Wet sand blasting machine

Abstract

The utility model discloses a wet type sand blasting machine which comprises a machine frame, a sand blasting cabin, a sand sweeping cabin, a sand grabbing assembly, a sand grabbing stand column, a material channel, a stirring barrel and a control system, the sand blasting cabin and the sand sweeping cabin are respectively and fixedly arranged on the machine frame, the sand sweeping cabin is located below the sand blasting cabin, the sand sweeping cabin is communicated with the sand blasting cabin, and the sand grabbing assembly is arranged on the sand grabbing stand column. The sand grabbing stand column is fixedly installed on the machine frame, the sand grabbing assembly is movably installed on the sand grabbing stand column and can move into the sand sweeping bin, the stirring barrel is fixedly installed on the machine frame and communicated with a material channel, a sand suction pipe is arranged in the stirring barrel, a spray gun is arranged in the sand blasting bin, and the sand sweeping bin is communicated with the material channel. The sand suction pipe is communicated with the spray gun; the control system is used for controlling the weight of the slurry in the stirring barrel, and a signal is used for controlling the lifting speed of the sand grabbing assembly. The utility model provides the wet type sand blasting machine which is automatic, good in sand blasting effect, high in consistency and controllable in sand and water quantification.

Description

Technical Field

[0001] This utility model relates to a wet sandblasting machine. Background Technology

[0002] Dry sandblasting generates a lot of dust, which is detrimental to the environment and harmful to health. Compared with dry sandblasting, wet sandblasting machines commonly use a sand-water pump to draw a mixture of sand and water under certain pressure into the spray gun, and then spray it onto the work surface, thereby achieving a surface cleaning, rust removal or matte finish.

[0003] However, most commonly used sandblasting machines are currently operated manually, which presents problems such as varying operator skill levels, inconsistent sandblasting times, and uncontrollable and non-quantitative sand-to-water ratios. Furthermore, since the sandblasting effect is directly related to the amount of sand and water supplied, over-reliance on manual experience easily leads to low product consistency and inefficiency, failing to meet the requirements of mass production. Therefore, there is a need to design a wet sandblasting machine that can achieve automated sandblasting.

[0004] Due to the inherent characteristics of steel shot and water media, irreversible damage to the pump blades is inevitable during use, affecting the service life of the equipment. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model provides a wet sandblasting machine. Through the rational design of the sand lifting and replenishing module and the overall structure, a wet sandblasting machine with advantages such as no dust, high efficiency, and low cost is obtained. It can remove surface deposits such as oil, grease, carbonized dirt, and rust from the workpiece surface in one pass.

[0006] To achieve the above objectives, the present invention provides a wet sandblasting machine, comprising a frame, a sandblasting chamber, a sand return chamber, a sand-grabbing assembly, a sand-grabbing column, a material channel, a mixing tank, and a control system. The control system is electrically connected to the sand-grabbing assembly. The sandblasting chamber and the sand return chamber are fixedly mounted on the frame, with the sand return chamber located below and connected to the sandblasting chamber. The sand-grabbing column is fixedly mounted on the frame, and the sand-grabbing assembly is movably mounted on the sand-grabbing column, allowing it to move into the sand return chamber. The material channel is movably mounted on the frame, and the mixing tank is fixedly mounted on the frame, located between the sand-grabbing column and the mixing tank. A suction pipe is provided in the mixing tank, and a spray gun is provided in the sandblasting chamber, with the suction pipe and the spray gun connected. The control system monitors the weight of the slurry inside the mixing tank in real time and uses this weight signal to control the lifting speed of the sand-grabbing assembly.

[0007] In one embodiment of this utility model, the sand-grabbing assembly includes a drive motor, a lifting mechanism, a grab bucket opening and closing mechanism, and a telescopic cylinder. The drive motor, grab bucket opening and closing mechanism, and telescopic cylinder are all mounted and fixed on the lifting mechanism. The lifting mechanism is movably connected to the sand-grabbing column, and the lifting mechanism is driven by the drive motor. The grab bucket opening and closing mechanism is fixedly connected to the telescopic cylinder. The drive motor drives the lifting mechanism to move freely up and down, while the drive motor housing adjusts the lifting speed of the lifting mechanism. The telescopic cylinder piston rod extends and retracts to open and close the grab bucket opening and closing mechanism, thus realizing the entire sand-grabbing function.

[0008] In one embodiment of this utility model, the material channel is a sheet metal assembly with a hinge structure in the middle, which allows the left and right ends of the material channel to fold. One end of the material channel is fixed to the frame and extends to the inlet of the mixing tank, while the other end of the material channel is fixedly connected to the sand-grabbing assembly. The other end of the material channel is connected to the sand-grabbing assembly via a chain. As the sand-grabbing assembly moves up and down, the chain causes one end of the material channel to fold around the hinge structure, thereby achieving lateral transport of sand and water from the sand-grabbing assembly to the mixing tank.

[0009] In one embodiment of this utility model, the material channel is inclined above the frame. The entire material channel has a certain inclination angle to facilitate the flow of sand and water into the mixing tank by gravity.

[0010] In one embodiment of the present invention, the bottom of the mixing tank is provided with a drain outlet.

[0011] In one embodiment of this utility model, the sand return chamber has a funnel-shaped structure with a large opening and a small bottom.

[0012] In one embodiment of this utility model, there are several sand suction pipes, one end of which extends into the inside of the mixing tank, and the other end of which is connected to the spray gun.

[0013] In one embodiment of the present invention, there are two sand-grabbing columns, which are symmetrically erected above the sand return chamber, and the sand-grabbing assembly is installed between the two sand-grabbing columns.

[0014] This technical solution has the following beneficial effects:

[0015] This invention provides an automated wet sandblasting machine with excellent sandblasting effect, high consistency, and controllable sand-water quantification. Specifically, it uses a mixing tank to provide a sand-water mixture, and monitors the weight in the tank to control the sand-water concentration. A sand return chamber is used to recover and reuse the sand-water sprayed from the gun onto the wire. In addition, an electrically driven sand-grabbing assembly transports the sand-water mixture from the return chamber to the mixing tank. Using sand-water weight closed-loop control, the control signal is sent to the sand-grabbing assembly to automatically adjust the sand lifting rate. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the present invention;

[0017] Figure 2 This is a rear view of an embodiment of the present invention;

[0018] Figure 3 This is a side view of an embodiment of the present invention;

[0019] Figure 4 This is a three-dimensional structural schematic diagram of the sand-grabbing component in one embodiment of the present invention;

[0020] Figure 5 This is a three-dimensional structural diagram of the material channel in one embodiment of the present invention.

[0021] Attached diagram labels: 1-Sand return chamber; 2-Sandblasting chamber; 3-Sand grabbing column; 4-Sand grabbing assembly; 5-Mixing tank; 6-Sand suction pipe; 7-Material channel; 8-Drain outlet; 9-Frame; 10-Drive motor; 11-Lifting mechanism; 12-Grab bucket opening and closing mechanism; 13-Telescopic cylinder. Detailed Implementation

[0022] The following describes the embodiments and appendices. Figures 1 to 5 The present invention will be further described below.

[0023] A type of wet sandblasting machine, such as Figure 1-3 As shown, the system includes a frame 9, a sandblasting chamber 2, a sand return chamber 1, a sand-grabbing assembly 4, a sand-grabbing column 3, a material channel 7, a mixing tank 5, and a control system. The sandblasting chamber and the sand return chamber are fixedly mounted on the frame 9, with the sand return chamber located below the sandblasting chamber and connected to it. The sandblasting chamber contains spray guns. In this embodiment, the sand return chamber has a funnel-shaped structure with a large opening and a small bottom. The sandblasting chamber 2 is equipped with multiple sets of spray gun kits. During normal production, the wire enters the sandblasting chamber 2 from right to left and is sandblasted by the spray guns to meet the process requirements.

[0024] The sand-grabbing columns 3 are fixedly installed on the frame. There are two sand-grabbing columns 3, symmetrically positioned above the sand return chamber 1. The sand-grabbing assembly is movably installed between the two sand-grabbing columns and can move into the sand return chamber. The sand-grabbing assembly 4 is electrically controlled to move to a set position inside the sand return chamber 1 to grab sand. Afterward, it rises to the set position, and the material channel 7 opens accordingly. The grabbed sand-water mixture is released onto the material channel 7 by pneumatic control and flows by gravity into the mixing tank 5 to achieve the sand-water sanding action. The sand-water mixture is sucked from the mixing tank 5 to the spray gun through the sand suction pipe. After being sprayed out by the spray gun, it flows back to the sand return chamber 1 through the four walls and bottom plate of the sand blasting chamber 2 for slurry collection. Then, it is further grabbed and sanded by the sand-grabbing assembly 4, completing the entire wet sand blasting machine operation process.

[0025] like Figure 4 As shown, the sand-grabbing assembly 4 includes a drive motor 10, a lifting mechanism 11, a grab bucket opening and closing mechanism 12, and a telescopic cylinder 13. The drive motor 10, the grab bucket opening and closing mechanism 12, and the telescopic cylinder 13 are all mounted and fixed on the lifting mechanism 11. The drive motor 10 drives the lifting mechanism 11 to move freely up and down, and the lifting speed can be freely adjusted. The grab bucket opening and closing mechanism 12 is fixedly connected to the telescopic cylinder 13. The opening and closing action of the grab bucket opening and closing mechanism 12 is realized by the extension and retraction of the piston rod of the telescopic cylinder 13, thereby realizing the entire sand-grabbing function.

[0026] like Figure 5 As shown, the material channel 7 is a sheet metal assembly with a hinge structure in the middle, which allows the left and right ends of the material channel to fold. One end of the material channel 7 is fixed to the frame, at the same elevation as the feed inlet of the mixing tank 5. The other end is connected to the sand-grabbing assembly 4 via a chain. As the sand-grabbing assembly 4 moves up and down, the chain drives one end of the material channel 7 to fold around the hinge structure, thereby realizing the lateral transport of sand and water from the grab bucket opening and closing mechanism 12 to the mixing tank 5. The entire material channel 7 has a certain inclination angle to facilitate the flow of steel sand and water into the mixing tank 5 by gravity. The mixing tank is fixedly installed on the frame. The mixing tank is equipped with several sand suction pipes. One end of each sand suction pipe extends into the mixing tank, and the other end is connected to the spray gun. The sand suction pipes 6 draw sand from the mixing tank 5 and transport it to the spray gun inside the sandblasting chamber 2, fulfilling the steel sand requirements of the entire sandblasting process.

[0027] The mixing tank 5 is equipped with a drain outlet at the bottom to meet the normal cleaning and maintenance needs of the equipment. Furthermore, the weight of the slurry inside the mixing tank 5 is monitored in real time. The control system monitors the weight of the slurry inside the mixing tank in real time and uses this weight signal to control the lifting speed of the sand-grabbing assembly. The weight information of the slurry inside the tank is fed back to the control system, which further controls the drive motor of the sand-grabbing assembly 4. Based on the normal production weight range set in the process, the system automatically adjusts the lifting rate of the sand-grabbing assembly 4 to meet the sand supply requirements.

[0028] The relevant production requirements for this wet sandblasting machine equipment are as follows:

[0029] 1. Depending on the specifications and models of the production materials, the weight of the sand-water slurry in the mixing tank is basically maintained within the range of 70-80kg, which can meet the sand consumption needs of multiple spray guns inside the sandblasting chamber.

[0030] 2. Due to structural dimensions and other factors, each sandblasting machine is initially loaded with 260kg of sand to meet the normal cycle of sand loading, use, and return during normal production.

[0031] 3. Matches the electric lifting operation speed of conventional sand grabbing components, with the maximum operating speed set at 320mm / s, meeting the sand loading requirements under normal sand return and consumption conditions.

[0032] 4. To prevent abnormal situations, the maximum weight of the sand-water slurry in the mixing tank is set to 85kg. When the weight exceeds the upper limit, the sand loading action of the sand grabbing component can be suspended to prevent unnecessary impact caused by excessive concentration.

[0033] Compared to existing equipment technology, this equipment has the following advantages:

[0034] 1. The sand-water slurry can be recycled and reused. The entire process of sand application, sand use, and sand return can be completed automatically without the need for manual intervention during the production process.

[0035] 2. The lifting speed of the sand-grabbing component 4 can be automatically adjusted according to the real-time consumption demand to match the sand supply and save energy consumption.

[0036] 3. Establish a complete monitoring and feedback mechanism for the weight of sand and slurry materials to achieve dynamic monitoring of the entire equipment and ensure consistent production results and quality through quality control.

[0037] 4. The sandblasting process is completed automatically, eliminating the need for one hand to hold the gun and the other to hold the part, and enabling production to proceed automatically without manual operation.

[0038] The above specific embodiments are only used to explain and illustrate the present utility model, and are not intended to limit the present utility model. Any changes and substitutions made to the present utility model without creative effort within the scope of the present utility model concept and claims shall fall within the protection scope of the present utility model patent.

Claims

1. A wet sandblasting machine, characterized in that, The utility model relates to a sand blasting machine, including frame, sand blasting cabin, sand return cabin, sand grabbing assembly, sand grabbing column, material channel, stirring barrel and control system, the control system is electrically connected with sand grabbing assembly, sand blasting cabin and sand return cabin are fixedly arranged on frame respectively, sand return cabin is located below sand blasting cabin, sand return cabin is linked with sand blasting cabin, sand grabbing column is fixedly installed on frame, sand grabbing assembly is movably installed on sand grabbing column, sand grabbing assembly can move to inside sand return cabin, material channel is movably installed on frame, stirring barrel is fixedly installed on frame, material channel is located between sand grabbing column and stirring barrel, sand suction pipe is equipped in stirring barrel, sand blasting cabin is equipped with spray gun, sand suction pipe and spray gun are linked.

2. The wet blast machine of claim 1, wherein, The sand grabbing assembly includes a drive motor, a lifting mechanism, a grab bucket opening and closing mechanism, and a telescopic cylinder, the drive motor, the grab bucket opening and closing mechanism, and the telescopic cylinder are fixedly installed on the lifting mechanism, the lifting mechanism is movably connected with the sand grabbing column, the lifting mechanism is drivingly connected with the drive motor, and the grab bucket opening and closing mechanism is fixedly connected with the telescopic cylinder.

3. The wet blaster of claim 1, wherein, The material channel is a metal plate assembly with a hinge structure in the middle and capable of being folded at the left and right ends through the hinge structure, one end of the material channel is fixed on the frame and extends to the feeding port position of the stirring barrel, and the other end of the material channel is fixedly connected with the sand grabbing assembly.

4. The wet blaster of claim 3, wherein, The material channel is obliquely arranged above the frame.

5. The wet blaster of claim 1, wherein, The stirring barrel is provided with a sewage outlet at the bottom.

6. The wet blaster of claim 1, wherein, The sand return cabin has a funnel structure with a large opening and a small bottom.

7. The wet blaster of claim 1, wherein, The sand suction pipe has a plurality of ends, one end of the sand suction pipe extends into the stirring barrel, and the other end of the sand suction pipe is connected with the spray gun.

8. The wet blast machine according to any one of claims 1 to 7, characterized in that The sand grabbing column has two roots and is symmetrically arranged above the sand return cabin, and the sand grabbing assembly is installed between the two sand grabbing columns.

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