CN107866495A - A kind of copper pipe shaped device - Google Patents
A kind of copper pipe shaped device Download PDFInfo
- Publication number
- CN107866495A CN107866495A CN201711066968.4A CN201711066968A CN107866495A CN 107866495 A CN107866495 A CN 107866495A CN 201711066968 A CN201711066968 A CN 201711066968A CN 107866495 A CN107866495 A CN 107866495A
- Authority
- CN
- China
- Prior art keywords
- copper pipe
- clamp formwork
- lower clamp
- shaped device
- detent mechanism
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D41/00—Application of procedures in order to alter the diameter of tube ends
- B21D41/02—Enlarging
- B21D41/026—Enlarging by means of mandrels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/20—Storage arrangements; Piling or unpiling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
- B21D53/06—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of metal tubes
Abstract
The invention discloses a kind of copper pipe shaped device, including the shaping mechanism for carrying out divergence process to one end of copper pipe, the detent mechanism for positioning copper pipe, the feed mechanism for the material storage mechanism depositing copper pipe and copper pipe is released one by one and for copper pipe being pushed to from material storage mechanism detent mechanism, shaping mechanism, detent mechanism, material storage mechanism and feed mechanism are sequentially arranged；Shaping mechanism is included for making copper pipe carry out the mould of deformation expansion and the forming cylinder for driving mould to be moved towards detent mechanism；Detent mechanism includes upper clamp formwork and lower clamp formwork, and lower clamp formwork is arranged on a workbench, and upper clamp formwork is correspondingly arranged in the surface of lower clamp formwork and connect with a positioning cylinders, and positioning cylinder driving upper clamp formwork moves up and down relative to lower clamp formwork.The copper pipe shaped device need not be participated in manually, high-precision expanding and shaping processing can be carried out to copper pipe automatically, so as to meet high-precision expanding and shaping requirement.
Description
Technical field
The present invention relates to the making apparatus field of heat dissipation copper pipe, especially a kind of copper pipe shaped device.
Background technology
For the heat dissipation copper pipe in air conditioner, due to the air conditioner limitation of hollow, it is therefore desirable to which heat dissipation copper pipe is made
Into different shapes, so as to meet the space requirement in air conditioner.Because the shape of heat dissipation copper pipe limits, one is tended not to
It is secondary to complete the making of heat dissipation copper pipe, and need to make multistage heat dissipation copper pipe respectively, and multistage heat dissipation copper pipe is once spliced in one
Rise, in order that can well splice between obtaining two sections of heat dissipation copper pipes, it is necessary to one end of heat dissipation copper pipe is carried out divergence process, so as to
So that can well it be fitted together between heat dissipation copper pipe.
Traditional one end to heat dissipation copper pipe carries out expanding and shaping processing, is generally all by the way of mechanical bond is artificial
Realize, due to the limitation of the technological process of traditional expanding and shaping equipment, it is therefore desirable to manually aided in, even if manually entering
Row auxiliary, because manual operation has the shortcomings that error is big, for the operation of high-precision expanding and shaping, traditional processing mode is remote
The remote requirement for not reaching processing.
The content of the invention
To solve the above problems, it is an object of the invention to provide a kind of copper pipe shaped device, it is not necessary to artificial to participate in, energy
It is enough that high-precision expanding and shaping processing is carried out to copper pipe automatically, so as to meet high-precision expanding and shaping requirement.
Technical scheme is used by the present invention solves its problem：
A kind of copper pipe shaped device, including for carrying out the shaping mechanism of divergence process, for positioning to one end of copper pipe
The detent mechanism of copper pipe, for the material storage mechanism depositing copper pipe and copper pipe is released one by one and for copper pipe to be pushed away from material storage mechanism
The feed mechanism of detent mechanism is sent to, shaping mechanism, detent mechanism, material storage mechanism and feed mechanism are sequentially arranged；Shaping mechanism
Including for making copper pipe carry out the mould of deformation expansion and the shaping for driving mould to be moved towards detent mechanism
Cylinder；Detent mechanism includes upper clamp formwork and lower clamp formwork, and lower clamp formwork is arranged on a workbench, and upper clamp formwork is correspondingly arranged in down
The surface of clamping simultaneously connects with a positioning cylinders, and positioning cylinder driving upper clamp formwork moves up and down relative to lower clamp formwork.
Further, mould is a metalwork for being provided with annular groove, and the footpath of annular groove is wide along metalwork
End face is gradually reduced towards the direction inside metalwork, and the axial direction of annular groove is consistent with the axial direction of copper pipe.
Further, upper clamp formwork and lower clamp formwork are respectively arranged with the upper fastening groove and lower fastening groove to match with copper pipe outer surface, on
When clamping is pressed on lower clamp formwork so as to fixed copper pipe, copper pipe is simultaneously among upper fastening groove and lower fastening groove.
Further, detent mechanism also includes being used for the gas blow pipe for copper pipe being carried out from lower clamp formwork discharging, and gas blow pipe goes out
Gas direction is perpendicular to the axial direction of lower fastening groove.
Further, detent mechanism also includes being used for the baffle plate and use for positioning position of the copper pipe between upper clamp formwork and lower clamp formwork
In the baffle plate cylinder that driving baffle plate moves, baffle plate setting is between mould and lower clamp formwork.
Further, material storage mechanism includes material storing box, for feeding flat board that copper pipe is taken out from material storing box and for driving
The feeding cylinder that dynamic feeding flat board moves along the transmission direction perpendicular to copper pipe, be provided with feeding flat board shape with
The blow tank that copper pipe shape matches；Feeding flat board is under the driving effect of feeding cylinder, in material storing box bottom and the biography of copper pipe
Reciprocated between defeated path.
Further, feed mechanism includes being used to copper pipe push the push rod of detent mechanism, the push rod branch for supporting push rod to
Frame and pass through a drive lead screw and push-rod electric machine for driving push rod and the synchronization-moving push-rod electric machine of pusher bar support, pusher bar support
It is connected.
Further, the pipe range locating piece for stretching to the length of detent mechanism for adjusting push rod, push rod are provided with push rod
On buffer spring for slowing down pusher impulsive force is provided between pipe range locating piece and pusher bar support, push rod can relative pipe
Long locating piece moves.
The beneficial effects of the invention are as follows：A kind of copper pipe shaped device, storage have copper pipe material storage mechanism can seriatim
Copper pipe is released, therefore feed mechanism can seriatim be transported to copper pipe among shaping mechanism and carry out divergence process, and localization machine
Structure can then fix the position of copper pipe so that shaping mechanism will not cause copper pipe to occur what is offset when carrying out divergence process to copper pipe
Situation, so as to carry out high-precision expanding and shaping processing to copper pipe automatically, interfere without artificial participation；Copper pipe exists
When being pushed into the presence of feed mechanism among lower clamp formwork, positioning cylinder drives upper clamp formwork to be moved towards lower clamp formwork, now, copper pipe
Can tightly it be fixed by upper clamp formwork and lower clamp formwork, so as to avoid the occurrence of the situation that copper pipe is shifted over, and on copper pipe
When clamping and lower clamp formwork are fixed, one end of copper pipe be in outside lower clamp formwork, now, forming cylinder driving mould towards
Copper pipe moves, so as to carry out deformation divergence process to copper pipe.Therefore, copper pipe shaped device of the invention, it is not necessary to it is artificial to participate in,
Automatically high-precision expanding and shaping processing can be carried out to copper pipe, so as to meet high-precision expanding and shaping requirement.
Brief description of the drawings
The invention will be further described with example below in conjunction with the accompanying drawings.
Fig. 1 is the schematic diagram of the copper pipe shaped device of the present invention.
Embodiment
Reference picture 1, a kind of copper pipe shaped device of the invention, including for one end of copper pipe is carried out divergence process into
Type mechanism 1, the detent mechanism 2 for positioning copper pipe, for depositing copper pipe and the material storage mechanism 3 that copper pipe is released one by one and being used for
Copper pipe is pushed to from material storage mechanism 3 feed mechanism 4 of detent mechanism 2, shaping mechanism 1, detent mechanism 2, material storage mechanism 3 and sent
Material mechanism 4 is sequentially arranged；Shaping mechanism 1 is included for making copper pipe carry out the mould 11 of deformation expansion and be molded for driving
The forming cylinder 12 that mould 11 moves towards detent mechanism 2；Detent mechanism 2 includes upper clamp formwork 21 and lower clamp formwork 22, lower clamp formwork 22
It is arranged on a workbench, upper clamp formwork 21 is correspondingly arranged in the surface of lower clamp formwork 22 and is connected with a positioning cylinder 26
Connect, positioning cylinder 26 drives upper clamp formwork 21 to be moved up and down relative to lower clamp formwork 22.Specifically, storage has the storage machine of copper pipe
Structure 3 seriatim can release copper pipe, therefore feed mechanism 4 can seriatim be transported to copper pipe among shaping mechanism 1 and carry out
Divergence process, and detent mechanism 2 can then fix the position of copper pipe so that when shaping mechanism 1 is to copper pipe progress divergence process not
Copper pipe can be caused situation about offseting occur, so as to carry out high-precision expanding and shaping processing to copper pipe automatically, without
Artificial participation interference；When copper pipe is pushed into the presence of feed mechanism 4 among lower clamp formwork 22, pressed from both sides in the driving of positioning cylinder 26
Mould 21 moves towards lower clamp formwork 22, and now, copper pipe can tightly be fixed by upper clamp formwork 21 and lower clamp formwork 22, so as to avoid
There is copper pipe situation about being shifted over, and when copper pipe is fixed by upper clamp formwork 21 and lower clamp formwork 22, one end of copper pipe is in down
Outside clamping 22, now, forming cylinder 12 drives mould 11 to be moved towards copper pipe, so as to be carried out to copper pipe at deformation expansion
Reason.Therefore, copper pipe shaped device of the invention, it is not necessary to it is artificial to participate in, high-precision expand into can be carried out to copper pipe automatically
Type processing, so as to meet high-precision expanding and shaping requirement.
Wherein, reference picture 1, mould 11 are a metalwork for being provided with annular groove, the footpath of annular groove it is wide along
The end face of metalwork is gradually reduced towards the direction inside metalwork, and the axial direction of annular groove is consistent with the axial direction of copper pipe.Tool
Body, mould 11 is made by metalwork, therefore have good hardness, when carrying out deformation divergence process to copper pipe not
It is vulnerable to infringement.The annular groove being arranged in mould 11, the wide end face along metalwork in its footpath is towards inside metalwork
Direction be gradually reduced, therefore when copper pipe is extruded among annular groove, one end for being on copper pipe among annular groove
Deformation expansion can be effectively carried out, so as to meet high-precision expanding and shaping requirement.
Wherein, reference picture 1, upper clamp formwork 21 and lower clamp formwork 22 be respectively arranged with the upper fastening groove that matches with copper pipe outer surface and
Lower fastening groove, when upper clamp formwork 21 is pressed on lower clamp formwork 22 so as to fixed copper pipe, copper pipe is simultaneously among upper fastening groove and lower fastening groove.
Specifically, upper fastening groove and lower fastening groove match with copper pipe outer surface, therefore when upper clamp formwork 21 and lower clamp formwork 22 clamp copper pipe,
Copper pipe will not be damaged.
Wherein, reference picture 1, detent mechanism 2 also include being used for the gas blow pipe 25 for copper pipe being carried out from lower clamp formwork 22 discharging,
The outgassing direction of gas blow pipe 25 is perpendicular to the axial direction of lower fastening groove.Specifically, after mould 11 completes divergence process to copper pipe,
Gas blow pipe 25 can be blown down copper pipe among lower clamp formwork 22, so as to complete the discharging operations to copper pipe, facilitate operating personnel's
Processing.
Wherein, reference picture 1, detent mechanism 2 also include being used to position position of the copper pipe between upper clamp formwork 21 and lower clamp formwork 22
The baffle plate 23 and the baffle plate cylinder for driving baffle plate 23 to move put, baffle plate 23 are arranged at mould 11 and lower clamp formwork 22
Between.Specifically, baffle plate 23 can stop copper pipe in order to avoid the position that copper pipe is excessively stretched out between upper clamp formwork 21 and lower clamp formwork 22.When
When feed mechanism 4 promotes copper pipe the position between upper clamp formwork 21 and lower clamp formwork 22, baffle plate 23 can limit the position of copper pipe, in order to avoid
Copper pipe is excessively close to mould 11, so as to influence the divergence process to copper pipe.When baffle plate 23 blocks copper pipe and upper clamp formwork 21
When clamping copper pipe with lower clamp formwork 22, baffle plate cylinder driving baffle plate 23 leaves copper pipe, so as to not interfere with mould 11 to copper pipe
Divergence process.
Wherein, reference picture 1, material storage mechanism 3 includes material storing box 31, the feeding for copper pipe to be taken out from material storing box 31 is put down
Plate 32 and the feeding cylinder for driving feeding flat board 32 to be moved along the transmission direction perpendicular to copper pipe, feeding flat board 32
On be provided with the blow tank 34 that shape and copper pipe shape match；Feeding flat board 32 under the driving effect of feeding cylinder, in
Reciprocated between the bottom of material storing box 31 and the transmission path of copper pipe.Specifically, work of the feeding flat board 32 in feeding cylinder
During with the bottom for being moved to material storing box 31, the copper pipe that is stored in material storing box 31 can drop into one by one feeding flat board 32 it
On blow tank 34 among, now, feeding cylinder driving feeding flat board 32 move and make blow tank 34 with lower fastening groove
In on same straight line, so, under the impetus of feed mechanism 4, copper pipe successfully can be transported to down from feeding flat board 32
Divergence process is carried out among clamping 22.
Wherein, reference picture 1, feed mechanism 4 include being used to copper pipe push the push rod 41 of detent mechanism 2 to, pushed away for supporting
The pusher bar support 42 of bar 41 and for driving push rod 41 and the synchronization-moving push-rod electric machine 43 of pusher bar support 42, pusher bar support 42 is logical
A drive lead screw 44 is crossed with push-rod electric machine 43 to be connected.Specifically, when being on same straight line blow tank 34 and lower fastening groove,
Push-rod electric machine 43 all can drive drive lead screw 44 to be rotated, so that pusher bar support 42 drives push rod 41 to move, from
And copper pipe can be advanced among lower fastening groove among blow tank 34.
Wherein, reference picture 1, the pipe range for stretching to the length of detent mechanism 2 for adjusting push rod 41 is provided with push rod 41
Locating piece 45, it is provided between pipe range locating piece 45 and pusher bar support 42 on push rod 41 for slowing down the slow of pusher impulsive force
Spring 46 is rushed, push rod 41 can move with respect to pipe range locating piece 45.Specifically, according to the different sizes of copper pipe, can pass through
Pipe range locating piece 45 is adjusted, so that push rod 41 can be applied to the copper pipe of different length.And buffer spring 46 then can
Enough play a part of buffering, when push rod 41 promotes copper pipe to move forward or push rod 41 is resetted, due to the effect of inertia,
The problem of collision pusher bar support 42 occurs in push rod 41, and buffer spring 46 can slow down the collision avoided of push rod 41, so as to
The problem of enough avoiding push rod 41 from colliding pusher bar support 42 and push rod 41 is deformed.
Above is the preferable implementation to the present invention is illustrated, but the invention is not limited in above-mentioned embodiment party
Formula, those skilled in the art can also make a variety of equivalent variations on the premise of without prejudice to spirit of the invention or replace
Change, these equivalent deformations or replacement are all contained in the application claim limited range.
Claims (8)
- A kind of 1. copper pipe shaped device, it is characterised in that：Including the shaping mechanism for carrying out divergence process to one end of copper pipe (1), for positioning the detent mechanism (2) of copper pipe, for the material storage mechanism (3) depositing copper pipe and copper pipe is released one by one and it is used for Copper pipe is pushed to from the material storage mechanism (3) feed mechanism (4) of the detent mechanism (2), the shaping mechanism (1), determined Position mechanism (2), material storage mechanism (3) and feed mechanism (4) are sequentially arranged；The shaping mechanism (1) includes being used to carry out copper pipe The mould (11) of deformation expansion and the shaping for driving the mould (11) to be moved towards the detent mechanism (2) Cylinder (12)；The detent mechanism (2) includes upper clamp formwork (21) and lower clamp formwork (22), and the lower clamp formwork (22) is arranged at a job On platform, the upper clamp formwork (21) is correspondingly arranged in the surface of the lower clamp formwork (22) and is connected with a positioning cylinder (26) Connect, the positioning cylinder (26) drives the upper clamp formwork (21) to be moved up and down relative to the lower clamp formwork (22).
- A kind of 2. copper pipe shaped device according to claim 1, it is characterised in that：The mould (11) is a setting There is a metalwork of annular groove, the wide end face along the metalwork in footpath of the annular groove is towards inside the metalwork Direction is gradually reduced, and the axial direction of the annular groove is consistent with the axial direction of copper pipe.
- A kind of 3. copper pipe shaped device according to claim 1, it is characterised in that：The upper clamp formwork (21) and lower clamp formwork (22) upper fastening groove and lower fastening groove to match with copper pipe outer surface is respectively arranged with, the upper clamp formwork (21) is pressed on the lower clamp formwork (22) when on so as to fixed copper pipe, copper pipe is simultaneously among the upper fastening groove and lower fastening groove.
- A kind of 4. copper pipe shaped device according to claim 3, it is characterised in that：The detent mechanism (2) also includes using In the gas blow pipe (25) for copper pipe being carried out discharging from the lower clamp formwork (22), the outgassing direction of the gas blow pipe (25) perpendicular to The axial direction of the lower fastening groove.
- A kind of 5. copper pipe shaped device according to claim 1, it is characterised in that：The detent mechanism (2) also includes using In the baffle plate (23) of position of the positioning copper pipe between upper clamp formwork (21) and lower clamp formwork (22) and for driving the baffle plate (23) The baffle plate cylinder moved, the baffle plate (23) are arranged between the mould (11) and lower clamp formwork (22).
- A kind of 6. copper pipe shaped device according to claim 1, it is characterised in that：The material storage mechanism (3) includes storing Case (31), for feeding flat board (32) that copper pipe is taken out from the material storing box (31) and for driving the feeding flat board (32) the feeding cylinder moved along the transmission direction perpendicular to copper pipe, shape is provided with the feeding flat board (32) The blow tank (34) to match with copper pipe shape；The feeding flat board (32) is under the driving effect of the feeding cylinder, in institute State and reciprocated between material storing box (31) bottom and the transmission path of copper pipe.
- A kind of 7. copper pipe shaped device according to claim 1, it is characterised in that：The feed mechanism (4) includes being used for Copper pipe is pushed to the push rod (41) of the detent mechanism (2), the pusher bar support (42) for supporting the push rod (41) and is used for The push rod (41) and pusher bar support (42) synchronization-moving push-rod electric machine (43) are driven, the pusher bar support (42) passes by one Dynamic screw mandrel (44) is connected with the push-rod electric machine (43).
- A kind of 8. copper pipe shaped device according to claim 7, it is characterised in that：Use is provided with the push rod (41) On the pipe range locating piece (45) for adjusting the push rod (41) and stretching to the length of the detent mechanism (2), the push rod (41) The buffer spring (46) for slowing down pusher impulsive force is provided between the pipe range locating piece (45) and pusher bar support (42), The push rod (41) can relatively described pipe range locating piece (45) move.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711066968.4A CN107866495A (en) | 2017-11-01 | 2017-11-01 | A kind of copper pipe shaped device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711066968.4A CN107866495A (en) | 2017-11-01 | 2017-11-01 | A kind of copper pipe shaped device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107866495A true CN107866495A (en) | 2018-04-03 |
Family
ID=61752915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711066968.4A Withdrawn CN107866495A (en) | 2017-11-01 | 2017-11-01 | A kind of copper pipe shaped device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107866495A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110814191A (en) * | 2019-11-22 | 2020-02-21 | 重庆理工大学 | Full-automatic pipe expanding machine and pipe expanding method |
| CN113172166A (en) * | 2021-05-07 | 2021-07-27 | 荆州市天宇汽车配件有限公司 | Automobile pipe fitting flaring machine |
| CN113275891A (en) * | 2021-05-14 | 2021-08-20 | 杜洋 | Copper pipe flaring device and method and copper pipe processing equipment |
-
2017
- 2017-11-01 CN CN201711066968.4A patent/CN107866495A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110814191A (en) * | 2019-11-22 | 2020-02-21 | 重庆理工大学 | Full-automatic pipe expanding machine and pipe expanding method |
| CN110814191B (en) * | 2019-11-22 | 2021-11-09 | 重庆理工大学 | Full-automatic pipe expanding machine and pipe expanding method |
| CN113172166A (en) * | 2021-05-07 | 2021-07-27 | 荆州市天宇汽车配件有限公司 | Automobile pipe fitting flaring machine |
| CN113275891A (en) * | 2021-05-14 | 2021-08-20 | 杜洋 | Copper pipe flaring device and method and copper pipe processing equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180403 |
|
| WW01 | Invention patent application withdrawn after publication |