CN113119281A - Aerated concrete block preparation system and preparation process - Google Patents

Abstract

The invention discloses an aerated concrete block preparation system which comprises a bracket, a mould mechanism and a lifting mechanism, wherein the bracket is fixedly connected with the bracket; the die mechanism comprises a die frame, a driving unit, a connecting ring, a connecting rod, a sliding rod and a die side plate; the connecting ring is positioned on the die frame and can rotate; the driving unit drives the connecting ring to rotate; the plurality of die side plates are arranged inside the connecting ring, are sequentially arranged along the circumferential direction of the connecting ring to form a die cavity, and are in sliding connection with the adjacent die side plates; the slide bar is located between the connecting ring and the die side plate, and forms sliding connection with the die frame along the radial direction of the connecting ring, one end of the slide bar forms sliding connection in the horizontal direction with the die side plate, the other end of the slide bar is rotatably connected with one end of the connecting rod, and the other end of the connecting rod is rotatably connected with the connecting ring. The aerated concrete block preparation system provided by the invention can meet the requirements of preparation of aerated concrete blocks with different sizes, can also be used for rapidly demoulding, and can be used for improving the preparation efficiency and quality of the aerated concrete blocks.

Description

Aerated concrete block preparation system and preparation process

Technical Field

The invention belongs to the technical field of aerated concrete blocks, and particularly relates to a preparation system and a preparation process of an aerated concrete block.

Background

The aerated concrete is a light porous silicate product prepared by taking siliceous materials (sand, fly ash, siliceous tailings and the like) and calcareous materials (lime, cement) as main raw materials, adding a gas former (aluminum powder) and carrying out the processes of proportioning, stirring, pouring, pre-curing, cutting, autoclaving, curing and the like, and is named as aerated concrete because the aerated concrete contains a large amount of uniform and fine pores after gas generation.

Aerated concrete is often used as a material for preparing aerated concrete blocks, and the commonly used aerated concrete blocks are generally in a square structure, and the aerated concrete blocks in the square structure can be used as load-bearing blocks. When the aerated concrete block is prepared, concrete is generally poured into a special mould and is processed through various procedures to obtain the final aerated concrete block.

In the existing aerated concrete block preparation process, because the aerated concrete blocks are different in specification and size, a plurality of groups of moulds with different specifications are required to be prepared in advance according to the size of the prepared aerated concrete block, and thus the cost of manufacturing equipment is increased. Meanwhile, the mold needs to be disassembled after the aerated concrete block is dried, most of the existing molds are of an integrated forming structure, and the disassembling process is extremely complex, so that the preparation efficiency of the whole aerated concrete block is low.

Disclosure of Invention

Aiming at the problems in the existing aerated concrete block preparation process, the invention provides a preparation system and a preparation process of an aerated concrete block.

The aerated concrete block preparation system comprises a bracket, a mould mechanism and a lifting mechanism; the lifting mechanism is positioned between the bracket and the die mechanism so as to drive the die mechanism to perform reciprocating movement in the vertical direction relative to the bracket;

the die mechanism comprises a die frame, a driving unit, a connecting ring and a plurality of connecting rods, sliding rods and die side plates which correspond to one another one by one; the mould frame is connected with the lifting mechanism and can reciprocate relative to the bracket; the connecting ring is positioned on the die frame and can perform reciprocating rotation; the driving unit is positioned on the die frame and connected with the connecting ring so as to drive the connecting ring to perform reciprocating rotation; the plurality of mould side plates are arranged inside the connecting ring along the vertical direction, are sequentially connected along the circumferential direction of the connecting ring to form a mould cavity corresponding to the shape of the mould, and can slide relatively between the adjacent mould side plates; the slide bars are positioned between the connecting rings and the die side plates and form sliding connection with the die frame along the radial direction of the connecting rings, one ends of the slide bars form sliding connection with the corresponding die side plates along the horizontal direction, the other ends of the slide bars are rotatably connected with one ends of the corresponding connecting rods, and the other ends of the connecting rods are rotatably connected with the connecting rings;

in the process that the driving unit drives the connecting rings to rotate in a reciprocating mode, the connecting rings simultaneously drive all the connecting rods to rotate in a reciprocating mode, the connecting rods respectively drive the corresponding sliding rods to move in a reciprocating mode in the radial direction of the connecting rings, and then the corresponding die side plates are driven by the sliding rods to move in a reciprocating mode in the radial direction of the connecting rings, so that the die side plates form relative movement, and the size of a die cavity defined by the die side plates is changed.

Preferably, the die side plate is provided with a first sliding chute, a second sliding chute and a sliding pin; the first sliding groove is arranged along the horizontal direction and is in sliding connection with the end part of the sliding rod; the second sliding grooves are arranged along the horizontal direction and are respectively positioned at two ends of the die side plates along the horizontal direction together with the sliding pins, and the adjacent two die side plates are in sliding connection along the length direction of the second sliding grooves through the second sliding grooves and the sliding pins.

Further preferably, the mould side plates are L-shaped plates and comprise mould sections with longer relative sizes and adjusting sections with shorter relative sizes; the first sliding groove is formed in one side, close to the sliding rod, of the mold section, the second sliding groove is formed in one side, close to the axis of the connecting ring, of the mold section, and the sliding pin is located in the adjusting section and perpendicular to the adjusting section.

Preferably, the connecting ring adopts an external gear ring structure, and the driving unit and the connecting ring form a tooth meshing transmission connection.

Further preferably, the driving unit comprises a driving cylinder and a rack; the rack is coaxially and fixedly connected with the extending end of the driving cylinder, and the rack is in sliding connection with the die frame and is in tooth meshing transmission connection with the connecting ring.

Preferably, the lifting mechanism comprises a telescopic rod; one end of the telescopic rod is connected with the support, and the other end of the telescopic rod is connected with the die mechanism so as to drive the die mechanism to perform reciprocating movement in the vertical direction relative to the support.

Preferably, the lifting mechanism comprises two telescopic rods, namely a first telescopic rod and a second telescopic rod; one end of the first telescopic rod is rotatably connected with the bracket, and the other end of the first telescopic rod is rotatably connected with the die mechanism; one end of the second telescopic rod is rotatably connected with the support, and the other end of the second telescopic rod is rotatably connected with the die mechanism.

Preferably, the first telescopic rod and the second telescopic rod are rotatably connected with the top of the mold frame, and a scraping groove is formed in the top of the mold frame; the scraping groove penetrates through the upper portion of the die side plate in the horizontal direction, the second telescopic rod is connected with the scraping groove in a sliding mode, a cutter is arranged at the end portion of the telescopic rod, and the cutter can slide through the top of the die side plate along the scraping groove.

Preferably, a plurality of connecting rings and the corresponding connecting rods, the sliding rods and the die side plates are arranged in the die mechanism, and the connecting rings are simultaneously connected with the driving unit.

A preparation process of an aerated concrete block adopts the aerated concrete block preparation system to prepare the aerated concrete block, and comprises the following specific steps:

step S1, adjusting the mold cavity; firstly, the connecting rings are controlled to rotate by the driving unit, and all the connecting rods are driven by the connecting rings to synchronously rotate, so that the corresponding sliding rods are driven by the connecting rods to linearly slide relative to the die frame, and then the corresponding die side plates are driven by the sliding rods to move, and the size of a die cavity defined by a plurality of die side plates is adjusted; then, the lifting mechanism drives the die mechanism to move in the vertical direction, so that the bottom edges of the plurality of die side plates are in flat contact with the bottom surface of the support at the same time, and the lower end of the die cavity is blocked;

step S2, slurry pouring; injecting a slurry into the mold cavity through the upper end of the mold cavity;

step S3, demoulding the blank; after the slurry in the mold cavity is molded and the formed aerated concrete blank is expanded and hardened, firstly, the connecting rings are controlled to rotate reversely by the driving units, all the connecting rods are driven to synchronously rotate reversely by the connecting rings, so that the corresponding sliding rods are driven by the connecting rods to linearly slide relative to the mold frame in the direction close to the connecting rings, and then the corresponding mold side plates are driven by the sliding rods to move in the direction far from the axis of the connecting rings, so that the size of the mold cavity defined by the plurality of mold side plates is increased, and the mold side plates are separated from the contact with the aerated concrete blank; then, the lifting mechanism drives the die mechanism to move in the vertical direction, so that the die mechanism can move upwards relative to the aerated concrete blank, and the aerated concrete blank is demoulded;

and step S4, slitting, autoclaved curing and discharging the demolded aerated concrete blank to finally obtain the aerated concrete block.

The aerated concrete block preparation system disclosed by the invention is used for preparing the aerated concrete block, and has the following beneficial technical effects:

1. in the aerated concrete block preparation system, the side plates of the mould which enclose the mould cavity are arranged in the connecting rings and are connected with the connecting rings through the sliding rods and the connecting rods, and the connecting rings are connected with the driving unit. Therefore, the position relation between the die side plates in the connecting ring can be changed by means of the rotation control of the driving unit on the connecting ring, and the size of a die cavity formed by the die side plates is adjusted, so that the size of the aerated concrete block which can be prepared by the change fast and conveniently is met, the preparation of aerated concrete blocks with different sizes is met, and the use efficiency of the aerated concrete block preparation system is improved.

2. In the aerated concrete block preparation system, the connecting ring is controlled by the driving unit to rotate, and the die side plate can be driven by the connecting rod and the sliding rod to move towards the direction far away from the axis of the connecting ring, so that the demoulding operation can be easily and conveniently completed, the efficiency and the quality of the demoulding operation are improved, and the quality of the finally prepared aerated concrete block is ensured.

3. In the aerated concrete block preparation system, when the two telescopic rods are adopted to control the lifting of the mould mechanism, the horizontal scraping groove is arranged on the mould frame, and the end part of the second telescopic rod, which is provided with the scraper, is arranged in the scraping groove, so that the scraper can be driven to reciprocate horizontally along the scraping groove by virtue of the telescopic motion of the second telescopic rod, and thus, the redundant slurry overflowing out of the mould cavity can be scraped, the leveling effect of the top of the formed aerated concrete block blank body is ensured, and the quality of the aerated concrete block finally prepared is improved.

Drawings

Fig. 1 is a schematic cross-sectional structure view of the aerated concrete block preparation system of the embodiment before preparation of the aerated concrete block;

fig. 2 is a schematic structural diagram of the aerated concrete block preparation system according to the embodiment when a second telescopic rod drives a scraper to move;

fig. 3 is a schematic cross-sectional structure diagram of a blank body in demoulding during preparation of an aerated concrete block by the aerated concrete block preparation system according to the embodiment;

fig. 4 is a schematic cross-sectional structure view of a mold mechanism in the aerated concrete block preparation system of the embodiment;

FIG. 5 is a schematic cross-sectional view taken along the direction M-M in FIG. 4;

fig. 6 is an enlarged view of a portion of the structure at I in fig. 5.

Detailed Description

The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and embodiments.

Referring to fig. 1 to 6, the aerated concrete block manufacturing system of the present embodiment includes a support 1, a mold mechanism 2, and a lifting mechanism 3. Wherein, the bracket 1 is of a v-21274-shaped structure and comprises an upper top and a lower bottom along the horizontal direction. The mould mechanism 2 and the lifting mechanism 3 are both positioned between the upper top and the lower bottom of the support 1, one end of the lifting mechanism 3 is connected with the upper top of the support 1, and the other end of the lifting mechanism 3 is connected with the mould mechanism 2 so as to drive the mould mechanism 2 to perform reciprocating movement in the vertical direction between the upper top and the lower bottom of the support 1.

In the present embodiment, the mold mechanism 2 includes a mold frame 21, a driving unit 22, three connecting rings 23, twelve connecting rods 24, twelve sliding rods 25, and twelve mold side plates 26. The mold frame 21, which is the outer frame of the mold mechanism 2, is directly connected to the elevating mechanism 3 and can reciprocate relative to the frame 1. The three connection rings 23 are located on the die holder 21 in a side-by-side manner, and each can perform reciprocating rotation about an axis in a horizontal plane. The driving unit 22 is also located on the mold frame 21 and is connected to the three connection rings 23 respectively to drive the three connection rings 23 to perform respective reciprocating rotation around the axis.

The twelve mold side plates 26 are divided into three groups on average, and are respectively positioned inside the three connecting rings 23. The four mold side plates 26 located in the same connecting ring 23 are arranged in the vertical direction, and are sequentially connected and arranged in the circumferential direction of the connecting ring 23, and the two adjacent mold side plates 26 are perpendicular to each other and can slide relatively, so that a square mold cavity 27 corresponding to a square mold is defined by the four mold side plates 26.

Twelve slide bars 25 are equally divided into three groups, one inside each of the three connecting rings 23. Wherein, four slide bars 25 in the same connecting ring 23 are located between the connecting ring 23 and four die side plates 26, and form a sliding connection with the die frame 21 between the connecting ring 23 and the die side plates 26 along the horizontal direction, and can perform reciprocating linear movement along the diameter direction of the connecting ring 23, and at the same time, form a sliding connection between one end of each slide bar 25 and the corresponding die side plate 26.

The twelve connecting rods 24 are equally divided into three groups, which are respectively positioned inside the three connecting rings 23. Wherein, four connecting rods 24 located in the same connecting ring 23 are distributed in a position relationship of adjacent 90-degree included angles, and one end of each connecting rod 24 is rotatably connected with the connecting ring 23 in a hinged manner, and the other end is rotatably connected with the other end of the corresponding sliding rod 25 in a hinged manner.

At this time, in the process that the driving unit 22 drives the connection ring 23 to perform reciprocating rotation, the connection ring 23 can simultaneously drive the four connection rods 24 located inside the connection ring to perform reciprocating movement, so that the four connection rods 24 respectively drive the four slide bars 25 to perform reciprocating linear movement along the radial direction of the connection ring 23, and further, the four slide bars 25 simultaneously drive the four mold side plates 26 to perform reciprocating linear movement along the radial direction of the connection ring 23, and under the condition that the slide bars 25 are horizontally and slidably connected with the mold side plates 26, the four mold side plates 26 can keep mutually perpendicular relationship to move, so that the size adjustment of the mold cavity 27 under the condition that the shape is not changed is achieved.

As shown in fig. 6, the mold side plate 26 of the present embodiment is provided with a first slide groove 261, a second slide groove 262, and a slide pin 263. Wherein the first slide groove 261 is provided in the mold side plate 26 on the side close to the slide bar 25 in the horizontal direction, and forms a slide connection with the end of the slide bar 25 in the length direction thereof. The second slide grooves 262 are arranged in the horizontal direction and are located at both ends of the mold side plates 26 in the horizontal direction with the slide pins 263, respectively, and a sliding connection in the length direction of the second slide grooves 262 is formed between two adjacent mold side plates 26 through the second slide grooves 262 and the slide pins 263.

At this moment, when the connecting rod drives the slide bar to carry out the linear motion along the radial direction of the connecting ring, the slide bar can drive the mould side plate which is connected with the slide bar in a sliding way to carry out the synchronous motion along the radial direction of the connecting ring through the connection of the second sliding groove and the slide pin, and when the four mould side plates simultaneously carry out the synchronous motion along the radial direction of the connecting ring, the relative sliding along the first sliding groove is formed between the mould side plate and the corresponding slide bar, the relative movement along the direction of the first sliding groove can be formed between the two adjacent mould side plates, so that the smooth adjustment of the size of the mould cavity enclosed between the four mould side.

Further, as shown in fig. 5 and 6 in conjunction, in the present embodiment, for the square mold, the mold side plate 26 employs an L-shaped plate including a mold segment having a relatively long size and an adjustment segment having a relatively short size, and the mold segment and the adjustment segment are perpendicular to each other. The first sliding slot 261 is opened on one side of the mold segment close to the sliding rod 25, the second sliding slot 262 is opened on one side of the mold segment close to the axis of the connecting ring 23, the sliding pin 263 is located on the adjusting segment and keeps a vertical relation with the adjusting segment, and the mold segment between two adjacent mold side plates 26 and the adjusting segment form a joint sliding connection, so that the mold segment between two adjacent mold side plates 26 keeps a vertical relation.

At this moment, through the mould curb plate that adopts L shaped plate structural style to set up second spout and sliding pin respectively at the mould section with adjust the section, just can carry out along second spout direction reciprocating motion's in-process between adjacent mould curb plate, make the second spout be in the outside in mould chamber all the time, thereby guarantee the integrality in the mould chamber that forms, realize the free adjustment to mould chamber size of a dimension in second spout length range.

In other embodiments, according to different requirements on the size of the mold cavity, the size relationship among the length of the mold cavity, the length of the second chute and the length of the adjusting section can be adjusted, so that the moving distance range between two adjacent mold side plates along the direction of the second chute is changed, the requirements on adjusting the size of the mold cavity are met, and the preparation of aerated concrete blocks with different sizes is realized.

In addition, in other embodiments, according to different shapes of the moulds, the number and the size of the side plates of the moulds and the mutual position relation in the connecting ring can be adjusted, for example, for an equilateral triangle mould, three mould side plates with the same size can be arranged in the connecting ring and are uniformly distributed along the circumferential direction of the connecting ring, meanwhile, the included angle relationship between the adjusting section and the die section in the die side plates is adjusted, and the number and the connecting position of the corresponding slide bars and connecting rods are adjusted and changed, so that the adjacent two die side plates can slide relatively, so as to form triangular mould cavities with different sizes, and also can increase the number of the side plates of the mould to form a pentagonal mould cavity and a hexagonal mould cavity, thereby forming a mould mechanism with different mould shapes and meeting the requirements of the preparation of aerated concrete blocks with different shapes.

In the present embodiment, the connecting ring 23 is in the form of an external gear ring structure, and the driving unit 22 is in transmission connection with the three connecting rings 23 in a tooth meshing manner so as to drive the three connecting rings 23 to perform reciprocating rotation. Wherein, the driving unit 22 comprises a driving cylinder 221 and a rack 222, the driving cylinder 221 adopts a hydraulic cylinder and the output shaft thereof is coaxially and fixedly connected with the rack 222, and the rack 222 is slidably connected with the die frame 21 and forms a tooth meshing connection with the three connecting rings 23. Therefore, the rack can be driven to perform reciprocating linear movement by controlling the extension and recovery movement of the driving cylinder, so that the three connecting rings are driven to perform reciprocating rotation.

In the embodiment, synchronous rotating connection of the three connecting rings is realized by means of the racks, so that the efficiency of adjusting the sizes of the three die cavities is improved, driving equipment is reduced, and the effects of reducing the cost of the whole system and the control complexity are achieved. However, in other embodiments, according to different use conditions, independent drive control may also be performed on the three connection rings, for example, a drive motor is respectively provided for each connection ring, and the drive motor and the connection ring are connected through a gear, so that independent drive control may be performed on each connection ring, and independent adjustment control of the size of each mold cavity is achieved.

As shown in fig. 1 to 4, the lifting mechanism 3 of the present embodiment includes a first telescopic rod 31 and a second telescopic rod 32. One end of the first telescopic rod 31 is rotatably connected with the left position of the upper top in the bracket 1 in a hinged manner, and the other end is rotatably connected with the left area position of the top in the mold frame 21 in a hinged manner. One end of the second telescopic rod 32 is hinged and rotatably connected with the right position of the upper top in the bracket 1, and the other end is hinged and rotatably connected with the right area position of the top in the mold frame 21.

At the moment, the mould frame can be driven to do reciprocating movement in the vertical direction relative to the support by controlling the lifting and contracting actions of the first telescopic rod and the second telescopic rod, so that the position of the whole mould mechanism in the vertical direction is adjusted.

Two guide rods 33 are also provided in the lifting mechanism 3. One end of each guide rod 33 is fixedly connected with the top of the mold frame 21, and the other end of each guide rod passes through the upper top of the support 1 along the vertical direction and is in sliding connection with the upper top of the support 1 along the vertical direction. At the moment, the mould frame can be guided along the reciprocating movement in the vertical direction by virtue of the two guide rods, so that the stability of the mould frame in reciprocating movement relative to the support is improved, and the preparation quality of the aerated concrete block is ensured.

Further, in the present embodiment, a scraping groove 211 is provided at the top of the mold frame 21, and the scraping groove 211 slides in the horizontal direction from above the mold side plates 26 inside the three connection rings 23 in sequence. At this time, the end of the second telescopic rod 32 extends into the scraping groove 211 and is slidably connected to the scraping groove 211 by a sliding pin, so that it can reciprocate along the scraping groove 211. Meanwhile, a scraper 4 is arranged at the end part of the second telescopic rod 32, and the blade edge of the scraper 4 faces the side plate 26 of the mould.

At this moment, when first telescopic link and second telescopic link carry out the simultaneous extension motion and move the mould frame to the position of going to the bottom of support, keeping under the motionless condition of first telescopic link, continue to control the second telescopic link again and stretch out the motion, will make the second telescopic link drive the scraper and slide along the direction of scraping the groove to first telescopic link to make the scraper slide three go-between in proper order. After the second telescopic link is recycled to the position far away from the first telescopic link in the scraping groove, the synchronous recycling motion of the first telescopic link can be matched to drive the mold frame to ascend and move in the vertical direction by continuing the recycling motion. Like this, with the help of the second telescopic link with scrape the cooperation in groove, both can utilize the cooperation of second telescopic link with first telescopic link to accomplish the adjustment along vertical direction to whole mould mechanism, also can drive the scraper and carry out the reciprocating motion of horizontal direction along scraping the groove to improve the availability factor of second telescopic link.

Similarly, in other embodiments, depending on the size and weight of the mold mechanism, other mechanisms may be used as the lifting mechanism to drive the mold mechanism to reciprocate in the height direction, for example, a hydraulic cylinder with a larger output force is used as the lifting mechanism, and the hydraulic cylinder may be directly arranged between the support and the mold frame in the vertical direction to achieve the movement of the mold mechanism in the vertical direction. In this case, a separate drive member, such as an electric pole, may be provided parallel to the scraping trough to independently control the reciprocating movement of the scraping blade along the scraping trough. Of course, the number of the telescopic rods can be adjusted according to the size and the weight of the die mechanism, so that the stability of reciprocating movement of the die mechanism is met.

With reference to fig. 1 to 6, when the aerated concrete block preparation system of the embodiment is used for preparing a square aerated concrete block, the concrete steps are as follows:

step S1, adjust the mold cavity. And correspondingly adjusting the size of the die cavity according to the size of the aerated concrete block required to be prepared.

Firstly, a driving cylinder 221 in the driving unit 22 is started, the driving cylinder 221 drives a rack 222 to move so as to simultaneously drive three connecting rings 23 to rotate, the connecting rings 23 respectively drive four connecting rods 24 therein to synchronously rotate, and then the connecting rods 24 drive sliding rods 25 connected with the connecting rods to linearly move along the radial direction of the connecting rings, so that the corresponding mold side plates 26 are driven by the sliding rods 25 to move, under the relative sliding between the sliding rods and the mold side plates 26 and the relative sliding between two adjacent mold side plates 26, the four mold side plates 26 in the connecting rings 23 simultaneously form the movement along the radial direction of the connecting rings, so that the size of a mold cavity 27 enclosed by the four mold side plates 26 is changed, and after the size of the mold cavity is adjusted according to the size of a square aerated concrete block, the action of the driving cylinder is stopped.

Then, the first telescopic rod 31 and the second telescopic rod 32 in the lifting mechanism 3 are controlled to simultaneously extend, and the die mechanism 2 is placed downwards in the vertical direction until the bottom edge of the die side plate 26 in the die mechanism 2 is flatly contacted with the bottom edge of the support 1. At this time, the lower end of the mold cavity is blocked by the lower bottom of the bracket 1.

And step S2, pouring the slurry. The slurry prepared in advance is injected into the interior of the mold cavity 27 from the upper end of the mold cavity 27. Wherein, the preparation work of the slurry mainly comprises the following steps:

and step T1, preparing raw materials. According to the requirements of the materials required by the prepared aerated concrete block, the raw materials are prepared and stored as required for subsequent use.

And step T2, stirring the ingredients. According to the preparation process requirement of the slurry required by the prepared aerated concrete block, the prepared raw materials are proportioned quantitatively and added and stirred in sequence to obtain the qualified slurry which is uniformly stirred and meets the requirement of the preparation of the aerated concrete block.

And step S3, demolding the blank. And (2) after the slurry is formed and the formed aerated concrete blank expands and hardens, carrying out demoulding operation on the aerated concrete blank, wherein the demoulding operation on the aerated concrete blank specifically comprises the following steps:

firstly, the driving cylinder 221 in the driving unit 22 is started again, the driving cylinder 221 drives the rack 222 to move reversely, so as to drive the three connecting rings 23 to rotate reversely, the connecting rings 23 drive the four connecting rods 24 therein to rotate synchronously, and the connecting rods 24 drive the sliding rods 25 connected therewith to move linearly along the radial direction of the connecting rings, so that the corresponding die side plates 26 are driven by the sliding rods 25 to move in the direction away from the axis of the connecting rings, and under the relative sliding between the sliding rods and the die side plates 26 and the relative sliding between two adjacent die side plates 26, the size of the die cavity 27 enclosed by the four die side plates 26 is increased, so that the die side plates 26 are separated from the contact with the aerated concrete blank inside.

Then, the first telescopic rod 31 and the second telescopic rod 32 in the lifting mechanism 3 are controlled to perform recovery movement at the same time, and the mould mechanism 2 is pulled upwards in the vertical direction, so that the mould mechanism 2 is lifted and moved relative to the aerated concrete green body, and the demoulding operation of the aerated concrete green body is completed.

In the process of standing and maintaining the slurry inside the mold cavity before step S3, the slurry is aerated, expanded and thickened in the mold cavity 27 to form an aerated concrete blank. Wherein, when the aerated concrete body in mould cavity 27 inside expands, the inside partial thick liquids of mould cavity 27 will expand and rise and spill over, keep first telescopic link 31 motionless and two guide bars 33 to mould mechanism 2 along under the positioning action of horizontal direction this moment, control second telescopic link 32 and stretch out the motion, carry out reciprocating sliding along scraping groove 211 with driving scraper 4, thereby will rise and strike off owing to the inflation thick liquids that spill over, make the thick liquids height in the mould cavity 27 keep flushing with mould curb plate 26 top, guarantee the roughness of the aerated concrete body top that forms behind the quiet stop maintenance, and then guarantee the regular degree of size of the aerated concrete block that finally forms.

And step S4, slitting, autoclaved curing and discharging the demolded aerated concrete blank to finally obtain the aerated concrete block. The method comprises the following steps of cutting and steam curing the demolded aerated concrete blank, so that the aerated concrete blank is cured by high-temperature steam to complete the internal full hydration reaction, and the aerated concrete blank can meet the requirement of compressive strength. And then, lifting, inspecting and packaging the autoclaved aerated concrete blank after the autoclaved aerated concrete blank is taken out of the kettle, so that the preparation of the aerated concrete block is completed, and the aerated concrete block is obtained.

In the mold mechanism of the aerated concrete block preparation system, three mold cavities consisting of the connecting rings, the connecting rods, the sliding rods and the mold side plates are arranged, so that three aerated concrete green bodies can be prepared at the same time, and the preparation efficiency of the aerated concrete blocks is improved. In other embodiments, according to design and actual conditions, the number of the mold cavities formed by the connecting rings, the connecting rods, the sliding rods and the mold side plates in the mold mechanism can be completely adjusted, so that the aerated concrete blanks with different numbers can be prepared at one time, and different preparation efficiencies of the aerated concrete blocks can be obtained.

Claims (10)

1. The aerated concrete block preparation system is characterized by comprising a support, a mould mechanism and a lifting mechanism; the lifting mechanism is positioned between the bracket and the die mechanism so as to drive the die mechanism to perform reciprocating movement in the vertical direction relative to the bracket;

the die mechanism comprises a die frame, a driving unit, a connecting ring and a plurality of connecting rods, sliding rods and die side plates which correspond to one another one by one; the mould frame is connected with the lifting mechanism and can reciprocate relative to the bracket; the connecting ring is positioned on the die frame and can perform reciprocating rotation; the driving unit is positioned on the die frame and connected with the connecting ring so as to drive the connecting ring to perform reciprocating rotation; the plurality of mould side plates are arranged inside the connecting ring along the vertical direction, are sequentially connected along the circumferential direction of the connecting ring to form a mould cavity corresponding to the shape of the mould, and can slide relatively between the adjacent mould side plates; the slide bars are positioned between the connecting rings and the die side plates and form sliding connection with the die frame along the radial direction of the connecting rings, one ends of the slide bars form sliding connection with the corresponding die side plates along the horizontal direction, the other ends of the slide bars are rotatably connected with one ends of the corresponding connecting rods, and the other ends of the connecting rods are rotatably connected with the connecting rings;

in the process that the driving unit drives the connecting rings to rotate in a reciprocating mode, the connecting rings simultaneously drive all the connecting rods to rotate in a reciprocating mode, the connecting rods respectively drive the corresponding sliding rods to move in a reciprocating mode in the radial direction of the connecting rings, and then the corresponding die side plates are driven by the sliding rods to move in a reciprocating mode in the radial direction of the connecting rings, so that the die side plates form relative movement, and the size of a die cavity defined by the die side plates is changed.

2. The aerated concrete block preparation system of claim 1, wherein the mold side plate is provided with a first chute, a second chute and a sliding pin; the first sliding groove is arranged along the horizontal direction and is in sliding connection with the end part of the sliding rod; the second sliding grooves are arranged along the horizontal direction and are respectively positioned at two ends of the die side plates along the horizontal direction together with the sliding pins, and the adjacent two die side plates are in sliding connection along the length direction of the second sliding grooves through the second sliding grooves and the sliding pins.

3. The aerated concrete block preparation system of claim 2, wherein the mould side plates are L-shaped plates comprising a relatively long mould section and a relatively short adjustment section; the first sliding groove is formed in one side, close to the sliding rod, of the mold section, the second sliding groove is formed in one side, close to the axis of the connecting ring, of the mold section, and the sliding pin is located in the adjusting section and perpendicular to the adjusting section.

4. The aerated concrete block preparation system of claim 1, wherein the connecting ring is of an external gear ring structure, and the drive unit and the connecting ring form a toothed gearing connection therebetween.

5. The aerated concrete block preparation system of claim 4, wherein the drive unit comprises a drive cylinder and a rack; the rack is coaxially and fixedly connected with the extending end of the driving cylinder, and the rack is in sliding connection with the die frame and is in tooth meshing transmission connection with the connecting ring.

6. The aerated concrete block preparation system of claim 1, wherein the lifting mechanism comprises a telescoping rod; one end of the telescopic rod is connected with the support, and the other end of the telescopic rod is connected with the die mechanism so as to drive the die mechanism to perform reciprocating movement in the vertical direction relative to the support.

7. The aerated concrete block preparation system of claim 6, wherein the lifting mechanism comprises two telescoping rods, a first telescoping rod and a second telescoping rod; one end of the first telescopic rod is rotatably connected with the bracket, and the other end of the first telescopic rod is rotatably connected with the die mechanism; one end of the second telescopic rod is rotatably connected with the support, and the other end of the second telescopic rod is rotatably connected with the die mechanism.

8. The aerated concrete block preparation system of claim 7, wherein the first and second telescoping rods are both rotatably connected to the top of the mold frame and have a scraping groove at the top of the mold frame; the scraping groove penetrates through the upper portion of the die side plate in the horizontal direction, the second telescopic rod is connected with the scraping groove in a sliding mode, a cutter is arranged at the end portion of the telescopic rod, and the cutter can slide through the top of the die side plate along the scraping groove.

9. The aerated concrete block preparation system of any one of claims 1 to 8, wherein a plurality of connecting rings and the corresponding connecting rods, the sliding rods and the mould side plates are provided in the mould mechanism, and a plurality of the connecting rings are simultaneously connected with the drive unit.

10. A preparation process of an aerated concrete block, which is characterized in that the preparation of the aerated concrete block is carried out by adopting the aerated concrete block preparation system of any one of claims 1 to 9, and the preparation process comprises the following specific steps:

step S1, adjusting the mold cavity; firstly, the connecting rings are controlled to rotate by the driving unit, and all the connecting rods are driven by the connecting rings to synchronously rotate, so that the corresponding sliding rods are driven by the connecting rods to linearly slide relative to the die frame, and then the corresponding die side plates are driven by the sliding rods to move, and the size of a die cavity defined by a plurality of die side plates is adjusted; then, the lifting mechanism drives the die mechanism to move in the vertical direction, so that the bottom edges of the plurality of die side plates are in flat contact with the bottom surface of the support at the same time, and the lower end of the die cavity is blocked;

step S2, slurry pouring; injecting a slurry into the mold cavity through the upper end of the mold cavity;

step S3, demoulding the blank; after the slurry in the mold cavity is molded and the formed aerated concrete blank is expanded and hardened, firstly, the connecting rings are controlled to rotate reversely by the driving units, all the connecting rods are driven to synchronously rotate reversely by the connecting rings, so that the corresponding sliding rods are driven by the connecting rods to linearly slide relative to the mold frame in the direction close to the connecting rings, and then the corresponding mold side plates are driven by the sliding rods to move in the direction far from the axis of the connecting rings, so that the size of the mold cavity defined by the plurality of mold side plates is increased, and the mold side plates are separated from the contact with the aerated concrete blank; then, the lifting mechanism drives the die mechanism to move in the vertical direction, so that the die mechanism can move upwards relative to the aerated concrete blank, and the aerated concrete blank is demoulded;

and step S4, slitting, autoclaved curing and discharging the demolded aerated concrete blank to finally obtain the aerated concrete block.

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