CN101695724B - Semi-automatic hollow guide rail reshaping device and reshaping method thereof - Google Patents
Semi-automatic hollow guide rail reshaping device and reshaping method thereof Download PDFInfo
- Publication number
- CN101695724B CN101695724B CN200910186338XA CN200910186338A CN101695724B CN 101695724 B CN101695724 B CN 101695724B CN 200910186338X A CN200910186338X A CN 200910186338XA CN 200910186338 A CN200910186338 A CN 200910186338A CN 101695724 B CN101695724 B CN 101695724B
- Authority
- CN
- China
- Prior art keywords
- guide rail
- hollow guide
- movable holddown
- semi
- briquetting
- 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.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000007493 shaping process Methods 0.000 claims description 40
- 238000003825 pressing Methods 0.000 claims description 16
- 230000006698 induction Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 3
- 238000005520 cutting process Methods 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 4
- 238000004080 punching Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000013000 roll bending Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
Images
Landscapes
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The invention discloses a semi-automatic hollow guide rail reshaping device which comprises a stand (1). The semi-automatic hollow guide rail reshaping device is characterized in that a fixed press cake (2) and a movable press cake (3) are oppositely arranged on the stand; a driving device (4) is arranged at the outside of the movable press cake (3) and drives the movable press cake (3) to move so as to reshape a hollow guide rail together with the fixed press cake (2), the position of which is fixed. The device has greatly improved reshaping efficiency and controllable reshaping precision, so that the quality level of the hollow guide rail is improved remarkably; in addition, the device realizes semi automation process and reduces the requirement on the technical level of workers.
Description
Technical field
The invention belongs to the machining and shaping technical field of cage guide, be specifically related to a kind of semi-automatic hollow guide rail reshaping device and shaping methods thereof.
Background technology
Fast development through more than 20 years, China's elevator is already through developing into 21.6 ten thousand annual production in 2007 from more than 2000 the annual production eighties, annual export volume surpasses 3.1 ten thousand, and the flourishing elevator market demand causes the demand of the various parts of elevator also to greatly increase.
Cage guide is mounted in the row of two in the elevator hoistways or between the floor or multiple row is vertical or the rigid track of inclination, guarantee that car and counterweight move both vertically up and down along it, guarantee that escalator and moving sidewalk step tilt or horizontal movement along its work, for lift car, counterweight or step provide guiding; Guide rail is not only controlled the running orbit of lift car and counterweight, and is car when hypervelocity firm support during urgent stop that meets accident.Cage guide relates to the vitals of elevator running quality and elevator safety.
Cage guide is divided into three major types: solid guide rail, counterweight hollow guide rail and staircase guide rail.Solid guide rail is the machined guide rail, is to be formed through machining spigot surface and connecting portion by guide rail section, and its purposes is to provide guiding in the elevator operation for car in service, and the solid guide rail of small dimension also is used for the counterweight guiding.The counterweight hollow guide rail is the rolling guide rail of clod wash, be by the roll bending material through multiple tracks pass mould cold roll forming, be mainly used in that elevator is in service to provide guiding for counterweight.The staircase guide rail is the rolling guide rail of clod wash, is mainly used in the supporting and the guiding of the step of escalator and moving sidewalk.
Cage guide provides guiding for car and counterweight when elevator moves, the supporting role when also playing the safety tongs braking is the vitals in the elevator device.The connection precision of hollow guide rail and staircase guide rail is that end size and the form and position tolerance by guide rail guarantees that the connection precision of guide rail directly influences elevator traveling comfort and comfort level.
The production technology of hollow guide rail comprises that sheet material cuts across, rolling, saw length, punching deburring, zinc-plated, foaming, strongly pack after turning round aligning.Wherein Guan Jian operation is rolling (being clod wash), but before rolling a requisite preparation is arranged---the dress mould.The special-purpose roll die of hollow guide rail is installed, can not be surpassed 0.2mm from the first road mould to the vertical linearity total deviation of last one mould, the transverse horizontal deviation of per pass mould can not surpass 0.05mm.After mould installed, roll bending entered the roll die group, through the multiple tracks mould progressively cold bending to the required form size.The guide rail that comes out from the roll extrusion unit enters the tracking cutting machine of band scale and saws length, and general rail length is 5000 ± 3mm.Next step is the connecting hole at processing guide rail two ends on the punch press that the hollow guide rail punching die is housed.Burr when at first removing cutting during punching is measured two ends guiding size with gauge then, and corrects the cutting distortion.External coordination is zinc-plated after the punching.Pack or polyurethane foaming back packing according to customer requirement after zinc-plated, turn round aligning, reach the drawing requirement but will rectify before the packing.
Because hollow guide rail is a cold roll forming, hollow guide rail is after cutting into single-piece with sawing machine, because the effect of internal stress and elastic recovery, the hollow guide rail two ends flick and produce distortion, make the spigot surface width difference of hollow guide rail excessive.In the prior art usually by the workman by hand shaping repair a die and mode transfer align deviation, its shaping efficient is low, and needs the workman to possess higher technical merit, causes the end product quality level uneven.The present invention comes therefrom.
Summary of the invention
The object of the invention is to provide a kind of semi-automatic hollow guide rail reshaping device, has solved prior art hollow core guide rail and has carried out the problems such as shaping technique level that manual shaping efficient is low, shaping effect is unstable, needs are higher.
In order to solve these problems of the prior art, technical scheme provided by the invention is:
A kind of semi-automatic hollow guide rail reshaping device, comprise frame, it is characterized in that being provided with in opposite directions on the described frame fixedly briquetting and movable holddown, described movable holddown arranged outside drive unit, described drive unit driving movable holddown moves with the fixedly briquetting of fixed-site and cooperates the shaping hollow guide rail.
Preferably, described fixedly briquetting and frame are fixed by set bolt, and the one side contacts with hollow guide rail, the adjusting device that the opposite side setting can be regulated according to the hollow guide rail width.
Preferably, described adjusting device comprises the adjusting screw(rod) that is connected with frame, described adjusting screw(rod) one end and fixing briquetting close-fitting; On the described fixedly briquetting strip through-hole is set, described set bolt is connected and fixed briquetting and frame by strip through-hole.
Preferably, described frame upper end is provided with the track that compresses of horizontally-guided, and the described track that compresses is perpendicular to the hollow guide rail spigot surface, and described movable holddown with compress track and cooperate the slip of leading; Described drive unit is a compressed oil cylinder, and the push rod of described compressed oil cylinder is connected with movable holddown; The push rod of described compressed oil cylinder promotes movable holddown and slides and cooperate pressing with fixing briquetting along compressing track.
Preferably, described frame upper end is provided with low level workbench and high-order workbench, high-order workbench and low level workbench and frame are fixed, described fixedly briquetting is fixedly installed on the high-order workbench, the described track that compresses is arranged on the low level workbench, between described fixedly briquetting and movable holddown the end locating piece is set, fixedly briquetting and end locating piece form the hollow guide rail rest area on the described high-order workbench.
Preferably, described device also comprises control system; Described control system comprises the inductor that compresses that is arranged on the locating piece of end induction hollow guide rail end, when hollow guide rail was placed, end in contact compressed inductor and triggers control system control movable holddown and slide and cooperate the pressing shaping with fixing briquetting before the hollow guide rail.
Preferably, the described high-order workbench outside also is provided with unclamps inductor, is provided with on the described movable holddown and unclamps the contact that unclamps that inductor is used; When the movable holddown pressing puts in place, describedly unclamp contact and unclamp inductor and contact and trigger control system control movable holddown and cooperate slip to move apart fixedly briquetting with hollow guide rail.
Another object of the present invention is to provide the shaping methods of the hollow guide rail of a kind of end distortion, it is characterized in that said method comprising the steps of:
(1) the hollow guide rail of shaping is not placed in the semi-automatic hollow guide rail reshaping device hollow guide rail rest area; Make the inductor that compresses on the locating piece of contact end, hollow guide rail end;
(2) the semi-automatic hollow guide rail reshaping device triggering signal rear drive equipment that compresses of accepting to compress inductor drives movable holddown pressing shaping;
(3) finish when pressing, unclamp the contact contact and unclamp inductor and trigger drive unit and drive movable holddown and move apart.
Preferably, described method also is included in step (1) and carries out before carrying out pressure testing operation and using adjusting device to regulate the fixedly step of briquetting position according to the hollow guide rail width.
After the hollow guide rail material being cut into the single-piece hollow guide rail with sawing machine, put on the frame platform of semi-automatic hollow guide rail reshaping device and run into and compress inductor by the empty rail that the workman will shaping, can carry out the shaping rectification work.Because the hollow guide rail single-piece after the sawing machine cutting mainly is the distortion of hollow guide rail end, can carry out shaping very easily by semi-automatic hollow guide rail reshaping device.
With respect to scheme of the prior art, advantage of the present invention is:
1. the hollow guide rail single-piece deformation characteristics after the present invention cuts according to sawing machine has designed semi-automatic hollow guide rail reshaping device, hollow guide rail that will shaping by the workman is placed on the hollow guide rail rest area of semi-automatic hollow guide rail reshaping device, run into the inductor that compresses of control system when hollow guide rail, control system drives movable holddown and moves, cooperate the pressing shaping with the fixed guide in the hollow guide rail outside, greatly facilitate shaping work like this; When using similar manipulator to carry out operation, can realize the automation process of operation; When the hollow guide rail width was consistent, the quality of hollow guide rail is stable uniform comparatively also.
2, the movable holddown that has designed fixing briquetting in the technical solution of the present invention and be used with it, movable holddown arranged outside drive unit, promote movable holddown by drive unit and move,, make the precision of carrying out shaping to control and to adjust owing to adopt the technological means of these instead of manual.In the optimal technical scheme,, control system realizes the touch shaping, more convenient shaping work by being set.
3, fixedly briquetting is fixing by set bolt in the technical solution of the present invention, fixedly the outside of briquetting also is provided with adjusting device, can regulate the width size of hollow guide rail rest area according to the width of hollow guide rail by adjusting device, the deformation size of shaping is adjusted in the trial run that also can carry out hollow guide rail, the shaping of applicable certain width hollow guide rail has certain flexibility.
Description of drawings
Below in conjunction with drawings and Examples the present invention is further described:
Fig. 1 is the upward view of embodiment of the invention semi-automatic hollow guide rail reshaping device;
Fig. 2 is the front view of embodiment of the invention semi-automatic hollow guide rail reshaping device;
Fig. 3 is the last hollow guide rail product front view that forms after the embodiment of the invention shaping;
Fig. 4 is the last hollow guide rail product right view that forms after the embodiment of the invention shaping;
Fig. 5 is the last hollow guide rail product upward view that forms after the embodiment of the invention shaping.
Wherein: 1 is frame; 2 are fixing briquetting; 3 is movable holddown; 4 is drive unit; 5 is adjusting device; 6 for compressing track; 8 for treating the hollow guide rail of shaping;
11 is the low level workbench; 12 is high-order workbench; 21 is set bolt; 22 is strip through-hole; 31 for unclamping contact; 71 for compressing inductor; 72 for unclamping inductor; 81 hollow guide rail finished products.
The specific embodiment
Below in conjunction with specific embodiment such scheme is described further.Should be understood that these embodiment are used to the present invention is described and are not limited to limit the scope of the invention.The implementation condition that adopts among the embodiment can be done further adjustment according to the condition of concrete producer, and not marked implementation condition is generally the condition in the normal experiment.
Embodiment: shown in Fig. 1～3, this semi-automatic hollow guide rail reshaping device, comprise frame 1 and the control system of controlling this device, fixedly briquetting 2 and movable holddown 3 are set on the described frame in opposite directions, described fixedly briquetting and frame are fixing by set bolt 21, the one side contacts with hollow guide rail, the adjusting device that the opposite side setting can be regulated according to the hollow guide rail width.Described adjusting device comprises the adjusting screw(rod) 5 that is connected with frame, described adjusting screw(rod) one end and fixing briquetting close-fitting; On the described fixedly briquetting strip through-hole 22 is set, described set bolt 21 is connected and fixed briquetting and frame by strip through-hole.
The frame upper end is provided with low level workbench 11 and high-order workbench 12, high-order workbench 12 and low level workbench 11 are fixed with frame, described fixedly briquetting is fixedly installed on the high-order workbench 12, the described track 6 that compresses is arranged on the low level workbench, 3 of described fixedly briquetting 2 and movable holddowns are provided with the end locating piece, and fixedly briquetting 2 and end locating piece form the hollow guide rail rest area on the described high-order workbench.
Control system comprise be arranged on the locating piece of end induction hollow guide rail end compress inductor 71, when hollow guide rail was placed, end in contact compressed inductor 71 and triggers control system control movable holddown 3 and slide and cooperate the pressing shaping with fixing briquetting before the hollow guide rail.Described high-order workbench arranged outside is unclamped inductor 72, be provided with on the described movable holddown with unclamp that inductor 72 is used unclamp contact 31; When the movable holddown pressing puts in place, describedly unclamp contact 31 and unclamp inductor 72 and contact and trigger control system control movable holddown and cooperate slip to move apart fixedly briquetting with hollow guide rail.
When using this semi-automatic hollow guide rail reshaping device to need the hollow guide rail reshaping of shaping, can carry out according to following steps:
(1) the hollow guide rail of shaping is not placed in the semi-automatic hollow guide rail reshaping device hollow guide rail rest area; Make the inductor that compresses on the locating piece of contact end, hollow guide rail end;
(2) the semi-automatic hollow guide rail reshaping device triggering signal rear drive equipment that compresses of accepting to compress inductor drives movable holddown pressing shaping;
(3) finish when pressing, unclamp the contact contact and unclamp inductor and trigger drive unit and drive movable holddown and move apart.
Certainly, can carry out before carrying out the pressure testing operation and using adjusting device to regulate the fixedly step of briquetting position in step (1) according to the hollow guide rail width.
Owing to adopt the semi-automatic hollow guide rail reshaping device of present embodiment to make the shaping efficient of hollow guide rail improve greatly, and owing to can regulate plastic precision by adjusting device, make the quality level of hollow guide rail be greatly improved, realize semi-automatic process, reduced workman's technical merit requirement.
Above-mentioned example only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the people who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All spirit essence is done according to the present invention equivalent transformation or modification all should be encompassed within protection scope of the present invention.
Claims (7)
1. semi-automatic hollow guide rail reshaping device, comprise frame (1), it is characterized in that being provided with in opposite directions on the described frame fixedly briquetting (2) and movable holddown (3), described movable holddown (3) arranged outside drive unit (4), described drive unit driving movable holddown (3) move and cooperate the shaping hollow guide rail with the fixedly briquetting (2) of fixed-site; What described frame (1) upper end was provided with horizontally-guided compresses track (6), and the described track that compresses is perpendicular to the hollow guide rail spigot surface, and described movable holddown (3) with compress track and cooperate the slip of leading; Described drive unit (4) is a compressed oil cylinder, and the push rod of described compressed oil cylinder is connected with movable holddown (3); The push rod of described compressed oil cylinder promotes movable holddown (3) and slides and cooperate pressing with fixing briquetting along compressing track (6); Described frame upper end is provided with low level workbench (11) and high-order workbench (12), high-order workbench (12) and low level workbench (11) are fixed with frame, described fixedly briquetting is fixedly installed on the high-order workbench (12), the described track (6) that compresses is arranged on the low level workbench, between described fixedly briquetting (2) and movable holddown (3) the end locating piece is set, fixedly briquetting (2) and end locating piece form the hollow guide rail rest area on the described high-order workbench.
2. semi-automatic hollow guide rail reshaping device according to claim 1, it is characterized in that described fixedly briquetting and frame are fixing by set bolt (21), the one side contacts with hollow guide rail, the adjusting device that the opposite side setting can be regulated according to the hollow guide rail width.
3. semi-automatic hollow guide rail reshaping device according to claim 2 is characterized in that described adjusting device comprises the adjusting screw(rod) (5) that is connected with frame, described adjusting screw(rod) one end and fixing briquetting close-fitting; Strip through-hole (22) is set on the described fixedly briquetting, and described set bolt (21) is connected and fixed briquetting and frame by strip through-hole.
4. semi-automatic hollow guide rail reshaping device according to claim 1 is characterized in that described device also comprises control system; Described control system comprise be arranged on the locating piece of end induction hollow guide rail end compress inductor (71), when hollow guide rail was placed, end in contact compressed inductor (71) and triggers control system control movable holddown (3) and slide and cooperate the pressing shaping with fixing briquetting before the hollow guide rail.
5. semi-automatic hollow guide rail reshaping device according to claim 1, it is characterized in that the described high-order workbench outside also is provided with unclamps inductor (72), be provided with on the described movable holddown with unclamp that inductor (72) is used unclamp contact (31); When the movable holddown pressing puts in place, describedly unclamp contact (31) and unclamp inductor (72) and contact and trigger control system control movable holddown and cooperate slip to move apart fixedly briquetting with hollow guide rail.
6. the shaping methods of an end distortion hollow guide rail that adopts the described semi-automatic hollow guide rail reshaping device of claim 1 is characterized in that said method comprising the steps of:
(1) the hollow guide rail of shaping is not placed in the semi-automatic hollow guide rail reshaping device hollow guide rail rest area, makes the inductor that compresses on the locating piece of contact end, hollow guide rail end;
(2) the semi-automatic hollow guide rail reshaping device triggering signal rear drive equipment that compresses of accepting to compress inductor drives movable holddown pressing shaping;
(3) described high-order workbench arranged outside is unclamped inductor, is provided with on the described movable holddown and unclamps the contact that unclamps that inductor is used; When pressing finishes, unclamp the contact contact and unclamp inductor and trigger drive unit and drive movable holddown and move apart.
7. shaping methods according to claim 6 is characterized in that described method also is included in step (1) and carries out before carrying out the pressure testing operation and using adjusting device to regulate the fixedly step of briquetting position according to the hollow guide rail width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910186338XA CN101695724B (en) | 2009-10-22 | 2009-10-22 | Semi-automatic hollow guide rail reshaping device and reshaping method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910186338XA CN101695724B (en) | 2009-10-22 | 2009-10-22 | Semi-automatic hollow guide rail reshaping device and reshaping method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101695724A CN101695724A (en) | 2010-04-21 |
| CN101695724B true CN101695724B (en) | 2011-06-22 |
Family
ID=42140870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910186338XA Expired - Fee Related CN101695724B (en) | 2009-10-22 | 2009-10-22 | Semi-automatic hollow guide rail reshaping device and reshaping method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101695724B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103658246B (en) * | 2013-11-29 | 2015-09-30 | 湖州埭溪振华工贸有限公司 | A kind of means for correcting of motorcycle frame elbow |
| CN106002302A (en) * | 2016-07-22 | 2016-10-12 | 马拉兹(江苏)电梯导轨有限公司 | Automatic assembly line of hollow guide rail |
| CN107486507A (en) * | 2017-09-22 | 2017-12-19 | 湖北大运汽车有限公司 | A kind of U-bolt compacting deformation frock |
| CN108906920A (en) * | 2018-05-25 | 2018-11-30 | 南京理工大学 | A kind of special equipment for T-type elevator guide rail automatic aligning |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1928333A1 (en) * | 1969-06-03 | 1970-12-17 | Bochumeer Eisenhuette Heintzma | Bending and straightening machine for - shaped sections |
| JP2007296549A (en) * | 2006-04-28 | 2007-11-15 | Hirose & Co Ltd | Apparatus for straightening steel sheet pile |
| CN101288875A (en) * | 2007-04-16 | 2008-10-22 | 长江润发集团有限公司 | Processing technique of hot rolling section steel for high precision lift guide rail |
-
2009
- 2009-10-22 CN CN200910186338XA patent/CN101695724B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1928333A1 (en) * | 1969-06-03 | 1970-12-17 | Bochumeer Eisenhuette Heintzma | Bending and straightening machine for - shaped sections |
| JP2007296549A (en) * | 2006-04-28 | 2007-11-15 | Hirose & Co Ltd | Apparatus for straightening steel sheet pile |
| CN101288875A (en) * | 2007-04-16 | 2008-10-22 | 长江润发集团有限公司 | Processing technique of hot rolling section steel for high precision lift guide rail |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101695724A (en) | 2010-04-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205888552U (en) | Shear type bender | |
| CN103658388B (en) | A kind of progressive die and method for producing automotive seat slideway retainer | |
| CN101695724B (en) | Semi-automatic hollow guide rail reshaping device and reshaping method thereof | |
| CN110102921A (en) | A kind of laser cutting device feeder | |
| CN111112449B (en) | High-efficient panel beating stamping equipment | |
| CN109230460B (en) | Auxiliary feeding and positioning and clamping device and positioning and clamping method | |
| CN211840938U (en) | Six brill mills machine in duplex position numerical control | |
| CN211135170U (en) | Steel band forming machine for Germany type hose clamp | |
| CN210587385U (en) | Hydraulic plate shearing machine for shearing automobile metal plate | |
| CN201684806U (en) | Hydraulic press for forming hoisting crane runway platens | |
| CN216940032U (en) | Polishing equipment for sheet metal machining | |
| CN217223113U (en) | Metal part stamping forming equipment with cutting function | |
| CN114178425B (en) | Workpiece punching machine with automatic discharging function | |
| CN113458236B (en) | Reinforced rear cross beam die and control method thereof | |
| CN102166601B (en) | High-speed and a step-by-step forming die and method for stamping part of guide rail | |
| CN212884543U (en) | Hydraulic forming machine | |
| CN2533978Y (en) | Plate shearing and bending dual-purpose machine tool | |
| CN201644638U (en) | High-speed fractional molding die for guide rail class stamping parts | |
| CN211304463U (en) | Automatic stamping die of ejection of compact | |
| CN206241071U (en) | With reverse wedge mechanism mould assembly | |
| CN201046492Y (en) | Preshearing pressure feeding apparatus | |
| CN203076419U (en) | Punching die of push rod assembly on vacuum booster | |
| CN209349769U (en) | A kind of HDPE steel band reinforced spiral ripple pipe steel band welder | |
| CN201645570U (en) | Floor seamless cutting machine | |
| CN201586695U (en) | Steel backing chamfering equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110622 |