JP2019119603A - Aligned supply part feeder - Google Patents

Abstract

To solve a conventional part feeder's problem that the entire width thereof cannot be small because of its mechanism where the vertical vibration is slightly angled, the vibration causing a part to float, and the angled thrust-up vibration causes the part to advance by its power while the feeder advances and rotates inside the round bowl attached on the top of the vibration means, selecting the direction and overlapping for feeding.SOLUTION: For a parallel arrangement of multiple units or for a narrow space, the width is made narrower, and in place of a conventional part feeder, the selecting supply means is changed to a different method, and also a means with a similar productivity to that of the conventional part feeder is constructed.SELECTED DRAWING: Figure 1

Description

  FIELD OF THE INVENTION The present invention relates to an aligned feed parts feeder for parts used at various manufacturing sites. That is, it is comprised by the hopper part which receives a vibration from a baseplate by square shape, and an inclination rocking | fluctuation plate part. And in this inclined rocking plate part, it is rocked to the left and right with respect to the direction of movement, and a height adjustable type part passing gate that eliminates overlapping of parts, and parts are blocked on the part passing gate I placed an anti-sticking stay that I did not have to do anything. As a result, in the present invention, an alignment feeder (parts feeder) capable of supplying parts with a simple configuration and quiet and stable can be realized, and unlike the conventional swing and lift type parts feeder due to vibration, in a narrow space near the conveyor. Can be installed closely.

  The parts feeder that aligns and supplies parts is an essential part of an automatic machine that automatically assembles a product. It is used at the time of supply of parts for machines to do many tasks of human beings, such as assembling, inspecting and moving many parts on behalf of human beings. In order to assemble each part automatically, the parts are aligned and moved in the same direction in the same position, and the parts are stabilized in the fixed position by mechanical chuck or vacuum attached to the material handling device of the automatic machine. Chucking of parts is possible. For this purpose, it is a common practice to align and supply parts feeders, which are attached to most automatic assembly machines in the world. The method of moving parts with parts feeders is to use the movement of parts by giving vibration from the bottom side of the bowl in which the parts are contained from the bottom side. By providing a slight angle to the vertical vibration, the parts contained in the bowl arranged above the vibrator can be advanced little by little from the angled vibration from the bottom, and the outer side in the circular bowl Go forward while climbing the gentle uphill slope nearby. In the forward movement, the direction and the like are selected, and the parts are individually aligned and supplied, which is practically sufficient.

  However, this parts feeder rotates smoothly and slowly along the outer ring in the circular bowl, and moves up the gentle slope, so that the inner diameter of the bowl is positively sorted and attached, etc. Even if the outer shape of the main body is small, it does not fall below Φ400 mm. There is no distinction between the front and back of the part shape, and it is limited to a simple shape, but there is a drawback that this parts feeder can not be used when installation at narrow intervals is required. In addition, since vibration is the power source of all, things that are fragile due to vibration such as sweets and solid paint have the disadvantage of causing troubles to parts. In addition, conventional parts feeders change their vibration with a slight amount of weight when many parts are placed in a bowl, leading to a malfunction in sorting, so in order to secure many parts, they should be close to the parts feeder. Since the bowl of the parts feeder must be equipped with a hopper that can be fully replenished, wasted money was wasted.

  In JP-A-7-10254, since the shape of parts to be aligned is only a cylinder, it can not cope with parts having many other shapes and different thicknesses.

  Further, JP-A-2000-264420 shifts the core of the motor rotation so that the vibration which is the power source of the conventional parts feeder is shifted only in the lateral direction in all directions, and it is gentle in the flow direction as a whole. Because it has a mechanism to put out parts by having a proper inclination, it is difficult to move and sort the parts that have come to the position where the inclination is up, in a motion where the motor rotation is changed to rocking .

  Moreover, since the parts to be sorted are limited to coins and the physical sorting method is adopted, Japanese Patent Application Laid-Open No. 2001-209837 can use fragile parts such as sweets and solid paints by using this parts feeder. Absent.

  In addition, JP 2005-224762 is intended to break out the work, the dummy bowl used for that purpose is a mechanism that returns to the original height even though it can fall downward after being separated from the parts Because there is no, it can not be put to practical use. In addition, since the width of equipment is wide, parallel arrangement in a narrow space requires a large space, and it is not practical to use them side by side.

  In JP 2010-1128, parts in a simple shape which do not require distinction between the front and back are put in the hopper, and the parts in the hopper are taken out by giving vibration to the hopper, and the work advances forward by the conveyor. Although the bridge that occurs in order to put things in a row is eliminated with the rotating lever, this method can not be solved reliably. In addition, the height of the outlet from the hopper is set at a height slightly higher than the thickness of one work in order to eliminate the overlap of parts, but at this height the parts form a lump near the outlet and the parts come out It disappears.

  Moreover, Unexamined-Japanese-Patent No. 2012-224452 is the conventional sorting method in parts feeder bowls, and when paralleling a several parts feeder when supplying many types of workpieces, since width is too wide, it can not be put to practical use.

  Moreover, Unexamined-Japanese-Patent No. 2013-47141 aims at the alignment conveyance of bivalve shellfish, and can not be practically used for the alignment conveyance of a precise part.

  Moreover, Unexamined-Japanese-Patent No. 2015-3779 is packed in the parts storage container in which small directional parts were set using rocking | fluctuation, and it can not be used as a feeder.

  As an improvement measure, although a plurality of parts feeders are required to supply a plurality of parts, since the size of the mechanical device is limited, the width of the feeders should be reduced as much as possible. As another method, it is conceivable to push up the bottom plate up from the bottom to the parts stored in the hopper and discharge it from the top of the hopper, but the bottom of the hopper is rising when the hopper is replenished. As it becomes a condition, this method is not practical because the amount of supply can not be secured. Therefore, it must be replenished from the top and must be discharged from the bottom of the hopper. When parts are to be taken out of the hopper, if the height of the parts supply port is narrow, the parts will be pushed against each other and the parts will be clogged, so it is preferable that the height of the parts supply port can be adjusted, The height about twice the largest dimension of the part is the dimension that can be taken out without clogging the workpiece. However, it is possible to smoothly supply to the inclined rocking plate side by arranging the upper and lower slide adjustable rubber shutter that adjusts the height of parts supply port and the fact that parts are excessively supplied too much. become. Since parts supplied smoothly are multiple and overlap occurs, in order to eliminate the overlap, a part pass gate with dimensions slightly larger than the thickness of the part is provided, and the inclined rocking plate with the gate is moved in the traveling direction The overlap chute is eliminated by providing the rocking means which has a downward inclination and the inclined chute on which the parts passage gate is provided moves in a reciprocating manner 100 to 400 times per minute by 5 mm to the left and right with respect to the traveling direction. It becomes possible to pass through the parts passage gate one by one. However, since the parts flow in various directions, there are cases in which the part passage gate is blocked by sticking to the part passage gate. In order to prevent that, it is necessary to provide an antisticking stay that never sticks to the part passage gate. In addition, the sensor detects the flow of parts and becomes an unmanned feeder that enables hopper vibration and swing control of chutes with parts passing gates.

JP 7-10254 A Japanese Patent Laid-Open No. 2000-264420 JP 2001-20983 Japanese Patent Application Publication No. 2005-224762 JP 2010-1128 JP 2012-224452 JP 2013-47141 JP 2015-3779

  The problem to be solved is that the conventional parts feeder stacks several sheets of leaf springs, and fixes the base and upper bowl at an angle at three equal positions centering on the center, and the lower side of the bowl center Parts feeder in the bowl floats forward slightly by giving vibration to the top, it advances while rotating in the circular bowl, and it is a mechanism to sort and supply the direction and overlap etc. The overall width can not be reduced. Therefore, in order to arrange a narrow space or several units in parallel, the width is reduced and the conventional parts feeder is changed, the sorting supply means is changed to a different method, and a means having the same productivity as the conventional parts feeder It is to build.

  The present invention requires a large space by arranging a plurality of parts feeders side by side when arranging a plurality of parts feeders in parallel, and it is a great bad effect in constructing an input device arrangement to an automatic machine. Therefore, it is very important to narrow the width of the parts feeder. As a method, there is also a means for discharging the parts stored in the hopper from the top of the hopper. For that purpose, the bottom plate of the hopper is raised, and the raised parts are supplied by a chute with a downward slope. It is also possible. When the bottom rises, the capacity in the hopper is small, so the amount of parts replenishment can not be secured. However, it is desirable that parts replenishment be performed from above regardless of the remaining amount of parts. To make it possible, the bottom plate of the hopper is vibrated and the parts in the hopper come out of the lower part supply port of the hopper. The vibration applied to the bottom plate applies a hopper vibration run-out weight whose axial center is offset to the rotary shaft of the hopper vibration motor, and uses the vibration due to the centrifugal force of the rotation to give a light vibration to the hopper bottom plate. Vibration is transmitted throughout the hopper, and the best way is to ensure that the parts come out of the parts supply port at the bottom of the hopper. In addition, when parts are to be taken out of the hopper, if the height of the parts supply port is narrow, the parts will always be clogged with the parts supply port, so it is preferable that the height of the parts supply port can be adjusted. . However, with the height of the part supply port being increased, clogging does not occur, but overlapping of a plurality of parts occurs. In order to eliminate the overlap, a part passage gate of a size slightly larger than the thickness of the part is provided, the inclined rocking plate with the part gated gate is provided with a downward inclination in the advancing direction, and the inclined rocking plate is advanced By providing a rocking means which moves back and forth 100 to 400 times per minute little by little to the left and right with respect to the direction, the overlap is eliminated and the parts pass through the gate. However, since the parts flow in various directions, the part passage gate may be blocked by sticking to the part passage gate. In order to prevent that, it is necessary to provide a sticking prevention stay in order to never stick to the parts passage gate. In addition, it is the most important feature that it is a fully automatic parts feeder that can detect the flow of parts with a sensor and vibrate the hopper and swing the tilting rocking plate.

  The present invention is a parts feeder which can be installed in a narrow width which can not be achieved by the conventional parts feeder, and in the parts feeder using the conventional vibration, the vibration which is the power source of supply may cause deviation due to aging. Although adjustment is necessary, the alignment feed parts feeder of the present invention is a simple mechanism consisting of hopper vibration and tilting rocking plate rocking, so the vibration characteristics are stable and no adjustment by aging is necessary. Yes, and even if parts are damaged due to aging, they can be easily repaired. Moreover, since it mainly uses a simple mechanism, it has the advantage of being inexpensive.

(A) is a top view of the rocking | swiveling means which changed rotation of the motor into a linear reciprocating motion (rocking | fluctuation). (B) It is a side view which eliminates overlapping of parts by rocking | fluctuation and excluding standing up and obstructing advancing. (A) is the front view which showed the rocking | fluctuation mechanism of the inclination rocking | fluctuation plate of parts feeder. (B) is the side view which showed the rocking | fluctuation mechanism of the inclined rocking | fluctuation plate of parts feeder. (C) is a side view which tilts the part stuck on the parts feeder part passage gate. (D) is a side view showing a state in which only the lower part passes among the parts overlapped on the upstream side of the part feeder part passage gate. It is a perspective view which shows the state from which the conventional parts feeder was separated from the hopper for replenishment and the parts feeder for selection.

  The present invention is for aligning parts having a simple shape and no distinction between the front and back, but when installed in a narrow space in a machine, this can not be done with a conventional parts feeder. Depending on the size of the parts, assuming a thickness of 5 mm and an external diameter of 30 mm, the hopper size is 130 mm wide, 200 mm deep, 230 mm high, and the bottom plate of the hopper (Fig. 1-9) comes out Provide a downward slope of 11 ° in the direction.

  Arrange the parts supply port (Fig. 1-4) which opened about 50 mm under the hopper side plate on the down side so that the parts come out. However, since a large amount of parts are supplied in this state, the upper and lower slide adjustable rubber shutters (FIG. 1-3) are provided to adjust the parts to an appropriate height.

  On the lower surface of the bottom plate (FIG. 1-9) described above, a hopper vibrating motor (FIGS. 1-10) is disposed on the bottom plate at the center with respect to the downward direction, and is mounted parallel to the bottom plate.

  When the hopper oscillating motor run-out weight (Figure 1-12) is added to the shaft of the hopper vibration motor described above and rotated, the centrifugal force of the eccentric hopper run-out runout weight (Figure 1-12) It is possible to get a vibration. The vibration causes parts contained in the hopper to come out of the parts supply port (FIG. 1-4).

  Vibration-proof rubber that prevents vibration in order to avoid giving an adverse effect on the movement as a feeder by giving a change to the movement of the rocking by transmitting the vibration to the other and transmitting the vibration to the entire machine (Figure 1-11) is attached. Further, by preventing the vibration transmission to the other side by the above-mentioned anti-vibration rubber, the vibration for taking out the parts is more reliable and the useless force is reduced, and the noise is also reduced.

  The height of the parts supply port is about 50 mm, and the upper and lower slide adjustable rubber shutters described above are attached to adjust the amount of protrusion, and the inclined rocking plate described next by securing an appropriate height (FIG. It is possible to put out the appropriate amount supplied to -5).

  The parts supplied from the hopper section are then supplied to the inclined rocking plate. Parts that are supplied may overlap, and sometimes parts that are vertical may also go out simultaneously. Therefore, the inclined rocking plate is provided with rocking means (Fig. 2-A) rocking in the direction perpendicular to the downward direction, and in the middle of this, it is possible to adjust the parts slightly higher than the thickness of the parts By providing a parts passage gate (FIGS. 1-7) having a mouth (FIGS. 1-70), individual parts can be supplied to the conveyor without overlapping the parts.

  The rocking means arranges a slide shaft (FIG. 2-17) and a slide bowl bearing (FIG. 2-16) in order to rock in a direction perpendicular to the downward direction, thereby constructing a rocking mechanism. As a method of moving it, the core of the rocking motor (Fig. 1-14) is offset by 6 mm core, and a kind of oscillating cam follower (Fig. 1-15) for the vibration is attached. A quenching parallel groove (Fig. 2-71) having a width of 0.03 mm wider than the outer shape of (1) is disposed, and reciprocation is performed by a scotch yoke mechanism in which rotation of the motor is transmitted to linear movement.

  On the other hand, in the above configuration, overlapping parts can be eliminated and fed in the direction of the conveyor, but when coming out with the parts standing up, they will lean on the parts passage gate described above and block part passage openings. There may be a problem that the conveyor can not supply parts smoothly. As this trouble can not be prevented from leaning only by swinging the tilting rocking plate, the parts pass through the sticking prevention stay (Fig. 1-6) so that the parts will not lean against the parts passing gate. Located horizontally upstream of the gate. By providing the sticking prevention stay, it is possible to tilt the part leaning to the part passage gate to the upstream side and prevent the part from blocking the part passage port. By configuring in this manner, parts in various states supplied from the hopper can be reliably supplied to the conveyor without overlapping.

  In the conventional parts feeder, the leaf spring is at a slight angle with respect to the upper direction in order to move the parts, and vibration is given to the bottom plate of the bowl attached to the tip of the leaf spring. It is a mechanism to move the parts that enter. On the other hand, the present invention has the simple structure of utilizing the scotch yoke mechanism which changes the motor rotation to the swing, so that there is no failure and there is an advantage that the main body price can be provided inexpensively.

  Furthermore, since the conventional parts feeder is a vibration of a movement that pushes up the parts in the bowl from the lower side in a quick movement from the bottom, if many parts are put in the bowl, the weight changes the vibration, the vibration characteristics change and the malfunction Cause. Therefore, many parts can not be stored in the bowl of the conventional parts feeder. On the other hand, in the configuration of the present invention, stable supply of parts is possible without being influenced by variations in vibration, so even with a narrow hopper, a large capacity can be secured by increasing the depth and height, and as a result, the conveyor It has an advantage that the parts feeder of the present invention can be closely installed in the vicinity.

  Furthermore, the above-mentioned hopper vibration and rocking of the rocking plate have an advantage that vibration and rocking noise can be greatly reduced by using a scotch yoke mechanism for converting motor rotation into linear motion.

  There is no problem in aligning and supplying simple-shaped parts with conventional parts feeders, but if you have to place them in a small space, you have to place several units in parallel. If it is necessary, the conventional parts feeder is too large to use, but can be used in the present invention. Also, since the sound is quiet, there is no need for a soundproof cover, and because the structure is simple and inexpensive, the possibility of use is high.

100 Aligned supply parts feeder 1 Hopper 2 Parts 3 Vertical slide adjustable rubber shutter 4 Parts supply port 5 Tilting rocking plate 6 Sticking prevention stay 7 Parts passing gate 8 Conveyor 9 Hopper bottom plate (diaphragm)
DESCRIPTION OF SYMBOLS 10 Hopper vibration motor 11 Hopper vibration Anti-vibration rubber 12 Hopper vibration centering weight 13 Rocking means stand 14 Rocking motor 15 Rocking centering cam follower 16 Rocking slide bearing 17 Rocking slide shaft 18 For rocking plate fixing Block 19 Parts detection sensor 70 Parts passage 71 Hardened parallel groove

Claims (2)

A hopper (1) which is vibrated by a hopper vibrating motor (10) and capable of containing a large number of parts, and an inclined rocking plate (for supplying the parts supplied from the hopper to the belt conveyor in alignment) 5) in an aligned feeding part feeder composed of
In the hopper, an appropriate amount of parts are sequentially carried out to the inclined rocking plate by vibration from the parts supply port (4) provided at the lower portion of the hopper.
The inclined rocking plate slightly oscillates in the orthogonal direction toward the parts advancing direction to separate the overlapped parts among the parts sequentially taken out of the hopper from each other, and in the rocking of the parts, An alignment supply part feeder (100) characterized by having a part passage gate (7) for passing only the lowermost part of the overlapped parts whose overlap can not be completely separated from each other through the part passage opening (70).     The parts passage gate (7) is further provided with an antisticking stay (6) for preventing sticking of parts, and the antisticking stay is arranged to abut the part at a position higher than the upper half of the part height. By tilting the part stuck to the part passage gate to the upstream side and rocking at the same time, the part is configured to flow smoothly through the part passage port (70). Aligned feeding part feeder (100) according to 1).