Stirring assembly and foundry sand drying machine

Abstract

The utility model discloses a stirring assembly and a foundry sand drying machine, and relates to the field of drying machines. The stirring assembly comprises a rotating shaft, the rotating shaft is transversely and rotatably connected into the heating tank, the stirring assembly further comprises a motor, the motor is fixedly connected to one side of the heating tank, and the output end of the motor is connected with the adjacent end of the rotating shaft; according to the casting sand stirring device, casting sand can be stirred, so that the heating uniformity of the casting sand can be improved, when the stirring plates rotate, the stirring plates lift the casting sand upwards, when the stirring plates incline downwards, the casting sand falls downwards along the stirring plates, and when the casting sand falls, the casting sand cannot be adjacent and is compact; therefore, the heating uniformity of the foundry sand can be further improved, and meanwhile, when the foundry sand falls onto the foundry sand below, the foundry sand can collide with the foundry sand below, so that the blocky foundry sand which is adhered together can be dispersed under the action of collision.

Description

Technical Field

[0001] The utility model belongs to the technical field of dryers, and in particular relates to a stirring component and a foundry sand dryer. Background Art

[0002] Foundry sand is a kind of sand made from a wide variety of raw materials, such as silica sand, limestone sand, corundum sand, quartz sand, etc., which can all be used as foundry sand. Foundry sand is mainly used in sand casting production. It is a modeling material used to prepare molding sand and core sand in casting production. For example, steel, iron and most non-ferrous alloy castings can be obtained by sand casting method.

[0003] In the production process of foundry sand, a dryer is often used to dry the foundry sand, so as to ensure the dryness of the foundry sand and avoid affecting the production quality of subsequent castings. However, in order to facilitate uniform drying of the foundry sand and improve drying efficiency, an existing foundry sand dryer is generally provided with a stirring component in the dryer to stir the foundry sand while drying. However, the existing stirring component can only perform a single stirring operation on the foundry sand, and the foundry sand may not be heated uniformly, so that part of the foundry sand may agglomerate due to insufficient dryness. In view of this, the present utility model is specially proposed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a stirring assembly and a foundry sand dryer which can overcome the above problems or at least partially solve the above problems.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is: a stirring assembly, including a rotating shaft, which is laterally rotatably connected in the heating tank, and also includes: a motor, which is fixedly connected to one side of the heating tank, and the output end of the motor is connected to an end adjacent to the rotating shaft; a stirring plate, which is equidistantly arranged in a circle in the heating tank and slides against the inner wall of the heating tank, and the stirring plate is fixedly connected to the rotating shaft by a connecting rod.

[0006] In order to facilitate the casting sand to fall from a higher position, the stirring plate is further arranged to be inclined.

[0007] The foundry sand dryer adopts a stirring component. The upper and lower ends of the heating tank are respectively provided with a feed port and a discharge port. The feed port and the discharge port are respectively rotatably connected with a first sealing plate and a second sealing plate. The first sealing plate is provided with a pressure relief port.

[0008] In order to facilitate the rapid removal of the stirring plate from the heating tank, further, the side of the heating tank away from the motor is designed to be open, and a sealing cover is threadedly connected to the open end of the heating tank. A plug is provided at the end of the rotating shaft close to the sealing cover, and a through opening for use with the plug is provided on the sealing cover. The plug is sealingly rotatably connected in the through opening, and a square groove is provided at the end of the rotating shaft close to the motor. The output shaft of the motor is designed to be square, and the output shaft of the motor is detached in the square groove.

[0009] In order to prevent the moisture in the hot air from forming water droplets and entering the foundry sand again, further, a water-absorbing sponge is connected to one side of the first sealing plate close to the feed inlet.

[0010] In order to facilitate the flexible lifting and lowering of the heating tank, further, two groups of telescopic hydraulic cylinders are symmetrically arranged at the bottom of the heating tank, and the telescopic ends of the telescopic hydraulic cylinders are fixedly connected to the bottom of the heating tank.

[0011] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art: the utility model can stir the foundry sand when drying the foundry sand in the heating tank through the coordinated use of components such as the motor, the rotating shaft, the connecting rod and the stirring plate, thereby improving the uniformity of heating of the foundry sand; when the stirring plate rotates, the stirring plate will lift the foundry sand upwards; when the stirring plate is tilted downwards, the foundry sand will fall down along the stirring plate; when the foundry sand falls, the foundry sand will not be adjacent and compact, thereby further improving the uniformity of heating of the foundry sand, effectively improving the efficiency of drying the foundry sand; at the same time, when the foundry sand falls on the foundry sand below, it will collide with the foundry sand below, thereby making the block foundry sand that is stuck together dispersed under the action of the collision, avoiding that some foundry sand is stuck into blocks after drying, affecting subsequent use, and effectively improving the quality of the foundry sand.

[0012] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In the attached picture:

[0014] Figure 1 The three-dimensional structure diagram of the stirring assembly and the foundry sand dryer proposed in the utility model Figure 1 ;

[0015] Figure 2 The three-dimensional structure diagram of the stirring assembly and the foundry sand dryer proposed by the utility model Figure 2 ;

[0016] Figure 3This is a schematic diagram of the three-dimensional structure of the interior of the heating tank in the stirring assembly and the foundry sand dryer proposed by the utility model;

[0017] Figure 4 This is a three-dimensional structural schematic diagram of the stirring assembly and the foundry sand dryer proposed by the utility model when the rotating shaft and the motor are separated;

[0018] Figure 5 The utility model provides a schematic plan view of the structure of a stirring assembly and a rotating shaft, a connecting rod and a stirring plate in a foundry sand dryer.

[0019] In the figure: 1. Heating tank; 101. First sealing plate; 102. Pressure relief port; 103. Second sealing plate; 104. Telescopic hydraulic cylinder; 105. Water-absorbing sponge; 2. Rotating shaft; 201. Motor; 202. Stirring plate; 203. Square groove; 4. Sealing cover. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0021] Embodiment 1:

[0022] Reference Figure 1-Figure 5 The stirring assembly includes a rotating shaft 2, which is laterally rotatably connected to the heating tank 1, and also includes: a motor 201, which is fixedly connected to one side of the heating tank 1, and the output end of the motor 201 is connected to an end adjacent to the rotating shaft 2; a stirring plate 202, which is equidistantly arranged in a circle in the heating tank 1 and slides against the inner wall of the heating tank 1, and the stirring plate 202 is fixedly connected to the rotating shaft 2 by a connecting rod.

[0023] After the foundry sand is formed, it has a certain amount of moisture inside. If it is used directly, it may affect the quality of the casting. Therefore, it needs to be dried before use to ensure the quality of the foundry sand. When the foundry sand needs to be dried, the foundry sand with a certain humidity is first poured into the heating tank 1, and then the heating component provided on the heating tank 1 can be started to heat the inside of the heating tank 1. Then the motor 201 can be started, and the motor 201 will drive the rotating shaft 2 to rotate. The rotating shaft 2 will drive multiple stirring plates 202 to rotate in a circle in the heating tank 1 through the connecting rod to stir the foundry sand, thereby improving the foundry sand. The uniformity of heating. When the stirring plate 202 rotates, the stirring plate 202 will lift the foundry sand upwards. When the stirring plate 202 tilts downward, the foundry sand will fall downward along the stirring plate 202. When the foundry sand falls, the foundry sand will not be adjacent to each other and will be more compact, thereby further improving the uniformity of heating of the foundry sand and effectively improving the efficiency of the foundry sand drying process. At the same time, when the foundry sand falls on the foundry sand below, it will collide with the foundry sand below, thereby dispersing the block foundry sand that is stuck together under the action of the collision, thereby avoiding that some foundry sand is stuck together into blocks after drying, affecting the subsequent use, and effectively improving the quality of the foundry sand.

[0024] Embodiment 2:

[0025] Reference Figure 1-Figure 5 The stirring assembly is basically the same as that of embodiment 1, and furthermore, the stirring plate 202 is arranged at an angle, such as Figure 5 As shown, by setting the stirring plate 202, when the stirring plate 202 rotates, the foundry sand can be lifted to a higher position, so that when the stirring plate 202 is tilted downward, the foundry sand can fall from a higher position, thereby increasing the impact force of the falling foundry sand, so as to better break up the agglomerated foundry sand, and effectively improve the quality of the foundry sand after drying.

[0026] Embodiment 3:

[0027] Reference Figure 1-Figure 5, the foundry sand dryer adopts the stirring component in Example 2, and the upper and lower ends of the heating tank 1 are respectively provided with a feed port and a discharge port, and the feed port and the discharge port are respectively rotatably connected with a first sealing plate 101 and a second sealing plate 103, and a pressure relief port 102 is provided on the first sealing plate 101. When the foundry sand needs to be dried, the first sealing plate 101 can be opened at this time, and then the staff can add the foundry sand into the heating tank 1 through the feed port, and then close the first sealing plate 101, and then start the heating element arranged in the heating tank 1 to heat the foundry sand. At the same time, start the stirring component to stir the foundry sand and lift it up, which can not only increase the contact area between the foundry sand and the internal heat of the heating tank 1, but also make the agglomerated foundry sand break up under the action of free fall, thereby improving the quality of the foundry sand. When the foundry sand is dried, the second sealing plate 103 can be opened at this time, and the foundry sand can be discharged from the heating tank 1 through the discharge port.

[0028] Embodiment 4:

[0029] Reference Figure 1-Figure 5 , casting sand dryer, is basically the same as Example 3, and furthermore: the side of the heating tank 1 away from the motor 201 is designed to be open, and the open end of the heating tank 1 is threadedly connected with a sealing cover 4, and a plug is arranged at one end of the rotating shaft 2 close to the sealing cover 4, and a through port for use with the plug is opened on the sealing cover 4, and the plug is sealed and rotatably connected in the through port, and a square groove 203 is opened at one end of the rotating shaft 2 close to the motor 201, and the output shaft of the motor 201 is designed to be square, and the output shaft of the motor 201 is detachable in the square groove 203. When the stirring plate 202 is damaged and needs to be replaced, the sealing cover 4 can be rotated at this time, and the sealing cover 4 can be removed from the heating tank 1, and then the stirring plate 202 can be taken out of the heating tank 1 through the rotating shaft 2, and the stirring plate 202 can be repaired or replaced, which provides convenience for maintenance personnel. Since a square groove 203 is opened at one end of the rotating shaft 2, and the output shaft of the motor 201 is designed to be square, the motor 201 can smoothly drive the rotating shaft 2 to rotate when in use.

[0030] The first sealing plate 101 is connected to a side of the first sealing plate 101 close to the feed port with a water-absorbing sponge 105. When the heating tank 1 is started to heat and dry the foundry sand, the foundry sand will generate hot air that floats upward when heated. When the hot air contacts the inner wall of the upper end of the heating tank 1, the moisture in the hot air will adhere to the inner wall of the upper end of the heating tank 1 to form water droplets, and then flow downward along the heating tank 1 and enter the foundry sand again, affecting the drying efficiency of the foundry sand. By arranging a water-absorbing sponge 105 at the upper end of the interior of the heating tank 1, when the hot air rises and contacts the water-absorbing sponge 105, the water-absorbing sponge 105 can absorb the moisture in the hot air, and the gas will be discharged from the heating tank 1 through the pressure relief port 102, thereby reducing the amount of moisture attached to the inner wall of the heating tank 1, effectively improving the drying efficiency of the foundry sand, and at the same time, it can also play a blocking role for the foundry sand to prevent part of the foundry sand from being discharged through the pressure relief port.

[0031] Two groups of telescopic hydraulic cylinders 104 are symmetrically arranged at the bottom of the heating tank 1. The telescopic ends of the telescopic hydraulic cylinders 104 are fixedly connected to the bottom of the heating tank 1. Through the arrangement of the telescopic hydraulic cylinders 104, when the foundry sand is dried, the heating tank 1 can be pushed up by the telescopic hydraulic cylinders 104, thereby increasing the space at the bottom of the heating tank 1 so as to open the second sealing plate 103 to collect the foundry sand. When the foundry sand is dried, the heating tank 1 can be driven downward by the telescopic hydraulic cylinders 104, thereby lowering the center of gravity of the heating tank 1 and improving the overall stability of the dryer when it is working.

[0032] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention.

Claims

1. A stirring assembly, characterized in that: The heating tank (1) comprises a rotating shaft (2), wherein the rotating shaft (2) is connected to the heating tank (1) in a transversely rotatable manner, and further comprises: A motor (201) is fixedly connected to one side of the heating tank (1), and an output end of the motor (201) is connected to an end adjacent to the rotating shaft (2); The stirring plates (202) are arranged in a circumferentially equidistant manner in the heating tank (1) and are slidably attached to the inner wall of the heating tank (1). The stirring plates (202) are fixedly connected to the rotating shaft (2) via a connecting rod.

2. The stirring assembly according to claim 1, characterized in that: The stirring plate (202) is arranged in an inclined manner.

3. A foundry sand dryer, using the stirring assembly according to claim 2, characterized in that: The heating tank (1) is provided with a feed inlet and a discharge port at the upper and lower ends, respectively, and the feed inlet and the discharge port are rotatably connected to a first sealing plate (101) and a second sealing plate (103), respectively, and the first sealing plate (101) is provided with a pressure relief port (102).

4. The foundry sand dryer according to claim 3, characterized in that: The side of the heating tank (1) away from the motor (201) is designed to be open, and the open end of the heating tank (1) is threadedly connected to a sealing cover (4). A plug is provided at one end of the rotating shaft (2) close to the sealing cover (4), and a through opening for use with the plug is provided on the sealing cover (4). The plug is sealingly rotatably connected in the through opening. A square groove (203) is provided at one end of the rotating shaft (2) close to the motor (201), and the output shaft of the motor (201) is designed to be square, and the output shaft of the motor (201) is detachable in the square groove (203).

5. The foundry sand dryer according to claim 3, characterized in that: A water-absorbing sponge (105) is connected to one side of the first sealing plate (101) close to the feed inlet.

6. The foundry sand dryer according to claim 3, characterized in that: Two groups of telescopic hydraulic cylinders (104) are symmetrically arranged at the bottom of the heating tank (1), and the telescopic ends of the telescopic hydraulic cylinders (104) are fixedly connected to the bottom of the heating tank (1).

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