JPH0627757U - Loader unit - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] Regarding a tray replacement device in which parts are arranged in an array, especially a tray with various parts used for automatic parts loading machines can be easily operated with a single drive source. It is an object of the present invention to provide a loader unit that can be moved to. [Structure] A tray 22 in which components and the like are arranged, first tray moving means 14 and 15 for moving at least one of the trays 22 to a first predetermined position, and the tray 22 is at the first predetermined position. Second tray moving means 25 for moving each tray 22 to a second predetermined position,
26 is a loader unit, and the second tray moving means 25, 26 are driving force generating means for moving each tray 22 from the first predetermined position to the second predetermined position, and The driving force from the driving force generating means is used as the driving force when the tray 22 is moved.
The driving force transmitting means 13 is provided for applying the moving force to the moving means.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a tray exchanging device (loader / unloader) in which parts and the like are aligned, and more particularly to a tray loader unit in which various parts used in an automatic loading machine for parts are arranged.

[0002]

[Prior art]

 FIG. 5 is a simple explanatory view of a loader unit used for an automatic loading machine for parts and the like. In FIG. 5, various parts 21 such as electronic parts (transformer etc.) and mechanical parts (gear etc.) are arranged at predetermined positions in a tray (dish) 22 for automatic loading. In addition, the trays 22 are stacked in several stages and stored in the rack 23, and in the present example, the trays 22 are moved in the vertical direction of the arrow 27 in order to replace the used tray 22 with a new tray 22 by automatic loading. . The motor 24 and the belt 25, the roller 26, and the like for transmitting the rotational force shown on the left side of FIG. 5 are provided on the tray 22 for actually automatically loading the above-mentioned components 21 by a work robot or the like (not shown). One of the trays 22 in the rack 23 is extracted (in the direction of arrow 28), and it is placed at a predetermined working position.

FIG. 6 schematically shows an example of a loader mechanism in a conventional loader unit. In FIG. 6, when the guide rail 34 at the bottom of the unused tray 22 is located just above the belt 25, the unused tray 22 stops moving in the rack 23 (direction of arrow 27). Next, using the air cylinders 30 to 32, which are the other drive sources of the tray 22, the tray 22 is pulled until it rides on the upper surface of the belt 25 (the position of the arrow 35 shown by the dotted line). In this example, the cylinder shaft 31 extending from the air cylinder body 30 and the engaging protrusion 32 at the tip thereof rotate at a predetermined position (the engaging protrusion 32 is a vertical arrow from the front-back direction in the figure). (Turning in the direction of 37) engages with the convex portion 33 in the guide rail 34 provided on the bottom surface of the tray 22, and then the tray 22 is pulled in the direction of arrow 38 in the figure. After that, the tray 22 is moved on the belt 25 to a predetermined working position (point of the arrow 36 in the figure) by the motor 24 described above.

[0004]

[Problems to be solved by the device]

 However, in the past, in order to move the tray 22 in the rack 23 on the belt 25 as described above, another drive source (air cylinders 30 to 32) was required in addition to the motor 24. Further, in this method, the rotating mechanism at the predetermined position of the engaging projection 32 described above is required, which complicates the apparatus, and when the air cylinders 30 to 32 are used, the tray 22 and its arrangement parts 21 and the like are removed. It was necessary to adjust the pulling force of the cylinder and its speed depending on the weight. Furthermore, when the height of the tray 22 in the rack 23 does not match the upper surface of the belt 25 and a step is formed, there is a problem that the tray 22 may not be pulled completely by the cylinder.

In view of the above problems, an object of the present invention is to apply the drive source of the motor 24 to a drive source such as the other cylinder to unify the drive source. The loader unit is simplified and economical, and the driving force from the motor 24 side is surely given to the tray 22 on the rack 23 side by a simple synchronization transmission mechanism, so that the control complexity such as the adjustment described above is increased. It is to provide a loader unit that eliminates the above.

[0006]

[Means for Solving the Problems]

 According to the present invention, a tray in which components and the like are arranged, a first tray moving means for moving at least one of the trays to a first predetermined position, and each tray at the first predetermined position. A loader unit comprising second tray moving means for moving a tray to a second predetermined position, wherein the second tray moving means is configured to move each tray from the first predetermined position to the second predetermined position. A driving force generating means for moving the tray to a predetermined position, and a driving force transmitting means for applying the driving force from the driving force generating means to the first moving means as a driving force for moving the tray. A loader unit is provided.

[0007]

[Action]

 The first tray moving means sequentially transfers, for example, the trays stacked in several stages to the first predetermined position which is a moving position to the second tray moving means. Next, each of the trays at the first predetermined position is moved to the second predetermined position at which a work such as automatic loading is performed by the second tray moving means, and at that time, the second tray is moved. The driving force of the driving force generating means in the tray moving means is given to the first tray moving means as the driving force for moving the tray to the second predetermined position via the driving force transmitting means.

[0008]

【Example】

 FIG. 1 is a plan view schematically showing an embodiment of a loader unit according to the present invention. 2 is an explanatory view for explaining the operation according to the present invention of FIG. The same components as those in FIGS. 5 and 6 described above are designated by the same reference numerals. In the embodiment of FIG. 1, the drive source of the tray 22 composed of the air cylinder described above is removed, and instead of this, a gear box 11 composed of a combination of gears and cams is attached to the tip of the shaft of the motor 24. In addition, each tray 22 in the rack (not shown) is placed on a tray base composed of rollers 15 and belts 14. It should be noted that this tray base is for arranging a plurality of trays 22 respectively and transferring them in the rack, and there is no drive source like the motor side in each tray base. Further, according to the present invention, idling gear mechanisms 13 and 16 for transmitting the driving force of the motor 24 to the roller 15 of the tray base are added.

FIG. 2 illustrates in detail the operation of the loader unit according to the present invention of FIG. In FIG. 2A, the tray 22 is arranged at a predetermined position for moving to the motor side, but the movement has not yet been started. In this state, the motor 24 is stopped, so that the gear mox 11 and the idling gear mechanism 13, 16 which is operated by the main shaft 12 thereof are also stopped.

Next, as shown in FIG. 2B, when the motor 24 starts rotating to start moving the tray 22, the rotation causes the main shaft 12 to be pushed out of the gear box 11 to cause the idling gear mechanism to operate. The idle gear 13 (which rotates together with the roller 26) and the gear 16 mounted on the shaft of the roller 15 are engaged with each other, whereby the belt 14 of the tray base starts to move. Therefore, the tray 22 starts moving to the motor side at a speed synchronized with the motor side. In this case, the driving source is only one of the motors 24, and the moving speeds of the two belts 25 and 14 are the same or synchronized with each other, so that there is no need for the conventional adjustment. Further, both belts 25 and 14 can move the tray with a uniform and strong force, so that the tray 22 can be easily moved even with a slight step or the like.

3 and 4 show another embodiment of the loader unit according to the present invention. The difference from FIGS. 1 and 2 is that the air cylinder shown in FIG. 6 of the conventional example is used as it is. However, this air cylinder is used only in place of the gear box 11 of FIG. 1, and other points are exactly the same as the cases of FIGS. 1 and 2 described above. Therefore, the drive of the tray base and the movement itself of the tray 22 on the tray base are performed by the motor 24. The advantage of this example is that the conventional mechanism can be used almost as it is.

[0012]

[Effect of device]

 As described above, according to the present invention, the tray drive source can be easily unified by the motor, and the loader unit can be simplified and made economical. Further, there is an advantage that complicated adjustments and controls for moving the trays are not necessary, and product manufacturing costs and on-site work costs can be reduced. Further, the loader unit according to the present invention can be easily implemented by a simple modification of the conventional loader unit.

[Brief description of drawings]

FIG. 1 is a plan view schematically showing an embodiment of a loader unit according to the present invention.

FIG. 2 is an operation explanatory view of the loader unit of FIG.

FIG. 3 is a plan view schematically showing another embodiment of the loader unit according to the present invention.

FIG. 4 is an operation explanatory view of the loader unit of FIG.

FIG. 5 is a simple explanatory diagram of a loader unit configuration.

FIG. 6 is a diagram schematically showing an example of a conventional loader mechanism.

[Explanation of symbols]

 11 ... Gear box 13, 16 ... Idling gear mechanism 14, 25 ... Belt 15, 26 ... Roller 21 ... Parts 22 ... Tray 23 ... Rack 24 ... Motor 30-32 ... Air cylinder

Claims (2)

[Scope of utility model registration request] 1. A tray in which parts and the like are arranged in an array, a first tray moving means for moving at least one of the trays to a first predetermined position, and each tray at the first predetermined position. A loader unit comprising second tray moving means for moving the tray to the second predetermined position, wherein the second tray moving means moves each tray from the first predetermined position to the second predetermined position. A driving force generating means for moving the tray to the first moving means, and a driving force transmitting means for applying the driving force from the driving force generating means to the first moving means as a driving force for moving the tray. Loader unit characterized by. 2. The first tray moving means and the second tray moving means are respectively a first rotation moving mechanism (14, 1).
5) and a second rotary movement mechanism (24, 25, 26), and the driving force transmitting means is the first of the tray.
The driving force of the second rotary movement mechanism (24, 25, 26) at the time of movement from the predetermined position of the first rotation movement mechanism (14, 15) to the second predetermined position. 2. A loader unit according to claim 1, comprising a transmission idle gear mechanism (13, 16).