JPS59186870A - Counter ejector in machine for manufacturing can made of corrugated cardboard - Google Patents

Abstract

PURPOSE:To exactly count the number of stacked corrugated cardboards to be carried out and as well to smoothly carry out corrugated cardboards, by arranging a movable stopper in parallel with a stationary stopper, and as well by constituting a spanker with a double spanker including inner spanker and an outer spanker. CONSTITUTION:A movable stopper 44 which moves up and down upon carrying out of corrugated cardboards, is arranged in parallel with a stationary stopper 42, and a spanker is composed of an inner spanker 46 which moves upward together with the movable stopper 44 and an outer spanker 48 which is coupled to a drive means 60 through a link mechanism 58. With this arrangement, the movable stopper 44 and the inner spanker 46 are moved upward each time when corrugated cardboards are stacked up in a predetermined number, to separate and carry out these corrugated cardboards, and as well to stack up and store newly fed corrugated cardboards between the movable stopper 44 and the outer spanker 48 so that the number of the stacked corrugated cardboards to be carried out may be exactly counted, and as well the corrugated carboards may be smoothly carried out.

Description

[Detailed Description of the Invention] [Technical Field to Which the Invention Pertains] This invention relates to stacking a predetermined number of cardboard boxes, which have been glued and folded in advance as a box-formed body in a cardboard box-making machine, counting seven sheets at a time, and then straightening the cardboard boxes. The present invention relates to a counter ejector configured to eject quantitatively.

[Prior art and its problems]

Conventionally, various types of counter ejectors of this type have been implemented. The configuration of a typical conventional counter ejector is shown in FIG. That is, in FIG. 1, the reference numeral /Q indicates a hopper that stacks and holds folded cardboard boxes. At the bottom of the hopper 10, a conveyor belt conveyor 2 is disposed, and above the conveyor belt 2, a stopper puffer and a spanker 16 are disposed facing each other at a predetermined distance in the belt conveyance direction. However, on the cardboard supply side of the belt 7.2 on which the spanker /6 is arranged, a photoelectric counter /r is provided to count the number of supplied cardboards. Further, a feeding belt conveyor 20 is disposed adjacent to the cardboard supply side of the belt 7.2 for feeding seven cardboard boxes that have been glued and folded in advance as a box-formed body. Incidentally, a suitable delivery and conveyance means 22 is provided between the feed belt conveyor θ and the conveyor belt 2. On the other hand, a carry-out belt conveyor 24t is disposed adjacent to the stopper puffer, and a suppressing transfer means for intermittently carrying out the corrugated poles stacked in the hopper IO above the spanker/O to the carry-out belt conveyor, 2nd floor. 2B will be established. Furthermore, hopper i
A stabilizing means 2g is provided above the transport belt conveyor 2 and the transport belt conveyor 2 to prevent the stack from collapsing when transporting a predetermined number of stacked cardboard boxes.

The counter ejector configured in this manner receives the cardboard boxes fed seven sheets at a time from the feeding belt conveyor 20 and supplies them to the conveying belt conveyor 2.2 via the delivery and conveying means 2.2. At this time, the cardboard boxes are counted by a counter/box and sequentially inserted into the bottom of the hook 10 formed between the spanner/≠ and the spanker/l. At this time, the drain filter 16 performs a rocking motion by a drive means such as an eccentric crank, and corrects the cardboard boxes stacked in the hopper io so that they are stacked regularly. In this manner, when a predetermined number of cardboard boxes are stacked above the upper end of the stopper puffer, the suppression and transfer means 2B is activated to transport a certain amount of the cardboard boxes to the delivery belt conveyor 2B.

Therefore, since the conventional counter ejector shown in FIG. The correction can be achieved well. However, this type of counter ejector has the disadvantage that it is not possible to accurately count the number of cardboard boxes to be carried out because the cardboard boxes stacked in the hopper IO are carried out depending on how stacked they are. In addition, since the stopper /≠ forming the hopper 70 is fixed and recessed,
Stopper/B located below the height of 4'
There is a drawback that ~3 sheets of cardboard cannot be straightened.

In order to overcome these problems, a counter ejector in which one hopper is arranged side by side as shown in FIG. 2 has been proposed and put into practice. Namely.

The counter ejector shown in FIG. 2 includes a hopper 10 for stacking and straightening a predetermined number of corrugated cardboard boxes, and a hopper 10 equipped with a pressing transfer means for ejecting the corrugated holes in which a predetermined number of corrugated boards have been stacked.
b and are configured separately. For convenience of explanation, constituent parts having the same functions as the constituent parts shown in FIG. 1 will be given the same reference numbers and detailed explanation thereof will be omitted. The counter ejector shown in FIG. 2 is different from the counter ejector shown in FIG.
0a, a conveyor belt conveyor 30f is attached to the bottom of the hopper IQ for sequentially conveying the corrugated holes to the hopper IQ in the latter stage, and a fixed stopper l≠ and a movable stopper 32 are arranged in parallel in the hopper 10b in the latter stage. be. Note that a feeding belt conveyor 2 is connected to the previous stage hopper 10a from above.
0 and the delivery conveyance means, 2-2, the cardboard is transferred to 7.
Supplied one by one. Further, a pressing means 3t such as a blower for pressing the cardboard downward is provided above the hopper 10a at the front stage.

The counter ejector configured in this way corrects a predetermined number of cardboards stacked in the hopper 10h in the previous stage,
Rough cardboard sheets are conveyed from the bottom of the hopper 10h to the subsequent hopper 10b by a conveyor belt 30. At this time, the step holes that are sequentially inserted into the hopper 10bK are counters/r
is counted. When a predetermined number of cardboard boxes have been counted, the movable stopper 3.2 installed in parallel with the identification stopper 3.2 is moved upward to align the upper ends of the fixed stopper 3.2 and the movable stopper 3. , one end of the predetermined number of cardboard boxes is positioned above the upper end of the fixed collar. Next, by activating the pressing transfer means 2B, all the corrugated holes stacked in the hopper lOb can be smoothly transported to the transport belt conveyor 21.

Therefore, the counter ejector shown in FIG. 2 has the advantage of being able to accurately count the number of stacked cardboard boxes dispensed from the hopper, and of being able to reliably eject up to the last seven cardboard boxes from the hopper. . However, since the corrugated cardboard is supplied from above to the hopper that performs the straightening, the suppression of the five corrugated cardboards from above is not sufficient, making it impossible to fully straighten the right angles. There are disadvantages such as 9 is likely to occur.

[Purpose of the invention]

An object of the present invention is to provide a corrugated board that can accurately count the number of corrugated cardboards to be carried out by stacking a predetermined number of sheets in a single hopper, properly correcting all corrugated holes supplied, and smoothly discharging the cardboard boxes. We provide counter ejectors for box making machines.

[Key points of the invention]

The present invention involves counting and feeding seven glued and folded cardboard boxes as a box-formed body, sequentially stacking and storing them in a hopper configured to hold them between a stopper and a spanker, and correcting them with a spanker. In a counter ejector of a corrugated box making machine configured to intermittently carry out a predetermined number of stacked cardboard boxes using a suppressing moving means, the stopper is a fixed stopper and a movable stopper that moves upward when carrying out a predetermined number of stacked cardboard boxes is installed in parallel with the fixed stopper. On the other hand, the spanner includes an inner spanker that moves upward together with a movable stopper when carrying out the cardboard, and an outer spanker that is connected to the rocking movement drive means through a link mechanism that moves backward when carrying out the cardboard. The percentage is that it consists of heavy spankers.

That is, in the present invention, a fixed stopper and a movable stopper are arranged side by side on one side of a hopper that stores the first-stage holes while sequentially counting them, and a double spanker is provided on the other side, so that a predetermined number of 91 corrugated cardboards can be stored. Each time the cardboard boxes are stacked, the movable stopper and the inner spanner of the double spanker are moved upward to separate and carry out the cardboard boxes, and the cardboard boxes that are fed at the same time are stacked and stored between the movable stopper and the outer spanker. The number of stacked cardboard boxes to be carried out can be counted to a high degree, and smooth stacking and correction of the cardboard boxes can be easily realized.

In the counter ejector described above, there are three movable stoppers.
It is preferable to configure the position switching valve to move upward intermittently in three stages.

In addition, the movable stopper and the inner spanker, in which a predetermined number of corrugated holes are stacked between the fixed stopper and the inner spanker, are moved upward, and the newly fed corrugated cardboard is stacked between the movable stopper and the outer spanker. It is preferable to configure the device so that it can be stored in one place.

Furthermore, it is preferable that when the movable stopper and the inner spanker move upward to a predetermined position, the double spanker is moved back under the action of the link mechanism, the suppressing moving means is advanced, and a predetermined number of stacked cardboard boxes are carried out. be.

Furthermore, by providing a vertically movable lifting plate for correcting the last stage pole at the bottom of the receding corrugated boards stacked and stored between the stopper and the double spanker, feeding of the corrugated poles is completed. Or, when feeding is interrupted, the final corrugated board in the hopper can be straightened smoothly and easily.

[Embodiments of the invention]

Next, embodiments of a counter ejector for a corrugated box making machine according to the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 3 is an explanatory diagram showing the basic structure of the counter ejector according to the present invention. That is, in the present invention, the configuration of the hopper is significantly changed and improved from the conventional configuration. In addition, the feeding and unloading means of the corrugated hole to the hopper are as follows.

Since it is the same as the conventional structure shown in FIG. 1, the same reference numerals are given to the same components and detailed explanation will be omitted. Hola pub O of the counter ejector in the present invention has a fixed stopper 'i'2 and a movable stopper Hiroshi≠ arranged side by side on one end side of which the bottom part is a conveyor heald conveyor /2,
A double spanker consisting of an inner spanker≠B and an outer spanker at is disposed on the other end side, and furthermore, a pressing transfer means 20 is provided to push the inner spanker 4 in parallel with the spanner A. In addition, above the hopper 4tO is a pressing means that applies an appropriate pressing force to the top surface of the cardboard boxes that are successively stacked!
A section will be provided.

However, the movable stopper 1lLII- is arranged in parallel inside the fixed stopper V2, and the movable stopper 1lLII- is arranged in parallel inside the fixed stopper V2, and
It is configured to be able to move up and down. Further, on the opposite side of these stoppers px and 4tp, a cardboard bottom lifting plate jz is provided at the bottom of 1 hopper≠0 so as to be fully vertically movable. on the other hand,
The double spanker located opposite the fixed stopper≠2,
A link mechanism in which the inner spanker +a is configured to be movable upward relative to the outer spanker width, and when the outer spanker is ≠, the inner spanker ≠6 is moved in a direction away from the fixed stopper! It is connected to a drive means to such as an eccentric crank via r.

The other configuration is basically the same as that of the conventional counter ejector shown in FIG. Therefore, a specific example of the configuration of the counter ejector according to the present invention configured as described above is shown in FIG.

Next, the counter ejector according to the present invention having the above-mentioned structure will be described in particular regarding the feeding, stacking, and unloading operations of cardboard boxes in the hopper Hiroo O. This will be explained below with reference to Figures B-g.

First, the fixed stopper and double spanker≠Otsu.

At is placed at a predetermined interval, and during this time, the cardboard boxes are sequentially counted with a counter/box and piled up [Figure J a]
Diagram]. In this way, when a predetermined number of cardboard boxes are stacked in the hopper 4to and the counter/♂ counts out, the movable stopper 412f is raised to the first position 1 under the action of the 3 position cylinder (see Figure 5). reference〕.

At the same time, low-pressure compressed air is introduced into the cylinder connected to the inner spanker≠6 to reduce the spanker weight. Next, as the cardboard continues to be inserted, the cardboard itself raises the inner spanker 4t6, and the first proximity switch provided on the outer spanker 4t♂ causes the inner spanker 1/-6 to rise to the seventh position relative to the outer spanker width. 62 detects the movable stopper≠
≠ is a 3-position cylinder! (See Figure J C). As the cardboard continues to be inserted, the white of the cardboard further raises the inner spanker ≠ O and rises to the second position against the outer spanner r. The second proximity switch 6hiro detects that the movable stopper is ≠ 4A.
is raised to the third position (ascent limit) -1 under the action of the three-position cylinder t<z (see Figure J, d). Also, at this point, the bottom of the front end of the raised predetermined number of stacked cardboard boxes is located above the mouth end of the fixed stopper 4'2, and the suppressing transfer means! θ comes into contact with the top cardboard which is being corrected by the outer spanker. And the press transfer means along the top surface of the cardboard! O A belt conveyor that is fully advanced and carries out a predetermined number of stacked cardboard boxes, 2
≠ (see Figure e). Thereafter, the double spankers FJ and F♂ are moved back a predetermined distance by cylinder operation via the cylinder mechanism 5g.

In this way, after carrying out the predetermined number of stacked cardboard boxes to the carry-out belt conveyor,
O is returned to its original position, and the movable stopper Hiroshi≠ and inner spanker +g are returned to their original positions [No.! See figure f]. At this time, the continuously fed cardboard boxes are already stored and stacked at the bottom of the hopper.

Therefore, firstly, when the double spanners ttt and 4Lr are returned to their original positions by cylinder operation via the cylinder mechanism 5g, the already stacked cardboard boxes are also moved together.
Its front end abuts against the fixed stopper ≠- (see figure j, g).

When the above-mentioned cycle operation is performed continuously and, for example, the final cardboard is fed in the state shown in Fig. 3g, the lifting plate jt is raised to lift the other end of the stacked cardboard. Lift it up and straighten the cardboard at the bottom.

The control operations of the movable stopper V, the double spanner t, and the groove of the hook θ in the present invention described above can generally be controlled by a pneumatic control system. An example of this pressure control system is shown in FIG. 6. In other words, in Figure 1, the movable strut <
4L4L inner spanker 41 and link mechanism! This figure shows a wall pressure control system in which a pair of cylinders are provided to operate r and fc. Therefore, the cylinders sti, 5qil'i for operating the movable stopper are connected to a pneumatic source via the three-position switching valves J4, JA, respectively, and the cylinders z, etc. for operating the inner spanker.

6g is connected to a pneumatic source via a switching valve 70, 70, and a link mechanism operating cylinder 72.72 is connected to a switching valve 74.
connected to a pneumatic source via t.

However, the operation timings of these switching valves 6z, 7θ, 7≠ are as shown in FIG.

〔Effect of the invention〕

As is clear from the above-mentioned embodiments, according to the present invention, the hopper that stores cardboard boxes in a stack while counting them is of a single configuration, and the movable stopper and the spanner of the double spanner are moved at each predetermined count. The structure is configured such that a predetermined number of stacked corrugated cardboards are separated and transferred to the unloading operation, and the corrugated cardboards that are sequentially fed after a predetermined count are corrected between the raised movable stopper and the outer spanner of the double spanner. By configuring it so that it can be stored while being stacked,
The number of stacked cardboard boxes to be carried out can be counted with high precision, and the final fed cardboard boxes can be reliably corrected.

Although the preferred embodiments of the present invention have been described above, it goes without saying that various design changes can be made without departing from the spirit of the present invention.

[Brief explanation of the drawing]

Fig. 1 is a mechanism explanatory diagram showing one configuration example of a counter ejector of a conventional corrugated box making machine. Fig. 2 is an explanatory diagram showing another configuration example of a conventional counter ejector. The third factor is the present invention. 41-g is an explanatory diagram showing the basic configuration of the counter ejector of the corrugated box making machine; Fig. 6 is a system diagram of the control mechanism of the hopper shown in Fig. 3, and Fig. 7 is a time chart showing the operation of the control system shown in Fig. 6. It is. 10...Hopper /2...Transport belt conveyor/≠...Stopper /l...Spanker/I・
...Photoelectric counter KoO...Feeding belt conveyor...Suppressing transfer means 2g...Stabilizing means 3g...
...Pushing means lθ...Hopper≠2...Fixed stopper ≠≠...Movable stopper 1JL6...Inner spanker Gagza...Outer spanker! O... Suppressing means of transport Yoko... Pressing means! ♂...° Link mechanism 10... Drive means 7.2... First proximity switch T group... Second proximity switch -/2-

Claims (1)

[Scope of Claims] (1) Cardboards glued and folded as a box-formed product are counted and fed seven at a time, and are sequentially stacked and stored in a hopper configured to be held between a stopper and a spanker. In the counter ejector of a corrugated pole box making machine, which is configured to intermittently transport a predetermined number of stacked cardboard boxes using a suppressing moving means while correcting them with a spanker, the stopper is configured to move the top of the fixed stopper when carrying out a predetermined number of stacked cardboard boxes. A movable stopper that moves is arranged in parallel, and the spanner is connected to the swing motion driving means via an inner spanker that moves upward together with the movable stopper when carrying out the cardboard, and a link mechanism that moves backward when carrying out the cardboard. A counter ejector for a corrugated box making machine, characterized in that it is composed of a double spanker and an outer spanker. (2. In the counter ejector described in claim 1, the movable stopper is operated by a 3-position switching valve.
A counter ejector for a corrugated box making machine configured to move upward intermittently in stages. (3) In the counter ejector according to claim 1, when a predetermined number of cardboard boxes are stacked between the fixed stopper and the inner spanker, the movable stopper and the inner spanker are moved upward. A counter ejector for a corrugated box making machine configured to stack and store newly fed corrugated poles between a movable stopper and an outer spanker. (4) In the counter ejector according to claim 1, the movable stopper and the inner spanker are in the predetermined position I.
A counter ejector for a corrugated box making machine, which is configured to move a double spanker backward under the action of a link mechanism and move forward a suppressing movement means when moved upward by an i-ma, so as to carry out a predetermined number of stacked corrugated cardboards. (5) % allowance In the counter ejector according to claim 1, a lifting plate for straightening the final corrugated cardboard is movable up and down at the retreating bottom of the corrugated cardboard stacked and stored between the stopper and the double spanker. A counter ejector with a corrugated cardboard surface area.