JP2005177773A - Vibration type sand mold shakeout method and its apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve such defective points that the balance of weight at the vibrating portion in a vibration type sand mold shakeout apparatus is bad and carry-out ports of a mold auxiliary tool, foreign matter and sand grain are concentrated at the same side. <P>SOLUTION: The vibration type sand mold shakeout apparatus, is provided with a receiving tray mechanism 3, a vibration type separating mechanism 5 and an unbalance weight type vibrating means 6 which is fitted to the vibration type separating mechanism and vibrates the separating mechanism so that a Lissajous figure draws the almost circular by rotating the unbalance weight, and an exciting member 7 and a crushing mechanism 8, and a vibration type sand mold breaking method using this apparatus, is provided. The apparatus separate into the mold auxiliary tool, the foreign matter and the sand grain, respectively by normally and reversely rotating the unbalance weight in the unbalance weight type vibrating means 6. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

The present invention relates to a vibrating sand mold separating method and apparatus, and more specifically, pulverizing a sand mold separated from a casting mold in a sand mold after pouring to form a mold auxiliary tool, foreign matter, foundry sand, etc. The present invention relates to an improvement in the separation method and the apparatus.

  Conventionally, as one of this type of vibratory sand mold spreading device, the present applicant has proposed that a hollow body having an upper end and a lower end is formed and fixedly arranged, and the casting frame is supported in the upper part. A saucer mechanism provided with substantially the same upper surface level as the support member; elastically supported and disposed immediately below the saucer mechanism, crushed sand lump into sand particles, and mold aids, foreign materials, sand particles An unbalanced weight type vibration means that is attached to the vibrating type separation mechanism and vibrates the vibrating type separation mechanism so that the Lissajous figure draws a substantially circle by rotation of the unbalanced weight. A vibrating member that passes through the upper and lower end openings of the tray mechanism and is erected on the vibration-type separation mechanism, and the upper end portion slightly protrudes from the upper surface of the support member to apply vibration to the casting frame; This excitation unit There are those equipped with a; are attached and crushing mechanism for crushing sand mold pieces.

However, in the conventional vibratory sand mold separating device configured as described above, the balance of the weight of the vibrating portion is not good and the chute for carrying out the mold assisting tool, the foreign matter and the sand particles is long. There is a problem that it is difficult to secure a space for installing a device for collecting these because the size is increased, and the mold auxiliary tool, the foreign matter and the sand particle outlet are on the same side. .
JP 2003-15446 A

  The problem to be solved is that the balance of the weight of the vibrating part in the vibratory sand mold spreading device is poor, and the mold auxiliary tool, foreign matter and sand particle outlets are concentrated on the same side.

In order to solve the above-mentioned problems, the vibrating sand mold dispersal method according to the present invention comprises a hollow body having an open upper end and a lower end, and is fixedly disposed. A receiving mechanism that is elastically supported immediately below the receiving mechanism, and is a vibration type that pulverizes the sand lump into sand particles and separates them into mold auxiliary tools and foreign objects and sand particles. A separation mechanism; and an unbalanced weight type vibration means that is attached to the vibration type separation mechanism and vibrates the vibration type separation mechanism so that the Lissajous figure draws a substantially circle by rotation of the unbalance weight; A vibration member that passes through a lower end opening and is erected on the vibration-type separation mechanism, and whose upper end portion slightly protrudes from the upper surface of the support member and applies vibration to the casting frame; and is attached to the vibration member. Sand casting A crushing mechanism for crushing the pieces, and using a vibrating sand mold disperser equipped with; In the separating method of vibrating sand molds to be separated, the unbalance weight of the unbalanced weight type vibrating means is rotated forward and reverse to move the mold auxiliary tool and foreign matter and the sand particles so as to separate each other. Features.

The vibrating sand mold dispersal method of the present invention comprises a hollow body having an upper end and a lower end that are fixedly disposed, and a support member that supports the cast frame is provided in the upper portion with the upper surface level being substantially the same. A vibration-type separation mechanism that is elastically supported and disposed immediately below the tray mechanism, pulverizes the sand lump into sand particles, and separates the mold auxiliary, foreign material, and sand particles from each other; An unbalanced weight type vibration means mounted on the type separation mechanism and configured to vibrate the vibration type separation mechanism so that the Lissajous figure draws a substantially circle by rotation of the unbalanced weight; penetrating the upper and lower end openings of the tray mechanism A vibration member that is erected on the vibration-type separation mechanism and whose upper end protrudes slightly from the upper surface of the support member and applies vibration to the casting frame; and is attached to the vibration member to crush the sand mold piece Crushing mechanism and Using a vibratory sand mold separating apparatus comprising: a sand mold separated from a casting mold in a sand mold after pouring, and separating the mold into auxiliary molds, foreign objects, and sand particles, respectively. In this embodiment, the unbalanced weight of the unbalanced weight type vibrating means is moved forward and reverse to move the mold auxiliary tool and the foreign material and the sand particles away from each other. The mold separating device has a better balance of the weight of the vibrating part, and can be made more compact than the conventional device of this type. Excellent practical effects, such as being able to be separated greatly.

Hereinafter, an embodiment of the present invention will be described in detail with reference to FIG. 1, which is a partially sectional front view. This vibrating sand mold disperser comprises a lower thin hollow body having an open upper end and a lower end, and is fixedly disposed via a plurality of support pillars 1 and 1 and supports a plurality of casting frames F in the upper part. A saucer mechanism 3 having square bar-like support members 2 and 2 having substantially the same upper surface level and a predetermined interval; elastically supported via a plurality of air springs 4 and 4 immediately below the saucer mechanism 3; A vibration separating mechanism 5 that is disposed and pulverizes the sand lump into sand particles, and separates into mold auxiliary tools and foreign materials and sand particles; An unbalanced weight type vibration means 6 that vibrates the vibration type separation mechanism 5 so that the Lissajous figure draws a substantially circle; and a plurality of rod members that penetrate through the upper and lower end openings of the tray mechanism 3 and Standing on the vibration type separation mechanism 5 Parts and vibration member 7 applying vibration to the molding flask F protrudes slightly from the upper surface of the support member 1, 1; is attached to the vibrating member 7 and crushing mechanism 8 for crushing sand mold piece;
It consists of

In the vibration type separation mechanism 5, a box-shaped separation tank 9 is provided, and a plate member 10 provided with a large number of slits of a size through which sand particles can pass is stretched in the lower part of the separation tank 9. Further, the left end which is one side end of the plate member 10 on the side wall of the separation tank 9 has a first discharge port (not shown) for discharging a mold auxiliary tool and foreign matter, A second discharge port (not shown) for discharging sand particles is formed at a position substantially opposite to the first discharge port on the side wall of the separation tank 9 and is located on an extension line of the bottom surface of the separation tank 9. It is. A lid member (not shown) is attached to the first outlet, and a gate member (not shown) is attached to the second outlet. Moreover, the 1st chute | shoot 11 and the 2nd chute | shoot 12 are each mounted | worn in the lower end position of the said 1st discharge port and the said 2nd discharge port in the outer surface of the said separation tank 9.

In the unbalanced weight type vibration means 6, two vibration motors 13, 13 are arranged on the same line on the outer surfaces of the front and rear sides of the separation tank 9 of the vibration type separation mechanism 5 while directing the rotation shaft in the front-rear direction. And the axis of rotation of the vibration motors 13 and 13 includes the plate member 10 and the first and second chutes 11 and 12, the separation tank, the vibration member 7, and the crushing member. Including the mechanism 8, the vibration motors 13 and 13, the casting frame F, and the sand mold after pouring in the casting frame F, passing through the center of gravity of the entire vibrating object supported by the air springs 4 and 4, and The two vibration motors 13 and 13 are configured so that the unbalanced weight rotates at a constant speed in the forward direction in the clockwise direction and the reverse direction in the counterclockwise direction.

Therefore, the separation tank 9 including the plate member 10 and the first and second chutes 11 and 12 is vibrated so that the Lissajous figure draws a substantially circle in the clockwise direction by the normal rotation of the unbalance weight. The auxiliary tool and the foreign matter are vibrated to the first chute 11 and the Lissajous figure is vibrated so as to draw a substantially counterclockwise circle by the reverse rotation of the unbalance weight, thereby transferring the sand particles to the second chute 12. Be able to.

Next, the sand mold is separated from the casting mold F in the sand mold after pouring using the vibratory sand mold spreading device configured as described above, and the separated sand mold is pulverized to mold auxiliary tools and foreign matters. And the procedure to classify into sand particles is described. Under the condition that the first discharge port is closed by the lid member and the opening degree of the second discharge port is set to an appropriate size by the gate member, the casting frame F in the sand mold after pouring is supported by the supporting members 2 and 2. After placing on the top, when the two vibration motors 13 and 13 are driven in reverse to rotate the two pairs of unbalanced weights in the counterclockwise reverse direction at a constant speed, the vibration members 7 and 7 and the crushing mechanism 8. The separation tank 9 including the plate member 10 and the first and second chutes 11 and 12 in the vibration type separation mechanism 5 is vibrated so that the Lissajous figure draws a substantially circle in the counterclockwise direction.

As a result, first, vibrations 7 and 7 are applied to the casting frame F, sand mold and the like in two directions, ie, horizontal and vertical directions. The sand mold is separated from the inside of the casting frame F and dropped onto the crushing mechanism 8, and then the sand mold is crushed into a sand lump state, and then the vibration type separating mechanism 5 It falls into the separation tank 9.

Sand lump, mold auxiliary tool, foreign matter and the like dropped in the separation tank 9 of the vibration type separation mechanism 5 collide with each other, and the sand lump is crushed into sand particles. The sand particles formed into sand particles pass through many slits of the plate member 10 and fall on the bottom surface of the separation tank 9, and then move rightward on the bottom surface to cause the second chute 12 from the second discharge port. It is discharged through. After an appropriate time has elapsed after the above steps have been repeated, when the two vibration motors 13 and 13 are driven in the forward direction to rotate the two pairs of unbalanced weights at a constant speed in the clockwise direction. The separation tank 9 including the plate member 10 and the first and second chutes 11 and 12 in the vibration-type separation mechanism 5 is vibrated so that the Lissajous figure draws a substantially circular shape in the clockwise direction. Mold auxiliary tools, foreign matters, and the like remaining on the member 10 move leftward on the plate member 10 and are discharged from the first discharge port via the first chute 11.

It is a front view of the partial cross section which shows one Example of this invention.

Explanation of symbols

2 Support members

3 saucer mechanism

5 Vibration separation mechanism

6 Unbalance weight type vibration means

7 Excitation member

8 Crushing mechanism

9 Separation tank

10 Plate members

Claims (2)

A saucer mechanism that is fixedly arranged to constitute a hollow body having an upper end and a lower end, and that has a support member that supports the casting frame in the upper part thereof with substantially the same upper surface level; elastically supported directly below the saucer mechanism A vibration separating mechanism for crushing sand lumps into sand particles and separating the mold auxiliary tool, foreign material and sand particles from each other; and attached to this vibration separating mechanism, An unbalanced weight type vibration means for vibrating the vibration type separation mechanism so that the Lissajous figure draws a substantially circle by rotation; and standing on the vibration type separation mechanism through the upper and lower end openings of the tray mechanism An oscillating sand mold having an upper end projecting slightly from the upper surface of the support member and applying vibration to the casting frame; and a crushing mechanism mounted on the oscillating member to crush the sand mold piece. Bulk equipment Used, note was ground with sand molds separated from drag flask sand molds endogenous after hot mold aid, foreign material, in each vibratory sand molds disassembling method for separating sand particles,
A vibrating sand mold dissemination method, wherein the unbalanced weight of the unbalanced weight type vibrating means is moved forward and backward to move the mold auxiliary tool and foreign matter and the sand particles apart from each other. A saucer mechanism that is fixedly arranged to constitute a hollow body having an upper end and a lower end, and that has a support member that supports the casting frame in the upper part thereof with substantially the same upper surface level; elastically supported directly below the saucer mechanism A vibration separating mechanism for crushing sand lumps into sand particles and separating the mold auxiliary tool, foreign material and sand particles from each other; and attached to this vibration separating mechanism, An unbalanced weight type vibration means for vibrating the vibration type separation mechanism so that the Lissajous figure draws a substantially circle by rotation; and standing on the vibration type separation mechanism through the upper and lower end openings of the tray mechanism An oscillating sand mold having an upper end projecting slightly from the upper surface of the support member and applying vibration to the casting frame; and a crushing mechanism mounted on the oscillating member to crush the sand mold piece. Bulk equipment Oite,
The vibration type separation mechanism is provided with a box-shaped main body, and a plate member provided with a large number of slits of a size that allows sand particles to pass through is stretched and attached to the lower part of the main body, and further, on the side wall of the main body. The one side end of the plate member is provided with a first discharge port for discharging the mold auxiliary tool and the foreign matter, and on the extended line of the bottom surface of the main body at a position substantially opposite to the first discharge port on the side wall of the main body. A vibratory sand mold spreading device characterized in that a second discharge port for discharging sand particles is formed.