JP2014213920A - Packaging machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the size of a packaging machine.SOLUTION: A packaging machine 1 is configured to cover an upper face of a product G by a film F stretched to a packaging position PA and then fold the film F stretched around the product G to a bottom face of the product G for packaging, and has a heater 13b. The heater 13b is positioned on a standby position WA where the packed product G is discharged from the packaging position PA and becomes a standby state. The heater 13b deposits the film F folded to the bottom face of the product G.

Description

  The present invention relates to a packaging machine.

  Conventionally, commodities such as fresh food are sold in a state of being packaged by a film. As such a packaging device, for example, a packaging machine as shown in Patent Document 1 (Japanese Patent Laid-Open No. 2003-95208) has been proposed. This packaging machine pushes up an article (product) placed in a container such as a food tray from below the stretched film, covers the upper surface of the product with the film, and then stretches the film around the product. Is folded into the bottom of the product, and the folded film is heat-welded with a heater. Thereby, the packaging of the goods by a film is completed. Subsequently, the packaged goods are transferred to a take-out stand where they wait until they are taken out by an operator.

JP 2003-95208 A

  By the way, in recent years, there is an increasing demand for small packaging machines used on desktops. In this desktop type, the entire packaging machine is required to be more compact, but it is still not sufficient.

  An object of the present invention is to provide a packaging machine that is more compact than ever.

  A packaging machine according to the present invention is a packaging machine that covers a top surface of a product with a film stretched at a packaging position and then folds and wraps the film stretched around the product on the bottom surface of the product, and includes a heater. It becomes. The heater is provided at a standby position where the packaged product is discharged from the packaging position and waits. Further, the heater welds a film folded on the bottom surface of the product.

  In the present invention, a heater is provided at the standby position. Thereby, a packaging machine can be made smaller. In addition, a more compact desktop wrapping machine can be provided to the market.

  Moreover, it is preferable that the packaging machine which concerns on this invention is further equipped with an alerting | reporting part. An alerting | reporting part alert | reports the welding state of the film folded in the bottom face of goods in a standby position. Thereby, the packaged product can be removed from the standby position according to the welding state of the film. As a result, mistakes in film welding can be prevented.

  Moreover, it is preferable that the packaging machine which concerns on this invention is further provided with the determination part. The determination unit determines the welding state of the film at the standby position. Further, the notification unit notifies the exclusion of the product at the standby position based on the determination result by the determination unit. Thereby, even if it does not monitor the welding state of a film, the packaged goods can be removed from a standby position at the optimal timing.

  The packaging machine according to the present invention preferably further includes a weighing device. The weighing device measures the product. The determination unit determines the welding state of the film based on the time that the product is waiting at the standby position and the product weight measured by the weighing device. The completion time of film welding varies depending on the weight of the product. However, according to the present invention, the packaged product can be removed from the standby position at an appropriate timing according to the weight of the product.

  Moreover, it is preferable that the packaging machine which concerns on this invention is further provided with a memory | storage part and a designation | designated part. A memory | storage part memorize | stores the kind of film according to goods. The designation unit designates a product. Moreover, it is preferable that a determination part reads the kind of film corresponding to the goods designated by the designation | designated part from a memory | storage part, and determines the welding state of a film based on the read kind of film. Thereby, even if it is a case where the kind of film used by goods differs, the packaged goods can be removed from a standby position at the timing according to a film.

  Furthermore, the notification unit is preferably a display that displays the completion of the welding process by the heater and the incompleteness of the welding process. Thereby, it is possible to clearly notify the operator of the extraction timing.

  Further, the notification unit may be a light emitting unit that indicates the completion of the welding process by the heater and the incompleteness of the welding process in different modes. Thereby, it is possible to clearly notify the operator of the extraction timing.

  Further, the notification unit may be a speaker that notifies the completion of the welding process by the heater and the incompleteness of the welding process. Thus, the operator can clearly be notified of the extraction timing by voice, so that even if the operator is performing another work, the operator can be made aware.

  Moreover, it is preferable that the packaging machine which concerns on this invention is further provided with a pressing member, a fluctuation | variation part, and a command generation part. The pressing member presses the product covered with the film from above the product. The changing unit changes the position of the pressing member with respect to the product. The command generation unit generates a command for executing an operation indicating the completion of the welding process based on the determination result by the determination unit. Moreover, it is preferable that a fluctuation | variation part moves a holding member to the direction away from goods at the timing when the instruction | command was produced | generated by the instruction | command production | generation part. Thereby, it can be shown more clearly to the operator that the heat treatment has not been completed.

  Moreover, it is preferable that the packaging machine which concerns on this invention is further provided with a label issuing part and a command generation part. The label issuing unit issues a label. A label is affixed on the upper surface of the goods covered with the film. The command generation unit generates a command for executing an operation indicating the completion of the welding process based on the determination result by the determination unit. The label issuing unit preferably issues a label at the timing when the command is generated by the command generation unit. Thereby, a welding process can be performed more reliably.

  Moreover, it is preferable that the welding state determined by the determination unit includes a welding incomplete state, a welding completion state, and an excessive welding state. Further, the notification unit notifies the operator that the welding completion state, the welding incomplete state, and the excessive welding state can be identified. As a result, it is possible to prevent the product from being left on the take-out stand.

  According to the present invention, the packaging machine can be made smaller. In addition, since the product at the standby position can be removed at the timing when the film folded on the bottom surface of the product is properly welded, a welding mistake can be eliminated.

It is a front view of the packaging machine which concerns on one Embodiment of this invention. It is a side view of a packaging machine. It is a top view of a packaging machine. It is a top view of the link mechanism for a lift. It is a figure which shows the position before a lift of a mounting base, the position after a lift, and a motor position. It is a figure for demonstrating the structure of a discharge | emission pusher and a pressing member. It is a control block diagram of a packaging machine. It is a figure which shows the example of the 1st message displayed on a display. It is a figure which shows the example of the 2nd message displayed on a display. It is a figure which shows the example of the 3rd message displayed on a display. It is a figure which shows the example of the 4th message displayed on a display. It is a timing chart for demonstrating alerting | reporting process. It is a flow which shows the flow of an alerting | reporting process. It is a flow which shows the flow of an alerting | reporting process. It is a flow which shows the flow of an alerting | reporting process. It is a figure which shows the example of the packaging machine which concerns on the modification A. It is a figure which shows the example of the packaging machine which concerns on the modification B. It is a figure for demonstrating the example of the packaging machine which concerns on the modification C. FIG. It is a figure for demonstrating the example of the packaging machine which concerns on the modification C. FIG. It is a figure for demonstrating the example of the packaging machine which concerns on the modification C. FIG. It is a figure for demonstrating the example of the packaging machine which concerns on the modification C. FIG.

(1) Outline of Entire Apparatus A packaging machine 1 according to an embodiment of the present invention is shown in FIGS. 1 to 3. The packaging machine 1 pushes up a product G such as a fresh food product placed on a tray against a stretch film F (see FIG. 2) held in tension, and folds the peripheral portion of the film F into the bottom surface of the tray to be packaged. It is an apparatus for film-wrapping a product G, which is a product. As shown in FIG. 2, the packaging machine 1 has an input space S <b> 1 in the lower front portion of the packaging machine 1, and a discharge space S <b> 2 in the upper front portion of the packaging machine 1. In the packaging machine 1, after the product G that has been put in from the lower front space S <b> 1 is weighed, the product G is packaged with the film F positioned at the rear, and then discharged again from the upper front discharge space S <b> 2.

  In this embodiment, the input space S1 side is the front side, and the side wrapped with the film F is the back side.

  As shown in any of FIGS. 1 to 3, the packaging machine 1 includes a weighing-in device 11, a lifter 12, a film delivery mechanism 15, a film transport mechanism 16, a folding mechanism 17, a discharge pusher 80, A pressing member 81, a take-out stand 13, and a control device 90 are provided.

  The weighing-in device 11 is provided at the lower center front of the packaging machine 1. The lifter 12 is arranged on the rear side of the weighing-in device 11 and at a position for receiving the product G carried in by the weighing-in device 11. A film roll R is held at the upper left portion of the packaging machine 1 (see FIG. 1). The film delivery mechanism 15 is disposed below the film roll R. The film delivery mechanism 15 pulls out the film F from the film roll R and delivers the film F toward the upper center of the packaging machine 1. The film transport mechanism 16 receives the film F from the film delivery mechanism 15, transports the film F to the center upper portion of the packaging machine 1, and grips the film F in a tensioned state. The folding mechanism 17 folds the film F on the bottom surface of the product G with folding plates 76 and 78 described later in order to wrap the product G with the film F held by the film transport mechanism 16. The product wrapped in the film F by the folding mechanism 17 is moved to the front side of the packaging machine 1 by the discharge pusher 80 while being pressed from above by the pressing member 81. The product moved by the discharge pusher 80 is discharged onto the take-out stand 13 and stops there. The take-out stand 13 enables the operator to take out the product G covered with the film F. The control device 90 is a device for operating each mechanism included in the packaging machine 1 (see FIG. 6). Hereinafter, the configuration of each part included in the packaging machine 1 will be described.

(2) Configuration of Each Part (2-1) Weighing-in Device The weighing-in device 11 is a device that measures the weight of the product G and then carries the product G from the near side in the depth direction of the packaging machine 1 to the far side. is there. The weighing-in device 11 includes a weighing device (weighing device) 11a, a loading member, and a link mechanism 41 that horizontally moves the loading member.

  The measuring instrument 11a measures the weight of the commodity G such as fresh food stored in the tray. The weighing instrument 11a is provided below the charging space S1. That is, the product G introduced from the input space S1 is loaded on the measuring instrument 11a and is weighed.

  The carry-in member is a member that carries the product G from the near side in the depth direction of the packaging machine 1 to the far side. The carry-in member is provided with a protrusion that contacts the side surface of the product G. After the weight of the product G is measured by the measuring instrument 11a, the carry-in member pushes the product G in the depth direction by the protrusion. The pushed product G is sent onto the movable mounting table 22 of the lifter 12 described later.

  The carrying-in member moves horizontally through the link mechanism 41 by the force of the motor 40 of the lifter 12 described later. That is, the link mechanism 41 converts the rotational force of the motor 40 into the horizontal movement of the carry-in member in conjunction with the movement of a cam plate 42 (described later) that is rotated by the motor 40.

(2-2) Lifter The lifter 12 is a device for lifting the product G that has been weighed upward. Specifically, the lifter 12 receives the product G carried in by the weighing-in device 11. Thereafter, the lifter 12 moves the product G upward and pushes up the product G against the film F that is gripped in the state of being stretched at the packaging position PA at the upper center of the packaging machine 1. That is, when the lifter 12 pushes up the product G from the lower side of the film F, the upper surface of the product G is covered with the film F.

  The lifter 12 mainly includes a support base 23, a large number of mounting members 25, and a lift drive unit (not shown) (see FIGS. 2 to 5). Many mounting members 25 are fixed on the support base 23. The lift drive unit moves the support base 23 up and down (see FIG. 5). The support base 23 and a large number of mounting members 25 form a movable mounting table 22 on which the product G is moved and moved up and down.

  The multiple mounting members 25 each have a common basic structure. The mounting member 25 mainly includes a head 25a, a fixed post 25b, a rotation shaft that tilts the head 25a in the left-right direction, a rotation shaft that tilts the head 25a in the front-rear direction, and a left-right spring that returns the tilted head 25a. And front and rear springs (not shown). Thereby, the head 25a can be rotated back and forth and right and left with respect to the fixed post 25b. The mounting member 25 has a structure similar to that of the mounting member disclosed in Japanese Patent Application Laid-Open No. 2004-262513.

  As shown in FIG. 4, vertical guide bars 29 are passed through the left and right ends of the support base 23. The support base 23 is configured to move up and down along the vertical guide rod 29 (see FIG. 5). Further, as shown in FIG. 5, the support base 23 has a vertical plate 23 a that extends downward at the left and right ends. Support pins 49a are attached to these vertical plates 23a. The first link member 49 is attached to the vertical plate 23a via the support pin 49a.

  4 and 5, the first link member 49 forms a link mechanism 41 together with the second link member 47, the base shaft 46, the cam follower support plate 45, the cam follower 44, the cam plate 42, and the like. The link mechanism 41 is a lift mechanism for raising and lowering the movable mounting table 22 including the support base 23. A cam plate 42 is fixed to the rotating shaft 40a of the motor 40, and the cam plate 42 turns around the rotating shaft 40a. The cam follower 44 is pivotally supported at the tip of the cam follower support plate 45, and moves upward or downward as the cam plate 42 rotates. The cam follower support plate 45 is fixed to a base shaft 46 serving as a fixed fulcrum. When the tip of the cam follower support plate 45 is rotated according to the movement of the cam follower 44, the second link member 47 is also rotated by the same angle (see FIG. 5), and the support base 23 and the mounting base are placed via the first link member 49. The member 25 moves up and down along the vertical guide rod 29 in the vertical direction. The link mechanism 41 and the motor 40 constitute a lift driving unit 27 that moves the movable mounting table 22 (the support base 23 and the mounting member 25) up and down.

  In FIG. 5, the support base 23 and the mounting member 25 indicated by the solid line are at the height position (lower position) of the position before the lift, and the support base 23 and the mounting member 25 indicated by the two-dot chain line are at the position after the lift. It is in the height position (upper position). The height is about 210 mm different between the upper position and the lower position. The height position of the base shaft 46 serving as the rotation center of the second link member 47 is between the height position of the support base 23 before the lift and the height position after the lift.

(2-3) Film Delivery Mechanism The film delivery mechanism 15 is a mechanism for delivering the film F drawn from the film roll R to a pair of clamp units 61 and 62 (see FIG. 2) of the film transport mechanism 16 described later. is there.

(2-4) Film Conveying Mechanism The film conveying mechanism 16 receives the film F sent from the film roll R by the film sending mechanism 15, and further conveys the film F to the center upper portion of the packaging machine 1 to grip the film F It is a mechanism to do.

  Specifically, the film transport mechanism 16 is a mechanism that transports the film F to a packaging space (packaging position) PA provided above the lifter 12 and grips the film F in a stretched state. In a state where one end of the film F is drawn out from the film roll R, the film transport mechanism 16 pulls both ears of the film F away from one end (width direction of the packaging machine 1), and before and after the depth direction of the packaging machine 1 Grip both ears of film F.

  The film transport mechanism 16 is mainly composed of a film feeding roller, a transport belt 63, a first clamp unit 61, and a second clamp unit 62.

  The film feeding roller grips the film F fed from the film feeding mechanism 15 up and down and feeds the film F.

  The conveyance belt 63 extends in the width direction of the packaging machine 1 and circulates, and is disposed on both sides in the depth direction (see FIG. 6). The conveyor belts 63 are arranged side by side and are driven inward from each other by a drive motor. The film transport mechanism 16 sandwiches the film F from above and below by the transport belt 63 and transports the film F by the operation of the drive motor.

  The first clamp unit 61 and the second clamp unit 62 respectively hold the film F spread in the width direction of the packaging machine 1 by the transport belt 63 on both sides in the depth direction (front side and back side) of the packaging machine 1 ( (See FIG. 2). That is, the first clamp unit 61 and the second clamp unit 62 hold the film F in a stretched state. Although not shown, each of the first and second clamp units 61 and 62 includes a plurality of clamps. The plurality of clamps are arranged side by side in the width direction of the packaging machine 1. The plurality of clamps are actuated by solenoids to grip and release the film F. The plurality of clamps are mainly formed in the front and rear of the packaging machine 1 in the depth direction in the initial stage when the peripheral edge of the film F is folded into the bottom surface of the product G by the left and right folding plates 76 and the rear folding plate 78 described later. It plays the role of gripping the end.

(2-5) Folding mechanism The folding mechanism 17 is a mechanism for folding the film F stretched around the product G into the bottom side of the product G and packaging the product. In other words, the folding mechanism 17 is a mechanism that folds the peripheral edge of the film F covering the product G into the bottom surface of the product G. The folding mechanism 17 mainly includes a left and right folding plate 76, a rear folding plate 78, and a front folding rod 79 (see FIG. 2).

  The left and right folding plates 76 are arranged on both sides in the width direction of the packaging machine 1. The left and right folding plates 76 fold the left and right portions of the peripheral edge of the film F (the vicinity of both end portions in the film transport direction) into the bottom surface of the product G. The left and right folding plates 76 can be moved horizontally in the left-right direction by a motor and a timing belt (not shown). Specifically, the left and right folding plates 76 enter between the product G and the head 25a of the mounting member 25 in a state where the product G placed on the lifter 12 pushes up the film F, and move in the left-right direction to move the film F. Is folded into the bottom of the product G.

  The rear folding plate 78 is disposed on the back side in the depth direction of the packaging machine 1. Further, the rear folding plate 78 is disposed above the left and right folding plates 76. The rear folding plate 78 moves horizontally in the front-rear direction using the force of the lift motor 40. The rear folding plate 78 folds the film F into the bottom surface of the product G while horizontally overlapping the left and right folding plates 76 when moving horizontally from the depth direction back side to the front side of the packaging machine 1. Specifically, the rear folding plate 78 is located between the product G and the head 25a of the mounting member 25 at a position higher than the left and right folding plates 76 in a state where the product G placed on the lifter 12 pushes up the film F. The peripheral edge of the film F is folded into the bottom surface of the product G in the front-rear direction.

  The front folding rod 79 is arranged on the front side in the depth direction of the packaging machine 1. Specifically, the front folding bar 79 is arranged downstream of the first clamp unit 61 and upstream of the later-described take-out stand 13 in the conveyance direction of the product G. When the product G is pushed out toward the take-out stand 13 by a discharge pusher 80 described later, the front folding bar 79 has a front side portion (a portion near the side portion on the first clamp unit 61 side) of the peripheral portion of the film F. It arrange | positions in the position which is folded in the bottom face of G (refer FIG. 2).

(2-6) Discharge Pusher and Pressing Member The discharge pusher 80 is a mechanism that pushes the product G covered with the film F toward the discharge space S2. As shown in FIG. 6, the discharge pusher 80 includes a plurality of elongated plate-like members 80a. The plurality of plate-like members 80a extend in the depth direction of the packaging machine 1 toward the packaging position PA. Further, the plurality of plate-like members 80 a are arranged side by side along the width direction of the packaging machine 1. Specifically, the plurality of plate-like members 80a are arranged on both sides of a pressing member 81 to be described later. Bolts 80b are attached to one end in the longitudinal direction of the plurality of plate-like members 80a (the depth direction rear side of the packaging machine 1). The bolt 80 b is passed through the plurality of plate-like members 80 a in a manner extending in the width direction of the packaging machine 1. The plurality of plate-like members 80a are configured to be individually rotatable with a bolt 80b as a rotation axis.

  The plurality of plate-like members 80a have different length dimensions. The lengths of the plurality of plate-like members 80 a arranged on both sides of the pressing member 81 are symmetric about the pressing member 81. Specifically, among the plurality of plate-like members 80a, the plate-like member 80a located closest to the holding member 81 has the largest length dimension, and the length of the plate-like member 80a increases as the distance from the holding member 81 increases. Dimensions are reduced.

  The discharge pusher 80 is horizontally moved in the front-rear direction of the packaging machine 1 by the pusher drive unit 80c. The discharge pusher 80 contacts the rear of the product G at the tip of any plate-like member 80a corresponding to the size of the product G. The discharge pusher 80 is moved horizontally toward the front of the packaging machine 1 to move the product G toward the take-out stand 13 described later. The discharge pusher 80 folds the rear part of the peripheral part of the film F to the bottom surface of the product G after the rear folding plate 78 has moved the product G forward, and the front part of the peripheral part of the film F is folded forward. The bar 79 is relatively folded into the lower side of the product G. The discharge pusher 80 also operates using the force of the lift motor 40.

  The pressing member 81 is a member that contacts the product G from above the product G and presses the product G. That is, the pressing member 81 is a member that applies a downward force to the product G covered with the film F. The pressing member 81 is an elongated plate member. As shown in FIG. 6, the pressing member 81 also extends in the depth direction of the packaging machine 1 toward the center of the packaging position PA. As described above, the pressing member 81 is disposed at a position sandwiched between the plurality of plate-like members 80a. The pressing member 81 is configured to be swingable in the vertical direction with respect to the depth direction back side of the packaging machine 1. Specifically, the pressing member 81 changes the height position of one end on the front side up and down while fixing one end on the rear side. Further, when the product G lifted by the lifter 12 comes into contact with the presser member 81 from below, the presser member 81 is elastically deformed while warping so that the front end of the presser member 81 is directed upward. The product G is pressed down by the restoring force of the elastically deformed pressing member 81. That is, the pressing member 81 functions as a leaf spring.

  The pressing member 81 moves horizontally in the depth direction (front-rear direction) of the packaging machine 1 as the discharge pusher 80 moves horizontally. That is, the pressing member 81 is also horizontally moved in the front-rear direction of the packaging machine 1 by the pusher driving unit 80c.

(2-7) Take-out stand The take-out stand 13 is a stand provided in the discharge space S2. Specifically, the take-out stand 13 is disposed at the standby position WA. The standby position WA is a place where the product G discharged from the packaging space (packaging position) PA by the discharge pusher 80 waits. In other words, the take-out stand 13 is a place where the commodity G moved by the discharge pusher 80 stops. The product G waiting on the take-out stand 13 is in a state of being wrapped by the film F. The operator takes out the commodity G stopped at the take-out stand 13.

  As shown in FIGS. 2 and 3, the take-out table 13 mainly includes a plurality of mounting plates 13a and a heater 13b.

  The plurality of placement plates 13a are plates on which the product G is placed. The upper surfaces of the plurality of placement plates 13a serve as placement surfaces on which the product G is placed. As shown in FIG. 3, the plurality of placement plates 13 a are provided on the front side of the packaging machine 1 in a manner extending in the width direction of the packaging machine 1. Further, the plurality of placement plates 13 a are arranged side by side along the conveyance direction of the product G. The plurality of placement plates 13a are arranged with a predetermined gap.

  The heater 13b welds the film F folded on the bottom side of the product G. The heater 13b is disposed in a predetermined gap formed between the plurality of placement plates 13a. Specifically, the heater 13b is disposed between the plurality of placement plates 13a in the conveyance direction of the product G. That is, the heater 13b is disposed at the standby position WA. The heater 13b extends in the direction intersecting the conveyance direction of the product G at the center of the take-out table 13. The heater 13b heats and welds the film F folded on the bottom surface of the product G. More specifically, the heater 13b is welded by partially applying heat from below the product G to the peripheral portion of the film F covering the product G. Thereby, the product G is packaged with the film F. The heater 13b is basically always set to ON when the heater power switch 18b is turned on. Further, the heater 13b is set to OFF at a timing when the heater power switch 18b is turned off or when a stop command is generated by a command generation unit 95b described later. The temperature of the heater 13b can be appropriately changed depending on the type of the product to be packaged.

  A sensor 18d is provided in the vicinity of the take-out stand 13, as shown in FIGS. The sensor 18d detects the presence or absence of the product G in the discharge space S2. In other words, the sensor 18 d detects the product G that has been moved to the take-out stand 13. When the product G is detected by the sensor 18d, a signal to that effect is sent to the control device 90. That is, the signal sent from the sensor 18d is used to determine whether or not the product G is placed on the take-out table 13.

(2-8) Control Device The control device 90 is a device for operating each mechanism included in the packaging machine 1 as described above. The control device 90 exchanges signals with the mechanisms 11, 12, 15, 16, and 17 as shown in FIG. In addition, input signals from the main power switch 18a, the heater power switch 18b, the emergency stop switch 18c, the sensor 18d, and the like are transmitted to the control device 90.

  The control device 90 includes a label issuing unit 96, operation keys 91, a timer 93, and a display 92 (see FIG. 7). The control device 90 includes a CPU, a ROM, a RAM, and the like, and functions as the storage unit 94 and the control unit 95.

(2-8-1) Label issuing part The label issuing part 96 is a label printer which produces | generates the label affixed on the film F which covers the goods G. FIG. The label issuing unit 96 obtains the weight value of the product G from the measuring instrument 11a, prints the weight and price on the label, and issues the label. The operator affixes the label issued at a predetermined timing from the label issuing unit 96 to the film-wrapped product G that has come out on the take-out stand 13 (see FIG. 2).

(2-8-2) Operation Key The operation key 91 is a ten-key method.

(2-8-3) Timer The timer 93 measures time based on the clock count. The timer 93 starts and ends time measurement at various timings. For example, the timer 93 measures the time that the product G is waiting at the standby position WA. Specifically, the timer 93 starts measuring time at the timing when the product G is detected by the sensor 18d described above. In addition, the timer 93 ends the time measurement and resets the timer at the timing when the commodity G is no longer detected by the sensor 18d or when the heater 13b is set to OFF.

(2-8-4) Display The display 92 is a touch panel type. The display 92 is also provided with operation buttons. The display 92 functions as a designation unit in the present embodiment. Specifically, the display 92 accepts designation of the product G from the user as a designation unit. The designation of the product G is the designation of the product G to be packaged.

  In addition, the display 92 functions as a notification unit in the present embodiment. Specifically, the display 92 notifies the user of information stored in the storage unit 94, a processing result, and the like as a notification unit. The result of the process notified by the display 92 includes a determination result by the determination unit 95a described later. For example, the display 92 notifies the welding state of the film F folded on the bottom surface of the product G at the standby position WA based on the determination result. Further, the display 92 notifies the exclusion of the product G at the standby position WA based on the determination result. Specifically, the display 92 displays the completion of the welding process by the heater and the incompleteness of the welding process, respectively (see FIGS. 8A to 8D).

(2-8-5) Storage Unit In the storage unit 94, data input from the operation keys 91 and the display 92, or data transferred from an external device, and a program necessary for processing in the packaging machine 1 are stored. It is remembered. Further, the storage unit 94 stores an area (film data area) 94a for storing data relating to the film F, an area (product data area) 94b for storing data relating to the product G, and an area for storing data relating to the tray ( Tray data area) 94c.

  Here, the data regarding the film F is data considered when the determination unit 95a described later determines the welding state of the film F. In the film data area 94a, data relating to properties of a plurality of types of films F is stored for each type of film F as data relating to the film F. The film data area 94a stores data that associates the type of film F, the type of product G in which the film is used, and the required heating time. That is, the data regarding the film F provides information on the type of the film F used for the type of the product G to be packaged and the heating time required depending on the type of the film F.

  Data relating to the product G is also data that is taken into account when the determination unit 95a described later determines the welding state of the film F. In the product data area 94b, the unit price data of the product G and the data related to the properties of the product G are stored for each type of the product G as data about the product G. In the product data area 94b, data that associates the product G being packaged with the weight of the product G measured by the measuring instrument 11a is stored.

  The data relating to the tray is data relating to the properties, size, tare weight, etc. of the tray. In the data area 94c of the tray, data relating the type of tray used in the packaging machine 1, the type of product G in which the tray is used, and the heating time required according to the type of the tray is stored. Has been.

(2-8-6) Control Unit The control unit 95 mainly functions as the determination unit 95a and the command generation unit 95b.

(A) Determination part The determination part 95a determines the welding state of the film F in the standby position WA. Specifically, the determination unit 95a determines the welding state of the film F based on the standby time of the product G at the standby position WA. Here, the welded state of the film F means the welded state of the portion of the film F that is folded into the bottom surface of the product G. That is, the determination unit 95a determines whether or not the overlapping portion of the film F on the bottom surface of the product G is bonded by the heating of the heater 13b.

  Specifically, the determination unit 95a determines the welding state of the film F based on the weight of the product G to be packaged and the standby time (welding time). Moreover, the determination part 95a may determine the welding state of the film F further based on the kind of film F used for the goods G used as packaging object. Here, the weight of the product G is the weight measured by the measuring instrument 11a. The welding time is the time measured by the timer 93 described above. As described above, the measurement of the welding time is started at the timing when the sensor 18d detects the commodity G moved to the take-out stand 13. The type of film F is the type of film F corresponding to the product G designated on the display 92 by the operator. Although the determination by the determination unit 95a can be performed without using the data on the type of the film F, a higher quality determination result can be obtained when the type of the film F is taken into consideration. Hereinafter, the determination process by the determination unit 95a will be described in more detail.

  First, the determination unit 95a reads from the storage unit 94 the measured weight of the product G to be packaged and the type data of the film F corresponding to the designated product G. Thereafter, the determination unit 95a determines a welding time (appropriate welding time) TP2 suitable for packaging of the target product G based on the read weight data of the product G and data of the type of the film F (see FIG. 9).

  More specifically, the determination unit 95a determines the take-out timing, the warning start timing, and the heater stop timing for the target product G based on the weight data of the product G and the data of the film F used for the target product G. Is determined (see FIG. 9). Here, as shown in FIG. 9, the time from when the commodity G is detected to the take-out timing is the waiting time TP1. Further, the time from the take-out timing to the warning start timing is the appropriate welding time TP2. Furthermore, the warning time TP3 is from the warning start timing to the heater stop timing. The time from the heater stop timing until the product G is taken out is the stop time TP4.

  The waiting time TP1, the appropriate welding time TP2, the warning time TP3, and the stop time TP4 are times from when the product G is detected by the sensor 18d until it is no longer detected, as shown in FIG. The waiting time TP1 is a time during which the product G should be kept on standby by the take-out stand 13 in order to complete the welding of the product G. The waiting time TP1 is a time before the start timing of the appropriate welding time TP2. The appropriate welding time TP2 is a range of welding time suitable for packaging the target product G as described above. The warning time TP3 is a predetermined time immediately after the appropriate welding time TP has elapsed, and is a time for prompting early removal of the product G. The stop time is the time from the heater stop timing until the product G is taken out. Data for determining the warning start timing and the heater stop timing is also stored in the storage unit 94.

  The determination unit 95 a compares the take-out possible timing, the warning start timing, and the heater stop timing with the welding time (actual welding time) measured by the timer 93 to determine the welding state of the film F.

  Specifically, the determination unit 95a determines that the welding process has not been completed when the actual welding time has not reached the take-out possible timing. That is, the determination unit 95a determines that the welding of the film F is in an incomplete state. When it is determined that the welding is in an incomplete state, the portion of the film F that is folded into the bottom surface of the product G is not firmly adhered, which means that the heating time is insufficient.

  In addition, the determination unit 95a determines that the welding process is completed when the actual welding time is within the range of the appropriate welding time (after the take-out timing has elapsed and until the warning start timing is reached). judge. That is, the determination unit 95a determines that the film F is completely welded. When it is determined that the welding has been completed, the portion of the film F that is folded under the product G is firmly bonded, which means that the heating time is appropriate.

  Furthermore, when the actual welding time reaches the warning start timing (that is, when the appropriate welding time has elapsed), the determination unit 95a determines that the welding process is excessive. That is, the determination part 95a determines with the welding of the film F being an excessive welding state. The excessively welded state is a state in which heat is sufficiently applied to the portion of the film F folded on the bottom surface of the product G, and means that the heating time exceeds an appropriate time range. Here, when the actual welding time has reached the warning timing, the determination unit 95a determines that the first arrival state is reached, and when the actual welding time has reached the heater stop timing, the determination unit 95a is in the second arrival state. Judge that there is.

(B) Command Generation Unit The command generation unit 95b generates a command based on the determination result by the determination unit 95a. The commands generated by the command generation unit 95b include a stop command for the heater 13b and a notification command for the display 92. Here, the stop command is a command for switching the setting of the heater 13b to OFF. The notification command is a command for causing the display 92 to display the determination result. That is, when the notification command is generated by the command generation unit 95b, the determination result is displayed on the display 92. The command generation unit 95b generates a command so that the welding state (the welding incomplete state, the welding completion state, and the excessive welding state) of the film F can be identified on the display 92. The command generation unit 95b displays a different message on the display 92 according to the determination result by the determination unit 95a.

  Specifically, when the determination unit 95a determines that the actual welding time is within the standby time range, the command generation unit 95b generates a command for causing the display 92 to display the first message (see FIG. 9 reference TP2). After the product G is detected by the sensor 18d, since the actual welding time is in the standby time range, the command generation unit 95b causes the display 92 to display the first message. As shown in FIG. 8A, the first message is to notify the incomplete welding and suppress the removal of the product G, such as “Welding is not completed. Please do not take the product.” Message. Thereafter, the command generation unit 95b waits for a determination that the determination unit 95a has reached the take-out possible timing.

  If the determination unit 95a determines that the actual welding time has reached the take-out timing, the command generation unit 95b generates a command for displaying the second message on the display 92 (reference numeral in FIG. 9). (See TP2). For example, as shown in FIG. 8B, the second message notifies the completion of welding and indicates that the product G can be taken out, such as “Welding is complete. It is a message to inform.

  When the determination unit 95a determines that the actual welding time has reached the warning start timing, the command generation unit 95b generates a command for displaying the third message on the display 92 (FIG. 9). (See symbol TP3). For example, as shown in FIG. 8C, the third message is a message for prompting the user to take out the product G, such as “Products remain.

  Furthermore, when the determination unit 95a determines that the actual welding time has reached the heater stop timing, the command generation unit 95b generates a stop command for the heater 13b and causes the display 92 to display a fourth message. Command is generated (see symbol TP4 in FIG. 9). For example, as shown in FIG. 8D, the fourth message indicates that the setting of the heater 13b has been switched to OFF, such as “the product remains. The heater has been turned off for safety”. It is a message for indicating.

  As described above, the instruction generated by the instruction generation unit 95b allows the operator to identify the welding state of the film F, that is, the welding incomplete state, the welding completion state, and the welding excessive state. Each message is displayed on the display 92 at each timing.

(3) Flow of Notification Process Next, the flow of the determination result notification process will be described with reference to FIGS. 10A to 10C.

  In step S11, it is determined whether or not the product G is designated and the weight of the product G is input. In step S11, the process waits until the product G is specified and the weight of the product G is input. When the product G is specified and the weight of the product G is input, the process proceeds to step S12.

  In step S12, the data of the commodity G and the weight data are read from the storage unit 94. Thereafter, the process proceeds to step S13.

  In step S13, various timings are calculated by the determination unit 95a. The various timings include a take-out timing, a warning start timing, and a heater stop timing. Thereafter, the process proceeds to step S14.

  In step S14, it is determined whether or not the product G is detected by the sensor 18d. That is, in step S14, it is determined whether or not the product G has been transported to the take-out table 13. In step S14, the process waits until the commodity G is detected. When the commodity G is detected, the process proceeds to step S15.

  In step S15, the measurement of the welding time is started by the timer 93. Thereafter, the process proceeds to step S16.

  In step S16, the first message is displayed on the display 92 (see FIG. 8A). That is, in step S16, a notification command for causing the display 92 to display the first message is generated by the command generation unit 95b. Thereafter, the process proceeds to step S17.

  In step S17, it is determined whether or not the commodity G is detected by the sensor 18d. That is, in step S17, it is determined whether or not the product G remains on the take-out stand 13. In step S17, if the product G is not detected, the process proceeds to step S29. If the product G is detected, the process proceeds to step S18.

  In step S18, the determination unit 95a determines whether or not the actual welding time has reached the take-out-possible timing. In step S18, when the actual welding time has not reached the take-out possible timing, the process returns to step S17. On the other hand, if the actual welding time has reached the take-out possible timing in step S18, the process proceeds to step S19.

  In step S19, the second message is displayed on the display 92 (see FIG. 8B). That is, in step S19, a notification command for causing the display 92 to display the second message is generated by the command generation unit 95b. Thereafter, the process proceeds to step S20.

  In step S20, it is determined whether or not the product G is detected by the sensor 18d. That is, also in step S20, it is determined whether or not the product G remains on the take-out stand 13. If the product G is not detected in step S20, the process proceeds to step S29. If the product G is detected, the process proceeds to step S21.

  In step S21, the determination unit 95a determines whether or not the actual welding time has reached the warning start timing. In step S18, when the actual welding time has not reached the warning start timing, the process returns to step S20. On the other hand, if the actual welding time has reached the warning start timing in step S21, the process proceeds to step S22.

  In step S22, the third message is displayed on the display 92 (see FIG. 8C). That is, in step S22, the command generation unit 95b generates a notification command for displaying the third message on the display 92. Thereafter, the process proceeds to step S23.

  In step S23, it is determined whether or not the commodity G is detected by the sensor 18d. That is, also in step S23, it is determined whether or not the product G remains on the take-out stand 13. In step S23, when the product G is not detected, the process proceeds to step S29, and when the product G is detected, the process proceeds to step S24.

  In step S24, the determination unit 95a determines whether or not the actual welding time has reached the heater stop timing. If the actual welding time has not reached the heater stop timing in step S18, the process returns to step S23. On the other hand, if the actual welding time has reached the heater stop timing in step S24, the process proceeds to step S25.

  In step S25, the command generation unit 95b generates a stop command for the heater 13b. That is, in step S25, the setting of the heater 13b is switched to OFF. In step S25, the timer 93 is further reset. Thereafter, the process proceeds to step S26.

  In step S26, the fourth message (see FIG. 8D) is displayed on the display 92. That is, in step S26, the command generation unit 95b generates a notification command for displaying the fourth message on the display 92. Thereafter, the process proceeds to step S27.

  In step S27, it is determined whether or not the product G is detected by the sensor 18d. That is, also in step S27, it is determined whether or not the product G remains on the take-out stand 13. If the product G is detected in step S27, the process waits until it is no longer detected. If the product G is no longer detected, the process proceeds to step S28.

  In step S28, the fourth message displayed on the display 92 is cleared, and the process returns to step S11.

  In step S29, the timer 93 is reset and each message displayed on the display 92 is cleared, and the process returns to step S11.

(4) Features (4-1)
The packaging machine 1 according to the embodiment covers the top surface of the product G with the film F stretched at the packaging position PA, and then wraps the film F stretched around the product G into the bottom surface of the product G for packaging. The machine 1 includes a heater 13b. The heater 13b is provided at the standby position WA. The standby position WA is a position where the product G packaged at the packaging position PA is discharged from the packaging position PA and stands by. Moreover, the heater 13b welds the film F folded in the bottom face of the goods G. FIG.

  In the conventional packaging machine, a heater is provided on the upstream side of the standby position in the conveyance direction of the product G. Specifically, the product G lifted to the packaging position PA by the lifter is welded by a heater before the arrival at the standby position after the film F stretched around the product G is folded into the bottom surface of the product G. It was. And after the film F was welded with the heater, the goods G were conveyed to the standby position. That is, the standby position of the product G and the heater installation position are at different positions in the conveyance direction of the product G.

  The packaging machine 1 according to the embodiment is configured such that the take-out stand 13 provided at the standby position WA includes the heater 13b. That is, the heater 13b is provided at the standby position WA. The packaging machine 1 has a configuration in which heat is applied to the product G at the standby position WA. Thereby, the packaging machine 1 can be made smaller than the conventional size. And a more compact desktop type packaging machine can be provided to the market.

(4-2)
Moreover, the packaging machine 1 which concerns on the said embodiment is further provided with the display 92 as a alerting | reporting part. The display 92 informs the welding state of the film F folded on the bottom surface of the product G at the standby position WA.

  In the packaging machine 1 according to the embodiment, the heater 13b is provided at the standby position WA. Specifically, the take-out stand 13 includes a heater 13b. Here, since the standby position WA is provided in the discharge space S2, the commodity G moved to the standby position WA can be freely taken out from the take-out stand 13 at any timing of the operator. Therefore, the operator can take out the commodity G regardless of whether or not the film F is appropriately welded. Further, the welding state of the film F to which heat is applied by the heater 13b cannot be easily discriminated when it is placed on the take-out table 13. Therefore, there are cases where the timing of taking out from the take-out stand 13 is too early or too late, and as a result, a mistake in welding of the film F is likely to occur.

  However, the packaging machine 1 which concerns on the said embodiment notifies the welding state of the film F by the display 92. FIG. Thereby, according to the welding state of the film F, the packaged goods G can be removed from the standby position WA. As a result, mistakes in film welding can be prevented.

(4-3)
Moreover, in the packaging machine 1 which concerns on the said embodiment, the welding part of the film F in the standby position WA is determined by the determination part 95a. Further, the display 92 notifies the exclusion of the product G at the standby position WA based on the determination result by the determination unit 95a. Thereby, even if the welding state of the film F is not monitored, the packaged product G can be removed from the standby position at an optimal timing.

(4-4)
Moreover, the packaging machine 1 which concerns on the said embodiment is further equipped with the measuring device 11a. The measuring instrument 11a measures the product G. Further, the determination unit 95a determines the welding state of the film F based on the time (welding time) that the product G is waiting at the standby position WA and the weight (measured weight) of the product G measured by the measuring instrument 11a. judge.

  The welding completion time of the film F varies depending on the weight of the product G. However, in the packaging machine 1 according to the above embodiment, the packaged product G can be removed from the standby position WA at an appropriate timing according to the weight of the product G. Moreover, in the packaging machine 1 which concerns on the said embodiment, various timings are determined based on the kind of film F corresponding to the kind of goods G designated with the display 92. FIG. Thereby, welding of the film F can be performed more reliably.

(4-5)
Moreover, the packaging machine 1 which concerns on the said embodiment is provided with the memory | storage part 94 and the display 92 as a designation | designated part. The storage unit 94 stores the type of film F corresponding to the product G. The display 92 as the designation unit accepts designation of the product G. Further, the determination unit 95a reads the type of the film F corresponding to the product G designated on the display 92 from the storage unit 94, and determines the welding state of the film F based on the read type of the film F. Thereby, even if it is a case where the kind of film F used by the goods G differs, the packaged goods G can be removed from the stand-by position WA at the timing according to the film F. As a result, welding errors can be further reduced.

(4-6)
Further, in the packaging machine 1 according to the above-described embodiment, the completion of the welding process by the heater 13b and the incompleteness of the welding process are displayed by the display 92 as the notification unit. Thereby, it is possible to clearly notify the operator of the extraction timing.

(5) Modification (5-1) Modification A
In the above embodiment, the display 92 functions as a notification unit that notifies the state of the welding process.

  Here, the packaging machine 1 may further include a light emitting unit 18e, and the light emitting unit 18e may function as a notification unit in addition to the display 92 or instead of the display 92. Specifically, the light emitting unit 18e is disposed on the front side of the packaging machine 1 as shown in FIG. More specifically, the light emitting unit 18e is preferably disposed in the vicinity of the take-out table 13 (for example, the upper surface of the mounting plate 13a). The light emission part 18e shows each state contained in the state of a welding process in a different aspect. For example, the light emitting unit 18e may notify the state of each welding process in an identifiable manner by changing the color of light emission or the flashing mode (flashing time) according to the welding state.

  With this configuration, the welding state of the film F can be notified in the vicinity of the take-out stand 13. Thereby, the welding state of the film F becomes easy for an operator who tries to take out the product G from the take-out stand 13. When weighing and packaging a large number of products G in a short period of time, the timing at which the operator takes out the product G from the take-out table 13 tends to become earlier. If the timing for taking out the product G is too early, the film F is not sufficiently welded. However, by notifying the welding state of the film F at a position where it can easily be seen by the operator, it is possible to prompt the user to take out the product G at an appropriate timing without reducing the work efficiency.

(5-2) Modification B
Instead of the configuration of the embodiment and the modification A, or in addition to the configuration of the embodiment and the modification A, the packaging machine 1 may further include a speaker 18f. For example, as shown in FIG. 12, the speaker 18 f is provided in the control device 90. And you may make the speaker 18f function as an alerting | reporting part. Specifically, a different type of sound or a different message may be notified from the speaker 18f based on the determination result by the determination unit 85a.

(5-3) Modification C
In addition to the configuration of the embodiment and the modifications A and B, or instead of the configuration of the embodiment and the modifications A and B, based on the determination result by the determination unit 95a, the command generation unit 95b You may comprise so that the instruction | command for performing the operation | movement which shows the completion of a welding process may be produced | generated. Specifically, the command generation unit 95b may vary the timing at which the pressing member 81 moves away from the product G according to the determination result by the determination unit 95a.

  More specifically, at the timing when the determination unit 95a determines the completion of the welding process, the command generation unit 95b issues a command for the pusher drive unit 80c to move the discharge pusher 80 and the pressing member 81 away from the product G. May be generated.

  This will be described with reference to FIGS. 13A to 13D. As shown in FIG. 13A, when the product G is pushed up from below the stretched film F, the pressing member 81 presses the product G from the film F covering the product G. Next, as shown in FIGS. 13B and 13C, when the product G is moved to the front side of the packaging machine 1 by the discharge pusher 80, the pressing member 81 is also moved horizontally along with the horizontal movement of the discharge pusher 80. Move in the direction. That is, the pressing member 81 moves toward the front side of the packaging machine 1 in a state where the product G is pressed from above the film F. Here, the pressing member 81 maintains the state where the product G is pressed until the take-out timing is possible. Thereafter, when the actual welding time reaches the take-out-possible timing, the discharge pusher 80 and the pressing member 81 move horizontally toward the rear side of the packaging machine 1 as shown in FIG. 13D. That is, it returns to the original position.

  In this configuration, when the pressing member 81 moves away from the product G, the completion of the welding process and the incompleteness of the welding process can be identified. Until the welding process is completed, the pressing member 81 maintains a state where the product G is pressed from above. As a result, it is possible to generate a situation in which it is difficult to take out the product G, and it is possible to reliably indicate to the operator that the welding process has not been completed.

(5-4) Modification D
In the above embodiment, the display 92 functions as a designating unit for designating the product G, but the operation key 91 may function as a designating unit.

(5-5) Modification E
In addition to the configuration of the embodiment and the modified examples A to C, or instead of the configuration of the embodiment and the modified examples A to C, a label is issued from the label issuing unit 96 based on the determination result by the determination unit 85a. A configuration may be provided in which the timing at which is issued is changed. For example, the label issuing unit 96 may be configured to issue a label at the timing when the instruction generation unit 95b generates a notification command for completion of the welding process.

  In this configuration, the completion of the welding process and the incompleteness of the welding process can be identified by the timing at which the label is issued by the label issuing unit 96. Thereby, since the welding process is completed at the timing when the label is issued, the operator makes a habit of taking out the product G from the take-out stand 13 after the label is issued, so that the film F is welded. Can be performed reliably.

(5-6) Modification F
In the embodiment described above, the determination of the welding state by the determination unit 95a is performed using the weight of the commodity G measured by the measuring instrument 11a.

  Here, instead of the weight of the product G weighed by the weighing instrument 11a, the determination of the welding state may be performed by the determination unit 95a using a predetermined weight stored according to the type of the product. That is, in the product data area 94b in the above embodiment, as data related to the product G, the type of the product G packaged by the packaging machine 1 and the weight of the product G corresponding to the type of the product G are associated. It may be stored.

  Thereby, the determination result of the welding state by the determination part 95a can be obtained at higher speed.

(5-7) Modification G
In the above-described embodiment, the determination unit 95a determines the waiting time (that is, the welding time) of the product G at the standby position WA, the weight of the product G, and the type of the film F used for the product G. A welding state is determined.

  Here, the determination unit 95a may further determine the welding state based on the type of tray used for the product G. That is, the data regarding the tray may also be taken into account when the determination unit 95a determines the welding state of the film F. The type of tray is the type of tray corresponding to the product G designated on the display 92 by the operator.

  Generally, the type of tray differs depending on the type of product G to be packaged. Different tray types have different tray weights and tray sizes. As a result, differences in tray weight and size affect the timing of welding completion.

  However, the packaging machine 1 stores data relating to trays used for packaging various products G in the tray data area 94c. Therefore, the film F is welded by reading the data related to the type of the tray corresponding to the type of the product G designated by the operator and determining the take-out timing and the like further considering the data related to the read type of the tray. This can be done more reliably.

1 Packing machine 11 Weighing-in device 11a Weighing device (weighing device)
12 Lifter 13 Take-out stand 13a Mounting plate 13b Heater 15 Film feed mechanism 16 Film transport mechanism 17 Folding mechanism 18d Sensor 18e Light emitting part (notification part)
18f Speaker (notification part)
80 Ejection pusher 80c Pusher drive part (variable part)
81 Pressing member 90 Control device 91 Operation key 92 Display (notification unit / designating unit)
93 Timer 94 Storage section 94a Film data area 94b Product data area 94c Tray data area 95 Control section 95a Judgment section 95b Command generation section 96 Label issuing section PA Packaging position WA Standby position

Claims (11)

A packaging machine that covers the top surface of a product with a film stretched at a packaging position and then folds and wraps the film stretched around the product on the bottom surface of the product,
A heater for welding a film folded on the bottom surface of the product at a standby position for discharging the packaged product from the packaging position and waiting;
Packaging machine. A notification section for notifying the welding state of the film folded into the bottom surface of the product at the standby position;
The packaging machine according to claim 1. A determination unit for determining a welding state of the film at the standby position;
The notification unit notifies the exclusion of the product at the standby position based on the determination result by the determination unit.
The packaging machine according to claim 2. It further comprises a weighing device for weighing the product,
The determination unit determines the welding state of the film based on the time that the product is waiting at the standby position and the product weight measured by the weighing device.
The packaging machine according to claim 3. A storage unit for storing the type of film according to the product;
A designating unit for designating the product;
Further comprising
The determination unit reads the film type corresponding to the product specified by the specification unit from the storage unit, and determines the welding state of the film based on the read film type.
The packaging machine according to claim 3 or 4. The notification unit is a display that displays the completion of the welding process by the heater and the incompleteness of the welding process, respectively.
The packaging machine according to any one of claims 2 to 5. The notification unit is a light-emitting unit that shows the completion of the welding process by the heater and the incompleteness of the welding process in different modes.
The packaging machine according to any one of claims 2 to 5. The notification unit is a speaker that notifies the completion of the welding process by the heater and the incompleteness of the welding process,
The packaging machine according to any one of claims 2 to 5. A holding member that holds the product covered with the film from above the product;
A changing portion for changing the position of the pressing member with respect to the product;
Based on a determination result by the determination unit, a command generation unit that generates a command for executing an operation indicating completion of the welding process;
Further comprising
The changing unit moves the pressing member in a direction away from the product at a timing when the command is generated by the command generation unit.
The packaging machine according to any one of claims 3 to 8. A label issuing unit for issuing a label to be attached to the upper surface of the product covered with the film;
Based on a determination result by the determination unit, a command generation unit that generates a command for executing an operation indicating completion of the welding process;
Further comprising
The label issuing unit issues the label at a timing when the command is generated by the command generation unit.
The packaging machine according to any one of claims 3 to 8. The welding state determined by the determination unit includes a welding incomplete state, a welding completion state, and an excessive welding state,
The notification unit notifies an operator in an identifiable manner of the welding incomplete state, the welding completion state, and the excessive welding state,
The packaging machine according to any one of claims 6 to 10.

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