JP3118050U - Belt-type roll ironer - Google Patents

Abstract

An object of the present invention is to reduce the amount of steam used in a belt-type roll ironer that irons the laundry after washing and dehydration to stretch the basket, thereby saving energy in the laundry factory.
The operation software installed in the operation control device of the ironer has an energy saving mode, and when the linen is not turned on by a changeover switch or for a certain period of time, the speed of the conveyor belt, and hence the cylinder peripheral speed, is increased. Set to 0 m / min or slow. When it is detected that the linen has not passed, the rotation of the cylinder and the conveyor belt is stopped or rotated at a slow speed. The ironer has a case where a person inserts linen and a case where an automatic insertion machine (feeder) is used. In the former case, press the switch to restart. In the latter case, the sensor is provided or restarted upon receiving a signal from the feeder.
[Selection] Figure 2

Description

  The present invention relates to a belt-type roll ironer for ironing a laundry after washing and dehydration to stretch the basket, and in particular, a belt-type roll ironer having an operation control device capable of reducing the amount of energy used. It is about.

  In a laundry factory where laundry, mainly linen, such as sheets, buffs, pillow covers, etc. used mainly in accommodation facilities such as hotels and hospitals, nursing care facilities, etc. is washed, ironers that stretch laundry after drying Is provided.

  A belt-type roll ironer (hereinafter, also simply referred to as “ironer”) widely used as a business ironer is a plurality of (usually 4-5) rotary heating cylinders that are heated with steam inside. These are constituted by a conveyor belt that is wound around these cylinders and rotates in synchronism with the cylinder while pressing the linen against the cylinder circumferential surface, and performs lathing and finishing drying of the washed linen.

  The ironer performs idling operation until steam reaches a predetermined temperature by putting steam into the heating cylinder at the start of work. A dryer is provided in front of the ironer. During operation, linen obtained by drying the dryer to a predetermined moisture content is continuously sent to the ironer. The linen that has been sent is unrolled by an operator and inserted into the ironer, or is spread by a feeder that supplies laundry to the ironer and inserted into the ironer.

  The laundry line is designed so that linen is washed and dried one after another, and this is continuously fed into the ironer, but in an actual laundry factory, the next linen flows from the previous process to the ironer. Until then, it usually happens that there is a gap. Generally, it is said that 20% to 30% of working hours can be idle.

  In a general washing line, even when idle time when no linen is put into the ironer is used, the cylinder and the conveyor belt of the ironer are usually kept on standby in many cases. The ironer is rotated at a conveying belt speed of 10 m / min to 45 m / min depending on the linen type.

  An object of the present invention is to save energy in a laundry factory by reducing the amount of steam used by an ironer installed in a commercial laundry line as described above.

  In this device, the operation software installed in the operation control device of the ironer has an energy saving mode, and when the linen is not turned on by a changeover switch or for a certain period of time, the speed of the conveyor belt, and hence the cylinder peripheral speed, is increased. The above problem is solved by setting the speed to 0 m / min or a fine speed. When it is detected that the linen has not passed, the rotation of the cylinder and the conveyor belt is stopped or rotated at a slow speed. The ironer has a case where a person inserts linen and a case where an automatic insertion machine (feeder) is used. In the former case, press the switch to restart. In the latter case, the sensor is provided or restarted upon receiving a signal from the feeder.

  The belt-type roll ironer according to claim 1 of the present application is an ironer having a structure in which an operator presses a restart switch to restart, and in the ironer 20 provided with the operation control device 32, the ironer is laundry. A detection sensor 44 for detecting the passage of the laundry is provided in the passage, and the operation control device receives a timer 46 that is reset by the laundry detection signal of the sensor and starts a time measuring operation, and a timer time-up signal. Pause devices 48 and 49 for stopping or slowing the heating cylinder 1 and the conveyor belt 4 of the ironer, a restart switch 45, and a stop for restarting the rotation of the heating cylinder and the conveyor belt when receiving a signal from the restart switch A belt-type roll ironer comprising release devices 47 and 49.

  The belt-type roll ironer according to claim 2 of the present application is an ironer having a structure that restarts in response to a sensor signal provided in the feeder. In the ironer 20 including the operation control device 32, the ironer Includes a detection sensor 44 for detecting the passage of the laundry in the laundry passage, and the operation control device is reset by the laundry detection signal of the sensor and starts a time measuring operation, and a time-up signal of the timer In response to this, the heating cylinder 1 and the conveyor belt 4 of the ironer are stopped or stopped at a low speed, the temporary stop devices 48 and 49, the input end 54 for receiving the laundry passage signal from the feeder 52, and the laundry passage signal at the input end. Stop release devices 47 and 49 for restarting the rotation of the heating cylinder and the conveyor belt when received. It is a door-type roll ironer.

  Furthermore, the steam consumption can be further reduced by using a small diameter cylinder having a diameter of 600 to 700 mm, preferably 600 to 650 mm, as the heating cylinder. In addition, the general cylinder diameter in the conventional ironer is 1000 mm. By setting the cylinder diameter in the above range, the apparatus can be made compact without deteriorating the drying performance. That is, if the cylinder diameter is made smaller than this, the number of cylinders for obtaining the necessary contact length between the cylinder peripheral surface and linen increases, and the machine becomes complicated. The cylinder diameter of 600 mm is a critical dimension that can reduce the steam consumption without increasing the number of cylinders.

  If the heating cylinder 1 and the conveyor belt 4 are stopped when the linen does not pass, the steam consumption of the heating cylinder 1 is considered to be because heat dissipation through the conveyor belt 4 is lost. When the conveyor belt 4 is rotated, it is repeatedly heated by the cylinder 1 and dissipated into the air. When the conveyor belt is stopped for a long time, a temperature difference is generated between the portion that is in contact with the heating cylinder 1 and the portion that is separated. When this becomes a problem, the heating cylinder and the conveyor belt are rotated at a low speed instead of being stopped. If the rotation of the conveyor belt is slowed down, heat dissipation through the conveyor belt is also reduced. Therefore, if the speed of the conveyor belt is made sufficiently small, the heat radiation amount can be made almost the same as in the stop state.

  The amount of steam consumed by the ironer varies depending on the speed of the conveyor belt 4. According to an experiment conducted by the inventors of this application, in the case of an idle operation in which the conveyor belt is rotated without supplying linen, the steam consumption is 110 kg per hour at a belt speed of 0 m / min and the belt speed is 20 m / min. The steam consumption at that time was 210 kg per hour, and when the rotation was stopped, the steam consumption was found to be about half.

  The effect of reducing the diameter of the heating cylinder 1 is 22% shorter than the conventional machine with a cylinder diameter of 1000 mm when the cylinder diameter is set to 650 mm and the temperature from the start of steam to the temperature at which it can be operated is increased. The steam consumption was reduced by 33%. Furthermore, the drying performance by arranging the cylinders so that both surfaces of the linen alternately contact the heating cylinder 1 was improved by 15% compared to the conventional machine.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a side view showing an ironer having six heating cylinders 1 (1a to 1f), in which 21 is an apparatus casing, 22 is a laundry (linen) inlet, and 23 is an outlet. The first cylinder 1a and the second cylinder 1b on the upstream side of the linen passage are positioned so that the first cylinder 1a is located on the back side as viewed from the linen loading port 22 side, and the second cylinder 1b is located on the near side lower side. The lower part of the 1st cylinder 1a and the upper part of the 2nd cylinder 1b are substantially the same height.

  The third cylinder 1c and the fourth cylinder 1d have a positional relationship similar to the positional relationship between the first cylinder and the second cylinder behind the pair of the first and second cylinders, that is, the third cylinder from the linen input port 22 side. 4th cylinder 1d is arrange | positioned at the back upper side seeing, and it has arrange | positioned so that the lower part of 3rd cylinder 1c and the upper part of 4th cylinder 1d may become substantially the same height. The arrangement of the fifth cylinder 1e and the sixth cylinder 1f provided behind the pair of the third cylinder and the fourth cylinder has the same positional relationship.

  All cylinders 1 have the same diameter, and are 650 mm diameter cylinders that are smaller than conventional 1000 mm diameter cylinders. Thereby, the installation floor area of the apparatus of FIG. 1 provided with six cylinders is substantially equal to that of the conventional apparatus in which four cylinders having a diameter of 1000 mm are arranged, and the machine height is low.

  Conveying belts 4a, 4c, and 4e of upper cylinders 1a, 1c, and 1e are respectively provided with inlet rollers 5a, 5c, and 5e that are located at the top of each cylinder and outlet rollers 6a, 6c, and 6e that are located at the bottom left of each cylinder. Between the outlet rollers 6a, 6c, and 6e and returned to the inlet rollers 5a, 5c, and 5e by being guided by a plurality of rollers (not shown) including the tension adjusting roller 24. Yes.

  Conveying belts 4b, 4d, and 4f of the lower cylinders 1b, 1d, and 1f are respectively disposed between inlet rollers 5b, 5d, and 5f positioned at the upper part of each cylinder and outlet rollers 6b, 6d, and 6f positioned at the lower right side. It is attached to the cylinder, and includes a tension adjusting roller 24 after it has risen obliquely from the outlet rollers 6b, 6d, 6f to a position facing the inlet rollers 5c, 5e of the next stage cylinder or to the linen outlet 23. It is returned to the entrance rollers 5b, 5d and 5f by a plurality of rollers.

  A press roll 9 is provided at the inlet of the first cylinder, and a tape 10 for preventing the linen from sticking is wound around the press roll 9. A second press roll 27 and a tape guide 28 are provided at the inlet of the second cylinder 1b, and a second tape 29 is wound between them.

  With the arrangement of the cylinder 1 and the conveyor belt 4 described above, the linen passing through the apparatus is conveyed so that both surfaces thereof alternately contact the cylinder. A sensor 30 for detecting linen is provided at the linen inlet to the first cylinder 1a.

  The ironer 20 having the above structure is provided with an operation control device 32 for controlling the operation thereof. The embodiment of FIG. 2 has a structure suitable for a case where an operator puts linen into an ironer. The operation control device 32 includes a restart switch 45, a timer 46, an operation speed setting device 47, and a stop speed setting device. 48 and a setting switch 49 are provided. The setting switch 49 switches to the stop speed setter 48 side when receiving a time-up signal from the timer 46, and switches to the operation speed setter 47 side when receiving a signal from the restart switch 45.

  In the stop speed setting unit 47, a speed of 0 m / min is set, or a minute speed close to 0 m / min is set. In the operation speed setting unit 47, a conveyance speed suitable for the type of laundry to be ironed is set. A typical conveying belt speed is 10 m / min to 45 m / min. Reference numeral 50 denotes an inverter for rotating a motor 51 for driving the cylinder of the ironer and the conveyor belt at a commanded set speed. The detection signal of the linen detection sensor 30a provided in the ironer is given to the timer 46, and the timer 46 is reset when receiving this detection signal and restarts the time measuring operation.

  In this embodiment, if the linen does not pass through the time ironer 20 set in the timer 46, the timer 46 is timed up and the heating cylinder 1 and the conveyor belt 4 are stopped. The steam supplied to the heating cylinder 1 is maintained in the supply state during normal operation. When the linen is sent from the previous process and the worker inserts it into the ironer, he presses the resume switch. By the signal from the restart switch 45, the rotation of the heating cylinder 1 and the rotation of the conveying belt 4 in the set operation state are restarted.

  FIG. 3 shows a preferred embodiment when a feeder is installed in front of the ironer. The ironer 20 is provided with a linen detection sensor 30a, and the feeder 52 is provided with a linen passage sensor 53, as in FIG. The operation control device 32 for the ironer is provided with a timer 46, an operation speed setting device 47, a stop speed setting device 48, a setting switch 49, and an inverter 50. Instead of the restart switch 45 in FIG. 2, an input terminal 54 that receives a linen passing signal from the feeder 52 is provided. The setting switch 49 switches to the stop speed setter 48 when receiving a time-up signal from the timer 46, and switches to the operation speed setter 47 when receiving a linen passage signal from the input terminal 54.

  As in the first embodiment, if the linen detection sensor 44 does not detect linen for a certain period of time, the timer 46 is timed up, and the heating cylinder 1 and the conveyor belt 4 of the ironer 20 are stopped or in a state of slow rotation. When the linen passage signal from the feeder 52 is received at the input end 54 in the stopped or slow rotation state, the heating cylinder 1 and the conveyor belt 4 resume rotation at the set operation speed.

  In the block diagrams of FIGS. 2 and 3, the timer 46, the setting units 47 and 48, the setting switching unit, etc. are shown as if they were hardware, but these are configured by software of the control computer. Is more practical.

  With the structure described above, in the ironer of the present invention, if the time linen set in the timer is not detected, the rotation of the conveyor belt 4 is stopped and wasteful heat dissipation from the heating cylinder 1 is prevented, and the steam consumption of the heating cylinder is prevented. The amount is reduced and energy can be saved.

Side view showing an example of ironer Block diagram of the first embodiment of the present invention Block diagram of the second embodiment of the present invention

Explanation of symbols

1 Heating cylinder 4 Conveyor belt
20 Ironer
32 Control unit
44 Detection sensor
45 Resume switch
46 Timer
48 Stop speed setting device
49 Setting selector
52 Feeder
54 Input terminal

Claims (2)

  In the belt-type roll ironer (20) provided with the operation control device (32), the ironer includes a detection sensor (44) for detecting the passage of the laundry in the laundry passage, and the operation control device includes the sensor of the sensor. A timer (46) that is reset by the laundry detection signal and starts timing operation, and a temporary stop that stops or slows down the heating cylinder (1) and the conveyor belt (4) of the ironer in response to a time-up signal of this timer Belt provided with a device (48, 49), a resumption switch (45), and a stop release device (47, 49) for resuming the rotation of the heating cylinder and the conveyor belt when receiving a signal of the resumption switch Formula roll ironer.   In the belt-type roll ironer (20) provided with the operation control device (32), the ironer includes a detection sensor (44) for detecting the passage of the laundry in the laundry passage, and the operation control device includes the sensor of the sensor. A timer (46) that is reset by the laundry detection signal and starts timing operation, and a temporary stop that stops or slows down the heating cylinder (1) and the conveyor belt (4) of the ironer in response to a time-up signal of this timer The device (48, 49), the input end (54) that receives the laundry passage signal from the feeder (52), and the rotation of the heating cylinder and the conveyor belt are resumed when the laundry passage signal is received at this input end. A belt-type roll ironer provided with a stop release device (47, 49) for performing.

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