CN203792712U - PVC (Polyvinyl Chloride) large-caliber pipe-expanding machine - Google Patents
PVC (Polyvinyl Chloride) large-caliber pipe-expanding machine Download PDFInfo
- Publication number
- CN203792712U CN203792712U CN201320880290.4U CN201320880290U CN203792712U CN 203792712 U CN203792712 U CN 203792712U CN 201320880290 U CN201320880290 U CN 201320880290U CN 203792712 U CN203792712 U CN 203792712U
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- Prior art keywords
- fixture block
- lifting
- enlarging
- tubing
- oil cylinder
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Abstract
The utility model discloses a PVC (Polyvinyl Chloride) large-caliber pipe-expanding machine which comprises a stand, wherein the stand is provided with a bracket lifting mechanism, a clamping and sealing device, a pipe-expanding device, a conveying device and a heating device; the bracket lifting mechanism is used for lifting a pipe, the clamping and sealing device is used for clamping and sealing the pipe, the conveying device is used for conveying the pipe into a processing area, and the heating device and the pipe-expanding device are positioned at a same side. The PVC large-caliber pipe-expanding machine disclosed by the utility model can be used for expanding the large-caliber pipes including a1000 millimeters PVC pipe and has a good expanding effect.
Description
Technical field
The utility model relates to plastic pipe forming equipment, particularly a kind of PVC heavy caliber pipe-expanding machine.
Background technology
At present, domestic economy development is swift and violent, the development rapidly in each city, and carrying out in a large number of capital construction facility and municipal works, imperative to Large Underground pipe laying; Because need to use pipe-expanding machine to carry out enlarging before the connection of tubing, so, domestic very large to the demand of large-scale pipe-expanding machine.But, due to problems such as tubing enlarging difficulty are very large and production equipment is huge; Domestic large-scale plastics solid wall pipe material pipe-expanding machine is substantially all to produce 630 specifications at present, also has small part to produce 800 specifications; But, more and more higher along with demand, the solid wall pipe material pipe-expanding machine of 630-800 specifications can not meet Production requirement; Therefore, in the urgent need to producing the pipe-expanding machine of solid wall pipe material of more bigbore 1000 specifications.
Utility model content
The purpose of this utility model is to solve the problem that prior art lacks large-scale bore pipe-expanding machine, provides one more bigbore PVC pipe-expanding machine.
To achieve these goals, the technical scheme of employing is as follows:
A kind of PVC heavy caliber pipe-expanding machine, comprise frame, described frame be provided with for the bracket elevating mechanism of lifting tubing, for clamp and the clipp-seal device of sealed tube, expanding device, for tubing being delivered into conveying device and the heater of machining area, described heater and expanding device are positioned at the same side.
Preferably, described bracket elevating mechanism comprises bracket, one or more drive links, one or more elevating screws, one or more lifting nuts, one or more lifting TY reductors, one or more adapter sleeves, lifting micro-reducer, motor flange cover and lifting motor, described elevating screw is threaded with lifting nut and is corresponding one by one, described lifting nut is connected with bracket contact, described elevating screw connects with lifting TY reductor and is corresponding one by one, described adjacent two lifting TY reductors connect by drive link and junction is provided with adapter sleeve, described lifting motor is connected with lifting micro-reducer, the lifting TY reductor that described lifting micro-reducer is adjacent by motor flange cover is connected.
The bracket elevating mechanism effect that the utility model adopts is the height by adjusting bracket, makes the central axis of tubing consistent with the central axis of heating cabinet and expanding device, improves machining accuracy.
Further, described elevating screw and lifting nut are 4 or 6.
Preferably, described clipp-seal device comprises clamping device and sealing device, described clamping device travel switch, upper clamping cylinder, upper fixture block holder, guide pillar, lower fixture block holder, lower clamping cylinder, large fixture block under one, a upper large fixture block, multiple little fixture blocks, with multiple lower little fixture blocks, above-mentioned fixture block is semicircle, the seat that is fixedly clamped under described is located in frame, described upper clamping cylinder is arranged on and is fixedly clamped on seat, lower clamping cylinder is arranged on lower fixture block holder, the seat that is fixedly clamped on described has been fixedly connected with large fixture block, described upper large fixture block has connected multiple little fixture blocks successively, the seat that is fixedly clamped under described has been fixedly connected with time large fixture block, described lower large fixture block has connected multiple lower little fixture blocks successively, described is upper, lower fixture block holder connects slip by guide pillar, described travel switch is located at and is fixedly clamped on seat, described sealing device comprises envelope pressure fixture block support (link position), upper envelope gas flange oil cylinder, and described upper envelope presses fixture block support to be arranged on expanding device, and described upper envelope gas flange oil cylinder is arranged on envelope and presses on fixture block support.
The moving range of the upper and lower large fixture block of clamping device of the present utility model on guide pillar can clamp greatly 1000PVC tubing, and coordinate from the upper and lower clip piece diminishing to axle center gradually can be by the position of the upper and lower fixture block of control adjustment of clamping cylinder to adapt to different calibers.
Preferably, described expanding device comprises enlarging car, enlarging car advance and retreat oil cylinder, enlarging moulding oil cylinder and flaring die, described flaring die is located on enlarging car, described enlarging car is by enlarging car advance and retreat hydraulic oil cylinder driving, described enlarging moulding oil cylinder is located at flaring die top, and flaring die is by enlarging moulding hydraulic oil cylinder driving.
Further, described flaring die is the tapered flaring die in end.
Preferably, described expanding device is also provided with a pressue device and exhaust apparatus, described pressue device comprises air chamber, cooling blower, strong cooling air port, and described cooling blower is connected with strong cooling air port, and described air chamber is by detachable block connection enlarging car; Described exhaust apparatus is by a vavuum pump control.
Cooling blower in the utility model is also Middle pressure draught fan, can cooling conveying suppress gas, and strong cooling air port also can claim high pressure air port.
Preferably, described conveying device comprises tubing conveying mechanism and transverse moving mechanism, described tubing conveying mechanism comprises that transfer gantry, at least two groups comprise the conveying mechanism of carrying front-wheel, carrying trailing wheel and conveying motor, described transfer gantry is provided with to be carried front-wheel and carries trailing wheel, described conveying front-wheel is connected conveying mechanism by belt with carrying motor formation triangle with conveying trailing wheel, and described conveying mechanism is located at enlarging car one side; Described transverse moving mechanism comprises underframe, transverse shifting frame, hoist cylinder, cross slide way, horizontal linear bearing, transverse shifting oil cylinder, described underframe is arranged on bracket and underframe is provided with transverse shifting frame, described transverse shifting frame is connected with cross slide way by horizontal linear bearing, and the transverse shifting of described transverse shifting frame and longitudinally lifting are driven by transverse shifting oil cylinder and hoist cylinder respectively.
The utility model tubing conveying mechanism adopts carries front-wheel to be connected and to be carried the stationarity that can not only carry rapidly tubing can also ensure to carry tubing like this by belt and conveying motor formation triangle with carrying trailing wheel, makes tubing can not produce and beat.
Tubing conveying mechanism in the utility model conveying device enters machining area for delivery of tubing, and transverse moving mechanism is for sending heating furnace to tubing.
Further, be also provided with tube device in described conveying device, described tube device is located on transverse shifting frame, comprises at least 2 tube crawler belts and tube motor, the V-shaped setting of staggering of described tube crawler belt, and driven by tube motor.
Preferably, described heater comprises heating cabinet, and described heating cabinet outside is provided with hot baffle, in described heating cabinet, is provided with heating tube, and heating tube is provided with heating core print seat, and described heating tube has connected water ring; Described heater also be connected bits blower, described bits blower comprises blower and blows bits blower fan, the described bits blower fan that blows connects airduct by blower joint; Described heater one side is also provided with ejector sleeve device, and described ejector sleeve device is driven by Hydraulic Station.
The utility model is considered that the pipe bits that produce in tubing enlarging process can blow away again and is placed on heating and time can affects tubing surfaces externally and internally quality, is therefore provided with bits blower, has ensured clean after tubing processing.
The beneficial effect that the utility model compared with prior art has: because the diameter of large its enlarging tubing of the adjusting range of the upper and lower large fixture block of the utility model clamping device can reach 1000mm, and can carry reposefully rapidly, ensure that tubing accurately puts in place; Also being provided with at pipe-expanding machine the fines that bits blower can ensure that tubing stays after cutting cleans out; Clamp reliably and expanding device accurate positioning; The running of high-pressure blast and pumped vacuum systems, ensures thick-wall tube accurate forming.
Brief description of the drawings
Fig. 1 is front view of the present utility model;
Fig. 2 is top view of the present utility model;
Fig. 3 is the utility model conveying device front view;
Fig. 4 is the utility model conveying device side view;
Fig. 5 is the utility model bracket lift composition;
Fig. 6 is the utility model transverse shifting frame figure;
Fig. 7 is the utility model Chui Xie mechanism front view;
Fig. 8 is that the utility model blows bits mechanism side view;
Fig. 9 is the utility model Chui Xie mechanism top view;
Figure 10 is the utility model heating cabinet figure;
Figure 11 is the utility model tube installation drawing;
Figure 12 is the partial structurtes schematic diagram of the utility model tube device;
Figure 13 is the tube caterpillar belt structure schematic diagram of the utility model tube device;
Figure 14 is the front view of the utility model clamping device;
Figure 15 is the top view of the utility model clamping device.
In figure: 1, bracket elevating mechanism; 2, transverse moving mechanism; 3, bracket; 4, tubing; 5, bracket hoist cylinder; 6, clamping device; 7, expanding device; 8, heater; 9, tubing conveying mechanism; 10, cooling blower; 11, enlarging moulding oil cylinder; 12, strong cooling air port; 13, enlarging car advance and retreat oil cylinder; 14, tube device; 15, ejector sleeve device; 16, heating cabinet; 17, flaring die; 18, Hydraulic Station; 19, vavuum pump; 20, conveying mechanism; 21, conveying mechanism side view; 22, carry frame; 23, carry front-wheel; 24, carry trailing wheel; 25, lifting motor; 26, tilting trestle feet; 27, lifting TY reductor; 28, bracket feet; 29, drive link; 30, adapter sleeve; 31, lifting nut; 32, elevating screw; 33, motor flange dish; 34, lifting micro-reducer; 35, underframe; 36. transverse shifting oil cylinders; 37, transverse shifting frame; 38, hoist cylinder; 39, cross slide way; 40, horizontal linear bearing; 41, blower syndeton; 42, frame; 43, blowing direction; 44, the tubing direction of motion; 45, blow bits blower fan; 46, hot baffle; 47, casing; 48, heating tube; 49, heating core print seat; 50, blower; 51, blast connection; 52, water ring; 53, tube motor; 54, enlarging car; 55, tube crawler belt; 56, lower large fixture block; 57, lower little fixture block; 58, travel switch; 59, upper clamping cylinder; 60, upper fixture block holder; 61, upper large fixture block; 62, upper little fixture block; 63, upper envelope gas flanged plate; 64, lower gas sealing flanged plate; 65, guide pillar; 66, lower fixture block holder; 67, lower clamping cylinder; 68, air chamber; 69, exhaust apparatus; 70, upper envelope is pressed fixture block support; 71, upper envelope gas flange oil cylinder.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
As illustrated in fig. 1 and 2, for a kind of PVC heavy caliber pipe-expanding machine of the present embodiment, comprise frame 42, described frame 42 is provided with for the bracket elevating mechanism 1 of lifting tubing, clamping device 6 and sealing device, expanding device 7, for tubing being delivered into conveying device, heater 8, tube device 14, ejector sleeve device 15, exhaust apparatus and the bits blower of machining area, and wherein said heater 8 and expanding device 7 are positioned at the same side.
As shown in Fig. 3, Fig. 4 and Fig. 5, be the present embodiment, comprise tubing conveying mechanism and the bracket elevating mechanism of conveying device.Comprise transfer gantry 22 comprising tubing conveying mechanism, described transfer gantry 22 is provided with to be carried front-wheel 23 and carries trailing wheel 24, described conveying front-wheel 23 is connected conveying mechanism 20 by belt with carrying motor formation triangle with conveying trailing wheel 24, and described conveying mechanism 20 is located at enlarging car one side.Bracket elevating mechanism comprises lifting motor 25, tilting trestle feet 26, lifting TY reductor 27, bracket feet 28, drive link 29, adapter sleeve 30, lifting nut 31, elevating screw 32, bracket 33, motor flange dish 34, lifting micro-reducer 35, described elevating screw 32 is threaded with lifting nut 31, described lifting nut 31 is connected with bracket 3 contacts, described elevating screw connects with lifting TY reductor 27 and is corresponding one by one, described adjacent two lifting TY reductors connect by drive link 29 and junction is provided with adapter sleeve 30, described lifting motor 25 is connected with lifting micro-reducer 34, described lifting micro-reducer 34 overlaps the 33 lifting TY reductors that are adjacent by motor flange and is connected, described lifting motor 25 is arranged at bracket 3 belows.
Its operation principle is: in the time that tubing 4 enters tubing conveying mechanism, be arranged on optoelectronic switch on pipe-expanding machine and tubing 4 detected; The conveying electric motor starting of tubing conveying mechanism, conveying mechanism 20 turning handle tubing 4 are transported on bracket.Bracket elevating mechanism 1 is provided with lifting motor 25, makes the lifting of bracket 3 more convenient; In the time changing the specification of enlarging tubing 4, must adjust the height of bracket 3, make the central axis of tubing 4 consistent with the central axis of heating cabinet 16 and expanding device; Bracket elevating mechanism 1 is mainly driven by a motor, after reductor slows down, pass through again drive link transmission, four elevating screws 32 at driven bracket 3 four angles, bottom rotate simultaneously, by the screw pair effect of elevating screw 32 and lifting nut 31, make rotatablely moving of elevating screw 32 be converted into the elevating movement of bracket 3 again.
As shown in Figure 6, for the present embodiment, transverse moving mechanism comprises underframe 35, transverse shifting frame 37, hoist cylinder 38, cross slide way 39, horizontal linear bearing 40, transverse shifting oil cylinder 36, described underframe 35 is arranged on bracket 3 and underframe 35 is provided with transverse shifting frame 37, described transverse shifting frame 37 is connected with cross slide way 39 by horizontal linear bearing 40, and the transverse shifting of described transverse shifting frame 37 and longitudinally lifting are driven by transverse shifting oil cylinder 36 and hoist cylinder 38 respectively.
Its operation principle: transverse shifting frame 37 moves on to next station tubing 4 from a upper station, rises and holds tubing 4, the next station of transverse shifting, and transverse shifting is got back to home position, and its motion track is the rectangle of a sealing.
As shown in Figure 7, Figure 8 and Figure 9, be the present embodiment, known at heating blower 41 blowing directions 43 when tubing from blower syndeton 41, tubing will enter the tubing direction of motion 44 of heating cabinet 16.
As shown in figure 10, be the present embodiment, heater comprises heating cabinet 16, described heating cabinet 16 outsides are for casing 47 and be provided with hot baffle 46, in described heating cabinet 16, be provided with heating tube 48, heating tube 48 is provided with heating core print seat 49, and described heating tube 48 has connected water ring 52; Described heater also be connected bits blower, described bits blower comprises airduct 50 and blows bits blower fan 45, the described bits blower fan 43 that blows connects airduct 50 by blast connection 51.
Its operation principle: when tubing 4 is delivered to and arranged behind location by tubing conveying mechanism, transverse shifting frame 37 is transplanted on heating cabinet 16 by tubing 4 and heats, in handover process, blowing bits blower fan 43 starts, wind blows out through airduct 50, the mouth of pipe around pipe bits of the overwhelming majority can blow away, and affects tubing 4 surfaces externally and internally quality while preventing from heating.
As shown in Figure 11, Figure 12 and Figure 13, be the present embodiment, comprise that tube device comprises tube crawler belt 55, tube motor 53, the V-shaped setting of staggering of described tube crawler belt 55, and driven by tube motor 53.
Its operation principle: the effect of tube device is in the process of heating tubing 4, constantly rotates tubing 4, makes to be heated on tubing 4 circumferencial directions more even.Tube wants the rotating cycle to carry out, and is in order to prevent that one-directional rotation from having spiral power to cause axial displacement, affects tubing 4 heated lengths.
As described in Figure 14 and Figure 15, for the present embodiment, described clipp-seal device comprises clamping device and sealing device, described clamping device travel switch 58, upper clamping cylinder 59, upper fixture block holder 60, guide pillar 65, lower fixture block holder 66, lower clamping cylinder 67, large fixture block 56 under one, a upper large fixture block 61, multiple upper clip pieces 62, with multiple lower clip pieces 57, above-mentioned fixture block is semicircle, the seat 66 that is fixedly clamped under described is located in frame 42, described upper clamping cylinder 59 is arranged on and is fixedly clamped on seat 60, lower clamping cylinder 67 is arranged on lower fixture block holder 66, the seat that is fixedly clamped on described is fixed 60 and has been connected large fixture block 61, described upper large fixture block 61 has connected multiple upper clip pieces 62 successively, the seat 66 that is fixedly clamped under described has been fixedly connected with time large fixture block 56, described lower large fixture block 56 has connected multiple lower clip pieces 57 successively, described is upper, lower fixture block holder is connected and is slided by guide pillar 65, described travel switch 58 is located at the seat upper 60 that is fixedly clamped, described sealing device comprises envelope pressure fixture block support 63, upper envelope gas flange oil cylinder 64, and described upper envelope presses fixture block support 63 to be arranged on expanding device 7, and described upper envelope gas flange oil cylinder 64 is arranged on envelope and presses on fixture block support 63.
Operation principle of the present utility model is: the tubing of producing from pipe production line enters pipe-expanding machine, is transported to fast on bracket 3, then tubing 4 is moved on on the station of heater 8 by transverse moving mechanism 2 by tubing conveying mechanism; Then, heating cabinet 16 moves forward, and of tubing 4 is placed in heating cabinet 16 and heats.After certain hour, heating cabinet 16 retreats by ejector sleeve device 15, and and then transverse moving mechanism 2 laterally moves on to tubing 4 on expanding device 7.Expanding device 7 starts action, and enlarging car advance and retreat oil cylinder 13 moves, before expanding device 7 is pushed to, until inspection pipe optoelectronic switch when 4 mouthfuls of tubing detected, stops action; Upper clamping cylinder 59 and lower clamping cylinder 67 move, and promote large fixture block and upper and lower clip piece clamping tubing 4 up and down; Enlarging moulding oil cylinder 11 moves, and drives flaring die 17 to inject on the tubing 4 of softened by baking, in the middle of enlarging is carried out; Upper envelope gas flange oil cylinder 74 moves, and at the upper and lower of tubing 4, air chamber 68 is sealed to gear gas; Enlarging slide block oil cylinder (in figure for marking) action, carries out convex enlarging to tubing 4; At this moment air chamber 68 forms confined space with tubing 4, in air chamber 68, be that Middle pressure draught fan passes into pressure-air (about 0.4Mpa) by cooling blower 10, the air in flaring die 17 is extracted in vavuum pump 19 actions simultaneously, form vacuum (about 0.4Mpa) therein, make the flared part of tubing 4 be close to flaring die 17; After a period of time (adjustable), strong cooling air port i.e. 12 pressure-air entrances is closed, and vacuumizes and stops, high pressure gas discharge; Then, spraying cooling fluid to tubing 4 flared parts carries out cooling; After cooling a period of time, cooling fluid stops spray, blows cooling air; The oil cylinder of closing the door unclamps, and blast-cold is only but becalmed; Enlarging slide block oil cylinder is return original position; Upper clamping cylinder 59 and lower clamping cylinder 67 reset, and in drive, fixture block holder 60 and lower fixture block holder 66 reset; Demoulding oil jar action, releases flaring die tubing 4, and after demoulding time delay a period of time, enlarging moulding oil cylinder 11 resets, and returns to original position; Expanding device 7 resets to initial point; Last transverse shifting oil cylinder 36 moves, and tubing 4 is pushed on the trustship support on bracket 3 sides; Enlarging tubing is produced complete.
Claims (5)
1. a PVC heavy caliber pipe-expanding machine, comprise frame, it is characterized in that, described frame be provided with for the bracket elevating mechanism of lifting tubing, for clamp and the clipp-seal device of sealed tube, expanding device, for tubing being delivered into conveying device and the heater of machining area, described heater and expanding device are positioned at the same side;
Described bracket elevating mechanism comprises the bracket being connected with frame, one or more drive links, one or more elevating screws, one or more lifting nuts, one or more lifting TY reductors, one or more adapter sleeves, lifting micro-reducer, motor flange cover and lifting motor, described elevating screw is threaded with lifting nut and is corresponding one by one, described lifting nut is connected with bracket contact, described elevating screw connects with lifting TY reductor and is corresponding one by one, described adjacent two lifting TY reductors connect by drive link and junction is provided with adapter sleeve, described lifting motor is connected with lifting micro-reducer, the lifting TY reductor that described lifting micro-reducer is adjacent by motor flange cover is connected,
Described clipp-seal device comprises clamping device and sealing device, described clamping device comprises travel switch, upper clamping cylinder, upper fixture block holder, guide pillar, lower fixture block holder, lower clamping cylinder, large fixture block under one, a upper large fixture block, multiple upper little fixture blocks and multiple lower little fixture blocks that are connected successively that connect successively, above-mentioned fixture block is semicircle, the seat that is fixedly clamped under described is located in frame, described upper clamping cylinder is arranged on and is fixedly clamped on seat, lower clamping cylinder is arranged on lower fixture block holder, the seat that is fixedly clamped on described has been fixedly connected with large fixture block, described upper large fixture block has connected multiple little fixture blocks successively, the seat that is fixedly clamped under described has been fixedly connected with time large fixture block, described lower large fixture block has connected multiple lower little fixture blocks successively, described is upper, lower fixture block holder connects slip by guide pillar, described travel switch is located at and is fixedly clamped on seat, described sealing device comprises envelope pressure fixture block support and upper envelope gas flange oil cylinder, and described upper envelope presses fixture block support to be arranged on expanding device, and described upper envelope gas flange oil cylinder is arranged on envelope and presses on fixture block support,
Described expanding device comprises enlarging car, enlarging car advance and retreat oil cylinder, enlarging moulding oil cylinder and flaring die, described flaring die is located on enlarging car, described enlarging car is by enlarging car advance and retreat hydraulic oil cylinder driving, described enlarging moulding oil cylinder is located at flaring die top, and flaring die is by enlarging moulding hydraulic oil cylinder driving;
Described conveying device comprises tubing conveying mechanism and transverse moving mechanism, described tubing conveying mechanism comprises that transfer gantry, at least two groups comprise the conveying mechanism of carrying front-wheel, carrying trailing wheel and conveying motor, described transfer gantry is provided with to be carried front-wheel and carries trailing wheel, described conveying front-wheel is connected conveying mechanism by belt with carrying motor formation triangle with conveying trailing wheel, and described conveying mechanism is located at enlarging car one side; Described transverse moving mechanism comprises underframe, transverse shifting frame, hoist cylinder, cross slide way, horizontal linear bearing, transverse shifting oil cylinder, described underframe is arranged on bracket and underframe is provided with transverse shifting frame, described transverse shifting frame is connected with cross slide way by horizontal linear bearing, and the transverse shifting of described transverse shifting frame and longitudinally lifting are driven by transverse shifting oil cylinder and hoist cylinder respectively;
Described heater comprises heating cabinet, and described heating cabinet outside is provided with hot baffle, in described heating cabinet, is provided with heating tube, and heating tube is provided with heating core print seat, and described heating tube has connected water ring; Described heater also be connected bits blower, described bits blower comprises blower and blows bits blower fan, the described bits blower fan that blows connects blower by blower joint; Described heater one side is also provided with ejector sleeve device, and described ejector sleeve device is driven by Hydraulic Station.
2. a kind of PVC heavy caliber pipe-expanding machine according to claim 1, is characterized in that, described elevating screw and lifting nut are 4 or 6.
3. a kind of PVC heavy caliber pipe-expanding machine according to claim 1, is characterized in that, described flaring die is the tapered flaring die in end.
4. a kind of PVC heavy caliber pipe-expanding machine according to claim 1, it is characterized in that, in described expanding device, be also provided with a pressue device and exhaust apparatus, described pressue device comprises air chamber, cooling blower, strong cooling air port, described cooling blower is connected with strong cooling air port, and described air chamber is connected by removable connector with enlarging car; Described exhaust apparatus is by a vavuum pump control.
5. a kind of PVC heavy caliber pipe-expanding machine according to claim 1, it is characterized in that, in described conveying device, be also provided with tube device, described tube device is located on transverse shifting frame, comprise at least 2 tube crawler belts and tube motor, the V-shaped setting of staggering of described tube crawler belt, and driven by tube motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320880290.4U CN203792712U (en) | 2013-12-30 | 2013-12-30 | PVC (Polyvinyl Chloride) large-caliber pipe-expanding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320880290.4U CN203792712U (en) | 2013-12-30 | 2013-12-30 | PVC (Polyvinyl Chloride) large-caliber pipe-expanding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203792712U true CN203792712U (en) | 2014-08-27 |
Family
ID=51374976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320880290.4U Expired - Fee Related CN203792712U (en) | 2013-12-30 | 2013-12-30 | PVC (Polyvinyl Chloride) large-caliber pipe-expanding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203792712U (en) |
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2013
- 2013-12-30 CN CN201320880290.4U patent/CN203792712U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20140827 Termination date: 20211230 |
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| CF01 | Termination of patent right due to non-payment of annual fee |