JP2017159925A - Roll sheet stacking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a roll sheet stacking device capable of stacking a roll sheet without using a handling device.SOLUTION: A roll sheet stacking device comprises: a lift up guide 116 or the like for lifting up a roll sheet 10; side panels 113 which are provided on an upper part of the lift up guide 116, and which are arranged on both sides of the lift up guide 116; and under stoppers 114 respectively provided between the lift up guide 116 and the side panel 113, and supporting a lower part of the roll sheet 10, in which, when the roll sheet 10 is lifted up by the lift up guide 116, the under stoppers 114 are at a retreat end, and after the roll sheet 10 is moved to a rise end of the lift up guide 116, the under stoppers 114 move to an advance end and support the lower part of the roll sheet 10.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an apparatus for bagging roll paper in a state where paper such as toilet paper is wound, and more specifically, to a technique for stacking roll paper, inserting it into a bag body, and packing it.

  Various technologies have been disclosed regarding the stacking and packaging method of roll paper in which toilet paper is wound. Usually, when being sold, it is packaged and distributed in a state of being stacked in a plurality of plastic bags. In many cases, a dedicated packing device is used for this packing. The problem here is the method of stacking roll paper and the packaging method.

  Patent Document 1 discloses a technique regarding a toilet paper roll pack packaging apparatus and packaging method. A film supply mechanism that rotatably supports a translucent tube-shaped raw film roll, a bag-making mechanism that manufactures a bag body by sealing the tip of the tube-shaped film supplied from the film supply mechanism, and a bag-making mechanism A squeeze mechanism for aligning and stuffing a predetermined number of individually wrapped toilet paper roll packs into a bag body manufactured in step 1, and gusset-folding the rear end of the bag body packed with a predetermined number of toilet paper roll packs, and then sealing And a sealing mechanism. The toilet paper roll pack refers to a state in which 12 4 × 3 toilet paper rolls are packed, and is a technique for packing them together.

  Patent Document 2 discloses a technique regarding toilet paper and a packaging method thereof. Toilet paper wrapped with wrapping paper conveyed by the feeding device is sent from the feeding device to the packaging table in the number of packages, and placed in a plastic bag on the packaging table. And it is closed by heat sealing. Although not specified, the packaging table has a lifting and lowering function, and after toilet paper is sent to the packaging table by the feeding device, it becomes a structure that can be stacked by going down one step and sending toilet paper again by the feeding device. It is thought that there is.

JP 2010-95295 A JP-A-1-139361

  However, the contents described in Patent Document 1 do not refer to a technique for stacking roll papers themselves, and it is difficult to use the technique disclosed in Patent Document 1 for stacking roll papers. In addition, it is considered that the contents described in Patent Document 2 are stacked by supplying new roll paper in a state where the packaging table is lowered when the roll paper is stacked. However, when the roll paper is already stacked in one stage and the roll is further lowered and the roll paper is further stacked, it is considered that the friction of the roll paper surface becomes a problem. In Patent Document 2, it is a process of stacking toilet paper after wrapping it with wrapping paper, but in recent years, there is a strong tendency to eliminate excessive packaging, and roll paper is stacked directly and bags such as plastic bags. Insert into the body. That is, it seems that the technique described in Patent Document 2 is unsuitable for handling roll paper that is not wrapped with such wrapping paper.

  Therefore, it is assumed to include a process of grasping / releasing the roll paper when stacking. However, when material handling is performed using a machine such as an industrial robot, initial investment is required and the installation space is considered to be a problem.

  Accordingly, an object of the present invention is to provide a roll paper stacking apparatus capable of stacking without handling roll paper in order to solve such problems.

  In order to achieve the above object, a roll paper stacking apparatus according to an aspect of the present invention has the following characteristics.

(1) In a roll paper stacking apparatus for supplying roll paper in two rows and stacking the roll paper, a lifter mechanism for lifting up the roll paper, and an upper part of the lifter mechanism, A side holding plate disposed on both sides, and a roll paper lower holding mechanism that is disposed between the lifter mechanism and the side holding plate and supports a lower portion of the roll paper, and the roll paper is provided in the lifter mechanism. When the roll paper is lifted, the roll paper lower holding mechanism is at the retracted end, and after the roll paper is moved to the rising end of the lifter mechanism, the roll paper lower holding mechanism is moved to the forward end, and the roll paper Holding the lower part of.

  According to the aspect described in (1) above, roll paper can be stacked by the lifter mechanism, the side surface holding plate, and the roll paper lower part holding mechanism. In other words, using the lifter mechanism and the side support plate, the lifted roll paper can be held between the side support plates, and the lower part of the roll paper can be supported by the lower roll paper holding mechanism. In addition to reducing the installation space, the facility cost can be reduced.

(2) In the roll paper stacking device described in (1), it is preferable that the side surface holding plate is provided with support protrusions for supporting the roll paper according to the number of stacks of the roll paper. .

  According to the aspect described in (2) above, when a plurality of roll papers are stacked, an effect of preventing the roll paper from collapsing can be obtained. As a result, since it is possible to stably carry out stacking, it is possible to increase equipment efficiency and contribute to cost reduction.

It is a top view of the roll paper stacking apparatus of this embodiment. It is a side view of the roll paper stacking apparatus of this embodiment. It is a front view of the roll paper conveyance unit of this embodiment. It is a side view of the roll paper conveyance unit of this embodiment. It is a front view of a posture change unit of this embodiment. It is a top view of a posture change unit of this embodiment. It is a flowchart regarding the product creation process by the roll paper stacking apparatus of this embodiment.

  First, an embodiment of the present invention will be described with reference to the drawings. In FIG. 1, the top view of the roll paper stacking apparatus of this embodiment is shown. FIG. 2 shows a side view of the roll paper stacking device. The roll paper stacking apparatus 100 includes a roll paper transport unit 110, a bag body supply unit 120, a posture changing unit 130, a bag body moving unit 140, a pusher unit 150, and a product discharge unit 160.

FIG. 3 shows a front view of the roll paper transport unit 110. FIG. 4 shows a side view of the roll paper transport unit 110. The roll paper transport unit 110 includes a transport conveyor 111. The conveyor 111 is a belt conveyor system, and two belt conveyors are arranged in parallel. Two rows of roll paper 10 can be arranged and conveyed by the conveyor 111. A lift-up guide 116 is provided at the extension destination of the conveyor 111.

  The lift-up guide 116 is moved up and down by a lift-up arm 117 connected to the lift-up motor 112. When the sensor detects that the roll paper 10 has reached a predetermined position, the lift-up guide 116 connected to the lift-up arm 117 lifts up the roll paper 10 by the movement of the lift-up motor 112.

  Side panels 113 are provided on both sides of the upper portion of the lift-up guide 116 so as to face each other. The side panel 113 is provided with a holding projection 113g that protrudes inward, and is formed to be narrower than the width of two roll papers 10 so that the roll paper 10 can be held. The side panel 113 is divided into three parts, and the upper panel 113a, the middle panel 113b, and the lower panel 113c are provided so as to partially overlap. The upper panel 113a, middle panel 113b, and lower panel 113c can be individually adjusted in position. And each is provided with the holding convex part 113g.

  The under stopper 114 is disposed on the lower side of the side panel 113 and supports the lower side of the roll paper 10. The structure is driven by the cylinder 114a. The first pusher 115 is pressed by the first pusher 115 in a state where 18 rolls 10 are held by the side panels 113. The under stopper 114 is the forward end when it is closed, and the reverse end when it is open. That is, the cylinder 114a is advanced from both sides, the lower part of the roll paper 10 is held at the forward end position, and the roll paper 10 can pass between the under stoppers 114 at the backward end position.

  The bag body supply unit 120 includes a cutter for separating each bag body supplied from the bag body roll, an inversion air blower that repeats the bag body, and an arm that moves the bag body. The reverse air blower is controlled so that air can be supplied to the bag body at an arbitrary timing.

  FIG. 5 shows a front view of the posture change unit. FIG. 6 shows a top view of the posture change unit. The posture change unit 130 includes a swing arm 131, a roll paper holding frame 132, a drive motor 133, and a link mechanism 134. A roll paper holding frame 132 is provided at the tip of the swing arm 131, and a drive motor 133 is attached to the swing arm 131 via a link mechanism 134 and a speed reducer 135. By operating the drive motor 133, the swing arm 131 is moved 90 degrees as shown in FIG. 5, and the roll paper holding frame 132 attached to the tip changes its posture. The roll paper holding frame 132 has a structure that can be adjusted in size.

  The bag body moving unit 140 includes an opening mechanism 141 that widens the entrance of the bag body and a moving mechanism 142 that linearly moves the opening mechanism 141. The widening mechanism 141 is formed in a square shape with four L-shaped guides facing each other so that one end of the bag body can be held in a widened state. The position of the L-shaped guide can be adjusted. The moving mechanism 142 is configured to realize the movement of the widening mechanism 141 by connecting a belt connected to a motor (not shown) and the widening mechanism 141. The widening mechanism 141 is guided by the LM guide 143 and can move straight. Using the moving mechanism 142 and the LM guide 143, the mouth opening mechanism 141 held in a state where the bag body is hooked can be linearly moved.

  The pusher unit 150 includes a second pusher 151 as shown in FIG. The second pusher 151 is moved by a linear motion mechanism such as a rodless cylinder 153. The product discharge unit 160 includes a discharge conveyor 161 and an impulse sealer 162. The discharge conveyer 161 moves the product in which the roll paper 10 is packed in two rows and three stages 18 to the outside of the roll paper stacking device 100, and the impulse sealer 162 closes the mouth of the bag body by ultrasonic welding. .

  Next, a series of operations of the roll paper stacking apparatus 100 will be briefly described. FIG. 7 shows a flowchart relating to a product creation process by the roll paper stacking apparatus. First, in S10, the roll paper 10 is supplied six by two in two rows. The roll paper 10 is loaded from A1 shown in FIG. 1, and is conveyed by the conveyor 111 in a state of being arranged in two rows. Then, two rows and six rolls of paper 10 are conveyed onto the lift-up guide 116 by the conveyor 111.

  Thereafter, in S11, the roll paper 10 is moved upward by the lift-up guide 116. At this time, the under stopper 114 is opened and the roll paper 10 is moved upward through the under stopper 114. When the roll paper 10 is disposed between the side panels 113, the under stopper 114 is closed and moves below the roll paper 10. To support. This operation is repeated, and 18 roll papers 10 in two rows and three stages are stacked. For the sake of convenience, the 18 roll papers 10 stacked in two rows and three stages are referred to as a stacked roll paper group 30.

  In S12, the stacked roll paper group 30 is sent to the posture changing unit 130 side by the first pusher 115. The posture changing unit 130 is provided with a roll paper holding frame 132, and the stacked roll paper group 30 is pushed by the first pusher 115 and stored in the roll paper holding frame 132. The size of the roll paper holding frame 132 is adjusted to be slightly larger than the stacked roll paper group 30.

  In S13, after the stacked roll paper group 30 is inserted into the roll paper holding frame 132, the swing arm 131 is moved to change the posture of the stacked roll paper group 30. The opening mechanism 141 provided in the bag body moving unit 140 is held in a state where the bag body supplied from the bag body supply unit 120 is turned over.

  In S14, the bag roll is pulled out while being held by the arm, and the member is hooked around the mouth opening mechanism 141. In S15, the bag roll is cut with a cutter. After that, in S16, the bag body is reversed by turning the air with the reversing air blower and turned over.

  In S <b> 17, the bag body is moved by the moving mechanism 142. The mouth opening mechanism 141 holding the bag by the moving mechanism 142 moves to the moving end. At this time, the roll paper holding frame 132 and the widening mechanism 141 are arranged in a straight line.

  In S18, the second pusher 151 moves forward and pushes the stacked roll paper group 30. Since the roll paper holding frame 132, the widening mechanism 141, and the discharge conveyor 161 are arranged in a straight line, first, the stacked roll paper group 30 pushed by the second pusher 151 comes into contact with the bottom surface of the bag body turned over, Then, the product roll paper group 30 passes through the inside of the mouth opening mechanism 141 while the product roll paper group 30 pushes the bag back. Then, the stacked roll paper group 30 is moved to the position of the product discharge unit 160. The bag turned upside down at this stage has the outer side with the stacked roll paper group 30 in the front. Thus, the stacked roll paper group 30 is packed in the bag.

  In S19, the mouth of the bag is closed with the impulse sealer 162. Further, in S20, the bag body is discharged by the discharge conveyor 161. In this way, a product package 15 in which two rows, three stages, and 18 roll papers 10 are stacked and stored in the bag body is completed.

  Since the roll paper stacking apparatus 100 of this embodiment is the said structure, there exists an effect | action and effect which are demonstrated below.

  First, the roll paper stacking apparatus 100 according to the present embodiment supplies the roll paper 10 in two rows, and the roll paper stacking apparatus 100 that stacks the roll paper 10 lifts up the roll paper 10. (And lift-up motor 112, lift-up arm 117), side panel 113 provided on the upper side of lift-up guide 116 and disposed on both sides of lift-up guide 116, and between lift-up guide 116 and side panel 113. And an under stopper 114 that supports the lower portion of the roll paper 10, and when the roll paper 10 is lifted by the lift-up guide 116, the under stopper 114 is at the retracted end, and the lift end of the lift-up guide 116 After the roll paper 10 is moved, the under stopper 114 moves to the forward end. To, is to hold the bottom of the roll paper 10.

  Since it is such a configuration, it is not necessary to wrap the wrapping paper around the roll paper as shown in Patent Document 2, and it is not necessary to handle the roll paper when stacking, so handling facilities are required. It can contribute to cost reduction. Further, the equipment for handling tends to be large because a plurality of drive mechanisms are required, but the lift-up guide 116 is lifted and lowered using the lift-up motor 112 and the lift-up arm 117. A space-saving device can be realized.

  In addition, since the roll paper 10 is a roll of whitish paper such as toilet paper, it is desirable to avoid having the drive unit at the top of the roll paper as much as possible. This is because oil or the like used in the drive unit may contaminate the roll paper 10, and it is reasonable to use the lifter mechanism in order to prevent such a risk.

  Further, the roll paper stacking apparatus 100 of the present embodiment includes a bag body supply unit 120, supplies the roll paper 10 in two rows, and rolls the aligned roll paper 10 in a roll. The lift-up guide 116 provided in the roll paper transport unit 110 for stacking the paper 10 and the stack roll paper group 30 stacked from the roll paper transport unit 110 are received from the first position. A posture change unit 130 for changing the posture to the second position, and a pusher unit 150 with the stacked roll paper group 30 as a bag when the stacked paper roll 30 is in the second position of the posture change unit 130. The posture changing unit 130 has a roll paper holding frame 132 for holding the stacked roll paper group 30 at the tip of the swing arm 131, and the roll paper holding frame 132 is the first one. Position and Upon changing of the posture of the second position to change the angle of the swing arm 131.

  Since such a posture changing unit 130 is employed, the posture can be changed in a space-saving manner. As shown in FIG. 1, the roll paper stacking apparatus 100 as shown in the present embodiment has two supply locations: a roll paper transport unit 110 that supplies the roll paper 10 and a bag supply unit 120 that supplies the bag. And one discharge port of the product discharge unit 160 is required. Therefore, it is difficult to arrange these three units on a straight line. For this reason, in the roll paper stacking apparatus 100 of the present embodiment, the roll paper transport unit 110 and the product discharge unit 160 are not arranged on a straight line, and the posture changing unit 130 is used.

  As a result, since the swing arm 131 is employed in the posture changing unit 130, space saving can be achieved. For example, when a structure such as an index table is used instead of the swing arm 131, it becomes easy to hold the roll paper 10 at a predetermined position, but the posture changing unit 130 becomes large and the overall height of the equipment becomes high. Problems arise. In the roll paper stacking apparatus 100 of this embodiment, since the link mechanism 134 is employed, the torque ratio can be optimized with respect to the angular velocity ratio. As a result, it is possible to hold an appropriate position when holding the swing arm 131 at 90 degrees.

  Further, since the bag body is turned over by the reversing air blower prepared in the bag body supply unit 120 and the stacked roll paper group 30 is inserted, the stacked roll paper group 30 is not caught on the bag body smoothly. Inserted. For this reason, the effect of preventing the occurrence of tearing of the bag body or preventing the roll paper 10 from being damaged can be obtained.

  As mentioned above, although embodiment of the roll paper stacking apparatus 100 based on this invention was described, this invention is not necessarily limited to this, A various change is possible in the range which does not deviate from the meaning. For example, the stack of rolls 30 is 18 in 2 rows and 3 rows, but does not prevent packaging in 12 rows and 2 rows. In the present invention, this can be realized only by adjusting the size of the roll paper holding frame 132 provided in the posture changing unit 130 and the size of the mouth opening mechanism 141. Actually, each of the roll paper holding frame 132 and the widening mechanism 141 has a function of adjusting the size, and can be replaced.

10 Roll paper 30 Stacked roll paper group 110 Roll paper transport unit 120 Bag body supply unit 130 Attitude change unit 140 Bag body movement unit 150 Pusher unit 160 Product discharge unit

Claims (2)

In a roll paper stacking device for supplying roll paper in two rows and stacking the roll paper,
A lifter mechanism for lifting up the roll paper;
A side surface holding plate provided on an upper portion of the lifter mechanism and disposed on both sides of the lifter mechanism;
A roll paper lower holding mechanism that is disposed between the lifter mechanism and the side surface holding plate and supports the lower part of the roll paper,
When the roll paper is lifted to the lifter mechanism, the roll paper lower holding mechanism is at the retracted end,
After the roll paper is moved to the rising end of the lifter mechanism, the roll paper lower holding mechanism is moved to the advance end to hold the lower part of the roll paper;
Roll paper stacking device characterized by this. In the roll paper stacking device according to claim 1,
The side surface holding plate is provided with support protrusions for supporting the roll paper according to the number of stacked stages of the roll paper,
Roll paper stacking device characterized by this.

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