Efficient precoated sand uniform mixing device

Abstract

The utility model relates to an efficient precoated sand uniform mixing device which comprises a mixing barrel, the bottom end of the mixing barrel communicates with a discharging pipe with an electromagnetic valve, one side of the top end of the mixing barrel communicates with a feeding hopper, the other side of the top end of the mixing barrel is provided with a transmission mechanism, and the middle of the top end of the mixing barrel is provided with a feeding mechanism; one side of the transmission mechanism is mounted on the feeding mechanism, a stirring mechanism is mounted in an inner cavity of the mixing barrel, and the bottom end of the feeding mechanism is mounted on the stirring mechanism; the feeding mechanism comprises a feeding hopper, the bottom end of the feeding hopper communicates with a connecting pipe, the bottom end of the connecting pipe communicates with a conveying part, and the side face of the conveying part communicates with a discharging part; the mixing efficiency of the solid raw materials and the liquid raw materials is improved through the arranged material adding mechanism, so that the stirring time of the stirring mechanism can be shortened, and the working efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of coated sand production, and in particular to a highly efficient coated sand uniform mixing device. Background Art

[0002] Coated sand and sand particles are mold sand or core sand that are covered with a layer of solid resin film on their surface before molding. There are two coating processes: cold method and hot method: cold method uses ethanol to dissolve the resin, and adds urotropine during the sand mixing process, so that the two are coated on the surface of the sand particles, and the ethanol evaporates to obtain coated sand; hot method preheats the sand to a certain temperature, adds resin to melt it, stirs to coat the resin on the surface of the sand particles, adds urotropine aqueous solution and lubricant, cools, crushes, and sieves to obtain coated sand, which is used for casting steel and iron parts.

[0003] It can be understood that when the coated sand is mixed for production, it is necessary to add a variety of materials into the mixing barrel for mixing, among which there are quite a few liquid materials. However, the common solid-liquid mixing device directly puts the solid raw materials into the mixing barrel first, then drives the motor to stir it, and then pours the liquid raw materials into it for mixing. The mixing efficiency of this device is low. When the liquid raw materials are poured into the mixing barrel, part of the solid raw materials will be fully contacted and mixed with the liquid raw materials, and part of the solid raw materials will have less contact with the liquid raw materials, so it takes more time to evenly stir and mix the two raw materials. The efficiency is too low, which will directly reduce the production rate. Therefore, those skilled in the art provide a high-efficiency coated sand uniform mixing device to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to provide a high-efficiency coated sand uniform mixing device to solve the problem that the common solid-liquid mixing device proposed in the above background technology is to directly put the solid raw materials into the mixing barrel first, then stir it by a motor drive, and then pour the liquid raw materials into it for mixing. The mixing efficiency of this device is low, which will directly reduce the production rate.

[0005] The present application provides a highly efficient coated sand uniform mixing device adopts the following technical solution:

[0006] A high-efficiency coated sand uniform mixing device comprises a mixing barrel, wherein the bottom end of the mixing barrel is connected to a discharge pipe with an electromagnetic valve, one side of the top end of the mixing barrel is connected to a feed hopper, the other side of the top end of the mixing barrel is connected to a transmission mechanism for driving a feeding mechanism and a stirring mechanism to rotate, a feeding mechanism for adding liquid raw materials into the mixing barrel is installed in the middle of the top end of the mixing barrel, one side of the transmission mechanism is installed on the feeding mechanism, a stirring mechanism for stirring the raw materials in the mixing barrel is installed in the inner cavity of the mixing barrel, and the bottom end of the feeding mechanism is installed on the stirring mechanism On; the feeding mechanism includes a feeding hopper, the bottom end of the feeding hopper is connected to and installed with a connecting pipe, the bottom end of the connecting pipe is connected to and installed with a conveying member, and the sides of the conveying member are connected to and installed with a discharging member; the transmission mechanism includes a motor, a driving gear is fixedly installed on the end of the motor output shaft, a driven gear is meshed and installed on one side of the driving gear, and the driven gear is fixedly connected to the connecting pipe; the stirring mechanism includes a stirring rod, the top end of the stirring rod is fixedly connected to the bottom end of the conveying member, the bottom of the stirring rod is fixedly installed with a connecting block, and the sides of the connecting block are installed with stirring blades.

[0007] Preferably, the conveying member is hexagonal in shape, and a first connecting groove is provided at the top of the conveying member, and second connecting grooves are provided on six side surfaces of the conveying member, and the first connecting groove is connected to the six second connecting grooves.

[0008] Preferably, the discharging member is composed of a discharging rod and a plurality of discharging blocks, a third connecting groove is provided inside the discharging rod, and the third connecting groove is connected to the second connecting groove.

[0009] Preferably, several of the discharging blocks are evenly installed at the bottom end of the discharging rod, and several of the discharging blocks are provided with fourth connecting grooves at the top ends, and the fourth connecting grooves are connected to the third connecting grooves.

[0010] Preferably, the cross-sections of the plurality of discharging blocks are all arranged in a semicircular arc shape, and a plurality of discharging holes are opened on the arc-shaped outer surfaces of the plurality of discharging blocks.

[0011] Preferably, the cross-section of one end of the discharge rod is arranged in a semicircular arc shape.

[0012] Preferably, the connecting block is arranged in a hexagonal shape, and the six stirring blades are arranged in a trapezoidal shape.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] Through the provided feeding mechanism, solid raw materials are added into the mixing barrel from the feeding hopper, and the driven gear is driven by the motor to rotate, so that stirring can be performed through the stirring blades, and then liquid raw materials are added into the mixing barrel through the feeding hopper, so that the liquid raw materials can enter the fourth connecting groove through the connecting pipe, the first connecting groove, the second connecting groove, and the third connecting groove in sequence. Since the driven gear drives the connecting pipe to rotate, the liquid raw materials in the fourth connecting groove will be sprayed out from the discharge hole by a certain centrifugal force, and the rotation of the connecting pipe can make the liquid raw materials sprayed by the discharge rod and the discharge block more evenly sprinkled in the mixing barrel, thereby improving the mixing efficiency of the solid raw materials and the liquid raw materials, thereby reducing the stirring time of the stirring mechanism, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of a highly efficient coated sand uniform mixing device in an embodiment of the present application;

[0017] Figure 2 This is a schematic diagram of the structure of the internal mechanism of a mixing barrel of a high-efficiency coated sand uniform mixing device in an embodiment of the present application;

[0018] Figure 3 It is a structural schematic diagram of a feeding mechanism of a high-efficiency coated sand uniform mixing device in an embodiment of the present application;

[0019] Figure 4 It is a structural schematic diagram of a discharging part of a high-efficiency coated sand uniform mixing device in an embodiment of the present application.

[0020] Explanation of the reference numerals: 1. mixing barrel; 2. discharge pipe; 3. feed hopper; 4. adding hopper; 5. connecting pipe; 6. conveying member; 7. discharge member; 8. motor; 9. driving gear; 10. driven gear; 11. stirring rod; 12. connecting block; 13. stirring blade; 14. first connecting groove; 15. second connecting groove; 16. discharge rod; 17. discharge block; 18. third connecting groove; 19. fourth connecting groove; 20. discharge hole. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0022] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0023] The following is combined with Figure 1-4 This application is described in further detail.

[0024] The present application discloses a highly efficient coated sand uniform mixing device, referring to Figure 1-4 , comprising a mixing barrel 1, the bottom end of the mixing barrel 1 is connected to a discharge pipe 2 with an electromagnetic valve, one side of the top of the mixing barrel 1 is connected to a feed hopper 3, the other side of the top of the mixing barrel 1 is equipped with a transmission mechanism for driving the feeding mechanism and the stirring mechanism to rotate, a feeding mechanism for adding liquid raw materials into the mixing barrel 1 is installed in the middle of the top of the mixing barrel 1, one side of the transmission mechanism is installed on the feeding mechanism, a stirring mechanism for stirring the raw materials in the mixing barrel 1 is installed in the inner cavity of the mixing barrel 1, and the bottom end of the feeding mechanism is installed on the stirring mechanism; the feeding mechanism includes a feeding hopper 4, the bottom end of the feeding hopper 4 is connected with a connecting pipe 5, the bottom end of the connecting pipe 5 is connected with a conveying member 6, and the sides of the conveying member 6 are connected with discharging members 7; the transmission mechanism includes a motor 8, a driving gear 9 is fixedly installed on the end of the output shaft of the motor 8, a driven gear 10 is meshed and installed on one side of the driving gear 9, and the driven gear 10 is fixedly connected to the connecting pipe 5; the stirring mechanism includes a stirring rod 11, the top end of the stirring rod 11 is fixedly connected to the bottom end of the conveying member 6, the bottom of the stirring rod 11 is fixedly installed with a connecting block 12, and the sides of the connecting block 12 are installed with stirring blades 13.

[0025] By adopting the above technical scheme, the utility model adds solid raw materials from the feed hopper 3 to the mixing barrel 1 through the setting of the feeding mechanism, drives the driving gear 9 through the motor 8 to drive the driven gear 10 to rotate, so that it can be stirred by the stirring blade 13, and then adds liquid raw materials to the mixing barrel 1 through the feeding hopper 4, so that the liquid raw materials can enter the fourth connecting groove 19 through the connecting pipe 5, the first connecting groove 14, the second connecting groove 15, and the third connecting groove 18 in sequence. Since the driven gear 10 drives the connecting pipe 5 to rotate, the liquid raw material in the fourth connecting groove 19 will be sprayed out from the discharge hole 20 by a certain centrifugal force, and the rotation of the connecting pipe 5 can make the liquid raw material sprayed by the discharge rod 16 and the discharge block 17 more evenly sprinkled in the mixing barrel 1, thereby improving the mixing efficiency of the solid raw materials and the liquid raw materials, thereby reducing the stirring time of the stirring mechanism, thereby improving work efficiency.

[0026] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The conveying member 6 is hexagonal in shape, and a first connecting groove 14 is provided at the top of the conveying member 6 . Second connecting grooves 15 are provided on the six side surfaces of the conveying member 6 , and the first connecting groove 14 is connected to the six second connecting grooves 15 .

[0027] By adopting the above technical solution, by connecting the first connecting groove 14 and the second connecting groove 15, the liquid raw material can enter the discharge piece 7 through the first connecting groove 14 and the second connecting groove 15, thereby allowing the discharge piece 7 to sprinkle the material.

[0028] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The discharging member 7 is composed of a discharging rod 16 and a plurality of discharging blocks 17 . A third connecting groove 18 is provided inside the discharging rod 16 . The third connecting groove 18 is connected to the second connecting groove 15 .

[0029] By adopting the above technical solution, by connecting the second connecting groove 15 and the third connecting groove 18, the liquid raw material can enter the third connecting groove 18 through the second connecting groove 15, and then enter the fourth connecting groove 19 for sprinkling.

[0030] Reference Figure 1 , Figure 3 and Figure 4 A plurality of discharging blocks 17 are evenly installed at the bottom end of the discharging rod 16 , and a fourth connecting groove 19 is opened at the top end of the plurality of discharging blocks 17 , and the fourth connecting groove 19 is connected to the third connecting groove 18 .

[0031] By adopting the above technical solution, it is convenient to add liquid raw materials into the mixing barrel 1 through the adding hopper 4, so that the liquid raw materials can enter the fourth connecting groove 19 through the connecting pipe 5, the first connecting groove 14, the second connecting groove 15, and the third connecting groove 18 in sequence. Since the driven gear 10 drives the connecting pipe 5 to rotate, the liquid raw materials in the fourth connecting groove 19 will be sprayed out from the discharge hole 20 by a certain centrifugal force.

[0032] Reference Figure 1 , Figure 3 and Figure 4 The cross sections of the plurality of discharge blocks 17 are all arranged in a semicircular arc shape, and a plurality of discharge holes 20 are opened on the arc-shaped outer surfaces of the plurality of discharge blocks 17 .

[0033] By adopting the above technical solution, the liquid raw material in the fourth connecting groove 19 will be sprayed out from the discharge hole 20 by a certain centrifugal force, and the cross section of the discharge block 17 is arranged in a semicircular arc shape, which can increase the spraying range of the discharge block 17.

[0034] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The cross section of one end of the discharge rod 16 is arranged in a semicircular arc shape.

[0035] By adopting the above technical solution, the cross section of one end of the discharge rod 16 is set in a semicircular arc shape, so that when the liquid raw material is subjected to a certain centrifugal force, the liquid raw material can flow back from one end of the discharge rod 16 by inertia.

[0036] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The connecting block 12 is arranged in a hexagonal shape, and the six stirring blades 13 are arranged in a trapezoidal shape.

[0037] By adopting the above technical solution, the stirring blade 13 can conveniently mix the raw materials at the bottom end of the mixing barrel 1 to avoid uneven mixing of the raw materials at the bottom end of the mixing barrel 1.

[0038] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0039] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. An efficient coated sand uniform mixing device, comprising a mixing barrel (1), the bottom end of the mixing barrel (1) is connected to a discharge pipe (2) with an electromagnetic valve, and one side of the top end of the mixing barrel (1) is connected to a feed hopper (3), characterized in that: A transmission mechanism for driving a feeding mechanism and a stirring mechanism to rotate is installed on the other side of the top of the mixing barrel (1); a feeding mechanism for adding liquid raw materials into the mixing barrel (1) is installed in the middle of the top of the mixing barrel (1); one side of the transmission mechanism is installed on the feeding mechanism; a stirring mechanism for stirring the raw materials in the mixing barrel (1) is installed in the inner cavity of the mixing barrel (1); and the bottom end of the feeding mechanism is installed on the stirring mechanism; The feeding mechanism comprises a feeding hopper (4), the bottom end of the feeding hopper (4) is connected to a connecting pipe (5), the bottom end of the connecting pipe (5) is connected to a conveying member (6), and the sides of the conveying member (6) are connected to a discharging member (7); The transmission mechanism comprises a motor (8), a driving gear (9) is fixedly mounted on the end of the output shaft of the motor (8), a driven gear (10) is meshingly mounted on one side of the driving gear (9), and the driven gear (10) is fixedly connected to the connecting pipe (5); The stirring mechanism comprises a stirring rod (11), the top end of the stirring rod (11) is fixedly connected to the bottom end of the conveying member (6), a connecting block (12) is fixedly installed at the bottom of the stirring rod (11), and stirring blades (13) are installed on the sides of the connecting block (12).

2. The high-efficiency coated sand uniform mixing device according to claim 1, characterized in that: The conveying member (6) is arranged in a hexagonal shape, and a first connecting groove (14) is provided at the top of the conveying member (6), and second connecting grooves (15) are provided on six side surfaces of the conveying member (6), and the first connecting groove (14) and the six second connecting grooves (15) are connected to each other.

3. The high-efficiency coated sand uniform mixing device according to claim 2, characterized in that: The discharging member (7) is composed of a discharging rod (16) and a plurality of discharging blocks (17). A third connecting groove (18) is provided inside the discharging rod (16), and the third connecting groove (18) is connected to the second connecting groove (15).

4. The high-efficiency coated sand uniform mixing device according to claim 3 is characterized by: A plurality of the discharging blocks (17) are evenly mounted on the bottom end of the discharging rod (16), and a fourth connecting groove (19) is provided at the top end of each of the discharging blocks (17), and each of the fourth connecting grooves (19) is connected to the third connecting groove (18).

5. The high-efficiency coated sand uniform mixing device according to claim 3 is characterized by: The cross sections of the plurality of discharge blocks (17) are all arranged in a semicircular arc shape, and a plurality of discharge holes (20) are opened on the arc-shaped outer surfaces of the plurality of discharge blocks (17).

6. The high-efficiency coated sand uniform mixing device according to claim 3, characterized in that: The cross section of one end of the discharging rod (16) is arranged in a semicircular arc shape.

7. The high-efficiency coated sand uniform mixing device according to claim 1, characterized in that: The connecting block (12) is arranged in a hexagonal shape, and the six stirring blades (13) are arranged in a trapezoidal shape.

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