Double-layer permeable brick pressing machine and brick pressing method

Abstract

The invention discloses a double-layer permeable brick pressing machine and a brick pressing method, comprising a frame and a vibration platform, a plurality of brick pressing cylinders and demoulding cylinders are installed on the frame, a mold is arranged on the vibration platform, the demoulding cylinder is connected with the mold through a door frame and a suspension rod, a plurality of guide rods are fixedly arranged on both sides of the frame, a guide sleeve is arranged outside each guide rod, each guide sleeve is fixedly connected with a brick pressing frame arranged in the frame, a plurality of pressing heads are arranged below the brick pressing frame, each pressing head corresponds to each mold cavity in the mold, the pressing head is connected with the brick pressing frame through a plurality of connecting rods, at least one groove is opened on the lower end surface of each pressing head, and a pressure strip is arranged in the groove. The invention is used to solve the problems that the existing brick press has a large amount of modification of the template for pressing permeable bricks with a groove at the bottom layer, the template is easily scrapped and the modification cost is high.

Description

Technical Field

[0001] The invention relates to a double-layer permeable brick pressing machine and a brick pressing method. Background Art

[0002] Color composite permeable bricks include a bottom layer and a surface layer. The existing brick press presses this type of permeable bricks twice. The method is to first put the bottom layer material into the mold and then press it for the first time, and then spread a layer of colored surface layer material on the bottom layer and press it for the second time to make a double-layer permeable brick. Now our factory has developed a permeable brick with a groove at the bottom, such as Figure 5 As shown in the figure, when this kind of permeable brick is laid on the pavement buffer layer (sand particle size 0.3~5mm), the sand in the permeable groove is relatively loose, and the water in the permeable brick will flow out from the groove first, so that the water-repellent capacity of the permeable brick is improved. Our factory uses Tianjin Xinshifeng QT9-18A2 block forming machine (also known as brick pressing machine). For the permeable brick with grooves at the bottom, a convex strip corresponding to the end face of the bottom layer of the permeable brick is set on the template, and then the permeable brick is pressed on the template. After the permeable brick is demoulded from the template, the position of the template convex strip is the groove of the bottom layer of the permeable brick. This treatment method The disadvantages are that, on the one hand, the permeable bricks shrink after drying, causing the convex strips to be tightly stuck in the grooves, making it difficult to demould the permeable bricks; on the other hand, the convex strips on the template need to be aligned with the cavities on the mold, but due to the manufacturing errors of the template and the convex strips, the mold will be directly pressed on the edge of the convex strips, making the template scrapped; on the other hand, some customers need permeable bricks without grooves on the bottom surface, so it is necessary to prepare another set of templates. The increase in the number of templates is not only inconvenient to manage, but also increases the cost of the enterprise. Therefore, the pressure head of the existing brick press is modified to enable it to overcome the above disadvantages. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a double-layer permeable brick press and a brick pressing method, which are used to solve the problems that the existing brick press has a large amount of template modification when pressing the bottom layer of grooved permeable bricks, the template is easily scrapped and the modification cost is high.

[0004] In order to solve the above problems, the technical solution to be solved by the present invention is:

[0005] The double-layer permeable brick press comprises a frame and a vibration platform. A plurality of brick pressing cylinders and demoulding cylinders are installed on the frame. A mold is arranged on the vibration platform. The demoulding cylinder is connected to the mold through a door frame and a hanger. A plurality of guide rods are fixedly arranged on both sides of the frame. A guide sleeve is arranged outside each guide rod. Each guide sleeve is fixedly connected to a brick pressing frame arranged in the frame. A plurality of pressing heads are arranged below the brick pressing frame. Each pressing head corresponds to each mold cavity in the mold. The pressing head is connected to the brick pressing frame through a plurality of connecting rods. At least one groove is opened on the lower end surface of each pressing head. A pressure strip is arranged in the groove. A plurality of push rods are connected to the upper end of the pressure strip. After each push rod passes through the pressing head, it is fixedly connected to a pressing plate arranged between the brick pressing frame and the pressing head. A plurality of loading cylinders are installed in the brick pressing frame above each pressing plate. The piston rod of each loading cylinder is fixedly connected to the pressing plate.

[0006] It also includes a pressure head purge mechanism, which includes multiple sleeves fixed on the brick pressing frame and an annular tube arranged outside the pressure head, the annular tube is connected to an air intake hose and multiple air blowing pipes, and a shaft rod is provided in each sleeve, the lower end of the shaft rod is fixedly connected to the annular tube, the upper end of the shaft rod is fixedly connected to the limit plate, a baffle plate and a spring are fixedly connected to the shaft rod, two ends of the spring are respectively against the baffle plate and the sleeve, one end of the air intake hose is connected to an air source, and an electromagnetic valve is installed on the air intake hose.

[0007] The blowing direction of each blowing pipe is toward the gap between each pressure head.

[0008] A method for pressing a double-layer permeable brick into a permeable brick comprises the following steps;

[0009] Step 1: After placing the template on the vibration platform, the demoulding cylinder presses the mold onto the template through the door frame and the hanger, and then the permeable brick fabric is laid into the mold;

[0010] Step 2: The brick pressing cylinder drives the pressing head downward to compact the material in the mold and then withdraw it from the mold. Then the solenoid valve opens, and compressed air is sprayed out from each blowing pipe to purge the pressing head. After S1 second, the solenoid valve closes;

[0011] Step 3: Place the permeable brick base material into the mold, and the loading cylinder exposes one end of each layering strip through the pressing plate and the ejector rod. The brick pressing cylinder drives the pressure head downward to compact the base material in the mold and then withdraw it from the mold;

[0012] Step 4: The demoulding cylinder drives the mold upward, the permeable brick is ejected from the mold, and the prepared permeable brick is transported to the designated location;

[0013] Step 5: The solenoid valve is opened, and compressed air is sprayed out from each blowing pipe to purge the pressure head and the pressure strip. After S2 seconds, the solenoid valve is closed, and the loading cylinder pulls the pressure strip back to the groove;

[0014] Step 6: After placing the template on the vibration platform again, repeat the above steps 1 to 5 to press the next group of permeable bricks.

[0015] The technical effect of the present invention is as follows: at the beginning, the pressure strip is retracted in the groove, so that the lower end surface of the pressure head is a plane, and the pressure head with a flat lower end surface is used to press the fabric first, and then the pressure strip is driven to protrude from the pressure head groove, and the pressure head is used to press the bottom material of the permeable brick, so that a groove is left on the lower end surface of the bottom layer of the permeable brick, and then only a single pressure head needs to be modified, without the need to modify the template in large quantities, thereby reducing the production cost of the enterprise; on the other hand, the groove is left on the bottom layer of the pressed permeable brick, which greatly improves the hydrophobicity of the permeable brick. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings:

[0017] Figure 1 It is a schematic diagram of the main structure of the present invention,

[0018] Figure 2 It is a side view structural schematic diagram of the present invention,

[0019] Figure 3 This is a bottom view of the pressure head of the present invention.

[0020] Figure 4 It is a schematic diagram of the local cross-sectional structure of the present invention,

[0021] Figure 5 This is a schematic diagram of the structure of the permeable brick prepared by the present invention.

[0022] In the figure: door frame 1, brick pressing frame 2, pressure head purge mechanism 3, guide rod 4, brick pressing cylinder 5, demoulding cylinder 6, frame 7, loading cylinder 8, pressing plate 9, connecting rod 10, pressure head 11, pressure strip 12, mold 13, vibration platform 14, suspension rod 15, push rod 16, limit plate 31, shaft rod 32, spring 33, baffle 34, sleeve 35, ring pipe 36, blowing pipe 37, air intake hose 38, solenoid valve 39, guide sleeve 41. DETAILED DESCRIPTION

[0023] like Figures 1 to 4As shown, the double-layer permeable brick press comprises a frame 7 and a vibration platform 14, a plurality of brick pressing cylinders 5 and demoulding cylinders 6 are installed on the frame 7, a mold 13 is arranged on the vibration platform 14, the demoulding cylinder 6 is connected to the mold 13 through a door frame 1 and a suspension rod 15, a plurality of guide rods 4 are fixedly arranged on both sides of the frame 7, a guide sleeve 41 is provided on the outer side of each guide rod 4, each guide sleeve 41 is fixedly connected to a brick pressing frame 2 arranged in the frame 7, the piston rod of each brick pressing cylinder 5 is hinged to the brick pressing frame 2, a plurality of pressing heads 11 are arranged below the brick pressing frame 2, each pressing head 11 corresponds to each mold cavity in the mold 13, and the pressing head 11 is connected to the brick pressing frame 2 through a plurality of connecting rods 10, At least one groove is provided on the lower end surface of each pressing head 11, and a pressure strip 12 is provided in the groove. A plurality of push rods 16 are connected to the upper end of the pressure strip 12. After each push rod 16 passes through the pressing head 11, it is fixedly connected to the pressing plate 9 provided between the brick pressing frame 2 and the pressing head 11. A plurality of loading cylinders 8 are installed in the brick pressing frame 2 above each pressing plate 9, and the piston rod of each loading cylinder 8 is fixedly connected to the pressing plate. When the piston rod of each loading cylinder 8 is retracted, the lower end surface of the pressure strip 12 is flush with the lower end surface of the pressing head 11. When the piston rod of the loading cylinder 8 is extended, the lower end of the pressure strip 12 is exposed from the groove, and the upper end is located in the groove.

[0024] It also includes a pressure head purge mechanism 3, which includes a plurality of shaft sleeves 35 fixed on the brick pressing frame 2 and an annular tube 36 arranged outside the pressure head 11, the annular tube 36 is connected to an air intake hose 38 and a plurality of air blowing pipes 37, and the blowing direction of each air blowing pipe 37 is toward the pressure head 11, and a shaft rod 32 is arranged in each shaft sleeve 35, the lower end of the shaft rod 32 is fixedly connected to the annular tube 36, and the upper end of the shaft rod 32 is fixedly connected to the limit plate 31, and a baffle 34 and a spring 33 are fixedly connected to the shaft rod 32, and the two ends of the spring 33 are respectively against the baffle 34 and the shaft sleeve 35, and one end of the air intake hose 38 is connected to the air source, and a solenoid valve is installed on the air intake hose 38. Since the pressure strip 12 needs to move up and down in the groove, the sand entering the groove will cause the pressure strip 12 to get stuck, so a purge mechanism is used to purge and clean the sand on the surface of the pressure head 11.

[0025] The blowing direction of each blowing pipe 37 is toward the gap between each pressure head 11.

[0026] like Figure 1 In the invention, a material distributor is provided on both sides of the mold 13, and the distributor is not shown in the figure. The two distributors are used to distribute the material to the surface layer and the bottom layer of the permeable brick respectively. The existing brick press works by firstly distributing the material to the bottom layer and then to the surface layer; while the patent is to firstly distribute the surface layer and then to the bottom layer; in addition, since the amount of the surface layer material is small, the pressing strip 12 needs to be retracted into the groove during pressing to keep the lower end surface of the pressing head 11 flat to prevent the surface layer from being pressed through. The specific pressing process is as follows:

[0027] Step 1: After placing the template on the vibration platform 14, the demoulding cylinder 6 presses the mold 13 onto the template through the door frame 1 and the suspension rod 15, and then the permeable brick fabric is spread into the mold 13, and then the vibration platform 14 vibrates the fabric.

[0028] Step 2: The brick pressing cylinder 5 drives the pressing head 11 downward. Figure 4 As shown, during the downward movement of the pressure head 11, the annular tube 36 first abuts against the mold 13, and then the pressure head 11 moves downward to press the fabric. After the fabric is compacted in the mold 13, the pressure head 11 moves upward to withdraw from the mold 13. After the pressure head 11 moves upward and is in place, the spring 33 pushes each blow pipe toward the pressure head 11 through the shaft 32, and then the solenoid valve is opened, and compressed air is sprayed out from each blow pipe 37. After blowing the pressure head 11 for 3 seconds, the solenoid valve is closed to blow away the remaining sand on the pressure head 11. This structural requirement of the pressure head blowing mechanism 3 can neither hinder the pressure head 11 from pressing bricks nor hinder the material distribution machine from distributing materials. Therefore, the annular tube 36 adopts the telescopic method of the shaft sleeve 35 and the shaft 32.

[0029] Step 3: The placing machine spreads the permeable brick base material into the mold 13, the vibration platform 14 vibrates the base material, the loading cylinder 8 exposes one end of each layering strip 12 through the pressing plate 9 and the push rod 16, and the brick pressing cylinder 5 drives the pressure head 11 downward to compact the base material in the mold 13 and then withdraw it from the mold 13;

[0030] Step 4: The demoulding cylinder 6 drives the mold 13 upward, the permeable brick is ejected from the mold 13, and the prepared permeable brick is transported to a designated location;

[0031] Step 5: The solenoid valve is opened, and compressed air is sprayed out from each blowing pipe 37 to purge the pressure head 11 and the pressure strip 12 for 4 seconds, then the solenoid valve is closed, and the loading cylinder 8 pulls the pressure strip 12 back into the groove;

[0032] Step 6: After placing the template on the vibration platform 14 again, repeat the first to fifth steps above to press the next group of permeable bricks.

Claims

1. A brick pressing method for double-layer permeable bricks, comprising a brick pressing machine, the brick pressing machine comprising a frame (7) and a vibration platform (14), a plurality of brick pressing cylinders (5) and demoulding cylinders (6) are mounted on the frame (7), a mold (13) is arranged on the vibration platform (14), the demoulding cylinder (6) is connected to the mold (13) through a door frame (1) and a suspension rod (15), a plurality of guide rods (4) are fixedly arranged on both sides of the frame (7), a guide sleeve (41) is arranged outside each guide rod (4), each guide sleeve (41) is fixedly connected to a brick pressing frame (2) arranged in the frame (7), a plurality of pressing heads (11) are arranged below the brick pressing frame (2), each pressing head (11) corresponds to each mold cavity in the mold (13), and the pressing head (11) is connected to the brick pressing frame (2) through a plurality of connecting rods (10), characterized in that: At least one groove is formed on the lower end surface of each pressing head (11), a pressure strip (12) is provided in the groove, a plurality of push rods (16) are connected to the upper end of the pressure strip (12), each push rod (16) passes through the pressing head (11) and is fixedly connected to a pressing plate (9) arranged between the brick pressing frame (2) and the pressing head (11), a plurality of loading cylinders (8) are installed in the brick pressing frame (2) above each pressing plate (9), and a piston rod of each loading cylinder (8) is fixedly connected to the pressing plate (9); The pressure head purge mechanism (3) further comprises a plurality of shaft sleeves (35) fixed on the brick pressing frame (2) and an annular tube (36) arranged outside the pressure head (11); an air intake hose (38) and a plurality of air blowing pipes (37) are connected to the annular tube (36); a shaft rod (32) is arranged in each shaft sleeve (35); the lower end of the shaft rod (32) is fixedly connected to the annular tube (36); the upper end of the shaft rod (32) is fixedly connected to the limit plate (31); a baffle plate (34) and a spring (33) are fixedly connected to the shaft rod (32); two ends of the spring (33) respectively abut against the baffle plate (34) and the shaft sleeve (35); one end of the air intake hose (38) is connected to an air source; and a solenoid valve (39) is installed on the air intake hose (38); The method comprises the following steps: Step 1: After placing the template on the vibration platform (14), the demoulding cylinder (6) presses the mold (13) onto the template through the door frame (1) and the suspension rod (15), and then the permeable brick fabric is laid into the mold (13); Step 2: The brick pressing cylinder (5) drives the pressing head (11) downward to compact the material in the mold (13) and then withdraw it from the mold (13). Then the solenoid valve (39) is opened, and compressed air is ejected from each blowing pipe (37) to purge the pressing head (11) for S1 seconds, and then the solenoid valve (39) is closed; Step 3: Place the permeable brick base material into the mold (13), and the loading cylinder (8) exposes one end of each layering strip (12) through the pressing plate (9) and the shaft (32). The brick pressing cylinder (5) drives the pressing head (11) downward to compact the base material in the mold (13) and then withdraw it from the mold (13); Step 4: the demoulding cylinder (6) drives the mold (13) upward, the permeable brick is ejected from the mold (13), and the prepared permeable brick is transported to a designated location; Step 5: The solenoid valve (39) is opened, and compressed air is ejected from each blowing pipe (37) to purge the pressure head (11) and the pressure strip (12) for S2 seconds, and then the solenoid valve (39) is closed, and the loading cylinder (8) pulls the pressure strip (12) back into the groove; Step 6: After placing the template on the vibration platform (14) again, repeat the above steps 1 to 5 to press the next group of permeable bricks.

2. The method for pressing double-layer permeable bricks according to claim 1, characterized in that: The blowing direction of each blowing pipe (37) is toward the gap between each pressure head (11).

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