JPS6035568Y2 - Inclined drop loader - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an inclined drop loader that automatically introduces blanks, such as round bars with flanges (bolts, rivets, etc.), into a processing machine in order to perform various processing on the blanks.

When threading a blank, for example a round bar with a flange,
The blank is fed vertically into the chute, and the blank is fed through the blank feeding opening of the fixed plate provided at the end of the chute.
The blanks were fed one by one into a concave blank receiver on a rotating slide, and then the rotating slide was rotated to change the direction of the blank to a horizontal state, and the blanks were fed to an automatic processing machine for the next process for processing.

The rotary slide in conventional devices is arranged to rotate inwardly about a pivot axis at one point, and the rotational movement is arranged by a cylinder rond of a cylinder pivoted at another point. Therefore, the direction of the cylinder must be arranged so that it is displaced according to the rotational position of the rotary slide, and as a result, the movement of this part is not smooth, and the feeding is not smooth as a whole. When the blank receiving part 3 of the rotating slide 2 is supplied from the chute, since the blank receiving part 3 is formed to form a vertical concave surface over its entire length, as shown in FIGS. 1 and 2, However, there was a drawback that the blank 1 was caught between the rotary slide 2 and the fixed plate 4, which hindered the operation of the rotary slide.

The present invention was devised to solve the above-mentioned conventional drawbacks, and the blanks fed from the chute are always transferred to the rotating slide side, and the rotating slide is pivoted at one point. The bark is designed to have a special rotational movement independent of an axis, and the above-mentioned rotational movement is performed by a cylinder fixed in a certain direction, so that the operation of the feeding device is extremely smooth and the operation of the rotating slide is improved. The purpose of the present invention is to provide a tilt-type drop loader that allows continuous operation without being obstructed.

The embodiment of the present invention shown in the drawings will be explained below.
In FIG. 3, reference numeral 10 is the main body of the automatic feeding device.

The device main body 10 includes a vertically arranged fixing plate 11 and a horizontal plate 12.The device main body 10 is attached to the fixing member 13 with an inclination angle of 5° in this example. 10 is slanted entirely to the left in FIG.

The device main body 10 includes a blank escapement mechanism 1.
4 and a supply mechanism 15 are provided.

The escapement mechanism 14 is equipped with a chute 16.

The chute 16 is barked from a pair of guide plates 17.18 which are attached at one end to the fixed plate 11, as can be seen in FIG.

The chute 16 is installed with an upward slope to the right in FIG.
Guided to fall.

The blank 19 is supplied in a vertical state.

An escapement mechanism 14 is located at the terminal end of the chute 16.

Escapement mechanism 14 is shown in detail in FIG.

The mechanism 14 has a cylinder block 20, and the inside of the cylinder block 20 is divided into two chambers.

A piston 22 is housed in one chamber 21, and its piston rod 23 projects outside the cylinder block 20.

Note that the reference numeral 24 is a spring.

The cylinder chamber 21 is connected to an air source (not shown) via a hole 25.

A pusher 26 is fitted into the other cylinder chamber 21a and receives the force of a spring 26b.The pusher 26 projects outside the cylinder block 20, and a portion of the pusher 26 can move in and out of the chute 16. ing.

A lever 27 is provided at the protruding end of the pusher 26.
A shutter 28 is fixed to the lever 27.

This shutter 28 can be freely moved in and out of the chute 16, and allows the blank 19 to pass through the chute 16 by one inch.

The piston rod 23 is configured to press the lever 27.

The blank redirection feed mechanism 15 is shown in detail in FIGS. 4, 8-10.

The mechanism 15 is arranged between a pair of fixed plates 11.

A supply port 29 is vertically provided in the fixed plate on the chute 16 side, and the blank 19 passed by the shutter 28 is supplied to the supply mechanism 15 through the supply port 29 .

The supply mechanism 15 includes a rotary slide 30.

The rotary slide 30 is provided with a concave blank receiving portion 31 on its chute 16 side surface.

The rotating slide 30 is actuated by a main cam roller 32.

The main cam roller 32 is guided by a cam groove 33 provided in the fixed plate 11, and the main cam roller 32 is connected to a rod 35 of an air/hydraulic cylinder 34.

As shown in FIG. 8, the rotary slide 30 has the blank receiving portion 31 formed on one end thereof, and a sub-cam roller 36 on the bulging portion on the opposite side.

This sub-cam roller 36 is guided by an angled sub-cam groove 37 formed in the fixed plate 11.

Next, the operation will be explained. Blanks 19 to be processed are fed to the chute 16 in tandem.

In this case, since the shutter 28 has entered the chute 16 as shown in FIG. 5, the blank 19 is prevented from falling further by the shutter 28.

That is, by introducing air pressure into the block chamber 21 through the hole 25, the piston 22 is pushed against the acting force of the spring 24, so that the piston rod 23 moves the lever 27 downward in FIG. Press.

As a result, the shutter 28 enters into the chute 16 and prevents the blank 19 from moving.

At the same time, the lever 27 engages the engagement step 26 of the pusher 26.
By applying an upward force to the spring 26a in FIG. 5, the pusher 26 is pushed into the block chamber 1 against the force of the spring 26b.

Therefore, when the air pressure in the block chamber 21 is released, the piston 22 is moved upward in FIG. 5 with the restoring force of the spring 24, so that the piston rod 2
3 is drawn into the block chamber 21.

However, the lever 27 becomes free and the pusher 26
is pushed out of the block chamber 21 by the action of the spring 26b.

Therefore, the lever 27 is rotated clockwise in FIG. 5, and the shutter 28 is retracted from the chute 16.
The first blank 19, which had been blocked from passing until now, is now in a state where it can be passed.

Along with this operation, the pusher 26 enters into the chute 16 and presses the blank 19a next to the passable blank 19 (see FIG. 6).

Furthermore, by injecting air pressure into the block chamber 21 again, the shutter 28 enters into the chute 16 again, and the pusher 26 is retracted from the chute 16 (
(See Figure 7).

The blank 19 allowed to pass as described above is fed into the blank receiving portion 31 of the rotary slide 30 from the supply port 29 .

In this case, the entire blank receiving part 31 is connected to the supply port 29.
Due to the opposite slope, the blank 19 fits snugly into the receiving part 31 and is not located between the rotary slide 30 and the fixed plate 11.

Thus, by operating the rod 35 of the cylinder 34, that is, by moving the main cam roller 32 downward in FIG. 8, the rotary slide 30 is rotated counterclockwise in FIG. The blank 19 is rotated by 90 degrees as shown in the drawings and FIG. 10, and then the blank 19 is turned and automatically fed to the next processing machine as shown in FIG.

That is, the main cam roller 32 fixed to the rotating slide 30
As the main cam groove 33 and the sub cam groove 37 are moved downward in FIG. 8, the rotary slide 30 moves downward while rotating due to the relative positions of the main cam groove 33 and the sub cam groove 37.

The rotary slide 30 normally exhibits a rotational movement around one point and a different movement line, and can change the posture of the blank 19 from a vertical position to a horizontal position, and then move it straight downward to the processing machine. .

In the present invention, as explained in detail above, the rotary slide is rotated by a special cam mechanism, so the operation is extremely smooth, and the rotary slide is rotated in the opposite direction to the blank supply direction. The slight angle of inclination ensures that the blanks fed from the chute through the feed port are completely accommodated in the concave blank receiving portion of the rotary slide.

Therefore, there is no risk that the blank will protrude from the blank receiving portion and get caught on the fixed plate, thereby impeding the rotational movement of the rotary slide, and there is an advantage that continuous operation can be performed with smooth rotational movement at all times.

[Brief explanation of the drawing]

1 and 2 are partial sectional views of a conventional device in which the blank obstructs the movement of the rotating slide, FIG. 3 is a perspective view of the device according to the present invention, and FIG. 4 is a vertical sectional view of the feeding mechanism. FIGS. 5 to 7 are cross-sectional views of the blank escapement mechanism, and FIGS. 8 to 10 are views of the blank direction changing and supplying mechanism. Explanation of symbols: 15 is a direction changing mechanism; 19 is a blank;
29 is a supply port, 30 is a rotary slide, 31 is a blank receiver, 32 is a main cam roller, 33 is a main cam groove, 34 is a vertical movement means, 36 is a sub cam roller, and 37 is a sub cam groove.

Claims (1)

[Scope of utility model registration request] It consists of a pair of guide plates 17 and 18 fixed to the device main body 10, which face each other in parallel with a slight gap, and the upper edges of each of the guide plates 17 and 18 are also parallel and inclined. A chute 16 is provided,
At the lower end of the inclination of the chute 16, a plate is provided, the surface of which is slightly inclined to the opposite side of the chute 16 from the vertical, and on the surface of the plate relative to the lower end of the guide plate 17.18. Forming a groove-like/concave blank receiving part 31, and
Two cam rollers 32 are placed at two appropriate positions on the plate material.
．． A rotary slide 30 is provided, and a fixed plate 11 is provided which is in close contact with the rotary slide 30 and fixed to the main body of the apparatus. An angular sub-cam groove 37 is formed, one part of which is parallel to the blank receiving part 31 and the other part is not perpendicular to it, and which connects the rotary slide 30 and one of the cam rollers 32 to the cam groove 33. In addition to being installed so that it can be guided, other cam rollers 3
6 is installed in the sub-cam groove 37 so as to be guided so as to be slidable and rotatable with respect to the fixed plate 11 to form the blank conversion supply mechanism 15, and furthermore, the chute 16 is installed at an appropriate position on the chute 16. An inclined drop loader is provided with an escapement mechanism 14 for controlling and supplying the blanks supplied to the blank direction converting and supplying mechanism one by one.