JP2007244456A - Rolled damp hand towel preparing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rolled damp hand towel preparing apparatus capable of improving the productivity of rolled damp hand towels without requiring complicated maintenance work. <P>SOLUTION: An extension rib 47e presses a part of a sheet material S passing between a water spray casing 43 and a conveyor 51. Since the extension rib 47e is brought into contact with only a part of an end of the sheet material S in the direction of conveyance, the sheet material S can smoothly pass between the water spray casing 43 and the conveyor 51. Furthermore, since the extension rib 47e presses only part of the sheet material S, adhesion of the sheet material S to a conveyor belt 51a can be prevented, and therefore, the productivity of the rolled damp hand towels M can be improved. In addition, since the extension rib 47e is not a rotary member such as a roller, not so much dust is accumulated, and such complicated maintenance work as removing the accumulated dust can be eliminated. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a winding hand towel manufacturing apparatus, and more particularly to a winding hand towel manufacturing apparatus that can improve the productivity of winding hand towels and can eliminate complicated maintenance work.

  2. Description of the Related Art Conventionally, a rolled hand towel manufacturing apparatus that manufactures a rolled wound hand towel from a sheet material made of paper or nonwoven fabric is known. For example, Japanese Patent Laying-Open No. 2005-95273 (Patent Document 1) discloses a transport belt 51 that transports a belt-shaped sheet material S, and an injection pump 83a that supplies water to the sheet material S transported by the transport belt 51. The water supply unit 42 sprays the water supplied by the jet pump 83a in the width direction of the sheet material S, and the sheet material S sprayed by the water spray unit 42 is transported by the transport belt 51 and jointly with the transport belt 51. A winding hand towel manufacturing apparatus 1 including a winding means M that forms a cylindrical hand (roll-shaped) winding hand towel M is disclosed. The sprinkling part 42 of the rolled hand towel manufacturing apparatus 1 is provided with a cylindrical sprinkling roller 42 a extending in a direction orthogonal to the conveying direction of the sheet material S.

The watering roller 42 a is rotatably supported by an opening formed in the watering main body 42 b and is in contact with the transport belt 51. When the conveying belt 51 is rotated in this state, the sheet material S passes between the watering roller 42 a and the conveying belt 51 while being sandwiched between the watering roller 42 a and the conveying belt 51. Here, a slight gap is provided between the openings of the watering roller 42a and the watering main body 42b, and the watering roller 42a rotates with the conveyance of the sheet material S, so that the inside of the watering main body 42b is opened from the gap. The water stored in is sprayed onto the sheet material S. The sprayed sheet material S is transported to the forming means 50 by the transport belt 51, wound by the forming means 50, and formed into a cylindrical (roll-shaped) hand towel M.
JP 2005-95273 A

  However, the sheet material S conveyed by the conveyance belt 51 may be twisted or broken when the conveyance direction end thereof contacts the watering roller 42a. In this case, there is a problem that the sheet material S cannot pass between the watering roller 42a and the conveying belt 51, is curled before the watering roller 42a, and fails to form the winding towel M.

  Further, the optimum water spray amount in the sheet material S varies depending on the thickness of the sheet material S. However, the above-described rolling hand towel manufacturing apparatus 1 does not have a function of automatically adjusting the amount of water spray according to the thickness of the sheet material S, and a large amount of water may remain on the conveyor belt 51. Here, the sheet material S is pressed across the entire width direction by the watering roller 42 a and the conveying belt 51, and is pressed toward the conveying belt 51 by the watering roller 42 a. Therefore, when the sheet material S is conveyed by the conveyance belt 51, the entire sheet material S is pressed toward the conveyance belt 51 by the watering roller 42 a, so that the sheet material S sticks to the conveyance belt 51. As a result, there is a problem in that the sheet material S continues to rotate with the conveying belt 51 adhered thereto, and the forming of the winding hand towel M fails.

  Further, since the watering roller 42a rotates while contacting the conveying belt 51, dust on the conveying belt 51 adheres to the watering roller 42a. As the adhering dust accumulates, the sprinkling roller 42a is rotated by the outer diameter of the sprinkling roller 42a increasing due to the dust and coming into contact with the opening of the sprinkling main body 42b. No longer. Therefore, there is a problem that a complicated maintenance work of removing the accumulated dust is necessary.

  The present invention has been made to solve the above-described problems, and an object thereof is to provide a winding hand towel manufacturing apparatus that can improve the productivity of winding hand towels and can dispense with complicated maintenance work.

  In order to achieve this object, a rolling hand towel manufacturing apparatus according to claim 1 includes a conveyor for conveying a belt-shaped sheet material, a water supply pump for supplying liquid to the sheet material conveyed by the conveyor, and the water supply pump And a sheet forming apparatus for forming a roll-shaped winding hand towel in cooperation with the conveyance conveyor while conveying the sheet material supplied by the conveyance conveyor, and connected to the water supply pump. And having one or a plurality of water spray ports for spraying the liquid supplied from the water pump, and for spraying the liquid in the width direction of the sheet material conveyed by the transport conveyor from the water spray port In order to press a part of the sheet material passing between the case and the watering case and the conveyor, the watering case and the conveyor Together provided between, and a one or more extended rib is extended in the conveying direction of the sheet material.

  According to a second aspect of the present invention, the extending rib is formed in a curved shape having a convex shape on the conveyor side.

  The winding hand towel manufacturing apparatus according to claim 3 is the winding hand towel manufacturing apparatus according to claim 1 or 2, wherein a plurality of the extending ribs are provided, and the plurality of extending ribs are in a conveying direction of the sheet material. Are formed in the same shape when viewed in a direction perpendicular to the direction of the sheet, and are arranged in a direction perpendicular to the conveying direction of the sheet material.

  The rolling hand towel manufacturing apparatus according to claim 4 is the rolling towel manufacturing apparatus according to any one of claims 1 to 3, wherein the water spray port of the water spray case is directed in the direction of gravity and is opposed to the transport conveyor. Is provided.

  The wound hand towel manufacturing apparatus according to claim 5 is the wound hand towel manufacturing apparatus according to claim 4, wherein the wound hand towel manufacturing apparatus includes a heater that heats the liquid sprayed from the water spout of the water spray case to the sheet material. Yes.

  According to the rolling hand towel manufacturing apparatus of the first aspect, the water spray case is connected to the water supply pump and is provided to face the transport conveyor. When the transport conveyor is rotated in this state, the belt-shaped sheet material is transported by the transport conveyor and passes between the water spray case and the transport conveyor. At this time, liquid is supplied to the sheet material from the water supply pump to the watering case, so that the liquid is sprayed from the watering port of the watering case in the width direction of the sheet material. Thereafter, the sprinkled sheet material is conveyed by a conveying conveyor, and the forming apparatus winds the sheet material together with the conveying conveyor to form a roll-shaped hand towel.

  Here, one or a plurality of extending ribs extending in the sheet material conveying direction are provided between the watering case and the conveying conveyor, and the extending ribs pass between the watering case and the conveying conveyor. A part of the sheet material is pressed. Thereby, when the conveyed sheet material contacts with the extending rib, the extending rib contacts only a part of the end portion of the sheet material in the conveying direction. Therefore, since the contact area between the extending rib and the sheet material conveyance direction end can be reduced, it is possible to reduce resistance to the sheet material that is about to pass between the water spray case and the conveyance conveyor. Therefore, since the sheet material can pass smoothly between the watering case and the conveyor, it is possible to suppress the phenomenon that the sheet material is rounded before the extension rib, and to improve the productivity of the hand towel. .

  Further, since the extending rib only presses a part of the sheet material, even if a large amount of liquid remains on the conveyor, sticking of the sheet material to the conveyor can be reduced. Therefore, it is possible to suppress the phenomenon that the conveying conveyor continues to rotate while the sheet material is adhered to the conveying conveyor, and there is an effect that it is possible to improve the productivity of the winding towel.

  Furthermore, since the extending rib is not a rotating member such as a roller, dust accumulation is small. Therefore, there is an effect that the complicated maintenance work of removing the accumulated dust can be eliminated.

  According to the winding hand towel manufacturing apparatus of claim 2, in addition to the effect exhibited by the winding hand towel manufacturing apparatus of claim 1, the extending rib is formed in a curved shape having a convex on the conveyor side. Therefore, since the space between the extending rib and the conveying conveyor into which the sheet material enters gradually becomes narrow, the sheet material can be more smoothly passed between the extending rib and the conveying conveyor.

  According to the rolling hand towel manufacturing apparatus according to claim 3, in addition to the effect exerted by the winding towel manufacturing apparatus according to claim 1 or 2, the plurality of extending ribs are respectively in a direction perpendicular to the conveying direction of the sheet material. They are formed in the same shape and are arranged in a direction orthogonal to the sheet material conveying direction. Therefore, when the sheet material is to be skewed with respect to the conveyance direction, the extending rib can regulate the skew of the sheet material over the entire width direction of the sheet material. Accordingly, there is an effect that the sheet material can be wound without being skewed to form a wound hand towel.

  According to the rolling hand towel manufacturing apparatus according to claim 4, in addition to the effect produced by the winding towel manufacturing apparatus according to any one of claims 1 to 3, the sprinkling port of the sprinkling case provided facing the transport conveyor, It is directed in the direction of gravity.

  Here, when the water spray port of the water spray case is oriented in the horizontal direction, in order to spray liquid from the water spray port to the sheet material, the liquid must be jetted vigorously. Therefore, in order to increase the pressure of the liquid sprayed from the water spray port of the water spray case, the water spray port must be formed small, and as a result, the water spray port is easily clogged. On the other hand, according to the rolling hand towel manufacturing apparatus of this claim, since the watering port of the watering case provided facing the conveyor is directed in the direction of gravity, the liquid sprayed from the watering port is Drops from the water spout to the conveyor by gravity. Therefore, since it is not necessary to increase the pressure of the liquid for watering, the watering port can be formed large. Therefore, there is an effect that clogging of the water spout can be suppressed.

  Moreover, since a water spout can be formed large, the amount of water sprayed per unit time can be increased. Thereby, even if it rotates a conveyance conveyor faster than usual, the amount of water sprinkling to a sheet | seat material can fully be ensured. Therefore, the conveyor can be rotated faster than usual, and the time required for winding the hand towel can be shortened, so that it is possible to improve the productivity of the hand towel.

  Furthermore, since it is not necessary to increase the pressure of the liquid to be sprinkled, there is no need to provide a high-performance water supply pump, and a low-grade water supply pump is sufficient, and the apparatus cost can be reduced correspondingly.

  According to the rolling hand towel manufacturing apparatus of claim 5, in addition to the effect of the rolling towel manufacturing apparatus of claim 4, the heater provided in the winding towel manufacturing apparatus sprays water from the water spout of the water spray case to the sheet material. The liquid to be heated is heated.

  Here, when a roller is provided instead of the extending rib, the liquid heated by the heater is sprayed onto the sheet material through the roller. At this time, since the heat of the liquid is conducted to the roller, the temperature of the liquid sprayed onto the sheet material is lowered. Therefore, in order to bring the liquid sprayed onto the sheet material to a desired temperature, the heater must heat the liquid more than necessary, and the power consumption increases accordingly.

  On the other hand, according to the hand towel manufacturing apparatus of this claim, since the extending rib is provided in place of the roller, the liquid heated by the heater can be directly sprayed onto the sheet material. Therefore, there is an effect that power consumption can be reduced by preventing a decrease in thermal efficiency.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is an external perspective view of a hand towel manufacturing apparatus 1 according to an embodiment of the present invention. The rolled hand towel manufacturing apparatus 1 is an apparatus for manufacturing a roll-shaped wound towel M (see FIG. 2) using a sheet material S made of paper, nonwoven fabric, chemical fiber pulp, or the like. First, with reference to FIG. 1, the external configuration of the hand towel manufacturing apparatus 1 will be described.

  As shown in FIG. 1, the hand towel manufacturing apparatus 1 mainly includes a main body 2 that houses a towel roll R around which a sheet material S is wound, and an upper cover 3 that seals the main body 2. The main body 2 is a member that forms the skeleton of the hand towel manufacturing apparatus 1 and has a substantially box-like appearance. The upper part (upper side in FIG. 1) of the main body 2 is formed as an opening, and the opened part is closed by the upper cover 3. The upper cover 3 is formed with a pair of opening and closing shafts 3 a and 3 a, and the opening and closing shafts 3 a and 3 a are rotatably supported by a pair of recessed grooves 2 a and 2 a formed in the body 2.

  On the front side of the main body 2 (left side in FIG. 1), an operation panel 4 for a user to perform various operations is provided. The operation panel 4 is provided with various buttons such as a start button 4a for instructing the start of manufacturing the hand towel M, and various operations are performed by pressing these buttons. The operation panel 4 is provided with a liquid crystal display 4b. The liquid crystal display 4b displays the setting state of the hand towel manufacturing apparatus 1 and various operation messages as necessary. For example, when the towel roll R approaches the end, a warning message for instructing replacement of the towel roll R is displayed on the liquid crystal display 4b.

  Below the operation panel 4 (lower side in FIG. 1), a tray serving lid 5 that stores the manufactured hand towel M (see FIG. 2) is disposed so as to be openable and closable. The wound hand towel M is manufactured by various devices in the main body 2 to be described later, and is stored in the tray / lid 5 (see FIG. 2). The user pulls the tray / lid 5 toward the front and takes out the stored wound towel M.

  Moisture is imparted to the opened portion of the main body 2 to the towel roll R, the conveying device 20 that draws the sheet material S from the towel roll R into the main body 2, and the sheet material S drawn by the conveying device 20. The water tank T which stores the water for doing is arrange | positioned.

  The towel roll R is formed by adhering the end of a sheet material S, which is a raw material for the wound towel M, to the core and winding it in a roll shape. Is inserted. The main body 2 is provided with a storage portion 10 for storing a towel roll R and an insertion member Ra, which will be described later, and a pair of concave guide grooves 13 and 13 are formed in the storage chamber 11 forming the storage portion 10. ing. The insertion member Ra inserted into the towel roll R is inserted into the guide groove 13 and is rotatably held by a holding groove 12 (see FIG. 2) described later.

  The conveying device 20 is a device for pulling out the sheet material S from the towel roll R and conveying the sheet material S into the main body 2. The transport device 20 is disposed on the back side of the main body 2 rather than the towel roll R in order to draw the sheet material S toward the back side of the main body 2. An inlet portion of the conveying device 20 is a suction port 21 through which the sheet material S passes. The suction port 21 is an inlet for a sheet material S formed by a cover 22 and a counter member 26 (see FIG. 2), which will be described later.

  A pair of first guide members 15a and 15a and second guide members 15b and 15b are formed on the side surfaces of the towel roll R and the side walls facing the sheet material S, respectively. Here, generally, when the sheet material S conveyed by the conveying device 20 comes into contact with the opening width end portion 21a of the suction port 21, the sheet material S is conveyed into the main body 2 while being bent. When the sheet material S is conveyed into the main body 2 in a bent state, the sheet material S is clogged in the main body 2 by being folded and thickened. In order to avoid this, the suction port 21 is formed to have a width larger than the width of the sheet material S.

  However, when the sheet material S is skewed from the conveyance direction, the sheet material S comes into contact with the opening width end portion 21a of the suction port 21. Therefore, in order to prevent (suppress) this, the first guide member 15a, 15 a and the second guide members 15 b and 15 b are formed on the inner side of the opening width end portion 21 a of the suction port 21, and guide the skew in the conveying direction of the sheet material S passing through the suction port 21.

  Next, with reference to FIG. 2, an internal configuration of the wound towel manufacturing apparatus 1 will be described. FIG. 2 is a side sectional view of the rolling hand towel manufacturing apparatus 1. For easy understanding, only main components are schematically shown.

  As shown in FIG. 2, the rolling hand towel manufacturing apparatus 1 includes a storage unit 10 that holds and stores an insertion member Ra that is inserted into a towel roll R, and a sheet material from the towel roll R that is held in the storage unit 10. A conveying device 20 that conveys S into the main body 2, a cutting device 30 that cuts the sheet material S conveyed into the main body 2 by the conveying device 20, and watering the sheet material S cut by the cutting device 30. A watering device 40 and a forming device 50 for forming the sheet material S sprayed by the watering device 40 into a roll shape are mainly provided. The wound hand towel M is manufactured by the sheet material S being rolled up by the forming device 50.

  The storage unit 10 is a part for rotatably holding the towel roll R and the insertion member Ra inserted into the towel roll R, and a storage chamber 11 for storing the towel roll R and the insertion member Ra. And a holding groove 12 for holding the insertion member Ra to be inserted into the towel roll R stored in the storage chamber 11, and a straight line extending from the holding groove 12 upward (upward in FIG. 2). The guide groove 13 is provided.

  The insertion member Ra is a member that holds the storage chamber 11 and the towel roll R in a non-contact manner and is held in the holding groove 12. The insertion member Ra is composed of two symmetrical members, and is inserted into both side surfaces of the towel roll R. The insertion member Ra includes a cylindrical linear portion 14a that is inserted into the side surface of the towel roll R, and a disk-shaped disc portion that is connected to the linear portion 14a and restricts movement of the towel roll R in the axial direction. 14b and a cylindrical held portion 14c that is connected to the disk portion 14b and held in the holding groove 12.

  The holding groove 12 is configured to rotatably hold the held portion 14c of the insertion member Ra, and is recessed in the side wall (the back side and the near side in FIG. 2) of the storage chamber 11. The guide groove 13 guides the held portion 14 c of both insertion members Ra inserted into the towel roll R to the holding groove 12 from above the storage chamber 11. The storage chamber 11 is formed in a substantially U shape in a side view, and is formed with an upper portion (upper side in FIG. 2) opened. The towel roll R and the insertion member Ra are stored in a space formed in the storage chamber 11 and covered with the upper cover 3 from above the space of the storage chamber 11.

  The transport device 20 is a device that pulls out the sheet material S from the towel roll R stored in the storage chamber 11 and transports the pulled sheet material S into the main body 2. The conveyance device 20 mainly includes a conveyance roller 23 that conveys the sheet material S from the towel roll R, a cover 22 that sandwiches the sheet material S together with the conveyance roller 23, and a facing member 26 that is provided to face the cover 22. In preparation. The conveyance rollers 23 are rotating members that are driven by a conveyance motor (not shown), and are arranged in a line in the direction orthogonal to the conveyance direction of the sheet material S (the front-rear direction in FIG. 2). On the outer peripheral surface of the six conveying rollers 23, rubber ring-like bodies 25 are respectively provided.

  The cover 22 is pivotally supported by a shaft 22a provided below, and is urged counterclockwise in FIG. 2 about the shaft 22a by a torsion spring (not shown). As a result, the cover 22 holds the sheet material S together with the conveyance roller 23, and assists the conveyance of the sheet material S by the conveyance roller 23. In this cover 22, a portion that sandwiches the transport roller 23 and the sheet material S is formed in an arc shape along the outer periphery of the transport roller 23, and from the portion that sandwiches the transport roller 23 and the sheet material S. The extending portion 22b extending from the sandwiched portion to the side opposite to the conveyance direction (left side in FIG. 2) is formed. The extending portion 22b is formed with a protruding portion 24 that protrudes toward an opposing member 26 described later.

  The facing member 26 is formed continuously with a member forming the storage chamber 11, the sheet material S is formed in a substantially horizontal direction on the side opposite to the conveyance direction (left side in FIG. 2), and the sheet material S is conveyed in the conveyance direction side ( The right side of FIG. 2 is curved in an arc shape. The cover 22 and the facing member 26 form the suction port 21 through which the sheet material S drawn from the towel roll R passes.

  Further, the opposing member 26 is formed with a through hole 26 a that penetrates the opposing member 26. Six through holes 26 a are formed side by side in a direction orthogonal to the conveying direction of the sheet material S, and the conveying roller 23 protrudes from each through hole 26 a to the suction port 21. Thus, when the transport roller 23 is rotated clockwise in FIG. 2, the sheet material S is pulled out from the towel roll R, passes through the suction port 21, and is transported to the cutting device 30 and the water spray device 40.

  The extending portion 22 b is formed with a protruding portion 24 that protrudes from the extending portion 22 b toward the opposing member 26. The protruding portion 24 extends in the conveyance direction of the sheet material S drawn from the towel roll R and is configured not to contact the conveyance roller 23. Further, six protrusions 24 are arranged in a direction orthogonal to the conveying direction of the sheet material S (the front-rear direction in FIG. 2). The six projecting portions 24 are disposed on the side opposite to the transporting roller 23 from the transporting roller 23 and on the extension line in the reverse transporting direction that passes through the six transporting rollers. The projecting portion 24 presses a part of the sheet material S, and when the sheet material S tries to skew with respect to the conveyance direction, the protrusion 24 bites into the sheet material S and suppresses the skew of the sheet material S. It is.

  Between the protrusions 24, one of a pair of detection sensors (not shown) for detecting the presence or absence of the sheet material S passing through the suction port 21 is disposed. The detection sensor is a known optical sensor including a light emitting element and a light receiving element (not shown). Among these, the light emitting element is assembled in a sensor detection hole (not shown) drilled between the protrusions 24, and the light receiving element is a sensor detection hole (not shown) drilled in the facing member 26. ) Is assembled in. The detection sensor emits light and receives light through the suction port 21 and detects the presence or absence of the sheet material S passing through the suction port 21.

  The cutting device 30 mainly includes a fixed blade 31 and a rotary blade 32. The fixed blade 31 and the rotary blade 32 are extended in the width direction of the sheet material S (the front-rear direction in FIG. 2), and the rotary blade 32 rotates at a predetermined timing, and between the fixed blade 31 and the rotary blade 32. The sheet material S sandwiched between the two is cut with a predetermined length.

  The watering device 40 is heated by a water tank T for storing water, a water supply pump 83a for supplying water from the water tank T, a heater 84a for heating water supplied by the water supply pump 83a, and the heater 84a. A watering case 43 for spraying water on the sheet material S is mainly provided. A water supply port Tm of the water tank T communicates with a water supply pump 83 a through a water supply pipe 41, and the water supply pump 83 a is connected to the heater 84 a and the water spray case 43 through a water supply hose 42.

  Here, with reference to FIG. 3, the structure of the watering case 43 is demonstrated. FIG. 3 is an exploded perspective view showing components constituting the watering case 43. The watering case 43 includes a substantially cylindrical water supply hole case 44 connected to the water supply hose 42, a rectangular dish-shaped upper watering case 45 connected to the water supply hole case 44, and water flowing from the upper watering case 45. Are mainly provided with a water spout case 46 that disperses the water in the width direction of the sheet material S, and a container-like lower water sprinkling case 47 that is fixed to the spout case 46.

  The water supply hole case 44 is a part that receives water supplied from the water supply pump 83a via the water supply hose 42 (see FIG. 2). The water supply hole case 44 is formed with a cylindrical mounting pipe 44a formed so as to protrude from the center thereof. Here, the water supply hose 42 is formed of highly flexible rubber, and the inner diameter of the water supply hose 42 is smaller than the outer shape of the mounting pipe 44a. Thereby, the water supply hose 42 is attached to the attachment pipe 44a with the inner diameter of one end thereof widened, and is in close contact with the attachment pipe 44a. A through hole 44c that penetrates the water supply hole case 44 is formed inside the mounting pipe 44a, and allows water supplied from the water supply hose 42 to pass therethrough.

  Three substantially cylindrical screw holes 44 b are formed on the outer surface of the water supply hole case 44. The screw hole 44b is screwed into the screw hole Pa of the packing P and the screw hole 45e of the upper water spray case 45 by three screws N1. Thereby, the water supply hole case 44 is assembled to the upper water spray case 45 via the packing P. The packing P is formed of a ring-shaped rubber and prevents water leakage from between the water supply hole case 44 and the upper water spray case 45.

  The upper water spray case 45 is formed in a rectangular dish shape, and a cylindrical portion 45a is formed at the center thereof. Three screw holes 45e that are screwed into the screw N1 are formed on the outer periphery of the upper surface of the cylindrical portion 45a. Further, a flange-like peripheral portion 45b is formed on the upper surface periphery of the upper water spray case 45, and four screw holes 45f are formed at four corners on the upper surface of the peripheral portion 45b. The upper water spray case 45 is fixed to the lower water spray case 47 by screwing the screw holes 45f into the screw holes 47c of the lower water spray case 47 with the four screws N2. The upper water spray case 45 is formed with a wall portion 45h extending vertically from its lower surface. The wall portion 45 h is fixed to the water spout case 46 by being fitted into the wall portion 46 a of the water spout case 46.

  A cylindrical inner cylindrical portion 45c is provided inside the cylindrical portion 45a. The inside of the inner cylindrical portion 45c passes through the upper water spray case 45, and a substantially columnar T-shaped rod 48 is inserted into the inner cylindrical portion 45c. A coil spring B is inserted between the cylindrical portion 45a and the inner cylindrical portion 45c.

  The T-shaped rod 48 mainly includes a cylindrical shaft portion 48b and a flange-shaped flange portion 48a formed at one end of the shaft portion 48b (on the water supply hole case 44 side). The shaft portion 48b penetrates the inside of the inner cylindrical portion 45c and is configured to be movable in the vertical direction in FIG. The flange portion 48 a abuts on the upper end of the coil spring B, and is biased toward the through hole 44 c of the water supply hole case 44 by the coil spring B. Thereby, the flange part 48a obstruct | occludes the normal through-hole 44c, and stops the water supplied from the water supply hose 42. FIG. On the other hand, when the water pressure pressurized by the water supply pump 83a is larger than the urging force of the coil spring B, the T-shaped rod 48 is pressed by the water pressure and moves toward the inner cylindrical portion 45c. Thereby, the through-hole 44c is opened and the water supplied from the water supply hose 42 is allowed to pass through.

  A substantially conical claw portion 48c is formed on the other end of the shaft portion 48b (on the water spray port case 46 side) with a groove having a smaller diameter than the outer diameter thereof (see FIG. 4B). The claw portion 48 c is attached to the water supply valve 49 by being press-fitted into a concave portion 49 a that is recessed in the substantially frustoconical water supply valve 49.

  The water supply valve 49 is formed of silicon rubber and is a part that closes and opens a nozzle 45g (see FIG. 4B) penetrating a part between the cylindrical portion 45a and the inner cylindrical portion 45c. That is, when the T-rod 48 is urged toward the water supply hole case 44, the water supply valve 49 is brought into close contact with the lower surface of the nozzle 45g and closes the nozzle 45g. On the other hand, when the T-shaped rod 48 moves toward the inner cylindrical portion 45 c, the water supply valve 49 moves toward the water spout case 46 with the movement of the T-shaped rod 48. Thereby, the water supply valve 49 opens the nozzle 45g and allows the water supplied from the water supply hose 42 to pass in the front-rear direction with respect to the paper surface of FIG.

  The water spout case 46 has a wall portion 46a extending vertically from the outer periphery thereof, is formed in a container shape with the upper portion thereof opened, and the central portion of the wall portion 46a is formed in a cylindrical shape. The wall 46 a is configured to be slightly smaller than the shape of the wall 45 h of the upper water spray case 45, and is inserted into the wall 45 h of the upper water spray case 45. At this time, the water spout case 46 is fixed to the upper water spray case 45 by engaging the engagement hole 46c formed in the wall 46a and the claw portion (not shown) of the upper water spray case 45.

  The bottom plate of the water spout case 46 has a plurality of water spouts 46b penetrating through the bottom plate in a straight line. The plurality of sprinkling ports 46b are arranged in a direction orthogonal to the conveying direction of the sheet material S, disperse the water supplied from the water supply pump over the entire width direction of the sheet material S, and distribute the dispersed water to the sheet Water is sprinkled on the material S. In addition, each water spout 46 b is directed in the direction of gravity and provided to face the conveyor 51. Thereby, since it becomes unnecessary to inject water from the water spout 46b, the diameter of the water spout 46b can be formed larger than the diameter of the water spout (not shown) of the type which injects water.

  The lower sprinkling case 47 mainly includes a box-shaped container part 47a formed with its upper surface open, and a support shaft 47b that protrudes from the side surface of the container part 47a and is supported by the side plate of the main body 2. . The container portion 47a is assembled to the upper water spray case 45 by screwing the screw holes 47c formed at the four corners of the upper surface and the screw holes 45f of the upper water spray case 45 with screws N2. Thereby, a space is formed between the upper water spray case 45 and the lower water spray case 47, and the water spray port case 46 and the water supply valve 49 are accommodated in the space. The support shaft 47 b is a part that fixes the lower surface of the lower water spray case 47 and the water spray port 46 b of the water spray port case 46 to a position facing the transport conveyor 51 by being supported by the side plate of the main body 2. In the lower surface of the lower water spray case 47, a rectangular opening 47d penetrating the lower surface is formed in order to allow water sprayed from the water spray port 46b of the water spray port case 46 to pass therethrough. In the opening 47d, four extending ribs 47e are bridged.

  Then, with reference to FIG. 4, the detail of the extension rib 47e of the lower water spray case 47 and the effect | action of the water spray case 43 are demonstrated. 4A is a bottom view when the watering case 43 is assembled, and FIG. 4B is a through hole 44c and a nozzle 45g of the watering case 43 corresponding to the IVb-IVb line in FIG. 4A. 4C is a cross-sectional view showing a state in which the through hole 44c and the nozzle 45g of the water spray case 43 corresponding to the IVb-IVb line in FIG. 4A are opened. FIG. First, the details of the configuration of the lower water spray case 47 will be described.

  As shown in FIG. 4A, an opening 47 d is formed on the lower surface of the lower water spray case 47. The extending rib 47e extends in the short direction of the opening 47d and is provided with four pieces. The extending ribs 47e are arranged in the longitudinal direction of the lower sprinkling case 47, and respectively press the part of the sheet material S that passes between the sprinkling case 43 and the transport conveyor 51. Further, as shown in FIG. 4B, the four extending ribs 47d are formed in the same shape and have a curved shape in which the lower side (conveying conveyor 51 side) in FIG. 4B is convex. Is formed. When the support shaft 47b of the lower water spray case 47 is supported by the side plate of the main body 2, the short direction of the opening 47d is the conveyance direction of the sheet material S, and the longitudinal direction of the opening 47d is the sheet material S. It becomes the width direction.

  Next, the operation of the watering case 43 will be described. As shown in FIG. 4B, when the water supply pump 83a does not operate, the T-shaped rod 48 is urged toward the through hole 44c of the water supply hole case 44 by the coil spring B so that the through hole 44c is Block. At this time, the T-shaped rod 48 is urged toward the water supply hole case 44, so that the water supply valve 49 is brought into close contact with the lower surface of the nozzle 45g and closes the nozzle 45g (the state shown in FIG. 4B). ). Thereby, since the through-hole 44c and the nozzle 45g are obstruct | occluded, the water which remains in the water supply hose 42 (refer FIG. 2) does not reach the water spray port 46b of the water spray port case 46, and is not sprinkled from the water spray port 46b.

  On the other hand, as shown in FIGS. 4B and 4C, when the water supply pump 83 a is operated, water is supplied to the through hole 44 c of the water supply hole case 44 through the water supply hose 42. When the pressure of the supplied water increases, the water pushes down the T-shaped rod 48 downward in FIG. 4B against the biasing force of the coil spring B, and the through hole 44c is opened (FIG. 4C). ) State). When the T-shaped rod 48 is pushed down, the water supply valve 49 connected to the T-shaped rod 48 is also pushed downward in FIG. 4B, and the nozzle 45g is opened (state shown in FIG. 4C).

  As a result, as shown in FIG. 4C, the water supplied by the water supply pump 83a passes through the through hole 44c and further passes through the nozzle 45g in the front-rear direction with respect to the paper surface of FIG. 4C. To the water spout case 46 (see the arrow in FIG. 4C). The water that has reached the water spout case 46 is dispersed and dropped in the width direction of the sheet material S through the plurality of water spout ports 46b, passes through the opening 47d, and is sprinkled onto the sheet material S. Therefore, it is possible to impart appropriate moisture to the sheet material S conveyed by the conveyor 51.

  Returning to FIG. The forming apparatus 50 includes a transport conveyor 51 that transports the sheet material S, a cover member 52 disposed to face the transport belt 51a of the transport conveyor 51, and a transport direction side of the cover member 52 (left side in FIG. 2). And an inversion ring 53 disposed on the main body. The conveyor belt 51a of the conveyor 51 is a rubber flat belt having a plurality of protrusions (not shown) on the entire outer peripheral surface, and is between a pair of rotating rollers 51b and 51b that are rotatably supported by the main body 2. It is erected. The rotation rollers 51b and 51b are connected to a conveyor motor (not shown). When the conveyor motor is rotated, the rotation rollers 51b and 51b rotate counterclockwise in FIG. The sheet material S that has passed through the sprinkling case 43 is further transported by the rotation of the transport belt 51 a of the transport conveyor 51. The transported sheet material S has a core of entrainment at the tip of the sheet material S between the opposed surfaces of the cover member 52, and the sheet material S is held on the lower surface side of the inclined member 52b by the reversing ring 53, The rolled core is wound around the induced nucleus and formed into a rolled hand towel M. Then, when the forming of the winding hand towel M is completed, the rotation of the reversing ring 53 is stopped, and the winding hand towel M is transported toward the transport direction side (left side in FIG. 2) by the transport conveyor 51 and is placed on the tray serving lid 5. Released.

  Therefore, according to the hand towel manufacturing apparatus 1 of the present embodiment, the sheet material S is sandwiched between the cover 22 and the conveyance roller 23 via the suction port 21 before starting. Further, the water spray case 43 is connected to the water supply pump 83 a and is provided to face the transport belt 51 a of the transport conveyor 51. In this state, when the user presses the start button 4a (see FIG. 1), the transport motor (not shown) is driven to rotate the transport roller 23. Then, the sheet material S is pulled out from the towel roll R, passes through the suction port 21, reaches the transport roller 23, and is transported into the main body 2. The sheet material S conveyed into the main body 2 is cut to a predetermined length by the cutting device 30 and reaches the conveyor 51. The transport conveyor 51 is rotated by driving a conveyor motor (not shown), and the sheet material S is transported by the transport conveyor 51 and passes between the water spray case 43 and the transport conveyor 51. At this time, water is supplied to the sheet material S from the water supply pump 83a to the water spray case 43, so that water is supplied from the water spray port 46b of the water spray case 43 (see FIG. 4C) in the width direction of the sheet material S. Watered. Thereafter, the sprinkled sheet material S is transported by the transport conveyor 51, and the forming device 50 winds the sheet material S in cooperation with the transport conveyor 51 to form a roll-shaped hand towel M.

  Here, the extending rib 47 e (see FIG. 4A) presses a part of the sheet material S that passes between the water spray case 43 and the transport conveyor 51. Thus, when the sheet material S comes into contact with the extending rib 47e, the extending rib 47e contacts only a part of the end portion in the transport direction of the sheet material S. Accordingly, the contact area between the extending rib 47e and the end portion in the conveyance direction of the sheet material S can be reduced, so that the resistance to the sheet material S that tries to pass between the water spray case 43 and the conveyance conveyor 51 is reduced. be able to. Accordingly, the sheet material S can smoothly pass between the water spray case 43 and the transfer conveyor 51, so that the phenomenon that the sheet material S is rounded in front of the extending rib 47e can be prevented, and the productivity of the winding towel M is improved accordingly. it can.

  Further, since the extending rib 47e only presses a part of the sheet material S, even if a large amount of water remains on the conveying belt 51a of the conveying conveyor 51, the sheet material S sticks to the conveying belt 51a. Can be prevented. Therefore, the phenomenon that the conveying belt 51a continues to rotate while the sheet material S is adhered to the conveying belt 51a can be prevented, and the productivity of the hand towel M can be improved accordingly. Further, since the extending rib 47e is not a rotating member such as a roller, there is little accumulation of dust. Therefore, the complicated maintenance work of removing the accumulated dust can be eliminated.

  Further, the extending rib 47e is formed in a curved shape with the conveying conveyor 51 side convex. Therefore, since the space between the extending rib 47e and the transporting conveyor 51 into which the sheet material S enters gradually decreases, the sheet material S can pass between the extending rib 47e and the transporting conveyor 51 more smoothly.

  The extending ribs 47e are formed in the same shape and are arranged in a direction orthogonal to the conveying direction of the sheet material S. Therefore, when the sheet material S is to be skewed with respect to the transport direction, the extending rib 47e can regulate the skew of the sheet material S over the entire width direction of the sheet material S. Therefore, the wound hand towel M can be formed by winding the sheet material S without skewing.

  Further, the water spout 46b of the water sprinkling case 43 is directed in the direction of gravity (downward in FIG. 2). Here, when the water spout is directed in the horizontal direction, in order to sprinkle liquid from the water spout to the sheet material S, water must be jetted vigorously. Therefore, in order to increase the pressure of water sprayed from the water spout, the water spout must be formed small, and as a result, the water spout is likely to be clogged. On the other hand, according to the hand towel manufacturing apparatus 1 of the present embodiment, since the water spout 46b of the water sprinkling case 43 provided facing the transport conveyor 51 is directed in the direction of gravity, water sprinkling from the water spout 46b. The water thus dropped falls from the water spout 46b to the conveyor 51 due to gravity. Therefore, since it is not necessary to increase the pressure of the liquid for watering, the watering port 46b can be formed large. Therefore, clogging of the water spout 46b can be prevented.

  Moreover, since the sprinkling port 46b can be formed large, the amount of water sprinkling per unit time can be increased. Thereby, even if the conveyance conveyor 51 is rotated faster than usual, the amount of water sprayed onto the sheet material S can be sufficiently secured. Therefore, since the conveyance conveyor 51 can be rotated faster than usual and the molding time of the winding hand towel M can be shortened, the productivity of the winding hand towel M can be improved accordingly. Furthermore, since it is not necessary to increase the pressure of water to be sprinkled, it is not necessary to provide a high-performance water supply pump, and a low-grade water supply pump 83a is sufficient, and the apparatus cost can be reduced correspondingly.

  The heater 84 a heats water sprayed from the water spout 46 b of the water sprinkling case 43 to the sheet material S. Here, when a roller is provided instead of the extending rib 47e, the water heated by the heater 84a is sprinkled on the sheet material S through the roller. At that time, since the heat of water is conducted to the roller, the temperature of the water sprayed onto the sheet material S is lowered. Therefore, in order to set the water sprayed to the sheet material S to a desired temperature, the heater 84a has to heat the water more than necessary, and the power consumption increases accordingly. On the other hand, according to the rolled hand towel manufacturing apparatus 1 of the present embodiment, since the extending rib 47e is provided instead of the roller, the water heated by the heater 84a can be sprayed directly onto the sheet material S. Therefore, a reduction in thermal efficiency can be prevented and power consumption can be reduced.

  As described above, the present invention has been described based on the embodiment, but the present invention is not limited to the above-described embodiment, and various modifications can be easily made without departing from the gist of the present invention. It can be done.

  In the above embodiment, the extending ribs 47e have the same shape. However, the present invention is not necessarily limited to this, and the widths thereof may be different. Even in such a case, the extending ribs are formed in the same shape as viewed in the direction orthogonal to the conveying direction of the sheet material S, thereby restricting the skew of the sheet material S over the entire width direction of the sheet material S. be able to.

  Moreover, in the said embodiment, although the extended rib 47e was made into the curved shape which makes the conveyance conveyor 51 side convex, it is not necessarily restricted to this, You may form in the shape of a straight bar. Even in such a case, when the sheet material S comes into contact with the extending rib formed in the shape of a straight bar, the extending rib contacts only a part of the end portion in the conveyance direction of the sheet material S. Therefore, the resistance to the sheet material S that is about to pass between the water spray case 43 and the transport conveyor 51 can be reduced, so that the sheet material S can pass between the water spray case 43 and the transport conveyor 51 smoothly. Further, since this linear bar-shaped extending rib only presses a part of the sheet material S, even if a large amount of water remains on the conveyor belt 51a of the conveyor 51, the sheet material S is stuck on the conveyor belt 51a. Sticking can be prevented. Further, since the linear rib-like extending rib is not a rotating member such as a roller, there is little accumulation of dust, and a complicated maintenance work of removing the accumulated dust can be eliminated.

It is an external appearance perspective view of the winding hand towel manufacturing apparatus in one Embodiment of this invention. It is a sectional side view of a winding hand towel manufacturing apparatus. It is a disassembled perspective view which shows the components which comprise a watering case. (A) is a bottom view when the watering case is assembled, and (b) is a cross-sectional view showing a state where the through holes and nozzles of the watering case corresponding to the IVb-IVb line of (a) are closed. (C) is sectional drawing which shows the state by which the through-hole and nozzle of the watering case corresponding to the IVb-IVb line of (a) were open | released.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Rolling hand towel manufacturing apparatus 43 Sprinkling case 46b Sprinkling port 47e Extension rib 50 Forming apparatus 51 Conveyor 83a Water supply pump 84a Heater S Sheet material M Rolling hand towel

Claims (5)

A transport conveyor for transporting the belt-shaped sheet material, a feed pump for supplying liquid to the sheet material transported by the transport conveyor, and the transport conveyor while transporting the sheet material fed by the feed pump by the transport conveyor; In a winding hand towel manufacturing apparatus equipped with a forming device that jointly forms a wound roll-shaped hand towel,
A sheet material that is connected to the water supply pump and is opposed to the transport conveyor, and has one or a plurality of water spray ports for spraying the liquid supplied from the water feed pump, and is conveyed by the transport conveyor from the water spray port A watering case for spraying liquid in the width direction of
In order to press a part of the sheet material passing between the watering case and the conveyance conveyor, one or more extensions are provided between the watering case and the conveyance conveyor and are extended in the conveyance direction of the sheet material. A winding hand towel manufacturing apparatus comprising a mounting rib.   The winding hand towel manufacturing apparatus according to claim 1, wherein the extending rib is formed in a curved shape having a convex shape on the conveyor side.   A plurality of the extending ribs are provided, and the plurality of extending ribs are formed in the same shape in a direction perpendicular to the conveying direction of the sheet material, and are orthogonal to the conveying direction of the sheet material. The winding hand towel manufacturing apparatus according to claim 1 or 2, wherein   The sprinkling port of the said watering case is orient | assigned to the gravity direction, and is provided facing the said conveyance conveyor, The winding hand towel manufacturing apparatus in any one of Claim 1 to 3 characterized by the above-mentioned.   The said rolling hand towel manufacturing apparatus is equipped with the heater which heats the liquid sprayed to the sheet | seat material from the sprinkling port of the said sprinkling case, The winding towel manufacturing apparatus of Claim 4 characterized by the above-mentioned.

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