CN113103559B

CN113103559B - Plastic pipe shape correcting device for plastic pipe production line

Info

Publication number: CN113103559B
Application number: CN202110660818.6A
Authority: CN
Inventors: 王彦; 王金灿
Original assignee: Nantong Junan Refrigeration Technology Co ltd
Current assignee: Nantong Junan Refrigeration Technology Co ltd
Priority date: 2021-06-15
Filing date: 2021-06-15
Publication date: 2021-08-24
Anticipated expiration: 2041-06-15
Also published as: CN113103559A

Abstract

The invention discloses a plastic pipe appearance correcting device for a plastic pipe production line, which comprises a carrying platform, and a shaping correcting die and a primary cooling spraying die which are arranged above the carrying platform, wherein a correcting cavity and a cooling cavity which are provided with an inlet and an outlet are respectively arranged in the shaping correcting die and the primary cooling spraying die, the outlet of the correcting cavity is aligned with the inlet of the cooling cavity, correcting wheels of a correcting pipeline are arranged in the correcting cavity, the correcting wheels are arranged around the axis of the correcting cavity in an annular array, each correcting wheel comprises a shaft rod which is rotatably connected with the shaping correcting die, a plurality of groups of construction plates which are abutted against plastic pipes are arranged on the outer edge surface of the shaft rod in an annular array, each construction plate is provided with an abutting surface which is adaptive to the outer edge of the plastic pipe to be corrected, and the construction plates are connected with the shaft rod through elastic members. This a plastic tubing appearance orthotic devices for plastic tubing production line easily realizes correcting to pipe and bellows along the ascending appearance of cross-section direction, and the cooperation is just cold to spray the mould and realize the cooling protection, reduces the probability of collapsing of correcting the back product.

Description

Plastic pipe shape correcting device for plastic pipe production line

Technical Field

The invention belongs to the technical field of plastic pipe production (B29C 53/20), and particularly relates to a plastic pipe shape correcting device for a plastic pipe production line.

Background

At present, most of the production methods of plastic pipes are extrusion molding, and in the extrusion molding production and preparation process of the plastic pipes, the plastic pipes which are just subjected to extrusion molding are in a high-temperature state, and the shapes of the plastic pipes are easy to deform, so that the plastic pipes need to be prevented from deforming at any time and the deformed plastic pipes need to be corrected in the moving and transporting process of the plastic pipes on a production line.

The existing shape correcting device for a plastic pipe production line, such as a plastic pipe shape correcting device for the plastic pipe production line with publication number (CN 106863767A), comprises a pair of upper positioning rollers (1), a pair of lower positioning rollers (2), a rotating disc (3), a pair of upper limiting blocks (1-1), a pair of lower limiting blocks (2-1), a pair of supports (4), a pair of fixing plates (5), an upper connecting rod (5-1), a lower connecting rod (5-2), a pair of clamping blocks (6), a pair of correcting rollers (7), a pair of screw rods (8) and a pair of hand wheels (9). The advantages are that: and the transferred plastic pipe is subjected to shape correction, so that the shape of the plastic pipe is prevented from being changed, and the quality of a final product is ensured.

Although the shape correction during the transfer is realized, the correction cannot be guaranteed to be carried out to a certain extent due to the fact that the material is hot, the correction cannot be carried out to the pipeline with different structures in the correction process, and the applicability is poor.

Disclosure of Invention

The present invention is directed to a plastic pipe shape correction device for a plastic pipe production line, which solves the above problems of the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: a plastic pipe appearance correction device for a plastic pipe production line comprises a height-adjustable carrying platform, a shaping correction die and an initial cooling spraying die, wherein the shaping correction die and the initial cooling spraying die are arranged above the carrying platform;

a correcting cavity and a cooling cavity with an inlet and an outlet are respectively arranged in the shaping correcting die and the primary cooling spraying die, wherein the outlet of the correcting cavity is aligned with the inlet of the cooling cavity, the correcting cavity is integrally columnar and is constructed into a curved surface with radian along the axial direction of the correcting cavity, correcting wheels of a correcting pipeline are arranged in the correcting cavity, and the correcting wheels are arranged around the axis of the correcting cavity in an annular array;

the correcting wheel comprises a shaft lever which is rotatably connected with the shaping correcting die, the axis of the shaft lever is perpendicular to the axis of the correcting cavity, the outer edge surface of the shaft lever is a structural plate which is provided with a plurality of groups of butt plastic pipes in an annular array, the structural plate is provided with butt surfaces which are suitable for the outer edges of the plastic pipes to be corrected, and the structural plate is connected with the shaft lever through a group of elastic members which are at least symmetrically arranged.

As a further preferred scheme, an assembly slide way for installing the shaping correction die and the primary cooling spray die is arranged on the upper end face of the carrying platform, a group of limiting upright posts are symmetrically arranged in the middle of the assembly slide way, and limiting angular edges for limiting the shaping correction die and the primary cooling spray die are arranged on two sides of the assembly slide way.

As a further preferred scheme, a first limiting groove is formed in the position of the first limiting angle edge of the shaping correction die, a second limiting groove is formed in the position of the second limiting angle edge of the first cooling spray die, the embedding grooves of the first limiting upright posts of the shaping correction die are formed in the two sides of the connecting position of the shaping correction die and the first cooling spray die, the side edges of the embedding grooves are provided with slotted holes for installation of antifriction rollers, and the outer edge surface of the antifriction rollers partially extend out of the slotted holes and are in rolling fit with the side walls of the first limiting upright posts.

As a further preferable scheme, an assembly groove is formed in the position, which is matched with the installation position of the correction wheel, in the correction cavity, and the structural plates forming the correction wheel comprise a first plastic arc plate and a second plastic arc plate which are alternately arranged on the periphery of the shaft lever.

As a further preferred scheme, the elastic member adapted to the construction plate is a spring and a connecting seat, the outer edge surface of the shaft rod is constructed with a protrusion for connecting the spring, the protrusion is provided with a guide rod consistent with the axis of the spring, the connecting seat is internally provided with an adjusting cavity for the guide rod to penetrate, the connecting seat is in sliding fit with the guide rod, and the end part of the connecting seat is fixedly connected with the end part of the spring.

As a further preferable scheme, the first plastic arc plates and the second plastic arc plates which are alternately arranged are provided with protrusions matched with the corrugated pipe so as to be meshed with the periphery of the corrugated pipe for correction.

As a further preferred scheme, an annular spraying pipe coaxial with the cooling cavity is arranged in the cooling cavity of the primary cooling spraying mold close to the inlet direction, the annular spraying pipe is provided with an interface connected with a water pump, and the inner edge surface of the cooling cavity is in an annular array and is provided with a plurality of cooling spray heads.

As a further preferable scheme, the bottom end of the cooling cavity is provided with a communicating groove communicated to the outside, the platform deck is provided with a drainage groove connected to the lower part of the communicating groove at a position matched with the communicating groove, and the end part of the drainage groove is provided with a drainage pipe uniformly extending to the outside of the drainage groove.

As a further preferable scheme, a blast pipe is arranged in the cooling cavity of the primary cooling spraying mold in the direction close to the outlet, and the blast pipe is provided with a connector connected with an air pump.

As a further preferable mode, the axis of the cooling spray head and the axis of the cooling cavity form an inclined angle, and the end part of the cooling spray head faces to the outlet of the cooling cavity.

The invention has the technical effects and advantages that: according to the plastic pipe appearance correction device for the plastic pipe production line, the shaping correction die and the primary cooling spraying die are arranged above the carrying platform, the plastic pipe corrected by the shaping correction die is subjected to primary cooling at the primary cooling spraying die, primary shaping is realized, and the problem of certain degree of collapse caused by the fact that the material is hot is solved;

the correcting wheel arranged in the correcting cavity is provided with a construction plate which is abutted and used for shaping the outer edge of a material, the construction plate is provided with an abutting surface which is suitable for the outer edge of a plastic pipe to be corrected, and a bulge which is matched with the corrugated pipe can be arranged when the corrugated pipe is used so as to be meshed with the periphery of the corrugated pipe for correcting;

benefiting from the structure board through being connected of elastic component and axis pole, the ascending buffering of guide bar axle center direction can be realized following to the spring among the elastic component, and the diameter that adapts to different pipelines realizes the butt adjustment, improves the suitability of product.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural diagram of a carrier according to the present invention;

FIG. 3 is a schematic structural view of a plastic correction mold according to the present invention;

FIG. 4 is a schematic structural view of the primary cooling spray mold of the present invention;

FIG. 5 is a cross-sectional view taken at A-A of FIG. 3 in accordance with the present invention;

FIG. 6 is a cross-sectional view taken at B-B of FIG. 4 in accordance with the present invention;

fig. 7 is an enlarged view of the structure of fig. 5 at C according to the present invention.

In the figure: the device comprises a carrier 1, an assembly slide rail 101, a limiting upright post 102, a limiting angular edge 103, a drainage groove 104, a drainage pipe 105, a shaping correction mould 2, a 201 correction cavity, a 202 limiting groove I, a 3 primary cooling spray mould, a 301 cooling cavity, a 302 limiting groove II, a 303 communicating groove, a 304 blast pipeline, a 4 antifriction roller, a 401 embedding groove, a 5 correction wheel, a 501 assembly groove, a 6 shaft rod, a 7 plastic arc plate I, a 8 plastic arc plate II, a 9 spring, a 901 guide rod, a 10 connecting seat, a 1001 adjusting cavity, an 11 annular spray pipe and a 1101 cooling spray head.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In order to realize the assembly of the shaping correction die 2 and the primary cooling spray die 3 on the carrier 1, the invention provides a plastic pipe appearance correction device for a plastic pipe production line, which comprises the carrier 1 with adjustable height, the shaping correction die 2 and the primary cooling spray die 3, wherein the shaping correction die 2 and the primary cooling spray die 3 are arranged above the carrier 1, and the height adjustment of the carrier 1 can be realized by any height-adjustable supporting device so as to adapt to the height requirement of the production line;

an assembly slide 101 for installing a shaping correction die 2 and an initial cooling spray die 3 is arranged on the upper end face of the carrier 1, a group of limiting upright posts 102 are symmetrically arranged in the middle of the assembly slide 101, limiting angular edges 103 of the limiting shaping correction die 2 and the initial cooling spray die 3 are arranged on two sides of the assembly slide 101, a first limiting groove 202 is formed in the position of the limiting angular edge 103 matched with the shaping correction die 2, a second limiting groove 302 is formed in the position of the limiting angular edge 103 matched with the initial cooling spray die 3, embedding grooves 401 matched with the limiting upright posts 102 are formed in two sides of the connecting position of the shaping correction die 2 and the initial cooling spray die 3, slotted holes for installing antifriction rollers 4 are formed in the side edges of the embedding grooves 401, and outer edge faces of the antifriction rollers 4 extend out of the slotted holes and are matched with the side walls of the limiting upright posts 102 in a rolling mode.

In order to prevent the collapse of the material due to overheating after the straightening of the product, the present invention provides a plastic pipe profile straightening device for a plastic pipe production line as shown in fig. 1, 2, 3, 4, 5 and 6,

the shaping correction die 2 and the primary cooling spray die 3 are internally provided with a correction cavity 201 and a cooling cavity 301 which are respectively provided with an inlet and an outlet, wherein the outlet of the correction cavity 201 is aligned with the inlet of the cooling cavity 301, the correction cavity 201 is integrally columnar, a curved surface with radian is formed along the axial direction of the correction cavity 201, the correction cavity 201 is internally provided with correction wheels 5 of a correction pipeline, and the correction wheels 5 are arranged in an annular array around the axis of the correction cavity 201;

the correcting wheel 5 comprises a shaft lever 6 which is rotatably connected with the shaping correcting die 2, the axis of the shaft lever 6 is perpendicular to the axis of the correcting cavity 201, the outer edge surface of the shaft lever 6 is provided with a plurality of groups of construction plates which are abutted against plastic pipes in an annular array, the construction plates are provided with abutting surfaces which are adapted to the outer edges of the plastic pipes to be corrected, the construction plates are connected with the shaft lever 6 through at least one group of elastic members which are symmetrically arranged, an assembly groove 501 is formed in the position, which is matched with the installation position of the correcting wheel 5, in the correcting cavity 201, the construction plates which form the correcting wheel 5 comprise a first plastic arc plate 7 and a second plastic arc plate 8 which are alternately arranged on the periphery of the shaft lever 6, wherein bulges matched with corrugated pipes are arranged on the first plastic arc plate 7 and the second plastic arc plate 8 which are alternately arranged so as to be engaged with the periphery of the corrugated pipes for correction, and when the pipes enter, the first plastic arc plates 7 and the second plastic arc plates 8 are under the elastic action of the elastic members, pressure is applied from the periphery to the axis direction of the pipeline, and the first plastic arc plate 7 and the second plastic arc plate 8 are arranged in a staggered manner, so that the pressure is continuously and temporarily applied (gaps exist between the first plastic arc plate 7 and the second plastic arc plate 8 which are staggered under the elastic force action of the elastic component);

an annular spray pipe 11 which is coaxial with the cooling cavity 301 is arranged in the cooling cavity 301 of the primary cooling spray mold 3 in the direction close to the inlet, the annular spray pipe 11 is provided with an interface connected with a water pump, the inner edge surface of the cooling cavity 301 is provided with a plurality of cooling spray heads 1101 in an annular array, the bottom end of the cooling cavity 301 is provided with a communication groove 303 communicated with the outside, the carrier 1 is provided with a drainage groove 104 matched with the communication groove 303 and received below the communication groove 303, the end part of the drainage groove 104 is provided with a drainage pipe 105 uniformly extending out of the drainage groove 104, a blast pipeline 304 is arranged in the cooling cavity 301 of the primary cooling spray mold 3 in the direction close to the outlet, the blast pipeline 304 is provided with an interface connected with an air pump, the axis of the cooling spray heads 1101 is inclined with the axis of the cooling cavity 301, the end part faces the outlet of the cooling cavity 301, and a shaping correction mold 2 and the primary cooling spray mold 3 are arranged above the carrier 1, the plastic tubing that corrects is carried out through moulding correction mould 2 realizes preliminary cooling in the first cold spray mould 3 department, realizes preliminary design, solves because of the material is hotter the problem of collapsing that appears the certain degree.

In order to realize elastic buffering during correction so as to ensure the applicability of correction products, the invention provides a plastic pipe appearance correction device for a plastic pipe production line as shown in fig. 3, fig. 4, fig. 5, fig. 6 and fig. 7, wherein elastic members adapted to the construction plates are a spring 9 and a connecting seat 10, the outer edge surface of the shaft lever 6 is constructed with a protrusion connected with the spring 9, the protrusion is provided with a guide rod 901 which is consistent with the axis of the spring 9, an adjusting cavity 1001 for the guide rod 901 to penetrate is arranged in the connecting seat 10, the connecting seat 10 is in sliding fit with the guide rod 901, and the end of the connecting seat 10 is fixedly connected with the end of the spring 9, wherein the spring 9 in the elastic members can realize buffering along the axis of the guide rod 901, so as to realize abutting adjustment by adapting to the diameters of different pipes, and improve the applicability of products.

The working principle of the plastic pipe appearance correcting device for the plastic pipe production line is that before the device is used, the correcting wheel 5 is adapted according to different pipelines, the corrugated pipe needs to be adapted with the first plastic arc plate 7 and the second plastic arc plate 8 which are protruded, the meshing of the peripheral structure of the corrugated pipe can be realized, the circumference of the pipeline in the cross section direction is ensured, when the device is adapted to a common circular pipe, the first plastic arc plate 7 and the second plastic arc plate 8 which are protruded are not needed to be adapted, when the device is used, the pipeline needing to be corrected only needs to be led into the correcting cavity 201, a water pump and an air pump of the adaptive primary cooling spraying mould 3 are started in advance, when the pipeline enters, the first plastic arc plate 7 and the second plastic arc plate 8 apply pressure in the pipeline axis direction from the periphery under the elastic force action of the elastic component, and because the first plastic arc plate 7 and the second plastic arc plate 8 are arranged in a staggered mode, the pressure is continuously and temporarily applied, the fine adjustment of the pipeline section direction is effectively realized, and after the fine adjustment is corrected, the fine adjustment is timely carried out through the cooling spray head 1101 at the annular spray pipe 11, the fine adjustment is carried out, the spray cooling is carried out at the air blowing pipeline 304, and a large amount of water is prevented from being accumulated on the surface of the pipeline.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A plastic pipe appearance correcting device for a plastic pipe production line comprises a height-adjustable carrying platform (1), a shaping correcting die (2) and an initial cooling spraying die (3), wherein the shaping correcting die and the initial cooling spraying die are arranged above the carrying platform (1);

the method is characterized in that: the shaping correction die (2) and the primary cooling spray die (3) are internally provided with a correction cavity (201) and a cooling cavity (301) which are provided with an inlet and an outlet respectively, wherein the outlet of the correction cavity (201) is aligned with the inlet of the cooling cavity (301), the correction cavity (201) is integrally columnar and is a curved surface with radian along the axial direction of the correction cavity (201), a correction wheel (5) of a correction pipeline is arranged in the correction cavity (201), and the correction wheel (5) is arranged around the axis of the correction cavity (201) in an annular array manner;

the correcting wheel (5) comprises a shaft lever (6) which is rotatably connected with the shaping correcting die (2), the axis of the shaft lever (6) is perpendicular to the axis of the correcting cavity (201), the outer edge surface of the shaft lever (6) is provided with a plurality of groups of construction plates for abutting against the plastic pipes in an annular array, each construction plate is provided with an abutting surface suitable for the outer edge of the plastic pipe to be corrected, and each construction plate is connected with the shaft lever (6) through at least one group of symmetrically arranged elastic components;

the elastic component adaptive to the construction plate is a spring (9) and a connecting seat (10), the outer edge surface of the shaft lever (6) is provided with a bulge connected with the spring (9), the bulge is provided with a guide rod (901) consistent with the axis of the spring (9), an adjusting cavity (1001) for the guide rod (901) to penetrate into is arranged in the connecting seat (10), the connecting seat (10) is in sliding fit with the guide rod (901), and the end part of the connecting seat (10) is fixedly connected with the end part of the spring (9);

the structural plates forming the correcting wheel (5) comprise a first plastic arc plate (7) and a second plastic arc plate (8) which are alternately arranged on the periphery of the shaft lever (6), and bulges matched with the corrugated pipe are arranged on the first plastic arc plate (7) and the second plastic arc plate (8) which are alternately arranged so as to be meshed with the periphery of the corrugated pipe for correction.

2. A plastic pipe profile correction device for a plastic pipe production line according to claim 1, wherein: the upper end face of the carrying platform (1) is provided with an assembly slide way (101) for installing a shaping correction die (2) and an initial cooling spray die (3), the middle of the assembly slide way (101) is symmetrically provided with a group of limiting upright posts (102), and two sides of the assembly slide way (101) are provided with limiting corner edges (103) for limiting the shaping correction die (2) and the initial cooling spray die (3).

3. A plastic pipe profile correction device for a plastic pipe production line according to claim 2, wherein: spacing groove one (202) has been seted up to the position of moulding correction mould (2) adaptation spacing angle arris (103), and spacing groove two (302) have been seted up to the position of just cold spray mould (3) adaptation spacing angle arris (103), the gomphosis groove (401) of the spacing stand of adaptation (102) have all been seted up to moulding correction mould (2) and the both sides of just cold spray mould (3) hookup location, the slotted hole that supplies antifriction gyro wheel (4) installation is seted up to the side in gomphosis groove (401), the outer fringe face part of antifriction gyro wheel (4) is visited outside the slotted hole and is cooperated with the lateral wall roll of spacing stand (102).

4. A plastic pipe profile correction device for a plastic pipe production line according to claim 1, wherein: an assembling groove (501) is formed in the position, matched with the installation position of the correcting wheel (5), in the correcting cavity (201).

5. A plastic pipe profile correction device for a plastic pipe production line according to claim 3, wherein: be close to the entry direction in cooling chamber (301) of just cold spray mold (3) and be equipped with annular shower (11) coaxial with cooling chamber (301), annular shower (11) have the interface of being connected with the water pump, and the inner edge of cooling chamber (301) personally submits annular array and is equipped with a plurality of cooling shower nozzles (1101).

6. A device for straightening the profile of plastic tubes for a plastic tube production line according to claim 5, characterized in that: the bottom end of the cooling cavity (301) is provided with a communicating groove (303) communicated to the outside, a drainage groove (104) which is connected to the lower portion of the communicating groove (303) in a matched mode is formed in the position of the carrier (1) and the communicating groove (303), and a drainage pipe (105) which extends to the outside of the drainage groove (104) in a consistent mode is arranged at the end portion of the drainage groove (104).

7. The apparatus for straightening the profile of plastic tubes for a plastic tube production line according to claim 6, characterized in that: a blast pipe (304) is arranged in a cooling cavity (301) of the primary cooling spraying mold (3) and close to the outlet direction, and the blast pipe (304) is provided with a connector connected with an air pump.

8. A device for straightening the profile of plastic tubes for a plastic tube production line according to claim 5, characterized in that: the axis of the cooling spray head (1101) and the axis of the cooling cavity (301) are inclined, and the end part of the cooling spray head faces to the outlet of the cooling cavity (301).