Resin sand mixer facilitating uniform sand mixing

By designing a first and second feeding tank in the resin sand mixer and using a hydraulic cylinder to control the feeding, combined with the design of multiple mixing paddles, the problem of uneven mixing of resin sand was solved, and uniform sand mixing and uniform hardening were achieved.

CN224101769UActive Publication Date: 2026-04-10CANGZHOU BOHAI SANHE PRECISION MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-30
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Existing resin sand mixers are not convenient for adding curing agents and resins during the mixing process, resulting in uneven mixing of sand, curing agents, and resins, and thus uneven hardening of the resin sand.

Method used

A resin sand mixer designed for easy and uniform mixing is used. It employs a first and second feeding tank on the cylinder. The tilting of the feeding tank is controlled by a hydraulic cylinder to add curing agent and resin in stages. The mixture is then stirred by the cooperation of various agitators to achieve uniform mixing.

Benefits of technology

This process achieves uniform mixing of sand, hardener, and resin, ensuring uniform hardening of the resin sand and improving the sand mixing effect.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224101769U_ABST
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Abstract

The utility model discloses a resin sand mixer convenient for uniformly mixing sand, which belongs to the technical field of sand mixers and comprises a rack, a rotatable barrel arranged above the rack, a first hydraulic oil cylinder arranged on the left side of the barrel, a driving motor arranged on the top surface of the barrel and a stirring mechanism arranged in the barrel. A feeding hopper is further arranged on the top face of the barrel, a discharging mechanism is arranged at the position, close to the bottom, of the right side of the barrel, a first feeding tank is arranged on the upper left portion of the barrel, a second hydraulic oil cylinder is arranged on the left side of the first feeding tank, a second feeding tank is arranged on the right side of the first feeding tank, and a first discharging hopper and a second discharging hopper are sequentially arranged above the feeding hopper. The first discharging hopper is communicated with the first feeding tank, and the second discharging hopper is communicated with the second feeding tank. In the stirring process, the second hydraulic oil cylinder can drive the first feeding tank and the second feeding tank to incline towards the right side, a curing agent and resin are added into the barrel body, sand, the curing agent and the resin are uniformly stirred, and uniform sand mixing is realized.
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Description

TECHNICAL FIELD

[0001] The utility model relates to sand mixer technical field especially, it relates to a resin sand mixer convenient to even sand mixing. BACKGROUND

[0002] Resin sand is a kind of foundry sand, including sand, curing agent and resin, sand, curing agent and resin are mixed, sand and curing agent can be wrapped in the outside of sand, get resin sand, then resin sand is injected into mould, waits for resin sand self-hardening, heating or atomization and makes it solidify, and resin sand mixer is mainly used for mixing sand, it will be mixed to sand while adding curing agent and resin.But the resin sand mixer of existing generally is directly mixed sand, curing agent and resin are added to sand mixing barrel once, it is inconvenient to add curing agent and resin in the process of stirring, lead to sand, curing agent and resin are not stirred evenly, to lead to the uneven hardening of resin sand. SUMMARY

[0003] The utility model provides a resin sand mixer convenient to even sand mixing, solve the problem that the resin sand mixer of existing is inconvenient to add curing agent and resin in the process of stirring, lead to sand, curing agent and resin are not stirred evenly.

[0004] To solve the above technical problem, the utility model adopts the following technical scheme:

[0005] The utility model relates to a resin sand mixer convenient to even sand mixing, including frame, the upper of frame is provided with rotatable barrel, the left side of barrel is provided with first hydraulic oil jar for driving the rotation of barrel, the top of barrel is provided with drive motor, the inside of barrel is provided with stirring mechanism with drive motor is connected, the top of barrel is also provided with feed hopper, the right side of barrel is close to the position of bottom and is provided with discharge mechanism, the left top of barrel is provided with first feeding tank, the left side of first feeding tank is provided with second hydraulic oil jar for driving the rotation of first feeding tank, the right side of first feeding tank is provided with second feeding tank, the top of feed hopper is sequentially provided with first discharge hopper and second discharge hopper, first discharge hopper is communicated with first feeding tank, second discharge hopper is communicated with second feeding tank.

[0006] Further, the front and back sides of the barrel are rotatably connected to the frame by first pivot shafts.

[0007] Further, the stirring mechanism comprises a connecting shaft connected with the output shaft of the driving motor, and a mounting frame is arranged at the bottom end of the connecting shaft, two first stirring paddles, a second stirring paddle and a third stirring paddle are arranged on the mounting frame, the two first stirring paddles are arranged at the two ends of the mounting frame, and the second stirring paddle and the third stirring paddle are connected with the two side faces of the mounting frame through connecting rods respectively.

[0008] Further, the two first stirring paddles are oppositely directed.

[0009] Further, the distance between the second stirring paddle and the mounting frame is greater than the distance between the third stirring paddle and the mounting frame.

[0010] Further, the discharging mechanism comprises a baffle arranged outside the discharging opening of the barrel, limit frames are arranged on the front and back sides of the discharging opening, limit sliding grooves matched with the baffle are arranged in the limit frames, the baffle slides up and down along the limit sliding grooves, and an operating frame is arranged outside the baffle.

[0011] Further, the operating frame comprises a first frame body and a second frame body, the top of the first frame body is movably arranged on the outer wall of the barrel, the bottom of the first frame body is provided with an operating rod, the bottom of the second frame body is movably arranged on the baffle, and the top of the second frame body is movably arranged on the first frame body.

[0012] Further, the front sides of the two first feeding tanks are rotationally connected with the rack through second rotating shafts.

[0013] Further, the right side of the rack is provided with a material guide groove.

[0014] Compared with the prior art, the beneficial technical effects of the utility model are as follows:

[0015] The left upper side of the barrel is provided with the first feeding tank, the right side of the first feeding tank is connected with the second feeding tank, the right side of the first feeding tank is connected with the first discharging hopper, the right side of the second feeding tank is connected with the second discharging hopper, the first discharging hopper and the second discharging hopper are located above the feeding hopper, and the left side of the first feeding tank is provided with the second hydraulic oil cylinder; during the stirring process, the second hydraulic oil cylinder can drive the first feeding tank and the second feeding tank to incline to the right side, the curing agent and the resin are added into the barrel for multiple times, the sand, the curing agent and the resin are stirred uniformly, and uniform sand mixing is realized. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be further described in connection with the drawings.

[0017] Figure 1The utility model discloses a resin sand mixer's front view convenient to even sand mixing;

[0018] Figure 2 The utility model discloses a resin sand mixer's plan view convenient to even sand mixing;

[0019] Figure 3 The utility model discloses a resin sand mixer's side view convenient to even sand mixing;

[0020] Figure 4 The utility model discloses a resin sand mixer's front view convenient to even sand mixing;

[0021] Figure 5 The utility model discloses a resin sand mixer's plan view convenient to even sand mixing;

[0022] Figure 6 The utility model discloses a resin sand mixer's side view convenient to even sand mixing.

[0023] The utility model discloses a resin sand mixer's front view convenient to even sand mixing; Specific embodiments

[0024] As Figures 1-6As shown, a resin sand mixer for uniform sand mixing, comprising a frame 1, a rotatable barrel 2 arranged above the frame 1, first rotating shafts 3 connected to the front and rear of the barrel 2, the other end of the first rotating shaft 3 being connected to a bearing seat on the frame 1, a first hydraulic cylinder 4 for driving the barrel 2 to rotate being installed on the left side of the barrel 2, the first hydraulic cylinder 4 being installed on the frame 1, the piston rod of the first hydraulic cylinder 4 being hinged to the barrel 2, a driving motor 6 being installed on the top surface of the barrel 2, a stirring mechanism being installed in the barrel 2 and connected to the driving motor 6, a feeding hopper 5 being connected to the top surface of the barrel 2, a discharging mechanism being installed on the right side of the barrel 2 close to the bottom, a first feeding tank 15 being arranged above the left side of the barrel 2, second rotating shafts 16 being connected to the front and rear of the first feeding tank 15, the second rotating shafts 16 being connected to bearing seats on the frame 1, a second hydraulic cylinder 18 for driving the first feeding tank 15 to rotate being installed on the left side of the first feeding tank 15, the second hydraulic cylinder 18 being installed on the frame 1, the piston rod of the second hydraulic cylinder 18 being hinged to the first feeding tank 15, a second feeding tank 19 being connected to the right side of the first feeding tank 15, a first discharge hopper 17 and a second discharge hopper 20 being arranged above the feeding hopper 5 in sequence, the first discharge hopper 17 being communicated with the first feeding tank 15, and the second discharge hopper 20 being communicated with the second feeding tank 19.

[0025] As shown, Figures 4-5 the stirring mechanism comprises a connecting shaft 7 connected to the output shaft of the driving motor 6, a mounting frame 8 connected to the bottom end of the connecting shaft 7, two first stirring paddles 9, a second stirring paddle 10 and a third stirring paddle 11 installed on the mounting frame 8, the two first stirring paddles 9 being connected to the two ends of the mounting frame 8, the first stirring paddles 9 being arranged in a plow shape, the two first stirring paddles 9 being arranged in opposite directions, the second stirring paddle 10 and the third stirring paddle 11 being connected to the two side surfaces of the mounting frame 8 through two connecting rods respectively, the distance between the second stirring paddle 10 and the mounting frame 8 being greater than the distance between the third stirring paddle 11 and the mounting frame 8, the stirring radius of the third stirring paddle 11 being greater than the stirring radius of the second stirring paddle 10, the third stirring paddle 11 being arranged in an arc shape, and the third stirring paddle 11 being arranged in an S shape.

[0026] As shown, Figure 6 the discharging mechanism comprises a baffle 12 arranged outside the discharge port of the barrel 2, limit frames 13 connected to the front and rear of the discharge port, the cross section of the limit frame 13 being arranged in an L shape, limit sliding grooves matched with the baffle 12 being formed in the opposite sides of the two limit frames 13, the baffle 12 sliding up and down along the limit sliding grooves, and an operating frame 14 being installed outside the baffle 12.

[0027] Specifically, the operation frame 14 comprises a first frame body 14-1 and a second frame body 14-2, the top of the first frame body 14-1 is hinged on the outer wall of the barrel body 2, the bottom of the first frame body 14-1 is connected with an operation lever, the bottom of the second frame body 14-2 is hinged on the baffle 12, and the top of the second frame body 14-2 is hinged with the middle part of the first frame body 14-1.

[0028] When it is needed to discharge, the operation lever is pulled upward, the first frame body 14-1 is rotated upward, the second frame body 14-2 is moved upward, and the baffle 12 is moved upward along the limiting sliding groove, so that the baffle 12 no longer shields the discharge port, and the mixed resin sand can be discharged from the discharge port.

[0029] The right side of the rack 1 is connected with a right-tilted material guide groove 21, which is convenient for discharging.

[0030] The action process of the utility model is as follows:

[0031] Firstly, the operator adds the prepared sand into the barrel body 2 through the feeding hopper 5, and then places the quantitative resin in the first feeding tank 15 and the quantitative curing agent in the second feeding tank 19; then, the second hydraulic oil cylinder 18 is started, the piston rod of the second hydraulic oil cylinder 18 is extended, the first feeding tank 15 and the second feeding tank 19 are tilted, a part of the resin falls into the feeding hopper 5 through the first discharge hopper 17, and a part of the curing agent falls into the feeding hopper 5 through the second discharge hopper 20, after that, the piston rod of the second hydraulic oil cylinder 18 is retracted, and the first feeding tank 15 and the second feeding tank 19 are reset; subsequently, the operator starts the driving motor 6, the driving motor 6 drives the stirring mechanism to rotate, the first stirring paddle 9, the second stirring paddle 10 and the third stirring paddle 11 stir the sand, the resin and the curing agent in the barrel body 2, after a period of stirring, the piston rod of the second hydraulic oil cylinder 18 is extended, the first feeding tank 15 and the second feeding tank 19 are tilted, the remaining curing agent and resin are poured into the barrel body 2, and the stirring is continued until the stirring is completed; finally, the piston rod of the first hydraulic oil cylinder 4 is extended, the barrel body 2 is tilted to the right side, the baffle 12 is moved upward along the limiting sliding groove through the operation frame 14, the baffle 12 no longer shields the discharge port, and the mixed resin sand can fall from the discharge port onto the material guide groove 21 and be discharged to the right side along the material guide groove 21.

[0032] The above-described embodiments are only used to describe the preferred modes of the utility model, and do not limit the scope of the utility model, and various deformations and improvements on the technical scheme of the utility model made by the ordinary skilled in the art without departing from the design spirit of the utility model shall fall into the protection scope determined by the claim of the utility model.

Claims

1. A resin sand muller for facilitating uniform sand mixing, characterized by: The utility model provides a kind of double-rotary barrel mixer, including rack (1), the top of the rack (1) is provided with rotatable barrel (2), the left side of the barrel (2) is provided with first hydraulic cylinder (4) for driving the barrel (2) rotation, the top of the barrel (2) is provided with drive motor (6), the inside of the barrel (2) is provided with stirring mechanism connected with the drive motor (6), the top of the barrel (2) is further provided with feed hopper (5), the right side of the barrel (2) is provided with discharge mechanism near bottom position, the left top of the barrel (2) is provided with first feeding tank (15), the left side of the first feeding tank (15) is provided with second hydraulic cylinder (18) for driving the first feeding tank (15) rotation, the right side of the first feeding tank (15) is provided with second feeding tank (19), the top of the feed hopper (5) is sequentially provided with first discharge hopper (17) and second discharge hopper (20), the first discharge hopper (17) is communicated with the first feeding tank (15), the second discharge hopper (20) is communicated with the second feeding tank (19).

2. A resin sand muller for facilitating uniform sand mixing as claimed in claim 1, wherein: The front and back sides of the barrel (2) are rotatably connected to the rack (1) by a first rotating shaft (3).

3. The resin sand muller for facilitating uniform sand mixing as claimed in claim 1 wherein: The stirring mechanism includes a connecting shaft (7) connected to an output shaft of the drive motor (6), a mounting frame (8) provided at a bottom end of the connecting shaft (7), two first stirring paddles (9) provided at two ends of the mounting frame (8), a second stirring paddle (10), and a third stirring paddle (11) connected to two side surfaces of the mounting frame (8) by connecting rods, respectively.

4. The resin sand muller for facilitating uniform sand mixing as claimed in claim 3 wherein: The two first stirring paddles (9) are oppositely directed.

5. The resin sand muller for facilitating uniform sand mixing as claimed in claim 3 wherein: A distance between the second stirring paddle (10) and the mounting frame (8) is greater than a distance between the third stirring paddle (11) and the mounting frame (8).

6. The resin sand muller for facilitating uniform sand mixing as claimed in claim 1 wherein: The discharge mechanism includes a baffle (12) provided outside a discharge port of the barrel (2), limit frames (13) provided at front and back sides of the discharge port, limit sliding grooves matching the baffle (12) provided in the limit frames (13), the baffle (12) sliding up and down along the limit sliding grooves, and an operating frame (14) provided outside the baffle (12).

7. The resin sand muller for facilitating uniform sand mixing as claimed in claim 6 wherein: The operating frame (14) includes a first frame body (14-1) movably provided on an outer wall of the barrel (2) at a top portion thereof, an operating rod provided at a bottom portion of the first frame body (14-1), a second frame body (14-2) movably provided on the baffle (12) at a bottom portion thereof, and a top portion of the second frame body (14-2) movably provided on the first frame body (14-1).

8. The resin sand muller for facilitating uniform sand mixing of claim 1, wherein: The first feeding tank (15) is rotatably connected to the rack (1) by a second rotating shaft (16) at both sides of a front side thereof.

9. The resin sand muller for facilitating uniform sand mixing as claimed in claim 1 wherein: A material guide groove (21) is provided at a right side of the rack (1).