JPS59102710A - Part feeder - Google Patents

Abstract

PURPOSE:To permit slippery parts to be securely conveyed by conveying conveyed parts intermittently with said parts being adsorbed to a vibrating bed by magnetism of the vibrating bed when said parts are shifted along a guide surface of a guide member in either of directions of the vibrating bed. CONSTITUTION:When a solenoid 9 is intermittently energized, a feed bed 4 vibratively reciprocates along a guide groove 2 of a base 1 as a plunger 9A reciprocates. Then, while the feed bed bed 4 is shifted in either of directions when the feed bed 4 is excited by energizing an electromagnet 6, a relatively slippery article W located on a guide member 7 is moved as it is adsorbed to the feed bed 4. Next, after the feed bed 4 is completely moved in one direction and when it returns in the opposite direction and the energization of the electromagnet 6 is stopped, the article W is left on a conveyer surface 7A of the guide member 7 and only the feed bed 4 is moved in the opposite direction. The articles W are intermittently sent in one direction by the repetition of said operation.

Description

[Detailed description of the invention] The invention relates to parts feeders.

Conventional parts feeders, whether bowl-type feeders or linear feeders, convert reciprocating vibration from a vibration source into the tangential direction of the bowl in the case of a bowl-type feeder, and into the transport direction of the chute in the case of a linear feeder. The parts are conveyed in a predetermined direction by the frictional resistance between the bowl or chute and the parts.

Therefore, in conventional parts feeders, parts are conveyed by frictional resistance with one part, so it is difficult to convey parts that are slippery and have low contact resistance with the bowl or chute. If the direction is an uphill slope, it may not be possible to transport at all.

The purpose of the present invention was to solve these drawbacks, and the purpose of the present invention is to provide a parts feeder that can reliably transport parts even if the parts are relatively slippery or the transport direction is uphill. Our goal is to provide the following.

Therefore, in the present invention, a guide member, a vibration table made of a magnetic material and arranged adjacent to the guide member so as to be able to take images along the guide surface of the guide member, and this imaging table are provided. The structure includes vibration excitation means that causes the vibration table to vibrate along the 41 plane and intermittently excite the vibration table when moving in one of the vibration directions,
The aim is to achieve the above objectives. in short,
Reliable transportation is achieved by intermittently transporting the transported parts while being magnetically attracted to the vibration table when moving in one direction along the guide surface of the guide member. It is intended to make people do this.

Embodiments of the present invention will be described below based on the drawings.

1 and 2 show a first embodiment of the invention. In these figures, a linear guide pt2 is formed on the upper surface of the base 1, and a drive device 3 is provided at one end thereof. In the guide groove 2, a feed stand 4 is slidably provided as a photographing stand on which the drive device 3 moves in the linear direction of the idle groove 2 to take pictures.

The feed table 4 is composed of a pair of sliding plates 5A and 5B made of magnetic material and arranged on both sides of the guide groove 2 at a constant interval. These sliding plates 5A, 5B are integrally constituted by electromagnets 6 provided at regular intervals in the longitudinal direction between them, and their tips are connected to the conveyance surface 7A of the guide member 7 that guides the conveyed part W. It is located in The electromagnet 6 is of a continuous type while the feed table 4 is being moved in one direction, and is configured to intermittently excite the feed table 4. The guide member 7 is formed of a non-magnetic material into a shape with both side edges separated and raised upward, and is fixed to the base 1 via a member (not shown).

On the other hand, the drive device 3 has a connecting link 8 connected to the feed table 4.
The solenoid 9 is connected via a solenoid 9 and is energized at regular intervals, and a spring 10 urges the feed base 4 in a direction opposite to the direction in which the plunger 9A of the solenoid 9 is attracted. Here, the drive device 3 and the electromagnet 6 constitute a vibration excitation means 11 of this embodiment. Further, in this embodiment, the condition is that the transported component W is a magnetic material.

In such a configuration, when the solenoid 9 is intermittently energized, the feed base 4 is reciprocated along the idle groove 2 as the plunger 9A moves back and forth.

At this time, while the feed base 4 is being moved in one direction, the feed base 4 is in a state of being excited by the energization of the electromagnet 6, so the transported parts W located on the guide member 7 are not transported. It is moved while being attracted to the table 4. Feed stand 4
After completing the movement in one direction, when returning to the opposite direction, the energization to the electromagnet 6 is stopped, so that the feed platform 4
Since the conveyed part W that has been adsorbed remains on the conveyance surface IA of the guide member I, only the feed table 4 is moved in the opposite direction. By repeating this process, the transported parts W are intermittently and sequentially transported in a predetermined direction.

Therefore, in this embodiment, when the feed table 4 is reciprocally vibrated by the drive device 3 and is moved in one direction, the feed table 4 is energized and the VC conveyed part W is attracted and conveyed. Therefore, if the transported part W is a magnetic material,
Even if the transported part W is slippery or the transport direction is uphill, the transported part W can be reliably transported.

In the above embodiment, the drive device 3 may be configured as shown in FIG. 3, for example. In this drive device 3, the tip of the output shaft 13 of the motor 12 is eccentrically cranked, and the tip of the connecting link 8 is rotatably connected to the eccentric output shaft 13. This has the advantage of making the structure relatively simple. Furthermore, if the guide member I is made of a magnetic material and the guide member 7 is magnetized when the feed table 4 returns, that is, when moving in the opposite direction to the transport direction of the component, it is possible to Since the transported part W is attached to the guide member 7KM, the transported part W will not be returned by the feed table 4, and more reliable transport can be expected.

4 to 6 show a second embodiment of the invention. In the same embodiment, a pair of feed tables 21.2 are provided in the guide groove 2.
2 are arranged parallel to each other, and these feed tables 21 and 22 are reciprocated by a drive bag [23 with a phase difference of 180 degrees, and when moving in one direction, the feed tables 21 and 22 are alternately moved by an electromagnet 6. It is designed to be excited by. The drive device 23 is connected to one output shaft 2 of the motor 24.
5 is bent into a crank shape, and this crank-shaped output shaft 2
5 through the link 26.274, said feed platform 21
22 are connected to each other. Thereby, when the motor 24 rotates, the feed tables 21.22 are vibrated back and forth with a phase difference of 180 degrees via the connecting links 26.27. Further, a half-moon-shaped detection plate 29 is attached to the other output shaft 28 of the motor 24, and an optical detector 30 is provided between this detection plate 29. The timing of detecting the moving direction of the feed table 21.22 by this detector 30 and exciting the feed table 21.22,
In other words, the time during which the electromagnets 6 of the respective feed tables 21 and 22 are energized is controlled.

Therefore, in this embodiment, the transported part W is placed on the feed table 21.2.
Because it is conveyed while being alternately adsorbed by 2.

In addition to the effects described in the first embodiment, there are advantages that are not limited to the transport posture. For example, the transported part W can be transported even in a state where it is suspended downward from the feed table 21° 22. Furthermore, the conveyance speed can be made approximately twice as fast as that of the first embodiment. Furthermore, the motor 24
Since the pair of connecting links 26 and 27 are connected to the output shaft 25 with a phase difference of 180 degrees,
They have the advantage of canceling out each other's vibrations.

In addition, in practice, if pressure is applied to convert the rotation of the motor 24 into linear movement of the feed tables 21 and 22 using a cam, it is possible to perform nonlinear movement. For example, it is possible to make the feeding direction slow (and the return direction fast). In this way, even if the magnetic force of the electromagnet 6 is weakened, sufficient conveyance can be expected.

7 and 8 show a third embodiment of the invention. In this embodiment, pressure is applied to sequentially take out the transported parts W put into a hopper 31, and a pair of feed tables 32.
33 is formed in an arc shape from the bottom surface to the top end of the hopper 31, a guide member 34 is arranged around it, and a drive device 35 is used to rotate the feed table 32; Pressure is applied to cause reciprocating vibration due to the phase difference.

Therefore, in this embodiment, the transported parts W are transported to the feed table 32.3.
Since the parts W to be transported are transported while being alternately attracted to the parts W in the hopper 31, the parts W to be transported inside the hopper 31 can be reliably taken out.

In the above embodiment, if the one-rotation fulcrum is made eccentric as shown in FIG. 9, the conveyance distance becomes wider (accordingly) in the -F direction from the bottom of the hopper 31.

The parts to be transported can be transported while being gradually separated.

In the valley embodiment described above, the transmission excitation means is mta by a drive device and an electromagnet, but for example, as shown in FIGS. of.

If supported by a pair of leaf springs 43A and 43B that are inclined with respect to the conveying direction and parallel to each other, when the pair of sliding & 42A, 42B is moved toward and away from each other due to the intermittent suction operation of the electromagnet 6, the sliding of the pair As a result of applying vibration in the transport direction to the moving plates 42A and 42B, it is possible to excite and vibrate the feed table 41 at the same time.

As follows: 1. According to the present invention, there is provided a parts feeder that can reliably transport parts to be transported even if the parts to be transported are slippery or even if the transport direction is uphill. I can do that.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway city view showing a first embodiment of the present invention, and FIG. 2 is a sectional view taken along the line ■--■ in FIG. FIG. 3 shows a modification thereof. FIG. 4 is a plan view showing a second embodiment of the present invention, FIG. Fig. 7 is a front view showing the third embodiment of the present invention, and Fig. 8 is a front view showing the third embodiment of the present invention.
A cross-sectional view taken along the line -■, and FIG. 9 is a front view of the modified example. FIG. 10 is a plan view showing a modification of the vibration excitation means;
Figure 1 is a side view of XJ-XJa town in Figure 10. 3.23.35... Drive device, 4.21.22.
32.33゜41...Feeding base, 6...Electromagnet, 7,
34゛...Guide member. 11... Vibration excitation means. Agent Patent Attorney Minoru Kinoshita (and 1 other person) Figure 8 Figure 9 Figure 1 O Figure 52

Claims (1)

[Scope of Claims] (1) A guide member, a vibration table made of a magnetic material and disposed adjacent to the guide member so as to be able to vibrate along the guide surface of the guide member; The apparatus is characterized by comprising vibration excitation means for vibrating the vibration table along the guide surface and for intermittently exciting the vibration table during movement in any one of the vibration directions. parts feeder. (2. In Claim 1, the vibration excitation means includes a drive device that reciprocates the vibration table along the guide surface of the guide member, and a drive device that allows the feed table to move in one direction. and an electromagnet that excites the vibration table while the vibration table is being moved to the parts feeder.(8) In claim 1 or 2, the vibration table is moved in opposite directions A parts feeder comprising a pair of feeders which are vibrated in a direction and alternately excited when moving in one direction. (4) In claim 3, the The feed bar is a part characterized in that a surface that coincides with the guide surface of the guide member is formed in an arc shape, and is configured to be freely rotatable around the center point L of the arc or an eccentric position. feeder.