JPH026042A - Apparatus for removing gate or the like - Google Patents

Abstract

PURPOSE:To efficiently remove unnecessary parts in a casting by controlling while rotating a turn table so as to stop a lower metallic mold laid on the table at placing position of a work, removing position of the unnecessary parts and taking-out position of the work and setting an upper metallic mold above the removing position of the unnecessary parts. CONSTITUTION:The turn table 19 rotating in horizontal plane is arranged in a removing apparatus to the unnecessary parts, such as gate. The placing parts of the lower metallic mold 24 are arranged at least at three positions under the constant intervals on the same circumference of circle on the table. The turn table 19 is controlled while rotating so as to stop the lower metallic mold 24 laid on the table at least at three positions of the placing position of the work, the removing position of the unnecessary parts and the taking-out position of the work in order. Above the removing position of the unnecessary parts, the upper metallic mold 2 for removing the unnecessary parts together with the lower metallic mold 24 is set. By this method, the unnecessary parts can be efficiently removed.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a removal device for removal of unnecessary materials such as removal, riser, and burrs from a workpiece such as a casting.

(Conventional Technique #r) Conventionally, a removal device for removing burrs, risers, burrs, etc. (hereinafter referred to as burrs, etc.) from a work such as a casting has been known.

FIG. 7 shows a conventional seki, etc. removal device.

The removal device 2, such as a seki, is a press device with an upper mold 3 and a lower mold 4 attached thereto. The lower mold 4 is a movable table 5
By moving this table 5, the lower die 4 is moved to the workpiece placement position in front of the removal device such as a shovel (Fig.
a)) and the cross-folding position (FIG. 7(b)) located directly below the upper die 3 of the press device, along the guide.

Then, the workpiece is placed on the lower die 4 at the work device position,
The table 5 is moved to position the lower mold 4 directly below the upper mold 3, and the press device is operated to remove the cracks and the like using the upper and lower molds 3.4. The workpiece from which the stains and the like have been removed is moved again to the workpiece placement position, and the workpiece from which the stains and the like have been removed is exchanged with the unprocessed workpiece.

(Problem to be Solved by the Invention) In the above-mentioned removal device such as a stub, one worker's hands are used in the process from placing the work on the lower mold to breaking the stub of the work and moving it to the work placement position again. It's empty.

In addition, it takes time to replace the workpiece from which the stubble has been removed with the unprocessed workpiece at the workpiece loading position, and during this time the stubble removal device remains stopped, reducing work efficiency. It is also a cause of inferiority.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a removal device for seki, etc., which has good working efficiency.

(Means for Solving the Problems) The present invention has been made in view of the above circumstances, and includes the following configuration.

In other words, it is a removal device for removing unnecessary materials such as a feeder, a riser, and burrs from a workpiece such as a casting, and is equipped with a turntable that rotates in a horizontal plane around a rotating shaft.
The turntable is provided with a mounting section on which the lower mold is placed at at least three places at regular intervals around the same circumference, and the turntable is placed on the mounting section so that the lower mold is placed on the workpiece. Placement position.

At least 3 locations: unnecessary material removal position and workpiece removal position
A rotating mechanism for a turntable is provided to control the rotation so as to sequentially stop at positions, and an upper mold for removing unnecessary materials together with the lower mold is arranged in the direction F of the unnecessary material removal position. do.

Further, the mounting portion is formed on a support frame that is open in the vertical direction, the upper mold is fixed to a base, and the lower mold placed on the support frame is placed on the upper and lower sides of the support frame. A lifting device (lift device) may be installed below the support frame to lift up the workpiece and remove unnecessary materials between the workpiece and the upper mold.

Furthermore, the rotation mechanism of the turntable can be configured as follows. That is, an actuation arm is provided coaxially with the rotation axis of the turntable and rotates freely from the rotation axis, and the tip of the cylinder rod of the actuation cylinder is rotatably connected to the actuation arm so as to be integral with the rotation axis. On the same circumference centered on the rotation axis on the provided engagement member,
Engaging portions are provided at at least three locations at predetermined intervals, and the actuating arm is provided with an engaging means that detachably engages with the engaging portions.

(effect) Next, the operation of the present invention will be described.

The lower mold placed on the mounting portion of the rotating turntable sequentially stops at at least three positions: a workpiece placement position, an unnecessary material removal position, and a workpiece removal position.

In addition, at the unnecessary material removal position, the lower mold with the workpiece placed on it is raised by a lifting device relative to the fixed upper mold.
Unnecessary materials from the workpiece are removed using the upper mold and the -F mold.

The rotation of the turntable is achieved by two actions: the engagement means provided on the actuation arm engages one of the engagement parts, and in this state drives the actuation cylinder to rotate the actuation arm, and the engagement means in this rotational position. The turntable is rotated by sequentially repeating the operation of releasing the means and returning the operating cylinder.

(Embodiments) Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Figure 1 is a front view of the removal device such as seki, Figure 2 is a side view,
FIG. 3 is a plan view.

Supports 12 are erected at the four corners of the base 10, and these supports 12 support a top frame 14.

A rotating shaft 16 is pivotally supported at the center of the base 10 and the center of the ceiling frame 14. At a position slightly below the center of this rotating shaft 16,
A rotating plate 18 (see FIG. 6) having a square planar shape is provided. A key provided in a hole 18a drilled in the center of the rotary plate 18 engages with a keyway of the rotary shaft 16, and the rotary shaft 1
6 and rotating plate 18 rotate together.

Two surfaces of the rotary plate 18 are formed into inclined surfaces 18b that become lower toward each peripheral edge. In addition, the rotating plate 18
The back surface of a U-shaped support frame 20 is fixed to the four side surfaces of the support frame 20 . This support frame 20 consists of an abutment rod 20a that abuts against the side surface of the rotating plate 18, and support rods 20b extending in parallel from both ends of this abutment rod 20a. Contact rod 20
A and the side surface of the rotary plate L8 are provided with stepped portions, engage with each other, and are fixed with bolts or the like. A turntable 19 is constituted by the rotary plate 18 and a support frame 20 provided around the rotary plate 18 (FIG. 6 shows a plan view of the turntable).

A mold jig 22 is supported by the support rods 20b of each support frame 20 of the turntable 19. A jaw portion 22a is provided protruding from the side surface of the mold jig 22, and a support rod 20b supports this jaw portion 22a from below. Further, the lower surface of the jaw portion 22a and the two surfaces of the support rod 20b that contact the lower surface of the jaw portion 22a engage in a concave-convex engagement (not shown).

The upper surface of the mold jig 22 has four parts 22 that hold the lower mold 24.
b is formed, and slopes 22c are formed on all sides such that the slopes become lower from the center toward each side edge.

A gap 26 is formed between the back surface of the mold jig 22 and the rotating plate 18.

The turntable 19 rotates intermittently together with the rotary shaft 16, stopping at every 90 degrees, and stops at four process positions. This rotation mechanism will be described later.

Place the workpiece on the lower mold 24 at the front of the removal device (workpiece placement position A) such as a paper cutter. Remove the seki at position B). Further, the workpiece is taken out at a position rotated by 90 degrees (take-out position C), and after taking out the workpiece, the rotary shaft 16 is rotated by 90 degrees (standby position D). Subsequently, it is rotated 90 degrees and returned to the workpiece placement position.

The operations of each process are performed at these four positions to remove seki, etc.

Next, the operation and configuration of each process will be explained.

At the work placement position A, an operator places the work onto the lower mold 24.

The unnecessary matter removal process at the unnecessary matter removal position B will be described.

At this unnecessary material removal position B, directly below the mold jig 22,
A lift device 28 is provided as a lifting device for pushing up the mold jig 22 (FIG. 2). A hydraulic cylinder 28a constituting this lift device 28 is supported by a frame 30, and a push-up plate 32 is fixed to the tip of the cylinder blond 28c of the hydraulic cylinder 28a. This push-up plate 32 is
It is supported by a guide 29 provided on the frame 30. A protrusion 32a is provided on the second surface of the pressing plate 32, and a recess 22d into which the protrusion 32a fits is formed on the lower surface of the mold jig 22.

Further, the fixing structure 35 of the upper mold 25 will be described here. A support frame 34 is fixed to the lower surface of the ceiling frame 14 above the mold jig 22 (lower mold 24), and a mounting plate 34a is fixed to the lower surface of this support frame 34.

A guide plate 36 extending outward along both edges of the lower surface of the mounting plate 34a is fixed, and a plurality of rollers 37 are arranged on the opposite surface of the guide plate 36 from the back side to the front side of the page. It is set up. The lower side of the substrate 25a of the upper mold 25 is guided by rollers 37 and is movable. and,
In order to fix the mold 25 above the lower mold 24, a pair of fixing cylinders 38 are provided opposite to each other on both sides of the mounting plate 34a. When the cylinder 38 is operated to extend the cylinder rod, the fixed piece 39 rotatably supported on the mounting plate 34a rotates, and the upper mold is inserted between the tip of the fixed piece and the lower surface of the mounting plate 34a. 25 is clamped and fixed.

To remove waste, etc. at the unnecessary object removal position B, the hydraulic cylinder 28a is operated to raise the push-up plate 32.

The push-up plate 32 pushes up the mold jig 22 above the support rod 20b, and the part of the workpiece placed on the lower mold 24 of the mold jig 22 is pressed against the upper mold 25 and removed. Next, the push-up plate 32 is lowered to return the workpiece and mold jig 22 onto the support frame 20. Therefore, unnecessary objects can be removed without applying a large force to the support frame 20.

As mentioned above, the upper surfaces of the mold jig 22 and the rotary plate 18 are formed with tabs 22c and 18b, respectively.
And it slides downward without remaining on the upper surface of the rotary plate 18. The fallen seki etc. are discharged by a discharge mechanism which will be described later.

Here, we will discuss the ejection mechanism of seki etc.

Before and after the lower part of the mold jig 22 at the unnecessary material removal position B,
A mountain-shaped guide plate 70 is provided.

The cows and the like are sorted left and right at the top of the guide plate 70 and fall along the guide plate 70, and are discharged by a belt conveyor 72 provided at the falling position. A side plate 74 (FIG. 2) is also provided on the outside of the belt conveyor 72 to prevent falling cockroaches and the like from jumping out. Also,
The belt conveyor 72 is tilted so that its rear end is raised, as shown by the two-dot chain line in FIG. In addition, the first
The side plate 74 is not shown in the figure.

Next, the structure for taking out the workpiece at the taking-out position C will be explained with reference to FIGS. 3 and 4.

At the take-out position C, two parallel wooden support arms 40 extend outward from the side surface of the top frame 14.

A moving frame 42 is movable by engaging with this support arm 40. That is, two axles 42a are provided which are supported by penetrating the upper part of the moving frame 42.

Guide wheels (not shown) that engage with guide grooves (not shown) provided on opposing surfaces of the pair of support arms 40 are provided at both ends of the axles 42a, 42a, respectively.

A cylinder rod 43 of a drive cylinder 44 fixed to the large frame 14 is connected to one end of the moving frame 42 (upper left end in FIG. 3).

Further, an elevating cylinder 46 is erected at the center of the bottom surface of the movable frame 42, and the tip of the cylinder rod of the elevating cylinder 46 passes through the bottom surface of the movable frame 42 and is connected to the elevating plate 48. The lifting plate 48 is provided with the aforementioned fixing mechanism 35, and the fixing mechanism 35 is provided with a workpiece take-out device 50. Further, the 6-take-out machine 50, in which the guide 49 for lifting and lowering the lifting plate 48 is provided in parallel with the rond of the lifting cylinder 46, is configured such that the L-shaped locking tool 50a can be tilted by a tilting mechanism (not shown). 6. Engage the workpiece in a horizontal position as shown in Figure 4.

The locking tool 50a is tilted to allow the workpiece to fall by its own weight.

In other words, when discharging the workpiece, from the state shown in Figure 4,
The drive cylinder 44 is operated to move the moving frame 42 in the direction of the workpiece (in the direction of the arrow a), and the locking tool 50a is engaged with the workpiece. Then, the elevating cylinder 46 in the moving frame 42 is driven to raise the elevating plate 48 (removal machine 50) (move in the b direction).

Further, the drive cylinder 44 is driven to move the moving frame 42 backward (move it in the direction C). Here, the elevating cylinder 46 is driven to lower the take-out tool 50, and the locking tool 50a is tilted downward to drop and discharge the workpiece.

At the standby position, it is allowed to pass without any particular operation.

Then, return it to the workpiece placement position.

In this way, since each process is proceeding simultaneously, it is possible to efficiently remove seki and the like.

Next, the rotation mechanism of the turntable 19 and the rotating shaft 16 will be explained with reference to FIGS. 3 to 5.

A driving rotating plate 60 is fixed to the upper part of the rotating shaft 16. This rotating plate 60 has a rotating shaft 16 in a hole drilled in the center.
are mated. A turning hole 60a is bored at an upper surface position where the phase of the turning plate 60 is shifted by 90 degrees. An actuating arm 62 for turning that extends in the radial direction directly above the turning plate 60
is rotatably provided on the same axis as the rotating shaft 16.

A cylinder 64 is provided on the upper surface of the tip of the operating arm 62,
A cylinder rod 64a of this cylinder 64 passes through the actuation arm 62 and extends downward. Then, by actuation of the cylinder 64, the rod 64a can be freely placed in and removed from the turning hole 60a of the turning plate 60.

Further, a rod 66a of an actuation cylinder 66 is connected to a protrusion 62a in the middle of the actuation arm 62. This operating cylinder 66 is attached to the ceiling frame 14 via a fixture 65 so as to be rotatable within a horizontal plane.

Furthermore, in FIG. 3, two wooden construction members 78 are located in the central space of the ceiling frame 14 directly below the turning plate 60 so as to sandwich the single rotation shaft 16 therebetween. A support plate 80 is mounted on the construction member 78, and a portion of the construction plate 80 is formed with an extending portion 80a so as to cover the rotation hole 60a of the rotation plate 60. A fixed cylinder 82 is provided on this extending portion 80a, and a rod of this fixed cylinder 82 is connected to the rotating hole 60 of the rotating plate 60.
It is possible to fit into a.

Subsequently, the rotation operation of the one-rotation shaft 16 will be explained.

In FIG. 3, the rod of the fixed cylinder 82 is connected to the rotating plate 6.
The rotating plate 60 is positioned by fitting into the rotating hole 60a of No. 0. In this state, the cylinder rod 6 of the cylinder 64 on the operating arm 62 (the state shown by the solid line in FIG. 3)
4a from the turning hole 64a of the turning plate 60 (FIG. 4 shows the removed state). Then, when the actuating cylinder 66 is actuated to project the cylinder rod, the actuating arm 62 is rotated 90 degrees counterclockwise in the direction of the hour hand, resulting in the state shown by the - dotted chain line. Here, the cylinder rod 64a of the cylinder 64 is projected and fitted into the turning hole 60a of the turning plate 60. On the other hand, the rod of the fixed cylinder 82 is connected to the rotation hole 6 of the rotation plate 60.
Remove from 0a and return the cylinder rod of the 1 operating cylinder 66. Then.

The actuating arm 64 is returned to the position indicated by the solid line, and the rotating plate 60,
This means that the rotating shaft 16 and turntable 19 have rotated 90 degrees.

Thereafter, similar operations are repeated one after another to rotate the rotating shaft 16 and the like by 90 degrees.

The removing device such as a seki constructed as described above consists of four steps of rotating 90 degrees at a time, but the standby step (standby position D) is omitted and the turntable is configured with the rotating plate as an equilateral triangle. However, it may be rotated by 120 degrees. In addition, the number of steps can be reduced to 5 or more.
It goes without saying that many modifications can be made without departing from the spirit of the invention.

(Effects of the Invention) The present invention is configured as described above, and has the following remarkable effects.

Since each predetermined process is performed at a predetermined position during one revolution of the rotating turntable, it is possible to efficiently remove waste materials such as stubble.

Further, unlike conventional removing devices such as a barge, there is no need for another worker to place and take out the workpiece, and the worker's hands are not left unoccupied.

In addition, the mold jig on the turntable is raised using a lifting mechanism at the unnecessary material removal position to remove debris, etc., so that no excessive force is applied to the turntable (the upper mold (Because the lower mold is not lowered to remove burrs, etc., no large force is applied to the lower mold.) Therefore, the weight of the turntable can be reduced, and a large driving force is not required to rotate the turntable.

On the other hand, since a cylinder is used as the drive mechanism for the turntable, the turntable is rotated by a predetermined stroke, so the rotational operation of the turntable is reliable and the structure is simple.

[Brief explanation of the drawing]

Figure 1 is a front view of the removal device such as seki, Figure 2 is a side view,
Fig. 3 is a plan view, Fig. 4 is a partially omitted side view of the removing device such as a barb, Fig. 5 is an explanatory view of the main part showing the drive mechanism of the rotating shaft, Fig. 6 is a plan view of the turntable, and Fig. 6 is a plan view of the turntable. Figure 7 (a), (
b) is an explanatory diagram showing the steps of a conventional device. 10 ・ 14 ・ 18 ・ 19 ・ 20 ・ 24 ・ 28 ・ 32 ・ 46 ・ 60 ・ 72 ・ Base, 12... Support, top frame, 16... Rotating shaft, rotating plate. Turntable. Support frame, 22...Mold jig, lower mold, 25...Upper mold, lift device, push-up plate, 42...Movement frame, lifting cylinder. Swivel plate, 62...operating arm, belt conveyor.

Claims (1)

[Scope of Claims] 1. A removal device for removing unnecessary materials such as burrs, risers, and burrs from workpieces such as castings, comprising: a turntable that rotates in a horizontal plane around a rotation axis; a mounting section for mounting the lower mold at at least three locations at regular intervals on the same circumference of the turntable; and a lower mold with the turntable placed on the mounting section. A turntable rotation mechanism is provided for rotationally controlling the turntable to sequentially stop at at least three positions: a workpiece placement position, an unnecessary material removal position, and a workpiece removal position, and the lower mold and the lower mold are positioned above the unnecessary material removal position. A seki etc. removal device characterized by having an upper mold for removing unnecessary materials. 2. The mounting part is formed in a support frame that is open in the vertical direction, the upper mold is fixed to the base, and the lower mold placed on the support frame is pushed up above the support frame. 2. The shear removing device according to claim 1, further comprising a lifting device provided below said support frame for removing unnecessary materials from the workpiece between said workpiece and the upper mold. 3. The seki etc. removing device according to claim 1 or 2, wherein the lower mold is placed on a support frame via a mold jig. 4. An actuation arm is provided coaxially with the rotation axis of the turntable and rotates freely from the rotation axis, and the cylinder rod of the actuation cylinder is attached to the actuation arm so as to be swingable in a horizontal plane. The distal ends are rotatably connected, and on the engaging member provided integrally with the rotating shaft, engaging portions are provided at at least three locations at predetermined intervals on the same circumference centered on the rotating shaft. and the actuating arm is provided with an engaging means that detachably engages with the engaging portion, and the engaging means provided on the actuating arm engages with one of the engaging portions and in this state. Claim 1, characterized in that the turntable is rotated by sequentially repeating the operation of driving the actuation cylinder to rotate the actuation arm, and the operation of releasing the engagement means at this rotational position and returning the actuation cylinder. 2
Or the seki etc. removal device described in 3.