A resin sand casting mixing device
By employing multiple sets of spiral blades and a motor drive system in the sand mixing device, the problem of low material discharge efficiency caused by unidirectional discharge is solved, and multidirectional material discharge and mixing efficiency are improved, enhancing the stability and ease of operation of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIAOCHENG XINLUO MACHINERY
- Filing Date
- 2025-03-26
- Publication Date
- 2026-06-19
AI Technical Summary
Existing resin sand casting mixing devices can only discharge material in one direction, resulting in low material discharge efficiency and the inability to achieve flat placement of the material trays.
The system employs a multi-set spiral blade design and a motor drive system to achieve mixing and multi-directional feeding of raw sand, with the feeding angle and direction adjusted via a rotary joint.
It improves material feeding efficiency, achieves uniform mixing of raw sand and flexible feeding operation, and enhances the stability and convenience of the equipment.
Smart Images

Figure CN224372715U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of sand mixing devices, and in particular to a sand mixing device for resin sand casting. Background Technology
[0002] Sand casting is a casting method that produces castings in sand molds. Steel, iron, and most non-ferrous alloy castings can be obtained using sand casting. Because the molding materials used in sand casting are inexpensive and readily available, and the mold making is simple, it can adapt to single-piece production, batch production, and mass production of castings. For a long time, it has been a basic process in casting production, and sand mixing is an important step in sand casting.
[0003] In the prior art, patent document with publication number CN212495182U discloses a sand mixing device for resin sand casting, including a cylinder, a first stirring mechanism, a second stirring mechanism, and a third stirring mechanism; the top of the cylinder is provided with a feed inlet and the bottom is provided with a discharge outlet; the first stirring mechanism includes a grinding wheel and a first rotating shaft; the second stirring mechanism includes a second rotating shaft; the third stirring mechanism includes a third rotating shaft; the plane where the third stirring plate is located is close to the bottom of the cylinder.
[0004] During use, it was found that the above-mentioned device can only discharge material in one direction, so it is impossible to lay the material trays flat. One set of material trays must be filled before another set of material trays can be placed. The material discharge efficiency needs to be further improved. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides a sand mixing device for resin sand casting.
[0006] This utility model discloses a sand mixing device for resin sand casting, comprising a first shell, with multiple sets of support legs at the bottom and a feed pipe at the top, with a hopper at the input end of the feed pipe. It also includes a sand mixing component and a discharge component. The sand mixing component is located inside the first shell, and the discharge component is located at the output end of the first shell. Raw material sand is injected into the first shell through the hopper and feed pipe. The sand mixing component is then activated, causing it to mix and stir the raw material sand. After mixing, the material is discharged in multiple directions through the discharge component, improving discharge efficiency.
[0007] Preferably, the sand mixing assembly includes a rotating shaft, support rods, a first spiral blade, a second spiral blade, and a drive motor. The rotating shaft is rotatably mounted inside the first housing. Two sets of second spiral blades are symmetrically arranged on the rotating shaft, with opposite thread directions. Multiple support rods are mounted on the rotating shaft, each with two sets of first spiral blades, also with opposite thread directions. The first spiral blades and their corresponding inner second spiral blades have opposite thread directions. A drive motor is mounted on the first housing, with its output end connected to one end of the rotating shaft. Starting the drive motor causes the rotating shaft to rotate, driving the two sets of second spiral blades and the two sets of first spiral blades. The two sets of first spiral blades transport the raw sand from the bottom of the first housing to the center, while the two sets of second spiral blades transport the raw sand from the center of the first housing to both sides, thereby mixing the raw sand and improving mixing efficiency.
[0008] Preferably, the discharge assembly includes a discharge pipe, a discharge valve, a rotary joint, a second housing, a second motor, a rotating shaft, a third spiral blade, and a feeding pipe. The first housing has a discharge pipe at its output end, and a discharge valve is installed on the discharge pipe. The output end of the discharge pipe is rotatably connected to the input end of the second housing via the rotary joint. A rotating shaft is rotatably installed inside the second housing. The third spiral blade is mounted on the rotating shaft inside the second housing. A second motor is installed on the second housing, and its output end is connected to one end of the rotating shaft. The feeding pipe is located at the output end of the second housing. Opening the discharge valve allows the mixed raw sand to enter the second housing through the discharge pipe. Starting the second motor causes the rotating shaft to drive the third spiral blade to transport the raw sand inside the second housing and discharge it through the feeding pipe. With the assistance of the rotary joint, the operator adjusts the angle of the second housing to adjust the feeding angle and direction, improving flexibility.
[0009] Preferably, it also includes a base, with a base provided at the bottom of each set of legs, and the base is connected to the ground by bolts; the base and the legs work together to provide stable support for the No. 1 shell and improve stability.
[0010] Preferably, it also includes a handle, which is installed on the second housing; the operator can adjust the angle of the second housing by using the handle, which improves convenience.
[0011] Preferably, the third spiral blade is made of stainless steel.
[0012] Preferably, the handle is fitted with a handle cover.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the raw sand is injected into the No. 1 shell through the hopper and the feed pipe, the sand mixing component is started, so that the sand mixing component mixes and stirs the raw sand. After the mixing is completed, the material is discharged in multiple directions through the discharge component, thereby improving the discharge efficiency. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the isometric structure of this utility model;
[0015] Figure 2 This is an exploded structural diagram of the present invention;
[0016] Figure 3 This is an enlarged structural diagram of the No. 1 spiral blade and drive motor, etc.
[0017] Figure 4 This is an enlarged structural diagram of the No. 1 shell and the discharge valve, etc.
[0018] Figure 5 This is an enlarged structural diagram of the No. 3 spiral blade and the No. 2 motor, among other structures.
[0019] The following are labels in the attached diagram: 1. Shell; 2. Support leg; 3. Hopper; 4. Feed pipe; 5. Rotating shaft; 6. Support rod; 7. No. 1 spiral blade; 8. No. 2 spiral blade; 10. Drive motor; 11. Discharge pipe; 12. Discharge valve; 13. Rotary joint; 14. No. 2 shell; 15. No. 2 motor; 16. Rotating shaft; 17. No. 3 spiral blade; 18. Feed pipe; 19. Base; 20. Handle. Detailed Implementation
[0020] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.
[0021] Example 1
[0022] like Figure 1 and Figure 2 As shown, the present invention provides a sand mixing device for resin sand casting, including a first shell 1, with multiple sets of support legs 2 at the bottom end of the first shell 1, a feed pipe 4 at the top end of the first shell 1, a hopper 3 at the input end of the feed pipe 4, and a sand mixing component and a discharge component. The sand mixing component is installed inside the first shell 1, and the discharge component is installed at the output end of the first shell 1.
[0023] like Figure 2 and Figure 3As shown, the sand mixing assembly includes a rotating shaft 5, support rods 6, a first spiral blade 7, a second spiral blade 8, and a drive motor 10. The rotating shaft 5 is rotatably mounted inside the first housing 1. Two sets of second spiral blades 8 are symmetrically arranged on the rotating shaft 5, with opposite thread directions. Multiple sets of support rods 6 are mounted on the rotating shaft 5, with two sets of first spiral blades 7 mounted on the support rods 6, with opposite thread directions. The first spiral blade 7 and its corresponding inner second spiral blade 8 have opposite thread directions. The drive motor 10 is mounted on the first housing 1, and its output end is connected to one end of the rotating shaft 5.
[0024] In this embodiment, the raw sand is injected into the No. 1 shell 1 through the hopper 3 and the feed pipe 4. The drive motor 10 is started, so that the rotating shaft 5 drives the two sets of No. 2 spiral blades 8 and the two sets of No. 1 spiral blades 7 to rotate. The two sets of No. 1 spiral blades 7 transport the raw sand in the middle of the bottom of the No. 1 shell 1, and the two sets of No. 2 spiral blades 8 transport the raw sand in the middle of the No. 1 shell 1 to both sides, thereby mixing the raw sand. After the mixing is completed, the material is discharged in multiple directions through the discharge assembly.
[0025] Example 2
[0026] like Figure 1 and Figure 2 As shown, the present invention provides a sand mixing device for resin sand casting, including a first shell 1, with multiple sets of support legs 2 at the bottom end of the first shell 1, a feed pipe 4 at the top end of the first shell 1, a hopper 3 at the input end of the feed pipe 4, and a sand mixing component and a discharge component. The sand mixing component is installed inside the first shell 1, and the discharge component is installed at the output end of the first shell 1.
[0027] like Figure 2 and Figure 3 As shown, the sand mixing assembly includes a rotating shaft 5, support rods 6, a first spiral blade 7, a second spiral blade 8, and a drive motor 10. The rotating shaft 5 is rotatably mounted inside the first housing 1. Two sets of second spiral blades 8 are symmetrically arranged on the rotating shaft 5, with opposite thread directions. Multiple sets of support rods 6 are mounted on the rotating shaft 5, and two sets of first spiral blades 7 are mounted on the support rods 6, with opposite thread directions. The first spiral blade 7 and the corresponding second spiral blade 8 on the inner side have opposite thread directions. The drive motor 10 is mounted on the first housing 1, and the output end of the drive motor 10 is connected to one end of the rotating shaft 5.
[0028] like Figure 2 , Figure 4 and Figure 5As shown, the discharge assembly includes a discharge pipe 11, a discharge valve 12, a rotary joint 13, a second housing 14, a second motor 15, a rotating shaft 16, a third spiral blade 17, and a discharge pipe 18. The discharge pipe 11 is provided at the output end of the first housing 1, and the discharge valve 12 is installed on the discharge pipe 11. The output end of the discharge pipe 11 is rotatably connected to the input end of the second housing 14 through the rotary joint 13. The rotating shaft 16 is rotatably provided inside the second housing 14. The third spiral blade 17 is installed on the rotating shaft 16 inside the second housing 14. The second motor 15 is installed on the second housing 14, and the output end of the second motor 15 is connected to one end of the rotating shaft 16. The discharge pipe 18 is provided at the output end of the second housing 14.
[0029] It also includes a base 19 and a handle 20. Each set of support legs 2 is provided with a base 19 at its bottom end. The base 19 is connected to the ground by bolts. The handle 20 is installed on the second housing 14.
[0030] In this embodiment, raw sand is injected into the No. 1 shell 1 through the hopper 3 and the feed pipe 4. The drive motor 10 is started, which causes the rotating shaft 5 to drive the two sets of No. 2 spiral blades 8 and the two sets of No. 1 spiral blades 7 to rotate. The two sets of No. 1 spiral blades 7 transport the raw sand in the middle of the raw sand box at the bottom of the No. 1 shell 1, and the two sets of No. 2 spiral blades 8 transport the raw sand in the middle of the No. 1 shell 1 to both sides, thereby mixing the raw sand. After mixing, the discharge valve 12 is opened, so that the mixed raw sand enters the No. 2 shell 14 through the discharge pipe 11. The No. 2 motor 15 is started, which causes the rotating shaft 16 to drive the No. 3 spiral blades 17 to transport the raw sand in the No. 2 shell 14 and discharge it through the discharge pipe 18. With the cooperation of the rotary joint 13, the operator adjusts the angle of the No. 2 shell 14 to adjust the discharge angle and direction.
[0031] The first spiral blade 7, the second spiral blade 8, the drive motor 10, the discharge valve 12, and the second motor 15 of the resin sand casting mixing device of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.
[0032] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A sand mixing device for resin sand casting, comprising a first shell (1), wherein the bottom end of the first shell (1) is provided with multiple sets of support legs (2), the top end of the first shell (1) is provided with a feed pipe (4), and the input end of the feed pipe (4) is provided with a hopper (3), characterized in that, It also includes a sand mixing component and a discharge component. The sand mixing component is installed inside the No. 1 housing (1), and the discharge component is installed at the output end of the No. 1 housing (1). The sand mixing assembly includes a rotating shaft (5), support rods (6), a first spiral blade (7), a second spiral blade (8), and a drive motor (10). The rotating shaft (5) is rotatably installed inside the first housing (1). Two sets of second spiral blades (8) are symmetrically arranged on the rotating shaft (5). The two sets of second spiral blades (8) have opposite thread directions. Multiple sets of support rods (6) are installed on the rotating shaft (5). Two sets of first spiral blades (7) are installed on the support rods (6). The two sets of first spiral blades (7) have opposite thread directions. The first spiral blade (7) and the corresponding second spiral blade (8) on the inner side have opposite thread directions. The drive motor (10) is installed on the first housing (1). The output end of the drive motor (10) is connected to one end of the rotating shaft (5).
2. The sand mixing device for resin sand casting as described in claim 1, characterized in that, The discharge assembly includes a discharge pipe (11), a discharge valve (12), a rotary joint (13), a second housing (14), a second motor (15), a rotating shaft (16), a third spiral blade (17), and a discharge pipe (18). The first housing (1) is equipped with a discharge pipe (11) at its output end. A discharge valve (12) is installed on the discharge pipe (11). The output end of the discharge pipe (11) is rotatably connected to the input end of the second housing (14) through the rotary joint (13). A rotating shaft (16) is rotatably installed inside the second housing (14). The third spiral blade (17) is installed on the rotating shaft (16) inside the second housing (14). A second motor (15) is installed on the second housing (14). The output end of the second motor (15) is connected to one end of the rotating shaft (16). A discharge pipe (18) is installed at the output end of the second housing (14).
3. A resin sand casting mixing apparatus as set forth in claim 1, characterized by It also includes a base (19), and each set of legs (2) is provided with a base (19) at the bottom. The base (19) is connected to the ground by bolts.
4. The sand mixing device for resin sand casting as described in claim 2, characterized in that, It also includes a handle (20), which is mounted on the second housing (14).
5. A resin sand casting mixing apparatus as set forth in claim 2, wherein The third spiral blade (17) is made of stainless steel.
6. A resin sand casting mixing apparatus as set forth in claim 4, wherein The handle (20) is fitted with a handle cover.
Citation Information
Patent Citations
Sand mixing device for resin sand casting
CN212495182U