Electrothermal alloy sand blasting device

Abstract

The utility model relates to the technical field of sand blasting equipment, in particular to an electrothermal alloy sand blasting device. Comprising an air inlet cylinder, a sand blasting pipe, a sand box, a circular shell and a driving assembly, the air inlet cylinder is connected with an air inlet device, and an air outlet nozzle is installed at the end of the air inlet cylinder. A communicating pipe is connected between the sand blasting pipe and the air inlet cylinder, and a sand blasting nozzle is mounted at the end part of the sand blasting pipe; the circular shell is arranged on the sand blasting pipe, a discharging hole communicated with the interior of the sand blasting pipe is formed in one position of the bottom end of the sand blasting pipe, a feeding disc is rotationally arranged on the inner side of the circular shell, and an annular hole is formed in the feeding disc; the driving assembly is used for driving the feeding disc to rotate; the sand box is installed above the circular shell, and a discharging pipe is arranged between the sand box and the circular shell in a communicating mode; a pressing column is arranged on the inner side of the sand box, and a reciprocating type air cylinder used for driving the pressing column to move is installed on the sand box. The technical scheme has the advantages of stable air supply and sand supply, and can realize uniform output of sand.

Description

TECHNICAL FIELD

[0001] The utility model relates to sand blasting equipment technical field especially relates to a kind of electrothermal alloy sand blasting device. BACKGROUND

[0002] Electrothermal alloy is a kind of resistance alloy that uses the resistance characteristic of metal to make heating body, and it can convert electric energy into heat energy.Electrothermal alloy is a functional material that converts electric energy into heat energy, and is mainly used for manufacturing various electrothermal elements.These electrothermal elements are widely used in metallurgy, machinery, petrochemical, electrical, construction, military industry, household appliances and other fields.Electrothermal alloy is mainly divided into two categories: Ni-Cr system (nickel-chromium alloy) and Fe-Cr-Al system (iron-chromium-aluminum alloy).

[0003] Patent No.CN112264935B discloses a kind of sand blasting mechanism of aluminum alloy pipe sand blasting machine, including sand blasting gun pipe, the front end of sand blasting gun pipe is equipped with nozzle, bottom is equipped with compressed air inlet, top is equipped with sand inlet cylinder, sand inlet cylinder is equipped with sand inlet door, sand inlet door is closed by the splicing of fixed plate and movable plate, movable plate is hinged on the inner wall of sand inlet cylinder, movable plate is supported by reset spring below, vertical fixed magnet core is equipped at the top of movable plate, magnet core is wound coil, fixed magnetic block is equipped above magnet core, the magnetic pole of lower end of fixed magnetic block is opposite the magnetic pole of upper end of magnet core after magnetization.

[0004] The above-mentioned patent still has the following technical defects: 1. When feeding into the sand inlet cylinder, the sand supply stability must be ensured, and when too much sand is fed, the opening of the movable plate will be larger, which will increase the amount of sand supply.2. Sand inlet cylinder must ensure airtight structure, otherwise high-pressure gas in sand blasting gun pipe will be discharged through sand inlet cylinder feeding port, which will cause inconvenience in feeding work.3. Sand and high-speed airflow cannot be uniformly mixed, and the uniformity of sand blasting cannot be improved. UTILITY MODEL CONTENTS

[0005] The utility model aims at the problems in the background art, and provides an electrothermal alloy sand blasting device.

[0006] The technical scheme of the utility model provides an electrothermal alloy sand blasting device, which comprises:

[0007] The air inlet cylinder is connected with an air inlet device, and the end of the air inlet cylinder is provided with an air outlet nozzle;

[0008] The sand blasting pipe is connected with the air inlet cylinder through a communication pipe, the communication pipe is in communication with the inside of the sand blasting pipe, the air outlet nozzle is located on the inside of the communication pipe, and the end of the sand blasting pipe is provided with a sand blasting nozzle;

[0009] The circular shell is arranged on the sand blasting pipe, a bottom end of the sand blasting pipe is provided with a discharging hole which is communicated with the inside of the sand blasting pipe, the inside of the circular shell is rotatably provided with a feeding disc, the feeding disc is provided with an annular hole, and a plurality of partition plates are arranged along the annular array on the inside of the annular hole;

[0010] The driving assembly is used for driving the feeding disc to rotate.

[0011] The sand material box is arranged above the circular shell, and a discharging pipe is arranged in communication between the sand material box and the circular shell; the inside of the sand material box is provided with a pressing column, and a reciprocating air cylinder used for driving the pressing column to move is arranged on the sand material box.

[0012] Preferably, the driving assembly comprises an impeller and a transmission shaft, the transmission shaft is rotatably arranged on the sand blasting pipe, the lower end of the transmission shaft is located on the inside of the sand blasting pipe and connected with the impeller, and the upper end of the transmission shaft is located on the inside of the circular shell and connected with the feeding disc.

[0013] Preferably, the air inlet device comprises an air inlet pipe and a flow control valve, the air inlet pipe is communicated with the inside of the air inlet cylinder, and the flow control valve is arranged on the air inlet pipe; the air pressure sensor and the controller are arranged on the inside and outside of the air inlet cylinder respectively.

[0014] Preferably, the pressing column is clearance-fitted with the sector-shaped area formed between the two partition plates; and the pressing column is clearance-fitted with the inside of the discharging pipe.

[0015] Preferably, the bottom of the inner cavity of the sand material box is in a funnel structure.

[0016] Preferably, the sand material box is provided with a vertical strip-shaped transparent observation window, and a scale bar is arranged on the transparent observation window.

[0017] Compared with the prior art, the utility model has the beneficial technical effects that:

[0018] 1. Stable air flow output can be realized.

[0019] 2. The output sand material can be compacted through the cooperation of the reciprocating air cylinder and the pressing column, and the rotation of the feeding disc is realized under the driving action of the driving assembly, so that the sand material inside the annular hole is continuously output through the discharging hole, thereby realizing stable sand material output.

[0020] 3. The sand material can be blown and scattered through the high-speed air flow sprayed by the added air outlet nozzle, so that the sand material is uniformly mixed into the high-speed air flow, thereby ensuring uniform sand particle spraying. BRIEF DESCRIPTION OF DRAWINGS

[0021] Fig. 1 It is a structural schematic view of the utility model.

[0022] Fig. 2 It is a sectional view of the utility model.

[0023] Fig. 3 It is the sectional view structure diagram of the circular shell in the utility model.

[0024] Reference sign: 1, air inlet cylinder; 2, sand blasting pipe; 3, communication pipe; 4, sand material box; 5, circular shell; 6, air inlet pipe; 7, flow control valve; 8, feeding disc; 801, annular hole; 9, baffle; 10, reciprocating air cylinder; 11, pressing column; 12, blanking pipe; 13, impeller; 14, transmission shaft; 15, air outlet nozzle; 16, sand blasting nozzle. DETAILED DESCRIPTION

[0025] Example one

[0026] As Figs. 1-3 shown, the electric heating alloy sand blasting device provided by the embodiment includes an air inlet cylinder 1, a sand blasting pipe 2, a sand material box 4, a circular shell 5 and a driving assembly.

[0027] An air inlet device is connected to the air inlet cylinder 1, the air inlet device includes an air inlet pipe 6 and a flow control valve 7, the air inlet pipe 6 is in communication with the inside of the air inlet cylinder 1, and the flow control valve 7 is installed on the air inlet pipe 6; an air pressure sensor and a controller are respectively installed on the inside and outside of the air inlet cylinder 1, and an air outlet nozzle 15 is installed at the end of the air inlet cylinder 1; a communication pipe 3 is connected between the air inlet cylinder 1 and the sand blasting pipe 2, the communication pipe 3 is in communication with the inside of the sand blasting pipe 2, the air outlet nozzle 15 is located inside the communication pipe 3, and a sand blasting nozzle 16 is installed at the end of the sand blasting pipe 2.

[0028] The circular shell 5 is arranged on the sand blasting pipe 2, a blanking hole in communication with the inside of the sand blasting pipe 2 is formed at the bottom end of the sand blasting pipe 2, an annular hole 801 is formed in a feeding disc 8 rotatably arranged on the inside of the circular shell 5, a plurality of baffles 9 are arranged along the annular array on the inside of the annular hole 801; the driving assembly is used to drive the feeding disc 8 to rotate.

[0029] The sand material box 4 is installed above the circular shell 5, the bottom of the inner cavity of the sand material box 4 is funnel-shaped, so that the residual material at the bottom end inside the sand material box 4 can be fully discharged, and a blanking pipe 12 is arranged in communication between the sand material box 4 and the circular shell 5; a vertical strip-shaped transparent observation window is arranged on the sand material box 4, a scale bar is arranged on the transparent observation window, the above structure is arranged to enable the operator to easily observe the residual material inside the sand material box 4, a feeding opening is installed on the sand material box 4, and a cover is detachably installed at the feeding opening; a pressing column 11 is arranged on the inside of the sand material box 4, and a reciprocating air cylinder 10 is installed on the sand material box 4 and used to drive the pressing column 11 to move; the pressing column 11 is clearance-fitted with the fan-shaped area gap between the two baffles 9; the pressing column 11 is clearance-fitted with the inside of the blanking pipe 12.

[0030] Specifically, in order to realize stable gas output, the air pressure sensor is installed to monitor the internal air pressure value of the air inlet cylinder 1 in real time and feed back to the controller in real time, and the constant air pressure value in the air inlet cylinder 1 is set in the controller in advance, when the air pressure is too high or too low, the valve opening of the flow control valve 7 is controlled by the controller to realize the adjustment of the internal air pressure of the air inlet cylinder 1, which is beneficial to the stability of the internal air pressure of the air inlet cylinder 1, and further, one end of the air inlet pipe 6 is connected to the air pump or other gas output equipment, and the pressure relief valve is installed on the air inlet pipe 6, which can prevent the pressure in the air inlet pipe 6 from increasing sharply due to the reduction of the valve opening of the flow control valve 7.

[0031] The gas input into the air inlet cylinder 1 is sprayed out through the air outlet nozzle 15, at the same time, the sand in the sand box 4 flows into the inside of the annular hole 801 through the discharge pipe 12, in order to reduce the porosity of the sand, the reciprocating air cylinder 10 is installed to drive the plunger 11 to move up and down, the plunger 11 can realize the function of rapid discharge during the movement, and the discharged sand can be compacted, the porosity of the sand is reduced, so that the sand can be uniformly output, at the same time, the high-speed airflow is formed in the inside of the sand blasting pipe 2, the driving assembly is arranged to drive the feeding disc 8 to rotate, the sand in the inside of the feeding disc 8 is discharged to the inside of the sand blasting pipe 2 through the discharge hole during the rotation and mixed with the high-speed airflow, finally the high-speed airflow mixed with sand particles is sprayed out through the sand blasting nozzle 16 to the surface of the electric heating alloy, which can realize the polishing and grinding work of the electric heating alloy, further, the output direction of the sand blasting nozzle 16 is not limited by the figure, and can be reasonably arranged according to the actual use requirements.

[0032] In summary, the technical scheme has the following advantages:

[0033] 1. Stable airflow output can be realized.

[0034] 2. The output sand can be compacted by the cooperation of the reciprocating air cylinder 10 and the plunger 11, and the rotation of the feeding disc 8 is realized under the driving action of the driving assembly, so that the sand in the inside of the annular hole 801 is continuously output through the discharge hole, thereby realizing stable sand output.

[0035] 3. The high-speed airflow is sprayed out through the added air outlet nozzle 15 to blow away the sand, so that the sand is uniformly mixed into the high-speed airflow to ensure uniform spraying of the sand particles.

[0036] Example two

[0037] As Fig. 2Compared with the first embodiment, the driving assembly comprises the impeller 13 and the transmission shaft 14, the transmission shaft 14 is rotatably installed on the sand blasting pipe 2, the lower end thereof is located at the inner side of the sand blasting pipe 2 and connected with the impeller 13, and the upper end thereof is located at the inner side of the circular shell 5 and connected with the feeding disc 8.

[0038] The high-speed airflow sprayed through the air outlet nozzle 15 drives the impeller 13 to rotate, and the feeding disc 8 is driven to rotate under the transmission of the transmission shaft 14; the device has the following advantages: first, the feeding disc 8 is driven without additional driving equipment; second, the mixing effect of the sand particles and the high-speed airflow is further improved through the setting of the impeller 13.

[0039] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to this, and various changes can be made within the knowledge range possessed by the technical personnel in the technical field without departing from the purpose of the utility model.

Claims

1. An electrothermal alloy sandblasting device, characterized in that, include: An air intake cylinder (1) is connected to an air intake device, and an air outlet nozzle (15) is installed at the end of the air intake cylinder (1). A sandblasting pipe (2) is connected to an air inlet cylinder (1) by a connecting pipe (3). The connecting pipe (3) is connected to the interior of the sandblasting pipe (2). The air outlet nozzle (15) is located inside the connecting pipe (3). A sandblasting nozzle (16) is installed at the end of the sandblasting pipe (2). A circular outer shell (5) is set on a sandblasting pipe (2). A material feeding hole communicating with the inside of the sandblasting pipe (2) is opened at the bottom end of the sandblasting pipe (2). A feeding plate (8) is rotatably set on the inner side of the circular outer shell (5). An annular hole (801) is opened on the feeding plate (8). Multiple partitions (9) are arranged along the annular array on the inner side of the annular hole (801). Drive assembly for driving the feed tray (8) to rotate; A sand box (4) is installed above a circular outer shell (5). A discharge pipe (12) is provided between the sand box (4) and the circular outer shell (5). A pressure column (11) is provided inside the sand box (4). A reciprocating cylinder (10) is installed on the sand box (4) to drive the pressure column (11) to move.

2. The electrothermal alloy sandblasting device according to claim 1, characterized in that, The drive assembly includes an impeller (13) and a drive shaft (14). The drive shaft (14) is rotatably mounted on the sandblasting pipe (2). Its lower end is located inside the sandblasting pipe (2) and connected to the impeller (13). Its upper end is located inside the circular housing (5) and connected to the feeding disc (8).

3. The electrothermal alloy sandblasting device according to claim 1, characterized in that, The air intake device includes an air intake pipe (6) and a flow control valve (7). The air intake pipe (6) is connected to the interior of the air intake cylinder (1), and the flow control valve (7) is installed on the air intake pipe (6). A pressure sensor and a controller are installed on the inner and outer sides of the air intake cylinder (1), respectively.

4. The electrothermal alloy sandblasting device according to claim 1, characterized in that, The fan-shaped area formed between the pressure column (11) and the two partitions (9) is clearance-fitted; the inner side of the pressure column (11) and the feed pipe (12) is clearance-fitted.

5. The electrothermal alloy sandblasting device according to claim 1, characterized in that, The bottom of the inner cavity of the sand box (4) is a funnel-shaped structure.

6. The electrothermal alloy sandblasting device according to claim 1, characterized in that, A vertical strip-shaped transparent observation window is provided on the sand box (4), and a scale strip is provided on the transparent observation window.

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