CN219443333U

CN219443333U - Precoated sand mixer

Info

Publication number: CN219443333U
Application number: CN202222963458.XU
Authority: CN
Inventors: 刘德广; 刘悦
Original assignee: Cangzhou Hetai New Material Technology Co ltd
Current assignee: Cangzhou Hetai New Material Technology Co ltd
Priority date: 2022-11-07
Filing date: 2022-11-07
Publication date: 2023-08-01
Anticipated expiration: 2032-11-07

Abstract

The utility model relates to the technical field of sand mixing equipment, in particular to a precoated sand mixer; the method can realize uniform mixing of the precoated sand with different particles, avoid layering distribution of the precoated sand and improve the mixing effect of the precoated sand; the mixing device comprises a frame, a mounting frame, a mixing drum and material homogenizing components uniformly distributed in the mixing drum, wherein one end of the mounting frame is hinged to the frame, a first driving mechanism for providing power for rotation of the mounting frame is mounted on the frame, the mixing drum is hinged to the mounting frame, and a second driving mechanism for providing power for rotation of the mixing drum is mounted at the mounting frame; the material homogenizing component comprises a plurality of groups of material raising plates which are uniformly distributed along the inner wall of the mixing cylinder and are arranged in a loop.

Description

Precoated sand mixer

Technical Field

The utility model relates to the technical field of sand mixing equipment, in particular to a precoated sand mixer.

Background

As is well known, the precoated sand mainly adopts high-quality carefully selected natural quartz sand as raw sand, thermoplastic phenolic resin, urotropine and reinforcing agent as raw materials. According to different technical requirements of users, the proportion is properly adjusted in the aspects of curing speed, demolding property, fluidity, collapsibility, surface finish of castings, storage and the like. The utility model discloses a (bulletin) CN216263325U discloses a high-efficient stable tectorial membrane sand mixing device, relates to the sand mixing device field, and to current majority device when the sand mixing, the gravel is easy to glue on the lateral wall of sand mixing case, leads to the gravel to have a large amount of residues not to mix, leads to the raw materials extravagant, has reduced the problem of the mixing efficiency of device, and the present proposal is following scheme, it includes the sand mixing case, sand mixing case circumference lateral wall fixed mounting has the support frame, just the bottom fixed mounting of sand mixing case has driving motor, driving motor runs through sand mixing case fixedly connected with rabbling mechanism, just the apron is installed to the sand mixing case top end, the top fixed mounting of apron has two workboxes that are symmetric distribution, just workbin bottom fixed mounting has the connecting pipe. The sand mixing device is novel in structure, the sand can be preheated before sand mixing, and the sand can be effectively prevented from being stuck on the side wall of the sand mixing box during sand mixing, so that the mixing efficiency of the device is improved; the prior precoated sand mixer is used, and the fact that the precoated sand with different particle sizes is required to be mixed in the process of mixing the precoated sand materials is found, so that the quality of a subsequently formed sand shell is guaranteed.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides the precoated sand mixer for realizing uniform mixing of different particle precoated sand, avoiding layering distribution of the precoated sand and improving the mixing effect of the precoated sand.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the mixing device comprises a frame, a mounting frame, a mixing drum and material homogenizing components uniformly distributed in the mixing drum, wherein one end of the mounting frame is hinged to the frame, a first driving mechanism for providing power for rotation of the mounting frame is mounted on the frame, the mixing drum is hinged to the mounting frame, and a second driving mechanism for providing power for rotation of the mixing drum is mounted at the mounting frame; the material homogenizing component comprises a plurality of groups of material raising plates which are uniformly distributed along the inner wall of the mixing cylinder and are arranged in a loop; further, the first driving mechanism is preferably two groups of driving cylinders, the fixed ends of the two groups of driving cylinders are hinged with the frame, and the output ends of the two groups of driving cylinders are hinged with the mounting frame; the driving cylinder and the top roller can be adopted, the driving cylinder is fixedly arranged on the frame, the top roller is rotatably arranged at the output end of the driving cylinder, and the top roller is in rotary contact with the bottom of the mounting frame; the second driving mechanism is preferably a gear motor; the output end of the speed reducing motor is in transmission connection with the mixing drum.

Preferably, the mixing cylinder is a middle cylinder with two conical ends, and a feeding hole and a discharging hole are respectively arranged at the conical parts of the two sides of the mixing cylinder far away from the middle cylinder; further, the central axes of the feed inlet and the discharge outlet are arranged in parallel.

Preferably, the device further comprises a premixing mechanism, wherein the premixing mechanism is arranged above a position, close to the feed inlet, of the mounting frame; the premixing mechanism comprises a premixing barrel, a stirrer rotatably arranged in the premixing barrel and a transmission assembly for providing power for rotation of the stirrer, wherein the transmission assembly comprises a bevel gear steering box, a transmission shaft and a transmission belt, the output end of the bevel gear steering box is fixedly connected with the stirrer, and the input end of the bevel gear steering box is in transmission connection with the mixing barrel through the transmission shaft and the transmission belt; further, the transmission shaft is rotatably arranged on the premixing barrel, the transmission shaft is fixedly connected with the input end of the bevel gear steering box, one end of the transmission belt is sleeved on the mixing barrel, and the other end of the transmission belt is sleeved on the transmission shaft; the bottom output end of the premixing barrel is provided with a switch valve, and the output end of the premixing barrel is positioned right above the feed inlet; the switch valve is preferably an electrically controlled valve.

Preferably, a plurality of groups of lifting blades which are uniformly distributed along the inner wall of the mixing drum and are arranged in a ring are arranged in a staggered way.

Preferably, the mounting frame is provided with a limiting cylinder, and one side of the mixing cylinder is provided with a limiting hole which is correspondingly arranged with the output end of the limiting cylinder.

Preferably, the frame is provided with a collecting hopper; further, the collecting hopper is positioned below the mixing drum.

(III) beneficial effects

Compared with the prior art, the utility model provides a precoated sand mixer, which has the following beneficial effects: this tectorial membrane sand mixer through placing tectorial membrane sand in the mixing drum, and second actuating mechanism drives the mixing drum and rotates, and simultaneously first actuating mechanism drives the mixing drum and revolves about articulated department, and tilt about the mixing drum and rock the in-process, the tectorial membrane sand moves about in the mixing drum, under the effect of flitch, the tectorial membrane sand in the mixing drum is thrown by the lift, and the tectorial membrane sand is in the mutual mixing contact of throwing in-process at mixing drum middle part, effectively avoids large granule tectorial membrane sand to gather in mixing drum bottom, realizes carrying out the homogeneous mixing to different granule tectorial membrane sand, avoids the tectorial membrane sand to appear layering distribution, improves tectorial membrane sand mixing effect.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic top view of the present utility model;

FIG. 3 is a schematic cross-sectional view of the structure of FIG. 2 at A-A in accordance with the present utility model;

FIG. 4 is a schematic view of the cross-sectional structure of the utility model at B-B in FIG. 2;

the reference numerals in the drawings: 1. a frame; 2. a mounting frame; 3. a mixing drum; 4. a first driving mechanism; 5. a second driving mechanism; 6. a lifting plate; 7. a feed inlet; 8. a discharge port; 9. a premix barrel; 10. a stirrer; 11. bevel gear steering box; 12. a transmission shaft; 13. a transmission belt; 14. a limiting cylinder; 15. a limiting hole; 16. and (5) collecting hoppers.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the precoated sand mixer of the utility model comprises a frame 1, a mounting frame 2, a mixing drum 3 and a material homogenizing component uniformly distributed in the mixing drum 3, wherein one end of the mounting frame 2 is hinged on the frame 1, a first driving mechanism 4 for providing power for the rotation of the mounting frame 2 is arranged on the frame 1, the mixing drum 3 is hinged on the mounting frame 2, and a second driving mechanism 5 for providing power for the rotation of the mixing drum 3 is arranged at the mounting frame 2; the material homogenizing component comprises a plurality of groups of material raising plates 6 which are uniformly distributed along the inner wall of the mixing drum 3 and are arranged in a loop; further, the first driving mechanism 4 is preferably two groups of driving cylinders, the fixed ends of the two groups of driving cylinders are hinged with the frame 1, and the output ends of the two groups of driving cylinders are hinged with the mounting frame 2; the driving cylinder and the top roller can also be adopted, the driving cylinder is fixedly arranged on the frame 1, the top roller is rotatably arranged at the output end of the driving cylinder, and the top roller is in rotary contact with the bottom of the mounting frame 2; the second drive mechanism 5 is preferably a gear motor; the output end of the gear motor is connected with the mixing drum 3 in a transmission way.

Specifically, the mixing cylinder 3 is a middle cylinder with two conical ends, and a feeding hole 7 and a discharging hole 8 are respectively arranged at the conical parts of the two sides of the mixing cylinder 3, which are far away from the middle cylinder; further, central axes of the feed inlet 7 and the discharge outlet 8 are arranged in parallel; when the precoated sand is in a mixed state, the precoated sand is concentrated at the middle barrel type part of the mixing barrel 3, after the precoated sand is mixed, the output end of the first driving mechanism 4 is continuously extended, the inclination angle of the mixing barrel 3 is increased, and the mixed precoated sand in the mixing barrel 3 is discharged in a dispersed manner through the feed inlets 7 and the discharge outlets 8 at the two groups of conical parts, so that the blanking convenience of the precoated sand is improved.

Specifically, the device also comprises a premixing mechanism, wherein the premixing mechanism is arranged above the position, close to the feed inlet 7, of the mounting frame 2; the premixing mechanism comprises a premixing barrel 9, a stirrer 10 rotatably arranged in the premixing barrel 9 and a transmission assembly for providing power for rotation of the stirrer 10, wherein the transmission assembly comprises a bevel gear steering box 11, a transmission shaft 12 and a transmission belt 13, the output end of the bevel gear steering box 11 is fixedly connected with the stirrer 10, and the input end of the bevel gear steering box 11 is in transmission connection with the mixing barrel 3 through the transmission shaft 12 and the transmission belt 13; further, a transmission shaft 12 is rotatably arranged on the premixing barrel 9, the transmission shaft 12 is fixedly connected with the input end of the bevel gear steering box 11, one end of a transmission belt 13 is sleeved on the mixing barrel 3, and the other end of the transmission belt 13 is sleeved on the transmission shaft 12; the bottom output end of the premixing barrel 9 is provided with a switch valve, and the output end of the premixing barrel 9 is positioned right above the feed inlet 7; the switch valve is preferably an electric control valve; when part of precoated sand is mixed in the mixing drum 3, the particle size precoated sand to be mixed is placed in the premixing drum 9, the mixing drum 3 rotates, after being driven by the driving belt 13 and the driving shaft 12, the stirrer 10 carries out primary stirring and mixing on materials in the premixing drum 9, then a switch valve is opened, and the precoated sand after premixing enters the mixing drum 3 through the feed inlet 7; the pre-mixing of the precoated sand is realized, the pre-mixing and mixing operation is synchronously carried out, the mixing time of the precoated sand is effectively shortened, and the pre-mixing effect of the precoated sand is further improved.

Specifically, a plurality of groups of lifting blades 6 which are uniformly distributed along the inner wall of the mixing drum 3 and are arranged in a loop are arranged in a staggered way; through the staggered arrangement of the lifting blades 6, the precoated sand is thrown in the mixing drum 3 through different lifting blades 6 in the process of moving the precoated sand left and right in the mixing drum 3, so that the full mixing of the precoated sand is realized, and the mixing uniformity of the precoated sand with each particle size is further improved.

Specifically, a limiting cylinder 14 is installed on the mounting frame 2, and a limiting hole 15 which is arranged corresponding to the output end of the limiting cylinder 14 is installed on one side of the mixing cylinder 3; when the precoated sand in the premixing barrel 9 is fed into the mixing barrel 3, the output end of the limiting cylinder 14 stretches and is inserted into the limiting hole 15 so as to limit the mixing barrel 3, and the precoated sand after premixing is ensured to accurately enter the mixing barrel 3 through the feed inlet 7, so that the sprinkling of the precoated sand in the feeding process is avoided; more specifically, the limiting cylinder 14 may be a hydraulic cylinder or a pneumatic cylinder.

Specifically, a collecting hopper 16 is installed on the frame 1; further, a collecting hopper 16 is positioned below the mixing drum 3; through the collection hopper 16, the precoated sand discharged from the positions of the feed inlet 7 and the discharge outlet 8 after mixing can be collected in a concentrated manner, so that the subsequent concentrated collection of the mixed precoated sand is facilitated.

When the device is used, precoated sand is placed into the mixing drum 3, the second driving mechanism 5 drives the mixing drum 3 to rotate, meanwhile, the first driving mechanism 4 drives the mixing drum 3 on the mounting frame 2 to move up and down around the hinged position, the precoated sand transversely moves left and right in the mixing drum 3, meanwhile, under the action of the lifting plate 6, the precoated sand forms a throwing effect in the mixing drum 3, the precoated sand with particle sizes fully contacts and mixes in the throwing and transverse moving process, new precoated sand can be fed into the premixing drum 9, after the transmission of the transmission component, the stirrer 10 stirs the precoated sand in the premixing drum 9, so that the premixing of the precoated sand is realized, after the mixing of the precoated sand in the mixing drum 3 is finished, the output end of the first driving mechanism 4 extends or shortens, the mixing drum 3 continuously rotates, the mixed precoated sand falls to the hopper 16 through the feed inlet 7 and the discharge outlet 8 of the conical parts at two sides, the precoated sand in the mixing drum 3 is in a horizontal state after the material discharge is finished, the feed inlet 7 is positioned at the discharge end of the premixing drum 9, the limit valve 14 is opened, and the limit valve is started after the mixing drum 3 is started again.

It should be noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.

It should be readily understood that the terms "on … …", "above … …" and "above … …" in this disclosure should be interpreted in the broadest sense such that "on … …" means not only "directly on something", but also includes "on something" with intermediate features or layers therebetween, and "above … …" or "above … …" includes not only the meaning "on something" or "above" but also the meaning "above something" or "above" without intermediate features or layers therebetween (i.e., directly on something).

Further, spatially relative terms, such as "below," "beneath," "above," "over," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. The precoated sand mixer is characterized by comprising a frame (1), a mounting frame (2), a mixing drum (3) and a material homogenizing component uniformly distributed in the mixing drum (3);

one end of the mounting frame (2) is hinged to the frame (1), a first driving mechanism (4) for providing power for rotation of the mounting frame (2) is mounted on the frame (1), the mixing drum (3) is hinged to the mounting frame (2), and a second driving mechanism (5) for providing power for rotation of the mixing drum (3) is mounted at the mounting frame (2);

the material homogenizing component comprises a plurality of groups of material raising plates (6) which are uniformly distributed along the inner wall of the mixing cylinder (3) and are arranged in a loop.

2. The precoated sand mixer according to claim 1, wherein the mixing cylinder (3) is a middle cylinder type with two conical ends, and a feeding port (7) and a discharging port (8) are respectively arranged at the parts, far away from the middle cylinder type, of the conical parts at two sides of the mixing cylinder (3).

3. The precoated sand mixer of claim 2 further comprising a premixing mechanism mounted on the mounting frame (2) above the feed inlet (7);

the premixing mechanism comprises a premixing barrel (9), a stirrer (10) rotatably installed in the premixing barrel (9) and a transmission assembly for providing power for rotation of the stirrer (10), wherein the transmission assembly comprises a bevel gear steering box (11), a transmission shaft (12) and a transmission belt (13), the output end of the bevel gear steering box (11) is fixedly connected with the stirrer (10), and the input end of the bevel gear steering box (11) is in transmission connection with the mixing barrel (3) through the transmission shaft (12) and the transmission belt (13).

4. A precoated sand mixer according to claim 3, characterized in that a plurality of groups of lifting blades (6) which are evenly distributed along the inner wall of the mixing drum (3) and are arranged in a loop are arranged in a staggered manner.

5. The precoated sand mixer according to claim 4, characterized in that a limiting cylinder (14) is mounted on the mounting frame (2), and a limiting hole (15) which is correspondingly arranged with the output end of the limiting cylinder (14) is mounted on one side of the mixing cylinder (3).

6. Precoated sand mixer according to claim 5, characterized in that the frame (1) is fitted with a collecting hopper (16).