hook on chain drive, and the return stroke dolly will be along with chain drive motion to can make the tubular product of locking on the locking seat along with the forward motion, when the return stroke dolly advances fixed position, loosen the locking hook, make the return stroke dolly break away from with chain drive, can return to the normal position with the return stroke dolly, and the design is simple, the operation of being convenient for, and the practicality is strong.
Further, a bearing 14 is provided between the wheel 9 and the rotating shaft 1.
Be provided with bearing 14 between wheel 9 and the axis of rotation 1 in this embodiment, be favorable to realizing the asynchronous motion when pulling tubular product between wheel 9 and the axis of rotation 1, be favorable to strengthening wheel 9's life simultaneously, reasonable in design, the good reliability.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A clutch device is characterized by comprising
A rotating shaft (1) is arranged on the rotating shaft,
a first part (2), which first part (2) is arranged on the rotary shaft (1) and rotates with the rotary shaft,
the first driving teeth (3) are a plurality of first driving teeth (3) circumferentially arranged on the first component (2), the thickness of each first driving tooth (3) is gradually increased along a first rotation direction,
a clutch (4), the clutch (4) being arranged on one side of the first component (2),
the second driving teeth (5) are circumferentially arranged on one side surface of the clutch piece (4), the thickness of each second driving tooth (5) is gradually increased along a second rotating direction, the second rotating direction is opposite to the first rotating direction, and a gap is reserved between each second driving tooth (5) and the corresponding first driving tooth (3),
the friction surface (6) is arranged on the side surface, away from the first part (2), of the clutch piece (4) and used for driving wheels (9) of the trolley to rotate.
2. An automatic return trolley of a pipe drawing and twisting machine, which comprises the clutch device as claimed in claim 1, and is characterized by further comprising
A vehicle body (7),
the power device (8), the power device (8) is arranged on the vehicle body (7), the output end of the power device (8) drives the rotating shaft (1) to rotate,
the wheel (9) is rotatably arranged on the rotating shaft (1) and is positioned on one side of the clutch piece (4),
a projection (10), wherein the projection (10) is arranged on the side of the clutch part (4) far away from the part I (2), the friction surface (6) is arranged on the side surface of the projection (10), the friction surface (6) is a conical surface,
the groove (11), the groove (11) is annular and is arranged on the wheel (9), the lug boss (10) is arranged in the groove (11), the space of the groove (11) is larger than the volume of the lug boss (10),
the first driving teeth (3) are rotationally pushed to move along a second rotating direction, so that the friction surfaces (6) are in contact with the inner wall of the groove (11), and the wheels (9) are driven to rotate.
3. The automatic return trolley of the pipe drawing and twisting machine as claimed in claim 2, wherein the wheels (9) are gears,
also comprises
The rack (12) is arranged beside the vehicle body (7), and the wheels (9) are meshed with the rack (12).
4. The automatic return trolley for the pipe pulling and twisting machine as claimed in claim 2, wherein the inner surface of the groove (11) close to the friction surface (6) is a conical surface.
5. The automatic return trolley of the pipe drawing and twisting machine as claimed in claim 2, further comprising
The locking piece (13), locking piece (13) with automobile body (7) are articulated, are used for with automobile body (7) lock is twisted on the chain drive of machine to the trombone slide.
6. The automatic return trolley of the pipe drawing and twisting machine is characterized in that a bearing (14) is arranged between the wheel (9) and the rotating shaft (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020168008.XU CN211846098U (en) | 2020-02-13 | 2020-02-13 | Clutch device of stay tube twisting machine and automatic return trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020168008.XU CN211846098U (en) | 2020-02-13 | 2020-02-13 | Clutch device of stay tube twisting machine and automatic return trolley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211846098U true CN211846098U (en) | 2020-11-03 |
Family
ID=73249219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020168008.XU Active CN211846098U (en) | 2020-02-13 | 2020-02-13 | Clutch device of stay tube twisting machine and automatic return trolley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211846098U (en) |
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2020
- 2020-02-13 CN CN202020168008.XU patent/CN211846098U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shijiazhuang Chentai Electromechanical Sales Co.,Ltd. Assignor: SHIJIAZHUANG JIAKE ELECTROMECHANICAL TECHNOLOGY Co.,Ltd. Contract record no.: X2023980043277 Denomination of utility model: A clutch device and automatic return car for a tube pulling and twisting machine Granted publication date: 20201103 License type: Common License Record date: 20231011 Assignee: Shijiazhuang Herman Machinery and Equipment Sales Co.,Ltd. Assignor: SHIJIAZHUANG JIAKE ELECTROMECHANICAL TECHNOLOGY Co.,Ltd. Contract record no.: X2023980043207 Denomination of utility model: A clutch device and automatic return car for a tube pulling and twisting machine Granted publication date: 20201103 License type: Common License Record date: 20231010 Assignee: Shijiazhuang Dahan Machinery Technology Co.,Ltd. Assignor: SHIJIAZHUANG JIAKE ELECTROMECHANICAL TECHNOLOGY Co.,Ltd. Contract record no.: X2023980043186 Denomination of utility model: A clutch device and automatic return car for a tube pulling and twisting machine Granted publication date: 20201103 License type: Common License Record date: 20231010 Assignee: Luquan District Zhongshun Machinery Processing Plant Assignor: SHIJIAZHUANG JIAKE ELECTROMECHANICAL TECHNOLOGY Co.,Ltd. Contract record no.: X2023980043183 Denomination of utility model: A clutch device and automatic return car for a tube pulling and twisting machine Granted publication date: 20201103 License type: Common License Record date: 20231010 Assignee: Shijiazhuang Ducheng Color Steel Structure Engineering Co.,Ltd. Assignor: SHIJIAZHUANG JIAKE ELECTROMECHANICAL TECHNOLOGY Co.,Ltd. Contract record no.: X2023980043176 Denomination of utility model: A clutch device and automatic return car for a tube pulling and twisting machine Granted publication date: 20201103 License type: Common License Record date: 20231009 |
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| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shijiazhuang Tiening Machinery Equipment Manufacturing Co.,Ltd. Assignor: SHIJIAZHUANG JIAKE ELECTROMECHANICAL TECHNOLOGY Co.,Ltd. Contract record no.: X2023980043301 Denomination of utility model: A clutch device and automatic return car for a tube pulling and twisting machine Granted publication date: 20201103 License type: Common License Record date: 20231011 Assignee: Shijiazhuang Qianyuan Building Materials Technology Co.,Ltd. Assignor: SHIJIAZHUANG JIAKE ELECTROMECHANICAL TECHNOLOGY Co.,Ltd. Contract record no.: X2023980043290 Denomination of utility model: A clutch device and automatic return car for a tube pulling and twisting machine Granted publication date: 20201103 License type: Common License Record date: 20231011 |
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| EE01 | Entry into force of recordation of patent licensing contract |