CN1109404A - Automatic die for powder pressed porous brick - Google Patents

Abstract

The invention adds a core rod device matched with the lower mould to existing mould of a powder pressing brick-making machine, the powder material can fall into the space around the core rods due to vibration of the core rod device to achieve the aim of high pressure high speed automatic production of powder-pressed porous brick, such as porous sand-dust brick, roasted porous brick, blind hole brick, etc.

Description

Automatic die for powder pressed porous brick

The present invention relates to a kind of mould of powder platen press brickmaking mechanical, particularly a kind of powder platen press is produced the automatic die of porous brick.

Existing hollow brick or porous brick generally are by vacuum extruder production, and it is furnished with special-purpose mould.This class brickmaking mechanical has that output is big, the advantage of technology maturation.But no matter this class brickmaking mechanical is the multistage hard pressing method of traditional soft extruding or new development, all is subjected to the restriction of its intrinsic principle, and brickmaking pressure is low, adobe water content height, yielding, all need one before the roasting and ted or drying course, simultaneously, the raw material sand content is required height, raw material sources are few.Existing another kind of brickmaking mechanical is a powder platen press brickmaking machine, and it also is that a kind of output is big, the brickmaking mechanical of technology maturation.It can produce what exempt from roasting is the Dinas brickes of primary raw material with sand, common brick that also can the production roasting.Its most outstanding characteristic is that brickmaking pressure is big, the brick body is solid, carefully and neatly done, water content is few.When producing fire refractory brick, can use inferior raw material, adobe can be directly into the kiln roasting.This class machinery just has a large amount of produce and markets from the beginning of this century.As the Dinas brickes brickmaking machine of China, the secondary of West Germany pressurization brickmaking machine etc.But this commercially available class powder pressed brick machine can not be produced hollow brick or porous brick.

The purpose of this invention is to provide a kind of powder platen press and produce the automatic die of porous brick, it can be transformed existing powder and press the automatic brick-equipment tool, the high-speed production perforated cellular brick, and can a tractor serves several purposes, porous brick that can the production roasting also can be produced the porous Dinas brickes of exempting from roasting, can also produce a kind of build by laying bricks or stones performance good educate the pass porous brick.

The present invention is achieved in that the lower die head of pressing automatic brick-equipment at existing powder, processes some cores hole.Increase by one group of core bar device of being made up of some core bars etc., core bar passes the core hole of lower die head, can move up and down in the core hole of lower die head.During brickmaking, core bar exceeds lower die head, and produces vibration when blanking, impels the powder particle to fall into slit between each core bar in moment, fills up porous mold.Thereby overcome a kind of " arch bridge " effect that the powder pressed porous brick mould is used that hinders.This " arch bridge " effect, it is only particularly serious under the condition at several seconds zero point to press automatic brick-equipment high-speed cruising, blanking time at powder, causes and can't pressurize to making powder be shelved on intensive core bar top, the consequence that complete machine lost efficacy.Continue to finish conventional strokes such as pressurization, holder base, ejection when brickmaking machine after, can make brick body with loose structure.When raw material adopted sintered clay, the product of making was a fire refractory brick.It is main that raw material adopt sand, joins in right amount when ebonite ramming material (as cement, lime etc.), and the product of making is for exempting from fire refractory brick.When the height that the control core bar exceeds lower die head was slightly smaller than adobe thickness, the product of making was a back covered porous brick.Thereby realized whole purpose of the present invention.

Automatic die for powder pressed porous brick of the present invention can fall into the very little core bar slit of spacing, the porous brick of High-Speed Automatic compacting all size with the powder particle in moment.Product with its production is solid, carefully and neatly done, moisture content is low, can be directly into the kiln roasting.When particularly producing the fire refractory brick of carbonaceous materials added to raw materials, good product quality, production cost are low.These combination properties are that existing extrusion hollow brick making machine is beyond one's reach.These premium properties also make the investment of a complete set of production line extremely low.Therefore, transform existing powder with automatic die for powder pressed porous brick of the present invention and press solid brick machinery, its economic benefit is very remarkable.

Below with reference to accompanying drawing automatic die for powder pressed porous brick of the present invention is further elaborated.

Accompanying drawing is a kind of automatic die for powder pressed porous brick generalized section.

With reference to accompanying drawing.Last die head (1), framed (2), lower die head (3), feeding funnel (4) and storage bin hopper (5).Press the main building block of automatic brick machine for existing powder.They drive along work top A-A by the automechanism of working in coordination and finish automatic brickmaking circulation.Now pressing automatic brick-equipment with a kind of framed (2) for fixed powder is their the brickmaking circulation of example brief description.One, prepare (holder base) stroke: the receiving opening of feeding funnel (4) is positioned at the feed opening position of storage bin hopper (5), and last die head (1) rises and is positioned at initial point, and lower die head (3) rises to peak (A-A face).Two, blanking (ejection) stroke: feeding funnel (4) along A-A towards preceding moving to framed (2), brickmaking last time circulation time repressed brick base pushed away framed (2) after, lower die head (3) descends immediately, in the cavity volume that powder falls into framed (2).Three, pressure stroke: feeding funnel (4) is return the storage bin hopper position, and last die head (1) descends adobe is pressurizeed.Four, the circulation of brickmaking for the second time beginning.The present invention promptly processes some vertical core holes at the die head (3) of above-mentioned automechanism, and increases by a core assembly lever apparatus.The core bar device is made up of core bar (6), core bar seat (7), roller (9) etc.Match with the core hole of lower die head in the quantity of core bar (6) and cross section, the core hole of lower die head (3) is passed on the top of core bar (6), can move up and down in the core hole.Core bar (6) lower end is connected the top of core bar seat (7).Roller (9) is fixed on core bar seat (7) below.Core bar seat (7) both sides have vertical track construction.Two guide rail plates (8) are fixed with body, can control core bar seat (7) and move up and down.Last anchor point (13) control core bar (6) top is no more than the A-A face.The minimum altitude of following anchor point (12) control core bar (6) when pressing unfired brick can be controlled production through hole brick or educate the hole brick by adjusting down anchor point (12).The rotating speed of rotating shaft (10) promptly matches with the motion of last die head (1), lower die head (3) feeding funnel (4) synchronously with aforesaid automatics.Semi-circle gear (11) is fixed in the rotating shaft (10).The profile of tooth of semi-circle gear preferably makes curved tooth, when the blanking stroke, the roller (9) of curved tooth contact core bar device is under the effect of two guide rail plates (8), cause the up-down vibration of core bar device, when pressurizeing and holding in the palm bad stroke, curved tooth breaks away from roller (9), and the core bar device stops vibration.Below will the working cycles and the principle of automatic die for powder pressed porous brick of the present invention be described in further detail.One, prepare (holder base) stroke: the receiving opening of feeding funnel (4) is positioned at the position of the feed opening of storage bin hopper (5).Last die head (1) rises to initial point, and lower die head (3) rises to the A-A face, and under the frictional force effect, the core bar device is done shifting movement.Two, blanking (ejection) stroke: when device of the present invention descends in lower die head (3), the core bar device is followed and is dropped to anchor point (12) position, adjust anchor point (12) down, the porous brick that the height that exceeds lower die head (3) when the control core bar is made when thick less than brick is educates the hole brick.In like manner, also can adjust production through hole brick.This stroke begins, at first feeding funnel (4) along A-A towards preceding moving to framed (2), brickmaking last time circulation time repressed brick base pushed away framed (2) after, lower die head (3) descends immediately, the part powder falls in the cavity volume of framed (2), and the part powder is shelved on the core bar top.Half garden gear (11) contact roller (9), the vibration of core bar device.Originally execute routine vibration frequency 1000-1500 time/minute, amplitude 1-2 millimeter.Because the vibration of core bar device is to rely on contact to produce, frictional force and whereabouts hysteresis might make the roller (9) and the curved tooth of half garden gear break away from, and cause the vibration disappearance.As long as this is controlled at lower die head (3) when descending, the decrease speed of core bar device is less than the decrease speed of lower die head (3), and when die head (3) was static, the core bar dress rose gradually, can guarantee good contact of roller (9) and half garden gear (11).The vibration of core bar makes the also forced vibration of powder that is shelved on core bar (6) top, falls into the slit between the core bar (6).Thereby destroyed " arch bridge " effect extremely harmful, the purpose of compacting porous brick is achieved the powder pressed brick.Three, pressure stroke: feeding funnel (4) is return preparation (holder base) travel position, and half garden gear (11) breaks away from roller (9), and the core bar device stops vibration.Last die head (1) descends, and to the pressurization of the powder in framed (2) cavity volume.Four, prepare (holder base) stroke: with reference to aforementioned, the circulation of brickmaking for the second time beginning.The core bar device is subjected to the location of anchor point (13), and core bar (6) top is no more than the A-A face, makes the adobe of holding out deviate from core bar, allows feeding funnel (4) push away framed (2).According to the brickmaking stroke as can be known, the vibration of blanking to the pressurization is effective vibration, and being forced into the vibration of holder during base is invalid or nuisance vibration, and vibration can be produced by various devices, but preferably can satisfy this requirement during design, and be more simple and reliable again.

Claims (2)

1, a kind of by last die head (1), framed (2), lower die head (3) and one group of automatic die for powder pressed porous brick that the core bar device that cooperates with lower die head (3) is formed, it is characterized in that: core bar (6) produces vibration in the blanking stroke of brickmaking circulation.

2, automatic die for powder pressed porous brick according to claim 1 is characterized in that: the structure by half garden gear (11) drives core bar (6) generation vibration.