JPH06316318A - Part outflow control device - Google Patents

Abstract

PURPOSE:To surely stop a part carelessly slid down in a device in which a guide shooter is extended from a housing box for part, and minimize the noise by forced vibration. CONSTITUTION:A braking member 30 is continuously connected to the end part of a guide shooter 10, an auxiliary member 32 is welded to the reverse surface of a slide plate 21, and the iron core 35 of an electromagnet 33 is closely adhered to the inner surfaces of both the members 30, 32. Thus, a strong attracting magnetic force is generated in the boundary connecting part between the braking surface 31 and the slide plate 21.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component outflow control device, and is applied to, for example, a guide shooter provided between a component storage box and a target location.

[0002]

2. Description of the Related Art A conventional technique will be described with reference to FIGS. 3 to 7, in which a vibrating parts feeder 3 and a vibrating hopper device 4 are fixed on a base 2 having legs 1. is there. The parts feeder 3 has a vibrating section 5 and a circular bowl 6, and is configured to give a combined vibration in the circumferential direction and the vertical direction to the bowl 6.
A component supply pipe 7 extends from the bowl 6.

Explaining the hopper device 4, a component storage box 8 is supported by a support column 9 that is firmly erected on the base 2, and the components from the storage box 8 are placed in a bowl 6.
A guide shooter 10 is installed in order to replenish.
As is apparent from FIG. 4, the guide shooter 10 has a U-shaped cross-section that is opened upward, and does not have a rigid connection structure with the housing box 8 and the support 9, so that only the guide shooter 10 can vibrate. ing. That is, as shown in FIGS. 5 and 6, a gap 11 is formed between the storage box 8 and the guide shooter 10, and the guide shooter 10 itself is elastically held by the support rubber 12. The support rubber 12 is
Bracket 13 welded to support 9 and guide shooter 10
It is installed between the guide and the guide shooter 10 so that only the guide shooter 10 can vibrate. An electromagnetic vibrator 14 is installed to vibrate the guide shooter 10. This is firmly fixed on a support 15 as shown in FIG. 3, and its output shaft 16 is connected to the guide shooter 10 via a bracket 17.

As shown in FIGS. 3 and 5, the bottom plate 18 of the storage box 8 is inclined, and the delivery port 19 for the parts is shown in the lower part thereof to prevent excessive outflow of the parts. In order to do so, a regulation plate 20 is provided. The regulation plate 20 is made of a material such as vinyl chloride and has a flexible property, and a component passage gap 22 is provided between the regulation plate 20 and the sliding plate (bottom plate) 21 of the guide shooter. In order to adjust the vertical position of the restriction plate 20, a vertical long hole 24 is formed in the front wall plate 23 of the storage box 8, a bolt 25 is passed through this hole, and the restriction plate 20 is tightened with a wing nut 26. ing. 27
Is a holding plate.

FIG. 7 shows a touch rod 2 entering the bowl 6.
8, the lower end of the touch rod 28 extends close to the bottom plate of the bowl 6, and the upper end of the touch rod 28 is connected to the detection switch 29. When the bowl 6 contains a required amount of components (eg, projection nuts), the vibration of the bowl 6 causes the components to flow in the circumferential direction on the bottom plate, so that the touch rod 28 is pushed by the components. The tilted posture is continuously maintained, and as a result, the detection switch 29 is in a state in which no electric signal indicating a shortage of components is output. 4. FIG. 4 is a three-dimensional view showing the relationship between the storage box 8 and the guide shooter 10.

[0006] When the parts in the bowl 6 are exhausted, the touch rod 28 takes a downward position so that the detection switch 29 gives a signal indicating that the parts are insufficient. This signal activates the vibrator 14,
The guide shooter 10 is forcibly vibrated, and the vibration is also transmitted from the delivery port 19 to the component in contact with the sliding plate 21, so that the component pushes the regulating plate 20 and opens the sliding plate 21.
Because I'm going down the top.

[0007]

The above-mentioned prior art has the following problems. The restriction plate 20 prevents the parts from freely flowing out when the vibrator 14 is stopped, and also serves as a restriction so that the parts do not excessively flow out when the vibrator is activated. Also the passing void 22
A phenomenon occurs in which the object slides down on the slide plate 21 as if it spills out of the slide. Such a phenomenon occurs when the parts feeder 3 and the hopper device 4 are both mounted on the single base 2, the vibration of the parts feeder 3 is transmitted to the hopper device 4 via the base 2, and eventually, The guide shooter 10 vibrates, which causes unintentional outflow of parts. Therefore, it is preferable to lower the regulation plate 20 to reduce the passing gap 22 or to increase the hardness of the regulation plate 20, but by doing so, the guide shooter 10
The restriction plate 20 cannot be pushed open unless the amplitude and the frequency of the vibration are increased to vibrate considerably. What must be particularly emphasized is that by vibrating the vibrator 14 violently, the components on the guide shooter 10 generate intense noise, while the storage box 8 itself also produces high noise. .

[0008]

Means for Solving the Problem and Its Action The present invention is provided to solve the above-mentioned problems, and in the case where the guide shooter projects from the housing box of the parts, the guide shooter slips. A braking member is continuously connected to the end of the plate, an auxiliary member is welded to the back surface of the sliding plate at a predetermined distance from the braking member, and the braking member and the auxiliary member are brought into close contact with the iron core of the electromagnet, and the braking is performed. A strong attractive magnetic force is generated at the joint boundary between the braking surface of the member and the sliding plate, and this joint boundary is arranged in a state of crossing the end of the sliding plate in a direction substantially perpendicular to the outflow direction of the component. The magnetic flux lines generated by the electromagnet return from the iron core to the iron core through the braking member, the sliding plate, and the auxiliary member (depending on the polarity, this may be the opposite direction). Shape The parts that came inadvertently moves on sliding plate, by stopping adsorbed by a strong suction force generated in the junction boundary between the braking surface and the sliding plate of the braking member,
It prevents unnecessary spills.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of FIGS. 1 and 2 show only the differences from the prior art described with reference to FIGS. 3 to 7, and those having the same functions as the members of FIGS. Are denoted by the same reference numerals and detailed description thereof is omitted. The braking member 30 made of iron is welded to the end of the sliding plate 21, and the braking surface 31 formed on the upper surface thereof is continuously and smoothly connected to the surface of the sliding plate 21. The braking member 30 is formed by cutting a thick plate into an elongated shape as shown in the figure, and an auxiliary member 32 made of iron and having the same shape as that is welded to the back surface of the sliding plate 21 in parallel with the braking member 30. The distance between the two members 30 and 32 is the electromagnet 3
It is a predetermined value that matches 3. An electromagnet 33 is attached between the two members 30 and 32, and an iron core 34 thereof is in close contact with the inner surfaces of the braking member 30 and the auxiliary member 32 as shown in the figure. When the electromagnet 33 is excited by a direct current, the braking member 3
At 0, an attractive magnetic force is generated, and the magnetic force is strongest particularly near the end portions of the braking surface 31 and the sliding plate 21 (the portions indicated by reference numeral 35), in other words, near the joining boundary portion between the braking surface 31 and the sliding plate 21. That is, since the magnetic flux lines are cut off in such a joint boundary part, when the part moves to the joint boundary part, the magnetic flux lines pass through the part, Therefore, the suction braking force in this portion is increased. When this point is observed in a little more detail with respect to the embodiment of FIG. 1, the right end surface of the braking member 30 and the lower surface of the sliding plate 21 are those in which the black-painted portions in FIG. 1 are partially welded. The non-welded portion is in the form of a joint boundary portion between the braking surface 31 and the sliding plate 21, and the disconnection phenomenon of the magnetic flux lines occurs at this non-welded portion, and the joint boundary portion is as described above. Since it is in the transverse state, the above-mentioned strong suction of the components is performed in the transverse direction.

As is apparent from FIGS. 1 and 2, the joint boundary portion is arranged so as to cross the end portion of the sliding plate in a direction substantially perpendicular to the outflow direction of the component. Even if some components slide down on the sliding plate 21 while the vibrator 14 is stopped, the components are attracted by the strong attracting magnetic force at the joining boundary portion between the braking surface 31 and the sliding plate 21, and particularly, the joining boundary portion is Since it is almost orthogonal to the outflow direction of
Parts such as the projection nuts that slide down are braked securely and stopped. Since the joint boundary portions are in the orthogonal state as described above, all the components are adsorbed, and when the number of such components increases, the magnetically adhered components are braked over the entire width of the sliding plate 21. It will be in a state where it is applied. This prevents the subsequent parts from coming out irregularly (for example, to the bowl 6) from the guide shooter 10.

On the other hand, the energization of the electromagnet 33 is cut off, the attractive magnetic force disappears, and at the same time, the vibrator 14
When the operation starts, the parts that have been braked flow out from the guide shooter 10 and also continuously flow out from the passage gap 22.

[0012]

According to the present invention, the magnetic flux lines formed by the electromagnet form a closed loop in which the magnetic flux lines return from the iron core to the iron core through the sliding plate from either the braking member or the auxiliary member. In parts where a strong magnetic attraction force is generated at a portion where the flow of magnetic flux lines is insufficient, that is, at the joining boundary portion, and the member slides down carelessly, the joining boundary portion formed by the braking surface and the sliding plate has the above-mentioned transverse direction aspect. Since it exerts a strong suction braking force, all the components can be stopped without fail, and irregular outflow from the guide shooter can be completely prevented. Since the parts can be magnetically braked in this way, it is not necessary to set the hardness of the regulation plate and the size of the passing gap to values that prevent the parts from leaking, as shown in FIG. Can be minimized, and the most important issue, the noise problem, can be minimized.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view showing an embodiment of the present invention.

FIG. 2 is a plan view showing an embodiment of the present invention.

FIG. 3 is a side view of a conventional example.

FIG. 4 is a perspective view of a conventional example.

FIG. 5 is a vertical sectional side view of a conventional example.

6 is a sectional view taken along line (7)-(7) of FIG.

FIG. 7 is a cross-sectional view showing a portion of a touch rod.

[Explanation of symbols]

 8 Storage Box 10 Guide Shooter 21 Sliding Plate 30 Braking Member 32 Auxiliary Member 33 Electromagnet 34 Iron Core

Claims (1)

[Claims] 1. A guide shooter protruding from a housing box for components, wherein a braking member is continuously connected to an end portion of a sliding plate of the guide shooter, and a predetermined distance is provided between the braking member and the back surface of the sliding plate. The auxiliary member is welded, the iron core of the electromagnet is brought into close contact with the braking member and the auxiliary member, and a strong attracting magnetic force is generated at the joint boundary portion between the braking surface of this braking member and the sliding plate, and this joint boundary portion Arranged across the edge of the sliding plate in a direction substantially perpendicular to the outflow direction,
A component outflow control device characterized in that the attraction magnetic force is arbitrarily eliminated.