CN216728992U

CN216728992U - Flanging device for plastic-lined steel ring

Info

Publication number: CN216728992U
Application number: CN202220438871.1U
Authority: CN
Inventors: 卢志超; 王永琪; 陈志刚; 李海宝
Original assignee: Tianjin You Fa Pipeline Technology Co ltd; Tianjin Youfa Stainless Steel Pipe Co ltd; Tianjin Youfa Steel Pipe Group Co Ltd
Current assignee: Tianjin You Fa Pipeline Technology Co ltd; Tianjin Youfa Stainless Steel Pipe Co ltd; Tianjin Youfa Steel Pipe Group Co Ltd
Priority date: 2022-03-02
Filing date: 2022-03-02
Publication date: 2022-06-14
Anticipated expiration: 2032-03-02

Abstract

The utility model belongs to the technical field of plastic-coated lining pipes, and particularly relates to a plastic-coated lining steel ring flanging device which comprises a punching table and an upper positioning table arranged above the punching table, wherein four guide pillars are fixedly arranged between the punching table and the upper positioning table, a movable plate seat is arranged below the upper positioning table on each guide pillar in a sliding manner, a hydraulic cylinder is fixedly arranged at the middle position of the top of the upper positioning table, and the output end of the hydraulic cylinder is fixedly connected with the movable plate seat through a hydraulic telescopic rod; through setting up two sets of moulds, including first mould group and second mould group, wherein, first mould group is used for outwards turning over the steel ring edge and turns over forty-five degrees, can dash the port position of steel ring to outwards buckling forty-five degrees in advance, and second mould group is used for outwards turning over the steel ring edge and turns over a circle arc, so, after twice punching presses, the steel ring tip can be dashed out curved turn-ups, and turn-ups buckle department outer wall smooth, and no processing vestige, pleasing to the eye effectual.

Description

Flanging device for plastic-lined steel ring

Technical Field

The utility model belongs to the technical field of plastic-coated lining pipes, and particularly relates to a plastic-coated lining steel ring flanging device.

Background

The plastic-lined pipe is based on a common carbon steel pipe, lined with thermoplastic plastics with excellent chemical properties, and formed by cold-drawing compounding or rotational molding, has the characteristics of mechanical properties of the steel pipe, corrosion resistance of the plastic pipe, scale inhibition and difficult growth of microorganisms, and is an ideal pipeline for conveying media such as acid, alkali, salt, corrosive gas and the like.

The inner protection ring is required to be added when the plastic-coated pipe is subjected to groove pressing, the end face of the protection ring is required to be bent outwards and turned over, the existing process is one-time punch forming at present, machining traces can be remained on the bending face of the plastic-coated pipe, and the surface of the bending portion is not smooth enough.

SUMMERY OF THE UTILITY MODEL

The utility model provides a flanging device for a plastic-lined steel ring, which aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the flanging device for the steel ring coated with the plastic lining comprises a punching table and an upper positioning table arranged above the punching table, wherein four guide pillars are fixedly arranged between the punching table and the upper positioning table, a movable plate seat is slidably arranged below the upper positioning table on the guide pillars, a hydraulic cylinder is fixedly arranged at the middle position of the top of the upper positioning table, the output end of the hydraulic cylinder is fixedly connected with the movable plate seat through a hydraulic telescopic rod, an upper die seat is fixedly arranged at the bottom of the movable plate seat, a lower die seat is fixedly arranged at the top of the punching table, tool fixtures are fixedly arranged at the bottom of the upper die seat and the top of the lower die seat, a first die set and a second die set are fixedly arranged between the upper die seat and the lower die seat through the tool fixtures, the first die set comprises a first upper die fixedly arranged at the bottom of the upper die seat and a first lower die fixedly arranged at the top of the lower die seat, the top of first lower mould is equipped with first punching press groove, the fixed bottom of first last mould be equipped with first punching press groove complex first punching press piece for turn over the steel ring edge 45 outwards, second mould group is including fixed the setting be in go up the mould and fixed the setting in the second of upper die base bottom is in the second lower mould at die holder top, the top of second lower mould is equipped with second punching press groove, the fixed bottom of going up the mould be equipped with second punching press groove complex second punching press piece, and be used for turning over the steel ring edge outwards and be arc, the bottom of first lower mould, second lower mould is fixed with the lower bolster, the top of first last mould, second last mould is fixed with the cope match-plate pattern.

Preferably, the first lower die is internally provided with a first accommodating cavity for accommodating the steel ring, and the sum of the height of the first accommodating cavity and the height of the first stamping groove is equal to the height of the steel ring.

Preferably, an included angle between the first stamping groove and the inner wall of the first lower die is forty-five degrees.

Preferably, the first stamping block is a circular truncated cone, and an included angle between the side wall and the bottom surface of the first stamping block is forty-five degrees.

Preferably, a second containing cavity for containing the steel ring is formed in the second lower die, and the second containing cavity is equal in height to the first containing cavity.

Preferably, the second stamping groove has a track with a semicircular convex section on the inner circumference.

Preferably, the edge of the second stamping block is provided with an inwards concave semicircular groove corresponding to the rail.

Compared with the prior art, the utility model has the beneficial effects that:

the steel ring edge bending die comprises a first die set and a second die set, wherein the first die set is used for bending the edge of a steel ring outwards by forty-five degrees, the port part of the steel ring can be punched to be bent outwards by forty-five degrees in advance, and the second die set is used for bending the edge of the steel ring outwards by arc-shaped.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

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

FIG. 2 is a schematic perspective view of a mold according to the present invention;

FIG. 3 is a schematic cross-sectional view of a first die set according to the present invention;

fig. 4 is a schematic sectional view of a second die set according to the present invention.

In the figure: 1. a punching stage; 11. a guide post; 12. an upper positioning table; 13. a movable plate seat; 14. an upper die holder; 15. a lower die holder; 16. a tooling fixture; 2. a hydraulic cylinder; 21. a hydraulic telescopic rod; 3. a first die set; 31. a first lower die; 311. a first stamping groove; 312. a first cavity; 32. a first upper die; 321. a first punch block; 4. a second die set; 41. a second lower die; 411. a second stamped groove; 412. a second cavity; 42. a second upper die; 421. a second punch block; 5. mounting a template; 6. and a lower template.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides the following technical solutions: a flanging device for a plastic-lined steel ring comprises a punching table 1 and an upper positioning table 12 arranged above the punching table 1, wherein four guide posts 11 are fixedly arranged between the punching table 1 and the upper positioning table 12, a movable plate seat 13 is slidably arranged on the guide posts 11 and positioned below the upper positioning table 12, a hydraulic cylinder 2 is fixedly arranged at the middle position of the top of the upper positioning table 12, the output end of the hydraulic cylinder 2 is fixedly connected with the movable plate seat 13 through a hydraulic telescopic rod 21, an upper die seat 14 is fixedly arranged at the bottom of the movable plate seat 13, a lower die seat 15 is fixedly arranged at the top of the punching table 1, tool fixtures 16 are fixedly arranged at the bottom of the upper die seat 14 and the top of the lower die seat 15, a first die set 3 and a second die set 4 are fixedly arranged between the upper die seat 14 and the lower die seat 15 through the tool fixtures 16, the first die set 3 comprises a first upper die 32 fixedly arranged at the bottom of the upper die seat 14 and a first lower die 31 fixedly arranged at the top of the lower die seat 15, the top of the first lower die 31 is provided with a first punching groove 311, the bottom of the first upper die 32 is fixedly provided with a first punching block 321 matched with the first punching groove 311, and is used for turning the edge of the steel ring outwards by 45 degrees, the second die set 4 comprises a second upper die 42 fixedly arranged at the bottom of the upper die holder 14 and a second lower die 41 fixedly arranged at the top of the lower die holder 15, the top of the second lower die 41 is provided with a second punching groove 411, the bottom of the second upper die 42 is fixedly provided with a second punching block 421 matched with the second punching groove 411, and is used for turning the edge of the steel ring outwards by arc shape, the bottoms of the first lower die 31 and the second lower die 41 are fixed with lower templates 6, and the tops of the first upper die 32 and the second upper die 42 are fixed with upper templates 5.

In this embodiment, two sets of dies are provided, including a first die set 3 and a second die set 4, in which the first die set 3 includes a first upper die 32 and a first lower die 31, a first stamping groove 311 is provided at the top of the first lower die 31, a first stamping block 321 matched with the first stamping groove 311 is fixedly provided at the bottom of the first upper die 32, and is used for turning the edge of the steel ring 45 ° outwards, and the port of the steel ring can be stamped to be bent 45 ° outwards in advance, the second die set 4 includes a second upper die 42 and a second lower die 41, a second stamping groove 411 is provided at the top of the second lower die 41, a second stamping block 421 matched with the second stamping groove 411 is fixedly provided at the bottom of the second upper die 42, and is used for turning the edge of the steel ring outwards into an arc shape, so that after two stamping, the end of the steel ring can be stamped with an arc-shaped flange, and the outer wall of the flange bending part is smooth and has no processing trace, the beautiful effect is good.

Specifically, the first cavity 312 for containing the steel ring is arranged in the first lower die 31, the sum of the heights of the first cavity 312 and the first stamping groove 311 is equal to the height of the steel ring, the second cavity 412 for containing the steel ring is arranged in the second lower die 41, and the height of the second cavity 412 is equal to that of the first cavity 312.

Specifically, the included angle between the first stamping groove 311 and the inner wall of the first lower die 31 is forty-five degrees, the first stamping block 321 is a circular truncated cone, the included angle between the side wall of the first stamping block 321 and the bottom surface of the first stamping block is forty-five degrees, when the steel ring stamping device is used, the hydraulic cylinder 2 drives the upper die plate 5 to move downwards through the hydraulic telescopic rod 21, so that the first stamping block 321 at the bottom of the first upper die 32 moves towards the first stamping groove 311, the end portion of the steel ring is stamped to be turned outwards by 45 degrees, and the purpose of pre-stamping to be bent outwards by 45 degrees is achieved.

Specifically, the inboard a week of second punching press groove 411 has the cross-section for semicircular bulge's track, it is specific, the edge of second punching press piece 421 corresponds the track and has the semicircular groove of indent, when using, drive cope match-plate pattern 5 downstream through hydraulic telescoping rod 21 by pneumatic cylinder 2, make second punching press piece 421 of mould 42 bottom on the second move to second punching press groove 411 direction, and continue outside extrusion with the turn-over part of steel ring, and extrude in the semicircular groove and form slick and sly arc, it is smooth to make turn-ups bending department outer wall, no processing vestige, and aesthetic effect is good.

The working principle and the using process of the utility model are as follows: when in use, steel rings are sequentially placed in the first lower die 31 and the second lower die 41, the hydraulic cylinder 2 drives the upper die plate 5 to move downwards through the hydraulic telescopic rod 21, so that the first punching block 321 at the bottom of the first upper die 32 moves towards the first punching groove 311, the end part of the steel ring is punched and folded outwards by 45 degrees, the purpose of punching and bending outwards by 45 degrees in advance is achieved, the end part of the steel ring can be punched and folded outwards by 45 degrees in the first containing cavity 312, accordingly, the port part of the steel ring can be punched and bent outwards by 45 degrees in advance, the second punching block 421 at the bottom of the second upper die 42 moves towards the second punching groove 411, the folded part of the steel ring is continuously extruded outwards and is extruded in the semicircular groove to form a smooth circular arc shape, then the steel ring is taken out and folded in the second containing cavity 412, the edge of the steel ring is folded outwards, and the outer wall of the folded part is smooth, no processing trace and good beautiful effect.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

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 changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The plastic-coated steel ring flanging device is characterized in that: including punching press platform (1) and setting up last location platform (12) of punching press platform (1) top, fixed mounting has four guide pillars (11) between punching press platform (1) and last location platform (12), lie in on guide pillar (11) the below slidable mounting of going up location platform (12) has movable plate seat (13), the top intermediate position department fixed mounting of going up location platform (12) has pneumatic cylinder (2), the output of pneumatic cylinder (2) pass through hydraulic telescoping rod (21) with movable plate seat (13) fixed connection, the bottom fixed mounting of movable plate seat (13) has upper die base (14), the top fixed mounting of punching press platform (1) has lower bolster (15), the bottom of upper die base (14) and the top of lower bolster (15) all fixed mounting have frock clamp (16), pass through between upper die base (14) and lower bolster (15) frock clamp (16) fixed mounting have first mould group (3) ) And a second die set (4), wherein the first die set (3) comprises a first upper die (32) fixedly arranged at the bottom of the upper die holder (14) and a first lower die (31) fixedly arranged at the top of the lower die holder (15), a first stamping groove (311) is formed in the top of the first lower die (31), a first stamping block (321) matched with the first stamping groove (311) is fixedly arranged at the bottom of the first upper die (32) and is used for turning the edge of the steel ring outwards by 45 degrees, the second die set (4) comprises a second upper die (42) fixedly arranged at the bottom of the upper die holder (14) and a second lower die (41) fixedly arranged at the top of the lower die holder (15), a second stamping groove (411) is formed in the top of the second lower die (41), and a second stamping block (421) matched with the second stamping groove (411) is fixedly arranged at the bottom of the second upper die (42), and the edge of the steel ring is turned outwards to form a circular arc shape, the bottom of the first lower die (31) and the bottom of the second lower die (41) are fixedly provided with lower templates (6), and the top of the first upper die (32) and the top of the second upper die (42) are fixedly provided with upper templates (5).

2. The liner-coated plastic steel ring flanging device of claim 1, which is characterized in that: the first lower die (31) is internally provided with a first cavity (312) for accommodating the steel ring, and the sum of the height of the first cavity (312) and the height of the first stamping groove (311) is equal to the height of the steel ring.

3. The liner-coated plastic steel ring flanging device of claim 2, which is characterized in that: the included angle between the first stamping groove (311) and the inner wall of the first lower die (31) is forty-five degrees.

4. The liner-coated plastic steel ring flanging device of claim 3, which is characterized in that: the first stamping block (321) is a circular truncated cone, and an included angle between the side wall and the bottom surface of the first stamping block (321) is forty-five degrees.

5. The liner-coated plastic steel ring flanging device of claim 2, which is characterized in that: the second lower die (41) is internally provided with a second containing cavity (412) for containing a steel ring, and the second containing cavity (412) is as high as the first containing cavity (312).

6. The liner-coated plastic steel ring flanging device of claim 1, which is characterized in that: the inner circumference of the second stamping groove (411) is provided with a track with a semicircular convex section.

7. The liner-coated plastic steel ring flanging device of claim 6, which is characterized in that: the edge of the second stamping block (421) is provided with an inwards concave semicircular groove corresponding to the rail.