JP2012176599A - Feeding apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a feeding apparatus capable of eliminating waste caused by raw materials remaining when the operation is stopped.SOLUTION: The feeding apparatus 1 includes an adjustment and stop function. When turning on the adjustment and stop function, the remaining feeding amount to feed to a molding machine 2 after turning on is set so as to stop the operation of the feeding apparatus 1 and the molding machine 2 with a stop timing displayed on an operation panel when the adjustment and stop function is turned on based on the storage amount of the raw materials in a mixing unit 19, a feed pipe 26, and a molding machine hopper 27, and a product weight set by the operation of the operation panel without leaving remaining amounts in the mixing unit 19, the feed pipe 26, and the molding machine hopper 27. Then, the operation of the feeding apparatus 1 is stopped based on the remaining feeding amount set thereby.

Description

  The present invention relates to a supply device that supplies raw materials of processed products to a processing machine such as a molding machine.

  For example, a molding machine for manufacturing a resin molded product is connected to a metering and mixing device that measures each raw material such as resin pellets, pulverized material, master batch, and additive and mixes the measured raw materials.

  The measuring and mixing apparatus includes a plurality of raw material hoppers. The raw material is supplied to each raw material hopper from each raw material tank by pneumatic transportation. The metering and mixing device is provided with a metering hopper for metering the raw material supplied from each raw material tank. A plurality of raw materials are supplied to the weighing hopper at a predetermined blending ratio based on the measurement of each raw material. Then, raw materials of a predetermined blending ratio are supplied from the weighing hopper to the mixing unit, and the raw materials are sufficiently mixed in the mixing unit. The raw material mixture thus obtained is supplied to a molding machine through piping.

JP 2010-107472 A

  When a predetermined number of resin molded products are manufactured by the molding machine, the operation of the molding machine is stopped and the operation of the metering and mixing device is stopped. When the operation of the metering / mixing device is stopped, the raw material remains in the pipe connected to the mixing unit and the molding machine. For example, when the mixing ratio of raw materials to be supplied to the molding machine is changed, the raw materials left in the mixing unit must be discarded before the supply of raw materials with a new mixing ratio is started. , Raw materials are wasted.

  The objective of this invention is providing the supply apparatus which can eliminate the waste by a raw material remaining when operation | movement is stopped.

  In order to achieve the above-mentioned object, the present invention provides a transporting means for transporting a raw material of a processed product to a processing machine for manufacturing the processed product, and a raw material transported to the processing machine by the transporting means, The storage means for storing and the mass of the raw material are measured, the measured raw material is supplied to the storage means, and the batch operation is repeated with one measurement and the supply of the measured raw material as one batch operation. A supply means for executing, a storage amount detection means for detecting the amount of raw material stored in the storage means, a stop condition setting means for setting a condition for stopping production of a processed product in the processing machine, and the storage amount Based on the amount of storage detected by the detection means and the amount of raw material used for manufacturing one processed product in the processing machine, the condition set by the stop condition setting means is satisfied, and the A residual supply amount setting means for setting a residual supply amount that is an amount of the raw material to be supplied to the processing machine after setting the conditions by the stop condition setting means so that no raw material remains in the distilling means; and the residual supply amount Based on the remaining supply amount set by the setting means, stop control means for stopping the operation of the transport means and the supply means, and the supply in a plurality of batch operations before stop of the manufacture of the processed product in the processing machine Supply amount adjusting means for adjusting the supply amount of the raw material supplied from the means to the storage means so that no raw material remains in the storage means.

  The raw material of the processed product manufactured by the processing machine is supplied to the storage unit by the supply unit. The supply means repeatedly executes the batch operation with one measurement and the supply of the measured raw material as one batch operation. The raw material is temporarily stored in the storage means and then transported to the processing machine by the transport means. The amount of the raw material stored in the storage means is detected by the storage amount detection means.

  This supply device has stop condition setting means. The stop condition setting means sets a condition for stopping production of the processed product in the processing machine. When this condition is set, the adjustment stop function, which is a function for stopping the operation of the supply device, is turned on without leaving the raw material in the storage means.

For the adjustment stop function, the supply device has a remaining supply amount setting means. The remaining supply amount setting means, based on the amount of raw materials used in the manufacture of pressurized pyrotechnic in storage amount and machine detected by the storage amount detecting means, supplied to the machine after setting the condition by stop condition setting means The remaining supply, which is the amount of raw material to be done, is determined. Specifically, the remaining supply amount is set so that the condition set by the stop condition setting unit is satisfied and no raw material remains in the storage unit. Then, based on the set remaining supply amount, the operations of the transportation means and the supply means are stopped.

  Further, this supply device has supply amount adjusting means. The supply amount of the raw material supplied from the supply means to the storage means is adjusted by the supply amount adjustment means. The supply amount at this time is adjusted to an amount such that the raw material does not remain in the storage means in a plurality of batch operations before the production of the processed product in the processing machine is stopped.

  Thereby, it can prevent that a raw material remains in a storage means after the operation | movement of a transport means and a supply means stops. In other words, the operation of the transportation means and the supply means can be stopped while the raw material stored in the storage means is used up. Therefore, waste due to the remaining raw material in the storage means can be eliminated. As a result, the raw material cost required for manufacturing the processed product can be reduced.

  The supply adjustment unit is configured to perform each batch operation so that the individual supply amount, which is the mass of the raw material supplied to the storage unit in each batch operation of a plurality of batch operations, is not less than the minimum measurement value that can be measured by the supply unit. It is preferable to adjust the individual supply amount.

  Thereby, in each batch operation | movement, the raw material of an individual supply amount can be measured accurately.

  The supply device preferably includes condition changing means for changing the condition after the condition is set by the stop condition setting means.

  In this case, the condition can be changed after the condition is set by the stop condition setting means. For example, if an excess or deficiency occurs in the number of manufactured products in the processing machine after setting the conditions by the stop condition setting means, a condition for stopping the production of the processed product in the processing machine is set so as to eliminate the excess or deficiency. Can be changed.

  When the condition set by the stop condition setting means is changed, the remaining supply amount is corrected based on the changed condition, and the operations of the transportation means and the supply means are stopped based on the corrected remaining supply amount. It is preferable.

  Thereby, even if conditions change, operation | movement of a transport means and a supply means can be stopped in the state by which the raw material stored by the storage means was used up.

  A plurality of transportation means may be provided corresponding to a plurality of processing machines. In this case, a condition for stopping the production of the processed product is set for each processing machine, the set conditions are satisfied, and the conditions of each condition by the stop condition setting means are set so that no raw material remains in the storage means. It is preferable to calculate the remaining supply amount that is the amount of the raw material to be supplied to each processing machine after the setting. And it is preferable that operation | movement of each transport means and a supply means is stopped based on the remaining supply amount calculated for every processing machine.

  Thereby, even if it is the structure which supplies a raw material to a some processing machine, the operation | movement of a transport means and a supply means can be stopped in the state by which the raw material stored by the storage means was used up.

  The supply apparatus may further include a cleaning unit that cleans the storage unit after the transportation unit and the supply unit are stopped.

  For example, when the raw material supplied to the storage means is a mixture of a plurality of types of granular materials, and the mixing ratio of the granular materials in the raw materials to be supplied to the processing machine is frequently changed, a cleaning means is provided in the supply device. It is preferable that it is provided.

  Since the storage means is cleaned by the cleaning means before the mixing ratio of the granular material is changed, the raw material before the change can be prevented from being mixed with the raw material after the change of the mixing ratio, and the changed raw material can be used. High quality processed products can be manufactured.

  The supply means supplies the raw material formed by blending a plurality of types of granular materials including the pulverized material to the storage means, and the supply device is accommodated in the pulverized material accommodation means in which the pulverized material is accommodated and the pulverized material accommodation means. A pulverized material amount detecting means for detecting the amount of the pulverized material, and a blending change means for changing the blending amount of the pulverized material in the raw material according to the amount of the pulverized material detected by the pulverizing agent amount detecting means. You may prepare.

  According to the present invention, it is possible to eliminate waste due to the raw material remaining in the storage means. As a result, the raw material cost required for manufacturing the processed product can be reduced.

FIG. 1 is a configuration diagram of a molding system in which a supply device according to an embodiment of the present invention is used. FIG. 2 is a diagram illustrating a first example of a screen of the operation panel. FIG. 3 is a block diagram illustrating an electrical configuration of the supply device. FIG. 4 is a flowchart (part 1) of the adjustment stop process. FIG. 5 is a flowchart (part 2) of the adjustment stop process. FIG. 6 is a diagram illustrating a second example of the screen of the operation panel. FIG. 7 is a diagram illustrating a third example of the screen of the operation panel. FIG. 8 is a flowchart of the pulverized material adjustment process. FIG. 9 is a flowchart (part 1) of the automatic cleaning process. FIG. 10 is a flowchart (part 2) of the automatic cleaning process. FIG. 11 is a diagram illustrating a configuration in which a plurality of molding machines are connected to one supply device. FIG. 12 is a flowchart (part 1) showing a flow of a supply operation in a configuration in which a plurality of molding machines are connected to one supply apparatus. FIG. 13 is a flowchart (part 2) showing a flow of a supply operation in a configuration in which a plurality of molding machines are connected to one supply device. FIG. 14 is a flowchart (No. 3) showing a flow of a supply operation in a configuration in which a plurality of molding machines are connected to one supply device.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a configuration diagram of a molding system in which a supply device according to an embodiment of the present invention is used.

  In this molding system, the supply device 1 is connected to the molding machine 2. In the supply apparatus 1, for example, resin pellets (main material), pulverized material, master batch, and additive raw materials (powder particles) are mixed at a predetermined blending ratio. Then, the mixed raw material is supplied from the supply device 1 to the molding machine 2, and a resin molded product is manufactured in the molding machine 2.

  The supply device 1 includes four raw material hoppers 3. Resin pellets (main material), pulverized material, masterbatch and additives are supplied to the four raw material hoppers 3 by pneumatic transportation. Specifically, a raw material supply line 5 extending from a raw material tank 4 in which resin pellets (main material), a pulverized material, a master batch, and additives are stored is connected to the four raw material hoppers 3. Each raw material hopper 3 is connected to an intake line 7 extending from the blower 6. An intake valve 8 is interposed in the middle of the intake line 7.

  When the intake valve 8 is opened while the blower 6 is in operation, the air in the raw material hopper 3 is sucked into the intake line 7 and the raw material stored in the raw material tank 4 passes through the raw material supply line 5. The raw material hopper 3 is supplied.

  In FIG. 1, only one raw material tank 4 is shown. The number of raw material hoppers 3 is not limited to four, but may be three or less, or may be five or more.

  Each raw material hopper 3 is provided with a screw feeder 9. The screw feeder 9 includes a supply pipe 10 communicating with the inside of the raw material hopper 3, a screw auger 11 disposed in the supply pipe 10, a feed motor 12 for rotating the screw auger 11, and a tip opening 13 of the supply pipe 10. And a gate shutter 14 that opens and closes.

  The raw material in the raw material hopper 3 flows into the supply pipe 10. When the feed motor 12 is turned on with the gate shutter 14 being opened, the screw auger 11 rotates, and the screw auger 11 feeds the raw material toward the tip opening 13 through the supply pipe 10. The raw material that has reached the tip opening 13 of the supply pipe 10 falls from the tip opening 13.

  The raw material falling from the supply pipe 10 is received by the weighing hopper 15. The lower part of the weighing hopper 15 has a tapered shape. The lower end of the weighing hopper 15 is opened as a discharge port 16. The weighing hopper 15 is provided with a gate shutter 17 that opens and closes the discharge port 16. The weighing hopper 15 is provided with a load cell 18 for measuring the mass of the raw material stored in the weighing hopper 15.

  In the state where the gate shutter 17 is closed, the raw material falling from the supply pipe 10 is received by the weighing hopper 15, whereby the raw material is stored in the weighing hopper 15. Then, when the gate shutter 17 is opened while the raw material is stored in the weighing hopper 15, the raw material in the weighing hopper 15 falls through the discharge port 16.

  A mixing unit 19 is disposed below the weighing hopper 15. The mixing unit 19 includes a mixer 20, a supply hopper 21 disposed below the mixer 20, a connection pipe 22 connecting the mixer 20 and the supply hopper 21, and a shutter valve 23 for opening and closing the connection pipe 22. I have.

  The raw material falling from the weighing hopper 15 is received by the mixer 20. When the shutter valve 23 is closed, the material falling from the weighing hopper 15 is received by the mixer 20, whereby the material is stored in the mixer 20. In the mixer 20, a stirring blade 25 that is rotationally driven by a stirring motor 24 is accommodated. The raw material stored in the mixer 20 is stirred by the rotation of the stirring blade 25. When the raw materials in the mixer 20 are sufficiently mixed by this stirring, the shutter valve 23 is opened, and the mixed raw materials are supplied to the supply hopper 21 through the connection pipe 22.

  One end of a supply pipe 26 is connected to the lower end of the supply hopper 21.

  On the other hand, the molding machine 2 includes a molding machine hopper 27. The other end of the supply pipe 26 is connected to a molding machine hopper 27. Also. An intake line 28 extending from the blower 6 is connected to the molding machine hopper 27. An intake valve 29 is interposed in the middle of the intake line 28.

  When the intake valve 29 is opened while the blower 6 is operating, the air in the molding machine hopper 27 is sucked into the intake line 28, and the raw material stored in the supply hopper 21 passes through the supply pipe 26. It is supplied to the molding machine hopper 27. In the molding machine 2, the raw material is supplied from the molding machine hopper 27 to the molding die, and a resin molded product made of the raw material is manufactured.

  In addition, the molding machine 2 is provided with a pulverized material container 30 that collects and stores the pulverized material generated by the production of the resin molded product. The pulverized material collected in the pulverized material container 30 is sent to the raw material hopper 3 that stores the pulverized material.

  The four intake lines 7 and the intake line 28 are gathered in the middle thereof and connected to the blower 6 as one line. The intake valve 8 is interposed in parts of the four intake lines 7 that are separated from each other. Further, the intake valve 29 is interposed in a portion separated from the intake line 7.

  FIG. 2 is a diagram illustrating a first example of a screen of the operation panel.

  The supply apparatus 1 includes an operation panel 31 that includes a display with a touch panel.

  Various types of information regarding the operation of the supply device 1 are displayed on the operation panel 31. The displayed information includes, for example, the product weight that is the weight (mass) of one resin molded product manufactured by the molding machine 2, and the number of resin molded products that are packed in one box. And the molding capability (mass of the raw material used per unit time) in the molding machine 2 is displayed. These pieces of information can be input by operating the operation panel 31 on a screen different from the screen shown in FIG. Moreover, the blending ratio of the resin pellet, the pulverized material, the master batch and the additive can be set on the other screen. Further, the operation panel 31 displays the number of remaining productions, which is the number of resin molded products that can be manufactured using only the raw materials currently stored in the mixing unit 19, the supply pipe 26 and the molding machine hopper 27. The

  The supply device 1 has an adjustment stop function that is a function of stopping the operations of the supply device 1 and the molding machine 2 without leaving raw materials in the mixing unit 19, the supply pipe 26 and the molding machine hopper 27. The operation panel 31 displays the timing of stopping the operations of the supply device 1 and the molding machine 2 by the adjustment stop function. The operation panel 31 also displays an automatic operation button 32 and an adjustment stop button 33 for setting the adjustment stop function. When the adjustment stop button 33 is pressed after the automatic operation button 32 is pressed, the adjustment stop function is turned on. The adjustment stop function can be released (turned off) by long-pressing the automatic operation button 32 (for example, pressing and holding for 2 seconds or more). Further, an increase button (“+” button) 34 and a decrease button (“−” button) 35 for finely adjusting the number of resin molded products to be manufactured by the molding machine 2 while using the adjustment stop function are displayed. The

  FIG. 3 is a block diagram illustrating an electrical configuration of the supply device.

  The supply apparatus 1 includes a control unit 41 that includes a microcomputer including a CPU, a RAM, a ROM, and the like.

  A detection signal from the load cell 18 is input to the control unit 41. In addition, an operation panel 31 is electrically connected to the control unit 41 so that an operation signal of the operation panel 31 is input. Further, a signal indicating the operating state (running or stopped) of the molding machine 2 is input from the molding machine 2 to the control unit 41.

  The control unit 41 is a functional process that realizes the storage amount calculation unit 42, the remaining production number calculation unit 43, the remaining supply amount setting unit 44, the display control unit 45, and the drive control unit 46 in software by program processing by the CPU. Have as part.

  Based on the signal input from the molding machine 2, the detection signal input from the load cell 18, and the operation signal input from the operation panel 31, the storage amount calculator 42 is mixed with the mixing unit 19, the supply pipe 26 and the molding machine hopper 27. The storage amount which is the mass of the raw material stored in the inside is calculated. Specifically, the storage amount calculation unit 42 stores the total mass (total mass value) of the raw materials weighed by the weighing hopper 15 based on the detection signal of the load cell 18 in the RAM. Further, the storage amount calculation unit 42 constantly monitors the operating state of the molding machine 2. Then, the storage amount calculation unit 42 calculates the total mass of the raw materials used in the molding machine 2 from the start of operation of the supply device 1 and the molding machine 2 based on the product weight and molding capacity set by the operation of the operation panel 31. The storage amount is calculated by calculating and subtracting the total mass from the total mass of the raw material weighed by the weighing hopper 15.

  Based on the storage amount calculated by the storage amount calculation unit 42 and the product weight set by operating the operation panel 31, the remaining production number calculation unit 43 can be manufactured using only the raw material of the calculated storage amount. The number of remaining products, which is the number of resin molded products, is calculated.

  The remaining supply amount setting unit 44 is set by the storage amount calculated by the storage amount calculation unit 42, the mass of the raw material supplied from the weighing hopper 15 to the mixing unit 19 in one batch operation described later, and the operation of the operation panel 31. Based on the product weight and the number of boxes, the adjustment stop function calculates how many boxes filled with resin molded products are made by the molding machine 2 before the operations of the supply device 1 and the molding machine 2 are stopped. . Specifically, the mass (total amount) of the raw material supplied from the weighing hopper 15 to the mixing unit 19 in the adjustment batch operation (for example, 3 batch operation) described later is added to the storage amount calculated by the storage amount calculation unit 42. The quotient obtained by dividing the added value by the product weight and the number of packed boxes is the number of boxes that are produced before the operation of the supply device 1 and the molding machine 2 is stopped by the adjustment stop function. .

  The remaining supply amount setting unit 44 is set by the storage amount calculated by the storage amount calculation unit 42, the mass of the raw material supplied from the weighing hopper 15 to the mixing unit 19 in one batch operation described later, and the operation of the operation panel 31. Based on the weight of the product and the number of boxes, the remaining supply, which is the amount of raw material to be supplied from the supply device 1 to the molding machine 2 before the operation of the supply device 1 and the molding machine 2 is stopped by the adjustment stop function Set the amount. Specifically, the mass (total amount) of the raw material supplied from the weighing hopper 15 to the mixing unit 19 in the adjustment batch operation (for example, 3 batch operation) described later is added to the storage amount calculated by the storage amount calculation unit 42. The added value is divided by the product weight multiplied by the number of boxes. A value obtained by subtracting the remainder obtained by this division from the total amount is set as the remaining supply amount.

  The display control unit 45 causes the operation panel 31 to display the remaining production number calculated by the remaining production number calculation unit 43. Further, the number of boxes calculated by the remaining supply amount setting unit 44 is displayed on the operation panel 31 as the stop timing by the adjustment stop function.

  Based on the detection signal of the load cell 18, the blending ratio set by the operation of the operation panel 31, and the remaining supply amount set by the remaining supply amount setting unit 44, the drive control unit 46, the blower 6, the intake valves 8, 29, The drive of the feed motor 12, gate shutters 14 and 17, shutter valve 23, and agitation motor 24 is controlled.

  By this control, the raw materials of resin pellets, pulverized material, master batch and additive are mixed at a predetermined blending ratio, and the mixed raw materials are supplied from the supply device 1 to the molding machine 2. Specifically, when the operations of the supply device 1 and the molding machine 2 are started, the control unit 41 issues a request (batch weighing request) for weighing one batch of raw material to the weighing hopper 15. When this batch weighing request is issued, the drive control unit 46 sets a target amount that is the mass of each raw material to be supplied from each raw material hopper 3 to the weighing hopper 15 based on a predetermined blending ratio. Thereafter, the feed motor 12 and the gate shutter 14 are controlled while referring to the detection signal of the load cell 18, whereby the raw material is supplied from the single raw material hopper 3 to the weighing hopper 15, and the target amount of raw material is measured. When supplied to the hopper 15, the supply is stopped. Next, the supply of the raw material from another raw material hopper 3 to the weighing hopper 15 is started, and when a target amount of the raw material is supplied to the weighing hopper 15, the supply is stopped. In this way, when a target amount of raw material is supplied from each raw material hopper 3 to the weighing hopper 15, raw materials having a predetermined blending ratio are stored in the weighing hopper 15. Thereafter, the gate shutter 17 is opened, whereby the raw material in the weighing hopper 15 is supplied to the mixing unit 19. The above operation is regarded as one batch operation, and the batch operation is repeated. The raw material supplied to the mixing unit 19 in each batch operation is supplied to the molding machine hopper 27 via the supply pipe 26 by opening the intake valve 29 while the shutter valve 23 is opened and the blower 6 is driven. Transported.

  During the supply of the raw material from the supply device 1 to the molding machine 2, the operation panel 31 displays the stop timing by the adjustment stop function. When the automatic operation button 32 is pressed, the stop timing displayed on the operation panel 31 blinks. In this state, when the adjustment stop button 33 is pressed, the adjustment stop function is turned on. After the adjustment stop button 33 is pressed, the remaining supply amount of raw material set by the remaining supply amount setting unit 44 is supplied from the weighing hopper 15 to the mixing unit 19, and all the raw materials are supplied from the mixing unit 19 to the molding machine. When supplied to 2, the operation of the supply device 1 is stopped. Thereafter, when all the raw materials in the molding machine hopper 27 are used up, the operation of the molding machine 2 is stopped.

  When the operations of the supply device 1 and the molding machine 2 are stopped by the adjustment stop function, in the final batch operation immediately before the operations of the supply device 1 and the molding machine 2 are stopped, It is assumed that the mass is below a predetermined minimum weighing value. In this case, it is not possible to guarantee the accuracy of raw material weighing in the weighing hopper 15.

  For example, it is assumed that the minimum measured values of the resin pellets, the pulverized material, the master batch, and the additive in the weighing hopper 15 are 500 g, 100 g, 20 g, and 15 g, respectively. Further, the mass of the raw material supplied from the weighing hopper 15 to the mixing unit 19 in one batch operation is 3000 g, and the blending ratio of the resin pellet, pulverized material, master batch and additive is resin pellet: pulverized material: master batch: added It is assumed that agent = 66: 30: 3: 1. In this case, in a normal one-batch operation, 1980 g of resin pellets, 900 g of pulverized material, 90 g of master batch and 30 g of additive are supplied from the weighing hopper 15 to the mixing unit 19. Assuming that the mass of the raw material to be supplied from the weighing hopper 15 to the mixing unit 19 in the final batch operation is 100 g, 66 g of resin pellets, 30 g of pulverized material, 3 g of The master batch and 1 g of additive must be weighed by the weighing hopper 15, and the weighing accuracy of each raw material cannot be guaranteed.

  Therefore, a plurality of batch operations before the operation of the feeding device 1 and the molding machine 2 are stopped are adjusted batch operations so that the mass of each raw material supplied to the weighing hopper 15 in each adjusted batch operation does not fall below the minimum measured value. Adjusted to

  For example, a three-batch operation including the final batch operation is set as the adjustment batch operation. Under the above assumption, the total mass of resin pellets, pulverized material, master batch and additives to be supplied from the weighing hopper 15 to the mixing unit 19 in the adjustment batch operation is 4026 g, 1830 g, 183 g and 61 g, respectively. Therefore, the total mass of the resin pellets, pulverized material, master batch and additives to be supplied from the weighing hopper 15 to the mixing unit 19 in each adjustment batch operation is divided by 3 (one third). To 1342 g, 610 g, 61 g and 20 g (1 batch operation only, 21 g), respectively. Thereby, the measurement precision of each raw material in the measurement hopper 15 can be guaranteed.

  Further, when the increase button 34 or the decrease button 35 displayed on the operation panel 31 is pressed while the adjustment stop function is on (in use), the remaining supply set by the remaining supply amount setting unit 44 at that time is set. The amount is corrected. For example, if the number of resin molded products to be manufactured by the molding machine 2 is increased by 50 before the supply device 1 and the molding machine 2 are stopped by pressing the increase button 34, the manufacture of 50 resin molded products is performed. The remaining supply amount is increased by the mass of the raw material necessary for the production. Then, the operations of the supply device 1 and the molding machine 2 are stopped based on the corrected remaining supply amount. However, after the final batch operation is started, the increase button 34 or the decrease button 35 is invalidated.

  4 and 5 are flowcharts of the adjustment stop function.

  When the adjustment stop button 33 on the operation panel 31 is pressed during the operation of the supply device 1 and the molding machine 2, the adjustment stop process shown in FIGS. 4 and 5 is executed.

  In the following adjustment stop process, an example in which the adjustment stop is executed in the final three batch operations will be described.

  When the adjustment stop process is executed, it is determined whether or not there is a batch weighing request to the weighing hopper 15 (step S71).

  When the batch weighing request is not input, such as when the raw material remains in the weighing hopper 15 or when the raw material is being supplied from the weighing hopper 15 to the mixing unit 19, the next batch weighing request is input. In the meantime, the determination as to whether or not there is a batch weighing request is repeatedly executed (NO in step S71).

  When a batch weighing request is input (YES in step S71), the remaining supply amount setting unit 44 is referred to and supplied from the supply device 1 to the molding machine 2 until the operations of the supply device 1 and the molding machine 2 are stopped. The remaining supply to be done is examined.

  Then, it is determined whether or not the remaining supply amount is not more than three times the one batch amount (S72). The value of one batch amount is stored in advance in the RAM of the control unit 41, and 3000 g is set as a default value, for example.

  When it is determined that the remaining supply amount is more than three times the one batch amount (NO in step S72), one batch amount of raw material is supplied to the weighing hopper 15, and the batch operation described above is executed (step S73). ).

  This batch operation is repeatedly executed until there is a batch weighing request and the remaining supply amount becomes three times or less of the one batch amount. That is, even if the adjustment stop button 33 is pressed during the operation of the supply device 1 and the molding machine 2, the batch operation is performed based on the normal one batch amount until the remaining supply amount becomes three times or less the one batch amount. Executed.

  When it is determined that the remaining supply amount is three times or less of the one batch amount (YES in step S72), the control unit 41 sets the value obtained by dividing the remaining supply amount by 3 as a new one batch amount. (Step S74).

  Next, one batch of raw material is supplied to the weighing hopper 15 based on the new one batch, and the batch operation described above is executed (step S75).

  Thereafter, it is determined whether or not the adjustment stop process is continued (step S76). This determination is made, for example, by whether the automatic operation button 32 of the operation panel 31 is pressed for a long time (for example, 2 seconds or more) from the previous batch operation until the process is executed, and the adjustment stop process is released. It is executed depending on whether or not.

  When the adjustment stop process is released (NO in step S76), the value of one batch amount stored in the RAM of the control unit 41 is returned to the default value (step S77).

  Thereafter, automatic operation is started based on the default batch amount (step S78).

  When the adjustment stop process is continued (YES in step S76), it is determined whether or not the next batch weighing request is input (step S79), and the adjustment is performed until the next batch weighing request is input. The determination as to whether or not the stop process is continued and the determination as to whether or not there is a batch weighing request are repeatedly executed (NO in step S71).

  When a batch weighing request is input (YES in step S79), the fine adjustment amount is added to the remaining supply amount, and the value divided by 2 is stored in the RAM of the control unit as a new one batch amount. (Step S80).

  The fine adjustment amount is, for example, an amount obtained by converting the number of molded products that are judged as defective among the molded products molded in the previous batch operation into weight, and from the previous batch operation to the processing. In the meantime, conversion is performed based on the quantity set by pressing the increase button 34 and the decrease button 35 of the operation panel 31.

  Next, based on the new one batch amount, one batch amount of raw material is supplied to the weighing hopper 15, and the above-described batch operation is executed (step S81).

  Thereafter, it is determined whether or not the adjustment stop process is continued (step S82). This determination is made, for example, by whether the automatic operation button 32 of the operation panel 31 is pressed for a long time (for example, 2 seconds or more) from the previous batch operation until the process is executed, and the adjustment stop process is released. It is executed depending on whether or not.

  When the adjustment stop process is canceled (NO in step S82), the value of one batch amount stored in the RAM of the control unit 41 is returned to the default value (step S83).

  Thereafter, automatic operation is started based on the default value of one batch (step S84).

  When the adjustment stop process is continued (YES in step S82), it is determined whether or not the next batch weighing request is input (step S85), and the adjustment is performed until the next batch weighing request is input. The determination as to whether or not the stop process is continued and the determination as to whether or not there is a batch weighing request are repeatedly executed (NO in step S85).

  When a batch weighing request is input (YES in step S85), a value obtained by adding the fine adjustment amount to the remaining supply amount is stored as a new batch amount in the RAM of the control unit (step S86).

  The fine adjustment amount is, for example, an amount obtained by converting the number of molded products that are judged as defective among the molded products molded in the previous batch operation into weight, and from the previous batch operation to the processing. In the meantime, conversion is performed based on the quantity set by pressing the increase button 34 and the decrease button 35 of the operation panel 31.

  Next, one batch of raw material is supplied to the weighing hopper 15 based on the new one batch, and the batch operation described above is executed (step S87).

  Thereafter, it is determined whether or not the raw materials in the mixing unit 19 and the molding machine hopper 27 have been used up (step S88). That is, it is determined whether all the raw materials in the mixing unit 19 are supplied to the molding machine hopper 27 and all the raw materials in the molding machine hopper 27 are used for molding by the molding machine 2. This determination may be made, for example, by determining that the raw material has been used up by allowing the processing to wait until the time until the default one batch of raw material has been used for molding has elapsed. A level sensor for detecting the raw material may be provided in the mixing unit 19 and the molding machine hopper 27, and it may be determined that the raw material has been used up by inputting an empty detection signal from the level sensor.

  When the raw material in the mixing unit 19 and the molding machine hopper 27 is in use (NO in step S88), the adjustment stop process canceling operation is accepted until the raw material is used up (step S88). S89).

  When the adjustment stop process is canceled before the raw materials in the mixing unit 19 and the molding machine hopper 27 are used up (NO in step S89), the amount of one batch stored in the RAM of the control unit 41 is reached. The value is returned to the default value (step S90).

  Thereafter, automatic operation is started based on the default value of one batch (step S91).

  On the other hand, if the adjustment stop process is not canceled (YES in step S89) and the raw materials in the mixing unit 19 and the molding machine hopper 27 are used up (YES in step S88), the adjustment stop process is completed, and the supply device 1 and the molding machine 2 are stopped.

  In the above description of the adjustment stop processing, the processing in which the raw materials in the mixing unit 19 and the molding machine hopper 27 are used up by the final three batch operations is taken as an example, but two or four or more counted from the final batch. An adjustment stop process in which the raw material is used up in a plurality of batch operations may be employed. In this case, the number of batch operations (adjustment batch operations) in which the adjustment stop process is executed is set so as to guarantee the measurement accuracy of each raw material supplied to the weighing hopper 15.

  As described above, the raw material of the resin molded product manufactured by the molding machine 2 is supplied from the raw material hopper 3 to the weighing hopper 15. The raw material supplied to the weighing hopper 15 is transported to the molding machine 2 by pneumatic transportation via the mixing unit 19 and the supply pipe 26.

  The supply apparatus 1 has an adjustment stop function. When the adjustment stop function is turned on, the mixing unit 19, the supply pipe 26, the supply pipe 26, the raw material storage amount in the molding machine hopper 27, and the product weight set by the operation of the operation panel 31 are used. 26 and the molding machine hopper 27, so that the operation of the feeding device 1 and the molding machine 2 is stopped at the stop timing displayed on the operation panel 31 when the adjustment stop function is turned on without leaving the remaining amount in the molding machine hopper 27. In addition, a remaining supply amount that is the amount of the raw material to be supplied to the molding machine 2 after being turned on is set. Then, the operation of the supply device 1 is stopped based on the set remaining supply amount.

  Thereby, it can prevent that a raw material remains in the mixing unit 19, the supply piping 26, and the molding machine hopper 27 after the operation | movement of the supply apparatus 1 stops. In other words, the operation of the supply device 1 can be stopped in a state where the raw materials stored in the mixing unit 19, the supply pipe 26, and the molding machine hopper 27 are used up. Therefore, it is possible to eliminate waste due to the raw material remaining in the mixing unit 19, the supply pipe 26 and the molding machine hopper 27. As a result, the raw material cost required for manufacturing the resin molded product can be reduced.

  In addition, a plurality of batch operations before the operation of the supply device 1 and the molding machine 2 are stopped as adjustment batch operations, so that the mass of each raw material supplied to the weighing hopper 15 in each adjustment batch operation is adjusted so as not to fall below the minimum measurement value. Is done.

  Thereby, the mass of each raw material can be accurately measured in each batch operation.

  Furthermore, during the use of the adjustment stop function, the number of resin molded products to be manufactured by the molding machine 2 before the supply device 1 and the molding machine 2 are stopped can be changed. For example, after the adjustment stop function is turned on, if the number of resin molded products manufactured in the molding machine 2 is excessive or insufficient, the number of resin molded products manufactured in the molding machine 2 is set so as to eliminate the excess or shortage. Can be changed.

  When the number of resin molded products manufactured in the molding machine 2 is changed, the remaining supply amount is corrected based on the changed condition, and the operations of the supply device 1 and the molding machine 2 are performed based on the corrected remaining supply amount. Is stopped.

  Thereby, even if the number of resin molded products manufactured in the molding machine 2 is changed, the operation of the supply device 1 and the molding machine 2 can be stopped in a state where the raw material stored in the weighing hopper 15 is used up. .

  While one embodiment of the present invention has been described above, the present invention can be implemented in other forms.

  FIG. 6 is a diagram illustrating a second example of the screen of the operation panel.

  Various types of information relating to the operation of the supply device 1 are displayed on the operation panel 71 shown in FIG. On the operation panel 71, for example, the amount of raw material stored in the mixing unit 19, the supply pipe 26 and the molding machine hopper 27 at the present time is displayed.

  Further, the operation panel 71 can set the blending ratio of the resin pellets, the pulverized material, the master batch and the additive on a screen different from the screen shown in FIG.

  The operation panel 71 displays an automatic operation button 72, an automatic operation stop button 73, and an adjustment stop button 74 for setting the automatic operation function and the adjustment stop function. When the automatic operation button is pressed, the automatic operation function is turned on. When the automatic operation stop button 73 is pressed, the automatic operation function is turned off. Further, when the adjustment stop button 74 is pressed after the automatic operation button 72 is pressed, the adjustment stop function is turned on. The adjustment stop function can be released (turned off) by long-pressing the automatic operation button 72 (for example, pressing and holding for 2 seconds or more).

  Further, the operation panel 71 has a current time, an automatic stop time that is predicted to stop the operation of the supply device 1 and the molding machine 2 when the automatic operation function is on, and an adjustment stop function. An adjustment stop time, which is a time when the operation of the supply device 1 and the molding machine 2 is stopped, is displayed.

  The adjustment stop time can be set on a screen different from the screen shown in FIG. When the adjustment stop time is set, the operation of the supply device 1 and the molding machine 2 is stopped at that time, and the adjustment stop process is executed so that no raw material remains.

  Specifically, when the adjustment stop time is set, the weight of the raw material that can be formed between the current time and the adjustment stop time is calculated. In other words, the adjustment stop time is converted into the remaining supply amount of the raw material (see FIGS. 4 and 5). Thereby, when the adjustment stop time is set, the adjustment stop process shown in FIGS. 4 and 5 is executed.

  In the supply apparatus 1 employing such an operation panel 71, the supply stop apparatus 1 and the molding machine 2 can be reliably stopped at the adjustment stop time by setting the adjustment stop time in advance. Therefore, the operation time of the supply device 1 and the molding machine 2 can be easily managed.

  FIG. 7 is a diagram illustrating a third example of the screen of the operation panel.

  The operation panel 81 shown in FIG. 7 displays the number of automatic stops and the number of adjustment stops instead of the current time, automatic stop time, and adjustment stop time displayed on the operation panel 71 shown in FIG.

  The number of automatic stops is the number of molded products produced by the supply device 1 and the molding machine 2 when the automatic operation function is on.

  The number of adjustment stops is the number produced by the supply device 1 and the molding machine when the adjustment stop function is on.

  The number of adjustment stops can be set on a screen different from the screen shown in FIG. When the number of adjustment stops is set, the operation of the supply device 1 and the molding machine 2 is stopped and the adjustment stop process is executed so that no raw material remains when moldings are formed by that number.

  Specifically, when the adjustment stop number is set, the weight of the raw material necessary to form the number is calculated. In other words, the number of adjustment stops is converted into the remaining supply amount of raw materials (see FIGS. 4 and 5). Thus, when the number of adjustment stops is set, the adjustment stop process shown in FIGS. 4 and 5 is executed.

  In the supply device 1 employing such an operation panel 81, the number of adjustment stops is set in advance, so that the supply device 1 and the molding machine 2 can be securely connected when the number of adjustment stops is produced (molded). Can be stopped. Therefore, a desired number of molded products can be reliably molded.

  In the above embodiment, as shown in FIGS. 2, 6, and 7, the adjustment stop process is executed according to either the number of boxed molded products, the time, or the number of molded products. May be set based on weight.

  For example, when the adjustment stop weight is displayed on the operation panel 31 (71, 81) and it is desired to mold a molded product by a specified weight during operation of the supply device 1 and the molding machine 2, the adjustment stop weight is displayed. Set. Thereby, the operation | movement of the supply apparatus 1 and the molding machine 2 can be stopped in the stage in which only the part for the set adjustment stop weight was shape | molded. Therefore, a molded product having a desired weight can be reliably molded.

  FIG. 8 is a flowchart of the pulverized material adjustment process.

  In order to adjust the target amount of the pulverized material in the raw material supplied from the supply device 1 to the molding machine 2 according to the remaining amount of the pulverized material in the raw material hopper 3, the drive control unit 46 performs the pulverization shown in FIG. Material adjustment processing may be executed.

  When supply of the pulverized material from the raw material hopper 3 containing the pulverized material to the weighing hopper 15 is started, the mass of the pulverized material supplied to the weighing hopper 15 is measured by the load cell 18 (step S1: pulverized material measurement). start).

  Further, simultaneously with the start of the supply of the pulverized material from the raw material hopper 3 to the weighing hopper 15, a timer built in the control unit 41 is started (step S2).

  Thereafter, it is checked whether a target amount of pulverized material has been supplied to the weighing hopper 15. That is, it is checked whether or not the weighing of the pulverized material in the weighing hopper 15 is completed (step S3). Immediately after the operation of the supply device 1 is started, an amount corresponding to the blending ratio set from the operation panel 31 is set as the target amount of the pulverized material.

  Subsequently, the timer is referred to, and it is checked whether or not a fixed time has elapsed (time up) from the start of the supply of the pulverized material (step S4).

  Until the measurement of the pulverized material is completed or until a certain period of time is measured by the timer, it is determined whether or not the measurement of the pulverized material is completed and whether or not the fixed time is measured by the timer. Repeatedly.

  When a sufficient amount of pulverized material is stored in the raw material hopper 3, a target amount of pulverized material is supplied from the raw material hopper 3 to the weighing hopper 15 in a relatively short time. Before being measured, the measurement of the pulverized material is completed (YES in step S3). In this case, the target amount of pulverized material in the next batch operation is set to a slightly larger amount (multiple blending amount) than the amount of pulverized material generated in the molding machine 2 from the raw material supplied in one batch operation (step S5). ), The pulverized material adjustment process ends.

  On the other hand, if the storage amount of the pulverized material in the raw material hopper 3 is small, it takes time for the target amount of pulverized material to be supplied from the raw material hopper 3 to the weighing hopper 15, and before the measurement of the pulverized material is completed, the timer The predetermined time is measured by (NO in step S3). In this case, the target amount of pulverized material in the next batch operation is set to a slightly smaller amount (small blending amount) than the amount of pulverized material generated in the molding machine 2 from the raw material supplied in one batch operation ( Step S6), the pulverized material adjustment process ends.

  Thus, when the storage amount of the pulverized material in the raw material hopper 3 is large, the target amount of the pulverized material is set to the multiple blending amount. Therefore, the storage amount of the pulverized material in the raw material hopper 3 decreases as the subsequent batch operation is repeated. When the storage amount of the pulverized material in the raw material hopper 3 is reduced to a certain extent, the target amount of the pulverized material is set to a small blending amount. Therefore, as the batch operation is repeated thereafter, the pulverized material in the raw material hopper 3 is set. The amount of storage increases.

  As a result, while the amount of pulverized material stored in the raw material hopper 3 can be kept as small as possible, a pulverized material of a small amount or more is blended in the raw material supplied from the supply device 1 to the molding machine 2. be able to.

  When the resin molded product manufactured by the molding machine 2 is changed, the raw material to be supplied to the molding machine 2 is changed accordingly. Cleaning the raw material hopper 3 for storing the pulverized material is necessary when the raw material is changed in order to prevent the pulverized material generated during the production of the resin molded product before the change from being mixed with the raw material of the resin molded product after the change. It becomes. At this time, if the amount of pulverized material stored in the raw material hopper 3 is small, the time and labor required for cleaning the raw material hopper 3 can be reduced.

  Further, when a case where a pulverized material is mixed with a raw material and a case where a pulverized material is not mixed are generated, uneven quality such as a difference in color occurs. Since the raw material supplied to the molding machine 2 is always blended with a pulverized material of a small blending amount or more, occurrence of such quality unevenness can be prevented.

  As shown in FIG. 1, the raw material hopper 3 in which the pulverized material is stored includes a full level sensor 51 for detecting that the level of the pulverized material in the raw material hopper 3 has reached a predetermined full level, and a raw material An abnormal level sensor 52 is provided for detecting that the level of the pulverized material in the hopper 3 has reached an abnormal level higher than the full level. When the level of the pulverized material in the raw material hopper 3 reaches the full level, the transportation of the pulverized material from the pulverized material container 30 to the raw material hopper 3 is stopped. Therefore, the upper part of the raw material hopper 3 is always empty. Therefore, after the operation of the molding machine 2 is stopped, the pulverized material stored in the pulverized material container 30 can be collected in the raw material hopper 3.

  9 and 10 are flowcharts of the automatic cleaning process.

  The supply device 1 may have a function of automatically cleaning the inside of the weighing hopper 15 and the mixing unit 19 after the operation is stopped. In the case of having this function, as shown in FIG. 3, a cleaning air nozzle 61 and a dust collection blower 62 are connected to the drive control unit 46 as control targets. As shown in FIG. 1, the cleaning air nozzle 61 is provided on the upper portion of the weighing hopper 15 and the mixer 20 so that air can be blown into the weighing hopper 15 and the mixer 20, respectively. And after the operation | movement of the supply apparatus 1 stops, the automatic cleaning process shown by FIG.

  Referring to FIG. 9, in the automatic cleaning process, it is first determined whether or not the automatic cleaning function is turned on (step S11). On / off of the automatic cleaning function can be set from the operation panel 31.

  If the automatic cleaning function is turned on (YES in step S11), the shutter valve 23 is opened (step S12). Further, the gate shutter 17 is opened (step S13). Thereby, the inside of the measurement hopper 15 and the inside of the mixing unit 19 (in the mixer 20, the supply hopper 21 and the connecting pipe 22) communicate.

  Further, the dust collection blower 62 is activated (step S14).

  Then, air is blown from the cleaning air nozzle 61 provided on the weighing hopper 15 to the inner surface of the weighing hopper 15 (step S15: weighing hopper air blow). Thereby, the raw material adhering to the inner surface of the weighing hopper 15 flows into the mixing unit 19 (mixer 20) together with the air. This air blow is performed for 5 seconds, for example.

  Subsequently, air is blown into the mixer 20 from the cleaning air nozzle 61 provided in the mixer 20 (step S16: mixer air blow). Thereby, the raw material in the mixer 20 flows into the supply hopper 21 through the connection pipe 22. This air blow is performed for 5 seconds, for example.

  Air blowing into the weighing hopper 15 and the mixer 20 is repeated three times. As a result, the raw materials adhering in the weighing hopper 15, the mixer 20 and the connecting pipe 22 are collected in the supply hopper 21. In addition, since the dust recovery blower 62 is driven, the raw material that has risen in the weighing hopper 15 and the mixer 20 by the air blow is sucked into the dust recovery blower 62 and recovered.

  When the air blow into the weighing hopper 15 and the mixer 20 is repeated three times (YES in step S17), the driving of the dust collection blower 62 is stopped (step S18). Further, the gate shutter 17 is closed (step S19), and the shutter valve 23 is closed (step S20).

  Then, the raw materials collected in the supply hopper 21 are sent to the molding machine 2 (step S21).

  Thereafter, it is determined whether or not the mixing ratio of the raw materials to be supplied to the molding machine 2 is changed (step S22).

  When the blending ratio is changed (YES in step S22), as shown in FIG. 10, the target amount of each raw material is set based on the blending ratio after the change (step S23).

  Then, the operation of mixing the target amounts of raw materials by the weighing hopper 15 and the mixing unit 19 is resumed (step S24: resumption of the weighing and mixing operation), and the mixed raw materials are stored in the supply hopper 21. .

  The raw material stored in the supply hopper 21 is not immediately transported to the molding machine 2, and the transportation is waited until the raw material in the molding machine hopper 27 provided in the molding machine 2 runs out (step S25: initial batch). Waiting for transportation of molding machine).

  When the raw material is exhausted from the molding machine hopper 27 (YES in step S26), the raw material stored in the supply hopper 21 is transported to the molding machine hopper 27 (step S27: initial batch molding machine transport). Thereafter, the batch operation is repeated, and the raw material is supplied from the supply device 1 to the molding machine 2 for each batch operation (step S28). Then, the automatic cleaning process ends.

  On the other hand, when the blending ratio is not changed (NO in step S22), as shown in FIG. 9, it is repeatedly checked whether or not there are no raw materials in the molding machine hopper 27 (step S29). When the raw material runs out of the molding machine hopper 27 (YES in step S29), the operation of the molding machine 2 is stopped (step S30), and the automatic cleaning process ends.

  Further, when the automatic cleaning function is turned off (NO in step S1), when the raw material runs out of the molding machine hopper 27 (YES in step S29), the operation of the molding machine 2 is stopped (step S30). The automatic cleaning process ends.

  Thus, since the inside of the measurement hopper 15 and the mixing unit 19 is automatically cleaned before the mixing ratio of the raw materials is changed, it is possible to prevent the raw materials before the change from being mixed with the raw materials after the changing of the mixing ratio. . Therefore, a high-quality resin molded product can be manufactured using the raw material after the blending ratio is changed.

  In addition, since the raw material does not remain in the weighing hopper 15 and the mixing unit 19 when the operation of the supply device 1 is stopped by the adjustment stop function, the weighing hopper is cleaned prior to cleaning the weighing hopper 15 and the mixing unit 19. 15 and the mixing unit 19 need not be discharged. Therefore, after the operation of the supply device 1 is stopped, cleaning inside the weighing hopper 15 and the mixing unit 19 can be started immediately. As a result, the time required from the stop of the operation of the supply device 1 to the restart of the operation can be shortened.

  Note that the blower 6 may be used as the dust collection blower 62 during the automatic cleaning. For example, an attachment plate having a connection port is attached so as to cover the upper opening of the weighing hopper 15, and the connection port is connected to the blower 6 via a suction pipe, and the blower 6 is driven, whereby the inside of the weighing hopper 15 For example, the raw material soared may be collected through the connection port. Of course, the blower 6 and the encouragement recovery blower 62 may be provided separately.

  FIG. 11 is a diagram illustrating a configuration in which a plurality of molding machines are connected to one supply device.

  As shown in FIG. 11, two or more molding machines 2 may be connected to one supply device 1.

  In the molding system shown in FIG. 11, one end of a supply pipe 26 is connected to the lower end of the supply hopper 21. The supply pipe 26 branches in the middle, and each other end is connected to two molding machine hoppers 27.

  On the other hand, an intake line 28 extending from the blower 6 is connected to each molding machine hopper 27. An intake valve 29 is interposed in the middle of each intake line 28.

  12, 13, and 14 are flowcharts showing the flow of the supply operation in a configuration in which a plurality of molding machines are connected to one supply device.

  In a configuration in which two or more molding machines 2 are connected to one supply device 1, for example, when the adjustment stop function for one molding machine 2 is turned on, the supply of the raw material to each molding machine 2 is as shown in FIG. It is executed according to the flowcharts shown in 12 to 14.

  Referring to FIG. 12, first, the remaining use amount in the molding machine (hereinafter referred to as “adjustment stop request molding machine”) 2 stopped by the adjustment stop function, that is, set by the remaining supply amount setting unit 44 shown in FIG. One third of the remaining supply amount is weighed in the weighing hopper 15 (step S41).

  Next, it is checked whether or not there are two (two) or more molding machines 2 in operation among the plurality of molding machines 2 (step S42).

  When the number of molding machines 2 that are in operation is only one of the adjustment stop request molding machines 2 (NO in step S42), the adjustment stop operation described with reference to FIG. 3 (when the adjustment stop function is turned on) Operation) is performed (step S43), and the operation of the supply device 1 is stopped.

  When there are two or more molding machines 2 in operation (YES in step S42), the storage amount in the supply device 1 at that time (the mixing unit 19, the supply pipe 26, and the molding machine hopper 27 are stored). It is determined whether or not the mass of the raw material) is the amount for two batch operations (step S44).

When the storage amount is an amount for two batch operations (YES in step S44), it is checked whether or not there are three (three) or more molding machines 2 in operation (step S45).
If there are three or more molding machines 2 in operation (YES in step S45), the two molding machines in operation other than the adjustment stop request molding machine 2 from the supply device 1 (hereinafter referred to as "molding machine without stop request"). 2) Each batch of raw material is forcibly transported to 2 (step S46).

  If there are two molding machines 2 in operation (NO in step S45), one batch of raw material is forcibly transported from the supply device 1 to the adjustment stop request molding machine 2 and the stop requestless molding machine 2, respectively. (Step S47).

  When the storage amount in the supply device 1 is not the amount for two batch operations (NO in step S44), it is determined whether or not the storage amount is for one batch operation (step S48).

  When the storage amount is the amount for one batch operation (YES in step S48), the batch raw material is forcibly transported from the supply device 1 to the molding machine 2 without a stop request (step S49).

  On the other hand, when the storage amount is not the amount for one batch operation (NO in step S48), the forcible transportation of the raw material from the supply device 1 to the molding machine 2 is not performed.

  Thereafter, it is monitored whether or not there is a request for transport (supply) of the raw material from the molding machine 2 without a stop request (step S50). Further, it is monitored whether or not there is a request for transportation of the raw material from the stop request molding machine 2 (step S51).

  If there is a request for transportation of the raw material from the molding machine 2 without a stop request before the request for transportation of the raw material from the stop request molding machine 2 is made (NO in step S50), the remaining supply amount measured before The 1/3 amount of raw material is transported to the molding machine 2 without a stop request (step S52). Then, 1/3 of the remaining supply amount is again weighed in the weighing hopper 15 (step S53).

  When a request for transportation of the raw material is issued from the stop request molding machine 2 (YES in step S51), as shown in FIG. 13, the amount of the raw material that is 1/3 of the remaining supply amount previously measured is requested to stop. It is transported to the molding machine 2 (step S54). Then, 1/3 of the remaining supply amount is again weighed in the weighing hopper 15 (step S55).

  Thereafter, it is monitored again whether or not there is a request for transportation (supply) of the raw material from the molding machine 2 without a stop request (step S56). Moreover, it is monitored again whether there is a request | requirement of the conveyance of a raw material from the stop request | requirement molding machine 2 (step S57).

  If there is a request for transportation of the raw material from the molding machine 2 without a stop request before the request for transportation of the raw material from the stop request molding machine 2 is made (NO in step S56), the remaining supply amount measured before The 1/3 amount of raw material is transported to the molding machine 2 without a stop request (step S58). Then, 1/3 of the remaining supply amount is again weighed in the weighing hopper 15 (step S59).

  When a request for transportation of the raw material is issued from the stop request molding machine 2 (YES in step S57), the raw material in an amount of 1/3 of the remaining supply amount previously measured is transported to the stop request molding machine 2 ( Step S60). Then, 1/3 of the remaining supply amount is again weighed in the weighing hopper 15 (step S61).

  Thereafter, as shown in FIG. 14, it is monitored again whether or not there is a request for transport (supply) of the raw material from the molding machine 2 without a stop request (step S62). Further, it is monitored again whether or not there is a request for the transportation of the raw material from the stop request molding machine 2 (step S63).

  If there is a request for transportation of the raw material from the molding machine 2 without a stop request before the request for transportation of the raw material from the stop request molding machine 2 (NO in step S62), the remaining supply amount that has been measured before The 1/3 amount of raw material is transported to the molding machine 2 without a stop request (step S64). Then, 1/3 of the remaining supply amount is again weighed in the weighing hopper 15 (step S65).

  When a request for transportation of the raw material is issued from the stop request molding machine 2 (YES in step S63), the raw material of an amount of 1/3 of the remaining supply amount that has been previously measured is transported to the stop request molding machine 2 ( Step S66). As a result, supply of the remaining amount of raw material to the stop request molding machine 2 is achieved.

  Thereafter, in the supply apparatus 1, a normal batch operation (normal automatic operation) for supplying the raw material to the molding machine 2 without a stop request is resumed (step S67).

  When the raw material in the molding machine hopper 27 of the stop request molding machine 2 runs out (YES in step S68), the operation of the stop request molding machine 2 is stopped (step S69).

  As described above, even in a configuration in which two or more molding machines 2 are connected to one supply device 1, an adjustment stop function for one or a plurality of stop request molding machines 2 can be used, and molding without a stop request is performed. The supply of the raw material to the machine 2 is not hindered, and the remaining supply amount of the raw material can be supplied from the supply device 1 to the stop request molding machine 2 without excess or deficiency.

  In addition, the raw material in an amount obtained by adding a predetermined remaining amount to the remaining supply amount may be supplied from the supply device 1 to the molding machine 2 by the adjustment stop function. That is, the supply device 1 does not supply the remaining supply amount of raw material to the molding machine 2 without excess or deficiency, but after the operation of the supply device 1 stops, a predetermined remaining amount of raw material is intentionally stored in the molding machine hopper 27. The raw material in a slightly larger amount than the remaining supply amount may be supplied from the supply device 1 to the molding machine 2 so as to remain. Even in this case, since the raw material does not remain in the mixing unit 19 and the supply pipe 26 of the supply device 1, automatic cleaning of the weighing hopper 15 and the mixing unit 19 can be performed.

  The operation panel 31 may display a time until the operation of the molding machine 2 is stopped by the adjustment stop function (a time until the end of production).

  The supply device 1 and the molding machine 2 may be operated without connecting the supply device 1 and the molding machine 2 with a signal line. In this case, since the signal indicating the operation state of the molding machine 2 is not input to the control unit 41 of the supply apparatus 1, the storage amount calculation unit 42 assumes that the molding machine 2 is operating normally, and the mixing unit 42 performs mixing. The storage amount that is the mass of the raw material stored in the unit 19, the supply pipe 26 and the molding machine hopper 27 may be calculated.

  In addition, various design changes can be made within the scope of matters described in the claims.

1 Supplying device 2 Molding machine (processing machine)
3 Raw material hopper (supplying means, ground material storage means)
6 Blower (Transport)
15 Weighing hopper (supply means)
19 Mixing unit (storage means)
20 Mixer (storage means)
21 Supply hopper (storage means)
22 Connection pipe (storage means)
26 Supply piping (storage means)
27 Molding machine hopper (storage means)
28 Intake line (transportation)
29 Intake valve (transportation)
32 Automatic operation button (stop condition setting means)
33 Adjustment stop button (stop condition setting means)
34 Increase button (condition change means)
35 Decrease button (condition change means)
41 control part 42 storage amount calculating part (storage amount detection means)
44 Residual supply amount setting unit (residual supply amount setting means, supply amount adjustment means, correction means)
46 Drive control unit (stop control means, blending change means)
61 Air nozzle for cleaning (cleaning means)
62 Dust recovery blower (cleaning means)
72 Automatic operation button (stop condition setting means)
74 Adjustment stop button (stop condition setting means)

Claims (7)

Transportation means for transporting the raw material of the processed product to a processing machine for manufacturing the processed product;
Storage means for temporarily storing the raw material transported to the processing machine by the transport means;
A supply unit that measures the mass of the raw material, supplies the measured raw material to the storage unit, and repeats the batch operation with one measurement and the supply of the measured raw material as one batch operation;
A storage amount detection means for detecting the amount of raw material stored in the storage means;
Stop condition setting means for setting a condition for stopping production of a processed product in the processing machine;
The accumulation amount detected by the storage amount detecting means and on the basis of the amounts of raw materials used in the manufacture of pressurized pyrotechnic in machine, the set by the stopping condition setting unit condition is satisfied, and the reservoir A remaining supply amount setting means for setting a remaining supply amount that is an amount of the raw material to be supplied to the processing machine after setting the condition by the stop condition setting means so that no raw material remains in the means;
Based on the remaining supply amount set by the remaining supply amount setting means, stop control means for stopping the operation of the transportation means and the supply means,
Supply amount adjustment for adjusting the supply amount of the raw material supplied from the supply means to the storage means in a plurality of batch operations before the production of the processed product in the processing machine is stopped so that no raw material remains in the storage means Means for supplying.   The supply amount adjusting means is such that each individual supply amount, which is the mass of the raw material supplied to the storage means in each batch operation of a plurality of batch operations, is not less than the minimum measurement value that can be measured by the supply means. The supply device according to claim 1, wherein an individual supply amount in each batch operation is adjusted. Condition setting means for changing the condition after setting the condition by the stop condition setting means;
Correction means for substantially correcting the remaining supply amount calculated by the remaining supply amount setting means based on the condition after the change by the condition changing means;
The supply device according to claim 1 or 2, wherein the stop control means stops the operation of the transport means and the supply means based on the remaining supply amount corrected by the correction means. A plurality of the transportation means are provided corresponding to a plurality of the processing machines,
The stop condition setting means sets a condition for stopping production of a processed product for each of the processing machines,
The remaining supply amount setting means is configured so that each condition set by the stop condition setting means is satisfied, and each processing is performed after each condition is set by the stop condition setting means so that no raw material remains in the storage means. Calculate the remaining supply, which is the amount of raw material to be supplied to the machine,
The said stop control means stops operation | movement of each said transport means and the said supply means based on the residual supply amount computed for every said processing machine by the said residual supply amount setting means. The supply device according to claim 1.   The supply device according to claim 1, further comprising a cleaning unit that cleans the storage unit after the transportation unit and the supply unit are stopped. The supply means supplies the storage means with raw materials formed by blending a plurality of types of powder particles,
The supply device according to claim 5, wherein a mixing ratio of the granular material is changed before and after cleaning by the cleaning unit. The supply means supplies the storage means with a raw material formed by blending a plurality of types of granular materials including a pulverized material,
Pulverized material storage means for storing the pulverized material;
A pulverized material amount detecting means for detecting the amount of pulverized material contained in the pulverized material containing means;
The composition changing means according to any one of claims 1 to 6, further comprising: a blending change means for changing a blending amount of the pulverized material in the raw material according to an amount of the pulverized material detected by the pulverizer amount detecting means. Feeding device.

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