CN103231441A - Continuous extruder for concrete slabs - Google Patents

Abstract

The technology provides a continuous extruder for concrete slabs, which can continuously prepare concrete core slabs and is high in production efficiency. The continuous extruder comprises a machine frame and an extrusion bin with a feed port; a feed port cover plate is connected with a feed port cover plate driving device; one end of each mould core in the extrusion bin is connected with a tool holder bar on the machine frame; the circumferences of the mould cores gradually increase and then gradually diminish from one end to the other end; a push plate arranged on the tool holder bar in a sliding manner is connected with a push plate pushing device; the total of the maximum cross section areas of all the mould cores is x, the total of the one-end areas of the mould cores is y, the total of the other-end areas of the mould cores is z, and the cross section area of the extrusion bin is w, 3.5(w-x)>=w-y>=2.5(w-x),w-x>w-z>w-y; one end of each mould core is hexagonal and the other end is quadrilateral; and a stepped hole is formed in the center of one end of each mould core, a cylinder extending into the stepped hole is formed in one end of the tool holder bar, a screw hole is formed in the center of the cylinder, and a bolt matched with the screw hole penetrates the stepped hole to fix the mould core on the tool holder bar.

Description

The concrete slab continuous extruder

Technical field

Present technique relates to the preparation facilities of concrete core slab, relates in particular to the continuous preparation device of concrete core slab.

Background technology

Present concrete core slab all adopts template, and with the manual method preparation, production efficiency is low, waste of manpower.

Summary of the invention

The purpose of present technique provides and a kind ofly can prepare concrete core slab, concrete slab continuous extruder that production efficiency is high continuously.

This concrete slab continuous extruder comprises frame, and an end that is fixed on the frame is the extrude storehouse of the import other end for outlet; Extrude the storehouse on bulkhead charge door is set, at the charge door place charge door cover plate is set; The charge door cover plate links to each other with the charge door cover plate drive unit that is arranged on the frame that drive charge door cover plate moves; Be provided with at least one core rod in extruding the storehouse, an end of core rod links to each other with an end that stretches into the knife rest bar of extruding in the import of storehouse, and the other end of knife rest bar is arranged on the frame; The end to end of core rod from linking to each other with the knife rest bar, the periphery of its cross section reduces after increasing gradually more gradually; Outer peripheral face is slidingly arranged on the knife rest bar with the push pedal that the inwall of extruding storehouse import department matches, and push pedal links to each other with the push pedal thrust unit that is arranged on the support of drive push pedal along knife rest bar move left and right; Core rod has a plurality of, and each mold insert structure is identical; Each core rod maximum cross section area sum is x, each the core rod one end cross-sectional area sum that links to each other with the knife rest bar is y, and each core rod other end cross-sectional area sum is z, extrudes storehouse cross-sectional area w, 3.5 (w-x) 〉=w-y 〉=2.5 (w-x), w-x〉w-z〉w-y; Core rod is distributed on the same horizontal plane, and the distance between adjacent two core rods equates; The core rod one end cross section that links to each other with the knife rest bar is hexagon, and other end cross section is the quadrangle of band fillet; The central part of core rod one end that links to each other with the knife rest bar has stepped hole, knife rest bar one end that links to each other with core rod is provided with the cylinder that stretches in the stepped hole, cylindrical central part has screw, and the bolt that cooperates with screw passes stepped hole core rod is fixed on the knife rest bar.

The beneficial effect of present technique: because the end to end of core rod from linking to each other with the knife rest bar, the periphery of its cross section reduces after increasing gradually more gradually; That is to say that core rod outer surface and the gap of extruding between the inwall of storehouse reduce to increase gradually more earlier gradually.We are the core rod outer surface and extrude the zone that the gap between the inwall of storehouse reduces earlier gradually and be referred to as the compressional zone, behind core rod outer surface and the gap of extruding between the inwall of storehouse gradually the zone of increase be referred to as to loosen the district.Concrete is from the core rod outer surface and extrude gap between the inwall of storehouse when passing through, compressed compacting when passing through from the compressional zone earlier, density increase, and then through loosening the district, volume of concrete after the compression increases, unclamps (may make that its internal stress obtains discharging), when concrete leaves core rod like this, core rod place has originally just formed concrete hollow part, and the concrete of hollow part periphery can not cave in, slump.If core rod outer surface and extruding remains unchanged after gap between the inwall of storehouse reduces earlier gradually again, this state of the compressed a kind of maintenance in back of concrete, when leaving core rod Deng concrete, perhaps the reason that can not discharge owing to the concrete internal stress is big, the concrete of hollow part periphery will cave in, slump, and product quality is defective.Since 3.5 (w-x) 〉=w-y 〉=2.5 (w-x), w-x〉w-z〉w-y, further guaranteed concrete compression ratio (about 2.5 to 3.5 times), simultaneously, guaranteed that also the concrete of hollow part periphery can not cave in, come off, improved the quality of cored slab.Core rod is distributed on the same horizontal plane, distance between adjacent two core rods equates, can produce and have a plurality of cored slabs that are positioned at the hollow part (identical with core rod quantity) on the same horizontal plane, hollow part namely is a plurality of quadrangles that are positioned at the band fillet on the same horizontal plane, and this cored slab can carry bigger power; The syndeton of this knife rest bar and core rod is simple, reliable, has prevented exposing of connecting bolt, has reduced the resistance that concrete moves.

The process of this extruder production concrete core slab is as follows during use.The concrete that stirs is extruded the storehouse from the charge door adding, use the charge door cover plate to build charge door; The driving push pedal is moved, and concrete is extruded the storehouse to export a thruster moving from extruding storehouse import one side direction, make concrete pass through from core rod and the gap of extruding between the inwall of storehouse, but push pedal can not move to the periphery maximum of core rod; Drive the oppositely mobile sidepiece that is repositioned to the charge door below of push pedal; Simultaneously, the charge door cover plate is removed from charge door.The repetition said process gets final product.Why push pedal can not move to the periphery maximum of core rod, be in order to guarantee that the part in the concrete of compressed back also stays the compressional zone, like this, push pedal promotes the concrete that adds from charge door next time, when the concrete that the back adds is compressed by the compressional zone, just with stay the compressional zone in previous concrete between reliably contact, the pressure between them is just very big, previous concrete can and the concrete that adds of back between merge fully and do not have a slit.Like this, use this extruder, can produce the concrete core slab of endless fully.

Therefore, use the hollow part of the concrete core slab that this extruder produces can not cave in, slump.Concrete is through overcompression, and density is bigger, the concrete core slab intensity height that makes.Can produce the production efficiency height continuously.Can produce the concrete core slab of random length.

For convenience concrete is added and extrude in the storehouse, above-mentioned concrete slab continuous extruder arranges feed bin extruding top, storehouse, and the discharging opening of feed bin communicates with charge door; The charge door cover plate passes feed bin when moving, the periphery of charge door cover plate and feed bin inwall match.Preferably, it also comprises mobile truck device, and mobile truck device comprises stir storehouse, be arranged on shaft in the stir storehouse, shaft drive unit on the stirring vane on the shaft, the travelling carriage that links to each other with stir storehouse, shaft being set and being arranged on travelling carriage, that be used for driving the shaft rotation links to each other; Travelling carriage is slidingly arranged on the frame, and travelling carriage links to each other with the mobile truck drive unit of the mobile truck device of drive with respect to the frame move left and right; When mobile truck device moved to a certain position, the outlet of stir storehouse communicated with the import of feed bin; When mobile truck device moved to another position, the outlet of stir storehouse was arranged on shutter sealing on the frame, that be positioned at feed bin one side.Like this, when push pedal was carried out concrete compressed operation, stir storehouse returned to shutter top, and concrete can be placed in the stir storehouse and stir; When compressing the end of job, when the charge door cover plate leaves charge door, driving mobile truck device again, the outlet of stir storehouse communicates with the import of feed bin, and the concrete that stirs just falls in the feed bin automatically; Drive mobile truck device then, stir storehouse returns to shutter top, then pass through the movement of charge door cover plate, concrete in the feed bin is pressed into extrudes in the storehouse, carry out next step operation, so further enhance productivity, simultaneously by stirring vane on the shaft to concrete stirring, also prevented concrete the solidifying in the stir storehouse.Preferred again, reinforced to stir storehouse for convenience, it also comprises the hopper that is arranged on the frame; When the outlet shutter of stir storehouse sealed, the outlet of hopper communicated with the import of stir storehouse.Preferably, mobile truck drive unit is oil cylinder.

Above-mentioned concrete slab continuous extruder, extruding the storehouse is four cuboids that plate surrounds, an inwall of extruding the storehouse is provided with and extends to the lug boss of extruding storehouse outlet, is extruding the storehouse inwall and arranges and the corresponding recess of lug boss with relative another of storehouse inwall of extruding that lug boss is set.Like this, the outer peripheral face of the cored slab of producing is exactly and extrudes the rectangle that the storehouse matches, simultaneously, on two relative sides of cored slab, just formed fin (coincideing with the recess of extruding on the inwall of storehouse) and the groove (coincideing with the lug boss of extruding on the inwall of storehouse) that matches.Like this, cored slab is when splicing, and fin can embed groove, has formed tenon groove structure, and convenient splicing has also improved splicing back intensity.

Above-mentioned concrete slab continuous extruder, it also comprises wire-electrode cutting device, wire-electrode cutting device comprises sliding and cutting rack on the frame is set, is arranged on the line of cut on the cutting rack; Cutting rack is positioned at extrudes storehouse export department; Cutting rack with drive cutting rack, line of cut and export the cutting rack drive unit that a side direction opposite side moves and link to each other from extruding the storehouse.Though, this extruder can the production random length cored slab, but terminal surface that may cored slab may out-of-flatness, smooth for the terminal surface of cored slab, also in order to produce the accurate more cored slab of length, can use this cored slab of wire-electrode cutting device to cut off simultaneously.From cored slab being cut off moving by side to opposite side of cored slab, two end faces that are cut the cored slab that line cuts off are just very smooth under the drive of cutting rack for line of cut.Adopt line of cut to cut, can not cause other damage to cored slab, cut surface is smooth.Preferably, the cutting rack drive unit is oil cylinder.

Above-mentioned concrete slab continuous extruder, push pedal thrust unit are oil cylinder.Adopt oil cylinder to promote push pedal, than the push pedal thrust unit (as motor) of other type, thrust is big, and big to concrete pressure, power is little.

Above-mentioned concrete slab continuous extruder, charge door cover plate drive unit is oil cylinder.

Above-mentioned concrete slab continuous extruder, the end to end of core rod from linking to each other with the knife rest bar, the periphery of its cross section increases earlier gradually, remains unchanged, and then reduces gradually.We are the core rod outer surface and extrude the zone that the gap between the inwall of storehouse remains unchanged and be referred to as the pressurize district, concrete is from the core rod outer surface and extrude gap between the inwall of storehouse when passing through, compressed compacting when passing through from the compressional zone earlier, density increase, keep volume, density constant through the pressurize district again, and then through loosening the district, volume of concrete after the compression increases, unclamps (may make that its internal stress obtains discharging), like this, it is milder that the concrete internal stress changes, further prevented the hollow part periphery concretely cave in, slump.

Present technique provides a kind of simultaneously and can produce continuously, the production efficiency height can be produced the concrete core slab continuous producing method of the concrete core slab of random length, and the concrete core slab density that this method is produced is bigger, intensity height, hollow part can not cave in, slump.

This concrete core slab continuous producing method is used above-mentioned concrete slab continuous extruder, and it comprises the steps:

A, the concrete that stirs added from charge door extrude the storehouse, use the charge door cover plate to build charge door;

B, drive push pedal and move, concrete is extruded the storehouse to export a thruster moving from extruding storehouse import one side direction, make concrete pass through from core rod and the gap of extruding between the inwall of storehouse, but push pedal can not move to the periphery maximum of core rod;

C, driving push pedal be the mobile sidepiece that is repositioned to the charge door below oppositely; Simultaneously, the charge door cover plate is removed from charge door.

D, repeat above-mentioned steps a, b, c; The concrete core slab of moulding just constantly exports out from extruding the storehouse.

Preferably, it also comprises the steps: by cutter sweep the cored slab of extruding to be cut off when the concrete core slab of moulding reaches the length that needs.

Description of drawings

Fig. 1 is the front view of concrete slab continuous extruder.

Fig. 2 is the left view of concrete slab continuous extruder.

Fig. 3 is the connection diagram of parts such as knife rest bar, knife rest bar fixed block, push pedal, push rod.

Fig. 4 is the vertical view of Fig. 3.

Fig. 5 is the schematic diagram of push pedal.

Fig. 6 is the schematic diagram of knife rest bar fixed block.

Fig. 7 is the left view of Fig. 6.

Fig. 8 is the schematic diagram of knife rest bar.

Fig. 9 is the left view of Fig. 8.

Figure 10 is connection diagrams such as push pedal, push rod.

Figure 11 is the schematic diagram of extruding the storehouse.

Figure 12 is the left view of Figure 11.

Figure 13 is the front view of mobile truck device.

Figure 14 is the left view of Figure 13.

Figure 15 is the vertical view of Figure 13.

Figure 16 is the schematic diagram of wire-electrode cutting device.

Figure 17 is wire-electrode cutting device and extrudes the relativeness schematic diagram in storehouse.

Figure 18 is the core rod front view among the embodiment 1.

Figure 19 is the left view of Figure 18.

Figure 20 is the right view of Figure 18.

Figure 21 is the vertical view of Figure 18.

Figure 22 is the schematic diagram of die arrangement.

Figure 23 be embodiment 1 produce go out the cored slab schematic diagram.

Figure 24 is the stereogram that the core rod among the embodiment 2 links to each other with the knife rest bar.

Figure 25 is the front view that the core rod among the embodiment 2 links to each other with the knife rest bar.

Figure 26 is the left view that the core rod among the embodiment 2 links to each other with the knife rest bar.

Figure 27 is the vertical view that the core rod among the embodiment 2 links to each other with the knife rest bar.

Figure 28 be embodiment 2 produce go out the cored slab schematic diagram.

The specific embodiment

Embodiment 1:

Referring to the concrete slab continuous extruder shown in Fig. 1,2, comprise and extrude storehouse 1, core rod 2, push plate device 3, mobile truck device 4, knife rest bar 5, die arrangement 7, wire-electrode cutting device 9, frame 10, hopper 11, feed bin 12, shutter 13.

Extrude storehouse 1 and be four and extrude the cuboid that storehouse plate 101 surrounds, left end is import 106, and right-hand member is outlet 107.Two relative inwalls of extruding storehouse plate 101 are provided with side convex template 102, re-entrant mold plate 103.Side convex template 102 is provided with parallel two and extends to the lug boss 104 of extruding the storehouse outlet, and re-entrant mold plate 103 is provided with parallel two and extends to the recess 105 of extruding the storehouse outlet, and recess 105 and lug boss 104 are corresponding tenon groove structures.

Die arrangement 7 comprises pressing mold lower plate 71, pressing mold frame 72, two parallel pressing mold guide pillars 73, pressing mold oil cylinder 74.Pressing mold lower plate 71 is arranged on the bottom of pressing mold frame; Pressing mold guide pillar 73 is arranged on the top of pressing mold frame, and being arranged in the guide pin bushing on the frame of sliding up and down.The cylinder body of pressing mold oil cylinder 74 is arranged on the frame, and its piston rod links to each other with the pressing mold frame, to drive pressing mold lower plate 71(pressing mold frame 72, pressing mold guide pillar 73) move up and down along guide pin bushing.

The feed bin 12 that is mainly surrounded by four blocks of plates 121 is set extruding top, storehouse, the bottom discharging opening of feed bin with open extrude the storehouse on charge door on the bulkhead communicate; Pressing mold lower plate 71 periphery matches with the feed bin inwall, also matches with the periphery of charge door simultaneously.

When pressing mold oil cylinder 74 action, when driving the pressing mold lower plate and moving up and down, the pressing mold lower plate is passed feed bin, and can stretch into and cover charge door in the charge door.Therefore, the pressing mold lower plate also plays the effect of charge door cover plate, also can be regarded as the charge door cover plate.

Be provided with eight core rods 2 in extruding the storehouse, each core rod is on same horizontal plane, and the distance between adjacent two core rods equates.

The right-hand member of eight knife rest bars 5 stretches into to be extruded in the import of storehouse, and the right part cylinder 51 of its eight knife rest bars 5 stretches in the stepped hole 26 on the left side of core rod.Zhou Peihe in cylinder 51 peripheries and the stepped hole 26, bolt 201 pass the stage portion of stepped hole 26 and cooperate with screw that cylinder 51 central parts have, thereby handle links to each other core rod with the knife rest bar.The left end of knife rest bar with stretch in the knife rest bar hole 205 on the knife rest bar fixed block 202, and by the holding screws 203 that stretch in the screw 206 on the knife rest bar fixed block knife rest bar and knife rest bar fixed block are fixedly linked, knife rest bar fixed block is bolted to connection on frame 10.

The right-hand member of core rod 2 stretches in the outlet of extruding in the storehouse, does not extrude the storehouse but stretch out.Referring to Figure 19, the left side 21 of core rod 2 is hexagon, and right side 23 is the quadrangle of band fillet.From the left end to the right-hand member, periphery at scope inner mould core 2 cross sections in 27 districts increases (cross-sectional circumference carries out the transition to the band fillet gradually from hexagon quadrangle) gradually, periphery at scope inner mould core 2 cross sections in 28 districts constant (cross-sectional circumference 25 is the quadrangle of band fillet) reduces (cross-sectional circumference is for being with the quadrangle of fillet) gradually in the periphery of scope inner mould core 2 cross sections in 29 districts.The area of the core rod left side 21 that is surrounded by many lines 22 is b, and the area of the core rod right side 23 that is surrounded by a plurality of lines 24 is c, and the area that the periphery of the cross section of core rod 2 in 28 districts (can referring to figure in 25) surrounds is a.Eight core rod maximum cross section area sums are x=8a, eight core rod left side area sums are y=8b, eight core rod right side area sums are z=8c, extrude storehouse cross-sectional area (the i.e. area in the zone 108 that surrounds of the inner surface of the inner surface of two inner surfaces of extruding storehouse plate 101, side convex template 102, re-entrant mold plate 103 up and down, referring to Figure 11) w, 3.3 (w-x) 〉=w-y 〉=3 (w-x), w-x〉w-z〉w-y.

Push plate device 3 comprises the push pedal 31 that is fixed on eight push rod 33 right-hand members, is arranged on the backboard 32 of push pedal left side periphery etc., and the push rod left end passes drive plate 35 and by being fixed on the drive plate 35 with push rod nut engaged 34.

The outer peripheral face of push pedal 31 matches with the inwall of extruding storehouse import department, and the knife rest bar passes eight sliding eyes 37 in the push pedal, and knife rest bar and push pedal form and be slidingly connected.Eight push rods 33 pass out eight push-rod holes 204 on knife rest bar fixed block 202.

Drive plate 35 links to each other with the piston rod that the push pedal that drives move left and right such as drive plate, push rod, push pedal promotes oil cylinder 36, and the cylinder body that push pedal promotes oil cylinder 36 arranges on the support.Push pedal promotes oil cylinder 36 actions, drive drive plate, push rod, push pedal etc. with respect to knife rest bar, knife rest bar fixed block, extrude move left and right such as storehouse.

In the mobile truck device 4, shaft 42 passes stir storehouse 41, stirring vane 43 arranges on the shaft, travelling carriage 44 links to each other with stir storehouse, shaft stretches out stir storehouse and links to each other with sprocket wheel 45, stirring motor 46 is arranged on the travelling carriage, and the sprocket wheel 47 that arranges on the output shaft of stirring motor links to each other with sprocket wheel 45 by chain 52.Travelling carriage 44 bottoms arrange a plurality of pulleys 48, and pulley 48 rolls along the slide rail 49 on the fixed frame.Travelling carriage links to each other with the piston rod that the mobile truck that drives move left and right such as travelling carriage, stir storehouse drives oil cylinder 50, and the cylinder body that mobile truck drives oil cylinder 50 arranges on the support.Mobile truck drives oil cylinder 50 actions, and when the driving stir storehouse moved to right, the lower part outlet of stir storehouse communicated with the upper inlet of feed bin; When driving stir storehouse and moving to left, stir storehouse moves to shutter 13 tops of feed bin one side, the outlet of the stir storehouse plate sealing that is blocked.

Hopper 11 is arranged on upper rack, and its underpart periphery arranges flexible rubber slab 111.When stir storehouse is positioned at shutter top, during the sealing of the outlet shutter of stir storehouse, the outlet of hopper communicates with the import of stir storehouse.Why in hopper 11 bottoms rubber slab 111 being set, is for when stir storehouse moves, and can the movement of stir storehouse not counteracted, and has also prevented leaking outside when material enters stir storehouse from hopper simultaneously.

Wire-electrode cutting device 9 comprise slide by roller 91 cutting rack 92 on the frame is set, two ends are fixed on the cutting steel wire 93 on the cutting rack up and down; Cutting rack is positioned at extrudes storehouse export department; Cutting rack links to each other with the piston rod that cutting rack drives oil cylinder 94, and the cylinder body that cutting rack drives oil cylinder 94 arranges on the support.Cutting rack drives oil cylinder 94 actions, drive cutting rack and move with respect to frame, cutting steel wire 93 extrude storehouse export department right side, mobile in perpendicular to the plane of core rod, thereby cutting off from extruding the concrete core slab that storehouse export department comes out.

Mobile truck drive unit, cutting rack drive unit, push pedal thrust unit, charge door cover plate drive unit are oil cylinder, and like this, this concrete slab continuous extruder power source kind is few on the whole, and cost is low, and power is little, and is big to concrete thrust.

The concrete core slab continuous producing method is as follows:

A, material stir: during initial state, stir storehouse is on the shutter top of feed bin one side, the outlet of the stir storehouse plate sealing that is blocked, and hopper communicates with stir storehouse.In stir storehouse, add concrete by hopper, the stirring motor action, shaft rotates, and concrete is stirred.

B, filler: mobile truck drives cylinder action, drives stir storehouse and moves to right, and stir storehouse separates with hopper, shutter, and the lower part outlet of stir storehouse communicates with the upper inlet of feed bin; Concrete fall in the stir storehouse extrude in the import department of storehouse and feed bin in;

C, mobile truck device return: truck drives the oil cylinder counteragent, drives stir storehouse and moves to left, and stir storehouse separates with feed bin, moves between hopper and the shutter; The be blocked plate sealing of the lower part outlet of stir storehouse; In stir storehouse, add concrete by hopper, the stirring motor action, shaft rotates, and concrete is stirred.

D, material put in storage: the pressing mold cylinder action, pressing mold lower plate, pressing mold frame etc. move down along guide pin bushing, the pressing mold lower plate is passed feed bin arrival bin outlet (being equivalent to extrude the storehouse charge door) and is located, and material in the feed bin is pressed into extrudes in the storehouse, and the storehouse charge door is extruded in sealing simultaneously.

E, material compression are extruded: push pedal promotes cylinder action, the driving push pedal moves to right and locates to the core rod left side, concrete is extruded the storehouse to export a thruster moving from extruding storehouse import one side direction, make concrete pass through from core rod and the gap of extruding between the inwall of storehouse, the part in the concrete of simultaneously compressed back is also stayed the compressional zone.

F, push plate device and die arrangement return: push pedal promotes the action of oil cylinder direction, drives the oppositely mobile left side that is repositioned to the charge door below of push pedal; Simultaneously, the pressing mold oil cylinder is oppositely mobile, and pressing mold lower plate (charge door cover plate) is left the charge door place and moved up, and is higher than the stir storehouse upper surface up to the lower surface of pressing mold lower plate.

G, repeat above-mentioned steps b-f, the concrete core slab of moulding just constantly exports out from extruding the storehouse.

H, cut-out: when the concrete core slab of moulding reaches the length that needs, cutting rack drives cylinder action, drive cutting steel wire etc. moves by side to opposite side from one of cored slab in perpendicular to the plane of cored slab moving direction, the cutting steel wire is namely the cored slab cut-out of extruding.

The end view drawing of the cored slab 15 that use embodiment 1 produces is referring to Figure 23.

Embodiment 2:

Embodiment 2 and embodiment 1 different being: the syndeton of core rod difference, core rod and knife rest bar is different.Specify below.

Among the embodiment 2, the right-hand member of eight knife rest bars 5 links to each other with the left end of three connecting plates 14 up and down respectively, core rod 8 has 33, and (core rod that is positioned at the both sides on the by-level face all is half core rod, is connected between this half core rod another one core rod adjacent with its level.Two half core rods can be can be regarded as a complete core rod), be distributed on three horizontal planes, the distance between adjacent two core rods of a horizontal plane equates, the core rod that the is positioned at different level setting of staggering up and down.From the left end to the right-hand member, increase gradually in the periphery of scope inner mould core 8 cross sections in 87 districts, constant in the periphery of scope inner mould core 8 cross sections in 88 districts, reduce gradually in the periphery of scope inner mould core 8 cross sections in 89 districts, and become hexagonal core rod right side gradually.

Have groove 86 on the left side of core rod, the left side is separated into two districts 85,84 up and down.Groove 86 extends in 87 districts that the core rod periphery increases gradually.The right-hand member of a connecting plate stretches into the groove 86 that is positioned at the core rod on the same horizontal plane respectively.The thickness of the connecting plate left end portion 141 between the adjacent knife rest bar increases from left to right gradually, wedgewise.The connecting plate right end portion that stretches in the core rod left end groove is uniform thickness.

As different from Example 1, when considering the area of core rod left side, among the embodiment 2 because there being connecting plate to stretch in the groove, connecting plate has occupied concrete and passed through the space in extruding the storehouse, therefore the area of connecting plate will be counted the area of core rod left side, that is to say, the area b of a complete core rod left side should=quantity+left side of connecting plate right side 142 areas/the be connected core rod on the same connecting plate on district's 85 areas+left side inferior segment 84 areas.The regular hexagon area of a complete core rod right side 83 is c, and the area that the periphery of the cross section of a complete core rod in 88 districts surrounds is a.33 core rod maximum cross section area sums are that x approximates 33a, 33 core rod left side area sums are that y approximates 33b, 33 core rod right side area sums are that z approximates 33c, extrude storehouse cross-sectional area (the i.e. area that surrounds of the inner surface of the inner surface of two inner surfaces of extruding storehouse plate 101, side convex template 102, re-entrant mold plate 103 up and down, referring to Figure 11) w, 3 (w-x) 〉=w-y 〉=2.6 (w-x), w-x〉w-z〉w-y.

The end view drawing of the cored slab 16 that use embodiment 2 produces is referring to Figure 28.

Claims (6)

1. the concrete slab continuous extruder comprises frame, it is characterized in that: an end that is fixed on the frame is the extrude storehouse of the import other end for outlet; Extrude the storehouse on bulkhead charge door is set, at the charge door place charge door cover plate is set; The charge door cover plate links to each other with the charge door cover plate drive unit that is arranged on the frame that drive charge door cover plate moves; Be provided with at least one core rod in extruding the storehouse, an end of core rod links to each other with an end that stretches into the knife rest bar of extruding in the import of storehouse, and the other end of knife rest bar is arranged on the frame; The end to end of core rod from linking to each other with the knife rest bar, the periphery of its cross section reduces after increasing gradually more gradually; Outer peripheral face is slidingly arranged on the knife rest bar with the push pedal that the inwall of extruding storehouse import department matches, and push pedal links to each other with the push pedal thrust unit that is arranged on the support of drive push pedal along knife rest bar move left and right;

Core rod has a plurality of, and each mold insert structure is identical; Each core rod maximum cross section area sum is x, each the core rod one end cross-sectional area sum that links to each other with the knife rest bar is y, and each core rod other end cross-sectional area sum is z, extrudes storehouse cross-sectional area w, 3.5 (w-x) 〉=w-y 〉=2.5 (w-x), w-x〉w-z〉w-y; Core rod is distributed on the same horizontal plane, and the distance between adjacent two core rods equates; The core rod one end cross section that links to each other with the knife rest bar is hexagon, and other end cross section is the quadrangle of band fillet; The central part of core rod one end that links to each other with the knife rest bar has stepped hole, knife rest bar one end that links to each other with core rod is provided with the cylinder that stretches in the stepped hole, cylindrical central part has screw, and the bolt that cooperates with screw passes stepped hole core rod is fixed on the knife rest bar.

2. concrete slab continuous extruder as claimed in claim 1 is characterized in that: feed bin is set extruding top, storehouse, the discharging opening of feed bin communicates with charge door; The charge door cover plate passes feed bin when moving, the periphery of charge door cover plate and feed bin inwall match.

3. concrete slab continuous extruder as claimed in claim 2, it is characterized in that: further comprising mobile truck device, mobile truck device comprises stir storehouse, be arranged on shaft in the stir storehouse, shaft drive unit on the stirring vane on the shaft, the travelling carriage that links to each other with stir storehouse, shaft being set and being arranged on travelling carriage, that be used for driving the shaft rotation links to each other; Travelling carriage is slidingly arranged on the frame, and travelling carriage links to each other with the mobile truck drive unit of the mobile truck device of drive with respect to the frame move left and right; When mobile truck device moved to a certain position, the outlet of stir storehouse communicated with the import of feed bin; When mobile truck device moved to another position, the outlet of stir storehouse was arranged on shutter sealing on the frame, that be positioned at feed bin one side.

4. concrete slab continuous extruder as claimed in claim 3 it is characterized in that: further comprising the hopper that is arranged on the frame; When the outlet shutter of stir storehouse sealed, the outlet of hopper communicated with the import of stir storehouse.

5. concrete slab continuous extruder as claimed in claim 1, it is characterized in that: extruding the storehouse is four cuboids that plate surrounds, an inwall of extruding the storehouse is provided with and extends to the lug boss of extruding storehouse outlet, is extruding the storehouse inwall and arranges and the corresponding recess of lug boss with relative another of storehouse inwall of extruding that lug boss is set.

6. concrete slab continuous extruder as claimed in claim 1 it is characterized in that: further comprising wire-electrode cutting device, and wire-electrode cutting device comprises sliding and cutting rack on the frame is set, is arranged on the line of cut on the cutting rack; Cutting rack is positioned at extrudes storehouse export department; Cutting rack with drive cutting rack, line of cut and export the cutting rack drive unit that a side direction opposite side moves and link to each other from extruding the storehouse.

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