CN1251848C - Automatic press for blind hole type porous building block - Google Patents

Abstract

The automatic press for blind-hole porous building blocks adopts a structure of underneath vibration core rod device and lower die head pressurization, and adopts the mechanisms of composite vibration forming and plastic extrusion forming, and the whole machine has simple structure, reliable operation and low manufacturing cost. It can use sand, flyash, slag, loess, cement and lime as raw materials to produce baking-free porous building blocks, and can also use inferior clay to produce sintered porous building blocks. It improves the world semidry method block press from 'hollow' series to 'porous' series, and has the obvious advantages: 1. high-pressure forming, and the green bodies can be directly stacked without a backing plate; 2. the porosity is more than 50%.

Description

Automatic pressing machine for blind multi-hole building-blocks

(1) technical field

The present invention relates to a kind of building material machinery, particularly a kind of semidry method high pressure is produced the machinery of porous building-brick.

(2) background technology

China's national Specification, porous brick or porous building-brick, its core diameter≤Φ 22mm, hollow rate 30%.Porous brick or porous building-brick are from heat-proof quality, structural strength with build by laying bricks or stones and all be better than existing hollow brick or building-block on the performance.Now, a kind of hard extruding porous brick machine of France can be produced hollow rate and be 50% the more hole building block of sintering.It adopts clay is raw material, and block strength is high, is a kind of high performance materials for wall.But the production technology of this sintered porous building block is very complicated, and production equipment is very expensive, and is also very high to the requirement of raw clay, and it will dig and ruin the farmland simultaneously, does not meet China's state basic policy.Also having another kind of employing rubble, sand, cement now is the cement hollow building blocks make-up machine of raw material.It is a kind of machinery based on vibration moulding, occurs in the U.S. in 1904, and its forming technique has passed through the process of " workbench vibration ", " moulding box vibration ", " pressurization and vibration ", " powerful body vibration ".Now external this class production line technology is very ripe, and mostly is computer control, the building-block that its energy manufacture order round to three is arranged.China begins imitated this type the sixties, has now become the leading type that China produces cement hollow building blocks, plays good exemplary role to saving the farmland.But no matter be home made production line or introduce production line, all also have the problem of " heat, split, leak " to wait until solution, also all can not produce the porous building-brick of high hollow rate.The machinery that also has another kind of semidry method brickmaking and building block now, this class machinery is the most representative to be that what to occur in Germany in 1873 is the Dinas brickes machine of raw material with sand and lime.First fluid pressure type sand-lime machine appearred again in Germany in 1971, and by eliminating third generation mechanical type Dinas brickes machine.Now external building block mo(u)ldenpress is fluid pressure type, and pressure is generally 300-1500T.Can produce the building-block of hollow rate the highest 25%.China begins imitated first generation mechanical type Dinas brickes machine in the sixties, is the representative type of the high brick machine of China's semidry method, does not have great remodeling so far.China units concerned began to develop 500 tons of hydraulic pressure Dinas brickes machines in 1974, and nineteen eighty-two is tested and appraised.But in use give up halfway, be still blank so far.It is very ripe that China now makes 15000 tons hydraulic press technology, but because China's brick and building block price are low especially, and high pressure building block press action request height, the lead time is long, and expense is big.Research institute is reluctant to set foot in, and should be that important former 1988 China of this type blank have carried out since the wall reform, and some R﹠D institutions provide more report data to semidry method porous brick machine.A kind of HNY type full-automatic bidirectional hydraulic forming machine that is called, can adopt cement, sand is the load-bearing back covered porous brick that raw material is produced hollow rate 40%, the demoulding and maintenance are without backing plate.A kind of YZM60-4 Brick with blind hole make-up machine that is called can adopt unselected clay, semi-dry pressing blind hole type sintered perforated brick, and hollow rate reaches 30%.Invest market in batches but there is no, its practicality is still waiting to confirm.Patent Office of the People's Republic of China disclosed the patent application of " a kind of automatic die for powder pressed porous brick " (number of patent application: 94103689.8) it was that lower die head at the semidry method high pressure brickmaking machine of prior mechanical or fluid pressure type processes some cores hole nineteen ninety-five.Some core bars pass these core holes, and the core bar upper end is stretched out lower die head and placed framed; The core bar lower end is connected with vibrator.During filler, vibrator drives the core bar vibration, thereby destroys " arch bridge " effect that material occurs on close poly-core bar top.It is from know-why, a long-term unsolved cloth and a blanking difficult problem when having solved " powder platen press " on the technical measures and producing the porous brick of high hollow rate.But when this patent application was used in the production porous building-brick, great change had taken place in technology essential factor.The first, the unsettled length of the core bar of diameter 22mm reaches 400mm, and draw ratio reaches 18, can not bear hundreds of tons stamping press, and make the very fast inefficacy of this mould, so it must have the technical scheme that solves this significant problem.The second, traditional semidry method high pressure base theory is thought: the pressurization width should be beneficial to reduce the pressure decline phenomenon greater than pressurization thickness.And when producing the porous building-brick of hollow rate 50%, the core pitch of holes only has 4mm.The pressurization plane of building block can be considered by close poly-core bar and is divided into the only width of 4mm, and pressurization thickness is 190mm, and thick and wide ratio reaches 47, and serious pressure decline also will make this mould lose efficacy.So it must obtain the support of other formation theories.The 3rd, patent application essence is the compound of the newly-increased core bar mould of an original mould of cover and a cover, under the condition of hundreds of tons of pressure and a large amount of elongated core bars built-in and cross over two the cover moving components condition under, the pressure structure stress condition is abominable, mould and die accuracy requires high, so it also must obtain the support of structural design and manufacturing process, must solve many substantial problems.So far, the porous building-brick mo(u)ldenpress that does not still adopt semidry method to produce hollow rate 30% is both at home and abroad introduced to the market.

(3) summary of the invention

The objective of the invention is: a kind of automatic pressing machine for blind multi-hole building-blocks is provided.It can adopt sand, flyash, stove quarrel, loess, cement, lime etc. is raw material, produces the unburned knot porous building-brick of blind hole type of high-intensity hollow rate 50%.It can also be with clay, and clay particularly inferior is a raw material, production high strength, the sintered porous building block of hollow rate 50%.This automatic pressing machine for blind multi-hole building-blocks, the porous building-brick of production, blank strength is big, does not need backing plate to assist to mould adobe blocks maintenance, can the direct demold stacking.This automatic pressing machine for blind multi-hole building-blocks is reliable, and is sturdy and durable, and output is big, and low cost of manufacture can be implemented computer control.

The present invention realizes like this.1, adopts the basic structure that has now with the semidry method building block mo(u)ldenpress of lower die head pressurization.It is by entablature, and sill and 4 columns etc. are formed organism frame.Frame mid portion is installed framed parts, and the feeding funnel parts are installed between entablature and the framed parts; Entablature one side is installed the storage bin hopper parts, and pressure-producing part is installed in the framework bottom, and lower die head is installed above the pressure-producing part, and lower die head is driven by pressure-producing part.2, (application number is the patent application of employing Patent Office of the People's Republic of China disclosed " a kind of automatic die for powder pressed porous brick ": 94103689.8) described underlying vibration core bar structure.This underlying core bar structure is that lower die head is processed some through holes, and some core bars pass these through holes, core bar upper end stretch out lower die head and deposit framed among, the core bar lower end is connected with core bar delocalization plate, core bar seat and vibrator.3, cancel the technical scheme of the single fulcrum pressurization in frame below, employing is in the pressurization scheme of two fulcrums at the two ends, bottom of organism frame.Vacate lower die head following space mounting core bar and core bar seat.Set up a die shoe between moved cross beam and lower die head, lower die head is fixed on the die shoe, and the die shoe both sides external has the force bearing ring of symmetry, and the force bearing ring fit of moved cross beam and die shoe or engage can rotate around force bearing ring.Die shoe inside is hollow structure, can hold core bar, core bar location-plate, core bar seat, vibrator and guide post.4, the guidance system of redesign complete machine.Two fixing guide posts of upper and lower end pass the die shoe inner space.Die shoe is by the outside guiding of slide block by two guide posts, and the core bar seat is by the inboard guiding of slide block by two guide posts.The feeding funnel track of framed top is the independent rails system.The guiding of about 100 core bar is guaranteed by the drill jig technology of lower die head, core bar location-plate.5, set up the synchronization structure of the pressurization fulcrum at moved cross beam two ends, it is respectively: mechanical type cooperates by floating realizes that fluid pressure type is realized by universal cooperation.6, matching control apparatus.The control function of fluid pressure type type is identical with existing similar type, and control system adopts existing computer control technology; On the mechanical type type, set up relief arrangement, thickness adjusting apparatus, the blanking depth adjustment of coupling.These devices are " mechanical, electrical " or " mechanical, electrical, liquid " incorporate design (concrete structure is set forth by accompanying drawing), can adopt existing computer control technology equally.The porous building-brick mo(u)ldenpress is by following work step running.1, die sinking top base work step: feeding funnel retreats, framed unlatching, and lower die head rises to work top subsequently, ejects the building block base substrate.2, push away base filler work step: feeding funnel advances, and the building block base substrate is pushed away framed mouthful, finishes simultaneously and sweeps mould.Lower die head descends subsequently, and the core bar vibration is also followed decline, and the material of feeding funnel falls into framed, and under the effect of core bar exciting force, material falls between the gap of core bar gradually.3, cover mold precompressed work step: feeding funnel retreats, and it is framed mouthful that pressure block covers, and core bar continues vibration and pressing materials upwards, and the material in framed in down, continues to enter the gap of core bar in exciting force and extruding force double action.4, pressurization work step.Lower die head rises, and to the pressurization of the material in framed, pressing time was greater than 1.5 seconds.Porous building-brick mo(u)ldenpress provided by the invention, it is the compound forcing press of multiple moulding mechanism: 1, the porous building-brick of 50% hollow rate, its core interporal lacuna has only 4mm, and the blanking degree of depth needs 400mm, be 100 times of gap, the frictional resistance between well-known " arch bridge " effect and core bar makes mould because of losing efficacy by filler.This is the reason that the existing semidry method high pressure building block press in the world all can not be produced high hollow rate porous building-brick.Porous building-brick mo(u)ldenpress of the present invention, adopt " a kind of automatic die for powder pressed porous brick " underlying vibration core bar patent application structure, the precompressed action of core bar behind the cover mold simultaneously, material is subjected to the double action of vibration force and extruding force, overcome the frictional resistance between " arch bridge " effect and the fine and closely woven core bar effectively, solved the problem of " filler ".In filler and pre-Die for pressing cap work step, clearly, it is a vibration moulding type.2, at the pressurization work step, the structure of being implemented pressurization by lower die head makes the underlying core bar be in the state that is stretched, we know, the suffered pulling force of core bar is far below the pulling force allowable of core bar material, the core bar extension elongation is big more simultaneously, can not produce bending stress, so under any pressure tonnage, core bar all is in stable state, has guaranteed the action message of porous building-brick mould.3, in pressurization during work step, along with material is closely knit gradually, under the acting in conjunction of moisture content and fine cementitious matter, the plasticity extrusion effect has appearred in base substrate, holds time longly more when pressure, and the plasticity extrusion effect is obvious more, and " pressure decline " curve also fades away.Real machine checking proof, when pressure greater than 30Mpa, pressing time was greater than 1.5 seconds, material water ratio is at 8-12%, during fine material 20%, all can realize the plasticity extruding, thereby crossed the forbidden area of traditional theory " pressure decline ", therefore, it is again a high pressure semi-stiff extrusion machine.The technical staff of the industry knows: above-mentioned moisture content, and superfine material, the technical parameter of pressure and pressing time etc. is all within the routine techniques category of existing semidry method base.Because the press power of porous building-brick mo(u)ldenpress of the present invention is big especially, it can not need the backing plate demoulding, maintenance fully.Arrive this, whole purposes of the present invention all realize.

Porous building-brick mo(u)ldenpress of the present invention, adopt existing world press power the highest, the device of semidry method block machine that adaptability to raw material is the widest and " the underlying vibration core bar " of " a kind of automatic die for powder pressed porous brick " patent application, and the technical scheme that provides lower die head to pressurize; The technical scheme of the precompressed of core bar, the technical scheme of plasticity extruding, thus the patent application that has solved " a kind of automatic die for powder pressed porous brick " also not have the technical problem of solution when producing porous building-brick.It can adopt sand, flyash, stove quarrel, loess, cement, lime etc. to produce unburned knot porous building-brick for raw material; Can be that raw material is produced sintered porous building block also with clay inferior.It does not need backing plate demoulding maintenance, the porous building-brick that it is produced is the blind hole type, hollow rate is greater than 50%, and intensity is big especially, and outward appearance is carefully and neatly done, minimum hole is arranged several seven rows, minimum hole count 98 holes, the insulation of this porous building-brick, load-bearing, impervious, anti-freezing property are better than existing building-block greatly, and the building block cost is low, and mortar is not leaked in the core hole when building by laying bricks or stones, and body of wall is not afraid of the cloth tube opening.As everyone knows, porous building-brick is a progress to building-block, porous building-brick mo(u)ldenpress of the present invention can be with minimum glued raw material, the load-bearing of production maximum intensity, impervious porous building-brick, it brings up to 50% with hollow rate from existing 25%, not only insulation, heat-proof quality increase substantially, light weight, and also cost of material also reduces by 25%.The building block quality that it is produced is the highest, and cost is minimum; Its set multiple technologies scheme, reliable, technology is simple, can implement computer control, is a brand-new type.So it will dominate the market of world's building block machinery.

(4) description of drawings

The present invention is further described below in conjunction with drawings and Examples.

Fig. 1 is automatic pressing machine for blind multi-hole building-blocks work step figure.

Fig. 2 is automatic pressing machine for blind multi-hole building-blocks mold structure figure

Fig. 3 is a mechanical type automatic pressing machine for blind multi-hole building-blocks side sectional view.

Fig. 4 is a mechanical type automatic pressing machine for blind multi-hole building-blocks front section view.

Fig. 5 is a fluid pressure type automatic pressing machine for blind multi-hole building-blocks side sectional view.

How also Fig. 6 is fluid pressure type blind hole type building block mo(u)ldenpress front section view.

With reference to Fig. 1.Storage bin hopper 1, entablature 2, framed liner plate 5 are fixed part.Lower die head 17, core bar 11, core bar location-plate 19, core bar seat 20 are upper and lower moving component.Pressure block 3, feeding frame 33 interconnect (to call feeding funnel in the following text).The last plane of framed liner plate 5 is connected with platen (to call work top in the following text).Feeding funnel is between entablature 2 and work top.Storage bin hopper 1 is positioned at entablature 2 one sides.Core bar 11 passes the upper and lower of lower die head 17 and does upper and lower motion and vibration to through hole.This machine operates by following work step: 1, die sinking top base work step.Feeding funnel moves to right, and opens framed.Lower die head 17 rises, and base substrate 81 is ejected work top.2, push away base filler work step.Feeding funnel moves to left, and base substrate 81 is pushed to conveyer belt.Simultaneously, the plane is finished by friction and is swept die process on 17 of pressure block 3 lower planes and lower die head.After sweeping die process and finishing, lower die head 17 falls, and core bar 11 begins vibration and falls, and the material 83 in the feeding frame 33 falls, and the effect that material 83 fills up the framed of core bar top and is subjected to the core bar vibration force falls into the gap between the core bar gradually.3, cover mold precompressed work step.Feeding funnel moves to right, and pressure block 3 covers framed, and core bar is kept vibration and done ascending motion, and the material in framed is subjected to the double action of the extruding and the vibration of core bar, little by little clamp-ons the core bar gap, and the core bar top rises to apart from work top 3-5mm.4, pressurization work step.Lower die head rises, and pressing speed is adjusted pressure from fast to slow, and pressing time, raw material water content, superfine material ratio can make base substrate enter the zone of plasticity extruding, thereby suppress porous building-brick base substrate uniformly densely, finish a base circulation.Repeat process step 1 just begins new base circulation.

With reference to Fig. 2.Core bar 11, lower die head 17, core bar location-plate 19, core bar seat 20, vibrator 29 are formed a underlying vibrating core rod unit.It is the utilization of the described automatic die of " a kind of automatic die for powder pressed porous brick " patent application on interior building block mould.Via count 98 holes of lower die head 17.Being processed as of these through holes:, process through reaming again in the connection of holing respectively of the upper and lower faces of lower die head 17.The screw of core bar location-plate 19 must mate with the through hole of lower die head 17, and this specification requirement is easy to realize by frock.The screw that core bar 11 lower ends process screw thread and core bar location-plate 19 screws the location, also can adopt other version location.Vibrator 29 is to be made of the form vibrator of using on the existing building, also can be made of other vibrating devices.Guide post 10, following mode slider 13, core bar slide block 18 are formed building block automatic die track segments.Die shoe 16 inner hollow can be held core bar 11, core bar location-plate 19, core bar seat 20.The upper and lower side of two guide posts 10 is fixed.Four following mode sliders 13 are connected with lower plane with the last plane of die shoe 16 by bolt.Four following mode sliders 13 cooperate with the outside of guide post 10.Four core bar slide blocks 18 cooperate with the inboard of guide post 10, and are separately fixed at the last plane of core bar location-plate 19 and the lower plane of core bar seat 20 by bolt.Core bar location-plate 19 and core bar seat 20 link cost one, they can weld also can connect (not drawing among the figure) by bolt.The design of die shoe 16 both sides external has the force bearing ring of symmetry.Lower die head 17 is by on the last plane that is bolted to die shoe 16, thereby formed blind multi-hole building block automatic die.The force bearing ring of die shoe 16 cooperates with moved cross beam, by movable transverse crossbeam two ends base pressure is passed to lower die head, engages thereby finish with the moved cross beam that pressurizes, and reaches and vacate the central space that the core bar parts occupy, and cut off the purpose of guide rail tolerance build-up.

With reference to Fig. 3, Fig. 4.2,4 columns 27 of an entablature, sill 26, swing arm frame 61 are formed the organism frame of mechanical type building block press.Storage bin hopper 1, guide housing 32, framework 47 are formed " the storage bin hopper parts float ".The discharging opening of storage bin hopper can be done upper and lower floating in guide housing 32.Liner plate 5, framed 6, go up skeleton frame 7, lower frame seat 8 is formed framed parts.These framed parts can satisfy condition of high voltage to the requirement of framed rigidity and high abrasive conditions under to the compensatory requirement of mould.Preceding platen 31, tail plank 35 are formed framed workbench with framed parts and 1# bearing block 49.Pressure block 3, feeding frame 33 are formed the feeding funnel parts.The feeding funnel parts operate on work top.Core bar 11, lower die head 17, core bar location-plate 19, core bar seat 20, vibrator 29 and guide post 10, die shoe 16 are formed the porous building-brick automatic die.The force bearing ring of die shoe 16 both sides engages with the semilune ring seat of moved cross beam 64.Moved cross beam drives die shoe 16 by the semilune ring seat and upwards does the pressurization running.Guide post 10 is by last keeper 9, following keeper 80 location.Moved cross beam 64 two ends are connected with bent axle 67 by two link pins 74, two connecting rods 75.Bent axle 67 is installed on the sill 26 by four bearing blocks 66, and bent axle 67 1 ends are installed shaft joint 76, the other end is installed base wheel 78, middle part installation core bar cam 65.Bent axle 67 rotating speed 12-15 rev/mins.The stroke 200mm of connecting rod 75.Core bar cam 65 drives the upper and lower motion that core bar seat 20 is made the 100-150mm stroke by rotating shaft part 79.Fixedly wedge 40, movable wedge 41, fork 43, swing arm 42, pull bar 44 and electric control gear (not drawing among the figure) are formed the block thickness adjusting device.Fixedly the oblique angle of wedge 40, movable wedge 41 is identical and less than 15, to guarantee to reach the specification requirement of " self-locking ".Decompression swash plate 45, decompression frame 46, two decompression skewbacks 71 are formed mechanical pressure reducer.The upper and lower oblique angle symmetry of decompression skewback 71, total oblique angle are greater than 16 °, to guarantee to reach the specification requirement of " not self-locking ".Pressure reducer can become a vertical high-pressure decomposing low pressure of two levels.Two plunger case 70 interlockings bear horizontal pressure force in decompression frame 46 both sides.Two plunger cases 70 cooperate (not drawing among the figure) to form the safety device of fluid pressure type with a cover overflowing liquid pressure device.Thickness adjusting apparatus, mechanical type pressure reducer, hydraulic safety device and the storing parts integral body of floating connect into the entablature controllable component.The entablature controllable component connects to form framed by 4 backstays 69 and framed workbench---the entablature assembly that floats.Framed---the unsteady assembly of entablature is located by organism frame, can upper and lower displacement in the 0-50mm scope.1# conjugate cam 68 is installed on the inboard of base wheel 78, and 2# conjugate cam 77 is installed on the outside of base wheel 78.1# conjugate cam 68 cooperates with 1# conjugation fork 63, and connecting rod 52, middle fork 51, two side-sway bars 53, two earrings assemblies 73 drive die shoes 16 and do upper and lower motion in conjugation rotating shaft 62,1# draft link 59,1#.Die shoe 16 moves downward and is the filler operation, moves upward to be the top blank process, and the top base is 30T.2# conjugation fork 82 can rotate (not drawing on the side view) in conjugation rotating shaft 62.2# conjugate cam 77 cooperates with 2# conjugation fork 82.2# conjugation fork 82 drives feeding frame 33 through 2# side- sway bar 57,2 # rotating shaft 56,2# top link 54, connecting rod 48 and does the forward and back running, and design driven power is 10T.Conjugation rotating shaft 62 is installed in two conjugate axis and disseats on 60.1# rotating shaft 50 is installed on two 1# bearing blocks 49.2# rotating shaft 56 is installed on two 2# bearing blocks 55.

With reference to Fig. 5,6.Entablature 2, four columns 27, sill 26, tailstocks 39 are formed organism frames.Storage bin hopper 1, guide housing 32 are formed the magazine attachment that floats.Liner plate 5, framed 6, go up skeleton frame 7, lower frame seat 8 is formed framed parts.Preceding platen 31 tail planks 35 connect to form framed workbench with framed parts.Pressure block 3 connects to form the feeding funnel parts with feeding frame 33.The feeding funnel parts move on framed workbench.Core bar 11, lower die head 17, core bar location-plate 19, core bar seat 20, vibrator 29 and guide post 10, die shoe 16 are formed the porous building-brick automatic die.Guide post 10 upper ends are located by the locating hole of sill 26 by last keeper 9, lower end.Two three cantilevered corner beams 21, two force-bearing pins 23, two load heads 22 are formed the moved cross beam parts.The middle part of two three cantilevered corner beams is enclosed within on the support ring of die shoe 16, so moved cross beam can rotate around the support ring of die shoe 16.Two 1# high-voltage plunger cylinders 25 apply base pressure by 22 pairs of die shoes 16 of load head.1# cylinder 25 diameter of plunger 250mm, single cylinder nominal pressure 150T.2# cylinder 28 drives core bar seat 20 by rubber mat plate 24 and does vertical motion.2# cylinder 28 diameter of plunger 160mm, nominal pressure 30T.The swing arm parts of a rigidity are formed in two side-sway arms 14, arm shaft 12, middle swing arms 38.The swing arm parts are supported by Second Mate's bearing block 36.3# cylinder 37 drives the upper and lower running of moved cross beam by two earrings 15 of swing arm parts, load head 22.Earrings 15 has the free gap of 30-50mm, with the error that allows two 1# cylinders to be in operation.When swing arm parts driving moved cross beam operated downwards, the starting point of two 1# cylinders just realized synchronously.Like this, two each working cycles of 1# cylinder have all been eliminated the accumulation of error, reach the synchronous requirement of complete machine.3# cylinder 37 is double acting standard high-voltage oil cylinder, nominal pressure 30T, and 4# cylinder 34 directly drives feeding funnel and does the forward and back running.4# cylinder 34 is double acting standard oil cylinder, nominal pressure 10T.

(5) specific embodiment

With reference to Fig. 3,4.Complete machine is pressed the work step operation of Fig. 1 regulation, produces standard porous building-brick 720-900 piece during single mode, power of motor 30KW.As everyone knows, the reason that mechanical type building block forcing press is eliminated abroad has 2, and 1, top dead-centre is non-adjustable, thereby " deadlock " can take place at any time, it is unreliable to operate, and the external hydraulic damping device that adopts, directly bear whole press powers, complex structure is huge, and cost is high.2, automechanism complexity, difficulty of processing is big, the cost height.1. mechanical type porous building-brick mo(u)ldenpress of the present invention adopts the technical scheme that connects the small-sized hydraulic cylinder after the wedge decompression, and simple and reliable for structure, cost is extremely low.2. adopt the automatic control of conjugate cam, not only moving the running accurately and reliably, and compare with external uniform machines, simple in structure, difficulty of processing is low, and cost is minimum.The maintenance technology of mechanical type type requires far below the hydraulic pressure type, and output is far above the hydraulic pressure type, and operational reliability also is higher than the reliability of present China Hydraulic Elements.So it not only can " be bobbed up like a cork ", and can become China's leading type of present stage.

With reference to Fig. 5,6.Complete machine is pressed the work step operation of Fig. 1 regulation, produces standard porous building-brick 360-450 piece during single mode, power of motor 30KW, 300 liters/minute of hydraulic system maximum stream flows, maximum pressure 31.5Mpa, supporting three pump constant output pump stations.As everyone knows, fluid pressure type building block mo(u)ldenpress is simple in structure, and pressure is big, the dead point of not pressurizeing, running control flexibility.Fluid pressure type porous building block mo(u)ldenpress of the present invention, structure is more simple, after the structure that adopts bimodulus head, three die heads, can remedy the deficiency that yields poorly effectively, after the Hydraulic Elements performance of China improves, to become high performance type, be particularly conducive to the best sintered porous building block of production quality.

Claims (4)

1, a kind of automatic pressing machine for blind multi-hole building-blocks, it is the automatic pressing machinery of a kind of semidry method high pressure building block that mechanical type type and fluid pressure type type are arranged, lower die head in its automatic die has some through holes, some core bars pass the through hole of lower die head, the core bar upper end places framed, the core bar lower end is connected with vibrator, it is characterized in that:

A: it is inner for hollow structure that lower die head (17) is fixed on the upper and lower die holder of die shoe (16) (16), can hold core bar (11), core bar location-plate (19), core bar seat (20), vibrator (29) and two guide posts (10);

B: the outside of two guide posts (10) is the orbit of die shoe (16), and the inboard of two guide posts (10) is the orbit of core bar seat (20);

C: the force bearing ring, moved cross beam that die shoe (16) both sides external has a symmetry is with the force bearing ring fit of die shoe (16) or engage, around force bearing ring rotate, base pressure passes to the force bearing ring of die shoe (16) by the moved cross beam two ends, implements the running that lower die head is pressurizeed;

D: when the filler work step, the core bar vibration also descends, and when cover mold precompressed work step, core bar continues vibration and rises, and implements the material in framed is done the precompressed running.

2, automatic pressing machine for blind multi-hole building-blocks according to claim 1 is characterized in that: the mechanical type type has the mechanical pressure reducer of being made up of decompression swash plate (45), decompression frame (46), two decompression skewbacks (71).

3, automatic pressing machine for blind multi-hole building-blocks according to claim 1 is characterized in that: the mechanical type type has 1# conjugate cam (68) and 2# conjugate cam (77) and the two supporting automatic runnings of overlapping conjugation swing-bar mechanisms control lower die head and feeding funnel that are installed on bent axle (67) one ends.

4, automatic pressing machine for blind multi-hole building-blocks according to claim 1 is characterized in that: the fluid pressure type type has the swing arm parts of being made up of two side-sway arms (14), arm shaft (12), middle swing arm (38) to drive the upper and lower running of moved cross beam and realize that the starting point of two each working cycles of 1# cylinder is synchronous.

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