CN113020461A - Manual reinforcing device and method for metal plastic composite pipe - Google Patents
Manual reinforcing device and method for metal plastic composite pipe Download PDFInfo
- Publication number
- CN113020461A CN113020461A CN202110240512.5A CN202110240512A CN113020461A CN 113020461 A CN113020461 A CN 113020461A CN 202110240512 A CN202110240512 A CN 202110240512A CN 113020461 A CN113020461 A CN 113020461A
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- ring
- taper sleeve
- face
- pipe
- stop
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- 239000002184 metal Substances 0.000 title claims abstract description 42
- 239000002131 composite material Substances 0.000 title claims abstract description 28
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000004513 sizing Methods 0.000 claims abstract description 41
- 230000005540 biological transmission Effects 0.000 claims description 30
- 230000009471 action Effects 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims 7
- 239000007769 metal material Substances 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/08—Tube expanders
- B21D39/20—Tube expanders with mandrels, e.g. expandable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C57/00—Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels
- B29C57/02—Belling or enlarging, e.g. combined with forming a groove
- B29C57/04—Belling or enlarging, e.g. combined with forming a groove using mechanical means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
A manual reinforcing device and method for a metal plastic composite pipe comprise an expanding machine body and a sizing ring used for compressing a metal pipe and a plastic pipe at the end opening of the metal plastic composite pipe, wherein the sizing ring is a stretchable annular part made of metal materials, the expanding machine body comprises a taper sleeve and a plurality of movable module units arranged in an annular array, the taper sleeve is arranged in an inner ring of a cylindrical structure formed by the annular array of the plurality of module units, the taper sleeve can move along the central line of the cylindrical structure and simultaneously push the plurality of module units to move far away from each other in a plane perpendicular to the central line of the cylindrical structure to contact and extrude the sizing ring in the inner ring at the end opening of the metal plastic composite pipe, and the outer diameter of the sizing ring is expanded to compress the inner wall of the plastic pipe. The invention can efficiently and accurately reinforce the port of the metal plastic composite pipe, is flexible to use, does not need a power device by manually driving the expanding machine body, and is simple, labor-saving and easy to operate.
Description
Technical Field
The invention relates to the technical field of pipe processing, in particular to a manual reinforcing device and method for a metal plastic composite pipe.
Background
The metal plastic composite pipe is a pipe which is formed by compounding an outer layer serving as a metal pipe and an inner layer serving as a plastic pipe through a certain process, and has the advantages of the metal pipe and a non-metal pipe. After the metal pipe and the plastic pipe are compounded, the metal pipe and the plastic pipe are easily separated from each other at the end opening of the metal plastic composite pipe in the processes of placing, carrying, using and the like, and the phenomenon needs to be prevented in order to prevent the metal pipe and the plastic pipe from being separated from each other in an enlarged range and influencing the service performance of the metal plastic composite pipe. In other words, the pipe port may need to be reinforced in any place such as placement, transportation, use and installation site of the pipe. In addition, in the production process of the metal plastic composite pipe, the pipe port can be reinforced by the expanding equipment, but part of the pipe needs to be cut off in the installation site, and the expanding equipment is large in size and weight, so that the pipe is inconvenient to transport to the installation site, can be used only by electrifying and providing hydraulic power, and is difficult to reinforce the cut pipe port.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a manual reinforcing device for a metal plastic composite pipe, which is simple, compact, easy to carry and move, flexible to use, suitable for occasions such as a processing site, an installation site and the like, does not need a power device by manually driving an expanding machine body, is simple, labor-saving and easy to operate and has wide applicability.
In order to achieve the purpose, the invention adopts the technical scheme that:
a manual reinforcing device for a metal plastic composite pipe comprises an expanding machine body and a sizing ring, wherein the sizing ring is used for compressing a metal pipe and a plastic pipe at the end opening of the metal plastic composite pipe and is a stretchable annular part made of metal materials, the expanding machine body comprises a taper sleeve and a plurality of movable module units which are arranged in an annular array mode, the taper sleeve is located in an inner ring of a cylindrical structure formed by the annular array mode of the plurality of module units, the taper sleeve can move along the central line of the cylindrical structure and simultaneously push the plurality of module units to move far away from each other in a plane perpendicular to the central line of the cylindrical structure to contact and extrude the sizing ring located in the inner ring at the end opening of the metal plastic composite pipe, and the outer diameter of the sizing ring is expanded to compress the inner wall of the plastic pipe.
As a further improvement of the above technical solution:
the inner side surface of a cylindrical structure formed by the plurality of module units in an annular array mode is a circular truncated cone side surface or a frustum side surface, the outer side surface of the taper sleeve is a circular truncated cone side surface or a frustum side surface, and the inner side surface of the cylindrical structure is in contact with and attached to the outer side surface of the taper sleeve.
The expanding machine body further comprises at least one return spring, an annular groove is formed in one end face of the cylindrical structure formed by the plurality of module units in the annular array, and the return spring is located in the groove.
The taper sleeve is provided with a screw hole, the central line of the screw hole is superposed with the central line of the taper sleeve, and the expanding machine body further comprises a transmission screw rod which is in threaded connection with the screw hole.
The expanding machine body further comprises an outer sleeve with an inner containing cavity, the transmission screw rod is rotatably mounted on the outer sleeve, one end of the transmission screw rod is located in the outer sleeve, the other end of the transmission screw rod extends out of one end of the outer sleeve, one end of the taper sleeve is located in the outer sleeve, and the other end of the taper sleeve extends out of the other end of the outer sleeve.
The expanding machine body further comprises a stop block and a plurality of limiting bolts, one end of the outer sleeve is fixedly connected with the stop block, the module unit is connected with the stop block through the limiting bolts, a plurality of guide grooves are formed in the stop block, a straight line where each guide groove is located is perpendicularly intersected with the central line of the taper sleeve, the limiting bolts are arranged in the guide grooves in a sliding mode, one end of each limiting bolt is connected with the module unit, and the other end of each limiting bolt is arranged in the guide grooves in a sliding mode.
The expanding machine body further comprises a stop ring and an end face stop block, the stop ring and the end face stop block limit the moving range of the taper sleeve, at least two guide limiting rods are fixed in the outer sleeve, the stop block and the end face stop block are located at two ends of each guide limiting rod respectively, the stop ring is located between the stop block and the end face stop block, the stop ring is fixedly connected with one end of the taper sleeve, the end face stop block is located in the outer sleeve, the guide limiting rods penetrate through the stop ring, the stop ring can move to one end of each guide limiting rod along the guide limiting rods and then is prevented from moving by the stop block, or the stop ring can move to the other end of each guide limiting rod.
The module unit comprises an expansion block and a sliding block, the outer end face of the expansion block is opposite to the inner end face of the expansion block, the outer end face of the expansion block is a curved surface which contacts and extrudes the inner wall of the sizing ring, the inner end face of the expansion block is connected with the outer end face of the sliding block, the inner end face of the sliding block is opposite to the outer end face of the sliding block, and the inner end face of the sliding block contacts and is attached to the outer side face of the taper sleeve.
The groove is formed in the sliding block, and a spring baffle plate for preventing the return spring from falling out is further arranged on the sliding block.
A reinforcing method based on the manual reinforcing device comprises the following steps of:
step S1: placing a sizing ring at a port in the metal plastic composite pipe;
step S2: extending the expanding machine body into the sizing ring to enable the sizing ring to be sleeved outside the module unit;
step S3: rotating the transmission screw rod until the outer diameter of the sizing ring is expanded until the outer wall of the sizing ring contacts and extrudes the inner wall of the inner layer plastic pipe of the metal plastic composite pipe, and then reversely rotating the transmission screw rod;
step S4: and (4) rotating the expanding mill body by a certain angle to enable the inner wall part of the sizing ring which is not contacted and extruded in the step S3 to be aligned with the module unit, and repeating the action of the step S3 to finish the processing.
The invention has the beneficial effects that: the reinforcing device has the advantages that the port of the metal plastic composite pipe is reinforced simply, efficiently and accurately, the metal pipe and the plastic pipe at the port of the metal plastic composite pipe are prevented from being separated, the performance of the metal plastic composite pipe is influenced, the reinforcing device is simple and compact in structure, easy to carry and move, flexible to use, suitable for occasions such as a processing site and an installation site, free of a power device and easy to operate and wide in applicability due to the fact that the expanding machine body is driven manually, and the reinforcing device is simple, labor-saving and easy to operate.
Drawings
Fig. 1 is a schematic cross-sectional structure view of an expanding machine body according to an embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
A manual reinforcing device and a manual reinforcing method for a metal plastic composite pipe are disclosed, as shown in figure 1, and comprise an expanding mill body and a sizing ring used for compressing a metal pipe and a plastic pipe at the end opening of the metal plastic composite pipe, wherein the sizing ring is a stretchable annular part made of metal, and before stretching, the outer diameter of the sizing ring is smaller than the inner diameter of the metal plastic composite pipe.
The expanding machine body comprises an outer sleeve, a taper sleeve 3, a transmission screw rod 4, a stop block 6, a stop ring 7, an end face stop block 8, a bearing 9, at least one return spring 5, a plurality of limiting bolts and a plurality of module units 2.
The plurality of module units 2 are arranged in a circular array in a cylindrical structure, the module units 2 are movable in a direction perpendicular to the center line of the cylindrical structure, and a straight line of the moving direction is perpendicularly intersected with the center line of the cylindrical structure. The taper sleeve 3 is positioned in the inner ring of the cylindrical structure formed by the annular array of the plurality of module units 2, the taper sleeve 3 can move along the central line of the cylindrical structure and simultaneously push the plurality of module units 2 to move away from each other in a plane perpendicular to the central line of the cylindrical structure until the inner wall of the sizing ring is contacted and extruded until the outer diameter of the sizing ring is expanded to be pressed against the inner wall of the plastic pipe.
The inner side surface of the cylindrical structure formed by the plurality of module units 2 in an annular array mode is a circular truncated cone side surface or a frustum side surface, the outer side surface of the taper sleeve 3 is a circular truncated cone side surface or a frustum side surface, and the inner side surface of the cylindrical structure is in contact with and attached to the outer side surface of the taper sleeve 3.
Preferably, the modular units 2 comprise the expansion blocks 21 and the sliding blocks 22 which move together, i.e. the plurality of modular units 2 comprise a plurality of expansion blocks 21 and a plurality of sliding blocks 22, and the number of the expansion blocks 21 is the same as the number of the sliding blocks 22. Preferably, the expansion block 21 is in a fan-shaped ring shape, the outer end surface of the expansion block 21 is opposite to the inner end surface of the expansion block 21, the outer end surface of the expansion block 21 is a curved surface which contacts and extrudes the inner wall of the sizing ring, the inner end surface of the expansion block 21 is connected with the outer end surface of the sliding block 22, the inner end surface of the sliding block 22 is opposite to the outer end surface of the sliding block 22, and the inner end surface of the sliding block 22 contacts and is attached to the outer side surface of the taper sleeve 3.
The center line of the taper sleeve 3 is coincident with the center line of the cylindrical structure formed by the annular array of the plurality of module units 2. The taper sleeve 3 is provided with a screw hole, the central line of the screw hole is superposed with the central line of the taper sleeve 3, and preferably, the screw hole is a through hole. The transmission screw rod 4 is in threaded connection with the screw hole.
The transmission screw rod 4 is rotatably arranged on the outer sleeve through a bearing 9, one end of the transmission screw rod 4 is positioned in the outer sleeve and connected with the taper sleeve 3, the other end of the transmission screw rod 4 extends out of one end of the outer sleeve, one end of the taper sleeve 3 is positioned in the outer sleeve and connected with the transmission screw rod 4, and the other end of the taper sleeve extends out of the other end of the outer sleeve. Preferably, the small end of the taper sleeve 3 is connected with the transmission screw rod 4, that is, the larger end of the small end of the taper sleeve 3 is closer to the transmission screw rod 4.
One end of the outer sleeve is fixedly connected with a stop block 6. The slide 22 of the modular unit 2 is connected to the stop 6 by means of a limit bolt. The stop block 6 is provided with a plurality of guide grooves, the straight line where each guide groove is located is vertically intersected with the central line of the taper sleeve 3, a limiting bolt is arranged in each guide groove in a sliding mode, one end of each limiting bolt is connected with the sliding block 22, and the other end of each limiting bolt is arranged in each guide groove in a sliding mode. Preferably, the guide groove is a through hole, one end of the limit bolt is a head, the other end of the limit bolt penetrates through the guide groove and then is connected with the sliding block 22, and the outer diameter of the head of the limit bolt is larger than the width of the guide groove. So accessible stop bolt is with modular unit 2 connection on dog 6, and stop bolt does not influence modular unit 2's removal simultaneously.
The stop ring 7 and the end face stop block 8 limit the moving range of the taper sleeve 3 and prevent the taper sleeve 3 from moving to be separated from the connection with the transmission screw rod 4. At least two guide limiting rods 11 fixed in the outer sleeve are arranged in the outer sleeve, and the length direction of each guide limiting rod 11 is overlapped with the central line of the taper sleeve 3. The end surface stop dog 8 is fixedly arranged in the jacket, the stop dog 6 and the end surface stop dog 8 are respectively positioned at two ends of the guide limiting rod 11, and the stop ring 7 is positioned between the stop dog 6 and the end surface stop dog 8. The baffle ring 7 is fixedly connected with one end of the taper sleeve 3, which is positioned in the outer sleeve, the guide limiting rod 11 penetrates through the baffle ring 7, the baffle ring 7 can move to one end of the guide limiting rod 11 along the guide limiting rod 11, and then the baffle ring 7 is prevented from moving by the baffle block 6, or the baffle ring 7 can move to the other end of the guide limiting rod 11 and then is prevented from moving by the end face baffle block 8.
An annular groove is formed in one end face of the cylindrical structure formed by the plurality of module units 2 in the annular array, and the center line of the groove is superposed with the center line of the cylindrical structure formed by the plurality of module units 2 in the annular array. The grooves are cut in the slider 22. The return spring 5 is annular, and the return spring 5 is positioned in the groove. The slider 22 is also provided with a spring stop 51 which prevents the return spring 5 from falling out.
The diameter expanding method based on the manual reinforcing device comprises the following steps:
first, expanding the diameter for the first time.
Firstly, a sizing ring is placed at a port in a pipe, a module unit 2 of an expanding machine body in an unexpanded state is extended into the pipe port, one end of a transmission screw rod 4 extending out of an outer sleeve is rotated, the transmission screw rod 4 drives a taper sleeve 3 to move along the length direction of the transmission screw rod 4 or the central line direction of the taper sleeve 3, the big end of the taper sleeve 3 moves towards the direction close to the transmission screw rod 4, at the moment, the outer diameter of the part of the taper sleeve 3 contacted with a slide block 22 is gradually increased, a plurality of slide blocks 22 are pushed by the taper sleeve 3 to move away from each other, an expansion block 21 is pushed by the slide block 22 connected with the expansion block to move synchronously, in other words, a plurality of module units 2 expand, a plurality of module units 2 move until the outer end surfaces of the expansion blocks 21 contact and press the inner wall of the sizing ring, the outer diameter of the sizing ring is increased until the outer wall of the sizing ring contacts and, the plastic pipe and the metal pipe are pressed, and at the same time, the diameter of the annular return spring 5 is enlarged, and the return spring 5 is stretched.
Then, when the fixed diameter ring contacts and extrudes the inner wall of the plastic pipe, one end of the transmission screw rod 4 extending out of the outer sleeve is rotated reversely, the transmission screw rod 4 drives the taper sleeve 3 to move along the length direction of the transmission screw rod 4 or the central line direction of the taper sleeve 3, the big end of the taper sleeve 3 moves towards the direction far away from the transmission screw rod 4, at the moment, the outer diameter of the part of the taper sleeve 3 contacted with the sliding block 22 is gradually reduced, the outer diameter of the cylinder formed by the annular arrays of the module units 2 is reduced under the elastic action of the return spring 5 by the sliding blocks 22, and the resetting of the module units 2 is realized.
And secondly, expanding the diameter again.
And rotating the expanding machine body by a certain angle to enable the inner wall part of the sizing ring which is not contacted and extruded in the first expanding process to be aligned with the outer end surface of the expanding block 21, and repeating the action of the first step to enable the inner wall part of the sizing ring which is not contacted and extruded to be expanded to finish the processing process.
When the plurality of expansion blocks 21 expand and contact the inner wall of the sizing ring, a gap exists between the outer end surfaces of the adjacent expansion blocks 21, and the gap part is the inner wall part of the sizing ring which is not contacted and extruded.
Finally, it must be said here that: the above embodiments are only used for further detailed description of the technical solutions of the present invention, and should not be understood as limiting the scope of the present invention, and the insubstantial modifications and adaptations made by those skilled in the art according to the above descriptions of the present invention are within the scope of the present invention.
Claims (10)
1. The utility model provides a manual reinforcing apparatus for metal plastic composite pipe which characterized in that: the metal pipe and plastic pipe sizing ring comprises an expanding mill body and a sizing ring used for compressing the metal pipe and a plastic pipe at the port of a metal plastic composite pipe, wherein the sizing ring is a stretchable annular part made of metal, the expanding mill body comprises a taper sleeve (3) and a plurality of movable module units (2) arranged in an annular array, the taper sleeve (3) is positioned in an inner ring of a cylindrical structure formed by the annular array of the plurality of module units (2), the taper sleeve (3) can move along the central line of the cylindrical structure and simultaneously push the plurality of module units (2) to move away from each other in a plane vertical to the central line of the cylindrical structure to contact and extrude the sizing ring positioned in the inner ring at the port of the metal plastic composite pipe, and the outer diameter of the sizing ring is expanded to the inner wall of the plastic pipe.
2. The manual fastening device according to claim 1, characterized in that: the inner side face of the cylindrical structure formed by the plurality of module units (2) in an annular array mode is a circular truncated cone side face or a frustum side face, the outer side face of the taper sleeve (3) is a circular truncated cone side face or a frustum side face, and the inner side face of the cylindrical structure is in contact with and attached to the outer side face of the taper sleeve (3).
3. The manual reinforcement device of claim 2, wherein: the expanding machine body further comprises at least one return spring (5), an annular groove is formed in one end face of a cylindrical structure formed by the plurality of module units (2) in an annular array mode, and the return spring (5) is located in the groove.
4. The manual reinforcement device of claim 2, wherein: the expanding machine comprises a taper sleeve (3), a screw hole is formed in the taper sleeve (3), the center line of the screw hole is overlapped with the center line of the taper sleeve (3), the expanding machine body further comprises a transmission screw rod (4), and the transmission screw rod (4) is in threaded connection with the screw hole.
5. The manual reinforcement device of claim 4, wherein: the expanding machine body further comprises an outer sleeve with an inner containing cavity, the transmission screw rod (4) is rotatably installed on the outer sleeve, one end of the transmission screw rod (4) is located in the outer sleeve, the other end of the transmission screw rod extends out of one end of the outer sleeve, one end of the taper sleeve (3) is located in the outer sleeve, and the other end of the taper sleeve extends out of the other end of the outer sleeve.
6. The manual reinforcement device of claim 5, wherein: the expanding machine body further comprises a stop block (6) and a plurality of limiting bolts, one end of the outer sleeve is fixedly connected with the stop block (6), the module unit (2) is connected with the stop block (6) through the limiting bolts, a plurality of guide grooves are formed in the stop block (6), a straight line where each guide groove is located is perpendicularly intersected with the central line of the taper sleeve (3), the limiting bolts are arranged in the guide grooves in a sliding mode, one end of each limiting bolt is connected with the module unit (2), and the other end of each limiting bolt is arranged in the guide grooves in a sliding mode.
7. The manual reinforcement device of claim 6, wherein: the expanding machine body further comprises a stop ring (7) and an end face stop block (8) which limit the moving range of the taper sleeve (3), at least two guide limiting rods (11) fixed in the outer sleeve are further arranged in the outer sleeve, the stop block (6) and the end face stop block (8) are respectively located at two ends of the guide limiting rods (11), the stop ring (7) is located between the stop block (6) and the end face stop block (8), the stop ring (7) is fixedly connected with one end, located in the outer sleeve, of the taper sleeve (3), the guide limiting rods (11) penetrate through the stop ring (7), the stop ring (7) can move to one end of each guide limiting rod (11) along the guide limiting rods (11) and then the stop ring (7) is prevented from moving by the stop block (6), or the stop ring (7) can move to the other end of the guide limiting rods (11) and then the stop ring (8) can prevent movement.
8. The manual reinforcement device of claim 3, wherein: the module unit (2) comprises an expansion block (21) and a sliding block (22), the outer end face of the expansion block (21) is opposite to the inner end face of the expansion block (21), the outer end face of the expansion block (21) is a curved surface which is contacted with and extrudes the inner wall of the sizing ring, the inner end face of the expansion block (21) is connected with the outer end face of the sliding block (22), the inner end face of the sliding block (22) is opposite to the outer end face of the sliding block (22), and the inner end face of the sliding block (22) is contacted with and attached to the outer side face of the taper sleeve (3).
9. The manual reinforcement device of claim 8, wherein: the groove is formed in the sliding block (22), and a spring baffle (51) for preventing the return spring (5) from falling out is further arranged on the sliding block (22).
10. A reinforcing method based on the manual reinforcing device of any one of claims 1 to 9, characterized in that: comprises the following steps which are carried out in sequence:
step S1: placing a sizing ring at a port in the metal plastic composite pipe;
step S2: extending the expanding mill body into the sizing ring to enable the sizing ring to be sleeved outside the module unit (2);
step S3: rotating the transmission screw rod (4) until the outer diameter of the sizing ring is expanded until the outer wall of the sizing ring contacts and extrudes the inner wall of the inner layer plastic pipe of the metal plastic composite pipe, and then reversely rotating the transmission screw rod (4);
step S4: and (4) rotating the expanding mill body by a certain angle to enable the inner wall part of the sizing ring which is not contacted and extruded in the step S3 to be aligned with the module unit (2), and repeating the action of the step S3 to finish the processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110240512.5A CN113020461A (en) | 2021-03-04 | 2021-03-04 | Manual reinforcing device and method for metal plastic composite pipe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110240512.5A CN113020461A (en) | 2021-03-04 | 2021-03-04 | Manual reinforcing device and method for metal plastic composite pipe |
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| CN113020461A true CN113020461A (en) | 2021-06-25 |
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| CN202110240512.5A Pending CN113020461A (en) | 2021-03-04 | 2021-03-04 | Manual reinforcing device and method for metal plastic composite pipe |
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| CN111438284A (en) * | 2020-04-30 | 2020-07-24 | 中山联塑华通钢塑管有限公司 | Hydraulic pipe expanding device |
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2021
- 2021-03-04 CN CN202110240512.5A patent/CN113020461A/en active Pending
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|---|---|---|---|---|
| CN85203954U (en) * | 1985-09-07 | 1987-01-28 | 上海沪江机械厂 | Turning-side machanical device for silent expansion pipe |
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| JP2016023775A (en) * | 2014-07-23 | 2016-02-08 | 株式会社Ｎｂｌ研究所 | Composite steel pipe for oil well |
| CN204842715U (en) * | 2015-05-07 | 2015-12-09 | 诸暨市艾拓五金工具有限公司 | Automatic expand tube instrument |
| CN111438284A (en) * | 2020-04-30 | 2020-07-24 | 中山联塑华通钢塑管有限公司 | Hydraulic pipe expanding device |
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Application publication date: 20210625 |