JPS5944241B2 - automatic packaging machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention is a method of opening six boxes in a carp-shaped manner by pressing both sides of a box, which has lids at both ends of the upper and lower walls, toward the center. This invention relates to an automatic packaging machine that packs six products by placing the products inside and folding the lids that are continuous at both ends of the six boxes.

The structure of the automatic packaging machine according to the present invention will be explained below with reference to drawings of embodiments. Reference numeral 1 denotes a product transfer conveyor in which a pair of product holding plates 1F and 1A are attached at regular intervals P;
is rotated intermittently so as to stop for a certain period of time at each mounting portion of the holding plates 1F and 1A.

Reference numeral 2 denotes a box unloading device which is arranged in parallel from the bottom to the rear of the box storage body 3 provided on the side of the intermediate portion of the transfer conveyor 1. 6 The box storage body 3 includes vertically and horizontally aligned pieces 31 and 32 of the boxes B, and a cam 35. It consists of a support leg 33 that can be opened and closed by the support leg 33, and claws 34 provided at the lower end of the support leg 33 are engaged with the bottom of both sides of the lowermost box B1, and the box extractor 2 is held by the claws 34 of the support leg 33. A rod 24 supports the center part of the lowermost box B from below.
It has a suction part 25 that curves in an arch by sucking both ends of the lowermost box B1 supported by the support leg 33 or the support leg 33 downward. After being removed from the box B1, it is activated to bend both ends of the box B1 downward, and the opened support legs 33 bend the lowermost box B in an arc shape with the suction part 25, and then return. Bottom box B1 curved in an arc shape
The claw 34 of the support leg 33 is inserted between the box B2 and the next box B2 to support the next box B2.

In addition, the box unloading device 2 includes a box guide rail 23 extending parallel to the transfer conveyor 1 from both sides of a rod 24 provided below the storage body 3, and a first box guide rail 23 extending below the storage body 3. A feed conveyor 21 and a second feed conveyor 2 stretched rearward from above the rear part of the first feed conveyor 21
2, the 6-car feed conveyors 21 and 22 are provided with protruding claws 21R and 22R that lock onto the boxes B, respectively, and both feed conveyors 21 and 22 are continuously rotated in synchronization, so that the first feed conveyor 21 Both sides and ends of the lowermost box B1, which has been bent into an arc by the suction part 25, are locked with the protruding claws 21B, and the box B1 is taken out from the storage body 3 toward the rear on the rail 23, and then The box B1 taken out by the conveyor 21 is successively transferred rearward by the prongs 22R of the second feeding conveyor 22. Reference numeral 4 denotes an opening device for the box B provided behind the second feeding conveyor 22 of the box unloading device 2. It consists of a lower suction body 42 that attracts the lower side of the guide rail 2.
3 or 6 or a little lower than that, and receives the box B transferred from the guide rail 23, and receives the box B transferred onto the lower suction body 42 by lowering the upper suction body 41 from above and below. Clamping. As it moves downward while being held in place, the top wall number of box B is moved upward while descending. The lower wall is suctioned downward, and the upper suction body 41 and the lower suction body 42 are at the bottom dead center. Box B, which had been folded twice apart, is opened in the shape of a carp.

Reference numeral 5 denotes a box transport conveyor which extends rearward in parallel with the transfer conveyor 1 from below the opening device 4, and the conveyor 5 rotates intermittently in synchronization with the transfer conveyor 1. The locking claws 5F and 5A of the box B opened by the upper and lower suction bodies 41 and 42 of the opening device 4 are attached to positions parallel to the pair of holding plates 1F and 1A that are attached to the opening device 4 each time the conveyor 5 stops. On the rear side of the pair of locking claws 5F and 5A. As shown in FIG. 4, the driving gear 50 of the conveyor 5 is still
so that the width between the locking claws 5F and 5A is wider than the width of the box B in the open state below the opening device 4, and the width between the locking claws 5F' and 5A' in the horizontally lying position, In addition, it is arranged so that when it is in the horizontal state, it is slightly narrower than the force of the box B in the 6-open state.

In addition, each attachment part of the locking claws 5F and 5A of the conveyor 5 has a
If the box B is a product, a locking piece 52 is pivotally supported and is held in an open state by the locking claws 5F, 5A. When the filling position X is reached, a cam (not shown) pushes both sides of box B, which is tilted inward from a pair of opposing locking claws 5F and 5A, further inward to open it. is made larger to facilitate the transfer of the product X into the box B and to return to its original state before the conveyor 5 rotates. Reference numeral 6 denotes a product stuffing device that straddles the rear part of the transfer conveyor 1 and the transfer conveyor 5 that is parallel to the transfer conveyor 1. A product transfer body 61 that
A transfer stop body 62 that reciprocates toward the transfer conveyor 1 from the outside of the transfer conveyor 5 is provided, and the transfer body 61 and the stop body 62
is fitted into a horizontal rod 63 installed across the tops of both conveyors 1 and 5, and reciprocates relative to each other. It is slid by the movement mechanism 64. The product X transferred by the holding plates 1F and 1A of the transfer conveyor 1 is transferred into the box B opened by the locking piece 52 of the transfer conveyor 5.

Reference numeral 7 denotes a folding device for the box lid b provided on both sides of the rear portion of the conveyor 5. A folding portion 72 of the top cover b continuous to both ends of the wall'. and a finished part 73 of the folded lid B, b/. The lids B and b', which are arranged in order in the transport direction of the box B and are continuous with the upper and lower walls 1 and 2 of the box B, are sequentially folded along the folding line C.

8 is a date stamping device provided in the middle of the first feeding conveyor 21.

Since the automatic packaging machine of the present invention has the above-mentioned structure, in order to automatically package product Holding plate 1F, 1 of transfer conveyor 1 driven by
When the products X are sequentially supplied onto A, the products X supplied to the transfer conveyor 1 are intermittently moved in the backward direction of the arrow while being maintained at a constant interval P. On the other hand, the boxes B stacked in the storage body 3 are placed with the opening side facing the transfer conveyor 1 side, and both edges of the lowermost box B have claws 34 on support legs 33 that are opened and closed by cams 25. Along with being placed on top. The central part of the box B is supported from below by the rod 24 of the box extracting device 2, and while the claws 34 of the support legs 33 are removed from the box B1, the suction unit 25 pulls both ends of the box B into the fifth position. As shown in the figure, the support legs 33 that had come off after the box B1 was bent are returned to lock the next box B2, while the two ends of one side of the bent box B1 are , the protruding pawl 21R of the first feed conveyor 21, which is continuously rotating rearward below the storage body 3, is engaged, and the lowermost box B1 is taken out from the storage body 3 onto the rail 23. The box B taken out onto the rail 23 is transferred to the first feeding conveyor 2.
1, the opening is continuously transferred rearward by the prongs 22R of the second feed conveyor 22 that is interlocked with the first feed conveyor 21, and is raised to the extension line position of the guide rail 23. It is fed into the upper part of the lower suction body 42 of the device 4. The box B sent into the upper part of the lower suction body 45 is. After being clamped by the lowering of the upper suction body 41, the upper wall of the 6 box B is moved upward and the lower wall of the 6 box B is moved upward while descending toward the transport conveyor 5 which is rotating intermittently below the 6 opening device 4. Suction f' downward and open the carp mouth.

When the box B descends while being opened by the opening device 4, the rear locking pawl 5A is still attached to the drive gear 50 while the transport conveyor 5, which rotates intermittently in synchronization with the transport conveyor 1, is stopped.
It enters between the locking claws 5F and 5A which are in the upper position and in the open state. The conveyor 5 rotates intermittently by 1 pitch after stopping for a certain period of time. It is held between the locking claws 5F and 5A which are in a horizontal state rather than an open state. While the box B being moved by the transport conveyor 5 in an open state and the product X being transferred by the transport conveyor 1 reach the product packing position and stop, first each locking claw of the transport conveyor 5 is closed. After the locking pieces 52 provided at 5F and 5A are tilted inward by the cams to the inside of the locking claws 5F and 5A, and the box B held by the locking claws 5F and 5A is further opened. , the transfer body 61 and the locking body 62 of the product stuffing device 6 operate so that they approach each other from the separated state, and the product X held on the transfer conveyor 1 is moved to the outside of the transfer comparator 1. With the transfer body 61,
At the same time, the box B is pushed into the box B opened by the locking piece 52 of the conveyor 5, and at the same time, the stopper 62 located outside the conveyor 5 is used. The product X transferred from a transfer conveyor 1 is prevented from jumping out of the box B, and the product X is transferred and stored in 6 boxes B. Next, the transfer body 61 and the transfer stop body 6
2 is operated in the direction away from the box B, the locking piece 6 is returned to its original position, and the stuffing operation of the product X is completed. The box B containing the product The lids B and b' continuous to both ends of the upper and lower walls 5 are sequentially folded to complete the packaging of the product X. Therefore, if the automatic packaging machine of the present invention is used, it is possible to store two or more containers by simply replenishing the container from time to time with boxes having continuous upper and lower walls on both sides and lids at both ends, and continuously feeding the products to the transfer conveyor. The boxes loaded in the box are first taken out one by one from the bottom by a take-out device, and then opened in a carp-mouth position by an opening device installed at the rear of the take-out device. The product is held in the open state on the transport conveyor, moves intermittently in synchronization with the transport conveyor holding the product, and when it reaches the 6-stuffing position, the product held on the transport conveyor is transferred from the stuffing device to the transport conveyor. This type of packaging work is greatly simplified because the entire process is automated, from transferring the product to the open-open box that is being held and sequentially folding the lid of the box filled with the product using a folding device. It is possible to simplify the process and dramatically improve work efficiency. Moreover, the conveyor is provided with a locking pawl that holds the box open and a locking piece that slopes inward from the locking pawl at the product loading position, and the pair of locking pawls are connected to the opening device. When located in the lowering space of 6, the distance between the locking claws is wider than the width of the box in the open position, and when facing the horizontal position, it is narrower than the width of the box in the open position. Therefore, the box held by the opening device can be easily locked, and the box can be opened even wider by tilting the locking piece inward from the locking claw at the six-product loading position. Therefore, the automatic packaging machine according to the present invention has a remarkable effect in practical use, as well as features of easy handling such as making it easy to pack products.

[Brief explanation of the drawing]

1 and 2 are a plan view and a front view showing the structure of the main parts of the automatic packaging machine of the present invention, and FIG. 3 is a front view showing the structure of the main parts of the box removal device provided between the storage body and the opening device. Figure 4 is a front view showing the front structure of the conveyor; Figure 5 is a side view showing the relationship between the storage body and the take-out device; Figures 6 and 7 are plan views showing the structure of the main parts of the product stuffing device. The front view and FIG. 8 are longitudinal sectional views of the box showing how the product is packaged. 1...Product transfer conveyor 61F, 1A...
・・Holding plate 62 ・・・Box unloading device, 21, 21R
...the first feed conveyor and the prongs 62 of the conveyor
2, 22R... Second feed conveyor and prongs of the conveyor, 23... Box guide rail, 24...
... Rod body, 25 ... Suction part, 3 ... Box storage body, 31, 32 ... Vertical and horizontal alignment pieces, 33, 3
4...Support leg and its claw, 35...Cam 64...Box opening device. 41... Upper suction body, 42... Lower suction body, 5... Box conveyor, 50... - Drive gear, 5F, 5
A, 5F', 5N...Latching claw 252...
・Latching piece. 6...Product stuffing device, 61...
...Product transfer body, 62...Transfer stop body 663.
... Horizontal rod 264 ... Quick return movement mechanism 67 ... Lid folding device, 71, 72 ...
... Lid folding part of upper and lower walls of box, 73 ... Finished part, 8
...Tasuke stamping device, B...Box, B,,B
2...Bottom box and next box,',-F. '...
... Upper and lower walls 6b, b' of the box... Lid of the box.
C... Folding line 6P... Holding interval between product and box, X... Product.

Claims (1)

[Scope of Claims] 1. A storage body 3 in which boxes B are stacked with the opening side facing the transfer conveyor on the side of the intermediate portion of the transfer conveyor 1 which holds the products X at regular intervals P and rotates intermittently; A box unloading device 2 that takes out the boxes one by one from the bottom of the storage body towards the rear, and an opening device 4 for opening the boxes that are taken out at the rear thereof are provided, and the opening device 4 moves the boxes from below the opening device toward the rear intermittently in synchronization with the transfer conveyor. The rotating transport conveyors 5 are arranged in parallel, and the conveyors 5 are provided with locks 5F and 5A that hold the boxes opened by the opening device in a wider open state, and locking claws 52 that are pivotally supported on the locking claws, A product stuffing device 6 is provided that straddles the rear of the moving conveyor and the transfer conveyor, and transfers the products sent by the transfer conveyor into an open box held by the transfer conveyor. Folding devices 7 for box lids b and b are arranged on both sides of the rear conveyor, and among these, the box unloading device 2 is used to fold the storage bodies 3
A rod body 24 supports the center part of the lowest box B1 stacked in the box B1 from below, a guide rail 23 is installed parallel to the transfer conveyor 1 behind both sides of the rod body, and both ends of the box B1 are supported from below. The first feeding conveyor 21 is composed of a suction section 25 that curves in an arc shape by suctioning the box, and takes out the curved box from the lower part of the storage section to the rear on the guide rail 23, and the rear part of the first conveyor 21. A second conveyor 22 is provided rearward from the top to continuously transport the boxes taken out by the first conveyor 21 to the rear. An automatic packaging machine which uses a suction body to suck the upper wall f of the box upward and the lower walls f' downward to open the box in the shape of a carp mouth. 2. On the side of the middle part of the transfer conveyor 1, which holds the product A box unloading device 2 that takes out the boxes one by one toward the rear, and an opening device 4 for opening the removed boxes are provided behind the box unloading device 2, and conveyance is rotated intermittently in synchronization with the transfer conveyor from below the opening device toward the rear. A locking claw 5F that arranges the conveyors 5 in parallel and holds the boxes opened by the opening device on the conveyor 5 with an even larger opening;
5A and a locking piece 52 that is pivotally supported on a locking pawl, the box in an open state is placed astride the rear part of the moving conveyor and the transport conveyor, and the product sent by the transport conveyor is held in the open state by the transport conveyor. A product stuffing device 6 is installed to transfer the products into the container, and folding devices 7 for box lids b and b' are arranged on both sides of the conveyor behind the stuffing device. After tilting the locking piece 52 of the conveyor 5 inward to open the box B held in the open state by the locking claws 5F and 5A even wider, the transfer body 61 is inserted into the horizontal rod 63.
The product
is transferred into the open box held on the conveyor, and the folding device 7 folds the folding part 71 of the lower box lid b', the folding part 72 of the upper box lid b, and the folded box lid. This automatic packaging machine consists of a finishing section 73, which are arranged in order to continuously fold the box lid.