JP2002166908A - Side face folder in box-shaped packaging machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a side face folder in a box-shaped packaging machine, which can tightly wrap a work without losing its shape. SOLUTION: A first folding plate 50, a second folding plate 60 and a third folding plate 70 are sequentially provided in an order of feeding a set of works W from an inlet toward an outlet. The first folding plate 50 comprises a member for folding a rear part of an end of wrapping paper forward. The second folding plate 60 comprises a member for folding a front side part of the end of the wrapping paper backward. The third folding plate 70 comprises a member for folding an upper part of the end of the paper downward and folding a lower part upward. The folder further comprises conveyers 41 and 42 for carrying the set of works W from the inlet toward the outlet while supporting a lower surface of the set, an upper pusher 43A for pushing an upper end of the set to carry it from the inlet to the outlet and a lower pusher 43B for pushing a lower end of the set of works to carry it from the inlet to the outlet.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a side folding device in a box-type packaging machine. The box-shaped packaging machine is a machine in which a fixed number of works are arranged in parallel, that is, arranged in a substantially rectangular parallelepiped, and six surfaces of the works are packed with one piece of wrapping paper. In this box-type packaging machine, when the work is received, the work is wrapped around the four sides of the work with wrapping paper, and then the remaining two sides of the work are wrapped with wrapping paper, and the packaging is performed in a sealing order. To go. The present invention relates to a side-folding device for wrapping the remaining two surfaces of a work after a body winding in such a box-shaped wrapping paper. In the present specification, a case in which a toilet roll is handled as a work will be described as an example. As shown in FIG. 12, as shown in FIG. Packaging form) is called a unit work w,
A work in which several unit works are arranged in two rows is called a collective work W. Note that the number of unit works w in each row may be four (the example in FIG. A), three (the example in FIG. B), or more. As described above, the target of the unit work w and the collective work W is a kitchen roll, a book,
The present invention relates to a technique for packing so-called caramel packaging of such a collective work W with a strong wrapping paper such as kraft paper.

[0002]

2. Description of the Related Art Conventionally, when several tens of toilet rolls, kitchen rolls, books, and the like are transported, they are placed in a cardboard box. Therefore, it has been considered to perform so-called caramel packaging in which unit works such as toilet rolls are arranged in two rows of three to six in each row, and wrapped in strong wrapping paper such as kraft paper.
As a conventional example of the caramel packaging, there is a technique for handling books, which is described in Japanese Patent Application Laid-Open No. 1-226512. In this prior art, a work in which books are stacked is placed on a flat surface, and wrapping paper is wound around three surfaces of the work, and then the fourth work is performed.
On the surface, the upper folding board and the lower folding board are moved up and down, and the wrapping paper is wound along the body. Thereafter, the not-yet-folded end portion of the wrapping paper will be folded along the side of the work to complete the caramel packaging, but no specific means is disclosed.

[0003]

DISCLOSURE OF THE INVENTION In view of the above circumstances, the present invention has been made in consideration of the above circumstances, and a box-type packaging machine capable of tightly packaging a soft work such as a toilet roll or a kitchen roll without deforming the work. It is an object of the present invention to provide a side folding device.

[0004]

According to a first aspect of the present invention, there is provided a side-folding device for a box-shaped packaging machine, wherein four surfaces of a front surface, a top surface, a rear surface, and a bottom surface of a collective work in which unit works are arranged in a fixed number of two rows. A device for folding an unfolded portion of the ear end of a wrapping paper, wherein a first folded plate, a second folded plate, and a third folded plate are sequentially arranged in the order in which the collective work is sent from the entry side to the exit side. And a transport mechanism for transporting the work from a position short of the first folded plate to a position where the third folded plate exits the third folded plate. The second folded plate is a member that folds the front side portion of the ear end of the wrapping paper backward,
The third folded plate has the upper part of the ear end of the wrapping paper facing downward,
A conveyor for supporting the lower surface of the collective work and conveying the work from the input side to the output side, and a conveyor for supporting the lower surface of the collective work from the input side to the output side, and pressing the upper end of the collective work from the input side to the output side. And a lower pusher that pushes the lower end of the collective work and transfers it from the entry side to the exit side. According to a second aspect of the present invention, in the box-type wrapping machine according to the first aspect, the first folded plate is a horizontal slide unit that moves in a depth direction of the collective work, and the collective work is mounted on the horizontal slide unit. And a folding plate connected to the distal end of a rod of the telescopic cylinder. The side folding device in the box type packaging machine according to claim 3 is the invention according to claim 1, wherein
A second folding plate is connected to a slide unit that moves in the front-rear direction of the collective work, and a work position for performing the folding operation on the collective work being folded by the first folding plate, and the third folding from there. It is characterized by reciprocating movement between a retracted position adjacent to the plate. According to a fourth aspect of the present invention, the upper pusher of the transport mechanism is disposed at a transport start point and a transport end point at a height of an upper end portion of the collective work. Guide sprockets on the entry and exit sides, drive sprockets arranged in place, a chain wound around these sprockets, and a push plate attached in place on the chain, and a lower pusher, Guide sprockets on the entry side and the exit side arranged at the transfer start point and the transfer end point at the height of the lower end of the collective work,
It is characterized by comprising a drive sprocket disposed in a proper position, a chain wound around these sprockets, and a push plate mounted in a proper position on the chain.

According to the first aspect of the present invention, when the collective work is sent from the entry side to the exit side of the folding device, the ear end portion of the wrapped wrapping paper is the first folded plate and the rear portion is folded. Rare
The front part is folded in the second folded plate, and the upper and lower parts are folded in the third folded plate, and can be packed in a box shape. During this packaging process, in addition to feeding on the conveyor, the upper pusher pushes the upper end of the collective work, and the lower pusher pushes the lower end of the collective work. Caramel packaging is possible without collapse.
According to the invention of claim 2, by operating the horizontal slide unit with the first folded plate, it is possible to match the depth dimension of the collective work of various sizes. For this reason, the side of the wrapping paper can be reliably and neatly folded. According to the third aspect of the present invention, when the rear surface of the ear end portion of the wrapping paper is folded by the first folded plate, the second folded plate approaches the collective work and the front portion of the ear end portion is folded. . During this time, the collective work has stopped. Next, when the collective work is sent to the third folded plate, the second folded plate can be moved in the same direction synchronously, so that the already folded ear end portion can be guided to the third folded plate while being held in the folded state. . Therefore, the ear end portion can be reliably folded vertically by the third folded plate. According to the invention of claim 4, the push plate of the upper pusher is located at the position pushing the rear end of the upper end of the collective work, and the push plate of the lower pusher is located at the position pushing the rear end of the lower end of the collective work. Can be sent without losing shape. For this reason, tightly tied caramel packaging becomes possible.

[0006]

Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic side view of a side folding device according to an embodiment of the present invention, FIG. 2 is a sectional view taken along line II of FIG. 1, FIG. 3 is a sectional view taken along line III of FIG. Figure 1
5B is a side view of the first folded plate, and FIG.
(A) is a plan view of the second and third fold plates, (B) is a side view of the second and third fold plates, and FIG. 6 is an explanatory view of folding the first fold plate. 7 is an explanatory diagram of the folding operation of the second folded plate, FIG. 8 is an explanatory diagram of the folding operation of the third folded plate, FIG. 9 is an explanatory diagram of the sealing operation, and FIG. 10 is an overall side view of the box-shaped packaging machine to which the present invention is applied. FIG. 11 is an overall plan view of the box-type packaging machine, FIG. 12 is a perspective view of a unit work and a collective work, and FIG. 13 is a perspective view showing a work packed in caramel. First, the overall configuration of the box-type packaging machine will be described with reference to FIGS. This box-shaped packaging machine is roughly composed of a wrapping paper supply device D, a work parallel supply device A, a body winding device B, a side folding device C, and a dispensing device E.

The wrapping paper supply device D is configured as follows. R1 on the right side of the drawing is a roll of the exterior paper p, R2
Is a roll of the waterproof film f. The outer paper p is made of durable kraft paper or the like that is easy to display advertisements and printing of the source, and the waterproof film f is a polyethylene film having excellent waterproof function. The exterior paper p and the waterproof film f are sandwiched between the pinch rolls 101 to form a waterproof film laminated wrapping paper S. In the present invention, any wrapping paper S can be used, and of course, non-laminated paper may be used. The pinch roll
A cutter 102 is provided on the left side of the drawing 101, and the wrapping paper S is cut into an appropriate length by the cutter 102.
This length may be appropriately changed depending on the length of the work to be packed.

The body winding device B is constructed as follows. An adhesive application gun 4 is provided on the left side of the cutter 102 in the figure, and a first conveyor 2 is provided on the left side of the adhesive application gun 4 in the figure. The wrapping paper S cut to a predetermined length by the cutter 102 is sequentially fed by a pinch roll 101 and a first conveyor 2. The main body of the body winding device B is installed on the left side of the first conveyor 2 in the figure, and the second conveyor 3 is arranged on the left side of the figure in the figure. The wrapping paper S is wound around four surfaces of the collective work W by the body winding device B (see FIG. 13A).

[0009] The work parallel constant supply device A is configured as follows. This is a device for supplying a work from a direction orthogonal to the line of the box-shaped packaging machine, and is connected to the body winding device B. This work parallel supply device A is a device that feeds a work in a fixed quantity in parallel.
This is an apparatus that executes a process for preparing so-called caramel packaging. Then, in the body winding device B, body winding is performed in which the front, upper, rear, and lower surfaces of the collective work W in which the unit works w are arranged in two rows are wrapped with wrapping paper. The side folding device C is configured as follows.
This is an apparatus that folds the unwrapped portion of the wrapping paper after the body winding, that is, the ear end portion, and wraps the remaining two surfaces of the collective work. After passing through the body winding device B and the side folding device C, the box-shaped work is completely wrapped on its six sides with wrapping paper S, so-called caramel wrapping. The dispensing device E is configured by a conveyor or the like that dispenses the packaged work to the next process.

Next, based on FIG.
Will be described in detail. Reference numeral 41 denotes a first feed conveyor of the collective work W, which is arranged at a rear portion of the apparatus C. A second feed conveyor 42 is disposed at a front portion of the apparatus C at an interval from the first feed conveyor 41. Along the feed direction of the first and second feed conveyors 41 and 42, that is, from the entry side to the exit side, the first folded plate 50,
A second folded plate 60, a third folded plate 70, and a sealing machine 80 are arranged. Each of the folded plates 50, 60, 70 and the sealing machine 80 is provided as a pair of left and right sides facing the back side and the front side of the box-shaped work W.

As shown in FIGS. 1 and 2, the first folded plate 50 includes a pair of left and right sides, and each of the left and right sides includes an upper first folded plate 50A and a lower first folded plate 50B. Each of the upper and lower folded plates 50A and 50B is composed of a horizontal slide unit 51 that slides in the width direction, a telescopic cylinder 55 that expands and contracts forward, backward, left and right, and a folded plate 59. More specifically, as shown in FIG. 4, the slide unit 51 includes a slide rail 52 and a slider 53.
The cylinder body 56 of the telescopic cylinder 55 is mounted on the slider 53. A guide rod 58 for guiding the expansion and contraction of the rod 57 is attached to the cylinder body 56, and guides the expansion and contraction of the folded plate 59 straight. And
A folded plate 59 is attached to the tip of the rod 57 via an appropriate connecting member.
Is installed. The folded plate 59 is a plate-shaped member having a portion parallel to the side surface of the box-shaped work. With the above configuration, the folded plate 59 is moved by moving the slider
Of the telescopic cylinder 55 to extend the rod 57 of the telescopic cylinder 55 to move the folded plate 59 forward (arrow b).
Direction).

As shown in FIGS. 1 and 3, the second folded plate 60 is provided as a pair of left and right sides, and each of the left and right sides comprises an upper second folded plate 60A and a lower second folded plate 60B. The upper and lower folded plates 60A and 60B are configured to reciprocate back and forth by a slide unit 61 that slides in the front and rear direction.
More specifically, as shown in FIG. 5, the slide unit 61 includes a slide rail 62 and a slider 63, and the folded plate 64 is connected to the slider 6 via an appropriate connecting member.
3 is connected. The folded plate 64 is a plate-like member parallel to the side surface of the box-shaped work. With the above configuration, when the slider 63 moves forward, the upper and lower folded plates 64 are located at the folding positions close to the forward position of the first folded plate 50, and when retracted, they are retracted close to the third folded plate 70 described later. Position.

As shown in FIGS. 1 and 5, the third folded plate 70 is provided as a pair on the left and right sides, and each of the left and right is composed of an upper third folded plate 70A and a lower third folded plate 70B. The upper third folded plate 70A is a triangular plate-shaped member, and the oblique side 71 is inclined downward from the rear to the front. This hypotenuse 71 is
When the collective work W moves forward, it acts so as to fold the upper surface portion, which is an unwrapped ear end portion, downward. 3rd folded plate
70B is a triangular plate-like member, and the oblique side 72 is inclined upward from the rear to the front. This hypotenuse 7
2 acts so that the lower surface part which is an unwrapped ear end part is folded upward when the collective work W advances.

As shown in FIG. 1, the collective work W is fed forward by the first and second feed conveyors 41 and 42. The apparatus further includes an upper pusher 43A and a lower pusher 43A. A pusher 43B is provided. The upper pusher 43A includes a guide sprocket 44a disposed on the entrance side of the apparatus C at the height of the upper end of the collective work W, a guide sprocket 45a disposed on the exit side of the apparatus C at the same height, and A drive sprocket 46 provided at an appropriate position of the device C
a, a chain 47a wound around them, and a push plate 48a attached to an appropriate position of the chain 47a. A guide sprocket 44b disposed on the exit side of the apparatus C at the height of the lower end of the collective work W;
A guide sprocket 45b arranged at the same height on the exit side of the device C, and a chain 47b wound around the guide sprockets 45b;
And a push plate 48b mounted in place on the chain 47b. A suitable feed table is placed between the first feed conveyor 41 and the second feed conveyor 42. The collective work W sent into the first feed conveyor 41 from the body winding device B shown in FIG. 10 is advanced on the first feed conveyor 41 by the first feed conveyor 41 and the upper and lower pushers 43A and 43B. The space between the first feed conveyor 41 and the second feed conveyor 42 is advanced by upper and lower pushers 43A and 43B, and is fed into the second conveyor 42. As described above, the collective work W being transported
Is pressed by the pressing plates 48a and 48b having a low surface pressure on the upper and lower ends of the rear surface thereof, so that even the soft collective work W can be conveyed without being deformed during feeding, and the edge end portion of the wrapping paper. Can be reliably folded.

A pair of sealing machines 80 shown in FIG. This sealing machine 80
Is a known attaching machine that applies a gum tape 82 so that the tape is fed from a raw material roll 81 of the gum tape and the ear ends of the wrapping paper folded on the side surface of the collective work W are joined to each other. At a position on the outlet side of the sealing machine 80, a conveyor of the dispensing device E that sends out the packaged workpiece W to the next process is connected to the second feed conveyor 42 in the orthogonal direction.

Next, a method of folding the side of the wrapped wrapping paper will be described with reference to FIGS. (1) First, as shown in FIG. 6, the collective work W is sent onto the first feed conveyor 41. At this time, collective work W
As shown in FIG. 13A, a wrapping paper S is wound around the front, top, rear, and bottom surfaces of the wrapping paper S. 1st folded plate 50
Is horizontally slid according to the depth dimension of the collective work W, and then the folded plate 59 is advanced. With this operation, the rear surface portion S1 of the ear end portion of the wrapping paper S is folded along the side surface of the collective work W. (2) As shown in FIG. 7, the folded plate 64 of the second folded plate 60 slides horizontally according to the depth dimension of the collective work W, and then retracts in the direction in which the collective work W is located (the direction of the arrow). By this operation, the front portion S of the ear end portion of the wrapping paper S is
2 is folded on the rear surface portion S1 along the side surface of the collective work W. (3) As shown in FIG. 8, the collective work W is advanced by the first feed conveyor 41 and the upper and lower pushers 43A and 43B, and the ear end portion is passed along the third folded plate 70. By this operation, the upper surface portion S3 of the ear end portion of the wrapping paper S is moved to the upper third folded plate 70.
A is folded downward at the oblique side 71 of A, and the lower surface S4 is folded upward at the oblique side 72 of the lower third folded plate 70B. (4) As shown in FIG. 9, when the collective work W is further advanced by the upper and lower pushers 43A and 43B, the gum tape 82 is attached to the portion where the wrapping paper S is folded in the side by the sealing machine 80. Thereby, the caramel packaging is temporarily ended. In addition, if a tape attaching machine is separately provided and the gum tape 83 is attached to the overlapping portion of the wrapped wrapping paper as shown in FIG. 13 (B), the wrapping becomes stronger and the entry of dust and the like can be achieved. Can be prevented. The assembled workpiece W that has been packaged is sent to the conveyor of the dispensing device E by the second feed conveyor 42, and is then discharged to the next process.

[0017]

According to the first aspect of the present invention, when the collective work is sent from the entry side to the exit side of the folding device, the ear end portion of the body-wrapped wrapping paper is formed by the first folded plate at the rear portion. Is folded in, the front part is folded in the second folded plate, and the upper and lower parts are folded in the third folded plate, and can be packed in a box shape. During this packaging process, in addition to feeding on the conveyor, the upper pusher pushes the upper end of the collective work, and the lower pusher pushes the lower end of the collective work. Caramel packaging is possible without collapse. According to the invention of claim 2, by operating the horizontal slide unit with the first folded plate, it is possible to match the depth dimension of the collective work of various sizes. For this reason, the side of the wrapping paper can be reliably and neatly folded. According to the third aspect of the present invention, when the rear surface of the ear end portion of the wrapping paper is folded by the first folded plate, the second folded plate approaches the collective work and the front portion of the ear end portion is folded. . During this time, the collective work has stopped. Next, when the collective work is sent to the third folded plate, the second folded plate can be moved in the same direction synchronously, so that the already folded ear end portion can be guided to the third folded plate while being held in the folded state. . Therefore, the ear end portion can be reliably folded vertically by the third folded plate. According to the invention of claim 4, the push plate of the upper pusher is located at the position pushing the rear end of the upper end of the collective work, and the push plate of the lower pusher is located at the position pushing the rear end of the lower end of the collective work. Can be sent without losing shape. For this reason, tightly tied caramel packaging becomes possible.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a side folding device according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II of FIG.

FIG. 3 is a sectional view taken along line III of FIG. 1;

4A is a plan view of a first folded plate, and FIG. 4B is a side view of the first folded plate.

FIG. 5A is a plan view of a second folded plate and a third folded plate, and FIG.
The figure is a side view of the second folded plate and the third folded plate.

FIG. 6 is an explanatory view illustrating folding of a first folded plate.

FIG. 7 is an explanatory view of a folding operation of a second folded plate.

FIG. 8 is an explanatory view of a folding operation of a third folded plate.

FIG. 9 is an explanatory diagram of a sealing operation.

FIG. 10 is an overall side view of a box-type packaging machine to which the present invention is applied.

FIG. 11 is an overall plan view of the box-type packaging machine.

FIG. 12 is a perspective view of a unit work and a collective work.

FIG. 13 is a perspective view showing a work packaged in caramel.

[Explanation of symbols]

 41 1st feed conveyor 42 2nd feed conveyor 43A Upper pusher 43B Lower pusher 50 1st folded plate 60 2nd folded plate 70 3rd folded plate

Claims (4)

[Claims] 1. An apparatus for folding an unfolded portion of an ear end of a wrapping paper in which four surfaces of a front surface, an upper surface, a rear surface, and a lower surface of a collective work in which unit works are arranged in two rows by a fixed number are arranged. The first folded plate, the second folded plate, and the third folded plate are arranged in this order along the order in which the collective work is sent from the entry side to the exit side, and the work is placed in front of the first folded plate in the third direction. A transport mechanism is provided for transporting the folded sheet until it leaves the folded sheet. The first folded sheet is a member that folds a rear portion of the ear end of the wrapping paper toward the front, and the second folded plate is a member that folds the wrapping paper. The third folded plate is a member that folds the front end portion of the end toward the rear, and the third folded plate folds the upper end of the ear end of the wrapping paper downward, and the lower portion toward the upper side, A conveyor for supporting the lower surface of the collective workpiece and transporting it from the entrance side to the exit side; A box-type packaging machine comprising: an upper pusher that pushes an upper end of a workpiece to transfer from an entry side to an exit side; and a lower pusher that pushes a lower end of the collective workpiece to transfer from an entry side to an exit side. Side folding device. 2. A horizontal slide unit in which the first folded plate moves in the depth direction of the collective work, a telescopic cylinder which moves on the horizontal slide unit in a longitudinal direction of the collective work, and a tip of a rod of the telescopic cylinder. 2. A side folding device in a box-shaped packaging machine according to claim 1, comprising a folded plate connected to the box. 3. The work position at which the second folded plate is connected to a slide unit that moves in the front-rear direction of the collective work, and the folding work is performed on the collective work being folded by the first folded plate. 2. The side-folding device according to claim 1, wherein the device reciprocates from there to a retreat position adjacent to the third folded plate. 4. An upper pusher in the transport mechanism,
Guide sprockets on the entrance side and the exit side arranged at the conveyance start point and the conveyance end point at the height of the upper end of the collective work, the drive sprockets arranged in place, and the chain wound around these sprockets A push plate attached to an appropriate position of the chain, and a lower pusher is provided with guide sprockets on the entrance side and the exit side arranged at the transport start point and the transport end point at the height of the lower end of the collective work. 2. A side surface in a box-type packaging machine according to claim 1, comprising: drive sprockets disposed at appropriate positions; a chain wound around these sprockets; and a push plate mounted at appropriate positions on the chain. Folding device.