JP2011084290A - Feeder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a feeder which prevents jamming of lump materials and clears up the jammed condition of the lump materials for continuous feeding, thus avoiding the breakage of the lump materials or burnout of a motor to improve workability. <P>SOLUTION: In the feeder, the rotary power of a motor 7 is transmitted to a rotating shaft via a power transmission means to rotate a disc 9, by which lump materials in housing holes 9b are transferred to feeding outlets 11 and are sent out therefrom. The power transmission means has a fixed pulley with a motor shaft inserted through a shaft hole and a movable pulley which can slide in a direction of separating away from the fixed pulley along the motor shaft as the motor shaft is kept inserted through the shaft hole, the fixed pulley and the movable pulley being integrated together by a magnet 10. The power transmission means is composed of a driving pulley, a driven pulley disposed on the rotating shaft, and an elastic annular belt which is stretched between the movable pulley and the driven pulley to transmit the rotary power of the driving pulley to the driven pulley. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a feeder that feeds out lump-like articles, such as tablets and capsules, one by one from a hopper one by one.

  Conventionally, as a feeder for discharging a lump such as tablets and capsules one by one, a hopper that drives a motor provided on a support (corresponding to the “base” of the present invention) and supports the driving force on the support A plurality of openings formed in the supply turntable are transferred to an inner supply turntable (corresponding to the “disk” of the present invention) and rotated to rotate the supply turntable. Each of the support portions (corresponding to the “housing hole” of the present application), moved to the discharge portion (corresponding to the outlet of the present invention) of the support, and discharged from the discharge portion. A feeder is used (for example, see Patent Document 1).

JP 2000-203525 A

  In the feeder having such a configuration, if the lump is clogged between the opening and the discharge part and the rotation of the supply turntable is prevented, the lump may be damaged or the motor may be burned. is there.

  Therefore, in the present invention, firstly, it is a first main problem to provide a feeder having a configuration in which a lump is difficult to be clogged between the opening and the discharge portion.

  In addition, recently, in order to avoid a situation where the lump is damaged as described above or the motor is burned out, it is early that the lump has been clogged between the opening and the discharge part, Alternatively, it seems that a feeder having a configuration for reliably detecting and stopping the driving of the motor has been developed.

  However, even if a blockage is clogged between the opening and the discharge part, such an idea itself is now available for a feeder having a configuration capable of eliminating the clogging by itself and continuing the feeder operation. Never before.

  Therefore, in the present invention, when the lump is clogged, further, the clogging is eliminated using its own mechanism, and further, the lump is continued to be fed, and the lump is damaged. The second main problem is to provide a feeder that can improve the workability by avoiding the occurrence of problems such as burnout of the motor and the motor.

  The first feature of the feeder according to the present invention is that a disk in which a plurality of storage holes capable of storing a lump object to be fed one by one is arranged on a circle centered on a shaft hole is supported by a support means. The shaft hole is engaged with a rotation shaft arranged with a tip protruding from the surface of the base, and is rotatably arranged, and the lump is fed to the base one by one on the back side. A feeding opening is formed, and the disk is rotated by transmitting the rotational force of a motor as a drive source through power transmission means, and is formed upstream of the position where the feeding opening is formed in the rotation direction of the disk. A feeder configured to transport the chunk stored in the storage hole in the storage hole to the feeding outlet, and to feed the chunk from the feeding outlet; Mo A fixed pulley fixedly placed with the shaft inserted through the shaft hole, and slidable in a direction away from the fixed pulley along the motor shaft with the motor shaft inserted through the shaft hole Drive-side pulley that can be rotated integrally by adsorbing the movable pulley by the magnetic force of a plurality of magnets arranged at equal intervals in the circumferential direction centering on each axis on the opposing surfaces. A driven pulley disposed on the rotating shaft, and an elastic annular belt that is stretched between the movable pulley of the driving pulley and the driven pulley and transmits the rotational force of the driving pulley to the driven pulley. It is in the point comprised from.

  The feeder configured as described above normally has a driving pulley including a fixed pulley that constitutes a driving pulley and a movable pulley that rotates integrally by adsorbing the rotating force of the motor by a magnetic force. The disc is transmitted to the driven pulley via the elastic annular belt and engages the shaft hole with the rotating shaft fixed to the driven pulley, and the disc is rotated upstream from the position where the delivery port is formed in the rotating direction of the disc. In the lump containing area formed in the lump, the lump stored in the storage hole of the disc is transported to the feeding outlet, and the lump is fed out one by one from the feeding outlet.

  In the unlikely event that a lump is clogged between the storage hole and the outlet, the power transmission mechanism of the feeder according to the present invention prevents the rotation of the disk, thereby rotating the rotating shaft engaged with the shaft hole of the disk. The rotation of the movable pulley of the driving pulley on which the elastic annular belt is stretched and wound between the driven pulley and the driven pulley is also delayed, but at this time, the fixed pulley that rotates by the rotational force of the motor Still rotating, the elastic annular belt stretched on both pulleys is shrunk on one side separated by an imaginary line connecting the rotation centers of both pulleys and stretched on the other side, so that the driven side The restoring elasticity in the direction of rotating the pulley in the reverse direction is accumulated. When the stationary pulley is still rotated by the rotational force of the motor, and the restoring elasticity of the elastic annular belt becomes larger than the magnet's attractive force, the magnets arranged on the movable pulley have been attracted to each other until then. The state of adsorption between the magnets arranged on the fixed pulley is once released, and then adsorbed again with the magnets arranged on the upstream side in the rotation direction of the fixed pulley. At that time, the movable pulley instantaneously rotates in the direction opposite to the normal time (back-turning rotation). This swing-back rotation is transmitted to the driven pulley via the elastic annular belt, and the disk is rocked in the reverse direction, so that clogging of the lump between the storage hole and the outlet can be eliminated. In addition, by transmitting the driving force of the motor from the side of the driving pulley consisting of the fixed pulley and the movable pulley, which are attracted again, to the driven pulley via the elastic annular belt, it is possible to continue to perform normal feeding. Yes ("self-recovery function" that keeps the lump out).

  The second feature of the feeder according to the present invention is that it can be replaced with a disk in which storage holes having different shapes are formed in accordance with a lump object to be fed.

  In this way, according to the lump that is provided for feeding, a plurality of patterns of discs in which storage holes with different shapes and sizes are prepared in advance, and if appropriately replaced, It is possible to more reliably prevent the clogging of the lump.

  A third feature of the feeder according to the present invention is that a rotating disk is rotatably embedded in the surface of the base so that the rotating shaft is inserted into the shaft hole, and the disk is rotated. In a state where the shaft is inserted through the shaft hole, the shaft is integrated with the rotating disk and is rotatably fixed.

  As described above, by adopting a configuration in which the disk is attached to and detached from the rotating disk, the disk replacement work and maintenance inspection work can be simplified.

  Further, according to a fourth feature of the feeder of the present invention, the base is fixedly disposed on the support means so that the surface has an angle with respect to the horizontal, and the feeding port is inclined. It is formed so as to correspond to the upper side of the rotation path of the storage hole of the disk disposed on the base, and further, the lump for the feeding is accumulated on the lower side of the rotation path of the storage hole of the disk. Thus, a detachable hopper is provided that allows the lower side to function as the lump containing area.

  The feeder configured as described above reliably stores the lump accumulated in the lump containing area formed on the lower side in the storage hole of the disk and rotates the lump as the disk rotates. Can be conveyed to the delivery port formed at the upper level and fed out from the delivery port.

  Furthermore, the fifth feature of the feeder of the present invention is that the surface of the disk is guided to the lower side of the disk disposed on the inclined base, and a lump for use in the stored feeding can be stirred. This is that a proper stirring part is formed.

  The feeder configured as described above can more reliably store the lump accumulated in the lump receiving area formed on the lower side in the disk receiving hole by rotating the disk.

  Furthermore, a sixth feature of the feeder according to the present invention is that the base is provided with a shooter that constitutes a path for feeding a lump from the feed outlet to the back side of the base.

  The feeder configured as described above can transport and supply a lump to a desired downstream path by a shooter. For example, the anti-base side tip of the shooter may be positioned above a belt conveyor that constitutes the lump packing transportation path, or may be positioned above the opened medicine bottle. it can.

  A seventh feature of the feeder according to the present invention is that the shooter is formed in a bowl shape having a bottom wall and side walls erected on both sides thereof, and an upper end side (introducing portion) faces the feeding outlet. In addition, the bottom wall is disposed so that the end portion in the rotation center direction of the storage hole of the disk located at the feeding outlet is at the same level, and the side wall is at least upstream in the rotation direction of the disk at the upper end side. The inner surface of one side wall located on the side is formed so as to expand in a direction away from the other side wall.

  Since the feeder configured in this way can facilitate the sweeping of the lump at the delivery port portion, it is possible to prevent the lump from being clogged at the feed port.

  The eighth feature of the feeder according to the present invention is that it has a counter capable of counting the lump that is fed out of the shooter.

  The feeder configured in this way can eliminate counting errors by counting the lump that is fed out one by one in the shooter.

  Thus, according to the feeder of the present invention, it is possible to suppress the blockage of the blockage of the blockage by providing the configuration for suppressing the occurrence of blockage of the blockage, and the blockage of the blockage. By providing a “self-recovery function” that continues the feeding of the lump, if the lump is clogged at the feeding outlet, the lump can be removed by continuing to feed the lump while further eliminating the clogging. It is possible to improve the workability by avoiding the occurrence of problems such as damage to the motor and burnout of the motor.

  The feeder of the present invention has a simple configuration, has a small number of parts, and has an excellent effect that it can be provided at a low cost.

The perspective view which shows the whole feeder of this embodiment The top view which shows the principal part structure of the feeder of this embodiment Side view showing the main configuration of the feeder of the present embodiment Front view perspective view showing the main configuration of the feeder of the present embodiment Rear view perspective view showing the main configuration of the feeder of the present embodiment The rear view which shows the principal part structure of the feeder of this embodiment AA sectional view of FIG. Rear view partial cross-sectional perspective view showing the main configuration of the feeder of the present embodiment Explanatory drawing showing an example of the top shape of the disc (A) is a principal part enlarged view of the shooter of another structure, (b) is a perspective view which shows the bottom wall upper surface.

  Hereinafter, embodiments of the feeder of the present invention will be described. In addition, it demonstrates supposing a tablet as a lump object made into the feeding object in the feeder of this embodiment.

  As shown in FIGS. 1 to 8, the feeder according to the present embodiment includes a base 3 fixedly supported by the support means 1, and a rotating shaft 4 that is rotatably disposed with a tip protruding from the surface of the base 3. A disk 9 disposed rotatably with respect to the base 3 by engaging a shaft hole 9a with the rotary shaft 4, a DC motor (hereinafter referred to as a motor) 7 as a drive source, Power transmission means 21 for transmitting the rotational force to the rotary shaft 4 is provided.

  Specifically, in the present embodiment, as shown in FIG. 1, the support means 1 is configured as a frame having a sleeve portion 1 a formed by standing upright two plate members made of PVC. Yes.

  The base 3 has a rectangular first substrate 3a and a second substrate 3b pasted on the surface side of the first substrate 3a so as to be opposed to the disk 9 with a slight gap. (Thereby, the surface becomes the upper surface of the base and the back surface becomes the lower surface), and the region where the second substrate 3b is attached is positioned above in the inclination direction, The support means 1 is fixedly disposed between the sleeve portions 1a.

  In the present embodiment, the first substrate 3a is made of PVC, and the second substrate 3b is made of PTFE (Teflon (registered trademark)). The reason why PTFE is used as the second substrate 3b is that the friction that occurs when the tablets, which are objects to be fed, are conveyed one by one to the dispensing outlet (the friction is preferably small for conveying the feeding) and the surface hygiene. This is a result of taking management circumstances into consideration. In addition, it is desirable that the inclination angle (elevation angle) of the base 3 is appropriately changed in accordance with the characteristics of the object to be fed out. However, in this embodiment in which the tablet is the object to be fed out, the inclination angle (elevation angle) is 30 degrees.

  Further, as shown in FIG. 7, the base 3 has a rotating shaft 4 to which the rotational force of the motor 7 is transmitted by the power transmission means 21 so that the tip end portion 4 a protrudes substantially at the center of the second substrate 3 b. It is arranged. The rotating shaft 4 is embedded in the back surface of the base 3, and is supported rotatably by a bearing 6 protected by a bearing holder 5 in the longitudinal center portion thereof.

  Further, on the surface side of the base 3, a rotating disk 8 fixed by inserting a shaft hole 8 a through the rotating shaft 4 is disposed integrally with the rotating shaft 4 so as to be rotatable. On the surface side of the rotating disk 8, the disk 9 has a shaft hole 9 a loosely inserted into the rotating shaft 4, and an engaging protrusion 8 b formed on the surface of the rotating disk 8 is used for positioning. 9 d of engagement holes are fitted, and the rotary disk 8 and the disk 9 are integrated and arrange | positioned in the state which can be rotated. Instead of the engaging protrusion 8b and the engaging hole 9d, magnets that attract each other may be disposed. In this way, by adopting a configuration in which the disk 9 is attached to and detached from the turntable 8, the disk 9 replacement work and maintenance inspection work can be simplified.

  Here, as shown in FIG. 9, the disc 9 has a plurality of discs (15 in this embodiment) that can store tablets to be fed one by one on a circle in the vicinity of the outer peripheral edge centered on the shaft hole 9 a. Storage holes 9b are arranged.

  The storage hole 9b formed in the disk 9 of the present embodiment is formed as a rectangular hole (long hole) that is chamfered at the four corners in plan view and is long in the rotation direction, and the rotation of the long hole is further performed. A guide surface 9c for guiding the tablet into each elongated hole is formed in the end portion located on the direction side (the end portion in the clockwise direction in FIG. 9) by scraping the disk surface in a mortar shape. The disk 9 is prepared in advance with a plurality of patterns in which storage holes 9b having different shapes, sizes, etc. are formed in accordance with the lump that is provided for feeding, and the discs 9 are used by appropriately replacing them. By doing so, it becomes possible to prevent clogging of the lump.

  In addition, the base 3 is provided with a feeding mechanism for feeding the tablets one by one to the back side of the base 3 in correspondence with the uppermost position (position in the 0 o'clock direction) in the rotation trajectory of the storage hole 9b of the disk 9 disposed. An outlet 11 is formed. In the present embodiment, the delivery port 11 is formed as a rectangular cutout portion at the central portion in the width direction on the upper end side of the base 3 disposed at an inclination. As shown in FIG. 2, a shooter 12 constituting a path for feeding a tablet to the back side of the base 3 is detachably attached using a knock pin 13 that also serves as a positioning pin.

  The shooter 12 is formed in a bowl-like shape having a bottom wall 12a for sliding the tablet to be fed out, and side walls 12b that are erected on both sides of the bottom wall 12a so as to be separated from the longitudinal dimension of the storage hole 9b. The bottom wall 12a of the shooter 12, which is attached with the one end side arranged on the upstream side in the tablet feeding path facing the inside of the feeding port 11, has an upper surface thereof and a disc 9 positioned at the feeding port 11. It arrange | positions so that the rotation center direction edge of the storage hole 9b may be in equality. Moreover, in this embodiment, each side wall 12b is formed so that the inner surface may spread in the direction which mutually separates in the said one end side. Thus, by devising the shape at the one end side of the shooter 12, it is possible to facilitate the sweeping of the tablet at the delivery port 11, and thus it is possible to prevent the delivery port 11 from being clogged with tablets. Further, by providing the shooter 12, the tablets can be conveyed and supplied to a desired downstream path. For example, the anti-base side tip of the shooter 12 may be positioned above a belt conveyor that constitutes the tablet packing conveyance path, or may be positioned above the opened medicine bottle. it can.

  In this embodiment, as shown in FIG. 8, the shooter 12 is placed on the bottom wall 12a to substantially raise the position of the upper surface of the bottom wall 12a of the shooter 12 so that the shooter 12 repeats with the upper surface. A spacer 12c is provided for adjustment so that the end of the storage hole 9b of the disk 9 located at the outlet 11 is in the same direction as the rotation center. By disposing the spacer 12c and allowing the fed tablet to be fed out by sliding the upper surface of the spacer 12c as it is, the tablet fed from the feeding port 11 to the shooter 12 hits the bottom wall 12a of the shooter 12 and jumps. Problems such as jumping out of the shooter 12 and not being counted by the counter 14 described later can be prevented.

  Further, a counter 14 capable of counting the tablets fed out of the shooter 12 is provided. In the present embodiment, the counter 14 is formed by a pair of optical sensors composed of a light emitting element 14a and a light receiving element 14b arranged outside the both side walls 12b, 12b of the shooter 12, and is emitted from the light emitting element 14a. The light is passed through the small holes 12d formed in the side walls 12b, 12b of the shooter 12 and received by the light receiving element 14b, and the number of times that the drawn tablet blocks the optical path is counted by a control unit (not shown). It is configured to be able to count the number of tablets. In the present embodiment, two sets of a pair of optical sensors are arranged, and counting is performed by each set of optical sensors, thereby increasing the counting accuracy.

  Here, the motor returns to the base 3 again, and in the center in the width direction of the first substrate 3a in the region where the second substrate 3b is not attached, which is the lower side in the inclination direction, as shown in FIG. An opening 3c for disposing 7 is formed. An aluminum motor plate 7b is disposed on the back surface of the base 3 so as to cover the opening 3c. The motor 7 projects the motor shaft 7a from the motor plate 7b to the back surface side. The motor plate 7b is disposed. The motor 7 can be turned ON / OFF and the rotational speed of the motor 7 can be adjusted by operating an electrically connected control panel (not shown).

  A power transmission means 21 is disposed between the rotary shaft 4 and the motor shaft 7 a of the motor 7. The power transmission means 21 is a drive-side pulley 22 disposed on the motor shaft 7a, a driven-side pulley 23 disposed on the rotating shaft 4, and an elastic force for transmitting the rotational force of the drive-side pulley 22 to the driven-side pulley 23. An annular belt 24 is used.

  The drive pulley 22 has a fixed pulley 22a fixedly disposed at a position on the motor 7 side with the motor shaft 7a of the motor 7 inserted through the shaft hole, and a state where the motor shaft 7a is inserted through the shaft hole. The movable pulley 22b is arranged along the motor shaft 7a so as to be slidable in the direction away from the fixed pulley 22a outside the fixed pulley 22a. The fixed pulley 22a and the movable pulley 22b are integrated by being attracted by the magnetic force of a plurality of magnets 10 arranged at equal intervals in the circumferential direction around the motor shaft 7a on the opposing surfaces. And can be rotated. In this embodiment, as shown in FIG. 8, a washer 22c is interposed between the fixed pulley 22a and the driven pulley 22b, and the fixed pulley 22a and the movable pulley 22b have a thickness of the washer 22c. By changing the gap and adjusting the gap between the opposing magnets 10, the attractive force by the magnets 10 can be adjusted.

  The elastic annular belt 24 is a round belt made of polyurethane rubber, and is stretched between the movable pulley 22b of the driving pulley 22 and the driven pulley 23, and the rotational force of the driving pulley 22 is applied to the driven pulley 23. Configured to communicate.

  Further, in the present embodiment, the tablets to be fed are accumulated on the lower side (6 o'clock direction position) in the rotation path of the storage hole 9b of the disk 9 disposed on the inclined base 3, and the lower order The hopper 25 that functions as a lump containing area X on the side forms a slight gap (1 mm in the actual machine) between the surface of the disk 9 disposed on the base 3 so that the tablet does not fit. The support means 1 is arranged so as not to hinder the rotation of the disk 9.

  Specifically, the hopper 25 is formed by a peripheral wall portion 25a and a flange portion 25b. The peripheral wall portion 25a has an inner peripheral surface that is larger in diameter than the rotation track of the storage hole 9b formed in the disk 9 and is on a concentric circle centered on the rotation shaft 4 and at least an inclined base. 3 is formed in a semi-cylindrical shape extending in a direction orthogonal to the surface of the disk 9 in a semicircular region on the lower side in the rotation trajectory of the storage hole 9b of the disk 9 disposed in FIG. At the same time, a flat plate portion that covers up to the uppermost position of the disk 9 is continuously provided on the semi-cylindrical upper portion. A flange portion 25b is connected to the upper end portion of the peripheral wall portion 25a, and the flange portion 25b is fixedly arranged on the upper surface of the sleeve portion 1a of the support means 1 so that the peripheral wall portion 25a rotates with the disk 9 The tablet is arranged so as not to be buffered and to be able to guide the tablet to the storage hole 9b. More specifically, a positioning engaging projection 1b may be formed on the upper surface of the sleeve portion 1a of the support means 1, and a fixing magnet 10 may be embedded. Further, the hook 25b of the hopper 25 is also engaged with the engaging protrusion 1b at the time of disposition to form an engagement hole 25c that serves as a reference for alignment, and is embedded in the sleeve 1a at the time of disposition. The magnet 10 that is attracted to the magnet 10 may be embedded. In this way, the sleeve portion 1a of the support means 1 and the flange portion 25b of the hopper 25 are formed, and the inner surface of the peripheral wall portion 25a rotates by mounting the hopper 25 while positioning it at a predetermined position of the support means 1. Together with forming an appropriate gap with the surface of the disk 9, it is possible to form a lump containing area X for collecting tablets to be fed out.

  In addition, you may form the stirring means 26 which can stir the tablet provided for feeding | feeding out on the surface of the disk 9. FIG. The stirring means may be, for example, a groove or a ridge formed radially or spirally in the circumferential direction from the center of rotation of the disk 9, or a protrusion provided on the surface thereof. FIG. 9 shows an example in which three protrusions are formed at equal intervals on the rotation path of the storage hole 9 of the disk 9. When the stirring means is formed in this way, the disk 9 rotates to stir the tablets accumulated in the lump containing area X, while avoiding a state where the tablets are fixed due to moisture or the like. One tablet can be stored in the storage hole 9b of the disk 9 one by one.

  Next, the operation of the feeder of this embodiment will be described.

  The feeder configured as described above normally rotates the motor 7 in a state where a plurality of tablets are accommodated in the lump accommodating area X. Then, the rotational force of the motor 7 is driven from the driving pulley 22 including the fixed pulley 22a and the movable pulley 22b that rotates integrally by being attracted to the fixed pulley 22a by the magnetic force, and the driven pulley through the elastic annular belt 24. The disk 9, which is transmitted to the disk 23 and engages the shaft hole 9 a with the rotating shaft 4 fixed to the driven pulley 23, is rotated in the clockwise direction in the front view of the disk 9. By rotating the disk 9 in this manner, the tablet is stored in the storage hole 9b of the disk 9 in the lump containing area X formed on the upstream side of the position where the delivery port 11 is formed in the rotation direction, and the tablet is fed as it is. The tablets can be fed out by being transported to the outlet 11 and sliding the shooter 12 from the outlet 11.

  On the other hand, in the case of an emergency where the tablet is clogged between the storage hole 9b and the delivery port 11, the rotation of the disk 9 is impeded so that the driven shaft disposed on the rotating shaft 4 engaged with the shaft hole 9a of the disk 9 is obstructed. The rotation of the side pulley 23 stops. As a result, the rotation of the movable pulley 22b of the driving pulley 22 on which the elastic annular belt 24 is stretched and wound with the driven pulley 23 is delayed, and the elastic annular belt 24 stretched on both pulleys 22 and 23 is retained. Is retracted on one side divided by an imaginary line connecting the rotation centers of the pulleys 23 and 23 and stretched on the other side, thereby accumulating a restoring elasticity in the direction in which the driven pulley 23 is rotated in the reverse direction.

  After that, when the stationary pulley 22a is still rotated by the rotational force of the motor 7 and the restoring elasticity of the elastic annular belt 24 becomes larger than the attractive force of the magnet 10, the magnet 10 disposed on the movable pulley 22b is The attracted state with the magnet 10 disposed on the fixed pulley 22a that has been attracted to each other is once released, and then again attracted with the magnet 10 disposed on the upstream side in the rotation direction of the fixed pulley 22a ( At this time, the movable pulley 22b slides slightly away along the motor shaft 7a). At this time, the movable pulley 22b is instantaneously rotated in the direction opposite to the normal time by the restoring elasticity accumulated in the elastic annular belt 24.

  For example, when the four magnets 10 are embedded 90 degrees in the circumferential direction around the motor shaft 7a on the opposing surfaces of the fixed pulley 22a and the movable pulley 22b, the rotation is caused by clogging of the tablets. The movable pulley 22b that has stagnated is rotated together with the fixed pulley 22a while increasing the restoring elasticity of the elastic annular belt 24 by the magnetic force between the magnet 10 on the fixed pulley 22a side, and the elastic annular belt 24 by the attractive force of the magnet 10. When the restoring elasticity of the magnet 10 is increased, the attractive force of the magnet 10 is released, and the movable pulley 22b is reversely rotated by the restoring elasticity, and is attracted to the magnet 10 located on the downstream side in the rotational direction of the fixed pulley 22a, and then forwardly rotated. Will be.

  At this time, when the movable pulley 22b is rotated in the opposite direction to the normal time by the restoring elasticity of the elastic annular belt 24, the disk 9 rotates in the reverse direction, and the clogged storage hole 9b and the outlet 11 are clogged. Since the gap is widened instantaneously, the jammed tablet can be released into the shooter 12 and dropped.

  In the feeder of the present embodiment, this swinging rotation is transmitted to the driven pulley 23 via the elastic annular belt 24, and the disk 9 is swung in the counter-rotating direction, so that the space between the storage hole 9b and the outlet 11 is set. The clogging of the tablet can be eliminated, and the driving force of the motor 7 is transmitted from the side of the driving pulley 22 composed of the fixed pulley 22a and the movable pulley 22b again adsorbed to the driven pulley 23 via the elastic annular belt 24. Thus, it is possible to continue to perform normal feeding (“self-recovery function” for continuing to feed out the lump).

  In order to operate the power transmission means 21 of the present embodiment and effectively use the feeder's self-return function, the number of magnets 10 (arrangement interval), the magnetic force of the magnets 10, the elastic force of the elastic annular belt 24. The tension, tension (stretching condition), rotational speed of the motor, and the like are adjusted in consideration of the size of the mass to be fed, the interval between the storage holes 9b, and the like.

  As described above, according to the feeder of the present embodiment, not only the occurrence of clogging of the lump is suppressed, but when the lump is clogged, the clogging is eliminated using its own mechanism, and the lump is further removed. Therefore, it is possible to improve the workability by avoiding problems such as breakage of the lump and burning of the motor.

  In the present invention, the above-described embodiment can be variously modified as necessary.

  For example, the object of the feeder is not limited to a medicine such as a tablet as in the present embodiment, and may be a small lump such as a screw or a button.

  Further, the number of magnets 10 embedded in the opposing surfaces of the fixed pulley 22a and the movable pulley 22b is not limited to four at 90 degrees as in the above example, and the number of magnets 10 is determined. Shall be able to.

  Further, the configuration for providing the hopper 25 in a state of maintaining an appropriate positional relationship with the disk 9 is not limited to the configuration of the flange portion 25b as described above. In short, the hopper 25 has a lump containing area. It is only necessary to have a peripheral wall portion 25a that constitutes X and to be configured so that a lump can be accumulated in the hopper 25. The mounting target is not limited to the support means 1 as in the present embodiment, and for example, a base 3 may be directly mounted.

  The counter 14 is not limited to the counter 14 having a known optical system sensor as in this embodiment, and may be a contact switch type counter, for example. Even in such a case, the feeder according to the present embodiment can reliably feed out the lump one by one, so that the occurrence rate of counting errors can be kept extremely low.

  Further, the side wall 12b of the shooter 12 expands at least at the one end side so that at least one side wall 12b located on the upstream side in the rotational direction of the disk 9 is separated from the other side wall 12b. If it forms, it will be possible to promote the sweeping of the tablet at the delivery outlet 11, and it will be possible to prevent the delivery outlet 11 from being clogged with tablets.

  Here, another shape of the shooter 12 is shown in FIG. In consideration of the fact that the tablet fed out from the rotating disk 9 is drawn out in a parabolic arc, the shooter 12 forms a feeding path bent in an arc shape by the both side walls 12b. On the bottom wall 12a of the feed path, a step portion 12e that positions the upstream side in the rotational direction of the disk 9 in the width direction is low and the downstream side is set high constitutes the counter 14 from the upstream side disposed in the feed port 11. It is formed to the downstream side from the position where the optical sensor to be opposed is disposed, and the tablet fed out from the disk 9 rotating at an appropriate rotational speed is applied to the stepped portion 12e and is directly along the stepped portion 12e. And can be guided to the downstream side. More specifically, it is desirable to adjust the rotational speed of the disk 9 so that the tablet to be delivered falls in the delivery path along the step portion 12e. The shooter 12 shown in FIG. 10 uses so-called line sensors as a pair of optical sensors of the counter 14, and the light emitted from the light emitting element 14 a is formed on the side walls 12 b and 12 b of the shooter 12. The light receiving element 14b passes through the slit 12f, detects a decrease in the amount of received light caused by the drawn tablet blocking its optical path, and counts this number of times to draw out the drawn tablet. It is configured to count. In FIG. 10 as well, two pairs of optical sensors are arranged, and counting is performed by each set of optical sensors, thereby increasing the counting accuracy.

DESCRIPTION OF SYMBOLS 1 Support means 1a Sleeve part 1b Engagement protrusion 3 Base 3a 1st board | substrate 3b 2nd board | substrate 4 Rotating shaft 4a Tip part 4b Base end part 5 Bearing holder 6 Bearing 7 Motor 7a Motor shaft 7b Motor plate 8 Rotating disc 8a Shaft hole 8b Engaging protrusion 9 Disc 9a Shaft hole 9b Storage hole 9c Guide surface 9d Engaging hole 10 Magnet 11 Feeding outlet 12 Shuter 12a Bottom wall 12b Side wall 12c Spacer 12d Small hole 12e Stepped part 12f Slit 13 Knock pin 14 Counter 14a Light emitting element 14a Light receiving element 21 Power transmission means 22 Driving pulley 22a Fixed pulley 22b Movable pulley 22c Washer 23 Driven pulley 24 Elastic annular belt 25 Hopper 25a Peripheral wall portion 25b Hook portion 25c Engagement hole 26 Stirring means X Mass object storage area

Claims (8)

A disk having an array of a plurality of storage holes capable of storing a lump object to be fed one by one on a circle centering on the shaft hole is projected on the surface of the base fixedly supported by the support means. The shaft hole is engaged with the rotating shaft disposed in a freely rotating manner, and a feeding outlet is formed in the base for feeding the lump one by one to the back side. The disk is rotated by transmitting the rotational force of a motor as a source through power transmission means, and the storage hole is formed in a lump containing area formed upstream from the formation position of the outlet in the rotation direction of the disk. It is a feeder configured to convey the lump that has been stored to the feed outlet and to feed the lump from the feed outlet,
The power transmission means includes a fixed pulley fixedly disposed in a state where the motor shaft of the motor is inserted into the shaft hole, and the fixed pulley along the motor shaft in a state where the motor shaft is inserted into the shaft hole. The movable pulleys slidably arranged in the separating direction are integrated by adsorbing them by the magnetic force of a plurality of magnets arranged at equal intervals in the circumferential direction around the respective axes on the opposing surfaces. The driving pulley, the driven pulley disposed on the rotating shaft, and the movable pulley of the driving pulley and the driven pulley. A feeder comprising an elastic annular belt that transmits to a driven pulley.   The feeder according to claim 1, wherein the feeder is replaceable with a disk in which a storage hole having a different shape is formed in accordance with a lump object to be fed out.   On the surface of the base, a rotating disk fixed by inserting the rotating shaft through the shaft hole is rotatably arranged, and the disk is inserted in the state where the rotating shaft is inserted into the shaft hole. The feeder according to claim 1 or 2, wherein the feeder is fixed so as to be rotatable integrally with the rotating disk.   The base is fixedly arranged on the support means so that the surface has an angle with respect to the horizontal, and the outlet is a rotation of the storage hole of the disc arranged on the inclined base. A detachable hopper that is formed corresponding to the upper side of the track and further functions as a lump containing area for collecting the lump to be fed out on the lower side of the rotation track of the storage hole of the disk The feeder according to any one of claims 1 to 3, wherein the feeder is provided.   The surface of the disk is formed with an agitating portion capable of agitating the lump that is guided to the lower side of the disk disposed on the tilted base and stored for feeding. The feeder according to any one of claims 1 to 4.   The shooter which comprises the path | route which draws a lump from the said delivery outlet to the back surface side of the said base is attached to the said base, The any one of Claim 1 thru | or 5 characterized by the above-mentioned. feeder.   The shooter is formed in a bowl shape having a bottom wall and side walls erected on both sides of the shooter. The upper end of the shooter faces the inside of the payout opening, and the disc storage hole is located at the bottom wall and the payout opening. In the direction in which the inner surface of one side wall located at the upstream side in the rotational direction of the disk is separated from the other side wall at the upper end side. The feeder according to claim 6, wherein the feeder is formed so as to expand to the center.   The feeder according to claim 6 or 7, further comprising a counter capable of counting a lump that is fed through the shooter.

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