Lost foam casting sand airing device

Abstract

The utility model discloses an evanescent mode casting sand airing device, which belongs to the technical field of evanescent mode casting and comprises a shell, a feeding component is arranged at one end of the shell, a conical net cylinder is rotatably mounted in the shell, a second motor is mounted at the other end of the shell, and a rotating shaft is fixed on an output shaft of the second motor. The rotating shaft penetrates through the shell and extends into the conical net barrel, turning and stirring blades are arranged on the outer side of the rotating shaft, gear rings sleeve the outer sides of the two ends of the conical net barrel, and a first chain wheel sleeves the outer side of one end of the rotating shaft. According to the sand mixing device, sand in the conical net cylinder can be turned in multiple directions, so that the sand is turned in different moving directions, and the sand at different positions, different temperatures and different humidity is fully mixed, so that the uniformity of the whole sand is improved, and sand particles can be frequently exposed in the air due to more sufficient turning; and the contact area between the sand and air is increased, so that the sand airing efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sand airing device, in particular to a lost foam casting sand airing device, and belongs to the lost foam casting technical field. BACKGROUND

[0002] With the continuous development of society, the lost foam casting is also continuously improved, and in the process of the lost foam casting, the corresponding device is often needed to air dry and cool the material, so the corresponding sand airing device needs to be used, and the sand airing device still has certain deficiencies in the process of use.

[0003] The prior art such as the utility model with the application number 202021491993.4 discloses a lost foam casting sand airing device, which is provided with a drying mechanism, and when the turnover shaft rolls the material, the external air is cooled by the action of the drying mechanism and is conveyed to the distribution groove through the pipeline, and the cold air is uniformly distributed to the spray head through the distribution groove, and at this time, the material is blown by the spray head, so that the device realizes the effect of rapid drying, and thus the working efficiency of the device is improved.

[0004] The above-mentioned application still has deficiencies:

[0005] The lost foam casting sand airing device uses the turnover shaft to stir the sand in the inside, although part of the sand can be stirred, but the movement track of the sand is single, and the sand at the bottom cannot be stirred by the turnover shaft, so that the sand cannot be uniformly contacted with the cold air and the sand airing efficiency is reduced;

[0006] Therefore, the lost foam casting sand airing device is designed to optimize the above-mentioned problems. UTILITY MODEL CONTENTS

[0007] The main purpose of the utility model is to provide a lost foam casting sand airing device to solve the problems in the above background technology.

[0008] The purpose of the utility model can be achieved by adopting the following technical scheme:

[0009] The utility model provides a kind of lost foam casting sand drying device, including shell, one end of shell is provided with feeding assembly, conical screen cylinder is rotatably installed in the inside of shell, motor two is installed at the other end of shell, the output shaft of motor two is fixed with rotating shaft, and rotating shaft penetrates shell and extends to the inside of conical screen cylinder, the outside of rotating shaft is provided with turnover blade, the outside of both ends of conical screen cylinder is sleeved with gear ring, the outside of one end of rotating shaft is sleeved with sprocket one, the inside of shell and above the position of conical screen cylinder are symmetrically provided with rack roller, and rack roller all is engaged with gear ring, the end of rack roller close to sprocket one all is sleeved with sprocket two, chain is provided between sprocket two and sprocket one, air pump is installed on the top of shell, the output end of air pump is installed with shower head row, and shower head row is located in the inner top wall of shell, and the discharge assembly is provided between conical screen cylinder and rotating shaft.

[0010] Preferably: feeding assembly includes feeding pipe and feeding bin, feeding pipe is located at one end of shell, and the bottom end of feeding pipe is communicated with the end of conical screen cylinder, feeding bin is installed on the top of feeding pipe, motor one is symmetrically installed on the side of feeding bin, the output shaft of motor one is all fixed with roll press roller, and roll press roller is all located in the inside of feeding bin.

[0011] Preferably: the discharge assembly includes fixed cylinder and scraper, fixed cylinder is located at one end of conical screen cylinder close to sprocket one, and fixed cylinder is rotatably connected with conical screen cylinder, scraper is sleeved on the outside of rotating shaft, and scraper is slidably connected with fixed cylinder, the bottom of fixed cylinder is provided with discharge pipe, and the bottom end of fixed cylinder penetrates and extends to the bottom of shell.

[0012] Preferably: the top of feeding bin is provided with fairing, and the inside of feeding bin is provided with flow guide block between roll press roller, the bottom end of feeding pipe is movably connected with one end of conical screen cylinder.

[0013] Preferably: the both ends of shower head row are provided with mounting bracket, and mounting bracket is bolted on the inner top wall of shell.

[0014] Preferably: fixed cylinder and conical screen cylinder are rotatably connected, and bearing is provided between fixed cylinder and conical screen cylinder.

[0015] Preferably: the side of shell is provided with maintenance door, and sealing pad is provided on maintenance door.

[0016] Compared with the prior art, the utility model has the beneficial effects that:

[0017] 1. The utility model discloses a cooperation of shell, air pump, shower head row, conical mesh cylinder, gear ring, motor two, sprocket wheel one, rack roller, pivot, turning blade, sprocket wheel two and chain, can move the sand in conical mesh cylinder in many directions, makes sand different movement direction turn over, lets sand of different position, different temperature and humidity mix fully, thereby improves the uniformity of whole sand more fully turn over makes sand particle can be more frequently exposed to air, increase sand and the contact area of air, thereby improve the efficiency of airing sand.

[0018] 2. The utility model discloses a cooperation of feed pipe, inlet bin, motor one and roll crusher, can crush the sand for casting before airing sand in advance, makes the sand that the high temperature casting process and other reasons lead to caking get the comminution, in order to facilitate the subsequent cooling operation, thereby improve the practicality of this lost foam casting airing sand device.

[0019] 3. The utility model discloses a cooperation of fixed cylinder, scraper and discharge pipe, the sand that airs well flows to fixed cylinder, pivot drives scraper rotation simultaneously, scrapes the sand that sticks in the inside of fixed cylinder from the inner wall, promotes the casting sand to the discharge pipe place and discharges downward, has facilitated the discharge of casting sand. SHEET REFERENCE

[0020] Figure 1 It is the front view of the utility model;

[0021] Figure 2 It is the Figure 1 Structure enlarged view of A place in;

[0022] Figure 3 It is the connection schematic drawing of inlet bin and motor one of the utility model;

[0023] Figure 4 It is the connection schematic drawing of sprocket wheel one and chain of the utility model.

[0024] In the drawing: 1, shell;

[0025] 2, feeding assembly;201, feed pipe;202, inlet bin;203, motor one;204, roll crusher;

[0026] 3, air pump;4, shower head row;5, conical mesh cylinder;6, gear ring;

[0027] 7, discharge assembly;701, fixed cylinder;702, scraper;703, discharge pipe;

[0028] 8, motor two;9, sprocket wheel one;10, rack roller;11, pivot;12, turning blade;13, sprocket wheel two;14, chain. SPECIFIC IMPLEMENTATION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments.

[0030] Therefore, the following detailed description of the embodiments of the present application is not intended to limit the scope of the claimed present application, but only represents some embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0031] It should be noted that the embodiments in the present application and the features and technical solutions in the embodiments can be combined with each other without conflict.

[0032] It should be noted that: similar labels and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0033] In the description of the present application, it should be noted that the orientation or position relationship indicated by the terms "upper", "lower" and the like is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship commonly used when the product is used, or the orientation or position relationship commonly understood by those skilled in the art, such terms are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only used for differentiation, and cannot be understood as indicating or implying relative importance.

[0034] Embodiment 1

[0035] As Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the present embodiment proposes a kind of lost foam casting sand drying device, including shell 1, one end of shell 1 is provided with feeding assembly 2, conical screen cylinder 5 is rotatably installed in the inside of shell 1, motor two 8 is installed at the other end of shell 1, the output shaft of motor two 8 is fixed with rotating shaft 11, and rotating shaft 11 penetrates shell 1 and extends to the inside of conical screen cylinder 5, the outside of rotating shaft 11 is provided with turnover stirring vane 12, the outside of both ends of conical screen cylinder 5 is sleeved with gear ring 6, the outside of one end of rotating shaft 11 is sleeved with sprocket one 9, rack roller 10 is symmetrically arranged in the inside of shell 1 and above the position of conical screen cylinder 5, and rack roller 10 is all engaged with gear ring 6, one end of rack roller 10 close to sprocket one 9 is all sleeved with sprocket two 13, chain 14 is arranged between sprocket two 13 and sprocket one 9, air pump 3 is installed on the top of shell 1, the output end of air pump 3 is installed with nozzle row 4, and nozzle row 4 is located on the inner top wall of shell 1, discharging assembly 7 is arranged between conical screen cylinder 5 and rotating shaft 11.

[0036] Sand enters the inside of conical screen cylinder 5, starts motor two 8, drives rotating shaft 11 and turnover stirring vane 12 to rotate, simultaneously, rotating shaft 11 drives sprocket one 9 to rotate, sprocket one 9 drives two groups of sprocket two 13 to rotate in the same direction through chain 14, sprocket two 13 drives rack roller 10 to rotate in the same direction, and rack roller 10 drives gear ring 6 and conical screen cylinder 5 to rotate reversely, the overturning of conical screen cylinder 5 promotes the sand in the inside of conical screen cylinder 5 to tumble simultaneously, and the reverse rotation of rotating shaft 11 and turnover stirring vane 12 relative to conical screen cylinder 5 simultaneously stirs the sand reversely.

[0037] Example 2

[0038] The scheme in example 1 is further introduced in combination with specific working mode as follows:

[0039] As shown in Figure 1 and Figure 3 As a preferred embodiment, on the basis of the above mode, further, feeding assembly 2 includes feeding pipe 201 and feeding bin 202, feeding pipe 201 is located at one end of shell 1, and the bottom end of feeding pipe 201 is communicated with the end of conical screen cylinder 5, feeding bin 202 is installed at the top of feeding pipe 201, motor one 203 is symmetrically installed on one side of feeding bin 202, the output shaft of motor one 203 is all fixed with rolling roller 204, and rolling roller 204 is all located in the inside of feeding bin 202.

[0040] Pour the casting sand into the inside of feeding bin 202, start two groups of motor one 203, and motor one 203 drives rolling roller 204 to rotate oppositely respectively, to pre-roll the caked sand, and the crushed sand flows into the inside of conical screen cylinder 5 through feeding pipe 201 for subsequent processing.

[0041] As shown in Figure 1 andFigure 2 As shown, in a preferred embodiment, based on the above method, the discharge assembly 7 further includes a fixed cylinder 701 and a scraper 702. The fixed cylinder 701 is located at one end of the conical mesh cylinder 5 near the sprocket 9, and the fixed cylinder 701 is rotatably connected to the conical mesh cylinder 5. The scraper 702 is sleeved on the outside of the rotating shaft 11, and the scraper 702 is slidably connected to the fixed cylinder 701. A discharge pipe 703 is provided at the bottom of the fixed cylinder 701, and the bottom end of the fixed cylinder 701 extends through and to the bottom of the outer shell 1.

[0042] The casting sand inside the conical mesh cylinder 5 flows into the fixed cylinder 701. At the same time, the rotating shaft 11 drives the scraper 702 to rotate, scraping the sand adhering to the inside of the fixed cylinder 701 away from the inner wall, causing the casting sand to be discharged downwards into the lower feed pipe 703.

[0043] like Figure 1 and Figure 3 As shown, in a preferred embodiment, based on the above method, a guide hood is further provided on the top of the feed hopper 202, and a guide block is provided between the inside of the feed hopper 202 and the rolling roller 204, and the bottom end of the feed pipe 201 is movably connected to one end of the conical mesh cylinder 5.

[0044] The guide hood facilitates the flow of casting sand into the feed bin 202, and the guide block guides the casting sand between the rolling rollers 204.

[0045] like Figure 1 As shown, in a preferred embodiment, based on the above method, both ends of the nozzle row 4 are provided with mounting brackets, and the mounting brackets are installed on the inner top wall of the outer casing 1 by bolts.

[0046] The mounting bracket facilitates the installation and removal of nozzle row 4, making maintenance and use easier.

[0047] like Figure 1 As shown, in a preferred embodiment, based on the above method, the fixed cylinder 701 and the conical mesh cylinder 5 are rotatably connected, and a bearing is provided between the fixed cylinder 701 and the conical mesh cylinder 5.

[0048] The bearing between the fixed cylinder 701 and the tapered mesh cylinder 5 reduces the friction between the tapered mesh cylinder 5 and the fixed cylinder 701 when the tapered mesh cylinder 5 rotates.

[0049] like Figure 1 As shown, in a preferred embodiment, based on the above method, a maintenance door is further provided on one side of the outer casing 1, and a sealing gasket is provided on the maintenance door.

[0050] The maintenance door and sealing gasket facilitate the maintenance and cleaning of the interior of the outer casing 1.

[0051] Example 3

[0052] The solutions in Embodiment 1 and Embodiment 2 are further described in combination with specific working modes, and details are described as follows:

[0053] The sand to be dried is poured into the inside of the feeding bin 202, and the two sets of motor one 203 are started to drive the rolling rollers 204 to relatively rotate to pre-crush the caked sand. The crushed sand flows into the inside of the conical mesh cylinder 5 through the feeding pipe 201, and the motor two 8 is started to drive the rotating shaft 11 and the turning blade 12 to rotate. At the same time, the rotating shaft 11 drives the chain wheel one 9 to rotate, and the chain wheel one 9 drives the two sets of chain wheel two 13 to rotate in the same direction through the chain 14. The chain wheel two 13 drives the rack roller 10 to rotate in the same direction, and the rack roller 10 drives the gear ring 6 and the conical mesh cylinder 5 to rotate in the opposite direction. The conical mesh cylinder 5 is turned to make the sand inside the conical mesh cylinder 5 tumble, and the rotating shaft 11 and the turning blade 12 are relatively reversed to stir the sand in the opposite direction. The casting sand flows from the conical mesh cylinder 5 to the fixed cylinder 701, and the rotating shaft 11 drives the scraper 702 to rotate to scrape the sand adhered to the inside of the fixed cylinder 701 from the inner wall, so that the casting sand is discharged downward to the downward pipe 703.

[0054] The above is only further embodiments of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and concept of the present application within the disclosed range, which belongs to the protection scope of the present application.

Claims

1. A lost foam casting drying sand device, comprising a shell (1), characterized in that: A feeding assembly (2) is provided at one end of the outer shell (1). A conical mesh cylinder (5) is rotatably installed inside the outer shell (1). A motor (8) is installed at the other end of the outer shell (1). A rotating shaft (11) is fixed to the output shaft of the motor (8). The rotating shaft (11) passes through the outer shell (1) and extends into the interior of the conical mesh cylinder (5). A stirring blade (12) is provided on the outside of the rotating shaft (11). Toothed rings (6) are fitted on the outside of both ends of the conical mesh cylinder (5). A sprocket (9) is fitted on the outside of one end of the rotating shaft (11). The interior of the outer shell (1) and located in A rack roller (10) is symmetrically arranged above the conical mesh cylinder (5), and the rack roller (10) meshes with the toothed ring (6). A sprocket (2) is fitted on the end of the rack roller (10) near the sprocket (9). A chain (14) is arranged between the sprocket (2) and the sprocket (9). An air pump (3) is installed on the top of the outer shell (1). A nozzle row (4) is installed at the output end of the air pump (3), and the nozzle row (4) is located on the inner top wall of the outer shell (1). A discharge assembly (7) is arranged between the conical mesh cylinder (5) and the rotating shaft (11).

2. The lost foam casting drying sand device according to claim 1, characterized in that: The feeding assembly (2) includes a feeding pipe (201) and a feeding bin (202). The feeding pipe (201) is located at one end of the outer shell (1), and the bottom end of the feeding pipe (201) is connected to the end of the conical mesh cylinder (5). The feeding bin (202) is installed on the top of the feeding pipe (201). A motor (203) is symmetrically installed on one side of the feeding bin (202). The output shaft of the motor (203) is fixed with a rolling roller (204), and the rolling roller (204) is located inside the feeding bin (202).

3. The lost foam casting drying sand device according to claim 1, characterized in that: The discharge assembly (7) includes a fixed cylinder (701) and a scraper (702). The fixed cylinder (701) is located at one end of the conical mesh cylinder (5) near the sprocket (9), and the fixed cylinder (701) is rotatably connected to the conical mesh cylinder (5). The scraper (702) is sleeved on the outside of the rotating shaft (11), and the scraper (702) is slidably connected to the fixed cylinder (701). The bottom of the fixed cylinder (701) is provided with a discharge pipe (703), and the bottom end of the fixed cylinder (701) extends through and to the bottom of the outer shell (1).

4. The lost foam casting drying sand device according to claim 2, characterized in that: A guide hood is provided on the top of the feed hopper (202), and a guide block is provided between the inside of the feed hopper (202) and the rolling roller (204). The bottom end of the feed pipe (201) is movably connected to one end of the conical mesh cylinder (5).

5. The lost foam casting drying sand device according to claim 1, characterized in that: Both ends of the nozzle row (4) are equipped with mounting brackets, and the mounting brackets are installed on the inner top wall of the outer shell (1) by bolts.

6. The lost foam casting drying sand device according to claim 3, characterized in that: The fixed cylinder (701) and the conical mesh cylinder (5) are rotatably connected, and a bearing is provided between the fixed cylinder (701) and the conical mesh cylinder (5).

7. The lost foam casting drying sand device according to claim 1, characterized in that: A maintenance door is provided on one side of the outer casing (1), and a sealing gasket is provided on the maintenance door.

Images