JPS6122801Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a newly developed flexible container with a flange frame attached to the periphery of the upper opening, which is transported under the input port of a weighing device to package powder, granular or flake-like products. This invention relates to an automatic container mouth closing device for automatic packaging equipment.

An application has already been filed for an automatic packaging device that supplies and packages 500 kg to 1 ton of powder, granule or flake products into newly developed containers fitted with flange frames (Japanese Patent Application No. 81590/1983).
issue). However, in the automatic packaging apparatus of this application, it was not possible to close the flange frame with 100% certainty after filling was completed.

This invention was made with the aim of eliminating such drawbacks and providing a container mouth closing device that can be 100% closed, and is a new device that has a flange frame attached to the periphery of the opening of a container that has a flexible input opening. The developed container is transported to the object to be weighed input port of the weighing device, and after the container is filled with the object to be weighed, the center of the flange frame is pressed with a presser claw and folded. .

Hereinafter, the present invention will be explained based on embodiments shown in the drawings.

An empty container supply board A that rises to a predetermined position via a hoisting wire 2 is installed on the side surface of the two beams 1, 1 supported in parallel, and a flange of the container B is installed on the top of the beams 1, 1. A conveying device C (for example, a roller chain) on a smooth surface that supports and conveys both ends of the frame 3 and enables pooling of a plurality of containers B is located near the object to be weighed input port of the weighing device described later. A delivery device E is installed parallel to the conveyance device C to deliver the container B onto the container opening closing panel D directly below the object to be weighed input port 4.

A flange frame 3 is provided near the terminal end of the conveying device C.
A second movable stopper 7 for locking the flange frame 3 is provided, and a first movable stopper 8 for locking the flange frame 3 is also provided midway from the front and rear ends of the conveying device C. Furthermore, a weighing device F having an object to be weighed input port 4 at the lower part is installed on the container opening closing board D, and a transport roller conveyor 9 is installed below the closing board D, respectively.

The empty container supply board A described above includes a frame 10 on which the flange frame 3 of the container B is placed, and a roller 11 that moves the frame 10.
A pillar 12 supported via a hoisting wire 2 with one end connected to the empty container supply cylinder 13 and the other end connected to the frame 10 and the frame 10
The empty container feeding frame 14 feeds the frame body 10 onto the roller chain of the conveying device C when the frame body 10 rises and reaches a predetermined position. Note that 15 is a cylinder for moving the empty container feeding frame 14.

What is shown in FIGS. 1 and 2 is the details of the conveying device C, which is constructed by winding a roller chain 17 with a smooth surface or a belt endlessly between a driving wheel 16a and a driven wheel 16b (see the example). ), the container B with the flange frame 3 is transported to the vicinity of the object to be weighed input port 4, and the flange locked to the first and second movable stoppers 7 and 8 during transport. The frame 3 is stopped by slipping at the locking position without stopping the rotation of the roller chain 17. Note that 18 is a motor for rotating the drive wheel 16a.

Also shown in FIGS. 1 and 2 are details of the flange frame (empty container) delivery device E, which clamps the flange frame 3 arranged parallel to the roller chain 17 from the left and right sides to close the container mouth. It is composed of a delivery board 19 that delivers the delivery to the top of the board D, and a delivery cylinder 24 that moves the delivery board 19 back and forth to a predetermined position.

What is shown in FIG. 3 is the details of the container mouth closing board D. Reference numerals 25a and 25b are a pair of closing plates fixed to a U-shaped frame. A driving gear 27a and a driven gear 27b are attached to the front side, and a pair of driven wheels 29, 2 are attached to the left and right bottom of the front side via the shaft rod 28.
9 is installed. Note that the closing plates 25a, 25
If the surface of b is smooth, it can be easily moved.
Reference numeral 30 denotes a cylinder 31 for rotating the driving gear 27a, which is a holding pawl for the flange frame 3 on the closing plates 25a and 25b, and the holding pawl 31 is connected to the driven wheel 27b via an arm 32 which is supported off-center. Connect with.

What is shown in FIG. 1 is the details of the weighing object loading device F, where 32 is a frame supported by the upper pillars of the beams 1, 1, and 33 is a loading object supported by the frame 32. reference numeral 34 is a telescopic outer body covering the outer periphery of the chute, 35 is an input conduit attached to the lower part of the extensible outer body, 36 is a frame attached to the lower end of the input conduit, and 37 is the frame. This is an arm for holding the flange frame 3 installed on the left and right sides of the body, and when the rod of the cylinder 38 for lifting and lowering the container opening rises to raise the empty container closing device D to the holding position, the arm 37 connects with the cam ( (not shown) rotates and clamps the flange frame 3.

Since the container mouth (flange frame) closing device according to this invention has the above-described structure, first, the flange frame 3 of the container B is attached to the frame 10 and lifted up, and then the container feeding frame 14 is connected to the conveying device C. If you put it on roller chain 17, this roller chain 1
7, the container B is conveyed to its terminal end, and the frame 3 is stopped from moving by the second movable stopper 7, which is in the closed state, and enters a standby state. Under this condition, the flange frame 3 is stopped in a slip state relative to the movement of the roller chain 17. Then, the flange frame 3 is lifted up and the roller chain 1 is
7, the container B is moved by the movement of the roller chain 17, and the frame 3... is prevented from moving by the first movable stopper 8, which is closed in response to a signal of passage of the first container B. It is stopped and becomes a standby state. Even under this condition, the flange frames 3... are stopped in a slipped state and pooled in the same manner as described above. When the flange frame delivery device E presses the flange frame 3 of the first container B from left and right and starts moving toward the container mouth closing D, the second
An opening/closing cam (not shown) of the stepped movable stopper 7 rotates to open the stopper 7. The sending device E
moves as it is and sends the container B onto the container mouth closing device D. The delivery device E then returns to its original position and rotates the opening/closing cam to close the second movable stopper 7, and the delivery device E The first movable stopper 8 opens in response to the return signal, and when one of the waiting containers B (second container) passes over a detection switch (not shown), the first movable stopper 8 opens.
Close. Container B (second container) that passed through
is stopped by the second movable stopper 7 during closing, and when the first container B sent earlier is filled with the object to be weighed and the container B is moved from above the container mouth closing device D, a signal indicating the movement is received. As described above, the delivery device E presses the flange frame 3 of the second container from the left and right sides and sends it onto the container mouth closing device D. Thereafter, similar operations are repeated one after another.

As mentioned above, when the flange frame 3 is fed onto the container closing device D, the operation start signal for the weighing object loading device E and the weighing device (not shown) is output during the return stroke of the feeding device, so that the container opening is raised and lowered. The cylinder 38 is lowered, a cam (not shown) is engaged, and the flange frame 3 is held between the arms 37, 37, and the object to be weighed is placed in the container B by the weighing device after a set period of time has elapsed. Injected. Then, after a certain period of time has elapsed from the start of charging to the end of charging, the flange frame holding arms 37, 7 are opened, and the cylinder 38 for lifting and lowering the container opening starts to rise, and the cams (not shown) connected to the arms 37, 37 are disengaged, causing the flange frame to open. 3 is released from the arms 37, 37. Then, upon receiving the signal to open the arms 37, 37, the rotation cylinder 30 starts operating as shown in FIGS. 3 and 5, and rotates the drive gear 27a. When the gear 27a rotates, the engaged driven gear 27b rotates, and the front driven gears 29, 29 also rotate. At this time, since the pawl 31 holding down the center of the flange frame 3 is eccentrically connected to the driven gear 27b, it moves upward around the fulcrum slightly behind the rotation of the gear 27b, so that the closing plate 25a , 25b becomes slightly doglegged, and the flange frame 3
Press it down until it bends slightly into a dogleg shape.
In this way, the closing plates 25a, 25b and the flange frame 3
Since the container B is pressed down until it forms a slight dogleg shape, even if the container B is strong as shown in Fig. 6, the flange frame 3 cannot be bent as shown in Fig. 6B. Moreover, as shown in FIG. 7, the flange frame 3 does not become inverted and cannot be closed. The pair of closing plates 25a, 25b rotate inwardly due to the rotation of the four gears described above, and completely close the flange frame 3. When this occlusion is completed, the occlusion plate 2
5a and 25b are open and closed flange frames 3
falls downward under its own weight, and the filled container B moves toward the exit on the roller conveyor 9 installed at an angle. Note that the above-described steps of sending out the empty container B, filling it with objects to be measured, and closing the flange frame 3 are repeated in sequence. Further, the flange frame 3 of the container B described above is bendable from the center as shown in FIG.

According to the present invention, since it has the above-mentioned configuration, the flange frame can be reliably closed (100 kg), and the filling operation can be performed efficiently.

[Brief explanation of the drawing]

FIG. 1 is a front view of an automatic packaging machine according to the present invention, FIG. 2 is a perspective view of essential parts, FIG. 3 is a perspective view of a container closing device, FIG. 4 is a front view of the container closing device, and FIG. 5 is an explanatory diagram showing the operating state of the closing plate, FIG. 6 is an explanatory diagram showing the state of the flange frame when the container is stiff,
FIG. 7 is an explanatory view of the flange frame in an inverted dogleg shape, and FIG. 8 is a perspective view showing an embodiment of the container according to the present invention. 1... Empty container supply board, B... Container, C... Transfer device, D... Container mouth (flange frame 3) closing device,
E... Sending device, F... Device to be weighed, 3...
...flange frame, 4...object to be weighed input port, 25a...
...Closure plate, 25b...Closure plate, 26... Axis rod, 2
7a...driving gear, 27b...driven gear, 28...
... shaft rod, 29, 29 ... driven gear, 30 ... rotating cylinder, 31 ... presser claw, 32 ... arm.

Claims (1)

[Claim for Utility Model Registration] A pair of frames that can be folded freely around a bend in the center are attached to the periphery of the opening of a container having a flexible input opening, and both sides of the frames are transported. The object to be weighed is supported by the device and transported to a closing board that can be freely folded around the bent part in the center similar to the frame section, which is disposed directly under the object to be weighed input port, and the object to be weighed is filled into the container. A container mouth closing device for an automatic packaging device in which a pair of frame portions are folded by a folding closing plate after the folding and closing plate is folded, includes a closing mechanism for closing left and right closing plates constituting the folding closing plate, and a closing operation of the closing mechanism. The holding mechanism includes a pawl that presses down the center portions of the pair of interlocking frame portions, and a presser pawl that interlocks with the closing operation, which presses the center portions of the pair of frame portions so that the frame portions and the folding closing board are slightly mutually separated. 1. A container opening closing device for an automatic packaging device, characterized by a mechanism that continues the pressing operation until the container is bent into a dogleg shape, and then retreats to a position where it does not interfere with the closing operation.