CN101947764B - Pneumatic rubber tube assembling machine - Google Patents
Pneumatic rubber tube assembling machine Download PDFInfo
- Publication number
- CN101947764B CN101947764B CN201010275210.3A CN201010275210A CN101947764B CN 101947764 B CN101947764 B CN 101947764B CN 201010275210 A CN201010275210 A CN 201010275210A CN 101947764 B CN101947764 B CN 101947764B
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- mold
- cylinder
- assembling machine
- rubber tube
- compression
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Abstract
The invention provides a pneumatic rubber tube assembling machine comprising an operating platform, a rubber pipe clamping device, a connector clamping device and a compressed air pipeline, wherein, the rubber pipe clamping device comprises a vertical cylinder, a clamping fixture seat and a clamping fixture; the cylinder punch of the vertical cylinder is vertically opposite to the upper surface of the clamping fixture seat; the connector clamping device comprises a horizontal cylinder, a propelled clamping fixture seat and a propelled clamping fixture, the propelled clamping fixture is arranged on the propelled clamping fixture seat in a sliding manner; the first end of the propelled clamping fixture is horizontally opposite to the cylinder punch of the horizontal cylinder; the second end of the propelled clamping fixture is opposite to the rubber pipe fixed by the rubber pipe clamping device; and the compressed air pipeline is respectively communicated with the horizontal cylinder and the vertical cylinder through pipelines. The pneumatic rubber tube assembling machine of the invention substitutes a mechanical method for manual operation, leads the assembling process to be more labor-saving, improves the working efficiency, and ensures the assembling quality.
Description
Technical field
The present invention relates to mechanical package technology, particularly a kind of pneumatic rubber tube assembling machine.
Background technology
In current machine-building, maintenance industry, extensively there is sebific duct and rubber hose coupling is connected and installed this operation.Such as, in railway locomotive assembling procedure, need corrugated connector body (being commonly called as handshaking type joint) to be connected with truck brake cylinder flexible pipe (i.e. sebific duct).In prior art, normally to adopt man-made assembly mode connection rubber tube and corrugated connector body.First, corrugated connector body is fixed on bench vice, then, is firmly filled in sebific duct.
But, there is following technological deficiency in the mounting means of above-mentioned prior art: because both sebific duct and corrugated connector body are interference fit, the limited strength of operator, assembling process is very difficult, effort, even if experienced, packaging efficiency is also very low, and each assembling in man-hour is less than three finished products; And assembling quality is poor, uneven, connect after often there is assembling and loosen and do over again.
Summary of the invention
The object of this invention is to provide a kind of pneumatic rubber tube assembling machine, to solve in prior art the low and ropy problem of existing sebific duct installation effectiveness, improve installation effectiveness and the installation quality of sebific duct.
The invention provides a kind of pneumatic rubber tube assembling machine, comprising:
Workbench;
Rubber-tube clamping device, comprise vertical cylinder, compress mold seat and compress mold, described compression mold seat is fixed on described workbench, and described vertical cylinder is fixed on vertical cylinder support, and the upper surface of the cylinder drift of described vertical cylinder and described compression mold seat is vertically opposite; Described compression mold comprises tire and the lower tire of compression in the compression for installing described sebific duct, and in described compression, tire is installed on the cylinder drift of described vertical cylinder, and under described compression, tire is installed in the groove of the upper surface of described compression mold seat;
Joint-clamping device, comprise horizontal air cylinder, advance mold seat and advance mold, described propelling mold seat is fixed on described workbench, and the described propelling mold for anchor tip is slidably arranged in described propelling mold seat; The first end of described propelling mold is relative with the cylinder drift level of described horizontal air cylinder, and the described sebific duct that the second end of described propelling mold is fixing with described rubber-tube clamping device is relative;
Compressed air line, described compressed air line is connected with vertical cylinder with described horizontal air cylinder respectively by pipeline.
Pneumatic rubber tube assembling machine as above, in described compression, tire and the lower tire of compression are semicircle steel pipe.
Pneumatic rubber tube assembling machine as above, described propelling mold seat comprises propelling mold floor strip, described propelling mold floor strip is provided with short slot, and the bottom of described propelling mold is provided with the first casting lug thereon, and described first casting lug thereon snaps in described short slot and is slidably connected.
Pneumatic rubber tube assembling machine as above, described propelling mold seat also comprises propelling mold base plate, and described propelling mold base plate is arranged on the below of described propelling mold floor strip, and is connected and fixed by bolt and described propelling mold floor strip.
Pneumatic rubber tube assembling machine as above, the upper surface of the second end of described propelling mold is provided with opening up semi-circular recesses; And the both sides of described second end are welded with the second casting lug thereon, described second casting lug thereon is provided with pin-and-hole.
Pneumatic rubber tube assembling machine as above, the first end of described propelling mold is provided with the hook-shaped casting lug thereon for fixing described joint afterbody.
Pneumatic rubber tube assembling machine as above, described hook-shaped casting lug thereon is fixed on described propelling mold, and relative with the cylinder drift level of described horizontal air cylinder.
Pneumatic rubber tube assembling machine as above, the first pipeline that described compressed air line is connected with described vertical cylinder is provided with and manually compresses control valve, the second pipeline that described compressed air line is connected with described horizontal air cylinder is provided with manual propulsion control valve.
Pneumatic rubber tube assembling machine of the present invention, by adopting compressed air to be power, replacing manual operations to mechanically, making the assembling process between joint and sebific duct more laborsaving, improve operating efficiency; And ensure that assembling quality.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of pneumatic rubber tube assembling machine embodiment of the present invention;
Fig. 2 is the side view in the propelling mold portion in Fig. 1;
Fig. 3 is the top view in the propelling mold portion in Fig. 1;
Fig. 4 is the application state schematic diagram of pneumatic rubber tube assembling machine embodiment of the present invention.
Description of reference numerals:
11-workbench; 12-compresses mold seat; 13-vertical cylinder;
14-vertical cylinder support; 15-cylinder drift; 16-horizontal air cylinder;
17-advances mold seat; 18-advances mold; 19-advances mold base plate;
20-advances mold floor strip; 21-cylinder drift; 22-second casting lug thereon;
23-pin-and-hole; The hook-shaped casting lug thereon of 24-; 25-compressed air line;
26-manually compresses control valve; The manual propulsion control valve of 27-; 28-4 divides right angle three way valve;
29-sebific duct; 30-handshaking type joint; 31-short slot;
32-bolt.
Detailed description of the invention
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belongs to the scope of protection of the invention.
Fig. 1 is the structural representation of pneumatic rubber tube assembling machine embodiment of the present invention, as shown in Figure 1, the pneumatic rubber tube assembling machine of the present embodiment comprises workbench 11, and this workbench 11 can by 50 millimeters × 50 millimeters, and the angle steel of thick 5 millimeters is welded, long 1500 millimeters altogether, high 700 millimeters, wide 600 millimeters, the thick 8-10 millimeter in top, long 1500 millimeters, the steel plate of wide 600 millimeters is as work top.
This workbench 11 is also provided with rubber-tube clamping device and joint-clamping device, and wherein, rubber-tube clamping device comprises vertical cylinder, compresses mold seat and compress mold, for clamping sebific duct; Joint-clamping device comprises horizontal air cylinder, advances mold seat and advance mold, for clamping rubber hose coupling; This pneumatic rubber tube assembling machine also comprises for this pneumatic rubber tube assembling machine provides the compressed air line of power.Below respectively the structure of each several part is described in detail.
Concrete, the rubber-tube clamping device in the present embodiment pneumatic rubber tube assembling machine can comprise compression mold seat 12, vertical cylinder 13 and and compress mold.Wherein, compress mold seat 12 and be fixed on workbench 11, such as can by welding two long 50 millimeters × wide 50 millimeters × thick 5 millimeters on workbench 11, materials length is the angle steel of 100 millimeters, for the mold seat 12 that is fixed and clamped.This mold seat 12 that is fixed and clamped can by thick 6 millimeters, and the Plate Welding of wide 100 millimeters forms, and after having welded, this mold seat 12 that is fixed and clamped can be high 100 millimeters, wide 120 millimeters, long 150 millimeters.The be fixed and clamped bottom of mold seat 12 can be placed on the outside of two angle steel of workbench 11.
This workbench 11 is also fixed with vertical cylinder support 14, namely vertical cylinder 13 can be bolted on this vertical cylinder support 14 by 4 M16, and the cylinder drift 15 of this vertical cylinder 13 is vertically opposite with the upper surface compressing mold seat 12, cylinder drift 15 can be set to 200 millimeters with the distance on workbench 11 surface.The vertical cylinder 13 of the present embodiment can adopt the diameter of 200ZZ type to be 203 millimeters, and stroke is the locomotive brake cylinder of 120 millimeters.
Compression mold is wherein used for the sebific duct that is fixedly clamped, and it can comprise compression above tire and the lower tire of compression, and in this compression, tire can be made for semicircle steel pipe with the lower tire of compression.In compression, tire can be installed on the cylinder drift 15 of vertical cylinder 13, compresses lower tire and can be installed in the groove of the upper surface compressing mold seat 12.
In the present embodiment, the side near rubber-tube clamping device is provided with joint-clamping device.Joint-clamping device in the present embodiment pneumatic rubber tube assembling machine can comprise horizontal air cylinder 16, advances mold seat 17 and advance mold 18.Wherein, horizontal air cylinder 16 can be mounted on workbench 11, four circular holes of diameter 18 millimeters such as can be set in the horizontal center line both sides of workbench 11 respectively, by the bolt of 4 M16, horizontal air cylinder 16 is fixed on the upper of workbench 11, and the edge of the afterbody of horizontal air cylinder 16 distance workbench 11 can be 30 millimeters.This horizontal air cylinder 16 can adopt the diameter of 200ZZ type to be 203 millimeters, and stroke is the locomotive brake cylinder of 120 millimeters.
The structure in the propelling mold portion advancing mold seat and advance mold to form can be the side view in the propelling mold portion in Fig. 1 see Fig. 2 and Fig. 3, Fig. 2, and Fig. 3 is the top view in the propelling mold portion in Fig. 1.Propelling mold seat 17 is wherein fixed on workbench 11, and it can comprise propelling mold floor strip 20.This propelling mold floor strip 20 can comprise two, left and right, and respectively with long 300 millimeters, wide 60 millimeters, L-type made by the steel plate of thick 20 millimeters, and the short slot 31 that cross section is 10 × 10 millimeters is processed in the side of every root press strip.Can also comprise and advance mold base plate 19, they can by long 300 millimeters, and wide 140 millimeters, the steel plate of thick 10 millimeters is made.This propelling mold base plate 19 is arranged on the below of described propelling mold floor strip 20, advancing mold base plate 19 and advancing hole mold floor strip 20 having four diameters 13 millimeters, every root advances the hole that mold floor strip 20 can be processed with respectively two diameters 13 millimeters, the corresponding middle part of workbench 11 is also provided with four circular holes of diameter 13 millimeters, advances mold base plate 19 for installing and advances mold floor strip 20.By bolt 32, described propelling mold base plate 19, propelling mold floor strip 20 and workbench 11 can be connected and fixed.
Advance mold 18 for fixing glue pipe joint, it is arranged on and advances on mold seat 17.The first end of this propelling mold 18 is relative with cylinder drift 21 level of horizontal air cylinder 16, and the second end is relative with the sebific duct that rubber-tube clamping device is fixed.
Further, the upper surface at the second end place relative with rubber-tube clamping device of mold 18 is advanced to be provided with opening up semi-circular recesses, for being positioned over by rubber hose coupling in this groove; And this second end place can arrange the second casting lug thereon 22 in both sides welding, this second casting lug thereon 22 is arranged and is used for the pin-and-hole 23 fixing with rubber hose coupling pin joint, this pin-and-hole 23 can be the hole of diameter 10 millimeters, after being placed on above-mentioned groove at rubber hose coupling, the pin-and-hole on this pin-and-hole 23 and rubber hose coupling is passed again by bearing pin, carry out pin joint to rubber hose coupling to fix, make it possible to better clamp rubber hose coupling.
Further, advance the first end relative with cylinder drift 21 level of horizontal air cylinder 16 of mold 18 that a hook-shaped casting lug thereon 24 can be set, this hook-shaped casting lug thereon 24 can be fixed on and advance on mold, it is for hooking the rear portion of rubber hose coupling, more firmly can must be placed on advance on mold to make rubber hose coupling.
In addition, this propelling mold 18 can be slidably fixed on and advance on mold seat 17.Concrete, can respectively arrange a casting lug thereon advancing the both sides, bottom of mold 18, two casting lug thereons can be respectively used to embed in the short slot on above-mentioned propelling mold floor strip 20, are slidably connected to form with this short slot.
In the present embodiment, the compressed air line 25 in pneumatic rubber tube assembling machine is connected with vertical cylinder 13 with horizontal air cylinder 16 respectively by pipeline.Wherein, compressed air line 25 can adopt seamless steel pipe to make, and its first pipeline be connected with vertical cylinder 13 can be arranged and manually compress control valve 26, its second pipeline be connected with horizontal air cylinder 16 can arrange manual propulsion control valve 27.In addition, the first above-mentioned pipeline and the second pipeline can control the break-make with compressed air line by 4 points of right angle three way valves 28.The compressed air of 0.5MPa can be adopted in the present embodiment to be power.
Illustrate the operation principle of the pneumatic rubber tube assembling machine of the present embodiment below in conjunction with Fig. 4, wherein, Fig. 4 is the application state schematic diagram of pneumatic rubber tube assembling machine embodiment of the present invention.Sebific duct and handshaking type joint carry out being assembled into example to utilize the pneumatic rubber tube assembling machine shown in Fig. 1 by the present embodiment, and the application of pneumatic rubber tube assembling machine is described.
First, rubber-tube clamping device compresses sebific duct 29.Concrete, sebific duct 29 needs first to load in Rubber tube clip in a pre-installation, and the nut loosening of Rubber tube clip is a little, is enclosed within the sebific duct 29 that will install.Then, sebific duct 29 is placed on and compresses under compression that mold seat 12 upper surface place arranges on tire, start and manually compress control valve 26, vertical cylinder 13 starts to start, its cylinder drift 15 moves down, tire in the compression of installation on the cylinder drift 15 of vertical cylinder 13 is moved down thereupon, coordinates with the lower tire of compression and sebific duct 29 is compressed.
Then, joint-clamping device clamps handshaking type joint 30.Concrete, handshaking type joint 30 is placed in the groove of the left end advancing mold 18, fix handshaking type joint 30 by bearing pin through the pin-and-hole 23 on the second casting lug thereon 22 again, handshaking type joint 30 fix and aligns the sebific duct mouth of the sebific duct 29 that rubber-tube clamping device is fixed.In addition, hook the rear portion of handshaking type joint 30 with the hook-shaped casting lug thereon 24 advancing the first end place of mold 18 to arrange, more firm must being fixed on of handshaking type joint 30 is advanced on mold 18.
Then, start manual propulsion control valve 27, horizontal air cylinder 16 starts to start, and its cylinder drift 21 starts to be moved to the left under the gas pressure passed into, and withstands hook-shaped casting lug thereon 24.And promote to advance mold 18 to move forward, handshaking type joint 30 is inserted in sebific duct 29.
Finally, after treating that handshaking type joint 30 inserts in sebific duct 29 completely, take off the bearing pin advancing and wear in the pin-and-hole 23 on mold 18, and decontrol hook-shaped casting lug thereon 24, make it the rear portion of no longer hooking handshaking type joint, namely unclamp and advance the fixing of mold 18 pairs of handshaking type joints 30.Start manual propulsion control valve 27 again, move after making propelling mold 18 and return.Start and manually compress control valve 26, make tire moves the compression on vertical cylinder 13, unclamp the sebific duct 29 being fixed on and compressing upper tire and compress between lower tire.Take out mounted sebific duct 29, now handshaking type joint 30 inserts in sebific duct 29 completely, tightens the screw of Rubber tube clip.
The pneumatic rubber tube assembling machine of the present embodiment in actual applications, achieves remarkable result.Such as, adopt the manual mode assemble method of prior art, per tour can only complete 15 sebific duct assembling assemblings, and quality cannot ensure, often has phenomenon of doing over again.And after using the pneumatic rubber tube assembling machine of the present embodiment, per tour can complete about 200 sebific duct assembling assemblings, and quality is all qualified, without doing over again phenomenon; Substantially increase operating efficiency and assembling quality,
The pneumatic rubber tube assembling machine of the present embodiment, by adopting compressed air to be power, replaces manual operations to mechanically, firmly proper, is in place, makes assembling process more laborsaving, improve operating efficiency; And ensure that assembling quality; This pneumatic rubber tube assembling machine overall volume is less, structure is simple, with low cost and convenient and practical, very suitable examples as in domestic each locomotive works and locomotive depot's maintenance use.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (7)
1. a pneumatic rubber tube assembling machine, is characterized in that, comprising:
Workbench;
Rubber-tube clamping device, comprise vertical cylinder, compress mold seat and compress mold, described compression mold seat is fixed on described workbench, and described vertical cylinder is fixed on vertical cylinder support, and the upper surface of the cylinder drift of described vertical cylinder and described compression mold seat is vertically opposite; Described compression mold comprises tire and the lower tire of compression in the compression for installing described sebific duct, and in described compression, tire is installed on the cylinder drift of described vertical cylinder, and under described compression, tire is installed in the groove of the upper surface of described compression mold seat;
Joint-clamping device, comprise horizontal air cylinder, advance mold seat and advance mold, described propelling mold seat is fixed on described workbench, and the described propelling mold for anchor tip is slidably arranged in described propelling mold seat; The first end of described propelling mold is relative with the cylinder drift level of described horizontal air cylinder, and the described sebific duct that the second end of described propelling mold is fixing with described rubber-tube clamping device is relative;
Compressed air line, described compressed air line is connected with vertical cylinder with described horizontal air cylinder respectively by pipeline;
Described propelling mold seat comprises propelling mold floor strip, and described propelling mold floor strip is provided with short slot, and the bottom of described propelling mold is provided with the first casting lug thereon, and described first casting lug thereon snaps in described short slot and is slidably connected.
2. pneumatic rubber tube assembling machine according to claim 1, is characterized in that, in described compression, tire and the lower tire of compression are semicircle steel pipe.
3. pneumatic rubber tube assembling machine according to claim 1, it is characterized in that, described propelling mold seat also comprises propelling mold base plate, and described propelling mold base plate is arranged on the below of described propelling mold floor strip, and is connected and fixed by bolt and described propelling mold floor strip.
4. pneumatic rubber tube assembling machine according to claim 1, is characterized in that, the upper surface of the second end of described propelling mold is provided with opening up semi-circular recesses; And the both sides of described second end are welded with the second casting lug thereon respectively, described second casting lug thereon is provided with pin-and-hole.
5. pneumatic rubber tube assembling machine according to claim 1, is characterized in that, the first end of described propelling mold is provided with the hook-shaped casting lug thereon for fixing described joint afterbody.
6. pneumatic rubber tube assembling machine according to claim 5, is characterized in that, described hook-shaped casting lug thereon is fixed on described propelling mold, and relative with the cylinder drift level of described horizontal air cylinder.
7. pneumatic rubber tube assembling machine according to claim 1, it is characterized in that, the first pipeline that described compressed air line is connected with described vertical cylinder is provided with and manually compresses control valve, the second pipeline that described compressed air line is connected with described horizontal air cylinder is provided with manual propulsion control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010275210.3A CN101947764B (en) | 2010-09-07 | 2010-09-07 | Pneumatic rubber tube assembling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010275210.3A CN101947764B (en) | 2010-09-07 | 2010-09-07 | Pneumatic rubber tube assembling machine |
Publications (2)
| Publication Number | Publication Date |
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| CN101947764A CN101947764A (en) | 2011-01-19 |
| CN101947764B true CN101947764B (en) | 2015-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010275210.3A Expired - Fee Related CN101947764B (en) | 2010-09-07 | 2010-09-07 | Pneumatic rubber tube assembling machine |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102773657A (en) * | 2012-08-09 | 2012-11-14 | 天津南玻节能玻璃有限公司 | Drive roller rubber pipe installation device used for toughened glass production line |
| CN104108088B (en) * | 2014-07-03 | 2016-08-24 | 浙江立福达机械股份有限公司 | A kind of piston rod and the mounting tool of clasp |
| CN105459049A (en) * | 2015-12-29 | 2016-04-06 | 天津鹏翎胶管股份有限公司 | Rubber tube and rubber tube connecting piece assembling structure and assembling workbench |
| CN108098685B (en) * | 2018-01-31 | 2020-06-19 | 京东方科技集团股份有限公司 | Rubber tube joint dismounting device |
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|---|---|---|---|---|
| CN2060718U (en) * | 1989-11-14 | 1990-08-22 | 上海电机厂 | Hand pocket lock joint appliance for flexible conduit joint |
| PL198022B1 (en) * | 1999-07-30 | 2008-05-30 | Contitech Luftfedersyst Gmbh | Method and device for tightly fixing a piece of flexible tubing consisting of an elastomer material to a connecting part |
| CN201271865Y (en) * | 2008-10-10 | 2009-07-15 | 尤建义 | Apparatus for clipping rubber tube fast mounting pipe joint |
| CN101623817A (en) * | 2008-07-08 | 2010-01-13 | 庄添财 | Front fork bowl pull-in machine |
| CN201833329U (en) * | 2010-09-07 | 2011-05-18 | 北京二七轨道交通装备有限责任公司 | Pneumatic mounting machine for rubber pipes |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04365566A (en) * | 1991-06-10 | 1992-12-17 | Sekisui Chem Co Ltd | Insertion method for pipe and jig for inserting pipe |
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2010
- 2010-09-07 CN CN201010275210.3A patent/CN101947764B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2060718U (en) * | 1989-11-14 | 1990-08-22 | 上海电机厂 | Hand pocket lock joint appliance for flexible conduit joint |
| PL198022B1 (en) * | 1999-07-30 | 2008-05-30 | Contitech Luftfedersyst Gmbh | Method and device for tightly fixing a piece of flexible tubing consisting of an elastomer material to a connecting part |
| CN101623817A (en) * | 2008-07-08 | 2010-01-13 | 庄添财 | Front fork bowl pull-in machine |
| CN201271865Y (en) * | 2008-10-10 | 2009-07-15 | 尤建义 | Apparatus for clipping rubber tube fast mounting pipe joint |
| CN201833329U (en) * | 2010-09-07 | 2011-05-18 | 北京二七轨道交通装备有限责任公司 | Pneumatic mounting machine for rubber pipes |
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| CN101947764A (en) | 2011-01-19 |
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Address after: 100072 Beijing city Fengtai District Changxindian Yang Gong Zhuang No. 1 Patentee after: CNR BEIJING FEB.7TH LOCOMOTIVE CO., LTD. Address before: 100072 Beijing city Fengtai District Changxindian Yang Gong Zhuang No. 1 Patentee before: Beijing Erqi Railway Traffic Equipment Co., Ltd. |
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