CN211071699U

CN211071699U - Sand mixer

Info

Publication number: CN211071699U
Application number: CN201921662240.2U
Authority: CN
Inventors: 郑波; 杨正龙; 金朝阳; 程亚亚; 周强; 蒲敏
Original assignee: Chongqing Gas Compressor Factory Co Ltd
Current assignee: Chongqing Gas Compressor Factory Co Ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-07-24
Anticipated expiration: 2029-09-30

Abstract

The utility model relates to a technical field of mulling device specifically discloses a sand mixer, including mixing a sand section of thick bamboo and rotating the (mixing) shaft of connection on mixing a sand section of thick bamboo, a plurality of stirring vane of fixedly connected with on the (mixing) shaft, a plurality of stirring vane along the circumference evenly distributed of (mixing) shaft, the vertical setting of stirring vane, and one side of stirring vane slides and is equipped with the scraper blade that is used for clean stirring vane, slides on the scraper blade and is equipped with the actuating mechanism who is used for driving the scraper blade. This scheme of adoption can strike off the material of adhesion on the stirring vane automatically, has solved the extravagant technical problem of material that the material adhesion leads to, has also reduced the cleaning load to the roller mill.

Description

Sand mixer

Technical Field

The utility model relates to a sand mixing device's technical field, concretely relates to sand mixer.

Background

The sand mixer is a device which uniformly mixes all components in the molding sand and effectively coats the surface of the sand by the adhesive. The sand mixer is a main device for processing the casting sand and mixing the molding sand, and is also a key device for obtaining qualified molding sand. However, the adhesive exists in the molding sand, so that the adhesion phenomenon is easy to occur in the stirring process of the existing sand mixer, and the materials which are put into stirring cannot be put into practical use completely, thereby causing the technical problem of material waste; meanwhile, after the materials are adhered to the sand mixer, the sand mixer needs to be additionally cleaned, otherwise, the quality of the subsequently thrown and stirred materials is influenced, and the product quality is further influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses it is providing sand mixer to when solving prior art's a sand mixing section of thick bamboo stirring material, the easy technical problem who adheres on stirring vane of material.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the sand mixer comprises a sand mixing cylinder and a stirring shaft which is rotatably connected to the sand mixing cylinder, wherein a plurality of stirring blades are fixedly connected to the stirring shaft, and are uniformly distributed along the circumferential direction of the stirring shaft, the stirring blades are vertically arranged, a scraping plate used for cleaning the stirring blades is arranged on one side of each stirring blade in a sliding mode, and a driving mechanism used for driving the scraping plate is arranged on the scraping plate in a sliding mode.

The scheme has the advantages that: the sand mixer is provided with the plurality of stirring blades, so that the acting force of the materials on stirring is stronger, namely the materials in the stirring cylinder can be stirred for many times in the process that the stirring shaft rotates for one circle, and the materials are stirred uniformly more easily;

this scheme is equipped with the scraper blade on stirring vane, when starting actuating mechanism, actuating mechanism can drive the scraper blade and scrape the washing to stirring vane automatically to realized the purpose of scraping the material of adhesion on stirring vane automatically, avoided the extravagant condition of material that the material adhesion leads to on stirring vane, also avoided the material adhesion to lead to the technical problem of the clean difficulty in stirring vane later stage, make stirring vane can keep clean and tidy state, the long-term use of stirring vane of being convenient for.

Preferably, as an improvement, the driving mechanism comprises a lifting rod and a sliding block which are hinged with each other, the free end of the sliding block is connected with the scraping plate in a sliding mode, and the free end of the lifting rod is hinged with the stirring shaft.

When the lifter of this scheme was around its pin joint swing on the (mixing) shaft, can drive the slider and be circular motion around this pin joint, simultaneously, the slider is sliding connection on the scraper blade, so this scheme enables the scraper blade and produces horizontal displacement to realized making the scraper blade slide for stirring vane, and then strike off the purpose of the material of adhesion.

Preferably, as an improvement, the stirring shaft is provided with a receiving groove along the axial direction for receiving the lifting rod.

This scheme makes in the lifter embedding (mixing) shaft, enables sand mixer operation in-process, and the scraper blade is hugged closely with the periphery wall of (mixing) shaft to avoided the material to get into the position between scraper blade and the (mixing) shaft and leaded to the condition that is difficult to the material adhesion, made the material in the sand mixing section of thick bamboo can obtain more thorough cleanness.

Preferably, as an improvement, the scraper that is used for the clean sand mixing barrel internal perisporium is fixed to the one side of keeping away from the (mixing) shaft on the scraper blade, lifter and stirring vane sliding connection.

After the scraper blade of this scheme strikes off the material of adhesion on the stirring vane, can also clean the internal perisporium of a sand mulling section of thick bamboo, further reduced the remaining material in the sand mulling section of thick bamboo, improved the rate of utilization of material, also reduced the clean dynamics of a sand mulling section of thick bamboo simultaneously.

Preferably, as an improvement, the scraping plate is uniformly provided with scraping teeth, and the scraping teeth are closely attached to the stirring blade.

This scheme makes the scraper blade can strike off remaining material on the stirring vane more easily, has avoided the condition of the scraper blade chucking that the material adhesion leads to more firmly.

Preferably, as an improvement, the three stirring blades are provided with a scraping plate respectively, and the scraping plates correspond to the driving mechanisms one by one; the stirring shaft is internally connected with a driving rod in a sliding manner along the axial direction, the driving rod is hinged with three transmission rods along the circumferential direction, the three transmission rods are in one-to-one correspondence with the lifting rods, and the transmission rods are hinged with the middle parts of the lifting rods.

This scheme links three lifter with the actuating lever simultaneously, makes the three lifter of actuating lever ability simultaneous control clean three stirring vane, has improved clean efficiency.

Preferably, as an improvement, four supporting mechanisms are arranged at the bottom of the sand mixing barrel, each supporting mechanism comprises a supporting leg and a bottom plate which are fixed with each other, the supporting legs are fixed with the lower end face of the sand mixing barrel, and the bottom plate is parallel to the lower end face of the sand mixing barrel.

According to the scheme, the height of the sand mixing barrel is increased through the support legs, so that the material mixed is conveniently unloaded; then the contact area of the sand mixing barrel and the ground is increased through the bottom plate, so that the stability of the sand mixing barrel is better.

Preferably, as an improvement, the cross section of the supporting leg is in the shape of a sector ring, and the axis of the sector ring is positioned on one side close to the axis of the sand mixing barrel.

This scheme adopts the stabilizer blade of fan annular, is convenient for mix the fixed of sand section of thick bamboo and stabilizer blade.

Preferably, as an improvement, the support leg is fixedly provided with a rib plate, the rib plate is positioned on one side of the support leg far away from the axial lead of the fan ring, and the lower end face of the rib plate is fixed with the bottom plate.

This scheme makes the hookup location of stabilizer blade and bottom plate form a plurality of triangle-shaped's form through the gusset, has promoted the stability that stabilizer blade and bottom plate are connected the position, and then has promoted the supporting role of supporting mechanism to a sand mixing section of thick bamboo, makes a sand mixing section of thick bamboo more stable in the use.

Preferably, as an improvement, the cross section of the scraper is in a sector ring shape, and the inner diameter of the scraper is equal to the outer diameter of the stirring shaft; the middle part of scraper blade is equipped with the logical groove that is used for supplying stirring vane to pass, and stirring vane's both sides all offset tightly with the scraper blade.

The scraper blade of this scheme can scrape simultaneously stirring vane's both sides and wash, makes stirring vane go up the material of adhesion clean more thoroughly.

Drawings

Fig. 1 is a schematic three-dimensional structure diagram of a first embodiment of the sand mixer of the present invention.

Fig. 2 is a top cross-sectional view of the first embodiment of the present invention, wherein the cutting plane passes through the center line of the through groove.

Fig. 3 is a sectional view taken along a-a of fig. 2.

Fig. 4 is a plan view of a second embodiment of the present invention, mainly showing the positional relationship between the scraper and the scraper.

Fig. 5 is a plan view of the second embodiment of the present invention, mainly showing a state where the scraper abuts against the inner peripheral wall of the sand mixing barrel.

Fig. 6 is a front cross-sectional view of the second embodiment of the present invention, and the cutting direction is the direction B-B in fig. 4.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the sand mixing device comprises a sand mixing cylinder 1, a stirring shaft 2, stirring blades 3, a sliding chute 4, a scraping plate 5, scraping teeth 6, a lifting rod 7, a sliding block 8, a containing groove 9, a driving rod 10, a driving rod 11, support legs 12, a bottom plate 13, rib plates 14, a scraper 15 and an arc-shaped sliding chute 16.

Example one

As shown in the attached figures 1 and 2: the sand mixer comprises a sand mixing cylinder 1 and a stirring shaft 2 which is rotatably connected in the sand mixing cylinder 1, wherein the connection relation between the sand mixing cylinder 1 and the stirring shaft 2 belongs to common knowledge and is not described herein in detail; a first motor (not shown in the figure) for driving the stirring shaft 2 to rotate is fixedly connected to the sand mixing barrel 1 through a bolt, an output shaft of the first motor is coaxially and fixedly clamped with the stirring shaft 2, the selection of the first motor and how the first motor drives the stirring shaft 2 to rotate to realize material mixing belong to common knowledge, and details are not described herein, and a low-speed synchronous motor is taken as an example; as shown in fig. 2, a plurality of stirring blades 3 are fixedly clamped on the stirring shaft 2, and here, taking three stirring blades 3 as an example for illustration, the three stirring blades 3 are uniformly distributed along the circumferential direction of the stirring shaft 2; as shown in fig. 3, the stirring vanes 3 are rectangular plates, and the stirring vanes 3 are disposed parallel to the axial line of the stirring shaft 2. As shown in fig. 2 and 3, two sliding chutes 4 are horizontally arranged on the stirring blade 3, the stirring blade 3 is horizontally connected with a scraper 5 for cleaning the stirring blade 3 through the sliding chutes 4 in a sliding manner, here, one scraper 5 is respectively arranged on three stirring blades 3, the structure of the left scraper 5 is described by taking the left scraper 5 as an example, the cross section of the scraper 5 is fan-shaped, the central angle corresponding to the scraper 5 is 120 °, and the inner diameter of the scraper 5 is equal to the outer diameter of the stirring shaft 2; a through groove for the stirring blade 3 to pass through is formed in the middle of the scraping plate 5, and two sides of the stirring blade 3 are tightly abutted against the inner wall of the through groove; the scraping teeth 6 are integrally formed on the scraping plate 5, the whole shape of the scraping teeth 6 is triangular prism, one side surface of each scraping tooth 6 is fixedly welded with the outer peripheral surface of the scraping plate 5, and the other side surface of each scraping tooth 6 is tightly abutted to the stirring blade 3.

As shown in fig. 3, a driving mechanism for driving the scraper 5 is slidably disposed on the scraper 5, the scraper 5 corresponds to the driving mechanism one to one, here, the structure of the driving mechanism is described by taking the left driving mechanism as an example, the driving mechanism includes a lifting rod 7 and a slider 8 which are hinged to each other, the left end of the slider 8 is vertically slidably connected to the scraper 5 through a dovetail groove, the right end of the lifting rod 7 is hinged to the lower end of the stirring shaft 2, here, an accommodating groove 9 for accommodating the lifting rod 7 is axially disposed on the stirring shaft 2, and the right end of the lifting rod 7 is rotatably connected to the inner peripheral wall of the accommodating groove 9 through a shaft pin. A driving rod 10 is vertically and slidably connected in the stirring shaft 2, three driving rods 11 are hinged to the lower end of the driving rod 10 along the circumferential direction, the driving rods 11 correspond to the lifting rods 7 one by one, and the left ends (viewing angle in fig. 3) of the driving rods 11 are hinged to the middle parts of the lifting rods 7; the upper end of the stirring shaft 2 is fixedly connected with a second motor (not shown in the figure) for enabling the driving rod 10 to axially slide through a bolt, and an output shaft of the second motor is fixedly clamped with the upper end of the driving rod 10.

As shown in fig. 1, a discharge hole (not shown in the figure) for discharging is formed at the bottom of the sand mixing barrel 1; the bottom of the sand mixing barrel 1 is fixedly connected with four supporting mechanisms through bolts, so that the height of the sand mixing barrel 1 is increased, and the material can be conveniently discharged from the bottom of the sand mixing barrel 1; the supporting mechanism comprises a supporting leg 12 and a bottom plate 13 which are mutually welded and fixed, the supporting leg 12 and the lower end face of the sand mixing cylinder 1 are fixed through bolts, the cross section of the supporting leg 12 is in a sector ring shape, and the axis of the sector ring is positioned on one side close to the axis of the sand mixing cylinder 1; the support leg 12 is fixedly provided with a rib plate 14, the rib plate 14 is positioned on one side of the support leg 12 far away from the axial lead of the fan ring, and the rib plate 14 is arranged along the radial direction of the support leg 12; the lower end face of the rib plate 14 is welded and fixed with the bottom plate 13, and the bottom plate 13 is parallel to the lower end face of the sand mixing barrel 1.

The specific implementation process is as follows: before this scheme of use mulling, start the second motor earlier, promote the actuating lever 10 upwards to the state in the 7 inside income holding tanks 9 of lifter, at this moment, the scraper blade 5 inwards takes in the position that offsets with the periphery wall of (mixing) shaft 2, because the central angle that scraper blade 5 corresponds is 120, so three scraper blade 5 just closes at the outer peripheral face of (mixing) shaft 2 and splices into a ring, has avoided the material to get into the space between scraper blade 5 and the (mixing) shaft 2. Then the materials to be mixed are added and mixed evenly.

After the uniform mixing is finished, discharging through a discharge port; after discharging, the second motor is started, as shown in fig. 3, the driving rod 10 is made to move downwards, when the driving rod 10 moves downwards, the right end of the driving rod 11 is driven to move downwards, and the left end of the driving rod 11 is hinged to the lifting rod 7, so when the right end of the driving rod 11 moves downwards, the lifting rod 7 is driven to swing around the hinged point between the lifting rod 7 and the stirring shaft 2, and the left end of the lifting rod 7 drives the sliding block to slide downwards on the scraper 5, so that the purpose of pushing the scraper 5 leftwards is achieved, the scraper 5 can scrape materials adhered to the side surface of the stirring blade 3, and the situation that the materials are adhered to the stirring blade 3 to cause material waste is avoided. The scraping teeth 6 can also prevent part of materials from being firmly adhered to the stirring blade 3, so that the materials are difficult to scrape, and the scraping plate 5 can scrape the materials smoothly.

Example two

As shown in fig. 4 and 5, the present embodiment is different from the first embodiment in that a scraper 15 for cleaning the inner peripheral wall of the sand mixing barrel 1 is fixedly arranged on one side of the scraper 5 away from the stirring shaft 2, and the scraper 15 and the lifting rod 7 are positioned on the same side of the stirring blade 3; as shown in fig. 6, a hinge point at the lower end of the lifting rod 7 is taken as a first hinge point, the stirring blade 3 is provided with a circular arc chute 16 with the first hinge point as a center, and the lifting rod 7 and the stirring blade 3 are slidably connected through the circular arc chute 16.

When the scheme is used, the basic operation is the same as that in the first embodiment, when the lifting rod 7 drives the scraper 5 to slide in the direction away from the stirring shaft 2, and after the residual material on the stirring blade 3 is scraped, the driving rod 10 continues to move downwards, so that the left end of the lifting rod 7 continues to move downwards, the scraper 5 is driven to move to the state shown in fig. 5, and then the stirring shaft 2 and the sand mixing cylinder 1 rotate relatively, thereby achieving the purpose of scraping the material adhered to the inner peripheral wall of the sand mixing cylinder 1, when the scraper 15 scrapes and washes the inner peripheral wall of the sand mixing cylinder 1, the circular arc-shaped sliding groove 16 can ensure that the lifting rod 7 is always located at the position tightly abutted to the stirring blade 3, so that the lifting rod 7 can drive the scraper to retract to the position tightly abutted to the stirring. So this scheme can also clean the internal perisporium of mixing a sand section of thick bamboo 1, further reduced the waste of material, promoted the rate of utilization of material.

The above description is only an example of the present invention, and the detailed technical solutions and/or characteristics known in the solutions are not described too much here. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The sand mixer comprises a sand mixing cylinder and a stirring shaft connected to the sand mixing cylinder in a rotating manner, wherein a plurality of stirring blades are fixedly connected to the stirring shaft and are uniformly distributed along the circumferential direction of the stirring shaft, and the sand mixer is characterized in that: stirring vane is vertical to be set up, and one side of stirring vane slides and is equipped with the scraper blade that is used for cleaning stirring vane, slides on the scraper blade and is equipped with the actuating mechanism who is used for driving the scraper blade.

2. A roller mill according to claim 1, characterized in that: the driving mechanism comprises a lifting rod and a sliding block which are hinged with each other, the free end of the sliding block is connected with the scraping plate in a sliding mode, and the free end of the lifting rod is hinged with the stirring shaft.

3. A roller mill according to claim 2, characterized in that: and an accommodating groove for accommodating the lifting rod is axially arranged on the stirring shaft.

4. A roller mill according to claim 2, characterized in that: and a scraper used for cleaning the inner peripheral wall of the sand mixing cylinder is fixedly arranged on one side of the scraper far away from the stirring shaft, and the lifting rod is connected with the stirring blades in a sliding manner.

5. A roller mill according to claim 4, characterized in that: the scraping plate is evenly provided with scraping teeth, and the scraping teeth are tightly attached to the stirring blades.

6. A roller mill according to claim 2, characterized in that: the three stirring blades are respectively provided with a scraping plate, and the scraping plates correspond to the driving mechanisms one by one; the stirring shaft is internally connected with a driving rod in a sliding manner along the axial direction, the driving rod is hinged with three transmission rods along the circumferential direction, the three transmission rods are in one-to-one correspondence with the lifting rods, and the transmission rods are hinged with the middle parts of the lifting rods.

7. A roller mill according to claim 1, characterized in that: the bottom of mixing a sand section of thick bamboo is equipped with four supporting mechanism, and supporting mechanism includes mutually fixed stabilizer blade and bottom plate, and the stabilizer blade is fixed with the lower terminal surface of mixing a sand section of thick bamboo, and the bottom plate is parallel with the lower terminal surface of mixing a sand section of thick bamboo.

8. A roller mill according to claim 7, characterized in that: the cross section of the supporting leg is in a fan-shaped ring shape, and the axis of the fan-shaped ring is positioned on one side close to the axis of the sand mixing barrel.

9. A roller mill according to claim 8, characterized in that: the supporting leg is fixedly provided with a rib plate, the rib plate is positioned on one side of the supporting leg far away from the axial lead of the fan ring, and the lower end face of the rib plate is fixed with the bottom plate.

10. A roller mill according to claim 1, characterized in that: the cross section of the scraper is in a fan-shaped ring shape, and the inner diameter of the scraper is equal to the outer diameter of the stirring shaft; the middle part of scraper blade is equipped with the logical groove that is used for supplying stirring vane to pass, and stirring vane's both sides all offset tightly with the scraper blade.