TW201805217A - Bowl feeder comprising a loading surface and a vibration initiating source to convey an object in a floating status - Google Patents

Abstract

Provided is a bowl feeder, which reduces the extent (contact time or number of times) the object to be conveyed is brought into contact with the conveying surface, wherein the object is thrown into the storage portion of a bowl and conveyed by vibration in an expected direction, thereby preventing/suppressing the reduction of the conveying capacity. The bowl feeder (B) comprises a loading surface (B81) and a vibration initiating source that makes the loading surface (B81) vibrate, which enable the object to be conveyed (W) on the loading surface (B81) to be conveyed through vibration, wherein all or part of the loading surface (B81) is composed of porous material (BS), the gas supplied from a gas supply source (BA) is sprayed on to the object to be conveyed from below through the porous material (BS), whereby the object to be conveyed (W) floats upwardly from the loading surface (81).

Description

Bowl feeder

The bowl feeder according to the present invention includes a bowl for accommodating an object to be transported, and can transport objects such as workpieces existing in a storage section formed on the bottom surface of the bowl along a spiral bowl transport path that continues from the beginning to the storage section. Moving.

In the past, as a vibration conveying device that conveys an object to be transported (such as an electronic component) by vibration, a bowl feeder is known, which mainly includes a bowl capable of accommodating the object to be transported, and includes a bottom formed on the bowl. The storage portion and the bowl conveying path formed in a spiral shape along the inner peripheral wall of the bowl. Such a bowl feeder is configured such that the beginning end of the bowl conveying path is formed to be connected to the storage section, and the object to be conveyed from the predetermined input section to the storage section can be conveyed to the beginning of the bowl conveying path by vibration. It is conveyed along a bowl conveyance path to a predetermined supply destination. In addition, objects that are returned to the storage section (returned and put in) from the transfer path provided in the bowl transfer path or a transfer path downstream of the bowl transfer path are also transferred to the beginning of the bowl transfer path by vibration ( For example, refer to the following Patent Document 1).

[Prior technical literature]

[Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open No. 2006-309541

However, in the bowl feeder adopting the above-mentioned structure, the amplitude of the amplitude at the bottom of the bowl, that is, the storage portion, may vary due to the distance from the source or the starting frequency, especially the closer to the center of the bowl. Increasingly, the object to be transported into the storage portion tends to stay in the center of the bowl and its vicinity, and there is a case where the object to be transported cannot be smoothly transported to the beginning of the bowl transport path. In other words, the closer to the center of the bowl, the smaller the amplitude of the storage portion. Therefore, in the storage portion, the transportation object adjacent to the center of the bowl and the upward facing surface of the storage portion, that is, the contact opportunity and time of the mounting surface. It increases, and with this, the object to be transported becomes susceptible to static electricity (friction charging, contact charging, peeling charging). Then, due to static electricity, the force with which the object to be transported is attached to the mounting surface becomes larger. If the object to be transported with static electricity is continuously transported, the transport speed of the transport object will be lower than the desired transport speed. The object to be transported cannot be smoothly conveyed, and the handling capacity is reduced.

The present invention has been developed focusing on such a problem, and a main object thereof is to provide a bowl feeder that reduces the placement surface of a storage object on a storage portion that is put into a storage portion of the bowl and is carried in a desired direction by vibration. The degree of contact (contact time or number of times) can prevent / suppress reduction in handling capacity.

That is, the present invention relates to a bowl feeder including a storage portion formed on a bottom surface of a bowl capable of accommodating an object to be transported and capable of storing a plurality of objects to be transported, and a spiral-shaped bowl transport path formed in the aforementioned bowl. The inner peripheral surface and the start end are connected to the storage portion; the upward surface of the storage portion, that is, the mounting surface, and the upward surface of the bowl transportation path, that is, the bowl transportation surface are vibrated by the start source, thereby The transfer object on the mounting surface and the transfer object on the bowl transfer surface can be transferred to a predetermined transfer destination while being moved. Here, the "mounting surface" and the "pot conveying path" in the present invention include a horizontal or slightly horizontal surface (horizontal surface), or a surface (inclined surface, vertical surface) inclined at an inclined angle with respect to the horizontal. The shape of any of the concepts is not particularly limited. In addition, as an object to be transported, for example, minute parts such as electronic parts may be mentioned, but they may be articles other than electronic parts.

The bowl feeder of the present invention is characterized in that at least all or a part of the mounting surface is made of a porous material, and the gas supplied from the gas supply source passes through the porous object to the object to be transported on the mounting surface. The object to be transported is configured to float from the mounting surface by spraying the material.

In the case of such a bowl feeder, the gas to be supplied from the gas supply source is sprayed on the carrying object through the porous material, and the carrying object is forced to float from the carrying surface. It is possible to ensure that the object to be transported does not contact the mounting surface or that it is difficult to contact. In addition, in the bowl feeder of the present invention, all or a part of the bowl feeder is passed through a porous material. The inertia of the object to be transported on the mounting surface constituted by the vibration from the starter source moves in a predetermined direction. In the process of moving the object in the predetermined direction, it is possible to reduce the object to be transported and the object to be moved. Opportunity and time of surface contact. Therefore, compared with the structure in which the moving object will continue to contact the mounting surface, the moving object during transportation will be less prone to static electricity (frictional charging, contact charging, peeling) As a result, the object to be transported during transportation becomes difficult to adhere to the mounting surface, and a problem such as a decrease in the transport speed due to static electricity can be eliminated / suppressed. The object to be transported can be expected on the mounting surface. The smooth carrying speed. Therefore, according to the present invention, even if the mounting surface vibrated by the starter source is closer to the center of the bowl, the bowl feeder tends to decrease in amplitude, and the object to be transported on the mounting surface can still be carried. The object is efficiently and smoothly transported to the predetermined transport destination (the beginning of the bowl transport path) with a small amplitude.

In addition, in the bowl feeder of the present invention, not only all or a part of the mounting surface, but also all or a portion of the bowl conveying surface may be made of a porous material, and the gas supplied from the gas supply source may be transferred to the bowl. The object to be conveyed on the surface is sprayed with a porous material, whereby the object to be conveyed is configured to float from the bowl conveying surface. With such a configuration, compared with a configuration in which the moving object on the bowl conveying surface continues to contact the bowl conveying surface, the moving object during movement is less likely to be charged with static electricity (friction, contact, etc.). (Charged, peeled). As a result, it becomes difficult for the moving object to adhere to the bowl conveying surface, which can eliminate / suppress the problem of a decrease in the conveying speed due to static electricity. The object can be conveyed at a desired conveying speed on the bowl conveying surface. Smooth transportation.

In particular, in the present invention, if a bowl feeder is provided which has an electrostatic eliminator that sprays ionized air at least around the transported object floating from the mounting surface and the floating transported object by the gas from the gas supply source. Device, the static elimination device is used to spray ionized air on the floating transfer object and the surroundings of the floating transfer object, thereby being able to carry the transfer target including the surface that has been in contact with the mounting surface until the moment before floating. The ionized air is surely blown as a whole, and the ionized air can also be blown on a predetermined area of the mounting surface that the floating transport object has been in contact with until the previous moment. If it is configured as a static eliminator capable of injecting ionized air toward a floating object to be transported in this way, and shared as a static eliminator that sprays ionized air on a mounting surface located around the object to be transported, compared to an individual The advantages of installing a static eliminator that sprays ionized air on the object to be transported and a wide range of static eliminator that sprays ionized air across the entire mounting surface are advantageous in that the number of parts can be reduced. By reducing the cost, and by limiting the ejection area of the static eliminator, it is possible to reduce the weight of the static eliminator body and reduce the amount of ionized air used. In addition, the present invention may be configured as a bowl feeder including a static eliminator that sprays ionized air not only on the mounting surface but also around the transported object floating from the bowl transport surface and the floating transport object.

In addition, according to a bowl feeder provided with a static eliminator, a gas from a gas supply source is ejected from a gas supply source by passing a porous object on a carrying object on the mounting surface or a carrying object on the bowl carrying surface. An air flow is formed on the placing surface or the bowl conveying surface, so that the gas floats from the placing surface or the bowl conveying surface. The objects to be transported in this air flow are eliminated by static electricity. The airflow of the ionized air sprayed from the device will change the wind pressure distribution around the object to be transported. Even when a plurality of objects to be transported are caused by static electricity or adhesion on the mounting surface or the bowl transport surface, etc. In the case of attachment, the pressure distribution around the objects to be transported can cause irregular movements of the objects to be transported, and it is expected that the state of adhesion of the objects to be transported can be released.

In addition, in the present invention, ionized air can be used as the gas supplied from the gas supply source. In such a configuration, the gas is supplied from the gas supply source, that is, ionized air, and the self-mounting surface or bowl carrying surface is used. The floating transport object is in a state of being sprayed with ionized air at this point in time, which can quickly neutralize and remove static electricity, which helps to improve the handling capacity.

In addition, in the present invention, it is possible to configure to use ionized air as a gas system supplied from a gas supply source, and to provide a bowl feeder having the above-mentioned static eliminator, or to configure it as a gas system supplied from a gas supply source. A bowl feeder equipped with the above-mentioned static eliminator is used with ionized air, or a bowl feeder equipped with the above-mentioned static eliminator is used as the gas system supplied from a gas supply source.

According to the present invention, a gas is supplied to a mounting surface made of a porous material, and the gas is blown from the mounting surface by the gas blown through the porous material to the transportation object on the mounting surface. Can ensure moving The object to be transported is difficult to carry static electricity. Even with a small amplitude, the object to be transported can be transported at the desired transport speed in the direction of vibration given by the starter. This can prevent / suppress the reduction in the handling capacity of the bowl feeder. .

B‧‧‧ bowl feeder

B11‧‧‧Bowl carrying surface

B4‧‧‧Qi Zhenyuan

B81‧‧‧mounting surface

BA‧‧‧Gas supply source

BS‧‧‧Porous material (porous block)

W‧‧‧ Object to be transported

[Fig. 1] A schematic side view of a model in which the bowl feeder of the first embodiment of the present invention is partially cut.

[Fig. 2] A schematic side sectional view of a model in which the bowl is partially omitted in the same embodiment.

[Fig. 3] An external model view of a lens-type LED, which is an example of a transport object applied to the bowl feeder of the present invention.

[Fig. 4] A schematic diagram of a modification of the bowl feeder of the same embodiment corresponding to Fig. 2. [Fig.

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

As shown in FIGS. 1 and 2, the bowl feeder B of this embodiment is a spiral-shaped conveying path (a bowl conveying path) for transporting an object W (such as a lens LED as shown in FIG. 3) for electronic parts and the like. B1) The device is moved to a predetermined conveyance destination (supply destination) while being moved while being vibrated. The bowl feeder B of this embodiment is provided with a bowl B2, which transports the objects W to be transported in a group, and a support portion B3, which supports the bowl B2, and an activation source B4, which causes the bowl B2 to vibrate.

As shown in FIG. 1, the supporting portion B3 includes: a movable table B5 mounted on the bottom of the bowl B2; and a fixed table B6 fixed to the ground through the vibration-proof rubber BG; and a connecting section B7 connecting the movable table B5 and the fixed table B6. It is composed of a leaf spring or the like; it is a thing that supports the bowl B2 in a vibrating manner through the movable table B5.

As shown in FIG. 1, the starting source B4 of this embodiment is provided between the movable table B5 and the fixed table B6, so that the electromagnetic attractive force acts between the movable table B5 and the fixed table B6, and the bowl B2 is set to Torsional vibration with a high number of vibrations occurs. By vibrating the bowl B2, the object to be transported W contained in the bowl B2 can be moved along the transportation path 2 of the bowl B2.

The bowl B2, as shown in FIG. 2 (the same figure is a sectional model view of the bowl B2 extracted from FIG. 1), is a bowl-shaped object, which includes a storage portion B8 that is slightly circular in plan view, formed on the bottom surface, and can store a large number of The workpiece W; and the bowl conveying path B1 (also referred to as a track) are climbed along the inner peripheral wall B9 with a predetermined portion of the peripheral edge portion of the storage portion B8 as a starting end, and are formed into an inclined spiral shape.

The storage portion B8 has a mounting surface B81, which is a surface that is set to be higher on the center side than the outside in the radial direction. The storage portion B8 has the weight of the object to be transported W stored in the storage portion B8 by the vibration of the bowl B2, Then, the object to be transported W on the mounting surface B81 is moved outward in the radial direction. The object W to be moved outward on the mounting surface B81 in the radial direction reaches the beginning of the bowl conveying path B1, and thus moves along the bowl conveying path B1 through the beginning of the bowl conveying path B1.

The bowl conveying path B1 is a continuation of the start end to the storage portion B8, and the upward-facing surface, that is, the bowl conveying surface B11, is set to a flat surface inclined downward toward the outside in the radial direction, for example. In addition, due to the force outward in the radial direction and the inclination of the bowl conveying surface B11 among the conveying forces received by the conveying object W due to vibration, the conveying object W contacts the inner peripheral wall B9 of the bowl B2 and faces the downstream side (the bowl conveying). The terminal side of the path B1) is carried. In the present embodiment, a group means (not shown) is provided at a predetermined position of such a bowl conveying path B1, and the object to be transported W in a predetermined posture is transported to the downstream side in the conveying direction by the group means, and the non- The conveyed object W in a predetermined posture is returned to the storage section B8 (they are dropped). The bowl feeder B of this embodiment is configured to connect the end of the bowl transport path B1 to the beginning of a linear transport path (also referred to as a linear track) provided on a linear feeder (not shown) in a continuous manner, and It is possible to transport (supply) the transported objects W that have been grouped to the linear feeder.

In addition, the bowl feeder B of the present embodiment is a bowl conveying surface B11, which includes all or substantially all of the upward surface of the storage portion B8, that is, the placing surface B81, and the upward surface of the bowl conveying path B1. All or substantially all of them are composed of a block BS made of a porous material. Specifically, the storage area B8 and the bowl conveying path B1 are marked with a predetermined pattern in FIG. 2 (the same figure is a sectional model view of the bowl shown in FIG. 1), and a block BS made of a porous material is used. To constitute.

The porous material in this embodiment is, for example, a material obtained by sintering a mixture of a bone material made of powder and granules of an inorganic material and a binding material (binder) that connects the bone materials to each other. As made of inorganic material Examples of suitable aggregates made of powder and granular materials include alumina or silicon carbide, and suitable examples of the bonding material include vitrified, resinoid, cement, rubber, and glass. Wait. Such a porous material made of ceramics can be made into a molded product corresponding to a mold by putting a mixed material of an aggregate material and a bonding material into a molding mold and sintering it. The porous material has numerous pores formed therein by sintering process. The fine pores opened on the surface of the porous material are connected to the internal pores to form an air passage. Compared with the case of mechanical processing, the fine pores have a significantly smaller inner diameter, and numerous porous pores are formed on the entire surface of the porous material. In addition, the type of the aggregate material or the bonding material in the present invention is not particularly limited to the above-mentioned ones, and appropriately selected ones can be used. In this embodiment, an appropriate mold or the like is used to form a block-shaped porous material (a block BS made of a porous material) constituting most of the bowl B2. Hereinafter, the block BS made of a porous material is referred to as a "porous block BS".

As described above, the porous block BS is an object in which numerous fine pores are formed inside, and the fine pores opened on the surface are connected to the internal fine pores to form an air passage. In other words, the porous block BS has an interior through which fluid can flow (penetrate), and there are many holes throughout the surface that are exposed. In addition, each hole (fine air hole) is a minute size such that the object W to be transported does not fall into the hole, for example, a size of about 60 μm. As shown in FIG. 2, in the central portion of the porous block BS, a first cavity portion BS1 penetrating in the height direction is formed, and on the bottom surface of the porous block BS, a second cavity portion communicating with the first cavity portion BS1 is formed. Hollow section BS2. The outer peripheral surface of the porous block BS is made of a suitable material such as metal. The formed bowl-shaped shield BC is covered.

In the bowl feeder B of the present embodiment, the gas supply nozzle BN is provided near the second cavity BS2, and the gas supplied from the gas supply source BA is set from the gas supply nozzle BN to the porous block BS. Internal spray. In FIG. 2, a pipe connecting the gas supply source BA and the gas supply nozzle BN is indicated by a two-dot chain line, and a flow of a gas supplied from the gas supply source BA to the gas supply nozzle BN is modeled by an arrow.

In this embodiment, a plurality of gas supply nozzles BN are arranged at a predetermined pitch, and gas ejected from each gas supply nozzle BN to the porous block BS penetrates into the porous block BS, and It is discharged from the placement surface B81 of the storage portion B8 or the bowl transportation surface B11 of the bowl transportation path B1. In addition, it is set to cover the outer peripheral surface of the porous block BS with the above-mentioned shroud BC so that a fluid such as a gas cannot penetrate the outer peripheral surface of the porous block BS. In addition, the outer peripheral surface of the porous block BS may be set as a sealing layer formed by a sealing process using a resin or the like so as to prevent a fluid such as gas from penetrating the sealing layer. In this embodiment, as the gas supplied from the gas supply source BA, ionized air is used.

In the bowl feeder B of this embodiment, the bowl B2 is fixed to the movable table B5 by a bolt (not shown), for example. In this fixing process, the second cavity portion BS2 can be used as a fixing portion for bolts. In addition, if the vicinity of the outer periphery of the bowl B2 is fixed to the movable table B5, the second cavity portion BS2 will not be used as a fixed portion of the bolt, but will only function. It becomes an air passage (fluid passage). In either case, the hollow portions (the first hollow portion BS1 and the second hollow portion BS2) formed in or around the porous block BS can be understood as the purpose of allowing the gas supplied from the gas supply portion to be porous. The mass of the mass block BS.

In addition, according to the bowl feeder B of the present embodiment, it is possible to feed the transport object W that is put into the storage portion B8 and exists on the mounting surface B81 and the transport object W on the bowl transport surface B11 in a predetermined direction by vibration. It can be transported, and by the gas supplied from the gas supply source BA, the transport object W can be transported in a predetermined direction with the self-mounting surface B81 or the bowl transport surface B11 floating.

For example, as shown in FIG. 3 (a), the object W to be transported is a small electronic component called a lens-type LED, which is assembled by integrating a flat bottom surface W1 and a hemispherical lens portion W2. The area where the flat bottom surface W1 makes surface contact is large, and the area where the hemispherical lens portion W2 makes surface contact is small. Therefore, the posture (downward posture) of the lens portion W2 facing downward is unstable.

In view of this, when such a lens-type LED is transported by the bowl feeder B of this embodiment, the lens-type LED is directed downward from the porous block BS constituting the mounting surface B81 and the bowl transportation surface B11 of the storage portion B8. When the gas is blown, the lens-type LED in the downward facing posture shown in Figs. 3 (b) and (c) will be transformed into the posture shown in (d), that is, the posture in which the lens portion W2 faces upward ( (Upward posture). After the posture is changed, gas is continuously sprayed on the flat bottom surface W1 to maintain a stable upward posture of the lens-type LED, and smooth transportation by the gas can be performed. That is That is, if the bowl feeder B of this embodiment is used, it is not necessary to provide a posture conversion mechanism for carrying an object. In addition, in the same figure (b) and (c), the lens-type LED in the halfway position between the downward posture and the upward posture is represented by an imaginary line (double-dot chain line). In (d), the blowing direction of the gas is modeled by an arrow.

As described above, the bowl feeder B of this embodiment can transfer the transportation object W placed on the mounting surface B81 or the transportation object traveling on the bowl transportation surface B11, which is vibrated by the starter B4. W is conveyed in a predetermined vibration direction, and substantially all of the mounting surface B81 and the bowl conveying surface B11 of the storage portion B8 are composed of a porous block BS. The gas supplied from the gas supply source BA is placed on the mounting surface B81. The conveying object W or the conveying object W on the bowl conveying surface B11 is sprayed from below through the porous block BS, thereby generating a self-loading surface on the placing surface B81 and the bowl conveying surface B11. The airflow floating on B81 or the bowl conveying surface B11 can forcibly transport the conveyed object W in a state of floating from the mounting surface B81 or the bowl conveying surface B11. As a result, according to the bowl feeder B of the present embodiment, compared with the state in which the conveying object W performs the conveying process while continuously contacting the placing surface B81 or the bowl conveying surface B11, the conveying object in the conveying process can be reduced. Opportunity and time when the object W comes in contact with the mounting surface B81 or the bowl conveying surface B11. The object to be transported W during transportation is not easy to be charged with static electricity (friction charging, contact charging, peeling charging), and can eliminate / suppress the object being transported due to static electricity. The object W adheres to the mounting surface B81 or the bowl conveying surface B11, which causes a problem that the conveying speed is reduced. The object W to be conveyed on the placing surface B81 and the bowl conveying surface B11 can be conveyed. The object W is smoothly conveyed at a desired conveying speed. Therefore, according to the bowl feeder B of this embodiment, even if the mounting portion B81 vibrated by the starter B4 is closer to the center of the bowl B2, the bowl feeder B tends to have a smaller amplitude. The object to be transported W on the mounting surface B81 can still be efficiently and smoothly transported to a predetermined transport destination (the beginning of the bowl transport path B11) with a small amplitude.

In particular, in the bowl feeder B of this embodiment, not only the mounting surface B81, but also the bowl conveying surface B11 is made of a porous material, and the gas supplied from the gas supply source BA is transported to the object on the bowl conveying surface B11. W is sprayed from a porous material, thereby setting the transport object W to float from the bowl conveying surface B11. Therefore, for example, even if the bowl conveying surface B81 vibrates by the vibration source B4, In a predetermined place where the amplitude is relatively small such as a relative distance, the object to be transported W at the predetermined place can be efficiently and smoothly conveyed to a predetermined conveyance destination (the beginning of the bowl conveyance path B11) with a small amplitude.

In addition, according to the bowl feeder B of this embodiment, which can forcibly transport the transported object W on the self-mounting surface B81 or the bowl transporting surface B11, it is possible to effectively prevent / suppress damage to the transported object W. , Damage, dirt, or abrasion of the mounting surface B81 and the bowl conveying surface B11.

In addition, the bowl feeder B of this embodiment is provided with an ionizer (not shown), and transfers objects to be transported from the mounting surface B81 and the bowl conveying surface B11 by the gas from the gas supply source BA. The periphery of W and the floating transport object W is sprayed with ionized air. also, The static eliminator sprays ionized air on the floating conveyance object W and the surroundings of the floating conveyance object W, thereby making it possible to cover the surface including the placement surface B81 or the bowl conveyance surface B11 until immediately before the float. Ionized air is surely blown over the entire conveyance object W including the surface, and ionized air can also be blown into a predetermined area of the mounting surface B81 or the bowl conveyance surface B11 that the floating conveyance object W has touched until the previous moment. . Furthermore, the static eliminator that sprays ionized air toward the floating transfer object W is configured to share a mounting surface B81 or a bowl transfer surface B11 that is positioned on the periphery of the floating transfer object W. The static eliminator, compared with the static eliminator that sprays ionized air on the object W to be transported, and the static elimination on a wide range that sprays ionized air across the entire mounting surface B81 and the entire bowl conveying surface B11. As for the appearance of the device, it is advantageous in that the number of parts can be reduced and the cost can be reduced.

In addition, according to the bowl feeder B provided with the static eliminator, the source gas sprayed from below by the porous object BS on the transfer object W on the mounting surface B81 or the transfer object W on the bowl transfer surface B11. The gas from the supply source BA forms an air flow on the mounting surface B81 and the bowl conveying surface B11, which causes the gas to float from the mounting surface B81 and the bowl conveying surface B11. The flow of ionized air sprayed from the static eliminator will change the wind pressure distribution around the object W to be transferred, even if it is caused by static electricity or adhesion on the mounting surface B81 and the bowl conveying surface B11. When a plurality of objects to be transported W adhere to each other, they are divided by the pressure around the objects W to be transported. The cloth change can cause irregular behavior of each of the conveyance objects W, and it is expected that the adherence state of the conveyance objects W to each other can be released.

In addition, in this embodiment, since the ionized air is used as the gas supplied from the gas supply source BA, the object to be transported floats from the mounting surface B81 or the bowl conveyance surface B11 by the ionized air supplied from the gas supply source BA. The object W is in a state of being sprayed with ionized air at this time, and can quickly neutralize and remove static electricity, and can further improve the handling capacity.

The present invention is not limited to the embodiments described above. For example, in each of the embodiments described above, the storage portion of the bowl feeder and the bowl conveying path are formed by a common porous material (porous block), but the mounting surface constituting the storage portion is exemplified. The porous material and the porous material constituting the bowl conveying surface of the bowl conveying path may be formed as separate parts.

In addition, a plurality of areas separated from each other on the mounting surface or only one area may be formed of a porous material, or a plurality of areas separated from each other on the bowl conveyance surface or only one. The area is made of a porous material. That is, in the bowl feeder of the present invention, it is possible to employ a configuration in which a porous material is partially used instead of the entire mounting surface and the entire bowl conveying path. As an example of a configuration in which only a specific portion of the mounting surface is made of a porous material, only a central portion of a bowl and a portion adjacent to the central portion of the mounting surface that tend to have a relatively small amplitude can be made porous. Made of materials. In addition, as an example in which only a specific portion of the bowl conveyance surface is made of a porous material, the upstream direction (starting end) of the conveyance direction in the bowl conveyance surface or a portion adjacent to the upstream end or the bowl conveyance surface may be mentioned. To carry Part of the object's posture change.

Moreover, in the said embodiment, it can also be comprised so that it may be a surface which stands up at a predetermined angle with respect to a bowl conveyance surface from the inner peripheral wall of a bowl (refer to the code | symbol 9 of FIG. 1), and may form a bowl conveyance together with a bowl conveyance surface On the inward side of the path (the side facing the center of the bowl), the gas is not ejected. Specifically, the inward facing surface of the inner peripheral wall in the bowl may be set to a sealing layer that does not allow fluid to flow through the above-mentioned sealing process, or a predetermined region including the inward facing surface of the inner peripheral wall in the bowl may be set to It is made of porous material.

In addition, as shown in FIG. 4, the bowl feeder of the present invention may be configured by placing the mounting surface B81 of the storage portion B8 with a porous material, while the bowl conveying surface B11 of the bowl conveying path B1 is not porous. The material is constituted by a suitable material which is well-known. That is, in the present invention, it may be configured as a bowl feeder including a bowl B2, which is a porous material block BS forming a storage portion and a non-porous block BH forming a bowl transport path. The porous material blocks BS and the non-porous blocks BH are produced individually and are integrally assembled by appropriate fixing means. In addition, FIG. 4 is a schematic diagram corresponding to FIG. 2, and parts and parts corresponding to each other in each figure are marked with the same symbol.

The bowl B2 shown in FIG. 4 is a first hollow portion BS1 penetrating in the height direction at the central portion of the porous block BS, and a bottom portion of the porous block BS is formed to communicate with the first hollow portion BS1. 2 cavity portions BS2, and a ring-shaped third cavity portion BS3 communicating with the outer peripheral end of the second cavity portion BS2 and extending upward with a predetermined size is formed. In addition, the gas supply nozzle BN is provided in the vicinity of the second cavity portion BS2 and the third cavity, respectively. The position of the portion BS3 is set such that the gas supplied from the gas supply source BA is ejected from the gas supply nozzle BN to the inside of the porous block BS. In FIG. 4, as in FIG. 2, the pipe connecting the gas supply source BA and the gas supply nozzle BN is shown by a two-dot chain line, and the flow of the gas supplied from the gas supply source BA to the gas supply nozzle BN is modeled by an arrow. Representation. In addition, in the bowl B2 shown in FIG. 4, the outer peripheral surface of the porous block BS can be divided into a portion near the third cavity portion BS3 and a portion in contact with the non-porous block BH, and the porous block can be divided. The portion of the outer peripheral surface of the BS that is adjacent to the third cavity portion BS3 is set to allow fluids such as gas to penetrate, and the portion of the outer peripheral surface of the porous block BS that is in contact with the non-porous block BH is set to not provide fluid such as gas penetrate.

Even in such a bowl feeder, the object to be transported W on the mounting surface B81 is sprayed from below by the porous block BS by the gas supplied from the gas supply source BA, so that the object to be transported W can be forced to self-propelled. The mounting surface B81 floats. As a result, it is possible to reduce the conveyance compared to the case where the conveyance process is performed on the placement surface B81 to which the vibration is applied by the starter source while the conveyance object W continues to contact the placement surface B81. Opportunity and time when the object W comes in contact with the mounting surface B81. The object W to be transported during transportation is unlikely to be charged with static electricity (friction charging, contact charging, peeling and charging), and it is possible to eliminate / suppress the object W being attached to the load due to static electricity. The placing surface B81 causes a problem that the conveying speed is reduced, and the conveying object W on the placing surface B81 can be smoothly conveyed at a desired conveying speed. Therefore, according to the bowl feeder of this embodiment, the amplitude becomes smaller even as the mounting portion B81 vibrated by the start source is closer to the center of the bowl B2. With a higher tendency, the bowl feeder can still efficiently and smoothly transfer the transported object W on the mounting surface B81 to a predetermined transport destination (the beginning of the bowl transport path B11) with a small amplitude.

In addition, in the bowl feeder of the present invention, when the configuration is provided with a static eliminator that sprays ionized air on a transported object floating from the mounting surface or the bowl transport surface, it can be set to the entire mounting surface. Or, ionized air is sprayed on the entire bowl conveyance surface, or ionized air is sprayed on a specific portion of the mounting surface or a specific portion of the bowl conveyance surface. When it is set to inject ionized air to a specific part of the mounting surface or a specific part of the bowl conveying surface, by limiting the ejection area of the static eliminator, it is possible to reduce the weight of the static eliminator body and the ionized air. Reduced usage.

In addition, a configuration may be adopted in which positive ionized air and negative ionized air are alternately sprayed by a static eliminator. With such a configuration, no matter what kind of charged workpiece is, it can be reliably neutralized and removed by one of positive ionized air or negative ionized air, or ionized air of both. .

In addition, the spray time of the ionized air caused by the static eliminator can be set / adjusted based on various conditions such as the type of the object to be transported. Alternatively, it may be configured as a bowl feeder without a static eliminator.

In addition, the specific configuration of the excitation source in the present invention is not particularly limited, and a well-known thing can be used.

In addition, in the bowl feeder of the present invention, The spraying force of the gas supplied by the supply source to be sprayed onto the transporting object on the mounting surface or the transporting object on the bowl transporting surface is adjustable, or it can be configured to select a normal jetting gas or intermittent jetting.

As the gas supplied from the gas supply source, a dry gas may be used instead of ionized air. The specific configuration of supplying gas from the gas supply source to the porous material (the type of the gas joint such as a nozzle or the layout of the piping) is not particularly limited, and an appropriate configuration can be adopted.

In addition, the object to be conveyed, that is, the workpiece, is not limited to the above-mentioned lens-type LEDs. For example, various LEDs such as side view LEDs, or electronic parts other than LEDs, or objects other than electronic parts such as foods can be used. Make it an object of transportation.

In addition, in the present invention, the porous material formed in a block shape may be replaced or added in an additional manner, and it may be designed such that, for example, the entire mounting surface is formed by a porous material formed in a sheet shape or a plate shape. Or part or all or part of the bowl carrying surface.

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 scope of the present invention.

B1‧‧‧Bowl carrying path

B11‧‧‧Bowl carrying surface

B2‧‧‧ bowl

B8‧‧‧Storage Department

B81‧‧‧mounting surface

B9‧‧‧Inner peripheral wall

BA‧‧‧Gas supply source

BC‧‧‧Shield

BN‧‧‧Gas supply nozzle

BS‧‧‧Porous material (porous block)

BS1‧‧‧The first hollow part

BS2‧‧‧The second hollow part

Claims (4)

A bowl feeder includes a storage portion formed on a bottom surface of a bowl capable of accommodating a transportation object and storing a plurality of transportation objects, and a spiral bowl transportation path formed on an inner peripheral surface of the bowl and continuing to The storage portion; the upward-facing surface of the storage portion, that is, the mounting surface, and the upward-facing surface of the bowl conveying path, that is, the bowl conveying surface are vibrated by the start source, thereby allowing the mounting surface to be vibrated The object to be conveyed and the object to be conveyed on the bowl conveyance surface are moved to a predetermined conveyance destination, and the bowl feeder is characterized in that at least all or part of the placement surface is passed through a porous material. It is comprised so that the gas supplied from the gas supply source may be sprayed on the said carrying object on the said mounting surface through the said porous material, and the said carrying object may be comprised so that it may float from the said mounting surface. The bowl feeder according to item 1 of the patent application scope, wherein all or a part of the bowl conveyance surface is made of a porous material, and the gas supplied from the gas supply source is used for the conveyance on the bowl conveyance surface. The object is sprayed through the porous material, whereby the object to be conveyed is configured to float from the bowl conveying surface. The bowl feeder according to item 1 or item 2 of the patent application scope, further comprising: a static eliminator, which uses a gas from the aforementioned gas supply source. The body sprays ionized air at least on the periphery of the transported object floating from the mounting surface and the transported object floating above. The bowl feeder according to any one of claims 1 to 3, wherein the gas supplied from the gas supply source is ionized air.