JP4431826B2 - Separation and sorting device for workpieces and dummy balls - Google Patents

Description

The present invention relates to an apparatus for separating and sorting a rectangular parallelepiped and a sphere in a mixed state, and is in a mixed state mainly at the end of a plating process in a manufacturing process of a chip-type electronic component (hereinafter referred to as a workpiece). The present invention relates to a workpiece / dummy ball separation / sorting device provided to separate and sort a workpiece (cuboid) and a dummy ball (sphere) with high speed and high accuracy.

Conventionally, in the plating process in the manufacturing process of a workpiece (chip type electronic component), a spherical dummy ball is mixed as an electrical binder when plating the workpiece, and then the two are separated and selected after the plating is finished. The work is taken out and supplied to the next process.
As the dummy balls, iron alloy balls or ceramic balls that are plated with nickel are mainly used.

Conventionally, as a means for separating and selecting the workpiece and the dummy ball, 1. Inclined feeder system2. 2. Air blow method Although a sieve type device was used, each had the following problems.

The inclined feeder method is the most widely used. The existing parts feeder is used to supply a mixed workpiece and dummy ball onto the inclined surface of the feeder, and the workpiece is in contact with the inclined surface (cuboid). ) Is vibrated and transported on the inclined surface by vibration, but the spherical dummy ball (sphere) that makes point contact with the inclined surface does not rise by vibration and rolls down by its own weight, so that both are separated and separated. Is.
However, this means
1. It is greatly influenced by the supply state of the work, and there is a problem that it can not function effectively in a dense state where the work and dummy balls supplied from the popper part are in a dense state and the dummy balls are surrounded by the work in all directions, Therefore, it is required to supply a small amount little by little to control the supply state, and there is a problem that the separation and sorting efficiency is poor.
2. In particular, there was a problem that could not be dealt with at all in the separation and selection of a product in which a plurality of both were bonded to form a dumpling in the plating process.

The air blow method uses a specific gravity difference between a work and a dummy ball to separate the two by sending wind, but there is a problem that a good result cannot be obtained when the specific gravity difference is small.

In addition, the sieve method requires a precise sieve for each workpiece shape, and the sieving of extremely small and lightweight rectangular parallelepiped workpieces is inefficient and produces a large amount of sieve residue. In addition to being inefficient, there was a problem of damaging the workpiece.

In any of the above systems, since the apparatus becomes large, there is a problem that it is difficult to install and install in the processes before and after the chip manufacturing.
No. 3-69318 (No. 5-22076)

The problem to be solved is that, depending on the conventional method, it was not possible to separate and sort the workpiece and dummy ball into a workpiece and dummy ball at high speed and high accuracy with a compact device. It is.

"Equipment with separation block and separation wire"
The present invention is a transport plate equipped to vibrate and transport a workpiece on a transport surface installed at an inclination from a lower transport surface to a higher one by electromagnetic vibration.

A separation block in which one or more stepped steps are formed on an inclined surface that descends toward the conveyance surface from the top that is set higher than the conveyance surface in a part of the lower conveyance surface,

In addition, a separation wire is installed across the transfer surface at a position where the workpiece on the transfer surface is vibrated and transferred.

In the process in which the workpiece (cuboid) and dummy ball (sphere) are mixed and supplied to the top of the separation block, both roll down the stepped step, due to the difference in the drop impact and restitution coefficient of both After being separated and separated one by one, the dummy ball rolls down the separation block, then rolls down to the lower conveyance surface by its own weight, and the workpiece rolls down the separation block, and then the conveyance surface is high by vibration conveyance To the direction of

In addition, the state in which both of which have been vibrated and conveyed on the conveying surface are mixed with the separation wire once and broadly and thinly dispersed and developed along the separation wire by the vibration action,
Since the workpiece is a rectangular parallelepiped, it comes into contact with the transfer surface and has a large friction coefficient for vibration action. The workpiece is transferred over the separation wire, and since it is a sphere, it is a dummy with a small friction coefficient for vibration action by making point contact with the transfer surface. The ball cannot get over the separation wire and rolls to the lower side of the transfer surface under its own weight.

The problem has been solved by a separation / sorting device for separating a workpiece and a dummy ball, which is characterized by including a separation block and / or a separation wire.

"Continuous or intermittent vibration"
The present invention is a transport plate equipped to vibrate and transport a workpiece on a transport surface installed at an inclination from a lower transport surface to a higher one by electromagnetic vibration.
The transport plate is provided to continuously or intermittently vibrate, and the workpiece (cuboid) and the dummy ball (sphere) by continuous vibration.
Using the difference in inertia between the two applied to the workpiece (or cuboid) and the dummy ball (sphere) at the start and stop of vibration frequently performed during intermittent vibration, The problem was solved by a workpiece and dummy ball separation / sorting device, characterized in that both of the crowded states were dispersed and separated.

By providing a separation plate and / or separation wire on the conveyance plate, extremely high-speed and high-precision separation and sorting of workpieces and dummy balls were realized on unprecedented short conveyance paths.

In addition, since it can be made compact and lightweight, it can be easily installed and installed during the chip manufacturing process, and at the same time, it can be used as a work supply machine for equipment with a hopper function (appropriate amount supply by external signal).

Separation block, because the work and the dummy ball fall on the stepped inclined surface, especially when both of them are attached, due to the difference between the impact and the coefficient of restitution, etc. It can be dispersed and separated one by one.
This is a major feature that was not found at all in the conventional apparatus.

In particular, by intermittently vibrating the transport plate, a work (rectangular) and a dummy ball (sphere) are frequently started and stopped when vibration is frequently performed during intermittent vibration.
It is possible to very effectively disperse and separate both dense states by utilizing the large inertia added to the difference and the difference therebetween.

By providing a transport plate with a separation block and a separation wire so as to vibrate intermittently, the workpiece and dummy ball separation and sorting device that can most effectively separate and sort the workpiece and dummy ball could be realized. .

FIG. 1 is a front view showing a schematic configuration of an apparatus D according to an embodiment of the present invention, and supplies a mixed state of a work W and a dummy ball B from a hopper 2 to a transport plate P.
Reference numeral 3 denotes a discharge groove for discharging the separated and sorted dummy balls B, and reference numeral 4 denotes a chute that is separated, sorted and conveyed to supply the workpiece W to the next process. Reference numeral 5 denotes an electromagnetic vibration unit that vibrates and conveys the workpiece W of the conveying plate P and the chute 4.
The entire device D is provided as a floating structure through the vibration isolating rubber 6 of the base 7 so as not to transmit vibration to the outside. 8 is a support | pillar of a hopper.

2-10 is a figure which shows the structure of the Example conveyance plate P of this invention, and explanatory drawing which shows the effect | action.

Hereinafter, an embodiment of the device of the present invention will be described with reference to the drawings.
In the transport plate P provided to vibrate and transport the workpiece W on the transport surface 1 from the lower side to the higher side of the transport surface 1 inclined by electromagnetic vibration,

(See Figures 2-6.)
When viewed from the front, the conveyance surface 1 of the conveyance plate P is set to an inclined surface with the left rear corner portion being the lowest point 13 and the right front corner portion being the highest point 14, and the dummy ball B is placed on the left end portion of the conveyance plate P. The discharge groove 3 is provided with a chute 4 for the workpiece W at the right end,

The left front corner includes a separation block 9 in which a stepped step 11 having one or more steps (five steps in the illustrated example) is formed on an inclined surface descending toward the conveying surface 1 from the top 10 set higher than the conveying surface 1;

The separation wire 12 is installed obliquely across the transport surface 1 between the front center of the transport surface 1 and the left rear corner of the rear side,

(See FIGS. 6, 7, and 8.)
In a process in which the workpiece W (cuboid) and the dummy ball B (sphere) are mixed and supplied to the top 10 of the separation block 9, both W and B roll down the stepped step 11 and both W , B is dispersed and separated into one by one due to the difference in drop impact and restitution coefficient, and then the dummy ball B rolls down the separation block 9 and then rolls toward the lower side of the conveying surface 1 by its own weight and falls into the discharge groove 3 The workpiece W rolls down the separation block 9 and is then conveyed to the higher side of the conveyance surface 1 by vibration conveyance to reach the chute 4 and is supplied from the chute 4 to the next process.

(See FIGS. 6, 9, and 10.)
In addition, after rolling down the separation block 9, the mixture of both W and B that have been oscillated and conveyed on the conveyance surface 1 is once dammed by the separation wire 12 and along the separation wire 12 by vibration action. Wide, thinly distributed, deployed,
Since it is a rectangular parallelepiped, the workpiece W having a large friction coefficient with respect to the vibration effect due to surface contact with the conveyance surface is conveyed over the separation wire 12 to reach the chute 4 and is supplied from the chute 4 to the next process to be a sphere. Therefore, the dummy ball B having point contact with the conveying surface and having a small coefficient of friction with respect to the vibration action cannot get over the separation wire 12 and rolls to the lower side of the conveying surface 1 by its own weight and falls to the discharge groove 3 to the outside. To discharge

Separation / sorting device D for separating work and dummy balls provided to separate and sort work and dummy balls with extremely high accuracy and efficiency by using either or both of separation block 9 and separation wire 12 It is.

In the above, the transport plate P is provided so as to vibrate continuously or intermittently.

In particular, when it is prepared to intermittently vibrate, the workpiece W (cuboid) and the dummy ball B (sphere) each time the vibration frequently performed during the intermittent vibration is started and stopped.
However, there is a feature that it is possible to disperse and separate the dense state very effectively by utilizing the difference in inertia between the two.

  In addition, substantially the same operation and effect can be obtained even when the protrusions having substantially the same shape are formed across the conveying surface 1 instead of the separation wire 12.

By providing a separation plate and / or separation wire on the conveyance plate, it is possible to achieve extremely high-speed, high-precision separation and sorting of workpieces and dummy balls on an unprecedented short conveyance path. However, the device can be made extremely small and light.

Since it can be installed compactly, it can be easily installed and installed during the chip manufacturing process, and at the same time, it can be used as a work feeder for various equipment with a hopper function (appropriate amount supply by external signal).

Separation block, because the work and the dummy ball fall on the stepped inclined surface, especially when both of them are attached, due to the difference between the impact and the coefficient of restitution, etc. It can be dispersed and separated one by one.
This is a major feature that was not found at all in the conventional apparatus.

The present invention is not limited to workpieces and dummy balls, and can be used for various apparatuses for separating, dispersing, and sorting cuboids and spheres.

The front view which shows the structure outline of the Example apparatus of this invention. The front view of a conveyance plate, a top view, a right view, and a left view. FIG. 2 is a cross-sectional view taken along line AA in FIG. 1. FIG. 3 is a cross-sectional view taken along line B-B in FIG. 1. It is explanatory drawing of the state which installed the conveyance plate in inclination, a top view, the cutting | disconnection front view which shows an inclination state, and the cutting | disconnection left side view which shows an inclination state. FIG. 6 is a plan view of a transport plate, and is an explanatory diagram of the operation of separating and selecting a workpiece and a dummy ball. Explanatory drawing which shows the state in which a workpiece | work falls on a separation block. Explanatory drawing which shows the state in which a dummy ball falls on a separation block. Explanatory drawing which shows the state in which a workpiece | work jumps over a separation wire. Explanatory drawing which shows the state which a dummy ball does not jump over a separation wire, and falls to a low part with dead weight.

Explanation of symbols

D Invention device P Conveying plate W Work B Dummy ball 1 Conveying surface 2 Hopper 3 Discharge groove 4 Chute 5 Electromagnetic vibration part 6 Anti-vibration rubber 7 Base 8 Hopper support 9 Separation block 10 Top 11 Stepped step 12 Separation wire 13 Lowest score 14 Highest score

Claims (4)

In the transport plate equipped to vibrate and convey the workpiece on the transport surface installed at an inclination from the lower to the higher transport surface by electromagnetic vibration,
A separation block in which one or more stepped steps are formed on an inclined surface that descends from the top that is set higher than the conveyance surface toward the conveyance surface in a part of the lower conveyance surface,
In addition, a separation wire is installed across the transfer surface at a position where the workpiece on the transfer surface is vibrated and transferred.
When a workpiece (cuboid) and a dummy ball (sphere) are mixed, they are supplied to the top of the separation block, and both fall down the stepped step. After being separated and separated one by one, the dummy ball rolls down the separation block, then rolls down to the lower conveyance surface by its own weight, and the workpiece rolls down the separation block, and then the conveyance surface is high by vibration conveyance So that it is transported to
In addition, the state where both of the two that have been vibrated and conveyed on the conveying surface are once dammed with the separation wire and spread widely and thinly along the separation wire by the vibration action, and spread,
A workpiece with a large friction coefficient for vibration action due to contact with the conveyance surface because it is a rectangular parallelepiped is transported over the separation wire, and a dummy with a small friction coefficient for vibration action due to point contact with the conveyance surface because it is a sphere. The ball cannot get over the separation wire and rolls to the lower conveyance surface under its own weight.
The separation block and the separation wire are used to separate and sort the workpiece and the dummy ball.
Separation and sorting device for work and dummy balls. In the transport plate equipped to vibrate and transport the workpiece on the transport surface from the lower to the higher transport surface inclined by electromagnetic vibration,
When viewed from the front, the transport surface of the transport plate is set to an inclined surface with the left rear corner as the lowest point and the right front corner as the highest point. The left end of the transport plate has a dummy ball discharge groove and the right end. With workpiece shoots,
The left front corner is provided with a separation block in which one or more stepped steps are formed on an inclined surface that descends from the top that is set higher than the conveyance surface toward the conveyance surface,
In addition, a separation wire is installed across the transport surface diagonally between the center of the front side of the transport surface and the left rear corner of the rear side.
When a workpiece (cuboid) and a dummy ball (sphere) are mixed, they are supplied to the top of the separation block, and both fall down the stepped step. After being separated and separated one by one, the dummy ball rolls down the separation block, then rolls down to the lower conveyance surface due to its own weight, falls into the discharge groove, and the workpiece rolls down the separation block and then vibrates. It is transported to the higher transport surface and reaches the chute,
In addition, the state in which both of which have been vibrated and conveyed on the conveying surface are mixed with the separation wire once and broadly and thinly dispersed and developed along the separation wire by the vibration action,
Since the work is a rectangular parallelepiped, the workpiece having a large friction coefficient with respect to the vibration effect due to surface contact with the conveyance surface is conveyed over the separation wire and reaches the chute, and is supplied to the next process from the chute
Because it is a sphere, a dummy ball that makes point contact with the conveyance surface and has a small friction coefficient against vibrations cannot get over the separation wire, rolls to the lower conveyance surface due to its own weight, falls into the discharge groove, and is discharged to the outside. In this way, the workpiece and the dummy ball are separated and selected by the separation block and the separation wire.
The apparatus for separating and selecting a workpiece and a dummy ball according to claim 1. In the transport plate equipped to vibrate and convey the work on the transport surface installed at an inclination from the lower one to the higher one by electromagnetic vibration,
A separation wire is installed across the transfer surface at a position where the work on the transfer surface is vibrated and transferred.
The workpiece (rectangular body) and the dummy ball (sphere) that have been vibrated and conveyed on the conveying surface are once dammed up with a separation wire, and both of the dense state are widened along the separation wire by vibration action. Thinly distributed, unfolded,
Since the workpiece is a rectangular parallelepiped, it comes into contact with the transfer surface and has a large friction coefficient for vibration action. The workpiece is transferred over the separation wire, and since it is a sphere, it is a dummy with a small friction coefficient for vibration action by making point contact with the transfer surface. The ball can not get over the separation wire, it is prepared to separate and sort the workpiece and dummy ball so that it rolls down by its own weight to the lower transfer surface,
The apparatus for separating and selecting a workpiece and a dummy ball according to claim 1 . Instead of a separation wire, a ridge is formed across the conveying surface.
The apparatus for separating and selecting a workpiece and a dummy ball according to claim 1 .