CN110000235A - A kind of Extrusion Process of Aluminum Alloy Profile die sleeve - Google Patents
A kind of Extrusion Process of Aluminum Alloy Profile die sleeve Download PDFInfo
- Publication number
- CN110000235A CN110000235A CN201910392132.6A CN201910392132A CN110000235A CN 110000235 A CN110000235 A CN 110000235A CN 201910392132 A CN201910392132 A CN 201910392132A CN 110000235 A CN110000235 A CN 110000235A
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- Prior art keywords
- close
- bottom plate
- inlet pipe
- water inlet
- aluminum alloy
- 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.)
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- 238000001125 extrusion Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 20
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 50
- 239000000498 cooling water Substances 0.000 claims abstract description 26
- 238000007493 shaping process Methods 0.000 claims abstract description 17
- 230000000694 effects Effects 0.000 claims abstract description 16
- 239000000945 filler Substances 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 26
- 229910052782 aluminium Inorganic materials 0.000 abstract description 26
- 239000004411 aluminium Substances 0.000 abstract description 15
- 238000000465 moulding Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 description 6
- 230000001960 triggered effect Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C25/00—Profiling tools for metal extruding
- B21C25/02—Dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C29/00—Cooling or heating work or parts of the extrusion press; Gas treatment of work
- B21C29/003—Cooling or heating of work
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Of Metal (AREA)
Abstract
The invention discloses a kind of Extrusion Process of Aluminum Alloy Profile die sleeves, including bottom plate, the output end of the telescopic cylinder is fixedly installed upper module, the upper module is provided through screw rod close to the side activity of crossbeam, activity is provided through nut seat on the screw rod, the nut seat is symmetrically fixedly installed frizzen close to the side of bottom plate, and the upper module is fixedly installed shaping mould briquetting close to the side of bottom plate；The lower module offers model groove and detent angle close to the side of shaping mould briquetting correspondence, and cylinder close button and circulation pump startup assembly are respectively arranged in the groove；It is provided with and communicated with lower die water inlet pipe on the cooling water tank, is provided with lower circulating pump on the lower die water inlet pipe.The present invention provides Extrusion Process of Aluminum Alloy Profile die sleeves can fine-tune modal position after molding when the thickness requirement difference of aluminium, and circulating pump can be started automatically after squeezing, cooled down by condensed water to aluminum profile, accelerates to be cooled and shaped, effectively improve production efficiency.
Description
Technical field
The present invention relates to aluminium product technical field, specially a kind of Extrusion Process of Aluminum Alloy Profile die sleeve.
Background technique
In the prior art, application No. is a kind of aluminum section extruder of " 201810374151.1 ", second transverse slat
Outer cover is equipped with annular slab, and the left and right sides bilateral symmetry of the top of the annular slab is equipped with left compressing structure and right clamping frame
Structure, the left compressing structure include third transverse slat, and the bottom right side of the third transverse slat passes through the second riser and the second transverse slat
The upper surface in left side is welded, and the middle part of first transverse slat is vertically-mounted a threaded rod, the lower end of the threaded rod and bearing
The outer ring lower end of the welding of inner ring upper end, the bearing is welded by the upper surface of connecting rod and annular slab, the bottom of the annular slab
Portion and the top of lower die, which roll, is equipped with rolling bearing, which can squeeze the aluminium sheet of different thickness
Molding, it is easy to operate, it squeezes quickly, effectively prevents from upwarping outside aluminium sheet, improve extruding quality, while reducing aluminium sheet
Frictional force between annular slab and lower die, effectively prevents aluminium sheet from scratching.
But in use, however it remains more apparent defect: 1, when the thickness of aluminium sheet is different, need into
When the different degrees of extruding of row, above-mentioned apparatus mainly adjusts distance by threaded rod, but threaded rod adjust it is not fine enough, it is difficult
To cope with the higher situation of processing request, fineness is lower；2, aluminium needs to cool in time and take off after extrusion forming
Otherwise mould will affect subsequent handling, to influence the production efficiency and yield of entire aluminum profile, lack in above-mentioned apparatus to crowded
The rate of the structure that aluminium after pressure cools down, natural heat dissipation is lower.
Summary of the invention
The purpose of the present invention is to provide a kind of Extrusion Process of Aluminum Alloy Profile die sleeves, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the invention provides the following technical scheme:
A kind of Extrusion Process of Aluminum Alloy Profile die sleeve, including bottom plate are fixedly installed support column on the bottom plate, set on the support column
It is equipped with cylinder start button, the support column is successively fixedly installed crossbeam, guided way and lower module, the crossbeam from top to bottom
It is symmetrically arranged with telescopic cylinder close to the side of bottom plate, the telescopic cylinder and cylinder start button are electrically connected, described flexible
The output end of cylinder is fixedly installed upper module, and the upper module is provided through screw rod close to the side activity of crossbeam, described
Rotating handle is fixedly installed on screw rod, activity is provided through nut seat on the screw rod, and the nut seat is arranged in upper mold
In the inner cavity of block, the nut seat is symmetrically fixedly installed frizzen close to the side of bottom plate, and the upper module is close to bottom plate
Side is fixedly installed shaping mould briquetting；
The lower module offers model groove and detent angle, the model groove close to the side of shaping mould briquetting correspondence
It is connected with detent angle, the lower module symmetrically opens up fluted in the two sides of model groove, is respectively arranged in the groove
Cylinder close button and circulation pump startup assembly, the cylinder close button and telescopic cylinder are electrically connected；
The bottom plate is provided with cooling water tank far from the side of support column, is provided with and communicated on the cooling water tank soft into water
Pipe, the water supply hose are communicated with upper mold water inlet pipe by connector one, and the upper mold water inlet pipe is provided with and communicated with upper mold water outlet
Pipe, the upper mold outlet pipe are arranged in the inner cavity of shaping mould briquetting, and the upper mold outlet pipe is communicated with out by connector two
Water hose, the delivery hose are connected on cooling water tank, and circulating pump, the upper circulation are provided on the upper mold water inlet pipe
Pump and circulation pump startup assembly are electrically connected；
Lower die water inlet pipe is provided with and communicated on the cooling water tank, the inner cavity of lower module is arranged in the lower die water inlet pipe
In, lower circulating pump is provided on the lower die water inlet pipe, the lower circulating pump and circulation pump startup assembly are electrically connected, under described
Mould water inlet pipe is provided with and communicated with lower die outlet pipe, and the lower die outlet pipe is connected on cooling water tank.
Preferably, the upper module is provided with annulus bearing, the screw rod at the mounting hole that the side of crossbeam opens up
Activity is through setting in annulus bearing.
Preferably, the screw rod is symmetrically fixedly installed limited block far from one end of rotating handle.
Preferably, the position of the groove and frizzen is corresponding.
Preferably, the cooling water tank offers filler close to the side of crossbeam, and the cooling water tank is close to bottom plate
Side offers discharge outlet.
Preferably, the inner wall setting of the upper mold outlet pipe assembly die briquetting, the lower die water inlet pipe is in lower module
The outer wall setting of model groove is bonded in the mounting groove opened up.
Preferably, the bottom plate is provided with non-slip mat far from the side of support column.
Compared with prior art, the beneficial effects of the present invention are:
1, when needing to be processed into the aluminium of different-thickness, the spacing that model squeezes in the present apparatus can be carried out by screw rod
It corresponds to and adjusts, because the displacement that one circle of screw rod rotation generates is smaller, adjustment is more accurate, effectively improves the processing essence of aluminium
Degree；
2, when Extrusion Process of Aluminum Alloy Profile is to predetermined position, the present apparatus can be automatically stopped telescopic cylinder and continue to push, and start
Circulating pump cools down to the aluminium of extrusion forming, so that aluminium is quickly cooled to type, will not influence subsequent handling, compared to biography
For the natural cooling of system, which can effectively promote the production efficiency and yield of aluminum profile.
The present invention provides Extrusion Process of Aluminum Alloy Profile die sleeves, and after to molding when the thickness requirement difference of aluminum profile, the present apparatus can
To fine-tune by screw rod to modal position, and circulating pump can be started automatically after the completion of squeezing, by condensed water to aluminium
Profile cools down, and accelerates to be cooled and shaped, effectively improves production efficiency.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is enlarged drawing at the A in Fig. 1 of the invention.
In figure: 1 bottom plate, 2 support columns, 3 cylinder start buttons, 4 crossbeams, 5 guided ways, 6 lower modules, 7 telescopic cylinders, on 8
Module, 9 screw rods, 10 annulus bearings, 11 rotating handles, 12 nut seats, 13 frizzens, 14 limited blocks, 15 shaping mould briquettings, 16 moulds
Type groove, 17 detent angles, 18 grooves, 19 cylinder close buttons, 20 circulation pump startup assemblies, 21 cooling water tanks, 22 filler, 23
Discharge outlet, 24 water supply hoses, 25 connectors one, 26 upper mold water inlet pipes, 27 upper mold outlet pipes, 28 connectors two, 29 delivery hoses,
Circulating pump, 31 lower die water inlet pipes, 32 lower circulating pumps, 33 lower die outlet pipes, 34 non-slip mats on 30.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The present invention provides a kind of technical solution referring to FIG. 1-2:
A kind of Extrusion Process of Aluminum Alloy Profile die sleeve, including bottom plate 1 are fixedly installed support column 2 on bottom plate 1, are provided on support column 2
Cylinder start button 3, support column 2 are successively fixedly installed crossbeam 4, guided way 5 and lower module 6 from top to bottom, and crossbeam 4 is the bottom of close to
The side of plate 1 is symmetrically arranged with telescopic cylinder 7, other models such as SC63 can be used in telescopic cylinder 7, and telescopic cylinder 7 and cylinder open
Dynamic button 3 is electrically connected, and the output end of telescopic cylinder 7 is fixedly installed upper module 8, and upper module 8 is close to the activity of the side of crossbeam 4
It is provided through screw rod 9, rotating handle 11 is fixedly installed on screw rod 9, activity is provided through nut seat 12 on screw rod 9, rotation
Changing hands handle 11 can drive screw rod 9 to rotate, so that nut seat 12 is slided along screw rod 9, upper module 8 is arranged in nut seat 12
In inner cavity, nut seat 12 is symmetrically fixedly installed frizzen 13 close to the side of bottom plate 1, and upper module 8 is solid close to the side of bottom plate 1
Surely it is provided with shaping mould briquetting 15.
Lower module 6 offers model groove 16 and detent angle 17, model groove close to the side of shaping mould briquetting 15 correspondence
16 are connected with detent angle 17, and the shape of shaping mould briquetting 15 is adapted therewith, on the one hand the effect at detent angle 17 is to molding
Die briquetting 15 is limited, deviation when preventing from squeezing, and is on the other hand the stickiness increased when squeezing, is prevented material from overflowing, under
Module 6 symmetrically opens up fluted 18 in the two sides of model groove 16, and cylinder close button 19 is respectively arranged in groove 18 and is followed
Ring pump startup assembly 20, cylinder close button 19 and telescopic cylinder 7 are electrically connected, and when cylinder close button 19 is triggered, are stretched
Contracting cylinder 7 closes and keeps original stroke.
Bottom plate 1 is provided with cooling water tank 21 far from the side of support column 2, is provided with and communicated with water supply hose on cooling water tank 21
24, water supply hose 24 is communicated with upper mold water inlet pipe 26 by connector 1, and upper mold water inlet pipe 26 is provided with and communicated with upper mold water outlet
Pipe 27, upper mold outlet pipe 27 are arranged in the inner cavity of shaping mould briquetting 15, and upper mold outlet pipe 27 is communicated with by connector 2 28
Delivery hose 29, delivery hose 29 are connected on cooling water tank 21, and circulating pump 30, upper circulation are provided on upper mold water inlet pipe 26
Other models such as CDLF can be used in pump 30, and upper circulating pump 30 and circulation pump startup assembly 20 are electrically connected, when circulation pump startup is total
When being triggered at 20, upper circulating pump 30 is started to work.
Lower die water inlet pipe 31 is provided with and communicated on cooling water tank 21, lower die water inlet pipe 31 is arranged in the inner cavity of lower module 6,
It is provided with lower circulating pump 32 on lower die water inlet pipe 31, lower circulating pump 32 can be used other models such as CDLF, lower circulating pump 32 and follow
Ring pump startup assembly 20 is electrically connected, and when circulation pump startup assembly 20 is triggered, lower circulating pump 32 is started to work, lower die water inlet
Pipe 31 is provided with and communicated with lower die outlet pipe 33, and lower die outlet pipe 33 is connected on cooling water tank 21.
Preferably as one, upper module 8 is provided with annulus bearing 10, silk at the mounting hole that the side of crossbeam 4 opens up
9 activity of bar is through being arranged in annulus bearing 10, and screw rod 9 can rotate in annulus bearing 10, and annulus bearing 10 provides activity
The effect of support and protection.
Preferably as one, the one end of screw rod 9 far from rotating handle 11 is symmetrically fixedly installed limited block 14, limited block 14
Effect be that nut seat 12 is prevented to be detached from from screw rod 9 on the move.
Preferably as one, the position of groove 18 and frizzen 13 is corresponding, can just be embedded in when frizzen 13 moves down
In groove 18.
Preferably as one, cooling water tank 21 offers filler 22 close to the side of crossbeam 4, and cooling water tank 21 is the bottom of close to
The side of plate 1 offers discharge outlet 23, can carry out adding water by filler 22, and drained or changed water by discharge outlet 23.
Preferably as one, the inner wall setting of 27 assembly die briquetting 15 of upper mold outlet pipe, lower die water inlet pipe 31 is under
The outer wall setting of model groove 16 is bonded in the mounting groove that module 6 opens up, such setting can be improved cooling effect, accelerate cold
Molding efficiency.
Preferably as one, bottom plate 1 is provided with non-slip mat 34 far from the side of support column 2, and non-slip mat 34 can closely inhale
It is attached on ground or desktop, anti-locking apparatus slides in operation.
Working principle: before use, according to the thickness that molding aluminium needs, the position of frizzen 13 is adjusted, because when triggering
When bar 13 moves down triggering cylinder close button 19, telescopic cylinder 7 stops working at once, no longer carries out moving down extruded aluminum, so
The height and position of frizzen 13 determines the thickness of Extrusion Process of Aluminum Alloy Profile, specifically, drives screw rod 9 to rotate by rotating handle 11,
So that nut seat 12 slides along screw rod 9, nut seat 12 drives the frizzen 13 of two sides mobile simultaneously in moving process, adjustment
When to suitable location, telescopic cylinder 7 is then started by cylinder start button 3, extrusion operation starts.
In work, telescopic cylinder 7 pushes upper module 8 to be pressed down against, when the frizzen 13 of two sides is displaced downwardly to meeting in groove 18
Cylinder close button 19 and circulation pump startup assembly 20 are triggered simultaneously, at this time, on the one hand, cylinder close button 19 is triggered, and stretches
Contracting cylinder 7 stop simultaneously keeping original stroke, aluminum profile at this time between shaping mould briquetting 15 and model groove 16 by
Extrusion forming；On the other hand, circulation pump startup assembly 20 is triggered, so that upper circulating pump 30 and the starting of lower circulating pump 32, cooling
Condensed water in water tank 21 enters upper mold water inlet pipe 26 by water supply hose 24, then passes through upper mold outlet pipe 27 and delivery hose 29
It returns in cooling water tank 21, condensed water drops aluminum profile from top in shaping mould briquetting 15 in above-mentioned water-flowing path
Temperature in addition, the condensed water in cooling water tank 21 can also enter lower module 6 by lower die water inlet pipe 31, then passes through lower die outlet pipe
33 return in cooling water tank 21, and using heat transfer, condensed water fitting model groove 16 is from side under in above-mentioned water-flowing path
Side cools down to aluminum profile, and then reaches comprehensive while cooling purpose, and avoiding aluminum profile partial cooling unevenness causes
Face crack, also improve the cooling and shaping efficiency of aluminum profile, effectively improve output.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (7)
1. a kind of Extrusion Process of Aluminum Alloy Profile die sleeve, including bottom plate (1), it is characterised in that: be fixedly installed support column on the bottom plate (1)
(2), it is provided with cylinder start button (3) on the support column (2), the support column (2) is successively fixedly installed from top to bottom
Crossbeam (4), guided way (5) and lower module (6), the crossbeam (4) are symmetrically arranged with telescopic cylinder close to the side of bottom plate (1)
(7), the telescopic cylinder (7) and cylinder start button (3) are electrically connected, the output end fixed setting of the telescopic cylinder (7)
Have upper module (8), side activity of the upper module (8) close to crossbeam (4) is provided through screw rod (9), on the screw rod (9)
It is fixedly installed rotating handle (11), activity is provided through nut seat (12) on the screw rod (9), and the nut seat (12) sets
It sets in the inner cavity of upper module (8), the nut seat (12) is symmetrically fixedly installed frizzen close to the side of bottom plate (1)
(13), the upper module (8) is fixedly installed shaping mould briquetting (15) close to the side of bottom plate (1)；
Side correspondence of the lower module (6) close to shaping mould briquetting (15) offers model groove (16) and detent angle (17),
The model groove (16) is connected with detent angle (17), and the lower module (6) symmetrically opens up in the two sides of model groove (16)
Fluted (18) are respectively arranged with cylinder close button (19) and circulation pump startup assembly (20) in the groove (18), described
Cylinder close button (19) and telescopic cylinder (7) are electrically connected；
The bottom plate (1) is provided with cooling water tank (21) far from the side of support column (2), is connected to and sets on the cooling water tank (21)
Be equipped with water supply hose (24), the water supply hose (24) is communicated with upper mold water inlet pipe (26) by connector one (25), it is described on
Mould water inlet pipe (26) is provided with and communicated with upper mold outlet pipe (27), and the upper mold outlet pipe (27) is arranged in shaping mould briquetting (15)
In inner cavity, the upper mold outlet pipe (27) is communicated with delivery hose (29) by connector two (28), the delivery hose (29)
It is connected on cooling water tank (21), is provided with circulating pump (30) on the upper mold water inlet pipe (26), the upper circulating pump (30)
It is electrically connected with circulation pump startup assembly (20)；
It is provided with and communicated with lower die water inlet pipe (31) on the cooling water tank (21), the lower die water inlet pipe (31) is arranged in lower module
(6) it in inner cavity, is provided with lower circulating pump (32) on the lower die water inlet pipe (31), the lower circulating pump (32) and circulating pump open
Dynamic assembly (20) are electrically connected, and the lower die water inlet pipe (31) is provided with and communicated with lower die outlet pipe (33), the lower die outlet pipe
(33) it is connected on cooling water tank (21).
2. a kind of Extrusion Process of Aluminum Alloy Profile die sleeve according to claim 1, it is characterised in that: the upper module (8) is close to crossbeam
(4) it is provided at the mounting hole that side opens up annulus bearing (10), screw rod (9) activity is through setting in annulus bearing
(10) in.
3. a kind of Extrusion Process of Aluminum Alloy Profile die sleeve according to claim 1, it is characterised in that: the screw rod (9) is far from rotation hand
One end of handle (11) is symmetrically fixedly installed limited block (14).
4. a kind of Extrusion Process of Aluminum Alloy Profile die sleeve according to claim 1, it is characterised in that: the groove (18) and frizzen
(13) position is corresponding.
5. a kind of Extrusion Process of Aluminum Alloy Profile die sleeve according to claim 1, it is characterised in that: the cooling water tank (21) is close to horizontal
The side of beam (4) offers filler (22), and the cooling water tank (21) offers discharge outlet close to the side of bottom plate (1)
(23)。
6. a kind of Extrusion Process of Aluminum Alloy Profile die sleeve according to claim 1, it is characterised in that: upper mold outlet pipe (27) fitting
The inner wall of shaping mould briquetting (15) is arranged, and the lower die water inlet pipe (31) is bonded model in the mounting groove that lower module (6) opens up
The outer wall of groove (16) is arranged.
7. a kind of Extrusion Process of Aluminum Alloy Profile die sleeve according to claim 1, it is characterised in that: the bottom plate (1) is far from support column
(2) side is provided with non-slip mat (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910392132.6A CN110000235A (en) | 2019-05-13 | 2019-05-13 | A kind of Extrusion Process of Aluminum Alloy Profile die sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910392132.6A CN110000235A (en) | 2019-05-13 | 2019-05-13 | A kind of Extrusion Process of Aluminum Alloy Profile die sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110000235A true CN110000235A (en) | 2019-07-12 |
Family
ID=67176618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910392132.6A Withdrawn CN110000235A (en) | 2019-05-13 | 2019-05-13 | A kind of Extrusion Process of Aluminum Alloy Profile die sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110000235A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110802124A (en) * | 2019-11-23 | 2020-02-18 | 湖南展冠建材有限责任公司 | Extrusion die for producing aluminum frame profile |
| CN113103515A (en) * | 2021-03-15 | 2021-07-13 | 重庆赋天智能科技有限公司 | Injection molding precision mold for protective sleeve shell of tablet personal computer |
-
2019
- 2019-05-13 CN CN201910392132.6A patent/CN110000235A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110802124A (en) * | 2019-11-23 | 2020-02-18 | 湖南展冠建材有限责任公司 | Extrusion die for producing aluminum frame profile |
| CN113103515A (en) * | 2021-03-15 | 2021-07-13 | 重庆赋天智能科技有限公司 | Injection molding precision mold for protective sleeve shell of tablet personal computer |
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| PB01 | Publication | ||
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Application publication date: 20190712 |