CN106825277B - A kind of hush pipe pressurizing unit - Google Patents
A kind of hush pipe pressurizing unit Download PDFInfo
- Publication number
- CN106825277B CN106825277B CN201710182609.9A CN201710182609A CN106825277B CN 106825277 B CN106825277 B CN 106825277B CN 201710182609 A CN201710182609 A CN 201710182609A CN 106825277 B CN106825277 B CN 106825277B
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- hush pipe
- avris
- pipe
- compact heap
- drive shaft
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Classifications
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- 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
- B21D41/04—Reducing; Closing
-
- 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
- B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Exhaust Silencers (AREA)
Abstract
The present invention relates to hush pipe technical field of processing equipment, specially a kind of hush pipe pressurizing unit.A kind of hush pipe pressurizing unit, including noise reduction tube grip rotating mechanism and hush pipe squeeze cutting mechanism；The noise reduction tube grip rotating mechanism includes hush pipe clamp assemblies and hush pipe rotary components；The hush pipe clamp assemblies include compacting part in pipe external compression component and pipe；The pipe external compression component includes at least eight arc compact heaps, is respectively arranged on the disk body and ring body at compact heap axial direction both ends, and the radius detector for detecting hush pipe radius；All compact heaps, which constitute one, has the torus of fixed inside radius.The device of the invention can be suitable for the extruding necking of different size hush pipes, and applicability is wide, and the device will be squeezed and is combined togather with cutting, high in machining efficiency.
Description
Technical field
The present invention relates to hush pipe technical field of processing equipment, specially a kind of hush pipe pressurizing unit.
Background technology
Silencer is the important measures that automobile reduces noise, is generally divided into three classes, and resistive (shape), resistance (shape) are answered
Conjunction property, the erasure effect of different materials is also different.Wherein, dissipative muffler is mainly by antipriming pipe, acoutic fibre board (acoustical cotton) group
At, place antipriming pipe, the silencer casing of acoutic fibre board needs to carry out extruding necking to its port during manufacturing, it is existing
Some hush pipe pressurizing units can only carry out extruding necking to the hush pipe of the same size of same model, and applicability is very poor, changes one
The hush pipe of size just can only more exchange device, processing cost is high.
Invention content
The present invention is in view of the problems of the existing technology, it is proposed that a kind of hush pipe pressurizing unit, the device can be applicable in
In the extruding necking of different size hush pipes, applicability is wide, and the device will be squeezed and is combined togather with cutting, processing efficiency
It is high.
The technical solution adopted by the present invention to solve the technical problems is：A kind of hush pipe pressurizing unit, including hush pipe
Rotating mechanism is clamped and hush pipe squeezes cutting mechanism；
The noise reduction tube grip rotating mechanism includes hush pipe clamp assemblies and hush pipe rotary components；
The hush pipe clamp assemblies include compacting part in pipe external compression component and pipe；
The pipe external compression component includes at least eight arc compact heaps, is respectively arranged on the disk at compact heap axial direction both ends
Body and ring body, and the radius detector for detecting hush pipe radius；
All compact heaps, which constitute one, has the torus of fixed inside radius；Each compact heap connects with hush pipe
Tactile side is opened there are two avris slot and a central channel, and the central channel is interior to be equipped with central pressing block, and side is equipped in the avris slot
The shape and the compact heap and noise reduction of side compression block, the central pressing block and the avris compact heap with hush pipe contact surface
The shape of pipe contact surface overlaps；
The opposite side that each avris compact heap is contacted with hush pipe is connected at least three avris motion bars, and connection is same
The avris motion bar of the one avris compact heap is fixed on same avris integrated board；Each central pressing block and hush pipe
The opposite side of contact is connected at least three central movable bars, and the central movable bar for connecting the same central pressing block is fixed on
On same centralization plate；
The avris compact heap axial direction both ends are respectively equipped with the avris drive shaft being connect with the disk body and the ring body, institute
It states disk body and the ring body is equipped with the avris driver slot moved radially for the avris drive shaft；The central pressing block axis
The central actuating shaft being connect with the disk body and the ring body is respectively equipped with to both ends, the disk body and the ring body, which are equipped with, to be supplied
The centre-drive slot that the central actuating shaft moves radially；The compact heap is equipped with towards disk body end and connect with the disk body
Main drive shaft, the disk body are equipped with the main driver slot moved radially for the main drive shaft；
The main drive shaft and movable signal transmitter are electrically connected, the avris drive shaft and the central actuating shaft with
Movable signal receiver is electrically connected, and the movable signal transmitter sends signal to the movable signal receiver makes the side
Side drive shaft and the central actuating shaft and the main drive shaft synchronizing moving；
The avris drive shaft and the central actuating shaft are electrically connected with the radius detector.
Preferably, compacting part includes at least four supporters for being contacted with noise reduction inside pipe wall, institute in the pipe
It states supporter and is equipped with the interior drive shaft being connect with the disk body, the disk body is interior equipped with being moved radially for the interior drive shaft
Driver slot, the interior drive shaft are electrically connected with the radius detector.
Preferably, the supporter is internally provided with iron core, the iron core, which is equipped with coil, makes the coil in energization shape
Under state, the supporter generates magnetic with noise reduction inside pipe wall contact surface.
Preferably, the hush pipe rotary components include the rotary shaft through the disk body, be coated on the disk body with
The shell of the ring body peripheral side houses the rotary barrel of at least 2/3rds shells, the rotary barrel and the rotation
Shaft rotates synchronously.
Preferably, the shell is equipped with heat emission hole.
Preferably, it includes Rack Body that the hush pipe, which squeezes cutting mechanism, it is set to the extruding of the Rack Body one side
Component is set to the cutting assembly of the Rack Body and the compression assemblies adjacent side, and drives the Rack Body rotation
Rotating seat.
Preferably, the compression assemblies include two extrusion partss for being symmetrical arranged and running simultaneously, it is each described crowded
Splenium part includes a discoid extrusion head, the flexible rotation axis being connect with the extrusion head, for the flexible rotation axis in two institutes
The Mobile base moved on extrusion parts connecting line is stated, the Rack Body is equipped with the shifting chute for Mobile base movement, the shifting
Dynamic seat is electrically connected with the radius detector.
Preferably, the cutting assembly includes cutter shell, around the cutting blade of cutter shell setting, and with institute
State the flexible rotation measuring axis of cutter shell connection；The cutter shell is circumferentially with several openings, and each opening is one accommodating
Cutting blade is additionally provided with the push-pull rod for the cutting blade being released or being pulled in the opening, and driving in the cutter shell
The trigger of the push-pull rod action.
Preferably, the avris slot and the central channel two sides are axially respectively equipped with row's guide openings, it is described to lead
It is equipped with into opening and is oriented to ball.
Preferably, the avris slot and the central channel two sides are radially respectively equipped with guide protrusions, the center pressure
Tight block and avris compact heap two sides are respectively equipped with the guide groove being used cooperatively with the guide protrusions.
The invention has the advantages that the device can be suitable for the extruding necking of different size hush pipes, applicability is wide,
And the device will be squeezed and is combined togather with cutting, it is high in machining efficiency；Disappeared by the hush pipe clamp assemblies clamping of the present apparatus
Sound tube substantially increases stability of the hush pipe in extruding or cutting.
Description of the drawings
Fig. 1 is a kind of vertical view of hush pipe pressurizing unit hush pipe clamp assemblies of the present invention；
Fig. 2 is the part-structure schematic diagram of hush pipe clamp assemblies in Fig. 1；
Fig. 3 is the structural schematic diagram that a kind of hush pipe pressurizing unit hush pipe of the present invention squeezes cutting mechanism；
Wherein, 1, compact heap, 2, disk body, 3, ring body, 11, central pressing block, 12, avris compact heap, 13, avris activity
Bar, 14, avris integrated board, 15, central movable bar, 16, centralization plate, 4, supporter, 5, rotary shaft, 61, Rack Body, 62,
Rotating seat, 63, compression assemblies, 64, cutting assembly.
Specific implementation mode
Technical solution to further illustrate the present invention below with reference to the accompanying drawings and specific embodiments.
As shown in Figure 1 to Figure 3, a kind of hush pipe pressurizing unit, including noise reduction tube grip rotating mechanism and hush pipe squeeze
Cutting mechanism.The noise reduction tube grip rotating mechanism includes hush pipe clamp assemblies and hush pipe rotary components.The hush pipe
Clamp assemblies include compacting part in pipe external compression component and pipe.
The pipe external compression component includes at least eight arc compact heaps 1, is respectively arranged on the axial both ends of the compact heap 1
Disk body 2 and ring body 3, and the radius detector for detecting hush pipe radius.
All compact heaps 1, which constitute one, has the torus of fixed inside radius, can choose a conventional hush pipe
Inside radius of the outer radius as torus.Each compact heap 1 and hush pipe contact side open that there are two in avris slot and one
Heart slot, the central channel is interior to be equipped with central pressing block 11, and avris compact heap 12, the central pressing block are equipped in the avris slot
11 and the avris compact heap 12 and hush pipe contact surface shape and the compact heap 1 and hush pipe contact surface shape weight
It closes, i.e. central pressing block 11 and the part that avris compact heap 12 is compact heap 1.
The opposite side that each avris compact heap 12 is contacted with hush pipe is connected at least three avris motion bars 13, side
Side motion bar 13 is uniformly arranged on avris compact heap 12.The avris motion bar 13 for connecting the same avris compact heap 12 is fixed
On same avris integrated board 14.The opposite side that each central pressing block 11 is contacted with hush pipe is connected at least three
Lever of being indecisive and changeable 15, central movable bar 15 are uniformly arranged on central pressing block 11.It connects in the same central pressing block 11
Lever of being indecisive and changeable 15 is fixed on same centralization plate 16.
The axial both ends of the avris compact heap 12 are respectively equipped with the avris driving being connect with the disk body 2 and the ring body 3
Axis, the disk body 2 and the ring body 3 are equipped with the avris driver slot moved radially for the avris drive shaft.The center
The axial both ends of compact heap 11 are respectively equipped with the central actuating shaft being connect with the disk body 2 and the ring body 3, the disk body 2 and institute
It states ring body 3 and is equipped with the centre-drive slot moved radially for the central actuating shaft.The compact heap 1 is set towards 2 end of disk body
There are the main drive shaft being connect with the disk body 2, the disk body 2 to be equipped with the main driver slot moved radially for the main drive shaft.
The main drive shaft and movable signal transmitter are electrically connected, the avris drive shaft and the central actuating shaft with
Movable signal receiver is electrically connected, and the movable signal transmitter sends signal to the movable signal receiver makes the side
Side drive shaft and the central actuating shaft and the main drive shaft synchronizing moving.The avris drive shaft and the central actuating shaft
It is electrically connected with the radius detector.When main drive shaft moves, avris drive shaft and central actuating shaft are synchronized with main drive shaft
Mobile, when avris drive shaft or central actuating shaft are individually moved, main drive shaft is motionless.
When to hush pipe external stability, first hush pipe is put into the region that compact heap 1 surrounds, and passes through radius detector
Detect hush pipe outer radius, when the outer radius of hush pipe be equal to torus inside radius when, then move main drive shaft together with
Avris drive shaft and central actuating shaft will be compressed by compact heap 1 outside hush pipe.When the outer radius of hush pipe is more than torus
Inside radius when, first moving main drive shaft will be pressed together with avris drive shaft and central actuating shaft by compact heap 1 outside hush pipe
Tightly, two avris drive shafts for then moving compact heap 1 are further compressed hush pipe by avris compact heap 12.Work as hush pipe
Outer radius when being less than the inside radius of torus, be spaced mobile main drive shaft together with corresponding avris drive shaft and central actuating shaft
It will be compressed outside hush pipe by compact heap 1, the central actuating shaft for then moving compact heap 1 is further by central pressing block 11
Hush pipe is compressed.
Compacting part includes at least four supporters 4 for being contacted with noise reduction inside pipe wall, the supporter 4 in the pipe
Equipped with the interior drive shaft being connect with the disk body 2, the disk body 2 is equipped with the interior driving moved radially for the interior drive shaft
Slot, the interior drive shaft are electrically connected with the radius detector.When hush pipe external stability is good and then mobile interior drive shaft
It will be securely fixed inside hush pipe by supporter 4.
The supporter 4 is internally provided with iron core, and the iron core is equipped with coil, and the coil makes described in the energized state
Supporter 4 generates magnetism with noise reduction inside pipe wall contact surface, so that noise reduction inside pipe wall is securely fixed with supporter 4, further improves
The stability of hush pipe.
The hush pipe rotary components include the rotary shaft 5 through the disk body 2, are coated on the disk body 2 and the ring
The shell of 3 peripheral side of body houses the rotary barrel of at least 2/3rds shells, the rotary barrel and the rotary shaft 5
It rotates synchronously, drives the rotation of hush pipe clamp assemblies, stability good by rotary barrel and rotary shaft 5.The shell, which is equipped with, to be dissipated
Hot hole can distribute the heat that hush pipe clamp assemblies generate in time, to ensure that device being capable of normal operation.
It includes Rack Body 61 that the hush pipe, which squeezes cutting mechanism, is set to the compression assemblies of 61 one side of the Rack Body
63, it is set to the cutting assembly 64 of the Rack Body 61 and 63 adjacent side of the compression assemblies, and drive the Rack Body 61
The rotating seat 62 of rotation.Original state, compression assemblies 63 first pass through compression assemblies 63 and squeeze hush pipe towards hush pipe
Necking, then rotating Rack Body 61 by rotating seat 62 makes cutting assembly 64 towards hush pipe, then will by cutting assembly 64
Extra port is cut away, and rotating Rack Body 61 finally by rotating seat 62 makes its reset.
The compression assemblies 63 include two extrusion partss for being symmetrical arranged and running simultaneously, each extrusion parts packet
A discoid extrusion head is included, the flexible rotation axis being connect with the extrusion head, for the flexible rotation axis in two press sections
The Mobile base moved on part connecting line, the Rack Body 61 be equipped with for the Mobile base movement shifting chute, the Mobile base with
The radius detector is electrically connected.When work, two extrusion heads are first respectively placed in the both sides of noise reduction pipe port, then make to stretch
Contracting rotation axis rotates and so that two flexible rotation axis is moved towards certain distance by Mobile base, then shrinks rotation axis of stretching, makes
It obtains noise reduction and is in control first pass extruding, so that two flexible rotation axis is moved towards certain distance then through Mobile base, then stretch
Long flexible rotation axis so that noise reduction is in control second time extruding, makes two flexible rotation axis move towards then through Mobile base
Then certain distance shrinks rotation axis of stretching so that and noise reduction is in control third all over squeezing, and recycles, is squeezed with being finally completed according to this,
Flexible rotation axis is less than previously elongation or the distance shunk when the secondary distance shunk or extended, so that noise reduction pipe port Stepwize Shrink
To setting state.
The cutting assembly 64 include cutter shell, around the cutter shell setting cutting blade, and with the cutter
The flexible rotation measuring axis of shell connection.The cutter shell is circumferentially with several openings, and each opening accommodating one is cutter
Piece is additionally provided with the push-pull rod for the cutting blade being released or being pulled in the opening in the cutter shell, and is pushed away described in driving
The trigger of backward stick action.When work, the telescopic moving at the port of hush pipe radius minimum of flexible rotation measuring axis is first passed through
The length of extra port is detected, is then moved to cutter shell at the port position for needing to cut, and triggered by trigger
Cutting blade is released and is open by push-pull rod, is then cut to hush pipe port by cutting blade, after the completion of cutting, then is led to
It crosses push-pull rod and cutting blade is pulled in into opening, and cutting assembly 64 and compression assemblies 63 is made to reset.
The avris slot and the central channel two sides are axially respectively equipped with row's guide openings, are set in the guide openings
There is guiding ball.Contact friction can be reduced by being oriented to ball, is conducive to compact heap 1 and is compressed with central pressing block 11 or avris
Block 12 relatively moves.
The avris slot and the central channel two sides are radially respectively equipped with guide protrusions, the central pressing block 11 and institute
It states 12 two sides of avris compact heap and is respectively equipped with the guide groove being used cooperatively with the guide protrusions.It is convex by guide groove and guiding
Orientation can be played by rising, and be conducive to compact heap 1 and relatively moved with central pressing block 11 or avris compact heap 12.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the design of the present invention
It is defined with range.Under the premise of not departing from design concept of the present invention, technical side of the ordinary people in the field to the present invention
The all variations and modifications that case is made, should all drop into protection scope of the present invention, the claimed technology contents of the present invention,
Through all recording in detail in the claims.
Claims (8)
1. a kind of hush pipe pressurizing unit, it is characterised in that：Cutting machine is squeezed including noise reduction tube grip rotating mechanism and hush pipe
Structure；
The noise reduction tube grip rotating mechanism includes hush pipe clamp assemblies and hush pipe rotary components；
The hush pipe clamp assemblies include compacting part in pipe external compression component and pipe；
The pipe external compression component includes at least eight arc compact heaps（1）, it is respectively arranged on the compact heap（1）Axial both ends
Disk body（2）And ring body（3）, and the radius detector for detecting hush pipe radius；
All compact heaps（1）Constituting one has the torus of fixed inside radius；Each compact heap（1）With hush pipe
Contact side is opened there are two avris slot and a central channel, and the central channel is interior to be equipped with central pressing block（11）, in the avris slot
Equipped with avris compact heap（12）, the central pressing block（11）And the avris compact heap（12）With the shape of hush pipe contact surface
With the compact heap（1）It is overlapped with the shape of hush pipe contact surface；
Each avris compact heap（12）The opposite side contacted with hush pipe is connected at least three avris motion bars（13）, even
Connect the same avris compact heap（12）Avris motion bar（13）It is fixed on same avris integrated board（14）On；It is each it is described in
Heart compact heap（11）The opposite side contacted with hush pipe is connected at least three central movable bars（15）, connect the same center
Compact heap（11）Central movable bar（15）It is fixed on same centralization plate（16）On；
The avris compact heap（12）Axial both ends are respectively equipped with and the disk body（2）With the ring body（3）The avris of connection drives
Moving axis, the disk body（2）With the ring body（3）It is equipped with the avris driver slot moved radially for the avris drive shaft；Institute
State central pressing block（11）Axial both ends are respectively equipped with and the disk body（2）With the ring body（3）The central actuating shaft of connection, institute
State disk body（2）With the ring body（3）It is equipped with the centre-drive slot moved radially for the central actuating shaft；The compact heap
（1）Towards disk body（2）End is equipped with and the disk body（2）The main drive shaft of connection, the disk body（2）Equipped with for the main drive shaft
The main driver slot moved radially；
The main drive shaft and the electric connection of movable signal transmitter, the avris drive shaft and the central actuating shaft and movement
Signal receiver is electrically connected, and the movable signal transmitter sends signal to the movable signal receiver makes the avris drive
Moving axis and the central actuating shaft and the main drive shaft synchronizing moving；
The avris drive shaft and the central actuating shaft are electrically connected with the radius detector；
Compacting part includes at least four supporter for being contacted with noise reduction inside pipe wall in the pipe（4）, the supporter（4）
Equipped with the disk body（2）The interior drive shaft of connection, the disk body（2）Equipped with the interior drive moved radially for the interior drive shaft
Dynamic slot, the interior drive shaft are electrically connected with the radius detector；
The hush pipe rotary components include running through the disk body（2）Rotary shaft（5）, it is coated on the disk body（2）With it is described
Ring body（3）The shell of peripheral side houses the rotary barrel of at least 2/3rds shells, the rotary barrel and the rotation
Axis（5）It rotates synchronously.
2. a kind of hush pipe pressurizing unit according to claim 1, it is characterised in that：The supporter（4）It is internally provided with
Iron core, the iron core are equipped with coil, and the coil makes the supporter in the energized state（4）With noise reduction inside pipe wall contact surface
It generates magnetic.
3. a kind of hush pipe pressurizing unit according to claim 1, it is characterised in that：The shell is equipped with heat emission hole.
4. a kind of hush pipe pressurizing unit according to claim 1, it is characterised in that：The hush pipe squeezes cutting mechanism
Including Rack Body（61）, it is set to the Rack Body（61）The compression assemblies of one side（63）, it is set to the Rack Body（61）With institute
State compression assemblies（63）The cutting assembly of adjacent side（64）, and drive the Rack Body（61）The rotating seat of rotation（62）.
5. a kind of hush pipe pressurizing unit according to claim 4, it is characterised in that：The compression assemblies（63）Including two
A extrusion parts being symmetrical arranged and run simultaneously, each extrusion parts includes a discoid extrusion head, with the extruding
The flexible rotation axis of head connection, it is described for the Mobile base that the flexible rotation axis moves on the two extrusion parts connecting lines
Rack Body（61）Equipped with the shifting chute for Mobile base movement, the Mobile base is electrically connected with the radius detector.
6. a kind of hush pipe pressurizing unit according to claim 4, it is characterised in that：The cutting assembly（64）Including cutting
Knife shell, surrounds the cutting blade of cutter shell setting, and the flexible rotation measuring axis being connect with the cutter shell；It is described to cut
Knife shell is circumferentially with several openings, and each opening accommodating one is additionally provided with cutting blade and is cut described in the cutter shell
The push-pull rod of the opening, and the trigger of the driving push-pull rod action are released or pulled in cutting blade.
7. a kind of hush pipe pressurizing unit according to claim 1, it is characterised in that：The avris slot and the central channel
Two sides are axially respectively equipped with row's guide openings, are equipped in the guide openings and are oriented to ball.
8. a kind of hush pipe pressurizing unit according to claim 1, it is characterised in that：The avris slot and the central channel
Two sides are radially respectively equipped with guide protrusions, the central pressing block（11）And the avris compact heap（12）Two sides are set respectively
There is the guide groove being used cooperatively with the guide protrusions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710182609.9A CN106825277B (en) | 2017-03-24 | 2017-03-24 | A kind of hush pipe pressurizing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710182609.9A CN106825277B (en) | 2017-03-24 | 2017-03-24 | A kind of hush pipe pressurizing unit |
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| Publication Number | Publication Date |
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| CN106825277A CN106825277A (en) | 2017-06-13 |
| CN106825277B true CN106825277B (en) | 2018-08-03 |
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| CN201710182609.9A Active CN106825277B (en) | 2017-03-24 | 2017-03-24 | A kind of hush pipe pressurizing unit |
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| CN111576295B (en) * | 2020-06-11 | 2021-05-14 | 福建春锦市政园林有限公司 | A dry branch fallen leaves collection compression equipment for in ecological garden |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120008551A (en) * | 2010-07-17 | 2012-01-31 | 주식회사 케이엘에스 | Device for manufacturing axispipe and method for manufacturing axispipe of lamppost |
| CN103302194B (en) * | 2013-06-19 | 2016-01-20 | 广州大峰精密工业有限公司 | The processing technology of hush pipe |
| JP6433350B2 (en) * | 2015-03-19 | 2018-12-05 | 株式会社三五 | Clamping device and spinning processing device equipped with the device |
| CN104942171B (en) * | 2015-07-03 | 2016-09-07 | 苏州昌飞自动化设备厂 | The lower mold clamping package assembling of cylindrical battery packaging machine |
| CN105397173B (en) * | 2015-11-14 | 2017-11-10 | 江苏福吉特管业有限公司 | A kind of pipe cutting machine |
| CN205362842U (en) * | 2016-03-07 | 2016-07-06 | 松阳上上德盛不锈钢有限公司 | Rotation type pipe cutting machine |
| CN206689322U (en) * | 2017-03-24 | 2017-12-01 | 湖州新兴汽车部件有限公司 | A kind of hush pipe pressurizing unit |
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