JPH0514036U - Case loading device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a case loading device capable of improving the efficiency of the work by saving labor of the loading of the transport case in which the products and products are stored. [Structure] By moving up and down the elevating and lowering conveyor of the case stacker to sequentially lift the containers for one stage supplied from the supply conveyor, and at the same time, hold the bottommost container, which is lifted by the elevating and lowering conveyor, horizontally with a pair of holding arms. Hold in order and stack in 5 stages. After that, a group of 5 rows of 1 row of containers is supplied onto the loading conveyor, the loading pusher of the case loader is operated, and 1 row of the pallet is intermittently fed by the transportation conveyor. By loading the container groups in sequence, it is possible to save the labor and work of lifting a heavy container containing the product to a high place, and to load the transport case such as the container or box on the pallet. Easy to do.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a case loading device used for loading a transportation case such as a synthetic resin container or a cardboard box on a pallet.

[0002]

[Prior Art]

 Conventionally, as a method of loading a transportation case such as the above example on a pallet, for example, a transportation case in which products such as mandarin oranges are stored is held by an operator and prepared in advance at a loading position. There is a method of sequentially stacking transport cases on a pallet.

[0003]

[Problems to be solved by the device]

 However, as described above, since a large number of transport cases in which products are stored are sequentially stacked one by one by a worker, there is a problem that the stacking work of transport cases takes time and time. ing. In addition, the stacking position of the transport cases stacked on the pallet gradually increases according to the number of stacking stages of the transport cases, so that the heavy transport case containing the products is moved from the low position to the high position. It has to be lifted, and as the number of times of work for lifting the carrying case increases, the fatigue of the worker increases, and the work capacity and work efficiency decrease.

In view of the above problems, the present invention is capable of mechanically loading the transportation cases by stacking the transportation cases in a predetermined number of stages and then loading the transportation cases on the pallet, thereby saving labor and improving efficiency. An object of the present invention is to provide a case loading device that can perform

[0005]

[Means for Solving the Problems]

 This invention is provided with a case lifting means for lifting a carrying case for one stage, which is carried by the shipping conveyor, in the stacking direction on the carrying path of the shipping conveyor, and is lifted by the case lifting means. Case holding means for holding the lowermost carrying case in a horizontal posture is provided, and case loading means for loading the carrying cases stacked in a predetermined number of stages on the pallet by the stacking operation of the case lifting means and the case holding means. It is a case loading device provided with.

[0006]

[Action]

 In the case loading device of the present invention, the case lifting means is driven to sequentially lift the carrying cases of one stage conveyed by the unloading conveyor in the stacking direction, and at the same time, the case holding means is driven. The lowermost carrying case, which is lifted by the case lifting means, is sequentially held in a horizontal posture and stacked in a predetermined number of steps. After that, the holding of the carrying case by the case holding means is released, and the case loading means is driven to sequentially load the carrying cases stacked in a predetermined number of stages on the pallet all at once.

[0007]

[Effect of the device]

 According to this invention, since the carrying cases conveyed by the unloading conveyor are sequentially lifted to a predetermined height and stacked, a large number of carrying cases can be stacked one by one by a worker as in the conventional example. It is possible to perform the stacking work of the transport cases mechanically, and to stack the transport cases in a predetermined number of stages and then to load them all at once on the pallet, which allows manual loading work by workers. It is not necessary and can save labor and improve efficiency of loading work.

[0008]

【Example】

 1 and 2 show a case loading device 1 of the first embodiment used for loading a container a made of a synthetic resin on a pallet P as an example of a carrying case. The case loading device 1 is a product A case stacker in which containers a containing (for example, mandarin oranges, persimmons, etc.) are sequentially placed on the supply conveyor 2 arranged on the lower side, and arranged at the end of the supply conveyor 2 on the conveying side. The containers a and a are conveyed and supplied to the container 3. The case stacker 3 is driven to sequentially lift the containers a and a for one row to a predetermined height and stack them in the upper and lower five tiers, respectively, and then the container group A for one row stacked in five tiers. , A are conveyed and supplied onto the loading conveyor 4 arranged on the upper side. By driving the case loading machine 5 arranged above the loading conveyor 4, the container groups A and A for one row are sequentially loaded on the pallet P which is conveyed and supplied to the loading position on the transportation conveyor 6. It is a device to be embedded.

The above-described supply conveyor 2 is provided with a stopper 2a at a stop position set on the transfer path of the supply conveyor 2 so as to face the bottom of the front surface of the container a conveyed to the same position and to be retractable. ing. That is, the stopper 2a is projected onto the transport surface to stop the transport of the subsequent container a, and the stopper 2a is retracted below the transport surface to move the two containers a and a to the elevator conveyor 7 of the case stacker 3 described later. Transport and supply on top.

As shown in FIG. 3 and FIG. 4, the case stacking machine 3 described above has an elevating frame 8 on one side of an elevating conveyor 7 formed to have a size for placing one row of containers a 1, a. The guide rollers 9, which are vertically fixed and pivotally supported on both side ends of the lifting frame 8, are engaged with guide rails 10, 10 installed on the same side, respectively. The piston rod 11 is connected and fixed to the elevating frame 8, and by the operation of the elevating cylinder 11, the descending position which is horizontal to the supply conveyor 2 arranged on the lower side and the loading conveyor arranged on the upper side. The elevating conveyor 7 is stopped to move up and down to a level position where it is horizontal with the conveyor 4.

At the raised position of the elevator conveyor 7, a pair of holding arms 12, 12 is rotatably supported so as to face both side surfaces of the containers a, a placed on the elevator conveyor 7. Then, the piston rods of the holding cylinders 13 and 13 arranged on both upper sides of the same position are connected and fixed to the holding arms 12 and 12, and the holding cylinders 13 and 13 are synchronized with each other to be mounted on the lifting conveyor 7. The pair of holding arms 12 and 12 are rotationally stopped at a closed position for holding the placed containers a and a in a horizontal posture and an open position for releasing the holding and fixing. In addition, stacking guides 14 and 14 are erected at both side positions of the containers a and a which are horizontally held by the holding cylinders 13 and 13, respectively, and a stacking guide 15 is erected at a rear position thereof. ..

As shown in FIGS. 1, 2 and 5, the above-mentioned case loader 5 has traveling guides 16 and 16 installed on both sides above the loading conveyor 4 in parallel with the loading direction, The loading unit 17 is mounted on the travel guides 16 and 16 so as to be slidable forward and backward, and the travel chain 19 is stretched between the sprocket wheels 18 and 18 axially supported at the travel-side start end and the travel-side end. The driving chain 20 is provided in the upper part of the side to drive the traveling chain 20 through the sprockets 21 and 22 and the chain 23 in the forward and reverse directions by the driving force of the traveling motor 20. In addition, the end portion of the traveling chain 19 is connected and fixed to the loading unit 17, and the retracted position facing the rear surface side of the container group A, A for one row conveyed and supplied onto the loading conveyor 4 and 1 The loading unit 17 is stopped at the forward position where the container groups A, A for the rows are transferred onto the pallet P.

In the loading unit 17, the guide shafts 24, 24 are installed on the lower surface side of the loading unit 17 orthogonally to the loading direction, and the loading pusher 25 can be slid on the guide shafts 24, 24 left and right. The piston rod of the air cylinder 26 disposed on one side of the loading unit 17 is fixedly connected to the loading pusher 25, and the air cylinder 26 operates to convey and feed it onto the loading conveyor 4. At the retracted position facing the rear surface side of the container groups A, A, the loading pusher is moved to a position where the loading conveyor 4 is moved to the transport surface and a position where it is retracted to one side. Stop moving 25. In addition, loading guides 27, 27 are provided upright on both sides of the container groups A, A conveyed and supplied onto the loading conveyor 4.

As shown in FIG. 1 and FIG. 2, the above-mentioned transporting conveyor 6 has two feeds between each sprocket 28 that is pivotally supported at the feed-side starting end and the feed-side terminating end of the transporting conveyor 6. The driving chains 29, 29 are stretched in parallel, and are driven by the driving motor 30 with a built-in speed reducer installed at the lower position via the sprockets 31, 32 and the chain 33. Intermittently rotates in the feed direction. That is, the pallet P placed on the feed chains 29, 29 is conveyed and supplied to the loading position, and one group of container groups A, A corresponding to the loading operation of the case loading machine 5 described above is carried out. The pallet P is intermittently fed by one pitch for loading.

In addition, the alignment guides 34 and 35 are erected to face the front side and one side surface of the container groups A and A loaded on the pallet P, respectively, and the container loaded on the pallet P is loaded. A traveling and moving type alignment guide 36 is disposed in contact with the other side surfaces of the groups A and A, and shutters 36a and 36a are provided on the alignment guide 36 so as to be openable and closable. That is, the alignment guide 36 is moved one pitch at a time, corresponding to the intermittent feeding of the above-described transporting conveyor 6. As shown in FIG. 6, the container groups A, A for 5 rows are loaded on the pallet P, and at the same time, the shutters 36a, 36a of the alignment guide 36 are opened to load 50 containers a. The packed pallet P is transported and supplied to the next step (not shown).

The illustrated embodiment is configured as described above. Hereinafter, as an example of the number of loading stages by the case loading device 1, for example, five stages of containers a in which products (for example, mandarin oranges and persimmons) are stored. The stacking operation when stacking the sheets will be described. First, as shown in FIGS. 1 and 2, the stopper 2a of the supply conveyor 2 is recessed below the conveying surface, and the container a conveyed by the supply conveyor 2 is placed on the elevating conveyor 7 of the case stacking machine 3. Two are transferred. At the same time when the containers a 1 and a 2 are transferred onto the elevator conveyor 7, the stopper 2a is projected onto the transport surface to stop the transport of the succeeding container a and the elevator conveyor 7 is stopped to rotate.

Thereafter, as shown in FIGS. 3 and 4, the lifting cylinder 11 of the case stacking machine 3 is lifted to raise the lifting conveyor 7 to a position horizontal to the loading conveyor 4 on the upper stage side. After that, the holding cylinders 13, 13 on both upper sides are actuated synchronously to move the pair of holding arms 12, 12 in a direction facing both side surfaces of the containers a, a placed on the ascending / descending conveyor 7. The lower ends of the holding arms 12, 12 are rotated and locked to both side edges of the containers a, a to hold them in a horizontal posture. After that, the lifting cylinder 11 is lowered to lower the lifting conveyor 7 to a position that is level with the lower supply conveyor 2, and the lifting operation of the first-stage containers a, a is completed. ..

In the same manner as described above, the second to fifth tier containers a and a are sequentially stacked. That is, the elevating conveyor 7 of the case stacking machine 3 is moved up and down, and the second, third, and fourth containers a and a transferred on the elevating conveyor 7 are sequentially lifted, and When stacking the containers a, a, the holding cylinders 13, 13 on both upper sides are simultaneously operated to rotate the pair of holding arms 12, 12 in the separating direction, and the holding arms 12, 12 are sequentially operated. The stacked container groups A, A are held in a horizontal posture. Furthermore, after lifting the fifth-stage containers a and a transferred on the elevating conveyor 7 and stacking them on the bottom-most containers a and a horizontally held by the pair of holding arms 12 and 12, The holding cylinders 13, 13 on both upper side portions are deactivated, and the pair of holding arms 12, 12 stand by in a separated state. After that, the elevating conveyor 7 is rotationally driven in the loading direction, and the container groups A, A for one row stacked in five stages are transferred onto the loading conveyor 4. At this time, the loading pusher 25 of the loading unit 17 is retracted to one side of the loading conveyor 4.

Next, the container groups A, A for one row stacked in five stages are transferred onto the loading conveyor 4 and, at the same time, as shown in FIG. 5, the air cylinder 26 of the loading unit 17 is set. After operation, the loading pusher 25 is moved onto the loading conveyor 4, and then the traveling motor 20 of the case loading machine 5 is driven to move the loading unit 17 in the loading direction, as shown in FIGS. 1 and 2. While moving and moving the loading conveyor 4, the loading conveyor 4 is rotationally driven in the loading direction, and the container groups A, A for one row conveyed on the loading conveyor 4 are moved in the loading direction by the loading pusher 25. The first row of container groups A, A are loaded on the pallet P which has been stopped at the loading position by the transporting conveyor 6. After that, the loading pusher 25 is returned to the retracted position set on the loading conveyor 4, and the loading pusher 25 is retracted to one side of the loading conveyor 4, whereby a group of containers for one row is loaded. The loading operation of A and A is completed.

In the same manner as described above, the container groups A, A in the second to fifth columns are sequentially loaded on the pallet P. That is, the feeding motor 30 of the transporting conveyor 6 is intermittently driven to rotate, and the pallet P is intermittently fed by one pitch enough to load one row of container groups A, A stacked in five stages. Then, one group of container groups A, A conveyed on the loading conveyor 4 are sequentially loaded on the pallet P. At the same time, the alignment guide 36 is moved and moved in correspondence with the intermittent feeding of the transporting conveyor 6, and the loading of the container groups A, A is guided by the alignment guides 34, 35, 36 arranged in three directions. As shown in FIG. 6, while the container groups A, A in the fifth row are loaded on the pallet P, the shutters 36a, 36a of the alignment guide 36 are opened and 50 containers a are loaded. The pallet P is conveyed and supplied to the next step (not shown).

After that, the shutters 36a, 36a of the alignment guide 36 are closed to move back to the loading position, and the next pallet P is conveyed to the loading position by the transporting conveyor 6, and thereafter, the same operation is performed for loading. The container groups A, A for one row conveyed on the conveyor 4 are loaded on the pallet P, and the container groups A, A of the first to fifth rows are sequentially loaded while the pallet P is intermittently fed.

As described above, since the containers a supplied from the supply conveyor 2 are sequentially lifted to a predetermined height by the case stacking machine 3 and stacked in five stages, a large number of containers a as in the conventional example can be operated by the operator. It saves the labor and work of stacking one by one by hand, and the stacking work of the containers a can be done mechanically, and the containers a in which the products and articles are stored are stacked in five stages and then palletized in a batch. Since it is loaded on the P, it is not necessary for the operator to manually load the work, and the labor can be saved and the efficiency can be improved.

FIG. 7 shows a case stacking machine 3 of the second embodiment used for loading the corrugated cardboard boxes b onto the pallet P. The case stacking machine 3 is a holding arm 12 constituting the same machine. Holding members 37, 37 made of synthetic rubber or the like are fixed to the lower end portions of the holders 12, 12 so as to face both side surfaces of the box b, and small irregularities are formed on the pressure contact surface side of the holding members 37, 37. Then, for example, the surface resistance generated on the pressure contact surface between the box body b and the holding members 37, 37 is set to be larger than the weight load of the box group B stacked in five stages. That is, the one-stage boxes b, b lifted by the elevating conveyor 7 of the case stacking machine 3 are horizontally held by the pair of holding arms 12, 12, and the lower ends of the holding arms 12, 12 are held. By pressing the holding members 37, 37 fixed to the both side surfaces of the box bodies b, b, the group of boxes B, B stacked in five stages can be placed in a horizontal posture by the surface resistance generated on the pressure contact surfaces of the box bodies b. As is the case with the first embodiment described above, as shown in FIG. 8, the boxes B and B for one row stacked in five stages are sequentially stacked on the pallet P, so that the articles are stored. The labor and work of lifting the heavy box body b to a high position can be omitted, and the loading work of the box body b can be easily performed.

Further, the lower ends of the holding arms 12 and 12 described above are formed in an L-shape, and an L-shaped holding plate (not shown) is fixed to the lower ends of the holding arms 12 and 12 to lift and lower the arms. It is also possible to hold the holding arms 12, 12 on the bottom side of the box b lifted by the conveyor 7 and hold it in a horizontal posture.

In the correspondence between the configuration of the present invention and the above-described embodiment, the carrying case of the present invention corresponds to the container a and the box body b of the embodiment, and similarly, the shipping conveyor is The case lifting means corresponds to the supply conveyor 2 and the loading conveyor 4, the case lifting means corresponds to the lifting conveyor 7 of the case stacking machine 3, the lifting frame 8 and the lifting cylinder 11, and the case holding means is the case Corresponding to the holding arm 12, the holding cylinder 13 and the holding member 37 of the stacker 3, the case loading means is a running guide 16 of the case loading machine 5, a loading unit 17, and sprockets 18, 21, 22. It corresponds to the traveling chain 19, the traveling motor 20, the chain 23, and the loading pusher 25, but the invention is not limited to the configuration of the above-described embodiment. Not shall.

In the above-described embodiment, the pallets P are intermittently fed in increments of one pitch for loading the container groups A and A for one row, and the container groups A and A for one row are stacked in five stages. Are configured to be sequentially loaded on the pallet P. For example, the loading conveyor 4 and the case loading machine 5 are intermittently provided for each one pitch for loading one row of container groups A, A. One group of container groups A and A stacked in five stages may be sequentially loaded on the pallet P by moving.

[Brief description of drawings]

FIG. 1 is a side view showing a container loading operation of a case loading device according to a first embodiment.

FIG. 2 is a plan view showing a container loading operation of the case loading device.

FIG. 3 is a rear view showing a container holding state of the case stacking machine.

FIG. 4 is a rear view showing the container lifting operation of the case stacking machine.

FIG. 5 is a rear view showing the container loading operation of the case loading machine.

FIG. 6 is a perspective view showing a stacked state of containers loaded on pallets.

FIG. 7 is a rear view showing a box holding state by the case stacking machine of the second embodiment.

FIG. 8 is a perspective view showing a stacked state of boxes loaded on a pallet.

[Explanation of symbols]

 a ... container A ... container group b ... box body B ... box group 1 ... case loading device 2 ... supplying conveyor 3 ... case stacking machine 4 ... loading conveyor 5 ... case loading machine 6 ... transporting conveyor 7 ... lifting conveyor 12 ... Holding arm 25 ... Loading pusher 37 ... Holding member

Claims (1)

[Scope of utility model registration request] 1. A case loading device for stacking a predetermined number of carrying cases carried by a shipping conveyor on a pallet, the carrying case being carried by the shipping conveyor on a carrying path of the shipping conveyor. Case lifting means for lifting the carrying case for one step in the stacking direction is provided, and case holding means for holding the lowermost carrying case lifted by the case lifting means in a horizontal posture is provided, and the case lifting means and the case A case loading device having a case loading means for loading transport cases stacked in a predetermined number of stages on a pallet by a stacking operation with a holding means.