Stirring mechanism for improving stirring effect of precoated sand mixer

Abstract

The stirring mechanism for improving the stirring effect of the precoated sand mixer comprises a fixed base, an equipment bin is fixedly installed above the fixed base, a sand mixer tank is fixedly installed above the equipment bin through a supporting rod, and a first driving motor and a second driving motor are fixedly installed in the equipment bin; an up-down reverse stirring mechanism is fixedly mounted above the equipment bin, penetrates through the bottom of the sand mixer tank body, extends into the sand mixer tank body and is matched with a first driving motor and a second driving motor; the first driving motor and the second driving motor are used for driving the main rotating shaft and the outer lantern ring to rotate reversely, the upper stirring rods and the lower stirring rods are used for mixing and stirring precoated sand in a bidirectional up-down staggered mode, the uniformity of precoating of the precoated sand is improved, and the product quality of the precoated sand is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mixing of coated sand mixers, in particular to a mixing mechanism for increasing the mixing effect of coated sand mixers. Background Art

[0002] The thermal lamination process is to add a certain weight of raw sand heated to a certain temperature into a sand mixer, add a certain amount of resin, lubricant and curing agent in a certain order during the sand mixing process, and then sand out, crush, screen and cool to make dry thermosetting molding sand containing latent curing agent, lubricant and binder. Therefore, the stirring effect of the sand mixer used in the thermal lamination process directly affects the uniformity and smoothness of the resin coating of the coated sand, thereby affecting its strength, fluidity and formability, as well as production efficiency and other aspects.

[0003] The stirring mechanism of the existing coated sand mixer cannot stir the raw materials in two-way up and down motions, and there is often a technical problem of uneven mixing of the raw sand, resulting in poor mixing of the raw sand and additives, causing a considerable portion of the finished coated sand to have poor coating uniformity, seriously affecting the product quality of the coated sand.

[0004] Therefore, in view of the shortcomings of the prior art, it is necessary to provide a stirring mechanism that increases the stirring effect of the coated sand mixer to solve the shortcomings of the prior art. Utility Model Content

[0005] The purpose of the utility model is to avoid the shortcomings of the prior art and provide a stirring mechanism for increasing the stirring effect of a coated sand mixer. The stirring mechanism for increasing the stirring effect of a coated sand mixer drives a main rotating shaft and an outer sleeve ring to rotate in opposite directions through a first drive motor and a second drive motor. A plurality of upper stirring rods and a plurality of lower stirring rods realize two-way, upper and lower staggered sand mixing and stirring of the coated sand, thereby improving the uniformity of coating of the coated sand and improving the product quality of the coated sand.

[0006] The above-mentioned purpose of the utility model is achieved through the following technical means.

[0007] Provided is a stirring mechanism for increasing the stirring effect of a coated sand mixer, comprising a fixed base, an equipment bin fixedly installed above the fixed base, a mixer tank body fixedly installed above the equipment bin via a support rod, a first drive motor and a second drive motor fixedly installed inside the equipment bin, an up-and-down reverse stirring mechanism fixedly installed above the equipment bin, the up-and-down reverse stirring mechanism passes through the bottom of the mixer tank body and extends to the inside of the mixer tank body, and the up-and-down reverse stirring mechanism cooperates with the first drive motor and the second drive motor;

[0008] The up and down reverse stirring mechanism includes a main rotating shaft, one end of which is rotatably installed on the top of the equipment bin, and the other end extends to the interior of the sand mixer and is fixedly installed with a plurality of upper stirring positioning rods, and a plurality of upper stirring rods are fixedly installed on the top of the upper stirring positioning rods. An outer ring is rotatably installed on the outside of the main rotating shaft, and the outer ring is simultaneously rotatably installed on the bottom of the sand mixer tank body, and a bent lower positioning plate is fixedly installed on the top of the outer ring, and the bottom surface of the bent lower positioning plate is fitted with the bottom surface of the sand mixer, and a plurality of lower stirring rods are fixedly installed on the bent lower positioning plate, and the upper stirring rods and the lower stirring rods cooperate with each other.

[0009] Specifically, the upper stirring positioning rods are evenly installed around the top of the main shaft, no less than 2 upper stirring rods are installed on the upper stirring rod, and no less than 2 lower stirring positioning parts are provided on the bent lower positioning plate. No less than 2 lower stirring rods are installed on each stirring positioning part, and the upper stirring rods and the lower stirring rods rotate in an alternating manner.

[0010] Preferably, a first driven gear is also installed on the outside of the main shaft, a first reducer is installed on the first drive motor, an output end of the first reducer passes through the top of the equipment bin and is fixedly installed with a first driving gear, the first driving gear is meshed with the first driven gear, a second driven gear is installed on the outside of the outer ring, a second reducer is installed on the second drive motor, an output end of the second reducer passes through the top of the equipment bin and is fixedly installed with a second driving gear, the second driving gear is meshed with the second driven gear.

[0011] Specifically, a cooling water jacket is installed outside the sand mixer tank.

[0012] Furthermore, the bottom surface of the upper stirring rod is lower than the top surface of the lower stirring rod.

[0013] The utility model drives the main rotating shaft and the outer sleeve ring to rotate in the opposite direction through the first driving motor and the second driving motor, and a plurality of upper stirring rods and a plurality of lower stirring rods realize two-way up and down staggered sand mixing and stirring of the coated sand, thereby improving the uniformity of the coated sand coating and improving the product quality of the coated sand. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention is further described with reference to the accompanying drawings, but the contents in the accompanying drawings do not constitute any limitation to the present invention.

[0015] Figure 1 The utility model is a schematic diagram of the main structure of a stirring mechanism for improving the stirring effect of a coated sand mixer.

[0016] Figure 2 The utility model is a three-dimensional structural schematic diagram of the main rotating shaft, the upper stirring positioning rod and the installation of the upper stirring rod of a stirring mechanism for improving the stirring effect of a coated sand mixer.

[0017] Figure 3 The utility model is a three-dimensional structural schematic diagram of an outer sleeve ring, a bent lower positioning plate and a lower stirring rod of a stirring mechanism for increasing the stirring effect of a coated sand mixer.

[0018] Figure 4 The utility model is a stirring mechanism for increasing the stirring effect of a coated sand mixer. Figure 1 A magnified schematic diagram

[0019] from Figures 1 to 4 Including:

[0020] 1.Fix the base;

[0021] 2. Equipment warehouse;

[0022] 3. Sand mixer tank;

[0023] 4. The first drive motor;

[0024] 5. Second drive motor;

[0025] 6. Up and down reverse stirring mechanism;

[0026] 61. main rotating shaft, 62. upper stirring positioning rod, 63. upper stirring rod, 64. outer sleeve ring, 65. bent lower positioning plate, 66. lower stirring rod;

[0027] 7. First driven gear;

[0028] 8. The first reducer;

[0029] 9. First driving gear;

[0030] 10. Second driven gear;

[0031] 11. Second reducer;

[0032] 12. Second driving gear;

[0033] 13. Cooling water jacket;

[0034] 14. Lower stirring positioning part. DETAILED DESCRIPTION

[0035] The utility model is further described in conjunction with the following embodiments.

[0036] Example 1.

[0037] like Figure 1-4As shown, a stirring mechanism for increasing the stirring effect of a coated sand mixer comprises a fixed base 1, an equipment bin 2 is fixedly installed above the fixed base 1, a mixer tank body 3 is fixedly installed above the equipment bin 2 through a support rod, a first drive motor 4 and a second drive motor 5 are fixedly installed inside the equipment bin 2, an up and down reverse stirring mechanism 6 is fixedly installed above the equipment bin 2, the up and down reverse stirring mechanism 6 passes through the bottom of the mixer tank body 3 and extends to the inside of the mixer tank body 3, and the up and down reverse stirring mechanism 6 cooperates with the first drive motor 4 and the second drive motor 5.

[0038] The present application is used to produce two-way up and down staggered sand mixing and stirring for the coated sand mixer to improve the sand mixing effect. First, the entire equipment is supported by a fixed base 1, and then the first drive motor 4 and the second drive motor 5 are stored in the equipment bin 2. The outputs of the first drive motor 4 and the second drive motor 5 drive the up and down reverse stirring mechanism 6, and the up and down reverse stirring mechanism 6 stirs the coated sand inside the sand mixer tank 3.

[0039] The upper and lower reverse stirring mechanism 6 includes a main rotating shaft 61, one end of which is rotatably mounted on the top of the equipment bin 2, and the other end extends to the interior of the sand mixer and is fixedly mounted with a plurality of upper stirring positioning rods 62, and a plurality of upper stirring rods 63 are fixedly mounted on the top of the upper stirring positioning rods 62. An outer sleeve ring 64 is rotatably mounted on the outside of the main rotating shaft 61, and the outer sleeve ring 64 is simultaneously rotatably mounted on the bottom of the sand mixer tank body 3, and a bent lower positioning plate 65 is fixedly mounted on the top of the outer sleeve ring, and the bottom surface of the bent lower positioning plate 65 is in contact with the bottom surface of the sand mixer, and a plurality of lower stirring rods 66 are fixedly mounted on the bent lower positioning plate 65, and the upper stirring rods 63 and the lower stirring rods 66 cooperate with each other.

[0040] The main shaft 61 of the upper and lower reverse stirring mechanism 6 rotates to drive the upper stirring positioning rod 62 and the upper stirring rod 63 to rotate and stir. At the same time, the outer ring 64 rotates in the opposite direction to the main shaft 61, driving the bent lower positioning plate 65 and the lower stirring rod 66 to rotate and stir. The staggered two-way stirring of the upper stirring rod 63 and the lower stirring rod 66 improves the mixing effect of the coated sand.

[0041] The upper stirring positioning rods 62 are evenly installed around the top of the main shaft 61, and at least two upper stirring rods 63 are installed on the upper stirring rod 63. At least two lower stirring positioning parts 14 are provided on the bent lower positioning plate 65, and at least two lower stirring rods 66 are installed on each stirring positioning part. The upper stirring rods 63 and the lower stirring rods 66 rotate in an alternating manner.

[0042] The number of the upper stirring rods 63 and the lower stirring rods 66 is not less than 2, so that the upper stirring rods 63 and the lower stirring rods 66 can produce a staggered stirring effect.

[0043] A first driven gear 7 is also installed on the outside of the main shaft 61, and a first reducer 8 is installed on the first drive motor 4. The output end of the first reducer 8 passes through the top of the equipment bin 2 and is fixedly installed with a first driving gear 9, and the first driving gear 9 is meshed with the first driven gear 7. A second driven gear 10 is installed on the outside of the outer ring 64, and a second reducer 11 is installed on the second drive motor 5. The output end of the second reducer 11 passes through the top of the equipment bin 2 and is fixedly installed with a second driving gear 12, and the second driving gear 12 is meshed with the second driven gear 10.

[0044] The output of the first driving motor 4 cooperates with the first speed reducer 8 to drive the first driving gear 9 to rotate, and then drives the first driven gear 7 meshing therewith to rotate, so as to realize the rotation of the main shaft 61. The second driving motor 5 cooperates with the second speed reducer 11 to drive the second driving gear 12 to rotate, and then drives the second driven gear 10 meshing therewith to rotate, so as to realize the rotation of the outer collar 64. The outer collar 64 and the main shaft 61 rotate in opposite directions, so as to realize the effect of two-way stirring.

[0045] A cooling water jacket 13 is installed outside the sand mixer tank 3 .

[0046] The cooling water tower can cool down the coated sand tank after the coated sand mixing is completed.

[0047] The bottom surface height of the upper stirring rod 63 is lower than the top surface height of the lower stirring rod 66 .

[0048] The upper stirring rod 63 and the lower stirring rod 66 overlap in the vertical direction to produce a staggered stirring effect.

[0049] The utility model drives the main shaft 61 and the outer ring 64 to rotate in the opposite direction through the first drive motor 4 and the second drive motor 5, and a plurality of upper stirring rods 63 and a plurality of lower stirring rods 66 realize two-way upper and lower staggered sand mixing and stirring of the coated sand, thereby improving the uniformity of the coated sand coating and improving the product quality of the coated sand.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit the protection scope of the utility model. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A stirring mechanism for increasing the stirring effect of a coated sand mixer, characterized in that: It comprises a fixed base, an equipment bin is fixedly installed on the top of the fixed base, a sand mixer tank is fixedly installed on the top of the equipment bin through a support rod, a first drive motor and a second drive motor are fixedly installed inside the equipment bin, an up-and-down reverse stirring mechanism is fixedly installed above the equipment bin, the up-and-down reverse stirring mechanism passes through the bottom of the sand mixer tank and extends to the inside of the sand mixer tank, and the up-and-down reverse stirring mechanism cooperates with the first drive motor and the second drive motor; The up and down reverse stirring mechanism includes a main rotating shaft, one end of the main rotating shaft is rotatably installed on the top of the equipment bin, and the other end extends to the interior of the sand mixer and is fixedly installed with a plurality of upper stirring positioning rods, and a plurality of upper stirring rods are fixedly installed on the top of the upper stirring positioning rods, and an outer ring is rotatably installed on the outside of the main rotating shaft, and the outer ring is simultaneously rotatably installed on the bottom of the sand mixer tank body, and a bent lower positioning plate is fixedly installed on the top of the outer ring, and the bottom surface of the bent lower positioning plate is in contact with the bottom surface of the sand mixer, and a plurality of lower stirring rods are fixedly installed on the bent lower positioning plate, and the upper stirring rods and the lower stirring rods cooperate with each other.

2. A stirring mechanism for increasing the stirring effect of a coated sand mixer according to claim 1, characterized in that: The upper stirring positioning rods are evenly installed around the top of the main shaft, and no less than 2 upper stirring rods are installed on the upper stirring rod. No less than 2 lower stirring positioning parts are provided on the bent lower positioning plate, and no less than 2 lower stirring rods are installed on each stirring positioning part. The upper stirring rod and the lower stirring rod rotate in an alternating manner.

3. A stirring mechanism for increasing the stirring effect of a coated sand mixer according to claim 2, characterized in that: A first driven gear is also installed on the outside of the main shaft, a first reducer is installed on the first drive motor, an output end of the first reducer passes through the top of the equipment bin and is fixedly installed with a first driving gear, the first driving gear is meshed with the first driven gear, a second driven gear is installed on the outside of the outer ring, a second reducer is installed on the second drive motor, an output end of the second reducer passes through the top of the equipment bin and is fixedly installed with a second driving gear, the second driving gear is meshed with the second driven gear.

4. A stirring mechanism for increasing the stirring effect of a coated sand mixer according to claim 3, characterized in that: A cooling water jacket is installed outside the sand mixer tank.

5. A stirring mechanism for increasing the stirring effect of a coated sand mixer according to claim 4, characterized in that: The bottom surface height of the upper stirring rod is lower than the top surface height of the lower stirring rod.

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