JPH04189214A - Oscillation feeder - Google Patents

Abstract

PURPOSE:To improve productivity and processing accuracy of fitting parts by forming the fitting surfaces of fitting parts for fitting a plate spring to oscillating bodies vertically. CONSTITUTION:A plate spring 5 is fitted to an upper oscillating body 4 and a lower oscillating body 3 by fitting parts 6, 7 respectively. This upper fitting part 6 forms fitting surfaces 13, 13' in parallel with each other in both sides of a vertical center line l, namely, vertical fitting surfaces 13, 13'. Two surfaces in positions at 90 deg. against the fitting surfaces 13, 13' are formed into the vertical surfaces, and the other surfaces is formed into a horizontal surface. The lower fitting part 7 showed with a figure is formed into a square pole, which consists of four vertical surfaces and a horizontal surface like the upper fitting part 6, at a position dislocated a little from the vertical center line 1. Both ends of the plate spring 5 to be fitted to the upper and the lower fitting parts 6, 7 are foamed into vertical fitting ends 16, 17, and are fastened with bolts 10 respectively.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention relates to a vibratory feeder that applies vibration to a bowl containing small parts, thereby aligning the small parts and sequentially feeding the small parts to an assembly process. .

[Conventional technology]

The basic structure of a conventional vibrating feeder, as shown in FIG. 14, includes a lower vibrating body 3 supported on a base 1 via vibration isolating rubber 2, and an upper vibrating body 4 provided above the lower vibrating body 3. A plurality of sets of leaf springs 5 are interposed between the vibrating bodies 3.4, and mounting portions 6.7 facing vertically are provided on each vibrating body 3.4.
．． Both upper and lower ends of the leaf spring 5 are attached to the bolt 9 with bolts 10, respectively. A magnetic excitation device 11 is provided between the lower vibrating body 3 and the upper vibrating body 4, and the bowl 1 mounted on the upper vibrating body 4 is activated by the cooperation of the device 11 and the leaf spring 5.
2 and the articles to be transported therein, the articles are moved in a fixed direction while being sequentially aligned.

[Problem to be solved by the invention]

Each of the mounting surfaces 8.9 of the upper and lower mounting portions 6.7 in the conventional vibratory feeder is formed into an inclined surface so as to follow the inclination of the leaf spring 5.

In order to machine such an inclined mounting surface 8.9 with the required precision, an NC device and a tiltable index table must be used.

However, such a processing method has a problem in that productivity is lower than processing using a general-purpose milling machine or the like, and expensive equipment must be used. Further, since holes such as bolt insertion holes must be formed on the inclined surface, there is also the problem that processing accuracy deteriorates.

Therefore, it is an object of the present invention to provide a vibratory feeder having a mounting portion with high productivity and high machining accuracy.

[Means to solve the problem]

A first means for solving the above problem employs a configuration in which the mounting surfaces of the upper and lower mounting portions are formed vertically.

The second method is to provide a tapped hole at a symmetrical position on the other vibrating body with the vertical center line of the mounting part of either the upper vibrating body or the lower vibrating body as the center, and to make the screw-sized hole into the other vibrating body. Both have a block-shaped mounting portion screwed to one end.

The third means is to provide a pair of mounting parts at symmetrical positions on the other vibrating body with the vertical center line of the mounting part of either the upper vibrating body or the lower vibrating body as the center, and to attach the pair of mounting parts. One of the parts is attached to one attachment part, and both ends of the leaf spring are attached to the attachment part of the one vibrating body.

A fourth method is to provide the upper and lower mounting parts on a common vertical center line, with the mounting surface of the upper mounting part on one side of the center line and the mounting surface of the lower mounting part on the other side of the center line. The structure is such that both ends of the leaf spring are attached to the.

The leaf spring according to the first to fourth means described above has mounting end portions formed in the vertical direction along each mounting surface at both ends of the inclined flexible portion in the central portion.

A fifth means is such that the mounting surface of one of the mounting portions is vertical and the mounting surface of the other mounting portion is horizontal. In this case, one mounting end of the leaf spring is bent in the horizontal direction.

A sixth means is such that the mounting surfaces of the respective mounting portions are all horizontal surfaces. In this case, the attachment ends at both ends of the leaf spring are horizontally formed so as to face outward, that is, away from the flexible portion of the central portion.

The seventh means is to provide each mounting part on a common vertical center line, form the mounting surface of each mounting part horizontally, and fold back the ends of the leaf spring in the direction opposite to the center part thereof. The structure includes a bent part for mounting. In this case, the mounting end portions at both ends of the leaf spring are formed horizontally so as to face inward, that is, to face the flexible portion of the central portion.

[Effect]

A vibratory feeder equipped with the above-mentioned configurations generates vibrations through the cooperation of an electromagnetic excitation device and a plate spring, and transmits the vibrations to a bowl installed on an upper vibrating body, as in the conventional case. , the articles to be conveyed therein are aligned and conveyed in a fixed direction.

[Example] FIG. 1 shows an example of the first means described above. Since the basic configuration of this vibratory feeder is the same as the conventional case shown in FIG. 14, the same parts are designated by the same reference numerals and the explanation thereof will be omitted.

The difference from the conventional case lies in the structure of the mounting portion 6.7.

That is, the upper mounting portion 6 has its vertical center @I! Two parallel (i.e., perpendicular) mounting surfaces 13. formed on both sides of the mounting surface 13.
13' is formed, and the other two surfaces 90 degrees apart from these are also vertical surfaces, and the remaining surface is a horizontal surface. Therefore, the mounting portion 6 has a quadrangular prism shape formed by a vertical surface and a horizontal surface.

The lower mounting portion 7 is provided at a position slightly offset from the above-mentioned vertical center line 1, but its shape is similar to that of the upper mounting portion 6, and the mounting surfaces 14, 14' are vertical.

The leaf spring 5 is made by stacking several leaf spring materials, and the flexible part 15 at the center is inclined with respect to the vertical line l.
The mounting ends 16,17 at both ends are vertical. The mounting ends 16.17 of the leaf spring 5 are fixed by bolts 10 to the mounting surfaces 13.14 of the upper and lower mounting portions 6.7 on the same side (left side as viewed in FIG. 1). When reversing the conveyance direction of the conveyed articles in the bowl 12, as shown in FIG. Both ends of the leaf spring 5 are attached to the right side attachment surfaces 13' and 14' of each attachment part 6.7 with bolts 10.

FIG. 3 shows an embodiment of the second means. The lower mounting portion 7 in this case is in the shape of a rectangular block, and the lower vibrating body 3 is provided with screw holes 18 and 18' at positions spaced apart by a certain distance on both sides of the vertical center line l. It will be done.

(In the case of Fig. 81, the leaf spring 5 is fixed to the screw hole 18 on the right side of the vertical center line 2 with a bolt 10', and both ends of the leaf spring 5 are attached to the respective mounting surfaces 13 on the left side of the upper mounting part 6 and the lower mounting part 7. 1
4 with bolts 10. In addition, when reversing the conveyance direction, as shown in (g)), the lower mounting part 7
into the screw hole 18' on the left side, and attach the leaf spring 5 to each mounting part 6.
．． Attach it to the mounting surfaces 13' and 14' on the right side of 7.

FIGS. 4 to 6 show embodiments of the third means described above.

In the embodiment shown in FIG. 4, three lower attachment parts 7.7' are provided for one upper attachment part 6, and the lower attachment part 7.7' is located at the vertical center of the upper attachment part 6. They are provided at symmetrical positions on both sides of line l.

These lower mounting parts 7.7' are arranged (81) depending on the transport direction.
used as shown in Figures and Φ).

Each of the embodiments shown in FIGS. 5 and 6 is a leaf spring 5.
By interposing a spacer 19 between the mounting end portions 16 and 17, the inclination angle of the flexible portion 15 is changed to θ1 and θ2.

7 to 10 are examples of the fourth means described above. In the embodiment shown in FIG.
The leaf spring 5 is fixed on the common vertical center line l with the upper mounting part 6 on the left mounting surface 13 and the lower mounting part 7 on the right mounting surface 14', as shown in FIG. When reversing the conveyance direction, reverse the right and left sides of the mounting surfaces 13' and 14 as shown in the figure.

In each of the embodiments shown in FIGS. 8 and 9, the vibration characteristics are varied by changing the number of spacers 19 and the number of spring materials of the leaf spring 5.

Further, in the embodiment shown in FIG. 10, the mounting end 1 of the leaf spring 5
6. By making the length of 17 longer than in the above case,
The bend between the flexible part 15 and the mounting end 16.17 is spaced away from the ends of the mounting surfaces 13.13', 14.14' where the maximum stress is applied. (b) In the case shown in the figure, one leaf spring material is bent into an L shape, and each bent part has a long hole 20 (
(C) (see figure) are provided, and their bent portions are overlapped and slidably connected by bolts and nuts 25. Therefore, even if the number of spacers 19 changes, the same leaf spring 5 can be used.

FIG. 11 shows an embodiment of the fifth means described above, in which the lower mounting part 7 is block-shaped and is fixed by two poles NO', and two places on the other side of the vertical center line l are attached. screw hole 1
8.18' is provided.

The upper mounting part 6 has vertical mounting surfaces 13, 14, as in the previous embodiments, but the mounting surface 2 of the lower mounting part 7
1 is horizontal. The leaf spring 5 is bent into an L shape and both ends thereof are fixed to each mounting surface 13.21. (b) As shown in the figure, by interposing a spacer 19 on the mounting surface 13 of the upper mounting portion 6, a line m connecting the upper and lower fixed ends of the leaf spring 5 is formed.
and the vertical center line l, from (θ in figure a1, to (
It can be changed like θ4 in the bJ diagram. Moreover, when the conveyance direction is reversed, the position of the mounting portion 7 is changed as shown by the dashed line in FIG. 3A, and the leaf spring 5 is mounted in the opposite direction.

FIG. 12 shows an embodiment of the above-mentioned sixth means, in which a pair of upper and lower mounting portions 6.6' and 7.7' are aligned with two vertical center lines i.
horizontal mounting surfaces 22.t and tt, respectively.
22', 23.23'. 'The mounting ends 16,17 at both ends of the leaf spring 5 are bent horizontally outwards.

The upper mounting end 16 of this leaf spring 5 is fixed to the upper mounting portion 6 on the vertical centerline 11, and the lower mounting end 17 is fixed to the other vertical centerline! 8 is fixed to the lower mounting part 7'. To reverse the vibration direction, change the orientation of the leaf spring 5, as shown by the - dotted chain line, and place the upper end on the upper end attachment part 6' of the vertical center line lit, and the lower end on the other vertical center line! , respectively.

FIG. 13 shows an embodiment of the aforementioned seventh means, in which the upper and lower mounting parts 6.7 are provided on a common vertical center vAl and each has a horizontal mounting surface 22.23.

The mounting end portion 16 of the leaf spring 5 is bent inward, that is, in a direction facing the flexible portion 15, and is formed into a Z-shape as a whole. Moreover, when reversing the conveyance direction, the leaf spring 5 is attached in the opposite direction as shown by the - dotted chain line.

Although the above embodiments relate to a vibrating bowl feeder, the present invention can also be applied to other vibrating feeders, such as linear feeders.

Further, in each embodiment, upper and lower mounting portions 6.6', 7.
The structure of 7' may be an upside-down structure.

〔Effect of the invention〕

As described above, in this invention, since the mounting surface of the mounting portion of the leaf spring is vertical, the processing of the mounting surface and the drilling of screw holes, etc. on the mounting surface are all performed in the vertical or horizontal direction. be able to. Therefore, machining efficiency and machining accuracy can be improved.

[Brief explanation of drawings]

Fig. 1 is a sectional view of the embodiment, Fig. 2 is a partially enlarged sectional view of the same as above, Fig. 3 (a) and (b), Fig. 4 (a) and (b), and Fig. 5. Figures (a) and (b), Figures (a) and (b) of Figure 6,
Figure 7 (a) (bJ diagram), Figure 8 (a) (b) diagram,
Figures (a) and (b) in Figure 9, (a) and (b) in Figure 10 (
Figure C), Figures (a) and (b) of Figures 11, 12 and 13 are partially enlarged cross-sectional views of other embodiments, respectively.
FIG. 4 is a sectional view of a conventional example. 1... Base, 2... Anti-vibration rubber, 3... Lower vibrating body, 4... Upper vibrating body, 5... Leaf spring, 6.6'...
... Upper mounting part, 7.7'... Lower mounting part, 8... Upper mounting surface, 9... Lower mounting surface, 10.10'... ... Bolt, 11 ... Electromagnetic exciter, 12 ... Bowl, 13.13', 14.14' ... Mounting surface, 15
...Flexible part, 16.17...Mounting end, 18.18'...Threaded hole, 19...Spacer, 20...・Long hole,
21...Mounting surface, 22.22', 23.23'...Mounting surface, 25
...Boruto Natsuto. Patent applicant NTN Co., Ltd. Agent Kama 1) Text - Figure 2 // Figure 3 Figure 4 Figure 8 Figure 9 (a) (a) 1
Figure 0 (a) Figure 11 Figure 14

Claims (7)

[Claims] (1) A plurality of leaf springs are interposed between the lower vibrating body supported by the base and the upper vibrating body provided above, and are vertically opposed to each vibrating body and positioned horizontally. A vibration feeder in which mounting parts having offset mounting surfaces are provided and both upper and lower ends of a leaf spring are attached to the mounting surfaces of each mounting part, characterized in that the mounting surfaces of each of the mounting parts are formed vertically. feeder. (2) With respect to the vertical center line of the mounting part of either the upper or lower vibrating body, provide screw holes at symmetrical positions on the other vibrating body, and insert screw holes into either of the upper and lower vibrating bodies. The vibratory feeder according to claim 1, wherein the block-shaped mounting portion is screwed. (3) A pair of mounting portions are provided at symmetrical positions on the other vibrating body with the vertical center line of the mounting portion of either the upper vibrating body or the lower vibrating body as the center, and one of the pair of mounting portions is Claim (1) characterized in that both ends of a leaf spring are attached to one of the attachment portions of the vibrator and the attachment portion of the one vibrating body.
The vibration feeder described in 1). (4) The upper and lower mounting parts are provided on a common vertical center line, and the leaf spring is attached to the mounting surface of the upper mounting part on one side of the center line and the mounting surface of the lower mounting part on the other side of the center line. The vibratory feeder according to claim 1, wherein both ends are attached. (5) A plurality of leaf springs are interposed between the lower vibrating body supported by the base and the upper vibrating body provided above, and are vertically opposed to each vibrating body and positioned horizontally. In a vibratory feeder in which mounting portions with offset mounting surfaces are provided and both upper and lower ends of a leaf spring are attached to the mounting surface of each mounting portion, the mounting surface of one of the above-mentioned mounting portions is vertical. , a vibration feeder characterized in that the mounting surface of the other mounting part is horizontal. (6) A plurality of leaf springs are interposed between the lower vibrating body supported by the base and the upper vibrating body provided above, and are vertically opposed to each vibrating body and positioned horizontally. A vibratory feeder having staggered mounting portions and having both upper and lower ends of a leaf spring attached to the mounting surface of each mounting portion, wherein the mounting surfaces of each of the mounting portions are all horizontal surfaces. (7) A plurality of leaf springs are interposed between the lower vibrating body supported by the base and the upper vibrating body provided above, and each vibrating body is provided with mounting parts facing vertically, and each mounting In a vibrating feeder in which both the upper and lower ends of a leaf spring are attached to the mounting surface of the leaf spring, each of the above-mentioned mounting parts is provided on a common vertical center line, and the mounting surface of each mounting part is formed horizontally, and both ends of the leaf spring are A vibratory feeder characterized in that a horizontal mounting bent part is provided in a direction facing the central part of the vibrating feeder.