JPS6319412B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a stacking processing apparatus for molded sheets b, the purpose of which is to cut molded sheets molded by a resin molding machine and intermittently discharged into predetermined lengths and stack them. An upper conveyance path for transporting formed sheets molded by a forming device and sent out intermittently, and an extension of the upper conveyance path that supports continuously formed sheets sent to the upper conveyance path together with the upper conveyance path. A shutter device that can be freely controlled to open and close, and a sheet cutting device between the upper conveyance path and the shutter device are provided. a gripping member that grips the cut formed sheet on the shutter by negative pressure suction, descends to a lower conveyance path in relation to opening of the shutter device, and discharges the formed sheet onto the conveyance path; The present invention relates to a stacking processing device for molded products in a resin molding machine, which cuts molded resin molded sheets into appropriate lengths and stacks them on the starting end of a lower conveyance path.

A preferred embodiment of the invention will be described with reference to the accompanying drawings.

In FIG. 1, the resin molding machine is a stacking processing device.

In the resin molding machine of this embodiment, the edge edges on both sides of a long resin sheet a wound around a winding shaft 3 are attached to a frame 1.
The sheet a is gripped by a pair of well-known clamp chains 2 provided at the front, and is fed into the forming device 4 through a sheet heating device (not shown) by intermittent driving of the chains 2, and the sheet a is formed while the clamp chains 2 are stopped. , the formed sheet b is sent out to the upper conveyance path 5 at the end of the chain 2, which is a known structure. The molded sheet b of this example has a rectangular container,
Round cups and the like are formed in several rows in the sheet a feeding direction and in the width direction.

The stacking processing device is connected to the turning point of the clamp chain 2 in the upper transport path 5, that is, the end of the upper transport path 5, as shown in FIG. The road 5 is not extended to the tower-shaped machine frame 11.
A shutter device 16, which is an extension of the
A cutting device 15 consisting of a movable blade 14 and a movable blade 14 is provided.

As shown in FIGS. 2 and 3, the shutter device 16 includes a guide rod 17 provided in the width direction of the formed sheet b at a position that does not interfere with lowering the formed sheet b.
It is composed of a pair of two plates fixed to sliders 18, 18 fitted in the slider 17 and retracted as shown by the solid line in FIG. Controlled by

A starting end of a lower conveyance path 12 constituted by a conveyor belt is installed below the shutter device 16. The lower conveyance path 12 is stopped during the stacking process.

As shown in FIG. 2, the machine frame 11 has a first link 21 whose lower end is fitted into the front and rear shafts 20 of the upper member.
A horizontal gripping device frame 24 is attached to the lower end of the L-shaped piece 23 hanging from the shaft 22 at the upper end, and one end of the L-shaped lever 26 has a bent part fitted to a shaft 25 hanging from the front and back of the device frame. The shaft 27 supports a rectangular component 35 located on the shutter device 16, the other end of the L-shaped lever 26 is extended above the gripping device frame 24, and the other end of the shaft 28 is connected to the device frame. 2
The cylinder 29 is connected to a rod 30 of a cylinder 29 provided on the cylinder 4 so as to be swingable about a shaft 31.

A second link 32 protruding diagonally upward is fixed to one first link 21, and the second link 32 is axially connected to a rod 34 of a cylinder 33.

A suction port 36 is provided in the center of the gripping member 35,
Both upper and lower ends of the bellows 40 are attached to the suction port 36 and the suction port 39 of the suction tower 38 supported by a support 37 erected on the upper member of the machine frame 11. The suction tower 38 has a suction fan 42 driven by a motor 41.
A plurality of suction force adjustment valves 43 are provided. Each of the above-mentioned parts is an example of the negative pressure suction device of the present invention.

The cylinder 33 is swingably supported by a shaft 44 on one support 37.

To explain the operation of this embodiment, the formed sheet b is sent to the upper conveyance path 5 by the clamp chain 2 by the forming device 4, and when performing this feeding operation, the shutter device 16 is used.
closes as shown by the solid line in FIG.
6 and is sent out and stops. Simultaneously with that stop, the movable blade 14 of the cutting device 15 descends to cut the formed sheet b, and at the same time, the cylinder 29
When the cylinder 29 is contracted, the gripping member 35 is lowered onto the shutter device 16 via the L-shaped lever 26 as shown in FIG. The formed sheet b is adsorbed as shown in the figure by the negative pressure generated, and at the same time, the shutter device 16
The lower transport path 1 is opened as shown in the chain line in Figure 3.
2 Open the top.

Almost simultaneously, the cylinder 33 is driven to retract, lowering the gripper frame 24 via the second link 32 and the first link 21, as shown in FIG. Therefore, the apparatus frame 24 swings to the right in FIG. 2 together with the gripping member 35 and descends, causing the formed sheet b to swing slightly to the right. At the same time as the posture shown in FIG. 6 is achieved, the suction force adjustment valve 43 is closed, and the formed sheets b etc. gripped by the gripping member 35 are automatically dropped into the lower conveyance path 12 by their own weight and stacked. If necessary, pressurized air is fed into the suction cylinder 38 below the suction force adjustment valve 43. Since the lower conveyance path 12 is constituted by a conveyor belt, when the number of fallen formed sheets b reaches a certain number, the formed sheets b are conveyed to the right in FIG.

The above-described one-cycle operation of this embodiment includes the molding operation of the molding device 4 and the clamp chain 2.
synchronizes the intermittent drive and stop of the
After the formed sheet b is dropped onto the lower conveyance path 12, the cylinders 33 and 29 extend and return as shown in FIG. 2, and the cylinders 19 and 19 close the shutter device 16 as shown in solid lines in FIG. Then, the molded sheet b is prepared for being sent out onto the shutter device 16 from the upper discharge path 5.

In the present invention, the molded sheet b sent to the upper conveyance path 5 at the end of the resin molding machine is moved to the shutter device 16 which forms an extension of the conveyance path, and is cut by the sheet cutting device 15. The sheet is cut to a predetermined length, and at that time, the cover-shaped gripping device 35 is lowered onto the molded sheet b to cover it, the sheet b is sucked up by the negative pressure suction device, the shutter device 16 is opened, and the sheet b is then gripped. The device 35 is lowered onto the starting end of the lower conveyance path 12, and during its descent, the negative pressure suction is interrupted and the device 35 is allowed to fall, thereby automatically stacking the formed sheets without any disturbance.

[Brief explanation of the drawing]

The attached drawings show one embodiment of the present invention, with Fig. 1 being a schematic front view, Fig. 2 being a front view of the main parts, Fig. 3 being a partially cutaway side view, and Figs. 4 to 6 explaining the operation. It is a front view. → Resin molding machine, → Processing device, 5 → Upper discharge path, 11 → Machine frame, 12 → Lower conveyance path, 16 → Shutter device, 21 → First link, 29 → Cylinder, 32 → Second link, 33 → Cylinder ,35→
Gripping member, 38 → suction path.

Claims (1)

[Claims] 1. An upper conveyance path for transporting formed sheets formed by a forming device and sent out intermittently, and an extension of the upper conveyance path that supports continuous formed sheets sent to the upper conveyance path together with the upper conveyance path. A shutter device that can be freely controlled to open and close, a sheet cutting device between the upper transport path and the shutter device, a lower transport path with the lower side of the shutter device as the starting end, and a sheet cutting device that descends onto the closed shutter device to cut the sheet. The gripping device is equipped with a vertically movable cover-shaped gripping device that covers the formed sheet, and a negative pressure suction device that communicates with the inside of the gripping device, and the gripping device is lowered onto the closed shutter device. The formed sheet on the shutter is sucked by driving the negative pressure suction device, and as the shutter device is opened, the gripping device is lowered to the lower conveyance path, and the negative pressure suction device is deactivated to remove the formed sheet. A stacking processing device for molded sheets in a resin molding machine, characterized in that the sheets are stacked on the starting end of the conveyance path.