JP6474553B2 - Laundry floor cleaning equipment - Google Patents

Description

  The present invention relates to an apparatus for automatically removing lint accumulated on the floor surface of a laundry factory, and relates to an apparatus for sucking and removing lint together with air.

  Laundry that contains some moisture after passing through the washing machine and dryer is finally dried by an ironer. During this drying, lint (fiber waste) adhering to the laundry is washed. Fall off and accumulate on the floor of the machine. If the accumulated lint rises again due to the wind blown from the surroundings and adheres to the machine or laundry, it may cause deterioration of the machine performance or the finished quality of the laundry, machine failure, etc. Also occurs.

  Therefore, it is necessary to periodically clean and remove the lint accumulated on the floor of the roll ironer and its downstream machine, but the large roll ironer has a depth and width of nearly 5 m, so It is difficult to clean manually from the inside to the inside of the machine. In addition, when lint is blown away with an air gun, the soaring lint is scattered in the air and floats, causing problems such as reattaching to the machine or deteriorating the environment of the entire factory. The removal work of lint accumulated on the surface was troublesome and troublesome.

  In the following description, lint accumulated on the floor surface is referred to as fluffing, and lint floating in the air is referred to as fluff.

  There are devices proposed in Patent Documents 1 and 2 for removing dust and falling cotton with air, and there are devices proposed in Patent Document 3 for removing dust and cotton with air. . The “room cleaning system” proposed in Patent Document 1 is provided with an air ejection nozzle at the lower part of the indoor wall or on the floor, and ejects the air so as to flow along the floor, and confronts the air ejection nozzle. The air on the floor is sucked into the suction hole by sucking the air flow ejected from the air ejection nozzle through the air suction hole provided in the lower part of the wall or on the floor.

  In Patent Document 1, it is proposed that the air ejection nozzles are arranged in rows of several horizontally long slits or one horizontally long slit in the entire wall length. There is a proposal for adjusting the angle of the injection direction by taking the shape. Furthermore, when a large room is cleaned with a small horsepower blower, intermittent operation can be performed using a pressure accumulator.

  Patent document 2 proposes a “waste cotton collecting and cleaning device for looms”, which accommodates the waste cotton in a pit provided on the floor of the loom to prevent scattering to the outside. In the cotton litter collection and cleaning device, which is structured to be removed by suction, the floor surface blowing nozzle that blows air toward the center lower surface of the machine base and the floor surface suction laid at the end of the pit on the opposite side of the machine base And a nozzle. The floor surface blow-off nozzle is connected to an outlet pipe of a traveling mechanism that travels along a rail mounted on the loom. On the other hand, the suction nozzle is formed with an opening having a hood over the entire length of the machine base.

  In addition, the “Falling cotton collection and cleaning method for loom groups” proposed in Patent Document 2 is to divide looms in a factory into groups arranged in series and to provide a cleaning device for each group.

  Patent Document 3 is an apparatus for removing fluff, and includes a traveling body capable of traveling on a rail constructed along a spinning machine base, a suction pipe and an air blowing pipe suspended from the traveling body, A “spinning machine moving cleaning device” is shown in which air is blown from a blow nozzle disposed in the middle of a blow pipe while traveling along a spinning machine stand, and the fluff is sucked and removed by a suction pipe.

  The moving cleaning device described in Patent Document 3 automatically performs a cleaning operation by repeatedly reciprocating along a spinning machine base during operation of the spinning machine.

JP 58-183128 A JP 9-31771 A JP 2000-96365 A

  It is conceivable to remove the falling cotton from the machine installation floor surface of the laundry factory with the apparatus proposed in Patent Documents 1 to 3 above. However, the methods and apparatuses described in these patent documents require a large amount of air for cleaning. In particular, since the suction side of the cleaning air is opened over the entire width of the region to be cleaned by the suction port, the amount of air to be sucked is large and the power consumption of the suction blower is large.

  A further problem is that there is a high risk that the cotton will flutter during cleaning. For example, in the invention described in Patent Document 2, a pit is provided on the floor of the machine, and a gap is formed between the machine and the falling cotton is collected in the pit. However, the blowing nozzle is higher than the floor. The air is jetted from the position toward the center of the machine, and there is a problem that the falling cotton in the pit is scattered as a fluff due to the air flow reflected from the floor surface.

  In the inventions described in Patent Documents 1 to 3, no consideration is given to the problem of causing fluff during cleaning. In a loom or spinning machine, the yarn is moving at high speed and the surrounding air is agitated, so that a large amount of fluff is scattered around the machine. The textile factory has an air washer that removes the fluff and humidifies the air in the factory. Therefore, in such factories, it is not considered to be a big problem even if there is no consideration for the occurrence of fluff.

  On the other hand, in the laundry factory, lint is removed from the dry laundry and falls onto the floor surface, resulting in cotton loss, so the amount of fluff floating in the air is much lower than in loom factories and spinning factories. Very few. When the method or apparatus described in Patent Documents 1 to 3 is used for cleaning the floor surface of a laundry factory, the fluff on the floor surface rises and adheres to the laundry, so that the quality of the laundry may be deteriorated. .

  An object of the present invention is to obtain a floor surface cleaning device that can remove the falling cotton deposited on the floor surface of the laundry factory without scattering it in the air. It is to obtain an apparatus capable of performing cleaning efficiently.

  In a machine in which a machine frame is directly mounted on a factory floor, a frame 9 (9, 9a, 9b) is attached to the frame 51 to create a gap between the frame 51 and the installation floor. A plurality of air ejection nozzles (hereinafter referred to as “main nozzles”) 1 (1a, 1b) that inject air substantially horizontally toward the other side opposite to one side of the region (cleaning region) A to be cleaned. A suction port 2 (2a, 2b) is provided for sucking the falling cotton that has been moved to the other side. When the cleaning area A is the installation floor surface of the machine, the air from the main nozzle 1 is ejected substantially horizontally toward the gap between the machine frame and the floor surface.

  The air flow that is ejected from the main nozzle 1 is a weak air flow that does not have the risk of raising the fallen cotton. If the weak airflow cannot convey the fallen cotton to the other side, the timing at which the fallen cotton has moved to some extent. Switch to a strong air flow.

  The fallen cotton in the cleaning area A is pushed and moved in an intertwined state without rising by a weak airflow that flows horizontally at a position slightly higher than the floor surface, and is gathered into a roll and rolled to the other side. Go and go. Once intertwined into a roll shape, even if the air flow is strengthened, it does not fly away from the roll, but is transported to the other side so as to roll while tangling the downstream cotton wool.

  A plurality of main nozzles 1 are arranged at equal intervals in a reciprocating direction on a reciprocating table 11 that reciprocates so that an air flow is injected over the entire width of the cleaning region A by the reciprocating movement of the reciprocating table 11. It is preferable to perform cleaning by repeating the reciprocating operation a plurality of times while ejecting air from the main nozzle 1.

  The suction port 2 facing the main nozzle 1 has a width that is narrower than the width of the cleaning area A, and an auxiliary nozzle 4 and a dust collection nozzle 3 that blow down cotton are provided on the suction port 2 side. Thereby, the floor surface can be efficiently cleaned with a small amount of air.

  When the distance from the main nozzle 1 to the suction port 2 is long and it is difficult to reliably convey the lint to the suction port 2 with only the main nozzle 1 provided on one side of the cleaning area, An auxiliary nozzle 4 and an urging nozzle 5 for injecting air toward the suction port 2 are provided at positions. If the auxiliary nozzle 4 and the urging nozzle 5 are provided so as to oscillate within a predetermined angle range, the lint on the side of the cleaning area may be blown toward the suction port 2 with a small number of nozzles. it can.

  Depending on the surface condition of the floor surface and the type of laundry to be treated, there is a difference in the lint movement state on the floor surface. Therefore, it is preferable that each nozzle is provided with a flow rate adjusting valve 7 (7a to 7f) so that the flow rate can be individually adjusted.

  When the air supply source of nozzles 1 and 3 to 5 is shared with equipment operating at other air pressures, the air pressure drops during cleaning work, resulting in problems with cleaning performance or adversely affecting the operation of other equipment. In order to avoid this, it is preferable to store air in the air tank 35 and supply the jet air from the air tank 35 to each nozzle. Furthermore, it is preferable to employ an operation control device that interrupts the cleaning operation when the air pressure drops below a specified value and continues the operation after the pressure is restored.

  In addition, since a difference occurs in the amount of lint generated due to differences in machine usage and processing amount, a timer is provided in the control device so that the cleaning interval can be freely set.

  According to the present invention, it is possible to provide an apparatus that can remove lint that has fallen or accumulated on the floor surface of a laundry factory with a small amount of air (amount of ejection and suction) without re-floating. In particular, there is an effect that an automatic cleaning device can be provided as a cleaning device for the floor surface of the ironer where lint falls from the dry laundry without causing the falling cotton to resurface and adhere to the machine or the laundry.

Schematic plan view showing an embodiment Top view showing nozzle swing mechanism Air circuit diagram of the device of FIG. Schematic plan view showing another embodiment

  Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 are views showing an example in which the floor surface of the roll ironer is cleaned by the floor surface cleaning device of the present invention. The roll ironer is a spreader installed in a washing line for linen products such as sheets and pillow covers used in hotels and hospitals, and is one of the washing machines with the largest lint deposit on the floor.

  FIG. 1 is a view of the installation floor surface of the roll ironer as viewed from above. The lower side of the figure is the front side, that is, the laundry insertion side, and the upper side is the rear side, that is, the laundry discharge side. Reference numeral 51 shown by an imaginary line in the figure is a frame of a roll ironer. The roll ironer is a machine that performs ironing by passing laundry between a plurality of heating cylinders and a conveyor belt, and the plurality of cylinders are rotationally driven with their ends supported by a frame 51. Therefore, the frame 51 has a sturdy structure with a side portion 51s that supports the heating cylinder and its driving mechanism.

  Conventionally, the roll ironer has been installed with the lower surface of the frame 51 placed directly on the floor of the factory. When the floor surface cleaning device of the present invention is provided, the roll ironer is installed in a state where the gantry 9 is provided under the frame 51 and a space of 5 to 10 cm is provided between the lower surface of the frame 51 and the installation floor surface. To do. In the example shown in the figure, since the laundry passes above the area between the gantry 9a, 9a and 9b, 9b, most of the lint dropped from the laundry falls into this area.

  On the front side of the installation floor surface A, a rail 12 in a direction orthogonal to the laundry feeding direction in the roll ironer is fixed to the frame girder 52 of the frame or the installation floor surface itself. An elongated nozzle unit 11 that reciprocates along is provided. The nozzle unit 11 is provided with a plurality of main nozzles 1 (1a, 1b) facing the other side of the installation floor A, that is, the rear side.

  In the example shown in the figure, two sets of eight main nozzles 1 each having flow rate adjusting valves 7a and 7b (FIG. 3) are provided as a set, and four sets are provided at equal intervals in the width direction, that is, the left-right direction in FIG. Yes. One main nozzle 1a of each group is a low speed (low pressure) nozzle whose flow rate is reduced by the flow rate adjusting valve 7a, and the other 1b is a high speed (high pressure) nozzle whose opening degree of the flow rate adjusting valve 7b is opened.

  The four low-speed nozzles 1a are connected to an air flow path that is opened and closed by one on-off valve 6a. Of the high-speed nozzles 1b, the two at the center are connected to an air flow path that is opened and closed by one open / close valve 6b, and the two at both ends are air flow paths that are opened and closed by another single open / close valve 6c. (See FIG. 3).

  On the other side of the installation floor surface A, that is, the rear side, a suction box 21 that is fixed directly to the frame girder 53 of the frame or the installation floor surface and elongated in the width direction is provided. The suction box 21 is divided by a partition wall 22 into a side 21b and a center 21a. A suction port 2a facing forward is opened at the center of the central suction box 21a, and an auxiliary suction port 2b is opened between the two mounts 9 on each side of each suction box 21b on both sides. doing.

  The suction box 21 is connected to the intake port of the exhaust blower 24 via a lint box 23 containing a filter for capturing lint. The lint box 23 is provided with three connection ports, the central suction box 21a is connected to the lint box 23 by two ducts 25a and 25a, and the suction boxes 21b and 21b on both sides are combined into one The duct 25b is connected to the lint box 23. Accordingly, a large amount of air is sucked from the central suction port 2a, and the amount of air sucked from the auxiliary suction port 2b is small.

  The main nozzle 1 blows out air over the entire width between the inner frames 9a and 9a as the nozzle unit 11 reciprocates. Therefore, in order to suck the lint conveyed by the air flow, a suction port that opens to the entire width between the inner frames 9b and 9b must be provided. However, when doing so, the amount of intake air increases and the power consumption of the exhaust blower 24 increases.

  Therefore, in the present invention, the suction port 2a is opened with a width that is narrower than the interval between the bases 9 on both sides thereof, lint that has fallen on both side portions As of the installation floor surface A is brought to the center, and the air flow from the main nozzle 1 is reduced. Auxiliary nozzle 4 (4a, 4b) that blows air toward the central suction port 2a so as to suppress diffusion, and a dust collection nozzle that collects lint to the central suction port 2a at a position immediately before the suction box 21 3 is provided. The auxiliary nozzle 4 is provided so as to reciprocate and swing within the swing range indicated by the arc arrow in the drawing so that the lint at the portion where the air flow is blocked by the frame base 9 can be removed.

  FIG. 2 is a plan view showing a swinging mechanism of the auxiliary nozzle 4 and the urging nozzle 5. The auxiliary nozzle 4 is attached to the tip of a seesaw lever 42 that is swingably supported by a fulcrum pin 41 in a direction orthogonal to the floor surface, and the other end of the lever includes an air cylinder 33 (33a, 33b, 33c). ) Rod 43 is connected. The air injection direction of the auxiliary nozzle 4 is 5 degrees downward with respect to the floor surface, and the swing range is about 65 to 75 degrees. 33a is a swing cylinder of the auxiliary nozzle 4a, 33b is a swing cylinder of the auxiliary nozzle 4b, and 33c is a swing cylinder of the biasing nozzle 5.

  A roll ironer having a large number of cylinders has a large installation floor area and a long interval between the leading edge and the trailing edge. When the front-rear interval of the floor surface is large, it is preferable to provide a biasing nozzle 5 for accelerating the air flow that attenuates in the middle of the interval. In the example of FIG. 1, one urging nozzle 5 that swings toward the rear edge side is provided at the center of the width of the installation floor, but a plurality of urging nozzles may be provided side by side in the width direction. A nozzle that ejects air in a fan shape may be provided.

  FIG. 3 is a diagram showing an air circuit of the nozzle and cylinder described above. Since the roll ironer is provided with an air source for driving an actuator necessary for its operation, the main nozzles 1a and 1b, the auxiliary nozzle 4, the dust collecting nozzle 3 and the energizing nozzle are utilized using the air source 31. The air is injected from 5 and the cylinders 32 and 33 are driven. The air from the air source 31 is stored in an air tank 35 through a mist separator 34, and the main nozzle 1, the auxiliary nozzle 4, the dust collecting nozzle 3, and the energizing nozzle from the air tank via the on-off valve 6 (6a to 6d). 5 is supplied with air. The auxiliary nozzle 4, the dust collection nozzle 3, and the urging nozzle 5 are connected to an air flow path that is opened and closed by a single on-off valve 6d.

  As an example of setting the nozzle flow rate, the main nozzle 1 adjusts the high-speed nozzle in the range of 300 L to 500 L / min (ANR) and the low-speed nozzle in the range of 100 L to 300 L / min (ANR). The central energizing nozzle and the dust collecting nozzle are adjusted to be 200 to 400 L / min (ANR).

  Air before passing through the mist separator 34 is supplied to the reciprocating cylinder 32 of the nozzle unit 11 and the swing cylinder 33 of the auxiliary nozzle and the urging nozzle via the electromagnetic switching valves 36 and 37. The electromagnetic switching valves 36 and 37 and the electromagnetic opening / closing valve 6 are switched and opened / closed by a command from a controller that controls the operation of the cleaning device. A pressure switch 38 for detecting the pressure of the air tank 35 is provided, and when the pressure in the air tank 35 drops below a specified value (for example, 0.4 to 0.5 MPa), the controller switches the electromagnetic switching valve. By shutting off the signals of 36 and 37 and the electromagnetic on-off valve 6 and closing these valves, it is possible to prevent the air pressure from decreasing and hindering the operation of the roll ironer.

  The operation interval or operation timing of the floor cleaning device can be freely set by a timer provided in the controller according to the state of the installation floor surface and the lint deposition rate.

  When the operation of the floor cleaning device is started, the on-off valve 6 is opened and air is injected from the low speed nozzle 1a, the auxiliary nozzle 4, the dust collection nozzle 3 and the energizing nozzle 5, and the exhaust blower 24 is operated. Air is sucked from the suction port 2a and the auxiliary suction port 2b. At the same time, the switching valves 36 and 37 are alternately switched, the nozzle unit 11 starts to reciprocate, and the auxiliary nozzle 4 and the urging nozzle 5 start swinging operation.

  Limit switches 14 and 14 are provided at the movement stroke end of the nozzle unit 11, and the switching valve 36 is switched when the nozzle unit 11 operates the limit switch at the movement end.

  When the limit switch 14 detects one movement or one reciprocation of the nozzle unit 11, the on-off valve 6a is closed, the on-off valve 6b is opened, and air is injected from the high-speed nozzle 1b. In this state, the nozzle unit 11 is reciprocated a plurality of times, and the auxiliary nozzle 4, the dust collection nozzle 3, the urging nozzle 5, and the exhaust blower 24 are continuously operated during that time, thereby completing one cleaning operation.

  The weak air flow from the low-speed nozzle 1a injected in parallel with the floor surface at a position slightly higher than the floor surface flows in layers along the floor surface, and the flow velocity at a slightly higher position from the floor surface becomes maximum, and below that The lint uplift is prevented. The lint pushed and moved by the weak air flow is entangled with each other in a roll shape and moves to the rear side to roll.

  When this roll of lint is formed, the strong air flow is blocked from being blown directly on the downstream cotton soot, and the lint forming the roll is entangled with each other. Even if the switch is made, the lint does not soar, but moves to the rear so that it rolls while tangling the swab on the downstream side.

  The lint on both sides of the installation floor is also blown toward the center by the air flow from the auxiliary nozzle 4 in the meantime, and the lint entangled in a roll shape is further moved to the suction port 2 by the air flow from the dust collection nozzle 3. They are collected and sucked into the suction box 21a. The lint remaining on both side portions As of the installation floor is guided to the auxiliary suction port 2b by the air flow of the swinging auxiliary nozzle 4 and sucked into the suction box 21b.

  By such an action, the lint on the installation floor A is removed without scattering with a small amount of air.

  The above is an example in which the present invention is used for cleaning the floor surface of a roll ironer, and is an example in which the advantages of the present invention are best exhibited. It can also be used for floor cleaning. FIG. 4 is a schematic diagram showing an example in which the floor surface cleaning device of the present invention is installed in a part of a linen product washing line.

  In FIG. 4, 61 is a roll ironer, 62 is a folder for folding the laundry, 63 is a loading machine for unfolding the laundry sent from a dryer (not shown) and feeding it into the roll ironer 61, and 64 is a roll eye. A conveyor (incorporated with an inspection apparatus) for transporting the laundry from the ronner 61 to the folder 62, 65 is a sorting table for sorting the folded laundry by customer or type.

  The roll ironer 61, the folder 62, the feeding machine 63, and the conveyor 64 are provided with the gantry 9, and a gap is formed between the frame and the installation floor surface. The frame of the sorting table 65 is supported by relatively thin legs, and has a large gap with the installation floor surface.

  In FIG. 4, rails 12 and 15 are arranged on both sides of the washing line after the charging machine 63 where lint is removed from the laundry, the nozzle unit 11 on one side, and the suction box 21 on the other side. 15 is arranged to be movable along the line 15. The nozzle unit 11 is provided with a plurality of low-speed nozzles and high-speed nozzles facing the suction box 21 as in FIG. Therefore, in the example of FIG. 4, the airflow that flows on the installation floor of the roll ironer 61 is a direction orthogonal to the laundry feeding direction.

  The nozzle unit 11 and the suction box 21 are connected to and moved by chains 16 and 17 provided along the rails 12 and 15, and limit switches 14 a to 14 j and chains 16 provided along the rail 12 are provided. The moving position is detected by an encoder or the like provided in the drive system 17.

  In the example shown in the figure, when the installation floor of the charging machine 63 is cleaned, the nozzle unit 11 reciprocates between the limit switches 14a and 14b, and the suction box 21 stops between the limit switches 14f and 14g. . When cleaning the installation floor surface of the roll ironer 61, the nozzle unit 11 reciprocates between the limit switches 14b and 14c, and the suction box 21 stops between the limit switches 14g and 14h. Similarly, when cleaning the installation floor surface of the conveyor 64, the nozzle unit 11 reciprocates between the limit switches 14c and 14d, and the suction box 21 stops between the limit switches 14h and 14i. Further, when cleaning the installation floor of the folder 62, the nozzle unit 11 reciprocates between the limit switches 14d and 14e, and the suction box 21 stops between the limit switches 14i and 14j.

  The nozzle unit 11 has the same structure as that described with reference to FIG. 1, but the reciprocating cylinder 32 is not necessary because the nozzle unit 11 can be reciprocated by the chain 16. If an electromagnetic on-off valve is provided for each of a plurality of high-speed nozzles and low-speed nozzles, and each nozzle passes immediately in front of the gantry 9, the air flow collides with the gantry 9. The turbulence of the airflow caused by this can be prevented.

  The suction box 21 determines the position of the suction port 2 according to the arrangement of the installed base 9. The auxiliary nozzle 4 and the dust collection nozzle 3 may be appropriately provided as necessary. The auxiliary nozzle 4 and the dust collection nozzle 3 provided at the boundary between adjacent cleaning areas are rotated 90 degrees to 180 degrees. By installing it on a moving table, it can be used in common on both cleaning areas.

1 (1a, 1b) Main nozzle 2 (2a, 2b) Suction port 3 Dust collection nozzle 4 Auxiliary nozzle 5 Energizing nozzle 7 (7a-7f) Flow rate adjusting valve 6 (6a-6d) Electromagnetic switching valve 9 (9, 9a) , 9b) Mount 11 Round trip (nozzle unit)
35 Air tank 51 Machine frame A Cleaning area

Claims (4)

An air ejection nozzle that blows air from one side of the area to be cleaned to the other side facing the area along the floor surface of the area, and an air inlet provided on the other side, wherein the air ejection nozzle includes at least At the beginning of the cleaning operation , the air flow flowing in layers along the floor surface with the strength to push the lint on the floor surface without raising it between the machine frame installed in the area and the floor surface. A floor cleaning device for a laundry factory.   The air intake port is opened with a width narrower than the width of the region on the other side, and includes a dust collection nozzle or an auxiliary nozzle that blows air from the side of the region toward the air intake port. The laundry factory floor cleaning device described. A plurality of the air ejection nozzles are provided, and the plurality of air ejection nozzles are spaced apart from the reciprocating stroke on a reciprocating platform that reciprocates in the direction perpendicular to the air blowing direction of the air ejection nozzle on the one side. The floor cleaning apparatus of the laundry factory of Claim 1 or 2 arrange | positioned by these.   An air circuit for supplying air to the air ejection nozzle is provided with an electromagnetic switching valve or an electromagnetic opening / closing valve and a flow rate adjusting valve, and the opening and closing operation and adjustment of these valves cause the air ejection nozzle to be in a cleaning region at the beginning of the cleaning operation. The floor cleaning apparatus for a laundry factory according to claim 1, 2 or 3, wherein an air flow that does not soar lint on the floor surface of the laundry is blown out and then switched to a stronger air flow.

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