JP2006272476A - Suction nozzle device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a small and lightweight suction nozzle device with high-speed operational response property in suction and release of an object to be sucked. <P>SOLUTION: The suction nozzle device is provided with a case body, which has a fluid supply port and a suction port outside, and a fluid path switching body inside the case body which intermittently opens/closes the flow of fluid in a fluid path for allowing the fluid supply port and the suction port to communicate with each other by the contact or the release of a valve body and a valve seat. The fluid path switching body is an electromagnetic solenoid type, in which a fixed body and a movable body are linearly arranged inside an exciting coil, and composed by forming the valve body at the tip, which is opposite to the fixed body, of the movable body operated by the conduction to the exciting coil. The fluid path and the fluid path switching body are integrally formed inside the case body. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a suction nozzle device used for suction conveyance of an object to be adsorbed.

  In the prior art, an adsorption nozzle is attached to the head portion of the adsorption conveyance device, and an ejector in which an adsorption hole of the adsorption nozzle is integrated with a switching device, a vacuum source, a switching device and a vacuum source by a pipe tube connected to the adsorption nozzle Is switched to a vacuum generator, etc., and switching of the suction and release of the article to the suction nozzle is performed by a switching device at a remote location.

The head portion of the adsorption / conveyance device is required to reduce the weight in order to operate at an ultra-high speed, and high speed is required for the operation and response of the adsorption / release of the article / object to be adsorbed. At the start and stop of these adsorption and release operations, an amount of air corresponding to the internal volume of the path length of the piping tube is exhausted, the article is adsorbed by the suction nozzle, and the same amount or more of air is supplied to the piping tube. This is an operation model in which articles are released from the suction nozzle later, and the path length of the piping tube between the suction nozzle and the vacuum source hinders speeding up of the operation and response. That is, it takes a long time to discharge the volume of air in the pipe tube during the adsorption and release operations, and it takes a long time to supply air to release the vacuum state in the pipe tube. The following documents describe a vacuum supply unit with a suction pad in which an adapter unit for attaching a suction pad is engaged with a manifold unit, and a vacuum supply valve portion and an electromagnetic valve are provided on the manifold unit.
Japanese Patent Laid-Open No. 5-69365

  Since the suction nozzle attached to the head part of the suction conveyance device and the switching device that drives the suction and release of the suction nozzle are arranged at separate positions, the operation and response of the suction and release of articles and objects to be adsorbed is slow. There is a problem. To provide a suction nozzle device that solves the problem of incorporating a switching device for switching between suction and release into a suction nozzle that is compact and lightweight for speeding up the operation of suctioning and releasing articles and objects. It is.

  A case body in which a fluid supply port and a suction port are formed outside, and the flow of fluid in a fluid path that conducts the fluid supply port and the suction port is intermittently caused by contact and release of the valve body and the valve seat. A fluid path switching body that opens and closes, and the fluid path switching body is an electromagnetic solenoid type in which a stationary body and a movable body are linearly arranged inside an excitation coil, and the movable body that is operated by energizing the excitation coil is fixed. This is a suction nozzle device in which the valve body is formed at the tip opposite to the body, and a fluid path and a fluid path switching body are integrally formed inside the case body, and an electromagnetic solenoid type that switches between the suction and release fluid paths The fluid path switching body is incorporated in the suction nozzle device, and the operation and response of the suction and / or release of the article and the object to be adsorbed are speeded up, so that a small and lightweight suction nozzle device can be provided.

  Further, a vacuum fluid path and electromagnetic solenoid type vacuum switching fluid path switching body, and a destruction fluid path and electromagnetic solenoid type destruction switching fluid path switching body are formed in the case body, respectively. The suction nozzle device is a suction nozzle device in which a fluid path is formed in the core part of the fixed body and the movable body of the fluid path switching body, and a suction nozzle device in which a cylinder by electromagnetic or pneumatic pressure is integrated with the case body. , And / or a suction nozzle device in which a suction pad is attached to the suction port, and an electromagnetic solenoid type fluid path switching body for switching a suction and release fluid path is incorporated in the suction nozzle device, and suction and / or release Thus, it is possible to provide a suction nozzle device that is faster in response and more compact and light in weight.

  Details of the suction nozzle device according to the present invention will be described below. The suction nozzle device according to the present invention is not limited to the following description, drawings, and the like, and does not particularly limit the size, shape, scale, arrangement, and the like in the drawings.

  A case body in which a fluid supply port and a suction port are formed outside, and the flow of fluid in a fluid path that conducts the fluid supply port and the suction port is intermittently caused by contact and release of the valve body and the valve seat. A fluid path switching body that opens and closes, and the fluid path switching body is an electromagnetic solenoid type in which a stationary body and a movable body are linearly arranged inside an excitation coil, and the movable body that is operated by energizing the excitation coil is fixed. The valve body is formed at the tip opposite to the body, the fluid path and the fluid path switching body are integrally formed inside the case body, and the fluid path switching body for vacuum switching is a vacuum fluid path and an electromagnetic solenoid type. In addition, a destruction fluid path and an electromagnetic solenoid type destruction switching fluid path switching body are respectively formed inside the case body, and a fluid path is formed in the core of the fixed body and the movable body of the fluid path switching body. Or pneumatically That the cylinder is integrated with the case body and / or a suction nozzle device comprising attaching the suction pad to the suction port.

  The case body 32 includes a case side body 3 and a lid case 4 and includes a fluid path switching body, a fluid path, a valve body, a valve seat, and the like. A fluid supply / supply port (vacuum pressure supply) is provided in the lid case 4. A valve seat that is formed with a port 5 and a burst pressure supply port 15) and is fixed to the case side body 3 at a position that coincides with the fluid path, and that contacts the valve body (vacuum valve body 13, breaker valve body 23). (Vacuum valve seat 26.28, destruction valve seat 27.29) are formed, and a suction nozzle 30 having a suction port 31 is formed outside to form an outer portion of the suction nozzle device. Although the shape, size, etc. of the case body 32 are not particularly limited, the material is a non-magnetic metal, ceramic, resin, etc., and the movable body (the movable body for vacuum 10 and the movable body for destruction 20) Those that can withstand sliding are preferred.

  The fluid path switching body intermittently opens and closes the fluid path (vacuum fluid path 11, breaking fluid path 21) in the case body 32 by an electrical signal (contact and release of the valve body and the valve seat). There are a fixed body, a magnetic body frame, an excitation coil, a coil bobbin, a spring, a movable body, a fluid shield body, a valve body attached to the tip of the movable body, and the like. The fluid path switching body is similar to the solenoid part of a general solenoid valve, and a spring and / or a buffer material is disposed between a fixed body and a movable body, and an excitation coil wound around a coil bobbin is disposed around the spring and / or shock absorber. Further, a magnetic body frame for magnetic flux is arranged around it, and the movable body is slid by energization / non-energization of the excitation coil.

  Although the number of fluid path switching bodies is not limited, it is preferable that two types, one for vacuum and one for breaking, coexist. For example, as shown in FIG. 1, the vacuum fluid path switching is performed by providing the vacuum fluid path 11 in the shaft core portion of the vacuum fixed body 6, the vacuum movable body 10, and the vacuum valve body 13 to be electrically connected to the vacuum pressure supply port 5. And a breaking fluid path switching body having a similar structure. Further, as shown in FIG. 3, the vacuum fluid path switching is performed by providing the vacuum fluid path 11 in the shaft core portion of the vacuum fixed body 6, the vacuum movable body 10, and the vacuum valve body 13 so as to be electrically connected to the vacuum pressure supply port 5. The body and the breaking fluid path switching body that is provided in the case side body 3 and is electrically connected to the breaking pressure supply port 15 without providing the breaking fluid path 21 in the core portion of the breaking movable body 20 can be exemplified. Moreover, the fluid path switching body which provided both the fluid path for vacuums and destruction for the case side body 3 other than the core part of a movable body and a fixed body can be illustrated.

  The movable body slides by energization / non-energization of the exciting coil, and the valve body fixed to the tip of the movable body contacts / non-contacts with the valve seat formed on the case side body 3 to open / close the fluid path. As a result, the fluid path (vacuum fluid path 11, breaking fluid path 21), mixed fluid path 25, and suction port 31 can be made conductive / non-conductive (open / closed), and a vacuum pressure or a breaking pressure can be applied to the suction port 31. Can be supplied. The suction pad 2 is attached to the suction nozzle 30 that forms the suction port 31 therein, and the object to be sucked can be sucked and released.

  The normal state of the fluid path by the fluid path switching body does not limit conduction or non-conduction. These can be determined by the electrical polarity to the spring or excitation coil. Preferably, the movable body is normally pushed out by a spring force (when no power is supplied), the valve body and the valve seat are brought into contact with each other, the fluid path is closed, and the movable body is attracted to the fixed body by the current supply, so that the valve body and the valve seat are not turned on. The fluid path is brought into conduction (normally closed) by contact, and more preferably, both the vacuum and the break are normally closed. It is a self-safety type.

  It is preferable that an electromagnetic or pneumatic cylinder is integrally formed on the lid case 4 side or the suction nozzle 30 side of the case body 32. For example, as shown in FIG. 2, the electromagnetic cylinder device 67 is configured at a position where the central axis coincides with the suction nozzle 30 on the suction nozzle 30 side of the case body 32. The configuration may be substantially the same as the fluid path switching body having a fluid path in the shaft portion of the fixed body and the movable body. Preferably, the permanent magnet 61 is inserted and arranged on the cylinder fixed body 66 side, and the cylinder movable body 60 is placed in the cylinder by the magnetic force of the permanent magnet 61, energization / non-energization of the cylinder excitation coil 68 and the cylinder spring 69. Adsorbed to and released from the fixed body 66. More preferably, the permanent magnet 61 is inserted and arranged on the cylinder fixing body 66 side, and when the magnetizing coil 68 is not energized, the magnetic force of the permanent magnet 61 is superior to the repulsive force of the cylinder spring 69 and fixed to the cylinder. The movable body for cylinder 60 is attracted to the body 66, and the sum of the repulsive force of the exciting coil for cylinder and the repulsive force of the spring for cylinder is superior to the magnetic force of the permanent magnet when energized, releasing the movable body for cylinder 60 from the fixed body for cylinder 66. It is the structure to do.

  In such a suction nozzle device, the fluid path switching body for vacuum and compression pressure is configured in the case body very close to the suction nozzle, or the fluid path switching body for both vacuum and compression pressure is provided inside the case body for the suction nozzle. Because it is configured very close, it speeds up the operation of adsorbing and releasing articles and objects to be adsorbed, and the response, and is small and lightweight.

Embodiments of the suction nozzle device according to the present invention will be described.

(Example 1) See FIG. 1 As an electromagnetic solenoid type switching body fixed bodies 6 and 16 and movable bodies 10 and 20, an iron material has an outer diameter of 8 mm, an inner diameter of 2 mm (holes for fluid paths 11 and 21), a spring 9 Counterbore φ4 mm for 19 and grooves for shield bodies 12 and 22 by O-rings were formed on the outer periphery of the movable body. Insulating conductive wires are wound around cylindrical coil bobbins 14 and 24 made of nylon resin to form exciting coils 8 and 18, and magnetic material frames 7 and 17 made of iron material divided so as to surround the exciting coils are arranged. A cushion member and a spring made of urethane rubber are arranged between the fixed body and the movable body, and rubber valve bodies 13 and 23 having holes communicating with the holes of the fluid path are fixed to the distal ends of the movable bodies 10 and 20. Thus, an electromagnetic solenoid in which the movable bodies 10 and 20 are slid by being inserted into the coil bobbin and energized to the excitation coil. Since the configuration of the electromagnetic solenoid is similar to that of a general electromagnetic valve, detailed description thereof is omitted.

  The case side body 3 is formed of a brass material symmetrically with a center and is formed with holes for insertion of the fixed body, the movable body, the exciting coil, the magnetic body frame, and the lid case 4 for vacuum and destruction. Forms a hole that slides together with the shield bodies 12 and 22 while preventing fluid leakage, and forms a hole for the mixed fluid path 25, which is a part of the mixed fluid path 25 and is in contact with the valve bodies 13 and 23. Flat valve seats 26 and 27 are formed in a portion sufficiently wider than the inner diameter of the valve body in the portion, and the suction nozzle 30 and the suction are placed on the case side body 3 on the opposite side of the case side body 3 from the attachment of the lid case 4. A hole of a suction port 31 communicating with the mixed fluid path 25 was formed in the nozzle 30.

  The electromagnetic solenoid was placed and inserted in each of the case side body 3 for vacuum and destruction and sealed and fixed by the lid case 4. The fixed bodies 6 and 16, the magnetic body frames 7 and 17, the coil bobbins 14 and 24, the exciting coils 8 and 18 are fixedly fixed to the case side body 3, and the movable bodies 10 and 20 pressed by the springs 9 and 19 are valve bodies. 13 and 23 are pressed against the valve seats 26 and 27 to separate (shut off) the fluid passages 11 and 21 and the mixed fluid passage 25 to prevent the flow of fluid.

  When the electromagnetic solenoid is energized (for the vacuum on the left side in FIG. 1), the vacuum movable body 10 is slid and drawn toward the vacuum fixed body 6 by the magnet force of the vacuum spring 9 or more, and the vacuum valve body 13 and the vacuum are pulled. The vacuum pressure is supplied to the vacuum pressure supply port 5 by creating a gap between the valve seat 26 and releasing the flow of the fluid in the vacuum fluid path 11 and the mixed fluid path 25, and the vacuum fluid path 11, the mixed fluid path 25, It can be led to the suction port 31. The object to be adsorbed can be adsorbed to the adsorption pad 2 attached to the suction nozzle 30 by the introduced vacuum pressure.

  The energization to the vacuum is stopped (the vacuum path is blocked / interrupted), and the energizing electromagnetic solenoid is energized to reduce the compression pressure of the fluid supplied to the destructive pressure supply port 15. The mixed fluid path 25 can be led to the suction port. The object to be adsorbed that is adsorbed to the adsorption pad 2 is adsorbed and released by the introduced compression pressure.

  When the power is off, at the time of power failure, out of control, etc., each movable body is pushed by the restoring force of each spring while the solenoid solenoid for vacuum and the solenoid for destruction are not energized. The fluid path is closed by being pressed against the valve seat. Even if a power failure occurs during vacuum suction, the vacuum electromagnetic solenoid closes the vacuum fluid path and keeps the suction pad vacuum for a while to hold the suction state of the object to be sucked.

  The suction nozzle device manufactured in this manner is a self-safety type due to the selection of the operation of the electromagnetic solenoid, because the switching of the fluid path is performed in the vicinity of the suction port, so that the response speed of suction and release is fast and small. .

(Example 2) See FIGS. 2 and 4. The case body 32 is manufactured in substantially the same manner as in Example 1, and the cylinder device 67 is formed on the suction nozzle 30 side. The cylinder device 67 includes a permanent magnet 61, a cylinder fixed body 66, a cylinder movable body 60, a cylinder excitation coil 68, a cylinder coil bobbin, a cylinder spring 69, and a cylinder shield body 62 inside a cylinder case body 63. In addition, a cylinder magnetic body frame, a cushion material between the fixed body and the movable body, and the like are arranged and incorporated.

  When the cylinder exciting coil 68 is not energized, the cylinder movable body 60 is attracted to the cylinder fixed body 66 magnetized by the permanent magnet 61, and the cylinder movable body 60 is attracted to the suction nozzle 30 side. When the cylinder exciting coil 68 is energized, a repulsive force against the permanent magnet 61 is generated in the cylinder movable body 60 by the magnetic force generated in the cylinder exciting coil 68, and synergistically with the force of the cylinder spring 69. The movable body 60 is moved away from the cylinder fixed body 66. By energization / non-energization, the cylinder case body 63 and the cylinder shield body 62 are shielded, and the cylinder movable body 60 can slide to perform the piston motion.

  The suction pad 2 is attached to the cylinder suction port 64 at the tip of the cylinder movable body 60, and the fluid paths for vacuum and destruction can be switched and the cylinder can be operated in substantially the same manner as in the first embodiment. In the vacuum suction state, the vacuum suction path 65 (shown by a broken line) in FIG. 2 is turned on to remove the fluid inside the suction pad to the vacuum pressure supply port 5.

  The suction nozzle device manufactured in this way is a device in which vacuum suction, vacuum break, and cylinder are integrated, and the speed of suction and release of an object to be sucked is fast, small, and multifunctional.

(Example 3) See FIG. 3 Although it is the structure substantially the same as Example 1, it is an example from which a fluid path | route, a valve body, a valve seat, a mixed fluid path | route, etc. differ. In the electromagnetic solenoid on the left in the figure, the fluid path 11 branches left and right inside the movable body 10, and a bowl-shaped valve body 13 is provided at the tip of the movable body 10, and the excitation coil 8 is connected to the valve seat 28. Switching between the fluid path 11 and the suction port 31 is performed by energization / non-energization. In addition, the electromagnetic solenoid on the right side in the drawing performs switching between opening and closing of the fluid path 21 and the suction port 31 provided in the case side body 3 other than the electromagnetic solenoid portion by energizing or de-energizing the exciting coil 18 (valve element). 23 and release of the valve seat 29, contact). The suction pad can be directly attached to the suction nozzle 30.

  The suction nozzle device manufactured in this way can perform vacuum suction and release (vacuum break) of an object to be sucked at high speed and is small in size.

  In the suction nozzle device according to the present invention, the fluid path switching body for vacuum and compression pressure is configured in the case body and very close to the suction nozzle, or the fluid path switching body for both vacuum and compression pressure is disposed inside the case body. Since it is constructed very close to the suction nozzle, the suction release path is shortened, and the speed of the action of adsorbing and releasing articles and objects to be adsorbed and releasing, and the response speed are reduced, and it is small and lightweight.

It is a figure which shows one embodiment of the suction nozzle apparatus which concerns on this invention. It is a figure which shows one embodiment which attached the cylinder apparatus to FIG. 1 of the suction nozzle apparatus which concerns on this invention. It is a figure which shows one embodiment of the suction nozzle apparatus which concerns on this invention. FIG. 3 is a diagram showing an embodiment of the suction nozzle device according to the present invention from FIG. 2 from the cylinder side.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Adsorption nozzle apparatus 2 Adsorption pad 3 Case side body 4 Lid case 5, 15 Fluid supply port (vacuum pressure supply port, burst pressure supply port)
6, 16 Fixed body (fixed body for vacuum, fixed body for destruction)
7, 17 Magnetic frame (vacuum magnetic frame, breaking magnetic frame)
8, 18 Excitation coil (excitation coil for vacuum, excitation coil for destruction)
9, 19 Spring (Vacuum spring, Destruction spring)
10, 20 Movable body (movable body for vacuum, movable body for destruction)
11, 21 Fluid path (vacuum fluid path, breaking fluid path)
12, 22 Shield body (vacuum shield body, destruction shield body)
13, 23 Valve body (Valve valve body, valve body for destruction)
14, 24 Coil bobbin (coil bobbin for vacuum coil bobbin destruction)
25 Mixed fluid path 26, 28, 27, 29 Valve seat (vacuum valve seat, break valve seat)
30 Suction nozzle 31 Suction port 32 Case body 60 Cylinder movable body 61 Permanent magnet 62 Cylinder shield body 63 Cylinder case body 64 Cylinder suction port 65 Vacuum suction path 66 Cylinder fixing body 67 Cylinder device 68 Cylinder excitation coil 69 Cylinder spring

Claims (5)

  A case body in which a fluid supply port and a suction port are formed outside, and the flow of fluid in a fluid path that conducts the fluid supply port and the suction port is intermittently caused by contact and release of the valve body and the valve seat. A fluid path switching body that opens and closes, and the fluid path switching body is an electromagnetic solenoid type in which a stationary body and a movable body are linearly arranged inside an excitation coil, and the movable body that is operated by energizing the excitation coil is fixed. A suction nozzle device, wherein the valve body is formed at the tip opposite to the body, and the fluid path and the fluid path switching body are integrally formed inside the case body.   The vacuum fluid path and electromagnetic solenoid type vacuum switching fluid path switching body, and the destruction fluid path and electromagnetic solenoid type destruction switching fluid path switching body are formed and arranged respectively inside the case body. The suction nozzle device according to claim 1.   3. The suction nozzle device according to claim 1, wherein a fluid path is formed in a core part of the fixed body and the movable body of the fluid path switching body.   The suction nozzle device according to any one of claims 1 to 3, wherein an electromagnetic or pneumatic cylinder is integrated with the case body. The suction nozzle device according to claim 1, wherein a suction pad is attached to the suction port.

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