JPH07215415A - Tray transferring device - Google Patents

Abstract

PURPOSE:To reliably prevent a fall of a work from a tray by facing a fall preventing member to an actuating position on the more inside than an opening part of the tray when a work-placed tray is transferred by a push-sending member or a claw member. CONSTITUTION:When a work is placed on a tray 13 in a full condition, the tray 13 is placed on a guide rail. When a transferring mechanism 25 starts to advance, since a fall preventive member 35 is forward energized by a pair of tension springs 43, the fall preventing member 35 advances while an actuating lever 38 is horizontally rotating under an engaging action of a roller 39 and a slotted hole 38a. Thereby, a preventive body 37 of the fall preventive member 35 moves to an actuating position forward extending from a horizontal part of a push-sending member 15, and faces inside from an opening part 13e of the tray 13. A horizontal part of the push-sending member 15 comes into contact with an engaging piece of the tray 13 from the front side, and the tray 13 horizontally moves according to an advance of the transferring mechanism 25. In this case, since the preventive body 37 faces the front opening part 13e of the tray 13, the work does not fall from the opening end 13e.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tray transfer device which can prevent a work from falling from the tray when a tray on which a large number of small works are loaded is loaded into a magazine.

[0002]

2. Description of the Related Art A plurality of trays, on which a large number of works are placed, are accommodated in multiple stages in order to collect a required number of works such as small metal molded products and processed parts supplied from the preceding process and supply them to the next process. Used magazines. The magazine 10 shown in FIG. 15 has a box shape having an opening on the front side, and a pair of shelf members 11 and 11 (only one is shown in the drawing) are opposed to both left and right inner side surfaces intersecting with the opening 10a. Which are arranged in a pair, and the pair of shelf members 11, 11 are arranged in the magazine 1
It is arranged in multiple stages in the vertical direction of 0. Then, a tray 13 on which a large number of works 12 are placed is placed on each pair of shelf members 11, 11 in a state in which the tray 13 can be pulled out and loaded from the opening 10a. This tray 13 is shown in FIG.
As shown in FIG. 1, the bottom plate 13a has a rectangular shape, and side plates 13b and 13c and a rear plate 13d which are erected at a required height along the left and right sides and the rear edge of the bottom plate 13a. The work 12 is transferred onto the bottom plate 13a. An engaging piece 13f, which is used when the tray 13 is pulled out and loaded, is vertically provided at the front edge of the bottom plate 13a.

Then, the empty tray 13 accommodated in the magazine 10 is pulled out to a required position, and the magazine 1 of the tray 13 on which a required number of works 12 are placed.
Loading into 0 is carried out by the transfer device shown in FIG. This device includes a pushing member 1 that is horizontally movable.
5, the pushing member 15 is reciprocally moved between an advancing position close to the magazine 10 and a retracted position separated from the magazine 10 by forward and reverse biasing of a driving means (not shown). There is. A claw member 16 is tiltably supported by the pushing member 15, and the claw member 16 is engaged with an engagement piece 13f of the tray 13 by forward and reverse biasing of a linear actuator (not shown) such as a cylinder. It is set so as to be tilted between the engaging position and the retracted position that is separated downward from the engaging piece 13f.

The empty tray 13 accommodated in the magazine 10 is pulled out, the work 12 is transferred to the tray 13, and the magazine 10 of the tray 13 on which the work 12 is placed.
A series of operations relating to charging into will be described step by step. First, a magazine 1 containing a plurality of empty trays 13
0 is installed on the elevating and positioning means (not shown) which is arranged in front of the transfer device with a predetermined gap. This elevating / positioning means has trays 13 of each stage of the magazine 10 with engaging pieces 13f of which level is the horizontal movement of the pushing member 15.
The magazine 10 is sequentially raised at a height corresponding to the (drawer loading level).

When the required tray 13 accommodated in the magazine 10 is positioned at the drawer loading level, the pushing member 15 moves from the retracted position to the advanced position and the pawl member 16 facing the retracted position. Is made to face below the engaging piece 13f in the tray 13. By tilting the claw member 16 counterclockwise to face the engagement position, the claw member 16 is brought into a state in which it can be engaged with the engagement piece 13f. Next, when the pushing member 15 is retracted as shown in FIG. 15,
As the member 15 retreats, the claw member 16 is hooked on the engaging piece 13f, and the tray 13 is pulled out horizontally from the magazine 10. Then, when the pushing member 15 reaches the retracted position,
The tray 13 will be completely pulled out from the magazine 10.

When the tray 13 is pulled out from the magazine 10, as shown in FIG. 16, the claw member 16 engages with the engaging piece 13f.
Is tilted to a retracted position away from the lifting and lowering means 1
4, the tray 13 is raised to a work transfer position above the horizontal movement level of the pushing member 15. At the workpiece transfer position, as shown in FIG. 18, the workpieces 12 supplied from the previous process and aligned in a required number are pushed by the pusher 1.
Via the front opening 13e of the tray 13 to the bottom plate 13
transferred to a. When the required number of works 12 are transferred to the tray 13, the tray 13 is lowered to the horizontal movement level by the elevating means 14. Then, as the pushing member 15 advances, the front end of the pushing member 15 abuts the engaging piece 13f from the front side to horizontally transfer the tray 13 as shown in FIG. It is placed on the shelf members 11, 11. When the above steps are completed,
The magazine 10 is raised by the required height, and the tray 1 of the next stage is
After bringing 3 to the drawer loading level, the above-mentioned steps are repeated.

[0007]

In order to supply more work 12 supplied from the previous process to the next process, the work 12 is mounted on each tray 13 up to the vicinity of the front opening 13e. . In this case, the pushing member 15
When the tray 13 is loaded into the magazine 10 by the above, if the tray 13 is not transferred smoothly or the end portion of the tray 13 is caught by the shelf members 11 and 11, the work 12 located on the front end side is However, it often fell from the tray 13 through the opening 13e. For this reason, there is a drawback that a preset number of works 12 are not supplied to the next process, or the fallen works 12 are scratched or chipped to become defective products, resulting in a decrease in yield. Further, it is pointed out that the work 12 that has fallen from the tray 13 hinders the operation of the transfer device, interrupts the transfer of the tray 13, and lowers the work efficiency.

[0008]

SUMMARY OF THE INVENTION The present invention has been proposed in view of the above-mentioned drawbacks inherent in the prior art mentioned above, and is a tray transfer capable of reliably preventing a work from falling from a tray. The purpose is to provide a device.

[0009]

[Means for Solving the Problems] Overcoming the above-mentioned problems,
In order to preferably solve the intended purpose, the present invention is arranged horizontally in a tray withdrawal and loading direction with respect to a magazine in which a tray into / from which a work is loaded / unloaded from a front opening is accommodated so that the tray can be withdrawn / loaded. It is arranged so that it can move forward and backward, and when it moves from a retracted position separated from the magazine to an advanced position close to the magazine, it abuts on an engaging piece formed below the front open part of the tray and mounts the tray on the magazine. A pushing member to be inserted and a claw member which is arranged on the pushing member and which pulls out the tray from the magazine by engaging the engaging piece of the tray when the pushing member moves from the forward position to the backward position. In a transfer device provided with the tray, the tray is movably arranged in the moving direction of the pushing member, and can be moved forward and backward inward and outward of the tray from the front opening portion with respect to the tray transported by the pushing member or the claw member. The falling prevention member and the movement preventing member are moved between an operating position of the tray facing the inside of the tray from the opening of the tray and a retracting position of the tray separated from the outside of the tray. When the placed tray is transferred by the pushing member or the claw member, the fall prevention member is configured to face the working position inside the open portion of the tray, thereby preventing the work from falling from the open portion. It is characterized by

[0010]

EXAMPLES Next, regarding the tray transfer device according to the present invention,
A preferred embodiment will be described below in detail with reference to the accompanying drawings. It should be noted that the same members corresponding to the already-explained members described in the related art with reference to FIGS. 15 to 18 are denoted by the same reference numerals.

FIG. 1 is a plan view showing a schematic structure of a transfer device according to a preferred embodiment of the present invention.
It is arranged on the front side of the position where the magazine 10 accommodating the trays 13 in multiple stages is installed. The horizontal base 19 of the transfer device 18 has its longitudinal direction (close to the magazine 10,
A pair of fixed plates 20 and 20 are erected so as to be opposed to each other and spaced apart in the separating direction), and a rodless cylinder 21 is arranged between the fixed plates 20 and 20. The cylinder 21 is a cylinder tube 22 installed between both fixed plates 20 and 20 and a pair of guide rods 23 and 23 installed between the tube 22 and both fixed plates 20 and 20 slidably arranged to move. The moving element 24 is configured to reciprocate within a required range along the cylinder tube 22 and the pair of guide rods 23, 23 by urging the cylinder 21 forward and backward. Then, the tray 1 is attached to the mover 24.
A transfer mechanism 25 for pulling out and loading the third magazine 10 is provided. It should be noted that, as shown in FIGS. 1 and 7, a pair of L-shaped or U-shaped cross sections are formed on the left and right sides of the base 19 sandwiching the position where the rodless cylinder 21 is disposed, through a plurality of columns 26. The guide rails 27, 27 are arranged so as to face each other, and the tray 13 pulled out from the magazine 10 via the transfer mechanism 25 is horizontally transferred while being mounted on both guide rails 27, 27. There is.

A mover 24 of the rodless cylinder 21
A base plate 28 is fixed to the upper surface of the base plate 28 by bolts, and at the front end of the base plate 28, which is directed to the installation position of the magazine 10, as shown in FIG. Are integrally formed. The horizontal portion 15a of the pushing member 15 has the guide rail 27,
The tray 13 is positioned so as to come into contact with the engaging piece 13f of the tray 13 placed on 27 from the front side, and functions to push the tray 13 as the mover 24 advances (moves closer to the magazine 10) (FIG. 11).

As shown in FIG. 2, the lower surface of the horizontal portion 15a of the pushing member 15 is provided with a pair of protrusions 29, 2 spaced apart by a predetermined distance in the left-right direction intersecting the moving direction of the moving element 24.
9, a tray 13 accommodated in the magazine 10 is mounted on a tilting shaft 30 provided between the projecting pieces 29, 29.
The claw member 16 for pulling out the is pivotally supported so as to be tiltable. As shown in FIG. 8, the claw member 16 includes the horizontal portion 15
A claw portion 16a extending a predetermined length forward of the front end of a is formed, and the claw portion 16a is the engagement piece 1 of the tray 13.
3f has a shape that can be engaged from below. Further, the claw member 16 is pivotally supported by a piston rod 31a of an air cylinder 31 disposed in the vertical portion 15b of the pushing member 15, and by biasing the air cylinder 31 forward and backward, the claw member 16 is The claw portion 16a is configured to tilt between an engagement position (FIG. 8) at which the claw portion 16a can engage with the engagement piece 13f of the tray 13 and a retracted position (FIG. 9) that is spaced downward from the engagement piece 13f. . In addition, the slider 24 of the rodless cylinder 21
Is a forward position where the claw portion 16a of the claw member 16 faces the inside of the magazine from the engaging piece 13f of the tray 13 housed in the magazine 10 and the tray 13 is completely pulled out from the magazine 10 by the claw member 16. It is set to move to and from the retracted position.

At the left and right ends of the base plate 28, support bases 32,
As shown in FIG. 2, rails 33 are erected and fixed on the upper surface of each support 32 so as to extend in the front-rear direction, respectively. The fall prevention member 35 is slidably mounted.
As shown in FIG. 3, the fall prevention member 35 includes a rectangular plate-shaped main body 36 and a prevention body 37 disposed and fixed to the front end edge of the main body 36. The prevention body 37 is provided on the front surface of the tray 13. The size is set so that the tray 13 can be moved in and out from the opening 13e. The fall-prevention member 35 is actuated by actuating levers 38, 38, which will be described later, to prevent the prevention member 37.
Is configured to be moved back and forth between an operating position that extends forward from the front end of the horizontal portion 15a of the pushing member 15 and a retracted position that coincides with the front end of the horizontal portion 15a. When the fall prevention member 35 faces the operating position, the prevention body 37 faces the inside of the tray from the front opening 13e of the tray 13 transferred by the pushing member 15, thereby preventing the work 12 from falling. Has become. The preventive body 37 is made of, for example, a synthetic resin that does not damage the work 12.

Rollers 39 are rotatably and pivotally supported on the upper surfaces of the body 36 of the fall prevention member 35 in the vicinity of both left and right ends thereof, and each roller 39 is slidable in a long hole 38a formed in an operating lever 38. And is configured to transmit the movement of the operating lever 38 to the fall prevention member 35. The support portion 40 is provided on the side surfaces of the support bases 32, 32, which are separated from each other.
Respectively extend horizontally toward the outside, and each support portion 40
41 is erected on the upper surface of the. Further, as shown in FIG. 4, on the back surface of the fall prevention member 35, a pin 42 is vertically provided at a position corresponding to each pin 41 and spaced rearward, and a tension spring 43 is tensioned between the corresponding pins 41 and 42. It is set up. As a result, the fall prevention member 35 is always urged forward by the pair of tension springs 43, 43. As shown in FIG. 5, fixing pieces 44, 44 are vertically provided at appropriate positions on the lower surface of the fall prevention member 35.
The stopper 46 is provided on the support base 32 via a bracket 45, and functions to position the operation position of the fall prevention member 35.

The horizontal portion 15a of the pushing member 15 is shown in FIG.
As shown in FIG. 5, a pair of fulcrum shafts 47, 47 are arranged so as to be separated from each other on the left and right, and each fulcrum shaft 47 is upwardly moved through a long hole 36a formed at a corresponding position of the body 36 of the fall prevention member 35. It is extended. The long hole 36a extends in the front-rear direction by a required length, and the fall prevention member 3 is attached to the fulcrum shafts 47, 47.
5 is allowed to move in the front-back direction.

On each fulcrum shaft 47 extending above the fall prevention member 35, as shown in FIG. 3, the corresponding lever 38 of the left and right actuating levers 38, 38 is rotatably supported. Each lever 38 is configured to be horizontally rotatable about a fulcrum shaft 47. A long hole 38a in the left-right direction is formed near the separated end of each operating lever 38, and the corresponding roller 39 of the fall prevention member 35 is inserted into the long hole 38a. Further, at the ends of the respective operating levers 38 that are close to each other, the operating pins 48 that vertically project upward are provided.
Are fixedly arranged via a nut 49 on the lower surface of the arm. In addition, fixing nuts 49, 4 for both operating pins 48, 48
9, a body 36 of the fall prevention member 35 corresponding to 9 is provided with a through hole 36b extending in the front-rear direction.
It is configured to allow 49 movements.

A pair of side plates 50, 50 are erected in the vicinity of the rear end side of the base 19 so as to be laterally separated from each other, and a table 51 is provided between the upper ends of the side plates 50, 50. On the table 51, the works 12 are supplied from a direction intersecting the moving direction of the transfer mechanism 25, and when a required number of works 12 are aligned, they are transferred to the front side by the pusher 17. As shown in FIG. 2, a fixing pin 52 is fixed to the lower surface of the table 51 so as to come into contact with both the operating pins 48, 48 arranged on the operating levers 38, 38. The fixing pin 52 is provided with the operating pin 48, before the transfer mechanism 25 is retracted to the retracted position.
48 so as to come into contact with the operating pin 48,
By blocking the movement of 48, the operating levers 38, 3
It functions to horizontally rotate 8 around the fulcrum shafts 47, 47. That is, the operating pins 48, 48 are fixed pins 5.
As the transfer mechanism 25 is further retracted after the contact with 2, the operating levers 38, 38 horizontally rotate in opposite directions about the fulcrum shafts 47, 47, as shown in FIG. The fall prevention member 35 is moved to the rear side via the roller 39 inserted through the long hole 38a of the lever 38.
As a result, the fall prevention member 35 moves to the retracted position where the front end of the prevention body 37 matches the front end of the horizontal portion 15a of the pushing member 15 (see FIG. 10).

As shown in FIG. 7, an elevating cylinder 53 is placed upside down on the lower surface of the base 19, and the base 19 is attached to a connecting member 54 connected to a pinton rod 53a of the cylinder 53.
A plurality of (four in the embodiment) elevating rods 55 that are inserted so as to be able to elevate and lower are arranged. Further, as shown in FIG. 1, the base 1
Support plates 56 are respectively arranged on the upper ends of the elevating rods 55, 55 aligned in the longitudinal direction of 9, and the tray 13 pulled out from the magazine 10 by the transfer mechanism 25 is moved by the pair of support plates 56, 56. The upper surface of the bottom plate 13a and the upper surface of the table 51 in FIG.

[0020]

Next, the operation of the tray transfer device according to the embodiment will be described. It is assumed that the empty trays 13 in the required stages housed in the magazine 10 are aligned with the horizontal movement level of the transfer mechanism 25, and the transfer mechanism 25 stands by at the retracted position.

When the rodless cylinder 21 is biased in the required direction, the transfer mechanism 25 standing by at the retracted position moves closer to the magazine 10 and is stopped at the advanced position (the position indicated by the chain double-dashed line in FIG. 1). It At this time, since the claw member 16 of the transfer mechanism 25 faces the retracted position, the claw portion 16a of the claw member 16 is located below the engaging piece 13f of the tray 13. Next, the air cylinder 31 is biased to tilt the pawl member 16 to the engagement position. The fall prevention member 35 is provided on the front opening 13e of the tray 13.
It is facing inward.

When the rodless cylinder 21 is urged in the opposite direction, the transfer mechanism 25 starts retreating, and the tray 13 faces the engaging position as shown in FIG.
The engaging piece 13f is hooked on the claw portion 16a of No. 6 and pulled out from the magazine 10. The tray 13 is transferred to the pair of guide rails 27, 27 to transfer the transfer mechanism 2
It moves horizontally with the retreat of 5. When the transfer mechanism 25 reaches below the table 51, a pair of operating pins 48, 48 are attached to a fixing pin 52 fixed to the lower surface of the table 51.
Abut, and the movement of the pins 48, 48 is blocked. Since the transfer mechanism 25 is further retracted, as shown in FIG. 6, the two operating levers 38, 38 horizontally rotate in the opposite directions with respect to the fulcrum shafts 47, 47 as centers. At this time, the rollers 39, 39 arranged on the fall prevention member 35 are provided with corresponding long grooves 38 formed on the backward end side of the respective operating levers 38.
Since it is inserted through a, the fall prevention member 35 is moved rearward by the rotation of the levers 39, 39. Then, when the transfer mechanism 25 stops at the retracted position, the prevention body 37 of the fall prevention member 35 retracts from the inside of the tray 13 to face the retracted position, as shown in FIG. The transfer mechanism 25
When is retracted to the retracted position, the air cylinder 31 is reversely biased and the pawl member 16 is tilted from the engaged position to the retracted position.

Next, the elevating cylinder 53 is urged to raise the support plates 56, 56, so that the tray 13 placed on the guide rails 27, 27 is
As shown in FIG. 10, the upper surface of the bottom plate 13a is the table 5
The work is moved up and positioned at a work transfer position that coincides with the upper surface of 1. Since the preventive body 37 of the fall prevention member 35 faces the retracted position, the rise of the tray 13 is not hindered. Work pieces 1 are sequentially placed on the table 51 from the previous process.
2 is supplied and every time the required number of the works 12 is aligned,
The pusher 17 transfers the tray 13 from the opening 13e to the bottom surface 13a.

When the work 12 is placed on the tray 13 in a full state, the elevating cylinder 53 is reversely biased and the tray 13 is placed on the guide rails 27, 27 again.
The rodless cylinder 21 is urged to move the transfer mechanism 25.
When the forward movement is started, the operation pins 48, 48 are separated from the fixed pin 52. The fall prevention member 35 is urged forward by a pair of tension springs 43, 43, so that the rollers 39, 39 and the long holes 38a, 38a.
Under the action of engaging with, the fall preventing member 35 moves forward while the operating levers 38, 38 horizontally rotate. As a result, the prevention body 37 of the fall prevention member 35 moves to an operating position extending forward from the horizontal portion 15a of the pushing member 15 and faces the inside from the opening portion 13e of the tray 13, as shown in FIG. Becomes Further, the horizontal portion 15a of the pushing member 15 comes into contact with the engaging piece 13f of the tray 13 from the front side, and the tray 13 is guided by the guide rails 27, 2 as the transfer mechanism 25 advances.
Move horizontally along 7. Then, the tray 13 is transferred to the shelf members 11, 11 of the magazine 10 to complete the loading of the tray 13 on which the work 12 is placed.

In this case, the transfer of the tray 13 is not carried out smoothly, or the end of the tray 13 is located at the shelf member 1.
Even if the work pieces 12 and 11 are caught, the prevention body 37 of the fall prevention member 35 entirely faces the front opening portion 13e of the tray 13, so it is certain that the work 12 falls from the opening portion 13e to the outside. To be prevented. That is, magazine 1
0 accommodates a tray 13 on which a preset required number of workpieces 12 are placed, so that the workpieces 12 for the next process
The number of supplies will not decrease. Further, the work 12 falls from the tray 13 and is damaged, or
Thus, it is possible to prevent the occurrence of an accident in which the movement of the transfer mechanism 25 interferes.

[0026]

[Another embodiment] FIG. 12 shows another embodiment of the present invention, in which a cylinder 57 having an independent fall prevention member 35 is provided.
It is configured to move forward and backward by. That is, the cylinder 57 is horizontally arranged above the vertical portion 15b of the pushing member 15, and the piston rod 5 of the cylinder 57
7a is directly connected to one end of the fall prevention member 35. In this alternative embodiment, the fall prevention member 35 is always facing the retracted position, and the fall prevention member 35 is inserted only when the tray 13 on which the work 12 is placed is loaded into the magazine 10.
The front opening portion 13 of the tray 13 is biased by the cylinder 57.
It is possible to face the working position facing inward from e. In addition, this alternative embodiment has an advantage that the moving mechanism of the fall prevention member 35 can be simplified.

13 and 14 show another embodiment of the present invention, in which the fall prevention member 35 is
The claw member 16 is moved by a cylinder 58 that tilts the claw member 16. That is, as shown in FIG. 13, the piston rod 58 of the cylinder 58 disposed on the base plate 28 is
The tip of a is pivotally supported by a claw member 16 which is pivotally supported by the pushing member 15 so as to be tiltable. A fixing tool 59 is fixed to a required position of the piston rod 58a so as to move integrally, and a rod 60 having a required length is erected on the fixing tool 59. A ring 62 is integrally formed at the end of the rod 61 extending from the rear end of the fall prevention member 35, and the rod 60 is slidably inserted in the ring 62. Therefore, when the cylinder rod 58 is urged in the forward and reverse directions to move the piston rod 58a forward and backward, the fall prevention member 35 integrally moves forward and backward via the rod 60 and the ring 62, as shown in FIG. In this alternative embodiment, when the claw member 16 is moved to the retreat position, the fall prevention member 35 is also set to the retreat position.

The invention of the present application is not limited to the above-described embodiments, and other configurations can be adopted. For example, a cylinder may be arranged on the table 51, and the operating levers 38, 38 may be horizontally rotated by the cylinder. Further, by utilizing the fact that the claw member 16 tilts, the claw member 16 and the fall prevention member 35 are connected via a link mechanism, as in the case of another embodiment shown in FIGS. 13 and 14. It is also possible to move the fall prevention material 35 between the retracted position and the operating position as the claw member 16 tilts.

In the embodiment, the case where the transfer device 18 is used in the process of pulling out the empty tray 13 from the magazine 10 and loading the tray 13 on which the work 12 is placed into the magazine 10 has been described. The transfer device 18 can be preferably used also in the process of pulling out the tray 13 on which the work 12 is placed from the magazine 10 and loading the empty tray 13 into the magazine 10. Even in this case, the front opening 13 of the tray 13
The fall of the work 12 from e can be reliably prevented by the fall prevention member 35.

[0030]

As described above, according to the tray transfer device of the present invention, the work placed on the tray is
It is possible to reliably prevent the tray from falling during transfer. That is, it is possible to prevent a preset number of works from being supplied to the next step, or the works that have fallen are scratched or chipped to become defective products, resulting in a decrease in yield. In addition, it is possible to prevent the situation in which the work dropped from the tray hinders the operation of the transfer device, the transfer of the tray is interrupted, and the work efficiency is lowered.

Further, in the structure in which the fall prevention member is moved between the operating position and the retracted position by the actuating lever which is horizontally rotated with the movement of the pushing member, a dedicated drive source for moving the fall prevention member is provided. Since it is not necessary, the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a plan view of a tray transfer device according to a preferred embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of a main part of the tray transfer device according to the embodiment.

FIG. 3 is a plan view showing the transfer mechanism according to the embodiment with the fall prevention member facing the operating position.

FIG. 4 is a longitudinal sectional view of a main part of the transfer mechanism according to the embodiment.

FIG. 5 is a longitudinal sectional view of a main part of the transfer mechanism according to the embodiment.

FIG. 6 is a plan view showing the transfer mechanism according to the embodiment with the fall prevention member facing the retracted position.

FIG. 7 is a vertical cross-sectional view of a main part showing a tray lifting mechanism in the transfer device according to the embodiment.

FIG. 8 is an explanatory diagram showing a state in which an empty tray is pulled out from the magazine by the tray transfer mechanism according to the embodiment.

FIG. 9 is an explanatory diagram showing a state in which the fall prevention member of the transfer mechanism according to the embodiment has moved from the operating position to the retracted position.

FIG. 10 is an explanatory diagram showing a state in which an empty tray is raised to a work transfer position by the tray lifting mechanism according to the embodiment.

FIG. 11 is an explanatory diagram showing a state in which a tray on which a work is placed is loaded into a magazine by the transfer mechanism according to the embodiment.

FIG. 12 is a schematic configuration diagram showing another embodiment of the tray transfer device according to the present invention.

FIG. 13 is a schematic view showing yet another embodiment of the tray transfer device according to the present invention and showing the fall prevention member in the operating position.

FIG. 14 is a schematic configuration diagram showing still another embodiment shown in FIG. 13 in a state where the fall prevention member faces the retracted position.

FIG. 15 is an explanatory diagram showing a state where an empty tray is pulled out from the magazine by the transfer device according to the conventional technique.

FIG. 16 is an explanatory diagram showing a state in which a tray pulled out by a transfer device according to a conventional technique is raised to a work transfer position.

FIG. 17 is an explanatory diagram showing a state where a tray on which a work is placed is loaded into a magazine by a transfer device according to a conventional technique.

FIG. 18 is an explanatory perspective view showing a state where a plurality of aligned works are transferred to a tray via a pusher.

[Explanation of symbols]

 10 Magazine 12 Work 13 Tray 13e Opening Part 13f Engaging Piece 15 Pushing Member 16 Claw Member 35 Fall Prevention Member 38 Actuating Lever 43 Tension Spring 47 Support Point Shaft 48 Actuating Pin 52 Fixing Pin 57 Cylinder 57a Piston Rod 58 Cylinder

Claims (4)

[Claims] 1. A tray (13) for loading and unloading a work (12) from a front opening (13e) and a tray (13) for loading and unloading the tray (13) The magazine (1
When moving from the retracted position away from (0) to the advanced position close to the magazine (10), the front opening (13e) of the tray (13)
When the tray (1f) is brought into contact with the engaging piece (13f) formed below
The pushing member (15) for loading the magazine (10) into the magazine (10) and the pushing member (15) are provided, and when the pushing member (15) moves from the forward position to the backward position, the tray ( Claw member that engages with the engaging piece (13f) of 13) and draws out the tray (13) from the magazine (10)
(16) in the transfer device, which is movably arranged in the moving direction of the pushing member (15), and is transferred to the tray (13) by the pushing member (15) or the claw member (16). The tray (1e) from the front opening (13e).
The fall prevention member (35) capable of moving inward and outward in (3) and the fall prevention material (35) are attached to the opening (13) of the tray (13).
e) an operating position facing the inside of the tray, and a moving means for moving between a retracted position spaced apart from the outside of the tray (13), and the tray (13) on which the work (12) is placed is Pushing member
When transferring by the (15) or the claw member (16), the work (12) is opened by exposing the fall prevention member (35) to an operating position inside the opening (13e) of the tray (13). Division (13e)
A tray transfer device characterized in that it is configured to prevent falling from the tray. 2. The movement means of the fall prevention member (35) is horizontally rotatably arranged on the pushing member (15), and the end portions separated from each other are connected to the fall prevention member (35), respectively. The pair of actuating levers (38, 38) and the actuating pin (48) erected at the end opposite to the connecting part with the turning fulcrum (47, 47) of the actuating levers (38, 38) interposed. , 48), and a fixing portion located in front of the retracted position of the pushing member (15).
A fixing pin (52) disposed on (51), with which the operating pins (48, 48) can contact, and an elastic means (43) for constantly biasing the fall prevention member (35) toward the operating position. , 43), and when the pushing member (15) moves from the proximity position of the magazine (10) to the retracted position, the operating pin (48, 48) is fixed by the fixing pin (5).
By further retracting the pushing member (15) after contacting with (2), the operating levers (38, 38) are horizontally rotated in mutually opposite directions, and the fall prevention member (35) is interlocked with this. 3. The tray transfer device according to claim 1, wherein the tray transfer device is configured to be moved from the operating position to the retracted position. 3. The tray transfer device according to claim 1, wherein the moving means of the fall prevention member (35) is a cylinder (57) in which a piston rod (57a) is directly connected to the fall prevention member (35). 4. An engaging position for engaging the claw member (16) with an engaging piece (13f) of the tray (13), and an engaging piece (13f), for moving the falling prevention member (35). The tray transfer device according to claim 1, wherein the tray transfer device is a cylinder (58) that moves between a retracted position and the retracted position.