A dust removal device for a precision casting workshop

Abstract

The utility model discloses a dust collector of precision foundry workshop, including jar body, the bottom of jar body is provided with the discharge pipe, the fixed cone cover of jar body, the outer wall of cone cover is provided with the evenly distributed air hole, one side fixed of jar body has the fan, the air outlet of fan is fixed with the air inlet pipe, and the one end of air inlet pipe extends to the inside integration of jar body and has the elbow pipe, and the top end of elbow pipe extends to the inside of cone cover, and one side fixed of jar body has the conveying pipe, and the top end of conveying pipe extends to the inside of jar body and is connected with the hopper, and the hopper is located at the top of cone cover. The utility model discloses through the quartz sand of cone cover and disperses, then through the fan and blows to the inside of cone cover, makes the dust inside quartz sand float, and then makes more clean when carrying out dust removal to quartz sand, and the dust is not easy to overflow from the discharge pipe of bottom, makes the foundry workshop not easy to produce the dust of greater.

Description

Technical Field

[0001] This utility model relates to the technical field of dust removal equipment for foundry sand, and specifically to a dust removal device for a precision casting workshop. Background Technology

[0002] Foundry sand is a common material in precision casting workshops. It is mainly used for the processing of mold shells. The main component of foundry sand is quartz sand. Before using quartz sand, it needs to be dusted to ensure that the quartz sand meets the requirements for use.

[0003] Chinese Patent Application No. 202022260098.8 discloses a dust removal device for shell-making sand in a precision casting workshop, comprising a hollow dust removal body, an internal screen dividing the interior of the dust removal body into an adsorption chamber and an air inlet chamber distributed vertically; a feed inlet and a discharge outlet are provided on the side wall of the dust removal body, both located above the screen; and a first fan, the output end of which is provided with a duct communicating with the air inlet chamber.

[0004] When the dust removal device described in the aforementioned patent is in use, the quartz sand tends to accumulate and slide onto the screen when it is added to the feed inlet. This results in insufficient removal of dust from the quartz sand, and dust generated inside the dust removal unit can easily overflow from the discharge outlet on one side, leading to significant dust generation in the foundry workshop. Therefore, there is an urgent need to design a dust removal device for precision casting workshops to solve these problems. Summary of the Invention

[0005] The purpose of this invention is to provide a dust removal device for a precision casting workshop to address the aforementioned shortcomings in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A dust removal device for a precision casting workshop includes a tank body, a discharge pipe at the bottom of the tank body, a conical hood fixed to the tank body, uniformly distributed ventilation holes on the outer wall of the conical hood, a fan fixed to one side of the tank body, an air inlet pipe fixed to the air outlet of the fan, one end of the air inlet pipe extending into the interior of the tank body integrally formed with a bend, the top end of the bend pipe extending into the interior of the conical hood, a conveying pipe fixed to one side of the tank body, the top end of the conveying pipe extending into the interior of the tank body and connected to a funnel, the funnel being located at the top of the conical hood.

[0007] Furthermore, the conveying pipe has an internal bearing connected to a rotating shaft, the outer wall of the rotating shaft is fixed with an auger plate, the bottom end of the conveying pipe is fixed with a motor, and the output of the motor is connected to the rotating shaft via a key.

[0008] Furthermore, a feed hopper is welded to the outer wall of the conveying pipe, a support rod is fixed between the conveying pipe and the tank, and a dust outlet pipe is welded to the top outer wall of the tank.

[0009] Furthermore, a crossbar is welded inside the bend, and a cone is fixed to the top of the crossbar, with the cone located at the center of the top of the bend.

[0010] Furthermore, a connecting post is integrally formed on the bottom outer wall of the cone, and a stud is integrally formed on the bottom end of the connecting post, which is threadedly connected to the crossbar.

[0011] Furthermore, the outer wall of the bent tube has insertion holes, and the two ends of the crossbar are inserted into the insertion holes.

[0012] In the above technical solution, the dust removal device for a precision casting workshop provided by this utility model has the following beneficial effects: Quartz sand is dispersed by a conical hood, and then air is blown into the interior of the conical hood by a fan, causing the dust inside the quartz sand to float up, thus making the dust removal of quartz sand cleaner. At the same time, dust is less likely to overflow from the bottom discharge pipe, making it less likely for the casting workshop to generate large amounts of dust. A motor drives a rotating shaft to rotate, which in turn drives an auger plate to transport the quartz sand inside the feed hopper to the interior of the tank, making the feeding of quartz sand more convenient during dust removal. By fixing a conical body inside the bent pipe, the air blown from the discharge pipe is more easily diffused in all directions, allowing the air to adapt to the conical structure of the conical hood to float the dust. Simultaneously, the crossbar is first inserted into the insertion hole, then the stud is threaded to the crossbar, and finally the crossbar is welded to the bent pipe, making it easier to fix the conical body and crossbar inside the bent pipe. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 This is a schematic diagram of the internal structure of a dust removal device for a precision casting workshop according to an embodiment of the present invention.

[0015] Figure 2 This is an enlarged structural schematic diagram of point A, which is provided for an embodiment of a dust removal device for a precision casting workshop according to this utility model.

[0016] Explanation of reference numerals in the attached figures: 1. Tank body, 2. Funnel, 3. Conical cover, 4. Vent hole, 5. Discharge pipe, 6. Air inlet pipe, 7. Fan, 8. Dust outlet pipe, 9. Conveying pipe, 10. Rotary shaft, 11. Screw plate, 12. Support rod, 13. Feed hopper, 14. Motor, 15. Bend, 16. Conical body, 17. Crossbar, 18. Insertion hole, 19. Connecting column, 20. Stud. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0018] like Figure 1-2 As shown in the figure, the dust removal device for a precision casting workshop provided by this utility model includes a tank 1, a discharge pipe 5 at the bottom of the tank 1, a conical cover 3 fixed to the tank 1, and evenly distributed ventilation holes 4 on the outer wall of the conical cover 3. A fan 7 is fixed to one side of the tank 1, and an air inlet pipe 6 is fixed at the air outlet of the fan 7. One end of the air inlet pipe 6 extends into the interior of the tank 1 and is integrally formed with a bent pipe 15. The top end of the bent pipe 15 extends into the interior of the conical cover 3. A conveying pipe 9 is fixed to one side of the tank 1, and the top end of the conveying pipe 9 extends into the interior of the tank 1 and is connected to a funnel 2. The funnel 2 is located at the top of the conical cover 3.

[0019] Specifically, in this embodiment, a cylindrical tank 1 is included. A discharge pipe 5 is located at the bottom of the tank 1, positioned at the lowest point of the tank 1. This allows quartz sand to accumulate at the discharge pipe 5 during discharge, preventing dust from overflowing from the tank 1. A conical shroud 3 is fixed to the tank 1. The outer wall of the conical shroud 3 has evenly distributed ventilation holes 4, the diameter of which is smaller than the particle size of the quartz sand. A fan 7 is fixed to one side of the tank 1. An air inlet pipe 6 is fixed to the outlet of the fan 7, connecting the outlet of the fan 7 to the air inlet pipe 6. One end of the air inlet pipe 6 extends into the interior of the tank 1 and is integrally formed with a bent pipe 15. With its top facing upwards and located on the central axis of tank 1, the top of the bent pipe 15 extends into the interior of the conical shroud 3. The air generated by the blower 7 blows out from the bent pipe 15, causing the dust mixed in with the quartz sand sliding down the outer wall of the conical shroud 3 to be blown up. A conveying pipe 9 is fixed on one side of tank 1, and the top of the conveying pipe 9 extends into the interior of tank 1 and is connected to a funnel 2. The funnel 2 is located at the top of the conical shroud 3. Quartz sand enters the funnel 2 from the conveying pipe 9 and then flows from the inside of the funnel 2 onto the conical shroud 3. The conical structure of the conical shroud 3 can disperse the flowing quartz sand. After the quartz sand is dispersed, the dust mixed in is more easily blown away by the wind, preventing the quartz sand from accumulating too thickly during the sliding process.

[0020] This utility model provides a dust removal device for a precision casting workshop. The device disperses quartz sand through a conical hood 3, and then blows air into the interior of the conical hood 3 through a fan 7, causing the dust inside the quartz sand to float up. This makes the dust removal of quartz sand cleaner, and at the same time, the dust is less likely to overflow from the bottom discharge pipe 5, so that the casting workshop is less likely to generate a lot of dust.

[0021] In another embodiment of this utility model, a rotating shaft 10 is connected to the internal bearing of the conveying pipe 9, and an auger plate 11 is fixed to the outer wall of the rotating shaft 10. A motor 14 is fixed to the bottom end of the conveying pipe 9, and the output of the motor 14 is connected to the rotating shaft 10 via a key. The motor 14 drives the rotating shaft 10 and the auger plate 11 to rotate. A feed hopper 13 is welded to the outer wall of the conveying pipe 9. The rotating shaft 10 is driven to rotate by the motor 14, so that the rotating shaft 10 drives the auger plate 11 to transport the quartz sand inside the feed hopper 13 to the inside of the tank 1, which makes it more convenient to feed the quartz sand when removing dust. A support rod 12 is fixed between the conveying pipe 9 and the tank 1. The support rod 12 provides support for the conveying pipe 9. A dust outlet pipe 8 is welded to the top outer wall of the tank 1. The dust outlet pipe 8 is connected to the workshop dust collector, so that the dust collector sucks away the dust generated inside the tank 1.

[0022] In another embodiment of this utility model, a crossbar 17 is welded inside the bent pipe 15, and a cone 16 is fixed to the top of the crossbar 17. The cone 16 is located at the center of the top of the bent pipe 15. By fixing the cone 16 inside the bent pipe 15, the air blown from the discharge pipe 5 is more easily diffused in all directions, so that the air adapts to the cone structure of the cone cover 3 to float up the dust. A connecting post 19 is integrally formed on the bottom outer wall of the cone 16, and a stud 20 is integrally formed at the bottom end of the connecting post 19. The stud 20 is screwed to the crossbar 17. The bend 15 has insertion holes 18 on its outer wall. Both ends of the crossbar 17 are inserted into the insertion holes 18. Since it is inconvenient to directly weld the crossbar 17 into the bend 15, the crossbar 17 is first inserted into the insertion holes 18. Then, the stud 20 is threaded into the crossbar 17 and the position of the cone 16 is corrected. Finally, the crossbar 17 is welded to the bend 15. Welding is performed through the insertion holes 18 on the outer wall of the bend 15, which makes it easier to fix the cone 16 and the crossbar 17 inside the bend 15.

[0023] Working principle: When in use, connect the dust outlet pipe 8 to the dust collector in the workshop, load the quartz sand that needs to be dusted into the feed hopper 13, drive the rotating shaft 10 to rotate through the motor 14, and drive the auger plate 11 to rotate, so that the auger plate 11 transports the quartz sand into the funnel 2 and drops it. The quartz sand can be dispersed and fall through the conical cover 3. At the same time, the fan 7 delivers air into the tank 1, so that the air blows from the bend pipe 15 into the inside of the conical cover 3. When the air passes through the vent hole 4 of the conical cover 3, it can float the dust mixed in the quartz sand, so that the dust is sucked away by the dust collector from the dust removal pipe.

[0024] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A dust removal device for a precision casting workshop, characterized in that, The container includes a tank (1), a discharge pipe (5) at the bottom of the tank (1), a conical cover (3) fixed to the tank (1), and evenly distributed ventilation holes (4) on the outer wall of the conical cover (3). A fan (7) is fixed to one side of the tank (1), and an air inlet pipe (6) is fixed at the air outlet of the fan (7). One end of the air inlet pipe (6) extends into the interior of the tank (1) and is integrally formed with a bent pipe (15). The top end of the bent pipe (15) extends into the interior of the conical cover (3). A conveying pipe (9) is fixed to one side of the tank (1), and the top end of the conveying pipe (9) extends into the interior of the tank (1) and is connected to a funnel (2). The funnel (2) is located at the top of the conical cover (3).

2. The dust removal device for a precision casting workshop according to claim 1, characterized in that, The conveying pipe (9) has an internal bearing connected to a rotating shaft (10), and an auger plate (11) is fixed to the outer wall of the rotating shaft (10). A motor (14) is fixed to the bottom end of the conveying pipe (9), and the output of the motor (14) is connected to the rotating shaft (10) by a key.

3. A dust removal device for a precision casting workshop according to claim 2, characterized in that, The outer wall of the conveying pipe (9) is welded with a feed hopper (13), a support rod (12) is fixed between the conveying pipe (9) and the tank (1), and a dust outlet pipe (8) is welded to the top outer wall of the tank (1).

4. A dust removal device for a precision casting workshop according to claim 1, characterized in that, A crossbar (17) is welded inside the bend (15), and a cone (16) is fixed to the top of the crossbar (17). The cone (16) is located at the center of the top of the bend (15).

5. A dust removal device for a precision casting workshop according to claim 4, characterized in that, The bottom outer wall of the cone (16) is integrally formed with a connecting post (19), and the bottom end of the connecting post (19) is integrally formed with a stud (20), which is threadedly connected to the crossbar (17).

6. A dust removal device for a precision casting workshop according to claim 5, characterized in that, The outer wall of the bend (15) has a plug hole (18), and both ends of the crossbar (17) are plugged into the plug hole (18).

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