JPH03200622A - Parts separately feeding device - Google Patents

Abstract

PURPOSE:To perform reliable separation and feed of the parts at a frontmost tip by pressing down a lifter to a floor surface and pulling it back by means of a hydraulic cylinder, in a device to individually separate and feed various parts continuously fed in an aligned state. CONSTITUTION:A feed chute 2 is secured to a mounting bracket 1 in a state that a front part is inclined downward. When parts 30 are introduced in an orderly aligned state, a part 30 at a frontmost tip is collided with a lifter 3 protruded from the floor of the chute 2 and stopped. Through operation of a switching valve 29, an operating rod 6 of a hydraulic cylinder 4 enters the chute 2, the lifter 3 is pressed down by the tip thereof, and the part 30 at a frontmost tip is collided on the lifter 3 with the operating rod 6 and stopped. Through operation of the switching valve 29, the operating rod 6 of the hydraulic cylinder 4 is pulled back, and the lifter 3 is raised through the force of a coil spring 9. The part 30 is slipped down from the lifter 3, pushed by means of an air flow through an air injection nozzle 14, and delivered to the chute 2.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention is used in a parts feeder device, etc., and separates various parts that are aligned and continuously fed into individual parts into a parts feeding head. Related to parts separation and supply equipment for sending out to etc.

<Prior Art> As this type of component separation and supply device, devices with various structures have been known. A device in which a passage is provided in the passage, an actuating rod is slidably disposed in the passage, and individual parts are separated and fed by advancing the actuating rod (
(Japanese Utility Model Publication No. 58-51875), or the claws are arranged so as to enter the conveyance path from the left and right with their positions shifted, and the left and right claws are alternately conveyed to the conveyance path where parts are aligned and continuously supplied. A device that separates and supplies parts by entering the
13429) has been proposed.

<Am to be Solved by the Invention> However, with this type of conventional separating and feeding device, when there is almost no gap between the aligned parts, the separating claws may not be able to enter between the parts, or the welding In the case of parts such as nuts that have protrusions around the periphery, the parts may engage with each other when the actuating rod that pushes them slides, creating the problem that such parts cannot be reliably separated and fed.

The present invention was made to solve the above problems, and even when there is almost no gap between aligned parts or when parts tend to mesh with each other, parts can be reliably separated and supplied. The purpose of the present invention is to provide a parts separation and supply device.

Means for Solving the Problems> In order to achieve the above object, the component separation and supply device of the present invention has a supply chute that introduces components in an aligned state and is arranged at an angle, and a floor in the supply chute. A lifter for lifting the leading-edge part is provided in the section so as to be able to protrude from the floor thereof, a spring is disposed below the lifter for biasing the lifter upward, and an actuating rod is connected to the floor of the supply chute. The actuating rod is connected to a hydraulic cylinder, and when the hydraulic cylinder is actuated, the actuating rod enters the supply chute and moves the lifter to the floor. Configured to be pushed down and pulled back.

<Operation> In this component separation and supply device, when the components are introduced into the supply chute in an aligned state, the most advanced component comes into contact with the end of the lifter protruding from the floor of the chute and stops. Then, due to the operation of the fluid pressure cylinder, the actuating rod enters the chute and pushes the lifter down to the floor with its tip.

The leading part then advances onto the lifter, and when the actuating rod is pulled back from within the chute, the lifter is lifted by the spring and the part slides off the lifter and out of the feed chute. At this time, the second and subsequent parts hit the end of the lifter raised from the floor and stop. Then, once again, as the actuating rod enters the chute and pushes down the lifter, the most advanced part advances onto the lifter, and as the actuating rod is pulled back from within the chute,
The parts are separated and delivered one by one from the supply chute, with the most advanced part sliding down from the top of the lifter.

<Actual #A example> Embodiments of the present invention will be described below based on the drawings.

FIG. 1 shows a cross-sectional view of a component separating and supplying device for separating and supplying weld nuts 30 as components, and FIG. 2 shows a cross-sectional view thereof in the transverse direction.

This component separation and supply device generally has a supply chute 2 connected to a supply path of a component alignment device such as a parts feeder, and has an actuation rod 6 that vertically enters a part of the supply chute 2. A lifter 3 for lifting the most advanced welding head 30 located in the supply chute 2 is installed on the floor of the chute.

The supply chute 2 has a supply path for feeding the welding nuts 30 in a line, and is fixed on the mounting bracket 1 with its front part (feeding side) inclined downward. A plate-shaped lifter 3 is disposed on a part of the floor of the supply channel in the supply chute 2 so as to be movable up and down from the same position as the floor to a protruding position as shown in FIGS. is urged upward by the coil spring 9 below it, and is stopped at the protruding position shown in FIG.

On the base of this lifter 3, there is a state as shown in Fig. 1.
30 welding nuts are placed, but only the most advanced nuts are placed,
In order to prevent the second nut from moving when the lifter 3 is raised, the length L2 of its base is formed to be shorter than the length L1 of the welding nut 30, as shown in FIG.

In addition, there is no cover in the upper part of the lifter 3 in the supply chute 2, and a space 2a is formed, and the thickness of this space 2a is the same as the height of the lifter 3 from the floor. .

An air cylinder 4 having an operating rod 6 is fixed on the supply chute 2 at a position where the operating rod 6 vertically enters directly above the lifter 3 from the space 2a. A cylinder case 4a of the air cylinder 4 is integrally formed from a lower mounting part to a cylinder part, and a piston 7 is fitted into the cylinder case 4a. An actuating rod 6 is fixed to the piston 7 with a nut 13, and the tip of the actuating rod 6 can protrude into the supply chute 2 from the lower part of the air cylinder 4. The actuating rod 6 is slidably supported by a bearing 17, and a gap around the actuating rod 6 is provided by a sealing member 15.
Sealed by.

Furthermore, a coil spring 8 for biasing the piston 7 upward is disposed below the piston 7 in the cylinder case 4a. On the other hand, a head cover 5 is placed over the top of the cylinder case 4B and fixed airtight using a seal member 16, and a flanged push-down pin 10 is disposed within this head cover 5 so as to be movable up and down. moreover,
The coil spring 11 is arranged so as to bias the push-down pin 10 downward, and the push-down pin! 0 can be lowered until it hits the stop ring 12.

Note that a coil spring 11 biases the push-down pin 10 downward.
The biasing force is set to be larger than the force of the coil spring 8 that biases the piston 7 upward. Therefore, when no air pressure is applied to the air cylinder 4, as shown in FIG. However, the piston 7 and the actuating rod 6 stop at a position where their upper ends contact the lower ends of the push-down pins 10.

The cylinder case 4a and the head cover 5 are provided with ports 23 and 22 for air supply and exhaust, and these ports 23 and 22 are
As shown in FIG. 3, it is connected via a switching valve 29 to a source of compressed air.

Furthermore, an air jet hole 14 for air pressure feeding is provided in the lower part of the air cylinder 4 toward the front inside the chute 2, and a port 20 of the air jet hole 14 is connected to a switching valve 29 in the same way as the port 23 described above. road is connected. Note that the air jet hole 14 may be provided at the rear of the actuating rod 6, as shown by the imaginary line in the figure.

The component separation and supply device configured in this way is tilted and fixed in a fixed position via the mounting bracket 1, and its end is connected to the supply path of the component alignment device in the parts feeder, and the front end thereof has a supply path. It is installed so that the parts supply head is connected through the.

Next, the operation of the component separation and supply device having the above configuration will be explained.

As shown in FIG. 1, the welding nuts 30 are fed into the supply chute 2 in an aligned state from the upstream supply path, and the most advanced nut 3
0 comes into contact with the actuating rod 6 and is stopped. In this state,
When pressurized air is applied into the cylinder from the port 23 of the air cylinder 4, the piston 7 pushes up the push-down pin 10 so as to compress the single coil spring above it, as shown in FIG. The tip of the actuating rod 6 is completely pulled back from inside the chute 2 into the air cylinder 4.

Then, only the most advanced welding nut 30 on the lifter 3 slides down, and is pushed by the air flow C from the air jet hole 14.
It is sent forward from within the supply chute 2. At this time, since the lifter 3 protrudes upward due to the biasing force of the coil spring 9, the second and subsequent welding nuts 30 come into contact with the end of the lifter 3 and are stopped.

Next, the switching valve 29 is switched as shown in Fig. 3, pressure air is applied to the port 22 of the air cylinder 4, and when the port 23 side is opened, the piston 7 compresses the coil spring 8 as shown in the figure. The operating rod 6 descends and protrudes into the chute 2, and its tip pushes down the lifter 3 to the floor of the chute 2. Then, the most advanced welding nut 30, which had hit the end of the lifter 3 and stopped, slides and slides onto the lifter 3.
It hits the actuating rod 6 and stops, and the entire nut row from the second onwards also moves forward and stops (FIG. 3).

Next, when the switching valve 29 is switched and pressurized air is applied to the port 23 of the air cylinder 4 and the port 22 side is opened, the piston 7 rises and the operating rod 6 is pulled back into the cylinder. At this time, the lifter 3
The force causes it to rise to the position shown in Figure S1, thereby lifting the most advanced welding nut 30 on top of the lifter 3 and separating it from the second welding nut 30.

Then, similarly to the above, the piston 7 and the actuating rod 6
When the state shown in FIG. 1 shifts to the state shown in FIG. 4 and the tip of the operating rod 6 is completely pulled back into the cylinder again, only the most advanced welding nut 30 slides down from the lifter 3 and the supply chute 2. The welding nuts 30 are pushed out by the air flow at the front, and the second and subsequent welding nuts 30 stop when they hit the end of the lifter 3.

In this way, the switching of the switching valve 29 is repeated, and the operating rod 6 is repeatedly lowered and raised by the operation of the air cylinder 4, so that only the most advanced nuts of the welding nuts 30 introduced in an aligned state are separated one after another. , sent forward.

Note that when the supply of pressurized air that has been applied to the air cylinder 4 is stopped, such as when the parts feeder is stopped or when there is an emergency stop, as described above, due to the action of the coil spring 8 and the coil spring 11 (the coil spring 11 is stronger than the coil spring 8), the piston 7, that is, the actuating rod 6, stands still with its tip protruding into the supply chute 2, as shown in FIG. Therefore, even if the supply of pressurized air is stopped in the state shown in Fig. 3, the state shown in Fig. 1 will occur, and the most advanced welding nut 30 will hit the tip of the operating rod 6 and be stopped, and the welding will continue. It is possible to prevent the nut 30 from accidentally slipping down. <Effects of the Invention> As explained above, according to the component separation and supply device of the present invention, the supply chute for introducing the components in an aligned state is arranged at an angle. , a lifter for lifting the most advanced component is provided on the floor of the supply chute so as to be able to protrude from the floor surface, a spring is disposed below the lifter for biasing the lifter upward, an actuation rod is disposed substantially perpendicular to the floor of the supply chute with its tip facing the upper surface of the lifter, and the actuation rod is connected to the fluid pressure cylinder;
The operating rod is configured to enter the supply chute and push the lifter down to the floor and be pulled back by the operation of the fluid pressure cylinder. When advanced to the top and then pulled back on the actuating rod, the lifter rises to ensure that only the most advanced part is lifted and separated from the second part. Therefore, even if there is no gap between the aligned parts, or even if adjacent parts like weld nuts tend to mesh with each other, the most advanced part can be reliably separated and sent out.

In addition, if a push-down pin and spring are installed in the fluid pressure cylinder to push down the operating rod so that it protrudes into the supply chute when the fluid pressure is stopped, the operating rod will be inside the chute when the equipment is stopped or in an emergency stop. This prevents parts from accidentally slipping down.

[Brief explanation of drawings]

The figures show one embodiment of the present invention, FIG. 1 is a cross-sectional view of the component separation and supply device, FIG. 2 is a cross-sectional view of TI = If in FIG. 1, and FIG. 3 is a cross-sectional view when the operating rod is extended. FIG. 4 is a sectional view when the actuating rod is pulled back. 2... Supply chute, 3... Lifter, 4... Air cylinder, 6... Operating rod, 9... Coil spring. Patent Applicant Yajima Giken Co., Ltd. Figure 2

Claims (2)

[Claims] (1) A supply chute for introducing parts in an aligned state is arranged at an angle, and a lifter for lifting the most advanced part is provided on the floor of the supply chute so as to be able to protrude from the floor surface, and A spring for biasing the lifter upward is disposed below the lifter, and an actuation rod is disposed substantially perpendicular to the floor surface of the supply chute with its tip facing the upper surface of the lifter, The actuation rod is connected to a hydraulic cylinder, and the actuation rod is configured to advance into the supply chute, push the lifter down to the floor, and pull it back. Parts separation and supply equipment. (2) The component separation and supply device according to claim 1, wherein a push-down pin and a spring are disposed in the fluid pressure cylinder to push down the operating rod so as to protrude into the supply chute when the fluid pressure is stopped.