JP5971803B2 - Coin wrapping equipment - Google Patents

Description

  The present invention relates to a coin wrapping apparatus for wrapping accumulated coins with wrapping paper.

  Conventionally, in a coin wrapping machine, coins of a predetermined number of wrapping units are stacked in the vertical direction, and the stacked coins are sandwiched between a plurality of wrapping rollers and rotated while being rotated between a wrapping roller and the stacked coins. The wrapping paper is supplied, and the wrapping paper is wound around the accumulated coins, and the upper and lower winding needles are moved from the upper and lower directions toward the end face of the accumulated coins, and the upper and lower ends of the wrapping paper are moved by the upper and lower winding needles. A wrapping coin is created by winding and caulking the upper and lower end faces of the accumulated coin (see, for example, Patent Document 1).

Japanese Patent No. 4040669

  However, when the upper and lower ends of the wrapping paper are wound by the upper and lower winding needles and swung on the upper and lower end surfaces of the stacked coins while the stacked coins are rotated by the packing roller, the winding needles are positioned at the end of the stacked coins. When reaching the end face of the coin to be contacted and coming into contact with it, the concavity and convexity of the pattern on the end face of the coin may be caught by the winding needle, and the rotation of the end face coin may stop.

  In this case, since the wrapping paper is rotating together with the accumulated coins other than the endmost coin, the stopped endmost coin and the wrapping paper are caused by the difference in rotational speed between the stopped endmost coin and the wrapping paper. The wrapping paper is cut around the outermost coin due to the friction with the outermost coin, and there is a possibility that a phenomenon referred to as so-called end cutting in which the outermost coin is separated from the wrapping coin may occur. Further, even if the endmost coin is not completely separated from the wrapping coin, a part of the wrapping paper may be cut, so that the endmost coin may be separated during handling of the wrapping coin.

  This invention is made | formed in view of such a point, and it aims at providing the coin packaging apparatus which can prevent packaging defects, such as a piece cut of a packaging coin.

The coin wrapping apparatus according to claim 1, wherein a plurality of wrapping rollers for winding wrapping paper around the accumulated coins while sandwiching and rotating the accumulated coins, a wrapping roller motor for rotationally driving the wrapping rollers, and the accumulated coins A winding needle that winds an end portion of the wrapping paper wound around the end face of the accumulated coin, a winding mechanism that moves the winding needle in the stacking direction of the stacked coin, and a winding needle wound around the stacked coin Further, when the end portion of the wrapping paper is wound around the end face of the accumulated coin by the winding needle, the winding needle is moved to the end of the accumulated coin while the packaging roller is rotated at a first rotational speed by the motor for packaging roller. The wrapping needle motor moves toward the end surface, and reaches the wrapping end position where the end of the wrapping paper finishes wrapping around the end surface of the stacked coins. In which and a control to that control means to rotate the rotational speed of the wrapping rollers at a slower rotational speed than the first rotational speed.

  The coin wrapping device according to claim 2 is the coin wrapping device according to claim 1, further comprising a winding end position detecting means for detecting that the winding needle has reached the winding end position. is there.

The coin wrapping apparatus according to claim 3 is the coin wrapping apparatus according to claim 2 , wherein the entrainment end position detecting means is moved from a fixed position of the entrainment needle toward the end face of the accumulated coins. An excess / deficiency detection means for detecting an excess / deficiency of the number of stacked sheets based on the amount of movement of the winding needle detected by the excess / deficiency detection means; Is detected .

The coin wrapping apparatus according to claim 4 is the coin wrapping apparatus according to any one of claims 1 to 3, wherein the control means causes the wrapping roller motor to rotate the wrapping roller slower than the first rotation speed. The winding needle is moved in a direction away from the end face of the accumulated coins while being rotated at the same time.

The coin wrapping apparatus according to claim 5 is the coin wrapping apparatus according to any one of claims 1 to 4, wherein the control means rotates the wrapping roller slower than the first rotation speed by the wrapping roller motor. While rotating at a speed, the wrapping coin in which the accumulated coins are wrapped with the wrapping paper is discharged between the wrapping rollers .

According to the coin wrapping apparatus of claim 1, when the end of the wrapping paper wound around the accumulated coin is wound around the end surface of the accumulated coin by the winding needle, the comparison is made until the winding needle reaches the winding end position. The accumulated coins and wrapping paper are rotated at a first rotational speed that is fast enough to improve the wrapping quality of the wrapping paper. By controlling to rotate at a rotation speed slower than the rotation speed of the wrapping paper, the wrapping paper is prevented from being cut even if the rotation of the endmost coin caught on the winding needle stops, and packaging such as cutting of the wrapping coin Defects can be prevented.

According to the coin wrapping device of claim 2, in addition to the effect of the coin wrapping device of claim 1, the wrapping end position detecting means detects that the wrapping needle has reached the wrapping end position, The rotational speed of the packaging roller can be switched to a rotational speed that is slower than the first rotational speed.

According to the coin wrapping apparatus of the third aspect, in addition to the effect of the coin wrapping apparatus of the second aspect , the winding needle is wound based on the movement amount of the winding needle detected by the excess / deficiency detecting means. By detecting that the end position has been reached, no special detection means is required to detect that the winding needle has reached the end position, and the excess / deficiency detection means can also be used .

According to the coin wrapping device according to claim 4, in addition to the effect of the coin wrapping device according to any one of claims 1 to 3, the accumulated coins and wrapping paper are also collected after the winding needle reaches the winding end position. When the winding needle is moved away from the end face of the accumulated coin by rotating at a rotation speed slower than the first rotation speed , the winding needle is removed from the winding portion of the wrapping paper. Thus, the wrapping portion of the wrapping paper can be prevented from being damaged .

According to the coin wrapping apparatus of claim 5, in addition to the effect of the coin wrapping apparatus of any one of claims 1 to 4, the accumulated coins and the wrapping paper can be collected even after the winding needle reaches the winding end position. By rotating at a rotation speed slower than the first rotation speed, the wrapping coins can be discharged in a stable posture when discharging the wrapping coins in which the accumulated coins are wrapped with the wrapping paper from between the wrapping rollers .

The timing chart of the winding operation by the coin wrapping apparatus showing one embodiment of the present invention is shown in (a), and the timing chart of the winding operation in the comparative example is shown in (b). It is a perspective view of a coin wrapping apparatus same as the above. It is a top view of a coin wrapping apparatus same as the above. It is a perspective view which shows the positional relationship of the winding needle | hook and wrapping paper of a coin packaging apparatus same as the above. It is sectional drawing which shows the winding process of the wrapping paper by the winding needle | hook of a coin packaging apparatus same as the above. It is sectional drawing in which the winding needle | hook of the coin wrapping apparatus same as the above reached | attained the end surface of the accumulation coin. It is a block diagram of a coin wrapping apparatus same as the above. It is a table | surface which shows the test result of the cutting condition of the wrapping paper in various rotation speeds of the accumulation | storage coin and wrapping paper in the state which stopped rotation of the coin of the endmost part of the accumulation | storage coin of a coin packaging apparatus same as the above.

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS.

  2 and 3 show a coin wrapping apparatus 10. This coin wrapping apparatus 10 accepts loose coins and feeds them one by one, a transport passage 12 for transporting coins fed from the feed portion 11, and a coin transported to the end of the transport passage 12 A stacking unit 13 that stacks upward from the lower side, a stacking unit 14 that wraps a stack of coins C in which a predetermined number of units of coins are stacked in the stacking unit 13 with a wrapping paper P, and a wrapping paper P on the wrapping unit 14 A wrapping paper supply unit 52 (see FIG. 7) to be supplied, a winding mechanism 15 that wraps the upper and lower ends of the wrapping paper P to the upper and lower ends of the accumulated coin C, and one wrapping coin per rotation. Thus, a cam shaft 16 that controls the operation of each mechanism of the coin wrapping apparatus 10 in the packaging process is provided.

  The feeding unit 11 includes a rotating disk 18 and a peripheral wall 19 disposed around the rotating disk 18. The loose coins are received on the rotary disk 18 inside the peripheral wall 19, and the coins are fed out one by one to the transport passage 12 by the rotation of the rotary disk 18.

  The conveyance path 12 conveys coins fed from the feeding unit 11 by a conveyance belt (not shown) disposed above the path. The passage width of the conveyance passage 12 is adjusted in accordance with the coin diameter of the denomination to be wrapped. For coins of a larger denomination than the packaging denomination, entry from the feeding section 11 to the conveyance passage 12 is restricted, and the packaging Coins having a smaller denomination than the denomination are excluded from an exclusion port 12a provided on the passage surface of the transport passage 12. The transport passage 12 includes a passage detection sensor S1 that detects the passage of coins sent from the transport passage 12 to the stacking unit 13, a count sensor S2 that counts the number of coins sent from the transport passage 12 to the stacking unit 13, and a passage detection sensor. A stopper 20 or the like for stopping a coin next to a predetermined number of coins fed from the transport path 12 to the stacking unit 13 based on the detection of S1 is disposed.

  The stacking unit 13 is formed between the three packaging rollers 21a, 21b, and 21c of the packaging unit 14. An accumulation roller 22 is disposed at the bottom of the accumulation unit 13. By the rotation of the accumulation roller 22, the coins fed from the conveyance path 12 are taken into the lower part of the accumulation part 13, and the rear end of the coins fed into the lower part of the accumulation part 13 is raised from the path surface of the conveyance path 12. Then, the tip in the feeding direction of the coin to be subsequently fed is taken into the lower side of the coin located at the lower part of the stacking unit 13. In this way, coins are accumulated in the accumulation unit 13 from the lower side to the upper side.

  Further, the packaging unit 14 raises the accumulated coin C in which the coins for the number of packaging units are accumulated in the accumulating unit 13 to a predetermined packaging position by the support rod 23, and collects the coins by the three packaging rollers 21a, 21b, and 21c. The circumferential surface of C is sandwiched and rotated, and the wrapping paper P supplied from the wrapping paper supply unit is wound around the circumferential surface of the accumulated coins C. By the winding mechanism 15, the upper and lower end portions of the wrapping paper P wound around the accumulated coin C are wound and crimped to the upper and lower end surfaces of the accumulated coin C to form a wrapping coin.

  Then, the accumulation roller 22, the support rod 23, and the like are retracted from the lower position of the packaging unit 14, and the packaging coins formed by the packaging unit 14 can be discharged downward.

  The wrapping rollers 21b and 21c can be moved toward and away from the wrapping roller 21a, and the positions of the wrapping rollers 21b and 21c with respect to the wrapping roller 21a and the position of the accumulation roller 22 are adjusted according to the wrapping denomination. Is done. The packaging roller 21c is fixed at the time of packaging and moves only when the packaging denomination is set.

  The winding mechanism 15 includes upper and lower saddle-shaped winding needles 25a and 25b, and winding needle moving means 26 that moves the upper and lower winding needles 25a and 25b.

  As shown in FIGS. 4 to 6, the winding needle 25 a includes a shaft portion 28 and a winding portion 29 bent in a substantially U shape from the tip of the shaft portion 28. On the inner surface of the winding part 29 at the tip of the winding part 29, there is formed a claw part 29a that curves and projects in a hook shape so as to wind the end of the wrapping paper P inside the winding part 29. Yes. 4 to 6 illustrate the structure related to the upper winding needle 25a, the structure related to the lower winding needle 25b is also configured in the same manner only by reversing the upper and lower surfaces. ing.

  As shown in FIGS. 2 and 3, the winding needle moving means 26 includes upper and lower supports 31a and 31b that support the upper and lower winding needles 25a and 25b, respectively. The upper and lower supports 31a and 31b are respectively attached to the tips of the upper and lower arms 32a and 32b, and the upper and lower arms 32a and 32b are supported so as to be slidable in the vertical direction with respect to the swing frame 33. The upper and lower arms 32a and 32b are biased in a direction approaching each other by, for example, a spring.

  The swing frame 33 is formed in a substantially U shape with its upper and lower edges bent, and a plurality of slide shafts 34 are attached between the upper and lower edges of the swing frame 33, and arms 32a and 32b are attached to these slide shafts 34. It is slidably mounted in the vertical direction. The swing frame 33 is supported so as to be able to rotate in a horizontal direction around a rotation shaft 35 penetrating the upper and lower edges of the swing frame 33, and the winding needles 25a and 25b are wrapped by a spring or the like. It is urged to turn toward the direction of approaching.

  A cam shaft 16 provided with cams 36a and 36b is disposed in the vicinity of the swing frame 33, and levers 38a for moving the upper and lower arms 32a and 32b in the vertical direction following the cams 36a and 36b, respectively. 38b is arranged. The levers 38a and 38b are supported at their base ends so as to be swingable in the vertical direction by horizontal support shafts 39a and 39b whose positions are fixed, and cam rollers 40a and 40b that contact the cams 36a and 36b are attached to the intermediate portions. The pressing rollers 41a and 41b are attached to the arms 32a and 32b. The upper lever 38a is configured such that the cam roller 40a is in contact with the upper surface of the cam 36a, and the push roller 41a is in contact with the lower surface of the upper arm 32a, whereby the upper arm 32a is urged downward. Regulating the decline of The lower lever 38b includes a lower arm that is biased upward by the cam roller 40b being in contact with the lower surface of the cam 36b and the pushing roller 41b being in contact with the upper surface of the lower arm 32b. The rise of 32b is regulated. As the cam shaft 16 rotates once in the packaging process, the upper and lower levers 38a and 38b swing along the cams 36a and 36b, and the upper and lower winding needles 25a and 25b move in the vertical direction.

  Further, a cam 36 c is attached to the cam shaft 16, and a cam roller 42 that can come into contact with the cam 36 c is attached to the swing frame 33. In the state where the cam 36c pushes the cam roller 42, the winding needles 25a and 25b are rotated so as to be separated from the packaging portion 14, and the cam during one rotation of the cam shaft 16 in the packaging process. During the period in which 36c does not push the cam roller 42, the winding needles 25a, 25b are moved to the packaging portion 14 by urging the swing frame 33 to enable the wrapping operation of the wrapping paper P.

  The cam shaft 16 controls the operation of each mechanism of the coin wrapping apparatus 10 so as to create one wrapping coin by one rotation. In addition to the cams 36a, 36b, 36c described above, for example, a wrapping A plurality of cams such as a cam for controlling the movement of the roller 21b and a cam for controlling the movement of the support rod 23 are attached.

  Note that the wrapping paper P is formed of a material such as polyethylene or paper, for example, and is configured such that the strength in the stacking direction is lower than the circumferential direction of the stacked coins C depending on the fiber direction, for example, when unwrapping It is easy to cut in the circumferential direction.

  FIG. 7 shows a block diagram of the coin wrapping apparatus 10. The coin wrapping apparatus 10 includes a control means 50 that controls the coin wrapping apparatus 10. Connected to the control means 50 is an excess / deficiency detection means 51 as a winding end position detection means for detecting an excess or deficiency in the number of accumulated coins C to be packed in the packaging unit 14. Then, a wrapping paper supply unit 52 that supplies the wrapping paper P by the control means 50, a wrapping roller motor 53 that rotationally drives the wrapping rollers 21a, 21b, and 21c, a camshaft motor 54 that rotationally drives the camshaft 16, and the like To control. Note that the control means 50 controls other mechanisms of the coin wrapping apparatus 10, but is not shown in FIG.

  The excess / deficiency detection means 51 includes an encoder that measures the amount of movement that moves from the fixed position, which is the standby position before the winding operation of the winding needles 25a and 25b, toward the end face of the accumulated coin C, and based on the amount of movement by the encoder. The length of the accumulated coins C that are different for each denomination is detected in the accumulation direction, and the detected length of the accumulated coins C is compared with the reference length range of accumulated coins that is set in advance for the denomination. Further, it is configured to detect an excess or deficiency of the number of accumulated coins C.

When the end of the wrapping paper P wound around the accumulated coin C is wound around the end surface of the accumulated coin C by the winding needles 25a, 25b, the control means 50 uses the wrapping roller motor 53 to wrap the wrapping rollers 21a, 21b, 21c. Is moved at a first rotation speed (for example, 2000 rpm) and the winding needles 25a and 25b are moved toward the end face of the accumulated coin C, and the winding needles 25a and 25b move the end of the wrapping paper P over the accumulated coin C. A function of reducing the rotational speed of the packaging rollers 21a, 21b, and 21c to a second rotational speed (for example, 800 rpm) lower than the first rotational speed by the packaging roller motor 53 by reaching the winding end position where the winding is finished on the end surface. the has.

  Further, the control means 50 moves the winding needles 25a, 25b away from the end face of the accumulated coin C while rotating the packaging rollers 21a, 21b, 21c by the packaging roller motor 53 at the second rotational speed. In other words, it has a function of discharging the wrapping coins in which the accumulated coins C are wrapped with the wrapping paper P from between the wrapping rollers 21a, 21b, 21c.

  Further, the control means 50 has a function of detecting that the winding needles 25a and 25b have reached the winding end position based on the movement amounts of the winding needles 25a and 25b detected by the excess / deficiency detection means 51.

  Next, the operation of the coin wrapping apparatus 10 will be described.

  2 and 3, coins are fed one by one from the feeding section 11 to the transport path 12, and the coins fed from the transport path 12 to the accumulating section 13 are moved upward from the lower side between the three packaging rollers 21a, 21b, 21c. It accumulates in order toward. After the coins for the number of wrapping units are accumulated in the accumulating unit 13, the accumulated coins C are raised to a predetermined packaging height position in the packaging unit 14, and the accumulated coins C are packaged with the wrapping paper P, and the created wrapping coins are encased in the packaging unit. Release downward from 14.

  In the wrapping unit 14, the cam shaft 16 makes one rotation every time one wrapping coin is produced, and the accumulated coins C are collected by the three wrapping rollers 21a, 21b, and 21c during one rotation of the cam shaft 16. While being sandwiched and rotated, the wrapping paper P having a predetermined length is supplied from the wrapping paper supply unit 52 between the three wrapping rollers 21a, 21b, 21c and the accumulated coins C, and the wrapping paper is provided on the circumferential surface of the accumulated coins C. P is wound, and the upper and lower ends of the wrapping paper P wound around the circumferential surface of the accumulated coin C are wound by the upper and lower winding needles 25a and 25b of the winding mechanism 15 and crimped to the upper and lower end surfaces of the accumulated coin C ( 5 and FIG. 6), the excess / deficiency detection means 51 determines whether the number of accumulated coins C is excessive or insufficient based on the movement amount of the upper and lower winding needles 25a, 25b. When the caulking is finished, the upper and lower winding needles 25a, 25b are retracted to the initial position, and then the space between the three packaging rollers 21a, 21b, 21c is opened to release the packaging coins downward. The wrapping coins released downward from the wrapping unit 14 are distributed and processed in corresponding post-processes depending on whether the number of stacked sheets is excessive or insufficient.

  The wrapping operation of the wrapping paper P by the specific wrapping mechanism 15 is controlled according to the rotation of the cam shaft 16, and swings around the rotating shaft 35 in the direction in which the swing frame 33 approaches the packaging portion 14. Then, the leading ends of the supports 31a and 31b abut against the peripheral surface of the accumulated coin C through the space between the wrapping rollers 21a and 21b, and the upper and lower winding needles 25a and 25b are positioned and arranged in the upper and lower areas of the wrapping paper P. Thereafter, the upper and lower winding needles 25a and 25b move closer to each other along the vertical direction, and the upper and lower winding needles 25a and 25b wind up the upper and lower ends of the wrapping paper P rotating together with the stacked coins C to collect the coins. It caulks to the upper and lower end faces of C (see FIGS. 5 and 6). Thereafter, the upper and lower winding needles 25a and 25b move away from each other along the vertical direction and come off the winding portion of the wrapping paper P, and the swing frame 33 is separated from the packaging portion 14 about the rotation shaft 35. Swings back to the initial position.

  When the end of the wrapping paper P is rolled and crimped to the end face of the accumulated coin C, the tips of the winding needles 25a and 25b moving toward the end face of the accumulated coin C reach the end face of the accumulated coin (FIG. 6). ), The movement of the winding needles 25a, 25b stops, but the movement of the levers 38a, 38b that moved the winding needles 25a, 25b continues until the camshaft 16 reaches a predetermined rotation angle. The pushing rollers 41a and 41b of the levers 38a and 38b are separated from the arms 32a and 32b, and the tips of the winding needles 25a and 25b are held in contact with the end faces of the accumulated coins C by springs. In addition, when the levers 38a and 38b start moving in the direction opposite to the winding direction, only the levers 38a and 38b first move, and the pushing rollers 41a and 41b come into contact with the arms 32a and 32b. Then, the levers 38a and 38b and the arms 32a and 32b move integrally, and the tips of the winding needles 25a and 25b are separated from the end face of the accumulated coin C.

  1A and 1B show timing charts of the winding operation by the winding mechanism 15. FIG. FIG. 1A is a timing chart of the winding operation in the control of the present embodiment, and FIG. 1B is a timing chart of the winding operation in the conventional control which is a comparative example. The winding state indicates the amount of movement between the fixed positions of the winding needles 25a and 25b and the winding end position.

  First, referring to FIG. 1B, the winding operation in the conventional control will be described.

  During the wrapping process including the wrapping process and the wrapping process of the wrapping paper P, the wrapping rollers 21a, 21b, and 21c are rotated at a constant high speed, for example, 2000 rpm. When the cam shaft 16 that rotates once during the packaging process reaches the rotation angle a1, the winding needles 25a and 25b start moving from the fixed position toward the end face of the accumulated coin C, and the leading ends of the winding needles 25a and 25b By reaching the end face of the accumulated coin C (the arrival point A at a different timing depending on the length of the accumulated coin C for each denomination. Also the rotation angle a2 of the camshaft 16), the end face of the accumulated coin C The movement of the winding needles 25a and 25b that are in contact with is stopped at the winding end position.

  Further, when the camshaft 16 is rotated by a predetermined angle with the tips of the winding needles 25a and 25b being in contact with the end face of the accumulated coin C, the winding needles 25a and 25b are directed away from the end face of the accumulated coin C. The leading ends of the winding needles 25a and 25b are separated from the end face of the accumulated coin C (the separation point B at a different timing depending on the length of the accumulated coin C for each denomination. This is also the rotation angle a3.) The entrainment needles 25a, 25b return to the height of the fixed position (the rotation angle a5 of the cam shaft 16). Thereafter, the winding needle 25a (including the winding needle 25b) separates from the packaging portion 14, and the accumulation roller 22, the support rod 23, etc. retreat from the lower area between the packaging rollers 21a, 21b, 21c, and the packaging roller 21a , 21b and 21c are opened, and the wrapping coins are discharged downward.

  Further, when the control means 50 detects that the rotation angle of the cam shaft 16 has reached a preset rotation angle a4 based on rotation angle detection means such as an encoder that detects the rotation angle of the cam shaft 16, The packaging roller motor 53 is stopped. As a result, the rotation of the packaging rollers 21a, 21b, and 21c gradually decreases and stops.

  Since the wrapping process of the wrapping paper P is controlled based on the rotation angle of the cam shaft 16 regardless of the denomination, the reaching point A where the wrapping needles 25a and 25b reach the end face of the accumulated coin C is reached. From time T to the separation point B when the winding needles 25a and 25b are separated from the end face of the accumulated coin C, the tips of the winding needles 25a and 25b are in contact with the end face of the accumulated coin C, that is, the end face of the coin. There is a possibility that the concavities and convexities of the pattern of the outermost coin are caught on the winding needles 25a and 25b and the rotation of the outermost coin is stopped. When the rotation of the endmost coin stops, the difference in rotation speed between the stopped endmost coin and the wrapping paper P rotating at high speed is large. The wrapping paper P is cut around the outermost coin due to friction with the wrapping paper P, and there is a possibility that a so-called end cutting phenomenon occurs in which the outermost coin is separated from the wrapping coin. Moreover, even if the endmost coin is not completely separated from the wrapping coin, the wrapping paper P may be partially cut, so that the endmost coin may be separated during handling of the wrapping coin.

  Next, referring to FIG. 1A, the winding operation of the present embodiment will be described.

  In the initial stage of the packaging process including the winding process of the wrapping paper P, the packaging rollers 21a, 21b, and 21c are rotated at a high speed, for example, at a first rotational speed of 2000 rpm. When the cam shaft 16 that rotates once during the packaging process reaches the rotation angle a1, the winding needles 25a and 25b start moving from the fixed position toward the end face of the accumulated coin C, and the leading ends of the winding needles 25a and 25b By reaching the end face of the accumulated coin C (the arrival point A at a different timing depending on the length of the accumulated coin C for each denomination. Also the rotation angle a2 of the camshaft 16), the end face of the accumulated coin C The movement of the winding needles 25a and 25b that are in contact with is stopped at the winding end position. At this time, since the rotational speed of the wrapping paper P is relatively fast, the wrapping paper P can be neatly wound by the wrapping needles 25a and 25b, and the quality of the wrapping portion can be improved.

  When the control means 50 detects that the winding needles 25a, 25b have reached the winding end position based on the movement amount of the winding needles 25a, 25b detected by the excess / deficiency detection means 51, the packaging rollers 21a, 21b, The rotation speed of 21c is switched from the high speed rotation to the low speed rotation of, for example, 800 rpm which is the second rotation speed (low speed rotation change point X).

  Further, when the camshaft 16 is rotated by a predetermined angle with the tips of the winding needles 25a and 25b being in contact with the end face of the accumulated coin C, the winding needles 25a and 25b are directed away from the end face of the accumulated coin C. The leading ends of the winding needles 25a and 25b are separated from the end face of the accumulated coin C (the separation point B at a different timing depending on the length of the accumulated coin C for each denomination. This is also the rotation angle a3.) The entrainment needles 25a, 25b return to the height of the fixed position (the rotation angle a5 of the cam shaft 16). Thereafter, the winding needle 25a (including the winding needle 25b), the accumulation roller 22 and the support rod 23 are retracted from the lower area between the packaging rollers 21a, 21b, 21c, and the interval between the packaging rollers 21a, 21b, 21c is increased. Open and release the wrapping coins downward.

  By the way, if it is detected that the winding needles 25a, 25b have reached the winding end position, the rotation of the packaging rollers 21a, 21b, 21c may be stopped. When the coin C is moved away from the end face of the coin C, the hook-like claws 29a of the winding needles 25a and 25b are caught on the winding portion of the wrapping paper P. There is a risk of tearing or unwrapping the wrapping paper P, and when the wrapping coins are released downward with the spacing between the wrapping rollers 21a, 21b, 21c, the behavior of the wrapping coins becomes unstable. There is a risk of adversely affecting processing in the processing.

  Therefore, even after the winding needles 25a and 25b reach the winding end position, the winding rollers 21a, 21b and 21c are rotated at the second rotational speed, so that the winding needles 25a and 25b are moved to the wrapping paper P. When removing the wrapping coin from the wrapping rollers 21a, 21b, and 21c, it is possible to prevent the wrapping portion of the wrapping paper P from being damaged by the claw portions 29a of the winding needles 25a and 25b. Packaging coins can be discharged in a stable posture.

  Furthermore, when the control means 50 detects that the rotation angle of the camshaft 16 has reached a preset rotation angle a6 based on rotation angle detection means such as an encoder that detects the rotation angle of the camshaft 16, The wrapping roller motor 53 is stopped, and the rotation of the wrapping rollers 21a, 21b, and 21c is stopped by an electric or mechanical brake means.

As described above, the winding process of the wrapping paper P is controlled based on the rotation angle of the camshaft 16 regardless of the denomination, so that the winding needles 25a and 25b reach the end face of the accumulated coin C. During the period T from the reaching point A to the separation point B at which the winding needles 25a, 25b are separated from the end face of the accumulated coin C, the tips of the winding needles 25a, 25b are the end face of the accumulated coin C, that is, the endmost coin. There is a possibility that the concavity and convexity of the pattern of the outermost coin is caught on the winding needles 25a and 25b and the rotation of the outermost coin is stopped. When the rotation of the endmost coin stops, the difference in rotation speed between the stopped endmost coin and the wrapping paper P is the rotation speed of the wrapping rollers 21a, 21b, and 21c from the arrival point A during the period T. Gradually decreases during a short period t from the high-speed rotation to the low-speed rotation change point X at which the low-speed rotation is switched, and remains small after the low-speed rotation change point X. Therefore, even when the rotation of the endmost coin stops, the difference between the rotation speed of the stopped endmost coin and the wrapping paper P is reduced, and the friction between the stopped endmost coin and the wrapping paper P is reduced. This can reduce the risk of the wrapping paper P being cut around the outermost coin. As a result, it is possible to reduce the occurrence of a phenomenon called so-called “cutting” in which the outermost coin is separated from the wrapping coin .

  Moreover, the result of having tested the relationship which the packaging paper P cuts with respect to the difference in the rotational speed of the packaging paper P is shown in FIG. In the test, the outermost coin was fixed to the winding needle so as not to rotate, and the case where the upper surface of the accumulated coin C during the wrapping of the wrapping paper P was pressed with an upper presser was performed.

  As a result, a part or most of the wrapping paper P was cut off at a high speed of 1000 rpm or higher, but the wrapping paper P was not cut off at a low speed of 800 rpm or lower.

  Therefore, it is understood that if the rotation speed of the accumulated coin C and the wrapping paper P together with the wrapping rollers 21a, 21b, and 21c is set to a low speed rotation of 800 rpm or less, the wrapping paper P can be prevented from being cut even if the outermost coin stops. It was. Therefore, the second rotation speed is preferably 800 rpm or less.

In the coin wrapping apparatus 10 configured as described above, when the end of the wrapping paper P wound around the accumulated coin C is wound around the end surface of the accumulated coin C by the winding needle, the winding needles 25a and 25b are at the winding end positions. Until the wrapping needles 25a and 25b reach the wrapping end position while rotating the accumulated coins C and the wrapping paper P at a relatively fast first rotation speed to achieve the wrapping quality of the wrapping paper P. stacked coins C and wrapping paper rotation of P is reduced to first slow second rotational speed than the rotational speed of the winding inclusive needles 25a, even stops the rotation of the coin in the uppermost end caught in 25b wrapping paper by P can be prevented from being cut, and packaging defects such as wrapping of coins can be prevented.

  Further, even after the winding needles 25a and 25b reach the winding end position, the winding coins 25a and 25b are rotated at the second rotational speed so that the winding needles 25a and 25b are moved to the accumulated coins C. When the wrapping needles 25a and 25b are removed from the wrapping portion of the wrapping paper P by moving in a direction away from the end face, the wrapping portion of the wrapping paper P can be prevented from being damaged by the wrapping needles 25a and 25b.

  Further, after the winding needles 25a and 25b reach the winding end position, the stacked coins C and the wrapping paper P are rotated at the second rotational speed so that the stacked coins C are wrapped with the wrapping paper P. When coins are released from between the packaging rollers 21a, 21b, 21c, the packaging coins can be released in a stable posture.

  Further, by detecting that the winding needles 25a, 25b have reached the winding end position based on the movement amount of the winding needles 25a, 25b detected by the excess / deficiency detection means 51, the winding needles 25a, No special detection means is required to detect that 25b has reached the winding end position, and the excess / deficiency detection means 51 can also be used.

  Note that the control from the first rotational speed to the second rotational speed of the packaging rollers 21a, 21b, 21c in the wrapping process of the wrapping paper P as described above may be similarly performed for all handling denominations. Although it is good, you may change according to a money type. The wrapping paper P is relatively easy to cut, for example, in denominations of 50 yen, 100 yen, and 500 yen, in which the accumulated length of the accumulated coins C is long, and the winding needle 25a, The period when the tip of 25b reaches the end face of the wrapping coin C and the rotation of the outermost coin stops is relatively long, and the wrapping paper P is easily cut. On the other hand, for the denominations of 1 yen, 5 yen and 10 yen, for example, where the accumulated length of the accumulated coins C is relatively short, the tips of the winding needles 25a and 25b reach the end face of the wrapping coins C in the winding process. However, the leading edge of the winding needles 25a and 25b may not reach the end surface of the wrapping coin C due to the thickness of the wrapping portion of the wrapping paper P, and the rotation of the outermost coin is temporarily stopped. In this case, the wrapping paper P is difficult to cut. Therefore, for the denominations of 50 yen, 100 yen and 500 yen, control is performed from the first rotation speed to the second rotation speed described above, and the denominations of 1 yen, 5 yen and 10 yen are the first. Control from the rotational speed to the second rotational speed may or may not be performed. Further, when the control from the first rotational speed to the second rotational speed is performed with denominations of 1 yen, 5 yen, and 10 yen, the timing at which the winding needles 25a and 25b reach the winding end position. The change may be made at a uniform timing based on the rotation angle of the camshaft 16 instead of the change at.

10 Coin packaging equipment
15 Winding mechanism
21a, 21b, 21c Packaging roller
25a, 25b winding needle
50 Control means
51 Excess / deficiency detection means as end position detection means
53 Motor for packaging rollers C Accumulated coins P Wrapping paper

Claims (5)

A plurality of packaging rollers for winding wrapping paper around the accumulated coins while sandwiching and rotating the accumulated coins;
A packaging roller motor that rotationally drives the packaging roller;
A winding mechanism for winding an end portion of the wrapping paper wound around the accumulated coin around the end surface of the accumulated coin, and moving the winding needle in the accumulation direction of the accumulated coin;
When the end portion of the wrapping paper wound around the accumulated coin is wound around the end surface of the accumulated coin by the winding needle, the winding roller is rotated at a first rotation speed by the wrapping roller motor. The wrapping roller motor moves the needle toward the end face of the accumulated coins, and the wrapping needle reaches the winding end position where the end of the wrapping paper finishes being wound on the end face of the accumulated coins. coin wrapping apparatus characterized by and a control to that control means to rotate the rotational speed of the roller at a slower rotational speed than the first rotational speed. The coin wrapping apparatus according to claim 1, further comprising a winding end position detecting unit that detects that the winding needle has reached the winding end position. The winding end position detecting means is an excess / deficiency detecting means for detecting an excess / deficiency of the number of stacked sheets based on a moving amount moving from a fixed position of the winding needle toward an end face of the stacked coins,
The control means detects that the winding needle has reached the winding end position based on the movement amount of the winding needle detected by the excess / deficiency detection means.
The coin wrapping apparatus according to claim 2. The control means moves the winding needle in a direction away from the end face of the accumulated coins while rotating the packaging roller at a rotational speed slower than the first rotational speed by the packaging roller motor. The coin wrapping apparatus according to any one of claims 1 to 3 . The control means releases the wrapping coins in which the accumulated coins are wrapped with the wrapping paper from between the wrapping rollers while the wrapping roller is rotated at a rotational speed slower than the first rotational speed by the wrapping roller motor. coin wrapping apparatus of claims 1 to 4 any one wherein a.

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