CN105772566A - Integral tee joint copper pipe forming mould - Google Patents
Integral tee joint copper pipe forming mould Download PDFInfo
- Publication number
- CN105772566A CN105772566A CN201610298464.4A CN201610298464A CN105772566A CN 105772566 A CN105772566 A CN 105772566A CN 201610298464 A CN201610298464 A CN 201610298464A CN 105772566 A CN105772566 A CN 105772566A
- Authority
- CN
- China
- Prior art keywords
- drift
- copper pipe
- center
- hole
- cavity
- 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.)
- Pending
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 61
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 61
- 239000010949 copper Substances 0.000 title claims abstract description 61
- 238000004080 punching Methods 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 238000003466 welding Methods 0.000 abstract description 6
- 238000005498 polishing Methods 0.000 abstract description 4
- 238000002347 injection Methods 0.000 abstract description 3
- 239000007924 injection Substances 0.000 abstract description 3
- 238000007906 compression Methods 0.000 abstract 1
- 239000011148 porous material Substances 0.000 abstract 1
- 238000000465 moulding Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 7
- 230000002950 deficient Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000002459 sustained effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/34—Perforating tools; Die holders
-
- 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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/28—Perforating, i.e. punching holes in tubes or other hollow bodies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention discloses an integral tee joint copper pipe forming mould. The mould comprises a left punch (1), a left punch fixing rack (2), a right punch (3), a right punch fixing rack (4), an upper mould cavity I (5), an upper mould cushion block (6), a lower mould cavity I (7), a lower ejection block (8), a lower ejection block fixing plate (9) and a bottom plate (10). After the upper mould cavity I (5) and the lower mould cavity I (7) are closed, a round hole (11) through left and right is formed in the middle. A vertical through hole (12) with the pore diameter the same as that of the round hole (11) is formed in the lower mould cavity I (7) from the center to the lower portion. The left punch (1) and the right punch (3) penetrate into the round hole (11) from the left end and the right end. A water injection channel (13) is formed in the axial center of the left punch (1). The lower ejection block (8) penetrates into the vertical through hole (12) from the lower portion. The mould can form a double-compression tee joint copper pipe integrally, the welding and polishing working procedures are avoided, and the product rejection rate can be reduced greatly.
Description
Technical field
The present invention relates to the manufacture field of heating, refrigeration system copper pipe, especially relate to a kind of triplet copper pipe integrated mould.
Background technology
Heating for building, the connection of refrigeration system many employings copper pipe.Complicated pipeline needs a lot of triplet copper pipes to connect, it is a kind of double card pressure type triplet copper pipe as shown in Figure 1, the general processing mode of this triplet copper pipe is, connecing a copper pipe again with welding manner outside the copper pipe of two-way and formed, namely there is weld seam at current this triplet copper pipe E place in FIG, due to the particular/special requirement of product purpose, welding process requirement is higher, also polishing after welding is good, polish, fraction defective is higher, so that high-volume adds can produce higher expense man-hour.
Summary of the invention
Problem to be solved by this invention is the defect overcoming above-mentioned prior art, it is provided that a kind of triplet copper pipe integrated mould, utilizes this mould that triplet copper pipe can be made one-body molded, not only can be mass-produced, and be substantially reduced product fraction defective.
nullThe technical scheme is that triplet copper pipe integrated mould of the present invention comprises two kinds，The first is mould I，Including left drift、Left drift fixed mount、Right drift、Right drift fixed mount、Model cavity on I、Upper die-cushion block、I counterdie die cavity、Lower jacking block、The fixing plate of lower jacking block and base plate，On described I, model cavity lower surface is from center to the left、Semi-circular groove is set to the right，Described I counterdie die cavity upper surface is from center to the left、Semi-circular groove is set to the right，On described I, after model cavity and described I counterdie die cavity matched moulds, middle part forms the circular hole that left and right is through，Described I counterdie die cavity center is additionally provided with downwards the vertical through hole identical with described circular hole aperture，Described left drift and described right drift penetrate described circular hole from two ends, left and right respectively，Described left drift axial centre arranges waterflood path，Described lower jacking block can penetrate described vertical through hole from lower section.
Described left drift and described right punch head are all provided with being set to Step Shaft.
Triplet copper pipe integrated mould of the present invention is mould II, including left drift, left drift fixed mount, right drift, right drift fixed mount, back punching head, back punching head fixed mount, model cavity on II, upper die-cushion block, II counterdie die cavity and base plate, on described II, model cavity lower surface is from center to the left, to the right, semi-circular groove is set backward, described II counterdie die cavity upper surface is from center to the left, to the right, semi-circular groove is set backward, formed from center to the left after model cavity and described II counterdie die cavity matched moulds on described II, to the right, threeway circular hole through backward, described threeway circular hole every through hole Shang Ju center equidistant is additionally provided with annular groove, described left drift, described right drift and described back punching head are respectively from left, right, rear end penetrates described threeway circular hole, described left drift axial centre arranges waterflood path.
Described left drift, described right drift and described back punching head front end are all provided with being set to Step Shaft.
The invention has the beneficial effects as follows: the upper model cavity of inventive die I, the circular hole that after counterdie die cavity matched moulds, formation left and right in portion's is through in a mold, vertical circular hole is additionally provided with downwards vertical through hole, left drift and right drift penetrate circular hole from two ends, left and right respectively, left drift axial centre arranges waterflood path, lower jacking block can penetrate vertical through hole from lower section, when molding tee T, can straight-through blank copper pipe be positioned in the middle part of circular hole, the straight-through blank copper pipe two ends of left and right drift extruding, it is injected simultaneously into water under high pressure, the copper material of straight-through blank copper pipe can produce mobility under the effect that high extruding force and high hydraulic pressure are strong, lower jacking block is forced to move down, thus forming threeway menifold in vertical through hole, molding complete after by threeway menifold flat mouth, namely triplet copper pipe is formed；The II of inventive die II is formed after model cavity, II counterdie die cavity matched moulds from center to the left, to the right, through backward threeway circular hole, when further molding is with the triplet copper pipe of annular groove, aforementioned molding three-way steel tube is placed in threeway circular hole, three ports of left and right, back punching head extruded piping branch tee copper pipe, it is injected simultaneously into water under high pressure, the copper material of triplet copper pipe is fitted completely the forming recess of mould II under high extruding force and high hydraulic pressure are strong, can molding with the triplet copper pipe of annular groove.Owing to left and right, the back punching head front end of mould I and mould II are all provided with being set to Step Shaft, so the triplet copper pipe molded is double card pressure type triplet copper pipe.Utilize watery distension forming technique by inventive die, triplet copper pipe can be made one-body molded, welding, polishing operation, not only can be mass-produced, and be substantially reduced product fraction defective.
Accompanying drawing explanation
Fig. 1 is a kind of double card pressure type triplet copper pipe schematic diagram of the prior art；
Fig. 2 is the structural representation of triplet copper pipe integrated mould I of the present invention；
Fig. 3 is the horizontal cross-sectional schematic of triplet copper pipe integrated mould II of the present invention；
Fig. 4 is longitudinal cross-sectional schematic of triplet copper pipe integrated mould II of the present invention；
Fig. 5 is the schematic diagram of the straight-through copper pipe of blank of the present invention；
Fig. 6 is the schematic diagram that the present invention passes through mould I molding triplet copper pipe；
Fig. 7 is the triplet copper pipe schematic diagram after I molding of blank copper pipe shown in Fig. 5；
Fig. 8 is that tee T shown in Fig. 7 is by the triplet copper pipe schematic diagram after menifold flat mouth；
Fig. 9 is the schematic diagram that the present invention passes through mould II watery distension type triplet copper pipe；
Figure 10 is the triplet copper pipe schematic diagram that the present invention passes through mould II molding.
Detailed description of the invention
The triplet copper pipe shaping mould of the present invention has two kinds, makees specifically to describe in detail to embodiments of the invention below in conjunction with accompanying drawing.
nullAs shown in Figure 2，Triplet copper pipe integrated mould I of the present invention includes left drift 1、Left drift fixed mount 2、Right drift 3、Right drift fixed mount 4、Model cavity 5 on I、Upper die-cushion block 6、I counterdie die cavity 7、Lower jacking block 8、The fixing plate 9 of lower jacking block and base plate 10，On I, model cavity 5 lower surface is from center to the left、Semi-circular groove is set to the right，I counterdie die cavity 7 upper surface is from center to the left、Semi-circular groove is set to the right，On I, after model cavity 5 and I counterdie die cavity 7 matched moulds, middle part forms the circular hole 11 that left and right is through，I counterdie die cavity 7 is additionally provided with downwards the vertical through hole 12 identical with circular hole 11 aperture from center，Left drift 1 is all provided with being set to Step Shaft with right drift 3 front end，Left drift 1 penetrates described circular hole 11 respectively with right drift 3 from two ends, left and right，Left drift 1 axial centre arranges waterflood path 13，Lower jacking block 8 can penetrate vertical through hole 12 from lower section.
nullSuch as Fig. 3、Shown in Fig. 4，Triplet copper pipe integrated mould II of the present invention includes left drift 1、Left drift fixed mount 2、Right drift 3、Right drift fixed mount 4、Back punching head 14、Back punching head fixed mount 15、Model cavity 5a on II、Upper die-cushion block 6、II counterdie die cavity 7a and base plate 10，On II, model cavity 5a lower surface is from center to the left、To the right、Semi-circular groove is set backward，II counterdie die cavity 7a upper surface is from center to the left、To the right、Semi-circular groove is set backward，Formed from center to the left after model cavity 5a and II counterdie die cavity 7a matched moulds on II、To the right、Threeway circular hole 16 through backward，Threeway circular hole 16 every through hole Shang Ju center equidistant is additionally provided with annular groove 17，Left drift 1、Right drift 3 is all provided with being set to Step Shaft with back punching head 14 front end，Left drift 1、Right drift 3 and back punching head 14 are respectively from left、Right、Rear end penetrates threeway circular hole 16，Left drift 1 axial centre arranges waterflood path 13.
As Fig. 5, Fig. 6, Fig. 7, Fig. 8 show the process pressing triplet copper pipe by mould I molding double card: straight-through for straight-through blank copper pipe is positioned in the middle part of the circular hole 11 of first molding；Left drift 1, right drift 2 extrude to center from left and right respectively, lower jacking block 8 from lower section tightly against, the straight-through copper pipe of blank is made to be in sealing state, by waterflood path 13 water filling, when hydraulic pressure reaches Mpa, left drift 1, right drift 2 thrust to center simultaneously, sustained water injection increases hydraulic pressure and reaches Mpa, the copper material of the straight-through copper pipe of blank produces mobility down by force at left drift 1, the high extruding force of right drift 2 and high hydraulic pressure, forces lower jacking block 8 to move down, thus vertical through hole 12 in formation threeway menifold；Namely threeway menifold flat mouth is completed one-body molded triplet copper pipe as shown in Figure 8.
As shown in Figure 9, Figure 10 for pressing the process of triplet copper pipe by mould II molding double card: in the threeway circular hole 16 that the triplet copper pipe shown in Fig. 8 is positioned over；The backward center extruding from left and right respectively of left drift 1, right drift 2, back punching head 14, triplet copper pipe is made to be in sealing state, by waterflood path 13 water filling, when hydraulic pressure reaches Mpa, left drift 1, right drift 2 and back punching head 16 thrust to center simultaneously, sustained water injection increases hydraulic pressure and reaches Mpa, and the copper material of triplet copper pipe is fitted completely the forming recess of mould II under the high extruding force of left drift 1, right drift 2 and back punching head 14 and high hydraulic pressure are strong, thus forming double card pressure triplet copper pipe.
Utilize watery distension forming technique one-body molded double card can press triplet copper pipe, welding, polishing operation by inventive die, not only can be mass-produced, and be substantially reduced product fraction defective.
Above-mentioned detailed description of the invention is the preferred embodiments of the present invention, can not type of the present invention be defined, and what other any made without departing from technical scheme change or the substitute mode of other equivalence, is included within protection scope of the present invention.
Claims (4)
- null1. a triplet copper pipe integrated mould I，It is characterized in that: it includes left drift (1)、Left drift fixed mount (2)、Right drift (3)、Right drift fixed mount (4)、Model cavity (5) on I、Upper die-cushion block (6)、I counterdie die cavity (7)、Lower jacking block (8)、The fixing plate (9) of lower jacking block and base plate (10)，On described I, model cavity (5) lower surface is from center to the left、Semi-circular groove is set to the right，Described I counterdie die cavity (7) upper surface is from center to the left、Semi-circular groove is set to the right，On described I, after model cavity (5) and described I counterdie die cavity (7) matched moulds, middle part forms the circular hole (11) that left and right is through，Described I counterdie die cavity (7) is additionally provided with downwards the vertical through hole (12) identical with described circular hole (11) aperture from center，Described left drift (1) and described right drift (3) penetrate described circular hole (11) respectively from two ends, left and right，Described left drift (1) axial centre arranges waterflood path (13)，Described lower jacking block (8) can penetrate described vertical through hole (12) from lower section.
- 2. triplet copper pipe integrated mould I according to claim 1, it is characterised in that: described left drift (1) and described right drift (3) front end are all provided with being set to Step Shaft.
- null3. a triplet copper pipe integrated mould II，It is characterized in that: it includes left drift (1)、Left drift fixed mount (2)、Right drift (3)、Right drift fixed mount (4)、Back punching head (14)、Back punching head fixed mount (15)、Model cavity (5a) on II、Upper die-cushion block (6)、II counterdie die cavity (7a) and base plate (10)，On described II, model cavity (5a) lower surface is from center to the left、To the right、Semi-circular groove is set backward，Described II counterdie die cavity (7a) upper surface is from center to the left、To the right、Semi-circular groove is set backward，Formed from center to the left after model cavity (5a) and described II counterdie die cavity (7a) matched moulds on described II、To the right、Threeway circular hole (16) through backward，Described threeway circular hole (16) every through hole Shang Ju center equidistant is additionally provided with annular groove (17)，Described left drift (1)、Described right drift (3) and described back punching head (14) are respectively from left、Right、Rear end penetrates described threeway circular hole (16)，Described left drift (1) axial centre arranges waterflood path (13).
- 4. triplet copper pipe integrated mould II according to claim 3, it is characterised in that: described left drift (1), described right drift (3) are all provided with being set to Step Shaft with described back punching head (14) front end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610298464.4A CN105772566A (en) | 2016-05-05 | 2016-05-05 | Integral tee joint copper pipe forming mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610298464.4A CN105772566A (en) | 2016-05-05 | 2016-05-05 | Integral tee joint copper pipe forming mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105772566A true CN105772566A (en) | 2016-07-20 |
Family
ID=56401884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610298464.4A Pending CN105772566A (en) | 2016-05-05 | 2016-05-05 | Integral tee joint copper pipe forming mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105772566A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058631A (en) * | 2018-08-03 | 2018-12-21 | 浙江铜加工研究院有限公司 | A kind of threeway pipe production method |
| CN113828696A (en) * | 2021-08-30 | 2021-12-24 | 佛山市永恒液压机械有限公司 | Three-way pipe forming device and forming method |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH295158A (en) * | 1950-09-18 | 1953-12-15 | Ici Ltd | Method and device for the production of pipe fittings. |
| DE19837130A1 (en) * | 1998-08-17 | 2000-03-02 | Siempelkamp Pressen Sys Gmbh | Method for shaping and linking two or more hollow sections uses internal hydraulic pressure with the workpiece held in a die |
| CN1711142A (en) * | 2002-11-08 | 2005-12-21 | 住友金属工业株式会社 | Profile element pipe for hydraulic bulging, hydraulic bulging device and method using the element pipe, and hydraulically bulged product |
| CN101332480A (en) * | 2008-06-07 | 2008-12-31 | 桂林电子科技大学 | Simple inside high-pressure forming method |
| CN201189531Y (en) * | 2008-05-19 | 2009-02-04 | 曹忠泉 | Improved bulging hydraulic press |
| CN201618779U (en) * | 2010-01-21 | 2010-11-03 | 江阴市南方管件制造有限公司 | Ejecting device for tee branch pipes adopting hydraulic bulging |
| KR20130038635A (en) * | 2011-10-10 | 2013-04-18 | 대신강업(주) | Hydroforming method of construction with t type connections joint manufacture device and method using the sam |
| CN202921738U (en) * | 2012-11-27 | 2013-05-08 | 江苏麦涛机电设备有限公司 | Thin-wall three-way pipe forming device |
| CN103920789A (en) * | 2014-05-06 | 2014-07-16 | 哈尔滨工业大学 | Internal high pressure forming die and method of elbow T-branch pipe |
| CN205056771U (en) * | 2015-10-09 | 2016-03-02 | 南昌航空大学 | A flexible die set for high -pressure forming in three -way pipe |
| CN105537364A (en) * | 2016-01-21 | 2016-05-04 | 连云港珍珠河石化管件有限公司 | Preparation method for bi-metal composite t-branch pipe |
| CN205571138U (en) * | 2016-05-05 | 2016-09-14 | 广东思豪液压机械有限公司 | Tee bend copper pipe integrated into one piece mould |
-
2016
- 2016-05-05 CN CN201610298464.4A patent/CN105772566A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH295158A (en) * | 1950-09-18 | 1953-12-15 | Ici Ltd | Method and device for the production of pipe fittings. |
| DE19837130A1 (en) * | 1998-08-17 | 2000-03-02 | Siempelkamp Pressen Sys Gmbh | Method for shaping and linking two or more hollow sections uses internal hydraulic pressure with the workpiece held in a die |
| CN1711142A (en) * | 2002-11-08 | 2005-12-21 | 住友金属工业株式会社 | Profile element pipe for hydraulic bulging, hydraulic bulging device and method using the element pipe, and hydraulically bulged product |
| CN201189531Y (en) * | 2008-05-19 | 2009-02-04 | 曹忠泉 | Improved bulging hydraulic press |
| CN101332480A (en) * | 2008-06-07 | 2008-12-31 | 桂林电子科技大学 | Simple inside high-pressure forming method |
| CN201618779U (en) * | 2010-01-21 | 2010-11-03 | 江阴市南方管件制造有限公司 | Ejecting device for tee branch pipes adopting hydraulic bulging |
| KR20130038635A (en) * | 2011-10-10 | 2013-04-18 | 대신강업(주) | Hydroforming method of construction with t type connections joint manufacture device and method using the sam |
| CN202921738U (en) * | 2012-11-27 | 2013-05-08 | 江苏麦涛机电设备有限公司 | Thin-wall three-way pipe forming device |
| CN103920789A (en) * | 2014-05-06 | 2014-07-16 | 哈尔滨工业大学 | Internal high pressure forming die and method of elbow T-branch pipe |
| CN205056771U (en) * | 2015-10-09 | 2016-03-02 | 南昌航空大学 | A flexible die set for high -pressure forming in three -way pipe |
| CN105537364A (en) * | 2016-01-21 | 2016-05-04 | 连云港珍珠河石化管件有限公司 | Preparation method for bi-metal composite t-branch pipe |
| CN205571138U (en) * | 2016-05-05 | 2016-09-14 | 广东思豪液压机械有限公司 | Tee bend copper pipe integrated into one piece mould |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058631A (en) * | 2018-08-03 | 2018-12-21 | 浙江铜加工研究院有限公司 | A kind of threeway pipe production method |
| CN113828696A (en) * | 2021-08-30 | 2021-12-24 | 佛山市永恒液压机械有限公司 | Three-way pipe forming device and forming method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103920795B (en) | A kind of heat expansion vibration combined forming process of solid particle of automobile rear axle housing | |
| CN105945087B (en) | A kind of extrusion process of wide tee | |
| CN103949523B (en) | A kind of equipment for complex pipes internal high pressure forming and using method thereof | |
| CN105772566A (en) | Integral tee joint copper pipe forming mould | |
| CN205571138U (en) | Tee bend copper pipe integrated into one piece mould | |
| CN202028627U (en) | Three-way pipe extrusion molding device | |
| CN106567976A (en) | Double-compression three-way copper tube and forming method thereof | |
| CN102240690A (en) | Three-way pipe extrusion molding device and extrusion molding technology thereof | |
| CN106513487B (en) | A kind of low pressure preformation method based on interior high-pressure molding | |
| CN203649090U (en) | Engine air inlet pipe compression tool | |
| CN103521586B (en) | Stainless steel tube shaped device | |
| CN203697409U (en) | External ejection mechanism of plastic pipe fitting mould product | |
| CN102896731A (en) | Socket pipe processing device and manufacturing method for socket pipe | |
| CN114160666B (en) | Forming device for thin-wall stainless steel clamping pipe fitting | |
| CN205578994U (en) | Tee bend copper pipe is pressed to double cassette | |
| CN102740991A (en) | Hydraulic forming method and hydraulic forming device | |
| CN208628149U (en) | A kind of seamless large-caliber thin-walled three-way forming device | |
| CN103182414A (en) | Pier head machine | |
| CN103537505B (en) | A kind of axial workpiece mold for extruding and forming and extrusion forming method | |
| CN106426742A (en) | Winding type steel strip pipe bell and spigot device | |
| CN201427386Y (en) | Cylinder-model integrated type prefill valve | |
| CN104329528A (en) | Plastic pipeline connector and production device for plastic pipeline connector | |
| CN210999799U (en) | Injection molding runner positioner | |
| CN205571155U (en) | Car seat torque tube cold extruding die | |
| CN210082380U (en) | Blow molding dust cover mold |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 528000 Foshan, Nanhai District, Guangdong Xia Xia Industrial Park Applicant after: Guangdong Haonei High Technology Co. Ltd. Address before: 528000 Foshan, Nanhai District, Guangdong Xia Xia Industrial Park Applicant before: GUANGDONG SIHAO HYDRAULIC MACHINERY CO., LTD. |
|
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |