JPS6132208B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an object feeding device for feeding objects from a magazine, and its object is to continuously and forcibly feed objects as necessary.

Conventional object feeding devices use a method in which the magazine is tilted and the objects fall by weight, which is structurally simple, but is unreliable as they often get caught in guides during transportation. Ta. There is also a cylinder that is used to feed the paper, but this requires a vertical drive in addition to the conveyance feed, resulting in a complicated structure and the disadvantage that the space becomes long in the conveyance direction.

The present invention has been devised to address this problem, and will be described below with reference to drawings showing an example of its implementation. In the figure, 1 is a magazine in which object storage grooves 2 are formed in multiple rows, 3 is a positioning device 4 that positions the magazine 1 at every pitch of the object storage groove 2, and object feeding claw relief grooves located on both sides of the magazine 1. 1 with a magazine guide 6 formed with 5
A pair of belt conveyors includes a belt conveyor 7 for conveying objects, and a supply cylinder 8 for separating and supplying objects one by one through seesaw action with a separating cylinder 9 for cutting off objects. 10 is an electric motor 11 with a reducer
The rotary gear rotates from the drive gear 12 through the drive gear 12, and is configured to support the drive sprocket 13 and to be able to rotate independently of the drive sprocket 13. 14 is a torque adjusting screw portion 1 by screwing a lock nut 18 into a split groove 17 formed in the torque adjusting screw portion 16 of the rotary gear 10 via a torque setting spring 15 between the drive sprocket 13 and the torque adjusting screw portion 16.
6, and these 13
The torque limiter is composed of 18 members. Reference numeral 19 denotes a pair of feed pawls which are held between the driving sprocket 13 and the driven sprocket 21 and are connected to a chain 22 which is conveyed and driven via a support plate 23, and are provided at an equal distance.
Reference numeral 24 denotes an intermediate guide that pairs with a lower chain guide 25 that parallelizes slack in the lower part of the conveyance chain 22 to prevent the conveyance chain 22 from floating up, and also serves as a guide for the upper conveyance chain 22;
Reference numeral 26 denotes a photo sensor which is shielded from light by the feeding claw 19 whose conveyance is regulated by a regulating guide 27 having a groove for regulating the feeding claw 19 . 28 is a driving pulley of the belt conveyor 3, 29 is a driven pulley thereof, and 30 is an electric motor with a reduction gear that rotates the belt conveyor 7 and transmits rotational motion to the driving pulley 32 and the transmission pulley 33. 34 is a tension pulley of the belt conveyor 7, and 31 is a guide provided on both sides of the belt conveyor 7 for conveying objects. 35 is a shaft 3 that supports the rotating gear 10.
This is a bearing for rotating on 6. 37
is a frame to which a bracket 38 of the photo sensor 26, a support collar 39 for supporting the intermediate guide 24, and a support bolt 40 are fixed.

In the above configuration, the objects stored in each object storage groove 2 of the magazine 1 are arbitrarily moved forward by the torque adjusting body 14 by the feed pawl 19 connected to the normally rotating electric motor 11 with a reduction gear. It is pressed with the set torque. That is, when an object is needed in front and the shutter is opened by the separation cylinder 9, the rotational movement of the electric motor 11 with a reduction gear is controlled by the torque adjustment body 1.
The rotating gear 10 and the driving sprocket 13 are frictionally connected by the biasing force of the torque setting spring 15 set in step 4, and the object is transmitted to the driving sprocket 13. The object is sent out from one of the object storage grooves 2 and is supplied. When the separation cylinder 9 closes, the forward movement of the feed pawl 19 is inhibited, and a torque greater than the set frictional coupling force is applied before and after the torque setting spring 15 of the torque limiter, causing it to slip and rotate idly. Next, the objects stored in one object storage groove 2 are sent out in sequence and when all are fed, the feed pawl 19 rotates along the drive sprocket 13, moves to the return side, is detected by the photo sensor 26, and is transferred to the electric motor with reduction gear. 11 stops.
At this time, one of the feed claws 19, which is symmetrically connected to the chain 22, is conveyed to the relief groove 5 and stands by for supplying the object. Then, after the magazine 1 moves one pitch and the next object storage groove 2 is positioned by the positioning device 4, the electric motor 11 with a reduction gear rotates and the feed pawl 19 sequentially supplies objects from the object storage groove 2. . Further, while the electric motor 11 with a speed reducer is stopped for moving the magazine 1, only the objects mounted on the belt conveyor 7 are fed forward. Furthermore, when the feed claw 19 is feeding the object, the lower chain guide 25 and intermediate guide 24 of the chain 22 are regulated so that the chain 22 does not swing vertically or horizontally, so that the object can be transported without floating up or shifting sideways. Can be done accurately.

In the above embodiment, the separation cylinder 9 and the supply cylinder 8 form a separation device, but this may be just a shutter mechanism, as long as it can meet the purpose of separation and supply.

The present invention can be implemented as described above,
By applying it to the object supply of automatic production machines, automation and labor saving can be achieved, and it is effective as a highly reliable, simple and inexpensive device.

[Brief explanation of the drawing]

The drawings show an example of the implementation of the present invention.
The figure is an overall plan view, Figure 2 is a side view of the same, Figure 3 is a perspective view of the magazine, Figure 4 is a sectional view of the drive unit that supplies objects from the magazine, and Figure 5 is a conveyor that supplies objects from the magazine. FIG. DESCRIPTION OF SYMBOLS 1... Magazine, 2... Object storage groove, 3... Belt conveyor, 4... Positioning device, 5... Relief groove, 6... Magazine guide, 7... Belt conveyor, 8... Supply cylinder, 9... Separation cylinder, 10... Rotating gear, 1
DESCRIPTION OF SYMBOLS 1... Electric motor with reduction gear, 12... Drive gear, 13... Drive sprocket, 14... Torque adjustment body, 15... Torque setting spring, 16... Torque adjustment screw part, 17
...Split groove, 18...Lock nut, 19...Feed claw, 2
DESCRIPTION OF SYMBOLS 1... Driven sprocket, 22... Chain, 23... Support plate, 24... Intermediate guide, 25... Lower chain guide, 26... Photo sensor, 27... Regulation guide.

Claims (1)

[Claims] 1. A feed claw for feeding objects as required on the supply side from a magazine having multiple rows of object storage grooves;
A chain that conveys the feed pawl, an intermediate guide and a lower guide that prevent the chain from vertically moving and rolling, and a torque limiter that allows the drive source to idle when a load exceeding a set torque is generated on the feed pawl. an object characterized by comprising: a photo sensor that generates a signal to make the feed pawl standby when feeding the object storage groove of the magazine one pitch; and a conveyance device that supplies the object sent out by the feed pawl forward. Feeding device.