CN210731529U - Pipe joint welding equipment - Google Patents
Pipe joint welding equipment Download PDFInfo
- Publication number
- CN210731529U CN210731529U CN201921859365.4U CN201921859365U CN210731529U CN 210731529 U CN210731529 U CN 210731529U CN 201921859365 U CN201921859365 U CN 201921859365U CN 210731529 U CN210731529 U CN 210731529U
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- pipe joint
- die
- rotating shaft
- rack assembly
- material ejecting
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Abstract
The utility model relates to a pipe joint welding equipment, it includes rack assembly, coupling pass guide slot and connects the material mould, and coupling pass guide slot is equipped with the discharge gate, and the discharge gate is downward, connects the material mould to be located the discharge gate below, connect the material mould to include front mould and back mould, and the relative one side of front mould and back mould is equipped with the breach respectively, and the breach of front mould and the breach of back mould constitute the coupling together and dodge the recess, and the coupling dodges the recess top surface and opens, and the front mould top surface is equipped with the passageway shielding surface, and the passageway shielding surface is used for sheltering from the discharge gate of coupling pass guide; the front die and the rear die are respectively arranged on the rack assembly in a transverse sliding mode. The pipe joint welding equipment realizes blocking of discharging of the discharging opening, alignment of the pipe joint avoiding groove to the discharging opening, receiving of materials, moving of a received workpiece to a welding processing area, and separation of the front die and the rear die to achieve discharging by controlling the transverse movement of the front die and the rear die, so that the process is reasonable, and the working efficiency is improved.
Description
Technical Field
The utility model relates to a welding equipment, especially a coupling welding equipment.
Background
Metal fittings (stainless steel fittings) are commonly used in water systems and other systems, wherein, for example, a metal fitting with two ends having different diameters basically requires two pipes with different diameters to be welded together to form the metal fitting. The conventional pipe joint welding equipment adopts manual feeding, clamping, welding and discharging, so that the working efficiency is low, the product quality is poor, and the processing cost is high, so that a stainless steel pipeline system cannot be popularized on a large scale.
Disclosure of Invention
An object of the utility model is to provide a coupling automatic weld equipment that simple structure is reasonable, machining efficiency is high.
The purpose of the utility model is realized like this:
the utility model provides a coupling welding equipment, includes rack assembly, coupling biography guide slot and connects the material mould, and coupling biography guide slot is equipped with the discharge gate, and the discharge gate is downward, connects the material mould to be located discharge gate below, its characterized in that: the material receiving die comprises a front die and a rear die, wherein notches are respectively arranged on the opposite sides of the front die and the rear die, the notch of the front die and the notch of the rear die jointly form a pipe joint avoiding groove, the top surface of the pipe joint avoiding groove is open, and a channel shielding surface is arranged on the top surface of the front die and used for shielding a discharge hole of a pipe joint transmission guide groove; the front die and the rear die are respectively arranged on the rack assembly in a transverse sliding mode. When the rear die and the front die are mutually butted, notches of the rear die and the front die are combined into a joint avoidance groove; the rear die and the front die continue to move until the joint avoiding groove is aligned with the discharge port, and the two processed workpieces can fall into the joint avoiding groove; and then, the rear die and the front die are moved to specific positions together, welding processing can be carried out, the front die and the rear die are separated by a certain distance after welding, and the welded pipe joint falls off.
The purpose of the utility model can also adopt the following technical measures to solve:
as a more specific scheme, a transverse linear guide rail is arranged on the rack assembly, a front sliding plate and a rear sliding plate are respectively arranged on the transverse linear guide rail in a sliding manner, a front die is arranged on the front sliding plate, and a rear die is arranged on the rear sliding plate; the rear sliding plate is in transmission connection with the workpiece loading and unloading cylinder; the rack assembly is provided with a baffle corresponding to the front of the front sliding plate, and a spring is arranged between the baffle and the front sliding plate. The front die and the front sliding plate automatically reset under the action of the spring.
As a further scheme, a guide rod is arranged at the front end of the front sliding plate, the guide rod penetrates through the baffle plate, and the spring is sleeved outside the guide rod. The spring housing is established outside the guide bar, plays the effect of anticreep, moreover, ensures that the spring effort is directional along the guide bar, avoids influencing the smooth and easy degree of sliding of preceding slide.
As a further scheme, a first material ejecting rotating shaft and a second material ejecting rotating shaft are respectively arranged on the left side and the right side of the material receiving mould, the first material ejecting rotating shaft and the second material ejecting rotating shaft are respectively arranged on the rack assembly in a longitudinal linear sliding mode, the first material ejecting rotating shaft and the second material ejecting rotating shaft are arranged concentrically, and the first material ejecting rotating shaft or the second material ejecting rotating shaft is in transmission connection with a driving motor; and a welding gun support is arranged on the rack assembly, a welding gun is arranged on the welding gun support, and the welding gun is positioned above the material receiving mold. First liftout pivot and second liftout pivot are drawn close the removal each other, can dodge two work pieces and push down in the recess with the coupling, aim at the seam of two work pieces with welder and weld, and in the welded, driving motor starts, can make two work pieces rotatory simultaneously, then all weld the seam.
As a further scheme, a first pipe joint centering ejector rod and a second pipe joint centering ejector rod are respectively arranged at the centers of the opposite ends of the first ejection rotating shaft and the second ejection rotating shaft, and limiting steps are respectively arranged at the outer ends of the first pipe joint centering ejector rod and the second pipe joint centering ejector rod. The first pipe joint centering ejector rod and the second pipe joint centering ejector rod are respectively inserted into holes of the two workpieces, so that the two workpieces are concentric, and meanwhile, the limiting step is used for propping against the end face of the outer port of the workpiece, so that the two workpieces are pressed tightly.
As a further scheme, a first longitudinal linear guide rail and a second longitudinal linear guide rail are respectively arranged on the rack assembly corresponding to the left side and the right side of the material receiving mold, a first supporting plate is longitudinally arranged on the first longitudinal linear guide rail in a sliding manner, a first material ejecting rotating shaft is rotatably arranged on the first supporting plate, a driving motor is arranged on the first supporting plate, and the driving motor is in transmission connection with the first material ejecting rotating shaft; the rack assembly is provided with a first material ejecting cylinder, and the first material ejecting cylinder is used for pushing the first supporting plate.
As a further scheme, a second supporting plate is longitudinally arranged on the second longitudinal linear guide rail in a sliding mode, a second ejection rotating shaft is rotatably arranged on the second supporting plate, and a second ejection cylinder is arranged on the rack assembly and used for pushing the second supporting plate. The first material ejecting rotating shaft and the second material ejecting rotating shaft slide on the linear guide rail, the straightness is high, the concentricity of the first material ejecting rotating shaft and the second material ejecting rotating shaft is initially adjusted, and the concentricity can be always kept, so that accumulated errors are avoided.
As a further scheme, a limit stop is arranged behind the rear die, a guide seat is arranged on the rack assembly, the limit stop is longitudinally arranged on the guide seat in a sliding mode, and the guide seat is in transmission connection with a limit cylinder. When the limit stop block extends to the rear part of the rear die, the retreating distance of the rear die can be limited, so that when the front die and the rear die retreat to the position where the rear die cannot retreat, the pipe joint avoiding groove is aligned with the first pipe joint centering mandril and the second pipe joint centering mandril.
As a further scheme, the pipe joint conveying guide groove comprises a first conveying guide groove, a second conveying guide groove and a blanking elbow, one end of the first conveying guide groove is used for being communicated with an output port of the first pipe joint sequencing vibration disc, one end of the second conveying guide groove is used for being communicated with an output port of the second pipe joint sequencing vibration disc, the other end of the first conveying guide groove and the other end of the second conveying guide groove are mutually closed and connected with the blanking elbow, and the blanking elbow is provided with two channels. When the other end of the first transmission guide groove and the other end of the second transmission guide groove are mutually closed, the two workpieces can be mutually close, the stroke and time of pressing the two workpieces after being output are reduced, the working efficiency is improved, and the splicing error is reduced.
As a further scheme, the rack assembly comprises a main rack and an auxiliary rack, wherein a bottom plate is arranged on the main rack, a material receiving mold is arranged on the bottom plate, the auxiliary rack is arranged in front of the main rack, and a first pipe joint sequencing vibration disc and a second pipe joint sequencing vibration disc are arranged on the auxiliary rack.
The utility model has the advantages as follows:
(1) the pipe joint welding equipment blocks the discharging of the discharging opening by controlling the transverse movement of the front die and the rear die, the pipe joint avoiding groove is aligned with the discharging opening to receive the materials, the connected workpieces are moved to a welding processing area, and the front die and the rear die are separated to realize discharging, so that the working procedure is reasonable, and the working efficiency is improved;
(2) the front die of the pipe joint welding equipment is driven by the spring to have the tendency of moving backwards, the movement of the front die and the movement of the rear die in a certain stroke are realized, and the rear die is controlled by the driving mechanism (such as an air cylinder) and can be accurately moved to a required position for welding.
Drawings
Fig. 1 is a schematic view of a partial structure according to an embodiment of the present invention.
Fig. 2 is an enlarged schematic view of a portion a in fig. 1.
Fig. 3 is a schematic structural view of the welded workpiece (metal joint) according to the present invention.
Fig. 4 is a schematic view of an angle structure of the present invention.
Fig. 5 is a schematic view of the local position overlooking structure of the present invention.
FIG. 6 is a schematic sectional view of the structure of FIG. 5B-B.
Fig. 7 is a schematic structural view of another working state of fig. 5.
FIG. 8 is a schematic cross-sectional view of the structure of FIG. 7C-C.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
Referring to fig. 1, 2, 4 and 5, a pipe joint welding device comprises a rack assembly, a pipe joint transmission and guide groove and a material receiving mold, wherein the pipe joint transmission and guide groove is provided with a discharge port facing downwards, the material receiving mold is positioned below the discharge port, the material receiving mold comprises a front mold 21 and a rear mold 22, opposite sides of the front mold 21 and the rear mold 22 are respectively provided with a notch, the notch of the front mold 21 and the notch of the rear mold 22 jointly form a pipe joint avoiding groove 24, the top surface of the pipe joint avoiding groove 24 is open, the top surface of the front mold 21 is provided with a channel shielding surface, and the channel shielding surface (top surface) is used for shielding the discharge port of the pipe joint transmission and; the front mold 21 and the rear mold 22 are respectively arranged on the rack assembly in a transverse sliding mode.
A transverse linear guide rail 23 is arranged on the rack assembly, a front sliding plate 211 and a rear sliding plate 221 are respectively arranged on the transverse linear guide rail 23 in a sliding manner, a front mold 21 is arranged on the front sliding plate 211, and a rear mold 22 is arranged on the rear sliding plate 221; the rear sliding plate 221 is in transmission connection with the workpiece loading and unloading cylinder 3; a baffle plate 91 is arranged in front of the rack assembly corresponding to the front sliding plate 211, and a spring 92 is arranged between the baffle plate 91 and the front sliding plate 211.
The front end of the front sliding plate 211 is provided with a guide rod 93, the guide rod 93 penetrates through the baffle plate 91, and the spring 92 is sleeved outside the guide rod 93.
A first material ejecting rotating shaft 5 and a second material ejecting rotating shaft 4 are respectively arranged on the left side and the right side of the material receiving mould, the first material ejecting rotating shaft 5 and the second material ejecting rotating shaft 4 are respectively arranged on the rack assembly in a longitudinal linear sliding mode, the first material ejecting rotating shaft 5 and the second material ejecting rotating shaft 4 are concentrically arranged, and the first material ejecting rotating shaft 5 is in transmission connection with a driving motor 54; and a welding gun support 7 is arranged on the rack assembly, a welding gun 71 is arranged on the welding gun support 7, and the welding gun 71 is positioned above the material receiving mold.
And the centers of the opposite ends of the first ejection rotating shaft 5 and the second ejection rotating shaft 4 are respectively provided with a first pipe joint centering mandril 55 and a second pipe joint centering mandril 44, and the outer ends of the first pipe joint centering mandril 55 and the second pipe joint centering mandril 44 are respectively provided with a limiting step.
A first longitudinal linear guide rail 52 and a second longitudinal linear guide rail 42 are respectively arranged on the left side and the right side of the rack assembly corresponding to the material receiving mold, a first supporting plate 53 is longitudinally arranged on the first longitudinal linear guide rail 52 in a sliding manner, a first material ejecting rotating shaft 5 is rotatably arranged on the first supporting plate 53, the first supporting plate 53 is also provided with a driving motor 54, and the driving motor 54 is in transmission connection with the first material ejecting rotating shaft 5; the rack assembly is provided with a first material ejecting cylinder 51, and the first material ejecting cylinder 51 is used for pushing a first supporting plate 53.
And a second supporting plate 43 is longitudinally arranged on the second longitudinal linear guide rail 42 in a sliding manner, the second material ejecting rotating shaft 4 is rotatably arranged on the second supporting plate 43, a second material ejecting cylinder 41 is arranged on the rack assembly, and the second material ejecting cylinder 41 is used for pushing the second supporting plate 43.
And a limit stop 61 is arranged at the rear part of the rear die 22, a guide seat 62 is arranged on the rack assembly, the limit stop 61 is longitudinally arranged on the guide seat 62 in a sliding manner, and the guide seat is in transmission connection with the limit cylinder 6.
The pipe joint conveying guide groove comprises a first conveying guide groove 13, a second conveying guide groove 14 and a blanking elbow 15, one end of the first conveying guide groove 13 is used for being communicated with an output port of the first pipe joint sequencing vibration disc 11, one end of the second conveying guide groove 14 is used for being communicated with an output port of the second pipe joint sequencing vibration disc 12, the other end of the first conveying guide groove 13 and the other end of the second conveying guide groove 14 are mutually closed and connected with the blanking elbow 15, the blanking elbow 15 is provided with two channels, one ends of the two channels are respectively communicated with the first conveying guide groove 13 and the second conveying guide groove 14 one by one, and the other ends of the two channels face downwards. The pipe joint transmission and guide groove is V-shaped. The channel of the blanking elbow 15 is in a 7 shape, the lower end of the blanking elbow is provided with a receiving mould in a transverse sliding mode, and the top surface of the receiving mould is provided with a channel shielding surface and a pipe joint avoiding groove 24.
The rack assembly comprises a main rack 20 and an auxiliary rack 30, wherein a bottom plate 10 is arranged on the main rack 20, a material receiving mold is arranged on the bottom plate 10, the auxiliary rack 30 is arranged in front of the main rack 20, and a first pipe joint sequencing seismic disk 11 and a second pipe joint sequencing seismic disk 12 are arranged on the auxiliary rack 30.
As described with reference to fig. 3, the machined pipe joint 8 is formed by welding two workpieces, namely, a stainless steel outer thread through 81 and a stainless steel inner thread through 82, and the position 83 in fig. 3 is the welding position of the two workpieces. The first pipe joint sequencing vibration disc 11 is used for placing the stainless steel outer tooth through 81 and outputting the stainless steel outer tooth through 81 to the first transmission guide groove 13 after sequencing, and the second pipe joint sequencing vibration disc 12 is used for placing the stainless steel inner tooth through 82 and outputting the stainless steel inner tooth through 82 to the second transmission guide groove 14 after sequencing.
The working principle is as follows: in the initial state, the channel shielding surface of the front mold 21 blocks the lower port (feed opening) of the feed elbow 15, and the rear mold 22 is separated from the front mold 21 by a certain distance, which can refer to the state shown in fig. 5 and 6; referring to fig. 7 and 8, when welding is performed by charging, the workpiece loading and unloading cylinder 3 pushes the rear die 22 forward, the rear die 22 is pushed forward after contacting with the front die 21 in the forward process, the front die 21 is pushed to advance together until the pipe joint avoiding groove 24 is aligned with a feed opening, the stainless steel outer tooth through 81 and the stainless steel inner tooth through 82 respectively fall into the pipe joint avoiding groove 24, at this time, the spring 92 between the front die 21 and the baffle plate 91 is compressed to a certain degree, and the limit cylinder 6 drives the limit stop 61 to extend to the rear of the rear die 22; then, the workpiece loading and unloading cylinder 2 drives the rear die 22 to retreat, and simultaneously, the spring 92 releases the elasticity thereof, so that the front die 21 retreats along with the rear die 22 until the rear die 22 is blocked by the limit stop 61, and the workpiece loading and unloading cylinder 2 also stops; at the moment, the stainless steel outer tooth through 81 and the stainless steel inner tooth through 82 are located at positions opposite to the first pipe joint centering ejector rod 55 and the second pipe joint centering ejector rod 44, the first ejector cylinder 51 and the second ejector cylinder 41 are started, the first pipe joint centering ejector rod 55 and the second pipe joint centering ejector rod 44 are respectively inserted into the stainless steel outer tooth through 81 and the stainless steel inner tooth through 82, so that the stainless steel outer tooth through 81 and the stainless steel inner tooth through 82 are concentric, and opposite end faces of the stainless steel outer tooth through 81 and the stainless steel inner tooth through 82 are aligned and pressed; then, welding the contact position of the stainless steel outer tooth straight-through 81 and the stainless steel inner tooth straight-through 82 by using a welding gun 71, starting a driving motor 54 during welding, driving the stainless steel outer tooth straight-through 81 and the stainless steel inner tooth straight-through 82 to rotate simultaneously until the contact positions of the stainless steel outer tooth straight-through 81 and the stainless steel inner tooth straight-through 82 are completely welded and sealed, and completing welding processing of the pipe joint 8; finally, the first knock cylinder 51, the second knock cylinder 41, and the stopper cylinder 6 are reset, and then, the workpiece mounting and demounting cylinder 2 is further reset to retreat, so that the rear die 22 is spaced apart from the front die 21 (returning to the state shown in fig. 5 and 6), and the pipe joint 8 falls down from between the rear die 22 and the front die 21. In this embodiment, the main rack 20 is provided with a discharge channel below the position where the rear mold 22 and the front mold 21 are separated, the discharge channel leads to the rack assembly, a collecting tank is arranged outside the rack assembly, and the processed pipe joint 8 falls into the collecting tank along the discharge channel for recycling.
Claims (10)
1. The utility model provides a coupling welding equipment, includes rack assembly, coupling biography guide slot and connects the material mould, and coupling biography guide slot is equipped with the discharge gate, and the discharge gate is downward, connects the material mould to be located discharge gate below, its characterized in that: the material receiving die comprises a front die (21) and a rear die (22), wherein notches are respectively arranged on one opposite sides of the front die (21) and the rear die (22), the notch of the front die (21) and the notch of the rear die (22) jointly form a pipe joint avoiding groove (24), the top surface of the pipe joint avoiding groove (24) is open, and a channel shielding surface is arranged on the top surface of the front die (21) and used for shielding a discharge hole of a pipe joint transmission guide groove; the front die (21) and the rear die (22) are respectively arranged on the rack assembly in a transverse sliding mode.
2. The pipe joint welding apparatus according to claim 1, wherein: a transverse linear guide rail (23) is arranged on the rack assembly, a front sliding plate (211) and a rear sliding plate (221) are respectively arranged on the transverse linear guide rail (23) in a sliding manner, a front die (21) is arranged on the front sliding plate (211), and a rear die (22) is arranged on the rear sliding plate (221); the rear sliding plate (221) is in transmission connection with the workpiece loading and unloading cylinder (3); a baffle plate (91) is arranged in front of the rack assembly corresponding to the front sliding plate (211), and springs (92) (2) are arranged between the baffle plate (91) and the front sliding plate (211).
3. The pipe joint welding apparatus according to claim 2, wherein: the front end of the front sliding plate (211) is provided with a guide rod (93), the guide rod (93) penetrates through the baffle (91), and the spring (92) is sleeved outside the guide rod (93).
4. The pipe joint welding apparatus according to claim 1, wherein: a first material ejecting rotating shaft (5) and a second material ejecting rotating shaft (4) are respectively arranged on the left side and the right side of the material receiving mould, the first material ejecting rotating shaft (5) and the second material ejecting rotating shaft (4) are respectively arranged on the rack assembly in a longitudinal linear sliding mode, the first material ejecting rotating shaft (5) and the second material ejecting rotating shaft (4) are concentrically arranged, and the first material ejecting rotating shaft (5) or the second material ejecting rotating shaft (4) is in transmission connection with a driving motor (54); be equipped with welder support (7) on the rack assembly, welder support (7) are equipped with and set up welder (71), and welder (71) are located and connect material mould top.
5. The pipe joint welding apparatus according to claim 4, wherein: and the centers of the opposite ends of the first ejection rotating shaft (5) and the second ejection rotating shaft (4) are respectively provided with a first pipe joint centering mandril (55) and a second pipe joint centering mandril (44), and the outer ends of the first pipe joint centering mandril (55) and the second pipe joint centering mandril (44) are respectively provided with a limiting step.
6. The pipe joint welding apparatus according to claim 4, wherein: a first longitudinal linear guide rail (52) and a second longitudinal linear guide rail (42) are respectively arranged on the left side and the right side of the rack assembly corresponding to the material receiving mold, a first supporting plate (53) is longitudinally arranged on the first longitudinal linear guide rail (52) in a sliding manner, a first material ejecting rotating shaft (5) is rotatably arranged on the first supporting plate (53), a driving motor (54) is arranged on the first supporting plate (53), and the driving motor (54) is in transmission connection with the first material ejecting rotating shaft (5); the rack assembly is provided with a first material ejecting cylinder (51), and the first material ejecting cylinder (51) is used for pushing a first supporting plate (53).
7. The pipe joint welding apparatus according to claim 6, wherein: and a second supporting plate (43) is longitudinally arranged on the second longitudinal linear guide rail (42) in a sliding manner, a second ejection rotating shaft (4) is rotatably arranged on the second supporting plate (43), a second ejection cylinder (41) is arranged on the rack assembly, and the second ejection cylinder (41) is used for pushing the second supporting plate (43).
8. The pipe joint welding apparatus according to claim 1, wherein: and a limit stop is arranged at the rear part of the rear die (22), a guide seat is arranged on the rack assembly, the limit stop is longitudinally arranged on the guide seat in a sliding manner, and the guide seat is in transmission connection with a limit cylinder.
9. The pipe joint welding apparatus according to claim 1, wherein: the pipe joint conveying guide groove comprises a first conveying guide groove (13), a second conveying guide groove (14) and a blanking elbow (15), one end of the first conveying guide groove (13) is used for being communicated with an output port of a first pipe joint sequencing vibration disc (11), one end of the second conveying guide groove (14) is used for being communicated with an output port of a second pipe joint sequencing vibration disc (12), the other end of the first conveying guide groove (13) and the other end of the second conveying guide groove (14) are mutually closed and connected with the blanking elbow (15), and the blanking elbow (15) is provided with two channels.
10. The pipe joint welding apparatus according to claim 9, wherein: the rack assembly comprises a main rack (20) and an auxiliary rack (30), a bottom plate (10) is arranged on the main rack (20), a material receiving mold is arranged on the bottom plate (10), the auxiliary rack (30) is arranged in front of the main rack (20), and a first pipe joint sequencing shock disc (11) and a second pipe joint sequencing shock disc (12) are arranged on the auxiliary rack (30).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921121246 | 2019-07-17 | ||
| CN2019211212469 | 2019-07-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210731529U true CN210731529U (en) | 2020-06-12 |
Family
ID=70986173
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921859364.XU Expired - Fee Related CN210731516U (en) | 2019-07-17 | 2019-10-31 | Welding positioning structure of pipe joint welding equipment |
| CN201921859365.4U Expired - Fee Related CN210731529U (en) | 2019-07-17 | 2019-10-31 | Pipe joint welding equipment |
| CN201921860761.9U Active CN210731439U (en) | 2019-07-17 | 2019-10-31 | Feeding structure of pipe joint welding equipment |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921859364.XU Expired - Fee Related CN210731516U (en) | 2019-07-17 | 2019-10-31 | Welding positioning structure of pipe joint welding equipment |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921860761.9U Active CN210731439U (en) | 2019-07-17 | 2019-10-31 | Feeding structure of pipe joint welding equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN210731516U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111872627A (en) * | 2020-07-20 | 2020-11-03 | 常州市常蒸制冷科技有限公司 | Full-automatic copper aluminum pipe apparatus for producing |
-
2019
- 2019-10-31 CN CN201921859364.XU patent/CN210731516U/en not_active Expired - Fee Related
- 2019-10-31 CN CN201921859365.4U patent/CN210731529U/en not_active Expired - Fee Related
- 2019-10-31 CN CN201921860761.9U patent/CN210731439U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN210731439U (en) | 2020-06-12 |
| CN210731516U (en) | 2020-06-12 |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200612 Termination date: 20211031 |