CN118253581B - Novel flat copper pipe rotary rolling device and production method - Google Patents
Novel flat copper pipe rotary rolling device and production method Download PDFInfo
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- CN118253581B CN118253581B CN202410684333.4A CN202410684333A CN118253581B CN 118253581 B CN118253581 B CN 118253581B CN 202410684333 A CN202410684333 A CN 202410684333A CN 118253581 B CN118253581 B CN 118253581B
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 134
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 134
- 239000010949 copper Substances 0.000 title claims abstract description 134
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 31
- 238000005096 rolling process Methods 0.000 title claims abstract description 28
- 238000001125 extrusion Methods 0.000 claims abstract description 90
- 230000009471 action Effects 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 34
- 239000002994 raw material Substances 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000008569 process Effects 0.000 description 30
- 238000012545 processing Methods 0.000 description 17
- 238000003825 pressing Methods 0.000 description 11
- 230000008859 change Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
- B21B17/14—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling without mandrel, e.g. stretch-reducing mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/02—Shape or construction of rolls
- B21B27/024—Rolls for bars, rods, rounds, tubes, wire or the like
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Metal Extraction Processes (AREA)
Abstract
The invention relates to the technical field of copper pipe production, in particular to a novel flat copper pipe rotary rolling device and a production method, wherein the novel flat copper pipe rotary rolling device comprises the following steps: a power device for providing rotational power; the wheel disc is connected with the power equipment and rotates under the action of the power equipment, and the copper pipe is spirally coiled for a plurality of layers; the extrusion equipment comprises an extrusion device and a positioning device; the extrusion device is provided with a plurality of layers of extrusion rollers which are driven and independently rotate in parallel along the axis direction of the wheel disc, and each layer of extrusion rollers corresponds to one layer of copper pipe which is coiled; an extrusion gap for the copper pipe is formed between the outer surface of the extrusion roller and the outer surface of the wheel disc, and the distance between each layer of extrusion gap is gradually reduced in the axial direction of the wheel disc so as to realize gradual extrusion of the copper pipe; the positioning device is connected with the extrusion device and is used for keeping the extrusion gap. According to the invention, the step of extrusion is concentrated on the disc through the cooperation of the wheel disc and the extrusion device, the horizontal production line is changed into the spiral production line, the space in the vertical direction is utilized, and the size of the production space is greatly reduced.
Description
Technical Field
The invention relates to the field of copper pipe production, in particular to a novel flat copper pipe rotary rolling device and a production method.
Background
Flat copper tubes are a special shape of copper tubes for electrical conduction and heat dissipation, the special cross section of which gives flat copper tubes a larger surface area than traditional round copper tubes, which makes them more excellent in heat conduction and heat dissipation.
In the electrical field, flat copper tubes are often used in high power devices such as transformers, wherein flat copper tubes are used as conductors to connect windings and other electrical components, ensuring smooth current transmission. At the same time, they are also designed as part of a radiator, which keeps the temperature of the device within a safe range by conducting heat to the surface and dissipating it by means of air convection. With the continuous increase of the power of electrical equipment and the improvement of heat dissipation requirements, the flat copper pipes are widely applied in modern engineering, become an indispensable key component in many high-performance electrical equipment, and provide important support for the stable operation and safety of the equipment.
Flat copper tubes are typically manufactured by extrusion, rolling, which techniques ensure the accuracy of the shape and dimensions of the copper tube and enable the copper material to have the desired electrical and thermal conductivity properties. However, the means of manufacturing flat copper tubes today all require a long distance, and the final cross-sectional dimensions are obtained by multiple shaping in the transport direction, which wastes a great deal of space.
Disclosure of Invention
In view of the technical problems, the invention provides a novel flat copper pipe rotary rolling device and a production method, and the requirement on production space is reduced by adopting a spiral step-by-step extrusion method.
According to a first aspect of the present invention, there is provided a novel flat copper tube production device comprising:
a power device for providing rotational power;
the wheel disc is connected with the power equipment and rotates under the action of the power equipment, and the copper pipe is spirally wound by a plurality of layers;
The extrusion equipment comprises an extrusion device and a positioning device;
The extrusion device is provided with a plurality of layers of passive and independently rotating extrusion rollers in parallel along the axial direction of the wheel disc, and each layer of extrusion rollers corresponds to one layer of copper pipe which is coiled; an extrusion gap for the copper pipe is formed between the outer surface of the extrusion roller and the outer surface of the wheel disc, and the distance between each layer of extrusion gap is gradually reduced in the axial direction of the wheel disc so as to realize gradual extrusion of the copper pipe;
The positioning device is connected with the extrusion device and used for maintaining the extrusion gap.
In some embodiments of the invention, a limiting structure is arranged on the side surface of the wheel disc, and the limiting structure limits the position of each layer of copper pipe in the axial direction of the wheel disc.
In some embodiments of the invention, the spacing structure is a helical spacing band that is raised relative to the wheel disc surface.
In some embodiments of the invention, the limit structure is a helical limit groove recessed relative to the wheel disc surface.
In some embodiments of the present invention, each squeeze roller is rotatably connected to the same shaft body through an independent bearing, and the positioning device applies force to each squeeze roller simultaneously through fixed connection to two ends of the shaft body.
In some embodiments of the invention, each squeeze roller is connected to a separate positioning device by a separate shaft.
In some embodiments of the present invention, the self-lubricating adjustment layer further comprises a belt-shaped self-lubricating adjustment layer, wherein the self-lubricating adjustment layer is wound on the outer surface of the wheel disc, is embedded between the limiting structures, and has a side wall attached to the side wall of the limiting structure;
The self-lubricating adjusting layer supports the copper pipe through the outer surface.
In some embodiments of the present invention, the self-lubricating adjustment layer includes an inner layer and an outer layer, and the surfaces of the inner layer and the outer layer facing each other are provided with a plurality of guide belts which are parallel and parallel at equal intervals, and each guide belt is distributed along the length direction of the self-lubricating adjustment layer;
The guide belts on the inner layer and the outer layer are staggered and are fit and embedded into gaps between adjacent guide belts of the other side.
In some embodiments of the invention, the inner and outer layers are the same structure.
According to a second aspect of the invention, there is also provided a novel flat copper pipe rotary rolling production method, comprising the steps of:
Coiling the copper pipe raw material to be extruded on the outer surface of the wheel disc according to a set screw pitch;
The size and the initial position of each extrusion roller are adjusted to obtain each set extrusion gap, and the extrusion gap is kept unchanged through the positioning device;
And starting the wheel disc according to the uniform speed transmission speed of the copper pipe raw material, and controlling the edge linear speed of the wheel disc to be equal to the linear speed of the copper pipe raw material transmission.
The beneficial effects of the invention are as follows: according to the invention, a plurality of layers of passive and independently rotating extrusion rollers are arranged in parallel along the axis direction of the wheel disc through the extrusion device, and each layer of extrusion rollers corresponds to one layer of copper pipe which is coiled; an extrusion gap for the copper pipe is formed between the outer surface of the extrusion roller and the outer surface of the wheel disc, and the distance between each layer of extrusion gap is gradually reduced in the axial direction of the wheel disc so as to realize gradual extrusion of the copper pipe; the production mode has the advantages that the extrusion step is concentrated on the disc, the horizontal production line is changed into the spiral production line, the space in the vertical direction is utilized, and the occupied size of the production space is greatly reduced; the same number of extrusion equipment can be processed in a smaller space, so that the utilization efficiency of the production space is improved; the layout of the production line is more flexible and changeable, and the production line can better adapt to production requirements of different scales and types.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.
FIG. 1 is a schematic diagram of a novel flat copper pipe rotary rolling device in an embodiment of the invention;
FIG. 2 is a top view of a wheel disc and power equipment in a novel flat copper pipe rotary rolling device in an embodiment of the invention;
FIG. 3 is a partial cross-sectional view taken along the direction A-A in FIG. 2 of a novel flat copper tube rotary rolling apparatus in accordance with an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an extrusion device in a novel flat copper pipe rotary rolling device in an embodiment of the invention;
fig. 5 is a front view of an extrusion device in a novel flat copper pipe rotary rolling device in an embodiment of the invention;
FIG. 6 is a cross-sectional view taken along line B-B in FIG. 5 of a novel flat copper tube rotary rolling apparatus in accordance with an embodiment of the present invention;
FIG. 7 is a schematic diagram of a spiral limit belt and a self-lubricating adjustment layer in a wheel disc of a novel flat copper pipe rotary rolling device in an embodiment of the invention;
Fig. 8 is an enlarged view of the structure at C in fig. 7 in the novel flat copper pipe rotary rolling apparatus according to the embodiment of the present invention;
Fig. 9 is a schematic structural diagram of a self-lubricating adjusting layer in a novel flat copper pipe rotary rolling device in an embodiment of the invention;
fig. 10 is a schematic diagram of layer-by-layer extrusion molding of a flat copper tube in a novel flat copper tube rotary rolling device in an embodiment of the invention;
fig. 11 is a flow chart of steps of a novel spiral rolling production method for flat copper pipes in an embodiment of the invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The novel flat copper pipe rotary rolling device as shown in fig. 1 to 10 comprises: a power device 1, a wheel disc 2 and an extrusion device 3; as shown in fig. 1 and 2 in particular, the power plant 1 provides rotational power to the whole device so that the wheel disc 2 can rotate; the linear speed of the copper pipe in the extrusion process can be adjusted by controlling the rotation speed so as to meet the production requirement and ensure the stability of the product quality, which is important for adjusting the processing parameters in the extrusion process. In embodiments of the present invention, the power device may be an electric motor, a hydraulic drive system, a turbine machine, or the like.
The wheel disc 2 shown in fig. 2 and 7 is connected with the power equipment 1, rotates under the action of the power equipment 1, and the copper pipe is spirally wound on a plurality of layers by the wheel disc 2; as shown in fig. 1 and 2, the wheel disc 2 is a part connected with the power equipment 1, rotates under the action of the power equipment 1, and provides a stable rotating platform, so that the extrusion equipment 3 can extrude the copper pipe step by step according to design requirements. As shown, the surface of the wheel disc 2 is the coiled position of the copper tube. During production, the copper pipe raw material to be extruded is coiled on the outer surface of the wheel disc 2 according to a set screw pitch, and the coiling mode facilitates the extrusion equipment 3 to process the copper pipe effectively. In the embodiment of the invention, the wheel disc 2 can be a wheel disc 2 with a convex structure, a wheel disc 2 with a groove structure and the like; the wheel disc 2 may also incorporate additional functions such as sensors, cooling or lubrication systems etc. which may be used to monitor parameters during the machining process, to improve the machining efficiency or to protect equipment.
The pressing apparatus 3 as shown in fig. 4 to 6 includes a pressing device 31 and a positioning device 32;
As shown in fig. 10, the extrusion device 31 is provided with a plurality of layers of extrusion rollers 31a which are driven and independently rotated in parallel along the axial direction of the wheel disc 2, and each layer of extrusion rollers 31a corresponds to one layer of copper pipe which is coiled; an extrusion gap for the copper pipe is formed between the outer surface of the extrusion roller 31a and the outer surface of the wheel disc 2, and the distance between each layer of extrusion gap is gradually reduced in the axial direction of the wheel disc 2 so as to realize gradual extrusion of the copper pipe; the extrusion device 31 processes the copper pipe through the extrusion roller 31a to change the shape and the size of the copper pipe; by applying proper pressure, continuous extrusion force on the copper pipe is maintained, which is helpful to ensure stability and consistency of extrusion process, thereby ensuring processing quality and form precision of the product.
As shown in fig. 4 to 6, a positioning device 32 is connected to the pressing device 31 for adjusting and maintaining the pressing gap, which serves to ensure that the pressing roller 31a maintains a correct position during the processing so that the pressing gap gradually decreases in a desired manner. The positioning device 32 is usually a reliable mechanical structure or system to ensure accurate positioning and stability during the extrusion process, and directly affects the effect of the extrusion process and the morphology of the copper tube, and by adjusting the extrusion gap, accurate control of the copper tube processing process can be achieved. The positioning device 32 is generally adjustable to accommodate different process requirements and product specifications. When the positioning device 32 is of a mechanical structure, the position relative to the wheel disc 2 can be determined by means of mechanical positioning, and the structural form as shown in fig. 4 can be positioned directly by means of bolting or the like, so that the pressing device 31 fixed thereon is indirectly positioned; or when the positioning device 32 is a system, more combinations of a hydraulic system and a frame structure are adopted, specifically, the extrusion device 31 is installed through the frame structure, and extrusion force is provided for the frame structure through the hydraulic system, so that the copper pipe clamped in the middle is extruded and shaped.
As shown in fig. 3, in some embodiments of the present invention, a limit structure 21 is provided on the side of the wheel disc 2, and the limit structure 21 limits the position of each layer of copper pipe in the axial direction of the wheel disc 2, which helps to ensure that the copper pipe maintains a correct position during extrusion, prevents the copper pipe from deviating from a track or moving to a position that should not be reached, so that the extrusion device 3 can accurately process the copper pipe. The limiting structure 21 can ensure the safety of the device in the working process, can prevent the copper pipe from causing equipment failure or working accidents due to position deviation or other reasons, and ensures the safety of operators. Through the effect of limit structure 21, can reduce the time of equipment adjustment and calibration, improve production efficiency, limit structure 21 can ensure that the device is in normal operating range, has reduced down time and the production interruption because of the position offset leads to. It should be noted that the limit structure 21 may be a spiral limit band 21a protruding from the surface of the wheel disc 2, a spiral limit groove recessed from the surface of the wheel disc 2, or other structures with the same function.
In some embodiments of the invention, the spacing structure 21 is a helical spacing band 21a that is raised relative to the surface of the wheel disc 2, as shown in fig. 3. The raised helical retainer strip 21a may provide positional restraint of the copper tube in the direction of the wheel disc 2 axis. The convex structure of the copper pipe can be contacted with the surface of the copper pipe, so that the copper pipe is prevented from deviating from a track or moving to a position which cannot be reached in the extrusion process, the accuracy and the stability of the processing process are ensured, and the damage to the outer surface of the copper pipe is avoided. The raised spiral limit band 21a forms a guiding structure on the surface of the wheel disc 2, which can help guide the copper pipe to move along a preset track in the extrusion process, and this helps to ensure that the copper pipe is uniformly extruded, and avoid uneven or bad processing caused by position deviation.
In some embodiments of the present invention, the limiting structure 21 may also be a spiral limiting groove recessed relative to the surface of the wheel disc 2. The concave spiral limit groove can provide the position limitation of the copper pipe in the axial direction of the wheel disc 2. The outer surface of the copper pipe can be matched with the concave part of the limiting groove, so that the copper pipe is kept at a correct position in the extrusion process, the copper pipe is prevented from deviating from a track or moving to a position which is not reached, and the accuracy and the stability of the processing process are ensured.
As shown in fig. 4 to 6, in some embodiments of the present invention, each squeeze roller 31a is rotatably connected to the same shaft 34 through an independent bearing 32a, and the positioning device 32 is fixedly connected to two ends of the shaft 34 to apply force to each squeeze roller 31a simultaneously. The bearing 32a can reduce friction between the pressing roller 31a and the shaft body 34 so that it rotates more smoothly, and in the case of high-speed rotation, the reduction of friction contributes to reduction of energy loss, and can extend the service life of the pressing apparatus 3. The bearing 32a, as a connecting member between the pressing roller 31a and the shaft body, can bear large radial and axial loads, has high wear resistance and impact resistance, and can improve the reliability and stability of the pressing apparatus 3, and reduce maintenance cost and failure rate. The positioning means 32 applies a force to the squeeze rolls 31a simultaneously, ensuring that each squeeze roll 31a is subjected to a similar force. The uniform force applied to the squeeze roller 31a by the positioning device 32 can ensure the stability and consistency of the copper tube in the squeezing process, which is helpful for keeping the uniform processing of the copper tube in the squeezing process, avoiding the deformation or bad processing of the copper tube caused by the non-uniform squeezing force, and also helping to improve the processing precision and ensure that the processed copper tube meets the expected shape and size requirements.
In some embodiments of the present invention, each squeeze roller 31a is coupled to a separate positioning device 32 via a separate shaft 34. Each squeeze roller 31a is connected with an independent positioning device 32 through an independent shaft body 34, so that each squeeze roller 31a can be independently positioned and controlled, and the position of each squeeze roller 31a can be individually adjusted according to processing requirements by the design, so that accurate positioning and stable movement of a copper pipe in the processing process are ensured. The independent positioning device 32 can ensure that each squeeze roller 31a will not interfere with each other during the processing, and even if one squeeze roller 31a needs to adjust its position or stop working, the other squeeze rollers 31a can still maintain a stable processing state without being affected, thereby ensuring the continuity and stability of the processing.
Accurate control of the copper tube processing process can be achieved by accurately controlling each squeeze roller 31a through an independent positioning device 32. Each squeeze roller 31a is capable of squeezing the copper tube in a desired manner, ensuring the precision and consistency of the shape and dimensions of the processed copper tube. The independent positioning device 32 is designed to facilitate the adjustment and maintenance of the squeeze rolls 31a, and if one of the positioning devices 32 needs to be adjusted or maintained, the operation can be performed independently without affecting the processing procedures of other squeeze rolls 31a, thereby simplifying the adjustment and maintenance procedures of the device.
As shown in fig. 7 and 8, in some embodiments of the present application, the self-lubricating adjustment layer 22 is further provided in a belt shape, is wound around the outer surface of the wheel disc 2, is embedded between the limiting structures 21, and has a side wall attached to the side wall of the limiting structure 21; the self-lubricating adjustment layer 22 supports the copper tube by the outer surface. Through the arrangement of the self-lubricating adjusting layer 22, the friction force born by the copper pipe in the deformation process is effectively reduced, and the forming quality of the surface is effectively ensured. Specifically, in a few cases during deformation, the copper tube collides with the limiting structure 21, and in the extrusion process, the thickness is reduced, the width is increased, so that relative motion friction is generated on the surface of the copper tube relative to the surface of the wheel disc 2, and the friction can have a certain influence on the quality of the surface of the copper tube. In the above preferred embodiment, the self-lubricating adjustment layer 22 can achieve a lubricating effect in the case that the copper tube surface is deformed by contact with the self-lubricating material, so that the surface is effectively prevented from being damaged by contact with hard objects such as metal. In the implementation process, the more common self-lubricating material can be polytetrafluoroethylene, and of course, the material is a specific mode in various choices, and other materials such as ultra-high molecular weight polyethylene and the like can be applied to the application under the condition of meeting the use requirement.
In the actual production process, because the copper pipe is blocked by the limiting structure 21, the gap between the limiting structures 21 is larger than the width of the copper pipe before deformation and the width of the copper pipe after deformation, based on the fact that in the production process, the copper pipe is inevitably slightly changed along the axial direction of the wheel disc 2 due to the relative surplus gap in the continuous conveying process, and the change can possibly cause slight fluctuation of local tension of the copper pipe, in order to buffer the fluctuation, as a preferable mode of the embodiment, as shown in fig. 9, in some embodiments of the invention, the self-lubricating adjusting layer 22 comprises an inner layer 22a and an outer layer 22b, a plurality of guide belts 22c which are parallel and equidistant are arranged on the surfaces of the inner layer 22a and the outer layer 22b facing each other, and each guide belt 22c is distributed along the length direction of the self-lubricating adjusting layer 22, and in the embodiment, the length direction can be understood as the natural extending direction of the self-lubricating adjusting layer 22 in the unused state, the self-lubricating adjusting layer can be rolled along the length direction and cut according to the set length requirement; the guide strips 22c on the inner layer 22a and the outer layer 22b are offset and fit into the gaps between adjacent guide strips 22c of each other. In some embodiments of the present invention, the inner layer 22a and the outer layer 22b are the same structure. By arranging the inner layer 22a and the outer layer 22b, tension fluctuation of the copper pipe caused by position fluctuation can be buffered through slight change of relative positions between the two layers, namely, the inner layer 22a and/or the outer layer 22b changes to a state capable of keeping the tension relatively consistent under the condition that the tension changes through proper deformation of the inner layer 22a and/or the outer layer 22b and relative movement between the inner layer and the outer layer, and after fluctuation occurs, the copper pipe can be reset through proper elasticity of the inner layer 22a and the outer layer 22b, and of course, the hardness of the inner layer and the outer layer 22b needs to be effectively controlled, so that the stability of copper pipe molding is ensured. In the actual working process, the inner layer 22a and the outer layer 22b are blocked by the side wall of the limiting structure 21, so that the deformation and the relative motion degree are controllable, and the relative stability of the shape can be maintained.
As shown in fig. 9, in some embodiments of the invention, the inner layer 22a and the outer layer 22b are the same structure. In the above preferred embodiment, the arrangement of the guide belt 22c reinforces the structures of the inner layer 22a and the outer layer 22b, and guides the relative position change of the inner layer 22a and the outer layer 22b, so that the problem of reduced service lives of the inner layer 22a and the outer layer 22b due to the movement complexity is avoided. To achieve versatility of the inner layer 22a and the outer layer 22b, as a preference of the above embodiment:
According to a second aspect of the present invention, there is also provided a novel flat copper pipe rotary rolling production method, as shown in fig. 11, comprising the steps of:
S10: coiling the copper pipe raw material to be extruded on the outer surface of the wheel disc 2 according to a set screw pitch;
s20: by adjusting the size and initial position of each squeeze roller 31a, each squeeze gap is set, and the squeeze gap is kept unchanged by the positioning device 32;
S30: and starting the wheel disc 2 according to the uniform conveying speed of the copper pipe raw material, and controlling the edge linear speed of the wheel disc 2 to be equal to the linear speed of the copper pipe raw material conveying.
Firstly, the copper pipe raw material to be extruded is coiled on the outer surface of the wheel disc 2 according to a set pitch, and the initial position and arrangement of the copper pipe in the extrusion process are ensured.
Secondly, by adjusting the size and initial position of each squeeze roller 31a, each squeeze gap is set, and the squeeze gap is kept unchanged by the positioning device 32; the operator needs to adjust the initial position of each squeeze roller 31a to match the initial position and geometry of the copper tube stock. This involves ensuring that the initial distance and angle between each squeeze roller 31a and the copper tube meet design requirements to ensure accuracy and consistency of the squeeze process; once the adjustment of the size and initial position of the squeeze rolls 31a is completed, the operator needs to set the squeeze gap between each squeeze roll 31a and the copper tube according to the design specification, which is a key parameter in the squeeze process, which determines the degree of compression and final shape of the copper tube. At the same time, the positioning device 32 needs to be adjusted and stabilized to ensure stability of the extrusion gap during extrusion.
Finally, starting the wheel disc 2 according to the uniform conveying speed of the copper pipe raw material, and controlling the edge linear speed of the wheel disc 2 to be equal to the linear speed of the copper pipe raw material conveying; in the step, the copper pipe can be prevented from being changed in tension as much as possible in the extrusion process, or the tension change is controlled in a very small range, more importantly, the copper pipe is only subjected to uniform extrusion force, and the wall thickness of the pipe body is not changed outside a set range in the deformation process.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. Novel flat copper pipe is rolled soon device, its characterized in that includes:
a power device for providing rotational power;
the wheel disc is connected with the power equipment and rotates under the action of the power equipment, and the copper pipe is spirally wound by a plurality of layers;
The extrusion equipment comprises an extrusion device and a positioning device;
The extrusion device is provided with a plurality of layers of passive and independently rotating extrusion rollers in parallel along the axial direction of the wheel disc, and each layer of extrusion rollers corresponds to one layer of copper pipe which is coiled; an extrusion gap for the copper pipe is formed between the outer surface of the extrusion roller and the outer surface of the wheel disc, and the distance between each layer of extrusion gap is gradually reduced in the axial direction of the wheel disc so as to realize gradual extrusion of the copper pipe;
the positioning device is connected with the extrusion device and is used for keeping the extrusion gap;
A limiting structure is arranged on the side surface of the wheel disc, and limits the positions of the copper pipes of each layer in the axial direction of the wheel disc;
the self-lubricating adjusting layer is wound on the outer surface of the wheel disc, embedded between the limiting structures and attached to the side walls of the limiting structures;
the self-lubricating adjusting layer supports the copper pipe through the outer surface;
The self-lubricating adjusting layer comprises an inner layer and an outer layer, wherein the surfaces of the inner layer and the outer layer facing each other are provided with a plurality of guide belts which are parallel and parallel at equal intervals, and each guide belt is distributed along the length direction of the self-lubricating adjusting layer;
The guide belts on the inner layer and the outer layer are staggered and are fit and embedded into gaps between adjacent guide belts of the other side.
2. The novel flat copper pipe rotary rolling device according to claim 1, wherein the limiting structure is a spiral limiting belt protruding relative to the surface of the wheel disc.
3. The novel flat copper pipe rotary rolling device according to claim 1, wherein the limiting structure is a spiral limiting groove recessed relative to the surface of the wheel disc.
4. The novel flat copper pipe rotary rolling device according to claim 1, wherein each extrusion roller is rotatably connected with the same shaft body through an independent bearing, and the positioning device is fixedly connected with two ends of the shaft body to apply force to each extrusion roller simultaneously.
5. The novel flat copper pipe rotary rolling device according to claim 1, wherein each extrusion roller is connected with the independent positioning device through an independent shaft body.
6. The novel flat copper pipe rotary rolling device according to claim 1, wherein the inner layer and the outer layer are of the same structure.
7. A novel flat copper pipe rotary rolling production method, which is characterized in that a novel flat copper pipe rotary rolling device as claimed in any one of claims 1 to 6 is used, and the method comprises the following steps:
Coiling the copper pipe raw material to be extruded on the outer surface of the wheel disc according to a set screw pitch;
The size and the initial position of each extrusion roller are adjusted to obtain each set extrusion gap, and the extrusion gap is kept unchanged through the positioning device;
And starting the wheel disc according to the uniform speed transmission speed of the copper pipe raw material, and controlling the edge linear speed of the wheel disc to be equal to the linear speed of the copper pipe raw material transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410684333.4A CN118253581B (en) | 2024-05-30 | 2024-05-30 | Novel flat copper pipe rotary rolling device and production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410684333.4A CN118253581B (en) | 2024-05-30 | 2024-05-30 | Novel flat copper pipe rotary rolling device and production method |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2065333C1 (en) * | 1993-05-27 | 1996-08-20 | Товарищество с ограниченной ответственностью "Мелита" | Method of helical rolling of axially symmetrical products |
| CN206415436U (en) * | 2016-08-31 | 2017-08-18 | 广东诺科冷暖设备有限公司 | flat spiral coil pipe spinning machine |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB443418A (en) * | 1935-09-21 | 1936-02-27 | British Timken Ltd | Improved means and process for producing balls, rollers and other articles from bars or rods |
| FR1303558A (en) * | 1961-07-31 | 1962-09-14 | Ct De Rech S De Pont A Mousson | Device for the manufacture of tubes |
| DE2945123A1 (en) * | 1979-11-08 | 1981-05-21 | Rib Loc Hong Kong Ltd., Hongkong | Helically wound tube forming machine - has strip feed delivering to pressing roller, with flanged guide rollers angled around tube periphery |
| KR101046626B1 (en) * | 2008-10-28 | 2011-07-05 | 최건식 | Tube Groove Forming Device |
| CN102451871B (en) * | 2011-12-13 | 2013-08-28 | 万向电动汽车有限公司 | Device capable of preventing stamping adhesion of stamping die |
| CN105234230A (en) * | 2015-11-06 | 2016-01-13 | 福建省晋江市佶龙机械工业有限公司 | Elliptical rolling type radiating pipe and manufacturing equipment thereof |
| CN106238609B (en) * | 2016-08-31 | 2018-08-03 | 广东诺科冷暖设备有限公司 | A kind of manufacturing method of flat spiral coil pipe |
| CN115533544A (en) * | 2022-11-10 | 2022-12-30 | 浙江欧迪恩传动科技股份有限公司 | Machining die and machining method of heating pipe of inductor for quenching |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2065333C1 (en) * | 1993-05-27 | 1996-08-20 | Товарищество с ограниченной ответственностью "Мелита" | Method of helical rolling of axially symmetrical products |
| CN206415436U (en) * | 2016-08-31 | 2017-08-18 | 广东诺科冷暖设备有限公司 | flat spiral coil pipe spinning machine |
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| CN118253581A (en) | 2024-06-28 |
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