JP2019001642A - Vibration transfer device - Google Patents

Abstract

A supply processing capability for supplying an object to be conveyed in a desired direction on a conveyance surface to a predetermined destination at a constant pitch without using a non-vibration conveyance path spatially separated from a vibration conveyance path. Provided is a vibration transfer device capable of preventing and suppressing the reduction of the vibration. A transport path in which a downstream end portion in a transport direction of a guide surface facing a linear transport surface is set to a porous surface configured by a porous material, and a porous surface (a suction target surface). And a suction unit 4 for sucking air from the predetermined direction through the porous material 22 and attracting the object to be conveyed W being conveyed on the linear conveyance surface 11 toward the porous surface 23 by vibration. Is set to a suction force at which the transport target W attracted to the porous surface 23 side is transported at a lower transport speed than the transport target W transporting the linear transport surface 11 upstream of the porous surface 23. . [Selection diagram] FIG.

Description

  The present invention relates to a vibration transfer device capable of moving a transfer object such as an electronic component on a transfer surface toward a downstream end (tip) in the transfer direction and transferring the object from a transfer direction downstream end of the transfer surface to a predetermined supply destination. It is.

  2. Description of the Related Art Conventionally, there is known a vibration transfer device (vibration feeder) that can transfer a workpiece, such as an electronic component, along a transfer path to a predetermined supply destination by vibration. Such a vibration conveyance device discharges a conveyance object conveyed on the conveyance surface of the vibrating conveyance path from the front end (downstream end in the conveyance direction) of the conveyance surface. For example, in a vibration transfer device that is set to be supplied onto a glass disk table that rotates at a constant speed, a disk is used so that inspection and processing such as appearance inspection of the object to be transferred on the disk table can be performed appropriately. It is required to arrange the conveyance objects discharged on the table at an equal pitch.

  However, although the conveyance object conveyed on the oscillating conveyance surface is conveyed toward the downstream end in the conveyance direction in an aligned state by an appropriate means, the interval between the conveyance objects on the conveyance surface depends on the degree of vibration. Therefore, it is impossible or extremely difficult to arrange the objects to be transported discharged from the front end of the transport surface (the downstream end in the transport direction) at an equal pitch on the disk table.

  Therefore, the apparatus includes a vibration conveyance path for conveying a conveyance object on a vibrating conveyance surface, and an alignment unit that guides and aligns the conveyance object with two jigs facing each other at an interval in the horizontal direction. A device provided with a vibration-free conveyance path between the conveyance path and the alignment unit that moves the conveyance object that has passed through the vibration conveyance path by a pressing force of a subsequent conveyance object that is closely arranged on the conveyance surface that does not vibrate without gaps. Is known (see, for example, Patent Document 1 below).

  With such a vibration transfer device, the transfer object moved from the transfer surface of the vibration transfer path onto the transfer surface of the non-vibration transfer path is pressed from the subsequent transfer object (force to push from the rear). ) Is moved in a vibration-free state on the conveyance surface of the vibration-free conveyance path. And it can align by moving a conveyance target object from a conveyance surface of a non-vibration conveyance path to an alignment part in a non-vibration state, and it discharges on a disk table from a tip (downstream end of conveyance direction) of an alignment part ( It is configured to reduce variations in the supply pitch of the transferred object to be transferred.

JP 2006-242952 A

  However, with the above-described configuration, the vibration-free conveyance path needs to be spatially independent from the vibration conveyance path so that the vibration of the vibration conveyance path is not transmitted to the vibration-free conveyance path. For this reason, the object to be transferred (transferred) from the vibration conveyance path to the vibration-free conveyance path is caught in the gap between the vibration conveyance path and the vibration-free conveyance path and becomes unstable, or the vibration conveyance path and the vibration-free movement path There is a risk of falling into the gap between the transport paths. In particular, the greater the vibration of the vibration conveyance path is set to improve the conveyance processing capacity, the larger the vibration width of the vibration conveyance path becomes, so the gap between the vibration conveyance path and the non-vibration conveyance path is also set large. Therefore, the above-mentioned problems are likely to occur, which hinders smooth conveyance processing. Such a problem becomes more prominent as the size of the conveyance object is smaller.

  In addition, if the movement of the transfer object on the transfer surface of the vibration-free transfer path depends on only the pressing force of the subsequent transfer object, the transfer object on the transfer surface of the non-vibration transfer path. Will continue to come into contact with the transfer surface of the non-vibration transfer path, the wear of the transfer surface of the non-vibration transfer path will be severe, the object to be transferred will be caught on the worn transfer surface, Inspection and replacement are necessary. In addition, it is conceivable that problems such as wear of the conveyance object due to contact with the conveyance surface and a decrease in yield due to the wear may occur.

  Furthermore, the above-described apparatus that requires a vibration-free conveyance path in addition to the vibration conveyance path not only increases the number of parts and thus the manufacturing cost, but is also affected by an excitation source that vibrates the vibration conveyance path. It is also necessary to clear the condition that the vibration-free conveyance path is supported in a stable posture under no circumstances, and these may become an obstacle when the apparatus is introduced.

  Further, with the above-described configuration, the last conveyance object is pressed by the subsequent conveyance object after the last conveyance object moves from the vibration conveyance path onto the conveyance surface of the vibration-free conveyance path. Therefore, when the last transfer object finishes moving from the vibration transfer path onto the transfer surface of the non-vibration transfer path, the transfer object existing on the transfer surface of the non-vibration transfer path is transferred in the transfer direction. There is also a problem in that it is stopped on the conveyance surface of the vibration-free conveyance path without moving to the downstream side, and is not conveyed to a predetermined supply destination, resulting in a decrease in conveyance processing efficiency.

  The present invention has been made paying attention to such a problem, and a main purpose thereof is a non-vibration in which a conveyance object conveyed in a desired direction on a conveyance surface is spatially separated from a vibration conveyance path. An object of the present invention is to provide a vibration transfer device capable of preventing and suppressing a decrease in supply processing capability for supplying a predetermined supply destination at an equal pitch without using a transfer path.

  That is, the present invention relates to a vibration conveyance device that conveys a conveyance object on a conveyance surface in a desired conveyance direction by vibration and supplies the conveyance target object to a predetermined supply destination. Here, the “conveying surface” in the present invention may be a surface that can convey the object to be conveyed, and is a horizontal or substantially horizontal surface (horizontal plane), or a surface inclined by a predetermined angle with respect to the horizontal (inclined). It is a concept that includes both a plane and a vertical plane. Moreover, as a conveyance target object, although microcomponents, such as an electronic component, can be mentioned, for example, articles other than an electronic component may be sufficient.

  And the vibration conveyance apparatus which concerns on this invention is the conveyance path which set at least the conveyance direction downstream end part or the conveyance direction downstream end part to the porous surface which comprised the porous material among the surfaces which face a conveyance surface among conveyance surfaces. And a suction unit that sucks air through the porous material from a predetermined direction of the suction target surface set in advance among the porous surfaces and attracts the transport target object being transported on the suction target surface to the suction target surface side by vibration. The transport object attracted to the suction target surface side by the suction force by the suction unit (and does not stop on the suction target surface) than the transport target being transported on the transport surface upstream of the suction target surface Also, the suction force is set to be transported at a slow transport speed.

  The “porous surface” in the present invention may be a surface set to all or a part of at least the downstream end portion in the transport direction of the transport surface, or at least the downstream end portion in the transport direction of the surface facing the transport surface. The surface may be set to all or a part of. In addition, the present invention includes both a configuration in which the “suction target surface” is set to the entire porous surface and a configuration in which the “suction target surface” is set to a part of the porous surface. As an example of the latter (a configuration in which a suction target surface is set as a part of the porous surface), the porous surface is divided into a plurality of regions in the transport direction, and one or a plurality of regions (regions continuous in the transport direction). Or a discontinuous region set intermittently in the transport direction) may be set as the suction target surface. In the present invention, as a specific example of the “predetermined direction of the suction target surface set in advance among the porous surfaces”, if the porous surface is set as the transport surface, “below the suction target surface” is set. If the configuration is such that the porous surface faces the transport surface, the “direction in which the suction target surface faces the transport surface” can be cited.

  With such a vibration transfer device, the suction unit can suck the transport object on the suction target surface or the transport target on the transport surface facing the suction target surface through the porous material (hereinafter, referred to as the “suction target surface”). In the description, “a transport object on the suction target surface or a transport target on the transport surface facing the suction target surface” is referred to as “a suction transport target object”), and is forcibly attracted to the suction target surface side. The moving speed of the object to be sucked and transported can be reduced as compared with the speed of transport of the transporting object moving on the transport surface upstream of the surface to be sucked. As a result, it becomes possible to transport a plurality of objects to be sucked and transported that are decelerated at the downstream end portion in the transport direction of the transport surface in a state in which they are arranged without gaps in the transport direction. It is possible to discharge at a constant pitch from the downstream end in the direction to a predetermined supply destination.

  As described above, the vibration transfer device according to the present invention does not require complicated control for finely adjusting the vibration force of the transfer surface so that a plurality of transfer objects are arranged without gaps in the transfer direction. Moreover, since the vibrating conveyance surface itself can be set as a continuous surface from the upstream end in the conveyance direction to the downstream end in the conveyance direction, the conveyance surface of the non-vibration conveyance path that is spatially separated from the vibration conveyance path is conveyed. It is possible to eliminate the problem that occurs if it is configured, that is, the conveyance object is caught in the gap between the conveyance surfaces and becomes unstable, or the problem that it falls into the gap, and it is a minute size conveyance object In addition, it exhibits a stable processing capability that can be supplied to a predetermined supply destination at an equal pitch.

  Furthermore, since the vibration transfer apparatus according to the present invention employs a configuration in which the object to be sucked is moved on the transfer surface without being stopped while being decelerated, the transfer object being moved is caused by vibration of the transfer surface. The timing at which the surface temporarily rises from the conveyance surface to become a non-contact state and the timing to become a contact state alternately come. Therefore, compared to a configuration in which the conveyance object continues to contact the non-vibrated conveyance surface and moves only depending on the pressing force of the subsequent conveyance object, the conveyance surface caused by the conveyance object continuing to contact The occurrence of wear can be prevented and suppressed, and smooth movement of the object to be transported on the smooth transport surface can be realized.

  In addition, according to the vibration transfer device of the present invention, it is not necessary to provide a vibration-free transfer path separately from the vibration transfer path, and no vibration is generated under the condition that the vibration transfer path is not affected by the vibration source. Since it is not necessary to consider the condition that the conveyance path is supported in a stable posture, the overall apparatus can be simplified and downsized compared to a configuration in which a vibration-free conveyance path is provided separately from the vibration conveyance path. .

  If the transport object is configured to move only by the pressing force of the subsequent transport object, the transport object to which the pressing force of the subsequent transport object does not act will not vibrate without moving further downstream in the transport direction. There is a problem in that it stops on the transport surface of the transport path and cannot be transported to a predetermined supply destination. However, according to the vibration transport device according to the present invention, such a problem can be solved.

  In the present invention, a transport path having a plurality of suction target surfaces along the transport direction can be applied. In this case, it is possible to set all the suction forces of the suction portions to the respective suction target surfaces to be the same, but the suction forces of the suction portions relative to the suction target surfaces on the downstream side in the transport direction are relatively set in the transport direction. It can also be set larger than the suction force of the suction part with respect to the upstream suction target surface.

  If the suction force of the suction portion relative to the suction target surface relatively downstream in the transport direction is set to be relatively larger than the suction force of the suction portion relative to the suction target surface upstream in the transport direction, As approaching, the braking force acting on the object to be sucked and transported increases, and it is possible to gradually reduce the moving speed of the object to be sucked and transported. Collisions with large impacts can be avoided.

  In particular, when the conveyance path is provided with a conveyance path body having a conveyance surface and a guide part separate from the conveyance path body, a part of the guide part can be set to be a porous surface. As an example, if the guide unit has a guide surface facing the transport surface and guides a transport object on the transport surface in the transport direction along the guide surface, at least the downstream end in the transport direction of the guide surface. The structure which set all or one part of the part to the porous surface can be mentioned. By setting the porous surface as the guide surface facing the conveyance surface, not the conveyance surface itself, large-scale processing on the conveyance path main body is not required, and the porous surface is provided on the guide portion opposite to the conveyance path main body. By performing the process of providing, it is possible to realize various vibration transfer devices according to the type of the transfer object and the required suction force.

  According to the present invention, a braking force is applied to a conveyance target by sucking air through a porous surface made of a porous material toward a moving conveyance target in a portion near the downstream end in the conveyance direction of the conveyance surface. The object to be transported in a desired direction on the transport surface is supplied to a predetermined supply destination at an equal pitch without transporting the spatially separated transport surface. It is possible to improve the conveyance processing capability of the vibration conveyance device.

1 is an overall view of a vibration conveyance device (linear feeder) according to a first embodiment of the present invention. The principal part enlarged view of FIG. The principal part exploded view of FIG. The principal part enlarged view of FIG. The top view of the principal part shown in FIG. FIG. 5 is a sectional view taken along line aa in FIG. 4. The figure which shows the conventional linear feeder. The figure which shows the modification of the conveyance surface in this invention corresponding to FIG.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the vibration transfer apparatus X according to the present embodiment supplies an object W (workpiece) such as an electronic component to a disk table T (for example, a glass disk table) that is a supply destination. It is. FIG. 1 shows a bowl feeder B that conveys a conveyance object W supplied from a hopper device (not shown) by vibration on a spiral conveyance path (bowl conveyance path B1), and a straight line continuous to the end of the bowl conveyance path B1. The parts feeder which assembled | attached the linear feeder L which has a shape-shaped conveyance path (linear conveyance path L1) is shown. And the linear feeder L is equivalent to the vibration conveyance apparatus X which concerns on this embodiment.

  The bowl feeder B includes a substantially circular storage part B2 formed on the bottom surface and a bowl conveyance path B1 formed in a spiral shape that is inclined upward along the inner peripheral wall starting from a predetermined portion in the peripheral part of the storage part B2. Also referred to as a spiral track).

  The storage unit B2 has a placement surface that is an upward surface set so that the center side is higher than the radially outer side, and moves the conveyance object W on the placement surface to the radially outer side. . The transport object W that has moved radially outward on the placement surface reaches the start end of the bowl transport path B1, passes through the start end of the bowl transport path B1, and moves along the bowl transport path B1.

  The bowl conveyance path B1 has a starting end that is continuous with the reservoir B2, and has a bowl conveyance surface that is an upward surface set to a flat surface that is inclined downward, for example, radially outward. Then, due to the force toward the radially outer side of the conveyance force received by the conveyance object W due to the vibration and the inclination of the bowl conveyance surface, the conveyance object W is in contact with the inner peripheral wall and is downstream in the conveyance direction (the end side of the bowl conveyance path B1). ). Alignment means (not shown) is provided at a predetermined position of the bowl conveyance path B1, and only the conveyance object W in a predetermined posture is conveyed downstream in the conveyance direction by the alignment means, and the conveyance object W that is not in the predetermined attitude is conveyed. It is configured to return (drop) to the reservoir B2. The conveyance object W in an aligned state conveyed by the bowl feeder B to the end of the bowl conveyance path B1 moves to the beginning of a linear conveyance path L1 (also referred to as a straight track) that is continuous with the end of the bowl conveyance path B1. The linear feeder L conveys the linear conveying path L1 to the end (tip).

  1 to 5 (FIG. 2 is an enlarged view of a main part, FIG. 3 is an exploded view of a main part of the linear feeder L shown in FIG. 2, and FIG. 5 is a plan view of the main part of the linear feeder L shown, FIG. 5 is an enlarged view showing a further main part of FIG. 2, and FIG. 6 is an end view taken along the line aa of FIG. A device that moves the conveyance object W in the conveyance direction F on the linear conveyance path L1, sequentially discharges it from the front end (downstream end in the conveyance direction F) of the linear conveyance path L1, and supplies it to a predetermined supply destination (disk table T). It is.

  The linear conveyance path L1, as shown in FIGS. 2 and 3, etc., includes a conveyance path main body 1 (chute base) having a linear conveyance surface 11 (corresponding to the “conveyance surface” of the present invention) extending linearly, A guide unit 2 having a guide surface 21 facing the linear conveyance surface 11 and a cover unit 3 covering the linear conveyance surface 11 from above are provided.

  The conveyance path body 1 moves the conveyance object W on the linear conveyance surface 11 that reciprocally vibrates by an appropriate vibration means from the upstream side in the conveyance direction F (the side where the end of the bowl conveyance path B1 is connected) to the downstream in the conveyance direction F. It conveys toward the side (the front end side of the linear conveyance path L1). The transport path body 1 is provided with a return transport path 12 for returning a transport target W whose transport posture is not a normal posture to the bowl feeder B (see FIG. 1). And in this embodiment, the linear conveyance surface 11 is formed over the full length of the elongate conveyance path main body 1, and the guide part 2 and cover are formed in the area | region ranging from the conveyance direction F middle of the conveyance path main body 1 to a downstream end. Part 3 is attached.

  As shown in FIG. 6, the linear conveyance path L <b> 1 in the present embodiment includes a linear conveyance surface 11 that is a flat horizontal surface, and a standing surface 13 that faces the linear conveyance surface 11 from one side of the linear conveyance surface 11. ing. Thereby, the conveyance target W on the linear conveyance surface 11 is conveyed downstream in the conveyance direction F in a state where one side surface is close to the upright surface 13.

  As shown in FIG. 6, the guide unit 2 has a guide surface 21 that faces the linear conveyance surface 11 and faces the upright surface 13. The end (tip) of the guide surface 21 is at the same position as the end (tip) of the linear transport surface 11 in plan view. As shown in FIGS. 4 and 5, the linear feeder L according to the present embodiment is configured such that the downstream end portion in the transport direction F (the downstream end in the transport direction F and the portion in the vicinity thereof) of the guide surface 21 is the porous material 22. It is set to the porous surface 23 comprised by these.

  The porous material 22 in the present embodiment is formed, for example, by sintering a mixture of an aggregate made of a granular material of an inorganic material and a binder (binder) that connects the aggregates. Preferable examples of the aggregate made of inorganic material granular materials include alumina and silicon carbide, and preferable examples of the binder include vitrified, zirenoid, cement, rubber, glass and the like. it can. Such a ceramic porous material 22 can be made into a molded product according to the mold by charging the mixed material of the aggregate and the binder into the mold and sintering it. The porous material 22 has innumerable fine pores formed therein by a sintering process, and the fine pores opened on the surface of the porous material 22 and the internal fine pores are connected to form an air flow path. The fine pores have a remarkably small inner diameter as compared with the case of machining, and are formed innumerably over the entire surface of the porous material 22. Note that the types of aggregates and binders in the present invention are not particularly limited to those described above, and those appropriately selected can be applied. In the present embodiment, the block-shaped porous material 22 constituting a part of the guide portion 2 is formed using an appropriate mold or the like. Hereinafter, the block body made of the porous material 22 is referred to as “porous block body 2A”.

  As described above, the porous block body 2A has innumerable fine pores formed therein, and has an air flow path in which fine pores opened on the surface and internal fine pores are formed continuously. That is, the porous block body 2A has an inside through which fluid can flow (permeate), and a large number of holes are evenly exposed on the entire surface. In addition, each hole (micropore) is each a micro size in which the conveyance object W does not fall into the hole, for example, the size of the conveyance object W is 0603 size (0.6 mm × 0.3 mm size). The pore diameter of the pores (micropores) is about 60 μm.

  In the present embodiment, a concave portion 24 in which the porous block body 2A can be set is formed in a predetermined portion of the guide portion 2, specifically, the tip portion, and the porous block body 2A is set in the concave portion 24. The guide surface 21 facing the linear transport surface 11 in the guide part 2 is continuous with the porous surface 23 facing the linear transport surface 11 in the porous block body 2 </ b> A without any gap in the transport direction F, and is uneven with the porous surface 23. It is set so as to form a flat surface that does not exist (see FIG. 5). In the present embodiment, the entire porous surface 23 or substantially the entire surface is set as the suction target surface. Therefore, the “porous surface 23” in the following description regarding the present embodiment means the same region as the “suction target surface”. In the present embodiment, an adhesive is applied to the surface of the concave portion 24 of the guide portion 2 that contacts the porous block body 2A with priority (the surface with a predetermined pattern in FIG. 5), and the porous block 2A. However, the means for fixing the porous block body 2A to the guide portion 2 is not limited to this, and it is also possible to fix the porous block body 2 using an appropriate fixing tool such as a bolt.

  Further, in the following description, the downstream side of the conveyance target F on the linear conveyance surface 11 in the conveyance direction F is referred to as “front side”, and the upstream side in the conveyance direction F is referred to as “rear side”. The direction perpendicular to the conveyance direction F is defined as the width direction (left-right direction), and the surface relatively closer to the center in the width direction of the linear conveyance surface 11 out of the two surfaces compared in the width direction is defined as the “inner surface”. In addition, a surface far from the center in the width direction of the linear transport surface 11 is defined as an “outer surface”.

  As shown in FIG. 4, the porous block body 2 </ b> A includes an inner side surface 2 </ b> Aa continuous to the guide surface 21 and an outer side surface 2 </ b> Ab that is a surface opposite to the inner side surface 2 </ b> Aa in a state set in the recess 24 of the guide unit 2. Only the ventilation surface with air permeability is set, and the other surfaces, that is, the upward surface 2Ac, the bottom surface 2Ad, the front surface 2Ae, and the rear surface 2Af are set as sealing surfaces. Specific processing for setting the sealing surface includes masking processing for applying an adhesive to the target surface, processing for fixing a non-breathable plate in close contact with the target surface, and the like. Can do. In this embodiment, a masking process is applied.

  In the linear feeder L according to the present embodiment, a gap of a predetermined size is formed between the outer surface 2Ab of the porous block body 2A in a state where the porous block body 2A is set in the recess 24 of the guide portion 2, and this The gap is set so as to function as the air chamber 2S. Moreover, the linear feeder L of this embodiment is provided with the suction part 4 which makes the space on the linear conveyance surface 11 which the porous surface 23 faces through the porous material 22 negative by sucking the air of the air chamber 2S. ing.

  Here, the guide portion 2 is made of a material having no air permeability (for example, stainless steel, metal, plastic, etc.), and as shown in FIGS. The chamber 2S (in other words, the air chamber 2S opening inward), the cavity 25 facing the air chamber 2S, and one end of the air joint 41 communicating with the cavity 25 and constituting the suction part 4 can be inserted. And an insertion port 26. In the present embodiment, the air suction port 27 is formed by the cavity 25 extending in the width direction and the insertion port 26 extending in the height direction.

The suction unit 4 includes an air joint 41 having one end attached to the air suction port 27, a suction source (not shown), and a pipe 42 (see FIG. 4) appropriately disposed between the air joint 41 and the suction source. Is. In addition, it is also possible to apply the suction part 4 further provided with an ON / OFF control valve or the like.
In the present embodiment, the guide portion 2 on which the porous block body 2A is mounted is fixed to the transport path main body 1 with bolts N. The timing at which the suction unit 4 is connected to the air suction port 27 may be any of the timing before or after the process of fixing the guide unit 2 to the conveyance path body 1.

  The cover 3 has a cover surface 31 that covers the linear transport surface 11 from above in a state of being fixed to the transport path body 1 with bolts N (see FIG. 6). In the present embodiment, the height dimension (separation dimension) from the linear conveyance surface 11 to the cover surface 31 is set to a dimension such that the conveyance object W on the linear conveyance surface 11 does not contact the cover surface 31. In addition, the cover part 3 used by this embodiment is comprised so that the height dimension from the linear conveyance surface 11 to the cover surface 31 can be changed according to the size of the conveyance target object W. FIG. The cover surface 31 of the cover unit 3 functions as a pressing surface that restricts the conveyance object W on the linear conveyance surface 11 from jumping upward and coming off the linear conveyance surface 11. The end (tip) of the cover surface 31 is at the same position as the end (tip) of the linear transport surface 11 in plan view. In FIG. 4, a predetermined portion including the cover surface 31 in the cover portion 3 is omitted so that the conveyance state of the conveyance object W can be grasped. In this embodiment, the guide part 2 is arrange | positioned at the one side of the left-right width direction of the conveyance path main body 1, and the cover part 3 is arrange | positioned at the other side.

  The usage method and operation of the linear feeder L configured as described above will be described.

  When the linear feeder L according to the present embodiment is used, when the transport path body 1 is reciprocally oscillated in the transport direction F by an appropriate operation and the air suction state by the suction unit 4 is turned ON, the linear feeder L of the present embodiment is used. Sucks the inside of the air chamber 2S of the guide portion 2 from the air suction source via the air joint 41. As a result, the porous block body 2 </ b> A that is the porous surface 23 (ventilation surface) continuous to the guide surface 21 is located in the vicinity of the downstream end in the conveyance direction F of the linear conveyance surface 11 and the porous surface 23 faces. The airflow of air sucked to the inner side surface 2Aa side is generated. This is because both the outer side surface 2Ab facing the air chamber 2S and the inner side surface 2Aa facing the conveying surface of the porous block body 2A are the ventilation surfaces (the porous surface 23 remains), and the porous block body 2A. This is based on the fact that air can permeate through the inside.

  Of the porous block body 2A, only the outer side surface 2Ab facing the air chamber 2S and the inner side surface 2Aa facing the transfer surface are set as a breathable ventilation surface, and the other surfaces, that is, the upward surface 2Ac, the bottom surface 2Ad, the front surface 2Ae, and the rear surface 2Af are set as sealing surfaces. Therefore, the linear transport surface 11 is compared with the aspect in which all surfaces including the upward surface 2Ac, the bottom surface 2Ad, the front surface 2Ae, and the rear surface 2Af are set as ventilation surfaces. Among these, the suction efficiency with respect to the conveyance target W during conveyance is increased in the vicinity of the downstream end in the conveyance direction F and facing the porous surface 23.

  With the configuration as described above, in the linear feeder L according to the present embodiment, suction is performed toward the porous surface 23 in the region LA in the vicinity of the downstream end in the transport direction F of the linear transport surface 11 and facing the porous surface 23. Out of the transport object W that moves toward the downstream end in the transport direction F on the linear transport surface 11, the transport speed of the transport object W that has reached the suction air flow generation area LA is expressed as linear transport. It can be made to decelerate from the conveyance speed of the conveyance target W which moves upstream from the suction | inhalation airflow generation area | region LA among the surfaces 11. FIG.

  Here, the suction force with respect to the conveyance target W can control the operation of the suction unit 4 by a control unit (not shown). In the present embodiment, the conveyance target W is not adsorbed on the porous surface 23, that is, the conveyance The suction unit 4 generates a suction force that is appropriately adjusted and set within a range in which the condition that the object W does not stop on the linear conveyance surface 11 and the condition that a braking force is applied to the conveyance object W is satisfied. Control by the control unit.

  The linear feeder L according to the present embodiment generates a suction force that satisfies such a condition by the suction unit 4, so that the porous surface 23 faces the downstream end in the transport direction F of the linear transport surface 11. Conveying the suction target object W toward the downstream end in the transport direction F by the vibration of the linear transport surface 11 while decelerating the transport speed of the target object W that has reached the area (suction airflow generation area LA). Can do. As a result, according to the linear feeder L according to the present embodiment, as shown in FIG. 4, in the transport direction F while decelerating the suction target object W that passes through the suction air flow generation area LA in the linear transport surface 11. It becomes possible to transport in a state of being closely arranged without a gap, and these suction target objects W are discharged from the downstream end in the transport direction F of the linear transport surface 11 to the disk table T as a predetermined supply destination at an equal pitch. can do. It should be noted that the length of the suction air flow generation area LA along the transport direction F can be adjusted and selected as appropriate. In this embodiment, as shown in FIG. Is set to a length that is arranged in the transport direction F without a gap.

  Therefore, by using the linear feeder L according to the present embodiment, the conveyance object W discharged at a constant pitch from the front end (downstream end in the conveyance direction F) of the linear conveyance surface 11 is placed on the disk table T that rotates at a constant speed. It is possible to arrange them at intervals, and it is possible to appropriately perform inspection / processing such as appearance inspection of the conveyance object W on the disk table T. The interval between the conveyance objects W arranged at an equal pitch on the disk table T can be adjusted by the rotation speed of the disk table T.

  As described above, in the linear feeder L according to the present embodiment, complicated control for finely adjusting the vibration force of the linear conveyance surface 11 so that the plurality of conveyance objects W are arranged without gaps in the conveyance direction F is performed. Since the vibrating linear transport surface 11 itself can be set as a continuous surface from the upstream end in the transport direction F to the downstream end in the transport direction F, the conventional configuration as shown in FIG. The vibration conveyance surface of the conveyance path Y to be performed and the vibration-free conveyance surface Z1 of the conveyance path Z that does not vibrate are spatially separated, and the conveyance object W on the vibration conveyance surface is moved to the vibration-free conveyance surface Z1 to thereby perform vibration-free conveyance. Eliminates problems that occur if the structure discharges from the downstream end of the surface Z1, that is, the conveyance object is caught in the gap between the vibration conveyance surface and the non-vibration conveyance surface Z1 and becomes unstable or falls into the gap. Can It exhibits a stable processing power can be supplied at an equal pitch be conveyed object of small size to a predetermined supply destination.

  Furthermore, according to the linear feeder L of the present embodiment, the object to be sucked and transported W is moved toward the downstream end in the transport direction F by the vibration of the linear transport surface 11 without being decelerated and stopped. The conveyance target W moves while being repeatedly lifted from the linear conveyance surface 11 so as to be in a non-contact state and a contact state alternately. Therefore, as compared with the configuration in which the conveyance object W continues to contact the vibration-free conveyance surface Z1 and moves only by the pressing force of the subsequent conveyance object W as shown in FIG. The occurrence of wear on the linear conveyance surface 11 due to continuing can be prevented and suppressed, and the smooth movement of the suction conveyance object W on the linear conveyance surface 11 can be realized.

  In addition, according to the linear feeder L according to the present embodiment, it is necessary to provide the vibration-free conveyance path Z having the vibration-free conveyance surface Z1 separately from the vibration conveyance path Y having the vibration conveyance surface as shown in FIG. In addition, since it is not necessary to consider the condition that the vibration-free conveyance path Z is supported in a stable posture under the condition that the vibration conveyance path Y is not affected by the vibration source, the comparison with the configuration shown in FIG. Thus, the entire apparatus can be simplified and downsized.

  Further, if the transport object W moves only on the non-vibration transport surface Z1 as shown in FIG. 7 only by the pressing force by the subsequent transport object W, the pressing force by the subsequent transport object W does not act. The conveyance object W stops on the vibration-free conveyance surface Z1 without moving further downstream in the conveyance direction F, and there is a problem that the conveyance object W cannot be conveyed to a predetermined supply destination. According to this, such a problem can be solved.

  Moreover, in the linear feeder L of this embodiment, the conveyance target on the linear conveyance surface 11 has the conveyance path main body 1 which has the linear conveyance surface 11, and the guide surface 21 which faces the linear conveyance surface 11 as the conveyance path L1. Since the guide portion 2 that guides W in the transport direction F along the guide surface 21 is applied and the downstream end portion of the guide surface 21 in the transport direction F is set to the porous surface 23, linear transport is performed. The processing of providing the porous surface 23 on the surface 11 is not necessary, and the existing linear transport path L1 can be used, and the transport object W transported downstream in the transport direction F along the guide surface 21 is transported. It is possible to reliably apply a braking force to the conveyance object W that has reached the downstream end portion in the direction F, eliminate the gap between the conveyance objects W, and to the disk table T that is the next process at regular intervals. Transport object W It is possible to feed.

  The present invention is not limited to the above-described embodiments. For example, in the above-described embodiment, the mode in which the conveyance direction downstream end portion of the guide surface that faces the conveyance surface is set to the porous surface constituted by the porous material is exemplified. In addition, a configuration in which the downstream end portion in the transport direction among the surfaces facing the transport surface is a porous surface formed of a porous material is also included.

  Furthermore, in this invention, the structure which set the conveyance direction downstream end part to the porous surface among conveyance surfaces can also be employ | adopted. As an example, regardless of whether a guide part or a cover part is provided, a porous material is disposed directly at least on the downstream end portion in the conveying direction of the conveying path surface, and a part of the conveying surface is made of a porous material. (Suction target surface). In this case, the suction unit sucks air through the porous material from below the preset suction target surface among the porous surfaces, and transports the transport target being transported on the suction target surface by vibration as the suction target surface. The transport object that exhibits the function of attracting to the surface side, and the transport object attracted to the transport surface side, which is the suction target surface, attracts the suction force by the suction unit is transporting the area upstream of the suction target surface of the transport surface What is necessary is just to set to the attraction | suction force conveyed with a slower conveyance speed. As a result, a braking force is applied to the object to be transported that has reached the surface to be sucked, and the object to be transported is transported toward the downstream end in the transport direction without stopping while decelerating on the surface to be sucked. . Therefore, even in such a configuration, the vibrating conveying surface itself provided with a porous surface in part is a surface that continues from the upstream end in the conveying direction to the downstream end in the conveying direction, including the porous surface. If it is the conventional structure shown in FIG. 7, the malfunction which arises can be eliminated.

  When adopting a configuration in which the downstream end portion in the transport direction of the transport surface is set to be a porous surface with a porous material, a base portion that forms an air chamber between the porous material and the porous material is provided below the porous material. By providing and sucking air in the air chamber, an air flow that attracts the object to be conveyed on the porous surface to the porous surface side can be formed.

  In the present invention, instead of the configuration in which the entire porous surface or substantially the entire porous surface as shown in the above-described embodiment is set as the suction target surface, only a part of the porous surface is set as the suction target surface. Or the structure which set the some suction object surface divided | segmented mutually along the conveyance direction to a porous surface is applicable.

  In particular, in the present invention, when a configuration in which a plurality of suction target surfaces separated from each other along the conveyance direction is applied, it is also possible to set all the suction forces of the suction portions with respect to each suction target surface to be the same. However, the suction force of the suction portion relative to the suction target surface on the downstream side in the transport direction can be set to be relatively larger than the suction force of the suction portion relative to the suction target surface on the upstream side in the transport direction. With the latter configuration, the braking force acting on the object to be sucked and transported increases as it approaches the downstream end in the transport direction, and the moving speed of the object to be sucked and transported can be gradually reduced, and sudden braking is applied. It is possible to avoid a collision with a large impact between the objects to be sucked and conveyed due to the fact that The number of suction target surfaces that are separated from each other along the transport direction is not limited to two, and may be three or more.

  When adopting a configuration in which multiple suction target surfaces separated from each other along the transport direction are adopted, the porous surface composed of a single porous material is divided into a ventilation surface area and a sealing surface area. By setting, all the suction target surfaces can be made of a common porous material. On the other hand, separate porous materials are provided at predetermined intervals along the transport direction in a predetermined region including the downstream end portion in the transport direction of the transport surface or the surface facing the transport surface, and the porous surfaces of the respective porous materials are sucked. By setting the target surface, it is possible to realize a configuration in which a plurality of suction target surfaces separated from each other along the transport direction are set.

  In the present invention, when a configuration in which a plurality of suction target surfaces separated from each other along the transport direction is applied, the number of suction target surfaces and the number of suction portions are set the same (for each suction target surface). A mode in which individual suction units are operated in association with each other), or a mode in which the number of suction surfaces is different from the number of suction units (for example, a common (single) suction unit is associated with all suction target surfaces. Any mode of the mode of operation) can be appropriately selected.

  Both at least the downstream end in the transport direction of the transport surface and at least the downstream end of the transport direction among the surfaces facing the transport surface may be set to a porous surface made of a porous material.

  In the present invention, a groove-shaped conveyance path in which the cross-sectional shape of the conveyance surface is curved or bent (for example, U-shaped, V-shaped, W-shaped, etc.) can also be applied. Even in this case, at least the downstream end portion in the transport direction of the transport surface or at least the downstream end portion in the transport direction of the surface facing the transport surface may be set to a porous surface made of a porous material.

  It is also possible to apply a porous material in which all surfaces are set as ventilation surfaces. In this case, a masking process for forming a sealing surface is not necessary.

  The suction unit in the present invention sucks the air in the air chamber set in a predetermined region of the transport path, thereby generating an air flow that attracts the transport object on the porous surface of the porous material facing the air chamber to the porous surface side. Even if the air chamber is formed or the air chamber is not set in a predetermined area of the conveyance path, the porous material is directly sucked to form an air flow that attracts the conveyance target to the porous material side. Good.

  The suction force of the suction unit may be always constant during the process of transporting the transport object, or may be changed at an appropriate timing by the suction force adjusting means.

  The vibration transfer device according to the present invention is not limited to a linear feeder having a linear transfer path, but a bowl feeder having a bowl transfer path and other vibration transfer apparatuses, for example, three-dimensional vibration independently in three different directions. The present invention can also be applied to an oscillating transfer device, an ultrasonic transfer device using ultrasonic vibration, and the like.

  Further, in the present invention, instead of or in addition to the porous material formed in a block shape or a plate shape, for example, the porous surface may be constituted by a porous material formed in a sheet shape.

  In the present invention, instead of the horizontal or substantially horizontal “transport surface”, for example, transport surfaces 11 and 13 set as inclined surfaces as shown in FIG. 8 can be applied. 8 is a schematic diagram corresponding to FIG. 6 showing a cross-section of the main part of the vibration transfer device having the transfer surfaces 11 and 13 set to be inclined surfaces.

  Further, the object to be transported may be an electronic component or something other than an electronic component such as food.

  In addition, the specific configuration of each part is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Conveyance path main body 11 ... Conveyance surface (linear conveyance surface)
2 ... Guide part 21 ... Guide surface 22 ... Porous material 23 ... Porous surface 4 ... Suction part W ... Transfer object X, L ... Vibration conveyance device (linear feeder)

Claims (4)

A vibration conveyance device that conveys a conveyance object on a conveyance surface in a desired conveyance direction by vibration and supplies the conveyance target object to a predetermined supply destination,
Of the transport surface, at least a transport direction downstream end portion or a transport path set to a porous surface constituted by a porous material at least a transport direction downstream end portion of a surface facing the transport surface;
A suction unit that sucks air through the porous material from a predetermined direction of a suction target surface set in advance among the porous surfaces, and attracts a transport target being transported on the transport surface to the suction target surface side by vibration. And
The suction force by the suction unit is a suction force that transports the transport target attracted to the suction target surface side at a transport speed slower than the transport target that is transporting the transport surface upstream of the suction target surface. A vibration transfer device characterized by being set. The vibration conveyance apparatus according to claim 1, wherein the conveyance path has a plurality of suction target surfaces along a conveyance direction. The suction force of the suction portion relative to the suction target surface relatively downstream in the transport direction is set to be relatively larger than the suction force of the suction portion relative to the suction target surface upstream in the transport direction. The vibration conveyance apparatus as described in. The transport path includes a transport path main body having the transport surface, and a guide unit that has a guide surface facing the transport surface and guides a transport object on the transport surface in the transport direction along the guide surface. It is equipped with
The vibration conveyance apparatus according to claim 1, wherein at least a downstream end portion in the conveyance direction of the guide surface is set as the porous surface.

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