JPS61197131A - Screw mounting apparatus - Google Patents

Abstract

PURPOSE:To enable a screw to be supplied in a stable attitude, by providing a fork-shaped pawl, which penetrates through a catcher with the point end of the pawl reaching a screw dropping part of a chute, and retractably actuating said pawl from the catcher. CONSTITUTION:An apparatus, dropping a screw 3 from a chute 1, receives by a pawl 6 a head part of the screw immediately after it is dropped, and the screw 3, sliding on said pawl 6, is placed in a catcher 4. In this way, the apparatus, driving by a cylinder 62 an arm 61 both having one end of the pawl 6 and being supported by an axis 60 so as to retract the pawl 6 from the catcher 4, drops downward the screw 3, placed in the catcher 4. Successively, the catcher 4 lowers, and after a point end of the screw 3 is placed approaching a member 9 for the screw to be mounted, the apparatus, lowering a bit 5 to be rotated and opening the catcher 4 to be actuated about axes 40 serving as the center while against return springs 41, mounts the screw 3 to the member 9 for the screw to be mounted.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a screw setting device for sequentially installing screws.

[Background technology 1 There is a screw mounting device shown in FIG.

This is 1 Saturday, - 1 h) Chishi Shida 9 and above 7. +TI
In n.

The screws 3 supplied one by one are put into a catcher 4 whose tip can be opened and closed, and then the bit 5 whose tip is located in the catcher 4 is rotated downward and passed through the catcher. By opening -4, the screw 3 is attached to the member to be attached. The most important thing in this screw setting device is the chute 1.
The purpose is to keep the screw 3 in a predetermined posture when dropping the screw 3 from the catcher 4 to the catcher 4. In this conventional example, the catcher 4 is provided with a gutter 4o, and the screw 3 is dropped into the catcher 4. By regulating the posture of the screw 3 entering the catcher 4, and once receiving the head of the screw 3 entering the catcher 4 with the forked claw 6, the claw 6 is removed from the catcher 4.
The screw 3 falls straight down and reaches the tip of the catcher 4. However, in this conventional example,
Although the posture of the kneading machine 3 does not collapse after being received by the claws 6, the posture of the kneading machine 3 may be distorted until it is received by the claws 6, resulting in a feeding error.

That is, contact with the guide 40 may make the posture of the screw 113 unstable, and the posture of the screw 3 may change even after passing through the guide 40 until it is received by the claw 6. It has the following. Another problem is that it is difficult to align the chute 1 with the catcher 4.

[Objective of the Invention 1 The present invention has been made in view of the above points, and its object is to provide a screw setting device that can reliably supply screws from the chute to the catcher. It is in.

[Disclosure 1 of the Invention The present invention provides a chute for supplying screws, a catcher for receiving the supplied screws at a lower end that can be opened and closed,
A screw setting device equipped with a bit for turning a screw received by a catcher is provided with a forked claw that passes through the catcher and whose tip reaches the screw-throwing portion of the chute, and the claw is removed from the catcher. It is characterized by being flexible, and the screws dropped from the chute are directly caught by the claws and then dropped into the catcher.

The present invention will be described in detail below based on the illustrated embodiment. This screw setting device is basically the same as the conventional example, and is composed of a chute 1, a catcher 4, a bit 5, and a claw 6. Then, the bits 3, which are supplied one by one from the chute 1 by being cut out by the shutter 2, are fed into a catcher 4 whose tip can be opened and closed, and then the bit whose tip is positioned inside the catcher 4. By rotating the screw 3 downward and opening the catcher 4, the screw 3 is attached to the member 9. The forked claw 6 for receiving the head of the catcher 3 is different from that of the conventional example, and penetrates through the catcher 4 so that its tip reaches the dropping portion of the shoe F1. . Nehi 3 dropped from chute 1
As shown in FIGS. 1 and 2, the head of the catcher is received by a claw 6 immediately after being dropped, and the catcher slides over the claw 6 and enters the catcher 4.

The catcher 3, which has entered the catcher 4 in this way, drives the arm 61, which has a claw 6 at one end and is supported by a pongee 60, with a cylinder 62, as shown in FIG. When it is removed from the catcher 4, it falls downward and is caught at the lower end of the catcher 4. At this time, there is a guide by the inner wall of catcher 4, and
Since Nehi 3 falls straight downward, there is no chance that its posture will change.

Subsequently, as shown in FIG. 4, the catcher 4 descends, and after bringing the tip of the hook 3 close to the member 9 to be attached, as shown in FIG. The catcher 4 is opened with respect to the center 40 and against the return spring 41, and the screw 3 is attached to the member 9.

After this, as shown in FIG.
4 is returned and raised, and the claw 6 is further returned to complete one cycle of the job.

[Effect of the invention 1 As described above, in the present invention, a screw dropped from a chute is received by a forked claw whose tip reaches the dropping part of the chute, and the screw is placed into the catcher with this claw. Therefore, the position of the screw does not become unstable during this time, and the screw can be reliably fed to the catcher, making it highly reliable.
Furthermore, since reliable operation can be achieved simply by aligning the dropping portion of the chute with the tip of the claw, positioning the chute is also easy.

[Brief explanation of the drawing]

1 to 6 are cross-sectional views of an embodiment of the present invention, and FIG. 7 is a cross-sectional view of a conventional example, in which 1 is a chute, 3 is a screw, and 4 is a sectional view of a conventional example.
The catcher 15 is a bit, and 6 is a claw. Agent Patent Attorney Ishi 1) Chief 7Figure 1Figure 2Figure 3Figure 4

Claims (1)

[Claims] (1) In a screw setting device that includes a chute that supplies screws, a catcher that receives the supplied screws at its lower end that can be opened and closed, and a bit that turns the screws that are received by the catcher, the tip of the screw passes through the catcher. A screw mounting device characterized in that a fork-shaped claw that reaches a screw dropping portion of a chute is provided, and the claw can be freely withdrawn from a catcher.