CN2368625Y - Apparatus for manufacturing coiled pipe - Google Patents
Apparatus for manufacturing coiled pipe Download PDFInfo
- Publication number
- CN2368625Y CN2368625Y CN 98252373 CN98252373U CN2368625Y CN 2368625 Y CN2368625 Y CN 2368625Y CN 98252373 CN98252373 CN 98252373 CN 98252373 U CN98252373 U CN 98252373U CN 2368625 Y CN2368625 Y CN 2368625Y
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Abstract
The utility model relates to an apparatus for manufacturing spiral pipes, belonging to the technical field of the pipe forming and composed of a machine base, an electric motor, a gear box and at least one screw rolling head. The screw rolling head is arranged in a bearing base of the machine base and is composed of a spiral wheel disk, a main shaft and a screw rolling frame, and the spiral wheel disk is arranged on one end of the main shaft. The screw rolling frame is arranged on the end surface of the spiral wheel disk, and a screw rolling wheel is arranged on the screw rolling frame. A central through hole is arranged on the main shaft, and a pipe passes through the central through hole of the main shaft and enters the screw rolling head and rolled out of a spiral groove by the screw rolling wheel. The structure is simple. When a spiral pipe is processed, the pipe can not jump, and the work is safe. The utility model can process spiral pipes with any length.
Description
The utility model relates to a kind of spiral type pipe processing unit (plant), belongs to pipe forming technique field.
At present the method for production spiral type pipe is that processed pipe is installed on the lathe, makes the pipe rotation, revolves to roll wheel and be installed on the knife rest, revolve and roll wheel load to the pipe surface, then according to the pitch of setting along the moving axially of pipe, go out helicla flute in pipe surface roll compacting.Jia Gong spiral type pipe can not be oversize in this way, and revolving the radial pressure of rolling wheel in the processing can not be too big, otherwise pipe is bending, and in addition, the rotating speed of pipe can not be too high, otherwise pipe will seriously beat, can't normal process, also may have an accident.Thereby the efficient of this processing method is lower.
The purpose of this utility model is a kind of spiral type pipe processing unit (plant) of design, and the work in-process pipe does not rotate, and avoids pipe to beat, and improves working (machining) efficiency.
A kind of spiral type pipe processing unit (plant) that the utility model is designed mainly by support, motor, transmission case with have one at least and revolve dog and form, revolves in the bearing block that dog is installed in support.
The described dog that revolves is by the spinning roller dish, main shaft and at least three are revolved and are rolled frame and form, the spinning roller dish is fixed on an end of main shaft, central through hole is arranged on the main shaft, main shaft is installed in the bearing block on the support, revolve and roll frame by base, spinning roller is pitched and is revolved and rolls wheel or directive wheel composition, revolve and roll wheel or directive wheel is installed on the jaw axle of spinning roller fork, the fork arm of spinning roller fork is installed in the hole of base, and fix with nut, base evenly distributes and is installed on the end face of spinning roller dish, and make to revolve and roll wheel or directive wheel towards spinning roller disk center, revolving to roll and have at least one to be equipped with to revolve and to roll wheel in the frame, main shaft is by the transmission case transmission.
It is 3-6 that revolving of installing on the described spinning roller dish rolled frame.
Dress end-face helical dish in the described spinning roller dish, have equally distributed radial slot on the spinning roller dish end face, slide block is housed in the groove, have end-face helical on the slide block, and spiral with end-face helical and to close, on the spinning roller dish bevel pinion is housed, the end-face helical dish back side has the awl tooth, and with bevel pinion engagement, revolve and roll frame and install on the slide block.
Bevel pinion on the described spinning roller dish is equipped with coaxial cone pinion outward, on the shaft shoulder of spinning roller back-end disk large bevel gear is housed, and large bevel gear is meshed with cone pinion, has sprocket wheel on the large bevel gear, and sprocket wheel links to each other with adjusting motor on the support by chain.
In the described spinning roller dish edge cam dish is housed, have equally distributed radial slot on the spinning roller dish end face, slide block is housed in the groove, have push rod on the slide block, push rod combines with cam on the edge cam dish, revolve and roll frame and be installed on the slide block, be equipped with on the spinning roller back-end disk shaft shoulder and stir dish, and with bearing pin with the edge cam dish with stir the dish link, stir and have sprocket wheel on the dish, and link by the sprocket wheel in the controller of wheel bar and the rotation of control end face cam dish, controller is by support, axle, sprocket wheel, flywheel, clutch and cylinder are formed, axle is rack-mount, sprocket wheel, flywheel and clutch are installed on the axle, and the quiet end of cylinder and clutch links, and the moved end and the sprocket wheel of clutch link, flywheel links by chain and another double piston-rod cylinder, and controller is installed on the support.
In the spindle hole that spinning roller dish one end is arranged, fairlead is housed.
Have the guiding pinch roll in the both sides of revolving the dog and the main shaft other end.
Described guiding pinch roll passes through the decelerator transmission by motor.
When two or more being housed on support revolving dog, respectively revolve dog by the same axis transmission, the distance of respectively revolving between the dog can be along the frame guide rail adjustment.
Use the designed spiral type pipe processing unit (plant) processing spiral type pipe of the utility model, following advantage arranged:
1. pipe passes alignment of shafts through hole, is revolved revolving on the dog and rolls wheel and push down, and adds man-hour, and pipe does not rotate, and revolves dog and rotates, and revolving on it rolled wheel around the pipe rotation, goes out helicla flute in pipe surface roll compacting.Roll the relative pipe axis inclination certain angle of wheel (this angle is by the decision of helicla flute lift angle) owing to revolve, add man-hour, pipe is revolving under the axial thrust load effect of rolling wheel, revolve to roll in the wheel from trend and send to, thereby the spiral fluted of finishing on the whole pipe is processed.With this spiral type pipe processing unit (plant) processing spiral type pipe, pipe length is unrestricted, and pipe does not rotate, thereby pipe can not beated in the processing, and it is higher to revolve the dog rotating speed, thereby the working (machining) efficiency height, and processing safety is good.
2. revolve and a plurality of revolving can be installed on the dog roll wheel, can process multi-head spiral type pipe, lift one's head the more spiral type pipe of number when using two or more dogs that revolve simultaneously during cooperating, can processing.
3. after on the spinning roller dish end-face helical dish and slide block being housed, revolve and roll frame and be installed on the slide block, rotary end surface screw thread dish can be adjusted the slide position, revolves the position that revolving on the dog rolled wheel thereby adjust, and can process the pipe of different-diameter.
4. when the end-face helical dish that band umbrella tooth is housed in the spinning roller dish, cone pinion, large bevel gear, sprocket wheel and adjusting motor, can realize revolving and roll the feeding of frame when main shaft rotates and retreat.
When in the spinning roller dish cam guiding mechanism being housed, also can realizing revolving and roll the feeding of frame when main shaft rotates and retreat.
5. in the spindle hole of spinning roller Pan Chu, fairlead can be installed,, improve the force-bearing situation that revolves when rolling wheel roll compacting, improve processing stability the pipe support of leading.
6. guiding is housed during pinch roll when revolving the dog and the main shaft other end, can overcomes pipe, make processing stable because of the rotation that the processing discontinuity produces.
7. when guiding pinch roll during by electric-motor drive, it not only can overcome pipe because of the rotation that the processing discontinuity produces, and can also drag the longer pipe base, reduces and revolves the axial load of rolling wheel, makes processing stable.
Fig. 1 is a kind of spiral type pipe processing unit (plant) structural representation.
Fig. 2 is that the A of Fig. 1 is to view (amplification).
Fig. 3 is the B-B cutaway view of Fig. 2.
Fig. 4 is second kind of spiral type pipe processing unit (plant) structural representation.
Fig. 5 is that the C of Fig. 4 is to view (amplification).
Fig. 6 is the D-D cutaway view of Fig. 5.
Fig. 7 is the third spiral type pipe processing unit (plant) structural representation.
Fig. 8 is that the E of Fig. 7 is to view (amplification).
Fig. 9 is the F-F cutaway view of Fig. 8.
Figure 10 is the 4th a kind of spiral type pipe processing unit (plant) structural representation.
Figure 11 is that the G of Figure 10 is to view (amplification).
Figure 12 is the J-J cutaway view of Figure 11.
Figure 13 is the H-H cutaway view of Figure 10.
Below in conjunction with drawings and Examples the utility model is elaborated.
It is shown in Figure 3 that the structural representation of the described spiral type pipe processing unit (plant) of present embodiment sees that Fig. 1 arrives.
The spiral type pipe processing unit (plant) revolves dog 4 by support 1, motor 2, transmission case 3 and one to be formed, and motor 2 is installed on the transmission case 3, and transmission case 3 adopts gear drive or worm and gear transmissions, has speed changing function, and transmission case 3 is installed in the support 1.Revolve dog 4 by spinning roller dish 5, main shaft 6 and three are revolved and are rolled frame 7 and form, spinning roller dish 5 is installed in an end of main shaft 6, there is through hole at main shaft 6 centers, main shaft 6 is installed on the bearing block 8 of support 1, sprocket wheel 9 is arranged on the main shaft 6, sprocket wheel 9 links by chain 10 and transmission case 3, revolve and roll frame 7 by base 11, spinning roller fork 12 rolls wheel 13 compositions with revolving, revolve and roll on the jaw axle 14 that wheel 13 is installed in spinning roller fork 12, the fork arm 15 of spinning roller fork 12 is installed in the base 11, and is fixed on the base 11 with nut 16, and three bases 11 are distributed on the end face of spinning roller dish 5 by trisection, and be fixed by bolts on the spinning roller dish 5, three revolve roll the wheel 13 centers towards spinning roller dish 5.
During the work of spiral type pipe processing unit (plant), at first according to the diameter of processed pipe 17, adjustment is revolved and is rolled the position of frame 7 on spinning roller dish 5, making three, to revolve the drafts that rolls frame 7 relative pipes 17 identical, revolve according to the helical angle adjustment of spiral type pipe then and roll the wheel 13 and the angle of pipe 17, make that to revolve the corner that rolls wheel 13 identical with the helical angle of spiral type pipe.After above-mentioned adjustment work is finished, connect power supply for motor 2, motor 2 drives by transmission case 3 and revolves dog 4 rotations, with pipe 17 from the centre bore of main shaft 6, send into revolve roll the wheel 13 times, revolve dog 4 around pipe 17 rotations, revolving revolving on the dog 4 rolls wheel and 13 is pressed into pipe 17, revolve roll the wheel 13 itself along pipe 17 outer surface rotations, rolled three helicla flutes of pipe 17 outer surfaces, revolving under the axial thrust load effect of rolling wheel 13, pipe 17 is drawn into gradually to revolve and rolls wheel 13 times, finishes the helicla flute processing of whole pipe 17.In process, pipe 17 does not rotate, and only makes horizontal feed motion, and when therefore this spiral type pipe processing unit (plant) was worked, pipe 17 can not beated, and has guaranteed the safety and stability of processing, and can process the spiral type pipe of any length.
It is shown in Figure 6 that the structural representation of the described spiral type pipe processing unit (plant) of present embodiment sees that Fig. 4 arrives.
The structure of the described spiral type pipe processing unit (plant) of present embodiment and embodiment 1 are described basic identical, difference is that end-face helical dish 18 is housed in spinning roller dish 5, the end face of spinning roller dish 5 is evenly distributed with four T-slots, slide block 19 is housed in the T-slot, have end-face helical on the slide block 19, end-face helical on end-face helical on the slide block 19 and the end-face helical dish 18 screws, and revolves to roll frame 7 and be installed on the slide block 19.Bevel pinion 20 is housed on the periphery of spinning roller dish 5, the awl tooth is arranged on the back side of end-face helical dish 18, be meshed with bevel pinion 20, on the bevel pinion 20 rotating shaft is arranged, rotating shaft can rotate bevel pinion 20, and bevel pinion 20 drives end-face helical dish 5 and rotates.End-face helical on the end-face helical dish 5 drives slide block 19 and does motion up or down in T-slot, is installed in revolving on the slide block 19 and rolls frame 7 and move up and down thereby make, and adjusts to revolve to roll to revolve on the frame 7 and rolls the drafts of taking turns 13 relative pipes 17.
Another difference is to have four to revolve and roll frame 7 on the spinning roller dish 5, wherein has two relative revolving to roll to be equipped with on the frame 7 to revolve to roll wheel 13, and two other is relative revolves to roll directive wheel 21 is housed on the frame 7.
The operation principle of the described spiral type pipe processing unit (plant) of present embodiment and embodiment 1 are described basic identical, and difference one is to revolve end-face helical dish 18 parts such as grade are arranged on the dog 4, can adjust easily and revolve the position of rolling frame 7.The 2nd, there are two to revolve and roll wheel 13 on the spinning roller dish 5, on pipe 17, shut out two helicla flutes, two other directive wheel 21 plays the supplemental support effect, makes pipe 17 work in-processes stable.
It is shown in Figure 9 that the structural representation of the described spiral type pipe processing unit (plant) of present embodiment sees that Fig. 7 arrives.
The structure of the described spiral type pipe processing unit (plant) of present embodiment and embodiment's 2 is described basic identical, difference is that the outside of the bevel pinion 20 on spinning roller dish 5 has another cone pinion 22 coaxial with it, on the shaft shoulder of the rear end of spinning roller dish 5, be with large bevel gear 23, large bevel gear 23 is meshed with cone pinion 22, large bevel gear 23 can rotate on the shaft shoulder of the rear end of spinning roller dish 5, and sprocket wheel 24 is fixed on the large bevel gear 23.In support 1, be equipped with and regulate motor 25 and decelerator 26, sprocket wheel 27 is arranged on it, link by chain 28 and sprocket wheel 24.
Another difference is that fairlead 29 is housed in the centre bore of spinning roller dish 5.
Another difference is that guiding pinch roll 30 is housed in the outside of revolving dog 4 and main shaft 6, and guiding pinch roll 30 is installed on the support 31. Optoelectronic switch 32 and 33 respectively are housed on the front and back support 31.
Present embodiment described spiral type pipe processing unit (plant) operation principle and embodiment 2 are described basic identical, and difference one is owing to have parts such as large bevel gear 23, adjusting motor 25, when can be implemented in main shaft 6 rotations, adjusts revolving the position of rolling frame 7.Regulating motor 25 rotating speeds can adjust, make the large bevel gear 23 that drives by chain 28, sprocket wheel 24 revolve leading, the synchronous or hysteresis of rotating speed of dog 4 relatively, to revolve the rotating speed of dog 4 relatively leading or when lagging behind when the rotating speed of large bevel gear 23, be equivalent to large bevel gear 23 and revolve dog 4 forward or reverse relatively, can drive end-face helical dish 18 by cone pinion 22 rotates forward or backwards, make the slide block 19 that screws mutually with it do motion up or down, thereby make and revolve the position of rolling frame 7 and obtain adjusting, realized revolving and rolled the adjustment of frame 7 in process.The 2nd, the fairlead 29 in the spinning roller dish 5 can position processed pipe 17, keeps the stable of pipe 17 work in-processes.The 3rd, guiding pinch roll 30 is pressed on the pipe 17, makes it be difficult for rotating, and overcomes to revolve and rolls the additional revolving force that wheel 13 brings pipe 17.The 4th, utilize optoelectronic switch 32 to predict the head end or the tail end of pipe 17, when first optoelectronic switch 32 of pipe head end process, revolve and roll frame 7 and depress automatically by regulating motor 25, on pipe 17, shut out thread groove, when pipe 17 tail ends when second optoelectronic switch 33, revolve and roll frame 7 and return automatically by regulating motor 25.
It is shown in Figure 13 that the structural representation of the described spiral type pipe processing unit (plant) of present embodiment sees that Figure 10 arrives.
The structure of the described spiral type pipe processing unit (plant) of present embodiment and embodiment 3 are described basic identical, difference one is to have two to revolve dog 4 on the support 1 on the spiral type pipe processing unit (plant), their structures are identical, have nut and screw rod and handwheel 34 on the bearing block that revolves dog 48 that install in the left side, shake handwheel 34, bearing block 8 front and back on support 1 are moved by nut, screw rod.Two revolve dog 4 by a power transmission shaft motion on the transmission case 3.The 2nd, edge cam dish 35 is housed in spinning roller dish 5, three cam paths 36 are arranged on it, have push rod 37 on the slide block 19, push rod 37 is contained in the cam path 36, when cam disc 35 rotates, by cam path 36 and push rod 37, can drive slide block 19 and move up and down, on the shaft shoulder of the rear end of spinning roller dish 5, be with and stir dish 38,3 bearing pins 39 are arranged on it, the mounting hole 40 that bearing pin 39 passes on the spinning roller dish 5 links with cam disc 35, stirs on the dish 38 sprocket wheel 24 is housed.Controller 41 is housed in support 1, controller 41 is made up of support 42, axle 43, sprocket wheel 44, flywheel 45, clutch 46, cylinder 47 and 48, used flywheel 47 is identical with the flywheel of bicycle, axle 48 is installed on the support 42, sprocket wheel 44, flywheel 45 and clutch 46 are installed on the axle 43, the quiet end of the piston rod of cylinder 47 and clutch 46 links, and the moved end of clutch and sprocket wheel 44 link, and sprocket wheel 44 links by chain 28 and sprocket wheel 24.Cylinder 48 is the double piston-rod cylinder, and piston rod two ends and chain 49 join, and chain 49 links with sprocket wheel 50, flywheel 45.The 3rd, guiding pinch roll 30 is by the rotation of motor (not drawing among the figure) band.
The operation principle of the described spiral type pipe processing unit (plant) of present embodiment and embodiment 3 are described basic identical, difference one is because this device has two to revolve dog 4, spiral type pipe that can rolling more bull number when two revolve dog 4 and cooperate, in the present embodiment, each revolve have on the dog 4 three revolve roll the wheel 13, two revolve dog 4 and can shut out six spiral type pipe, and two spiral fluted angles of revolving between the dog 4 cooperate the position of revolving dog 4 by the mobile left side to adjust.The 2nd, revolve the regulative mode that rolls frame 7 and be different from embodiment 3 described modes, be installed in the sprocket wheel 24 that revolves on the dog 4 generally speaking and drive sprocket wheel 44 rotations by chain 28, when needs revolve when rolling frame 7 and depressing, the quiet end of the piston rod promotion clutch 46 of cylinder 47 combines with the clutch moved end on the sprocket wheel 44, make sprocket wheel 44 brakings, thereby sprocket wheel 24 is stopped operating, and make and stir dish and 38 stop operating, and then cam disc 35 is stopped operating, this moment, main shaft 6 still rotated, and the slide block 19 on the spinning roller dish 5 is rotated, and the push rod 37 on the slide block 19 moves along cam path 36, slide block 19 is moved downward, thereby make revolving on the slide block 19 roll frame 7 and press to pipe 17, when revolve roll frame 7 and be pressed onto the precalculated position after, the piston rod of cylinder 47 is return, let the clutch be slipped 46, in said process, flywheel 45 is always at slipping state.When needs revolve when rolling frame 7 and returning, stop the rotation of main shaft 6 earlier, the piston rod of cylinder 48 travels forward then, drives flywheels 45 by chain 49 and rotates.Flywheel 45 drives sprocket wheels 44 counter-rotatings by axle 43, and by chain 28, sprocket wheel 24, stir dish 38 and drive cam discs 35 counter-rotatings, slide block 19 is return, roll frame 7 and return thereby make to revolve, when revolve roll frame 7 and return to desired location after, cylinder 48 moves backward, returns to original position.The 3rd, guiding pinch roll 30 is by the motor drives rotation, and guiding pinch roll 30 can initiatively roll wheel 13 feed pipe 17 to revolving, alleviate and revolve the axial load of rolling wheel 13, helps the processing of long spiral type pipe of length.
Claims (10)
1. spiral type pipe processing unit (plant) is characterized in that: mainly by support, motor, transmission case with have one at least and revolve dog and form, revolve in the bearing block that dog is installed in support.
2. according to the described spiral type pipe processing unit (plant) of claim 1, it is characterized in that: the described dog that revolves is by the spinning roller dish, main shaft and at least three are revolved and are rolled frame and form, the spinning roller dish is fixed on an end of main shaft, central through hole is arranged on the main shaft, main shaft is installed in the bearing block on the support, revolve and roll frame by base, spinning roller is pitched and is revolved and rolls wheel or directive wheel composition, revolve and roll wheel or directive wheel is installed on the jaw axle of spinning roller fork, the fork arm of spinning roller fork is installed in the hole of base, and fix with nut, base evenly distributes and is installed on the end face of spinning roller dish, and makes to revolve and roll wheel or directive wheel towards spinning roller disk center, revolve to roll and have at least one to be equipped with to revolve and to roll wheel in the frame, main shaft is by the transmission case transmission.
3. according to the described spiral type pipe processing unit (plant) of claim 2, it is characterized in that: it is 3-6 that revolving of installing on the spinning roller dish rolled frame.
4. according to the described spiral type pipe processing unit (plant) of claim 2, it is characterized in that: the end-face helical dish is housed in the spinning roller dish, have equally distributed radial slot on the spinning roller dish end face, slide block is housed in the groove, has end-face helical on the slide block, and spiral with end-face helical and to close, on the spinning roller dish bevel pinion is housed, the end-face helical dish back side has the awl tooth, and meshes with bevel pinion, revolves to roll on the frame installation slide block.
5. according to the described spiral type pipe processing unit (plant) of claim 4, it is characterized in that: the bevel pinion on the spinning roller dish is equipped with coaxial cone pinion outward, on the shaft shoulder of spinning roller back-end disk large bevel gear is housed, large bevel gear is meshed with cone pinion, have sprocket wheel on the large bevel gear, sprocket wheel links to each other with adjusting motor on the support by chain.
6. according to the described spiral type pipe processing unit (plant) of claim 2, it is characterized in that: the edge cam dish is housed in the spinning roller dish, have equally distributed radial slot on the spinning roller dish end face, slide block is housed in the groove, have push rod on the slide block, push rod combines with cam on the edge cam dish, revolve and roll frame and be installed on the slide block, be equipped with on the spinning roller back-end disk shaft shoulder and stir dish, and with bearing pin with the edge cam dish with stir the dish link, stir and have sprocket wheel on the dish, and link by the sprocket wheel in the controller of wheel bar and control end face cam dish rotation, controller is by support, axle, sprocket wheel, flywheel, clutch and cylinder are formed, and axle is rack-mount, sprocket wheel, flywheel and clutch are installed on the axle, the quiet end of cylinder and clutch links, the moved end and the sprocket wheel of clutch link, and flywheel links by chain and another double piston-rod cylinder, and controller is installed on the support.
7. according to the described spiral type pipe processing unit (plant) of claim 2, it is characterized in that: in the spindle hole that spinning roller dish one end is arranged, fairlead is housed.
8. according to the described spiral type pipe processing unit (plant) of claim 1, it is characterized in that: have the guiding pinch roll in the both sides of revolving the dog and the main shaft other end.
9. according to the described spiral type pipe processing unit (plant) of claim 7, it is characterized in that: the guiding pinch roll passes through the decelerator transmission by motor.
10. according to the described spiral type pipe processing unit (plant) of claim 1, it is characterized in that: when two or more being housed on support revolving dog, respectively revolve dog by the same axis transmission, the distance of respectively revolving between the dog can be along the frame guide rail adjustment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98252373 CN2368625Y (en) | 1998-12-30 | 1998-12-30 | Apparatus for manufacturing coiled pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98252373 CN2368625Y (en) | 1998-12-30 | 1998-12-30 | Apparatus for manufacturing coiled pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2368625Y true CN2368625Y (en) | 2000-03-15 |
Family
ID=33996073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98252373 Expired - Lifetime CN2368625Y (en) | 1998-12-30 | 1998-12-30 | Apparatus for manufacturing coiled pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2368625Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1322262C (en) * | 2004-03-04 | 2007-06-20 | 程宇鸣 | Thin stainless steel pipe with engaging formed screw connet and its manufacture method |
| CN101912908A (en) * | 2010-07-30 | 2010-12-15 | 溧阳市四方不锈钢制品有限公司 | Thread groove tube rolling machine |
| CN102513424A (en) * | 2011-12-29 | 2012-06-27 | 苏州奥智机电设备有限公司 | Multi-layer mosquito incense disc-shaped non-ferrous metal pipe forming equipment |
| CN107127281A (en) * | 2017-06-06 | 2017-09-05 | 佛山市顺德区莱雄机械设备有限公司 | The long pipe threading machine of multi-head numerical control |
| CN108906947A (en) * | 2018-07-31 | 2018-11-30 | 廖维东 | The method of helicla flute is opened up in pipe fitting outside wall surface |
-
1998
- 1998-12-30 CN CN 98252373 patent/CN2368625Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1322262C (en) * | 2004-03-04 | 2007-06-20 | 程宇鸣 | Thin stainless steel pipe with engaging formed screw connet and its manufacture method |
| CN101912908A (en) * | 2010-07-30 | 2010-12-15 | 溧阳市四方不锈钢制品有限公司 | Thread groove tube rolling machine |
| CN102513424A (en) * | 2011-12-29 | 2012-06-27 | 苏州奥智机电设备有限公司 | Multi-layer mosquito incense disc-shaped non-ferrous metal pipe forming equipment |
| CN107127281A (en) * | 2017-06-06 | 2017-09-05 | 佛山市顺德区莱雄机械设备有限公司 | The long pipe threading machine of multi-head numerical control |
| CN108906947A (en) * | 2018-07-31 | 2018-11-30 | 廖维东 | The method of helicla flute is opened up in pipe fitting outside wall surface |
| CN108906947B (en) * | 2018-07-31 | 2019-08-20 | 廖维东 | The method of helicla flute is opened up in pipe fitting outside wall surface |
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| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |