CN216095637U - Pipe cooling device for continuous extrusion equipment - Google Patents
Pipe cooling device for continuous extrusion equipment Download PDFInfo
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- CN216095637U CN216095637U CN202121752843.9U CN202121752843U CN216095637U CN 216095637 U CN216095637 U CN 216095637U CN 202121752843 U CN202121752843 U CN 202121752843U CN 216095637 U CN216095637 U CN 216095637U
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Abstract
The utility model relates to a pipe cooling device for continuous extrusion equipment, which comprises a cooling pipe and a cooling groove. The cooling tube includes first sleeve pipe and second sleeve pipe, and first sleeve pipe and second sheathed tube both ends all are provided with the end plate, and first sleeve pipe is located the second sleeve pipe, has seted up a plurality of air vents on the first sheathed tube pipe wall. Circular through-holes are all opened on the end plate, and the central axes of the circular through-holes are collinear. The second sleeve is provided with an air inlet pipe and an air outlet pipe, the air inlet pipe is communicated with the inside of the second sleeve, and the air outlet pipe is communicated with the inside of the first sleeve. The guide grooves are formed in two opposite side plates of the cooling groove, the central axes of the guide grooves are collinear with the central axis of the circular through hole, and mixed liquid of cooling liquid and passivation liquid is placed in the cooling groove. The cooling time of the cooling tank is effectively shortened, the length of the cooling tank is further shortened, and the occupied area of a pipe production line is reduced.
Description
Technical Field
The utility model relates to the technical field of continuous extrusion, in particular to a pipe cooling device for continuous extrusion equipment.
Background
The continuous extrusion method is that cold rod blank is directly fed into a continuous extruder, the raw material rod blank is radially extruded and rubbed in a fixed groove, the raw material generates certain temperature rise under huge extrusion and friction force and reaches a recrystallization state, and the raw material rod blank is extruded from a special die through a cavity and is formed at one time. Because of the high temperature rise generated in the extrusion process, especially when high-strength metal or metal alloy is extruded, the extruded metal has high deformation resistance and large heat productivity, so that the temperature of the pipe produced by continuous extrusion is high, and the processes of quality detection, cutting, packaging and the like can be carried out after cooling. However, current continuous extrusion equipment adopts single basin to cool off shaping tubular product, because the cooling efficiency of single basin is low, consequently need set up longer cooling trough, has reached the effect with tubular product cooling to room temperature, and cooling trough area is big, needs great place just can install, and the practicality is poor, can't satisfy the actual production demand.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
In view of the above disadvantages and shortcomings of the prior art, the present invention provides a tube cooling device for a continuous extrusion apparatus, which solves the technical problems of large floor space and low cooling efficiency of the tube cooling device.
(II) technical scheme
In order to achieve the above object, a pipe cooling device for a continuous extrusion apparatus of the present invention comprises:
a cooling pipe and a cooling tank;
the cooling pipe comprises a first sleeve and a second sleeve, end plates are arranged at two ends of the first sleeve and the second sleeve, the first sleeve is positioned in the second sleeve, and a plurality of vent holes are formed in the wall of the first sleeve;
circular through holes are formed in the end plates, and the central axes of the circular through holes are collinear;
the second sleeve is provided with an air inlet pipe and an air outlet pipe, the air inlet pipe is communicated with the inside of the second sleeve, and the air outlet pipe is communicated with the inside of the first sleeve;
the cooling bath set up in the second sheathed tube on the end plate, the baffle box has all been seted up on two relative curb plates on the cooling bath, the axis of baffle box with the axis collineation of circular through-hole, can place the mixed liquid of coolant liquid and passivation liquid in the cooling bath.
Optionally, a first end plate is arranged at a first end of the first sleeve, and a second end plate is arranged at a second end of the first sleeve;
the first end plate is provided with a first circular through hole, and the second end plate is provided with a second circular through hole;
the circular through-hole of first circular through-hole with all detachably is provided with first guide stub bar on the circular through-hole of second, first guide hole has been seted up on the first guide stub bar, first circular through-hole with on the circular through-hole of second the axis of first guide hole all with the axis collineation of baffle box, the diameter of first guide hole is greater than the external diameter of tubular product.
Optionally, a third end plate is detachably arranged at the first end of the second sleeve, and a fourth end plate is detachably arranged at the second end of the second sleeve;
a third circular through hole is formed in the third end plate, and a fourth circular through hole is formed in the fourth end plate;
the third circular through hole and the fourth circular through hole are detachably provided with second material guide heads, second material guide holes are formed in the second material guide heads, the central axes of the second material guide holes on the third circular through hole and the fourth circular through hole are collinear with the central axis of the material guide groove, and the diameter of each second material guide hole is larger than the outer diameter of a pipe.
Optionally, the pipe cooling device for the continuous extrusion equipment further comprises a cooling coil, and a plurality of fins are arranged on the cooling coil;
the entry linkage air feeder of intake pipe, the export of intake pipe is located in the second sleeve, the entry of blast pipe is located in the first sleeve, the export of blast pipe with cooling coil's entry linkage.
Optionally, the pipe cooling device for the continuous extrusion equipment further comprises a fan, the fan is arranged on the cooling coil, and an air outlet of the fan faces the cooling coil.
Optionally, the gas supply device is a nitrogen generator, and the outlet of the cooling coil is connected with the gas inlet of the nitrogen generator.
Optionally, the array of vents is disposed on a wall of the first sleeve.
Optionally, the pipe cooling device for the continuous extrusion equipment further comprises a liquid storage tank, and the liquid storage tank is positioned above the cooling tank;
the liquid storage tank is connected with the cooling tank through a liquid inlet pipeline, and a valve is arranged on the liquid inlet pipeline.
Optionally, a liquid inlet hole is formed in the side wall of the cooling tank, an inlet of the liquid inlet hole is connected with the pipeline, and a ball float valve is arranged at an outlet of the liquid inlet hole.
Optionally, a plurality of rollers are arranged in the cooling tank, and rotation axes of the plurality of rollers are perpendicular to the central axis of the material guide groove.
(III) advantageous effects
The intake pipe is used for to the cooling tube input low temperature gaseous, and low temperature is gaseous to get into the accommodation space between second sleeve pipe and the first sleeve pipe earlier through the intake pipe, and then in getting into first sleeve pipe by the air vent on the first sleeve pipe, low temperature is gaseous to carry out heat exchange with high temperature tubular product and then by the blast pipe discharge, and the gaseous after the discharge can carry out further processing in order to realize reuse. A static pressure chamber is formed between the outer wall of the first sleeve and the inner wall of the second sleeve, and high-flow-rate and high-pressure gas uniformly radiates into the first sleeve from the vent holes through the static pressure chamber, so that the contact area and the contact time of the gas and the pipe are increased, and the cooling efficiency of the pipe is improved.
The guide chute is in butt joint with the circular through hole, and the pipe coming out of the cooling pipe directly enters the cooling chute through the guide chute, so that the contact time of the pipe and air is shortened. The cooling tank is internally provided with a mixed liquid of cooling liquid and passivation liquid, the pipe enters the cooling tank through one of the guide grooves, and is cooled by the cooling liquid and the passivation liquid, so that the on-line passivation of the pipe is realized, the subsequent passivation process is reduced, and the production efficiency of the pipe is improved.
The cooling time of the cooling tank is effectively shortened, the length of the cooling tank is further shortened, and the occupied area of a pipe production line is reduced.
Drawings
FIG. 1 is a schematic structural view of a pipe cooling device for a continuous extrusion apparatus according to the present invention;
FIG. 2 is a schematic view showing the internal structure of a cooling pipe of the pipe cooling device for the continuous extrusion apparatus according to the present invention;
FIG. 3 is a schematic structural view of a cooling tank of the pipe cooling device for the continuous extrusion apparatus of the present invention;
FIG. 4 is a connection diagram of the pipe cooling device for the continuous extrusion apparatus of the present invention.
[ description of reference ]
1: a cooling tube; 11: a first sleeve; 111: a vent hole;
12: a second sleeve; 121: an air inlet pipe; 122: an exhaust pipe;
13: an end plate; 131: a first end plate; 132: a second end plate; 133: a third end plate; 134: a fourth end plate; 135: a second material guiding head; 136: a second material guide hole;
2: a cooling tank; 21: a material guide chute;
3: a cooling coil; 4: a gas supply device; 5: a liquid storage tank; 6: a float valve;
100: a pipe.
Detailed Description
For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings. In which the terms "upper", "lower", etc. are used herein with reference to the orientation of fig. 1.
For a better understanding of the above-described technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the utility model are shown in the drawings, it should be understood that the utility model can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.
As shown in fig. 1, the present invention provides a pipe cooling device for a continuous extrusion apparatus, which includes a cooling pipe 1 and a cooling tank 2, wherein the temperature of a pipe 100 formed by continuous extrusion is very high, and the temperature of the pipe 100 is reduced to normal temperature after passing through the cooling pipe 1 and the cooling tank 2, so that subsequent flaw detection, code spraying and material receiving are facilitated, the cooling time is reduced, and the production efficiency of the pipe 100 is improved.
As shown in fig. 2, the cooling pipe 1 includes a first sleeve 11 and a second sleeve 12, the first sleeve 11 and the second sleeve 12 are both hollow round pipes, end plates 13 are disposed at two ends of the first sleeve 11 and the second sleeve 12, an outer diameter of the first sleeve 11 is smaller than an inner diameter of the second sleeve 12, the first sleeve 11 is disposed in the second sleeve 12 only through a plurality of connecting rods, there is no contact between pipe walls, and central axes of the first sleeve 11 and the second sleeve 12 are parallel, preferably collinear. The pipe wall of the first sleeve 11 is provided with a plurality of vent holes 111 distributed in an array manner, and when the pipe 100 is positioned in the first sleeve 11, low-temperature gas is input into the first sleeve 11 through the vent holes 111 to cool the pipe 100. Circular through holes are formed in the end plates 13 of the first sleeve 11 and the second sleeve 12, the central axis of each circular through hole in each end plate 13 is on the same straight line, and the pipe 100 penetrates through the cooling pipe 1 along the straight line so as to prevent the pipe 100 from deforming. An intake pipe 121 and an exhaust pipe 122 are installed on the outer surface of the second sleeve 12, the intake pipe 121 communicating with the inside of the second sleeve 12, and the exhaust pipe 122 communicating with the inside of the first sleeve 11. The intake pipe 121 is used for inputting low-temperature gas to the cooling pipe 1, the low-temperature gas enters the accommodating space between the second sleeve 12 and the first sleeve 11 through the intake pipe 121, and then enters the first sleeve 11 through the vent holes 111 on the first sleeve 11, the low-temperature gas and the high-temperature pipe 100 are subjected to heat exchange and then discharged through the exhaust pipe 122, and the discharged gas can be further processed to realize recycling. A static pressure chamber is formed between the outer wall of the first sleeve 11 and the inner wall of the second sleeve 12, and high-flow-rate and high-pressure gas uniformly radiates from the vent holes 111 into the first sleeve 11 through the static pressure chamber, so that the contact area and the contact time of the gas and the pipe 100 are increased, and the cooling efficiency of the pipe 100 is improved.
As shown in fig. 3, the cooling trough 2 is disposed on the end plate 13 of the second sleeve 12, the material guiding slots 21 are disposed on two opposite side plates of the cooling trough 2, the central axis of the material guiding slot 21 is collinear with the central axis of the circular through hole, because the cooling trough 2 is disposed on the end plate 13 of the second sleeve 12, one side plate of the cooling trough 2 on which the material guiding slot 21 is disposed on the end plate 13 of the second sleeve 12, the material guiding slot 21 is in butt joint with the circular through hole, the pipe 100 coming out of the cooling pipe 1 directly enters the cooling trough 2 through the material guiding slot 21, and the contact time between the pipe 100 and the air is reduced. The cooling tank 2 is filled with a mixed liquid of cooling liquid and passivation liquid, and the passivation liquid can form a surface state on the surface of the pipe 100, which can prevent the normal reaction of metal, improve the corrosion resistance of the pipe and improve the appearance of the product. The pipe 100 enters the cooling tank 2 through one of the material guide grooves 21, the pipe 100 is cooled by using the cooling liquid and the passivation liquid, and meanwhile, the online passivation of the pipe 100 is realized, the subsequent passivation process is reduced, and the production efficiency of the pipe 100 is improved. Carry out preliminary cooling to high temperature tubular product 100 through cooling tube 1 and handle the back and cool down by cooling tank 2 to tubular product 100 again, shortened cooling tank 2's cooling time effectively, and then shortened cooling tank 2's length, reduced the area of tubular product 100 production line.
As shown in fig. 2, a first end of the first sleeve 11 disposed inside the second sleeve 12 is provided with a first end plate 131, and a second end of the first sleeve 11 is provided with a second end plate 132. The first end plate 131 has a first circular through hole, and the second end plate 132 has a second circular through hole. A first material guiding head is detachably arranged on the first circular through hole, and a first material guiding head is also detachably arranged on the second circular through hole. Preferably, first circular through-hole and the circular through-hole of second are the internal thread hole, and first guide is overhead to be provided with the external screw thread, first circular through-hole and the circular through-hole of second all with first guide head threaded connection to all be provided with seal ring between first guide head and first circular through-hole and first guide head and the circular through-hole of second, in order to avoid the interior gas of first sleeve 11 to spill. First guide hole has been seted up on the first guide head, and the axis of the first guide hole on first circular through-hole and the circular through-hole of second all with the axis collineation of baffle box 21, the diameter of first guide hole is greater than the external diameter of tubular product 100 to guarantee that tubular product 100 can pass first guide hole. Preferably, the diameter of the first material guiding hole is slightly larger than the outer diameter of the pipe 100, the pipe 100 can pass through the first material guiding hole, the hole wall of the first material guiding hole is polished smooth, and the hole opening is set to be a chamfer so as not to scratch the outer surface of the pipe 100. The first material guiding head can be replaced according to the size and the shape of the pipe 100, the flexibility is good, and the pipe 100 with various specifications can be adapted.
As shown in fig. 2, unlike the first sleeve 11, the first end of the second sleeve 12 is detachably provided with a third end plate 133, the second end of the second sleeve 12 is detachably provided with a fourth end plate 134, the third end plate 133 and the first end of the second sleeve 12 are preferably in threaded connection and provided with a sealing gasket, and the fourth end plate 134 and the second end of the second sleeve 12 are preferably in threaded connection and provided with a sealing gasket, so as to facilitate quick assembly and disassembly, and simultaneously avoid gas in the second sleeve 12 from leaking out. After the third end plate 133 and the fourth end plate 134 are removed, the first material guiding head can be replaced, and the operation is convenient. Like the first sleeve 11, a third circular through hole is formed in the third end plate 133, and a fourth circular through hole is formed in the fourth end plate 134. The third circular through hole and the fourth circular through hole are detachably provided with a second material guide head 135, the second material guide hole 136 is formed in the second material guide head 135, the central axis of the second material guide hole 136 is collinear with the central axis of the material guide groove 21, the diameter of the second material guide hole 136 is larger than the outer diameter of the pipe 100, and the pipe 100 can penetrate through the first material guide hole, the second material guide hole 136 and the material guide groove 21 along a straight line. The second material guiding head 135 and the first material guiding head have the same shape and structure, and when the material guiding head needs to be replaced due to the change of the specification of the pipe 100, the first material guiding head and the second material guiding head 135 need to be replaced synchronously so as to match the pipe 100 with different specifications.
As shown in fig. 4, the pipe cooling device for the continuous extrusion apparatus further includes a cooling coil 3 and a fan, and the cooling coil 3 is provided with a plurality of fins. The fan sets up on cooling coil 3, and the air outlet of fan is towards cooling coil 3 for the gas cooling in the cooling coil 3. The inlet of the air inlet pipe 121 is connected with the air supply device 4, the outlet of the air inlet pipe 121 is positioned in the second sleeve 12, the inlet of the air outlet pipe 122 is positioned in the first sleeve 11, and the outlet of the air outlet pipe 122 is connected with the inlet of the cooling coil 3. Air feeder 4 is gaseous to the interior low temperature of second sleeve 12 of carrying, and low temperature is gaseous to get into first sleeve 11 via air vent 111 and becomes high temperature gas after carrying out heat exchange with tubular product 100 in, carries to cooling coil 3 in by blast pipe 122, and the air after the cooling process through cooling coil 3 can be connected air purification equipment and purified and handle the back and discharge, perhaps continues to carry to reuse in second sleeve 12.
In the preferred embodiment, the gas supply device 4 is a nitrogen generator, and the outlet of the cooling coil 3 is connected to the gas inlet of the nitrogen generator. The nitrogen generator produces nitrogen, the nitrogen is used for cooling the pipe 100, and the nitrogen is inert gas, so that the high-temperature pipe 100 is effectively protected.
As shown in fig. 4, the pipe cooling device for the continuous extrusion apparatus further includes a liquid storage tank 5, and the liquid storage tank 5 is located above the cooling bath 2. The liquid storage tank 5 is connected with the cooling tank 2 through a liquid inlet pipeline, and a valve is arranged on the liquid inlet pipeline. The liquid in the liquid storage tank 5 can directly flow into the cooling tank 2 through the action of gravity to supplement the cooling tank 2 with cooling liquid or passivation liquid. A plurality of liquid storage tanks 5 can be arranged, and different liquids or mixed liquid of cooling liquid and passivation liquid can be placed in each liquid storage tank 5. The feed liquor hole has been seted up on the lateral wall of cooling bath 2, the entry and the tube coupling in feed liquor hole, and the exit in feed liquor hole is provided with ball-cock assembly 6, whether lacks liquid in the cooling bath 2 through ball-cock assembly 6 auto-induction.
Preferably, a plurality of rollers are further disposed in the cooling trough 2, and the rotation axes of the plurality of rollers are all perpendicular to the central axis of the material guiding trough 21. When the pipe 100 passes through the cooling bath 2, the pipe 100 is supported by a plurality of rollers so that the pipe 100 is not deformed by its own weight.
According to the utility model, the cooling pipe 1 is used for carrying out primary cooling treatment on the high-temperature pipe 100 and then the cooling tank 2 is used for cooling the pipe 100, so that the cooling time of the cooling tank 2 is effectively shortened, the length of the cooling tank 2 is further shortened, and the floor area of a production line of the pipe 100 is reduced.
In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; either as communication within the two elements or as an interactive relationship of the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, a first feature may be "on" or "under" a second feature, and the first and second features may be in direct contact, or the first and second features may be in indirect contact via an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lower level than the second feature.
In the description herein, the description of the terms "one embodiment," "some embodiments," "an embodiment," "an example," "a specific example" or "some examples" or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are illustrative and not restrictive, and that those skilled in the art may make changes, modifications, substitutions and alterations to the above embodiments without departing from the scope of the present invention.
Claims (10)
1. A pipe cooling device for continuous extrusion equipment is characterized by comprising a cooling pipe and a cooling tank;
the cooling pipe comprises a first sleeve and a second sleeve, end plates are arranged at two ends of the first sleeve and the second sleeve, the first sleeve is positioned in the second sleeve, and a plurality of vent holes are formed in the wall of the first sleeve;
circular through holes are formed in the end plates, and the central axes of the circular through holes are collinear;
the second sleeve is provided with an air inlet pipe and an air outlet pipe, the air inlet pipe is communicated with the inside of the second sleeve, and the air outlet pipe is communicated with the inside of the first sleeve;
the cooling bath set up in the second sheathed tube on the end plate, the baffle box has all been seted up on two relative curb plates on the cooling bath, the axis of baffle box with the axis collineation of circular through-hole, can place the mixed liquid of coolant liquid and passivation liquid in the cooling bath.
2. The tube cooling device for a continuous extrusion apparatus of claim 1, wherein the first end of the first sleeve is provided with a first end plate and the second end of the first sleeve is provided with a second end plate;
the first end plate is provided with a first circular through hole, and the second end plate is provided with a second circular through hole;
the circular through-hole of first circular through-hole with all detachably is provided with first guide stub bar on the circular through-hole of second, first guide hole has been seted up on the first guide stub bar, first circular through-hole with on the circular through-hole of second the axis of first guide hole all with the axis collineation of baffle box, the diameter of first guide hole is greater than the external diameter of tubular product.
3. The tube cooling device for a continuous extrusion apparatus of claim 2, wherein the first end of the second sleeve is detachably provided with a third end plate, and the second end of the second sleeve is detachably provided with a fourth end plate;
a third circular through hole is formed in the third end plate, and a fourth circular through hole is formed in the fourth end plate;
the third circular through hole and the fourth circular through hole are detachably provided with second material guide heads, second material guide holes are formed in the second material guide heads, the central axes of the second material guide holes on the third circular through hole and the fourth circular through hole are collinear with the central axis of the material guide groove, and the diameter of each second material guide hole is larger than the outer diameter of a pipe.
4. The pipe cooling device for the continuous extrusion apparatus as set forth in any one of claims 1 to 3, wherein the pipe cooling device for the continuous extrusion apparatus further comprises a cooling coil on which a plurality of fins are provided;
the entry linkage air feeder of intake pipe, the export of intake pipe is located in the second sleeve, the entry of blast pipe is located in the first sleeve, the export of blast pipe with cooling coil's entry linkage.
5. The pipe cooling device for continuous extrusion apparatus of claim 4, further comprising a fan disposed on the cooling coil, the fan having an outlet facing the cooling coil.
6. The pipe cooling device for the continuous extrusion apparatus as set forth in claim 4, wherein the gas supply device is a nitrogen generator, and the outlet of the cooling coil is connected to the gas inlet of the nitrogen generator.
7. The pipe cooling device for the continuous extrusion apparatus as set forth in any one of claims 1 to 3, wherein the vent hole array is provided on the wall of the first sleeve.
8. The pipe cooling device for the continuous extrusion apparatus according to any one of claims 1 to 3, further comprising a tank above the cooling tank;
the liquid storage tank is connected with the cooling tank through a liquid inlet pipeline, and a valve is arranged on the liquid inlet pipeline.
9. The pipe cooling device for the continuous extrusion apparatus as claimed in claim 8, wherein a liquid inlet hole is formed on a side wall of the cooling tank, an inlet of the liquid inlet hole is connected to the pipeline, and an outlet of the liquid inlet hole is provided with a ball float valve.
10. The pipe cooling device for the continuous extrusion apparatus as set forth in any one of claims 1 to 3, wherein a plurality of rollers are provided in the cooling bath, and rotation axes of the plurality of rollers are perpendicular to the central axis of the material guide chute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121752843.9U CN216095637U (en) | 2021-07-29 | 2021-07-29 | Pipe cooling device for continuous extrusion equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121752843.9U CN216095637U (en) | 2021-07-29 | 2021-07-29 | Pipe cooling device for continuous extrusion equipment |
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| Publication Number | Publication Date |
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| CN216095637U true CN216095637U (en) | 2022-03-22 |
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| CN202121752843.9U Active CN216095637U (en) | 2021-07-29 | 2021-07-29 | Pipe cooling device for continuous extrusion equipment |
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| CN (1) | CN216095637U (en) |
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- 2021-07-29 CN CN202121752843.9U patent/CN216095637U/en active Active
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Denomination of utility model: A pipe cooling device for continuous extrusion equipment Effective date of registration: 20230426 Granted publication date: 20220322 Pledgee: Hunan Xingsha Rural Commercial Bank Co.,Ltd. Ansha sub branch Pledgor: HUNAN HENGJIA NEW MATERIAL TECHNOLOGY CO.,LTD. Registration number: Y2023980039214 |