JP6111391B2 - Method for processing residual package in packaging machine and packaging machine - Google Patents

Description

  The present invention relates to a processing method for residual packages such as powder, granules or liquid in a rotary or reciprocating packaging machine and a packaging machine to which the processing method is applied.

  In the conventional packaging machine, the packaging object remains in the filling means at the time of switching the packaging object or at the end of production, and thus cannot be used up. Moreover, since the packaged goods remaining in the filling means were discharged manually, a lot of time was required for discharging and cleaning.

No quote

  Therefore, an object of the present invention is to use up the packaging material remaining in the filling means at the time of switching the packaging material or at the end of production, eliminating the need for a discharge operation, shortening the cleaning time, and remaining packaging material. An object of the present invention is to provide a method for processing a residual package in a packaging machine that can be recycled while maintaining quality, and a packaging machine to which the processing method is applied.

What solves the above-described problems includes a grip pair that grips a packaging bag that accommodates a package, a moving body that intermittently moves the grip pair that grips the packaging bag for each of a plurality of packaging steps, and a package Filling means for filling the packaging bag, weighing means for weighing each of the articles to be packaged filled in the packaging bag, detection means for detecting the article to be packaged in the filling means, A method for processing a remaining package in a packaging machine having a sealing means for sealing a packaging bag containing the package, wherein the detection means detects a shortage of supply of the package in the filling means Or when manually switched, it is configured to be able to continue to produce a set quantity of products that can be produced with the amount of the packaged articles remaining in the filling means, and then filling of the packaged products is performed. It is carried out at a low speed In the quantity discharge mode, it is determined whether or not an object to be packed filled in the packaging bag through the weighing means reaches a target weight, and while the target weight is reached, filling in the next packaging bag and When the product is discharged as a non-defective product after being sealed and the target weight is not reached, the product is discharged as a defective product after being sealed with an insufficient filling amount. It is.

  In the remaining amount discharge mode, the determination as to whether or not the package to be filled in the packaging bag reaches the target weight is based on whether the package to be filled in the packaging bag by the measuring means is within the set time. It is preferable that it is determined by whether or not the weight is reached. During the production of a set quantity of product that can be produced with the amount of the packaged goods remaining in the filling means, when the detection means detects the supply of raw material from the upstream, it does not shift to the remaining amount discharge mode. The normal operation mode is preferably continued.

In addition, a device for solving the above problems includes a grip pair for gripping a packaging bag for storing an object to be packaged, a moving body for intermittently moving the grip pair for gripping the packaging bag for each of a plurality of packaging steps, Filling means for filling the packaging bag into the packaging bag, weighing means for weighing each of the articles to be packed filled in the packaging bag, and detection means for detecting the packaging object in the filling means And a sealing means for sealing the packaging bag containing the article to be packaged, and when the supply of the article to be packaged in the filling means is detected by the detection means, or manually The amount of the product that can be produced continuously with the amount of the packaging material remaining in the filling means can be continuously produced, and then the remaining amount of filling of the packaging material is performed at a low speed. In the discharge mode, It is determined whether or not the article to be packed filled in the packaging bag reaches the target weight through the quantity means, and the next packaging bag is filled and sealed as long as the target weight is reached. When the product is discharged and the target weight is not reached, the packaging machine is configured such that the product is discharged as a defective product by performing sealing while the filling amount is insufficient.

  In the remaining amount discharge mode, the determination as to whether or not the package to be filled in the packaging bag reaches the target weight is based on whether the package to be filled in the packaging bag by the measuring means is within the set time. It is preferable to be configured so as to be determined by whether or not the weight is reached. During the production of a set quantity of product that can be produced with the amount of the packaged goods remaining in the filling means, when the detection means detects the supply of raw material from the upstream, it does not shift to the remaining amount discharge mode. The normal operation mode is preferably continued.

According to the processing method of the remaining packaged article in the packaging machine according to claim 1, the packaged article remaining in the filling means can be used up at the time of switching the packaged product or at the end of production. It is unnecessary and the cleaning time is shortened, and the remaining package is sealed with an insufficient filling amount and discharged as a defective product, so that it can be recycled while maintaining the quality. In addition, before shifting to the remaining amount discharge mode, a set quantity of products that can be produced with the amount of the packaged articles remaining in the filling means can be quickly and efficiently produced in the normal operation mode.
According to the processing method of the remaining package in the packaging machine according to claim 2, in addition to the effect of claim 1, the package to be filled in the packaging bag in the remaining amount discharge mode reaches the target weight. It is possible to easily and surely determine whether or not.
According to the processing method of the residue material to be packaged in the packaging machine according to claim 3, in addition to the effects of the first aspect, when the detection of the supply shortage by the detection unit was temporary, the remaining emissions Transition to the mode can be prevented.
According to the packaging machine of the fourth aspect , it is possible to use up the packaging material remaining in the filling means at the time of switching the packaging material or at the end of production, eliminating the need for a separate discharge operation and shortening the cleaning time. At the same time, the remaining packaged items are sealed with insufficient filling amount and discharged as defective products, so that they can be recycled while maintaining the quality. In addition, before shifting to the remaining amount discharge mode, a set quantity of products that can be produced with the amount of the packaged articles remaining in the filling means can be quickly and efficiently produced in the normal operation mode.
According to the packaging machine of the fifth aspect , in addition to the effect of the fourth aspect , in the remaining amount discharge mode, it is simple to determine whether or not the article to be packaged filled in the packaging bag reaches the target weight. This can be done easily and reliably with the configuration.
According to the packaging machine of the sixth aspect , in addition to the effect of the fourth aspect , when the detection of the shortage of supply by the detecting means is temporary, the process proceeds to the remaining amount discharge mode. Can be prevented.

It is the plane schematic diagram of one Example of the packaging machine to which the processing method of the residual package in the packaging machine of this invention is applied. It is the front schematic of the packaging machine shown in FIG. It is explanatory drawing for demonstrating the main packaging processes of the packaging machine shown in FIG. It is a flowchart for demonstrating the characteristic effect | action of the packaging machine shown in FIG. It is a side view of the vicinity of the weighing means of the packaging machine shown in FIG. It is the plane schematic diagram of the site | part vicinity which performs a filling process in the packaging machine shown in FIG. It is a perspective view of the site | part vicinity which performs a filling process in the packaging machine shown in FIG. It is a perspective view of the site | part vicinity which performs a filling process in the packaging machine shown in FIG. It is a perspective view of the site | part vicinity which performs a filling process in the packaging machine shown in FIG. It is a perspective view of the site | part vicinity which performs a filling process in the packaging machine shown in FIG. It is a perspective view of the site | part vicinity which performs a filling process in the packaging machine shown in FIG. It is the plane schematic diagram of the other Example of the packaging machine to which the processing method of the residual package in the packaging machine of this invention is applied. It is the front schematic of the packaging machine shown in FIG. It is explanatory drawing for demonstrating the main packaging processes of the packaging machine shown in FIG. It is a flowchart for demonstrating the characteristic effect | action of the packaging machine shown in FIG.

  In the present invention, when the detection means detects a shortage of supply of the article to be packed in the filling means, or when it is automatically switched, the filling into the packaging bag via the weighing means is performed in the remaining amount discharge mode. It is determined whether the package to be packaged reaches the target weight, and while the target weight is reached, filling and sealing into the next packaging bag are performed and the product is discharged as a non-defective product, and when the target weight is not reached, Sealing is performed with the filling amount insufficient and the product is discharged as a defective product, so that the packaging material remaining in the filling means can be used up at the time of switching the packaging material or at the end of production, eliminating the need for discharge work. In addition to shortening the cleaning time, the present invention has realized a processing method and a packaging machine for residual packaging in a packaging machine that can recycle the residual packaging while maintaining its quality.

A packaging machine to which a method for treating a residual package in the packaging machine of the present invention is applied will be described with reference to an embodiment shown in FIGS.
The packaging machine 1 of this embodiment includes a plurality of claw units 3 provided with grip pairs 2 for gripping a packaging bag a that accommodates an article to be packaged, and a plurality of claw units 3 that are detachably held and a plurality of packaging steps A moving body 4 for intermittently moving the claw unit 3 every time, a weighing means 5 for weighing each of the plurality of claw units 3 separated from the moving body 4, and a packaged bag a with a packaged item A packaging machine having a filling means 6 for detecting, a detecting means 12 for detecting an object to be packaged in the filling means 6, and a sealing means 13 for sealing the packaging bag a containing the object to be packaged. When the detection means 12 detects that the supply of the packaged article in the filling means 6 is insufficient, or when the supply means is switched manually, in the remaining amount discharge mode S2, it is placed in the packaging bag a via the weighing means 5. The package to be filled reaches the target weight As long as the target weight is reached, the next packaging bag a is filled and sealed, and the product is discharged as a non-defective product. The product is discharged as a defective product. Hereinafter, in addition to the configuration of the packaging machine 1, a method for processing a residual package in the packaging machine in the packaging process will be described in detail.

  The packaging machine 1 is a rotary type packaging machine as shown in FIG. 1, and a claw unit 3 having a grip pair 2 for gripping a packaging bag a in a suspended form is intermittently rotated by a moving body (turn table) 4. It is an apparatus which moves and arranges sequentially in a several packaging process, accommodates the to-be-packaged item in the packaging bag a, and commercializes.

  The main packaging process of the packaging machine 1 is a bag-feeding process (0 process: refer to FIG. 3), a bag-feeding apparatus that turns the bags with a bag-feeding device, delivers the bags one by one to each grip pair 2, and a printer. A printing process (1 process: see FIG. 3) for printing the expiration date, etc. on the surface of the packaging bag a, a bag upper opening process (2 processes: see FIG. 3), which performs a print inspection and opens the upper part of the packaging bag a. Filling step (3 step: see FIG. 3) for filling the packaging bag a with the packaging bag a by means 6, and tapping the bottom of the packaging bag a filled with the packaging material to reduce the volume of the packaging material inside. Bottom-tack vibration process (4, 5 and 6 steps: refer to FIG. 3) for making the state good, and a blow-off process (7 steps) for blowing off the object to be packaged adhering to the bag inner surface and the bag mouth by the blow-off device. : Refer to Fig. 3), and the air remaining in the packaging bag a is excluded. After raising the bottom with the bottom raising device, the top seal process (8 steps: see Fig. 3) for heat-sealing the bag mouth with the sealing device, cooling the heat-sealed part, and then sorting the non-defective or defective products with the sorting chute In the packaging machine 1, the claw unit 3 including the grip pair 2 that holds the packaging bag a in a suspended manner is a movable body (turntable). ) By sequentially moving the respective steps according to 4), the article to be packaged is filled and packaged in the packaging bag a, and is discharged outside the system through the system discharge step.

  The claw units 3 provided with the grip pairs 2 for gripping the packaging bag a in a suspended manner are detachably attached around the moving body (turntable) 4 as many as the number of packaging steps.

  Specifically, as shown in FIG. 6, the movable body 4 is provided with a clamp opening / closing unit 7 and a pair of clamps 8 that can be opened and closed by expansion and contraction of the rod 7 a of the clamp opening / closing unit 7. By holding the locking portions 3a provided on each claw unit 3 from both sides, the claw unit 3 is attached around the moving body (turn table), and on the other hand, the clamp 8 is opened outward and the locking portion The claw unit 3 is configured to be separable from the moving body 4 by releasing the clamping of 3a.

  The weighing means 5 is for weighing the weights of the plurality of claw units 3 separated from the moving body 4, and is arranged at a portion where a filling process is performed as shown in FIG. The weighing means 5 of this embodiment is configured by a load cell, and the load cell 5 is configured to be movable up and down by a lifting means (claw unit lifting servomotor) 10 as shown in FIG.

  As shown in FIG. 5, a guide pin 9 is provided at the upper part of the load cell 5, while a pipe guide 11 is provided at the lower part of the claw unit 3, and the weighing means (load cell) 5 is moved up and down (claw unit lifting / lowering). As shown in FIG. 9, the guide pin 9 is inserted into the pipe guide 11, the claw unit 3 separated from the moving body 4 is lifted, and the claw unit 3 is configured so that it can be measured. Yes.

  The filling means 6 is for filling an object to be packaged in the packaging bag a, and is disposed above the portion where the filling process is performed. As shown in FIG. 2 or FIG. 6, the filling means 6 includes hoppers 14a and 14b, a filling jaw 6a for inserting an article to be packaged into the packaging bag a, and a filling jaw lifting / lowering unit. 9b, when filling an object to be packaged, as shown in FIG. 9, the filling jaw 6a is lowered by the filling jaw lifting / lowering unit 6b and inserted into the packaging bag a, and then the filling operation is performed. After the completion of filling, as shown in FIG. 11, the filling jaw 6a is raised by the filling jaw lifting / lowering unit 6b and pulled out from the packaging bag a.

  The detection means 12 is for detecting a shortage of supply of the packaged goods in the filling means 6. In this embodiment, as shown in FIG. 2, the detection means 12 is attached to the hopper 14 a of the filling means 6 and is detected. When the object to be packaged does not come into contact with the means (level sensor) 12 (when the object to be packaged in the hopper 14a falls below a certain level), a signal is detected as a lack of the object to be packaged, and the control unit (packaging machine main CPU) 15 to transmit. Further, the sealing means 13 (see step 8 in FIG. 3) is for sealing the packaging bag a that accommodates the article to be packaged.

  In the packaging machine 1, when the operation is started, as shown in the left flow of FIG. 4, prior to the packaging process, the plurality of claw units 3 are sequentially intermittently moved by the moving bodies 4, and the plurality of claw units are sequentially moved. The weights 3 are respectively weighed in advance by the weighing means 5, and the weight data of the individual claw units 3 are obtained.

  Specifically, when the packaging machine 1 is activated, the claw unit 3 that has reached the filling process by intermittently rotating the moving body 4 is released from the clamp 8 of the moving body 4 and can be separated from the moving body 4. It becomes a state. At the same time, the weighing means (load cell) 5 is raised by the elevating means (claw unit elevating servomotor) 10 to raise the claw unit 3. In this state, the claw unit 3 is weighed by the weighing means (load cell) 5 and the weight data of the claw unit 3 is stored in the control unit 15 of the packaging machine 1.

  In the operation in such a filling process, when the control unit 15 of the packaging machine 1 transmits a measurement start signal to the load cell controller, the weighing means (load cell) 5 measures the weight of the claw unit 3 and the weight data of the claw unit 3 is obtained. This is performed by being transmitted from the load cell controller to the control unit 15 of the packaging machine 1 together with the measurement completion signal and stored. Further, when the control unit 15 of the packaging machine 1 transmits the elevation command and the elevation amount to the servo amplifier, the weighing means (load cell) 5 and the claw unit 3 are moved up and down by the lifting means (claw unit lifting servo motor) 10 and the weighing is performed. In a state where the means (load cell) 5 lifts the claw unit 3, the weight of the claw unit 3 is measured, and control is performed so that weight data of the claw unit 3 is obtained.

  When the measurement of the weight data of one claw unit 3 and the storage in the control unit 15 of the packaging machine 1 are completed, the claw unit 3 is lowered by the lifting / lowering means (claw unit lifting / lowering servomotor) 10 together with the weighing means (load cell) 5. Then, it is captured by the clamp 8 and attached to the moving body 4.

  The moving body 4 rotates intermittently and conveys the next nail unit 3 to the filling process, and measures the weight data of the nail unit 3 including the packaging bag a and stores it in the control unit 15 of the packaging machine 1. Is done. By repeating such operations, the weight data of all the claw units 3 are measured and stored in the control unit 15 of the packaging machine 1. Thereby, when the moving body 4 makes one rotation, the weight data of all the claw units 3 are acquired.

  Thereafter, the moving body 4 holding the claw unit 3 rotates intermittently, whereby a plurality of packaging steps are sequentially performed. Specifically, as shown in the left-hand flow of FIG. 4, in the bag opening process in which the printing inspection is performed through the bag feeding process and the printing process and the upper part of the packaging bag a is opened, the printing inspection and the opening inspection are NG. When it becomes, it cancels filling, sealing, etc., it discharges out of the system, and when it becomes OK, it moves to a filling process.

  In the filling process, based on the target weight data for each claw unit 3 (the weight of the packaging bag a + the weight of the claw unit + the filling amount of the package), the weight of the claw unit 3 is set to the target weight as follows. Until this time, the filling means 6 fills the packaging bag a with the filling means 6 and net filling is performed.

  In the net filling, in a state where the upper end of the packaging bag a to be filled is opened (the state shown in FIG. 8), first, the filling jaw 6a is inserted into the package as shown in FIG. . After starting the large charging, the claw unit 3 is raised as shown in FIG. 10 to measure the filling amount. When the large charging is completed, the small charging is started. Weight measurement is started by the weighing means 5 in the middle of the small charging and filling. When the target weight is reached, the small charging is stopped, and as shown in FIG. 11, the filling jaw 6a is raised and removed from the packaging bag a. The nail unit 3 is lowered to complete the net filling operation.

  In addition, the operation | movement in such a filling process is performed when the control part 15 of the packaging machine 1 controls each part. Specifically, when the control unit of the packaging machine 1 transmits a measurement start signal and target weight data to the load cell controller, the weighing means (load cell) 5 performs weight measurement, and the target weight data previously transmitted to the load cell controller and The weight data is transmitted from the load cell controller to the control unit together with the measurement completion signal when the coincidence is confirmed. Further, when the control unit 15 of the packaging machine 1 transmits the elevation command and the elevation amount to the servo amplifier, the weighing means (load cell) 5 and the claw unit 3 are moved up and down by the lifting means (claw unit lifting servo motor) 10 and the weighing is performed. Control is performed so that the weight of the claw unit 3 is measured while the means (load cell) 5 lifts the claw unit 3 and the measured weight data of the claw unit 3 is obtained. Furthermore, filling control to the packaging bag a is performed by transmitting a filling command from the control unit 15 of the packaging machine 1 to the filling means 6 (filling machine).

  The packaging bag a that has been net-filled in the filling step is then subjected to a bottom-tack vibration process (steps 4, 5, 6: see FIG. 3), a blow-off step (7 step: see FIG. 3), and a top seal step (see FIG. 3). After 8 steps (see FIG. 3), it is cooled and sealed and discharged out of the system as a non-defective product or a defective product (the left flow in FIG. 4).

  On the other hand, in the packaging machine 1 of the present invention, when the shortage of the package in the filling unit 6 is detected by the detection unit 12 at the time of switching the package or at the end of production, or when switching is performed manually, Shifting to S1 in FIG. 4, the control unit 15 controls each unit so as to continuously produce a product with a set number of bags N that can be produced with the amount of the articles to be packaged remaining in the filling means 6. Control is performed to shift to the remaining amount discharge mode S2.

  Specifically, when the detection means 12 detects that the supply of the packaged goods in the filling means 6 is insufficient, or when it is manually switched, the preset number N of preset bags starts and the N bags Continue product production. When the count ends (counts up) and N bags of products are produced, the process proceeds to the remaining amount discharge mode S2. As described above, even when the supply of the packaged object in the filling unit 6 is detected to be insufficient by the detection unit 12 or when the detection unit 12 is switched manually, the filling unit 6 does not immediately shift to the remaining amount discharge mode. By producing a set quantity of products that can be produced with the amount of the remaining packaged items in the normal operation mode, the remaining packaged items can be processed more quickly and efficiently. However, in this embodiment, it is also set so that when it is manually switched, it can directly shift to the remaining amount discharge mode S2.

  4, when the detection unit 12 detects the supply of the raw material from the upstream during the production of the set quantity N of products that can be produced with the amount of the articles to be packaged remaining in the filling unit 6. The normal operation mode is continued without shifting to the remaining amount discharge mode S2. Thereby, when the detection of the supply shortage by the detection means 12 is temporary, the transition to the remaining amount discharge mode S2 is prevented.

  Then, in the remaining amount discharge mode S2, it is determined whether or not the article to be packed filled in the packaging bag a reaches the target weight via the measuring means 5, and the next packaging bag is reached until the target weight is reached. The product is discharged as a non-defective product by filling and sealing in a, and when the target weight is not reached, the product is discharged as a defective product by sealing with the filling amount insufficient. As a result, it is possible to use up the remaining packaging material in the filling means when switching the packaging material or at the end of production, eliminating the need for a separate discharge operation, reducing the cleaning time, and the remaining packaging material Sealing is performed with a shortage and the product is discharged as a defective product, so it can be recycled while maintaining quality.

  Specifically, in the remaining amount discharge mode S2, as shown in FIG. 4, the control unit 15 controls the servo motor that rotates the filling screw, so that the rotation speed of the filling screw of the filling means 6 (auger filling machine) is controlled. By making the speed low, the packing material is filled at a low speed.

  If it transfers to residual amount discharge mode S2, the driving | operation of the packaging machine 1 will start and a filling process (net filling) will be performed after a bag supply process, a printing process, and an opening and printing inspection process.

  The net filling is a state in which the upper end of the packaging bag a to be filled is opened (the state shown in FIG. 8). First, as shown in FIG. 9, the filling jaw 6a is inserted into the packaged object and the large charge filling is started. . After starting the large charging, the claw unit 3 is raised as shown in FIG. 10 to measure the filling amount. When the large charging is completed, the small charging is started. Weight measurement is started by the weighing means 5 in the middle of the small charge filling, and when the target weight (the weight of the packaging bag a + the weight of the claw unit + the filling amount of the package) is reached, the small charge is stopped, and FIG. As shown, the filling jaw 6a is raised and removed from the packaging bag a while the claw unit 3 is lowered to complete the net filling operation.

  The packaging bag a that has been net-filled in the filling process in the remaining amount discharge mode S2 is then subjected to a bottom-tack vibration process (steps 4, 5, and 6: see FIG. 3) and a blow-off process (step 7: see FIG. 3). After the top sealing process (8 processes: refer to FIG. 3), it is cooled and sealed and discharged out of the system as a non-defective product.

  While the target weight is reached in the filling process in the remaining amount discharge mode S2, it is determined that the raw material in the hopper 14 remains, and the filling process is repeated after the bag feeding process, the printing process, and the opening / printing inspection process. Is called.

  On the other hand, when the target weight is not reached in the filling process in the remaining amount discharge mode S2, it is determined that all the raw materials in the hopper have been used and the production is finished, and the claw unit 3 is lowered while filling is not completed. After passing through the bottom-tack vibration process (4, 5, 6 processes: see FIG. 3), the blow-off process (7 processes: see FIG. 3), and the top seal process (8 processes: see FIG. 3), It is discharged out of the system as a non-defective product. And the to-be-packaged object in the packaging bag a top-sealed in the state of incomplete filling can be recycled because the quality is maintained in the packaging bag a.

  In the remaining amount discharge mode S2, whether or not an article to be packed filled in the packaging bag a reaches the target weight is filled in the packaging bag a by the measuring means 5 via a timer. Judgment is made based on whether or not the packaged product reaches the target weight within the set time M. Thereby, in remaining amount discharge mode S2, it can be determined easily and reliably with a simpler structure whether the to-be-packaged object filled in the packaging bag a reaches a target weight. However, what is used when determining whether or not the target weight is reached within the set time M is not limited to the timer, and may be determined based on whether or not the target weight is reached within the set number of pulses, for example. .

  Next, a packaging machine 20 according to another embodiment of the present invention shown in FIGS. 12 to 15 will be described. The same components as those of the packaging machine 1 described above are denoted by the same reference numerals, and drawings showing the same components as the packaging machine 1 will be described with reference to the drawings of the packaging machine 1.

  The packaging machine 20 of this embodiment includes a plurality of claw units 3 provided with grip pairs 2 for holding a packaging bag a that accommodates an article to be packaged, and a plurality of claw units 3 that are detachably held and a plurality of packaging steps. A moving body 4 for intermittently moving the claw unit 3 every time, a weighing means 5 for weighing each of the plurality of claw units 3 separated from the moving body 4, and a packaged bag a with a packaged item A filling means 6 for performing the detection, a detection means 12 for detecting an object to be packaged in the filling means 6, and a sealing means 13 for sealing the packaging bag a containing the object to be packaged. Is a roughing auger filling machine 26 for filling a packaged bag a with a packaged article a and a correction auger filling machine 27 for filling a packaged bag a with a packaged article a. And the filling means 6 by the detection means 12 When the supply shortage of the packaged item is detected, or when manually switched, the packaged item filled in the packaging bag a through the measuring means 5 is set to the target weight in the remaining amount discharge mode. When the target weight is reached, the next packaging bag a is filled and sealed to be discharged as a non-defective product. The product is discharged as a defective product. Hereinafter, the processing method of the residual package in a packaging machine in a packaging process is explained in full detail with a structure of a packaging machine.

  The packaging machine 20 is a rotary type packaging machine as shown in FIG. It is an apparatus which moves and arranges sequentially in a several packaging process, accommodates the to-be-packaged item in the packaging bag a, and commercializes.

  The main packaging process of the packaging machine 20 is a bag-feeding process (0 process: refer to FIG. 14), a bag-feeding apparatus that turns the bags with a bag-feeding device, delivers the bags one by one to each grip pair 2, and a printer. A printing process (1 step: see FIG. 14) for printing the expiration date on the surface of the packaging bag a, a bag upper opening process (2 steps: see FIG. 14) for performing a print inspection and opening the upper part of the packaging bag a, packaging A filling step (3 steps: refer to FIG. 14) for filling the packaging bag a with the coarse filling auger filling machine 26 while applying a vibration by hitting the bottom of the bag a, and the packaging bag a filled with the packaging item a Bottom bottom vibration process (4 steps: refer to FIG. 14), weighing step using an in-line checker (5 steps: refer to FIG. 14), The shortage of the packaged items found by weighing A correction filling step (6 steps: see FIG. 14) for filling the inside of the packaging bag a by the auger filling machine 27 for normal filling, and a blower for blowing off the object to be packaged adhering to the bag inner surface and the vicinity of the bag mouth by air. Skipping step (7 steps: see FIG. 14), removing the air remaining in the packaging bag a and raising the bottom with the bottom raising device, and then heat sealing the bag mouth with the sealing device (8 steps: FIG. 14), after cooling the heat-sealed portion, a non-defective product or a non-defective product is discharged from the system with a sorting chute (9 steps: see FIG. 14). In the packaging machine 20, the packaging bag a The claw unit 3 provided with the grip pair 2 that holds the handle in a suspended manner is intermittently moved sequentially by a moving body (turn table) 4 so that an article to be packaged is placed in the packaging bag a. Is Hama are packaged, and is configured to be released to the outside through the outside of the system discharging process.

  The claw units 3 provided with the grip pairs 2 for gripping the packaging bag a in a suspended manner are detachably attached around the moving body (turntable) 4 as many as the number of packaging steps.

  Specifically, as shown in FIG. 6, the movable body 4 is provided with a clamp opening / closing unit 7 and a pair of clamps 8 that can be opened and closed by expansion and contraction of the rod 7 a of the clamp opening / closing unit 7. By holding the locking portions 3a provided on each claw unit 3 from both sides, the claw unit 3 is attached around the moving body (turn table), and on the other hand, the clamp 8 is opened outward and the locking portion The claw unit 3 is configured to be separable from the moving body 4 by releasing the clamping of 3a.

  The weighing means 5 is for weighing the weights of the plurality of claw units 3 separated from the moving body 4, and is arranged near the lower side of the correction filling auger filling machine 27 in the filling step as shown in FIG. ing. The weighing means 5 of this embodiment is configured by a load cell, and the load cell 5 is configured to be movable up and down by a lifting means (claw unit lifting servomotor) 10 as shown in FIG.

  As shown in FIG. 5, a guide pin 9 is provided at the upper part of the load cell 5, while a pipe guide 11 is provided at the lower part of the claw unit 3, and the weighing means (load cell) 5 is moved up and down (claw unit lifting / lowering). As shown in FIG. 9, the guide pin 9 is inserted into the pipe guide 11, the claw unit 3 separated from the moving body 4 is lifted, and the claw unit 3 is configured so that it can be measured. Yes.

  The filling means 6 is for filling an object to be packaged in the packaging bag a, and is disposed above the portion where the filling process is performed. As shown in FIG. 6 or FIG. 13, the filling means 6 includes a filling jaw 6a that is inserted into the packaging bag a and puts an article to be packed into the packaging bag a, a filling jaw lifting / lowering unit 6b, a hopper 24, A rough filling auger filling machine 26 for filling a packaged bag a with a packaged article a, and a correction auger filling machine 27 for filling a packaged bag a with a packaged article a, When filling the package, as shown in FIG. 9, the filling jaw 6a is lowered by the filling jaw lifting / lowering unit 6b and inserted into the packaging bag a, and then the filling operation is performed. As shown, the filling jaw lifting / lowering unit 6b raises the filling jaw 6a and pulls it out of the packaging bag a.

  The detection means 12 is for detecting a shortage of supply of the packaged goods in the filling means 6. In this embodiment, as shown in FIG. 13, the detection means 12 is attached to the hopper 24 of the filling means 6 and is detected. When the object to be packaged does not come into contact with the means (level sensor) 12 (when the object to be packaged in the hopper 24 falls below a certain level), a signal is detected as a lack of the object to be packaged and the control unit (packaging machine main CPU) 15 to transmit. Further, the sealing means 13 (see step 8 in FIG. 14) is for sealing the packaging bag a containing the article to be packaged.

  And in this packaging machine 20, when a driving | running is started, as shown to the left flow of FIG. 15, prior to a packaging process, the some nail | claw unit 3 is intermittently moved by the moving body 4, respectively, and several claw unit is carried out. The weights 3 are respectively weighed in advance by the weighing means 5, and the weight data of the individual claw units 3 are obtained.

  Specifically, when the packaging machine 20 is activated, the claw unit 3 that has reached the filling process by intermittently rotating the movable body 4 is released from the clamp 8 of the movable body 4 and can be separated from the movable body 4. It becomes a state. At the same time, the weighing means (load cell) 5 is raised by the elevating means (claw unit elevating servomotor) 10 to raise the claw unit 3. In this state, the claw unit 3 is weighed by the weighing means (load cell) 5 and the weight data of the claw unit 3 is stored in the control unit 15 of the packaging machine 20.

  In such an operation, when the control unit 15 of the packaging machine 20 transmits a measurement start signal to the load cell controller, the weighing means (load cell) 5 measures the weight of the claw unit 3, and the weight data of the claw unit 3 is a measurement completion signal. At the same time, it is transmitted from the load cell controller to the control unit 15 of the packaging machine 20 and stored. Further, when the control unit 15 of the packaging machine 20 transmits the elevation command and the elevation amount to the servo amplifier, the weighing means (load cell) 5 and the claw unit 3 are moved up and down by the lifting means (claw unit lifting servo motor) 10 and the weighing is performed. In a state where the means (load cell) 5 lifts the claw unit 3, the weight of the claw unit 3 is measured, and control is performed so that weight data of the claw unit 3 is obtained.

  When the weight data of one claw unit 3 is measured and stored in the control unit 15 of the packaging machine 20, the claw unit 3 is lowered by the lifting means (claw unit lifting servomotor) 10 together with the weighing means (load cell) 5. Then, it is captured by the clamp 8 and attached to the moving body 4.

  The moving body 4 rotates intermittently to convey the next nail unit 3 to the filling process, and measures the weight data of the nail unit 3 including the packaging bag a and stores it in the control unit 15 of the packaging machine 20. Is done. By repeating such operations, the weight data of all the claw units 3 are measured and stored in the control unit 15 of the packaging machine 20. Thereby, when the moving body 4 makes one rotation, the weight data of all the claw units 3 are acquired.

  Thereafter, the moving body 4 holding the claw unit 3 rotates intermittently, whereby a plurality of packaging steps are sequentially performed. Specifically, as shown in the left-hand flow in FIG. 15, in the bag opening process in which the printing inspection is performed through the bag feeding process and the printing process and the upper part of the packaging bag a is opened, the printing inspection and the opening inspection are NG. When it becomes, it cancels filling, sealing, etc., it discharges out of the system, and when it becomes OK, it moves to a filling process.

  In the filling process, rough filling is performed by rotating the filling screw of the coarse filling auger filling machine 26 by a predetermined rotation angle (target pulse number) with a servo motor. Thereafter, the filling amount is measured by an in-line checker through a bottom-tack vibration process, and the filling screw of the correction filling auger filling machine 27 is rotated by a servo motor in the correction filling process.

  The packaging bag a filled with the article to be packaged is then cooled and sealed after passing through a blowing step (7 steps: see FIG. 14) and a top sealing step (8 steps: see FIG. 14). It is discharged out of the system as a non-defective product (the left flow in FIG. 15).

  On the other hand, in the packaging machine 20 of the present invention, when the supply of the packaged material in the filling unit 6 is detected by the detection unit 12 at the time of switching the packaged item or at the end of production, the packaging machine 20 is switched manually. In this case, the process proceeds to S3 in FIG. 15, and the control unit 15 controls each unit so as to produce in the normal operation mode a product with a set number of bags N that can be produced with the amount of the packaged articles remaining in the filling means 6. Then, control is performed to shift to the remaining amount discharge mode S4.

  Specifically, when the detection unit 12 detects that the supply of the packaged item in the filling unit 6 is insufficient, or when the detection unit 12 is manually switched, the preset number N of set bags starts and N Continue to produce bag products. When the count ends (counts up) and N bags of products are produced, the process proceeds to the remaining amount discharge mode S4. As described above, when the detection unit 12 detects the shortage of the objects to be packaged in the filling unit 6 or when the detection unit 12 is manually switched, the filling unit 6 does not immediately shift to the remaining amount discharge mode. By producing a set quantity of products that can be produced with the amount of the remaining packaged items in the normal operation mode, the remaining packaged items can be processed more quickly and efficiently. However, in this embodiment, it is also set so that when it is manually switched, it can directly shift to the remaining amount discharge mode S4.

  When the detection means 12 detects a shortage of supply of the packaging material in the filling means 6, the process proceeds to S <b> 3 in FIG. 15, and the set quantity N that can be produced with the amount of the packaging material remaining in the filling means 6 During the production of the product, when the detection means 12 detects the supply of the raw material from the upstream, the normal operation mode is continued without shifting to the remaining amount discharge mode S4. This prevents the shift to the remaining amount discharge mode S4 when the detection of the supply shortage by the detection means 12 is temporary.

  In the remaining amount discharge mode S4, it is determined whether or not the article to be packed filled in the packaging bag a reaches the target weight via the measuring means 5, and the next packaging bag is reached until the target weight is reached. The product is discharged as a non-defective product by filling and sealing in a, and when the target weight is not reached, the product is discharged as a defective product by sealing with the filling amount insufficient. As a result, it is possible to use up the remaining packaging material in the filling means when switching the packaging material or at the end of production, eliminating the need for a separate discharge operation, reducing the cleaning time, and the remaining packaging material Sealing is performed with a shortage and the product is discharged as a defective product, so it can be recycled while maintaining quality.

  Specifically, in the remaining amount discharge mode S4, the operation mode of the packaging machine 20 is changed from the normal operation mode to the standby operation, and the control unit 15 controls the servo motor that rotates the filling screw to perform rough filling. By filling the auger filling machine 26 and the correction filling auger filling machine 27 with a low rotation speed of the filling screw, the packing material is filled at a low speed.

  When shifting to the remaining amount discharge mode S4, the operation of the packaging machine 20 is started, and the filling process is performed after the bag feeding process, the printing process, and the opening / printing inspection process.

  In the filling process, rough filling is performed by rotating the filling screw of the coarse filling auger filling machine 26 by a predetermined rotation angle (target pulse number) with a servo motor. Thereafter, the filling amount measurement by the inline checker is canceled through the bottom-tack vibration process, and the net filling is performed by the correction filling auger filling machine 27.

  In the net filling, after the claw unit 3 is raised and the rough filling amount is measured, the filling jogo 6a is inserted into the package as shown in FIG. When the large throwing filling target weight is reached by the large throwing, the small throwing filling is started. When the target weight (the weight of the packaging bag a + the weight of the claw unit + the filling amount of the object to be packed) is reached by the small charging, the small charging is stopped and the packing jaw 6a is raised as shown in FIG. While removing from a, the claw unit 3 is lowered and the net filling operation is completed.

  The packaging bag a that has been net-filled in the remaining amount discharge mode S4 is then cooled and sealed after undergoing a blow-off process (7 process: refer to FIG. 14) and a top seal process (8 process: refer to FIG. 14). It is discharged out of the system as a non-defective product.

  While the target weight is reached in the filling process in the remaining amount discharge mode S4, it is determined that the raw material in the hopper 14 remains, and the filling process is repeated after the bag feeding process, the printing process, and the opening / printing inspection process. Done.

  On the other hand, when the target weight is not reached in the filling process in the remaining amount discharge mode S4 (when the target weight is not reached even by filling from the coarse filling auger filling machine 26 and filling from the correction filling auger filling machine 27), The claw unit 3 descends without filling, and after passing through the blow-off process (7 process: refer to FIG. 14) and the top seal process (8 process: refer to FIG. 14), it is cooled and sealed and discharged out of the system as a defective product. Is done. While defective products that do not reach the target weight by filling from the auger filling machine 26 for rough filling and filling from the auger filling machine 27 for correction filling are produced, they are sealed as unfinished and are treated as defective products. It is discharged outside. An article to be packaged in the packaging bag a that is top-sealed in an unfilled state can be recycled because the quality is maintained in the packaging bag a.

  In the remaining amount discharge mode S4, the determination whether or not the packaged material filled in the packaging bag a reaches the target weight is set by the weighing unit 5 in which the packaged material filled in the packaging bag a is set. The determination is made based on whether or not the target weight is reached within time M. Thereby, in remaining amount discharge mode S4, it can be determined easily and reliably by a simpler structure whether the to-be-packaged object with which the packaging bag a is filled reaches target weight. However, what is used when determining whether or not the target weight is reached within the set time M is not limited to the timer, and may be determined based on whether or not the target weight is reached within the set number of pulses, for example. .

  In addition, each of the above embodiments is a rotary type packaging machine, but a packaging machine in which the method for processing a residual package in the packaging machine of the present invention is applied to a known linear movement type packaging machine is also included in the scope of the present invention. Is done.

1 Packaging machine 2 Grip pair 3 Claw unit 4 Moving body (turntable)
5 Weighing means (load cell)
6 Filling means (filling machine)
7 Clamp opening / closing unit 8 Clamp 9 Guide pin 10 Lifting means (claw unit lifting device)
11 Pipe guide 12 Detection means 13 Sealing means 14a, 14b Hopper 15 Control unit

Claims (6)

A grip pair for gripping a packaging bag for containing a packaged article, a moving body for intermittently moving the grip pair holding the packaging bag for each of a plurality of packaging steps, and for filling the packaged bag in the packaging bag Filling means, weighing means for weighing the packaged articles filled in the packaging bag, detection means for detecting the packaged article in the filling means, and packaging bag containing the packaged article A method for treating a residual package in a packaging machine having a sealing means for sealing,
When a shortage of supply of the packaged object in the filling unit is detected by the detection unit, or when switching is performed manually, a set quantity of products that can be produced with the amount of the packaged item remaining in the filling unit is obtained. Whether the package to be filled in the packaging bag through the weighing means reaches the target weight in the remaining amount discharge mode in which the product is configured to be continuously produced and then filled with the package at a low speed . As long as the target weight is reached, the next packaging bag is filled and sealed, and the product is discharged as a non-defective product. A method for processing a residual package in a packaging machine, wherein the product is discharged as a defective product.   In the remaining amount discharge mode, the determination as to whether or not the package to be filled in the packaging bag reaches the target weight is based on whether the package to be filled in the packaging bag by the measuring means is within the set time. The method for processing a residual package in the packaging machine according to claim 1, wherein the determination is made based on whether the weight is reached. During the production of a set quantity of product that can be produced with the amount of the packaged goods remaining in the filling means, when the detection means detects the supply of raw material from the upstream, it does not shift to the remaining amount discharge mode. the method for treating the residue material to be packaged in the packaging machine according to claim 1 or 2 is intended to continue the normal operation mode. A grip pair for gripping a packaging bag for containing a packaged article, a moving body for intermittently moving the grip pair holding the packaging bag for each of a plurality of packaging steps, and for filling the packaged bag in the packaging bag Filling means, weighing means for weighing the packaged articles filled in the packaging bag, detection means for detecting the packaged article in the filling means, and packaging bag containing the packaged article A packaging machine having sealing means for sealing,
When a shortage of supply of the packaged object in the filling unit is detected by the detection unit, or when switching is performed manually, a set quantity of products that can be produced with the amount of the packaged item remaining in the filling unit is obtained. Whether the package to be filled in the packaging bag through the weighing means reaches the target weight in the remaining amount discharge mode in which the product is configured to be continuously produced and then filled with the package at a low speed . As long as the target weight is reached, the next packaging bag is filled and sealed, and the product is discharged as a non-defective product. A packaging machine configured to be discharged as a defective product.   In the remaining amount discharge mode, the determination as to whether or not the package to be filled in the packaging bag reaches the target weight is based on whether the package to be filled in the packaging bag by the measuring means is within the set time. The packaging machine according to claim 5, wherein the packaging machine is configured to be determined based on whether the weight is reached. During the production of a set quantity of product that can be produced with the amount of the packaged goods remaining in the filling means, when the detection means detects the supply of raw material from the upstream, it does not shift to the remaining amount discharge mode. The packaging machine according to claim 4 , wherein the packaging machine is configured to continue the normal operation mode.

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