Sand reclamation device

Abstract

The utility model discloses a kind of sand reclaiming devices, belong to sand reclaiming technical field, including body assembly, the upper portion of body assembly is provided with feed hopper, conveying cylinder is installed between feed hopper and body assembly, the inside of conveying cylinder is installed with multiple extruding rollers, the lower portion of body assembly is installed with discharge pipe, the lower portion of body assembly and located the position of both sides of discharge pipe are all installed with supporting plate, the lower portion of discharge pipe is provided with screening mobile device, the side of body assembly is installed with drying treatment device;The utility model is through being provided with screening mobile device, so that the device can be through the cooperation of screening box and first filter screen etc. Structure to the sand after processing certain screening classification, to better meet the needs of work, and staff can be moved in need by the position of each brake wheel to device, to improve the working capacity of device.

Description

Technical Field

[0001] This utility model belongs to the field of molding sand recycling technology, and specifically relates to a molding sand recycling device. Background Technology

[0002] Molding sand is a material used for shaping in casting. It is generally composed of foundry sand, molding sand binder, and additives mixed in a specific ratio. Depending on the binder used, molding sand can be classified as clay sand, water glass sand, cement sand, resin sand, etc. Clay sand, water glass sand, and resin sand are the most commonly used.

[0003] Chinese Patent Application No. 202322429389.9 discloses a vibrating screen recovery device for used molding sand, comprising a device body, a sealing cover at the top of the device body, a conveying cylinder extending through the top of the sealing cover, a squeezing roller inside the conveying cylinder driven by a motor, a feed hopper at the top of the conveying cylinder, a filter screen installed inside the device body, a main shaft above the filter screen inside the device body, the main shaft driven by a motor, crushing blades on the outer surface of the main shaft, electromagnetic rollers symmetrically arranged below the filter screen inside the device body, a mounting frame on the inner wall of the device body, a scraper at one end of the mounting frame, and one end of the scraper contacting the electromagnetic rollers. This invention, by setting up a conveying cylinder, squeezing rollers, main shaft, and crushing blades, facilitates secondary crushing of used molding sand, thereby improving the screening and recovery efficiency of used molding sand.

[0004] 1. The aforementioned patent has the problem of inconvenience in screening and moving the processed molding sand, thereby reducing the working capacity of the device; 2. The aforementioned patent has the problem of inconvenience in drying the damp molding sand when needed, thereby reducing the practicality of the device. Utility Model Content

[0005] To address the problems mentioned in the background section, this invention provides a molding sand recovery device with high working capacity and strong practicality.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a molding sand recycling device, comprising a main body assembly, a feeding hopper disposed above the main body assembly, a conveying cylinder installed between the feeding hopper and the main body assembly, a plurality of extrusion rollers installed on the inner side of the conveying cylinder, a discharge pipe installed below the main body assembly, support plates installed below the main body assembly and on both sides of the discharge pipe, a screening moving device disposed below the discharge pipe, and a drying treatment device installed on one side of the main body assembly.

[0007] Preferably, the screening moving device includes a screening box, a first filter screen, a second filter screen, a third filter screen, a moving component, and threaded blocks. The screening box is located below the discharge pipe. The first filter screen is located inside the screening box. The second filter screen is located inside the screening box and below the first filter screen. The third filter screen is located inside the screening box and below the second filter screen. Multiple threaded blocks are threadedly installed on one side of the screening box. The moving component is installed below the screening box.

[0008] Preferably, the screening moving device further includes a vibrator and an elastic rubber frame. Vibrators are installed below the first filter screen, the second filter screen, and the third filter screen. The first filter screen, the second filter screen, and the third filter screen are all connected to the screening box through the elastic rubber frame.

[0009] Preferably, the moving assembly includes a spring pin, a base plate, and brake wheels. The base plate is installed below the screening box, and multiple brake wheels are installed below the base plate. The base plate is connected to the two support plates by two spring pins.

[0010] Preferably, the drying device includes a heating box, a heat-conducting copper plate, and heating rods. The heating box is installed on one side of the main body assembly, the heat-conducting copper plate is installed inside the heating box, and multiple heating rods are installed below the heat-conducting copper plate.

[0011] Preferably, the drying device further includes a motor and a stirring blade. The motor is installed on the side of the heating chamber away from the main body assembly, and the stirring blade is installed on the outside of the motor output end and at a position located on the inside of the heating chamber and the outside of the heat-conducting copper plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, by setting up a screening moving device, enables the device to perform certain screening and classification of the processed molding sand through the cooperation of the screening box and the first filter screen, thereby better meeting the needs of the work. Moreover, the operator can move the position of the device by means of the brake wheels when needed, thereby improving the working capacity of the device.

[0013] 2. By setting up a drying device, this utility model enables the device to dry the damp molding sand when needed through the cooperation of structures such as electric heating rods and heat-conducting copper plates, thereby ensuring the quality of the molding sand and improving the practicality of the device. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model; Figure 2 This is a three-dimensional sectional view of the present invention; Figure 3 This is a perspective sectional view of the screening moving device of this utility model; Figure 4 This is a three-dimensional sectional view of the drying treatment device of this utility model.

[0015] In the diagram: 1. Feed hopper; 2. Extrusion roller; 3. Main body assembly; 4. Discharge pipe; 5. Screening moving device; 51. Screening box; 52. First filter screen; 53. Vibrator; 54. Elastic rubber frame; 55. Second filter screen; 56. Third filter screen; 57. Moving assembly; 571. Spring pin; 572. Base plate; 573. Brake wheel; 58. Threaded block; 6. Support plate; 7. Drying device; 71. Heating box; 72. Motor; 73. Heat-conducting copper plate; 74. Heating rod; 75. Stirring blade; 8. Conveying cylinder. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0017] Please see Figure 1-4 The present invention provides the following technical solution: a molding sand recycling device, including a main body assembly 3, a feeding hopper 1 is provided above the main body assembly 3, a conveying cylinder 8 is installed between the feeding hopper 1 and the main body assembly 3, a plurality of extrusion rollers 2 are installed on the inner side of the conveying cylinder 8, a discharge pipe 4 is installed below the main body assembly 3, support plates 6 are installed below the main body assembly 3 and on both sides of the discharge pipe 4, a screening moving device 5 is provided below the discharge pipe 4, and a drying treatment device 7 is installed on one side of the main body assembly 3.

[0018] Specifically, the screening moving device 5 includes a screening box 51, a first filter screen 52, a second filter screen 55, a third filter screen 56, a moving component 57, and threaded blocks 58. The screening box 51 is located below the discharge pipe 4. The first filter screen 52 is located inside the screening box 51. The second filter screen 55 is located inside the screening box 51 and below the first filter screen 52. The third filter screen 56 is located inside the screening box 51 and below the second filter screen 55. Multiple threaded blocks 58 are threadedly installed on one side of the screening box 51. The moving component 57 is installed below the screening box 51.

[0019] By adopting the above technical solution, the device can perform certain screening and classification of the processed molding sand through the cooperation of structures such as the screening box 51 and the first filter screen 52, thereby better meeting the needs of operation under different conditions.

[0020] Specifically, the screening moving device 5 also includes a vibrator 53 and an elastic rubber frame 54. The vibrator 53 is installed below the first filter screen 52, the second filter screen 55 and the third filter screen 56. The first filter screen 52, the second filter screen 55 and the third filter screen 56 are all connected to the screening box 51 through the elastic rubber frame 54.

[0021] By adopting the above technical solution, the device can drive the first filter screen 52, the second filter screen 55 and the third filter screen 56 to vibrate through each vibrator 53, thereby preventing the occurrence of blockage. The elastic rubber frame 54 can reduce the impact of the vibrator 53 on the surrounding structure through its own elastic deformation.

[0022] Specifically, the moving component 57 includes a spring pin 571, a base plate 572, and brake wheels 573. The base plate 572 is installed below the screening box 51, and multiple brake wheels 573 are installed below the base plate 572. The base plate 572 is connected to the two support plates 6 by two spring pins 571.

[0023] By adopting the above technical solution, the staff can move the device to a certain extent by using each brake wheel 573 when needed, thereby reducing the difficulty of moving the device and alleviating the workload of the staff.

[0024] In this embodiment, when the device is needed for molding sand recycling, the molding sand is poured into the feed hopper 1, and then enters the conveying cylinder 8. The extrusion rollers 2 crush the molding sand, which then falls into the main body assembly 3 for pulverization and iron filings removal. The molding sand then passes through the discharge pipe 4 and falls into the screening box 51 in the screening moving device 5. The first filter screen 52, the second filter screen 55, and the third filter screen 56 screen the molding sand. The vibrators 53 can be activated, driving the first filter screen 52, the second filter screen 55, and the third filter screen 56. The filter screen 56 vibrates to prevent clogging. The elastic rubber frame 54 can reduce the impact of the vibrator 53 on the surrounding structure through its own elastic deformation. After screening, each vibrator 53 is turned off. The two spring pins 571 in the moving assembly 57 are manipulated to separate them from the bottom plate 572. Then the screening box 51 is pushed so that it and the molding sand can move to the required position through the brake wheels 573 under the bottom plate 572. The operator can unscrew each threaded block 58 to take out the molding sand in the screening box 51. After the work is completed, the support plate 6 plays a supporting role. Example 2

[0025] The difference between this embodiment and embodiment 1 is that the drying device 7 includes a heating box 71, a heat-conducting copper plate 73 and heating rods 74. The heating box 71 is installed on one side of the main body assembly 3, the heat-conducting copper plate 73 is installed on the inner side of the heating box 71, and multiple heating rods 74 are installed below the heat-conducting copper plate 73.

[0026] By adopting the above technical solution, the device can perform a certain degree of drying treatment on the moist molding sand when needed through the cooperation of structures such as the electric heating rod 74 and the heat-conducting copper plate 73, thereby ensuring the quality of the molding sand.

[0027] Specifically, the drying device 7 also includes a motor 72 and a stirring blade 75. The motor 72 is installed on the side of the heating box 71 away from the main body assembly 3, and the stirring blade 75 is installed on the outside of the output end of the motor 72 and on the inside of the heating box 71 and the outside of the heat-conducting copper plate 73.

[0028] By adopting the above technical solution, the device can stir the molding sand in the heating box 71 when needed through the cooperation of motor 72 and stirring blade 75, thereby ensuring that the molding sand can be dried evenly in all places and better meeting the needs of the work.

[0029] In this embodiment, when the molding sand is relatively damp, the operator can place the molding sand into the heating box 71 in the drying device 7, start each heating rod 74 and motor 72, and the heat from each heating rod 74 passes through the heat-conducting copper plate 73 to heat the molding sand, thereby evaporating the moisture on the molding sand. The motor 72 drives the stirring blade 75 to rotate, thereby stirring the molding sand, making the heating and drying more uniform. After the molding sand is dried, each heating rod 74 and motor 72 are turned off to prevent the quality of the molding sand from being adversely affected by dampness.

[0030] The structure and principle of the feed hopper 1, the extrusion roller 2, the main body assembly 3 consisting of the device body, controller, sealing cover, cleaning cover, mounting frame, scraper, first baffle plate, filter screen, crushing blade, main shaft, second baffle plate, rubber head, spring and electromagnetic roller, the discharge pipe 4, and the conveying cylinder 8 in this utility model have been disclosed in a vibrating screen recycling device for old molding sand disclosed in Chinese patent application number 202322429389.9. Its working principle is that during operation, the operator starts multiple motors through the controller to drive the extrusion roller and the main shaft to rotate. Then, the operator feeds the agglomerated old molding sand into the conveying cylinder through the feed hopper. First, it is crushed by the extrusion of two adjacent extrusion rollers, causing large agglomerated pieces to break up. Moreover, the distance between two adjacent extrusion rollers inside the conveying cylinder decreases from top to bottom, thereby improving the accuracy of crushing the agglomerated old molding sand, thus completing one crushing operation. Afterwards, it enters the device body and is then processed by the main shaft... Driven by the pulverizing blades, the old molding sand inside undergoes secondary pulverization. After processing, it is then screened through a filter screen. This method is simple to operate and greatly improves the screening efficiency of the old molding sand through two-stage crushing. Secondly, the coordinated use of electromagnetic rollers, mounting frames, scrapers, and the first baffle plate facilitates the removal of iron filings inside the old molding sand after pulverization and filtration. After the old molding sand is filtered through the filter screen, the operator powers on the electromagnetic rollers via the controller. The falling old molding sand then falls onto the surface of the electromagnetic rollers through the first baffle plate. The old molding sand then falls between the second baffle plate and is discharged through the discharge pipe. The iron filings inside are adsorbed onto the surface of the electromagnetic rollers. Simultaneously, as the electromagnetic rollers rotate, the scraper scrapes off the iron filings adsorbed on the surface, which then fall into the main body of the device. Finally, the cleaning cover is opened for cleaning. This method is simple to operate, facilitates the cleaning of iron filings inside the old molding sand, and improves the quality of the old molding sand in subsequent use.

[0031] The structure and principle of the vibrator 53 in this utility model have been disclosed in a concrete mixing device that is easy to clean, disclosed in Chinese patent application number 201821054815.8. Its working principle consists of components such as springs, mass blocks, and motors. When the springs or mass blocks are subjected to external forces from the motor, they will undergo elastic deformation or displacement, thereby generating vibration.

[0032] The working principle and usage process of this utility model are as follows: When the device is needed for molding sand recycling, the molding sand is poured into the feed hopper 1, and then enters the conveying cylinder 8. The extrusion rollers 2 crush the molding sand, and then the molding sand falls into the main body assembly 3 for crushing and iron filings removal. Then, the molding sand passes through the discharge pipe 4 and falls into the screening box 51 in the screening moving device 5. The first filter screen 52, the second filter screen 55, and the third filter screen 56 screen the molding sand. The vibrators 53 can be activated, and the vibrators 53 drive the first filter screen 52, the second filter screen 55, and the third filter screen 56 to vibrate, thereby preventing them from clogging. The elastic rubber frame 54 can reduce the impact of the vibrators 53 on the surrounding structure through its own elastic deformation. After screening is completed, the vibrators 53 are turned off, and the two springs in the moving assembly 57 are operated. Pin 571 to separate it from the base plate 572, then push the screening box 51 so that it and the molding sand can move to the required position through the brake wheels 573 under the base plate 572. The operator can unscrew the threaded blocks 58 to take out the molding sand in the screening box 51. After the work is completed, the support plate 6 has played a supporting role. When the molding sand is relatively wet, the operator can put the molding sand into the heating box 71 in the drying treatment device 7, start the heating rods 74 and the motor 72. The heat on the heating rods 74 passes through the heat-conducting copper plate 73 to heat the molding sand, thereby evaporating the moisture on the molding sand. The motor 72 drives the stirring blades 75 to rotate, thereby agitating the molding sand, making the heating and drying more uniform. After the molding sand is dried, turn off the heating rods 74 and the motor 72 to prevent the quality of the molding sand from being adversely affected by moisture.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A molding sand recycling device, comprising a main body assembly, a feed hopper disposed above the main body assembly, a conveying cylinder installed between the feed hopper and the main body assembly, a plurality of extrusion rollers installed inside the conveying cylinder, a discharge pipe installed below the main body assembly, and support plates installed below the main body assembly and on both sides of the discharge pipe, characterized in that: A screening moving device is installed below the discharge pipe, and a drying device is installed on one side of the main body component. The screening moving device includes a screening box, a first filter screen, a second filter screen, a third filter screen, a moving component, and threaded blocks. The screening box is located below the discharge pipe. The first filter screen is located inside the screening box. The second filter screen is located inside the screening box and below the first filter screen. The third filter screen is located inside the screening box and below the second filter screen. Multiple threaded blocks are threadedly installed on one side of the screening box. The moving component is installed below the screening box. The drying device includes a heating box, a heat-conducting copper plate, and heating rods. The heating box is installed on one side of the main body assembly, the heat-conducting copper plate is installed inside the heating box, and multiple heating rods are installed below the heat-conducting copper plate.

2. A sand reclamation apparatus according to claim 1, characterised in that: The screening moving device also includes a vibrator and an elastic rubber frame. Vibrators are installed below the first, second, and third filter screens, and the first, second, and third filter screens are all connected to the screening box through the elastic rubber frame.

3. A sand reclamation apparatus according to claim 1, wherein: The moving assembly includes a spring pin, a base plate, and brake wheels. The base plate is installed below the screening box, and multiple brake wheels are installed below the base plate. The base plate is connected to two support plates by two spring pins.

4. The molding sand recovery device according to claim 1, characterized in that: The drying device also includes a motor and a stirring blade. The motor is installed on the side of the heating box away from the main body assembly, and the stirring blade is installed on the outside of the motor output end and at a position inside the heating box and outside the heat-conducting copper plate.

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