CN111347528A

CN111347528A - Happy high-altitude core brick forming machine and production method

Info

Publication number: CN111347528A
Application number: CN201811560342.3A
Authority: CN
Inventors: 刘山; 科勒克夫·罗曼·彼得罗维奇; 萨夫琴科·亚历山大·格里戈里耶维奇; 费多罗夫·格奥尔基·德米耶里特维奇; 巴克伊·威亚切斯拉夫·亚历山大罗维奇
Original assignee: Xiamen Nansheng Machinery Equipment Co ltd
Current assignee: Xiamen Nansheng Machinery Equipment Co ltd
Priority date: 2018-12-20
Filing date: 2018-12-20
Publication date: 2020-06-30

Abstract

The utility model provides a happy high core brick make-up machine which characterized in that: the automatic feeding device comprises a base platform, a hopper, a feeding conveyor belt, an upper cross beam, a movable cross beam I, a movable cross beam II, a machine column, a main hydraulic cylinder, an upper punch, a lower punch, a profile groove, a hydraulic cylinder IV, a core tool, a metal sheet and a stacking platform; the invention uses a novel three-stage pressing method to greatly improve the stability of the high-altitude-gravity Gaokao block, so that the produced block has small height error, and meanwhile, under the objective condition that the error of the feeding amount in the block volume proportioning stage is higher (plus or minus (2/4)%) and the average mass of the block, the pressure of the final pressing stage can be adjusted and other quality parameters of the block, such as firmness, frost resistance and the like, can be ensured.

Description

Happy high-altitude core brick forming machine and production method

Technical Field

The invention relates to a forming machine and a production method for a Lexiaoshi core brick.

Background

Conventional press forming methods, such as vibration pressing, involve placing a single portion of the bulk material into a closed die, pressing the material using pressure from one or two punches, and then ejecting the pressed slug from the die for delivery to a hardening station. The disadvantage of this method is that the raw material to be fed into the die is dosed in a volume ratio. Such a dosage is subject to errors, at least + -2% less than the amount of material to be dispensed into the die, which errors are difficult to avoid even in the case of stable material properties and the use of effective volumetric proportioning tools. In addition to such errors, there are cases where the gap between the outer wall of the closed die and the punch leaks out of the material, resulting in errors. In a steady pressing process, errors in the amount of cloth can result in deviations in the briquette density. The above-mentioned errors seem to be insignificant, but for most bulk materials, in the usual pressure range, large, even impermissible, fluctuations in the briquetting parameters can occur. The density fluctuation causes a large (usually multiple) error in the pressure, and the error is increased along with the increasing of the pressure of the press. The fluctuations in density lead to fluctuations in the quality specifications (firmness, frost resistance, etc.) of the shaped blocks during the above-mentioned work operations. In order to ensure the stability of the block-making index and the minimum height error, the traditional press forming method can only be improved under the condition of high error of the volume ratio feeding method. One solution to the above problem is to minimize the error in volumetric dosing. To achieve this goal, it is necessary to use more efficient methods and volumetric dosing equipment, such as depositing the bulk material in advance in a die, compacting it with the pressure of a calibrating device and then cutting off the excess material by shoveling it [1 ]. Similar to this method, the instability of the bulk material, such as humidity, particle composition, etc., can be used to reduce the proportioning error. However, the reduced compounding error rate is not less than ± 2%.

Another solution is to stabilize the briquette density and forming pressure. The height of the formed block is changed by stabilizing the pressure value of a transmission device for controlling the punch in the hydraulic system, so that the density and the pressure are kept stable, and the error [2] of the volume proportioning feeding is indirectly reduced. If the press-forming process is completed before the set stable pressure value is reached, the density and the above-mentioned various tablet quality indicators are maintained, but fluctuations in tablet height cause errors in volumetric dosing.

In a more efficient manner, the present inventionThe method for reducing error is used for selected prototype machine-hollow brick forming machine of bulk material. This machine combines the two solutions mentioned above to improve the stability of the quality index of the shaped block. The method comprises the following steps: the raw materials in volume ratio are put into a closed pressing die, and a pressing die bottom plate is a lower punch; under the action of the motor, the core embedded in the raw materials moves from bottom to top and presses the redundant raw materials back to the proportioning device; compacting the raw material, namely compacting the raw material by a lower punch under the control of a hydraulic press, then punching the raw material into a raw material pile by an upper punch, and making the raw material pile and the lower punch move oppositely; drawing and punching in the block by using a core tool; the briquettes are pushed out of the machine and then grasped by a gripper and transported out for curing, stacking and shipping. This method used by the prototype is very efficient compared to similar other methods, because it combines the advantages of each of the two methods. This effect is achieved by two aspects: first, a core die is used in the packing stage opposite the lower punch; secondly, the pressure q is not less than the conventional pressure q when the set pressure q is reached and can ensure the quality indexes of the block_HThe pressing process is ended at the pressure of (3). However, the prototype machine hardly produces no deviation in height when producing Haogan tiles, particularly Haogan tiles having a height of more than 100 mm. The le Gao brick stacking has very strict requirements on the height, for example, the error of the height of a block with the height of 200mm cannot exceed +/-0, and 5M, namely +/-0, 25 percent of the height of the block, is ten times smaller than the minimum error of +/-2 percent required by the volume ratio feeding. If the LEGAO brick has larger error in height, the error is not different from production waste products because the brick cannot be used. In this case, an unresolved conflict arises: in order to improve the utilization rate of the Legao brick, the height error of the Legao brick is required to be ensured not to be higher than +/-0.5 mm during production, and a larger error value (+/-4 mm) must be allowed in the height in order to ensure the stability of the pressure of a machine and other quality indexes of block making, and the error value is equivalent to the minimum error value allowed by the volume proportioning feeding of bulk materials. The current practice for solving this conflict is to improve the quality of the raw materials, thereby greatly improving the quality of the briquettes. Therefore, even if the feeding error is the maximum negative value, the density produced is the lowestThe briquettes of (a) will also exhibit normal quality parameters. In addition, it is ensured that the selected raw materials and the mean pressure value have a minimal effect on the quality index. However, increasing the mass of the bulk material requires additional investment. If a material based on an astringent material (typically cement) is used, the production costs will be increased considerably, since cement is a relatively expensive material component and requires the use of a relatively good quality, and at the same time relatively expensive, filler. High quality, relatively costly clays are required if ceramics are used to produce leko bricks. It should be pointed out that even if the above method could be implemented (guaranteeing its specified dimensions in the case of minimum density and minimum pressure), it is not necessarily guaranteed to solve the above problem-guaranteeing minimum height errors. This is related to the extensional elasticity that is generated when the material is compacted. The pressure causes the high density block to elastically expand to a much greater extent than a similar low density block. Therefore, the briquettes having the same height after the pressing are pushed out may be highly different briquettes. There is also an important solution to the above-mentioned contradiction (i.e. the contradiction between the minimum height error required by the prototype and the higher error of the volume ratio) -a processing space is reserved during the molding and block making, and then milling is performed after hardening and before stacking. However, this method has the disadvantage that the milling cost is high, which is almost equivalent to the cost of forming high-porosity ledum blocks.

Disclosure of Invention

The invention aims to overcome the problems in the prior art and provide a hollow legao brick forming machine and a production method, wherein the formed brick has stable density and accurate block forming height.

In order to achieve the purpose, the technical scheme of the invention is as follows: the utility model provides a happy high core brick make-up machine which characterized in that: the automatic feeding device comprises a base platform, a hopper, a feeding conveyor belt, an upper cross beam, a movable cross beam I, a movable cross beam II, a machine column, a main hydraulic cylinder, an upper punch, a lower punch, a profile groove, a hydraulic cylinder IV, a core tool, a metal sheet and a stacking platform; the machine column is provided with four machine columns which are arranged on the base platform; the movable cross beam II, the movable cross beam I and the upper cross beam are sequentially arranged on the machine column from bottom to top; the upper cross beam is a fixed cross beam; the main hydraulic cylinder is arranged on the upper cross beam; the movable cross beam I is connected with a push rod of the main hydraulic cylinder and can move up and down along the machine column under the action of the main hydraulic cylinder; the lower end of the movable cross beam I is connected with a plurality of upper punches; the upper cross beam is also provided with a pair of hydraulic cylinders I and a pair of hydraulic cylinders II; a piston rod of the hydraulic cylinder II is connected with the movable cross beam I; the movable cross beam II is connected with a piston rod of the hydraulic cylinder I and can move up and down along the machine column under the action of the hydraulic cylinder I; a plurality of the groove are arranged and are arranged on the movable cross beam II; the lower punches are provided with a plurality of lower punches and are arranged on the base platform; a plurality of hydraulic cylinders IV are arranged and installed on the base platform; the core is arranged in the groove; the core is connected with the hydraulic cylinder IV by a connecting rod; the core moves up and down in the profiled groove under the action of the hydraulic cylinder IV; the metal sheet is arranged on one side of the movable cross beam II; the upper end face of the metal plate is flush with the upper end face of the movable cross beam II; a sliding frame is placed on the metal plate; the sliding frame is connected with a hydraulic cylinder III and can move along the surface of the metal plate under the action of the hydraulic cylinder III; the hydraulic cylinder III is fixedly arranged on the movable cross beam II; the hopper is arranged above the metal plate and used for containing raw materials; a feeding conveyor belt is arranged below the hopper and used for conveying raw materials into the sliding frame; and the stacking table is arranged on the other side of the movable cross beam II.

Further, a hand grip is further mounted on the front wall of the sliding frame.

Furthermore, the upper end face of the type groove, the upper end face of the stacking table, the upper end face of the movable cross beam II and the upper end face of the metal sheet are flush.

Further, the core is composed of an upper end head, a middle part and a lower end head; the middle part is a part with gradually changed section shape; the upper end head and the lower end head are parts with fixed cross section shapes; the cross-sectional dimension of the upper end is smaller than that of the lower end, and the difference between the cross-sectional dimension of the upper end and the cross-sectional dimension of the lower end is not smaller than 15%; the upper end head and the lower end head are in transition connection by using a middle part; a hole I is formed in the middle of the lower punch; the hole I is completely matched with the lower end head; a hole II is formed in the upper punch; the hole II is completely matched with the upper end head; the upper punch and the lower punch are completely matched with the groove; the height of the middle part is not more than 0.8 of the height of the Legao brick block.

Furthermore, the hydraulic cylinder IV, the core tool, the upper punch, the lower punch and the profiled groove are equal in number; each hydraulic cylinder IV acts independently.

A production method of a hollow Legao brick comprises the following steps:

1) putting proportioned and quantitative bulk raw materials into a groove with a core

2) The first stage of pressing the material inside the groove in the stroke of the upper punch 0.6-0.8

3) The groove, the lower punch and the upper punch are fixed, thrust is applied to enable the core to move upwards, and punching and second-stage pressing are carried out on the raw materials in the groove

4) The lower punch, the core tool and the upper punch move oppositely at the same time to carry out third-stage pressing on the raw materials in the groove until the block in the groove reaches the height required by the hollow happy high block

5) And pushing the manufactured hollow Haokao block out of the groove and into a stacking table to finish the operation.

In the step 3, the thrust for upward movement of the core tool is set so that the upward movement distance of the core tool is greater than zero, and meanwhile, the core tool cannot be contacted with the working surface of the upper punch after moving; the error of the proportioned quantitative bulk raw material in the step 1 is required to be less than 4%.

The invention has the beneficial effects that: (1) the invention uses a novel three-stage pressing method to greatly improve the stability of the high-altitude-gravity Haokao block, so that the produced block has small height error, and meanwhile, under the objective condition that the error of the feeding amount is higher (the average mass of the block is plus or minus (2/4)%) in the block volume proportioning stage, the pressure of the final pressing stage can be adjusted and other quality parameters of the block, such as firmness, frost resistance and the like, are ensured; (2) the method for producing the high-hollowness loose-grain raw material legao brick can greatly increase the size of the produced block, namely produce a product with a height much higher than that of the block produced by a prototype, so that the size of the compression-molded block can be close to a non-shrinkage cutting or grouting technology with higher use technology cost, and simultaneously, the height of the block can be increased by reducing errors on the height and the block characteristics, thereby reducing the labor input and the cost of building a wall by using corresponding equipment; (3) the forming machine can reduce the using amount of the convergence material, and simultaneously reduces the production cost by reducing the requirement on the raw materials for producing the Legao bricks; (4) the quality stability of the hollow Haokao block produced by the forming machine is good, and the consistency of the product is good; (5) the invention not only has the punch head which moves up and down relatively in the traditional forming machine, but also adds an additional pressing procedure that each block making core moves up independently, the cores have variable section areas which are reduced from bottom to top, and each core bears the same pressure; the additional pressing procedure can change the hollowness influenced by the error of proportioning raw materials in each pressing process; if the amount of the single material portion is less than the standard amount, the resistance of the core at the initial stage of the activity will be small. As the pressing process progresses, the resistance increases, even at the end of the stroke, to the same extent as the pressure. The smaller the amount of the raw material per unit, the larger the stroke. The core has an upward stroke to increase the hollowness and reduce the volume of the pressed raw material. The density of the raw material increases before the end of the pressing stage. If the amount of material in a single portion is greater than the nominal amount, the resistance experienced by the core from the material is initially equivalent to the pressure. At this pressure, the stroke of the wick will be shortened (up to zero). The larger the amount of the raw material per unit, the smaller the stroke. When the stroke of upward displacement of the core is short, the hollowness and the volume of the raw material are approximated to the original state. Thus, a slightly or completely non-increasing material density before the end of the pressing stage will be closer to the case of a smaller amount of material per portion and a larger core stroke. Thus, as long as the pressure is correctly adjusted, the density of the pressed material before the final pressing stage is adjusted "automatically", and further, the flattening of the density before the final pressing stage ensures that approximately the same density, pressure and quality parameters of the Happy block are obtained at the end of the stage.

Drawings

Fig. 1 is a perspective view of a machine for forming high hollow gobos from bulk stock, fig. 2 and 3 are views of a wall of a block of high hollow gobos produced using the method and machine of the present invention, fig. 4 is a view of a wall of a block of high hollow gobos produced using the method and machine of the present invention, fig. 5 is a plan view of a machine for forming hollow gobos of the present invention, fig. 6 is a sectional view taken along the line a-a of fig. 5 showing the difference in the amount of filler as each core moves during forming, fig. 7 is a sectional view taken along the line B-B of fig. 6, fig. 8 shows the position of each part of the machine during the different forming stages, fig. 8-1 shows the filling stage when stock is fed into the initial die in accordance with an adjustable filler thickness dimension n з, fig. 8-2 shows the displacement of the groove with the upper punch and core to the initial position after the groove has been displaced to the initial position of the upper punch and core to the initial position, fig. 8-2 shows the displacement of the groove with the upper punch and core to the initial position of the upper punch and the lower punch after the displacement of the upper punch from the upper punch holder 34 to the lowest punch position of the upper punch, the upper punch and lower punch, the upper punch is set to the upper punch displacement distance of the lower punch, the upper punch holder, the upper punch is set to the upper punch holder, the upper punch holder, the upper punch is set to the lower punch displacement distance of the upper punch, the lower punch, the upper punch, the lower punch, the upper punch is set to the upper punch, the lower punch, the upper punch is set to the lower punch, the upper punch, the lower punch is set to the.

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings.

As shown in the figure, the high-altitude core brick forming machine comprises a base platform 1, a hopper 16, a feeding conveyor belt 17, an upper cross beam 3, a movable cross beam I5, a movable cross beam II 4, a machine column 2, a main hydraulic cylinder 8, an upper punch 10, a lower punch 11, a profiled groove 9, a hydraulic cylinder IV 20, a core 18, a metal sheet 13 and a stacking platform 25; the four machine columns 2 are arranged on the base platform 1; the movable cross beam II 4, the movable cross beam I5 and the upper cross beam 3 are sequentially arranged on the machine column 2 from bottom to top; the upper cross beam 3 is a fixed cross beam; the main hydraulic cylinder 8 is arranged on the upper cross beam 3; the movable cross beam I5 is connected with a push rod of the main hydraulic cylinder 8 and can move up and down along the machine column 2 under the action of the main hydraulic cylinder 8; the lower end of the movable cross beam I5 is connected with a plurality of upper punches 10; the upper cross beam 3 is also provided with a pair of hydraulic cylinders I6 and a pair of hydraulic cylinders II 7; a piston rod of the hydraulic cylinder II 7 is connected with the movable cross beam I5; the movable cross beam II 4 is connected with a piston rod of the hydraulic cylinder I6 and can move up and down along the machine column 2 under the action of the hydraulic cylinder I6; a plurality of the groove 9 are arranged and are arranged on the movable cross beam II 4; the lower punches 11 are provided with a plurality of lower punches and are arranged on the base platform 1; a plurality of hydraulic cylinders IV 20 are arranged and mounted on the base platform 1; the core 18 is arranged in the groove 9; the core 18 is connected with the hydraulic cylinder IV 20 by a connecting rod 19; the core 18 moves up and down in the profiled groove 9 under the action of the hydraulic cylinder IV 20; the metal sheet 13 is arranged on one side of the movable cross beam II 4; the upper end face of the metal plate 13 is flush with the upper end face of the movable cross beam II 4; a carriage 14 is placed on the metal plate 13; the carriage 14 is connected with a hydraulic cylinder III 15 and can move along the surface of the metal plate 13 under the action of the hydraulic cylinder III 15; the hydraulic cylinder III 15 is fixedly arranged on the movable cross beam II 4; the hopper 16 is arranged above the metal plate 13 and is used for containing raw materials; a feeding conveyor belt 17 is arranged below the hopper 16 and used for conveying raw materials into the sliding frame 14; the stacking table 25 is arranged on the other side of the movable cross beam II 4; a hand grip 24 is also mounted on the front wall of the carriage 14; the upper end face of the shaped groove 49, the upper end face of the stacking table 25, the upper end face of the movable cross beam II 4 and the upper end face of the metal sheet 13 are flush.

The core 18 consists of an upper end 21, a middle part 23 and a lower end 22; the intermediate portion 23 is a portion whose sectional shape gradually changes; the upper end head 21 and the lower end head 22 are parts with fixed cross-sectional shapes; the cross-sectional dimension of the upper end head 21 is smaller than that of the lower end head 22 by not less than 15%; the upper end head 21 and the lower end head 22 are in transition connection by using a middle part 23; the middle of the lower punch 11 is provided with a hole I26; the hole I26 is completely matched with the lower end head 22; the upper punch 10 is provided with a hole II 27; the hole II 27 is completely matched with the upper end head 21; the upper punch 10 and the lower punch 11 are completely matched with the groove 9; the height of the middle part 23 is not more than 0.8 of the height of the Legao brick block; the hydraulic cylinders IV 20, the core 18, the upper punches 10, the lower punches 11 and the profiled grooves 9 are equal in number; each hydraulic cylinder iv 20 acts independently.

The process and production method of the invention are characterized in that, at the beginning, the movable beam I and the movable upper punch 10 are positioned at the highest position shown in figure 8-1 under the action of the hydraulic cylinder II, the movable beam II is adjusted to the height capable of obtaining the thickness H з (figure 8-1) under the action of the piston rod of the hydraulic cylinder I and the shaping groove 9, at the same time, the core 18 (figure 8-1) in the shaping groove 9 is adjusted to the same position under the action of the connecting rod 19 of the hydraulic cylinder 20, so that the surface of the core coincides with the upper surface of the shaping groove 9 (it is required to explain that the thickness H з (figure 8-1) of the filling material set by the machine in the adjusting process is matched with the average quality m of the raw material in the closed die and the pressure in the corresponding pressing completion stage, so as to stabilize the quality parameters of the high-grade blocks), the carriage 14 (figure 7) is positioned at the rightmost position under the hopper 16 under the action of the connecting rod of the hydraulic cylinder III, the upper feeding conveyor 17 is opened, so that the upper conveyor belt 17 moves to the required time to control the feeding of the moving of the movable upper punch III, the movable ram III moves to the lowest position of the hydraulic cylinder II, the upper punch 14, the lower punch 14, the upper punch 14, the lower punch in the feeding of the hydraulic cylinder 15, the hydraulic cylinder II, the feeding of the hydraulic cylinder II, the hydraulic cylinder II, the hydraulic cylinder 14, the feeding of the hydraulic cylinder 14, the hydraulic cylinder 14 is controlled by the hydraulic cylinder, the feeding of the hydraulic,lowering the upper punch into the die of the profile groove 9 to a position at which the height of the upper punch 18 is just sufficient to prevent the bulk material from overflowing the die, moving the profile groove 9, the core 18 and the upper punch 10 together downward with the core 18 controlled by the hydraulic cylinder i 6, the plane above the core 18 coinciding with the upper surface of the profile groove 9, the movable upper punch 10 and the core 18 controlled by the hydraulic cylinder ii 7, the minimum filling thickness being з round profile, starting the first stage of pressing, lowering the movable upper punch 10 (fig. 6) into the profile groove 9 under the control of the hydraulic cylinder ii 7 to press the material over a total stroke L ∑ of 0,6-0,8 (fig. 8-3) of 0,6-0,8, 23, which is set during the machine adjustment stage, then moving the core 18 upward with the hydraulic cylinder 20, moving the upper punch 18 and the middle punch 23 to the left as the upper punch 23, moving the core 18 upward with a certain distance, moving the core 18 upward, moving the core 18 up a certain distance in the previous stage of pressing, moving the core 18 upward, moving the core 18 and the second stage of pressing, wherein the core 18 moves a certain distance upward different core density, and the core 18 moves upward as the distance from the previous point of the first stage of the previous moving the first stage of pressing, which is different core 18 and the previous starting the previous stage of pressing, which is different core 18 moves, and the previous stage of pressing, wherein the previous stage of pressing has moved upward with a certain core 18 has moved upward, and the previous stage of pressing has moved upward, and the_UThe material in the groove 9 can be pressed into a block with a certain density, at this time, the force provided by the hydraulic cylinder IV 20 to the core 18 can not drive the core to move upwards to press the block, so that the core 18 on the left moves upwards H_UThe distance is stopped, so that the second step of pressing of the raw materials in the left side groove 9 is finished, and the pressed raw materials are pressed to obtain a block with a certain density; on the right side, because the raw material in the right groove 9 is small before the second step of pressing, the block density is small, the pressing force of the upward movement of the core 18 is constant, and the corresponding direction of the core 18 is opposite to that of the second step of pressingUpper moving distance H_UThen, the density of the briquettes in the groove 9 is smaller than that of the briquettes in the left groove 9, the frictional resistance of the briquettes to the downward direction of the core 18 is smaller than the upward pressure of the core 18, and the core 18 controlled by the group of hydraulic cylinders iv 20 on the right is not enough to stop, so that the core 18 on the right moves upward, the volume of the raw material in the groove 9 continues to be compressed, when the core 18 moves upward for a distance C, the volume of the raw material in the groove 9 is compressed to a certain degree, the briquettes with the same density as that on the left are obtained, the core 18 stops moving, the second step of pressing of the raw material in the right groove 9 is completed, and thus the density of the briquettes in each groove is the same when the second step of pressing is completed; the block obtained by each groove 9 has the same density, shape and size, performance and the like except that the hollow degree of the inside is different; a third stage of pressing-down uni-directional pressing is then started: (it is stated that the pressing starts under the effect of a relative movement in the vertical direction, one side being the profile groove 9 with the pad 12, the core 18 and the upper punch 10, the other side being the lower punch 11; the relative movement starts with the adjustment of the relative position between the upper punch 10, the profile groove 9 with the pad 12 and the fixed lower punch 11, which is adjusted at the end of the first pressing phase and is the same for all the formed pads; the only difference is the position of the portion 23 of the core 18 with a narrowed cross-section from bottom to top, which is adjusted at the second pressing phase), the simultaneous relative movement of the movable upper punch 10 controlled by the main hydraulic cylinder 8 and the hydraulic cylinder II 7, the profile groove 9 controlled by the hydraulic cylinder I6 and the core 18 presses the material in each profile groove 9, when the height of the pad in the profile groove 9 reaches the set height of the leko-high pad_иStopping, thus finishing the pressing in the third stage to obtain the required new formed Legao blocks 12, wherein the density of the raw materials of the blocks 12 is approximately same, the height is same, and the only difference is the hollowness of the blocks, so that the quality parameters of the blocks, such as firmness, frost resistance and the like, are stable; after pressing, the upper movable punch 10 controlled by the hydraulic cylinder II 7 and the profile groove 9 controlled by the hydraulic cylinder I6 displace upwards in the same direction, so that the newly formed Legao block 12 (figure 6) protrudes downwardsThe surface is separated from the lower surface of the fixed lower punch 11, the core 18 is then moved downwardly away from the newly formed block 12 and lowered to the lowermost position (where any core 18 is not in contact with any newly formed block 12) by the hydraulic cylinder iv 20, the upper punch 10 is then moved upwardly to the uppermost initial position by the hydraulic cylinder ii 7, the working surface of the upper punch 10 is moved away from the convex upper surface of the newly formed block 12, and in synchronism with the raising of the movable upper punch 10, the profile groove 9 is lowered by the hydraulic cylinder i 6 (fig. 6), the newly formed block 12 is ejected from the profile groove 9 by the fixed lower punch 11, and when the profile groove 9 reaches the lowermost position, the finger 24 grips the upper, larger part of the block 12, and the stronger part of the block 12, at the moment, the hydraulic cylinder I6 (figure 6) acts to drive the movable beam II 4 to move upwards, and in the moving process, the sliding frame 14 where the profiled groove 9 (figure 7), the gripper 24 for clamping the newly formed Haokao block 12 are located and the platform 25 for stacking the blocks before conveying and hardening are lifted together to ensure the thickness of the basic filler_зIn the height of (a). Meanwhile, under the action of the hydraulic cylinder IV 20, all the cores 18 are lifted to the height which can enable the plane above the cores to be matched with the plane above the profiled groove 9, then under the action of the hydraulic cylinder III 15, the sliding frame 14 drives the gripper 24 which grips the newly formed Happy Gao block 12 to move leftwards, when the newly formed Happy Gao block 12 reaches the stacking table 25, the gripper 24 releases to place the newly formed Happy Gao block 12 on the stacking table 25, and then the sliding frame 14 carries the gripper 24 to move from left to right to reach the initial position at the rightmost end to carry out the next round of operation. It should be noted that the term "molding" as used herein refers to the formation of a cavity between a core and a mold.

While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a happy high core brick make-up machine which characterized in that: the automatic feeding device comprises a base platform, a hopper, a feeding conveyor belt, an upper cross beam, a movable cross beam I, a movable cross beam II, a machine column, a main hydraulic cylinder, an upper punch, a lower punch, a profile groove, a hydraulic cylinder IV, a core tool, a metal sheet and a stacking platform; the machine column is provided with four machine columns which are arranged on the base platform; the movable cross beam II, the movable cross beam I and the upper cross beam are sequentially arranged on the machine column from bottom to top; the upper cross beam is a fixed cross beam; the main hydraulic cylinder is arranged on the upper cross beam; the movable cross beam I is connected with a push rod of the main hydraulic cylinder and can move up and down along the machine column under the action of the main hydraulic cylinder; the lower end of the movable cross beam I is connected with a plurality of upper punches; the upper cross beam is also provided with a pair of hydraulic cylinders I and a pair of hydraulic cylinders II; a piston rod of the hydraulic cylinder II is connected with the movable cross beam I; the movable cross beam II is connected with a piston rod of the hydraulic cylinder I and can move up and down along the machine column under the action of the hydraulic cylinder I; a plurality of the groove are arranged and are arranged on the movable cross beam II; the lower punches are provided with a plurality of lower punches and are arranged on the base platform; a plurality of hydraulic cylinders IV are arranged and installed on the base platform; the core is arranged in the groove; the core is connected with the hydraulic cylinder IV by a connecting rod; the core moves up and down in the profiled groove under the action of the hydraulic cylinder IV; the metal sheet is arranged on one side of the movable cross beam II; the upper end face of the metal plate is flush with the upper end face of the movable cross beam II; a sliding frame is placed on the metal plate; the sliding frame is connected with a hydraulic cylinder III and can move along the surface of the metal plate under the action of the hydraulic cylinder III; the hydraulic cylinder III is fixedly arranged on the movable cross beam II; the hopper is arranged above the metal plate and used for containing raw materials; a feeding conveyor belt is arranged below the hopper and used for conveying raw materials into the sliding frame; and the stacking table is arranged on the other side of the movable cross beam II.

2. The forming machine for high-altitude building bricks according to claim 1, characterized in that: and the front wall of the sliding frame is also provided with a gripper.

3. The forming machine for high-altitude building bricks according to claim 1, characterized in that: the upper end face of the groove, the upper end face of the stacking table, the upper end face of the movable cross beam II and the upper end face of the metal sheet are parallel and level.

4. The forming machine for high-altitude building bricks according to claim 1, characterized in that: the core consists of an upper end head, a middle part and a lower end head; the middle part is a part with gradually changed section shape; the upper end head and the lower end head are parts with fixed cross section shapes; the cross-sectional dimension of the upper end is smaller than that of the lower end, and the difference between the cross-sectional dimension of the upper end and the cross-sectional dimension of the lower end is not smaller than 15%; the upper end head and the lower end head are in transition connection by using a middle part; a hole I is formed in the middle of the lower punch; the hole I is completely matched with the lower end head; a hole II is formed in the upper punch; the hole II is completely matched with the upper end head; the upper punch and the lower punch are completely matched with the groove; the height of the middle part is not more than 0.8 of the height of the Legao brick block.

5. The forming machine for high-altitude building bricks according to claim 1, characterized in that: the number of the hydraulic cylinders IV, the core tools, the upper punches, the lower punches and the profiled grooves is equal; each hydraulic cylinder IV acts independently.

6. A production method of a hollow Legao brick comprises the following steps:

7. The method for producing a hollow legao brick according to claim 6, wherein: in the step 3, the thrust for upward movement of the core tool is set so that the upward movement distance of the core tool is greater than zero, and meanwhile, the core tool cannot be contacted with the working surface of the upper punch after moving; the error of the proportioned quantitative bulk raw material in the step 1 is required to be less than 4%.