CN112238567A - Steel-plastic composite pipe framework positioning device and method without secondary processing - Google Patents
Steel-plastic composite pipe framework positioning device and method without secondary processing Download PDFInfo
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- CN112238567A CN112238567A CN202011033054.XA CN202011033054A CN112238567A CN 112238567 A CN112238567 A CN 112238567A CN 202011033054 A CN202011033054 A CN 202011033054A CN 112238567 A CN112238567 A CN 112238567A
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- positioning
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- steel
- die
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Classifications
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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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
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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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14065—Positioning or centering articles in the mould
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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
- B29L2023/22—Tubes or pipes, i.e. rigid
Abstract
The invention discloses a device and a method for positioning a steel-plastic composite pipe framework without secondary processing, wherein the device comprises a die, a framework body and plastic positioning nails; the die is detachably divided into an upper part and a lower part, and a die cavity matched with the framework body is formed in the die; a placing groove is arranged on the periphery of the die cavity of the die; the surface of the framework body is fixedly provided with a support nut; the plastic positioning nail is fixed on the supporting nut; when placing the skeleton body in the die cavity, the plastics location nail inserts the standing groove and realizes the location to the skeleton body to through supporting nut with skeleton body jack-up, make the skeleton body unsettled for the mould, in order to ensure that the die cavity wall distance of skeleton body and mould is even. The device provided by the invention can realize effective positioning of the steel skeleton, and meanwhile, when the steel-plastic composite pipe is finished, only redundant plastic positioning nails are required to be cut off, secondary plugging processing is not required, and the risk of leakage of the pipe fitting caused by plugging quality is avoided.
Description
Technical Field
The invention relates to the technical field of welding, in particular to a device and a method for positioning a steel-plastic composite pipe framework without secondary processing.
Background
The existing positioning technology of the steel skeleton embedded in the steel-plastic composite pipe fitting in the die cavity has a positioning method without exposed metal, but after the product is produced by adopting the existing skeleton positioning method, the cavity left on the product by the positioning block needs to be subjected to secondary plugging processing. The positioning method not only can increase the production cost of the pipe fitting, but also can easily cause certain leakage risk to the operation of the pipeline due to the quality problem of plugging at the plugging position of the pipe fitting because of the existence of secondary processing.
Disclosure of Invention
The utility model provides a do not need compound pipe fitting skeleton positioner of steel-plastic of secondary operation and method, be provided with the support nut on the skeleton body, fix plastics location nail on the support nut, when the installation skeleton body, the location to the skeleton body is realized in plastics location nail inserts the standing groove, through the support nut, ensure that skeleton body location is reliable, and when accomplishing compound pipe fitting is moulded to steel-plastic, only need amputate the unnecessary part of plastics location nail, need not only secondary shutoff, ensure can not appear because of the risk that the shutoff quality leads to the leakage.
A steel-plastic composite pipe framework positioning device without secondary processing comprises a mold, a framework body and plastic positioning nails; the die is detachably divided into an upper part and a lower part, and a die cavity matched with the framework body is formed in the die; a placing groove is arranged on the periphery of the die cavity of the die; the surface of the framework body is fixedly provided with a support nut; the plastic positioning nail is fixed on the supporting nut; when placing the skeleton body in the die cavity, the plastics location nail inserts the standing groove and realizes the location to the skeleton body to through supporting nut with skeleton body jack-up, make the skeleton body unsettled for the mould, in order to ensure that the die cavity wall distance of skeleton body and mould is even.
Preferably, the plastic positioning nail comprises a positioning nail thread part and a positioning block; the positioning screw thread part is in threaded connection with the support nut, and the length of the positioning screw thread part is consistent with the thread depth of the support nut; the positioning block is fixed at the upper end of the thread part of the positioning screw; the cross-sectional area of the support nut is larger than that of the positioning block.
Preferably, the positioning block is matched with the placing groove in shape, and the length of the positioning block is smaller than or equal to the depth of the placing groove.
Preferably, the center of the positioning block is provided with a magnetic block.
Preferably, a central placing groove is formed in the central position of the mold; a supporting nut is arranged at the position where the framework body is matched with the central placing groove; fix the plastics location nail on skeleton body and central standing groove assorted position are provided with support nut to place the skeleton body in the mould, be provided with the middle part that support nut can support the skeleton body through skeleton body and central standing groove assorted position.
Preferably, the framework body is provided with a plurality of material passing holes; the material passing hole penetrates through the pipe wall of the framework body.
A method for positioning a framework of a steel-plastic composite pipe fitting without secondary processing comprises the following steps:
s1: fixing the plastic positioning nail on the supporting nut;
s2: disassembling the mold, placing the framework body fixed with the plastic positioning nail into the mold, inserting the plastic positioning nail into the placing groove and the central placing groove, and supporting the support nut on the mold cavity wall to realize positioning of the framework body;
s3: buckling the mold, and punching plastic into the mold to realize plastic wrapping of the framework body;
s4: and after cooling, cutting off the redundant parts of the plastic positioning nails of the workpiece which is finished with the step S3 to finish the steel-plastic composite pipe.
Has the advantages that:
1. according to the invention, the support nut is arranged on the framework body, the plastic positioning nail is fixed on the support nut, the positioning block part of the plastic positioning nail is inserted into the placing groove and the central placing groove of the mold, so that the framework body is positioned, and the framework body is jacked up through the support nut, so that the framework body is suspended in the air relative to the mold, and the uniform distance between the framework body and the mold cavity wall of the mold is ensured, and the subsequent production is facilitated;
2. because the framework body is placed in the die, the distance between the framework body and the die cavity wall of the die is uniform, and when the steel-plastic composite pipe is produced, the uniformity of the pipe wall of the steel-plastic composite pipe can be ensured;
3. after the production of the steel-plastic composite pipe is finished, the steel-plastic composite pipe is taken out, the plastic positioning nail protrudes relative to the pipe wall of the steel-plastic composite pipe, and the production of the steel-plastic composite pipe can be finished only by cutting off the redundant part of the plastic positioning nail without secondary plugging processing, so that the risk of leakage caused by plugging quality is avoided;
4. be provided with the magnetic path in the locating piece of plastics location nail, in the installation of skeleton body, after locating piece inserted standing groove and central standing groove, can hold the mould through the magnetic path, ensure the stability to skeleton body location.
Drawings
FIG. 1 is a sectional view of the structure of the framework-equipped body of the mold of the present invention;
FIG. 2 is a sectional view of the positioning tool of the present invention;
FIG. 3 is a view of the framework body with plastic positioning pins according to the present invention;
FIG. 4 is a side sectional view of the positioning tool of the present invention;
FIG. 5 is a side view of the framework of the steel-plastic composite pipe of the present invention;
FIG. 6 is a view of the skeleton body structure of the present invention;
FIG. 7 is a view of the plastic locating pin of the present invention;
FIG. 8 is an enlarged view of the structure of part A of the present invention.
In the figure: 1. a mold; 11. a placement groove; 12. a central placement groove; 2. a skeleton body; 21. a support nut; 22. a material passing hole; 3. plastic positioning nails; 31. a positioning screw thread part; 32. and (5) positioning the blocks.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
As shown in fig. 1-8, the invention provides a positioning device for a framework of a steel-plastic composite pipe fitting without secondary processing, which comprises a die 1, a framework body 2 and plastic positioning nails 3; the mould 1 is detachably divided into an upper part and a lower part, and a mould cavity matched with the framework body 2 is formed in the mould 1; a placing groove 11 is arranged on the periphery of the die cavity of the die 1; the surface of the framework body 2 is fixedly provided with a support nut 21; the plastic positioning nail 3 is fixed on the supporting nut 21; when placing skeleton body 2 in the die cavity, plastics location nail 3 inserts standing groove 11 and realizes the location to skeleton body 2 to through support nut 21 with skeleton body 2 jack-up, make skeleton body 2 unsettled for mould 1, in order to ensure that skeleton body 2 and mould 1's die cavity wall distance is even. According to the invention, the support nut 21 is arranged on the framework body 2, the plastic positioning nail 3 is fixed on the support nut 21, the positioning block 32 part of the plastic positioning nail 3 is inserted into the placing groove 11 and the central placing groove 12 of the mold 1, so that the framework body 2 is positioned, and the framework body 2 is jacked up through the support nut 21, so that the framework body 2 is suspended relative to the mold 1, and the uniform distance between the framework body 2 and the mold cavity wall of the mold 1 is ensured, and the subsequent production is convenient.
The plastic positioning nail 3 comprises a positioning nail thread part 31 and a positioning block 32; the positioning screw thread part 31 is in threaded connection with the support nut 21, and the length of the positioning screw thread part 31 is consistent with the thread depth of the support nut 21; the positioning block 32 is fixed at the upper end of the positioning screw thread part 31; the cross-sectional area of the support nut 21 is larger than that of the positioning block 32. The positioning block 32 is matched with the placing groove 11 in shape, and the length of the positioning block 32 is smaller than or equal to the depth of the placing groove 11. Fix plastics location nail 3 on support nut 21, because the cross-sectional area of support nut 21 is greater than the cross-sectional area of locating piece 32, can make support nut 21 form a spacing step for locating piece 32, and the shape and the locating piece 32 phase-match of standing groove 11, when plastics location nail 3 inserts in standing groove 11 like this, support nut 21 can form the step between skeleton body 2 and mould 1, it is even to guarantee that skeleton body 2 and mould 1's die cavity wall distance, and because the skeleton body is placed in the mould, the skeleton body is even with the die cavity wall distance of mould, when producing steel-plastic composite pipe, can guarantee that the pipe wall of steel-plastic composite pipe is even.
The magnetic block is arranged in the positioning block 32 of the plastic positioning nail 3, and when the positioning block 32 is inserted into the placing groove 11 and the central placing groove 12 in the installation process of the framework body 2, the magnetic block can suck the mold 1, so that the positioning stability of the framework body 2 is ensured
A central placing groove 12 is arranged at the central position of the mould 1; a supporting nut 21 is arranged at the matched part of the framework body 2 and the central placing groove 12; fix plastics location nail 3 on skeleton body 2 and central standing groove 12 assorted position is provided with support nut 21 to place skeleton body 2 in mould 1, be provided with the middle part that support nut 21 can support skeleton body 2 through skeleton body 2 and central standing groove 12 assorted position. Through the structural arrangement of the supporting nuts 21 and the central placing grooves 12, when the framework body 2 is placed in the mold 1, the supporting nuts 21 located between the central placing grooves 12 and the framework body 2 can jack up the framework body 2, so that the problem of sinking and deformation due to the action of gravity can be avoided when the framework body 2 is placed in the mold 1.
The framework body 2 is provided with a plurality of material passing holes 22; the material passing hole 22 penetrates through the pipe wall of the framework body 2. Because skeleton body 2 is placed in mould 1, the die cavity wall distance of skeleton body 2 and mould 1 is even, and the location is firm, and when the compound pipe is moulded to production steel, the injection moulding material can pass material hole 22 and get into the inside of skeleton body 2, can make the plastic layer of skeleton body inside and outside more even.
The body of the plastic positioning nail 3 is made of plastic materials, the steel-plastic composite pipe is taken out after the production of the steel-plastic composite pipe is completed, the plastic positioning nail 3 protrudes relative to the pipe wall of the steel-plastic composite pipe, the production of the steel-plastic composite pipe is completed only by cutting off the redundant part of the plastic positioning nail 3 at the moment, secondary plugging is not needed, and the risk of leakage caused by plugging quality is avoided
A method for positioning a framework of a steel-plastic composite pipe fitting without secondary processing is characterized by comprising the following steps of:
the method comprises the following steps:
s1: fixing the plastic positioning nail 3 on the supporting nut 21;
s2: disassembling the mold 1, placing the framework body 2 fixed with the plastic positioning nails 3 into the mold 1, inserting the plastic positioning nails 3 into the placing grooves 11 and the central placing groove 12, and simultaneously supporting the supporting nuts 21 on the mold cavity wall to realize the positioning of the framework body 2;
s3: buckling the die 1, and punching plastic into the die 1 to realize plastic wrapping of the framework body 2;
s4: and after cooling, cutting off the redundant parts of the plastic positioning nails 3 of the workpiece which is finished with the step S3 to finish the steel-plastic composite pipe.
Claims (7)
1. The utility model provides a do not need compound pipe fitting skeleton positioner of steel-plastic of secondary operation which characterized in that:
comprises a mould (1), a framework body (2) and a plastic positioning nail (3);
the die (1) is detachably divided into an upper part and a lower part, and a die cavity matched with the framework body (2) is formed in the die (1);
a placing groove (11) is arranged on the periphery of the die cavity of the die (1);
a support nut (21) is fixedly arranged on the surface of the framework body (2);
the plastic positioning nail (3) is fixed on the supporting nut (21), and the end part of the plastic positioning nail (3) is provided with a magnetic block;
when placing skeleton body (2) in the die cavity, plastics location nail (3) insert standing groove (11) and realize the location to skeleton body (2) to through supporting nut (21) with skeleton body (2) jack-up, make skeleton body (2) unsettled for mould (1), in order to ensure that the die cavity wall distance of skeleton body (2) and mould (1) is even.
2. The positioning device for the framework of the steel-plastic composite pipe fitting without secondary processing according to claim 1, characterized in that:
the plastic positioning nail (3) comprises a positioning nail thread part (31) and a positioning block (32);
the positioning screw thread part (31) is in threaded connection with the support nut (21), and the length of the positioning screw thread part (31) is consistent with the thread depth of the support nut (21);
the positioning block (32) is fixed at the upper end of the positioning screw thread part (31);
the cross-sectional area of the support nut (21) is larger than that of the positioning block (32).
3. The positioning device for the framework of the steel-plastic composite pipe fitting without secondary processing according to claim 2, characterized in that:
the shape of the positioning block (32) is matched with the placing groove (11), and the length of the positioning block (32) is smaller than or equal to the depth of the placing groove (11).
4. The positioning device for the framework of the steel-plastic composite pipe fitting without secondary processing according to claim 2, characterized in that:
the center of the positioning block (32) is provided with a magnetic block.
5. The positioning device for the framework of the steel-plastic composite pipe fitting without secondary processing according to claim 1, characterized in that:
a central placing groove (12) is arranged at the central position of the mould (1);
a supporting nut (21) is arranged at the position of the framework body (2) matched with the central placing groove (12);
fix plastics location nail (3) on skeleton body (2) and central standing groove (12) assorted position are provided with support nut (21) to place skeleton body (2) in mould (1), be provided with the middle part that support nut (21) can support skeleton body (2) through skeleton body (2) and central standing groove (12) assorted position.
6. The positioning device for the framework of the steel-plastic composite pipe fitting without secondary processing according to claim 1, characterized in that:
a plurality of material passing holes (22) are formed in the framework body (2);
the material passing hole (22) penetrates through the pipe wall of the framework body (2).
7. A method for positioning a framework of a steel-plastic composite pipe fitting without secondary processing is characterized by comprising the following steps of:
the method comprises the following steps:
s1: fixing the plastic positioning nail (3) on the support nut (21);
s2: disassembling the mold (1), placing the framework body (2) with the plastic positioning nails (3) fixed in the mold (1), inserting the plastic positioning nails (3) into the placing grooves (11) and the central placing groove (12), and supporting nuts (21) are supported on the wall of the mold cavity to realize the positioning of the framework body (2);
s3: buckling the die (1), and punching plastic into the die (1) to realize plastic wrapping of the framework body (2);
s4: and after cooling, cutting off the redundant parts of the plastic positioning nails (3) of the workpiece which is finished with the step S3 to finish the steel-plastic composite pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011033054.XA CN112238567B (en) | 2020-09-27 | 2020-09-27 | Steel-plastic composite pipe framework positioning device and method without secondary processing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011033054.XA CN112238567B (en) | 2020-09-27 | 2020-09-27 | Steel-plastic composite pipe framework positioning device and method without secondary processing |
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| Publication Number | Publication Date |
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| CN112238567A true CN112238567A (en) | 2021-01-19 |
| CN112238567B CN112238567B (en) | 2022-04-12 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080187614A1 (en) * | 2007-02-02 | 2008-08-07 | Siemens Vdo Automotive Corporation | Plastic positioning pin for overmolded product |
| CN204164568U (en) * | 2014-10-25 | 2015-02-18 | 安源管道实业有限公司 | A kind of composite steel-plastic pipe fitting realizing self-fluxing nature sealing |
| CN204164570U (en) * | 2014-10-25 | 2015-02-18 | 安源管道实业有限公司 | One can self-packing steel plastic compount electric melting pipe fittings |
| CN206344344U (en) * | 2016-06-30 | 2017-07-21 | 安源管道实业股份有限公司 | A kind of location structure of composite steel-plastic pipe fitting skeleton |
| CN111300735A (en) * | 2019-12-10 | 2020-06-19 | 大庆石油管理局有限公司 | Integrated sealing preparation method for steel skeleton polyethylene plastic composite pipe fitting |
-
2020
- 2020-09-27 CN CN202011033054.XA patent/CN112238567B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080187614A1 (en) * | 2007-02-02 | 2008-08-07 | Siemens Vdo Automotive Corporation | Plastic positioning pin for overmolded product |
| CN204164568U (en) * | 2014-10-25 | 2015-02-18 | 安源管道实业有限公司 | A kind of composite steel-plastic pipe fitting realizing self-fluxing nature sealing |
| CN204164570U (en) * | 2014-10-25 | 2015-02-18 | 安源管道实业有限公司 | One can self-packing steel plastic compount electric melting pipe fittings |
| CN206344344U (en) * | 2016-06-30 | 2017-07-21 | 安源管道实业股份有限公司 | A kind of location structure of composite steel-plastic pipe fitting skeleton |
| CN111300735A (en) * | 2019-12-10 | 2020-06-19 | 大庆石油管理局有限公司 | Integrated sealing preparation method for steel skeleton polyethylene plastic composite pipe fitting |
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| CN112238567B (en) | 2022-04-12 |
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