JPH1081308A - Packaging machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten the cycle time of a packaging machine by improving a machanism for horizontal perforation and thus to make it possible for an injection making machine to demonstrate fully the molding ability ad to increase production efficiency as to a packaging machine for packaging a thin resin spoon, etc., supplied to a consumer set with sweets such as yogurt in a cup or powdered milk in a can. SOLUTION: This packaging machine is provided with a receiving roller 40 and a horizontal perforation roller 42 which are placed parallel to each other along the width direction of a packaging sheet S and rotate synchronizingly inserting the packaging sheet S. Many grooves 40a-40a are formed along the peripheral direction on the periphery of the receiving roller 40, and a plurality of horizontal perforation cutters 42b-42b are provided radially on the horizontal perforation roller 42 along the axis. As both rollers 40, 42 rotate synchronizingly, each horizontal perforation cutter 42b touches the receiving roller 40 traversing many grooves 40a-40a one by one, and perforates the packaging sheet S horizontally.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thin spoon made of a resin which is set in, for example, confectionery such as yogurt in a cup or powdered milk in a can and supplied to a consumer (hereinafter simply referred to as "work"). ) For packaging machines.

[0002]

2. Description of the Related Art Usually, for example, this kind of work is formed by injection molding, for example, forty pieces in one shot, and after opening the mold, take it out of the mold at a time by a take-out machine. It is put into the machine and packed one by one.

[0003] Forty workpieces W to W are usually, for example, shown in FIG.
Packaged as shown. That is, 40 works W to W are sandwiched between the upper sheet SU and the lower sheet SL in a state of being arranged in two rows and twenty columns, and both upper and lower sheets SU,
The SLs are welded in a grid pattern as shown by the hatched portions in the figure, whereby the works W are sealed one by one in each of the airtightly partitioned spaces. Also, as shown by broken lines in the figure, along the center of each width of the grid-like welded portion 2, horizontal perforations (hereinafter, simply referred to as “horizontal perforations”) 3 to 3 and vertical perforations. (Hereinafter, simply referred to as "vertical perforations") 4 and cut along the same, the airtightly packaged works W to W can be separated one by one, which makes it possible to provide convenience to the customer at the stage of providing them. It can be planned.

[0004] Forty workpieces W to W are arranged in two horizontal rows and one vertical row.
It is cut into 20 pieces of 0 rows each and is packed in a box of this size before shipment. As described above, in the shipping stage, the 20 workpieces W to W are kept in a single sheet state through the perforations 3 to 3 and 4, so that from the shipping stage to the providing stage to the consumer. The convenience of handling during the period is designed. In the following description, “2 rows and 20 columns” or “2 rows and 10 columns” means works W to W
In the state of alignment.

A conventional packaging machine 100 for packaging a large number of works W to W as described above, for example, as shown in FIG. 4, is designed to collect 40 works W to W supplied from a take-out machine (not shown). An aligning device 110 for aligning two horizontal rows and 20 vertical columns, and a transfer device 120 for sequentially supplying the workpieces W to W to the packaging process of the packaging machine main body from the alignment device 110
And a sheet forming roller 1 for forming the lower sheet SL.
30 and upper and lower welding rollers 140 and 14 for welding the lower sheet SL fed from the sheet forming roller 130 in a grid-like manner while covering the upper sheet SU.
1, a perforated roller 150 for vertically perforating the upper and lower sheets SU, SL thus welded (hereinafter referred to as “packaging sheet S”) along the horizontal center thereof; Insert perforations 3 to 3 in the horizontal direction,
Further, a horizontal perforation device 160 for cutting the packaging sheet S in ten rows in a vertical direction was provided.

The aligning device 110 has a shutter 111a which can be opened and closed on the bottom surface, and has a grid-like partitioning frame 11 for aligning 40 works W to W in two rows and twenty columns.
1b, and an alignment conveyor 112 for transporting the forty works W to W arranged by the jig 111. On the conveying surface of the alignment conveyor 112, a partition frame 112a for maintaining the alignment state of the works W to W is formed. Forty works W to W aligned in the receiving jig 111 operate the shutter 111a. When opened, the workpieces are dropped on the alignment conveyor 112 at one time, and enter the partitioning frame 112a one by one, and the forty works W to W are aligned on the alignment conveyor 112.

The workpieces W to W aligned on the alignment conveyor 112 are transported by a plurality of vacuum pads 1 during the transportation process.
20a to 120a are sequentially transferred to the packaging machine main body side (left side in the figure) by a transfer device 120 which is attached to an endless belt at a predetermined interval.

The sheet forming roller 130 is for vacuum-adsorbing and heating the lower sheet SL pulled out from the lower sheet roller 131 and forming the concave portions 131a to 131a for accommodating the works W to W one by one. Immediately after the concave portion 131a is formed by the sheet forming roller 130, each of the concave portions 131a to
The work W is transferred one by one to 131a. Each recess 13
1a, the upper sheet SU pulled out from the upper sheet roller 132 is put on the upper surface of the lower sheet SL, and then the upper and lower welding rollers are stacked in a state where both sheets SU and SL are overlapped. 140, 141, and are heated and pressed at this stage, and both sheets SU, SL
Are welded in a grid pattern as described above, and the packaging sheet S
Is formed.

Thus, the upper and lower welding rollers 140, 141
After passing through the gap, the vertical perforation 4 is inserted into the welded portion 2 of the packaging sheet S along the center in the horizontal direction by the vertical perforation roller 150. The vertical perforations 4 are continuously inserted by rotating the vertical perforation roller 150 while continuously feeding the packaging sheet S.

[0010] Thereafter, horizontal perforations 3 to 3 are put in nine vertical rows in the packaging sheet S by the horizontal perforation device 160.
Thereafter, it is cut in the tenth column. This horizontal perforation device 1
60 has a cutter receiving roller 161 and a saw blade-shaped horizontal perforated blade 162, and moves the horizontal perforated blade 162 up and down with a constant stroke while feeding the cutter receiving roller 161 at a pitch, so that the packaging sheet S 1 at regular intervals
The horizontal perforations 3 to 3 are inserted from the row to the ninth row, and the lower limit of the stroke of the horizontal perforation blade 162 is increased in the vertical tenth row to cut deeper.

In order to insert the horizontal perforations 3 to 3 or cut at the tenth vertical line, the horizontal perforation apparatus 160 needs to feed the packaging sheet S at a constant pitch, while As described above, the packaging sheet S is continuously fed because it is not necessary until the stage where the vertical perforations 4 are formed. For this reason, the wrapping sheet S is provided with a slack SA between the vertical perforation roller 150 and the horizontal perforation device 160, thereby absorbing a difference in the feed speed between the continuous feed speed and the pitch feed speed. Was.

[0012]

According to the conventional packaging machine 100 configured as described above, one horizontal perforated blade 1 is provided.
Since the perforation 62 is moved up and down to insert the horizontal perforations 3 to 3, the packaging sheet S needs to be pitch-fed (intermittently stopped). Therefore, the feeding speed of the packaging sheet S in the horizontal perforation apparatus 160 is as follows. Vertical perforated roller 150
The feeding speed must be lower than the feeding speed of the sheet S. As a result, the slack SA is provided on the packaging sheet S between the vertical perforation roller 150 and the horizontal perforation device 160 so that the feeding speed between the two processes can be reduced. The difference was being absorbed. As described above, since the slack SA is provided in the middle of the transport of the packaging sheet S, the transport path becomes longer by that amount, and thus the length of the packaging machine 100 becomes longer, making it difficult to reduce the size of the packaging machine 100. .

Further, although the slack SA is provided on the packaging sheet S to absorb the difference between the feed speeds of the continuous feed and the pitch feed, the continuous feed speed is eventually reduced to accommodate the horizontal perforated blades 3 to 3. Therefore, the cycle time of the packaging machine 100 has to be suppressed to a certain time or less, and as a result, the molding ability of the injection molding machine cannot be sufficiently exhibited. there were.

The present invention has been made in view of the above-mentioned conventional problems, and is a packaging machine capable of shortening the cycle time, sufficiently exerting the molding ability of the injection molding machine, and reducing the size thereof. The purpose is to provide.

[0015]

For this reason, in the packaging machine according to the first aspect of the present invention, a plurality of works are sandwiched between an upper sheet and a lower sheet for packaging to form a packaging sheet. A packing machine for inserting a horizontal perforation for separating a work in a packaging state, comprising a receiving roller and a horizontal perforation that are arranged in parallel with each other along a width direction of the packaging sheet, and synchronously rotate while sandwiching the packaging sheet. A plurality of grooves are formed on the peripheral surface of the receiving roller along the circumferential direction, and a plurality of horizontal perforation blades are radially provided along the axis on the horizontal perforation roller, and the two rollers are synchronized with each other. The configuration is characterized in that each horizontal perforation blade is sequentially brought into contact with the receiving roller across the plurality of grooves with the rotation, and a horizontal perforation is formed in the packaging sheet.

According to this packaging machine, the receiving roller and the horizontal perforation roller rotate synchronously to continuously feed the packaging sheet, and the horizontal perforation can be formed in the packaging sheet. Need not be stopped (pitch feed), so that the cycle time of the packaging machine can be greatly reduced by making the single continuous feed speed sufficiently high as a whole, thereby sufficiently increasing the molding capability of the injection molding machine. To greatly increase the work production efficiency.

Further, since the feeding speed does not change during the process, it is not necessary to set the slack of the packaging sheet as in the prior art, thereby shortening the machine length and making the packaging machine compact.

According to a second aspect of the present invention, there is provided the packaging machine according to the first aspect, wherein a plurality of grooves are formed in the receiving roller at a linear portion along the axis of the receiving roller. And cutting the packaging sheet by contacting the horizontal perforation blade of the horizontal perforation roller with the groove break.

According to this packaging machine, while the packaging sheet is continuously fed by synchronous rotation of the two rollers, horizontal perforations are formed at regular intervals, and after horizontal perforations are formed at predetermined locations, one sheet is obtained. The packaging sheet is cut in the width direction by contacting the horizontal perforation blade with the cut-off portion of the groove of the receiving roller. As described above, it is not necessary to temporarily stop the packaging sheet at the point of cutting the packaging sheet as in the related art. Therefore, the cycle time of the packaging machine can be reduced also in this point.

Further, since the conventional packaging machine is configured to cut the packaging sheet by increasing the lower limit of the stroke of the horizontal perforation blade, it is necessary to switch the stroke of the horizontal perforation blade in two stages. Although the structure is complicated in this respect, according to the packaging machine of the second aspect, the receiving roller and the horizontal perforation roller are rotated synchronously to form a horizontal perforation, and at a predetermined position. Since it is cut, the same packaging form as that of the related art can be achieved with a higher speed and a simple configuration.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described with reference to FIGS.
This will be described with reference to FIG. As for the workpieces W to W to be packaged by the packaging machine 10 of the present embodiment, 40 pieces are formed by one shot by an injection molding machine, and after the mold is opened, the 40 workpieces W to W are formed.
W is taken out of the die by the take-out machine, and is set as it is on the work set conveyor 21 of the packaging machine 10 of the present embodiment described below.

It should be noted that the injection molding machine, the mold and the take-out machine do not need to be changed in particular in practicing the present invention, and are not shown and described. However, the take-out machine is ejected from the cavity of the mold. Each of the forty workpieces W to W, each of which has been gate-cut, is sucked and held by a vacuum pad, and the workpieces are placed in the work set conveyor 21 of the packaging machine 10 in the aligned state.
It is configured to be set directly to.

Also, the packaging machine 10 of the present embodiment
Each of the workpieces W to W is finally packed in the same form as the conventional one (see FIG. 5). In this respect, the same reference numerals are given to the names of the members that do not need to be changed.

As shown in FIG. 1, the packaging machine 10 of this embodiment includes a work set conveyor 21 and a set table 22 for receiving the work set conveyor 21 from below. The work set conveyor 21 has a timing belt type conveyor belt 21c stretched between drive pulleys 21a and 21b. Partition frames 21d to 21d are formed.

The lower sheet SL pulled out from the lower sheet roller 23 is drawn between the driving pulley 21a of the work set conveyor 21 and the pressing roller 25 via the guide rollers 24 to 24. A cushion member is wound around the peripheral surface of the pressing roller 25. For this reason, the lower sheet S
L is pressed against the transfer surface of the transfer belt 21 c by the pressing roller 25, and the transfer surface and the partition frame 2 are pressed.
It is supplied to the upper side of the set table 22 in a wavy shape along 1d to 21d.

The drive pulleys 21a and 21b and the pressing roller 25 are rotated synchronously via a single drive motor and a power transmission mechanism mainly composed of a gear train (not shown). The lower sheet SL is pulled out from the lower sheet roller 23 by the pressing roller 25 and the conveying belt 21 c rotating in synchronization in this sandwiched state. In addition,
In the vicinity of the lower sheet roller 23, a spare lower sheet roller 23a is set.

The set table 22 has a box shape, and the connection port 2
A large number of suction holes formed on the upper surface and the conveyor belt 21c are formed by a vacuum device (not shown) connected to
The lower sheet SL supplied to the upper surface of the transport belt 21c is sucked through the multiple suction holes formed in the lower portion of the transport belt 21c, whereby the lower sheet SL is separated from the partition frames 21d to 21d of the transport belt 21c.
A concave portion 131a (see FIG. 4) for setting the work W is formed by being sucked and held in a wavy shape along the line.

The lower sheet SL supplied in such a state
Are set directly from the mold by the take-out machine. This work set conveyor 21
A part of the transfer surface is exposed at the upper opening of the case 11 of the packaging machine 10, and the exposed portion is a work set position 20. 4 in this work set position 20
Zero works W to W are set at a time. Work W ~
Two Ws are set side by side between the two partition frames 21d. Therefore, at least 20 rows of partition frames 21d to 21d are located at the work W to W setting positions. As a result, the work set conveyor 21 has 40 works W to W formed at a time in one shot. , Are set at a time in an aligned state of 2 rows and 20 columns.

The setting of the works W to W is performed while the set conveyor 21 is temporarily stopped. After the work setting, the set conveyor 21 is restarted, so that the set works W to W are carried into the packaging machine 10 through the packaging process entrance 10a together with the lower sheet SL. At the packaging process entrance 10a, the lower sheet SL
Is superimposed on the upper sheet SU. The upper sheet SU is
The sheet is fed by the sheet feed roller 32 from the upper sheet roller 30 via the guide rollers 31 to 31. The fed upper sheet SU is superimposed on the lower sheet SL via the guide rollers 34 to 34 while being maintained at an appropriate tension by the tension roller 33. A spare upper sheet roller 30a is also provided near the upper sheet roller 30.

The superposed lower sheet SL and upper sheet S
U is sandwiched between the driving pulley 21b of the set conveyor 21 and the temporary welding roller 35 in the superposed state, and is heated at a relatively low temperature along the lattice-shaped portion avoiding each work W. And temporarily welded in spots,
Thereafter, the packaging sheet S is separated from the work set conveyor 21 and is sandwiched between the main welding rollers 36. The temporary welding roller 35 and the main welding rollers 36, 3
6 also rotate in synchronization with the drive pulleys 21a and 21b using the drive motor as a drive source.

After the upper sheet SU and the lower sheet SL are temporarily welded, they separate from the set conveyor 21 and are released from being held by suction on the conveyor chute 22 and caught by the driving pulley 21b and the temporary welding roller 35. As described above, at this stage, both sheets SU, S
Since L is provisionally welded, it does not deviate from each other, so that the alignment of the workpieces W to W is maintained.

By being sandwiched between the main welding rollers 36, 36, the packaging sheet S is completely welded. The main welding is performed at a higher temperature than the temporary welding. In this manner, the main welding that requires heating at a high temperature
c is not preferable in consideration of the heat resistance of the conveyor belt 21c, so that the upper sheet SU and the lower sheet SL
Is divided into two stages of temporary welding and main welding, so that the temporary welding that is sufficient at a lower temperature is performed at the stage on the conveyor belt 21c where the positional relationship between the two sheets SU and SL is well maintained. The alignment state of W to W can be fixed.

The packaging sheet S completely welded by the two welding rollers 36, 36 is then provided with vertical perforations 4 and horizontal perforations 3 to 3, and is further cut into 10 vertical rows (FIG. 5). reference). As shown in FIG. 1, a receiving roller 40, a vertical perforation roller 41, and a horizontal perforation roller 42 are intensively arranged on the left side of the main welding rollers 36, 36.
These rotate synchronously using the drive motor as a drive source.

As shown in FIG. 2, the receiving roller 40 has a cylindrical shape and is arranged in a bridging manner in the width direction of the packaging sheet S. On the peripheral surface of the receiving roller 40, a large number of grooves 40a to 40a are formed in parallel at regular intervals in the axial direction. All the groove portions 40a to 40a are interrupted at one position in the circumferential direction, and the respective groove interrupted portions 40b to 40
b is located on one straight line along the axis of the receiving roller 40.

The longitudinal perforation blade 41a of the vertical perforation roller 41 is pressed between the grooves 40a at the center of the receiving roller 40 in the longitudinal direction. This vertical perforated blade 4
1a has a flange shape formed in a protruding shape along the peripheral surface of the vertical perforation roller 41, and a number of grooves 41b to 41b are formed in the peripheral edge (cutting edge) at predetermined intervals in the circumferential direction. Have been. The packaging sheet S is sandwiched between the vertical perforation roller 41 and the receiving roller 40, and the packaging sheet S is fed while the vertical perforation roller 41 and the receiving roller 40 rotate synchronously. , The widthwise center of the workpieces W,
A vertical perforation 4 is formed along the vertical welded portion 2 between W (see FIG. 5).

The horizontal perforation roller 42 includes a receiving roller 40
On the peripheral surface of a cylindrical mandrel 42a having substantially the same length as the above, ten horizontal perforated blades 42b to 42 forming a flat plate shape are provided.
b, each horizontal perforated blade 42b-4
2b are attached radially along the longitudinal direction of the mandrel 42a, and are attached at equal intervals in the circumferential direction of the mandrel 42a.

The diameter of the circumference where the cutting edge of each of the horizontal perforation blades 42b to 42b is located matches the outer diameter of the receiving roller 40, and the groove breaks 40b to 4b of the receiving roller 40.
0b, the circumferential positions of the rollers 40, 42 are set so that one horizontal perforation blade 42b is always in contact with the roller 40b. It is supposed to.

The horizontal perforated roller 4 configured as described above
According to 2 and the receiving roller 40, the nine horizontal perforation blades 42 b to 42 b are moved with respect to the many groove portions 40 a to 40 a of the receiving roller 40 with the synchronous rotation of the rollers 40 and 42.
The transverse perforations 3 and 3 are formed at a constant pitch along the laterally welded portions 2 and 2 of the packaging sheet S sandwiched between the rollers 40 and 42 in such a manner that the transverse perforations 3 and 3 are sequentially crossed in the longitudinal direction. Will be put in. That is, when one horizontal perforated blade 42b abuts in the longitudinal direction of the receiving roller 40,
The wrapping sheet S is cut at the portion without the groove 40a, but the wrapping sheet S is not cut at the portion crossing the groove 40a, whereby one row of the horizontal perforations 3 is formed in the width direction of the wrapping sheet S. Can be put in.

While the packaging sheet S is being fed by the synchronous rotation of the rollers 40 and 42 and nine rows of perforations 3 to 3 are inserted at regular intervals in the feeding direction, the receiving roller 4
When the tenth horizontal perforation blade 42b is brought into contact with the groove discontinuities 40b to 40b of the zero, the groove discontinuities 40b to 40b
Since there is no groove 40a, the packaging sheet S is cut without interruption in the longitudinal direction of the receiving roller 40, whereby the packaging sheet S is cut in two rows and ten columns with respect to the workpieces W to W.

As described above, the rotation of the vertical perforation roller 41 causes the vertical perforation 4 along the center of the packaging sheet S in the width direction.
9 and 9 rows of perforations 3 to 3 are inserted at regular intervals in the feed direction of the packaging sheet S by the rotation of the horizontal perforation roller 42. Thereafter, the packaging sheet S is divided into two horizontal rows and ten vertical rows.
Disconnected by row.

The packaging sheet S in which the workpieces W to W have been cut into 20 pieces in this manner is thereafter carried out of the packaging machine 10 via a carry-out conveyor (not shown), and then sent to a box packing step.

According to the packaging machine 10 configured as described above, forty workpieces W to W formed by the injection molding machine are used.
Is set directly on the lower sheet SL supplied to the work set conveyor 21 by the unloader. Lower sheet SL
Are adsorbed on the upper surface of the conveyor belt 21c of the work set conveyor 21 by the set table 22, and each of the partition frames 21d to 21d
Since the workpieces are supplied in a wavy shape along 1d, two works W, W are set side by side between the partition frames 21d, 21d, and a total of 40 works W to W are set at one time in 20 columns. Thereby, it can be set in the aligned state taken out from the mold of the injection molding machine.

From this, the process of arranging the works W to W can be greatly simplified as compared with the conventional case, so that the cycle time of the packaging machine 10 can be shortened.
Thereby, the waiting time of the injection molding machine can be reduced and the efficiency of the work molding system can be improved.

The upper sheet SU is temporarily welded in a state where the lower sheet SL is sucked and held by the setting table 22 and the recess for work setting is surely maintained. The alignment state of W does not become uneven.

Further, since the conventional receiving jig 111, alignment conveyor 112 or transfer device 120 is not required, an installation space therefor is not required, and the packaging machine 10 can be made compact. Furthermore, the work W to W are packed in a short time, instead of the arrangement in which the work W to W are aligned through a plurality of steps as in the related art, so that a more favorable result can be obtained in terms of hygiene management.

Next, according to the packaging machine 10 of the present embodiment,
The process of inserting the horizontal perforations 3 to 3 is greatly speeded up. That is, according to the packaging machine 10, the packaging sheet S is sandwiched between the receiving roller 40 and the horizontal perforation roller 42, and the two rollers 40, 42 are rotated as they are synchronously to feed the packaging sheet S. Lateral perforations 3 to 3 can be inserted. As described above, since the horizontal perforations 3 to 3 can be inserted without stopping the packaging sheet S, the cycle time of the packaging machine 10 can be significantly reduced also in this regard, and thereby the injection molding machine can be used. The production efficiency of the workpieces W to W can be greatly increased by sufficiently exerting the molding ability.

In this respect, conventionally, one horizontal perforated blade 16
2 is moved up and down to insert the horizontal perforations 3 to 3, so that the packaging sheet S needs to be pitch-fed (intermittently stopped). Therefore, the feeding speed of the packaging sheet S in the horizontal perforation apparatus 160 is as follows. The feed speed must be lower than the feed speed to the vertical perforation roller 150. As a result, in order to absorb the difference in feed speed between the two processes, the feed speed between the vertical perforation roller 150 and the horizontal perforation device 160 is conventionally reduced. The sagging SA is provided on the packaging sheet S. For this reason, it is necessary to provide a certain interval between both processes, and as a result, the length of the packaging machine has been increased. According to the packaging machine 10 of the present embodiment, it is not necessary to provide such a slack SA.
The packaging machine 10 can be made compact by shortening the machine length accordingly.

Although the slack SA is conventionally provided on the packaging sheet S to absorb the difference in the feed speed between the continuous feed and the pitch feed, as a result, the continuous feed speed is reduced to the horizontal perforated blade 3 to 3.
3, so that the cycle time of the packaging machine 100 has to be suppressed to a certain time or less, so that the molding ability of the injection molding machine can be sufficiently exhibited. However, according to the packaging machine 10 of the present embodiment, the packaging sheet S does not need to be pitch-fed at the stage of inserting the horizontal perforations 3 to 3, so that the single continuous feeding speed can be sufficiently increased. Therefore, the molding ability of the injection molding machine can be sufficiently exhibited, and high productivity can be achieved.

Further, since the conventional packaging machine 100 is configured to cut the packaging sheet S by increasing the stroke lower limit of the horizontal perforation blade 162, the stroke of the horizontal perforation blade 162 is switched in two stages. However, according to the packaging machine 10 of the present embodiment, only the receiving roller 40 and the horizontal perforation roller 42 rotate, and the nine rows of horizontal perforations are required. Since 3 to 3 are inserted and cut at the 10th row,
A similar packaging form can be achieved with a faster and simpler configuration.

Various modifications can be made to the embodiment described above. For example, the workpieces W to W are not limited to two horizontal rows, but may be three or more rows or one row. If the number of rows is three or more, two or more vertical perforation rollers 41 to 41 are arranged in the longitudinal direction of the receiving roller 40. 41 may be arranged at predetermined intervals,
In the case of one row, the vertical perforation roller 4 becomes unnecessary, so that the vertical perforation roller 41 can be eliminated.

Further, the packaging sheet S is not limited to the case where the workpieces W to W are cut in ten vertical rows, and the groove breaks 40b to 40b of the receiving roller 40 are formed into two or more straight lines in the circumferential direction. If they are arranged along the vertical direction, they can be cut into, for example, 5 vertical rows or 2 vertical rows instead of 10 vertical rows. Further, the number of horizontal perforated blades 42b to 42b can be changed, or the receiving roller 40 and the horizontal Eye roller 4
By changing the diameter of No. 2 (the diameter of the circumference where the tips of the horizontal perforation blades 42b to 42b are located), the interval between the horizontal perforations 3 and 3 can be changed arbitrarily, and the cutting position (vertical row) Can also be changed arbitrarily.

Therefore, the work W formed in one shot
The number of W is not limited to 40.

[Brief description of the drawings]

FIG. 1 is a view showing an embodiment of the present invention, and shows a packaging machine 10;
It is a side view which shows the internal structure of.

FIG. 2 is a perspective view showing a receiving roller 40 and a vertical perforation roller 41.

3 is a perspective view showing a receiving roller 40 and a horizontal perforation roller 42. FIG.

FIG. 4 is a side view showing a schematic configuration of a conventional packaging machine 100.

FIG. 5 is a plan view of the packaging sheet, showing a state in which 40 spoons for one shot of the molding machine are packaged.

[Explanation of symbols]

 S: packaging sheet, SL: lower sheet, SU: upper sheet 2 ... welded part, 3 ... horizontal perforation, 4 ... vertical perforation W ... work (resin spoon) 10 ... packaging machine 20 ... work set position 21 ... work Set conveyor 21c ... Conveying belt, 21d ... Partition frame 22 ... Set table 25 ... Pressing roller 35 ... Temporary welding roller 36 ... Main welding roller 40 ... Receiving roller 40a ... Groove, 40b ... Groove discontinuity 41 ... Vertical perforated roller 42 ... Horizontal perforation roller, 42b Horizontal perforation blade 100 Conventional packaging machine 111 Receiving jig 112 Aligning conveyor 120 Transfer device 140 Upper welding roller 141 Lower welding roller 150 Vertical perforating roller 160 Horizontal Perforation device

Claims (2)

[Claims] 1. A packaging machine that inserts a plurality of workpieces between an upper sheet and a lower sheet and packages them to form a packaging sheet, and then inserts a horizontal perforation into the packaging sheet to separate each workpiece in a packaging state. A receiving roller and a horizontal perforation roller which are arranged in parallel with each other along the width direction of the packaging sheet and rotate synchronously while sandwiching the packaging sheet, and have a number of grooves formed on a peripheral surface of the receiving roller. While forming along the direction, a plurality of horizontal perforation blades are radially provided along the axis on the horizontal perforation roller, and each horizontal perforation blade sequentially crosses the plurality of grooves with the synchronous rotation of the two rollers. Wherein the packaging sheet is made to perforate a horizontal perforation in the packaging sheet. 2. The packaging machine according to claim 1, wherein the receiving roller is provided with a groove discontinuity in which a number of grooves are formed in a linear portion along the axis of the receiving roller. A packaging machine characterized in that a horizontal perforation blade of a roller is brought into contact with the groove break to cut a packaging sheet.