CN213134997U

CN213134997U - Multi-thimble extrusion pin for auxiliary mold stripping of casting mold device

Info

Publication number: CN213134997U
Application number: CN202021466816.0U
Authority: CN
Inventors: 陈昊; 纪旭
Original assignee: Changsha Boda Science And Engineering Co ltd
Current assignee: Changsha Boda Science And Engineering Co ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2021-05-07
Anticipated expiration: 2030-07-23

Abstract

The utility model discloses a supplementary demolding of mould device is with many thimbles extrusion pin belongs to the mould field, including connecting piece, boss, at least one thimble assembly, at least one stop collar and locating plate, connecting piece and hydraulic cylinder's output shaft fixed connection, the lower extreme and the boss fixed connection of connecting piece, the top of thimble assembly all with the bottom fixed connection of boss, the stop collar cover is established on the thimble assembly, the top of stop collar and the bottom fixed connection of boss. The utility model discloses a cooperation of boss, thimble assembly, stop collar, locating plate and locating hole is used, can make a plurality of thimble assemblies target in place simultaneously, withdraws from simultaneously, avoids appearing the condition that the card went on, moreover because the bottom of stop collar and the distance at locating plate top are for being less than hydraulic cylinder's stroke, and then can prevent that hydraulic cylinder's card is dead for hydraulic cylinder resets easily, the utility model has the advantages of reasonable design simply, convenient to use is swift, has very strong practicality.

Description

Multi-thimble extrusion pin for auxiliary mold stripping of casting mold device

Technical Field

The utility model belongs to the technical field of the mould, specifically be a supplementary many thimbles extrusion pin for demolding of casting mould device.

Background

The die casting is a metal casting process, which is characterized in that high-temperature liquid metal is pressed into a die cavity by high pressure, the structure of the die cavity is the same as that of a product to be formed, and the liquid metal in the die cavity is taken out after being cooled and solidified, so that a workpiece to be formed is obtained. Chinese patent with patent number CN201820070148.6 discloses a mould with extrusion round pin, including preceding template, back template, be equipped with front mould benevolence in the preceding template, be equipped with back mould benevolence in the back template, form the die cavity between preceding, the back mould benevolence, the inside extrusion round pin of wearing to be equipped with vertical setting of back mould benevolence, extrusion round pin one end stretches into in the die cavity, the extrusion round pin other end links to each other with the connecting rod, the connecting rod bottom is connected with the hydro-cylinder through the hydro-cylinder joint, the hydro-cylinder sets up on the bottom plate, the extrusion round pin with the coaxial setting of connecting rod. The utility model discloses simple structure, production efficiency is high, guarantees product quality, has reduced mould cost of manufacture. The patent is easy to cause the condition that the stress of the product is uneven.

Generally need take out after the mould is accomplished, need utilize the supplementary demolding of extrusion round pin this moment, present extrusion round pin adopts single thimble extrusion mode, and this makes the atress uneven, difficult drawing of patterns, if adopt many thimbles mode, its spacing mode is that hydraulic cylinder output shaft arrives terminal mode, will cause hydraulic cylinder's card to die under this kind of condition, is difficult for reseing.

SUMMERY OF THE UTILITY MODEL

The utility model aims at above problem, provide a supplementary many thimbles of demolding of mould device are with extrusion round pin, can be when the demolding for the product atress is even, and easy drawing of patterns, and the hydraulic cylinder's that is difficult for making card is dead, is favorable to prolonging hydraulic cylinder's life.

In order to realize the above purpose, the utility model adopts the technical scheme that: the utility model provides a supplementary demolding of mould device is with many thimbles extrusion pin, the supplementary demolding of extrusion pin cooperation hydraulic cylinder, includes connecting piece, uide bushing, at least one thimble subassembly, at least one stop collar and locating plate, connecting piece and hydraulic cylinder's output shaft fixed connection, the lower extreme and the uide bushing fixed connection of connecting piece, the top of thimble subassembly all with the bottom fixed connection of uide bushing, the stop collar cover is established on the thimble subassembly, the top of stop collar and the bottom fixed connection of uide bushing, the stop collar is located between uide bushing and the locating plate.

The thimble assembly comprises a thimble, the top of the thimble is fixedly connected with the reinforcing sleeve, a positioning hole is formed in the positioning plate, the diameter of the positioning hole is larger than that of the thimble, the thimble penetrates through the bottom of the positioning hole, the diameter of the positioning hole is smaller than that of the limiting sleeve, the distance between the bottom of the limiting sleeve and the top of the positioning plate is defined to be L1, the stroke of the hydraulic oil cylinder is L2, and L1 is less than L2.

Preferably, the casting mold device comprises a mold frame, and the positioning plate is fixedly connected with the mold frame.

Preferably, the thimble assembly further comprises a sleeve, the sleeve is sleeved on the thimble, and the sleeve is located at the bottom of the positioning plate.

Preferably, the number of the ejector pin assemblies and the number of the limiting sleeves are six, and the number of the positioning holes is six.

Preferably, four corners of the positioning plate are provided with first bolt holes, the die carrier is provided with second bolt holes, the positioning plate is connected with the die carrier through bolts, and the bolts are in threaded connection with the first bolt holes and the second bolt holes.

When the die casting machine is used, the positioning plate is fixedly connected with the die frame, the hydraulic oil cylinder is installed on the die casting device, the die casting device in the embodiment is a die casting machine, the output end of the hydraulic oil cylinder drives the connecting piece and the reinforcing sleeve to move, the reinforcing sleeve drives the ejector pin assembly and the limiting sleeve to move, the ejector pin can freely slide in the positioning hole until a product is ejected out of the die, the movement distance of the ejector pin assembly can be limited by the limiting sleeve due to the fact that the diameter of the limiting sleeve is larger than that of the positioning hole, the positioning plate is fixed in position, and the distance between the bottom of the limiting sleeve and the top of the positioning plate is smaller than the stroke of the hydraulic oil cylinder, so that the output shaft of the hydraulic oil cylinder can be prevented from reaching the tail end, the hydraulic oil cylinder is easily blocked, the resetting, prolongs the service life of the hydraulic oil cylinder

The utility model has the advantages that: the utility model discloses a cooperation of boss, thimble assembly, stop collar, locating plate and locating hole is used, can make a plurality of thimble assemblies target in place simultaneously, withdraws from simultaneously, avoids appearing the condition that the card went on, moreover because the bottom of stop collar and the distance at locating plate top are for being less than hydraulic cylinder's stroke, and then can prevent that hydraulic cylinder's card is dead for hydraulic cylinder resets easily, the utility model has the advantages of reasonable design simply, convenient to use is swift, has very strong practicality.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic front view of the present invention.

The text labels in the figures are represented as: 1. a connecting member; 2. a reinforcing sleeve; 3. a thimble assembly; 301. a thimble; 302. a sleeve; 4. a limiting sleeve; 5. positioning a plate; 6. and (7) positioning the holes.

Detailed Description

In order to make the technical solution of the present invention better understood, the present invention is described in detail below with reference to the accompanying drawings, and the description of the present invention is only exemplary and explanatory, and should not be construed as limiting the scope of the present invention.

Die casting machines are a series of industrial casting machines which inject molten metal under pressure into a mold to be cooled and formed, and after the mold is opened, a solid metal casting is obtained, and the casting machines are initially used for die casting type. With the progress of scientific technology and industrial production, especially with the development of industries such as automobiles, motorcycles, household appliances and the like, the die casting technology has been developed extremely rapidly from various aspects. The supplementary demolding of general user's extrusion round pin after the casting mould is accomplished, but current extrusion round pin adopts single thimble extrusion mode, and this makes the atress uneven, and difficult drawing of patterns if adopt many thimbles mode, its spacing mode is that hydraulic cylinder output shaft reaches terminal mode, will cause hydraulic cylinder's card under this kind of condition to die, is difficult for reseing.

This embodiment is assisted the demolding through the mode of many thimbles, is provided with stop collar 4, locating plate 5 and locating hole 6 cooperation moreover and uses, avoids hydraulic cylinder the dead condition of card to appear, extension hydraulic cylinder's life.

The concrete structure of this embodiment is as follows, as shown in fig. 1-2, a supplementary many thimbles extrusion pin for demolding of casting mold device, the utility model discloses a concrete structure does: including connecting piece 1, reinforcing sleeve 2, thimble assembly 3, stop collar 4 and locating plate 5, supplementary demolding of extrusion pin cooperation hydraulic cylinder in this embodiment, connecting piece 1 and hydraulic cylinder's output shaft fixed connection, the lower extreme fixedly connected with reinforcing sleeve 2 of connecting piece 1, the top of thimble assembly 3 all with the bottom fixed connection of reinforcing

sleeve

2, 4 covers of stop collar are established on thimble assembly 3, the top of stop collar 4 and the bottom fixed connection of reinforcing sleeve 2, stop collar 4 is located between reinforcing sleeve 2 and locating plate 5.

Further, the thimble assembly 3 includes a thimble 301, the top of the thimble 301 is fixedly connected with the reinforcing sleeve 2, a positioning hole 6 is formed in the positioning plate 5, the diameter of the positioning hole 6 is larger than that of the thimble 301, the thimble 301 penetrates through to the bottom of the positioning hole 6, the diameter of the positioning hole 6 is smaller than that of the stop collar 4, the distance between the bottom of the stop collar 4 and the top of the positioning plate 5 is defined as L1, the stroke of the hydraulic cylinder is L2, and L1 is smaller than L2.

The die casting device comprises a die set, when the die casting device is used, a positioning plate 5 is fixedly connected with the die set, a hydraulic oil cylinder is installed on the die casting device, the die casting device in the embodiment is a die casting machine, an output end of the hydraulic oil cylinder drives a connecting piece 1 and a reinforcing sleeve 2 to move, the reinforcing sleeve 2 drives a thimble assembly 3 and a limiting sleeve 4 to move, the diameter of a thimble 301 is smaller than that of the positioning hole 6, the thimble 301 can freely slide in the positioning hole 6 until a product is ejected out of a die, the movement distance of the thimble assembly 3 can be limited by the limiting sleeve 4 as the diameter of the limiting sleeve 4 is larger than that of the positioning hole 6, the position of the positioning plate 5 is fixed, and the distance between the bottom of the limiting sleeve 4 and the top of the positioning plate 5 is smaller than the stroke of the hydraulic oil cylinder, so that, the hydraulic oil cylinder is not easy to reset, the normal use of the hydraulic oil cylinder is facilitated, and the service life of the hydraulic oil cylinder is prolonged.

In this embodiment, preferably, the thimble assembly 3 further includes a sleeve 302, the sleeve 302 is sleeved on the thimble 301, and the sleeve 302 is located at the bottom of the positioning plate 5.

In this embodiment, preferably, the number of the ejector pin assemblies 3 and the number of the limiting sleeves 4 are six, the number of the positioning holes 6 is six, and the six ejector pin assemblies 3 enable the demolding efficiency to be higher, are uniformly stressed, and are easy to demold.

In this embodiment, preferably, the four corners of the positioning plate 5 are provided with a first bolt hole, the die carrier is provided with a second bolt hole, the positioning plate 5 is connected with the die carrier through a bolt, the bolt is in threaded connection with the first bolt hole and the second bolt hole, and a user can detach the positioning plate 5 from the die carrier.

To sum up, the utility model discloses a reinforcing sleeve 2, thimble assembly 3, stop collar 4, locating plate 5 and locating hole 6's cooperation is used, can make a plurality of thimble assemblies 3 target in place simultaneously, withdraws from simultaneously, avoids appearing the condition that the card pauses, moreover because the bottom of stop collar 4 and the distance at 5 tops of locating plate are for being less than hydraulic cylinder's stroke, and then can prevent that hydraulic cylinder's card is dead for hydraulic cylinder resets easily, the utility model has the advantages of reasonable design simply, convenient to use is swift, has very strong practicality.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The principles and embodiments of the present invention have been explained herein using specific examples, which are presented only to assist in understanding the methods and their core concepts. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes can be made without departing from the principle of the present invention, and the above technical features can be combined in a proper manner; the application of these modifications, variations or combinations, or the application of the concepts and solutions of the present invention in other contexts without modification, is not intended to be considered as a limitation of the present invention.

Claims

1. A multi-ejector-pin extrusion pin for auxiliary stripping of a casting mold device is matched with a hydraulic oil cylinder to assist in stripping and is characterized by comprising a connecting piece (1), a reinforcing sleeve (2), at least one ejector pin component (3), at least one limiting sleeve (4) and a positioning plate (5), wherein the connecting piece (1) is fixedly connected with an output shaft of the hydraulic oil cylinder, the lower end of the connecting piece (1) is fixedly connected with the reinforcing sleeve (2), the top of the ejector pin component (3) is fixedly connected with the bottom of the reinforcing sleeve (2), the limiting sleeve (4) is sleeved on the ejector pin component (3), the top of the limiting sleeve (4) is fixedly connected with the bottom of the reinforcing sleeve (2), and the limiting sleeve (4) is positioned between the reinforcing sleeve (2) and the positioning plate (5);

the thimble assembly (3) comprises a thimble (301), the top of the thimble (301) is fixedly connected with the reinforcing sleeve (2), a positioning hole (6) is formed in the positioning plate (5), the diameter of the positioning hole (6) is larger than that of the thimble (301), the thimble (301) penetrates through the bottom of the positioning hole (6), the diameter of the positioning hole (6) is smaller than that of the limiting sleeve (4), the distance between the bottom of the limiting sleeve (4) and the top of the positioning plate (5) is defined as L1, the stroke of the hydraulic oil cylinder is L2, and L1 is less than L2.

2. A multi-pin extrusion pin for auxiliary stripping of a casting mold device according to claim 1, wherein the casting mold device comprises a mold frame, and the positioning plate (5) is fixedly connected with the mold frame.

3. The multi-ejector pin extrusion pin for the auxiliary demolding of the casting mold device according to claim 1, wherein the ejector pin assembly (3) further comprises a sleeve (302), the sleeve (302) is sleeved on the ejector pin (301), and the sleeve (302) is located at the bottom of the positioning plate (5).

4. The multi-pin extrusion pin for auxiliary stripping of the casting mold device according to claim 1, wherein the number of the pin assemblies (3) and the stop collars (4) is six, and the number of the positioning holes (6) is six.

5. The multi-ejector pin extrusion pin for auxiliary stripping of the casting mold device according to claim 2, wherein a first bolt hole is formed at four corners of the positioning plate (5), a second bolt hole is formed in the mold frame, the positioning plate (5) is connected with the mold frame through a bolt, and the bolt is in threaded connection with the first bolt hole and the second bolt hole.