JP2020067263A - Branding device, confectionery manufacturing device, and smoke exhaustion method - Google Patents

Abstract

To provide a branding device, a confectionery manufacturing device, and a smoke exhaustion method that can execute air exhaustion efficiently by removing impurities contained in smoke generated from a processing object when executing branding to the processing object by laser processing.SOLUTION: A confectionery manufacturing device 1 is composed mainly of a laser processing device 2, a dust collector 61, and a pressure-feed part 64. The pressure-feed part 64 discharges a cleaning fluid stored in a first storage tank 641a inside the dust collector 61 through a pressure-feed pipe 641b periodically. The inside of the dust collector 61 is cleaned by the discharged cleaning fluid, and the cleaning fluid is discharged to a second storage tank 642a through a discharge part 646 after impurities adhering to the inside of the dust collector 61 are removed. Thus, the impurities adhering to the inside of the dust collector 61 are removed and an operational failure of the dust collector 61 can be prevented.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a branding device, a confectionery manufacturing device, and a smoke exhaust method. Specifically, when performing branding by laser processing on an object to be processed, a branding device, a confectionery manufacturing device, and a smoke exhaust method capable of removing impurities contained in smoke generated from the object to be efficiently exhausted. It is related to.

  BACKGROUND ART Conventionally, for the purpose of improving the added value of a product or improving the distinctiveness, various brand seals may be imprinted on the surface of foods including confectioneries such as steamed buns, cookies and castella. Such branding has been done manually using a trowel.

  However, in the case of manually pushing the branding, the position of the branding to be stamped is not always constant, and it is necessary to abut the trowel with an appropriate pressing amount for the food product to be processed, If the amount of pressing is too large, the peripheral part of the target area to be imprinted will be browned, which will cause damage or deformation of the food, and the appearance will not be good. Further, in the case of manual work, there is a problem that productivity is low due to a low processing speed.

  Therefore, a branding device that automatically imprints a branding on the surface of food has been proposed. For example, in Patent Document 1, the position of the food placed on the conveyor device is automatically detected, and when the food comes to a fixed position, the stamp surface of the roasting iron is automatically brought into contact with the food. A branding device having a function is disclosed.

  Specifically, a conveyor that conveys food is provided, and above the conveyor, a presser positioning portion for fixing the food that is the object of imprinting of the brand is vertically movable. Further, a branding stamping unit having a photoelectric detector for detecting the positions of the roasting iron and the food is provided at a position above the conveyor and adjacent to the presser positioning unit. Then, when the food conveyed by the belt conveyor is detected by the photoelectric detector, the presser positioning unit lowers and fixes the food, and the baking iron automatically moves up and down to fix the food fixed by the presser positioning unit. It is configured to imprint a branding mark.

  In addition, Patent Document 2 discloses a branding device that controls up and down according to a pressure change due to air ejected from a nozzle when a roasting iron comes into contact with food. Specifically, the bottom of the roasting iron has a minute nozzle capable of ejecting air and a pressure sensor, and the roasting iron descends onto the food while ejecting air from the minute nozzle, and the stamping surface of the roasting iron Is instructed to return to the ascending state of the roasting iron according to the pressure change when it comes into contact with food. That is, since the roasting iron is controlled to move up and down based on the pressure change, it is possible to prevent the food from being deformed or damaged at the time of branding without pressing the roasting iron against the food with an unnecessarily high pressure. Has become.

  Further, in recent years, as disclosed in Patent Document 3, for example, a branding device using a laser beam has been proposed in place of the conventional branding with a hot iron. This laser beam can be scanned at a high speed, and can increase the processing speed compared to the branding with a trowel, and since it does not directly press the device against the food, it does not affect the food to be processed during the branding. It is possible to prevent deformation and damage and realize more accurate branding. In addition, although it is necessary to prepare in advance a plurality of baking irons corresponding to the pattern of the baking iron, when the laser beam is used, it is possible to easily change the pattern of the ironing iron.

JP-A 1-117741 Japanese Utility Model Publication No. 6-16095 JP, 2006-204189, A

  By the way, as disclosed in Patent Document 3, when a high temperature laser beam is applied to a processing object at a high speed, a large amount of smoke is generated from the processing object. Therefore, it is necessary to constantly drive the ventilation equipment, such as collecting smoke generated during processing with a dust collector and discharging the smoke to the outside through the range hood.

  Here, for example, when a confectionery containing a large amount of sugar is irradiated with a laser beam as an object to be processed, the sugar contained in the confectionery is evaporated by the heat of the laser beam. At this time, the generated smoke contains a large amount of evaporated sugar. When smoke containing a large amount of sugar is directly sucked by the dust collector, the sugar contained in the smoke adheres to each part such as a cyclone and a suction fan in the dust collector, causing a failure of the dust collector. Therefore, it is necessary to disassemble the dust collector and frequently clean the sugar adhering to the inside of the dust collector, resulting in a heavy work load.

  The present invention was devised in view of the above points, when performing the branding by laser processing on the object to be processed, remove the impurities contained in the smoke generated from the object to be efficiently exhausted. An object of the present invention is to provide an obtained branding device, a confectionery manufacturing device, and a smoke exhaust method.

  In order to achieve the above-mentioned object, the branding device of the present invention includes a laser processing device that emits a laser beam to a processing object and an intake duct that sucks smoke containing impurities generated from the processing object. A suction port, a dust collector having an exhaust port communicating with an exhaust duct for filtering the smoke sucked from the suction port and discharging purified smoke to the outside, and a pressure feed for pumping the cleaning liquid into the dust collector. And a discharge unit for discharging the cleaning liquid pumped into the dust collector to the outside.

  Here, by providing a laser processing device that emits a laser beam to the object to be processed, it is possible to form a branding mark at a predetermined position on the object to be processed by the laser beam. Further, by storing patterns of a plurality of branding marks in the laser processing device, a plurality of branding marks can be formed by one device.

  In addition, an intake port was connected to which an intake duct for sucking smoke containing impurities generated from the object to be processed was connected, and an exhaust duct was connected to discharge smoke that was cleaned by filtering the smoke sucked from the intake port to the outside. By providing the dust collector having the exhaust port, the smoke containing the impurities generated in the process of forming the branding mark on the object to be processed can be cleaned and discharged to the outside without being filled.

  In addition, by providing a pumping unit that pumps the cleaning liquid into the dust collector and a discharge unit that discharges the pumped cleaning liquid from the dust collector to the outside, the impurities adhering to the inside of the dust collector can be washed away and the dust collector can be prevented from malfunctioning. You can Specifically, the smoke sucked by the dust collector contains a large amount of highly viscous impurities (such as sugar). If these high impurities of clay are repeatedly deposited in the dust collector, it may affect the operation of the dust collector, and the original function may not be exhibited. Therefore, the cleaning liquid supply / discharge device periodically pressurizes the cleaning liquid into the dust collector to wash away the impurities adhering to the inside of the dust collector and discharge the impurities, thereby preventing malfunction of the dust collector.

  The pumping unit includes a first storage tank that stores the cleaning liquid, a pumping pipe that connects the dust collector and the first storage tank, a suction port, and a discharge port, and a pump provided in the middle of the pumping unit. In the case of the above, the cleaning liquid stored in the first storage tank can be pumped up by the pump and pumped into the dust collector through the pumping pipe. Therefore, the cleaning liquid can be pressure-fed into the dust collector and the inside of the dust collector can be cleaned without manual work by the operator.

  Moreover, when the discharge part has a second storage tank for storing the cleaning liquid discharged from the inside of the dust collector and an exhaust pipe connecting the dust collector and the second storage tank to each other, the discharge portion contains impurities for cleaning the inside of the dust collector. The cleaning liquid can be promptly discharged from the dust collector to the outside without staying in the dust collector.

  Further, when the pumping unit intermittently pumps a predetermined amount of cleaning liquid at a predetermined time interval from the start of driving the dust collector, the cleaning liquid is regularly pumped into the dust collector, so that impurities adhering to the dust collector are removed. Can be washed off regularly.

  Further, when the discharge amount of the cleaning liquid per unit time is changed according to the hardness of the object to be processed, the pumping unit discharges the object according to the amount of impurities contained in the smoke generated from the object to be processed. The amount of cleaning liquid is changed.

  For example, in the case of buns or sponge-type cakes having a relatively low hardness as the object to be processed, the volume range irradiated by the laser irradiation becomes wide, and thus the generated smoke contains a large amount of sugar. Therefore, a large amount of sugar is attached to the inside of the dust collector, and a large amount of cleaning liquid is required for cleaning.

  Also, in the case of cookies with relatively high hardness as the processing object, the volume range irradiated by laser irradiation is not so wide, so the amount of sugar content contained in the generated smoke is larger than that of buns. Is less. Therefore, the sugar adhering to the inside of the dust collector can be washed with a small amount of washing liquid.

  In order to achieve the above-mentioned object, the confectionery manufacturing apparatus of the present invention is a non-contact belt conveyor that places and conveys a workpiece on an endless belt, and detects the position of the workpiece on the endless belt. A sensor, a laser processing device located above the belt conveyor, which emits a laser beam to the processing object whose position is detected by the non-contact sensor, and smoke containing impurities generated from the processing object. An intake port connected to an intake duct for suction, a dust collector formed with an exhaust port connected to an exhaust duct for filtering the smoke sucked from the intake port and discharging purified smoke to the outside, and a cleaning liquid A cleaning liquid supply / discharge device having a pressure-feeding unit that pressure-feeds the dust collector and a discharge unit that discharges the cleaning liquid pressure-fed to the outside of the dust collector.

  Here, by providing a belt conveyer for mounting and conveying the processing target object on the endless belt, the processing target object can be mounted on the endless belt and moved according to the manufacturing process.

  Further, by providing a non-contact sensor for detecting the position of the object to be processed on the endless belt, the position of the object to be processed on the endless belt can be grasped. It is possible to reliably irradiate the object with the laser.

  Further, by being equipped with a laser processing device which is located above the belt conveyor and emits a laser beam to the processing object whose position has been detected by the non-contact sensor, the laser beam causes a branding to a predetermined position of the processing object. Can be formed. Further, by storing patterns of a plurality of branding marks in the laser processing device, a plurality of branding marks can be formed by one device.

  In addition, an intake port was connected to which an intake duct for sucking smoke containing impurities generated from the object to be processed was connected, and an exhaust duct was connected to discharge smoke that was cleaned by filtering the smoke sucked from the intake port to the outside. By providing the dust collector having the exhaust port, the smoke containing the impurities generated in the process of forming the branding mark on the object to be processed can be cleaned and discharged to the outside without being filled.

  In addition, by providing a pumping unit that pumps the cleaning liquid to the inside of the dust collector and a discharge unit that discharges the cleaning liquid that has been pumped to the outside of the dust collector, the impurities adhering to the inside of the dust collector can be washed away and problems with the dust collector can be prevented. can do. Specifically, the smoke sucked by the dust collector contains a large amount of highly viscous impurities (such as sugar). If these high impurities of clay are repeatedly deposited in the dust collector, it may affect the operation of the dust collector, and the original function may not be exhibited. Therefore, such a malfunction can be prevented in advance by periodically pumping the cleaning liquid into the dust collector by the cleaning liquid supply / discharge device to wash away the impurities adhering to the inside of the dust collector.

  Further, when the non-contact sensor is a photoelectric sensor composed of a light emitter and a light receiver which are symmetrically positioned at right angles to the conveying direction of the endless belt and are arranged opposite to the side edge of the endless belt, With such a configuration, it is possible to reliably recognize the position of the processing target object that is being conveyed on the endless belt.

  In addition, when it has a diffused reflection prevention wall part that extends upward from the belt conveyor and continuously surrounds the four sides of the laser processing device, it prevents the laser beam emitted from the laser processing device from being diffusely reflected to the surroundings. In addition, it is possible to prevent the smoke containing the impurities generated from the object to be processed due to the laser irradiation from spreading to the surroundings.

  In order to achieve the above-mentioned object, the smoke exhaust method of the present invention comprises a step of detecting the position of an object to be processed placed on an endless belt, and a laser beam is emitted to the surface of the object to be branded. A step of forming, a step of sucking smoke containing impurities generated by the emission of the laser beam into a dust collector through an air intake duct, a step of pumping a predetermined amount of cleaning liquid into the dust collector, and a pumping into the dust collector. The method includes the steps of discharging the cleaning liquid to the outside of the dust collector and collecting it, and discharging the clean smoke obtained by filtering impurities contained in the smoke by the dust collector to the outside from an exhaust duct.

  Here, by providing the step of detecting the position of the object to be processed placed on the endless belt, the position of the object to be processed on the endless belt can be grasped. As described above, it is possible to surely form the marking by the laser beam.

  Further, by providing a step of sucking the smoke containing impurities generated by the emission of the laser beam to the dust collector via the air intake duct, it is possible to prevent the smoke containing impurities generated during the formation of the brand mark on the object to be filled in the room. Can be prevented.

  Further, by providing a step of pumping a predetermined amount of cleaning liquid into the dust collector, it is possible to wash away the impurities adhering to the inside of the dust collector with the cleaning liquid when smoke is sucked. Therefore, malfunction of the dust collector due to impurities can be prevented in advance.

  Further, by providing a step of discharging the cleaning liquid pumped into the dust collector to the outside of the dust collector and collecting the cleaning liquid, impurities in the dust collector can be washed away, and the cleaning liquid containing impurities can be quickly discharged to the outside. Therefore, it is possible to prevent the malfunction of the dust collector due to the accumulation of the cleaning liquid containing impurities in the dust collector.

  Further, by providing a step of discharging clean smoke obtained by filtering impurities contained in smoke with a dust collector to the outside from the exhaust duct, the smoke containing impurities generated during the formation of the brand can be cleaned and discharged to the outside. .

  A branding device, a confectionery manufacturing device, and a smoke exhaust method according to the present invention, when performing branding by laser processing on an object to be processed, remove impurities contained in smoke generated from the object to be efficiently exhausted. be able to.

It is a whole block diagram of the confectionery manufacturing apparatus which concerns on embodiment of this invention. It is a top view of the confectionery manufacturing apparatus which concerns on embodiment of this invention. It is a figure which shows the dust collector used in embodiment of this invention. It is a flowchart which shows the smoke exhausting method in the confectionery manufacturing apparatus which concerns on embodiment of this invention.

  Hereinafter, embodiments of the present invention relating to a branding device, a confectionery manufacturing device, and a smoke exhausting method will be described with reference to the drawings to provide an understanding of the present invention.

  First, a confectionery manufacturing apparatus 1 according to an embodiment of the present invention will be described based on FIGS. 1 and 2. The confectionery manufacturing apparatus 1 includes a laser processing device 2 for irradiating a laser beam to form a branding mark on the surface of the confectionery S, a belt conveyor 3 on which the confectionery S that is an object to be processed is placed and conveyed according to a manufacturing process, and a belt. A pair of non-contact sensors 4 installed so as to face each other in the lateral direction of the conveyor 3, anti-diffuse reflection walls 5 for preventing diffused reflection of laser light due to laser irradiation by the laser processing device 2, smoke generated during formation of a branding mark. It is mainly composed of a ventilation device 6 for sucking in and discharging it to the outside. The confectionery manufacturing apparatus 1 including the laser processing apparatus 2 and the ventilation apparatus 6 is referred to as a branding apparatus 7.

  The laser processing device 2 has a well-known structure, and includes a laser oscillator for oscillating a laser beam and a light condensing unit for converging the laser beam generated from the laser beam and irradiating the object to be processed. It has been structured in a way. As the type of laser light, for example, a fiber laser is used.

  The laser processing device 2 is above the belt conveyor 3 and corresponds to each row so that the confectionery S conveyed in four rows on the belt conveyor 3 can be irradiated with a laser beam. Two are installed.

  Here, it is not always necessary to use a fiber laser as the type of laser light. A known laser such as a CO 2 laser or a YAG laser can be appropriately selected according to the type of the object to be processed.

  Further, it is not always necessary to install two laser processing devices 2. The number of laser processing devices 2 to be installed can be appropriately changed according to the number of the confectionery S which is a processing target conveyed on the belt conveyor 3.

  The belt conveyor 3 is mainly an endless belt 31 that is an endless rotating body having a predetermined width dimension and is a ring-shaped endless member, and a drive pulley 32 and a driven pulley 33 around which the endless belt 31 is wound and spaced from each other. And a drive motor (not shown) that applies a rotational force in the transport direction to the drive pulley 32. When the drive motor is driven, the drive pulley 32 continuously rotates, and the confectionery S placed on the upper surface of the endless belt 31 is transported in the transport direction.

  The non-contact sensor 4 is composed of, for example, a transmissive photoelectric sensor, and a light projector 41 that projects a laser or infrared rays and a light receiver 42 that receives the projected laser or infrared rays face each other in the width direction of the belt conveyor 3. The position of the confectionery S is detected by passing the confectionery S, which is installed and conveyed by the belt conveyor 3, between the light projector 41 and the light receiver 42 to block the light reception of the light receiver 42.

  Further, the non-contact sensor 4 is installed in association with the position of the laser beam emitted from the laser processing device 2, and the non-contact sensor 4 and the laser processing device 2 are configured to work in a wired or wireless manner. That is, when the position of the confectionery S is detected by the non-contact sensor 4, the detection signal is input to the laser processing device 2, and the laser processing device 2 that receives the input emits a laser beam toward the confectionery S. , The burn mark is surely formed on the surface of the confectionery S.

  Here, it is not always necessary to use a photoelectric sensor as the non-contact sensor 4. It is only necessary to be able to detect the position of the confectionery S conveyed by the belt conveyor 3, and it is possible to appropriately select from known sensors.

  The diffused reflection preventing wall 5 has a base portion standing vertically above the floor surface F on which the confectionery manufacturing apparatus 1 is installed, and at a height position where the laser processing apparatus 2 is installed, the laser processing apparatus 2 is installed from a position above the belt conveyor 3. It is composed of an acrylic plate that covers the surrounding area.

  Here, the irregular reflection preventing wall 5 does not necessarily have to be provided. However, since the irregular reflection preventing wall 5 can prevent the irregular reflection of the laser beam applied to the object to be processed, it is preferable to include the irregular reflection preventing wall 5 from the viewpoint of safety. . Further, since the diffused reflection preventing wall 5 can prevent the smoke generated from the object to be processed due to the laser irradiation from spreading to the surroundings, the ventilation of the smoke by the ventilation device 6 described later can be performed more efficiently.

  The ventilation device 6 includes a dust collector 61 for cleaning smoke, an intake duct 62 that sucks smoke generated from an object to be processed due to laser irradiation and leads to the dust collector 61, and smoke that has been cleaned in the dust collector 61 to the outside. An exhaust duct 63 for guiding, a cleaning liquid supplying / discharging device 64 for supplying the cleaning liquid into the dust collector 61 and discharging the supplied cleaning liquid to the outside, and a ventilation hood 65 for discharging the smoke guided from the exhaust duct 63 to the outside of the factory. Has been done.

  As shown in FIG. 3, the dust collector 61 has an intake port 611 to which one end of the intake duct 62 is connected and an exhaust port 612 to which one end of the exhaust duct 63 is connected, and has an axis line in the vertical direction inside. It has an electric motor 613 and a suction fan 615 that rotates integrally with the electric motor 613 and the output shaft 614.

  The smoke containing the impurities sucked from the intake port 611 by the suction action accompanying the rotational movement of the suction fan 615 is centrifugally separated in the cyclone chamber 616 as a swirling air flow to remove the impurities contained in the smoke and remove the impurities. The smoke thus generated is discharged from the exhaust port 612.

  The cleaning liquid feeding / discharging device 64 is for cleaning and cleaning impurities adhering to the cyclone chamber 616 of the dust collector 61, and discharging the cleaning liquid in the dust collector 61 to the outside by a pressure feeding unit 641 for pumping the cleaning liquid into the dust collector 61. It is composed of a discharge section 642 for. The pressure feeding unit 641 is disposed in the middle of the first storage tank 641a for storing the cleaning liquid, the pressure feeding pipe 641b for connecting the first storage tank 641a and the dust collector 61, and the first pressure feeding pipe 641b. It is composed of a pump 641c for pumping the cleaning liquid from the storage tank 641a and pumping it into the dust collector 61.

  The discharge part 642 is mainly configured by a second storage tank 642a for storing the cleaning liquid discharged from the dust collector 61, and a discharge pipe 642b connecting the dust collector 61 and the second storage tank 642a.

  The suction pipe 641b is connected to the suction port (not shown) of the pump 641c, the first storage tank 641a, the discharge port (not shown) of the pump 641c and the dust collector 61, and the cleaning liquid pumped up by the pump 641c is It is pressure-fed into the dust collector 61 from the discharge port of 641c.

  Here, the impurities contained in the smoke include, for example, sugar contained in the confectionery S which is the object to be processed. That is, as the confectionery S, for example, when the surface of buns or sponge cakes containing a large amount of sugar or a surface of a cookie or the like is irradiated with a laser beam to form a branding mark, it is included in these confectionery S along with the laser irradiation. The sugar content is evaporated and contained in the smoke.

  When the smoke containing the sugar is sucked into the dust collector 61, the sugar contained in the smoke is centrifugally separated by the centrifugal action in the cyclone chamber 616 as described above. At this time, the centrifuged sugar content is attached to the inside of the dust collector 61 including the cyclone chamber 616. Then, by repeatedly using the dust collector 61, the sugar content attached to the inside of the dust collector 61 continues to increase, and eventually the attached sugar content causes a malfunction of the dust collector 61. Therefore, a cleaning liquid supply / discharge device 64 is provided for cleaning the sugar adhering to the inside of the dust collector 61.

  Next, the operation of the cleaning liquid supply / discharge device 64 will be described. A certain amount of cleaning liquid is stored in the first storage tank 641a, and the pump 641c is driven at predetermined time intervals to pump the cleaning liquid stored in the first storage tank 641a into the dust collector 61. It is configured to be pumped. At this time, the drive of the pump 641c is interlocked with, for example, the dust collector 61, and approximately 2 liters of cleaning liquid is pressure-fed into the dust collector 61 every hour after the driving of the dust collector 61 is started.

  That is, the pump 641c has a timer device (not shown) built therein, and starts time counting from the start of driving the dust collector 61, and the pump 641c starts driving at the timing when one hour has passed. The pump 641c pumps approximately 50 ml of the cleaning liquid as one discharge amount and pumps it into the dust collector 61. Therefore, when pumping 2 liters of the cleaning liquid, it is continuously driven about 40 times.

  During the pressure feeding into the dust collector 61, the cleaning liquid is sprayed from the tip of the pressure feeding pipe 641b so that the cleaning liquid is evenly distributed in the cyclone chamber 616 of the dust collector 61. The cleaning liquid sprayed into the dust collector 61 flushes the sugar content adhering to the inside of the cyclone chamber 616, and is dropped on the bottom of the cyclone chamber 616. The cleaning liquid containing impurities dropped on the bottom of the cyclone chamber 616 passes through the discharge pipe 642b and is drained to the second storage tank 642a.

  Here, the pump 641c and the dust collector 61 do not necessarily need to be linked. The pump 641c may be manually driven after the dust collector 61 is started to be driven.

  Further, the pump 641c does not necessarily need to be controlled so as to pump approximately 2 liters of cleaning liquid into the dust collector 61 every hour after the start of driving the dust collector 61. The drive interval of the pump 641c and the amount of the cleaning liquid to be pumped can be appropriately changed according to the hardness of the confectionery S which is the object to be processed.

  For example, in the case of buns or sponge-type cakes having a relatively low hardness as the confectionery S which is the object to be processed, the volume range irradiated by the laser irradiation is widened, so that a large amount of sugar is contained in the generated smoke. Is included. Therefore, a large amount of sugar is attached to the inside of the dust collector 61, so that the drive interval of the pump 641c is narrowed so that as much cleaning liquid as possible is pumped into the dust collector 61.

  On the other hand, in the case of cookies having a relatively high hardness as the confectionery S, since the volume range irradiated by laser irradiation is not so wide, the amount of sugar contained in the generated smoke is larger than that of buns. Is less. Therefore, not much sugar is attached to the inside of the dust collector 61, so that the drive interval of the pump 641c is extended to control the use of the cleaning liquid.

  Further, the drive of the pump 641c does not necessarily have to be performed at a predetermined time interval after the drive of the dust collector 61 is started. When the driving of the dust collector 61 is started, the pump 641c may be continuously driven so that a small amount of cleaning liquid is continuously pumped into the dust collector 61.

  As described above, the control of the pump 641c can be appropriately changed according to the capacity and specifications of the pump 641c to be used, the type of the object to be processed for forming the branding, and the like.

  Next, the operation of the confectionery manufacturing apparatus 1 according to the embodiment of the present invention will be described based on the flowchart of FIG.

[Step 1: Drive determination of laser processing device]
First, when the driving of the confectionery manufacturing apparatus 1 is started, it is determined whether or not the laser processing apparatus 2 has started the irradiation of the laser beam on the surface of the confectionery S conveyed by the belt conveyor 3.

[Step 2: Drive the dust collector]
When it is determined in step 1 that the driving of the laser processing device 2 is started, the dust collector 61 is also driven in synchronization with it, and the smoke generated by the irradiation of the laser beam is sucked through the intake duct 62 and exhausted from the ventilation hood 65. To do.

  Here, the dust collector 61 may be automatically driven in accordance with the driving of the laser processing apparatus 2, or may be manually driven at the same timing as the driving of the laser processing apparatus 2. It may have been done.

[Step 3: Timing the dust collector operating time]
Next, the drive time from the start of driving the dust collector 61 is measured, and it is determined whether or not the dust collector 61 has been continuously driven for a predetermined time (for example, one hour).

  Here, it is not always necessary to measure the driving time of the dust collector 61. As described above, the drive start times of the dust collector 61 and the laser processing device 2 are substantially the same, so that the drive time of the laser processing device 2 may be measured instead of the drive time of the dust collector 61, for example.

[Step 4: Driving the cleaning liquid supply / discharge device]
When it is determined in step 3 that the continuous drive time of the dust collector 61 has reached one hour, the pressure feeding unit 64 is driven. Specifically, the pump 641c is driven, the cleaning liquid is pressure-fed from the first storage tank 641a, and continuously injected into the dust collector 61.

[Step 5: Measurement of injection amount of cleaning liquid]
When the driving of the pressure feeding unit 64 is started in step 4, the injection amount of the cleaning liquid from the start of driving is measured. Specifically, the injection amount per driving of the pump is predetermined, and the injection amount is estimated by measuring the number of times of driving the pump.

[Step 6: Stopping the cleaning liquid supply / discharge device]
When it is determined in step 5 that the amount of the cleaning liquid pressure-fed from the first storage tank 641a has reached the predetermined amount (for example, 2 liters) or more, the pump 641c is stopped.

[Step 7: Reset dust collector timer]
In step 6, when the driving of the pump 641c is stopped, the timer for measuring the driving time of the dust collector 61 is reset.

  As described above, the branding device, the confectionery manufacturing device, and the smoke exhausting method to which the present invention is applied are, when performing branding by laser processing on an object to be processed, efficiently removing impurities contained in smoke generated from the object to be processed. Exhaust can be performed.

1 Confectionery manufacturing device 2 Laser processing device 3 Belt conveyor 31 Endless belt 32 Drive pulley 33 Driven pulley 4 Non-contact sensor 41 Light projector 42 Light receiver 5 Diffuse reflection prevention wall 6 Ventilation device 61 Dust collector
611 air intake
612 exhaust port
613 electric motor
614 Output shaft
615 Suction fan
616 Cyclone chamber 62 Intake duct 63 Exhaust duct 64 Cleaning liquid supply / discharge device
641 pumping unit
641a First storage tank
641b pressure pipe
641c pump
642 discharge section
642a Second storage tank
642b Discharge pipe 65 Ventilation hood 7 Branding device S Confectionery F Floor surface

Claims (10)

A laser processing device that emits a laser beam to an object to be processed,
An intake port connected to an intake duct for sucking smoke containing impurities generated from the object to be processed, and an exhaust duct connected to the outside for discharging purified smoke obtained by filtering the smoke sucked from the intake port to the outside. A dust collector with an exhaust port formed,
A branding device comprising: a pumping unit that pumps the cleaning liquid into the dust collector; and a cleaning liquid supply / discharge device that has a discharging unit that discharges the cleaning liquid pumped into the dust collector to the outside. The pumping unit,
A first storage tank for storing the cleaning liquid;
A pressure feed pipe communicating the dust collector with the first storage tank;
A pump provided with a suction port and a discharge port and provided in the middle of the pressure feeding pipe;
The branding device according to claim 1. The discharge part is
A second storage tank for storing the cleaning liquid discharged from the inside of the dust collector;
The branding device according to claim 1 or 2, further comprising: a discharge pipe that communicates the dust collector and the second storage tank. The pumping unit,
The branding device according to any one of claims 1 to 3, wherein a predetermined amount of cleaning liquid is intermittently pressure-fed at a predetermined time interval from the start of driving the dust collector. The pumping unit,
The branding device according to any one of claims 1 to 3, wherein a predetermined amount of cleaning liquid is continuously pressure-fed from the start of driving the dust collector. The pumping unit,
The branding device according to any one of claims 1 to 5, wherein the discharge amount of the cleaning liquid per unit time is changed according to the hardness of the object to be processed. A belt conveyor that places and conveys an object to be processed on an endless belt,
A non-contact sensor for detecting the position of the processing object on the endless belt,
A laser processing device that is located above the belt conveyor and emits a laser beam to the processing object whose position is detected by the non-contact sensor.
An intake port connected to an intake duct for sucking smoke containing impurities generated from the object to be processed, and an exhaust duct connected to the outside for discharging purified smoke obtained by filtering the smoke sucked from the intake port to the outside. A dust collector with an exhaust port formed,
A confectionery manufacturing apparatus, comprising: a pumping unit that pumps the cleaning liquid into the dust collector, and a cleaning liquid supply / discharge device that has a discharging unit that discharges the cleaning liquid pumped into the dust collector to the outside. The non-contact sensor,
A photoelectric sensor including a light emitter and a light receiver, which are symmetrical positions in a direction perpendicular to the conveying direction of the endless belt, and which are arranged opposite to the side edges of the endless belt,
The confectionery manufacturing apparatus according to claim 7. The confectionery production apparatus according to claim 7 or 8, further comprising a diffused reflection preventing wall portion that extends upward from the belt conveyor and continuously surrounds four sides of the laser processing apparatus. A step of detecting the position of the processing object placed on the endless belt,
Emitting a laser beam on the surface of the object to be processed to form a branding mark;
A step of sucking smoke containing impurities generated by the emission of the laser beam to a dust collector through an intake duct;
Pumping a predetermined amount of cleaning liquid into the dust collector;
A step of discharging the cleaning liquid pumped into the dust collector to the outside of the dust collector and collecting the cleaning liquid;
Discharging the clean smoke obtained by filtering impurities contained in smoke by the dust collector to the outside from an exhaust duct.

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