CN217196707U

CN217196707U - Drilling-free die for core plate balance column

Info

Publication number: CN217196707U
Application number: CN202220901105.4U
Authority: CN
Inventors: 黄国庆; 王卫全; 吕昊泉
Original assignee: Jingjin Equipment Co Ltd
Current assignee: Jingjin Equipment Co Ltd
Priority date: 2022-04-19
Filing date: 2022-04-19
Publication date: 2022-08-16
Anticipated expiration: 2032-04-19

Abstract

The utility model discloses a drilling mould is exempted from to balanced post of core, including last mould, lower mould, balanced post, core, balanced post by: hexagonal head bolt, a spring, the step shaft is constituteed, go up the mould and open screw thread notch cuttype through-hole, put into the through-hole in the upper end cover spring of step shaft, half blind hole is opened to hexagonal head bolt screw rod, the step shaft upper end stretches into half blind hole of screw rod, both cup joint but unfixed, threaded connection is fixed in the bolt twists the notch cuttype through-hole, the step shaft lower extreme is enough long to stretch into in the blind hole that the lower mould corresponds, go up lower mould closed die and pour into raw and other materials, injection moulding's balanced hole inner wall of core is smooth, moreover, the steam generator is stable in structure, and is small in size, the position is accurate, save the core process of punching, promote product quality, and the production efficiency is improved.

Description

Drilling-free die for core plate balance column

Technical Field

The utility model belongs to the technical field of membrane filter press (patent classification number B01D 25/12) and injection moulding, a core plate's injection moulding process in the membrane filter plate on the pressure filter is related to.

Background

The filter press is a universal solid-liquid separation device and is widely applied to the industries of chemical industry, metallurgy, dye, food and the like. The filter plates are parts which are necessary to be used for filtering by a filter press and are arranged on a cross beam of the filter press, and a cavity is formed by a concave part between the two filter plates; the materials enter a cavity of the filter plate through the feeding hole, particles in the materials are intercepted by the filter cloth to form a filter cake, and the filtrate is discharged through a liquid outlet corner hole of the filter plate; the filter plate is divided into a diaphragm plate (diaphragm plate) and a van-type plate, the diaphragm plate is formed by bonding a core plate and a diaphragm, and the diaphragm plate has the function of introducing a medium to extrude a filter cake to discharge water in the filter cake, so that holes are formed in the side surface and the surface of the core plate generally, the medium is convenient to enter and flow out, and after the core plate is subjected to injection molding and cooling of a mold, a plurality of balance holes are drilled in the surface of the core plate by workers to ensure that the cavities of the diaphragm plate are communicated with each other, and manual drilling is poor in forming quality, consumes labor hours, is high in labor intensity, cannot ensure the accuracy of the size and the position of the holes, and is not beneficial to the improvement of enterprise productivity.

SUMMERY OF THE UTILITY MODEL

The utility model aims at improving current core drilling technology, solving corresponding technical problem, providing a drilling mould is exempted from to balanced post of core.

The utility model provides a technical scheme that prior art problem adopted is: a core plate balance column installed on an upper die mainly comprises: hexagonal head bolt, a spring, the step shaft is constituteed, go up the mould and open screw thread notch cuttype through-hole, put into the through-hole in the upper end cover spring of step shaft, half blind hole is opened to hexagonal head bolt screw rod, the step shaft upper end stretches into half blind hole of screw rod, both cup joint but unfixed, threaded connection is fixed in the bolt twists the notch cuttype through-hole, the step shaft lower extreme is enough long to stretch into in the blind hole that the lower mould corresponds, go up the lower mould and close the mould, injection moulding's balanced hole inner wall of core is smooth, moreover, the steam generator is stable in structure, the size, the position is accurate, save the core process of punching, the product quality is improved, and the production efficiency is improved.

Furthermore, the balance column consists of a hexagon head bolt, a spring and a stepped shaft, the stepped shaft is divided into three parts, the upper end of the stepped shaft is a thin shaft, the middle of the stepped shaft is a cylinder, the spring is placed, the lower end of the stepped shaft is a thick shaft, and the diameter of the thick shaft is determined according to the size of a balance hole of the core plate; the diameter of the thin shaft is determined according to the model of the filter plate and the weight of the upper die and the lower die, and the diameter of the thin shaft is further determined on the basis; the hexagonal head bolt screw is provided with a half blind hole, the thin shaft extends into the half blind hole to reserve a certain space, the height of the reserved space is higher than the expansion modulus, the thin shaft is prevented from being in rigid contact with the half blind hole when the spring elastically contracts and from being hard to touch, parts are damaged, and the thin shaft is in clearance fit with the half blind hole; the spring is a buffer piece and is placed on the cylinder of the stepped shaft, and when the die is closed, the spring is pre-compressed by the hexagon bolt and is in a pre-tightening state; raw materials enter a mold from a casting port, when a cavity of the mold is continuously filled with the raw materials, the materials are melted and heated, heat continuously impacts the mold, cavities of an upper mold and a lower mold are filled with the materials and the heat, the mold is expanded to enable the mold to move upwards and drive a balance column to move upwards, but a lower-end coarse shaft cannot be completely separated from a semi-blind hole of the lower mold, and part of the lower-end coarse shaft flows into the hole, so that the balance hole of the injection-molded core plate is completely communicated; at the moment, the moving distance of the upper die is the modulus of expansion, and the length of the half blind hole of the lower die is also larger than the modulus of expansion, so that the lower end coarse shaft of the stepped shaft is not separated from the lower die and is inserted into the lower die all the time, the core plate is communicated to form a balance hole, the core plate injection molding is realized, meanwhile, the punching process is omitted, the labor intensity of workers is reduced, and more economic benefits are created for enterprises.

Furthermore, the balance columns are arranged at the center positions of the die strip chord and the reserved space of the support table, are equal in length and are symmetrically distributed; the design has rationality at the position, on one hand, when feeding, the material is firstly filled around the material hole and then gradually extends to the periphery of the filter chamber, in the process, the material extrudes the membrane to enable the medium in the cavity of the core plate and the membrane to outwards extend and discharge, the material is diffused to the periphery by taking the material hole as the center and gradually precipitates to form a filter cake, the medium in the cavity is also extruded to the balance hole from the center to form an annular passage and finally discharged from the medium hole to reduce the feeding resistance, and the feeding path is consistent with the medium discharging path and supplements each other; on the other hand, the balance hole is arranged at the center of the strip string on the surface of the core plate and the remaining space of the supporting platform and is circularly wound into a circle, the cavities on all sides can be communicated, the medium circulation speed in the cavities is increased, and the membrane can be conveniently and rapidly expanded.

The utility model provides a pair of drilling equipment is exempted from to balanced post of core, simple structure, convenient operation, dependable performance not only save the core process of punching, promote product quality and production efficiency moreover, create bigger economic benefits for the enterprise.

Drawings

Fig. 1 is the utility model relates to a balanced post structure sketch map in core balanced post exempts from drilling mould.

Fig. 2 is the utility model relates to a core balance post exempts from to go up mould stereogram.

Fig. 3 is the schematic diagram of the injection molding core plate in the core plate balance column drilling-free mold of the utility model.

Fig. 4 is the utility model relates to a core balance post exempts from drilling mould die sinking state sketch map.

Reference numerals: 1-upper die, 2-balance column, 3-lower die, 4-guide column, 5-core plate, 6-casting gate, 7-air permeable block, 8-medium hole, 10-string, 12-material hole, 13-support table, 14-balance hole, 21-hexagon head bolt, 22-spring and 23-stepped shaft.

Detailed Description

The technical solutions in the embodiments of the present invention are described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some preferred embodiments of the present invention, but not all embodiments. Based on the embodiment of the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

Examples

A core plate balance column drilling-free mold mainly comprises an upper mold 1, a balance column 2, a lower mold 3, a guide column 4 and a core plate 5, wherein the balance column 2 is a drilling-free assembly part, a spring 22 is sleeved on a stepped shaft 23, the upper end of the stepped shaft is sleeved with a hexagon head bolt 21, and the two are in clearance fit; the lower die 3 is a fixed die, the upper die 1 moves along the guide post 4, and when the die is closed, the spring is pre-compressed by the hexagon head bolt 21, and the spring 22 is in a pre-tightening state; raw materials enter the mould from the casting opening 6, when the cavity of the mould is continuously filled with the raw materials, the raw materials are melted and heated, hot air flows continuously flow upwards, the upper mould is embedded with a ventilation block 7, and the hot air flows are discharged from the ventilation block; the cavity of the upper die and the cavity of the lower die are filled with materials and heat, so that the upper die 1 moves upwards and drives the balance column 2 to move upwards, but the lower-end coarse shaft cannot be completely separated from the semi-blind hole of the lower die 3, and part of the lower-end coarse shaft is left in the hole to ensure that the balance hole of the injection-molded core plate 5 is completely communicated; when the die is opened, the movable die moves, the spring bounces and is not compressed any more, so that the spring has a process of extending downwards and jumping upwards, the balance post is in loose contact with the core plate in the bouncing process, and automatically separates from the core plate along with the movement of the upper die, and automatic demoulding is realized.

The diaphragm is bonded with the peripheral plane of the core plate and the central material hole 12 to form a diaphragm plate (diaphragm plate), the diaphragm plate is mutually communicated into a closed cavity through a balance hole 14 and a shunt hole 9, high-pressure fluid is introduced from a medium hole 8, the fluid is filled in the cavity through the shunt hole 9, the balance hole 14 keeps the two sides of the cavity communicated, the pressure is equal, and the imbalance of the diaphragm plate is avoided, so that the thickness of a filter cake is not uniform when the diaphragm plate drum; the strip strings 10 support the diaphragm, so that the periphery of the diaphragm plate is correspondingly thickened, the compression resistance of the filter plate is enhanced, and the fracture probability of the filter plate is effectively reduced; the core plate is not adhered to the membrane support table 13, so that the function of extruding the filter cake by the expansion of the membrane plate can be realized, and the water content of the filter cake is reduced by the squeezing of the filter press.

Claims

1. The utility model provides a drilling mould is exempted from to balanced post of core, includes mould, lower mould, core, balanced post, its characterized in that: the balance column is embedded in the upper die and consists of a hexagon head bolt, a spring and a stepped shaft, the stepped shaft is divided into three parts, the upper end of the stepped shaft is a thin shaft, the middle of the stepped shaft is a cylinder, the lower end of the stepped shaft is a thick shaft, and the diameter of the thick shaft is determined according to the size of a balance hole of the core plate; the diameter of the thin shaft is determined according to the model of the filter plate and the rigidity and strength of the upper die and the lower die, and the diameter of the thin shaft is further determined on the basis; a half blind hole is formed in the screw rod of the hexagon head bolt, the thin shaft extends into the half blind hole, and the height of a reserved space in the hole is higher than the expansion modulus; the spring is a buffer piece and is placed on the cylinder of the stepped shaft; when the die is closed, the lower end coarse shaft of the stepped shaft extends into the corresponding half blind hole of the lower die, the length of the half blind hole of the lower die is also larger than the expansion modulus, and the lower end coarse shaft of the stepped shaft is ensured not to be separated from the lower die when the die is expanded; from mold closing to mold expanding, the spring changes from a pre-compression state to a fully compression state.

2. The core plate balance post drilling-free mold of claim 1, wherein: the balance columns are arranged at the center positions of the die strip strings and the reserved space of the supporting table, are equal in length and are symmetrically distributed.