A resin sand mixer

Abstract

The present invention belongs to the technical field of sand mixers, and specifically provides a resin sand mixer, including a base, a conveying auger rotatably connected to the base, the conveying auger is provided with a first feed port and a first discharge port, a material guide box is rotatably connected at the first discharge port, the material guide box is slidably connected to a sleeve box, the sleeve box is rotatably connected to a hinged shaft fixedly connected to one side of the material guide box through a hinge plate, the bottom of the sleeve box is connected to the sand mixer auger, a liquid filling port is provided on the sand mixer auger, the sand mixer auger is provided with a second discharge port, an inner gear ring is fixed at one end of the sand mixer auger feed port, a movable rotating plate is provided at the bottom of the sand mixer auger, the sand mixer auger is fixedly connected to a support plate hinged on the rotating plate, a driving motor is installed on the rotating plate, a driving gear meshing with the inner gear ring is fixed at the output end of the driving motor, the rotating plate is rotatably arranged, and the first electric turntable, the second electric turntable, and the driving motor are electrically connected to the control panel. The above can realize the adjustment of the horizontal position and height of the discharge port of the sand mixer.

Description

Technical Field

[0001] The invention relates to the technical field of sand mixers, in particular to a resin sand mixer. Background Art

[0002] Resin sand is a kind of casting sand, including molding sand, curing agent and resin. By mixing the molding sand, curing agent and resin, the resin and curing agent can be wrapped around the outside of the molding sand to obtain resin sand. The resin sand is then injected into the mold, and the resin sand is waited for to harden, heated or atomized to solidify it, and then it can be used for casting molding.

[0003] The resin sand mixer is the main equipment for producing resin sand. It is mainly composed of two-stage free-rotating augers, and realizes the production of resin sand through the working principle of continuous operation. The first stage is the conveying auger, which is responsible for conveying the raw sand at a low speed; the second stage is the high-speed sand mixing auger, which is used to mix liquid resin, curing agent and molding sand at a high speed to obtain resin sand, and then the resin sand enters the required mold.

[0004] In the process of resin sand entering the mold from the sand mixing auger, the distance between the discharge port and different molds will change due to different molds. In the process of resin sand falling, if the height difference between the discharge port and the mold is too large, it is easy to form dust and pollute the working environment; if the discharge port is close to the mold, it is inconvenient to move the auger position, it is difficult to achieve continuous production, and reduce work efficiency. Summary of the invention

[0005] In view of the above-mentioned defects, the present invention provides a resin sand mixer, which can achieve vertical adjustment while ensuring normal movement in the horizontal direction.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a resin sand mixer, comprising a base, a first electric turntable is fixedly connected to the base, a conveying auger is rotatably connected to the first electric turntable, a first feeding port is arranged on the top of the conveying auger close to the base, a first discharging port is arranged on the bottom of the conveying auger away from the base, a second electric turntable is fixedly connected to the first discharging port, a material guide box is rotatably connected to the bottom of the second electric turntable, a sleeve box is sleeved at the lower part of the material guide box, the sleeve box and the material guide box are slidably connected, the sleeve box is rotatably connected to a hinge shaft fixedly connected to one side of the material guide box through a hinge plate, the bottom of the sleeve box is connected to the feeding port of the sand mixing auger, A liquid filling port is provided on the top of the sand mixing auger close to the feed port, and a second discharge port is provided on the bottom of the sand mixing auger away from the feed port. Both sides of one end of the feed port of the sand mixing auger are fixedly connected with internal gear rings, and a supporting device is provided at the bottom of the sand mixing auger, and the supporting device includes a rotating plate, and the bottom of the sand mixing auger is fixedly connected to the supporting plate hinged on the rotating plate, and two driving motors are also fixedly connected to the rotating plate, and the output ends of the two driving motors are fixedly connected with driving gears meshing with the internal gear ring for transmission, the rotating plate is rotatably connected to the pillar, and the bottom of the pillar is fixedly connected with a movably arranged pillar seat, and the first electric turntable, the second electric turntable and the driving motor are all electrically connected to the control panel.

[0007] As a further improvement of the present invention, the material guide box includes a direct flow section and a curved flow section, the top of the direct flow section is connected to the conveying auger, the bottom of the direct flow section is connected to the curved flow section, and a support plate is fixedly connected at the connection between the direct flow section and the curved flow section, and both sides of the support plate away from one end of the material guide box are fixedly connected with hinge shafts, and the hinge shafts are hinged to the hinge plate fixedly connected to the upper part of the sleeve box.

[0008] As a further improvement of the present invention, the curved flow section is a partial annular pipeline.

[0009] As a further improvement of the present invention, guide columns are fixedly connected to the outer walls on both sides of the curved flow section, and the guide columns are fixedly connected in cooperation with guide grooves provided inside the casing.

[0010] As a further improvement of the present invention, a bearing groove is provided on the top of the pillar, a rotating bearing is fitted in the bearing groove, and the rotating plate is rotatably connected to the rotating bearing through a bearing shaft fixedly connected to the bottom.

[0011] As a further improvement of the present invention, a support seat is fixedly connected to the bottom of the support plate, and the support seat is hinged to a support fixedly connected to the center of the rotating plate.

[0012] As a further improvement of the present invention, the inner gear ring is in a semi-ring shape.

[0013] As a further improvement of the present invention, the first feed opening is in a bucket shape.

[0014] As a further improvement of the present invention, a plurality of reinforcing ribs are arranged on the outer side of the sand mixing auger.

[0015] As a further improvement of the present invention, a plurality of universal wheels are fixedly connected to the bottom of the support seat.

[0016] Beneficial effects of the present invention:

[0017] The material guide box and sleeve box are set to ensure the airtightness of the conveying. Through the hinged structure, the rotatability of the connection between the sand mixing auger and the conveying auger is realized, so that the sand mixing auger can be driven by the driving motor to swing in the vertical direction, and the discharge port of the sand mixing auger can be raised and lowered. The above setting can make the distance between the discharge port and the mold freely adjustable, and can maintain a suitable distance between the discharge port and different molds. While preventing dust caused by excessive distance, it can ensure that the continuous movement in the horizontal direction is not blocked, and realize continuous and efficient production. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the first axonometric view of the resin sand mixer of the present invention;

[0019] Figure 2 This is the second axonometric view of the resin sand mixer;

[0020] Figure 3 yes Figure 2 The enlarged schematic diagram at A in the middle;

[0021] Figure 4 This is a schematic diagram of the external connection of the guide box and the sleeve box;

[0022] Figure 5 It is a schematic diagram of the internal connections of the guide box and sleeve box.

[0023] In the figure: 1-base, 2-first stepper motor, 3-first electric turntable, 4-reinforcement plate, 5-first feed port, 6-conveying auger, 7-first discharge port, 8-second electric turntable, 9-second stepper motor, 10-material guide box, 100-support plate, 101-hinge shaft, 102-direct current section, 103-bend flow section, 104-guide column; 11-casing box, 110-hinge plate, 111-guide groove; 12-second discharge port, 13-reinforcement rib, 14-sand mixing auger, 15-pillar, 16-universal wheel, 17-pillar seat, 18-turn plate, 19-motor base, 20-drive motor, 21-drive gear, 22-inner gear ring, 23-support, 24-support seat, 25-support plate, 26-liquid filling port. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings. It should be understood that the specific examples described herein are only used to explain the present invention and are not intended to limit the present invention. The directional terms mentioned in the following embodiments, such as: up, down, left, right, front or back, etc., are only referenced to the directions of the accompanying drawings. Therefore, the directional terms used are used to illustrate and are not used to limit the present invention. In addition, in all embodiments, the same figure numerals represent the same elements.

[0025] See also Figures 1 to 5 The present invention provides a resin sand mixer, including a base 1, a first electric turntable 3 is fixedly connected to the top of the base 1, the first electric turntable 3 is driven by a first stepper motor 2, and the first stepper motor 2 is electrically connected to a control panel. The stator of the first electric turntable 3 is fixedly connected to the base 1, and the rotor of the first electric turntable 3 is fixedly connected to a conveying auger 6, and the conveying auger 6 is located on the top of the first electric turntable 3. Both sides of the conveying auger 6 are fixedly connected with reinforcement plates 4, and the bottom of the reinforcement plates 4 is fixedly connected to the rotor of the first electric turntable 3, and the conveying auger 6 can be further reinforced by the reinforcement plates 4.

[0026] As a further explanation of this embodiment, the first stepper motor 2 can be adjusted through the control panel to drive the first electric turntable 3 to drive the conveying auger 6 to rotate, thereby achieving adjustment of the position of the conveying auger 6 in the horizontal direction.

[0027] A first feed port 5 is arranged above the side of the conveying auger 6 close to the first electric turntable 3 , and the first feed port 5 is arranged to shrink in a bucket shape from top to bottom. The conveying auger 6 is arranged to be inclined toward the side away from the first feed port 5 .

[0028] A first discharge port 7 is provided at the bottom of the conveying auger 6 on the side away from the first feed port 5, and a second electric turntable 8 is provided at the first discharge port 7. The stator of the second electric turntable 8 is fixedly connected to the first discharge port 7 of the conveying auger 6, and the rotor of the second electric turntable 8 is fixedly connected to a material guide box 10. Feed holes are provided in the middle of the stator and the rotor of the second electric turntable 8 to ensure that the material can be discharged from the discharge port of the conveying auger 6 and fall into the material guide box 10. The second electric turntable 8 is driven by a second stepper motor 9, and the second stepper motor 9 is electrically connected to the control panel.

[0029] As a further explanation of this embodiment, the second stepper motor 9 can be adjusted through the control panel to drive the second electric rotation to drive the material guide box 10 to rotate, thereby achieving adjustment of the horizontal position of the material guide box 10 and the connected device.

[0030] The material guide box 10 includes a direct flow section 102 and a curved flow section 103. The direct flow section 102 is located at the top and connected to the rotor of the second electric turntable 8. The direct flow section 102 is connected to the curved flow section 103 at the bottom. The curved flow section 103 is a partial annular pipeline. The outer wall of the curved flow section 103 is provided with a guide column 104, and the guide column 104 is fixedly connected to the two straight sides of the annular pipeline. A support plate 100 is provided at the connection between the direct flow section 102 and the curved flow section 103. The support plate 100 is provided on the side close to the base 1. One end of the support plate 100 is fixedly connected to the material guide box 10, and a hinge shaft 101 is provided on both sides of the other end of the support plate 100. The setting angle of the support plate 100 is set along the direction angle of the radius of the annular pipeline of the curved flow section 103. The hinge shaft 101 fixed on the support plate 100 is located at the center of the annular pipeline along the curved flow section 103.

[0031] The outer casing of the curved flow section 103 is provided with a casing 11, which fits tightly with the material guide box 10. The upper part of the casing 11 is a partial annular pipeline, and the upper part of the casing 11 is slidably connected with the middle and lower parts of the curved flow section 103 of the material guide box 10. Arc-shaped guide grooves 111 are provided on both sides of the casing 11, and the guide grooves 111 and the curved flow section 103 of the material guide box 10 are coaxially arranged. The guide column 104 of the curved flow section 103 of the material guide box 10 is fitted in the guide groove 111, and the guide column 104 can slide along the guide groove 111. A hinge plate 110 is provided on one side of the upper part of the casing 11 close to the base 1, and a hinge hole is provided at the end of the hinge plate 110, and the hinge hole is rotatably connected with the hinge shafts 101 on both sides of the support plate 100.

[0032] As a further explanation of this embodiment, the sleeve box 11 can rotate along the hinge shaft 101 through the hinge hole set on the hinge plate 110. At the same time, the guide column 104 on the material guide box 10 slides in the guide groove 111, and the cooperation between the guide column 104 and the guide groove 111 can play a limiting role, further ensuring the normal movement of the sleeve box 11. At the same time, the guide groove 111 can ensure that the sleeve box 11 will not be separated from the material guide box 10, and the material can always flow from the material guide box 10 downward to the sleeve box 11.

[0033] The lower part of the casing 11 is rectangular, and the bottom of the casing 11 is fixedly connected to the feed port at the top of one side of the sand mixing auger 14. The casing 11 is connected to the sand mixing auger 14, and a liquid filling port 26 is also provided on the side of the sand mixing auger 14 close to the feed port. The liquid filling port 26 is connected to the resin and curing agent feeding device through a hose. A second discharge port 12 is provided at the lower part of the side of the sand mixing auger 14 away from the feed port. The second discharge port 12 is in the shape of a long tube. A plurality of reinforcing ribs 13 are provided on the outside of the sand mixing auger 14 to further support and reinforce the sand mixing auger 14.

[0034] As a further explanation of this embodiment, the second stepper motor 9 can be adjusted through the control panel to drive the second electric turntable 8 to drive the material guide box 10 to rotate. Since the material guide box 10 is connected to the sleeve box 11, the sleeve box 11 will rotate together with the material guide box 10. At the same time, the sand mixing auger 14 fixedly connected to the sleeve box 11 will also rotate accordingly, thereby realizing the adjustment of the horizontal position of the sand mixing auger 14 itself.

[0035] Both sides of the sand mixing auger 14 near the feed inlet are fixedly connected with an inner gear ring 22, the inner gear ring 22 is semi-circular, and the opening of the inner gear ring 22 is arranged toward the side of the base 1. A support device is arranged at the bottom of the sand mixing auger 14 near the feed inlet, and the support device includes two drive motors 20, and the two drive motors 20 are electrically connected to the control panel. The output end of the drive motor 20 is fixedly connected with a drive gear 21, and the drive gear 21 is meshed with the inner gear ring 22 on the sand mixing auger 14 for transmission.

[0036] A motor base 19 is fixedly connected to the bottom of the driving motor 20, and the motor base 19 is fixedly connected to the top of the rotating plate 18. A support 23 is fixedly connected to the middle of the rotating plate 18, and a support seat 24 is hinged on the top of the support 23. A support plate 25 is fixedly connected to the support seat 24, and the top of the support plate 25 is fixedly connected to the bottom of the sand mixing auger 14.

[0037] As a further explanation of this embodiment, the rotation of the drive motor 20 can drive the drive gear 21 on the output end of the drive motor 20 to rotate, and the inner gear ring 22 fixedly connected to the sand mixing auger 14 and meshing with the drive gear 21 is offset in the vertical direction. During the offset process, the support plate 25 rotates through the hinge to ensure that the sand mixing auger 14 can always be supported.

[0038] The bottom of the rotating plate 18 is provided with a support 15, and the top of the support 15 is provided with a bearing groove, and a rotating bearing is matched in the bearing groove. The bottom of the rotating plate 18 is fixedly connected with a bearing shaft, and the rotating plate 18 is matched with the rotating bearing in the bearing groove through the bearing shaft, and can be rotatably connected to the top of the support 15. The bottom of the support 15 is fixedly connected with a support seat 17, and the support seat 17 is disc-shaped, and a plurality of universal wheels 16 are fixedly connected to the bottom of the support seat 17.

[0039] The working principle and usage process of this embodiment are as follows:

[0040] First, the molding sand is injected into the conveying auger 6 from the first feed port 5. The auger in the conveying auger 6 rotates to preliminarily mix the molding sand, and then it is discharged from the first discharge port 7. Then, it passes through the material guide box 10 and the sleeve box 11 in sequence and enters the sand mixing auger 14. At the same time, the curing agent and resin are added to the sand mixing auger 14 through the liquid filling port 26. The molding sand, the curing agent and the resin are mixed through the sand mixing auger 14 to obtain resin sand, and then it is discharged from the second discharge port 12 of the sand mixing auger 14 and enters the mold.

[0041] When the position of the sand mixing auger 14 needs to be changed, the first electric turntable 3 can be controlled through the control panel to drive the conveying auger 6 to rotate, and the conveying auger 6 drives the sand mixing auger 14 to move together. The supporting device at the bottom of the sand mixing auger 14 is provided with a universal wheel 16 to ensure the normal rotation of the sand mixing auger 14; in addition, the second electric turntable 8 can also be controlled through the control panel to directly rotate the sand mixing auger 14. The bottom of the sand mixing auger 14 is matched with the bearing shaft and the rotating bearing to ensure that the sand mixing auger 14 can rotate.

[0042] When different molds are replaced and the height of the second discharge port 12 of the sand mixing auger 14 needs to be adjusted, the drive motor 20 can be started by adjusting the control panel. The drive motor 20 is meshed and transmitted with the inner gear ring 22 fixed on both sides of the sand mixing auger 14 through the drive gear 21 at the output end, so that the sand mixing auger 14 rotates in the vertical direction along the hinge point. The support plate 25 hingedly arranged at the bottom of the sand mixing auger 14 plays a supporting role for the sand mixing auger 14 while ensuring the vertical rotation of the sand mixing auger 14.

[0043] The above are only preferred implementations of the present invention. The protection scope of the present invention is not limited to the above implementation measures. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A resin sand mixer, characterized in that: The invention comprises a base (1), a first electric turntable (3) being fixedly connected to the base (1), a conveying auger (6) being rotatably connected to the first electric turntable (3), a first feeding port (5) being arranged at the top of the conveying auger (6) on the side close to the base (1), a first discharging port (7) being arranged at the bottom of the conveying auger (6) on the side away from the base (1), a second electric turntable (8) being fixedly connected to the first discharging port (7), a material guide box (10) being rotatably connected at the bottom of the second electric turntable (8), a sleeve box (11) being sleeved at the lower part of the material guide box (10), the sleeve box (11) being slidably connected to the material guide box (10), the sleeve box (11) being rotatably connected to a hinge shaft (101) fixedly connected to one side of the material guide box (10) via a hinge plate (110), the bottom of the sleeve box (11) being connected to the feeding port of a sand mixing auger (14), the top of the sand mixing auger (14) on the side close to the feeding port being provided with a screw thread (14) for conveying the material. A liquid inlet (26), a second discharge outlet (12) is provided at the bottom of the sand mixing auger (14) away from the feed inlet, both sides of one end of the feed inlet of the sand mixing auger (14) are fixedly connected with an inner gear ring (22), the inner gear ring (22) is in the shape of a semi-ring, a support device is provided at the bottom of the sand mixing auger (14), the support device comprises a rotating plate (18), the bottom of the sand mixing auger (14) is fixedly connected with a support plate (25) hinged on the rotating plate (18), two drive motors (20) are also fixedly connected to the rotating plate (18), the output ends of the two drive motors (20) are fixedly connected with a drive gear (21) meshing with the inner gear ring (22), the rotating plate (18) is rotatably connected to the support column (15), the bottom of the support column (15) is fixedly connected with a movably arranged support column seat (17), the first electric turntable (3), the second electric turntable (8) and the drive motor (20) are all electrically connected to the control panel; The material guide box (10) comprises a direct flow section (102) and a curved flow section (103); the top of the direct flow section (102) is connected to the conveying auger (6); the bottom of the direct flow section (102) is connected to the curved flow section (103); a support plate (100) is fixedly connected to the connection between the direct flow section (102) and the curved flow section (103); both sides of the support plate (100) away from one end of the material guide box (10) are fixedly connected to hinge shafts (101); the hinge shafts (101) are hinged to a hinge plate (110) fixedly connected to the upper part of the sleeve box (11); and the curved flow section (103) is a partial annular pipeline; Guide columns (104) are fixedly connected to the outer walls of both sides of the curved flow section (103), and the guide columns (104) are fixedly connected to guide grooves (111) provided inside the casing (11); A bearing groove is provided at the top of the support column (15), a rotating bearing is fitted in the bearing groove, and the rotating plate (18) is rotatably connected to the rotating bearing via a bearing shaft fixedly connected at the bottom.

2. The resin sand mixer according to claim 1, characterized in that: A support seat (24) is fixedly connected to the bottom of the support plate (25), and the support seat (24) is hinged to a support seat (23) fixedly connected to the center of the rotating plate (18).

3. The resin sand mixer according to claim 1, characterized in that: The first feed port (5) is in the shape of a bucket.

4. The resin sand mixer according to claim 1, characterized in that: A plurality of reinforcing ribs (13) are arranged on the outer side of the sand mixing auger (14).

5. The resin sand mixer according to claim 1, characterized in that: A plurality of universal wheels (16) are fixedly connected to the bottom of the support seat (17).

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