CN218749441U - Aluminum-plastic pipe production equipment - Google Patents
Aluminum-plastic pipe production equipment Download PDFInfo
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- CN218749441U CN218749441U CN202223230526.8U CN202223230526U CN218749441U CN 218749441 U CN218749441 U CN 218749441U CN 202223230526 U CN202223230526 U CN 202223230526U CN 218749441 U CN218749441 U CN 218749441U
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- grinding wheel
- aluminum
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- strip
- aluminum strip
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Abstract
The utility model discloses an aluminum-plastic pipe production facility includes first extrusion device, interior glue coating device, aluminium strip conveyor, rolls the wheelset, glues coating device outward, second extrusion device in proper order, arranges on the production line, its characterized in that: the grinding wheel set is arranged between the aluminum strip conveying device and the rolling wheel set, the grinding wheel set comprises an upper grinding wheel and a lower grinding wheel, and the aluminum strip penetrates through the space between the upper grinding wheel and the lower grinding wheel to form tight fit; wherein the grinding wheel proximate the inner tube has a rough surface. The utility model discloses a design of emery wheel group, when the aluminium strip was in the time of the emery wheel, one side wherein was polished by the rough surface of emery wheel and becomes roughly, and this face is the internal surface behind the follow-up aluminium pipe that becomes, thereby has better bonding firmness with the hot melt adhesive; under the condition that two grinding wheels are rough surfaces, the two surfaces of the aluminum strip are rough surfaces, so that the outer surface of the aluminum pipe is also rough, and the aluminum pipe can be better and more firmly welded with the inner pipe and the outer pipe.
Description
Technical Field
The utility model belongs to the technical field of the tubular product is made, especially, relate to an aluminum-plastic pipe production facility.
Background
The aluminum plastic pipe is a common water heating pipe, and the basic composition of the aluminum plastic pipe is five layers, namely plastic, hot melt adhesive, aluminum alloy, hot melt adhesive and plastic in sequence from inside to outside, wherein the plastic layer can be Polyethylene (PE) or cross-linked Polyethylene (PEX). For producing the aluminum plastic pipe, a common process is as disclosed in the Chinese patent 201410182831.5, and comprises the main steps of inner pipe extrusion, inner glue extrusion, aluminum tape unwinding, aluminum pipe shaping, heating, outer glue extrusion, outer pipe extrusion and the like. Specifically, firstly, a plastic pipe of an inner layer is produced, then hot melt adhesive is coated on the outer wall of an inner pipe, meanwhile, an appropriate aluminum strip coil is prepared to move in the same direction with the extruded inner pipe, the width of the aluminum strip is equal to the circumference of the designed aluminum pipe, then the aluminum strip is attached to the inner pipe, the planar aluminum strip is bent into a tubular shape through a series of rolling wheels to be coated outside the inner pipe, and simultaneously, the hot melt adhesive is heated to tightly bond the inner pipe and the aluminum pipe into a whole; and then coating a second layer of hot melt adhesive outside the aluminum pipe, and then enabling the aluminum pipe to pass through a second extrusion device to form an outer pipe, thereby manufacturing the complete aluminum-plastic pipe with the five-layer structure.
The production equipment of the aluminum-plastic pipe is a production line and sequentially comprises a first extrusion device, an inner adhesive coating device, an aluminum strip conveying device, a rolling wheel set, an outer adhesive coating device and a second extrusion device which are not necessarily physically connected, and the production of the aluminum-plastic pipe is completed through the spatial arrangement sequence.
In the prior art, the problem that the aluminum tube is mechanically bent from a planar sheet, cannot be perfectly circular mathematically, and the gap between the aluminum tube and the plastic tube, particularly between the aluminum tube and the inner tube, needs to be filled with hot melt adhesive is more prominent. Under the condition that the hot melt adhesive is not distributed in place, the adhesive force is possibly insufficient, so that the phenomenon of slipping between the aluminum tube layer and the inner tube layer is caused.
Disclosure of Invention
The utility model aims at providing an aluminum-plastic pipe production facility can promote the butt fusion effect between aluminum pipe and the plastic tubing.
Therefore, the utility model discloses a technical scheme is like this: aluminium-plastic pipe production facility includes first extrusion device, interior gluey coating device, aluminium strip conveyor, rolls wheelset, outer gluey coating device, second extrusion device in proper order, arranges on the production line its characterized in that: the grinding wheel set is arranged between the aluminum strip conveying device and the rolling wheel set, the grinding wheel set comprises an upper grinding wheel and a lower grinding wheel, and the aluminum strip penetrates through the space between the upper grinding wheel and the lower grinding wheel to form tight fit; wherein the grinding wheel proximate the inner tube has a rough surface.
As a further technical scheme, the other grinding wheel of the grinding wheel set is also a rough surface.
The rolling wheel group comprises at least one radial rolling wheel, the radial rolling wheel is generally annular and is vertical to the conveying direction of the aluminum strip, the outer surface of the radial rolling wheel is cylindrical, and the inner surface of the radial rolling wheel is in a circular truncated cone shape; the diameter of the inner surface of the circular truncated cone is smaller than that of the inner surface of the circular truncated cone at the front running part of the aluminum strip.
The utility model discloses a design of emery wheel group, when the aluminium strip was in the time of the emery wheel, one side wherein was polished by the rough surface of emery wheel and becomes roughly, and this face is the internal surface behind the follow-up aluminium pipe that becomes, thereby has better bonding firmness with the hot melt adhesive; under the condition that two grinding wheels are rough surfaces, the two surfaces of the aluminum strip are rough surfaces, so that the outer surface of the aluminum pipe is also rough, and the aluminum pipe can be better and more firmly welded with the inner pipe and the outer pipe.
Drawings
Fig. 1 is a schematic diagram of the present invention.
Fig. 2 isbase:Sub>A viewbase:Sub>A-base:Sub>A of fig. 1.
Fig. 3 is an enlarged view at B in fig. 1.
Detailed Description
See the drawings. The figure shows the core part of the aluminium-plastic pipe production equipment, a first extrusion device (not shown) produces and forms an inner pipe 1 according to the prior art, an aluminium strip conveying device (not shown) conveys an aluminium strip 2 according to the prior art, the inner pipe 1 and the aluminium strip 2 move forwards simultaneously, namely move from right to left in figure 1, and respectively pass through an inner glue coating device 3 and a grinding wheel group 5; it should be noted that, from the viewpoint of the space rationality of the production line, the internal glue application device 3 and the grinding wheel group 5 should be in different positions in the direction of movement, which are arranged one above the other in the drawing for the sake of clarity of presentation, so that they can be clearly represented in one view.
The main body of the inner glue coating device 3 is annular, a rubber pipe 31 is connected outside the main body, the inner pipe 1 penetrates through the annular main body, and hot melt glue enters the annular main body from the rubber pipe 31 and is coated on the surface of the inner pipe.
The grinding wheel group 5 comprises an upper grinding wheel 51 and a lower grinding wheel 52, and the aluminum strip 2 passes through the upper grinding wheel and the lower grinding wheel to form close contact. The width of the upper grinding wheel and the lower grinding wheel is not less than that of the aluminum strip, and the upper grinding wheel and the lower grinding wheel move relatively; the upper grinding wheel and the lower grinding wheel are provided with rough surfaces, so that the grinding wheels grind the surface of the aluminum strip in the movement process of the aluminum strip. After passing through the grinding wheel set 5, the aluminum strip 2 has rough surfaces on the upper and lower surfaces.
After the inner pipe and the aluminum strip pass through the coating device 3 and the grinding wheel set 5 respectively, the surface of the inner pipe is provided with hot melt adhesive, the surface of the aluminum strip is rough, and the inner pipe and the aluminum strip enter the rolling wheel set simultaneously. The rolling wheel group comprises a plurality of circumferential rolling wheels 41, the rotating direction of the rolling wheels 41 is parallel to the moving direction of the aluminum strip and the inner pipe, and the aluminum strip 2 is curled upwards by utilizing the shape of the wheel rim; the rear part of the circumferential rolling wheel also comprises radial rolling wheels 42 and 43, the radial rolling wheels are fixed and vertical to the moving direction of the aluminum strip and the inner tube, taking the rolling wheel 42 as an example, the inner surface 421 is in a circular truncated cone shape, the aluminum strip and the inner tube pass through the larger bottom surface of the circular truncated cone and then come out from the smaller top surface of the circular truncated cone when moving, the aluminum strip 2 becomes an aluminum tube and is wrapped outside the inner tube 1 through the process, and the hot melt adhesive is filled between the inner tube and the aluminum strip through flow cloth in the process to form an independent inner adhesive layer so as to firmly bond the inner tube and the aluminum strip.
After the aluminum pipe and the inner pipe leave the roller set, the outer glue is coated for one time, and the outer pipe is extruded and formed by a second extrusion device, so that a complete aluminum-plastic pipe is formed. The subsequent steps are prior art and are not shown in the figure.
Claims (3)
1. Aluminium-plastic pipe production facility includes first extrusion device, interior gluey coating device, aluminium strip conveyor, rolls wheelset, outer gluey coating device, second extrusion device in proper order, arranges on the production line its characterized in that: the grinding wheel set is arranged between the aluminum strip conveying device and the rolling wheel set, the grinding wheel set comprises an upper grinding wheel and a lower grinding wheel, and the aluminum strip penetrates through the space between the upper grinding wheel and the lower grinding wheel to form tight fit; wherein the grinding wheel proximate the inner tube has a rough surface.
2. The aluminum-plastic pipe production apparatus of claim 1, wherein: and the other grinding wheel of the grinding wheel set is also a rough surface.
3. The aluminum-plastic pipe production apparatus of claim 1 or 2, wherein: the rolling wheel group comprises at least one radial rolling wheel, the radial rolling wheel is generally annular and is vertical to the conveying direction of the aluminum strip, the outer surface of the radial rolling wheel is cylindrical, and the inner surface of the radial rolling wheel is in a circular truncated cone shape; the diameter of the inner surface of the circular truncated cone is smaller than that of the inner surface of the circular truncated cone at the front running part of the aluminum strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223230526.8U CN218749441U (en) | 2022-12-01 | 2022-12-01 | Aluminum-plastic pipe production equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223230526.8U CN218749441U (en) | 2022-12-01 | 2022-12-01 | Aluminum-plastic pipe production equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218749441U true CN218749441U (en) | 2023-03-28 |
Family
ID=85677911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223230526.8U Active CN218749441U (en) | 2022-12-01 | 2022-12-01 | Aluminum-plastic pipe production equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218749441U (en) |
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2022
- 2022-12-01 CN CN202223230526.8U patent/CN218749441U/en active Active
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