CN206483920U - A kind of full-automatic double-ended pipe end forming machine - Google Patents
A kind of full-automatic double-ended pipe end forming machine Download PDFInfo
- Publication number
- CN206483920U CN206483920U CN201720119781.5U CN201720119781U CN206483920U CN 206483920 U CN206483920 U CN 206483920U CN 201720119781 U CN201720119781 U CN 201720119781U CN 206483920 U CN206483920 U CN 206483920U
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- China
- Prior art keywords
- pipe end
- end forming
- oil cylinder
- clamp system
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Abstract
The utility model discloses a kind of full-automatic double-ended pipe end forming machine, including body, one end of the body is provided with the first pipe end forming mechanism and the first clamp system, the other end of the body is slidably fitted with slide plate, the slide plate is provided with the second pipe end forming mechanism and the second clamp system, first pipe end forming mechanism, first clamp system, second pipe end forming mechanism and the coplanar setting of second clamp system；Screw thread on connecting seat, the connecting seat is provided with the body of the second pipe end forming mechanism correspondence position, and the first adjusting screw being connected with second pipe end forming mechanism is installed.Using the full-automatic double-ended pipe end forming machine, it not only can guarantee that the one end for treating processing body is processed, moreover it is possible to realize and the two ends of body to be processed are processed simultaneously, process is effectively reduced, simultaneously, it is ensured that concentricity requirement, moreover, substantially increasing machining accuracy and processing efficiency.
Description
Technical field
The utility model is related to pipe end forming equipment technical field, more particularly to a kind of full-automatic double-ended pipe end forming machine.
Background technology
It is well known that in order to reach the connection of two or more equivalent specifications bodys, it is necessary to a certain or a few
The end of body carries out undergauge or swollen footpath (being commonly called as the draw or tube expansion), and at present, the existing draw or pipe expanding equipment can only be to bodys
One end be processed, when being if desired processed the two ends of body, then need to overturn body, afterwards again to body
The other end be processed, process is more, and the labor intensity of staff is big, low production efficiency.
Meanwhile, after the two ends undergauge or tube expansion of body, if there is strict concentricity requirement, existing equipment can not also be carried out
Ensure, and then leverage the machining accuracy of the equipment；Moreover, existing draw equipment or pipe expanding equipment are independent respectively
, considerably increase purchase cost.
Utility model content
The purpose of this utility model is to provide a kind of full-automatic double-ended pipe end forming machine, with reach improve operating efficiency and
The purpose of machining accuracy.
In order to solve the above technical problems, the technical solution of the utility model is：A kind of full-automatic double-ended pipe end forming machine, bag
Body is included, one end of the body is provided with the first pipe end forming mechanism and the first clamp system, and the other end of the body is slided
Slide plate is installed, the slide plate is provided with the second pipe end forming mechanism and the second clamp system, first pipe end forming mechanism,
First clamp system, second pipe end forming mechanism and the coplanar setting of second clamp system；With the described second pipe
Hold the body of shaping mechanism correspondence position to be provided with screw thread on connecting seat, the connecting seat to be provided with and second pipe end
The first connected adjusting screw of shaping mechanism.
As an improvement, first pipe end forming mechanism and second pipe end forming mechanism include fixed seat,
The sliding block that pipe end is molded hydraulic oil cylinder driving is slidably fitted with the fixed seat, the sliding block is molded the one of oil cylinder away from the pipe end
End is installed with support base, the support base provided with pipe end forming die tool, and the pipe end forming die tool is close to described first
Clamp system or second clamp system；First adjusting screw is connected in the fixed seat, the first regulation silk
The one end of thick stick away from the fixed seat is provided with handwheel.
As a further improvement, the support base is provided with punch mechanism；The punch mechanism is described including being arranged at
Supporting table on support base, the supporting table is provided with punching oil cylinder, and the actuating station of the punching oil cylinder is provided with hole punch element；With
Through hole is equipped with the support base of the hole punch element correspondence position and pipe end forming die tool.
As a further improvement, the gas for being additionally provided with towards the hole punch element and being connected with source of the gas in the supporting table
Mouth.
As further improving, the support base is provided with screw thread on support, the support and is provided with the second regulation
Leading screw, second adjusting screw is provided with sensor block, with the body of the sensor block correspondence position and is slidably fitted with
Two photoelectric sensor switch；The photoelectric sensor switch, pipe end shaping oil cylinder and the punching oil cylinder are and ECU
It is connected.
As improvement further, first clamp system includes the base being arranged on the body, the bottom
The vertically slidable clamping seats for being provided with power set driving on seat, the clamping seats are provided with the first upper bolster, positioned at described the
The base below one upper bolster is provided with the first die shoe；
Second clamp system includes the clamping cylinder fixed seat being arranged on the slide plate, and the clamping cylinder is fixed
Seat is provided with the second die shoe, and the second upper bolster that clamping cylinder drives is provided with positioned at the top of second die shoe；It is described
Clamping cylinder and the power set are connected with the ECU.
As improvement further, the power set include be articulated with the base and with the ECU phase
Driving oil cylinder even, the actuating station of the driving oil cylinder is hinged with connecting rod, and the actuating station of the driving oil cylinder is articulated with the company
The middle part of bar；The slide slided on the base is hinged with the connecting rod, the clamping seats are arranged on the slide.
As improvement further, screw thread is provided with the 3rd regulation silk being connected with the clamping seats on the slide
Thick stick.
As improvement further, the body is provided with the cooling bag being connected with cooling unit；On the body also
Provided with oil pressure gauge, liquid level gauge and oil temperature gauge.
By adopting the above-described technical solution, a kind of full-automatic double-ended pipe end forming machine provided by the utility model has
Beneficial effect is as follows：
Because one end of body is provided with the first pipe end forming mechanism and the first clamp system, the other end of body is slidably installed
There is slide plate, slide plate is provided with the second pipe end forming mechanism and the second clamp system, so that at work, first according to pipe to be processed
The length of body, operation and the first adjusting screw of the second pipe end forming mechanism are acted, and then drive slide plate action, until the second pipe
End shaping mechanism and the second clamp system are moved to suitable position, afterwards, by body to be processed first clamp system and the
Two clamp systems are clamped, afterwards the first pipe end forming mechanism and the second pipe end forming mechanism synchronization action, and then are completed to be added
The processing (undergauge or swollen footpath) of work body pipe end；Certainly, if need to be only processed to one end of body to be processed, wherein one is only needed
Group pipe end forming mechanism and clamp system just can be completed.
In summary, using the full-automatic double-ended pipe end forming machine, it not only can guarantee that the one end for treating processing body is carried out
Processing, moreover it is possible to realize and the two ends of body to be processed are processed simultaneously, effectively reduce process, simultaneously, it is ensured that concentricity requirement,
Moreover, substantially increasing machining accuracy and production efficiency.
Because the first pipe end forming mechanism and the second pipe end forming mechanism include sliding peace in fixed seat, the fixed seat
The sliding block of hydraulic oil cylinder driving is molded equipped with pipe end, sliding block is installed with support base, support base away from one end that pipe end is molded oil cylinder
It is interior to have provided with pipe end forming die, so that when the pipe end to body to be processed is processed, pipe end shaping hydraulic oil cylinder driving sliding block exists
Slided in fixed seat, and then realize that pipe end forming die has close to body direction to be processed, until completing the processing of pipe end, used
The pipe end forming mechanism, is favorably improved the processing efficiency to pipe end, and simple in construction, is easy to processing and manufacturing.
Because the first adjusting screw is connected in fixed seat, the one end of the first adjusting screw away from fixed seat is provided with handwheel,
So as to which by the connection of the first adjusting screw and fixed seat, the connection and connection being effectively ensured with the second pipe end forming mechanism can
By property, meanwhile, the operation to the first adjusting screw is easy to by handwheel, time saving and energy saving effect is can reach.
Because support base is provided with punch mechanism, so that being met by punch mechanism needs the need of through hole after tube end maching
Ask, through hole is processed without single equipment, not only ensure that the processing efficiency to body to be processed, moreover, avoiding
The problem of additionally purchasing through hole process equipment and cause to increase input.
Because punch mechanism includes the supporting table being arranged on support base, supporting table is provided with punching oil cylinder, punching oil cylinder
Actuating station be provided with hole punch element so that punching oil cylinder drives hole punch element to have through support base and pipe end forming die at work
On through hole, and complete processing to through hole on body, not only effectively meeting body needs to process the demand of through hole, Er Qiejie
Structure is simple, and manufacturing cost is low.
Due to the valve for being additionally provided with towards hole punch element and being connected with source of the gas in supporting table, so as to be easy in time by valve
Remove the iron filings produced in process.
The second adjusting screw being provided with due to support base on support, support is provided with sensor block, position corresponding with sensor block
Be slidably fitted with two photoelectric sensor switch on the body put, photoelectric sensor switch, pipe end shaping oil cylinder and punching oil cylinder with
ECU is connected, so as to can ensure that sensor block pipe end forming die tool adds to body pipe end to be processed by photoelectric sensor switch
The precision of section chief's degree.
Vertically slidable on base on body, base power set drive is installed because the first clamp system includes being arranged at
Dynamic clamping seats, clamping seats are provided with the first upper bolster, and the base below the first upper bolster is provided with the first die shoe；The
Two clamp systems include the clamping cylinder fixed seat being arranged on slide plate, and clamping cylinder fixed seat is provided with the second die shoe, position
The second upper bolster that clamping cylinder drives is provided with the top of the second die shoe, so as at work, pass through power set or folder
Locking oil cylinder fixed seat drives the first upper bolster or the second upper bolster vertically to act respectively, to realize the first upper bolster and first time mould
The folding of seat and the second upper bolster and the second die shoe, it is simple in construction, it is easy to accomplish, and clamping effect is good.
Because power set include the driving oil cylinder being articulated with base, the actuating station of oil cylinder is driven to be hinged with connecting rod, and
The actuating station of driving oil cylinder, which is articulated with the middle part of connecting rod, the connecting rod, is hinged with the slide slided on base, and clamping seats are set
In on slide, so that when being clamped work, the slide of driving hydraulic oil cylinder driving and rod hinge connection is acted, and then realizes clamping seats
Action, after clamping seats are clamped, the other end of connecting rod (away from the one end being hinged with slide) is acted against on base, so realize from
Lock function, further ensures clamping effect.
Due to photoelectric sensor switch, pipe end shaping oil cylinder, clamping cylinder, driving oil cylinder and punching oil cylinder and ECU
Be connected, realize automation processing, it is ensured that the harmony of all parts action, be conducive to improving operating efficiency, and significantly
Reduce the labor intensity of staff.
Because screw thread is provided with the 3rd adjusting screw being connected with clamping seats on slide, so as to pass through the 3rd adjusting screw pair
Position of the clamping seats on slide is adjusted, and the tubing for clamping plurality of specifications provides guarantee.
Because body is provided with the cooling bag being connected with cooling unit, so that the cooling by cooling down bag, to ensure hydraulic pressure
Oil has suitable operating temperature；By pressure, liquid level and the temperature of oil pressure gauge, liquid level gauge and oil temperature gauge, in real time monitoring hydraulic oil,
The normal work of the full-automatic double-ended pipe end forming machine has been effectively ensured.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of the second pipe end forming mechanism and the first adjusting screw in Fig. 1；
Fig. 3 is the first pipe end forming mechanism or the second pipe end forming mechanism and the structural representation of punch mechanism cooperation in Fig. 1
Figure；
Fig. 4 is the structural representation of pipe end forming die tool (pipe-reduction mold) in Fig. 3；
Fig. 5 is the structural representation of the second clamp system in Fig. 1；
Fig. 6 is the structural representation of the first clamp system in Fig. 1；
Fig. 7 is the structural representation of photoelectric induction device in Fig. 1；
In figure, 1- bodies；101- cooling bags；102- liquid level gauges and oil temperature gauge；103- oil pressure gauges；The pipe end forming machines of 2- first
Structure；201- fixed seats；202- pipe ends are molded oil cylinder；203- sliding blocks；204- support bases；205- pipe-reduction molds；2051- die bodys；
20511- arcuate guide portions；2052- core rods；206- punch mechanisms；2061- supporting tables；2062- punching oil cylinders；2063- punchings
Element；2064- valves；207- supports；The adjusting screws of 2071- second；2072- sensor blocks；2073- photoelectric sensor switch；3-
One clamp system；301- bases；302- clamping seats；The upper bolsters of 303- first；The die shoes of 304- first；4- slide plates；5- second is managed
Hold shaping mechanism；The clamp systems of 6- second；601- clamping cylinder fixed seats；The die shoes of 602- second；603- clamping cylinders；
The upper bolsters of 604- second；7- connecting seats；The adjusting screws of 701- first；702- handwheels；8- power set；801- drives oil cylinder；
802- connecting rods；803- slides；The adjusting screws of 804- the 3rd；9- ECUs.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only to explain
The utility model, is not used to limit the utility model.
As Fig. 1 and Fig. 2 jointly shown in, a kind of full-automatic double-ended pipe end forming machine, including body 1, one end of the body 1 is consolidated
Dingan County is equipped with the first pipe end forming mechanism 2 and the first clamp system 3, and the other end of the body 1 is slidably fitted with drive device drive
Dynamic slide plate 4 (slide plate 4 is slided on the length direction of body 1), the drive device is preferably the leading screw of motor driving, leading screw
Screw thread is provided with the feed screw nut being connected with slide plate 4；The slide plate 4 is provided with the second pipe end forming mechanism 5 and the second clamp system
6, first pipe end forming mechanism 2, the first clamp system 3, the second pipe end forming mechanism 5 and the coplanar setting of the second clamp system 6；
Connecting seat 7 is provided with the body 1 of the correspondence position of the second pipe end forming mechanism 5, the clamp system 6 of connecting seat 7 and second is distinguished
Positioned at the both sides of the second pipe end forming mechanism 5, and on connecting seat 7, screw thread is provided be connected with the second pipe end forming mechanism 5
One adjusting screw 701.
As shown in figure 3, the pipe end forming mechanism 5 of the first pipe end forming mechanism 2 and second includes fixed seat 201, this is consolidated
The square slider 203 that pipe end shaping oil cylinder 202 drives is slidably fitted with reservation 201, the sliding block 203 is molded oil cylinder away from pipe end
202 one end is installed with support base 204, and provided with pipe end forming die tool in the support base 204, pipe end forming die tool includes
Pipe-reduction mold 205 and tube expansion mould commonly used in the prior art, so that the side by changing pipe-reduction mold 205 or tube expansion mould
Formula, carries out undergauge or swollen footpath to pipe end in an equipment to realize, greatly reduces purchase cost；Pipe end forming die tool is leaned on
Nearly clamp system 6 of first clamp system 3 or second；First adjusting screw 701 is connected in fixed seat 201, first regulation
Leading screw 701 can be rotated in fixed seat 201, and the one end of the first adjusting screw 701 away from fixed seat 201 is provided with handwheel 702.
As Fig. 3 and Fig. 4 jointly shown in, its mounting means is introduced by taking the structure of pipe-reduction mold 205 as an example in the present embodiment,
The pipe-reduction mold 205 includes being provided with core rod 2052, the core rod in the die body 2051 being arranged in support base 204, the die body 2051
Spacing is provided between 2052 and die body 2051, the initiating terminal of the die body 2051 is provided with arcuate guide portion 20511.
Preferably, being additionally provided with punch mechanism 206 on the support base 204, the punch mechanism 206 includes being arranged at support base
Supporting table 2061 on 204, the supporting table 2061 is provided with punching oil cylinder 2062, and the actuating station of the punching oil cylinder 2062 is provided with punching
Hole element 2063；With the support base 204 and pipe end forming die of the correspondence position of hole punch element 2063 tool (including core rod 2052 and mould
Body 2051) on be equipped with through hole.
The valve 2064 for being additionally provided with towards hole punch element 2063 and being connected with source of the gas in the supporting table 2061.
As shown in fig. 7, being additionally provided with photoelectric induction device between the support base 204 and body 1, the photoelectric induction device includes
The support 207 on support base 204 is arranged at, screw thread is provided with the second adjusting screw 2071 on the support 207, the second regulation silk
Thick stick 2071 provided be slidably fitted with sensor block 2072, with the body 1 of the correspondence position of sensor block 2,072 two be used for detect feel
Answer the photoelectric sensor switch 2073 of the displacement of block 2072；The photoelectric sensor switch 2073, pipe end shaping oil cylinder 202 and punching oil cylinder
2062 are connected with ECU 9.
As shown in fig. 6, first clamp system 3 is included on the base 301 being arranged on body 1, the base 301 vertically
The clamping seats 302 of the driving of power set 8 are slidably fitted with, the power set 8 are connected with ECU 9；On the clamping seats 302
Provided with the first upper bolster 303, the base 301 positioned at the lower section of the first upper bolster 303 is provided with the first die shoe 304.
The power set 8 include the driving oil cylinder 801 for being articulated with base 301 and being connected with ECU 9, driving oil
The actuating station of cylinder 801 is hinged with connecting rod 802, and the actuating station of the driving oil cylinder 801 is articulated with the middle part of connecting rod 802；The connecting rod
The slide 803 slided on base 301 is hinged with 802, the clamping seats 302 are fixedly installed on slide 803；The slide 803
Upper screw thread is provided with the 3rd adjusting screw 804 being connected with clamping seats 302.
As shown in figure 5, second clamp system 6 includes the clamping cylinder fixed seat 601 being arranged on slide plate 4, the clamping
Oil cylinder fixing base 601 is provided with the second die shoe 602, is driven positioned at the top of the second die shoe 602 provided with clamping cylinder 603
Second upper bolster 604, the clamping cylinder 603 is connected with ECU 9.
As shown in figure 1, being additionally provided with the cooling bag 101 being connected with cooling unit on the body 1；Oil is additionally provided with the body 1
Press table 104, liquid level gauge 102 and oil temperature gauge 103.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Any modifications, equivalent substitutions and improvements made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (9)
1. a kind of full-automatic double-ended pipe end forming machine, including body, it is characterised in that one end of the body is provided with the first pipe end
Shaping mechanism and the first clamp system, the other end of the body are slidably fitted with slide plate, and the slide plate is provided with the second pipe end
Shaping mechanism and the second clamp system, first pipe end forming mechanism, first clamp system, second pipe end shaping
Mechanism and the coplanar setting of second clamp system；It is provided with the body of the second pipe end forming mechanism correspondence position
Screw thread is provided with the first adjusting screw being connected with second pipe end forming mechanism on connecting seat, the connecting seat.
2. full-automatic double-ended pipe end forming machine according to claim 1, it is characterised in that first pipe end forming mechanism
Include being slidably fitted with the cunning that pipe end is molded hydraulic oil cylinder driving in fixed seat, the fixed seat with second pipe end forming mechanism
Block, the sliding block is installed with support base away from one end that the pipe end is molded oil cylinder, in the support base provided with pipe end into
Pattern has, and the pipe end forming die tool is close to first clamp system or second clamp system；The first regulation silk
Thick stick is connected in the fixed seat, and the described one end of first adjusting screw away from the fixed seat is provided with handwheel.
3. full-automatic double-ended pipe end forming machine according to claim 2, it is characterised in that the support base is provided with punching
Mechanism；The punch mechanism includes the supporting table being arranged on the support base, and the supporting table is provided with punching oil cylinder, described
The actuating station of punching oil cylinder is provided with hole punch element；It is molded with the support base of the hole punch element correspondence position and the pipe end
Through hole is equipped with mould.
4. full-automatic double-ended pipe end forming machine according to claim 3, it is characterised in that be additionally provided with court in the supporting table
The valve being connected to the hole punch element and with source of the gas.
5. the full-automatic double-ended pipe end forming machine according to claim 3 or 4, it is characterised in that the support base is provided with
Screw thread is provided with the second adjusting screw on support, the support, and second adjusting screw is provided with sensor block, with the sensing
Two photoelectric sensor switch are slidably fitted with the body of block correspondence position；The photoelectric sensor switch, the pipe end into
Type oil cylinder and the punching oil cylinder are connected with ECU.
6. full-automatic double-ended pipe end forming machine according to claim 5, it is characterised in that first clamp system includes
It is arranged at the vertically slidable clamping seats for being provided with power set driving, the clamping on the base on the body, the base
Seat is provided with the first upper bolster, and the base below first upper bolster is provided with the first die shoe；
Second clamp system is included in the clamping cylinder fixed seat being arranged on the slide plate, the clamping cylinder fixed seat
Provided with the second die shoe, the second upper bolster that clamping cylinder drives is provided with positioned at the top of second die shoe；It is described to clamp
Oil cylinder and the power set are connected with the ECU.
7. full-automatic double-ended pipe end forming machine according to claim 6, it is characterised in that the power set include being hinged
In the driving oil cylinder being connected on the base and with the ECU, the actuating station of the driving oil cylinder is hinged with connecting rod, institute
The actuating station for stating driving oil cylinder is articulated with the middle part of the connecting rod；The cunning slided on the base is hinged with the connecting rod
Seat, the clamping seats are arranged on the slide.
8. full-automatic double-ended pipe end forming machine according to claim 7, it is characterised in that screw thread is provided with the slide
The 3rd adjusting screw being connected with the clamping seats.
9. full-automatic double-ended pipe end forming machine according to claim 8, it is characterised in that the body is provided with and cooling
The connected cooling bag of unit；Oil pressure gauge, liquid level gauge and oil temperature gauge are additionally provided with the body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720119781.5U CN206483920U (en) | 2017-02-09 | 2017-02-09 | A kind of full-automatic double-ended pipe end forming machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720119781.5U CN206483920U (en) | 2017-02-09 | 2017-02-09 | A kind of full-automatic double-ended pipe end forming machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206483920U true CN206483920U (en) | 2017-09-12 |
Family
ID=59764657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720119781.5U Expired - Fee Related CN206483920U (en) | 2017-02-09 | 2017-02-09 | A kind of full-automatic double-ended pipe end forming machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206483920U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107983857A (en) * | 2018-01-17 | 2018-05-04 | 广东东箭汽车科技股份有限公司 | Hardware tubing double end pipe expanding equipment |
| CN108435858A (en) * | 2018-03-28 | 2018-08-24 | 广州捷晟自动化控制设备有限公司 | A kind of pipe end forming machine |
| CN108555164A (en) * | 2018-01-25 | 2018-09-21 | 张家港市宇昇机械有限公司 | A kind of expanding device for bending machine |
| CN111185533A (en) * | 2020-01-22 | 2020-05-22 | 西安陕鼓通风设备有限公司 | Profiling tool and method for small symmetrical double-horn air inlets for ventilator |
| CN111421050A (en) * | 2019-01-10 | 2020-07-17 | 江门市利华实业有限公司 | Full-automatic necking and punching machine |
-
2017
- 2017-02-09 CN CN201720119781.5U patent/CN206483920U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107983857A (en) * | 2018-01-17 | 2018-05-04 | 广东东箭汽车科技股份有限公司 | Hardware tubing double end pipe expanding equipment |
| CN108555164A (en) * | 2018-01-25 | 2018-09-21 | 张家港市宇昇机械有限公司 | A kind of expanding device for bending machine |
| CN108555164B (en) * | 2018-01-25 | 2024-02-23 | 张家港市宇昇机械有限公司 | Flaring device for pipe bending machine |
| CN108435858A (en) * | 2018-03-28 | 2018-08-24 | 广州捷晟自动化控制设备有限公司 | A kind of pipe end forming machine |
| CN111421050A (en) * | 2019-01-10 | 2020-07-17 | 江门市利华实业有限公司 | Full-automatic necking and punching machine |
| CN111185533A (en) * | 2020-01-22 | 2020-05-22 | 西安陕鼓通风设备有限公司 | Profiling tool and method for small symmetrical double-horn air inlets for ventilator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170912 Termination date: 20180209 |
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| CF01 | Termination of patent right due to non-payment of annual fee |