JPH0848425A - Specified parts quantity take-out device - Google Patents

Abstract

PURPOSE:To take out a specified quantity of small-sized, light-weight parts accurately and rapidly. CONSTITUTION:A part pushing device 2 guided liftably by a guide 3 is set in a hopper l, an air blowing port is provided at a position opposed to the top end part of a grooved chute 5 by which parts are held in neck suspended state and slid off, a constant take-out device 10 is set reciprocatedly in a direction crossed in the downstream of the chute, and a stopper 14 of which top end is provided at a position where the head part of a specified number of parts held by the chute in neck suspended state is divided is provided on the constant take-out device. Also a member to make the chute resilient when the constant take-out device is moved is provided. Then a bolt is transferred by a push-up device and, when it is fallen on the chute, air is blown and the under-neck of the bolt is dropped into the groove of the chute. When the constant take-out device 10 is moved, specified number of bolts in the chute is vibrated by a resilient member attached to the constant take-out device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for taking out a specified quantity of bolts or parts having a shape similar to bolts.

[Prior art]

Japanese Utility Model Application Laid-Open No. 62-25166 discloses a chute having a space slightly wider than the diameter of the neck of the screw and supporting the screw in a hanging state and slanting so as to slide down. It has a hopper part that aligns and supplies the screws, a separating device that separates the screws one by one on an inclined chute and slides them down, and a screw receiving part that captures and holds the screws that slip off. A detector for detection is provided, and the separation device is activated by receiving no screw signal,
A screw supply device for supplying screws to the screw receiving portion one by one is described.

Further, Japanese Utility Model Laid-Open No. 2-64527 discloses that
The aligning means for aligning the screws in the hopper in series, the chute for letting the aligned screws flow down, the take-out number setting means for setting the number of screws taken out once from the take-out port of the chute, and the receiving parts such as hands are provided. Described is a constant quantity take-out device for screws, which has a shutter sensor for detecting the approach to the take-out port, and an outlet means for allowing the number of taken-out screws in the chute to flow down from the take-out port by the detection operation of the shutter sensor. The aligning means for aligning in series has a structure in which the base installed in the hopper is oscillated and pivoted to laterally align the screws in the circumferential direction to align the screws in series and feed them to the arc-shaped alignment chute. It is shown.

[0004]

In the above-mentioned conventional feeder for feeding screws, etc., when the diameter of the feeding screws, etc., is 12 mm or less, when they are made to flow down to the chute in the hopper,
The neck of the screw etc. does not enter the groove of the chute and accumulates,
It may stop flowing. Also, since the screws and the like are light weight, it stops in the middle of the chute and does not flow down, or when the constant number is taken out, it starts to flow down from the stopped state, so it takes time, and 1-2 pieces remain in the chute, It may not be possible to retrieve the constant. If the inclination of the chute is increased to prevent this, screws or the like may jump out of the chute and fall.

In the screw constant quantity take-out device disclosed in Japanese Utility Model Laid-Open No. 2-64527, a pressing plate for preventing the jumping out of the screws is installed above the chute. However, if the pressing plate is installed above the chute, it will be a restriction when installing the take-out number setting means and the like in the middle of the chute, and it will hinder the visual confirmation that screws are flowing down the chute normally. Become.

According to the present invention, even if a bolt or a part having a shape similar to the bolt is small and lightweight, the specified quantity can be accurately and quickly taken out, and the device can be simply constructed. It is an object of the present invention to provide a device for taking out a quantity of parts.

[0007]

SUMMARY OF THE INVENTION According to the present invention, a push-up tool is installed in a hopper that is supported by an upper surface to lift a component stored in a hopper and guided by a guide so as to hold the component in a hanging state. A grooved chute that slides down is installed over the outside of the hopper from the side of the upper end of the guide of the lifting tool, and a constant quantity extractor is installed in the downstream part of the chute. The guide of the tool has an open side surface, a leaf spring is provided on the surface in a direction crossing one side surface of the lifting tool, and an air outlet is provided at a portion of the upper end of the chute opposite to the groove. The take-out device is installed so as to be capable of reciprocating in a direction traversing the chute, and the constant take-out device is provided with a stopper having a tip at a position for partitioning heads of a predetermined number of parts held in a hanging state on the chute, and A component defining quantity extraction device provided with a member for Tamabachi the chute upon movement of the several dispensing device.

[0008]

[Function] When parts such as bolts accumulated at the bottom of the hopper are scooped up by the upper surface of the lifting tool, the parts supported on the upper surface of the lifting tool in a horizontal position are provided on the guide during the lifting of the lifting tool. Most of the bolts that are thrown off by the leaf spring and conveyed to the rising end of the lifting tool are the bolts in the inverted posture with the head down. When the push-up tool reaches the ascending end and descends, the bolt falls and its threaded portion is caught in the groove of the chute. At this time, air is blown out from the air supply pipe to drop the underside of the bolt into the groove of the chute, and the head of the bolt is supported by the upper surface of the chute and slides down in a hanging state. The bolts that have slid down the chute hit the inner wall of the constant number extractor and stop, and by repeating this operation, a large number of bolts are aligned and held on the chute. When you take out a certain number of bolts, move the constant number extractor, and the stopper will enter into the row of bolt heads held by the chute to prevent the bolts on the upstream side from flowing down, and then the outlet of the constant number extractor. Moves to the lower end of the chute, and a predetermined number of bolts on the downstream side of the stopper are discharged. At this time, the elastic member attached to the constant number extractor vibrates the chute, and even if the bolt is small and lightweight, it is not supported in the middle of the chute, and the sides of the heads of the bolts contact each other. Are arranged as follows.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an overall explanatory view of an embodiment of the present invention, a part of which is shown in cross section. A push-up tool 2 penetrating the bottom of the hopper 1 is installed so as to be vertically driven by a cylinder 4 along a guide 3 supported by the hopper 1. A chute 5 is installed, which is slightly wider than the diameter below the neck, supports the bolt in a hanging state, and is inclined so as to slide down. An air supply pipe 6 is provided above the upper end of the chute 5, and a pair of leaf springs 7 are arranged on the opening side surface of the guide 3 along the side surface of the push-up tool 2 so as to horizontally cross. The constant take-out device 10 is installed at the lower end of the chute 5, and the chute 5 is mounted on the chute 5 with the cylinder 11.
Is made movable in the horizontal direction, and a take-out cylinder 20 is provided on the outlet side of the constant take-out device 10.

First, the outline of the operation of the entire apparatus will be described with reference to FIG. Cylinder 4 from the position shown by the dashed line in the figure
When the push-up tool 2 is lifted by operating, the bolts accumulated at the bottom of the hopper 1 are scooped up by the upper surface of the push-up tool 2. If the bolt is held on the upper surface of the push-up tool 2 in an inverted posture with its head down, the bolt passes through the leaf spring 7 when the push-up tool 2 rises, but the bolt in the sideways posture does not. Most of the bolts that are scraped off and transported to the rising end of the push-up tool 2 are bolts in an inverted posture with their heads facing down.

Since the upper surface of the push-up tool 2 is inclined toward the chute 5, when the push-up tool 2 reaches the ascending end and descends from there, the bolt falls and its threaded portion is caught in the groove of the chute 5. . At this time, air is blown from the air supply pipe 6 to drop the bottom of the bolt into the groove of the chute 5, and the head of the bolt slides down the chute 5 with its head supported by the upper surface of the chute 5. The bolts that have slid down the chute 5 hit the inner wall of the constant number take-out device 10 and stop, and by repeating this operation, a large number of bolts are aligned and held on the chute 5.

When the predetermined number of bolts are taken out, the cylinder 11 is operated and the constant take-out device 10 with the stopper 14 is attached.
Is moved in the direction perpendicular to the plane of the drawing, the stopper 14 enters the row of bolt heads held by the chute 5 to prevent the upstream bolt from flowing down, and then the outlet of the constant take-out device 10 is moved to the lower end of the chute 5. Move to the part, stopper 14
A predetermined number of bolts on the further downstream side fall into the take-out cylinder 20. The take-out cylinder itself is a known one, and for example, when the palm is pressed against the lower part of the cylinder and pushed up, a predetermined number of bolts can be received by the palm.

Next, details of the operation for supplying the bolt from the hopper 1 to the chute 5 will be described with reference to FIGS. 2 and 3. FIG. 2 is a perspective view showing a state where the push-up tool 2 is in the middle of ascending. When the bolts W accumulated at the bottom of the hopper 1 are scooped up by the upper surface of the push-up tool 2, the upper surface of the push-up tool 2 is As shown in FIG. 2A, some bolts W are held in an inverted posture with their heads facing down, and some are in a sideways posture. When the push-up tool 2 further rises as shown in FIG. 2B, the upper surface of the push-up tool 2 is an inclined surface 2a that inclines toward the chute 5 side, so that the bolt in the inverted posture rises along the guide 3 and leaves the leaf spring. The bolt W in the sideways posture after passing through 7 is blown off by the leaf spring 7 and is conveyed to the rising end of the push-up tool 2 mostly because the bolt W in the inverted posture with the head down. Become.

FIG. 3 is a perspective view showing a state where the push-up tool 2 is raised to its upper end position and the under-necked screw portion of the bolt W is dropped into the groove of the chute 5, and as shown in FIG. 3A, Since the upper surface of the push-up tool 2 is an inclined surface 2a that inclines toward the chute 5, when the push-up tool 2 reaches its ascending end and descends from there, the bolt W falls toward the chute 5 side and its threaded portion It hangs on the groove of the chute 5. At this time, air is blown out from the blowout port 6a of the air supply pipe 6 installed above it,
The threaded portion under the neck of the bolt W is dropped into the groove 5a of the chute 5. As shown in FIG. 3B, the bolt W shoots the head 5
It is supported by the upper surface and slides down the chute 5.

A bolt guide 2b is provided on the upper surface of the push-up tool 2. In FIG. 3A, the guide 2b having a convex piece on the left side.
However, similar guides may be provided on the right side and the middle portion of the push-up tool 2. The bolt may be supported by the push-up tool 2 in an upright state, and the bolt may pass through the leaf spring 7. If the bolt falls to the chute side and the threaded portion under the neck thereof does not enter the groove 5a of the chute 5, the bolt is blown off by the air, falls into the hopper 1, and is recirculated.

Next, the details and operation of the bolt constant extracting mechanism will be described with reference to FIG. FIG. 4 shows the shoot 5.
1 is a perspective view of the downstream portion of FIG. 1 viewed from the X direction, the bolt W sliding down the chute 5 is shown in FIG. 4A.
The chute 5 is blocked by the wall on the downstream side of the constant number extractor 10.
There are many rows with the head on top. The chute 5 has an upper end supported by a support 8 attached to the hopper 1, and a leaf spring 9 is provided at a lower end of the support 8 so as to project therefrom.

To take out a predetermined number of bolts, the cylinder 11 shown in FIG. 1 is operated to move the constant take-out device 10 to the right in the figure by the rod 12 thereof. A leaf spring 13 is attached to the upstream side wall of the constant number take-out device 10, and a leaf spring 9 attached to the lower end of the support 8 of the chute 5 is provided so as to project in the movement path thereof. Flips the leaf spring 9 to vibrate the chute 5. As a result, even if the bolt is small and lightweight, it is not supported in the middle of the chute 5, and the bolts W are aligned so that the sides of their respective heads contact each other.

When the constant ejector 10 moves further to the right, the tip of the stopper 14 attached to the side wall of the constant ejector 10 enters into the row of bolt heads held by the chute 5, as shown in FIG. 4B. Prevents the upstream bolt from flowing down. Since the distance between the tip of the stopper 14 and the inner wall on the downstream side of the constant number take-out device 10 is set to a predetermined number of times the length of the opposite side of the bolt head, as shown in FIG. The predetermined number of bolts on the side is the outlet 15.
It falls from the take-out cylinder 20. At this time, the stopper 14
The inclined surface 14a on the inner surface of the lower part pushes the bolt down along the chute 5, and the bolt vigorously slides down the chute 5, so that the bolt does not stay in the chute 5, and a predetermined number of bolts are retained in the take-out barrel 20. Definitely supplied. Next, the constant number take-out device 10 returns to the position shown in FIG. 4A, and at this time also, the leaf spring 9 and the leaf spring 13 come into contact with each other to vibrate the chute 5 so that the bolts supported by the chute flow down and are aligned. Promote.

In the above embodiment, the specified quantity of hexagon head bolts is taken out. However, the present invention is not limited to this, and it is of course applicable to round head screws and the like. Although the bolts are simultaneously conveyed, the number of bolts may be one or three or more. Furthermore,
Although the leaf springs are installed on both the constant pick-up device 10 and the chute support tool 8, an elastic repulsion mechanism that gives vibration to the chute when the constant pick-up device is moved is used. A leaf spring may be provided on only one of the supports 8.

[0020]

According to the present invention, even if a bolt or a part having a similar shape is small and lightweight, it does not cause any support when supplying the part to the chute, and the part in the chute slips off. Is reliably performed, and the heads of the parts are aligned without gaps on the chute in the constant number take-out device. Therefore, the structure of the device is simple, and accurate specified quantity of parts can be quickly taken out.

[Brief description of drawings]

FIG. 1 is an overall explanatory view of an embodiment of the present invention.

FIG. 2 is a perspective view of a component lifting portion.

FIG. 3 is an explanatory diagram of a supply unit for a chute.

FIG. 4 is an explanatory diagram of a constant extraction unit.

[Explanation of symbols]

1 Hopper 2 Push-up tool 3 Guide 4 Cylinder 5 Chute 6 Air pipe 7 Leaf spring 8 Support 9 Leaf spring 10 Constant extractor 13 Leaf spring 14
Stopper

Claims (4)

[Claims] 1. A push-up tool is installed in the hopper that is guided up and down by a guide to support the component stored in the hopper and raises the component while supporting the component on the upper surface, and the grooved chute for holding the component in a hanging state and sliding it down. A device for extracting a specified quantity of parts, which is installed from the upper end side of the guide of the lifting tool to outside the hopper, and has a constant number extractor installed in the downstream part of the chute, and is of a chute that contacts the upper end of the guide of the lifting tool. An apparatus for extracting a specified quantity of parts, characterized in that an air outlet facing the chute groove is provided above. 2. The device for extracting a specified quantity of parts according to claim 1, wherein an open side surface is formed on the guide of the push-up tool, and a leaf spring is provided on the surface in a direction crossing the one side surface of the push-up tool. 3. The constant take-out device is installed so as to be capable of reciprocating in a direction traversing the chute, and the constant take-out device has a tip at a position for partitioning the heads of a predetermined number of parts held in a hanging state on the chute. 2. The parts specified quantity take-out device according to claim 1, wherein a stopper is provided and a member that repels the chute when the constant take-out device is moved is provided. 4. A stopper provided on the constant number extractor,
The device for extracting a specified quantity of parts according to claim 3, wherein an inner surface of the chute is formed so as to be inclined in the downstream direction of the chute.