JPS625796Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a roll feed attached to a press machine and having two types of feed drive mechanisms.

Conventionally, as shown in FIG. 1, a roll feed is constructed by connecting an eccentric pin 15 provided on an eccentric plate 14 attached to a rotating shaft 13 of a press machine and a pin 7 provided on a sector arm 2 having a sector gear 3 using a connecting rod 16. Then, the sector gear 3 is engaged with the pinion 4 fixed to the cam clutch 5 provided on the drive roll shaft 6 and rotating it in only one direction.
The rotation of the eccentric plate 14 gives a swinging motion to the sector arm 2, thereby causing the roll 17 to rotate in one direction intermittently. The feed of this roll feed is changed by adjusting the amount of eccentricity of the eccentric pin 15 by adjusting the eccentric plate 14, but originally the purpose was to obtain a large feed amount, and the amount of eccentricity is adjusted by the sector gear 3 and pinion 4 to approximately 5.
It has doubled in size. Therefore, when the feed amount is adjusted to a small amount, there is a problem in that the play in each part, especially the play in the sector gear 3, pinion 4, and sector arm 2, causes a large error in the feed, making adjustment extremely troublesome.

The purpose of the present invention is to eliminate this drawback and provide a roll feed having two types of feed drive mechanisms, which can accurately feed small amounts by simply modifying the conventional mechanism, and which is extremely easy to handle. There is a particular thing. The key point of this invention is that the cam clutch is provided with a swinging lever that can be attached and detached, and the connecting rod can be attached and detached by selectively selecting either this lever or the sector arm. I will explain.

In FIGS. 2 and 3, a fan-shaped sector gear 3 is fixed to a sector arm 2 rotatably mounted on a frame 1. As shown in FIGS. The pinion 4 and cam clutch 5 are fixed and drive roll shaft 6
The pinion 4 is disposed coaxially on the top and is meshed with the sector gear 3. The pin 7 provided on the sector arm 2 connects to the connecting rod 16 as shown in FIG.
It is connected to the rotating shaft 13 of the press machine via etc. The cam clutch 5 is rotatable in one direction, and when rotating in the other direction, it is fixed to the drive roll shaft 6 and rotates together with the drive roll shaft 6.
The roll 17 is intermittently rotated in one direction. By rotating the sector arm 2 in the direction in which the cam clutch 5 can freely rotate, the sector gear 3 and pinion 4 can be disengaged. Figure 3 shows the removed state. One end of a swing lever 11 is removably attached to the side opposite to the side on which the pinion 4 of the cam clutch 5 is fixed, and when attached, a hold pin 10 rotatably provided on the holder 9 is attached to the drive roll shaft 6.
The holder 9 is then fixed to the bracket 8 fixed to the frame 1. By doing this, the pin 12 at the other end of the swing lever 11
This prevents the drive roll shaft 6 from deflecting when it is driven by the connecting rod 16.

Next, we will discuss the effect. In Fig. 2, the pin 7 is connected to the connecting rod 16, the eccentric pin 15, and the eccentric plate 1.
4 by the rotary shaft 13 of the press machine, and the sector arm 2 swings. Therefore, the pinion 4 is reciprocated by the sector gear 3.
The cam clutch 5 causes the drive roll shaft 6 to rotate intermittently in one direction only, causing the roll 17 to rotate and feed the material. The amount of feed is adjusted by the eccentric plate 14 as in the conventional case. In Fig. 3, the connecting rod 16 is removed from the pin 7, the sector arm 2 is rotated approximately 180 degrees and fixed to the frame 1, the swing lever 11 is attached to the cam clutch 5, and the holding pin 10, holder 9, and bracket 8 are attached.
The tip of the drive roll shaft 6 is held down. Connect the connecting rod 16 to the pin 12 and rotate the swing lever 11.
oscillate. Thereafter, feeding is applied to the material in the same manner as described above. When pin 12 and pin 7 are driven the same distance, in the case of Fig. 2, the width is increased approximately five times by the sector gear 3 and pinion 4, and the feed amount is large, and in the case of Fig. 3, it is directly driven. Conversely, the swing lever 11 reduces the feed amount. To recover, simply follow the above steps in reverse.

As is clear from the above explanation, according to the present invention, a conventional roll feed is simply modified,
For example, by simply rearranging parts with a small number of parts.
The roll feed with a feed rate of 500 mm can be easily switched to a feed rate of 10 to 20 mm, a small feed rate can be obtained with high precision, and handling is extremely simple, and the practical effects and advantages are significant.

[Brief explanation of the drawing]

FIG. 1 is a partially sectional explanatory view showing the overall arrangement according to a conventional example, and FIGS. 2 and 3 are partially sectional views of main parts of the embodiment. 1 is the frame, 2 is the sector arm, 3 is the sector gear, 4 is the pinion, 5 is the cam clutch, 6
is a drive roll shaft, 7 is a pin, 8 is a bracket, 9 is a holder, 10 is a hold pin, 11 is a swing lever, 12 is a pin, 13 is a rotating shaft, 14 is an eccentric plate, 15 is an eccentric pin, 16 is a connecting rod , 17
is a roll.

Claims (1)

[Scope of utility model registration request] In a roll feed having a cam clutch which is connected and driven via a connecting rod to an eccentric plate provided on the rotating shaft of a press machine, a pinion 4 is pivotally connected to the frame 1 and fixed concentrically to the cam clutch 5.
a sector arm 2 having a sector gear 3 that is removably engaged with the sector arm 2; a pin 7 that stands parallel to the sector gear 3 at the tip of the sector arm 2; The sector gear 3 is equipped with a swinging lever 11 with a pin 12 erected at the tip, and the sector gear 3 is
It is characterized in that it can be used selectively by engaging the pinion 4 and connecting the connecting rod to the pin 7, or by disengaging the sector gear 3, attaching the swing lever 11, and connecting the connecting rod to the pin 12. Roll feed with two types of feed drive mechanisms.