CN203768203U - Compaction device for foam glass batch - Google Patents

Abstract

The utility model discloses a compaction device for foam glass batch, belonging to the field of foam glass. Carded batch in a mould is compacted by virtue of a pressure plate with a through hole and a lower surface fixed with a silk screen through an automated mechanical mode. The compaction device comprises a driving mechanism, a connecting rod, a pressure plate, a rack, a sensor, a clamping mechanism, a transmission roller and a controller, wherein the driving mechanism, the connecting rod and the pressure plate are connected in sequence from top to bottom; the top of the driving mechanism is fixed on a cross beam of the rack; the clamping mechanism is fixed on the inner side surface of a vertical column of the rack and is higher than the plane of the transmission roller. A pressure of 1-20KPa is applied to the batch by the pressing plate; after the batch is compacted, the pressing plate is lifted up through the driving mechanism; the mould is released by the clamping mechanism and leaves from the compaction device under the action of the transmission roller. According to the compaction device, the phenomena of non-uniform porous structures of cross sections, plough-shaped recesses in surfaces and the like of foam glass products are eliminated, and even the problem of porcelainization in the products is solved.

Description

A kind of compaction apparatus for multicellular glass admixtion

Technical field

The utility model relates to a kind of compaction apparatus of the admixtion for multicellular glass.

Background technology

Multicellular glass is by quantitative glass cullet, whipping agent, auxiliary agent, through grinding, forms even admixtion.Cooperation is put into heat-resisting die, the vesicular glass material generating through techniques such as preheating, sintering, foaming, cooling, annealing, above-mentioned technique is that multicellular glass is produced and extensively adopted " powder method " technique.In multicellular glass, abscess accounts for 80～95% of its cumulative volume, and cell diameter mostly is 0.5～2mm, and its volume density is 100～200kg/m ³.Multicellular glass is a kind of heat insulation, sound absorption of superior performance, moistureproof, fp light high-strength building material and finishing material.

Foam glass product is divided into heat insulation-type goods and sound absorption-type goods.Heat insulation-type multicellular glass is mainly used charcoal class whipping agent, comprise carbon black, graphite, carborundum etc., the abscess of its goods is enclosed construction, between abscess, be not connected each other, in production, must avoid being communicated with between abscess, being communicated with abscess will cause the thermal conductivity of multicellular glass to increase, so heat insulation-type multicellular glass has significant adiabatic heat-insulation, fire prevention, waterproof and anti-corrosion function.Heat insulation-type multicellular glass is widely used in industrial heat preservation and building heat preservation.

The bubble structure homogeneity of multicellular glass insulating product section will affect multicellular glass visual appearance and product performance, occur Abnormal Atmospheric bubble on goods section, will have a strong impact on product appearance quality and product performance; The section bubble distribution situation of the goods that general monoblock blank cuts is: the bubble of outside surface is large, and the bubble at center is little, and the Air Bubble Size size difference at the appearance of foam glass product and center surpasses 50% sometimes; Because bubble ununiformity can have a strong impact on the thermal conductivity of goods, goods appearance volume density is little, and thermal conductivity is little, and the volume density of article center is large, and thermal conductivity is large, also can cause the prolongation in rough annealing cycle, surpasses 36 hours, even reaches 48 hours; The damaged probability of the blank of annealing increases in addition, and normal circumstances blank breakage rate is less than 5%, and because bubble is inhomogeneous, can cause blank percentage of damage to be greater than 5%; Be subject in addition the impact of gross blow hole, also can cause physical strength to decline, comprise resistance to compression, anti-folding, tensile strength; Due to pore ununiformity, even affect the water-intake rate of multicellular glass insulating product.

Cause the major cause of multicellular glass insulating product air hole structure inequality to be that the admixtion cloth of traditional " powder method sintering process " processes problem, traditional technology is that admixtion is put into after mould, adopt artificial combing spreading out device that admixtion is flattened in mould, this grooming tool is similar to the comb structure of combing hair, this grooming tool is comprised of metal sheet and the wire of ladder structure, and diameter 2-5mm wire is welded on the long parallel edges of trapezoidal metal sheet by spacing 25-50mm.By all around repeatedly combing can realize the smooth of admixtion, combing flattening process will make admixtion become loose, and in admixtion upper surface, leaves plough shape cut, in carding process, air can be mixed in admixtion and plough shape cut.The admixtion of combing is sent into foaming kiln with mould and is carried out preheating, when sintering and foaming, because admixtion becomes loose, can cause the heat-transfer capability of admixtion to decline, upper surface takes the lead in occurring sintering and foamable reaction with other five faces that contact mould, and heat in foaming kiln is just difficult to import into fast admixtion inside, often occur that the inner abscess of blank is little, the situation that appearance abscess is large, in addition, due to the air being mingled with in admixtion, so cause oxygen in the preferential and admixtion air entrainment of carbon black to react, generally there will be three kinds of situations: first, at plough, shape groove mark place produces " porcelain ", be that charcoal class whipping agent is in advance by oxygen depletion, admixtion can not fully foam, obviously vitrifying of surface, color blushing, second, foamed glass blank inside, because be mingled with air fails to discharge in time, is wrapped in blank and there will be abnormal large abscess, because first admixtion is surface in being subject to thermal process, is subject to heat-seal, cause inner air expansion to form large connection pore, more than size even reaches 10mm, the 3rd, at the plough shape groove mark place of foamed glass blank upper surface, produce the groove mark that obviously sink, the sagging degree of depth reaches 5-10mm, even larger, mainly due in carding process, admixtion is subject to the metal-toothed effect of grooming tool, and admixtion is split into metal-toothed both sides, the admixtion of metal-toothed position is relatively less, therefore after sintering and foaming, has just more clearly displayed.

The utility model object solves in conventional foam process of glass process exactly, be subject to after combing effect, the phenomenons such as the inhomogeneous and surperficial appearance plough of the section air hole structure shape depression of foam glass product, even there is the generation of " porcelain " problem goods inside, reduce multicellular glass air blister defect, improve product appearance quality, realize product volume density uniformity, suppressing surface plough shape groove mark depression and inner porcelainization occurs, improve blank foaming height, reduce volume density, obtain the more multicellular glass insulating product of low thermal conductivity, improved the physical strength of multicellular glass insulating product simultaneously.

Utility model content

The utility model based on multicellular glass powdery admixtion combing in mould shakeout process, because admixtion becomes more loose, tap density only has 0.95-1.10g/cm ³cause the more air of admixtion inner inclusion, easily produce the various defects described in utility model background, comprise that " porcelain ", air spots, abnormal abscess increase, foaming height reduces, therefore, invented a kind of compaction apparatus for multicellular glass admixtion.

A compaction apparatus for multicellular glass admixtion, is characterized in that: comprise driving mechanism 1, connecting rod 2, pressing plate 3, frame 5, sensor 6, clamping device 7, delivery roll 8 and controller 9; The position relationship of driving mechanism 1, connecting rod 2, pressing plate 3 is for being connected successively from top to bottom, pressing plate has fixedly silk screen of through hole and lower surface, it is upper that the top of driving mechanism 1 is fixed on the crossbeam 5-1 of frame 5, and clamping device is fixed on the medial surface of framework pillar and higher than delivery roll plane.

Compaction apparatus of the present utility model, by being exerted pressure in admixtion surface, discharges the air being mingled with in admixtion to greatest extent, makes admixtion more closely knit, and tap density can reach 1.20-1.35g/cm ³, strengthened the capacity of heat transmission of admixtion, promote that admixtion short period of time in heat-processed can reach temperature even, thereby realize the even foaming of multicellular glass admixtion, obtain more perfectly foam glass product of quality.

Accompanying drawing explanation

Fig. 1 is the utility model schematic diagram.

1. driving mechanism 2. connecting rod 3. pressing plate 3-1. through hole 4. silk screen 5. frame 5-1. crossbeam 6. sensor 7. clamping device 7-1. clamping plate 8. delivery roll 9. controller 10. moulds

Embodiment

Driving mechanism 1 can be hydraulic way or pneumatic mode.Driving mechanism 1 is connected to the upper surface of pressing plate 3 by connecting rod 2, the panel size of pressing plate 3 and mold bottom size match, pressing plate side and mould side spacing are that 3-5mm is best, the preferred 10-30mm of thickness of pressing plate 3, its material preferable alloy, wood, plastics or other matrix material, pressing plate 3 has through hole 3-1, and through hole has scavenging action, the form of through hole 3-1 includes but not limited to rectangle, pros, rhombus, trapezoidal, circular etc., and hole area is 10-1600mm ²hole width between centers is 10-80mm, silk screen 4 at pressing plate 3 lower surface fixing metals or nylon material, silk screen 4 has exhaust and stops the excessive effect of admixtion, the eyelet of silk screen 4 is 16-120 order, the position relationship of driving mechanism 1, connecting rod 2, pressing plate 3 is for being connected successively from top to bottom, and the top of driving mechanism 1 is fixed on the crossbeam 5-1 of frame 5.When carrying through the mould 10 of the smooth admixtion of combing by delivery roll 8, arrive pressing plates 3 under time, sensor 6 is by signal feedback to controller 9, sensor 6 includes but not limited to optoelectronic switch, travel switch, limit switch.Controller 9 output control signals are to clamping device 7, clamping device 7 is fixed on the column inner side of frame 5, higher than delivery roll plane, the clamping plate 7-1 of clamping device 7 clamps two symmetrical sides of mould in modes of action such as pneumatic, hydraulic pressure or mechanical linkages, make mould in stationary state.With through-hole structure and lower surface fixedly the pressing plate 3 of silk screen under the effect of driving mechanism 1, move down, 3 pairs of admixtion powder of pressing plate apply reactive force, effect pressure reaches 1-20KPa, being mixed in air in admixtion discharges by the through hole 3-1 on pressing plate 3 and silk screen 4, pressing plate is 3-15 second to being the action time of admixtion, and tap density reaches 1.20-1.35g/cm ³, then pressing plate 3 upwards promotes under the effect of driving mechanism 1, and the clamping plate 7-1 of clamping device 7 leaves mould, and the mould of compacting admixtion can leave compaction apparatus under delivery roll 8 effects, then enters foaming kiln and carries out sintering and foaming.

Above-mentioned utility model is the description based on Automatic Production Line process, and the utility model comprises manual compaction apparatus and the semi-automatic compaction apparatus of simplifying by this principle equally.Pressing plate 3 is for meeting compacting and the smooth needs of admixtion; On pressing plate, through hole 3-1 and silk screen 4 are in order to meet the air entrainment discharge in admixtion and to stop admixtion to overflow effect along through hole; Driving mechanism 1 is the elevating function of realizing pressing plate 3; Clamping device 7 is to realize mould fixed function.

Multicellular glass admixtion compaction apparatus of the present utility model, under the precondition not changing, the in the situation that of adding Glass Batch Quality also identical, can obtain following useful effect in mould at multicellular glass processing parameter.

1) abscess of foam glass product is evenly improved and improves.Abscess mean sizes deviate converges to 0.3mm, and the goods abscess-size deviate of compaction treatment is not 0.8mm.

2) foam glass product outward appearance abscess defect obviously reduces.The abscess of 5-10mm specification reduces 50%, and being greater than 10mm specification abscess does not have, and the foam glass product of compaction treatment not, the abscess that is greater than 10mm specification has 5/m ².

3) " porcelain " phenomenon generation of shape groove mark or groove mark below is not ploughed on blank surface.The foamed glass blank of compaction treatment plough shape groove mark is not high-visible, and the degree of depth can reach 10mm, can reduce blank and cut material rate 2-4%, inner yellow or the white inclusion of often occurring, and such defect is " porcelain " product.

4) blank foaming height has improved 3-5%, the volume density 3-5% that declined, the thermal conductivity 2-3% that declined;

5) foamed glass blank annealing breakage rate has reduced by 3%, and breakage rate originally approaches or is greater than 5%, and the admixtion of compaction treatment only has less than 2% blank breakage rate abscess.

Claims (2)

1. for a compaction apparatus for multicellular glass admixtion, it is characterized in that: comprise driving mechanism, connecting rod, pressing plate, frame, sensor, clamping device, delivery roll and controller; The position relationship of driving mechanism, connecting rod, pressing plate is for being connected successively from top to bottom, and pressing plate has fixedly silk screen of through hole and lower surface, and the top of driving mechanism is fixed on the crossbeam of frame, and clamping device is fixed on the medial surface of framework pillar and higher than delivery roll plane.

2. a kind of compaction apparatus for multicellular glass admixtion according to claim 1, is characterized in that: the through-hole form of described pressing plate is rectangle, pros, rhombus, trapezoidal or circular, and hole area is 10-1600mm ², hole width between centers is 10-80mm, perforation size is 16-120 order.