CN101328009B - Helical type florescent lamp automatic elbow forming machines - Google Patents
Helical type florescent lamp automatic elbow forming machines Download PDFInfo
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- CN101328009B CN101328009B CN2008100632203A CN200810063220A CN101328009B CN 101328009 B CN101328009 B CN 101328009B CN 2008100632203 A CN2008100632203 A CN 2008100632203A CN 200810063220 A CN200810063220 A CN 200810063220A CN 101328009 B CN101328009 B CN 101328009B
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- bend pipe
- clamp
- pipe
- fixedly connected
- fluorescent lamp
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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Abstract
The invention relates to an automatic elbow molding machine of a helical type fluorescent lamp belonging to the mechanism technology field of fluorescent lamp production. The molding machine of the invention comprises a double helix elbow unit, a transmission unit, a heating unit, a first parison tube shift unit, a second pasrison tube shift unit, an elbow clamp unit and a pulling unit, which is characterized in that the double helix elbow unit comprises an elbow mechanism and an electric terminal mechanism which are matchably arranged, and an antipyretic unit is matchably arranged in front of the elbow mechanism, a machine body support which is fixedly connected with a tube head mold heating mechanism and the electric terminal mechanism is matchably arranged in front of the heating unit. Because of the multi work stations design, the helical type fluorescent lamp automatic elbow molding machine can carry out four procedures of the lamp production at the same time during the production process: mold heating, mold elbow molding, mold cooling and mold laying off, which greatly improves the production efficiency, greatly reduces the production cost of the company, and has a wide extended significance.
Description
Technical field
The invention belongs to the mechanism technical field that luminescent lamp is made, be specifically related to a kind of helical fluorescent lamp automatic bend pipe shaping apparatus.
Background technology
At present, the tube-bending machine of helical fluorescent lamp tube all is to adopt single station, China applies for a patent that (application number is: 20076770372.1) disclose a kind of name and be called energy saving lamp tube helix tube bender and comprise liftable duplex corner, described this tube-bending machine also comprises vertical fluorescent tube base pipe heating device, the base pipe is sent into the one-level base pipe shift assembly of heating unit, a heating region in the base pipe self-heating apparatus is moved to the secondary base pipe shift assembly of another heating region, the base pipe is shifted out the bend pipe gripping mechanism that heating unit to duplex swan neck system carries out bend pipe, base pipe after being shaped is shifted out the pulling off device of tube-bending machine, described one-level base pipe shift assembly, secondary base pipe shift assembly, the bend pipe gripping mechanism, pulling off device is respectively equipped with the left and right sides clamp that cooperates with end about the base pipe, though changed manual in the past drawback to a certain extent, but working efficiency is not high, enterprise for industrialization, manpower and materials will be increased, the cost of great number be paid.
Summary of the invention
At the above-mentioned problems in the prior art, the object of the invention is to provide a kind of technical scheme of helical fluorescent lamp automatic bend pipe shaping apparatus.
Described helical fluorescent lamp automatic bend pipe shaping apparatus, comprise the duplex swan neck system, transmission mechanism, vertical fluorescent tube base pipe heating device, the base pipe is sent into the one-level base pipe shift assembly of heating unit, a heating region in the base pipe self-heating apparatus is moved to the secondary base pipe shift assembly of next heating region, the base pipe is shifted out the bend pipe gripping mechanism that heating unit to duplex swan neck system carries out bend pipe, base pipe after being shaped is shifted out the pulling off device of tube-bending machine, it is characterized in that described duplex swan neck system comprises the pipe bending mechanism of the setting that cooperatively interacts and connects electrical mechanisms, pipe bending mechanism the place ahead is equipped with the device of bringing down a fever, heating unit the place ahead is equipped with body rack, the fixedly connected tube head mold heated of described body rack mechanism, connect electrical mechanisms.
Above-mentioned helical fluorescent lamp automatic bend pipe shaping apparatus, adopt the design of multi-work-station, can carry out four procedures that fluorescent tube is made in process of production simultaneously: mold heated, the moulding of mould bend pipe, mold cools down, mould blanking, improved production efficiency greatly, production cost for enterprise has had significant reduction, has dissemination extremely widely.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a secondary base pipe shift assembly structural representation of the present invention;
Fig. 3 is a heating unit structural representation of the present invention;
Fig. 4 is a gripping mechanism structural representation of the present invention;
Fig. 5 is the apparatus structure synoptic diagram of bringing down a fever of the present invention;
Fig. 6 is the electrical mechanisms structural representation that connects of the present invention;
Fig. 7 is a pipe bending mechanism structural representation of the present invention;
Fig. 8 is another pipe bending mechanism structural representation of the present invention.
Embodiment
The invention will be further described below in conjunction with accompanying drawing, and provide embodiment.
Helical fluorescent lamp automatic bend pipe shaping apparatus, comprise duplex swan neck system and transmission mechanism 72, also comprise vertical fluorescent tube base pipe heating device 67, with the base pipe send into heating unit 67 one-level base pipe shift assembly 68, with a heating zone in the base pipe self-heating apparatus 67 move to the secondary base pipe shift assembly 69,69a of next heating zone, with the base pipe shifts out bend pipe gripping mechanism 71,71a that heating unit 67 to duplex swan neck system carries out bend pipe, base pipe after will being shaped shifts out tube-bending machine pulling off device 75.Described heating unit 67 comprises preceding baking oven 54, preceding baking oven fixed support 59, back baking oven 55, back baking oven fixed support 56, preceding baking oven fixed support 59 fixedly connected frame runners 73, the crossbeam 57 of back baking oven fixed support 56 fixedly connected framework pillars 70, described back baking oven 55 left and right sides are supreme to be equipped with one group of clamp 60 downwards, and clamp 60 interconnects by union lever 58; The right and left of described heating unit 67 is equipped with secondary base pipe shift assembly 69,69a, and fixedly connected with framework pillar 70 end faces by positioning seat 46, described secondary base pipe shift assembly 69,69a is provided with the hoisting appliance that cylinder 45 drives, described hoisting appliance comprises the clamp 48 that connects material that cooperatively interacts and be provided with, clamp swing arm 51a connects material, clamp Connection Block 52a connects material, the displacement clamp 49 that connects material clamp permanent seat 50a and cooperatively interact and be provided with, displacement clamp swing arm 51, displacement clamp Connection Block 52, displacement clamp permanent seat 50 and clamp gear 47, positioning seat 46 fixedly connected clamp Connection Block 52a and the displacement clamp Connection Blocks 52 of connecting material; Both sides, described heating unit 67 below are equipped with bend pipe gripping mechanism 71,71a, described bend pipe gripping mechanism 71,71a comprise bend pipe clamp controlling organization, described bend pipe clamp controlling organization comprises drive-motor 63, the travel switch permanent seat 64 that is fixed on the bend pipe clamp permanent seat 61, and travel switch permanent seat 64 connects the travel switch 65 control linkage bend pipe clamps 62 that are provided with; Heating unit 67 the place aheads are equipped with body rack 26, and described body rack 26 connects tube head mold heated mechanism 66 is set, and described tube head mold heated mechanism 66 comprises firn-jet head and fire cover.
The swan neck system of helical fluorescent lamp automatic bend pipe shaping apparatus comprises the pipe bending mechanism 18 of the setting that cooperatively interacts and connects electrical mechanisms 25, described pipe bending mechanism 18 comprises center aluminium dish 17, aluminium dish 17 tops, center connect by set screw 16 wiring board 15 are set down, described time wiring board 15 cross-under be provided with one group of quantity corresponding with the duplex bend pipe mould 18a of mechanism connect electric screw 14; Aluminium dish 17 times circles in center are that aluminium dish lug is fixedlyed connected with dispenser 5, dispenser 5 by bracing frame 12 support fixation drives by drive-motor 13a link, drive the rotation of center aluminium dish 17 simultaneously, and change by 29 pairs of dispensers 5 of travel switch fixedly connected on the support 27 28 control cams and to stop control; The connection of dispenser 5 tops is provided with position brake device 11a, the aluminium dish lug side of 17 times circles of position brake device 11a and center aluminium dish is pasted to wipe and is cooperated, when quitting work, this position brake device 11a by with the aluminium dish lug friction fit of aluminium dish 17 bottoms, center, can make center aluminium dish 17 reduce inertia, quit work stably; Center aluminium dish 17 upper surfaces are by the uniform fixedly connected one group of liftable duplex bend pipe mould 18a of mechanism that is provided with of screw, here adopt four liftable duplex bend pipe mould 18a of mechanism, when being work, reason can make bend pipe, cooling, blanking, heating four procedures in the bend pipe operation carry out simultaneously, enhance productivity, so described winding electricity screw 14 is divided into four groups, thereby corresponding four liftable duplex bend pipe mould 18a of mechanism.And the described duplex bend pipe mould 18a of mechanism comprises screw mandrel anchor 2, screw mandrel anchor 2 tops are by the fixedly connected mould screw mandrel 6 of screw mandrel nut 6a, mould screw mandrel 6 tops are provided with duplex bend pipe mould 1 by firestopping ring 4 connections, mould screw mandrel 6 middle parts are equipped with interconnective locating sleeve 7, dowel disc 10, union lever 8, mould screw mandrel 6 bottoms are equipped with position brake device 11, and be rotationally connected with bend pipe motor 13 and cooperate, described bend pipe motor 13 is identical with position brake device 11a function with drive-motor 13a with position brake device 11; The connection of corresponding position, screw mandrel anchor 2 bottom is provided with upper limit position switch 9, lower position switch 9a, upper limit position switch 9, lower position switch 9a spacing is adjustable, the dowel disc 10 that described mould screw mandrel 6 is connected with union lever 8 by locating sleeve 7 with upper limit position switch 9, the corresponding cooperation of lower position switch 9a carry out the mould location, promptly the spacing of upper control limit bit switch 9, lower position switch 9a can be to the control of the crooked number of turns of duplex fluorescent tube.The corresponding triangular shape retaining pipe aluminium head 3 that supports by aluminium head bracket 3a that is equipped with in duplex bend pipe mould 1 both sides of the described duplex bend pipe mould 18a of mechanism, described aluminium head bracket 3a and mould screw mandrel 6, screw mandrel anchor 2 are connected; Because temperature is than higher in the helical lampl moulding process, tenesmus distortion easily, the design of this retaining pipe aluminium head 3 can effectively prevent the distortion of spiral tube lamp base, keeps the appearance requirement of helical lampl product.The described electrical mechanisms that connects comprises runners 19, foot rest 19 is fixedlyed connected with the support 26 of tube-bending machine, slide block 22 is slidingly matched with the chute 22a that is fixedly connected on foot rest 19 bottoms, described slide block 22 is provided with upper wiring board 15a below by web plate 24 connections, upper wiring board 15a connection is provided with winding electricity screw 14a, connecing the fixedly connected travel switch 23 in electric screw 14a one end and foot rest 19 bottoms touches and cooperates, described winding electricity screw 14a is divided into two groups, and four groups that are provided with on the corresponding wiring board 15 down connect when working in the electric screw 14 that pipe bent position connects electric screw and blanking place connects electric screw; Web plate 24 is by spring and cylinder 21 resilient engagement, and cylinder 21 is fixedlyed connected with foot rest 19 by cylinder block 20.
During tube-bending machine energising work, the left and right sides clamp of one-level base pipe shift assembly 68 goes out the base pipe clamp in the hopper, and move to secondary base pipe shift assembly 71, on the clamp 48 that connects material on the 71a, the clamp 48 that connects material moves to the base pipe in the preheating zone of heating unit 67, the corresponding time of preheating, secondary base pipe shift assembly 71, displacement clamp 49 on the 71a heats the twice heating zone that the base pipe in the preheating zone moves to the below, preheating zone, after heating the corresponding time, two softened zones that again it moved to below the heating zone soften, after the softening corresponding time, bend pipe gripping mechanism 71, the corner 1 that base pipe after the bend pipe clamp 62 of 71a will be handled moves on the duplex swan neck system carries out spiral bending tube according to the spiral inclination angle.And power connection equipment 25 energising runnings, by the whole oscilaltion that travel switch 23 control slide blocks 22, web plate 24, upper wiring board 15a constitute, oscilaltion is to be driven by spring by cylinder fixedly connected on the foot rest 19 21.When upper wiring board 15a descends, it connect to be provided with connects when being connected the connecing electric screw 14 and touch of setting on electric screw 14a and the following wiring board 15, bend pipe motor 13 rotates and drives 6 risings of mould screw mandrel and carries out bend pipe, mould screw mandrel 6 rises to dowel disc 10 and touches the location, back with upper limit position switch 9, and bend pipe motor 13 being stopped operating stably by position brake device 11, upper wiring board 15a outage is simultaneously risen.Behind the bending tube forming, drive-motor 13a drives dispenser 5 runnings, dispenser 5 drives center aluminium dish 17 and rotates, and bending tube forming gripping mechanism 71,71a breaks away from the time of pin and the time of center aluminium dish 17 rotations adapts, center aluminium dish 17 rotates and drives the duplex bend pipe mould 18a of mechanism rotation simultaneously, when forwarding the cooling station to, be that stroke switch 28 separates with cam 29, dispenser 5 stops operating, be that center aluminium dish 17 also stops operating, can cool off this moment to the moulding bend pipe, be cooled to the suitable time, be that stroke switch 28 touches with cam 29 and cooperates, dispenser 5 drives center aluminium dish 17 again and rotates, forward to when getting the material station, rotating and drive mould screw mandrel 6 by bend pipe motor 13 descends, mould screw mandrel 6 descends, dowel disc 10 touches the location, back with lower position switch 9a, and bend pipe motor 13 is stopped operating by position brake device 11, after the upper wiring board 15a outage simultaneously, in the meantime, pulling off device 75 is finished and is got material, the shaping fluorescent tube that pulling off device takes off is put into 35 li of the receiving hoppers of the device 74 of bringing down a fever, the device 74 of bringing down a fever is devices independently, the shaping fluorescent tube can prolong conveying belt and bring down a fever, because fluorescent tube is in the refrigerating work procedure of bend pipe, cooling time is limited, the febrifugal purpose is to allow fluorescent tube cool off uniformly, the described device 74 of bringing down a fever is provided with runners 30, be equipped with the cylinder 33 that connects conveying belt 37 on the runners 30,33a, conveying belt 37 both sides are furnished with by supporting seat 42 support guardrails 36, the base pipe that prevents to be shaped prolongs when conveying belt 37 carries out bringing down a fever of uniform temperature and drops on the ground, runners 30 is equipped with the motor plate 31 of fixed electrical machinery 44, motor 44 links with cylinder 33 by chain 32 and is connected, receiving hopper 35 is equipped with above cylinder 33, and by hopper base 34 support fixation that are connected on the runners 30, connect the cylinder 33a front lower place that speed regulator 41 is set and hopper 40 is set by stationary shaft 39 connections, the speed that speed regulator 41 is regulated conveying belt 37, cylinder 33, be equipped with heating tube 38 in 33a and the conveying belt 37, heating tube 38 is equipped with the fixed strip 43 that connects runners 30.Same working process, when forwarding heating station to, the firn-jet head of mold heated mechanism 66 heats mould, by the fire cover with fire concentrate be heated to the suitable time after, rotate back into the bend pipe station and carry out bend pipe.Go round and begin again like this carry out in the lamp tube formation process bend pipe, cool off, get material, heating process, enhance productivity.
Claims (10)
1. helical fluorescent lamp automatic bend pipe shaping apparatus, comprise the duplex swan neck system, transmission mechanism (72), vertical fluorescent tube base pipe heating device (67), the base pipe is sent into the one-level base pipe shift assembly (68) of heating unit (67), a heating region in the base pipe self-heating apparatus (67) is moved to the secondary base pipe shift assembly (69 of next heating region, 69a), the base pipe is shifted out the bend pipe gripping mechanism (71 that heating unit (67) to duplex swan neck system carries out bend pipe, 71a), base pipe after the moulding is shifted out the pulling off device (75) of tube-bending machine, it is characterized in that described duplex swan neck system comprises the pipe bending mechanism (18) of the setting that cooperatively interacts and connects electrical mechanisms (25), pipe bending mechanism (18) the place ahead is equipped with the device of bringing down a fever (74), heating unit (67) the place ahead is equipped with body rack (26), described body rack (26) fixedly connected tube head mold heated mechanism (66) with connect electrical mechanisms (25), described pipe bending mechanism (18) comprises center aluminium dish (17), dispenser (5), fixedly connected four the liftable duplex bend pipe mould mechanisms of described center aluminium dish (17) (18a).
2. helical fluorescent lamp automatic bend pipe shaping apparatus as claimed in claim 1, it is characterized in that center aluminium dish (17) top is equipped with down wiring board (15), described wiring board (15) cross-under down is provided with winding electricity screw (14), center aluminium dish (17) is fixedlyed connected with dispenser (5), and described dispenser (5) is equipped with position brake device (11a), drive-motor (13a), travel switch (28).
3. helical fluorescent lamp automatic bend pipe shaping apparatus as claimed in claim 1, the right and left that it is characterized in that heating unit (67) is equipped with secondary base pipe shift assembly (69,69a), and fixedly connected with framework pillar (70) end face by positioning seat (46), described secondary base pipe shift assembly (69,69a) be provided with the hoisting appliance that cylinder (45) drives, described hoisting appliance comprises the clamp that connects material (48) that is equipped with, clamp swing arm (51a) connects material, clamp Connection Block (52a) connects material, the displacement clamp (49) that connects material clamp permanent seat (50a) and cooperatively interact and be provided with, displacement clamp swing arm (51), displacement clamp Connection Block (52), displacement clamp permanent seat (50) and clamp gear (47), fixedly connected clamp Connection Block (52a) and the displacement clamp Connection Block (52) of connecting material of positioning seat (46).
4. helical fluorescent lamp automatic bend pipe shaping apparatus as claimed in claim 1, it is characterized in that heating unit (67) comprises preceding baking oven (54), preceding baking oven fixed support (59), back baking oven (55), the back baking oven fixed support (56) that cooperatively interacts and be provided with, the preceding fixedly connected frame runners of baking oven fixed support (59) (73), the crossbeam (57) of the fixedly connected framework pillar of back baking oven fixed support (56) (70), described back baking oven (55) left and right sides is equipped with one group of clamp (60), and clamp (60) interconnects by union lever (58).
5. helical fluorescent lamp automatic bend pipe shaping apparatus as claimed in claim 1, it is characterized in that both sides, described heating unit (67) below are equipped with bend pipe gripping mechanism (71,71a), described bend pipe gripping mechanism (71,71a) comprise bend pipe clamp controlling organization, described bend pipe clamp controlling organization comprises bend pipe clamp permanent seat (61), the fixedly connected drive-motor of bend pipe clamp permanent seat (61) (63), travel switch permanent seat (64), travel switch permanent seat (64) connection is provided with travel switch (65), and travel switch (65) is connected with bend pipe clamp (62).
6. helical fluorescent lamp automatic bend pipe shaping apparatus as claimed in claim 1 is characterized in that the fixedly connected tube head mold heated mechanism (66) of described body rack (26) comprises firn-jet head and fire cover.
7. helical fluorescent lamp automatic bend pipe shaping apparatus as claimed in claim 1, it is characterized in that the described electrical mechanisms (25) that connects comprises the foot rest (19) of fixedlying connected with body rack (26), the fixedly connected chute of foot rest (19) (22a), cylinder block (20), slide block (22) below that is slidingly connected in the chute (22a) is provided with upper wiring board (15a) by web plate (24) connection, described upper wiring board (15a) connection is provided with winding electricity spiral shell (14a), cylinder block (20) is gone up fixedly connected cylinder (21) and is connected cooperation by spring with web plate (24), the fixedly connected travel switch in described foot rest (19) bottom (23), travel switch (23) with connect electric screw (14a) end and touch and cooperate.
8. helical fluorescent lamp automatic bend pipe shaping apparatus as claimed in claim 1, it is characterized in that the described device of bringing down a fever (74) comprises runners (30), runners (30) is equipped with the cylinder (33 that connects conveying belt (37), 33a), the motor plate (31) of fixed electrical machinery (44), cylinder (33) link connects motor (44), cylinder (33) top is equipped with receiving hopper (35), cylinder (33a) connection is provided with speed regulator (41), cylinder (33a) front lower place is equipped with hopper (40), cylinder (33,33a) inner ring with conveying belt (37) formation is equipped with heating tube (38).
9. helical fluorescent lamp automatic bend pipe shaping apparatus as claimed in claim 2, it is characterized in that described duplex bend pipe mould mechanism (18a) comprises screw mandrel anchor (2), screw mandrel anchor (2) top is by the fixedly connected mould screw mandrel of screw mandrel nut (6a) (6), and screw mandrel anchor (2) corresponding position, bottom is equipped with upper limit position switch (9), lower position switch (9a).
10. the described mould screw mandrel of helical fluorescent lamp automatic bend pipe shaping apparatus as claimed in claim 9 (6) connection is provided with duplex bend pipe mould (1), duplex bend pipe mould (1) both sides are equipped with the triangular shape retaining pipe aluminium head (3) that is supported by aluminium head bracket (3a), retaining pipe aluminium head (3) below is equipped with firestopping ring (4), the locating sleeve (7) that mould screw mandrel (6) middle part is equipped with, union lever (8), dowel disc (10) and upper limit position switch (9), lower position switch (9a) touches cooperation, and mould screw mandrel (6) bottom is equipped with position brake device (11), bend pipe motor (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100632203A CN101328009B (en) | 2008-07-23 | 2008-07-23 | Helical type florescent lamp automatic elbow forming machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100632203A CN101328009B (en) | 2008-07-23 | 2008-07-23 | Helical type florescent lamp automatic elbow forming machines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101328009A CN101328009A (en) | 2008-12-24 |
| CN101328009B true CN101328009B (en) | 2011-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100632203A Expired - Fee Related CN101328009B (en) | 2008-07-23 | 2008-07-23 | Helical type florescent lamp automatic elbow forming machines |
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| Country | Link |
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| CN (1) | CN101328009B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101948239B (en) * | 2010-09-17 | 2012-09-19 | 杭州临安禾强电器有限公司 | Tube-pin bending machine for helical tubes |
| CN102531357B (en) * | 2011-12-30 | 2014-03-19 | 浙江阳光照明电器集团股份有限公司 | Processing method for double-spiral energy-saving fluorescent tube |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101047106A (en) * | 2007-04-13 | 2007-10-03 | 潘昌贵 | Tube bender of energy-saving tube screw tube bending machine |
| CN101139160A (en) * | 2007-07-27 | 2008-03-12 | 潘昌贵 | Energy saving lamp tube helix tube bender |
| CN201046939Y (en) * | 2007-05-30 | 2008-04-16 | 潘昌贵 | Energy-saving lamp helical pipe bender formed tube drawing device |
| CN201087169Y (en) * | 2007-07-27 | 2008-07-16 | 潘昌贵 | Helical tube bender for energy saving lamp tube |
-
2008
- 2008-07-23 CN CN2008100632203A patent/CN101328009B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101047106A (en) * | 2007-04-13 | 2007-10-03 | 潘昌贵 | Tube bender of energy-saving tube screw tube bending machine |
| CN201046939Y (en) * | 2007-05-30 | 2008-04-16 | 潘昌贵 | Energy-saving lamp helical pipe bender formed tube drawing device |
| CN101139160A (en) * | 2007-07-27 | 2008-03-12 | 潘昌贵 | Energy saving lamp tube helix tube bender |
| CN201087169Y (en) * | 2007-07-27 | 2008-07-16 | 潘昌贵 | Helical tube bender for energy saving lamp tube |
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| CN101328009A (en) | 2008-12-24 |
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