JPS6338049Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a press product transfer device for transferring a press product taken out from a press mold.

Conventionally, there are two types of press product transfer devices for transferring press products immediately after being taken out from a press mold: a cylinder type that uses an air cylinder, and a chute tilt type that uses the inclination of a chute. be. The former cylinder type requires a separate power source exclusively for the transfer device, which poses a cost problem. On the other hand, the latter type of chute tilting type simply utilizes gravity, and therefore has the problem that the direction of movement is limited.

This idea was made in view of the above-mentioned circumstances.
The object is to provide a press product transfer device that utilizes the stroke of the ram, which is essential for opening the press mold. In order to achieve this purpose, the press product transfer device of the present invention includes (A) a chute installed on the lower die table to receive the press product taken out from the press die; a guide member arranged to be able to reciprocate between a transfer start position and a transfer end position with respect to the product; (C) a wire connected to the guide member and extending in two directions; (D) one of the wires (E) The other wire is wound around a movable pulley equipped with a biasing means for biasing the guide member to the transfer end position, and its tip is fixed to the lower mold table. A latch provided on the ram of the wire, a latch lever that engages with the latch and rotates as the ram rises, and a movable pulley provided on the latch lever. (F) The engagement between the latch and the latch lever in the wire pulling means is configured to be released when the guide member is pulled to the transfer starting position. It is characterized by the presence of

Hereinafter, one embodiment of the present invention will be described based on the drawings.

FIG. 1 shows a press product transfer device according to the present invention as well as a press product take-out device for taking out the press products to the transfer device.

Before entering into a description of the transfer device, a brief description of the take-out device shown in this figure will be given. A latch 1 for a take-out device, which is attached to the ram of a press, is provided with a protrusion 1a at one end thereof. The first pivot lever 2 and the second pivot lever 3 located below the pressed product are rotatably supported by a support shaft 5 along with a latch lever 4 that engages with the projection 1a. In the ejecting device having such a structure, the latch 1 also rises as the ram rises, and the latch 1 rotates the engaged latch lever 4, and this rotation simultaneously causes the latch lever 2, 3 also rotates, and the pressed product is taken out into the chute described later.

Next, the transfer device will be explained with reference to FIG. 2 as well. The chute 6 located near the take-out device is placed on the lower mold table 7 so as to be parallel to the lower mold table 7, that is, without being inclined. The guide member 8 connects its support portion 8a to the chute 6.
It is inserted into the opening 6a of and is arranged so as to be able to reciprocate in the transfer direction. As shown in FIG. 1, the range of reciprocating movement of the guide member 8 is a transfer start position 8' and a transfer end position 8'' (i.e., the return position of the guide member 8) with respect to the pressed product. The wire 9 extending in two directions is fixed at both ends by fixing means 10, 10'.The wire 9 extends from one fixing means 10 to the other fixing means 10'.
The first pulley 11, the second pulley 12, the third pulley 13, the fourth pulley 14, and the fifth pulley 15 are sequentially engaged with each other. In this case, the first pulley 11 and the fifth pulley 15 located near each of the fixing means 10, 10'
is a movable pulley, and other pulleys 12, 13, 1
4 is a fixed pulley, and the reciprocating range of the guide member 8 is arranged between the second pulley 12 and the third pulley 13. The first pulley 11 which is a movable pulley is the urging means 1
6 and fixed by fixing means 17. A fifth pulley 15, which is also a movable pulley, is attached to a rotatably supported latch lever 18 for the transfer device. A transfer device latch 19 attached to the ram of the press is located near the rotating member 18, and a projection 19a provided at one end of the latch 19 engages with the rotating member 18.

As described above, the wire connected to the guide member 8 and extending in the direction of conveyance of the press parts is wound around the fixed pulley 12 and the movable pulley 11, and its tip ends at the fixing means 10.
However, since the movable pulley 11 is provided with a biasing means 16,
The biasing means 16 applies a biasing force to the guide member 8 to return it to the transfer end position 8''.

On the other hand, the wire connected to the guide member 8 and extending in the direction of the transfer start position 8' of the guide member 8 is connected to the fixed pulley 13,
14 and a movable pulley 15, and its tip is fixed to the lower mold table 7 by a fixing means 10'. This is done by pulling a wire wound around 15, which is pulled through latches 19 on the ram of the press;
This is accomplished by a series of traction means consisting of a latch lever 18 engaging the latch and a movable pulley 15 mounted on the latch lever.

When the guide member 8 moves to the transfer start position 8',
The engagement between the latch 19 and the latch lever 18 in the traction means is released, the wire is no longer pulled, and as a result, the urging force of the urging means 16 moves the guide member 8 from the transfer start position 8' to the transfer end position 8''. (return position), at which time the pressed product in the chute is transported by the guide member 8.

Next, the operation of the transfer device will be explained in more detail. 3A and 3B show the state of the ram at its bottom dead center, where the protrusion 19a of the latch 19 attached to the ram 20 is engaged with the latch lever 18. Here, when the ram 20 is raised, the latch 19 is also raised, and the latch lever 18 that is engaged with the latch 19 is moved counterclockwise (FIG. 3A).
Rotate to. As the latch lever 18 rotates, the fifth pulley 15, which is a movable pulley, also moves in the same direction.
Since the wire 9 wound around the fifth pulley 15 is pulled, the guide member 8 connected to the wire 9 moves in the direction where the third pulley 13 is located. Thereafter, the projection 19a of the latch 19 is in the state immediately before the engagement between the latch 19 and the latch lever 18 is released, that is, in the state shown in FIG.
are from 18a to 18b at one end of the latch lever 18.
During this period, the counterclockwise movement of the latch lever 18 is temporarily stopped, and at this stage, the pressed product 21 is taken out into the chute 6 by the operation of the above-mentioned taking out device. In this case, the extraction location in the chute 6 is near the transfer start position 8' of the guide member 8 and on the second pulley 12 side with respect to the guide member 8. Then, when the ram 20 is further raised, the engagement between the latch 19 and the latch lever 18 is released.
Due to the urging force of the urging means 16, the guide member 8 returns to the transfer end position 8'' (return position), so the pressed product 21 is also transferred in the direction of the return position.The state at this time is shown. The ram 20 is lowered to its bottom dead center, the protrusion 19a of the latch 19 is engaged with the latch lever 18 [Fig. 3 A, B], and one cycle is completed. is completed.

FIG. 6 shows a series of operating timings of such a take-out device and a transfer device in terms of the stroke of the ram. In this figure, a and b
1 is related to the take-out device and indicates the operating timing of the rotary levers 2 and 3, a is the start time and b is the completion time. a, b and c relate to the transfer device, and the guide member 8
, where a is the start time, b is the stop time, and c is the completion time.

In this example, since the stroke of the ram is utilized not only for the transfer device but also for the take-out device, it is very easy to adjust the operating timing of both devices.

As described above, since the press product transfer device of the present invention utilizes the stroke of the ram, a separate drive source is not required for transfer, and the press product can be moved regardless of the posture of the chute. be able to. Further, since the guide member and the ram are linked using wires and pulleys, it can be implemented at low cost, and the degree of freedom in the arrangement of the transfer device with respect to the press machine is increased, resulting in high versatility.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the present invention together with a take-out device, Fig. 2 is a side view in the A direction showing a part of the above example, and Fig. 3 A and I are the above example at the ram bottom dead center. 4A and 4B are plan views and side views in B direction showing the above example while the ram is rising, and FIGS. 5A and 5A are plane views showing the above example at the top dead center of the ram. FIG. 6 is a graph showing an example of the operation timing of the take-out device and the transfer device. 8... Guide member, 9... Wire, 15... Moving pulley (fifth pulley), 16... Biasing means, 20... Ram, 21... Pressed product.

Claims (1)

[Scope of Claim for Utility Model Registration] In a press product transfer device for transferring a press product taken out from a press mold, (A) a chute installed on a lower die table to receive the press product taken out from the press mold; , (B) a guide member provided in the chute and arranged to be able to reciprocate between a transfer start position and a transfer end position for the pressed product; and (C) a guide member connected to the guide member and extending in two directions. (D) one wire is wound around a movable pulley equipped with a biasing means for biasing the guide member to the transfer end position, and its tip is fixed to the lower mold table; (E) The other wire consists of a latch provided on the ram of the press, a latch lever that engages with the latch and rotates as the ram rises, and a movable pulley provided on the latch lever. The wire is wound around a movable pulley in the pulling means, and its tip is fixed to the lower mold table; The device is characterized in that it is configured to be released when it is towed into position. (G) Transfer device for pressed products.