CN102554065B - Clamp strip pressing device - Google Patents
Clamp strip pressing device Download PDFInfo
- Publication number
- CN102554065B CN102554065B CN201110460683.5A CN201110460683A CN102554065B CN 102554065 B CN102554065 B CN 102554065B CN 201110460683 A CN201110460683 A CN 201110460683A CN 102554065 B CN102554065 B CN 102554065B
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- gear
- clamp strip
- die
- strip pressing
- pressing device
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Abstract
A clamp strip pressing device comprises a framework, a transmission mechanism and a motor mounted on the framework. A pressing die tooling, a straightening tooling and a winding wheel are sequentially arranged on the framework. The pressing die tooling comprises a die support, an upper die and a lower die, wherein the die support is fixedly mounted on the framework, the upper die and the lower die are circular and rotationally mounted on the die support, and shapes of outer circumferences of the upper die and the lower die are the same with those of the upper surface and the lower surface of assorted clamp strips. The straightening tooling comprises a straightening support and at least two straightening wheels, wherein the straightening support is fixedly mounted on the framework, and the straightening wheels are mounted on the straightening support. The transmission mechanism comprises a speed changing box driven by the motor, the speed changing box drives the upper die and the lower die to rotate towards the feeding direction of the clamp strips in the equal tangent speed by a gear transmission mechanism, and the speed changing box drives the winding wheel to rotate under action of a chain transmission mechanism. The clamp strip pressing device is simple in structure, convenient to implement and capable of being used for producing clamp strips directly by the pressing process conveniently, quickly and effectively.
Description
Technical field
The present invention relates to a kind of clamp strip pressing device, this clamp strip pressing device produces the connecting band that the cassette tape obtained mainly is used as clip.
Background technology
Clip is mainly used in the fastening and sealing of the connection of the interfaces such as the plant equipment such as vehicle, boats and ships, diesel engine and lathe, the common all rubber hose of chemical industry equipment, nylon plastic(s) flexible pipe, fabric hose and water-band.Clip comprises cassette tape and the snap close for being fastenedly connected cassette tape two ends, in clip conventional at present, cassette tape is fixed in clip snap close, and each clip is to be equipped with the cassette tape of certain length according to specification, this just makes clip often can run into the long or too short situation of cassette tape in actual use, this not only brings certain trouble to practical operation, and reduces the utilization rate of cassette tape, causes the waste of material.
If when using clip, the cassette tape of clip suitable length according to actual needs, this just makes operator must carry with the cassette tape of certain length, but rectangular cassette tape is extremely inconvenient when carrying, and gives and uses the clip can matching cassette tape according to actual needs to bring larger inconvenience.
The patent No. is that the Chinese patent of CN200920117307.4 discloses a kind of take-up reel, and this take-up reel successfully solves carrying problem and making cassette tape facilitate cutting of long cassette tape, but does not solve the production problem of long cassette tape; The patent No. is that the Chinese patent of CN200920117306.X discloses a kind of flip-type fast-assembling lock catch, and the cassette tape of threaded random length can clamp and unclamp by this flip-type fast-assembling lock catch fast, but does not solve how to obtain this threaded long cassette tape equally.
Given this, the present invention is intended to explore a kind of clamp strip pressing device, and this cassette tape hypotype device not only structure is simple, and it is convenient to implement, and can produce long cassette tape quickly and easily by die mould technique.
Summary of the invention
The technical problem to be solved in the present invention proposes a kind of clamp strip pressing device, and this clamp strip pressing device not only structure is simple, and it is convenient to implement, and die mould technique can be utilized directly to produce cassette tape, fast and easy, and efficiency is high.
Realize above-mentioned technical purpose, clamp strip pressing device of the present invention, the motor comprising frame, transmission mechanism and be arranged in described frame, described frame is provided with successively pressing mold frock, alignment frock and winding wheel; Described pressing mold frock comprises the mould rack be fixedly mounted in described frame, and being rotatably mounted on upper die and lower die on described mould rack and rounded respectively, the outer peripheral face of described upper die and lower die is identical with underside shape with the upper surface of supporting cassette tape respectively; Described alignment frock comprises the alignment support be fixedly mounted in described frame and at least two the alignment runners be arranged on described alignment support; Described transmission mechanism comprises the gearbox driven by described motor, described gearbox drives upper die and lower die to rotate towards supporting cassette tape direction of feed with equal tangential velocity by gear drive, and described winding wheel drives rotation by described gearbox under the effect of chain-drive mechanism.
Further, be connected by V belt translation between described motor with described gearbox.
Further, gear drive comprises and the driving gear of described output shaft of gear-box synchronous axial system and the upper mode-gear that engages with described driving gear, described upper mode-gear and described patrix rotating shaft synchronous axial system, described upper mode-gear be arranged on counterdie gears meshing in described counterdie rotating shaft, and described upper mode-gear and the gearratio of described lower mode-gear equal the ratio of counterdie and mode diameters.
Further, described upper die and lower die equal diameters, the gearratio of described upper mode-gear and lower mode-gear is 1.
Further, the outer peripheral face of described patrix is provided with projection circumferentially, described counterdie outer peripheral face is provided with the groove matched with described projection, and described projection is equal with the width of supporting cassette tape with groove, and is provided with the mould tooth be meshed with the profile of tooth of supporting cassette tape in the middle part of described projection.
Further, described driving gear engages with the gear train be arranged on described alignment support, and described chain-drive mechanism is arranged between described gear train output shaft and described winding wheel rotating shaft.
Further, described winding wheel rotating shaft is also provided with clutch, and described clutch is between described winding wheel and sprocket wheel.
Further, the periphery wall of described winding wheel is provided with draw-in groove and friction plate.
Further, described mould rack is also provided with the governor motion of the spacing for regulating described patrix and counterdie, described governor motion comprises the slide rail be arranged on described mould rack and the slide block be sleeved in described patrix rotating shaft, described mould rack is also provided with the adjusting bolt acting on described upper end of slide block face.
Further, the frame be positioned on front side of described pressing mold frock is provided with charging aperture.
Further, described alignment runner comprises the alignment runner rotating shaft be fixedly mounted on described alignment support and the rolling bearing be sleeved in the rotating shaft of described alignment runner.
Further, also comprise counting device, described counting device comprise with the moving block of described patrix rotating shaft or counterdie rotating shaft synchronous axial system and with this moving block the corresponding sensor arranged.
Further, described motor is buncher, and described frame is provided with the speed regulator be electrically connected with this buncher.
Further, also comprise distribution box, described distribution box is connected with described motor and sensor electrical.
Beneficial effect of the present invention is:
1, clamp strip pressing device of the present invention is rotated by the upper die and lower die arranging motor and transmission mechanism driving pressing mold frock, outer peripheral face due to upper die and lower die is set to identical with the upper and lower surface of supporting cassette tape, steel band is fed between patrix and counterdie on front side of device, is the shape of supporting cassette tape by pressure; Steel band continues to feeding on rear side of device, and walk around the alignment runner be arranged on alignment support successively, under the effect of alignment runner, correct the distortion such as bending, the fold that steel band occurs due to the effect of pressing mold frock, make steel strip surface smoothly clean and tidy, namely obtain the cassette tape that clamp strip pressing device of the present invention is produced; Steel band continues to feeding on rear side of device, and is wrapped on winding wheel; As from the foregoing, clamp strip pressing device of the present invention not only structure is simple, and it is convenient to implement, and steel band completes the operations such as the die mould of production needed for cassette tape, rectification and rolling successively under the effect of this device, directly obtain the final products of cassette tape, fast and easy and production efficiency is high;
2, by the cutting speed degree of upper die and lower die is set to equal, prevent upper die and lower die in steel band die mould process with steel band generation sliding friction, reduce noise can prevent upper die and lower die from wearing and tearing, and can improve the quality of products; The mould tooth that the profile of tooth that patrix outer peripheral face is arranged at supporting cassette tape is meshed, can be used for processing belt tooth cassette tape;
3, because winding wheel is in the process being wound around cassette tape, diameter can be more and more large, under changeless rotating speed, the cutting speed degree of winding wheel is greater than the feed speed of cassette tape, chain-drive mechanism can be caused to damage or cassette tape is pulled off, by arranging clutch in winding wheel rotating shaft, after the pulling force acted on winding wheel when cassette tape acquires a certain degree, clutch work makes winding wheel rotating shaft stop operating, and prevents chain-drive mechanism damage or cassette tape to be pulled off;
4, in order to successfully die mould goes out required cassette tape, distance between needing upper die and lower die adjusts, by arranging the distance between governor motion adjustment upper die and lower die, and prevent the distance between patrix and counterdie from changing due to reasons such as vibrations by arranging adjusting bolt, to make by pressing mold frock and the different steel band of thickness can be all required cassette tape by die mould, improve applicability and the reliability of device.
Accompanying drawing explanation
Fig. 1 is clamp strip pressing device example structure schematic diagram of the present invention;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the rearview of Fig. 1;
Fig. 4 is pressing mold tool structure schematic diagram;
Fig. 5 is the left view of Fig. 4;
Fig. 6 is winding wheel structural representation;
Fig. 7 is transmission mechanism structural representation.
Description of reference numerals:
1-frame; 2-motor; 3-winding wheel; 4-mould rack; 5-patrix; 6-counterdie; 7-alignment support; 8-alignment runner; 9-gearbox; 10-steel band; 11-driving gear; The upper mode-gear of 12-; Mode-gear under 13-; 14-idler gear; 15-travelling gear; 16-sprocket wheel; 17-clutch; 18-slide rail; 19-slide block; 20-adjusting bolt; 21-charging aperture; 22-moving block; 23-sensor; 24-speed regulator; 25-distribution box; 26-sprocket wheel.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.
As shown in Figure 1, be clamp strip pressing device example structure schematic diagram of the present invention; Fig. 2 is the top view of Fig. 1; Fig. 3 is the rearview of Fig. 1.
The clamp strip pressing device of the present embodiment, comprises frame 1, transmission mechanism and is arranged on the motor 2 in described frame 1, described frame 1 is provided with successively pressing mold frock, alignment frock and winding wheel 3.Described pressing mold frock comprises the mould rack 4 be fixedly mounted in described frame 1, and to be rotatably mounted on respectively on described mould rack 4 and rounded patrix 5 and counterdie 6, described patrix 5 is identical with underside shape with the upper surface of supporting cassette tape respectively with the outer peripheral face of counterdie 6, patrix 5 and be provided with rolling bearing between counterdie 6 and mould rack 4, reduces the rotary resistance of patrix 5 and counterdie 6.Described alignment frock comprises the alignment support 7 be fixedly mounted in described frame 1 and at least two the alignment runners 8 be arranged on described alignment support 7, as shown in Figure 1, the clamp strip pressing device of the present embodiment is provided with three alignment runners 8, and three alignment runners 8 are not point-blank.Described transmission mechanism comprises the gearbox 9 driven by described motor 2, described gearbox 9 drives patrix 5 and counterdie 6 to rotate towards supporting cassette tape direction of feed with equal tangential velocity by gear drive, and described winding wheel 3 drives rotation by described gearbox 9 under the effect of chain-drive mechanism.The motor 2 of the present embodiment drives gearbox 9 to operate by tape handler, and motor 2 power transmission to gearbox 9, can make gearbox 9 power shaft rotating speed steady by employing tape handler.
The clamp strip pressing device of the present embodiment is rotated by the patrix 5 and counterdie 6 arranging motor 2 and transmission mechanism driving pressing mold frock, because patrix 5 and the outer peripheral face of counterdie 6 are set to identical with the upper and lower surface of supporting cassette tape, steel band 10 is fed between patrix 5 and counterdie 6 on front side of device, under the effect of the pressure, by die mould be the shape of supporting cassette tape.Steel band 10 continues to feeding on rear side of device, and walk around the alignment runner 8 be arranged on alignment support 7 successively, under alignment runner 8 acts on, correct the distortion such as bending, the fold that steel band 10 occurs due to the effect of pressing mold frock, make steel band 10 surface smoothing clean and tidy, the cassette tape that the clamp strip pressing device so just obtaining the present embodiment is produced, is supporting cassette tape as herein described.The alignment runner 8 of the present embodiment is set to not point-blank three.The steel band 10 of distortion fold, is corrected all around alignment runner 8 outer peripheral face generation bending at each alignment runner 8 place by steel band 10 under the effect on self pulling force of steel band 10 and alignment runner 8 smooth arc surface.Steel band 10 continues to feeding on rear side of device, and is wrapped on winding wheel 3.As shown in Figure 2, in order to make steel band 10 feeding smoothly, the outer peripheral face of patrix 5, counterdie 6, alignment runner 8 and winding wheel 3, makes steel band 10 can not bend along the width of steel band 10 in feeding process all point-blank.As from the foregoing, not only structure is simple for the clamp strip pressing device of the present embodiment, and it is convenient to implement, and steel band 10 completes the operations such as the die mould of production needed for cassette tape, rectification and rolling successively under the effect of this device, directly obtain the final products of cassette tape, fast and easy and production efficiency is high.
Further, as shown in Figure 7, gear drive comprises the driving gear 11 rotated with described gearbox 9 output shaft synchronous and the upper mode-gear 12 engaged with described driving gear 11, described upper mode-gear 12 and described patrix 5 rotating shaft synchronous axial system, described upper mode-gear 12 engages with the lower mode-gear 13 be arranged in the rotating shaft of described counterdie 6, and described upper mode-gear 12 equals counterdie 6 and patrix 5 diameter ratio with the gearratio of described lower mode-gear 13.Adopt gear drive to drive patrix 5 and counterdie 6 to rotate, not only can reduce frame for movement space, and speed transmits exactly more; Upper mode-gear 12 and the gearratio of lower mode-gear 13 are set to equal counterdie 6 and patrix 5 diameter ratio, patrix 5 and counterdie 6 can be made with equal-sized tangential velocity choosing dress, prevent patrix 5 or between counterdie 6 and steel band 10, sliding friction occurs.
Preferably, the patrix 5 of the present embodiment and counterdie 6 equal diameters, the gearratio of upper mode-gear 12 and lower mode-gear 13 is 1, adopts the pressing mold tool structure of this structure simple, is easy to make.
Preferably, as shown in Figure 4 and Figure 5, the outer peripheral face of the patrix 5 of the present embodiment is provided with projection circumferentially, counterdie 6 outer peripheral face is provided with the groove matched with described projection, described projection is equal with the width of supporting cassette tape with groove, and namely projection is equal with the width of steel band 10 with groove, adopts the pressing mold frock of this structure by the cooperation of projection and groove, steel band 10 can be limited in groove and carry out die mould, prevent steel band 10 from swinging in die mould process.Preferably, in the middle part of described projection, be provided with the mould tooth be meshed with the profile of tooth of supporting cassette tape, adopt the patrix of this structure to can be used in producing band tooth cassette tape, be namely provided with profile of tooth in the middle part of cassette tape, facilitate the immovable fitting between cassette tape and snap close.
Further, described driving gear 11 engages with the gear train be arranged on described alignment support 7, described chain-drive mechanism is arranged between described gear train output shaft and described winding wheel 3 rotating shaft, and winding wheel 3 can be driven to rotate, and the supporting cassette tape processed is wrapped on winding wheel 3.As shown in Figure 7, the gear train of the present embodiment comprises the idler gear 14 engaged with driving gear 11 and the travelling gear 15 engaged with idler gear 14, the gear shaft of travelling gear 15 is provided with sprocket wheel 16, the rotating shaft of winding wheel 3 is provided with the sprocket wheel 26 coordinated with sprocket wheel 16, and driving gear drives winding wheel to rotate by gear train and chain-drive mechanism.
Preferably, as shown in Figure 6, the rotating shaft of described winding wheel 3 is also provided with clutch 17, described clutch 17 is between described winding wheel 3 and sprocket wheel 16.Because winding wheel 3 is in the process being wound around cassette tape, diameter can be more and more large, under changeless rotating speed, the cutting speed degree of winding wheel 3 is greater than the feed speed of cassette tape, and chain-drive mechanism damage or steel band 10 can be caused to be pulled off, by arranging clutch 17 in winding wheel 3 rotating shaft, after steel band 10 pulling force acted on winding wheel 3 acquires a certain degree, clutch 17 work makes winding wheel 3 rotating shaft temporarily stop operating, and eliminates the pulling force of steel band 10, prevents chain-drive mechanism damage or steel band 10 to be pulled off.In addition, chain-drive mechanism is adopted to drive winding wheel 3 to rotate, driving-chain can be arranged to obtain long enough, when between winding wheel 3 is due to steel band 10 tension can not rotate time, obtain buffer area because driving-chain has long enough, with clutch 17 with the use of, transition gear group and driving gear set rotation can not be affected, and ensureing that chain-drive mechanism does not damage, reliability is high, longer service life.
Preferably, the periphery wall of described winding wheel 3 is provided with draw-in groove and friction plate, by arranging draw-in groove, making steel band 10 be stuck in draw-in groove, preventing steel band 10 from coming off, by arranging friction plate, prevent under the pulling force effect of steel band 10, the cassette tape be wrapped on winding wheel 3 rotates relative to winding wheel.
Further, described mould rack 4 is also provided with the governor motion of the spacing for regulating described patrix 5 and counterdie 6, described governor motion comprises the slide rail 18 be arranged on described mould rack 4 and the slide block 19 be sleeved in the rotating shaft of described patrix 5, described mould rack 4 is also provided with the adjusting bolt 20 acting on described slide block 19 upper surface.In order to successfully die mould goes out required cassette tape, need to adjust the distance between patrix 5 and counterdie 6, by arranging the distance between governor motion adjustment patrix 5 and counterdie 6, and prevent that 20 stop distance between patrix 5 and counterdie 6 and change owing to the reason such as to shake by arranging adjusting bolt, to make by pressing mold frock and the different steel band of thickness can be all required cassette tape by die mould, improve applicability and the reliability of device.
Further, the frame 1 that the clamp strip pressing device of the present embodiment is positioned on front side of described pressing mold frock is provided with charging aperture 21, being balanced by the steel band 10 being about to enter pressing mold frock, preventing steel band 10 from twisting in pressing mold frock by arranging charging aperture 21.
Further, the alignment runner 8 of the present embodiment comprises the alignment runner rotating shaft be fixedly mounted on described alignment support 7 and the rolling bearing be sleeved in the rotating shaft of described alignment runner.Adopt the alignment runner 8 of this structure can avoid, between steel band 10, relative sliding occurs, rolling bearing rotates with the feed speed of steel band 10, makes steel band 10 feeding more steady, prevents friction noise and steel band wearing and tearing.
Further, the clamp strip pressing device of the present embodiment also comprises counting device, described counting device comprise with the moving block 22 of the rotating shaft of described patrix 5 or counterdie 6 rotating shaft synchronous axial system and with this moving block 22 the corresponding sensor 23 arranged.As shown in Figure 1, the moving block 22 of the present embodiment is arranged in patrix 5 rotating shaft, and with patrix rotating shaft synchronous axial system, the sensor 23 of the present embodiment adopts sensor for countering, for gathering the number of turns that patrix 5 rotates, and then can rotate according to patrix 5 length that the number of turns calculates the cassette tape that production obtains.
Further, described motor 2 is buncher, and described frame 1 is provided with the speed regulator 24 be electrically connected with this buncher, and speed regulator 24 can be utilized to regulate motor 2 rotating speed, and then controls steel band 10 feed speed.
Further, also comprise distribution box 25, described distribution box 25 is electrically connected with described motor 2 and sensor 23, distribution box 25 is also provided with the display window of display sensor 23 image data.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (14)
1. a clamp strip pressing device, is characterized in that:
The motor comprising frame, transmission mechanism and be arranged in described frame, described frame is provided with successively pressing mold frock, alignment frock and winding wheel;
Described pressing mold frock comprises the mould rack that is fixedly mounted in described frame and is rotatably mounted on upper die and lower die on described mould rack and rounded respectively, and the outer peripheral face of described upper die and lower die is identical with underside shape with the upper surface of supporting cassette tape respectively;
Described alignment frock comprises the alignment support be fixedly mounted in described frame and three that are arranged on the described alignment support alignment runners not on same straight line;
Described transmission mechanism comprises the gearbox driven by described motor, described gearbox drives upper die and lower die to rotate towards supporting cassette tape direction of feed with equal tangential velocity by gear drive, and described winding wheel drives rotation by described gearbox under the effect of chain-drive mechanism.
2. clamp strip pressing device according to claim 1, is characterized in that: be connected by V belt translation between described motor with described gearbox.
3. clamp strip pressing device according to claim 1, it is characterized in that: gear drive comprises and the driving gear of described output shaft of gear-box synchronous axial system and the upper mode-gear that engages with described driving gear, described upper mode-gear and described patrix rotating shaft synchronous axial system, described upper mode-gear be arranged on counterdie gears meshing in described counterdie rotating shaft, and described upper mode-gear and the gearratio of described lower mode-gear equal the ratio of counterdie and mode diameters.
4. clamp strip pressing device according to claim 3, is characterized in that: described upper die and lower die equal diameters, and the gearratio of described upper mode-gear and lower mode-gear is 1.
5. clamp strip pressing device according to claim 3, it is characterized in that: the outer peripheral face of described patrix is provided with projection circumferentially, described counterdie outer peripheral face is provided with the groove matched with described projection, described projection is equal with the width of supporting cassette tape with groove, and is provided with the mould tooth be meshed with the profile of tooth of supporting cassette tape in the middle part of described projection.
6. clamp strip pressing device according to claim 3, is characterized in that: described driving gear engages with the gear train be arranged on described alignment support, and described chain-drive mechanism is arranged between described gear train output shaft and described winding wheel rotating shaft.
7. clamp strip pressing device according to claim 6, is characterized in that: described winding wheel rotating shaft is also provided with clutch, and described clutch is between described winding wheel and sprocket wheel.
8. clamp strip pressing device according to claim 7, is characterized in that: the periphery wall of described winding wheel is provided with draw-in groove and friction plate.
9. the clamp strip pressing device according to any one of claim 1-8, it is characterized in that: the governor motion described mould rack being also provided with the spacing for regulating described patrix and counterdie, described governor motion comprises the slide rail be arranged on described mould rack and the slide block be sleeved in described patrix rotating shaft, described mould rack is also provided with the adjusting bolt acting on described upper end of slide block face.
10. the clamp strip pressing device according to any one of claim 1-8, is characterized in that: the frame be positioned on front side of described pressing mold frock is provided with charging aperture.
11. clamp strip pressing devices according to any one of claim 1-8, is characterized in that: described alignment runner comprises the alignment runner rotating shaft be fixedly mounted on described alignment support and the rolling bearing be sleeved in the rotating shaft of described alignment runner.
12. clamp strip pressing devices according to any one of claim 1-8, is characterized in that: also comprise counting device, described counting device comprise with the moving block of described patrix rotating shaft or counterdie rotating shaft synchronous axial system and with this moving block the corresponding sensor arranged.
13. clamp strip pressing devices according to claim 12, is characterized in that: described motor is buncher, and described frame is provided with the speed regulator be electrically connected with this buncher.
14. clamp strip pressing devices according to claim 13, is characterized in that: also comprise distribution box, described distribution box is connected with described motor and sensor electrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110460683.5A CN102554065B (en) | 2011-12-31 | 2011-12-31 | Clamp strip pressing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110460683.5A CN102554065B (en) | 2011-12-31 | 2011-12-31 | Clamp strip pressing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102554065A CN102554065A (en) | 2012-07-11 |
| CN102554065B true CN102554065B (en) | 2015-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110460683.5A Expired - Fee Related CN102554065B (en) | 2011-12-31 | 2011-12-31 | Clamp strip pressing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN102554065B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102776775B (en) * | 2012-07-25 | 2015-09-09 | 公安部上海消防研究所 | A kind of oral area clamping body of fire hose surfaces externally and internally turning device |
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| US4811581A (en) * | 1983-12-21 | 1989-03-14 | Hans Oetiker | Apparatus for preforming a substantially flat blank of an open clamp |
| WO1993004798A1 (en) * | 1991-09-06 | 1993-03-18 | Band-It-Idex, Inc. | Method of producing an improved one-piece band clamp |
| CN101307847A (en) * | 2008-06-26 | 2008-11-19 | 雪龙集团有限公司 | Compensating worm-drive teeth belt type clip production process |
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| Publication number | Publication date |
|---|---|
| CN102554065A (en) | 2012-07-11 |
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