SU931372A1 - Apparatus for delivering parts - Google Patents

Description

one

The invention relates to devices for separating and feeding parts from magazines, cassettes or storage trays to a machining position, used on automatic metalworking or other equipment.

A device for dispensing parts is known, comprising a magazine, a movable receiving table, a slide gate feeder, a housing, distributing supporting posts, kinematically connected to the receiving table and the ij actuator.

A disadvantage of the known device is that it cannot be used in high-speed machines, due to shock loads with a significant mass of parts in the package. And this significantly reduces the performance of the equipment.

The purpose of the invention is to improve the performance of the device.

The goal is achieved in that the device is provided with rollers and strips mounted on the housing, hinged on support columns with the possibility of interaction with the rollers, in intermediate positions of support columns, each support column being connected at one end to the drive by means of an additionally inserted crank and on them made curved profile for interaction with the rollers.

FIG. 1 shows a device for dispensing parts; in fig. 2-6 Structural kinematic support frame in different positions.

Claims (1)

The device for dispensing parts consists of a housing 1 in which a receiving table 2 is placed, moving reciprocatingly as the cam 3 rotates on the shaft k. The workpieces 5 are stacked in the magazine 6 and are supported by the support posts 7, which are hinged on the gears 8 by means of the cranks 9, the support posts 7 are strut spring 10 and are held in the extreme position by the rollers F, 3 fixed to the housing 1 which are placed at this grooves a (((Jwr, 2-6) curvilinear profile b. The planks 12, fixed on the axes 13, form a bond with the rollers 11 and the pillars 7, when the latter are in an intermediate position when re-upward or downward. gear wheel H with United directly with one of the wheels 8, and with the other through an intermediate wheel 15, which is intended to give rotation to the wheels 8 in opposite directions. A wheel 16 with a hinged and spring-loaded pawl 17, having two slots for connection with a spring-loaded pawl 18, is rigidly mounted on the wheel, hinged on the housing 1 and holding the wheel 1 from an arbitrary rotation, the driving ratchet wheel 19 with the slots for the pawl 17 is rigidly connected to the shaft 20 and, independently of the wheel 1, can make a turning movement 16 and rotated clockwise, it rests on the pawl 1 / and turns wheel 1, and when rotated in the opposite direction, the pawl 17 is disengaged and the wheel stops and stops at pawl 18. The shaft k is a cam. 3 and the shaft 20 of the ratchet wheel 19 are kinematically coupled. The housing 1 is fixed to the guide 21 with the supports 22 on which the part 5 is placed, separated from the stack. Table 2 has corresponding cutouts for accommodating guide 21, since it intersects it when it moves up. A pusher 23 is provided for moving parts 5 along a guide 21 to a working position of the machine. The device operates as follows: The drive ratchet wheel 19 rotates clockwise, meshes with the pawl 17, and rotates the serrated wheel 14 half a turn, and wheel 8 one full turn; then returns itself, with to its original position. During this period, the supporting pillars 7 are lowered along with the stack of parts 5 and the simultaneous lifting of the table 2, receiving the stack of parts, then returning the supporting pillars 7 to the initial position with placing them under the subsequent piece of the rod. Next, the table 2 is lowered with the lower part 5, which lies on the guides 21, and the pushers 23 moves this edetal to the first processing position of the machine. When the cranks 9 rotate, the supporting struts 7 are lowered and raised, and the curvilinear profiles o, interacting with the rollers 11, provide a straight linear trajectory of the support points A of the supporting struts 7 (Fig. 2-6) as they move downwards and when they move upward the curvilinear the trajectory around the piece 5. Since the steepness of the profile b is large, to reduce the loads and protect its surface from wear when interacting with the roller 11, the middle part of the profile b is made with an arc of a circle with a radius slightly smaller than the distance between the prices ramie axles 13 and rollers 11 (FIG. 1). Therefore, in the intermediate positions of the support posts 7, the profile b does not come into contact with the roller 11 and forms a gap o (Fig. 7 and 9). As a result of this adjustment, the average real portion of the profile S is formed by the hinge strip 12 and is somewhat different from the theoretical one. But this deviation is insignificant and has no practical significance. After the first half turn of the cranks 9, the uprights 7 are in the lower position, the table 2 is raised, the stack rests on it. The motion of the table 2 and the support posts 7 are not equal to each other. During subsequent movement / cranks 9, the support posts 7 are divorced and moved in a row. Round bottom detail 5 | and table 2 remains in the upper position. Then, the uprights 7 are again in their original position, the table 2 is lowered together with the vacated part 5. which remains on the guide 21. In this case, the ratchet wheel 19 returns to its original position. The pusher 23. making a reciprocating motion, mix the part 5 on the working position of the machine. In the following, the cycle repeats. The use of the invention improves device performance by eliminating dynamic impact modes. An apparatus for dispensing parts, comprising a magazine, a movable receiving table, a gate feeder, a housing, distributing support posts, kinematically connected with a receiving table and an actuator, characterized in that it is equipped with rollers and slats mounted on the housing pivotally mounted on the supporting 9 26 posts with the possibility of interaction with the rollers in the intermediate positions of the supporting supports, each supporting column being connected at one end to the drive by means of crank-administration and are formed curved profile for engagement with the rollers. - Sources of information taken into account during the examination 1. USSR Copyright Certificate 495186, cl. 23 Q 7/06, 197. JLULJLJIZJC JLLILJLJ1ZJL JLLJLJIlUlJL TLILJLJirfT JLIJILJL-JLIJ 1