阅读说明：本技术 一种垂直混砂头以及混砂机 (Vertical sand mixing head and sand mixer ) 是由 张勇 于 2019-12-09 设计创作，主要内容包括：本发明公开一种垂直混砂头,它包括混砂筒、搅拌轴以及搅拌叶,混砂筒包括上混合室和下混合室,上混合室呈圆柱形,下混合室呈圆锥形,上混合室和下混合室之间通过闸门固定连接在一起；混砂筒中心位置设置一组利用电机带动旋转的搅拌轴；搅拌轴两侧通过十字头铰接搅拌叶；所述搅拌叶包括自上而下设置上搅拌叶、辅助搅拌叶以及下搅拌叶；所述上搅拌叶上方的混砂筒筒壁上设置固化剂喷嘴,辅助搅拌叶与下搅拌叶之间的混砂筒筒壁上设置树脂喷嘴；所述闸门一侧通过气缸推动实现开启与关闭。本发明垂直混砂头的搅拌叶在工作时向外侧张开,砂粒在离心力的作用下在混合室内循环运动,加剧砂粒间的相对运动,延长砂粒在混合室内的搅拌时间,提高搅拌效果。(The invention discloses a vertical sand mixing head, which comprises a sand mixing barrel, a stirring shaft and a stirring blade, wherein the sand mixing barrel comprises an upper mixing chamber and a lower mixing chamber, the upper mixing chamber is cylindrical, the lower mixing chamber is conical, and the upper mixing chamber and the lower mixing chamber are fixedly connected together through a gate; a group of stirring shafts driven to rotate by a motor are arranged at the center of the sand mixing barrel; two sides of the stirring shaft are hinged with stirring blades through cross heads; the stirring blades comprise an upper stirring blade, an auxiliary stirring blade and a lower stirring blade which are arranged from top to bottom; a curing agent nozzle is arranged on the wall of the sand mixing barrel above the upper stirring blade, and a resin nozzle is arranged on the wall of the sand mixing barrel between the auxiliary stirring blade and the lower stirring blade; one side of the gate is pushed by the cylinder to open and close. According to the invention, the stirring blades of the vertical sand mixing head are opened outwards during working, sand particles circularly move in the mixing chamber under the action of centrifugal force, so that the relative movement among the sand particles is intensified, the stirring time of the sand particles in the mixing chamber is prolonged, and the stirring effect is improved.)

1. The utility model provides a perpendicular mulling head, it includes a muddy sand section of thick bamboo, (mixing) shaft and stirring leaf, its characterized in that: the sand mixing barrel comprises an upper mixing chamber and a lower mixing chamber, the upper mixing chamber is cylindrical, the lower mixing chamber is conical, and the upper mixing chamber and the lower mixing chamber are fixedly connected together through a gate; a group of stirring shafts driven to rotate by a motor are arranged at the center of the sand mixing barrel; the two sides of the stirring shaft are hinged with stirring blades through cross heads; the stirring blades comprise an upper stirring blade, an auxiliary stirring blade and a lower stirring blade which are arranged from top to bottom; the upper stirring blade and the lower stirring blade are hinged on the cross heads fixedly arranged on two sides of the stirring shaft and can swing around the hinged part; the auxiliary stirring blades are fixedly hinged on the cross heads at two sides of the stirring shaft; a curing agent nozzle is arranged on the wall of the sand mixing barrel above the upper stirring blade, and a resin nozzle is arranged on the wall of the sand mixing barrel between the auxiliary stirring blade and the lower stirring blade; one side of the gate is pushed by the cylinder to open and close.

2. A vertical mulling head as defined in claim 1, wherein: the gate comprises an upper gate and a lower gate; the upper gate is fixedly arranged below the upper mixing chamber through a bearing, and the lower gate is fixedly arranged above the lower mixing chamber; the upper gate is pushed to rotate by the air cylinder; the upper gate and the lower gate are provided with sand leaking holes in a staggered manner around the stirring shaft, and the sand leaking holes are correspondingly matched up and down through rotating the upper gate to realize the opening and closing of the gate.

3. A vertical mulling head as defined in claim 1, wherein: the gate comprises a left gate and a right gate which are arranged around the stirring shaft, and the left gate and the right gate enclose a space for accommodating the stirring shaft; one side of the left gate or the right gate is pushed to rotate through the air cylinder, and the left gate or the right gate is screwed out according to the direction far away from the stirring shaft to open and close the gate.

4. A sand mixer is characterized in that: comprising the vertical sand mixing head, the sand conveying big arm, the sand conveying small arm and the base of any claim 1 to 3; the upper part of the vertical sand mixing head is fixed at the bottom end of the sand conveying small arm, and the top end of the sand conveying small arm is connected with the sand conveying large arm; the lower parts of the sand feeding big arm and the sand feeding small arm are fixed on the base through the balance weight; the sand conveying device is characterized in that motors are fixedly arranged on one sides of the sand conveying big arm and one side of the sand conveying small arm, and molding sand conveying is realized by arranging screws in the sand conveying big arm and the sand conveying small arm.

5. A roller mill according to claim 4, characterized in that: the sand feeding small arm is vertical to the axis of the vertical sand mixing head; the axes of the sand feeding big arm and the sand feeding small arm form a certain angle.

Technical Field

The invention relates to the field of pig iron casting, in particular to a vertical sand mixing head and a sand mixer.

Background

The sand mixer is used for uniformly mixing sand with a liquid curing agent and resin, and the curing agent and the resin are uniformly distributed and effectively coated on the surface of sand grains to form the coated molding sand suitable for manufacturing a mold.

The existing sand mixer is mostly a continuous horizontal arm, has a good sand mixing effect, inevitably stores a layer of residual sand in a gap of a screw shell, and the residual sand can be solidified into a hard block during working, so that the abrasion of a screw stirring blade is aggravated.

Disclosure of Invention

The present invention is directed to a vertical kneading head and a kneading machine that improve the stirring effect to solve the above problems.

In order to achieve the purpose, the invention is realized by the following technical scheme: a vertical sand mixing head comprises a sand mixing barrel, a stirring shaft and stirring blades, wherein the sand mixing barrel comprises an upper mixing chamber and a lower mixing chamber, the upper mixing chamber is cylindrical, the lower mixing chamber is conical, and the upper mixing chamber and the lower mixing chamber are fixedly connected together through a gate; a group of stirring shafts driven to rotate by a motor are arranged at the center of the sand mixing barrel; the two sides of the stirring shaft are hinged with stirring blades through cross heads; the stirring blades comprise an upper stirring blade, an auxiliary stirring blade and a lower stirring blade which are arranged from top to bottom; the upper stirring blade and the lower stirring blade are hinged on the cross heads fixedly arranged on two sides of the stirring shaft and can swing around the hinged part; the auxiliary stirring blades are fixedly hinged on the cross heads at two sides of the stirring shaft; a curing agent nozzle is arranged on the wall of the sand mixing barrel above the upper stirring blade, and a resin nozzle is arranged on the wall of the sand mixing barrel between the auxiliary stirring blade and the lower stirring blade; one side of the gate is pushed by the cylinder to open and close.

Furthermore, the gate comprises an upper gate and a lower gate; the upper gate is fixedly arranged below the upper mixing chamber through a bearing, and the lower gate is fixedly arranged above the lower mixing chamber; the upper gate is pushed to rotate by the air cylinder; the upper gate and the lower gate are provided with sand leaking holes in a staggered manner around the stirring shaft, and the sand leaking holes are correspondingly matched up and down through rotating the upper gate to realize the opening and closing of the gate.

Particularly, the gate comprises a left gate and a right gate which are arranged around the stirring shaft, and the left gate and the right gate enclose a space for accommodating the stirring shaft; one side of the left gate or the right gate is pushed to rotate through the air cylinder, and the left gate or the right gate is screwed out according to the direction far away from the stirring shaft to open and close the gate.

The invention also discloses a sand mixer, which comprises the vertical sand mixing head, a sand feeding big arm, a sand feeding small arm and a base; the upper part of the vertical sand mixing head is fixed at the bottom end of the sand conveying small arm, and the top end of the sand conveying small arm is connected with the sand conveying large arm; the lower parts of the sand feeding big arm and the sand feeding small arm are fixed on the base through the balance weight; the sand conveying device is characterized in that motors are fixedly arranged on one sides of the sand conveying big arm and one side of the sand conveying small arm, and molding sand conveying is realized by arranging screws in the sand conveying big arm and the sand conveying small arm.

Still further, the sand feeding small arm is vertical to the axis of the vertical sand mixing head; the axes of the sand feeding big arm and the sand feeding small arm form a certain angle.

In conclusion, the invention has the following beneficial effects: the stirring blades of the vertical sand mixing head are opened outwards during working, sand particles circularly move in the mixing chamber under the action of centrifugal force, the relative movement among the sand particles is intensified, the stirring time of the sand particles in the mixing chamber is prolonged, and the stirring effect is improved, and the stirring device is characterized in that:

(1) the sand mixing shaft of the vertical sand mixing head is perpendicular to the sand feeding shaft of the upper sand feeding small arm, so that the periodic exciting force generated by a motor in sand mixing is reduced, the vertical sand mixing head is forced to vibrate, and the vibration of equipment is avoided from being aggravated by the lateral force born by the two sides of the sand feeding small arm.

(2) The stirring blades of the invention are opened outwards during working, sand grains move circularly in the mixing chamber under the action of centrifugal force, so that the relative movement among the sand grains is intensified, and the stirring time of the sand grains in the mixing chamber is prolonged.

(3) The gate of the invention is separately arranged, and the mixing chamber is vertically arranged, so that the gate is convenient to disassemble and clean, and the delayed opening of the gate also has the function of being used as a first sand gate plate.

Drawings

FIG. 1 is a schematic view of a vertical mulling head according to the present invention.

FIG. 2 is a schematic structural diagram of an embodiment of the gate of the present invention.

FIG. 3 is a schematic structural diagram of another embodiment of the gate of the present invention.

FIG. 4 is a schematic structural diagram of a sand mixer of the present invention.

Detailed Description

The invention will be further described in detail with reference to examples of embodiments shown in the drawings to which, however, the invention is not restricted.

Referring to fig. 1 to 4, a vertical sand mixing head includes a sand mixing barrel 1, a stirring shaft 2 and a stirring blade, the sand mixing barrel 1 includes an upper mixing chamber 1-1 and a lower mixing chamber 1-2, the upper mixing chamber 1-1 is cylindrical, the lower mixing chamber 1-2 is conical, and the upper mixing chamber 1-1 and the lower mixing chamber 1-2 are fixedly connected together through a gate 3; a group of stirring shafts 2 driven to rotate by a motor 5 are arranged at the center of the sand mixing barrel 1; two sides of the stirring shaft 2 are hinged with stirring blades through cross heads; the stirring blades comprise an upper stirring blade 6, an auxiliary stirring blade 7 and a lower stirring blade 8 which are arranged from top to bottom; the upper stirring blade 6 and the lower stirring blade 8 are hinged on the cross heads fixedly arranged on two sides of the stirring shaft 2 and can swing around the hinged part; the auxiliary stirring blades 7 are fixedly hinged on the cross heads at two sides of the stirring shaft 2; a curing agent nozzle 9 is arranged on the wall of the sand mixing barrel 1 above the upper stirring blade 6, and a resin nozzle 10 is arranged on the wall of the sand mixing barrel 1 between the auxiliary stirring blade 7 and the lower stirring blade 8; one side of the gate 3 is pushed by the cylinder 11 to open and close; the vertical sand mixing head of the invention mainly depends on the upper stirring blade 6 and the lower stirring blade 8 to realize stirring and sand mixing, and the auxiliary stirring blade 7 mainly cleans sand grains solidified or accumulated below the gate.

The gate 3 comprises an upper gate 3-1 and a lower gate 3-2; the upper gate 3-1 is fixedly arranged below the upper mixing chamber 1-1 through a bearing, and the lower gate 3-2 is fixedly arranged above the lower mixing chamber 1-2; the upper gate 3-1 is driven to rotate by the cylinder 11; the upper gate 3-1 and the lower gate 3-2 are provided with sand leakage holes 12 in a staggered manner around the stirring shaft 2, and the sand leakage holes 12 are correspondingly matched up and down by rotating the upper gate 3-1 to realize the opening and closing of the gate 3.

The gate 3 comprises a left gate 3-3 and a right gate 3-4 which are arranged around the stirring shaft 2, and the left gate 3-3 and the right gate 3-4 enclose a space for accommodating the stirring shaft 2; one side of the left gate 3-3 or the right gate 3-4 is pushed to rotate through the air cylinder 11, and the left gate 3-3 or the right gate 3-4 is screwed out according to the direction far away from the stirring shaft 2 to realize the opening and closing of the gate 3.

The invention also discloses a sand mixer, which comprises the vertical sand mixing head, a sand feeding big arm 12, a sand feeding small arm 13 and a base 14; the upper part of the vertical sand mixing head is fixed at the bottom end of a sand feeding small arm 13, and the top end of the sand feeding small arm 13 is connected with a sand feeding big arm 12; the lower parts of the sand feeding big arm 12 and the sand feeding small arm 13 are fixed on a base 14 through a balance weight 15; the motors are fixedly arranged on one sides of the sand conveying big arm 12 and one side of the sand conveying small arm 13, and the conveying of the molding sand is realized by arranging screws in the sand conveying big arm 12 and the sand conveying small arm 13.

The sand feeding small arm 13 is vertical to the axis of the vertical sand mixing head; the axes of the sand feeding big arm 12 and the sand feeding small arm 13 form a certain angle.

In addition, it is worth proposing that the axes of the sand feeding big arm 12 and the sand feeding small arm 13 form a certain angle in order to lift the position of sand particles and match with a lower compaction platform, and in addition, the separated gates 3 can be fixed in the mixing chamber through a detachable bolt connecting device, so that the separation chamber is convenient to clean the mixing chamber.

The above-mentioned embodiments are only for convenience of description, and are not intended to limit the present invention in any way, and those skilled in the art will understand that the technical features of the present invention can be modified or changed by other equivalent embodiments without departing from the scope of the present invention.