CN105252760A - PE three-way pipe processing device - Google Patents
PE three-way pipe processing device Download PDFInfo
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- CN105252760A CN105252760A CN201510574624.9A CN201510574624A CN105252760A CN 105252760 A CN105252760 A CN 105252760A CN 201510574624 A CN201510574624 A CN 201510574624A CN 105252760 A CN105252760 A CN 105252760A
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- positioning table
- supervisor
- heating plate
- arm
- perforating knife
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Abstract
The invention discloses a PE three-way pipe processing device, which comprises a rack, a main pipe positioning table capable of moving in the vertical direction above the rack, a punching knife translation table capable of moving in the horizontal direction and a branch pipe positioning table horizontally moving above the punching knife translation table, wherein a main pipe positioning snap ring for horizontally positioning a main pipe is arranged on the main pipe positioning table, a branch pipe positioning snap ring for vertically positioning the axial direction of the branch pipe on the horizontal plane and the axial direction of the main pipe is arranged on the branch pipe positioning table, a punching knife and a motor for driving the punching knife to rotate are arranged on the punching knife translation table, the moving directions of the branch pipe positioning table and the punching knife translation table are parallel and vertical to the axial direction of the main pipe, a heating plate is arranged between the main pipe positioning table and the branch pipe positioning table, guide rails are arranged on two sides of the heating plate, and a heating plate lifting cylinder for driving, the guide rail is provided with a floating mechanism which can lead the heating plate to slide along the moving direction parallel to the branch pipe positioning table. The invention aims to provide a PE three-way pipe processing device which can complete multiple steps and simplify the production flow so as to improve the production efficiency.
Description
Technical field
The invention belongs to PE pipe joint FIELD OF THE INVENTIONThe, particularly relate to a kind of PE three-way pipe processing unit (plant).
Background technology
Polyethylene, being called for short PE, is common thermoplastic.Because PE tubing has nontoxic, tasteless, odorless, good cold-resistant, heat resistance and chemical stability, higher rigidity and toughness, and good mechanical property, the plurality of advantages such as easy for installation, be widely used in building give, draining, the fields such as buried drain pipe, appendix and telecommunications engineering.In pipeline manufacture process, in the manufacture process of particularly pipe joint, utilize thermoplastic characteristic hot-melt adhesive paste, realize pipe-line system connecting integration.The heat-melting butt-joint especially three-way pipe of pipe joint, it is formed with arm two parts by being responsible for, and arm needs to be connected with supervisor's sidewall, proposes higher requirement for fusing operation.In the docking operation of arm and supervisor, need to punch to supervisor relevant position, carry out melting and docking to solder side, technique is comparatively complicated, and manual operation is comparatively difficult, and production efficiency is comparatively low.
Summary of the invention
The present invention is to overcome above-mentioned deficiency of the prior art, provides and a kind ofly completes multiple step, simplifies production procedure thus a kind of PE three-way pipe processing unit (plant) of enhancing productivity.
To achieve these goals, the present invention is by the following technical solutions:
A kind of PE three-way pipe processing unit (plant), comprise stand, can supervisor's positioning table of vertical direction movement above stand, the perforating knife translation stage that can move in the horizontal direction and the arm positioning table in the movement of perforating knife translation stage upper horizontal, described supervisor's positioning table is provided with locates the supervisor of supervisor's horizontal location for snap ring, described arm positioning table is provided with axially locates arm for snap ring at horizontal plane and charge shaft to the arm of perpendicular positioning, the motor that described perforating knife translation stage is provided with perforating knife and drives perforating knife to rotate, described arm positioning table parallel with the moving direction of perforating knife translation stage and with supervisor axial vertical, heating plate is provided with between described supervisor's positioning table and arm positioning table, described heating plate both sides are provided with guide rail, described stand is provided with the heating plate lift cylinders driving heating plate along lifting rail, described guide rail is provided with and heating plate can be made along being parallel to the relocation mechanism that arm positioning table moving direction carries out sliding.After supervisor positions by such supervisor's positioning table, supervisor's positioning table is positioned at below, corresponding with perforating knife translation stage position.Perforating knife translation stage moves to supervisor's positioning table, and driven by motor perforating knife high-speed rotation carries out to supervisor's sidewall the joint face that punch operation forms supervisor.After having punched, supervisor's positioning table rises, thus it is corresponding with the arm positioning table position above perforating knife translation stage, now heating plate decline and arm positioning table to supervisor positioning table move, heating plate is heated the joint face of supervisor and arm simultaneously, after heating and melting, heating plate rises, and arm positioning table is further near supervisor's positioning table, and the joint face of supervisor and arm docks fusion.This device completes supervisor's arm location, supervisor punches, joint face heats and multiple processing steps of docking fusion, significantly reduces hand labor intensity, improves production efficiency.
As preferably, described stand is provided with locating support in the side of supervisor's positioning table, is provided with the slip cylinder that punches, is provided with arm slip cylinder between described arm positioning table and locating support between described perforating knife translation stage and locating support.By locating support, arm positioning table and perforating knife translation stage in the vertical direction are arranged in parallel, and consistent with both arm slip cylinder guarantees direction of motion by punching slip cylinder, improve arm and the coaxial precision of supervisor's punch position.
As preferably, described stand is provided with two vertical rails, and be provided with the charge cylinder driving supervisor's positioning table along vertical rail movement below stand, described guide rail is arranged on the inner side of vertical rail, and described heating plate is arranged between two vertical rails.Making heating plate like this between two vertical rails, is fully used in space, simultaneously heating plate and supervisor and arm relative position comparatively accurate, raising homogeneous heating degree.
As preferably, described relocation mechanism comprises outer frame body and fixed head, outer frame body is connected with slide, described heating plate is fixed in the middle part of fixed head, the chute of level is provided with in described outer frame body, the edge of fixed head is provided with the projection coordinated with slide, is respectively equipped with back-moving spring between described fixed head both sides and outer frame body.Such heating plate not only can move up and down, and heating plate left and right directions has certain activity space, and heating plate is stronger for the adaptive ability of supervisor and arm joint face.Due to action of reset spring after this external heating terminates, heating plate can with supervisor quick separating, make the heat time more accurate.
As preferably, described perforating knife comprises cutter hub and knife bar, and described cutter hub, in the tubular structure being provided with opening, is provided with the drill bit that relative cutter hub is fixing in described opening, drill bit and cutter hub coaxially arranged.Drill bit is set, make cutter hub before contact supervisor, drill bit first spiles to supervisor thus passes supervisor's sidewall, play the effect of auxiliary positioning, make the elastic deformability to aperture of cutter hub puncture site when punching improve simultaneously, make drill process more laborsaving, the waste material that punching produces also more easily departs from supervisor.
As preferably, described drill bit is provided with the gag lever post that can rotate to bit exterior and the bar groove holding gag lever post, extension spring is provided with between described gag lever post and bar groove, being provided with in described opening can the push pedal that moves axially of drill bit relatively, push pedal, between bar groove and open bottom, is provided with stage clip between push pedal and cutter hub.Like this, drill bit is in the process spiled, and gag lever post is subject to little bore hole pressure and remains in bar groove, after gag lever post passes completely through supervisor's wall, outwards launches due to centrifugal action, carries out spacing from the inner side of supervisor's wall to puncture site.Along with cutter hub deepens continuously, the part of supervisor's wall in cutter hub constantly extrudes push pedal and is compressed by stage clip, until cutter hub runs through supervisor's wall, cutter hub stops operating after shifting out, and gag lever post is got back in bar groove by extension spring effect, and the waste material in cutter hub is released cutter hub by push pedal, such waste material can not be piled up in cutter hub, also can not drop in supervisor, thus remove cleaning operation from, convenient punching next time.
As preferably, described locating support is provided with exhaust tube and switch of bleeding near one end of supervisor's positioning table, and exhaust tube is arranged on the both sides of perforating knife, and described perforating knife translation stage moves to and when supervisor's positioning table, triggers switch of bleeding exhaust tube is bled.Like this when perforating knife translation stage is near supervisor's positioning table, exhaust tube can be made to carry out air suction process, and the waste material chip produced in drill process can be taken away by exhaust tube, improves waste recovery rate, reduces dust pollution simultaneously.
As preferably, be provided with gap between the outer rim of described push pedal and cutter hub inwall, the outer rim of push pedal is provided with the hairbrush with cutter hub contact internal walls.The side edge of cutter hub can be cleared up by such push pedal in sliding process, reduces the impact of waste material for cutter hub punch-cuts process.
The invention has the beneficial effects as follows: (1) is convenient to operation, enhances productivity, reduce labour intensity; (2) supervisor to locate with arm and to be connected precision high, ensure that heat-melting butt-joint intensity; (3) waste material clearing and retrieving efficiency is higher, improves materials'use rate.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is the top view of the present invention when heating;
Fig. 3 is the top view of the present invention when carrying out punch operation.
In figure: supervisor 1, supervisor location snap ring 2, supervisor's positioning table 3, vertical rail 4, guide rail 4a, heating plate 5, outer frame body 6, chute 6a, heating plate lift cylinders 7, fixed head 8, protruding 8a, back-moving spring 8b, thermal insulation layer 8c, arm 9, arm location snap ring 10, arm positioning table 11, arm slip cylinder 12, piston rod 12a, perforating knife translation stage 13, motor 14, locating support 15, bleed switch 15a, punching slip cylinder 16, stand 17, perforating knife 18, cutter hub 18a, knife bar 18b, bar groove 18c, drill bit 18d, stage clip 1801, push pedal 1802, hairbrush 1803, extension spring 1804, gag lever post 1805, charge cylinder 19, exhaust tube 20.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
In embodiment as shown in Figure 1, a kind of PE three-way pipe processing unit (plant), comprises stand 17, supervisor positioning table 3, arm positioning table 11 and perforating knife translation stage 13.Stand is provided with two vertical rails 4, and supervisor's positioning table can slide along vertical rail, is provided with charge cylinder 19 below stand simultaneously, and supervisor's positioning table can be driven to move along vertical rail.Supervisor's positioning table is provided with supervisor location snap ring 2, and supervisor 1 is carried out horizontal location.Stand is provided with locating support 15, and locating support is positioned at the side that supervisor's positioning table coordinates with vertical rail, thus makes vertical rail between locating support and supervisor's positioning table.Arm positioning table is provided with axially locates arm 9 for snap ring 10 at horizontal plane and charge shaft to the arm of perpendicular positioning, the motor 14 that perforating knife translation stage is provided with perforating knife 18 and drives perforating knife to rotate.Supervisor's location snap ring and arm location snap ring all adopt the snap-in structure comprising snap ring and lower snap ring, wherein go up snap ring and can rotate folding relative to lower snap ring, in upper snap ring and lower snap ring, the adjustment packing ring matched with pipe diameter can be set, thus adapt with body to be fixed.
Arm positioning table and perforating knife translation stage are arranged on locating support, and arm positioning table is positioned at above perforating knife translation stage, is provided with the slip cylinder 16 that punches between perforating knife translation stage and locating support, are provided with arm slip cylinder 12 between arm positioning table and locating support.In the present embodiment, punching slip cylinder and arm slip cylinder all adopt twin shaft cylinder or twin shaft oil cylinder, all there is piston rod 12a its cylinder body both sides, end and the locating support of piston rod are fixed, cylinder body can drive arm positioning table or perforating knife translation stage to carry out horizontal direction slip, arm positioning table is parallel with the moving direction of perforating knife translation stage, and all perpendicular to charge shaft to.
As shown in Figure 2, heating plate 5 is provided with between supervisor's positioning table and arm positioning table, guide rail 4a is arranged on the inner side of vertical rail, heating plate is arranged between two vertical rails, arm on arm positioning table after the positioning, near supervisor's positioning table under arm slip cylinder promotes, arm contacts with heating plate.In order to improve uniformity coefficient and the efficiency of heating surface of heating, heating plate is the cambered surface protruded towards arm positioning table side, and be the cambered surface of depression towards supervisor's positioning table, such heating plate can fit with the joint face of supervisor and arm.
Relocation mechanism comprises outer frame body 6 and fixed head 8, outer frame body is connected with slide, and heating plate is fixed in the middle part of fixed head, is provided with the chute 6a of level in outer frame body, the edge of fixed head is provided with the protruding 8a coordinated with slide, is respectively equipped with back-moving spring 8b between fixed head both sides and outer frame body.When arm promote heating plate near supervisor time, fixed head along slide, compression reseting spring.Fixed head adopts heat-barrier material to make, and fixed head is provided with thermal insulation layer 8c simultaneously, thus the heat effects avoiding heating plate to produce is to guide rail.
Locating support is provided with exhaust tube 20 and the switch 15a that bleeds near one end of supervisor's positioning table, and exhaust tube is arranged on the both sides of perforating knife, triggers switch of bleeding exhaust tube is bled when perforating knife translation stage moves to close supervisor's positioning table.The air-extraction function of exhaust tube realizes by connecting the power source of bleeding such as air blast or air pump, before exhaust tube is connected with power source of bleeding, can also arrange and reclaim the casing of waste material, in casing, the filtrations such as filter screen are set, waste material can be assembled in casing again.
As shown in Figure 3, perforating knife comprises cutter hub 18a and knife bar 18b, and cutter hub is tubular structure, and cutter hub is provided with opening towards the one side of supervisor, and the side of cutter hub is provided with side edge and chip area.Be provided with the drill bit 18d that relative cutter hub is fixing in opening, drill bit and cutter hub coaxially arranged.Drill bit is provided with the gag lever post 1805 that can rotate to bit exterior and holds the bar groove 18c of gag lever post, and the position of gag lever post and bar groove is near the head of drill bit.Be provided with extension spring 1804 between gag lever post and bar groove, perforating knife is not when rotating, and gag lever post is subject to extension spring effect and is positioned at bar groove.Being provided with in opening can the push pedal 1802 that moves axially of drill bit relatively, and push pedal, between bar groove and open bottom, is provided with stage clip 1801 between push pedal and cutter hub.In addition, be provided with gap between the outer rim of push pedal and cutter hub inwall, the outer rim of push pedal is provided with the hairbrush 1803 with cutter hub contact internal walls, and push pedal is when relative drill bit slides, in push pedal outer rim, hairbrush can be cleared up the side edge of cutter hub and chip area, chip is discharged cutter hub inside.
In actual production process, by supervisor location snap ring, supervisor is positioned on supervisor's positioning table, be positioned on arm positioning table by arm location snap ring by arm, supervisor's positioning table is moved to lower dead center by charge cylinder afterwards, is now responsible for positioning table corresponding with perforating knife translation stage position.Perforating knife translation stage moves to supervisor's positioning table under the effect of punching slip cylinder, and when the perforating knife on perforating knife translation stage is near supervisor, the translational speed of perforating knife translation stage reduces, simultaneously driven by motor perforating knife high-speed rotation.First drill bit on perforating knife contacts supervisor's wall and gets out aperture.Drill bit is in the process spiled, and because the link of gag lever post is near drill bit, gag lever post can be subject to little bore hole pressure and remain in bar groove therefore can carrying out through aperture.After gag lever post passes completely through supervisor's wall, outwards launch owing to being subject to centrifugal action, carry out spacing from the inner side of supervisor's wall to puncture site.Along with cutter hub deepens continuously, the part of supervisor's wall in cutter hub constantly extrudes push pedal and is compressed by stage clip, until cutter hub runs through supervisor's wall, be now responsible for the part of wall in cutter hub and push pedal active force is disappeared, but because cutter hub is still in high-speed rotation, the active force of gag lever post does not disappear, until cutter hub stops operating after shifting out, gag lever post is got back in bar groove by extension spring effect, and the waste material in cutter hub is released cutter hub by push pedal, now cutter hub leaves supervisor, and therefore waste material can not drop on main pipe.In addition, when perforating knife carries out punch operation, also can trigger the air-extraction function of exhaust tube, the dust chip produced can be siphoned away by exhaust tube, avoid the impact that dust and chip cause in drill process.
After perforating knife completes and carries out punch operation to supervisor's sidewall, charge cylinder promotes supervisor's positioning table and rises to top dead centre, and supervisor's positioning table is corresponding with the arm positioning table position above perforating knife translation stage.Now heating plate lift cylinders 7 promotes heating plate decline, arm slip cylinder promotes arm positioning table and moves to supervisor's positioning table, the joint face of arm contacts with heating plate, promote heating plate mobile to supervisor simultaneously, heating plate another side contacts with the joint face of supervisor, and heating plate heats the joint face of supervisor and arm simultaneously.After heating and melting, the counter motion of arm positioning table, heating plate is separated with supervisor, arm, and rises under heating plate lift cylinders drives.After heating plate has risen, arm positioning table is again near supervisor's positioning table, and the joint face docking of supervisor and arm, both take off after fusing cooling, can carry out fusing operation next time.
Claims (8)
1. a PE three-way pipe processing unit (plant), it is characterized in that, comprise stand (17), can at supervisor's positioning table (3) of stand (17) top vertical direction movement, the perforating knife translation stage (13) that can move in the horizontal direction and the arm positioning table (11) in perforating knife translation stage (13) upper horizontal movement, described supervisor's positioning table (3) is provided with locates the supervisor of supervisor's horizontal location for snap ring (2), described arm positioning table (11) is provided with axially locates arm for snap ring (10) at horizontal plane and charge shaft to the arm of perpendicular positioning, the motor (14) that described perforating knife translation stage (13) is provided with perforating knife (18) and drives perforating knife (18) to rotate, described arm positioning table (11) parallel with the moving direction of perforating knife translation stage (13) and with supervisor axial vertical, heating plate (5) is provided with between described supervisor's positioning table (3) and arm positioning table (11), described heating plate (5) both sides are provided with guide rail (4a), described stand (17) is provided with the heating plate lift cylinders (7) driving heating plate (5) to be elevated along guide rail (4a), described guide rail (4a) is provided with and heating plate (5) can be made along being parallel to the relocation mechanism that arm positioning table (11) moving direction carries out sliding.
2. a kind of PE three-way pipe processing unit (plant) according to claim 1, it is characterized in that, described stand (17) is provided with locating support (15) in the side of supervisor's positioning table (3), be provided with the slip cylinder (16) that punches between described perforating knife translation stage (13) and locating support (15), between described arm positioning table (11) and locating support (15), be provided with arm slip cylinder (12).
3. a kind of PE three-way pipe processing unit (plant) according to claim 1, it is characterized in that, described stand (17) is provided with two vertical rails (4), stand (17) below is provided with the charge cylinder (19) driving supervisor's positioning table (3) along vertical rail (4) movement, described guide rail (4a) is arranged on the inner side of vertical rail (4), and described heating plate (5) is arranged between two vertical rails (4).
4. a kind of PE three-way pipe processing unit (plant) according to claim 1 or 2 or 3, it is characterized in that, described relocation mechanism comprises outer frame body (6) and fixed head (8), outer frame body (6) and guide rail (4a) are slidably connected, described heating plate (5) is fixed on fixed head (8) middle part, the chute (6a) of level is provided with in described outer frame body (6), the edge of fixed head (8) is provided with the projection (8a) be slidably matched with chute (6a), is respectively equipped with back-moving spring (8b) between described fixed head (8) both sides and outer frame body (6).
5. a kind of PE three-way pipe processing unit (plant) according to claim 1 or 2 or 3, it is characterized in that, described perforating knife (18) comprises cutter hub (18a) and knife bar (18b), described cutter hub (18a) is in the tubular structure being provided with opening, be provided with the drill bit (18d) that relative cutter hub (18a) is fixing in described opening, drill bit (18d) is coaxially arranged with cutter hub (18a).
6. a kind of PE three-way pipe processing unit (plant) according to claim 1 or 2 or 3, it is characterized in that, described drill bit (18d) is provided with can to the gag lever post (1805) of drill bit (18d) external rotating and the bar groove (18c) holding gag lever post (1805), extension spring (1804) is provided with between described gag lever post (1805) and bar groove (18c), being provided with in described opening can the push pedal (1802) that moves axially of drill bit (18d) relatively, push pedal (1802) is positioned between bar groove (18c) and open bottom, stage clip (1801) is provided with between push pedal (1802) and cutter hub.
7. a kind of PE three-way pipe processing unit (plant) according to claim 2, it is characterized in that, described locating support (15) is provided with exhaust tube (20) and switch of bleeding (15a) near one end of supervisor's positioning table (3), exhaust tube (20) is arranged on the both sides of perforating knife (18), triggers switch (15a) of bleeding exhaust tube (20) is bled when described perforating knife translation stage (13) moves to close supervisor positioning table (3).
8. a kind of PE three-way pipe processing unit (plant) according to claim 5, it is characterized in that, be provided with gap between the outer rim of described push pedal (1802) and cutter hub (18a) inwall, the outer rim of push pedal (1802) is provided with the hairbrush (1803) with cutter hub (18a) contact internal walls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510574624.9A CN105252760B (en) | 2015-09-11 | 2015-09-11 | PE three-way pipe processing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510574624.9A CN105252760B (en) | 2015-09-11 | 2015-09-11 | PE three-way pipe processing device |
Publications (2)
| Publication Number | Publication Date |
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| CN105252760A true CN105252760A (en) | 2016-01-20 |
| CN105252760B CN105252760B (en) | 2017-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510574624.9A Active CN105252760B (en) | 2015-09-11 | 2015-09-11 | PE three-way pipe processing device |
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| Country | Link |
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| CN (1) | CN105252760B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106079415A (en) * | 2016-07-29 | 2016-11-09 | 梁启明 | A kind of latex tubing positioner |
| CN107486703A (en) * | 2017-08-11 | 2017-12-19 | 山东泰开高压开关有限公司 | A kind of GIS device three-port structure assembling docking facilities and docking calculation |
| CN111595218A (en) * | 2020-05-29 | 2020-08-28 | 安徽江淮汽车集团股份有限公司 | Special detection device for pipe beam type air filter support |
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| GB2359347A (en) * | 1999-12-22 | 2001-08-22 | Crane Ltd | Pipe connection unit with valve |
| CN1583307A (en) * | 2004-05-31 | 2005-02-23 | 陈祥禧 | Method and apparatus for machining three way tubular workpiece with variable diameters |
| CN102317053A (en) * | 2009-02-19 | 2012-01-11 | 株式会社天实库 | The plastic tube hot melt is met sb. at the airport |
| CN204367398U (en) * | 2014-10-15 | 2015-06-03 | 成都三环金属制品有限公司 | Many specifications PE pipe fitting is welded device |
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2015
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2277880Y (en) * | 1996-12-25 | 1998-04-08 | 高秋源 | Plastic pipe saddle shape thermal welding machine |
| GB2359347A (en) * | 1999-12-22 | 2001-08-22 | Crane Ltd | Pipe connection unit with valve |
| CN1583307A (en) * | 2004-05-31 | 2005-02-23 | 陈祥禧 | Method and apparatus for machining three way tubular workpiece with variable diameters |
| CN102317053A (en) * | 2009-02-19 | 2012-01-11 | 株式会社天实库 | The plastic tube hot melt is met sb. at the airport |
| CN204367398U (en) * | 2014-10-15 | 2015-06-03 | 成都三环金属制品有限公司 | Many specifications PE pipe fitting is welded device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106079415A (en) * | 2016-07-29 | 2016-11-09 | 梁启明 | A kind of latex tubing positioner |
| CN107486703A (en) * | 2017-08-11 | 2017-12-19 | 山东泰开高压开关有限公司 | A kind of GIS device three-port structure assembling docking facilities and docking calculation |
| CN107486703B (en) * | 2017-08-11 | 2024-01-19 | 山东泰开高压开关有限公司 | Butt joint method for assembling three-way structure of GIS equipment |
| CN111595218A (en) * | 2020-05-29 | 2020-08-28 | 安徽江淮汽车集团股份有限公司 | Special detection device for pipe beam type air filter support |
| CN111595218B (en) * | 2020-05-29 | 2021-09-28 | 安徽江淮汽车集团股份有限公司 | Special detection device for pipe beam type air filter support |
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| Publication number | Publication date |
|---|---|
| CN105252760B (en) | 2017-12-26 |
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Inventor after: Sun Zhaoer Inventor after: Zhao Ligang Inventor after: Wang Guang Inventor after: Wang Xiaogang Inventor after: Chen Jianqiang Inventor before: Sun Zhaoer |
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Address after: 315414 No. 71, West Road, Hemudu Town, Yuyao City, Ningbo City, Zhejiang Province Patentee after: Ningbo Yuhua Industrial Co.,Ltd. Address before: 315414 No. 71, West Road, Hemudu Town, Yuyao City, Ningbo City, Zhejiang Province Patentee before: NINGBO YUHUA ELECTRIC APPLIANCE Co.,Ltd. |