JPS5816750A - Rivet feeder - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention can be applied to a rippet tightening machine (riveter), tightening member (7 assuna), or other similar members (inclusively referred to simply as rivets). ), 7 Assemblies related to the sheath device that supplies the screw inserting machine, etc. (these are simply referred to as riveting machines).

In the case of a riveting machine, a rivet (material) with a suitable head is moved downward inside the supply pipe! ! II, and then laterally, the riveting machine's gluing catch is removed and driven into the hole in the workpiece to be riveted.

The rivets may be sent downward in the supply pipe by gravity alone, or by applying air pressure to the rivet further within the supply pipe.

The present invention prevents the rivet from tilting inside the supply pipe.
g) Rivets for use in any arrangement which prevents the supply from being obstructed and which meets the conventional arrangement in which one rivet is fed into the lower storehouse and the upper and lower channel arrangement (an arrangement in which it is fed from the bottom to the top). We would like to provide this equipment.

In U.S. Pat. No. 3,647,129, a rivet F is successively introduced into the channel from a feeding tube in a direction perpendicular to the tube using pneumatic pressure.

In U.S. Pat. No. 3,906,615, as the rivet moves along the feed tube, the meeting is free to tilt, but the movement eventually straightens it, and once it reaches the rivet discharge end of the feed tube, it is there. It is designed to engage with the O-ni ring.

In U.S. Pat. No. 3,946,926, air is bled from below the 77 snare to allow free downward movement of the 7 asnah, as most clearly shown in FIG. 6 thereof. Each 77 snare is introduced into the feed channel via an inlet passage 62 that intersects the feed channel and is moved upwardly by air pressure from the passage into a position where it abuts the rivet drive.

In US Pat. No. 4,194,665 pneumatic pressure is used only to operate a staple drive element in the form of an air hammer.

None of the above-mentioned patents or any other patents suggests the apparatus of the present invention using air pressure to hold a rivet from tipping while being transferred from a rivet supply tube to a riveting mechanism.

According to the invention, each rivet is fed normally downwardly through a feed tube, placed onto a sight rail, and from this sight rail moved laterally to conventional rivet holding means.

The present invention prevents the rivet from tilting when returning inside the supply pipe, and allows the rivet to be kept straight in the axial direction regardless of the position of the supply pipe or the arrangement inside the chamber. This effect of the present invention In this method, a series of air introduction passages are arranged at regular angular intervals in the circumferential chamber over the rivet supply pipe, and each of these series of air introduction passages is arranged diagonally with respect to the axial direction of the supply pipe. 1, and the air introduction path forms a conical air pressure I4#-n in the rivet transfer chamber, and this air pressure acts on the axis gc of each rivet to supply the rivet. The rivet is drawn by an air jet device that holds the rivet in the axial direction #C straight in the tube.

The illustrated embodiment will be described in detail below.

In the first Wi, lo indicates the upper anvil structure of the riveting machine, the anvil itself 111
As is well known in this type of riveting, a pair of rivets are located between the members (fingers) 12 and extend downwardly.

Reference numeral 13 denotes a rivet, and as shown in FIG. Figure 1 shows the position of the rivet before it is horizontally transferred to the component. Indicated by a line.

A feature of the invention is associated with the rivet feed pipe 15W which guides each rivet downwardly. In a conventional rivet feed tube, the rivet is dropped into the tube with its head up and then transferred laterally so that the rivet receiver is engaged with member 12.
Zeri b and muno~l.

The present invention ensures that each rivet is vertically straight within the supply pipe to prevent any shifting or tilting, and also prevents any rivet supply mechanism from being oriented in an inverted position, regardless of how the rivet supply mechanism is arranged. In all configurations, including those in which the rivet is moved upwardly within the feed tube 15 by pneumatic pressure, the rivet can be fed in a precisely axially oriented manner.

As shown slightly enlarged in Fig. 3, the rivet supply pipe 1
The lower end of 5 is fitted into a cup 161c.

The inner layer of the collar 16 is continuous with the pipe lδ to form the same pipe path. It is supported on a horizontally extending dowel nut 16 fixed to a 16-wire riveting machine.

When the rivet 15 (having a section II at the upper end) is moved downward, normally the ** of the rivet is received by the inward shoulder formed by the suit alt in the bracket 18 or the other 2o, as shown at 112H. can be stopped.

A par 24 is disposed so as to be movable within the longitudinal hold 21 and has a V-shaped tip 28.

This leading end sequentially engages with the lever supported by the shoulder 20 and pushes it in the horizontal direction.
to engage. The par 24 is connected to the piston 26, and the pressurized air from the supply pipe 2 moves the piston 6 and the par 24 against the coil spring 28.

Characteristic parts of the rivet feeding device of the present invention are clearly shown in Fig. 3 and 4 WI.
16 and a series of air introduction passages 31 provided at regular angular intervals in the circumferential direction and extending obliquely downward.

The groove 30 with sloping side walls is capped with a collar 32 and compressed air is introduced into the groove 30 via a supply pipe 33. This air flows into the third passage 31 and into the rivet supply tube 15.
As shown by the dashed line in WI, it is sprayed downward in a conical shape, hitting the small part of the rivet 13 and pushing the rivet into the tube 15.
The positioning is maintained coaxially with respect to the collar 16.

Various aspects of the present invention will be described below, but it goes without saying that the present invention is not limited to these.

(1) A rivet or similar part is fed through the supply pipe.
In order to keep the axis of the sharpener substantially aligned with the axis of the supply pipe, a number of air introduction passages to the supply pipe are provided at regular angular intervals in the circumferential direction of the supply pipe. By forming these introduction passages in the direction of movement of the rivet and obliquely with respect to the axis of the supply pipe, the air introduced into the supply pipe is directed in the direction of movement of the rivet and in the direction of the axis of the supply pipe. Kl! A rivet feeding device characterized in that the flow flows in a substantially conical pattern so as to converge in quality, and is configured to hold the rivet straight in the axial direction by losing the m portion of the rivet.

(2) The air introduction path means includes a space (pi・ntlm) surrounding the rivet supply pipe, a collar for sealing this space, and a collar for sealing this space, and the pressurized air. (1) a series of diagonal inlet passages extending from the space into the supply tube to form the conical pattern of air flow; The device according to item (2), wherein the space is located near the lower end of the feed pipe of the feeder F.

(4) The device of item (1), in which the lower end of the rivet supply pipe is connected to a bracket having a suit, and the suit receives the body of the rivet; and (5) the body of the rivet. The device according to item (μ), further comprising horizontal transport means for engaging the member and transporting it laterally so as to introduce and support the known rivet receiver into the member.

(6) The device according to item (2), wherein the lower m of the rivet supply pipe is connected to a bracket having a suitcase, and this slot receives the body of the rivet.

(7) The apparatus according to item (2), further comprising horizontal transport means for engaging the adjustment portion of the rivet and transporting the rivet laterally so as to introduce and support the known rivet receiver into a member.

[Brief explanation of the drawing]

Fig. 1 is an elevational view showing a part of a refreshing embodiment of the present invention in longitudinal section, 2WI is a sectional view taken along line 2-211 in Fig. 1, and Fig. 3 is a sectional view taken along line 3-3s in Fig. 1. , FIG. 4 is a sectional view taken along line 4-411 in FIG. 3. 12... Rivet support is a component, 151. Town → cut supply pipe, 16... Collar, 1B-
-6 Bracket, 20...Shoulder, 21...Spout, 26...Piston, 30...Fist annular groove, 2F, 33...Compressed air supply pipe, 3111...Introduction path.

Claims (1)

[Claims] (1) An angular stroke in the circumferential direction of the supply conduit in order to make the axis of the Repetz F or the like transported in the supply conduit coincidentally with the axis r of said supply conduit. By providing a series of air introduction passages to the supply pipe line with a distance between them, and arranging these air introduction passages in the direction of transfer of the rivet and obliquely to the axis of the supply pipe line, the supply pipe The kneading flows in a conical pattern so that the air introduced into the rivet conduit is concentrated on the axis W of the supply conduit in the direction of rivet transport; A rivet feeding device characterized in that it is configured to maintain a rivet in a straight state. . □ (2) so that the axis of a rivet or the like transported within a supply conduit substantially coincides with the axis of said supply conduit;
A series of pneumatic-to-electrical inlet passages to the supply conduit are provided at one angular interval within one circumference of the supply conduit, and these air inlet passages are oriented in the direction of transport of the rivet. and is formed obliquely with respect to the axis of the supply conduit so that the air introduced into the supply conduit substantially converges on the axis of the supply conduit in the direction of rivet transport. 111 of the rivet to maintain it axially straight, and at the outlet end of the supply conduit to engage the body of the rivet to force the rivet laterally. A rivet supply device characterized in that it is further provided with a means for transferring the rivet in the direction and introducing it into the rivet receiver of the rivet tightening machine.