JPS638671Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for transferring continuously delivered uncured molded products such as cement compositions to pallets for transportation.

To explain a conventional extrusion molding apparatus for a cement-based composition, as shown in FIG. An uncured molded product 1' (hereinafter simply referred to as a molded product) is transferred from a transfer conveyor 2' to a pallet 3' located below it.

For the above-mentioned transfer, a conveyor-like pallet extrusion device 4' is moved by a drive wheel 5' to an arrow 6'.
The pallet 3' is pushed in the direction of the arrow 8' by a pusher 7' mounted on the conveyor, and the pallet 3' is moved at a speed equal to that of the transfer conveyor 2'. Let's do it. 9' is a free roller conveyor installed on both sides of the pallet extrusion device 4' in the axial direction (FIG. 8). The pallet 3' separated from below the transfer conveyor 2' is transferred toward the right in FIG. 7 by a drive roller 10' provided at a key point between the free roller conveyors 9' and sent to the curing process.

In such conventional devices, the pallet 3' swings left and right on the pallet extrusion device 4' because it is a push type, which is a guiding type that only pushes from the rear, and does not involve a means to advance the pallet in a straight line. easy. Furthermore, if the back surface of the pallet 3' becomes damaged and uneven due to repeated use, it will create frictional resistance on the free roller conveyor, making it difficult to move smoothly, or causing vertical vibration, which will further increase the runout. . When a molded product is transferred onto the pallet 3' in such a state, the molded product is transferred in a meandering manner, and when it is completely cured, it becomes a defective product that does not have a straight shape.

The present invention was made in view of the above-mentioned drawbacks.According to the present invention, a long uncured molded product extruded from an extruder, cut into predetermined lengths, and sent at regular intervals, From the top of the transfer conveyor,
A device for transferring onto a pallet fed by a pallet extrusion device disposed below the conveyor, wherein the pallet extrusion device has at least two rails disposed horizontally and The pallet is provided with a protrusion at the front end thereof and a clamping fluid pressure cylinder at the rear end opposite to the protrusion, and the pallet sent between the protrusion and the hydraulic cylinder is removably clamped and moved on the rail. A movable protrusion member that is pre-energized on the dolly is capable of protruding and retracting from the upper surface of the dolly in cooperation with a protrusion member actuating device fixed at a predetermined position outside the dolly. a rack formed and fixed to the truck over almost the entire length; a drive pinion for driving the rack in the molded article transfer direction and the opposite direction to reciprocate the truck; The present invention provides an apparatus for transferring uncured molded products, which comprises conveyor rollers disposed on both sides of the cart for receiving and delivering pallets from a truck.

Before explaining the device of the present invention, a device for transporting cut long uncured molded products at regular intervals will be described. This transfer device has been used conventionally, and the transfer device described with reference to FIG. 7 also has a device similar to this in the previous process.

As shown in FIG. 1, an uncured molded product 1 extruded from an extruder (not shown) is transported by a molded product cutting conveyor 2 arranged in series with a constant low speed feed, and a variable speed conveyor 2 with a variable speed switchable between low and high speed feed. It is transported on a conveyor 3 and a transfer conveyor 4 with a constant high speed feed. A free roller conveyor 5 is disposed between the conveyors 2 and 3 and between the conveyors 3 and 4, and a free roller conveyor 6 arranged in an inclined manner downstream of the conveyor 4 is disposed.

In FIG. 1A, conveyors 2 and 3 are fed at the same low speed, and conveyor 4 is fed at a constant high speed. The molded product 1 is cut 7 on a cutting conveyor 2 by a cutter (not shown) to form molded products 1a, 1b, etc. of a predetermined length, but the molded product 1 is spaced apart before and after the cut 7. do not have.

FIG. 1B shows a state in which the molded product 1a is being transferred from the conveyor 2 to the conveyor 3 at the same speed.

In Fig. 1C, when conveyor 3 is switched to the same high speed as conveyor 4, molded products 1a and 1 are formed at cut 7.
b is separated and the molded product 1a is transferred on the conveyor 3 as shown in FIG. 1D.

As shown in FIG. Then, repeat the above steps. The molded products 1 thus cut are sent onto a transfer conveyor 4 at regular intervals.

Embodiments of the present invention will be described below with reference to FIGS. 2 to 6. Figure 2 is a plan view of the device of the present invention;
FIG. 3 is a side view of FIG. 2. In addition, in FIG. 2, the transfer conveyor of FIG. 3 and the free roller conveyor of an inclined arrangement following it are omitted for clarity.

As shown in FIGS. 2 and 3, a pallet extrusion device 10 is installed below the above-mentioned transfer conveyor 4.
A transfer device is provided including a feed conveyor roller 30 and a feed conveyor roller 30.

The pallet extrusion device 10 is a foundation or fixed base 11
It has a frame 12 fixed on top, and a plurality of rails 13 are arranged in parallel on the frame 12 along the direction of transport of the molded product 1. A long rectangular cart 14 movable on the rails 13 is mounted. A protrusion 17 is formed at the front end of the cart 14 facing the transport direction 15 of the molded product 1 and serves as a stopper that comes into contact with the front end of the pallet 16 to be placed. A clamping fluid pressure cylinder 18 that presses the rear end of the clamp 16 in the transfer direction 15 is fixed. A rack 19 is fixed over almost the entire length of the lower surface of the truck 14, and the rack 19 is driven in the transport direction 15 of the molded product 1 and the opposite direction by a pinion 20 attached to the frame 12 and capable of forward and reverse driving. .

The above protrusion 17 will be explained with reference to FIG.

As shown in FIG. 4, a small-diameter hole 21 and a subsequent large-diameter hole 21A are bored in the front end of the truck 14 to penetrate the truck 14 vertically. A pin-shaped protrusion member 22 having a shaft portion substantially aligned with the small diameter hole 21 and a head portion 23 loosely engaged with the large diameter hole 21A is fitted into this through hole via a compression spring 24.
The periphery of the head 23 facing the opening of the large-diameter hole 21A is appropriately rounded. 25 is rail 13,1
A stationary cam member (protrusion member actuating device) is horizontally arranged between the two cam members, and most of its upper surface is in contact with the bottom surface of the truck 14, and a concave surface 25B is formed through an inclined surface 25A. Note that this concave surface 25B is formed near the right end of the frame 12 in FIG.

The sending conveyor roller 30 is a free roller 3
1 and a driving roller 32, and is disposed on both sides of the frame 12 at the level of the lower surface of the pallet 16.

In operation, as shown in FIG. 3A, the pallet 16 is supplied onto the truck 14 from the side of the pallet extrusion device, and is pressed against the protrusion 17 by the piston of the fluid pressure cylinder 18 and fixed. Upon receiving a signal that the molded product 1 has been sent onto the transfer conveyor 4, the pinion 20 is rotated by a motor (not shown).
The rack 19 is driven to receive the molded product 1 as shown in FIG. 3B.

While the truck 14 is translating along the rail, the spring 24 is compressed as shown in FIG. The upper part projects upward from the pallet receiving surface of the truck 14 to form a protrusion 17. When the truck 14 reaches the position shown in FIG. 3C, the spring 24 is stretched and the head 23 slides down along the inclined surface 25A of the cam member (projection member actuating device) and comes into contact with the concave surface 25B. At this time, the upper part of the protruding member 22 is completely submerged into the small diameter hole 21. Therefore, the leading end of the pallet 16 comes off the protrusion 17 and is delivered onto the conveyor roller 30. Incidentally, it is convenient to retract the piston of the clamping fluid pressure cylinder 18 immediately before the pallet 16 is separated from the protrusion 17 so that the feeding can be carried out smoothly. Thereafter, the pallet 16 on which the molded products are placed is transported to the next process, for example, a curing process.

In the state shown in FIG. 3C, the pinion 20 is reversed to send the truck 14 to the left in the figure, and the projection member 22 projects onto the truck 14 again, preparing for the next pallet to be supplied.

FIG. 5 shows another embodiment of the protrusion 17. In this case, the protrusion member 27 has a plate shape projecting on both sides of the truck 14, and the protrusion member 27 is attached to the tip of the truck 14.
A notch groove 26 corresponding to No. 7 and a blind hole 26A following the notch groove 26 are provided. The compression spring 28 is housed in the blind hole 26A. The protruding member 27 is a cam member (protruding member actuating device) 2 arranged horizontally on both sides of the trolley 14.
9 and slides into contact with the trolley 14 at a predetermined position. FIG. 5C is a view of FIG. 5A viewed in the flow direction.

Note that it is preferable that the protruding members 22 and 27 have rounded or tapered tips so that they can be smoothly protruded and retracted.

FIG. 6 shows another embodiment of the protrusion 17, in which a hole 33 is provided at the bottom of the front end of the truck 14, and an air cylinder 34 is installed inside the hole 33, so that the air cylinder is placed on the piston side (movable part side). A free roller-shaped protruding member 35 is formed on. This protruding member 35
It is formed so that it can protrude from the upper surface of the truck 14 through a through hole 36 aligned with 3. In this case, the protruding member operating device is, for example, a limit switch 37 fixed to the frame 12 between the rails 13, 13, and an air cylinder 34 operated by the limit switch via a control device (not shown). Therefore, when the truck 14 is in a predetermined position, the limit switch 37 is activated.
When stepped on, the protrusion member 35 can be retracted into the trolley 14 by the control device.

According to the present invention, the pallet is clamped to the cart by the protrusion and the fluid pressure cylinder, and the cart is moved along a plurality of rails. The unstable displacement of the molded product can be completely prevented, and therefore no defective products will be produced when the molded product is cured. Further, when the pallet is transferred to the delivery conveyor roller, a stationary cam member or a limit switch and an air cylinder are used to sink the protrusion into the carriage, so the structure is extremely simple.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of a device for transferring uncured products of a fixed length at intervals, Fig. 2 is a plan view showing an embodiment of the device for transferring uncured products of the present invention, and Fig. 3
The figure is a side view showing the operation of the device in Figure 2, and Figures 4 to 4.
FIG. 6 is a diagram showing embodiments of the protrusion, FIG. 7 is a side view of a conventional transfer device for uncured molded products, and FIG. 8 is a plan view of FIG. 7. DESCRIPTION OF SYMBOLS 1... Uncured molded product, 4... Transfer conveyor, 10... Pallet extrusion device, 13... Rail, 14... Cart, 15... Molded product transfer direction, 1
6...Pallet, 17...Protrusion, 18...Fluid pressure cylinder for clamp, 19...Rack, 20...
... Drive pinion, 22, 27, 35... Protrusion member, 25, 29, 34, 37... Protrusion member actuator, 30... Conveyor roller.

Claims (1)

[Scope of utility model registration request] The long uncured molded product 1 extruded from an extruder, cut into predetermined lengths, and sent at regular intervals is transferred from above a conveyor 4 to a pallet extrusion device disposed below the conveyor. 10, the pallet extrusion device 10 has at least two rails 13 arranged horizontally;
The pallet 16 is provided with a protrusion 17 at the front end in the molded product transfer direction 15 and a clamping hydraulic cylinder 18 at the rear end opposite to the protrusion, and the pallet 16 is fed between the protrusion 17 and the hydraulic cylinder 18. It is provided with a long cart 14 that can be removably clamped and movable on the rail 13, and the protrusion 17 is a movable protrusion member 2 that is biased in advance onto the cart 14.
2, 27, and 35 are formed so as to be able to protrude and retract from the upper surface of the truck 14 in cooperation with protrusion member actuating devices 25, 29, 34, and 37 fixed at predetermined positions outside the truck, and extend over almost the entire length of the truck 14. A fixed rack 19, a drive pinion 20 that drives the rack 19 in the molded product transfer direction and the opposite direction to reciprocate the truck 14, and are arranged on both sides of the truck 14 at the level of the lower surface of the pallet 16. hand,
A device for transferring uncured molded products, comprising a conveyor roller 30 for receiving and sending out pallets from a truck 14.