JPS6347387Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a press plate conveying device for conveying a press plate to a press mold section.

Generally, when pressing press plates are fed one by one to the press mold section, the press plates are fed one by one to a fixed position from a stacker stacked with blank press plates (for example,
(Refer to Publication No. 3141), the press plate material supplied to this supply position is held by the holding members disposed on the left and right sides, and by moving this holding member forward, it is sequentially applied to each press mold part of the transfer press. The press plate material is transported and sequentially formed into a predetermined shape in each of the press die sections.

However, in this case, when the press plates are fed one by one from the stacker to the supply position, two or more press plates may come into close contact with each other due to oil adhering to the surface of the press plates during blanking, etc. may be supplied to the supply position and transported as is to the transfer press. As a result, the mold in the press mold section was damaged, resulting in a large amount of damage due to mold repair and line stoppage.

For this reason, conventionally, a limit switch is installed on the conveyor that supplies the press plate material to the supply position or on the idle stage before the pressing process of the transfer press to detect the thickness of the press plate material being conveyed. When transporting press plate materials, the transfer press was stopped to prevent the transport.

However, since the above-mentioned conventional type relies on electric detection of the limit switch, there is no absolute guarantee of its operation, and although the incidence is low, multiple press plate materials may be accidentally damaged in the press mold part of the transfer press due to malfunction. may be transported to
There was a problem with the lack of reliability in preventing the above-mentioned transport.

The present invention has been developed in view of this point, and when conveying press plates from the supply position to the press die by holding them from the left and right sides, it is possible to allow one press plate to pass through, but it is not possible to stack the press plates on top of it. By blocking the passage of the second or more stacked press plate materials and removing them, it is possible to reliably prevent multiple press plate materials from being conveyed to the press die section and prevent mold damage in the press die section. The purpose is to prevent

In order to achieve this purpose, the press plate material supplied to the fixed position is held from the left and right by the holding members disposed on the left and right sides, and the holding members are moved forward to convey the press plate material to the press die section. In a conveying device for press plate materials, a stopper member is provided at an outlet in the conveyance direction of a supply position of the press plate material so that only one press plate material can pass through, and a stopper member is supported at the rear of the clamping member so as to be swingable in the front and rear directions. and a locking member that is always biased by an elastic member to a position where the rear part of the press plate material can be locked, and has a height that can lock a plurality of stacked press plate materials, and a plurality of press plates at the supply position. By configuring the press plate material to come into contact with the stopper member and release the engagement of the locking member when the plate material is fed, the conveyance of the second or more stacked press plate materials can be stopped by the stopper member. Moreover, the locking member is released from the holding member by releasing the locking member.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

Figure 1 shows a large number of stacked disc-shaped press plates w.
1 shows a line process in which sheets are fed one by one to a predetermined supply position and then transported to each press mold section of a transfer press. 1 is a stacker where a large number of circularly blank press sheets w, w... are piled up. ,
2 is a belt conveyor disposed in front of the stacker 1 in the transport direction (arrow x direction); 3 is a stack feeder disposed above between the stacker 1 and the belt conveyor 2; 4 is the belt conveyor 2; A chute connected to the terminal end of the chute lifts the press plate materials w accumulated on the stacker 1 one by one using the stack feeder 3 and transfers them to the belt conveyor 2.
After being transferred to the top, it is transported by the belt conveyor 2, and from its terminal end, it is supplied to a fixed position on an idle stage 5, which is a predetermined supply position, by a chute 4. Reference numeral 6 denotes a transfer press disposed in front of the idle stage 5 in the conveying direction, and the transfer press 6 has press mold parts 6a and 6b spaced apart from each other at equal intervals and at the fixed position (supply position). It is arranged at the same height position as the press plate material w, and is used to sequentially set up and form the press plate material w.

The above idle stage 5 and press mold part 6
In a and 6b, as shown in FIG. 2, 7a and 7b are a pair of conveyance bars extending parallel to the conveyance direction and disposed on the left and right sides of the idle stage 5 and the press mold parts 6a and 6b, The conveyor bars 7a, 7b repeat a rectangular movement of forward movement → outward movement → backward movement → inward movement, as shown by broken lines in FIG.
The supply position and the press mold parts 6a, 6b are shown in FIG.
Y-shaped fingers 8a, 8a..., 8b, 8a, 8a, .
8b... are provided in pairs facing each other, and by moving the respective transport bars 7a, 7b inward, the transport bars 7a, 7b move closer to each other from the left and right so as to shorten the distance between them, thereby changing the supply position. After the press plate material w supplied to the press plate material w and the press plate material w placed on the press mold parts 6a and 6b are held from the left and right by the fingers 8a and 8b, respectively, the conveyor covers 7a and 7b are held at a predetermined pitch (at a fixed position). The fingers 8a and 8b move forward due to the forward movement of the distance from the press mold part 6a and the distance between the press mold parts 6a and 6b, and the press plate material w at the supply position is transferred to the press mold part 6a. The press plate material w is conveyed to the next press die part 6b, and the press plate material w of the last press die part 6b is carried out to the front of the transfer press 6, and then each conveyor bar 7a, 7
b moves outward to widen the distance therebetween, then moves backward by the predetermined pitch and returns to its original position, during which time the press plate material w supplied to the supply position is sequentially transferred to each of the transfer presses 6. Each press mold part 6 is conveyed to the press mold parts 6a and 6b.
A and 6b are configured to sequentially press-form the press plate material w into a predetermined shape.

A rectangular frame-shaped guide member 9 is provided directly above the supply position to guide the press plate material w supplied from the chute 4 onto the fingers 8a and 8b that have moved closer to the left and right sides of the supply position. A stopper member 10 is provided to protrude downward from the front lower surface of the guide member 9, that is, at the outlet in the conveying direction at the supply position of the press plate material w. For t<s<2t
is set within the range of fingers 8a, 8
When conveying the press plate material w at the supply position held between the fingers 8a and 8b, only the lowest one of the press plate materials w on the fingers 8a and 8b can pass, but the second or higher press plate material w stacked on top of it can pass through. is the stopper member 10
It is designed to come in contact with and prevent its passage.

On the other hand, at the rear of the fingers 8a and 8b, there are locking members 11a for locking the press plate material w, respectively.
11b is supported so as to be swingable in the front and back direction, and is always urged by a spring 12 as an elastic member to a position where the rear part of the press plate material w can be locked, and the locking members 11a and 11b are stacked. It has a height that can lock a plurality of press plates w, w..., and when a second or more press plate w... comes into contact with the stopper member 10, the press plates w... By swinging backward against the biasing force of the spring 12 due to the contact force, the press plates w, w...
It is configured to release the press plates w, w... from the fingers 8a, 8b by releasing the engagement with the fingers 8a, 8b.

In addition, 13 is the finger 8a, 8 at the above-mentioned supply position.
This is a catch plate that receives the press plates w, w... placed directly below b. Further, reference numeral 14 denotes a limit switch for detecting a misgrip, which is provided corresponding to each finger installation position of the conveyance bar 7b, and is a limit switch for detecting a misgrip when the finger 8b moves close to the finger 8b.
When it is detected that the press plate material w is not held between a and 8b, a line stop signal is output, and the operations of the conveyor bars 7a and 7b and the transfer press 6 are stopped. Furthermore, 15 is a passage detection limit switch disposed in front of the stopper member 10 of the guide member 9, which detects passage of a regular press plate w passing through the stopper member 10 and outputs a passage signal. This passing signal causes the conveyor bars 7a, 7b and the transfer press 6 to continue operating.

Next, to explain the operation of the above embodiment,
When a piece of press plate material w is supplied to a fixed position from the belt conveyor 2 via the chute 4, it is held between the left and right fingers 8a and 8b, and the press plate material w is moved forward by the fingers 8a and 8b. The material is sequentially conveyed to the press mold parts 6a and 6b, and is pressed into a predetermined shape by the press mold parts 6a and 6b.

On the other hand, when two or more press plates w, w... are brought into close contact with each other due to oil adhering to the surface of the press plate w during blanking etc. and are supplied to a fixed position, these press plates w, w... . . . are held from left and right by the fingers 8a and 8b in the same way as above and are about to be conveyed forward, but the second or higher press plate material w comes into contact with the stopper member 10 and is prevented from passing. As a result, the locking members 11a, 11b are unlocked and released from the fingers 8a, 8b, and the press plates w... are not conveyed to the press mold section 6a, and the plurality of press plates w, w ... can be reliably prevented from being transported to the press mold parts 6a, 6b. the result,
It is possible to prevent mold damage to the press mold parts 6a and 6b.

In addition, as mentioned above, the second or more press plate material w...
If the relative position of ... with the finger 8b shifts, the limit switch 14 outputs a line stop signal and stops the operation of the conveyor bars 7a, 7b and transfer press 6, causing damage to the press mold parts 6a, 6b. can be prevented even more reliably.

As explained above, according to the present invention, in a press plate conveying device in which a press plate supplied to a fixed position is clamped from the left and right by clamping members and conveyed to a press die section, when a plurality of press plates are supplied to the supply position, the stopper member prevents the passage of the second or more press plates,
Furthermore, since the press plate material is released and removed from the clamping member by releasing the engagement of the locking member that locks it from the rear, it is possible, with a simple structure, to reliably prevent multiple press plate materials from being transported to the press die section and prevent damage to the press die section.

[Brief explanation of the drawing]

The drawings illustrate an embodiment of the present invention, and FIG. 1 is a general schematic diagram, FIG. 2 is a plan view of the main part, FIG. It is an enlarged perspective view. w...Press plate material, 6...Transfer press, 6a, 6b...Press mold part, 7a, 7b...
Conveyance bar, 8a, 8b...Finger, 10...
Stopper member, 11a, 11b...Locking member, 1
2...Spring.

Claims (1)

[Scope of utility model registration request] 1. A press plate transport device in which a press plate supplied to a fixed position is clamped from the left and right by clamping members arranged on the left and right sides and the clamping members are moved forward to transport the press plate to a press die section. The press plate transport device is characterized in that it comprises a stopper member arranged at an outlet portion in the transport direction of the supply position of the press plate so that only one press plate can pass through, and a locking member supported on the rear part of the clamping member so as to be swingable in the front and rear directions, and which is constantly urged by an elastic member to a position where it can lock the rear part of the press plate, and has a height capable of locking a plurality of stacked press plates, and when a plurality of press plates are supplied to the supply position, the press plates abut against the stopper member to release the engagement of the locking member.