A sand blasting device for PC brick production

Abstract

The utility model relates to the production technology field of imitating PC brick, concretely is a kind of sand blasting device for imitating PC brick production, including sand blasting box, two groups of filter barrels and storage barrels are arranged in box top, three shunt blocks are installed in sand blasting box inside top surface, and its bottom is installed sand blasting head, two shunt blocks are respectively communicated one filter barrel of each group;Support cylinder is installed on the top of filter barrel, and the pipeline of two filter barrels support cylinder of each group is interconnected, and last stage connection fan suction end;First rotating filter element is arranged in filter barrel and is driven by driving motor;The fan is connected to the top of storage barrel through connecting cylinder, and the bottom is connected with remaining shunt block, second rotating filter element is arranged in the inside and is driven by rotating motor;Sand blasting box is provided with door curtain gap and is installed in conveying table, and conveying table is equipped with conveying track and inclined bottom surface discharge groove. The switching mechanism of double sand supply source of storage barrel and filter barrel realizes material replenishment without shutdown;Two groups of filter barrels are connected in series with negative pressure recovery, and rotating filter element is used to cooperate with classification self-cleaning, to achieve instant separation cycle of sand and gravel, and significantly improve production continuity.

Description

Technical Field

[0001] This utility model relates to the field of PC brick production technology, specifically a sandblasting device for PC brick production. Background Technology

[0002] The sandblasting equipment for producing imitation PC bricks is an industrial device specifically designed for abrasive blasting treatment of the surface of polymer cement imitation stone bricks (PC bricks). Its core function is to precisely impact the surface of the brick with high-speed abrasive particles to form a uniform texture and rough feel that resembles natural stone. As imitation PC bricks are a substitute for natural stone, they must be processed on a large scale and efficiently through mechanical sandblasting to meet the strict requirements of the building decoration industry for texture consistency, surface anti-slip properties, and batch production capacity. Manual or general equipment cannot achieve the same level of precision and efficiency.

[0003] However, traditional equipment relies on a single storage tank for sand supply and has no backup sand supply source switching mechanism. When replenishing materials, the sandblasting operation must be completely stopped, causing frequent production line stoppages and efficiency losses. In addition, traditional technology requires the mixed materials in the sandblasting box to be returned to a dedicated filtration device for centralized separation, which cannot achieve real-time grading and direct use of recycled sand and gravel, resulting in delays in secondary processing. Utility Model Content

[0004] The purpose of this invention is to provide a sandblasting device for the production of imitation PC bricks, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A sandblasting device for producing imitation PC bricks includes two sets of filter barrels. Each set consists of two filter barrels, which are spaced apart and installed on one side of the top of a sandblasting box. Three diverter blocks are spaced apart on the top surface inside the sandblasting box. Several sandblasting heads are spaced apart on the bottom of each diverter block. Two diverter blocks are connected to one of the filter barrels in each set via pipes that pass through the sandblasting box. Support cylinders are bolted to the top of each filter barrel. The radially outer side of the support cylinder at the top of the filter barrel connected to the diverter block in each set is connected to the radially outer side of the other filter barrel in each set via a pipe. The radially outer side of the support cylinder at the top of the other filter barrel in each set is connected to the suction end of a fan via a pipe. A first rotating filter element is installed on the top surface inside each filter barrel via a sealed bearing.

[0006] Preferably, a drive motor is bolted to the top of each of the support cylinders, and the output ends of the drive motors are provided with output shafts, which penetrate into the filter barrel and are connected to the first rotating filter element.

[0007] Preferably, the filter barrel connected to the diverter block is radially outer and connected to the side of the sandblasting box opposite the fan via a pipe, and a first air inlet connector is fixedly installed at the top of the filter barrel adjacent to the support cylinder.

[0008] Preferably, there are three fans, which are installed at intervals on one side of the sandblasting box by bolts, and the remaining fan is connected to the connecting cylinder by a pipe. The connecting cylinder is installed on the top of the storage tank by bolts, and a second air inlet connector is fixedly installed on the top of the storage tank adjacent to the connecting cylinder.

[0009] Preferably, the storage tank is bolted to the top of the sandblasting box and adjacent to one of the filter tanks, and the bottom of the storage tank is connected to the remaining diverter block through a pipe passing through the sandblasting box. A feed connector is fixedly installed on the upper radial outer side of the storage tank.

[0010] Preferably, a rotating motor is bolted to the top of the connecting cylinder, and the output end of the rotating motor is provided with a rotating shaft that extends into the storage tank and connects to the second rotating filter element. The second rotating filter element is installed on the top surface inside the storage tank through a sealed bearing.

[0011] Preferably, the sandblasting box has notches on its front and rear sides and door curtains are fixedly installed thereon. The sandblasting box is installed on the top of the conveyor table by bolts. Two shaft conveyor rollers are installed on the inner side walls of the conveyor table by bearings. A conveyor belt is movably installed on the outer side of the shaft conveyor rollers.

[0012] Preferably, one of the shafted conveyor rollers passes through the conveyor table and is connected to the output end of the conveyor motor. The conveyor motor is installed on the outside of the conveyor table by bolts. A support frame is fixed at the bottom of the conveyor table. The bottom surface of the conveyor table is inclined and a discharge groove is provided on the inclined bottom surface.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This sandblasting device for producing imitation PC bricks injects compressed air into the filter barrel connected to the diverter block through the first air inlet when the storage tank is replenished. The recovered sand and gravel are then forced back into the diverter block for sand supply. At the same time, the storage tank is fed under negative pressure, which avoids interruption of the sandblasting operation.

[0014] This sandblasting device for producing imitation PC bricks uses the synergistic effect of two sets of series-connected filter barrels and a rotating filter element to simultaneously complete the graded recovery and self-cleaning filtration of sand and dust during the sandblasting operation. The separated sand is directly stored in the filter barrel connected to the diversion block for later use, realizing the immediate recycling of the recovered materials. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the conveyor table of this utility model; Figure 3 This is a schematic diagram of the sandblasting box of this utility model; Figure 4 This is a plan view of the filter bucket and storage bucket of this utility model.

[0016] In the diagram: 101, filter barrel; 102, sandblasting box; 103, flow divider; 104, sandblasting head; 105, support cylinder; 106, fan; 107, first rotating filter element; 108, drive motor; 109, output shaft; 110, first air inlet connector; 111, connecting cylinder; 112, storage tank; 113, second air inlet connector; 114, feed connector; 115, rotating motor; 116, rotating shaft; 117, second rotating filter element; 118, notch; 119, curtain; 120, conveyor table; 121, conveyor roller with shaft; 122, conveyor belt; 123, conveyor motor; 124, support frame; 125, discharge trough. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1-4 As shown, this utility model provides a technical solution: A sandblasting device for producing imitation PC bricks includes two sets of filter barrels 101. Each set consists of two filter barrels 101, which are spaced apart and installed on one side of the top of a sandblasting box 102. Three diversion blocks 103 are spaced apart on the top surface inside the sandblasting box 102. Several sandblasting heads 104 are spaced apart on the bottom of each diversion block 103. Two diversion blocks 103 are connected to one of the filter barrels 101 in each set via pipes through the sandblasting box 102. Support cylinders 105 are bolted to the top of each filter barrel 101. The radially outer side of the support cylinder 105 at the top of the filter barrel 101 connected to the diversion block 103 in each set is connected to the radially outer side of the other filter barrel 101 in each set via pipes. The radially outer side of the support cylinder 105 at the top of the other filter barrel 101 in each set is connected to the suction end of a fan 106 via pipes. A first rotating filter element 107 is installed on the top surface inside each filter barrel 101 via sealed bearings.

[0019] The above scheme allows for the parallel arrangement of dual filtration units using two sets of filter barrels. By setting two filter barrels in each set and installing them spaced apart on one side of the top of the sandblasting box, the structural load and space utilization can be balanced. Three diversion blocks installed on the top surface inside the sandblasting box ensure uniform sand distribution. Sandblasting heads installed at intervals on the bottom of the diversion blocks expand the spray coverage area. Two of the diversion blocks are connected to one filter barrel in each set to create a directional recovery path. Support cylinders are bolted to the top of the filter barrels to ensure sealing and assembly stability. The support cylinder pipes of the filter barrels connected to the diversion blocks in each set connect to another filter barrel in the same set, forming a series negative pressure system. The support cylinder of another filter barrel in the same set connects to the fan suction end to establish a negative pressure source. A first rotating filter element is installed on the sealed bearing on the top surface of the filter barrel to achieve rotary self-cleaning dynamic filtration.

[0020] In this embodiment, preferably, a drive motor 108 is bolted to the top of the support cylinder 105, and the output end of the drive motor 108 is provided with an output shaft 109, which passes through the filter barrel 101 and is connected to the first rotating filter element 107.

[0021] The above solution provides a rotational power source by mounting a drive motor on the top bolt of the support cylinder; the output shaft at the output end of the drive motor transmits torque; the output shaft passes through the inside of the filter barrel and connects to the first rotating filter element to directly drive the filter element to rotate, preventing filter pore blockage and enhancing filtration efficiency.

[0022] In this embodiment, preferably, the filter barrel 101 connected to the diverter block 103 is radially connected to the side of the sandblasting box 102 opposite to the fan 106 via pipes on its upper radially outer side, and the top of the filter barrel 101 is fixedly installed with a first air inlet connector 110 adjacent to the support cylinder 105.

[0023] The above scheme forms a sand and dust recovery channel by passing through the upper radial outer side of the filter barrel connected to the diverter block through the side wall of the sandblasting box; a first air inlet is fixedly installed at the top of the filter barrel adjacent to the support cylinder to provide a compressed air backflow inlet, thereby enabling rapid restart of the sandblasting operation.

[0024] In this embodiment, preferably, there are three fans 106, which are installed at intervals on one side of the sandblasting box 102 by bolts, and the remaining fan 106 is connected to the connecting cylinder 111 by a pipe. The connecting cylinder 111 is installed on the top of the storage tank 112 by bolts, and a second air inlet connector 113 is fixedly installed on the top of the storage tank 112 adjacent to the connecting cylinder 111.

[0025] The above scheme achieves multi-stage negative pressure distribution by installing three fans at intervals on one side of the sandblasting box; an independent suction unit is constructed by connecting the remaining fan to the connecting cylinder; airtight assembly is ensured by bolting the connecting cylinder to the top of the storage tank; and a high-pressure airflow injection interface is provided by fixing a second air inlet connector to the top of the storage tank.

[0026] In this embodiment, preferably, the storage tank 112 is bolted to the top of the sandblasting box 102 and adjacent to one of the filter tanks 101, and the bottom of the storage tank 112 is connected to the remaining diverter block 103 through a pipe passing through the sandblasting box 102. A feed connector 114 is fixedly installed on the upper radial outer side of the storage tank 112.

[0027] The above scheme optimizes the spatial layout by bolting the storage tank to the top of the sandblasting box and adjacent to the filter tank assembly; establishes the main channel for sand supply by connecting the distribution block through the bottom pipe of the storage tank through the sandblasting box; and achieves automatic suction of external sand and gravel by fixing the feed joint on the radially outer upper part of the storage tank.

[0028] In this embodiment, preferably, a rotating motor 115 is bolted to the top of the connecting cylinder 111. The output end of the rotating motor 115 is provided with a rotating shaft 116 that extends into the storage tank 112 and is connected to the second rotating filter element 117. The second rotating filter element 117 is installed on the top surface inside the storage tank 112 through a sealed bearing.

[0029] The above scheme provides driving force for the second-stage filter element by installing a rotating motor with bolts at the top of the connecting cylinder; a rotating shaft is set at the output end of the rotating motor to transmit rotational motion; the rotating shaft extends into the storage tank to connect the second rotating filter element to achieve dynamic filtration during the sand storage stage; and the second rotating filter element is sealed with a bearing to prevent leakage and maintain stable rotation.

[0030] In this embodiment, preferably, the sandblasting box 102 has notches 118 on its front and rear sides and a door curtain 119 is fixedly installed thereon. The sandblasting box 102 is bolted to the top of the conveyor table 120. Two shaft conveyor rollers 121 are installed on the inner side walls of the conveyor table 120 through bearings. A conveyor belt 122 is movably installed on the outer side of the shaft conveyor rollers 121.

[0031] The above scheme achieves workpiece passage and sand particle containment by opening notches on the front and rear sides of the sandblasting box and fixing the curtain; the sandblasting box is bolted to the top of the conveyor table to form an integrated module; two shafted conveyor rollers are installed on the bearing inside the conveyor table to provide a track support structure; and a conveyor track is movably installed on the outside of the shafted conveyor rollers to form a circulating workpiece platform.

[0032] In this embodiment, preferably, one of the shaft conveying rollers 121 passes through the conveying platform 120 and is connected to the output end of the conveying motor 123. The conveying motor 123 is installed on the outside of the conveying platform 120 by bolts. A support frame 124 is fixed at the bottom of the conveying platform 120. The bottom surface inside the conveying platform 120 is inclined, and a discharge groove 125 is provided on the inclined bottom surface.

[0033] The above scheme achieves power transmission by connecting the conveyor motor through the shaft of one of the conveyor rollers that runs through the conveyor platform; the conveyor motor is bolted to the outside of the conveyor platform for easy maintenance; the support frame at the bottom of the conveyor platform ensures overall stability; and the discharge trough on the inclined bottom surface inside the conveyor platform automatically collects residual sand and dust.

[0034] First, when the blower 106 connected to the connecting cylinder 111 at the top of the storage tank 112 starts suction, one of the blowers 106 operates first. Airflow passes from inside the storage tank 112 through the second rotating filter element 117 into the connecting cylinder 111, and is finally discharged through the blower 106. This suction process creates a negative pressure inside the storage tank 112, causing the feed connector 114 to continuously extract sand and gravel from the external storage device. At the same time, the rotating motor 115 installed at the top of the connecting cylinder 111 drives the rotating shaft 116, causing the second rotating filter element 117 to rotate. During this process, the rotating second rotating filter element 117 filters the incoming sand and gravel in real time. The centrifugal force generated effectively removes attached particles, fundamentally avoiding... This avoids clogging of the filter element pores. After the storage tank 112 is full of material, the sandblasting mode is switched. At this time, the second air inlet 113 connects to an external air compressor to inject high-pressure airflow. The airflow then carries sand and gravel through the bottom pipe of the storage tank 112, passes through the sandblasting box 102, enters the corresponding diversion block 103 for diversion, and finally is sprayed out at high speed from multiple sandblasting heads 104. At the same time, the imitation PC brick blanks are carried by the conveyor belt 122 through the curtain 119 area of ​​the front and rear gaps 118 of the sandblasting box 102, driven by the conveyor motor 123 and the shafted conveyor roller 121, receiving uniform impact from the sand and gravel to complete the surface treatment. The curtain 119 allows the brick blanks to pass through while effectively preventing sand and gravel from splashing out. It is worth noting that the sandblasting... The sanding process and material recovery are carried out simultaneously. At this time, two other blowers 106 operate continuously and synchronously, respectively sucking the support cylinders 105 at the top of the filter barrels 101 that are not connected to the diversion block 103 in each group of filter barrels 101. Since the support cylinders 105 at the top of the filter barrels 101 connected to the diversion block 103 in each group are connected to the filter barrels 101 that are not connected to the diversion block 103 through pipes, the blowers 106 create a synergistic negative pressure inside the two series-connected filter barrels 101 when they suck. This negative pressure will forcefully extract the sand and gravel scattered in the sandblasting box 102 and the dust generated by the impact on the surface of the brick blank, and guide them into the filter barrels 101 connected to the diversion block 103. Then, the drive motor 108 drives the filter barrel through the output shaft 109. The first rotating filter element 107 inside filter 101 rotates. It is particularly important to note that the pore size of the first rotating filter element 107 in filter 101 connected to the diversion block 103 is larger than the pore size of the first rotating filter element 107 in the other filter 101 in the same group. Based on this design, larger particles of sand and gravel are trapped in the filter 101 connected to the diversion block 103 by the rotating filter, while fine dust enters the second filter 101 with the airflow and is completely intercepted by the fine-pore first rotating filter element 107. Residual sand and gravel that are not sucked into the system and are not promptly suctioned fall naturally and are collected by the inclined bottom guide discharge channel 125 of the conveyor table 120. In summary, the core advantage of this structure is that it realizes the dynamic recycling of materials.When the sand in storage tank 112 is exhausted, the operator can immediately inject compressed air into the filter tank 101 connected to the diversion block 103 through the first air inlet connector 110. At this time, the airflow reverses and pushes the trapped sand back to the diversion block 103 through the original pipeline, continuing the sandblasting operation without interruption. This not only avoids downtime during the secondary feeding of storage tank 112, but also eliminates the need for secondary processing of the recovered sand by external separation equipment, significantly shortening the production cycle. The rotating filter element design ensures the self-cleaning capability of the filtration system during continuous operation, while the series negative pressure recovery mechanism of the two-stage filter tanks 101 significantly improves the sand utilization rate and ensures effective dust collection, keeping the sandblasting environment clean.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A sandblasting device for producing imitation PC bricks, comprising two sets of filter barrels (101), characterized in that: Each set of filter barrels (101) consists of two units, spaced apart and installed on one side of the top of the sandblasting box (102). Three flow dividers (103) are spaced apart on the top surface inside the sandblasting box (102). Several sandblasting heads (104) are spaced apart at the bottom of each flow divider (103). Two flow dividers (103) are connected to one of the filter barrels (101) in each set via pipes passing through the sandblasting box (102). The top of each filter barrel (101) is bolted with... The support cylinder (105) of each group is connected to the top of the filter barrel (101) connected to the diverter block (103) by a pipe on the radially outer side of the support cylinder (105) and the top of the filter barrel (101) of each group is connected to the upper radially outer side of another filter barrel (101) in each group by a pipe on the radially outer side of the support cylinder (105) of the top of another filter barrel (101) in each group by a pipe on the suction end of the fan (106). The top surface inside the filter barrel (101) is equipped with a first rotating filter element (107) by a sealed bearing.

2. A sandblasting device for producing imitation PC bricks according to claim 1, characterized in that: The top of the support cylinder (105) is respectively equipped with a drive motor (108) by bolts. The output end of the drive motor (108) is respectively provided with an output shaft (109), and the output shaft (109) passes through the inside of the filter barrel (101) and is respectively connected to the first rotating filter element (107).

3. A sandblasting device for producing imitation PC bricks according to claim 2, characterized in that: The filter barrel (101) connected to the diverter block (103) is radially connected to the side of the sandblasting box (102) opposite to the fan (106) via pipes on the upper radial side. The top of the filter barrel (101) and the support cylinder (105) are respectively fixedly installed with a first air inlet connector (110).

4. A sandblasting device for producing imitation PC bricks according to claim 3, characterized in that: The blowers (106) are three in number and are installed at intervals on one side of the sandblasting box (102) by bolts. The remaining blower (106) is connected to the connecting cylinder (111) by a pipe. The connecting cylinder (111) is installed on the top of the storage tank (112) by bolts. A second air inlet connector (113) is fixedly installed on the top of the storage tank (112) adjacent to the connecting cylinder (111).

5. A sandblasting device for producing imitation PC bricks according to claim 4, characterized in that: The storage tank (112) is bolted to the top of the sandblasting box (102) and adjacent to one of the filter tanks (101). The bottom of the storage tank (112) is connected to the remaining diverter block (103) through a pipe passing through the sandblasting box (102). A feed connector (114) is fixedly installed on the upper radial outer side of the storage tank (112).

6. A sandblasting device for producing imitation PC bricks according to claim 5, characterized in that: The top of the connecting cylinder (111) is bolted with a rotating motor (115). The output end of the rotating motor (115) is provided with a rotating shaft (116) that extends into the storage tank (112) and is connected to the second rotating filter element (117). The second rotating filter element (117) is installed on the top surface inside the storage tank (112) through a sealed bearing.

7. A sandblasting device for producing imitation PC bricks according to claim 6, characterized in that: The sandblasting box (102) has notches (118) on its front and rear sides and a door curtain (119) is fixedly installed thereon. The sandblasting box (102) is installed on the top of the conveyor table (120) by bolts. Two shaft conveyor rollers (121) are installed on the inner two side walls of the conveyor table (120) by bearings. A conveyor track (122) is movably installed on the outer side of the shaft conveyor rollers (121).

8. A sandblasting device for producing imitation PC bricks according to claim 7, characterized in that: One of the shaft conveyor rollers (121) passes through the conveyor table (120) and is connected to the output end of the conveyor motor (123). The conveyor motor (123) is installed on the outside of the conveyor table (120) by bolts. A support frame (124) is fixed at the bottom of the conveyor table (120). The bottom surface inside the conveyor table (120) is inclined, and a discharge groove (125) is provided on the inclined bottom surface.

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