JP5870332B2 - Sheet-like product dispensing device - Google Patents

Description

  The present invention relates to a dispensing device for automatically feeding sheet-like products one by one. More specifically, the present invention relates to a dispensing device that sends out sheet-like products each containing a product in a sheet-like bag formed of a thin film.

  The “sheet-like product” in this specification includes a product in which a product is stored in a sheet-like bag, a card, and the like. The “sheet-like bag” is made of resin, aluminum foil, paper, or the like and has substantially no air permeability. The “card” includes a telephone card, a prepaid card, a character card, a bromide, an IC card, and a thin plate-like article made of paper or the like having a thickness equal to or greater than that of a normal card.

  As a sheet-like product dispensing device, sheet-like products are stacked on a table, the uppermost sheet-like product is sucked by a suction device, and the sucked sheet-like product is perpendicular to the stacking direction (ie, lateral direction). A delivery device is known. In this type of dispensing device, when the sheet-like product is sucked by the suction device, the uppermost sheet-like product and the next-positioned sheet-like product are sent out in a stuck state. There is a risk of "out". Various techniques for preventing the two sheets from being conventionally proposed have been proposed. For example, there are apparatuses disclosed in Patent Documents 1 to 3.

  In the automatic delivery device for sheet-like products disclosed in Patent Document 1, after the interval between the sheet-like product supported on the table and the suction device is separated, the suction device is returned to a predetermined interval, and then the suction device is operated. The uppermost sheet product and the lower sheet product (that is, the next sheet product) are separated by separating the suction device and the table by a predetermined distance or more.

  In the card body feeding device disclosed in Patent Document 2, a card body shifting mechanism composed of a solenoid and a shifting piece is disposed at the rear position on the upstream side in the card body dispensing direction of the suction means, When the card body is sucked by the suction means, the upper and lower card bodies are shifted by turning on and off the solenoid so that the shifting piece strikes the rear edge of the uppermost card body and shifts it relative to the card body sucked below. The card body sucked below is separated.

  In the automatic dispensing device for card-like products disclosed in Patent Document 3, when an overlap detection device is disposed in the card transfer path downstream of the transfer device and the overlap detection device detects an overlap, the transfer device is sent back. After the card-like product that has been paid out is returned to the table after being operated, the suction action of the suction device on the card-like product is stopped, and then the upper lever is turned on and off to hit the uppermost card-like product. By doing so, the stuck card-like product is separated.

Japanese Patent No. 4210726 (FIGS. 2 to 5, paragraph numbers 0026 to 0029, paragraph numbers 0038 to 0040, paragraph numbers 0048 to 0055) Japanese Patent No. 4092450 (FIGS. 3, 6, 8 to 10, paragraphs 0028 to 0030) Japanese Patent No. 4423368 (FIGS. 1, 6 to 10, paragraph numbers 0014 to 0024, paragraph numbers 0033 to 0035)

In recent years, sheet-like products have been diversified, and the shape, material, and weight are also various.
For this reason, there is a sheet-like product that cannot sufficiently prevent the two sheets from being discharged by the apparatus of Patent Document 1. For example, in the case of a sheet-like product using a resin-made sheet-like bag that is easily charged, an attractive force due to static electricity acts between the opposing sheet-like products. In particular, it is not unusual for a light-weight sheet-like product to have a greater suction force due to static electricity than the weight of the sheet-like product. There is a concern that it is less certain that it will fall and be separated. In addition, since it is necessary to increase the flow rate of the suction device for heavy sheet-like products, the airflow generated in the gap between the stacked sheet-like product rows and the cassettes that store these sheet-like products Exceeds the force toward the suction device that is received by the high-speed air flow acting on the periphery of the sheet-like product, or the force of the air flow and the adhesion between the sheet-like product (suction force due to static electricity, etc.) Therefore, when the uppermost sheet-like product is sucked, the next sheet-like product may be sucked together. Even if the table is released in this state, it is still difficult to separate the uppermost sheet-like product from the next sheet-like product. Therefore, the automatic dispensing device of Patent Document 1 is not sufficient for preventing two sheets from being taken out.

  In the devices of Patent Document 2 and Patent Document 3, the uppermost card body or card-like product is obtained by striking and shifting the rear edge of the uppermost card body or hitting the uppermost card-like product. Therefore, the effect of preventing the two sheets from being taken out is higher than that of the apparatus of Patent Document 1. However, it is necessary to add a new mechanism for this purpose, and the cost increases.

The present invention has been made to improve the above-described problems of the prior art, and an object of the present invention is to provide a sheet-like product dispensing device that can more reliably prevent the two-sheet product from being taken out. It is in.
Another object of the present invention is to provide a sheet-like product dispensing device that can reliably prevent two sheets from being taken out while suppressing an increase in cost.
Still another object of the present invention is to provide a sheet-like product dispensing device that can reliably prevent two sheets from being taken out even when a suction device having a strong suction force is used.
Other objects of the present invention which are not specified here will be apparent from the following description and the accompanying drawings.

  In order to achieve this object, an automatic dispensing device for sheet-like products according to the present invention is configured as follows.

The sheet-like product dispensing device according to the present invention sucks the uppermost sheet-like product through a table that supports the sheet-like product stacked in a row and a suction port disposed above the stacked sheet-like product. A suction device, an airflow blowing device for blowing an airflow between the uppermost sheet-like product sucked by the suction device and a lower-layer sheet-like product, and a discharge outlet for the sheet-like product sucked by the suction device A sheet-like product dispensing device comprising: a conveying device that conveys toward the sheet, and is arranged with the suction device sandwiched therebetween and is parallel to the conveying direction of the sheet-like product and is vertically suspended at a predetermined interval A pair of side plates, a pair of side walls disposed below the suction device between the pair of side plates and parallel to the pair of side plates, and on the pair of side walls A base having an upper portion extending in between, wherein the air flow blowing device extends along a conveying direction of the sheet-like product, and both ends are arranged on the upper portion of the base and the top portion is the top portion. An airflow derivative that is disposed above the suction device and guides the airflow discharged from the suction device downward, and openings formed in the pair of side walls of the base along the conveying direction of the sheet-like product, respectively And an air flow path formed between the side wall of the base and the side plate corresponding to the side wall to guide the air flow discharged from the suction device to the opening. This is a product dispensing device.

In the sheet-like product dispensing device of the present invention, the uppermost sheet-like product supported by the table is sucked by the suction device. In this state, the airflow is blown between the uppermost sheet-like product and the lower-level sheet-like product by the airflow blowing device. This blown airflow is sucked by a suction device. Accordingly, the air flow sucked from between the cassette and the lower sheet-like product of the uppermost sheet-like product is reduced. In other words, the flow velocity of the airflow generated between the cassette and the lower sheet-like product of the uppermost sheet-like product is reduced. As a result, the force toward the suction device side received by the air flow acting on the peripheral edge of the sheet-like product or the sum of the force caused by the air flow and the adhesion force between the sheet-like product (suction force due to static electricity, etc.) is lower It does not act beyond the drop force of the sheet-like product.
Therefore, it is possible to reliably separate the uppermost sheet-like product and the lower-level sheet-like product.

  In such a state where the uppermost sheet-like product and the lower-order sheet-like product are separated, the conveying device operates to convey the uppermost sheet-like product toward the payout opening. Sheeting can be prevented more reliably. Therefore, even in the case of a sheet-like product using a sheet-like bag that is easily charged or when a suction device having a strong suction force is used, it is possible to reliably prevent the two sheet-like products from being taken out.

In the sheet-like article dispensing apparatus of the present invention, since the use of the air flow discharged from the suction drawing device, it does not require a new device for injecting an air flow. Therefore, the airflow blowing device can be realized at low cost. In addition, when a suction device having a strong suction force is used, the airflow discharged from the suction device is also increased, so that the uppermost sheet-like product and the lower-order sheet-like product can be reliably separated. In other words, there is an advantage that two sheets can be surely prevented while suppressing the cost.

In the sheet-like article dispensing apparatus of the present invention has an advantage that can realize the gas flow blowing device with a simple structure.

In the sheet-like article dispensing apparatus of the present invention, it can be efficiently guided airflow discharged from Aspirate device opening. In other words, there is an advantage that the effect of separating the uppermost sheet-shaped product and the lower-level sheet-shaped product can be further enhanced.

  In the sheet-like product dispensing device of the present invention, (a) two pieces of sheet-like products can be more reliably prevented, (b) two pieces of sheet-like products can be reliably prevented while suppressing an increase in cost, (C) Even when a suction device having a strong suction force is used, it is possible to reliably prevent two sheets from being taken out.

It is a perspective view which shows the sheet-like goods delivery apparatus of one Example of this invention. It is principal part sectional drawing of the discharge part which comprises the sheet-like goods discharge apparatus of FIG. It is a sectional view taken along line III-III in FIG. 2. It is a perspective view of the state which removed the right side frame and the top frame which show the discharge part of FIG. It is a perspective view of the state which removed the left side frame which shows the discharge part of FIG. It is a perspective view which shows the 1st roller apparatus of the 1st conveying apparatus which comprises the discharge part of FIG. It is a perspective view which shows the upper roller apparatus of the 2nd conveying apparatus which comprises the discharge part of FIG. It is a perspective view which shows an example of a sheet-like goods. It is a block diagram which shows the control apparatus of the sheet-like goods delivery apparatus of FIG. It is a flowchart for demonstrating the action | operation of the sheet-like goods delivery apparatus of FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  FIG. 1 shows a sheet-like product dispensing apparatus 102 according to an embodiment of the present invention. As shown in FIG. 7, the sheet-like product 100 of the present embodiment is a product in which a plate-like product 100 </ b> C such as a card is accommodated in a resin sheet-like bag 100 </ b> B. The sheet-like product dispensing device 102 includes a dispensing unit 104 and a storage unit 106.

First, the payout unit 104 will be described with reference to FIGS. The payout unit 104 includes a payout frame 120 including left and right side frames 112 and 114 and a top frame 118 fixed to the upper portions of the side frames 112 and 114. The dispensing frame 120 is removably attached to the left and right side frames 124 and 126 of savings engaging portion 106 erected on the base frame 122. Therefore, when a constituent unit of the payout unit 104 fails, it can be dealt with by replacing it with a new payout unit 104. A sub-frame 119 (see FIG. 3) that protrudes into the payout frame 120 and is parallel to the left side frame 112 is attached to the left side frame 112. A suction device 130 and a transport device 131 are arranged in the payout frame 120. The transport device 131 includes a first transport device 132 and a second transport device 135.

  A base 138 is mounted substantially horizontally between the left and right side frames 112 and 114 at the bottom of the payout frame 120. The base 138 includes left and right bottom portions 138a and 138b extending substantially horizontally inward from the lower ends of the side frames 112 and 114, left and right side walls 138c and 138d suspended from the bottom portions 138a and 138b, and side walls 138c and 138d. And an upper part 138e extending substantially horizontally between the upper ends of the two parts. The bottom portions 138a and 138b, the side walls 138c and 138d, and the upper portion 138e extend along the conveyance direction of the sheet-like product 100, thereby forming a conveyance passage 139 including a space recessed upward.

  First, the suction device 130 will be described. The suction device 130 has a function of sucking the sheet-like product 100 with a suction airflow. The suction device 130 includes a cylindrical leveling box 134 and a suction airflow generation device 136.

  The leveling box 134 has a cylindrical shape with a hollow portion extending in the vertical direction, and is fixed to the base 138. However, the leveling box 134 can be formed integrally with the base 138. The equalizing box 134 is divided into two by a conveyance direction partition wall 142 that intersects with the conveyance direction of the first conveyance device 132 and extends in a direction orthogonal to the upper portion 138e of the base 138. Four suction ports 141 are formed in the upper portion 138e of the base 138 located at the lower end of the leveling box 134. Two suction ports 141 are arranged side by side in a direction orthogonal to the conveyance direction of the sheet-like product 100 with the conveyance direction partition wall 142 interposed therebetween. In other words, the leveling box 134 has a predetermined thickness and includes a first chamber 148 having a pair of suction ports 141 and a second chamber 150 having a pair of suction ports 141.

  The first chamber 148 and the second chamber 150 have a predetermined volume determined by the respective opening areas and the thickness of the equalizing box 134. When the first chamber 148 and the second chamber 150 have a predetermined volume, even if the suction force of the suction airflow generation device 136 fluctuates with time, the volume becomes a cushion and the suction force suddenly increases. There is an advantage that the sheet-like product 100 can be prevented from dropping due to the decrease.

  The suction airflow generation device 136 is disposed on the leveling box 134 and generates an airflow sucked from the suction port 141. The suction airflow generation device 136 includes an axial fan 152 that is rotated by a first electric motor 151 that rotates about a substantially vertical rotation axis. The axial fan 152 is disposed in a circular hole (not shown) of the casing 154 and is fixed to the output shaft of the first electric motor 151 fixed to the step 158 on the upper surface of the casing 154.

  The axial fan 152 is fixed to the upper surface of the leveling box 134. In other words, the suction airflow generation device 136 is attached relative to the opening of the leveling box 134 on the opposite side of the suction port 141 and sucks air from the suction port 141. By rotation of the axial fan 152, air is sucked into the leveling box 134 from the suction port 141, and an upward airflow is generated. The suction airflow generation device 136 can employ a method of generating a suction airflow by the ejector effect. Further, the suction airflow generation device 136 may rotate the axial fan 152 by an air motor.

  Next, the 1st conveying apparatus 132 is demonstrated. The 1st conveyance apparatus 132 has the function to convey the sheet-like goods 100 attracted | sucked by the suction apparatus 130 to a horizontal direction (namely, 1st direction), and to send out to the following process. The first transport device 132 is disposed in the leveling box 134. The peripheral surface of the first transport device 132 slightly protrudes downward from the suction port 141 in order to send the sheet-like product 100 sucked into the suction port 141 to the second transport device 135 as the next step. In the embodiment, the first transport device 132 includes a first roller device 160 disposed in the first chamber 148 and a second roller device 162 disposed in the second chamber 150.

  As shown in FIG. 6, the first roller device 160 includes two rollers 174 a and 174 b that are fixed at a predetermined interval to a rotation shaft 172 A that is horizontally and rotatably attached to the side wall 170 of the leveling box 134. ing. The second roller device 162 has the same structure as the first roller device 160, and includes two rollers 174c and 174d fixed to the rotation shaft 172B at a predetermined interval. Accordingly, the peripheral surfaces of the rollers 174 a to 174 d slightly protrude from the lower end of the leveling box 134. For this reason, when the sheet-like product 100 is sucked into the suction port 141, air is sucked from a slight gap between the lower end of the leveling box 134 and the sheet-like product 100. This prevents overheating of the first electric motor 151, avoids frictional contact between the sheet-like product 100 and the upper portion 138e of the base 138, and minimizes the conveyance resistance of the sheet-like product 100.

As shown in FIG. 7, the rollers 174a and 174b of the first roller device 160 have a pair of protrusions 175 that are covered with a wear-resistant rubber such as EPDM in a ring shape and protrude in the circumferential direction on the peripheral surface. Each has. At least one protrusion 175 may be disposed on the peripheral surfaces of the rollers 174a and 174b, but in the present embodiment, two protrusions 175 are disposed symmetrically with respect to the rotating shaft 172A. A plurality of grooves 175A are formed on the top of the protrusion 175 so that the sheet-like product 100 is caught. Each have a pair of projections 175 similarly roller 174c, 17 4d of the second roller unit 162.

In the first roller unit 160, the projection 175 of the roller 174a is formed along a straight line L1 perpendicular to the center axis of the rotation shaft 172A, the protrusions 175 of the roller 17 4b is a straight line L2 perpendicular to the center axis AX of the rotary shaft 172A The straight lines L1 and L2 intersect at an angle of about 45 degrees when viewed from the direction of the central axis AX of the rotation shaft 172A. In other words, the protrusion 175 of the roller 174a and the protrusion 175 of the roller 174b have a rotational phase difference of about 45 degrees. The same applies to the second roller device 162. The protrusion 175 of the roller 174c and the protrusion 175 of the roller 174d also have a rotational phase difference of about 45 degrees. Further, as shown in FIG. 2, the protrusion 175 of the roller 174a of the first roller device 160 and the protrusion 175 of the roller 174c of the second roller device 162 have a rotational phase difference of about 45 degrees. Thereby, when the 1st roller apparatus 160 and the 2nd roller apparatus 162 rotate synchronously, each protrusion 175 arrives at a predetermined position, maintaining the phase difference of about 45 degree | times in order of roller 174a-174d.

The protrusions 175 of the rollers 174a to 174d of the first roller device 160 and the second roller device 162 have a function of moving the sheet-like product 100 up and down during rotation. That is, when the sheet-like product 100 gets over the protrusion 175, the portion of the sheet-like product 100 that contacts the protrusion 175 moves upward, and the posture of the sheet-like product 100 changes. With the passage of the projection 36 thereafter, the part of the sheet-like product 100 moves downward and returns to the original position. As described above, since each protrusion 175 of the rollers 174a to 174d reaches a predetermined position while maintaining a phase difference of about 45 degrees, the sheet-like product 100 moves up and down at different timings for each part by the protrusion 175. It is conveyed by the first roller device 160 and the second roller device 162 while always changing the posture by vertical movement. In other words, the roller 174A～174 d of the first roller unit 160 and the second roller unit 162, (in other words, in the vertical direction vibration) oscillate the sheet-like product 1 00 transports while a predetermined direction transport It functions as a body 176.

In the first roller unit 160 and the second roller unit 162 may be disposed a projection 175 of the roller 174A～174 d in a position that does not cause the rotational phase difference, the first roller unit 160 rollers 174a, of 174b It is also possible to arrange so that a predetermined rotational phase difference is generated between the protrusion 175 and the protrusions of the rollers 174c and 174d of the second roller device 162. What is necessary is just to set suitably according to the shape of the sheet-like goods 100, etc. Further, the first transfer device 132, instead of the roller 174A～174 d, can be a transport device using a belt having a protrusion.

  On the side opposite to the second roller device 162 of the first roller device 160, there is disposed a stopper 177 that is fixed to the rear ends of the left and right side frames 112, 114 and extends in a direction orthogonal to the transport direction of the first transport device 132. Has been. The stopper 177 has a function of restricting the movement of the sheet-like product 100 when the sheet-like product 100 is conveyed in the second direction opposite to the first direction by the first conveying device 132 as will be described later.

  When the sheet-like product 100 sucked by the suction device 130 is conveyed in the second direction by the first conveying device 132, the movement of the sheet-like product 100 in the lateral direction is restricted by the stopper 177. Therefore, the sheet-like product 100 collides with the stopper 177, and moves slightly in the first direction due to the reaction of the collision and once leaves the stopper 177, but the conveyance in the second direction by the first conveying device 132 is continued. It will collide with the stopper again. However, after the second time, the movement amount in the second direction is small, and the movement in the first direction and the movement in the second direction are repeated based on the elasticity of the resin sheet-like bag 100B. Therefore, during the conveyance in the second direction by the first conveyance device 132, a lateral force is individually applied to the sheet-like product 100 sucked by the suction device 130. In other words, lateral vibrations are individually applied to the sheet-like product 100. Thereby, a shearing force acts between the sheet-like product 100 sucked by the suction device 130 and the lower sheet-like product 100 in close contact therewith.

  As described above, the first conveying device 132 conveys the sheet-like product 100 while vibrating it in the vertical direction. Therefore, when the horizontal and vertical vibrations are applied to the sheet-like product 100 sucked by the suction device 130. The uppermost sheet-like product 100 and the lower-level sheet-like product 100 can be reliably separated.

  Next, the 2nd conveying apparatus 135 arrange | positioned at the side of the leveling box 134 is demonstrated. The second transport device 135 has a function of transporting the sheet-like product 100 sent from the first transport device 132 to the payout opening 178. The second conveying device 135 includes an upper roller device 188 disposed on the upper side of the discharge passage 186 of the sheet-like product 100 and a lower roller device 190 disposed on the lower side.

  The upper roller device 188 includes a shaft 192 rotatably supported by the base 138 and a pair of rollers 194 fixed to the shaft 192 at a predetermined interval. The peripheral surfaces of these rollers 194 protrude from the opening (not shown) provided in the base 138 into the payout passage 186. The lower surfaces of these rollers 194 are set to be on the same horizontal line as the lower surfaces of the first roller device 160 of the first conveying device 132 and the rollers 174a to 174d of the second roller device 162. As shown in FIG. 7, the pair of rollers 194 are covered with a wear-resistant rubber in a ring shape, like the rollers 174 a to 174 d of the first roller device 160 and the second roller device 162, and on the circumferential surface. Each has a pair of protrusions 195 protruding in the circumferential direction. A plurality of grooves 195 </ b> A are formed at the top of the protrusion 195 so that the sheet-like product 100 is caught. The protrusion 195 of the roller 194 has a function of drawing the leading end portion of the sheet-like product 1 conveyed by the first conveying device 132 (in other words, the leading end of the sheet-like bag 100B) and smoothly introducing it into the second conveying device 135. Have.

  The lower roller device 190 includes a lever 200 rotatably supported by a fixed shaft 191 fixed to the side wall 170, and a pair of rollers 204 fixed to a shaft 202 supported at both ends by the lever 200 at a predetermined interval. Is included. Each of the rollers 204 is disposed relative to the roller 194. The lower roller device 190 is elastically biased so as to protrude into the payout passage 186 so that the sheet-like product 100 is sandwiched between the upper roller device 188 with a predetermined force.

  A guide plate 206 that guides the sheet-like product 100 conveyed by the second conveying device 135 obliquely downward is attached to the base 138 on the outlet side of the payout passage 186. The guide plate 206 includes a guide portion 206a that is curved downward with respect to the base 138, and a cover portion 206b that is suspended from an end portion of the guide portion 206a. The sheet-like product 100 guided by the guide plate 206 is paid out from a payout port of a housing (not shown). In other words, the leading end of the guide portion 206 a of the guide plate 206 is the discharge outlet 178 of the sheet-like product discharge device 102.

  Next, the driving device 210 of the first transport device 132 and the second transport device 135 will be described with reference to FIG. A toothed pulley 212 is fixed to the left end protruding from the side wall 170 of the rotation shaft 172A of the first roller device 160. Toothed pulleys 214 and 216 having the same diameter as the toothed pulley 212 are coaxially fixed to the left end protruding from the side wall 170 of the rotation shaft 172B of the second roller device 162. A toothed pulley 218 having the same diameter as the toothed pulley 216 is fixed to the left end protruding from the side wall 170 of the shaft 202 of the second transport device 135.

Further, a case 211 is attached to the left side frame 112, and a speed reducer 220 (see FIG. 2) is fixed to the case 211. A toothed pulley 224 having the same diameter as the toothed pulleys 212 and 214 is provided on the output shaft 222. It is fixed. The speed reducer 220 is rotated by a second electric motor 226 fixed thereto.

  A toothed belt 228 is wound around the toothed pulleys 212 and 214. The toothed belt 228 is given a predetermined tension by a tensioner 230. A toothed belt 232 is wound around the toothed pulleys 216, 218, and 224, and a predetermined tension is applied by a tensioner 234.

  Therefore, when the second electric motor 226 is rotated in one direction (that is, forward rotation), the toothed pulley 224 is rotated clockwise in FIG. In other words, the rollers 174a to 174d and the roller 194 are rotated in the clockwise direction. As a result, the sheet-like product 100 in contact with the rollers 174a to 174d or the roller 204 is conveyed in the direction toward the payout opening 178 (that is, the first direction). On the other hand, when the second electric motor 226 is rotated in the other direction (that is, reverse rotation), the toothed pulley 224 is rotated counterclockwise, so that the toothed pulleys 212, 214, 216, 218, in other words, For example, the rollers 174a to 174d and the roller 194 are rotated counterclockwise. As a result, the sheet-like product 100 in contact with the rollers 174a to 174d is conveyed in the second direction opposite to the first direction.

  Next, the storage unit 106 of the sheet-like product 100 will be described. As shown in FIG. 1, the storage unit 106 includes a storage chamber 260 that extends in the vertical direction, a table 262 that moves the sheet-like product 100, and a moving device 264 for the table 262.

The storage chamber 260 is surrounded by left and right inner side frames 124A and 126A (see FIG. 3) disposed inside the left and right side frames 124 and 126, a front frame 127, and a rear frame 128, and vertically below the suction device 130. It is a prismatic space extending in the direction. The sheet-like product 100 is stacked on the table 262 with the rear frame 128 opened. Storage chamber 260 is in communication with the transfer passage 139 of the base 13 8.

The table 262 has a rectangular plate shape, and is movable so as to approach and separate from the leveling box 134 below the leveling box 134 in the storage chamber 260. That is, the table 262 is movable so as to approach and separate from the suction port 141 in the vertical direction. The table 262 has a function of moving the sheet-like product 100.
Next, the moving device 264 will be described with reference to FIG. The moving device 264 includes a driving device 280 and a transmission device 282.

The drive device 280 is disposed on the side of the suction device 130 and is attached to the case 211. The third reduction motor 286 is fixed to the reduction device 284 and drives the reduction device 284. A drive gear (not shown) fixed to the output shaft 287 of the speed reducer 284, a fixed shaft 290 fixed to the subframe 119, and rotatably attached to the fixed shaft 290, and meshes with the drive gear 288. an intermediate gear 292, the fixed shaft 294 fixed to the sub-frame 119, an intermediate gear 296 rotatably mounted on the fixed shaft 294, both ends protrude from the side frame 112, 114 of savings engaging portion 106, the end portion The pinion gear 298 is fixed to the rotary shaft 302 and the rotary shaft 302 has a driven gear 304 that meshes with the intermediate gear 296. The drive device 280 has a function of moving the table 262 closer to or away from the suction device 130 via the transmission device 282. Therefore, if it has this function, another mechanism can be adopted.

  Next, the transmission device 282 will be described with reference to FIGS. 1 and 5. The transmission device 282 having the same structure is disposed on the side of the side frames 124 and 126, and the right transmission device 282 will be described as a representative.

  The lower end of the flexible rack 312 is pivotally attached by a pin 314 (see FIG. 1) to a bracket (not shown) protruding laterally from the table 262. The rack 312 is molded from a flexible resin and has flexibility. An intermediate portion of the rack 312 meshes with the pinion gear 298. The back of the rack 312 is pushed by a pinch roller 320 rotatably supported by fixed shafts 318 protruding from the side frames 124 and 126, respectively, and the mesh with the pinion gear 298 is held. The front end of the rack 312 is inserted into an inverted J-shaped pipe 322 fixed to the side surfaces of the side frames 124 and 126 and returned to the base frame 122 side. By arranging the flexible rack 312 in a J or U shape, the transmission device 282 can be configured compactly, which is suitable for downsizing.

  Guide rails 324 having an angle cross section disposed in front of and behind the rack 312 are fixed to the side frames 124 and 126 at a predetermined interval. This is because when the rack 312 is bent by a predetermined amount or more and comes into contact with the guide rails 324, the guide rails 324 are blocked to prevent further bending and prevent the rack 312 from buckling. The moving device 264 in this embodiment is a lifting device 326 because it moves the table 262 up and down.

  The moving device 264 only needs to have a function of changing the suction device 130 and the sheet-like product 100 to a predetermined distance. Therefore, the table 262 may be fixed and the payout unit 104 may be moved. However, since the position of the payout port 178 changes when the payout unit 104 is moved, it is preferable to move the table 262. Further, the driving device 280 and the transmission device 282 can be integrated. For example, the moving device 264 may be configured by standing a magnet plate of a linear motor on the side of the base 138 and connecting a table to the coil plate.

  Next, the first sensor 250 will be described with reference to FIG. A first sensor 250 that detects the sheet-like product 100 is attached to the upper portion 138 e of the base 138. The contact 252 of the first sensor 250 is disposed in the upper space of the storage chamber 260, and the lower end thereof is positioned below the lower surfaces of the rollers 174a to 174d. Accordingly, the first sensor 250 is pressed by the contact 252 and outputs a detection signal when the sheet-like product 100 approaches a predetermined distance. That is, when the uppermost sheet-like product 100 comes into contact with the rollers 174a to 174d and the contact 252 is slightly pushed up by the sheet-like product 100, the first sensor 250 outputs an ON signal. Moreover, the 1st sensor 250 is attached so that position adjustment is possible in the up-down direction in FIG.

  As the first sensor 250, a sensor of another type such as a photoelectric sensor can be used. However, by using a mechanical sensor using the contact 252 as in this embodiment, maintenance such as regular cleaning is not required and the cost is further reduced.

  Next, the fall prevention device 330 for the table 262 will be described with reference to FIGS. 2 and 5. The fall prevention device 330 has a function of preventing the table 262 from rapidly dropping due to the weight of the sheet-like product 100 when the transmission device 282 is released from the drive device 280. This is to prevent the sheet-like product 100 from being damaged due to a rapid drop.

  The fall prevention device 330 preferably uses a unidirectional torque limiter 332. The unidirectional torque limiter 332 has a predetermined rotational resistance when the input shaft receives a rotational force in a predetermined direction, and has a function that hardly has a rotational resistance when the input shaft receives a rotational force in the reverse direction. . Therefore, when the table 262 is lowered to replenish the sheet-like product 100, the table 262 is not suddenly dropped by receiving the predetermined rotational resistance from the torque limiter 332, and the driving device 280 and the transmission device are provided. This is because when the table 262 is raised at 282, the driving energy is reduced instead of the driving resistance. Details of the unidirectional torque limiter 332 are disclosed in Japanese Patent Laid-Open No. 2006-190366, and a description thereof is omitted.

  Next, the second sensor 370 will be described with reference to FIG. The second sensor 370 has a function of detecting that the front end of the sheet-like product 100 has reached the second transport device 135 and that the rear end of the sheet-like product 100 has passed through the second transport device 135. Based on the detection signal of the second sensor 370, the operations of the suction device 130, the first transport device 132, and the second transport device 135 are controlled.

  The second sensor 370 is fixed to the upper portion 138e of the base 138, and its contact 372 is disposed between the rollers 194, and is pushed up by the sheet-like product 100 passing through the conveyance path 139 and the discharge path 186, and outputs an ON signal. When the sheet-like product 100 passes, the contact 372 projects into the payout passage 186 and outputs an OFF signal. When the rear end of the sheet-like product 100 passes through the contact 372, the tip of the sheet-like product 100 protrudes from the payout opening 178. Therefore, the sheet-like product 100 can be received by pulling out the tip.

  Next, the airflow blowing device 400 will be described with reference to FIGS. The airflow blowing device 400 has a function of blowing an airflow between the uppermost sheet-like product 100 sucked by the suction device 130 and the lower-level sheet-like product 100. The airflow blowing device 400 according to the present embodiment includes an airflow derivative 406 that guides the airflow discharged from the suction airflow generation device 136 downward, and an airflow that introduces the airflow guided downward into the conveyance path 139 of the base 138. And an introduction port 402.

  The airflow derivative 406 is a plate-shaped cover 408 that is disposed above the suction airflow generation device 136 and curved upward in an arcuate shape. Both ends of the cover 408 are located at the upper part 138 e of the base 138, and the top of the cover 408 is located approximately at the center of the casing 154 of the suction airflow generation device 136.

  The air flow inlet 402 is a horizontally long slit-shaped opening 404 that is formed in the side walls 138 c and 138 d of the base 138 and extends along the conveying direction of the sheet-like product 100. In other words, the opening 404 is disposed outside and below the suction port 141, and is formed such that its longitudinal direction extends along the conveying direction of the sheet-like product 100. Two openings 404 are formed in the side walls 138c and 138d corresponding to the first chamber 148 and the second chamber 150, respectively. The position of the opening 404 is set so that the horizontal central axis of the opening 404 substantially coincides with the lower surface of the uppermost sheet-like product 100 sucked by the suction device 130. This is because airflow is surely blown between the uppermost sheet-like product 100 and the lower-order sheet-like product 100. The position, shape, and number of the openings 404 can be changed as appropriate.

  As shown in FIG. 3, the airflow of the upward arrow A1 discharged from the suction airflow generation device 136 is blocked by the cover 408 and turned, and the direction of the arrow A2 along the left and right side frames 112 and 114 (that is, Head down). The airflow passing through the first chamber 148 and the second chamber 150 and the left and right side frames 112 and 114 and reaching the bottom portions 138a and 138b of the base 138 passes through the opening 404 as indicated by an arrow A3. 139. In other words, airflow paths A1 to A3 are formed in which the airflow discharged from the suction airflow generation device 136 is guided downward and introduced into the transport passage 139 through the opening 404. Thereby, the airflow introduced from the opening 404 is blown between the uppermost sheet-like product 100 and the lower-order sheet-like product 100. The airflow acts on the side edge portion of the uppermost sheet-like product 100 and pushes up the sheet-like product 100 upward to increase the suction force of the uppermost sheet-like product 100, and Decrease the flow velocity of the acting airflow. Therefore, the lower sheet-shaped product is not moved upward together with the uppermost sheet-shaped product 100.

  The airflow blowing device 400 may have a configuration other than the above as long as it has a function of blowing airflow between the uppermost sheet-like product 100 and the lower-level sheet-like product 100. For example, an airflow can be blown by providing an axial fan separately from the suction airflow generation device 136. However, the cost can be reduced by using the airflow exhausted from the suction airflow generation device 136. Although the cover 408 can be omitted, it is preferable to provide the cover 408 in order to increase the utilization efficiency of the airflow exhausted from the suction airflow generation device 136.

  Next, the control device 380 will be described with reference to FIG. The main control circuit 382 is, for example, a microprocessor, and the CPU 386 performs predetermined processing while exchanging data with the RAM 388 based on a program stored in the ROM 384. That is, the operation of the first electric motor 151, the second electric motor 226, and the third electric motor 286 is controlled based on the payout instruction signal P, the upper position signal U of the first sensor 250, and the payout signal F of the second sensor 370. To do.

Next, the operation of the sheet-like product dispensing device 102 will be described with reference to FIG. In the first step S1, the dispensing instruction signal P of the control device of the vending machine in which the sheet-like product dispensing device 102 is incorporated is determined. If there is a payout instruction signal P, the process proceeds to step S2, and the third electric motor 286 of the moving device 264 is reversed. The rotation of the third electric motor 286 causes the pinion gear 298 to rotate clockwise in FIG. 5 via the reduction gear 284, the intermediate gears 292, 296, the driven gear 304, and the rotating shaft 302. Thereby, since the rack 312 is moved downward, the table 262 and the sheet-like product 100 on the table 262 are lowered. By this lowering, the contact 252 pushed up by the sheet-like product 100 moves downward, and the first sensor 250 outputs an OFF signal OFF.

  If it is determined in step S3 that the OFF signal is OFF, the process proceeds to step S4 where the third electric motor 286 is temporarily stopped and the lowering of the table 262 is stopped. Thereafter, in step S5, the third electric motor 286 is rotated forward. By this forward rotation, the pinion gear 298 is rotated counterclockwise in FIG. 5, so that the rack 312 moves upward, and as a result, the table 262 moves upward. As the table 262 is raised, the sheet-like product 100 is raised, the contact 252 is pushed up, the first sensor 250 is turned on, and the upper position signal U is output.

  If the upper position signal U is determined in step S6, the process proceeds to step S7, and the third electric motor 286 is stopped. As a result, the table 262, and therefore the uppermost sheet-like product 100, is positioned at least slightly below the lower surfaces of the rollers 174 a to 174 d positioned at least directly below the suction port 141. In other words, the uppermost sheet-like product 100 is in a position where it is surely sucked by the suction airflow opposed to the entire surfaces of the suction ports 141 of the first chamber 148 and the second chamber 150.

  In the next step S8, the first electric motor 151 of the suction airflow generation device 136 is rotated. The axial fan 152 is rotated by the rotation of the first electric motor 151, and a suction air flow sucked from the suction port 141 is generated. By this suction airflow, the uppermost sheet-like product 100 is sucked up by the suction airflow and sucked into the suction port 141. In other words, the uppermost sheet-like product 100 comes into contact with the lower surfaces of the first roller device 160 and the second roller device 162.

  The airflow discharged from the suction airflow generation device 136 along with the rotation of the axial fan 152 is guided downward by the cover 408 of the airflow blowing device 400 and introduced into the transport passage 139 through the opening 404 of the base 138. . In the state where the uppermost sheet-like product 100 is sucked into the suction port 141, there is a slight gap between the upper surface of the sheet-like product 100 and the suction port 141, so the uppermost sheet-like product 100 sucked into the suction port 141 Airflow is blown between the sheet-like product 100 and the lower-level sheet-like product 100. Thereby, the uppermost sheet-like product 100 and the lower-order sheet-like product 100 are separated.

  In step S8, the second electric motor 262 is reversely rotated simultaneously with the start of rotation of the first electric motor 151. Accordingly, the rollers 174a to 174d of the first roller device 160 and the second roller device 162 are rotated counterclockwise in FIG. 2, and the uppermost sheet-like product 100 sucked into the suction port 141 is directed to the stopper 177. It is conveyed in two directions. The conveyance in the second direction is blocked by the stopper 177, and the uppermost sheet-like product 100 vibrates in the lateral direction due to the collision with the stopper 177 and the repeated slight movement in the first direction and the second direction. Furthermore, the uppermost sheet-like product 100 vibrates in the up-down direction due to the protrusion 176 of the rollers 174a to 174d being pushed down. Thereby, the uppermost sheet-like product 100 and the lower-order sheet-like product 100 are separated.

  In step S9, after measuring the time sufficient for the suction of the uppermost sheet-like product 100 and the separation of the lower-layer sheet-like product 100, the process proceeds to step S10. In step S10, the third electric motor 286 is reversed. The reverse rotation of the third electric motor 286 causes the pinion gear 298 to rotate clockwise in FIG. 5 via the speed reducer 284, the drive gear 288, the intermediate gears 292, 296, the driven gear 304, and the rotating shaft 302.

  As a result, the rack 312 is moved downward, and the sheet-like product 100 on the table 262 and the table 262 except the sheet-like product 100 sucked by the suction port 141 is lowered at a slow speed. By this downward movement, the sheet-like product 100 sucked into the suction port 141 and the uppermost sheet-like product 100 on the table 262 are separated from each other by a predetermined distance. Further, since the table 262 moves at a slow speed, no adhesive force due to negative pressure is generated between the sucked sheet-like product 100 and the table 262. Therefore, the lower sheet-like product 100 that is in close contact with the sucked sheet-like product 100 moves downward as the table 262 descends, and only the sucked sheet-like product 100 is continuously sucked into the suction port 141. The

  The predetermined distance is a distance at which the uppermost sheet-like product 100 of the table 262 is not sucked after the sheet-like product 100 sucked into the suction port 141 is sent out. After a time sufficient for this separation in Step S11, the rotation of the third electric motor 286 is stopped and the movement of the table 262 is stopped in Step S12. Thereby, the separated state between the sucked sheet-like product 100 and the uppermost sheet-like product 100 on the table 262 is maintained.

  Next, in step S13, the second electric motor 262 of the first transport device 132 is rotated forward. The forward rotation of the second electric motor 262 causes the rotation shafts 172A and 172B to rotate counterclockwise via the toothed pulleys 224, 212, and 214 and the toothed belt 228, whereby the rollers 174a to 174a of the first transport device 132 are rotated. 174d is rotated clockwise in FIG. At the same time, the roller 194 of the second conveying device 135 is rotated counterclockwise in FIG. 2 via the toothed pulleys 216 and 218 and the toothed belt 228. The sucked sheet-like product 100 is moved in the left lateral direction in FIG. 2 by frictional contact with the rollers 174 a to 174 d and is sent toward the second transport device 135.

The fed sheet-like product 100 is sandwiched between the upper roller device 188 and the lower roller device 190 of the second transport device 135 and moved in the same direction, and is transported to the payout opening 178.
In this process, the relative area of the sheet-like product 100 with the suction port 141 of the first chamber 148 gradually decreases. In other words, the opening area of the suction port 141 of the first chamber 148 gradually increases, and the suction force with respect to the sheet-like product 100 rapidly decreases. However, since the entire surface of the suction port 141 of the second chamber 150 faces the sheet-like product 100, the sheet-like product 100 is continuously sucked into the suction port 141 of the second chamber 150. Accordingly, the sheet-like product 100 is conveyed in the lateral direction while maintaining its horizontal posture.

  In step S14, when the leading end of the sheet-like product 100 reaches the second conveying device 135, the contact 372 of the second sensor 370 is pushed up by the sheet-like product 100, the second sensor 370 is turned on, and the next step S15 Proceed to In step S15, the first electric motor 151 and the second electric motor 226 are stopped. That is, the suction airflow generation device 136 is stopped, and the suction function of the suction device 130 is stopped. Moreover, the 1st conveying apparatus 132 and the 2nd conveying apparatus 135 stop. This prevents the uppermost sheet-like product on the table 262 (in other words, suction of the sheet-like product 100 to be dispensed next).

  After a predetermined time has elapsed in step S16 and the normal pressures in the first chamber 148 and the second chamber 150 are restored, the second electric motor 262 is rotated forward in the next step S17. As a result, the roller 194 of the second conveying device 135 is rotated counterclockwise in FIG. 2, and the sheet-like product 100 is moved in the lateral direction by being sandwiched between the upper roller device 188 and the lower roller device 190 of the second conveying device 135. Is done. It is guided obliquely downward by the guide plate 206 and conveyed toward the payout opening 178. Then, it is guided obliquely downward by the guide plate 206 and protrudes from the discharge outlet 178.

  When the rear end of the sheet-like product 100 passes through the second transport device 135, the contact 372 moves downward, and the second sensor 370 outputs an OFF signal. When the OFF signal is determined in step S18, the process proceeds to the next step S19. In step S19, the second electric motor 262 is stopped. That is, the first transport device 132 and the second transport device 135 are stopped.

  In the next step S20, the third electric motor 286 is rotated forward, and the table 262 is raised in the same manner as in step S5. In step S21, it is determined whether the first sensor 250 is an ON signal. That is, when the upper position signal U from the first sensor 250 due to the uppermost sheet-like product 100 pushing up the contact 252 is determined, the process proceeds to step S22.

  In step S <b> 22, the third electric motor 286 is stopped, and the uppermost sheet-like product 100 is kept at an optimum interval with respect to the suction port 141 and waits for the next payout signal.

  The operations in steps S1 to S22 can be configured by software. In this way, by configuring the control device 380 with software, new parts do not increase, so that the cost is low.

  INDUSTRIAL APPLICABILITY The present invention is suitable for a sheet-like product dispensing device that automatically dispenses a sheet-like product used in a game field or the like. In particular, the present invention can be suitably used for a sheet-like product dispensing device in which products are stored in a sheet-like bag formed of a thin film.

DESCRIPTION OF SYMBOLS 100 Sheet-shaped goods 100B Sheet-shaped bag 100C Plate-shaped goods 102 Sheet-shaped goods delivery apparatus 104 Delivery part 106 Storage part 112, 114 Side frame 117 Front frame 118 Top frame 119 Subframe 120 Delivery frame 122 Base frame 124, 126 Side frame 124A 126 A Internal side frame 127 Front frame 128 Rear frame 130 Suction device 131 Transport device 132 First transport device 134 Leveling box 135 Second transport device 136 Suction airflow generating device 138 Base 138a, 138b Bottom portion 138c, 138d Side wall 138e Upper portion 139 Conveyance path 141 Suction port 142 Conveyance direction partition wall 148 First chamber 150 Second chamber 151 First electric motor 152 Axial fan 154 Casing 158 Step 16 0 First roller device 162 Second roller device 170 Side walls 172A, 172B Rotating shafts 174a to 174d Roller 175 Protrusion 175A Groove 176 Conveying body 177 Stopper 178 Discharge outlet 186 Discharge passage 188 Upper roller device 190 Lower roller device 191 Fixed shaft 192 Shaft 194 Roller 195 Protrusion 195A Groove 200 Lever 202 Shaft 204 Roller 206 Guide plate 206a Guide portion 206b Cover portion 210 Drive device 211 Cases 212, 214, 216, 218 Toothed pulley 220 Reducer 222 Output shaft 224 Toothed pulley 226 Second electric motor 228 Toothed belt 230 Tensioner 232 Toothed belt 234 Tensioner 250 First sensor 252 Contact 260 Reservoir 262 Table 262 Second electric motor 264 Moving device 280 Driving device 282 Transmission device 284 Reducer 286 Third electric motor 287 Output shaft 288 Drive gear 290 Fixed shaft 292, 296 Intermediate gear 294 Fixed shaft 298 Pinion gear 302 Rotating shaft 304 Driven gear 312 Rack 314 Pin 318 Fixed shaft 320 Pinch roller 322 Pipe 324 Guide Rail 326 Lifting device 330 Fall prevention device 332 Torque limiter 334 Fixed shaft 336 Input shaft 338 Gear 340 Control lever 342 Stopper 343 Notch 370 Second sensor 372 Contact 380 Control device 382 Main control circuit 384 ROM
386 CPU
388 RAM
400 Airflow blowing device 402 Airflow inlet 404 Opening 406 Airflow derivative 408 Cover F Discharge signal P Discharge instruction signal U Upper position signal

Claims (1)

A table that supports the sheet-like products stacked in a row;
A suction device that sucks the uppermost sheet-like product through a suction port disposed above the stacked sheet-like product;
An airflow blowing device for blowing an airflow between the uppermost sheet-like product sucked by the suction device and its lower-layer sheet-like product;
A transport device for transporting the sheet-like product sucked by the suction device toward a payout opening;
A sheet-like product dispensing device comprising :
A pair of side plates that are arranged with the suction device interposed therebetween and are suspended in parallel with the conveying direction of the sheet-like product at a predetermined interval;
A base disposed between the pair of side plates below the suction device and having a pair of side walls parallel to the pair of side plates and an upper portion extending between upper ends of the pair of side walls; ,
The air flow blowing device is
Extending along the conveying direction of the sheet-like product, both ends are arranged at the top of the base and the top is arranged above the suction device, and guides the airflow discharged from the suction device downward An airflow derivative,
Openings formed in a pair of side walls of the base along the conveying direction of the sheet-like product,
An air flow path that is formed between the side wall of the base and the side plate corresponding to the side wall and guides the air flow discharged from the suction device to the opening;
A sheet-like product dispensing device characterized by comprising:

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