Production device of resin sand for casting and use method of production device

Abstract

The invention relates to the technical field of resin sand manufacturing, in particular to a casting resin sand production device and a using method thereof.The casting resin sand production device comprises a device positioning assembly, a processing and transporting assembly is installed on one side of the device positioning assembly, and a stirring assembly is installed at the bottom of the processing and transporting assembly; and a material vibration assembly is mounted at the bottom of the stirring assembly. When a stirring blade vibrates up and down along the joint of a stirring roller through a first spring, the stirring blade extrudes an inclined sliding push plate to deflect along an annular positioning block, and the inclined sliding push plate drives a plurality of inclined sliding push plates to move together through the flexibility of a telescopic positioning ring and a thin telescopic ring; the inclined sliding push plate pushes back and forth along the side wall of the stirring blade, so that the raw materials on the side wall of the stirring blade are pushed back to the original place, the curing of the raw materials is reduced, and the stirring blade is prevented from interfering with the next batch of raw materials.

Description

Technical Field

[0001] The invention relates to the technical field of resin sand production, and in particular to a production device for resin sand for casting and a use method thereof. Background Art

[0002] Resin sand has good formability and can accurately replicate the shape and details of the mold. This allows it to be used to manufacture castings that require extremely high dimensional accuracy and surface quality, such as pump bodies, automobile engine cylinder blocks, cylinder heads, precision mechanical parts, etc.

[0003] When processing resin sand, the selected sand particles need to be placed in a sand mixer, and appropriate amounts of resin binder and curing agent need to be added. The sand mixer evenly wraps the resin and curing agent on the surface of the sand particles by stirring and rolling. The time and speed of sand mixing should be determined according to the type of sand mixer and the formula of resin sand. Generally, it is necessary to ensure that the resin and curing agent are fully mixed with the sand particles to avoid excessive or insufficient local resin. At the same time, attention should be paid to the ambient temperature and humidity during processing, which have a great influence on the mixing of resin sand.

[0004] The sand mixer uses the rotation of the mixing blades or other mixing methods to evenly coat the resin binder and curing agent on the surface of each sand grain, ensuring consistent performance of the resin sand. This is very important for the quality stability of molds and cores during the casting process, because uneven mixing may cause some sand grains to be loosely bonded, affecting the strength and overall performance of the mold.

[0005] However, during the processing of resin sand, the resin components in it may adhere to the inside of the equipment during the mixing process. Especially after the mixing device stops working, if the residual resin sand is not cleaned up in time, it will solidify on the surface and internal corners of the equipment. For example, on the upper and lower surfaces of the stirring blade, resin sand is easy to accumulate and solidify. Cleaning these solidified resin sands is very difficult and requires the use of special tools and chemical reagents. The cleaning process is time-consuming.

[0006] Therefore, the present application proposes a production device for resin sand for casting and a method for using the same. Summary of the invention

[0007] The purpose of the present invention is to solve the problem that the resin components of resin sand in the background technology may be adhered to the inside of the equipment during the mixing process. In particular, after the mixing device stops working, if the residual resin sand is not cleaned in time, it will solidify on the surface and internal corners of the equipment. A resin sand for casting and a preparation method thereof are proposed.

[0008] In a first aspect, the present application provides a production device for resin sand for casting: It comprises a device positioning component, a processing and transporting component is installed on one side of the device positioning component, a stirring component is installed at the bottom of the processing and transporting component, and a material vibration component is installed at the bottom of the stirring component; The device positioning component includes a heat preservation chamber, the stirring component includes an auxiliary processing chamber fixedly installed on the inner wall of the heat preservation chamber, a stirring roller is slidably installed inside the auxiliary processing chamber, a plurality of stirring blades are fixedly installed on the outer side of the stirring roller, two inclined sliding push plates are slidably installed between every two stirring blades, an annular positioning block is fixedly installed on the outer side of the stirring roller, the inclined sliding push plate is hinged on the outer side of the annular positioning block, and an auxiliary spring is fixedly installed at the connection between the inclined sliding push plate and the annular positioning block, a telescopic positioning ring is fixedly installed on the outer side of the inclined sliding push plate, a thin telescopic ring is slidably installed on the outer side of the telescopic positioning ring, the thin telescopic ring is slidably installed on the side of the stirring blade, and an arc spring is fixedly installed between the telescopic positioning ring and the thin telescopic ring; A plurality of arc-shaped friction blocks are arranged between every two groups of stirring blades, and a fixed block is rotatably mounted on one side of the arc-shaped friction block away from the stirring blades, and the fixed block is fixedly mounted on the inner wall of the auxiliary processing chamber.

[0009] Optionally, a second spring is fixedly installed inside the fixed block via a fixing ring, and the second spring is fixedly installed on the outside of the spring rod at a side away from the fixed block. A spring rod is fixedly installed inside the fixed block, and the spring rod is attached to one side of the arc-shaped friction block.

[0010] Optionally, the device positioning assembly further comprises a hollow positioning frame fixedly mounted on the outer side of the heat preservation chamber, a positioning plate is fixedly mounted on one side of the hollow positioning frame, and a base is fixedly mounted on the bottom of the positioning plate.

[0011] Optionally, the processing and transporting assembly includes a threaded rod rotatably mounted on one side of the positioning plate, a second forward and reverse motor is fixedly mounted on the bottom of the threaded rod, and a guide plate is fixedly mounted on the top of the positioning plate.

[0012] Optionally, the outer side of the threaded rod is threadably connected to two holding rods, the two holding rods are slidably installed inside the guide plate, a first forward and reverse motor is fixedly installed at the bottom of one of the holding rods, and the stirring roller is fixedly installed on the output shaft of the first forward and reverse motor.

[0013] Optionally, a blocking cover is fixedly mounted on one side of the holding rod on the other side, and the blocking cover is slidably mounted inside the auxiliary processing cavity.

[0014] Optionally, the material vibration assembly includes a positioning box fixedly mounted on one side of the base, an auxiliary long rod being installed inside the positioning box through a third forward and reverse motor, an eccentric wheel being fixedly mounted on one side of the auxiliary long rod, a supporting connecting rod being rotatably mounted on the side of the eccentric wheel away from the auxiliary long rod, two eccentric wheels being rotatably mounted on one side of the positioning box on the side of the supporting connecting rod away from the auxiliary long rod through another eccentric wheel.

[0015] Optionally, a locking support rod is fixedly installed on the top of the support connecting rod, a supporting plate is fixedly installed on the top of the locking support rod, the supporting plate is slidably installed inside the auxiliary processing chamber, two third springs are fixedly installed on the bottom of the supporting plate, a hollow positioning tube is fixedly installed on the bottom of the third spring, and the hollow positioning tube is fixedly installed on the top of the positioning box.

[0016] In a second aspect, the application provides a method for using a production device for resin sand for casting, comprising the following steps: S1: First, the threaded rod is driven to rotate in the forward direction by the second forward and reverse motor, and then the raw material, the resin binder and the curing agent are put into the auxiliary processing cavity from the gap between the auxiliary processing cavity and the blocking cover; S2: Then the second forward and reverse motor drives the threaded rod to rotate in the opposite direction, and the two clamping rods drive the blocking cover to fit on the top of the auxiliary processing chamber, so that the raw material, the auxiliary processing chamber and the tray are sealed; S3: The first forward and reverse motor drives the stirring roller to rotate, and the stirring roller drives the plurality of stirring blades to fully stir the interior of the auxiliary processing chamber; S4: Due to the centrifugal force generated by the rotation of the stirring roller, the raw materials are pushed toward the arc-shaped friction block. If the raw materials are excessively accumulated at the positions of the arc-shaped friction block and the stirring blade, the raw materials, the stirring blade and the arc-shaped friction block generate friction, and the upper and lower parts of the raw materials are separated by friction at an accelerated speed. S5: The third forward and reverse motor drives the auxiliary long rod to rotate, and the auxiliary long rod drives the eccentric wheel to rotate. Since the eccentric wheel is in an eccentric state, the two eccentric wheels drive the supporting connecting rod to rotate along the clamping of the two eccentric wheels, so that the supporting connecting rod swings up and down, pushing the raw materials back to the mixing assembly for processing; S6: Prepare the mold according to actual needs, fill the mixed resin sand into the mold, perform mechanical shaping, and then complete the configuration.

[0017] In summary, the present application includes at least one of the following beneficial technical effects: 1. When the stirring blade vibrates up and down along the connection of the stirring roller through the first spring, the stirring blade squeezes the inclined push plate and deflects along the annular positioning block. The inclined push plate drives multiple inclined push plates to move together through the telescopic positioning ring and the thin telescopic ring, so that the inclined push plate pushes back and forth along the side wall of the stirring blade, and then pushes the raw materials on the side wall of the stirring blade back to the original position, reducing the solidification of the raw materials and preventing the stirring blade from interfering with the next batch of raw materials; 2. If the raw materials are excessively accumulated at the positions of the arc-shaped friction block and the stirring blade, the raw materials, the stirring blade and the arc-shaped friction block generate friction, and the upper and lower parts of the raw materials are separated by friction, thereby reducing the accumulation of raw materials. The arc-shaped friction block drives the second spring to rotate and compress along the fixed block. The arc-shaped friction block rotates to the original position under the elastic force of the spring rod and the torsion of the second spring, and then the arc-shaped friction block shakes off the raw materials on the surface to avoid residue. In the process of rotation and vibration of the arc-shaped friction block, it hits the surrounding raw materials, thereby better preventing the accumulation of raw materials and failing to be evenly wrapped with the resin binder and curing agent; 3. The supporting connecting rod drives the engaging supporting rod and the supporting plate to move up and down along the auxiliary processing chamber. During the processing in the auxiliary processing chamber, the raw materials are accumulated on the supporting plate, that is, the bottom of the processing area. Due to the swing of the supporting plate and the elastic force vibration of the third spring, the raw materials are prevented from solidifying after being heated for a long time at the bottom of the equipment, reducing the cleaning work. At the same time, the supporting plate pushes the raw materials at the bottom to the processing area of ​​the stirring blade, thereby improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of a resin sand production device for casting according to the present invention is provided; Figure 2 It is a structural schematic diagram of a threaded rod; Figure 3 It is a structural schematic diagram of a tray; Figure 4 It is a structural schematic diagram of a hollow positioning tube; Figure 5 is a schematic diagram of the structure of a first forward and reverse motor; Figure 6 for Figure 5 Enlarged view of the middle A area; Figure 7 It is a structural schematic diagram of an arc-shaped friction block; Figure 8 It is a schematic diagram of the structure of the spring rod.

[0019] Reference numerals: 1. device positioning assembly; 101. base; 102. positioning plate; 103. heat preservation chamber; 104. hollow positioning frame; 2. processing and transportation assembly; 201. threaded rod; 202. guide plate; 203. clamping rod; 204. first forward and reverse motor; 205. blocking cover; 3. stirring assembly; 301. auxiliary processing chamber; 302. stirring blade; 303. stirring roller; 304. first spring; 305. tilting Inclined sliding push plate; 306, annular positioning block; 307, telescopic positioning ring; 308, thin telescopic ring; 309, arc-shaped friction block; 310, second spring; 311, fixed block; 312, spring rod; 4, material vibration assembly; 401, positioning box; 402, tray; 403, third spring; 404, hollow positioning tube; 405, engaging support rod; 406, supporting connecting rod; 407, eccentric wheel; 408, auxiliary long rod. DETAILED DESCRIPTION

[0020] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0021] The present invention provides a production device for resin sand for casting, such as Figure 1-Figure 2 As shown, it includes a device positioning component 1, a processing and transporting component 2 is installed on one side of the device positioning component 1, a stirring component 3 is installed at the bottom of the processing and transporting component 2, and a material vibration component 4 is installed at the bottom of the stirring component 3; The device positioning component 1 also includes a hollow positioning frame 104 fixedly installed on the outside of the insulation chamber 103, a positioning plate 102 is fixedly installed on one side of the hollow positioning frame 104, a base 101 is fixedly installed on the bottom of the positioning plate 102, the processing and transportation component 2 includes a threaded rod 201 rotatably installed on one side of the positioning plate 102, a second forward and reverse motor is fixedly installed on the bottom of the threaded rod 201, a guide plate 202 is fixedly installed on the top of the positioning plate 102, the outer side of the threaded rod 201 is threadedly connected to two holding rods 203, the two holding rods 203 are slidably installed inside the guide plate 202, a first forward and reverse motor 204 is fixedly installed on the bottom of one holding rod 203, a stirring roller 303 is fixedly installed on the output shaft of the first forward and reverse motor 204, and the other side holding rod 203 is fixedly installed on the output shaft of the first forward and reverse motor 204. A blocking cover 205 is fixedly installed on one side of the holding rod 203, and the blocking cover 205 is slidably installed inside the auxiliary processing chamber 301. At the initial stage of preparation, the staff first uses the second forward and reverse motor to drive the threaded rod 201 to rotate forward, and the threaded rod 201 uses the threaded guide to cause the two holding rods 203 to drive the first forward and reverse motor 204 and the blocking cover 205 to move upward along the guide plate 202. The staff then puts the raw material into the auxiliary processing chamber 301 from the gap between the auxiliary processing chamber 301 and the blocking cover 205, and then the second forward and reverse motor mobilizes the threaded rod 201 to rotate in the opposite direction, and the two holding rods 203 drive the blocking cover 205 to fit on the top of the auxiliary processing chamber 301, so that the raw material, the auxiliary processing chamber 301, and the tray 402 are sealed.

[0022] like Figure 5-Figure 7 As shown, the device positioning component 1 includes a heat preservation chamber 103, and the stirring component 3 includes an auxiliary processing chamber 301 fixedly installed on the inner wall of the heat preservation chamber 103. A stirring roller 303 is slidably installed inside the auxiliary processing chamber 301. A plurality of stirring blades 302 arranged in an annular state about the outer surface of the stirring roller 303 are fixedly installed on the outer side of the stirring roller 303. Two inclined sliding push plates 305 are slidably installed between every two stirring blades 302. An annular positioning block 306 is fixedly installed on the outer side of the stirring roller 303. The inclined sliding push plate 305 is hinged on the outer side of the annular positioning block 306, and an auxiliary spring is fixedly installed at the connection between the inclined sliding push plate 305 and the annular positioning block 306. A telescopic positioning ring 307 is fixedly installed on the outer side of the inclined sliding push plate 305. A thin telescopic ring 308 is slidably installed on the outer side of the telescopic positioning ring 307. The thin telescopic ring 308 is slidably installed on the side of the stirring blade 302, and an arc spring is fixedly installed between the telescopic positioning ring 307 and the thin telescopic ring 308. A plurality of arc-shaped friction blocks 309 are arranged between each two groups of stirring blades 302. A fixed block 311 is rotatably installed on the side of the arc-shaped friction block 309 away from the stirring blade 302. The fixed block 311 is fixedly installed on the inner wall of the auxiliary processing chamber 301. The first forward and reverse motor 204 drives the stirring roller 303 to rotate. The stirring roller 303 drives the plurality of stirring blades 302 to fully stir the interior of the auxiliary processing chamber 301. In this process, if the material is accumulated between the two stirring blades 302, the centrifugal force generated when the stirring roller 303 rotates causes the raw material to be close to the auxiliary processing chamber 301. The position of the inner wall, therefore, when the stirring blade 302 vibrates up and down along the connection with the stirring roller 303 through the first spring 304, the stirring blade 302 squeezes the inclined sliding plate 305 and deflects along the annular positioning block 306, and the inclined sliding plate 305 drives multiple inclined sliding plates 305 to move together through the telescopic positioning ring 307 and the thin telescopic ring 308, causing the inclined sliding plate 305 to push back and forth along the side wall of the stirring blade 302, and then pushes the raw materials on the side wall of the stirring blade 302 back to its original position, thereby reducing the solidification of the raw materials and avoiding the stirring blade from interfering with the next batch of raw materials.

[0023] like Figure 5-Figure 8 As shown, a second spring 310 is fixedly installed inside the fixed block 311 through a fixed ring, and the side of the second spring 310 away from the fixed block 311 is fixedly installed on the outside of the spring rod 312. A spring rod 312 is fixedly installed inside the fixed block 311, and the spring rod 312 is attached to one side of the arc-shaped friction block 309. During the process of mixing the raw materials with the stirring blade 302 and the inclined sliding plate 305, the centrifugal force generated by the rotation of the stirring roller 303 causes the raw materials to be pushed toward the arc-shaped friction block 309. If the raw materials are excessively accumulated at the position of the arc-shaped friction block 309 and the stirring blade 302, the raw materials and the stirring blade 302 and the arc-shaped friction block 309 will be blocked. The friction block 309 generates friction, which accelerates the separation of the upper and lower parts of the raw material by friction, thereby reducing the accumulation of raw materials, and the arc-shaped friction block 309 drives the second spring 310 to rotate and compress along the fixed block 311. When the raw material is not in contact with the arc-shaped friction block 309 or the friction force becomes smaller, the arc-shaped friction block 309 rotates to its original position under the elastic force of the spring rod 312 and the torsion of the second spring 310, and then the arc-shaped friction block 309 shakes off the raw materials on the surface to avoid residue, and the arc-shaped friction block 309 hits the surrounding raw materials during the rotation and vibration process, thereby better preventing the raw materials from accumulating and being unable to be evenly wrapped with the resin binder and curing agent.

[0024] In this embodiment, Figure 1-Figure 4As shown, the material vibration assembly 4 includes a positioning box 401 fixedly mounted on one side of the base 101, an auxiliary long rod 408 is installed inside the positioning box 401 through a third forward and reverse motor, an eccentric wheel 407 is fixedly mounted on one side of the auxiliary long rod 408, a support connecting rod 406 is rotatably mounted on the side of the eccentric wheel 407 away from the auxiliary long rod 408, there are two eccentric wheels 407, a side of the support connecting rod 406 away from the auxiliary long rod 408 is rotatably mounted on one side of the positioning box 401 through another eccentric wheel 407, a clamping support rod 405 is fixedly mounted on the top of the support connecting rod 406, a supporting plate 402 is fixedly mounted on the top of the clamping support rod 405, the supporting plate 402 is slidably mounted inside the auxiliary processing chamber 301, two third springs 403 are fixedly mounted on the bottom of the supporting plate 402, a hollow positioning tube 404 is fixedly mounted on the bottom of the third spring 403, and a hollow The positioning tube 404 is fixedly installed on the top of the positioning box 401, and the third forward and reverse motor drives the auxiliary long rod 408 to rotate, and the auxiliary long rod 408 drives the eccentric wheel 407 to rotate. Since the eccentric wheel 407 is in an eccentric state, the two eccentric wheels 407 drive the supporting connecting rod 406 to rotate along the clamping of the two eccentric wheels 407 when rotating, and the supporting connecting rod 406 therefore swings up and down, and the supporting connecting rod 406 drives the engaging supporting rod 405 and the supporting plate 402 to move up and down along the auxiliary processing chamber 301. During the processing in the auxiliary processing chamber 301, the materials accumulated on the supporting plate 402, that is, the bottom position of the processing area, are vibrated due to the swing of the supporting plate 402 and the elastic force of the third spring 403, thereby avoiding the raw materials from being solidified after being heated at the bottom of the equipment for a long time, reducing the cleaning work, and at the same time, the supporting plate 402 pushes the raw materials at the bottom to the processing interval of the stirring blade 302, thereby improving the processing efficiency.

[0025] A method for using a production device for resin sand for casting, comprising the following steps: S1: The staff first uses the second forward and reverse motor to drive the threaded rod 201 to rotate forward, and then the staff puts the raw materials, resin binder and curing agent into the auxiliary processing chamber 301 from the gap between the auxiliary processing chamber 301 and the blocking cover 205; S2: Then the second forward and reverse motor drives the threaded rod 201 to rotate in the opposite direction, and the two holding rods 203 drive the blocking cover 205 to fit on the top of the auxiliary processing chamber 301, so that the raw material, the auxiliary processing chamber 301 and the tray 402 are sealed; S3: the first forward and reverse motor 204 drives the stirring roller 303 to rotate, and the stirring roller 303 drives the plurality of stirring blades 302 to fully stir the interior of the auxiliary processing chamber 301; S4: Due to the centrifugal force generated by the rotation of the stirring roller 303, the raw materials are pushed toward the arc-shaped friction block 309. If the raw materials are excessively accumulated at the positions of the arc-shaped friction block 309 and the stirring blade 302, the raw materials generate friction with the stirring blade 302 and the arc-shaped friction block 309, and the upper and lower parts of the raw materials are separated by friction. S5: The third forward and reverse motor drives the auxiliary long rod 408 to rotate, and the auxiliary long rod 408 drives the eccentric wheel 407 to rotate. Since the eccentric wheel 407 is in an eccentric state, the two eccentric wheels 407 drive the supporting connecting rod 406 to rotate along the clamping of the two eccentric wheels 407, so that the supporting connecting rod 406 swings up and down, pushing the raw material back to the stirring assembly 3 for processing; S6: Prepare the mold according to actual needs, fill the mixed resin sand into the mold, perform mechanical shaping, and then complete the configuration.

[0026] The above specific embodiments are only several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A production device for resin sand for casting, characterized in that: It comprises a device positioning component (1), a processing and transporting component (2) is installed on one side of the device positioning component (1), a stirring component (3) is installed at the bottom of the processing and transporting component (2), and a material vibration component (4) is installed at the bottom of the stirring component (3); The device positioning component (1) comprises a heat preservation chamber (103), the stirring component (3) comprises an auxiliary processing chamber (301) fixedly mounted on the inner wall of the heat preservation chamber (103), a stirring roller (303) being slidably mounted inside the auxiliary processing chamber (301), a plurality of groups of stirring blades (302) being fixedly mounted on the outer side of the stirring roller (303), two inclined sliding push plates (305) being slidably mounted between every two stirring blades (302), an annular positioning block (306) being fixedly mounted on the outer side of the stirring roller (303), and the stirring roller (303) being fixedly mounted with a plurality of groups of stirring blades (302). The inclined sliding push plate (305) is hinged on the outside of the annular positioning block (306), and an auxiliary spring is fixedly installed at the connection between the inclined sliding push plate (305) and the annular positioning block (306). A telescopic positioning ring (307) is fixedly installed on the outside of the inclined sliding push plate (305), and a thin telescopic ring (308) is slidably installed on the outside of the telescopic positioning ring (307). The thin telescopic ring (308) is slidably installed on the side of the stirring blade (302), and an arc spring is fixedly installed between the telescopic positioning ring (307) and the thin telescopic ring (308); A plurality of arc-shaped friction blocks (309) are arranged between every two groups of stirring blades (302); a fixed block (311) is rotatably mounted on a side of the arc-shaped friction block (309) away from the stirring blades (302); and the fixed block (311) is fixedly mounted on the inner wall of the auxiliary processing chamber (301).

2. The production device for resin sand for casting according to claim 1, characterized in that: A second spring (310) is fixedly mounted inside the fixed block (311) via a fixing ring; a side of the second spring (310) away from the fixed block (311) is fixedly mounted on the outside of a spring rod (312); a spring rod (312) is fixedly mounted inside the fixed block (311); and the spring rod (312) is fitted onto one side of the arc-shaped friction block (309).

3. The production device for resin sand for casting according to claim 2, characterized in that: The device positioning assembly (1) further comprises a hollow positioning frame (104) fixedly mounted on the outside of the heat preservation chamber (103), a positioning plate (102) fixedly mounted on one side of the hollow positioning frame (104), and a base (101) fixedly mounted on the bottom of the positioning plate (102).

4. The production device for resin sand for casting according to claim 3, characterized in that: The processing and transporting assembly (2) comprises a threaded rod (201) rotatably mounted on one side of a positioning plate (102), a second forward and reverse motor being fixedly mounted on the bottom of the threaded rod (201), and a guide plate (202) being fixedly mounted on the top of the positioning plate (102).

5. The production device for resin sand for casting according to claim 4, characterized in that: The outer side of the threaded rod (201) is threadedly connected to two holding rods (203), the two holding rods (203) are slidably mounted inside the guide plate (202), a first forward and reverse motor (204) is fixedly mounted on the bottom of one of the holding rods (203), and the stirring roller (303) is fixedly mounted on the output shaft of the first forward and reverse motor (204).

6. The production device for resin sand for casting according to claim 5, characterized in that: A blocking cover (205) is fixedly mounted on one side of the other holding rod (203), and the blocking cover (205) is slidably mounted inside the auxiliary processing chamber (301).

7. The production device of resin sand for casting according to claim 6, characterized in that: The material vibration assembly (4) comprises a positioning box (401) fixedly mounted on one side of a base (101); an auxiliary long rod (408) is mounted inside the positioning box (401) via a third forward and reverse motor; an eccentric wheel (407) is fixedly mounted on one side of the auxiliary long rod (408); a support connecting rod (406) is rotatably mounted on the side of the eccentric wheel (407) away from the auxiliary long rod (408); the number of the eccentric wheels (407) is two; and a side of the support connecting rod (406) away from the auxiliary long rod (408) is rotatably mounted on one side of the positioning box (401) via another eccentric wheel (407).

8. The production device of resin sand for casting according to claim 7, characterized in that: A locking support rod (405) is fixedly mounted on the top of the support connecting rod (406), a holding tray (402) is fixedly mounted on the top of the locking support rod (405), the holding tray (402) is slidably mounted inside the auxiliary processing chamber (301), two third springs (403) are fixedly mounted on the bottom of the holding tray (402), a hollow positioning tube (404) is fixedly mounted on the bottom of the third spring (403), and the hollow positioning tube (404) is fixedly mounted on the top of the positioning box (401).

9. A method for using a production device for resin sand for casting, characterized in that: The production device of resin sand for casting as claimed in claim 8 comprises the following steps: S1: first, using the second forward and reverse motor to drive the threaded rod (201) to rotate in the forward direction, and then putting the raw material, the resin binder and the curing agent into the auxiliary processing cavity (301) from the gap between the auxiliary processing cavity (301) and the blocking cover (205); S2: Then, the second forward and reverse motor drives the threaded rod (201) to rotate in the opposite direction, and the two holding rods (203) drive the blocking cover (205) to fit on the top of the auxiliary processing chamber (301), so as to form a sealed state between the raw material, the auxiliary processing chamber (301) and the tray (402); S3: the first forward and reverse motor (204) drives the stirring roller (303) to rotate, and the stirring roller (303) drives the plurality of stirring blades (302) to fully stir the interior of the auxiliary processing chamber (301); S4: Due to the centrifugal force generated by the rotation of the stirring roller (303), the raw materials are pushed toward the arc-shaped friction block (309). If the raw materials are excessively accumulated at the positions of the arc-shaped friction block (309) and the stirring blade (302), friction is generated between the raw materials, the stirring blade (302) and the arc-shaped friction block (309), and the upper and lower parts of the raw materials are separated by friction. S5: the third forward and reverse motor drives the auxiliary long rod (408) to rotate, and the auxiliary long rod (408) drives the eccentric wheel (407) to rotate. Since the eccentric wheel (407) is in an eccentric state, the two eccentric wheels (407) drive the supporting connecting rod (406) to rotate along the clamping of the two eccentric wheels (407), so that the supporting connecting rod (406) swings up and down, pushing the raw material back to the stirring assembly (3) for processing; S6: Prepare the mold according to actual needs, fill the mixed resin sand into the mold, perform mechanical shaping, and then complete the configuration.

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