JPWO2006114851A1 - Rolling hand towel manufacturing equipment - Google Patents

Abstract

A rolling hand towel manufacturing apparatus capable of appropriately watering a sheet material is provided. In the normal state, the coil spring 42 pushes up the T-shaped rod 43, and the water supply valve 41 fixed to the lower end of the T-shaped rod 42 closes the water supply hole 49 d formed in the upper water spray case 49. On the other hand, when water is supplied into the cylindrical portion 49a and the pressure increases, the water supply valve 41 is pushed down against the biasing force of the coil spring 42, and the water supply hole 49d is opened. Therefore, as shown in FIG. 1, even if the position of the water supply hole 49d is arranged at a position lower than the water surface (level) of the water tank T, water is not always sent from the water supply hole 49d. Water is supplied from the water supply hole 49d only when the water supply pump 83a is activated to increase the water pressure.

Description

  The present invention relates to a wound hand towel manufacturing apparatus, and more particularly to a wound hand towel manufacturing apparatus for spraying a liquid on a sheet material.

  2. Description of the Related Art A winding hand towel manufacturing apparatus is known in which a sheet material is cut into a predetermined length, a liquid such as water is sprayed on the sheet material and wound into a roll shape to manufacture a wound hand towel.

  Japanese Utility Model Publication No. 5-33321 (Patent Document 1) discloses a winding hand towel manufacturing apparatus incorporating a watering mechanism for spraying a liquid such as water on a sheet material.

In this rolling hand towel manufacturing apparatus, as a means for imparting moisture necessary for hand toweling to a sheet material, a water sprinkling pipe provided with a plurality of water sprinkling holes in the vicinity of the sheet material feeding path is provided, and water is sent out by a pump. Therefore, water is sprayed on the sheet material.
Japanese Utility Model Publication No. 5-33321

  However, in the hand towel manufacturing apparatus described above, there is a problem that a large number of small watering holes provided in the watering pipe are clogged by scales or chlorine contained in the water. Therefore, it is conceivable to spray water on the sheet material by spraying water onto the roller and bringing the roller into contact with the sheet material immediately before the sheet material is rolled up. However, when the water supply hole for supplying water to the roller is disposed at a position lower than the level of water stored in the tank (water surface position), the water supply pump for water supply is not operating. However, there was a problem that water was supplied to the roller by the principle of siphon.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a winding hand towel manufacturing apparatus that can appropriately spray water on a sheet material.

  In order to achieve this object, the rolling hand towel manufacturing apparatus according to claim 1 is configured to feed a belt-shaped sheet material, and cut the sheet material fed by the feeding device into a predetermined length. Cutting means, a water tank for storing liquid, a water supply pump for pressurizing and supplying water to the liquid stored in the water tank, and a sheet material cut by the cutting means for supplying water supplied by the water supply pump Sprinkling means for spraying, and forming means for forming a wound towel by winding a sheet material on which the liquid is sprayed by the sprinkling means, and below the level of the liquid stored in the water tank A water supply hole formed in a water supply channel that is located downstream of the water supply pump and supplies water to the watering means, and when the water supply pump is not operating, the water supply hole is closed and the water supply If the pump is operating, and a water supply valve which opens the water supply hole by the liquid to be pressurized by the feed water pump.

  The rolled hand towel manufacturing apparatus according to claim 2 is the rolled hand towel manufacturing apparatus according to claim 1, wherein the water supply valve is biased by a spring to close the water supply hole and is pressurized by the water supply pump. The liquid opens the water supply hole against the urging force of the spring.

  The wound hand towel manufacturing apparatus according to claim 3, wherein the forming means has a transport belt for winding a sheet material into a roll shape, and the water spray means is a sheet material. A roller that winds the roller between the conveyor belt, roller holding means for holding the roller shaft so that the shaft can move in a direction in which the roller shaft is pressed or separated from the conveyor belt, and the roller shaft is pressed against the conveyor belt. And a pressing spring.

  The wound hand towel manufacturing apparatus according to claim 4 is the wound hand towel manufacturing apparatus according to any one of claims 1 to 3, wherein the water supply hole, the water supply valve, and the water spraying means are integrated to form a water spray section. The water sprinkling part has support shafts at both ends, and the support part for supporting the water sprinkling part and the support shaft of the water sprinkling part inserted into the support part are prevented from being detached from the support part, and an elastic body. A support member having a claw portion formed by the above-described structure, and the support shaft of the water sprinkling portion is inserted into the support portion by bending the claw portion of the support member.

  The rolling hand towel manufacturing apparatus according to claim 5 stores a feeding means for feeding a belt-shaped sheet material, a cutting means for cutting the sheet material fed by the feeding means into a predetermined length, and a liquid. A water tank, a water supply pump that pressurizes and supplies water to the liquid stored in the water tank, a watering means for spraying the liquid supplied by the water pump onto the sheet material cut by the cutting means, and the watering Forming means for winding a sheet material on which a liquid is dispersed by means into a roll shape to form a wound hand towel, wherein the forming means has a transport belt for winding the sheet material into a roll shape, and the water spray The means includes a roller for winding the sheet material between the conveying belt and a roller that holds the shaft of the roller so that the shaft can move in a direction in which the shaft is pressed against or separated from the conveying belt. It comprises a holding means, and a pressing spring for pressing the conveyor belt the axis of the roller.

  The hand towel manufacturing apparatus according to claim 6 stores a liquid, a feeding means for feeding a belt-shaped sheet material, a cutting means for cutting the sheet material fed by the feeding means into a predetermined length, and a liquid. A water tank, a water supply pump that pressurizes and supplies the liquid stored in the water tank, watering means for spraying the liquid supplied by the water supply pump onto the sheet material cut by the cutting means, and the watering means Forming means for winding the sheet material on which the liquid is dispersed in a roll shape to form a wound hand towel, wherein the watering means includes a roller for spraying the water supplied by the water supply pump onto the sheet material. A sprinkler having a support shaft in the longitudinal direction of the roller, and a support that supports the sprinkler, and a support shaft of the sprinkler inserted into the support is the support. And a support member having a claw portion formed of an elastic body, and the support shaft of the watering portion is inserted into the support portion by bending the claw portion of the support member. Is.

  According to the rolling hand towel manufacturing apparatus according to claim 1, a feeding unit that feeds the belt-shaped sheet material, a cutting unit that cuts the sheet material fed by the feeding unit into a predetermined length, and a liquid A water tank that stores water, a water supply pump that pressurizes and supplies water to the liquid stored in the water tank, and a watering means that sprays the liquid supplied by the water supply pump onto the sheet material cut by the cutting means, The sheet material sprayed with liquid by the watering means is provided in a roll shape to form a wet towel, the water supply hole is located below the level of the liquid stored in the water tank, The water supply valve is formed downstream of the water supply pump and supplies water to the sprinkling means. The water supply valve closes the water supply hole when the water supply pump is not operating, and the water supply pump when the water supply pump is operating. Opening the water supply hole by the liquid to be pressurized by the flop.

  Therefore, in a normal state where the water supply pump is not operating, it is possible to prevent the liquid stored in the water tank from flowing out, and when it is necessary to spray the liquid on the sheet material, the liquid is Can supply water. Therefore, there is an effect that water can be appropriately sprayed on the sheet material.

  According to the rolling hand towel manufacturing apparatus according to claim 2, in addition to the effect achieved by the winding towel manufacturing apparatus according to claim 1, the water supply valve is urged by a spring to close the water supply hole and is pressurized by the water pump. The liquid opens the water supply hole against the urging force of the spring, so that when the water supply pump is not operating, the liquid is prevented from flowing out, and the liquid is applied to the sheet material. There is an effect that the liquid can be supplied with a simple structure using inexpensive parts without using special parts.

  According to the hand towel manufacturing apparatus according to claim 3, in addition to the effect of the winding hand towel manufacturing apparatus according to claim 1 or 2, the forming means has a transport belt for winding the sheet material into a roll shape, , A roller for winding the sheet material between the conveying belt, a roller holding means for holding the shaft of the roller so that the shaft can move in a direction in which the shaft is pressed or separated from the conveying belt, and the roller shaft is pressed against the conveying belt When the sheet material is wound, when the leading edge of the sheet material is bent by the conveying belt and the roller, the roller is lifted upward against the urging force of the pressure spring, and the sheet material is Will be easier to curve. This has the effect of facilitating the formation of a core for winding up the sheet material into a roll.

  According to the rolling hand towel manufacturing apparatus according to claim 4, in addition to the effect of the rolling towel manufacturing apparatus according to any one of claims 1 to 3, the water supply hole, the water supply valve, and the water spraying means are integrally sprinkled. The sprinkling part has support shafts at both ends, and prevents the support part that supports the sprinkling part and the support shaft of the sprinkling part inserted into the support part from being detached from the support part. The support member having a claw portion formed of an elastic body is provided, and the support shaft of the watering portion is inserted into the support portion by bending the claw portion of the support member.

  Therefore, when the water sprinkling part is soiled by dirt or the like and is washed, there is no need to remove parts such as screws with a driver or the like, and there is an effect that the water sprinkling part can be attached and detached with a simple operation.

  According to the rolling hand towel manufacturing apparatus according to claim 5, a feeding means for feeding the belt-shaped sheet material, a cutting means for cutting the sheet material fed by the feeding means into a predetermined length, and a liquid A water tank that stores water, a water supply pump that pressurizes and supplies water to the liquid stored in the water tank, and a watering means that sprays the liquid supplied by the water supply pump onto the sheet material cut by the cutting means, Forming means for forming a wound hand towel by winding the sheet material sprayed with liquid by the watering means, the forming means having a transport belt for winding the sheet material into a roll shape, The means includes a roller for winding the sheet material between the conveying belt and a roller for holding the shaft of the roller so that the shaft can move in a direction in which the shaft is pressed against or separated from the conveying belt. Since the holding means and a pressing spring that presses the shaft of the roller against the conveying belt are provided, when the sheet material is rolled up, the roller is attached to the pressing spring when the leading edge of the sheet material is bent by the conveying belt and the roller. The sheet material is lifted upward against the force to facilitate the bending of the sheet material. This has the effect of facilitating the formation of a core for winding up the sheet material into a roll.

  The hand towel manufacturing apparatus according to claim 6 stores a liquid, a feeding means for feeding a belt-shaped sheet material, a cutting means for cutting the sheet material fed by the feeding means into a predetermined length, and a liquid. A water tank, a water supply pump that pressurizes and supplies the liquid stored in the water tank, watering means for spraying the liquid supplied by the water supply pump onto the sheet material cut by the cutting means, and the watering means And forming means for forming a wet hand towel by winding the sheet material on which the liquid is dispersed in a roll shape, and the watering means has a roller for spraying the water supplied by the water supply pump to the sheet material. The water sprinkling part having a support shaft in the longitudinal direction of the roller is configured, and the support part supporting the water sprinkling part and the support shaft of the water sprinkling part inserted into the support part are separated from the support part. Sealed, comprising a support member having a claw portion formed of an elastic material, the support shaft of the nozzle unit is intended to be inserted into the support portion by bending the pawl portion of the support member.

  Therefore, when the sprinkling part is soiled by dirt, etc., and cleaning is performed, there is no need to remove screws and other parts by using a tool such as a screwdriver, and the sprinkling part can be attached and detached with a simple operation. There is.

It is a perspective view of the winding hand towel manufacturing apparatus in one Example of this invention. It is side surface sectional drawing of a wound towel manufacturing apparatus. It is a disassembled perspective view of a watering part. It is an exploded view which shows the structure of a water supply hole. It is a figure which shows the bearing part of the watering roller formed in the lower watering case, (a) is a top view, (b) is CC sectional view taken on the line in (a). It is a figure which shows the side plate with which a watering part is hold | maintained, (a) is a top view, (b) is the DD sectional view taken on the line of (a). It is the block diagram which showed the electrical structure of the control circuit. It is a flowchart which shows a main process.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Rolling hand towel manufacturing apparatus 2 Main body 3 Upper cover 8 Side plate 8b Support part 8c Claw part 10 Roll holding part 20 Sheet material feeding part (feeding means)
23 Driving roller 24 Auxiliary roller 25 Pressing roller 30 Cutting part (cutting means)
40 Watering part (watering means)
41 Water supply valve 42 Coil spring 43 T-shaped rod 46 Coil spring (pressing spring)
48 Watering roller 49d Water supply hole 50b Support shaft 50e Groove (Roller holding means)
60 Molding part 83a Water supply pump M Rolling hand towel S Sheet material T Water tank

  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 wound towel manufacturing apparatus 1 according to an embodiment of the present invention, and illustrates the wound towel manufacturing apparatus 1 with the upper cover 3 removed. First, with reference to this FIG. 1, the external appearance structure of the winding hand towel manufacturing apparatus 1 is demonstrated.

  A rolled hand towel manufacturing apparatus 1 is a device for manufacturing a wound hand towel M (see FIG. 2) using a sheet material made of paper, non-woven fabric, chemical fiber pulp, etc. As shown in FIG. The upper cover 3 is mainly provided.

  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. As shown in FIG. 1, the upper part of the main body 2 (upper side in FIG. 1) is configured to be opened, and the opening can be closed by the upper cover 3.

  The upper cover 3 is rotatably supported by a pair of concave grooves 2 a having a pair of opening and closing shafts 3 a recessed in the main body 2. Moreover, since the opening part is opened by the one end side (FIG. 1 left side) of the ditch | groove 2a, the upper cover 3 can be easily removed from the main body 2 by extracting the opening-and-closing axis | shaft 3a from the ditch | groove 2a. .

  Therefore, when exchanging the towel roll R and the water tank T, which will be described later, the upper cover 3 is rotated with the shaft groove of the groove 2a and the opening / closing shaft 3a as a fulcrum, and the upper part of the main body 2 is opened On the other hand, when the space for rotating and opening the upper cover 3 cannot be secured above (on the upper side in FIG. 1) of the hand towel manufacturing apparatus 1, as shown in FIG. It is also possible to remove the work.

  An operation panel 4 for a user to perform various operations is provided on the front side of the main body 2 (left side in FIG. 1). The operation panel 4 is provided with various buttons such as a start / stop button 4a, and various operations are performed by pressing these buttons. Further, the operation panel 4 is provided with various display devices such as a 7-segment LED 4b, and the setting status of the hand towel manufacturing device 1 and various operation messages are displayed as necessary. For example, when a plurality of hand towels M are manufactured on the 7-segment LED 4b, the remaining number of manufactured hands is displayed in a countdown manner.

  An opening 2b is formed below the operation panel 4 (lower side in FIG. 1), and a tray serving lid 5 is disposed in the opening 2b so as to be openable and detachable. In the open state, the tray / lid 5 is configured so that a plurality of wound towels M can be placed on the upper surface side thereof (see FIG. 2), and the manufactured wound towel M is contained in the wound towel manufacturing apparatus 1. Is discharged onto the pan / cap 5 and provided to the user.

  A sub-panel (not shown) is provided on the front surface of the main body 2 on which the operation panel 4 is arranged, and a switch for switching between a single mode and a continuous mode and a length of the sheet material S for creating a single hand towel are set. A rotary switch or the like is provided.

  As will be described later, a plurality of members and devices are accommodated in the internal space of the main body 2 (see FIG. 2). The towel roll R, the sheet material feeding unit 20, and the water tank T are: As shown in FIG. 1, it is disposed near the opening of the main body 2 in consideration of workability such as replacement.

  The towel roll R is obtained by bonding the end of a sheet material S (see FIG. 2), which is a material of the wound hand towel M, to the core and winding it in a roll shape. As shown in FIG. It is detachably held on the side (left front side in FIG. 1), that is, on the side opposite to the shaft support side (right rear side in FIG. 1) of the upper cover 3. Therefore, even when the upper cover 3 is half-opened, the front side of the main body 2 can be greatly opened to secure a sufficient working space above the towel roll R, so that the replacement work can be performed smoothly. Can do.

  The sheet material feeding unit 20 is a driving device for pulling out the sheet material S from the towel roll R, and in order to pull out the sheet material S toward the back side of the main body 2 (see FIG. 2), the main body is more than the towel roll R. 2 on the back side. The water tank T is a container for storing water for imparting moisture to the wound towel M, and is detachably disposed on the back side of the main body 2.

  Next, with reference to FIG. 2, an internal configuration of the wound towel manufacturing apparatus 1 will be described. FIG. 2 is a side cross-sectional view of the hand towel manufacturing apparatus 1 and schematically shows only the main configuration for easy understanding. For example, in FIG. 2, illustration of a part of the water supply hose 52 and various motors is omitted.

  The rolled hand towel manufacturing apparatus 1 is mainly composed of a roll holding unit 10, a sheet material feeding unit 20, a cutting unit 30, a watering unit 40, and a forming unit 60. The roll holding means 10 is for rotatably holding the towel roll R, and mainly includes a storage chamber 11, a support groove 12, and a guide groove 13.

  The storage chamber 11 is a member for storing the towel roll R. As shown in FIG. 2, the storage chamber 11 is formed in a substantially U shape when viewed from the side and is open at the top (upper side in FIG. 2). The towel roll R is stored in a storage space formed by the storage chamber 11, and is covered by an upper cover 3 that is covered from above the storage space.

  The storage chamber 11 is detachably attached to the main body 2. That is, the storage chamber 11 is configured as a substantially box-shaped body that is open at the top, and can be removed from the main body 2 by pulling the box-shaped body upward (upward in FIG. 2). This box-like shape is fitted into the inner side surface of the main body 2 with the back side of a guide groove 13, which will be described later, projecting on both side surfaces of the box-like body (the back side and the near side in FIG. 2). By pushing the body downward (downward in FIG. 2), the body is mounted in the main body 2 (see FIG. 1).

  Therefore, in the case where a problem occurs in the wound hand towel forming portion 60 or the like disposed in the lower portion of the storage chamber 11, there is an effect that the storage chamber 11 can be easily repaired by removing the storage chamber 11.

  The support groove 12 is a part for rotatably holding the towel roll R, and a pair of side wall portions of the storage chamber 11 facing each other outside both end faces of the towel roll R (the front side and the back side of the paper surface in FIG. 2). As shown in FIG. 2, it is recessed in a substantially arc shape in a side view. The towel roll R is rotatably held in the storage chamber 11 by loosely fitting a pair of roll rotation guides Ra inserted into the core of the towel roll R into the support groove 12.

  As shown in FIG. 2, a guide groove 13 extends linearly upward from the support groove 12. The guide groove 13 guides the roll rotation guide Ra inserted into the core of the towel roll R from the opening of the main body 2 to the support groove 12, and the roll rotation guide Ra is pulled out of the sheet material S (FIG. 2). The first and second side wall members 13a and 13b are provided so as to be opposed to each other with a predetermined interval therebetween.

  Therefore, when the towel roll R is exchanged, the roll rotation guide Ra can be guided by the guide path formed between the first and second side wall members 13a and 13b of the guide groove 13, so that the support groove 12 is moved to. The attachment / detachment work of the towel roll R can be facilitated, and the attachment work and the removal work of the towel roll R can be facilitated.

  Further, the upper end of the guide groove 13 (first and second side wall members 13a, 13b) is formed at substantially the same height as the upper end edge of the storage chamber 11, that is, the opening of the main body 2 (FIG. 1). 2), as shown in FIG. 2, the width of the guide path at the upper end is widened in a tapered shape. Therefore, for example, even when the upper cover 3 cannot be fully opened and the guide groove 13 cannot be visually recognized, the roll rotation guide Ra can be easily inserted into the guide groove 13. As a result, the towel roll R can be easily attached.

  Further, as shown in FIG. 2, the standing direction of the second side wall member 13b is substantially vertical from the support groove 12 upward (upward in FIG. 2), so that the sheet material S reaches the end. A predetermined crossing angle can be formed between the sheet material S and the direction in which the roll rotation guide Ra is attracted (in the upper right direction from the support groove 12 toward the drive roller 23 in FIG. 2). As a result, the movement of the roll rotation guide Ra can be reliably restricted by the amount of the crossing angle. Therefore, when the sheet material S of the towel roll R reaches the end, the restriction by the second side wall member 13b. By the action, the rotational resistance of the driving roller 23 can be increased, and a current (overcurrent) of a predetermined value or more can be surely passed through the feed motor 81a (see FIG. 7).

  As shown in FIG. 2, the second side wall member 13 b does not necessarily have to extend substantially vertically upward. For example, the second side wall member 13 b has a substantially “<” shape in a side view (or an inverted “<” shape). ) May be bent. Thereby, the movement of the roll rotation guide Ra can be more reliably regulated by the inclined portion or the bent portion of the second side wall member 13b. Alternatively, a locking projection may be provided on the surface of the second side wall member 13b so as to project toward the first side wall member 13a. In this case as well, the roll rotation guide Ra can be locked and its movement can be reliably regulated.

  The feeding unit 20 pulls out the sheet material S from the towel roll R rotatably held by the roll holding unit 10 described above, and feeds the drawn sheet material S to a cutting unit 30 and a watering unit 40 described later. As shown in FIG. 2, the apparatus mainly includes a cover member 22, a drive roller 23, an auxiliary roller 24, and the like.

  The cover member 22 is a member for guiding the sheet material S drawn from the towel roll R by a driving roller 23 and the like, which will be described later, in a predetermined direction, and as shown in FIG. 2, the upstream side (left side in FIG. 2). Is formed substantially horizontally, while the downstream side (the right side in FIG. 2) is formed in an arc shape along the outer periphery of the drive roller 23. A gap between the cover member 22 and the driving roller 23 is a conveyance path for the sheet material S. The sheet material S is guided downward by passing through this conveyance path, and is fed to the cutting unit 30 and the watering unit 40 described later.

  A plurality of ribs extending in the feeding direction protrude from the curved surface of the cover member 22 that forms the conveyance path. Since the friction resistance with the sheet material S can be reduced by the rib, the sheet material S can be stably fed.

  The drive roller 23 and the auxiliary roller 24 are members for pulling out the sheet material S from the towel roll R and feeding the pulled sheet material S to the cutting means 30 and the water sprinkling unit 40 which will be described later through the above-described conveyance path. These are arranged so as to be able to sandwich the sheet material S as shown in FIG.

  The drive roller 23 is a rotating member that is driven by the above-described feed motor 81a (see FIG. 7), and is configured by surrounding a rubber ring-like body on the outer peripheral surface thereof. Note that a plurality (four in the present embodiment) of the link-like bodies are arranged with a predetermined interval in the width direction of the sheet material S (the vertical direction in FIG. 2). On the other hand, the auxiliary roller 24 is configured as one substantially rod-shaped body made of a metal material such as stainless steel, and both end sides thereof are rotatably supported by the cover member 22.

  Here, the cover member 22 is rotatably supported on the main body 2 by a shaft 22a and is urged in the direction of the drive roller 23 (counterclockwise in FIG. 2) by a torsion spring (not shown). Therefore, the auxiliary roller 24 can be urged toward the driving roller 23 by the urging force of the torsion spring, and the sheet material S can be pressed against the driving roller 23. Therefore, the sheet material S can be reliably moved without sliding. Can be transported.

  Further, even when the sheet material S of the towel roll R reaches the end and the pull-out resistance of the sheet material S increases, the sliding of the driving roller 23 with respect to the sheet material S can be prevented. And an overcurrent can be reliably generated in the feed motor 81a (see FIG. 7). As a result, it is reliably detected that the sheet material S of the towel roll R has reached the end.

  Note that the urging force of the torsion spring that urges the cover member 22 toward the drive roller 23 is preferably about 50 g to about 250 g, and is set to about 150 g in this embodiment. This is because when the urging force is less than about 50 g, the sheet material S cannot be sufficiently pressed against the driving roller 23 and the driving roller 23 may slide with respect to the sheet material S. On the other hand, if it exceeds approximately 250 g, the rotational resistance of the drive roller 23 increases, and an excessive load acts on the feed motor 81a, so that an overcurrent may be erroneously detected.

  The cutting unit 30 is a device for cutting the sheet material S hanging downward (downward in FIG. 2) from the above-described sheet material feeding unit 20 with a predetermined length, and mainly includes the fixed blade 31 and the rotary blade 32. I have. The fixed blade 31 extends in the width direction of the sheet material S (vertical direction in FIG. 2), and the rotary blade 32 is rotatable at a position facing the fixed blade 31 with the sheet material S interposed therebetween. It is supported. The rotary blade 32 is connected to a cutting motor 82a (see FIG. 7) via a connecting gear (not shown), and the rotary blade 32 is counteracted by rotating the cutting motor 82a at a predetermined timing. The sheet material S rotated clockwise (leftward in FIG. 2) and sandwiched between the fixed blade 31 is cut at a position of a predetermined length from the tip.

  The water sprinkling unit 40 scatters the water supplied from the tank storage chamber 81, the water supply pump 83 a, and the heater 84 a constituting the water supply unit 80 to the sheet material S.

  The tank storage chamber 81 is a member for detachably storing the water tank T, and is disposed on the back side (the right side in FIG. 2) of the main body 2 with respect to the sheet material feeding unit 20. The water tank T is stored in the tank storage chamber 81 in an inverted state, and the water supply hole Tm is communicated with the water supply pump 83a through the pump water suction pipe.

  Thus, since the water tank T is arrange | positioned rather than the sheet | seat material supply part 20 and the watering part 40 mentioned later on the back side (FIG. 2 right side) of the main body 2, as shown in FIG. Even when the sheet material S is pulled out from R by the feeding unit 20, the water tank T can be replaced in this state. Therefore, even when only the water tank T is exchanged because the water tank T and the towel roll R do not coincide with each other, the sheet material feeding unit 20 once pulls out the water tank T from the main body 2. Therefore, it is possible to eliminate the troublesome work of rewinding the sheet material S.

  As shown in FIG. 2, the discharge port of the water supply pump 83 a is connected to the heater 84 a and the water sprinkling unit 40 via the water supply hose 52. The heater 84a is configured to be able to hold (store) a predetermined amount of water in the internal storage chamber, and when the heater switch (not shown) is turned on, the water in the storage chamber is heated and controlled. Maintain a predetermined temperature. The warm water heated in the heater 84a is sprinkled from the water sprinkling part 40 to the sheet material S.

  The heater 84a can be configured to cool water using a Peltier element or the like. Further, in this embodiment, the feed water pump 83a is arranged on the upstream side of the heater 84a, but instead, it is possible to arrange the feed water pump 83a on the downstream side of the heater 84a. That is, the pumping force of the water supply pump 83a is applied as a suction force to the heater 84a, and the water sucked up from the heater 84a is pumped to the water supply hose 52.

  The water sprinkling unit 40 is disposed on the front end side (right side in FIG. 2) of the cover member 62 constituting the molding unit 60 and on the top end of the conveyance belt 61 of the molding unit 60. The water sprinkling unit 40 is provided with a water sprinkling roller 48 and is disposed so as to come into contact with the transport surface of the transport belt 61. When the conveyance belt 61 is driven and the sheet material S is conveyed on the conveyance belt 61, the watering roller 48 is rotated along with the conveyance of the sheet material S to spray water on the sheet material. In addition, the detail of the water sprinkling part 40 is mentioned later.

  One sheet material S that has been wetted by the sprinkler 40 and cut to a predetermined length by the cutting means 30 is conveyed toward the downstream side (left side in FIG. 2) on the conveying belt 61 of the forming unit 60. The

  The forming unit 60 is an apparatus for forming the sheet material S into a cylindrical winding hand towel M, and mainly includes a conveyance belt 61, a cover member 62, and a reversing ring 63.

  The winding hand towel manufacturing apparatus 1 according to the present embodiment is configured to form the winding hand towel M only on one side surface (upper side in FIG. 2) of the conveyor belt 61. Therefore, as described above, even when the sheet material S is pulled out toward the back surface side of the main body 2 due to the towel roll R being disposed on the front surface side of the main body 2, the molding processing path of the sheet material S is used. The hand towel M can be discharged from the front side of the main body 2 on which the operation panel 4 is disposed, and as a result, the hand towel manufacturing apparatus 1 can be reduced in size while being user-friendly. A good hand towel manufacturing apparatus 1 can be provided.

  Here, an outline of a process of forming the sheet material in the forming unit 60 into a roll shape will be described. The conveyor belt 61 is a rubber flat belt having a plurality of protrusions in the entire outer peripheral surface, and is stretched between a pair of rotating rollers 61a that are rotatably supported. A cover member 62 is disposed on the upper conveying surface of the conveying belt 61 so as to face the conveying belt 61.

  The cover member 62 is formed obliquely so that the upstream portion (right side in FIG. 2) can easily introduce the sheet material S, and is supported to be swingable about the shaft 62c. Further, the substantially central portion of the cover member 62 is configured such that a biasing force acts in the direction of the conveyor belt 61 by a spring.

  A plurality of protrusions 62 a are formed on the cover member 62 so as to protrude in the shape of a washing plate between the surfaces facing the conveyor belt 61. Therefore, an appropriate frictional force can be applied to the sheet material S conveyed by the conveyance belt 61 to surely cause the entanglement nucleus at the tip of the sheet material S, and the induced nucleus is caused by the cover material 62. Large growth can be achieved by movement of the conveyor belt 61 while the conveyor belt 61 is pressed by an appropriate pressure. As a result, the sheet material S can be reliably wound in a roll shape centering on such a core, and molding defects can be suppressed.

  On the downstream side (left side in FIG. 2) of the cover member 62, an inclined member 62b is extended and inclined in the conveying direction of the sheet material S (left direction in FIG. 2). The inclined members 62b are members that hold the sheet material S during roll forming, and a plurality of the inclined members 62b are arranged in a substantially comb shape with a predetermined interval in the width direction of the conveying belt 61. In addition, a washing plate-like protrusion is provided on the lower surface side of the inclined member 62b in the same manner as the protrusion 62a.

  A plurality of reversing rings 63 are disposed between the adjacent ones of the conveyor belts 61. The reversing ring 63 is a rubber ring whose cross section is in contact with the sheet material S, and is formed between a pair of rotating rollers 63a that are rotatably supported by the case. The sheet material S is disposed so as to face the conveying belt 61 so as to wind the sheet material S in a roll shape in cooperation with the belt 61.

  Both ends of the rotation roller 63a positioned on the sheet material S conveyance direction side (left side in FIG. 2) of the pair of rotation rollers 63a are formed so as to be swingable along vertical grooves formed in the case in the vertical direction.

  Therefore, when the sheet material S is wound in a roll shape, the reversing ring 63 can be moved upward as the roll diameter increases, and the rise of the rotation roller 63a is suppressed by the inclined member 62b. Therefore, irrespective of the thickness of the sheet material S and the sheet length, the winding hand towel M can be formed smoothly and reliably.

  A pulley (not shown) is pivotally attached to one end (upper side in FIG. 2) of the rotating roller 61a on which the conveyor belt 61 is installed, and this pulley is driven by a conveyor motor 85a (see FIG. 7). When the transport motor 85a is rotated, the rotation is transmitted through the pulley, and as a result, the transport belt 61 is rotated counterclockwise (counterclockwise in FIG. 2).

  On the other hand, another pulley (not shown) is pivotally attached to one end side (right side in FIG. 2) of the rotating roller 63a on which the reversing ring 63 is installed, and is driven by a reversing motor 86a (see FIG. 7). When the reversing motor 86a is rotated, the rotation is transmitted to the pulley of the roller 63a via the pulley. As a result, the reversing ring 63 is rotated clockwise (clockwise in FIG. 2), that is, opposite to the conveying belt 61. Rotated in the direction.

  As a result, the sheet material S has a core of entrainment at the front end between the opposed surfaces of the conveyor belt 61 and the cover member 62, and the lower surface side of the inclined member 62 b between the opposed surfaces of the reversing ring 63. While being held in the roll, it is formed into a cylindrical wound towel M by being wound in the form of a roll around the induced nucleus.

  The opposed surfaces of the reversing ring 63 and the conveyor belt 61 are moved in directions opposite to each other at substantially the same speed. Accordingly, the sheet material S can be wound in a roll shape while being held on the lower surface side of the inclined member 62b, and accordingly, the processing path length (the conveyor belt 61 and the reverse ring 63) is shortened, and the molding unit 60 is reduced in size. Can be achieved. Further, since the relative speed difference between the opposing surfaces becomes large, the winding speed of the sheet material S can be increased, and the molding time of the winding hand towel M can be shortened accordingly.

  Next, with reference to FIGS. 3-6, the detail of the watering part 40 is demonstrated. 3 is an exploded perspective view showing components constituting the water sprinkling unit 40, FIG. 4 is a side view and a cross-sectional view for explaining the water supply holes in detail, and FIG. FIG. 6 is a diagram showing a portion of the case 49, and FIG.

  The water sprinkling unit 40 includes a water supply hole case 45, a packing 44, a T-shaped rod 43, a coil spring 42, a water supply valve 41, an upper watering case 49, a nozzle case 47, a watering roller 48, and a lower watering case. 50.

  The water supply hole case 45 receives water supplied from the water supply pump 83 a through the water supply hose 52, and one end of the water supply hose 52 is attached to a water supply hose attachment pipe 45 a formed at the center of the water supply hole case 45. . The water supply hole case 45 is formed of resin, and the water supply hose 52 is formed of highly flexible rubber.

  The inner diameter of the water supply hose 52 is smaller than the outer shape of the water supply hose attachment pipe 45a, and the inner diameter of one end of the water supply hose 52 can be widened and attached to the water supply hose attachment pipe 45a. The water supply hose is in close contact with the water supply hose attachment pipe 45a, and water does not leak from the attached portion. The water supply hole case 45 is formed in a substantially cylindrical shape, and screw holes 45b are formed on three sides of the outer shape thereof.

  The packing 44 is assembled by being sandwiched between the water supply hole case 45 and the cylindrical portion 49 a of the upper water spray case 49, formed in a ring shape with rubber, and the outer periphery of the water supply hole case 45 is assembled to the upper water spray case 49. When this is done, water is prevented from leaking between them.

  The packing 44 has a ring-shaped ring portion 44a and a screw hole 44b in the same manner as the water supply hole case 45 on the outer periphery of the ring portion 44a. The water supply hole case 45 sandwiches the packing 44 and is assembled to the upper water spray case with three screws. These three screws are inserted into a screw hole 45 b formed in the water supply hole case 45 and a screw hole 44 b formed in the packing 44, and are screwed into a screw hole 49 e formed in the upper water spray case 49.

  The T-shaped rod 43, the coil spring 42, and the water supply hole valve 41 constitute a valve that opens and closes a water supply hole 49d (see FIG. 4) formed in the upper water spray case 49. The T-shaped rod 43 is formed in a substantially cylindrical shape, and has a flange portion 43a at the upper portion. The flange portion 43a abuts on the upper end of the coil spring 42 when assembled.

  On the other hand, a flange portion 43c having a diameter smaller than the diameter of the flange portion 43a is formed at the lower end of the T-shaped rod 43 with a small-diameter groove therebetween. The flange portion 43c is fixed to a recess 41b formed in the water supply valve 41 when assembled.

  The T-shaped rod 43 is made of resin (or stainless steel), and the water supply valve 41 is made of rubber (silicone rubber). The concave portion 41b of the water supply valve 41 has a narrow inlet portion and a wide inside portion, and a flange portion 43c at the lower end of the T-shaped rod 43 can be attached and fixed to a wide inside portion. .

  The upper water spray case 49 has a substantially rectangular parallelepiped appearance, a cylindrical portion 49a is formed at the center thereof, screw holes 49f are formed at the four corners of the upper surface, and a coil spring 46 is engaged at the lower portions of both ends. A spring locking portion 49g to be stopped is formed.

  As shown in FIG. 3, three screw holes 49e are formed on the outer periphery of the upper surface of the cylindrical portion 49a. The cylindrical portion 49a further has an inner cylinder 49c inside as shown in FIG. The inside of the inner cylinder 49c is a through-hole, and the shaft 43b of the T-shaped rod 43 is inserted, and the T-shaped rod 43 slides up and down in the through-hole.

  The outer diameter of the inner cylinder 49c is smaller than the inner diameter of the coil spring 42, and is inserted into the coil spring 42 when assembled. The outer periphery of the lower surface of the inner cylinder 49c is connected to the cylindrical portion 49a, and a plurality of water supply holes 49d are formed between the inner periphery of the cylindrical portion 49a and the outer periphery of the cylinder 49c on the connection surface.

  The lower surface of the connection surface in which the water supply hole 49d is formed is formed in a gently inclined taper shape, and the upper surface of the water supply valve 41 is formed so as to match the tapered portion.

  When the T-rod 43, the coil spring 42, and the water supply valve 41 are assembled to the upper water spray case 49, the coil spring 42 is first inserted into the outer periphery of the inner cylinder 49c of the upper water spray case 49, and the upper end of the coil spring 42 is The shaft portion 43b of the T-shaped rod 43 is inserted into the inside of the cylinder 49c in contact with the flange portion 43a of the T-shaped rod 43.

  Next, the T-shaped rod 43 is pushed down while compressing the coil spring 42, and the flange 43c at the lower end of the T-shaped rod 43 protrudes from the lower surface of the cylindrical portion 49a. In this state, the recess 41b of the water supply valve 41 is formed on the flange 43c. Stick. The flange 43c and the recess 41b may be fixed by an adhesive or the like.

  By assembling in this way, in a normal state, the coil spring 42 pushes up the T-shaped rod 43, and the water supply valve 41 fixed to the lower end of the T-shaped rod 43 closes the water supply hole 49 d formed in the upper water spray case 49. To do.

  On the other hand, when water is supplied into the cylindrical portion 49a and the pressure increases, the water supply valve 41 is pushed down against the biasing force of the coil spring 42, and the water supply hole 49d is opened. Therefore, as shown in FIG. 1, even if the position of the water supply hole 49d is arranged at a position lower than the water surface (level) of the water tank T, water is not always sent from the water supply hole 49d. Water is supplied from the water supply hole 49d only when the water supply pump 83a is activated to increase the water pressure.

  The upper water spray case 49 has screw holes 49f at four corners of the rectangular parallelepiped, and is assembled to the four screw holes 50c formed in the lower water spray case 50 that is also formed in a substantially rectangular parallelepiped. When these are assembled, a space is formed between the upper watering case 49 and the lower watering case 50, and two coil springs 46, a nozzle case 47, and a watering roller 48 are accommodated in this space. The

  The nozzle case 47 is a substantially rectangular parallelepiped, and has a wall 47a with a uniform thickness on the outer periphery, and is formed in a container shape with the top open. The nozzle case 47 has a cylindrical portion 47c that surrounds the lower end of the cylindrical portion 49a of the upper water spray case 49 at the center in the longitudinal direction, and a plurality of nozzles 47b are formed in a straight line on the bottom plate in the longitudinal direction. Yes. These nozzles 47b have a diameter larger than that of a conventional nozzle that injects water because it is not necessary to inject water.

  The watering roller 48 has a cylindrical roller portion 48a, and a shaft portion 48b having a diameter smaller than the roller portion 48a and having the same shaft center at both ends of the roller portion 48a, and is made of stainless steel. ing.

  The water fed from the water supply hole 49d formed in the upper water spray case 49 is supplied to the cylindrical portion 47c of the nozzle case 47 and is sprayed from the nozzle 47b to the water spray roller 48. The longitudinal dimensions of the nozzle case 47 and the watering roller 48 are substantially equal to the lateral width of the transport belt 61.

  The lower water spray case 50 is a substantially rectangular parallelepiped, and has a box-shaped container part 50a and a support shaft 50b having a substantially square cross section supported by the side plate 8 (see FIG. 6). The nozzle case 47 and the watering roller 48 are accommodated in the part 50a.

  Next, with reference to FIG. 5, the part of the lower water spray case 50 which pivotally supports the water spray roller 48 will be described. Fig.5 (a) is a top view of the part by which the axial part 48b of the watering roller 48 is pivotally supported, and FIG.5 (b) is CC sectional view taken on the line of Fig.5 (a). As shown in these drawings, substantially U-shaped grooves 50e are formed at both ends in the longitudinal direction of the lower water spray case 50, and between the grooves 50e at both ends, along the longitudinal direction of the lower water spray case 50. An opening 50d is formed.

  A shaft portion 48b of the water spray roller 48 is inserted into the inner lower end of the groove 50e, and a coil spring 46 that urges the shaft portion 48b downward is disposed vertically inside the groove 50e. The lower end of the coil spring 46 is in contact with the shaft portion 48 b of the watering roller 48, and the upper end of the coil spring 46 is locked to a spring locking portion 49 g formed in the upper watering case 49.

  Further, an arc on the lower side of the roller portion 48 a of the watering roller 48 protrudes from an opening 50 a formed in the lower portion of the lower watering case 50.

  In the sprinkler 40, the sprinkler roller 48 is mounted in the lower sprinkler case 50, the two coil springs 46 abut against the shaft portions 48 b at both ends of the sprinkler roller 48, and the upper end of the coil spring 46 is the spring of the upper sprinkler case 49. The nozzle case 47 is disposed on the upper part of the watering roller 48 in a state of being locked to the locking part 49g, and the upper watering case 49 and the lower watering case 50 are assembled by being screwed with screws.

  When the water sprinkling portion 40 is assembled to the main body 2, the roller portion 48 a of the water sprinkling roller 48 protrudes downward from the opening portion 50 d formed in the bottom surface of the lower water sprinkling case 50, and comes into contact with the transport belt 61. Accordingly, when the conveying belt 61 is driven, the watering roller 48 is rotated, the sheet material S is sandwiched and sent, and the water supplied from the water supply hole 49 d is sprinkled onto the sheet material S by the rotation of the watering roller 48.

  At that time, the sheet material S is sandwiched between the conveying belt 61 and the watering roller 48 and is sent out along the conveying belt 61. The core of the sheet material S is bent and the sheet material is wound in a roll shape. Becomes easier to form. In particular, the sheet material is pressed up and down by the unevenness formed on the conveyor belt 61, and the water spray roller 48 moves up and down in the groove 50 e by the bias of the coil spring 46. As a result, unevenness is generated at the end of the sheet material S, and it is easy to form a core that rolls up in a roll shape.

  Next, with reference to FIG. 6, the side plate 8 in which the water sprinkling part 40 is supported by the main body 2 is demonstrated. 6A is a front view of the side plate 8 formed inside the main body 2, and FIG. 6B is a cross-sectional view taken along the line DD in FIG. 6A. The side plate 8 is disposed on both inner side surfaces of the main body 2, and FIG. 6 shows the side plate 8 disposed on the left side when viewed from the operation panel 4. The side plate 8 disposed on the right side when viewed from the operation panel 4 is symmetrical with respect to a vertical center line of the operation panel 4.

  The side plate 8 is provided with a substantially U-shaped support portion 8b into which a support shaft 50b having a substantially square cross section formed in the lower water spray case 50 is inserted in the flat plate 8a of the side plate. Further, below the support portion 8b, a molding portion holding groove 8d into which the molding portion 60 is inserted and held is formed.

  The molding part 60 is inserted along the molding part holding groove 8d, and is configured so that it can be easily attached and detached along the molding part holding groove 8d when a problem occurs.

  A protrusion 8e is formed from the side plate 8 so as to protrude from the flat plate 8a, and a claw 8c extending in a direction opposite to the U-shape of the support 8b is formed on the protrusion 8e. The tip of the claw portion 8c is located at the upper left end of the support portion 8b, and the claw portion 8c is formed of an elastic resin.

  As shown by a two-dot chain line in FIG. 6 (b), the sprinkling part 40 is inserted into the U-shaped support part 8b, with the support shaft 50b of the lower sprinkling case 50 bending the claw part 8c upward, When the support shaft 50b is inserted into the support portion 8b, the claw portion 8c is restored to prevent the support shaft 50b from being detached from the support portion 8b. The surface of the lower water spray case 50 on which the support shaft 50b is formed contacts the side surface of the claw portion 8c, and the position of the water spray portion 40 in the longitudinal direction is restricted.

  As described above, since the water sprinkling part 40 is supported by the side plate 8 of the main body 2, when the water sprinkling part 40 is stained by dirt or the like, the water sprinkling part 40 is attached or detached by bending the claw part 8 c upward. can do. Therefore, it can be easily detached from the main body 2 and cleaned without removing the fastening means such as screws.

  Next, with reference to FIG. 7, the electrical configuration of the hand towel manufacturing apparatus 1 will be described. FIG. 7 is a block diagram schematically showing the electrical configuration of the hand towel manufacturing apparatus 1. The control circuit C includes a CPU 71, ROM 72, RAM 73, various drive circuits 81 to 86, various control circuits 87 and 88, and these are connected to each other via a bus line 74. These control circuits are formed on a printed wiring board and housed inside the main body 2 (not shown).

  The CPU 71 is an arithmetic device that controls each part connected by the bus line 74 in order to execute the production of the winding hand towel M by the winding hand towel manufacturing apparatus 1. The ROM 72 is a non-rewritable memory storing a control program executed by the CPU 71, fixed value data, and the like, and the RAM 73 is a memory for storing various data in a rewritable manner when the control program is executed.

  Here, as shown in FIG. 7, the CPU 71 includes an interrupt terminal 71a. The interrupt terminal 71a is configured to receive a detection signal 93 output from the overcurrent detection circuit 81b when a current (overcurrent) of a specified value or more flows in the feed motor 81a. When the overcurrent is detected, the overcurrent detection process (interrupt process) is immediately executed.

  The feed motor drive circuit 81 is a circuit for driving and controlling the feed motor 81a based on an instruction from the CPU 71, and the feed motor 81a applies a rotational force to the drive roller 23 (see FIG. 2). Motor. By driving the feeding motor 81a, the driving roller 23 is rotated by a predetermined number of rotations, and the sheet material S is pulled out from the towel roll R by a predetermined length.

  The feed motor drive circuit 81 includes an overcurrent detection circuit 81b. The overcurrent detection circuit 81b is a circuit for outputting a detection signal 93 to the interrupt terminal 71a of the CPU 71 when an overcurrent flows through the feed motor 81a. The overcurrent detection circuit 81b monitors the value of the current flowing through the feed motor 81a, determines that an overcurrent has occurred when the current value exceeds a specified value, and outputs a detection signal 93 to the CPU 71. It is configured.

  Note that the fact that an overcurrent has flowed through the feeding motor 81a means that the sheet material S of the towel roll R has reached the end. That is, as will be described later, the roll rotation guide Ra inserted into the center of the towel roll R is restricted by the second side wall member 13b of the guide groove 13 from moving in the drawing direction of the sheet material S (see FIG. 3). Therefore, when the sheet material S of the towel roll R reaches the end, the rotational resistance of the driving roller 23 increases due to the increase in the drawing resistance of the sheet material S. As a result, when the load of the feed motor 81a increases, a current (overcurrent) greater than a specified value flows through the feed motor 81a.

  The cutting motor drive circuit 82 is a circuit for driving and controlling the cutting motor 82 a based on an instruction from the CPU 71, and the cutting motor 82 a is a motor for supplying rotational force to the rotary blade 32. By driving the cutting motor 82a at a predetermined timing in conjunction with the above-described feeding motor 81a, the rotary blade 32 rotates, and the sheet material S pulled out from the towel roll R is at a position of a predetermined length from the front end portion. Disconnected.

  The water supply pump drive circuit 83 is a circuit for driving and controlling the water supply pump 83a based on an instruction from the CPU 71. The water supply pump 83a sends the water sucked from the water tank T to the water sprinkling unit 40 (see FIG. 2). It is a pump to do. By driving the water supply pump 83 a, water is sprinkled from the sprinkling unit 40 to the sheet material S drawn from the towel roll R, and moisture is imparted to the wound towel M.

  The heater drive circuit 84 is a circuit for driving and controlling the heater 84a based on an instruction from the CPU 71. The heater 84a includes a storage chamber as storage means and supplies water stored in the storage chamber to a predetermined amount. It is a so-called electric heater that is heated to a temperature and maintained at a predetermined temperature. By driving the heater 84a (see FIG. 2), warm water is sprinkled on the sheet material S, and a warm wound towel M is manufactured.

  In addition, although the winding hand towel manufacturing apparatus 1 of a present Example was set as the structure provided only with the heater 84a as a heating means of water, it is not necessarily restricted to this, It replaces with the heater 84a or in addition to the heater 84a. Thus, it is possible to provide a cooling means for water. Various known techniques can be applied as the water cooling means. For example, a Peltier element (electronic refrigeration element) can be used. Thereby, cold water can be sprinkled on the sheet material S to produce a cold wound towel M.

  The transport motor drive circuit 85 is a circuit for driving and controlling the transport motor 85 a based on an instruction from the CPU 71, and the transport motor 85 a is a motor for supplying a rotational force to the transport belt 61. By driving the conveyance motor 85 a, the single sheet material S cut by the rotary blade 32 described above with a predetermined length is conveyed downstream by the conveyance belt 61.

  The reverse motor drive circuit 86 is a circuit for driving and controlling the reverse motor 86 a based on an instruction from the CPU 71, and the reverse motor 86 a is a motor for supplying rotational force to the reverse ring 63. By driving the reversing motor 86a, the reversing ring 63 is driven, and the reversing ring 63 cooperates with the conveying belt 61 to wind the sheet material S into a roll shape and manufacture the wound hand towel M.

  The sound / display control circuit 87 is a circuit for controlling display by various display devices such as the 7-segment LED 4b based on an instruction from the CPU 71 and controlling output of a warning sound or the like by the speaker 88.

  The sensor control circuit 89 is a circuit for checking the detection states of the various sensors 90 and outputting them to the CPU 71. The CPU 71 controls driving of the feed motor 81a and the like according to the detection states of the various sensors 90. . For example, when it is detected by the optical sensor 120 (described later) that the pan / cap 5 is closed, the CPU 71 operates and stops as described above in order to prevent the hand towel M from being clogged in the main body 2. The pressing of the button 4a is invalidated, and the production of the hand towel M is prohibited. The various sensors 90 include, for example, a temperature sensor (not shown) in addition to the optical sensor 120 described later, and a temperature abnormality of the heater 84a is detected by the temperature sensor.

  Various buttons 92 including the above-described operation / stop button 4a are connected to the other input / output circuit 91. For example, when the operation / stop button 4a is pressed by the user, the press is detected by the CPU 71 via the bus line 74, and the CPU 71 controls the drive circuits 81 to 89 and the like to thereby control the feeding motor. 81a etc. are driven to manufacture the hand towel M.

  Next, the winding hand towel manufacturing process executed by the winding hand towel manufacturing apparatus 1 configured as described above will be described with reference to the flowchart of FIG.

  FIG. 8 is a flowchart showing main processing executed by the CPU 71. This process is a process that is started by turning on the power to the hand towel manufacturing apparatus 1 and is repeatedly executed by the CPU 71 while the power is on.

  Regarding the main process, the CPU 71 first executes an initial setting process (S1). In this initial setting process, as described above, the presence / absence of the towel roll R (sheet material S), the state of each driving device, and the like are checked, and the results and the like are displayed on the LCD 4b. A process for setting to the initial length), a process for setting the interrupt routine to be started in response to the pressing of the start button 4c, and the like are performed, so that the hand towel manufacturing apparatus 1 can start manufacturing the hand towel M. Is set.

  In the initial setting process (S1), the presence or absence of the towel roll R (sheet material S) is confirmed by an optical sensor (not shown), etc., the towel roll R is present, and the sheet material S is terminated. Since it has not reached (or peeling has not occurred in the bonded portion between the end of the sheet material S and the core), and it can be determined that the leading edge of the sheet material S is properly set, After performing other processes, the process proceeds to S2.

  Here, the count value C will be described. The count value is the number of hand towels set by the user. When a hand towel is completed and released, this count is decremented by one.

  In the process of S2, it is confirmed whether the count value C stored in the register is equal to or greater than 1 (S2). If the count value C is smaller than 1 (S2: No), each process (S3) is executed. To do. In each process (S3), a setting process using various buttons (for example, the number of rolled hand towels M manufactured, sheet length, etc.), display control of the LCD 4b, and the like are performed. After each process (S3) is executed, the process proceeds to S2.

  In the process of S2, since the count value C is equal to or larger than 1 (S2: Yes), it means that the hand towel to be manufactured is reserved, so that the manufacture of the hand towel M is started after S4. Execute the process.

  In this case, the CPU 71 first starts the operation of pulling out the sheet material S from the towel roll R by driving the feed motor 81a and rotating the drive roller 23 (S4). Accordingly, the sheet material S is transferred from the sheet material feeding unit 20 toward the watering unit 40.

  After starting the drawing operation of the sheet material S (S4), the process proceeds to S5, where it is confirmed whether or not the driving roller 23 has been rotated a predetermined number of times from the start of rotation (S5). It waits until it reaches the number of times (S5: No). The rotational speed of the driving roller 23 is confirmed by a rotation sensor (not shown) installed on the driving roller 23, and a plurality of equidistant intervals are arranged on the circumference of a disk attached to the shaft of the driving roller 23. Protrusions are provided, and the rotation of the drive roller 23 is detected by detecting that these protrusions block the photosensor.

  Further, in the rolling hand towel manufacturing apparatus 1 of the present embodiment, the leading end of the sheet material S hanging from the sheet material feeding unit 20 reaches the watering roller 48 of the watering unit 40 by rotating the driving roller 23 by 1 rotation. Is set.

  Therefore, in the process of S5, when it is determined that the driving roller 23 has rotated a predetermined amount (S5: Yes), it means that the leading edge of the sheet material S has reached the watering roller 48 of the watering part 40. The pump 83a is driven to start water supply to the sprinkler 40 (S6). Thereby, water can be sprinkled without waste on the sheet material S passing through the transfer path of the sprinkler 40.

  After starting spraying water on the sheet material S (S6), the process proceeds to S7, and it is confirmed whether or not the drive roller 23 has been rotated m (predetermined number) from the start of rotation (S7). It waits until the rotation speed reaches m rotation (S7: No). In the rolled hand towel manufacturing apparatus 1 of the present embodiment, when the driving roller 23 is rotated m, the leading end of the sheet material S hanging from the sheet material feeding unit 20 passes through the sprinkling unit 40 and the forming unit 60. Is set so as to reach the upper surface of the conveyor belt 61.

  Therefore, in the process of S7, when it is determined that the driving roller 23 has rotated m (S7: Yes), it means that the leading edge of the sheet material S has reached the conveying belt 61 of the forming unit 60. The conveyance motor 85a is driven to start the rotation of the conveyance belt 61 (S7). As a result, the sheet material S that has passed through the sprinkling unit 40 and has reached the conveying belt 61 can be drawn into the conveying path of the forming unit 60, so that the sheet material S is folded on the conveying belt 61 and conveyed. It can be prevented from becoming a cause of clogging and molding defects.

  After starting the drawing operation of the sheet material S into the forming unit 60 (S8), the process proceeds to S9 to check whether the driving roller 23 has been rotated n times from the start of rotation (S9). Wait until the number of revolutions reaches n (S9: No). Here, “n” of n rotations is a value calculated based on the length of the sheet material S set by the user. In the rolling hand towel manufacturing apparatus 1 of the present embodiment, the sheet length can be set to a value of 30 mm intervals from 180 mm to 480 mm, while the outer peripheral length of the drive roller 23 is approximately 30 mm as described above. An integer value of “6 to 16” is set as the value of the rotation speed “n”.

  Accordingly, in the process of S9, when it is determined that the driving roller 23 has rotated n times (S9: Yes), the drawing out of the sheet material S corresponding to the sheet length set by the user has been completed. Therefore, the drive of the feed motor 81a, the water supply pump 83a, and the conveyance motor 85a is stopped (S10), the sheet material S is pulled out from the towel roll R, the water is sprayed onto the sheet material S, and the front end of the sheet material S. Each operation | work with drawing in to the shaping | molding part 60 is complete | finished.

  As a result, the sheet material S is held on the conveyance path from the sheet material feeding unit 20 through the water sprinkling unit 40 to the forming unit 60. When the rotational speed n of the drive roller 23 in the process of S9 is a small value (eg, “6”), the leading edge of the sheet material S is stopped near the entrance of the forming unit 60, while the rotational speed When the value of n is a large value (for example, “16”), the sheet material S is further drawn into the conveyance path of the molding unit 60 (the surface facing the cover member 22), and the sheet material S is caught at the tip. The nucleus is triggered.

  After the sheet material S is pulled out (S10), the cutting motor 82a is driven to rotate the rotary blade 32, thereby cutting the sheet material S together with the fixed blade 33 (S11). Then, after the drive of the cutting motor 82a is stopped (S12), the process proceeds to S13.

  After the sheet material S is cut (S11, S12), the driving of the conveyance motor 85a is started again and the conveyance belt 61 is rotated to convey the sheet material S along the conveyance path of the molding unit 60. (S13) The reversing motor 86a is driven to rotate the reversing ring 63, whereby the sheet material S is wound into a roll shape and molding of the hand towel M is started (S14). The reversing ring 63 is moved in the direction opposite to the conveying belt 61, and the moving speed Vr1 of the reversing ring 63 is substantially equal to the moving speed Vc1 of the conveying belt 61 (Vr1 = Vc1).

  When the processes of S13 and S14 are started, the sheet material S is first conveyed in the downstream direction along the conveyance path by the rotation of the conveyance belt 61, and passes between the facing surfaces of the cover member 62 ( The core of entrainment is raised at the tip, and after that, the core is further conveyed to reach the surface facing the reversing ring 63.

  As shown in FIG. 5B, the opposed surfaces of the reversing ring 63 and the conveyor belt 61 are moved at substantially equal speeds in opposite directions. Therefore, the sheet material S that has reached between the opposing surfaces is wound in a roll shape while being held on the lower surface side of the inclined member 62b as shown in FIG. As a result, it is not necessary to secure a processing path length (belt length) for winding the sheet material S into a roll shape unlike the conventional winding hand towel manufacturing apparatus, and the belt lengths of the reversing ring 63 and the conveying belt 61 are shortened. Therefore, it is possible to reduce the size of the molding unit 60 and to reduce the size of the wound hand towel manufacturing apparatus 1 as a whole.

  In addition, by making the moving speeds Vr1 and Vc1 of the reversing ring 63 and the conveyor belt 61 substantially equal in this way, the relative speed difference between the facing surfaces can be maximized, so the winding speed of the sheet material S is increased. The speed can be increased, and the time required for forming the wound hand towel M can be shortened accordingly.

  Note that, for example, even when the moving speed Vr1 of the reversing ring 63 is higher than the moving speed Vc1 of the conveyor belt 61 due to dimensional variations during assembly, assembling errors, or variations in motor output characteristics ( Vc1 <Vr1), and the inclined member 62b is formed so as to be inclined upward in the conveyance direction of the sheet material S (the left direction in FIG. 5B), so that the sheet material S is upstream in the conveyance direction (FIG. b) It is possible to prevent backflow to the right side). Therefore, since it is not necessary to make the moving speeds of the transport belt 61 and the reversing ring 63 exactly match, management costs such as dimensional variations can be reduced accordingly.

  As the roll forming of the sheet material S proceeds, the sheet material S is regulated by the inclination of the inclined member 62b as the roll diameter increases, and gradually moves downstream in the transport direction on the lower surface side of the inclined member 62b. Moved. In this case, one of the rollers 53a around which the reversing ring 63 is wound can escape upward as the roll diameter increases, as described above.

  Therefore, the sheet material S can be wound in a roll shape regardless of the thickness and length of the sheet material S. Therefore, by appropriately setting the length of the sheet material S, winding of an arbitrary roll diameter from a small diameter to a large diameter can be performed. A hand towel can be manufactured. Furthermore, since the contact state between the sheet material S and the reversing ring 63 can be made substantially constant, the wrapping strength of the sheet material S is moderated, and appropriate (so-called “soft”) wrapping is applied. M can be molded.

  In addition, in the conventional rolling hand towel manufacturing apparatus, the sheet material S was roll-formed while being conveyed downstream in the conveying direction, and thus variations in forming were likely to occur due to the conveyance. On the other hand, in the rolling hand towel manufacturing apparatus 1 of the present embodiment, as described above, the sheet material S can be wound in a roll shape while being held on the lower surface side of the inclined member 62b. Variations can be suppressed and the wound hand towel M can be formed with stable accuracy.

  In the process of S15, after the processes of S13 and S14 are started, that is, the rotation of the conveying belt 61 and the reverse ring 63 is started, and it is confirmed whether or not Tn seconds have elapsed since the roll forming of the sheet material S is started. (S15), waiting until Tn seconds elapse (S15: No). In the case where the start timings of the transport belt 61 and the reverse ring 63 are not simultaneous, the elapsed time of Tn seconds may be the elapsed time from the start timing of either the transport belt 61 or the reverse ring 63.

  Here, “Tn” seconds is a value representing the time spent for roll forming the sheet material S, and is calculated based on the length of the sheet material S set by the user. That is, the value of “Tn” is proportional to the value of “n (see S9)” described above, and the longer (shorter) the sheet length of the sheet material S is, like the value of the rotational speed “n”, The value of “Tn” also becomes larger (smaller), and the time spent for roll forming becomes longer (shorter).

  Therefore, when the passage of Tn seconds is confirmed in the process of S15 (S15: Yes), the roll forming of the sheet material S is completed, and the winding hand towel M is formed. Therefore, in this case (S15: Yes), the reversing motor 86a is stopped, and the rotation of the reversing ring 63 is stopped (S16), so that the winding hand towel M is discharged from the molding unit 60.

  That is, when roll forming between the opposed surfaces of the reversing ring 63 and the conveyor belt 61 is completed, the conveyor belt 61 continues to rotate and maintains its moving speed Vc2 (Vc2 = Vc1), S16. By this process, only the rotation of the reversing ring 63 is stopped, and the moving speed Vr2 is set to “0” (Vr2 = 0). Thereby, the sheet material S (that is, the winding hand towel M) that has been roll-formed can be discharged toward the downstream side in the transport direction of the transport belt 61.

  Therefore, it is not necessary to convey (discharge) the sheet material S with a relative speed difference (i.e., Vc1-Vr1) between the opposing surfaces while roll-forming the sheet material S as in a conventional hand towel manufacturing apparatus. Since the sheet material S can be discharged at the moving speed Vc2 (= Vc1) of the transport belt 61, the discharge speed of the sheet material S can be increased accordingly.

  The winding hand towel manufacturing apparatus 1 according to the present embodiment includes two motors, a conveyance motor 85a for driving the conveyance belt 61 and a reversing motor 86a for driving the reversing ring 63. By stopping the rotation, it is possible to stop only the rotation of the reversing ring 63 while continuing the rotation of the conveyor belt 53. Therefore, as in the case where both the conveyor belt 61 and the reverse ring 63 are driven by only one motor, in order to stop only the rotation of the reverse ring 63, the rotational force from the one motor is reduced. In order to stop the transmission only on the reversing ring 63 side, it is not necessary to separately provide a complicated mechanism such as releasing the meshing of the gear, and the structure of the molding part 60 can be simplified. Can be reduced.

  After the discharge of the winding hand towel M is finished (S16), the drive of the transport motor 85a is stopped and the rotation of the transport belt 61 is finished (S17). Thereby, a series of processes for forming the winding hand towel M is completed.

  After performing the process of S17, the optical sensor detection process (S18) is performed, the sheet material S of the towel roll R reaches the end during the manufacture of the hand towel M, and the end of the sheet material S and the core Check if the adhesive has peeled off.

  When the presence of the sheet material S is confirmed by the optical sensor detection process (S18) (S32: Yes), the towel roll R is present, and the end of the sheet material S is bonded to the core. It can be determined that no peeling has occurred. Therefore, it is possible to continue to manufacture the hand towel M, so the count value C is decremented by 1 (S19) and the process returns to S2.

  The stop of the driving of the transport motor 85a is executed at a timing when a predetermined time has elapsed after the driving of the reverse motor 86a is stopped in the process of S16. In this embodiment, the predetermined time is approximately 1 second.

  As described above, according to the hand towel manufacturing apparatus 1 of the present embodiment, the water sprinkling unit 40 that sprinkles the sheet material S is provided upstream of the forming unit 60 that rolls up the sheet material into a roll shape. A water supply valve 41 is provided in the water supply hole 49d for supplying water. The water supply hole 49d is disposed at a position lower than the level of water stored in the water tank T. However, when the water supply pump 83a is not in operation, the water supply valve 41 closes the water supply hole 49d. When water in the water tank T is not sent to the sprinkling unit 40 and the water supply pump 83a is activated and the pressure of the water increases, the water supply valve 41 is opened by the water pressure, and water is sprayed on the sheet material S. Is called.

  The present invention has been described above based on the embodiments. However, the present invention is not limited to the above-described embodiments, and various modifications and changes can be easily made without departing from the spirit of the present invention. Can be inferred.

  For example, in the winding hand towel manufacturing apparatus of the above embodiment, the water supply valve 41 is fixed to the lower end of the T-shaped rod 43, and the T-shaped rod 43 is urged upward by the coil spring 42 to close the water supply hole 49d. However, the lower end of the coil spring may be fixed to the water supply valve, and the coil spring may pull the water supply valve upward to close the water supply hole.

Claims (6)

A feeding means for feeding the belt-shaped sheet material, a cutting means for cutting the sheet material fed by the feeding means into a predetermined length, a water tank for storing liquid, and the water tank. A water supply pump that pressurizes and supplies liquid to the liquid, water spraying means for spraying the liquid supplied by the water supply pump to the sheet material cut by the cutting means, and a sheet material sprayed with the liquid sprayed by the water spraying means In a winding hand towel manufacturing apparatus comprising a forming means for forming a wound hand towel by winding into a shape,
A water supply hole that is located below the level of the liquid stored in the water tank and is formed in a water supply channel downstream of the water supply pump and supplying water to the watering means;
A water supply valve that closes the water supply hole when the water supply pump is not in operation, and opens the water supply hole with a liquid pressurized by the water supply pump when the water supply pump is in operation; A rolling hand towel making apparatus.   The water supply valve is energized by a spring to close the water supply hole, and is pressurized by the water supply pump so that the liquid opens the water supply hole against the energizing force of the spring. The winding hand towel manufacturing apparatus according to claim 1. The forming means has a transport belt for winding a sheet material into a roll shape,
The watering means includes a roller for winding a sheet material between the conveying belt,
Roller holding means for holding the shaft of the roller so that the shaft can move in a direction in which the shaft of the roller is pressed against or separated from the conveyor belt;
The winding hand towel manufacturing apparatus according to claim 1, further comprising: a pressing spring that presses the shaft of the roller against the conveying belt. The water supply hole, the water supply valve, and the watering means integrally form a watering part, and the watering part has support shafts at both ends,
A support member having a support part for supporting the water sprinkling part, and a claw part formed by an elastic body that prevents the support shaft of the water sprinkling part inserted into the support part from being detached from the support part; ,
The winding hand towel manufacturing apparatus according to any one of claims 1 to 3, wherein the support shaft of the sprinkling part is inserted into the support part by bending a claw part of the support member. A feeding means for feeding the belt-shaped sheet material, a cutting means for cutting the sheet material fed by the feeding means into a predetermined length, a water tank for storing liquid, and the water tank. A water supply pump that pressurizes and supplies water to the liquid, water spraying means for spraying the liquid supplied by the water supply pump to the sheet material cut by the cutting means, and a sheet material sprayed with the liquid by the water spraying means In a winding hand towel manufacturing apparatus comprising a forming means for forming a wound hand towel by winding into a shape,
The forming means has a transport belt for winding a sheet material into a roll shape,
The watering means includes a roller for winding a sheet material between the conveying belt,
Roller holding means for holding the shaft of the roller so that the shaft can move in a direction in which the shaft of the roller is pressed against or separated from the conveyor belt;
A rolling hand towel manufacturing apparatus comprising: a pressing spring that presses the shaft of the roller against a conveying belt. A feeding means for feeding the belt-shaped sheet material, a cutting means for cutting the sheet material fed by the feeding means into a predetermined length, a water tank for storing liquid, and the water tank. A water supply pump that pressurizes and supplies liquid to the liquid, water spraying means for spraying the liquid supplied by the water supply pump to the sheet material cut by the cutting means, and a sheet material sprayed with the liquid sprayed by the water spraying means In a winding hand towel manufacturing apparatus comprising a forming means for forming a wound hand towel by winding into a shape,
The watering means has a roller for spraying water supplied by the water supply pump to the sheet material, and constitutes a watering part having a support shaft in the longitudinal direction of the roller,
A support member having a support part for supporting the water sprinkling part, and a claw part formed by an elastic body that prevents the support shaft of the water sprinkling part inserted into the support part from being detached from the support part; The winding hand towel manufacturing apparatus is characterized in that the support shaft of the watering part is inserted into the support part by bending the claw part of the support member.

Images