阅读说明：本技术 一种可根据铸件模型自动填砂的混砂机及其自动填砂方法 (Sand mixer capable of automatically filling sand according to casting model and automatic sand filling method thereof ) 是由 逄宗刚 逄锴悦 周永航 黄福祯 周天波 逄增苗 杨长春 于 2020-07-11 设计创作，主要内容包括：本发明公开了一种可根据铸件模型自动填砂的混砂机及其自动填砂方法,包括主座,大臂的根部通过第一回转支撑固定安装在主座的顶部,此外还在大臂根部临近第一回转支撑处安装第一减速机架,在第一减速机架上安装动力输出轴竖直向下的第一伺服电机,在第一伺服电机的动力输出轴上安装第一小齿轮,该第一小齿轮与上述第一回转支撑的外齿圈相啮合。本发明所公开的混砂机,小臂出砂口在X轴、Y轴方向上实现了自动移动,使混砂机可根据铸件模型的形状对砂箱进行自动填砂,既加快了加砂速度,又减少了人工操作。(The invention discloses a sand mixer capable of automatically filling sand according to a casting model and an automatic sand filling method thereof. According to the sand mixer disclosed by the invention, the small-arm sand outlet automatically moves in the X-axis and Y-axis directions, so that the sand mixer can automatically fill sand into the sand box according to the shape of the casting model, the sand adding speed is increased, and the manual operation is reduced.)

1. The utility model provides a can be according to automatic roller mill of sand filling of foundry goods model which characterized in that: the hydraulic lifting device comprises a main seat, wherein the root part of a large arm is fixedly arranged at the top of the main seat through a first rotary support, a first speed reducing rack is arranged at the position, close to the first rotary support, of the root part of the large arm, a first servo motor with a power output shaft vertically downward is arranged on the first speed reducing rack, a first pinion is arranged on the power output shaft of the first servo motor, and the first pinion is meshed with an outer gear ring of the first rotary support; the bottom of the front end of the big arm is provided with a small arm, the small arm is fixedly connected with the big arm through a second rotary support, the big arm is communicated with the small arm through the second rotary support, a second speed reducing rack is arranged at the position, close to the second rotary support, of the front part of the big arm, a second servo motor with a power output shaft vertically downward is arranged on the second speed reducing rack, a second pinion is arranged on the power output shaft of the second servo motor, and the second pinion is meshed with an outer gear ring of the second rotary support; the first servo motor and the second servo motor are controlled by an electric control system, a sand receiving port for receiving upper-level molding sand is arranged above the large arm, a belt conveying channel is arranged in the large arm, the front end of the belt conveying channel is opposite to the sand receiving port on the large arm, the rear end of the belt conveying channel is opposite to the second rotary support, a stirring cage is arranged in the small arm, the front end of the stirring cage is opposite to the second rotary support, the rear end of the stirring cage is opposite to a sand outlet on the small arm, and a feed inlet which can be connected with a liquid pump is arranged on the small arm opposite to the stirring cage.

2. The sand mixer capable of automatically filling sand according to the casting model as claimed in claim 1, wherein: an access door is installed on one side of the main seat, the first rotary support is fixedly installed on the top of the main seat through a bolt, and a rubber plate is installed in the main seat and adjacent to the first rotary support.

3. The sand mixer capable of automatically filling sand according to the casting model as claimed in claim 1, wherein: the large arm comprises a speed reducer base, a first upper cover plate, a large arm body, a first side cover plate, a perspective hole, a second upper cover plate, a feeding hole, a second side cover plate, a third upper cover plate, a tensioning device cover plate, a tail cover plate, a speed reducer base bottom plate, a driving roller, a bottom flat roller body, an upper flat roller body, a direction-changing roller, a large arm right side end cover bottom plate, a first pressing plate and a second pressing plate.

4. The sand mixer capable of automatically filling sand according to the casting model as claimed in claim 1, wherein: the first speed reducing rack is fixedly arranged on the large arm through a bolt, and the first servo motor is fixedly arranged on the first speed reducing rack through a bolt; the second speed reduction rack is fixedly arranged on the large arm through bolts, and the second servo motor is fixedly arranged on the second speed reduction rack through bolts.

5. The sand mixer capable of automatically filling sand according to the casting model as claimed in claim 1, wherein: the rear end of the small arm is formed by combining a left half part and a right half part which can be opened and closed, the left half part and the right half part are combined together and then are respectively fixed by respective tensioning handles, and door opening handles are respectively arranged on the left half part and the right half part.

6. A sand mixer capable of automatically filling sand according to a casting model according to claim 5, wherein: the forearm comprises an upper cross beam, a front frame, a sand mulling stranding cage supporting wheel, a smell removing cover, a head and tail sand control device, a handle, a locking device rear support, a lower cross beam, a sand mulling stranding cage, a hinge base, a hinge pin shaft, a main hanging bracket, a motor base, an observation port rubber pad, observation port organic glass and an observation port cover plate.

7. An automatic sand-filling method using the sand mixer capable of automatically filling sand according to a casting model according to claim 1, characterized in that: the electric control system controls the first servo motor to operate, so that the first pinion drives the outer gear ring of the first rotary support to rotate, and the large arm is driven to rotate to a proper position around the main seat; the electric control system controls the second servo motor to operate, so that the second pinion drives the outer gear ring of the second rotary support to rotate, and the small arm is driven to rotate to a proper position around the large arm; the molding sand enters the belt conveying channel in the large arm from the sand receiving opening of the large arm and then falls into the stirring cage in the small arm through the second rotary support, the molding sand is fully mixed with the binder and the curing agent which are supplied by the liquid pump through the feed inlet in a certain proportion in the stirring cage, and finally, the molding sand is discharged from the sand outlet of the small arm to fill the sand box.

Technical Field

The invention belongs to the field of resin sand casting production equipment, and particularly relates to a sand mixer capable of automatically filling sand according to a casting model and an automatic sand filling method thereof in the field.

Background

In the current casting field, sand mixers are generally applied to the casting of various self-hardening sands such as cast steel, cast iron, nonferrous metals and the like. The requirement of single-piece small-batch manual molding can be met, and the device can also be configured in a core shooter and a mechanized molding and core making production line for use. The raw sand of the sand mixer is continuously supplied by a sand hopper, the adhesive and the curing agent are supplied by a liquid material pump, when the sand mixer is started, the raw sand and the liquid material are simultaneously supplied and are uniformly mixed within a few seconds, and the sand mixture continuously flows out from a sand outlet on a small arm and directly flows into a sand box to be filled and tightly vibrated, so that the mold core is manufactured. According to the shape of a casting model in the sand filling process of a commonly used sand mixer, workers need to manually swing the small arm to fully fill a sand box with mixed sand without waste, but the manual swing of the small arm is slow in sand adding speed and high in labor intensity.

Disclosure of Invention

The invention aims to solve the technical problem of providing a sand mixer capable of automatically filling sand according to a casting model and an automatic sand filling method thereof.

The invention adopts the following technical scheme:

the utility model provides a can be according to roller mill of automatic sand filling of foundry goods model which improves and lies in: the hydraulic lifting device comprises a main seat, wherein the root part of a large arm is fixedly arranged at the top of the main seat through a first rotary support, a first speed reducing rack is arranged at the position, close to the first rotary support, of the root part of the large arm, a first servo motor with a power output shaft vertically downward is arranged on the first speed reducing rack, a first pinion is arranged on the power output shaft of the first servo motor, and the first pinion is meshed with an outer gear ring of the first rotary support; the bottom of the front end of the big arm is provided with a small arm, the small arm is fixedly connected with the big arm through a second rotary support, the big arm is communicated with the small arm through the second rotary support, a second speed reducing rack is arranged at the position, close to the second rotary support, of the front part of the big arm, a second servo motor with a power output shaft vertically downward is arranged on the second speed reducing rack, a second pinion is arranged on the power output shaft of the second servo motor, and the second pinion is meshed with an outer gear ring of the second rotary support; the first servo motor and the second servo motor are controlled by an electric control system, a sand receiving port for receiving upper-level molding sand is arranged above the large arm, a belt conveying channel is arranged in the large arm, the front end of the belt conveying channel is opposite to the sand receiving port on the large arm, the rear end of the belt conveying channel is opposite to the second rotary support, a stirring cage is arranged in the small arm, the front end of the stirring cage is opposite to the second rotary support, the rear end of the stirring cage is opposite to a sand outlet on the small arm, and a feed inlet which can be connected with a liquid pump is arranged on the small arm opposite to the stirring cage.

Furthermore, an access door is installed on one side of the main seat, the first rotary support is fixedly installed on the top of the main seat through a bolt, and a rubber plate is installed in the main seat and adjacent to the first rotary support.

Furthermore, the big arm comprises a speed reducer base, a first upper cover plate, a big arm body, a first side cover plate, a perspective hole, a second upper cover plate, a feed inlet, a second side cover plate, a third upper cover plate, a tensioning device cover plate, a tail cover plate, a speed reducer base bottom plate, a driving roller, a bottom flat roller body, an upper flat roller body, a turnabout roller, a big arm right side end cover bottom plate, a first pressing plate and a second pressing plate.

Further, a first speed reducing rack is fixedly arranged on the large arm through a bolt, and a first servo motor is fixedly arranged on the first speed reducing rack through a bolt; the second speed reduction rack is fixedly arranged on the large arm through bolts, and the second servo motor is fixedly arranged on the second speed reduction rack through bolts.

Furthermore, the rear end of the small arm is formed by combining a left half part and a right half part which can be opened and closed, the left half part and the right half part are combined together and then are respectively fixed by respective tensioning handles, and door opening handles are respectively arranged on the left half part and the right half part.

Furthermore, the forearm comprises an upper cross beam, a front frame, a sand mixing stranding cage supporting wheel, a smell removing cover, a head and tail sand control device, a handle, a locking device rear support, a lower cross beam, a sand mixing stranding cage, a hinge base, a hinge pin shaft, a main hanging bracket, a motor base, an observation port rubber pad, observation port organic glass and an observation port cover plate.

The automatic sand filling method is characterized in that the sand mixer capable of automatically filling sand according to the casting model is used, and the improvement is that: the electric control system controls the first servo motor to operate, so that the first pinion drives the outer gear ring of the first rotary support to rotate, and the large arm is driven to rotate to a proper position around the main seat; the electric control system controls the second servo motor to operate, so that the second pinion drives the outer gear ring of the second rotary support to rotate, and the small arm is driven to rotate to a proper position around the large arm; the molding sand enters the belt conveying channel in the large arm from the sand receiving opening of the large arm and then falls into the stirring cage in the small arm through the second rotary support, the molding sand is fully mixed with the binder and the curing agent which are supplied by the liquid pump through the feed inlet in a certain proportion in the stirring cage, and finally, the molding sand is discharged from the sand outlet of the small arm to fill the sand box.

The invention has the beneficial effects that:

according to the sand mixer disclosed by the invention, the main seat is fixedly connected with the large arm through the first rotary support, and the first servo motor drives the first pinion to drive the large arm to rotate around the main seat, so that the movement of the small arm sand outlet in the Y-axis direction is realized; the big arm and the small arm are fixedly connected through a second rotary support, and a second servo motor drives a second pinion to drive the small arm to rotate around the big arm, so that the small arm sand outlet can move in the X-axis direction. The small arm sand outlet realizes automatic movement in the X-axis and Y-axis directions, so that the sand mixer can automatically fill sand into the sand box according to the shape of the casting model, the sand adding speed is increased, and manual operation is reduced.

The invention discloses an automatic sand filling method, wherein a main seat is fixedly connected with a large arm through a first rotary support, and the large arm can rotate for 0-180 degrees around the main seat through a first servo motor and a first pinion; the big arm and the small arm are fixedly connected through a second rotary support, and the small arm can rotate for 0-180 degrees around the big arm through a second servo motor and a second pinion; and controlling the sand mixer to automatically fill sand according to the shape of the casting model through an electric control system.

Drawings

FIG. 1 is a schematic structural diagram of a sand mixer disclosed in embodiment 1 of the present invention;

FIG. 2 is a schematic structural diagram of a main seat in the sand mixer disclosed in embodiment 1 of the present invention;

FIG. 3 is a schematic structural diagram of a main view of a large arm in the sand mixer disclosed in embodiment 1 of the present invention;

FIG. 4 is a schematic diagram of a rear view structure of a large arm in the sand mixer disclosed in embodiment 1 of the present invention;

FIG. 5 is a schematic sectional view of a large arm of the sand mixer disclosed in embodiment 1 of the present invention;

FIG. 6 is a schematic structural diagram of a large arm of the sand mixer disclosed in embodiment 1 of the present invention;

FIG. 7 is a schematic structural diagram of a first decelerating frame in the sand mixer disclosed in embodiment 1 of the invention;

FIG. 8 is a schematic structural diagram of a front view of a small arm in the sand mixer disclosed in embodiment 1 of the present invention;

FIG. 9 is a schematic structural view of a sand mixer disclosed in embodiment 1 of the present invention in which the rear end of the small arm is opened;

FIG. 10 is a schematic structural view of a small arm in the sand mixer disclosed in embodiment 1 of the present invention;

fig. 11 is a schematic structural diagram of a second decelerating frame in the sand mixer disclosed in embodiment 1 of the invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.