CN113400550A

CN113400550A - Special-shaped pipe extrusion molding die and using method thereof

Info

Publication number: CN113400550A
Application number: CN202110692868.2A
Authority: CN
Inventors: 马勇; 张世兵; 王祖林; 姚艳芳; 韩吉莉; 胡国庆
Original assignee: Anhui Yufa Plastic Industry Co ltd
Current assignee: Anhui Yufa Plastic Industry Co ltd
Priority date: 2021-06-22
Filing date: 2021-06-22
Publication date: 2021-09-17

Abstract

The invention discloses an extrusion molding die for a special-shaped pipe and a using method thereof, and relates to the technical field of dies. The cooperation through supplementary material subassembly of taking off is used, there is the clamping-force through first splint and between the last movable clamp plate, clamping-force through between second splint and the lower fixation clamp plate, the position of second locating plate is confirmed, transverse distance between first locating plate and the second locating plate drives under the effect of third pneumatic cylinder, the position of inner mold core is confirmed this moment, the precision is guaranteed, and the upset of upper fixed plate has increased and has got the material space, the structure of having solved the mechanical tubes is complicated relatively, the different sex pipe is after production, complicated structure just causes the drawing of patterns difficulty of product easily, it gets the piece to be difficult to carry out the drawing of patterns from the product after will producing on the mould, fixed mold core structure has more fixed the space of getting the piece, the product is got the piece dumb, influence the problem of production process.

Description

Special-shaped pipe extrusion molding die and using method thereof

Technical Field

The invention relates to the technical field of dies, in particular to an extrusion molding die for a special-shaped pipe and a using method thereof.

Background

Moulds (Mule) are used for obtaining various moulds and tools of required products by injection moulding, blow moulding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production. In short, a mold is a tool used to make a shaped article, the tool being made up of various parts, different molds being made up of different parts. The processing of the appearance of an article is realized mainly through the change of the physical state of a formed material. The element has the name of "industrial mother".

The blank is formed into a tool with a specific shape and size under the action of external force. The method is widely applied to blanking, die forging, cold heading, extrusion, powder metallurgy part pressing, pressure casting and the forming processing of compression molding or injection molding of products such as engineering plastics, rubber, ceramics and the like. The die has a specific contour or cavity shape, and the blank can be separated (blanked) according to the contour shape by applying the contour shape with the cutting edge. The blank can obtain a corresponding three-dimensional shape by using the shape of the inner cavity. The mold generally comprises a movable mold and a fixed mold (or a male mold and a female mold), which can be separated or combined. When the blank is closed, the blank is injected into the die cavity for forming. The die is a precise tool, has a complex shape, bears the expansion force of a blank, has higher requirements on structural strength, rigidity, surface hardness, surface roughness and processing precision, and the development level of die production is one of important marks of the mechanical manufacturing level.

The traditional mould for the special-shaped pipe has certain defect when in use, and because the structural characteristic of the special-shaped pipe, the structure of the special-shaped pipe is relatively complex, so that the complex structure of the special-shaped pipe is difficult to demold after production, the product after production is difficult to demold and take out, the fixed mould core structure is more a fixed space for taking out the product, and the product taking out is inflexible and affects the production process.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides an opposite-shaped pipe extrusion molding die and a using method thereof, and solves the problems in the documents.

In order to achieve the purpose, the invention is realized by the following technical scheme: an opposite-shaped pipe extrusion molding die comprises an upper die assembly and a lower die assembly, wherein the upper die assembly and the lower die assembly are installed in a matched mode, and an auxiliary stripping assembly is fixedly arranged on one side of the lower die assembly;

the auxiliary stripping component comprises a second positioning plate and a lower fixing clamp plate, a third hydraulic cylinder is fixedly arranged at the bottom of the second positioning plate, one side of the second positioning plate is movably provided with a first positioning plate through a third hydraulic cylinder, the top end surface of the first positioning plate is fixedly provided with a lower fixing plate, the top of the lower fixed plate is rotatably provided with an upper fixed plate, the side wall of the second positioning plate, which is far away from the first positioning plate, is provided with a clamping groove, a first hydraulic cylinder is fixedly arranged on the upper surface of the lower fixed splint, an upper movable splint is fixedly arranged on the moving end of the first hydraulic cylinder, the upper surface of the lower fixed splint is fixedly provided with a guide post, the upper movable splint is sleeved on the guide post, the guide post is equipped with first splint and second splint on the surface respectively, be provided with the second pneumatic cylinder between first splint and the second splint.

As a further scheme of the invention: the guide posts are arranged on the upper surface of the lower fixing clamping plate and are symmetrically arranged, the tops of the two guide posts are fixed through the fixing block, the guide posts provide the position moving direction, and transverse displacement does not exist.

As a further scheme of the invention: the upper die assembly comprises an upper die base, an upper die is fixedly arranged on the surface of the upper die base, and a basic structure of the die is arranged between the upper die base and the upper die.

As a further scheme of the invention: the lower die assembly comprises a lower die base, a lower die is fixedly arranged at the top of the lower die base, an inner die core is arranged on the upper side of the lower die, and the surface profile of the inner die core needs to be subjected to finish machining to ensure the precision of a produced product.

As a further scheme of the invention: the inner mold core is fixed on the upper fixing plate, and the upper fixing plate can be turned over, so that the material taking space is enlarged.

As a further scheme of the invention: the bottom surface of the lower die holder is provided with a groove matched with the lower fixing clamping plate, so that the later clamping is ensured not to generate displacement and is limited in the groove.

The use method of the special pipe extrusion molding die comprises the following steps:

step S1: the die is installed, debugging is carried out, and the preparation work is finished;

step S2: mounting the auxiliary stripping component on the lower die base, and debugging;

step S3: determining the positions of the auxiliary stripping assembly and the parts thereof on the inner mold core;

step S4: and (3) carrying out die assembly production by using a die, overturning the inner die core, and demoulding the product.

Wherein, step S1 specifically includes: respectively installing the upper die assembly and the lower die assembly on a punching machine, debugging and finishing the preparation work;

step S2 specifically includes: assembling an inner mold core on an upper fixing plate, installing an auxiliary stripping assembly on one side of the bottom of a lower mold base, enabling a groove in the bottom of the lower mold base to be matched with a lower fixing clamp plate on the auxiliary stripping assembly, and clamping an upper moving clamp plate in a second positioning plate;

step S3 specifically includes: the first hydraulic cylinder is driven, the upper movable clamping plate and the lower fixed clamping plate are clamped by longitudinal force generated by the first hydraulic cylinder, the first clamping plate and the second clamping plate on the guide post are expanded outwards under the action of the second hydraulic cylinder, clamping force exists between the first clamping plate and the upper movable clamping plate, clamping force exists between the second clamping plate and the lower fixed clamping plate, the position of the second positioning plate is determined, the position of the third hydraulic cylinder is started at the moment, the transverse distance between the first positioning plate and the second positioning plate is driven under the action of the third hydraulic cylinder, and the position of the inner mold core is determined at the moment;

step S4 specifically includes: the upper die component and the lower die component are subjected to die assembly production, after the production, the side walls of the upper fixing plate and the lower fixing plate are connected through the hydraulic cylinder, so that the upper fixing plate and the lower fixing plate are driven by the hydraulic cylinder to overturn, the inner die core is jacked up, and the product is demoulded.

Advantageous effects

The invention provides an extrusion molding die for a special-shaped pipe and a using method thereof. Compared with the prior art, the method has the following beneficial effects:

1. a plastic extruding mould for shaping the special-shaped tube is composed of a lower fixing plate, a first hydraulic cylinder fixed to the upper surface of said lower fixing plate, an upper movable plate fixed to the moving end of said first hydraulic cylinder, a guide post fixed to the upper surface of said lower fixing plate, a first clamping plate and a second clamping plate respectively sleeved to the surface of said guide post, a second hydraulic cylinder between said first and second clamping plates, and a fixed mould core fixed to the upper surface of said mould core, the product is not flexible to take the parts, and the production process is influenced.

2. The utility model provides an installation debugging that opposite sex pipe extrusion molding mould and application method thereof through supplementary the installation of taking off the material subassembly for it can the different models key, reduces manufacturing cost, improves the mould precision, and then satisfies manufacturer's user demand.

Drawings

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

FIG. 2 is a schematic view of the upper die assembly of the present invention;

FIG. 3 is a schematic view of the construction of the lower die assembly and the auxiliary stripping assembly of the present invention;

FIG. 4 is a schematic view of the underside of the lower die assembly of the present invention;

FIG. 5 is an enlarged view of the structure at A in FIG. 3;

fig. 6 is an enlarged view of the structure at B in fig. 4.

In the figure: 1. an upper die assembly; 11. an upper die holder; 12. an upper die; 2. a lower die assembly; 21. a lower die holder; 22. a lower die; 23. an inner mold core; 3. an auxiliary stripping assembly; 31. an upper fixing plate; 32. a lower fixing plate; 33. a first positioning plate; 34. a second positioning plate; 35. moving the clamping plate upwards; 36. a first hydraulic cylinder; 37. a lower fixed splint; 38. a first splint; 39. a second hydraulic cylinder; 310. a guide post; 311. a second splint; 312. and a third hydraulic cylinder.

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. 1-6, the present invention provides a technical solution: an opposite-shaped pipe extrusion molding die comprises an upper die component 1 and a lower die component 2, wherein the upper die component 1 and the lower die component 2 provide possibility for forming a die for a product, the upper die component 1 and the lower die component 2 are installed in a matched mode, which is the assembly requirement of die accuracy, and an auxiliary stripping component 3 is fixedly arranged on one side of the lower die component 2;

the auxiliary stripping component 3 comprises a second positioning plate 34 and a lower fixed clamp plate 37, the second positioning plate 34 is fixed, a third hydraulic cylinder 312 is fixedly arranged at the bottom of the second positioning plate 34, the third hydraulic cylinder 312 can displace the first positioning plate 33, the first positioning plate 33 is movably arranged on one side of the second positioning plate 34 through the third hydraulic cylinder 312, a lower fixed plate 32 is fixedly arranged on the top end surface of the first positioning plate 33, an upper fixed plate 31 is rotatably arranged at the top of the lower fixed plate 32, the material taking space of the inner mold core 23 can be enlarged by the overturning of the upper fixed plate 31, a clamping groove is formed in the side wall of the second positioning plate 34, which is far away from the first positioning plate 33, a first hydraulic cylinder 36 is fixedly arranged on the upper surface of the lower fixed clamp plate 37, and an upper movable clamp plate 35 is fixedly arranged on the moving end of the first hydraulic cylinder 36, the fixed guide post 310 that is provided with on the upper surface of lower fixed splint 37, guide post 310 lets the removal of first splint 38 and second splint 311 provide the direction, it establishes on guide post 310 to go up movable splint 35 cover, guide post 310 overlaps respectively on the surface and is equipped with first splint 38 and second splint 311, be provided with second pneumatic cylinder 39 between first splint 38 and the second splint 311, there is clamping-force between first splint 38 and the last movable splint 35, guide post 310 is provided with two on the upper surface of lower fixed splint 37 to the symmetry sets up, and it is fixed that the fixed block is passed through at the top of two guide posts 310, and reverse fastening force through first pneumatic cylinder 36 and second pneumatic cylinder 39, the vertical power that first pneumatic cylinder 36 produced will go up and move and press from both sides tightly between splint 35 and the lower fixed splint 37, realizes accurate positioning and the tight demand of clamp.

The upper die assembly 1 comprises an upper die base 11, an upper die 12 is fixedly arranged on the surface of the upper die base 11, the upper die base 11 and the upper die 12 are basic die components, and the overall production structure of the die is realized.

The lower die assembly 2 comprises a lower die base 21, a lower die 22 is fixedly arranged at the top of the lower die base 21, an inner die core 23 is arranged on the upper side of the lower die 22, the inner die core 23 is fixed on an upper fixing plate 31, a groove matched with a lower fixing clamping plate 37 is formed in the surface of the bottom of the lower die base 21, and the surface profile of the inner die core 23 needs to be subjected to finish machining to ensure the precision of a product.

step S1: respectively installing the upper die assembly 1 and the lower die assembly 2 on a punching machine, debugging and finishing the preparation work;

step S2: assembling the inner mold core 23 on the upper fixing plate 31, installing the auxiliary stripping component 3 on one side of the bottom of the lower mold base 21, enabling the groove at the bottom of the lower mold base 21 to be matched with the lower fixing clamp plate 37 on the auxiliary stripping component 3, and clamping the upper moving clamp plate 35 in the second positioning plate 34;

step S3: the first hydraulic cylinder 36 is driven, the longitudinal force generated by the first hydraulic cylinder 36 clamps the upper movable clamping plate 35 and the lower fixed clamping plate 37, meanwhile, the first clamping plate 38 and the second clamping plate 311 on the guide column 310 are expanded outwards under the action of the second hydraulic cylinder 39, clamping force exists between the first clamping plate 38 and the upper movable clamping plate 35, clamping force exists between the second clamping plate 311 and the lower fixed clamping plate 37, the position of the second positioning plate 34 is determined, the position of the third hydraulic cylinder 312 is started at the moment, the transverse distance between the first positioning plate 33 and the second positioning plate 34 is driven under the action of the third hydraulic cylinder 312, and the position of the inner mold core 23 is determined at the moment;

step S4: the upper die assembly 1 and the lower die assembly 2 are subjected to die assembly production, after production, the side walls of the upper fixing plate 31 and the lower fixing plate 32 are connected through the hydraulic cylinder, so that the upper fixing plate 31 and the lower fixing plate 32 are driven by the hydraulic cylinder to overturn, the inner die core 23 is jacked up, and the product is demoulded.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

Claims

1. The utility model provides a foreign matter pipe extrusion molding mould, includes mould subassembly (1) and lower mould subassembly (2), its characterized in that: the upper die assembly (1) and the lower die assembly (2) are installed in a matched mode, and an auxiliary stripping assembly (3) is fixedly arranged on one side of the lower die assembly (2);

the auxiliary stripping assembly (3) comprises a second positioning plate (34) and a lower fixing clamp plate (37), a third hydraulic cylinder (312) is fixedly arranged at the bottom of the second positioning plate (34), a first positioning plate (33) is movably arranged on one side of the second positioning plate (34) through the third hydraulic cylinder (312), a lower fixing plate (32) is fixedly arranged on the end face of the top of the first positioning plate (33), an upper fixing plate (31) is rotatably arranged at the top of the lower fixing plate (32), a clamping groove is formed in the side wall of the second positioning plate (34) on one side deviating from the first positioning plate (33), a first hydraulic cylinder (36) is fixedly arranged on the upper surface of the lower fixing clamp plate (37), an upper moving clamp plate (35) is fixedly arranged on the moving end of the first hydraulic cylinder (36), a guide column (310) is fixedly arranged on the upper surface of the lower fixing clamp plate (37), go up movable clamp plate (35) cover and establish on guide post (310), the cover is equipped with first splint (38) and second splint (311) respectively on the surface of guide post (310), be provided with second hydraulic cylinder (39) between first splint (38) and second splint (311).

2. The opposite-tube extrusion molding die of claim 1, wherein: two guide posts (310) are arranged on the upper surface of the lower fixing clamping plate (37) and are symmetrically arranged, and the tops of the two guide posts (310) are fixed through fixing blocks.

3. The use method of the special-shaped pipe extrusion molding die is characterized in that: the method comprises the following steps:

step S2: the auxiliary stripping component (3) is arranged on the lower die seat (21) and is debugged;

step S3: determining the position of the auxiliary stripping component (3) and parts thereof on the inner mold core (23);

step S4: and (3) carrying out die assembly production on the die, turning over the inner die core (23), and demoulding the product.

4. The use method of the opposite-tube extrusion molding die as claimed in claim 3, wherein: step S1 specifically includes: and respectively installing the upper die assembly (1) and the lower die assembly (2) on a punching machine, debugging and finishing the preparation work.

5. The use method of the opposite-tube extrusion molding die as claimed in claim 3, wherein: step S2 specifically includes: the inner mold core (23) is assembled on the upper fixing plate (31), the auxiliary stripping component (3) is installed on one side of the bottom of the lower mold base (21), the groove in the bottom of the lower mold base (21) is matched with the lower fixing clamp plate (37) on the auxiliary stripping component (3), and meanwhile, the upper moving clamp plate (35) is clamped in the second positioning plate (34).

6. The use method of the opposite-tube extrusion molding die as claimed in claim 3, wherein: step S3 specifically includes: the first hydraulic cylinder (36) is driven, the longitudinal force generated by the first hydraulic cylinder (36) clamps the upper movable clamping plate (35) and the lower fixed clamping plate (37), meanwhile, the first clamping plate (38) and the second clamping plate (311) on the guide column (310) are expanded outwards under the action of the second hydraulic cylinder (39), clamping force exists between the first clamping plate (38) and the upper movable clamping plate (35), clamping force exists between the second clamping plate (311) and the lower fixed clamping plate (37), the position of the second positioning plate (34) is determined, the position of the third hydraulic cylinder (312) is started at the moment, the transverse distance between the first positioning plate (33) and the second positioning plate (34) is driven under the action of the third hydraulic cylinder (312), and the position of the inner mold core (23) is determined at the moment.

7. The use method of the opposite-tube extrusion molding die as claimed in claim 3, wherein: step S4 specifically includes: the upper die component (1) and the lower die component (2) are subjected to die assembly production, after production, the side walls of the upper fixing plate (31) and the lower fixing plate (32) are connected through the hydraulic cylinder, so that the upper fixing plate (31) and the lower fixing plate (32) are driven by the hydraulic cylinder to turn over, the inner die core (23) is jacked up, and the product is demoulded.