Assembly and method for handling a string of consecutive medicament bags

Abstract

The invention relates to an assembly (1) for handling a string (9) of medicament bags, wherein the assembly (1) comprises a packaging device for packaging discrete medicaments in respective medicament bags and a winding device (3) for winding the string on a spool (4), wherein the assembly further comprises a control unit (5) operatively connected to the packaging device (2) and the winding device (3), wherein the control unit is arranged to: - receive one or more packaging status signals from the packaging device (2) and send one or more winding control signals to the winding device (3) in response to the one or more packaging status signals; and / or - receive one or more winding status signals from the winding device (3) and send one or more packaging control signals to the packaging device (2) in response to the one or more winding status signals.

Description

BACKGROUND

[0001] The present invention relates to an assembly for handling a string of consecutive medicament bags. The present invention further relates to a method for handling a string of consecutive medicament bags using the assembly. SUMMARY

[0002] It is an object of the present invention to provide an assembly and a method for handling a string of consecutive medicament bags in which handling of the string of consecutive medicament bags can be improved.

[0003] According to a first aspect, there is provided an assembly for handling a string of consecutive medicament bags, wherein the assembly comprises: a packaging device for packaging discrete medicaments in respective medicament bags of the string; a winding device for receiving the string from the packaging device and winding the string on a spool; and a control unit operatively connected to the packaging device and the winding device, wherein the control unit is arranged to:

[0004] - receive one or more packaging status signals from the packaging device and send one or more winding control signals to the winding device in response to the one or more packaging status signals; and / or

[0005] - receive one or more winding status signals from the winding device and send one or more packaging control signals to the packaging device in response to the one or more winding status signals.

[0006] In other words, the control unit is operatively, electronically and / or functionally connected to provide a form of communication between the winding device and the packaging device. Depending on the system, this can be a wired or wireless communication. Thus, in response to a detected status of the packaging device, the control unit can control the winding device to take appropriate action and vice versa. For example, when a fault is detected at the winding device, the transport of the string through the packaging unit can be interrupted to prevent a large length of the string from accumulating between the packaging device and the winding device. Furthermore, the winding of a string of consecutive medicament bags on the spool can be automatically adapted to the output of the string from the packaging device. Similarly, the output of a string of consecutive medicament bags at the packaging device can be automatically adapted to the winding of the string on the spool. Thus, the string can be handled more reliably and / or excessive forces that can break or damage the string can be prevented.

[0007] The control unit is further arranged to determine, based on the one or more winding status signals, a winding status indicative of one or more of:

[0008] - an error in the transport of the string between the packaging device and the winding device;

[0009] - The difference between the output speed of the string at the packaging output of the packaging device and the winding speed of the string at the reel;

[0010] - The scroll is full; and / or

[0011] - Malfunction of the winding device.

[0012] For example, the control unit can be arranged to determine a first winding state based on one or more winding state signals, wherein the first winding state indicates an error in conveying the string between the packaging output and the reel. Specifically, the first winding state could indicate that the string is not properly connected to the reel or is not present at the winding device at all. In the case of the first winding state, the packaging device will continue to output a string of medicine bags without the string wound on the reel. Therefore, a section of the string will output onto the floor, creating a difficult-to-handle tangle. Furthermore, the string may be damaged in the process. The control unit can detect this state, allowing the control unit to take and / or guide appropriate actions.

[0013] Additionally or alternatively, the control unit may be arranged to determine a second winding state based on the one or more winding state signals, wherein the second winding state indicates that the winding speed at the spool is higher than the output speed of the string at the packaging output. This speed difference can stretch the string and eventually cause it to break or fracture. The control unit can detect this state, allowing it to take and / or guide appropriate actions.

[0014] Additionally or alternatively, the control unit may be arranged to determine a third winding state based on the one or more winding state signals, wherein the third winding state indicates that the winding speed at the spool is lower than the output speed of the string at the packaging output. In the third winding state, the tension in the string decreases. In particular, the string may sag, which could eventually cause the string to output onto the factory floor. This could potentially damage a string of medicine bags. The control unit can detect this state, allowing it to take and / or guide appropriate actions.

[0015] Additionally or alternatively, the control unit may be arranged to determine a fourth winding state based on the one or more winding state signals, wherein the fourth winding state indicates that the reel is full. When the reel is full, the string should be cut, and the front end of the resulting string should be attached to another reel. Accordingly, the full reel can be replaced with an empty reel. The control unit can detect this state, allowing the control unit to take and / or guide appropriate actions.

[0016] Additionally or alternatively, the winding device may be arranged to determine a fifth winding state based on the one or more winding state signals, wherein the fifth winding state indicates a fault in the winding device. The control unit can thus detect faults or errors in the winding device, enabling the control unit to take and / or guide appropriate actions.

[0017] In one embodiment, the control unit is programmed to generate a packaging control signal in response to a detected winding state, the packaging control signal including one or more of the following instructions:

[0018] -Stop the packaging device from conveying the string;

[0019] - Increase the output speed of this string at the packaging output; and / or

[0020] - Reduce the output speed of this string at the packaging output.

[0021] For example, the control unit can be arranged to send a first packaging control signal to the packaging device in response to determining a first winding state, wherein the first packaging control signal includes an instruction to stop the packaging device from conveying the string. The first packaging control signal generated by the control unit can control the packaging device to take appropriate actions, such as stopping the packaging device from conveying the string. Therefore, the aforementioned disadvantages can be avoided.

[0022] Additionally or alternatively, the control unit may be arranged to send a second packaging control signal to the packaging device in response to determining a fourth winding state, wherein the second packaging control signal includes an instruction to stop the packaging device from conveying the string. The control unit may further send a winding feedback signal to the winding device to stop winding the string onto the reel. Thus, when the reel is full, the conveying of the string can be automatically paused. This allows an operator or another device to replace the full reel and connect the string to another reel.

[0023] In another embodiment, the control unit is further programmed to generate a winding feedback signal sent back to the winding device in response to a detected winding state.

[0024] In another embodiment, the winding feedback signal includes one or more of the following instructions:

[0025] -Stop the winding device from winding the string;

[0026] - Increase the winding speed of the string at the spool;

[0027] - Reduce the winding speed of the string at the spool; and / or

[0028] - Reverse the winding direction of the reel.

[0029] For example, the control unit can be arranged to send a first winding feedback signal or another winding control signal to the winding device in response to determining a second winding state, wherein the first winding feedback signal or the other winding control signal includes an instruction to reduce the winding speed at the spool of the winding device. Therefore, the control unit can automatically take appropriate action to prevent the string from breaking or snapping.

[0030] Additionally or alternatively, the control unit may be arranged to send a second winding feedback signal or another winding control signal to the winding device in response to determining a third winding state, wherein the second winding feedback signal or the other control signal includes an instruction to increase the winding speed at the spool of the winding device. Thus, the control unit can automatically take appropriate action when a decrease in string tension is detected.

[0031] Additionally or alternatively, the control unit may be arranged to send a third winding feedback signal or another winding control signal to the winding device in response to determining a fifth winding state, wherein the third winding feedback signal or the other winding control signal includes an instruction to drive the spool to rotate in the opposite direction to the winding direction for a predetermined time interval. In other words, the string is at least partially unwound from the spool. Therefore, the tension in the string can be reduced. The unwinding of the string allows the operator to access the winding device. Furthermore, by reducing the tension in the string, the safety of the operator can be increased. Additionally, tearing of the string can be prevented.

[0032] In another embodiment, the winding device includes one or more sensors operatively connected to a control unit for detecting the presence or absence of a continuous string of medicine pouches. The sensors can detect the presence or absence of the string at corresponding locations along a string track. The detection of the presence or absence of the string by one of the sensors can serve as a winding status signal. The control unit can be arranged to detect the presence of the string at the winding device based on the winding status signal. Accordingly, the control unit can detect the winding status (such as one of the exemplary winding states described above) and can send a packaging control signal to the packaging device in response.

[0033] In one embodiment, the winding device includes a tension adjusting roller that defines at least a portion of the string trajectory between the packaging output and the reel. The tension adjusting roller is movable between a first position and a second position, wherein the tension adjusting roller is biased toward the first position, wherein the tension adjusting roller is arranged to shift toward the second position under the influence of the passing string, and wherein the one or more sensors include a tension adjusting roller sensor or a first sensor arranged to detect the presence of the tension adjusting roller at at least one of the first and second positions. The tension adjusting roller sensor may, for example, be a proximity sensor. In other words, the control unit can conveniently detect the absence of the string at the winding device based on the position of the tension adjusting roller.

[0034] For example, the control unit can be arranged to determine a first winding state when the tension adjustment roller sensor detects that the tension adjustment roller is present in a first position.

[0035] In another embodiment, the one or more sensors include a second sensor arranged to detect the presence or absence of the string along a desired string trajectory. The second sensor may be, for example, an optical sensor. The sensor along the desired string trajectory can conveniently detect the absence of the string and / or deviation of the string's path from the desired trajectory.

[0036] For example, the control unit can be arranged to determine the first winding state when the second sensor detects that the string is not present.

[0037] Additionally or alternatively, the control unit may be arranged to determine a second winding state when the second sensor detects the absence of the string and the tension adjustment roller sensor detects that the tension adjustment roller is not present in its first position. In other words, the increased tension in the string caused by the string's winding speed at the spool being greater than its output speed at the packaging output can be detected by the combined winding state signal from the first and second sensors.

[0038] Additionally or alternatively, the control unit may be arranged to determine a third winding state when the second sensor detects the presence of the string and the tension adjustment roller sensor detects the tension adjustment roller is present in its first position. Compared to the first winding state, the second sensor can detect the presence of the string at the winding device. However, the tension adjustment roller sensor can detect that the tension in the string is insufficient to displace the tension adjustment roller. Therefore, the control unit can reliably determine the third winding state. Furthermore, the control unit can reliably distinguish between the third winding state and the first winding state.

[0039] In another embodiment, the one or more sensors include a path sensor or a second sensor arranged to detect the presence or absence of a loop in the string outside (e.g., drooping below) the desired string trajectory. Optionally, the path sensor is an optical sensor. The path sensor can conveniently detect the presence of the loop.

[0040] When the desired string trajectory does not include the loop, the control unit can, for example, be arranged to determine a third winding state when the path sensor detects the presence of the loop in the string.

[0041] In another embodiment, the one or more sensors include a reel sensor or a third sensor arranged to detect the amount of a continuous string of medicine pouches wound on a reel. The reel sensor can be, for example, a force sensor for detecting the weight of the reel. Alternatively, the reel sensor can be a distance sensor for detecting the radius of the string wound on the reel. The control unit can be arranged to determine a fourth winding state when the detected amount of the string exceeds a predetermined threshold.

[0042] In another embodiment, the winding device further includes a winding driver for driving the spool to rotate and a torque sensor for measuring the torque of the winding driver. When the string is not coupled to the spool, the winding driver only rotates the spool, which may result in reduced torque. Therefore, the absence of a string at the spool can be easily detected. The control unit can be arranged to determine a first winding state when the torque of the winding driver is below a predetermined threshold.

[0043] In another embodiment, the control unit is arranged to determine the packaging status based on one or more packaging status signals, the packaging status indicating one or more of the following:

[0044] -The sealing unit of the packaging device is opened;

[0045] - An error occurred while conveying the string between the packaging unit and the winding unit;

[0046] - The difference between the output speed of the string at the packaging output of the packaging device and the winding speed of the string at the reel;

[0047] - The scroll is full; and / or

[0048] - Malfunction of the packaging equipment.

[0049] In one embodiment, the control unit is programmed to generate a winding control signal in response to a detected packaging state, the winding control signal including one or more of the following instructions:

[0050] -Stop the winding device from winding the string;

[0051] - Increase the winding speed of the string at the spool;

[0052] - Reduce the winding speed of the string at the spool; and / or

[0053] - Reverse the winding direction of the reel.

[0054] For example, the control unit can be arranged to send a first winding control signal to the winding device in response to determining a first packaging state, wherein the first winding control signal includes an instruction to stop the winding device from winding the string onto the spool. Therefore, the control unit can automatically or autonomously take appropriate action in response to the first packaging state. By stopping the winding of the string onto the spool, string tension or eventual breakage can be prevented.

[0055] In one embodiment, the control unit is further programmed to generate a packaging feedback signal to be sent back to the packaging device in response to a detected packaging status.

[0056] In another embodiment, the packaging feedback signal includes one or more of the following instructions:

[0057] -Stop the packaging device from conveying the string;

[0058] - Increase the output speed of this string at the packaging output; and / or

[0059] - Reduce the output speed of this string at the packaging output.

[0060] In another embodiment, the winding device includes a winding driver for driving a spool to rotate in the winding direction to wind the string onto the spool.

[0061] In another embodiment, the packaging device includes a packaging driver for conveying the string through the packaging device.

[0062] In another embodiment, the control unit includes: a non-transitory computer-readable medium including instructions for processing one or more winding status signals and / or one or more packaging status signals and, in response, generating corresponding one or more winding control signals and / or one or more packaging control signals; and a processing unit for executing the instructions.

[0063] According to a second aspect, the present invention relates to a method for manipulating a series of continuous pharmaceutical bags using components according to a first aspect of the invention, wherein the method comprises the following steps:

[0064] - Receive one or more packaging status signals from the packaging device, and in response to the one or more packaging status signals, send one or more winding control signals to the winding device; and / or

[0065] - Receive one or more winding status signals from the winding device, and send one or more packaging control signals to the packaging device in response to the one or more winding status signals.

[0066] In other words, this method involves communication between the winding device and the packaging device. Therefore, in response to a detected state of the packaging device, appropriate action can be taken at the winding device, and vice versa. Thus, winding a continuous string of medicine bags onto a spool can be adapted to output the string from the packaging device. Correspondingly, outputting a continuous string of medicine bags from the packaging device can be adapted to winding the string onto a spool. Therefore, the string can be manipulated more reliably. Furthermore, excessive forces that could cause the string to break or be damaged can be prevented.

[0067] In its embodiments, the method further includes the step of: determining a winding state indicating one or more of the following based on the one or more winding state signals:

[0068] - An error occurred while conveying the string between the packaging unit and the winding unit;

[0069] - The difference between the output speed of the string at the packaging output of the packaging device and the winding speed of the string at the reel;

[0070] - The scroll is full; and / or

[0071] - Malfunction of the winding device.

[0072] In another embodiment, the method further includes the step of generating a packaging control signal in response to a detected winding state, the packaging control signal including one or more of the following instructions:

[0073] -Stop the packaging device from conveying the string;

[0074] - Increase the output speed of this string at the packaging output; and / or

[0075] - Reduce the output speed of this string at the packaging output.

[0076] In another embodiment, the method includes stopping the packaging device from conveying the string in response to an indication that an incorrect winding has occurred during the conveying of the string between the packaging output and the reel. In the event of an error in conveying the string between the packaging output and the reel, the packaging device will continue to output a string of medicine bags without winding them onto the reel. Consequently, a section of the string will be output onto the floor, resulting in a difficult-to-handle tangle. Furthermore, the string may be damaged in the process. Stopping the packaging device from conveying the string is an appropriate action to prevent the aforementioned disadvantages.

[0077] In another embodiment, the method includes increasing the output speed of the string at the packaging output of the packaging device in response to a winding state indicating that the winding speed at the spool is higher than the output speed of the string. This speed difference can stretch the string and eventually cause it to break or fracture. Increasing the output speed at the spool can prevent the string from breaking or fractured.

[0078] In another embodiment, the method includes reducing the output speed of the string at the packaging output of the packaging device in response to a winding state indicating that the winding speed at the spool is lower than the output speed of the string. In this particular winding state, the string may sag, which could ultimately cause the string to output onto the factory floor. This could potentially damage a string of medicine bags. By reducing the output speed, sagging of the string can be prevented.

[0079] In another embodiment, the method includes stopping the packaging device from conveying the string in response to the reel being full. When the reel is full, the string should be cut, and the front end of the resulting string should be connected to another reel. Accordingly, the full reel can be replaced with an empty reel. The method also includes pausing the conveying of the string when the reel is full. This allows an operator or another device to replace the full reel and connect the string to another reel.

[0080] In another embodiment, the method further includes the steps of: generating a winding feedback signal in response to a detected winding state, and sending the winding feedback signal to a winding device. Optionally, the winding feedback signal includes one or more of the following instructions:

[0081] -Stop the winding device from winding the string;

[0082] - Increase the winding speed of the string at the spool;

[0083] - Reduce the winding speed of the string at the spool; and / or

[0084] - This reverses the winding direction of the reel. Therefore, in addition to or instead of the packaging control signal, a winding feedback signal can be sent to the winding device. Accordingly, appropriate actions can be taken at the packaging device, at the winding device, or at both the packaging device and the winding device in response to the detected winding state.

[0085] In another embodiment, the method includes reducing the winding speed at the spool in response to a winding state indicating that the winding speed at the spool is higher than the output speed of the string at the packaging output of the packaging device. This speed difference can stretch the string and ultimately cause it to break or fracture. Reducing the winding speed at the spool can prevent the string from breaking or fractured.

[0086] In another embodiment, the method includes increasing the winding speed at the spool in response to a winding state indicating that the winding speed at the spool is lower than the output speed of the string at the packaging output of the packaging device. In this particular winding state, the string may sag, which could ultimately cause the string to output onto the factory floor. This could potentially damage a string of medicine bags. Increasing the winding speed prevents the string from sagging.

[0087] In another embodiment, the method includes rotating the spool in a direction opposite to the winding direction for a predetermined time interval in response to a malfunction of the winding device. In other words, the string is at least partially unwound from the spool. This reduces tension in the string. The unwinding of the string allows an operator to access the winding device. Furthermore, reducing tension in the string increases the safety of the operator.

[0088] In another embodiment, the method includes the step of determining a packaging status based on the one or more packaging status signals, the packaging status indicating one or more of the following:

[0089] -The sealing unit of the packaging device is opened;

[0090] - An error occurred while conveying the string between the packaging unit and the winding unit;

[0091] - The difference between the output speed of the string at the packaging output of the packaging device and the winding speed of the string at the reel;

[0092] - The scroll is full; and / or

[0093] - Malfunction of the packaging equipment.

[0094] In its embodiments, the method further includes generating a winding control signal in response to a detected packaging state, the winding control signal including one or more of the following instructions:

[0095] -Stop the winding device from winding the string;

[0096] - Increase the winding speed of the string at the spool;

[0097] - Reduce the winding speed of the string at the spool; and / or

[0098] - Reverse the winding direction of the reel.

[0099] In another embodiment, the method includes stopping the winding device from winding the string onto the reel in response to a malfunction of the packaging apparatus. By stopping the winding of the string onto the reel, tensioning or eventual breakage of the string can be prevented.

[0100] In another embodiment, the method further includes the steps of: generating a packaging feedback signal in response to a detected packaging state and sending the packaging feedback signal back to the packaging device. Optionally, the packaging feedback signal includes one or more of the following instructions:

[0101] -Stop the packaging device from conveying the string;

[0102] - Increase the output speed of this string at the packaging output; and / or

[0103] - Reduce the output speed of this string at the packaging output.

[0104] According to a third aspect, the present invention relates to a computer-readable medium having computer-executable instructions adapted to cause a control unit of the invention to perform the method of the invention. The computer-readable medium implements the method of the invention. Therefore, the same advantages as described above also apply.

[0105] The various aspects and features described and illustrated in this specification may be applied individually in any possible circumstances. These individual aspects may become the subject of a divisional patent application. Attached Figure Description

[0106] The invention will be explained based on exemplary embodiments shown in the accompanying drawings, in which:

[0107] Figures 1 to 4 The illustration shows components that include components according to embodiments of the present invention during exemplary process steps;

[0108] Figure 5 It shows that according to Figure 1 Detailed view of the connection between the spool and the winding device in the middle V shape; and

[0109] Figure 6 and Figure 7 It shows Figure 5 Details of the front view under different operating conditions. Detailed Implementation

[0110] Figures 1 to 4 A component 1 for manipulating a string of 9 consecutive medicine bags is shown. Component 1 includes a packaging device 2 for packaging discrete medicines into the individual medicine bags of the string of 9. Component 1 further includes a winding device 3 for receiving the string of 9 from the packaging device 2 and winding the string of 9 onto a spool 4.

[0111] like Figures 1 to 4As further shown, the packaging device 2 includes a filling station 23 for filling corresponding continuous medicine bags in the string 9. Specifically, the filling station 23 is arranged to dispense a predetermined amount of discrete medicine into the corresponding medicine bags. The packaging device 2 further includes a sealing station 22 for sealing the filled medicine bags.

[0112] The packaging device 2 further includes a packaging output 21 for outputting a continuous string of 9 medicine bags. The packaging device 2 includes a packaging driver 26 for conveying the continuous string of 9 medicine bags through the packaging device 2. Specifically, the packaging driver 26 is arranged to convey the continuous string of 9 medicine bags through the filling station 23 and the sealing station 22 to the packaging output 21.

[0113] Typically, a long roll of material (not shown) is fed into packaging device 2 to form a series of nine consecutive medicine bags. Packaging device 2 can be arranged to form at least a portion of the respective medicine bags in the long roll, for example, by applying a series of heat seals to the long roll. Alternatively, these bags can be pre-formed in the long roll before it is fed into packaging device 2.

[0114] The packaging driver 26 is typically arranged to intermittently deliver a continuous string of 9 medicine bags to allow medicine to be delivered to the corresponding bags in the string of 9 at the filling station 23, and / or to allow the corresponding bags in the string of 9 to be securely sealed at the sealing station 22. The packaging driver 26 may include a buffer mechanism (not shown), such as a tension adjuster, to alleviate the intermittent delivery of the string of 9 at the packaging output 21. In particular, such a buffer mechanism can allow a constant or substantially constant output of the string of 9 at the packaging output 21.

[0115] like Figures 1 to 4 As shown, the spool 4 is provided with a central hub or spool hub 40 extending along the central axis A. The spool 4 further includes two flanges 42. The flanges 42 are spaced apart in an axial direction parallel to the central axis A, for limiting the string in said axial direction. The flanges 42 are connected to the spool hub 40 and extend radially outward relative to the central axis A away from the hub 40.

[0116] like Figures 5 to 7 As best seen, the reel hub 40 further includes a support surface 400 for receiving the string 9. The support surface 400 extends circumferentially about a central axis A. The reel 4 further includes a clamp 41 for clamping the front end of the string 9 to the support surface 400. The clamp 41 is rotatable about a clamp axis B. The clamp axis B is parallel to the central axis A. In particular, the clamp axis B is spaced apart from the central axis A. Optionally, the clamp 41 is biased toward the support surface 400.

[0117] The winding device 3 includes a connecting member 30 for receiving the spool 4. The connecting member 30 includes a drive shaft 300 for driving the spool 4 to rotate about a central axis A. Figure 6 and Figure 7 As shown, the drive shaft 300 is a keyed drive shaft 300, which includes a slot, cam, or key 301 projecting from the drive shaft 300 in a radial direction transverse to or perpendicular to the central axis A. Alternatively, the drive shaft 300 may, for example, include a plurality of slots, cams, or keys 301 circumferentially distributed around the central axis A. The slots, cams, or keys 301 are arranged to engage with the reel 4 to drive the reel 4 to rotate together with the drive shaft 300.

[0118] like Figures 5 to 7 As further shown, the connecting member 30 includes a retaining member 302 for retaining the reel in an axial direction parallel to the central axis A. The retaining member 302 is movable to a fixed position in which it protrudes radially from the drive shaft 300. In this particular embodiment, the retaining member 302 is further movable to a retracted position in which it does not protrude from the drive shaft 300, releasing the reel 4 from the connecting member 30. Specifically, the retaining member 302 is spring-loaded to the fixed position. Therefore, the reel can be easily removed by counteracting the spring load on the retaining member 302 and subsequently allowing the reel 4 to slide on the drive shaft 300.

[0119] like Figures 5 to 7 As further shown, the spool 4 is provided with a central hole extending along the central axis A through the spool hub 40 to receive the connecting member 30 of the winding device 3. The spool 4 includes one or more grooves or keyways 401 for receiving slots or keys 301 of the connecting member 30. In this particular embodiment, the grooves or keyways 401 are circumferentially distributed around the central axis A. In particular, the grooves or keyways 401 are evenly distributed around the central axis A.

[0120] Preferably, the retaining member 302 is displaced in the circumferential direction relative to the cam, slot or key 301, so that the retaining member 302 is not aligned with the groove or keyway 401 of the scroll 4.

[0121] In this particular embodiment, the winding device 3 includes a winding driver 6 for driving the coupling member 30 to rotate. Alternatively, the spool 4 may be driven to rotate, for example, by an external driver acting on the outer peripheral surface of the spool 4. For example, the external driver may be attached to the outer edge of one or both flanges 42.

[0122] The winding device 3 further includes a series of rollers 34, 35, and 36 for guiding a continuous string of 9 medicine bags along a string track S. The string track S extends between the packaging output 21 and the reel 4. Rollers 34, 35, and 36 include a first guide roller 34, a second guide roller 35, and a tension adjusting roller 36, which is positioned along the string track S between the first guide roller 34 and the second guide roller 35. The tension adjusting roller 36 can be in a first position (e.g., Figure 3 The tension adjusting roller 36 moves between a first position and a second position, which is spaced apart from the first position by a certain distance. Optionally, the tension adjusting roller 36 is biased toward the first position. The tension adjusting roller can be biased, for example, by a biasing element (such as a spring) or by the influence of gravity. In particular, the tension adjusting roller 36 is arranged to shift toward the second position under the influence of the passing string 9.

[0123] The winding device includes a first sensor 31 or a tension adjustment roller sensor for monitoring the position of the tension adjustment roller 36. Specifically, the first sensor 31 is arranged to detect the presence of the tension adjustment roller 36 at a first position. The first sensor 31 may be, for example, a limit sensor.

[0124] Alternatively, the tension adjusting roller 36 can be locked in a first position. Thus, in the first position, the tension adjusting roller 36 can passively tension the string 9, for example, by cooperating with the first guide roller 34 and the second guide roller 35 to guide the string 9 along an S-shaped curve. The tension adjusting roller 36 can be further unlocked and moved to or toward a second position to facilitate mounting or unmounting the string 9 onto or from the reel 4.

[0125] like Figure 1 and Figure 2 As can be best seen in the image, the winding device 3 includes a second sensor 32 or path sensor arranged along the string track S, which is used to detect the presence or absence of the string 9. (As shown in...) Figure 1 and Figure 2 As further shown, the train track S is arranged to form a loop between the packaging output 21 and the first guide roller 34 of the winding device 3. Preferably, the loop is formed at or near the first guide roller 34. Figure 1 and Figure 2 As shown, the second sensor 32 is arranged along the string trajectory S, such that the second sensor 32 can detect the presence or absence of the loop or the surplus of string 9. In particular, the second sensor 32 is arranged below the first guide roller 34.

[0126] exist Figure 1 The diagram illustrates a loop formed in string 9, which passes in front of the second sensor 32. Accordingly, the second sensor 32 can detect the presence of string 9. Figure 2The diagram shows a state where string 9 is taut and therefore does not pass in front of the second sensor. Accordingly, the second sensor can detect the absence of string 9. Preferably, the second sensor 32 comprises an optical sensor.

[0127] like Figures 1 to 4 As further shown, the winding device 3 includes a third sensor 33 or a spool sensor for detecting the amount of string 9 wound on the spool 4. The third sensor 33 may be, for example, a distance sensor. Alternatively, the third sensor 33 may be, for example, a force sensor for measuring the mass of the spool 4.

[0128] The winding device 3 may include one or more additional sensors for detecting process parameters of the winding device 3. For example, the winding device 3 may include a torque sensor (not shown) for measuring the torque of the winding driver 6.

[0129] Component 1 further includes a control unit 5, which is operatively connected to the packaging device 2 and the winding device. Specifically, the control unit 5 is operatively connected to a first sensor 31, a second sensor 32, and a third sensor 33 of the winding device 3. The control unit is further connected to a winding driver 6 of the winding device 3 and a packaging driver 26 of the packaging device 2. The control unit 5 may be connected to additional sensors and / or drivers (not shown).

[0130] Control unit 5 is arranged to communicate between packaging device 2 and winding device 3. Additionally, control unit 5 may be arranged to provide feedback to packaging device 2, winding device 3, or both. Specifically, control unit 5 is arranged to receive one or more packaging status signals from packaging device 2 and, in response to said one or more packaging status signals, send one or more winding control signals to winding device 3. Correspondingly, control unit 5 is arranged to receive one or more winding status signals from winding device 3 and, in response to said one or more winding status signals, send one or more packaging control signals to packaging device 2.

[0131] Specifically, control unit 5 is arranged to determine one or more winding states based on one or more received winding state signals. Control unit 5 is further arranged to determine one or more packaging states based on one or more received packaging state signals. Control unit 5 is programmed to generate corresponding packaging control signals and / or corresponding winding feedback signals in response to corresponding winding states. Accordingly, control unit 5 is programmed to generate corresponding winding control signals and / or corresponding packaging feedback signals in response to corresponding packaging states.

[0132] The following examples describe in more detail the non-exhaustive number of winding and packaging states:

[0133] The control unit 5 can be arranged to determine a first winding state indicating an error in the transport of the string 9 between the packaging output and the reel 4, such as the string 9 possibly not being connected to the reel. For example, the first winding state can be determined when the first sensor 31 detects the presence of the tension adjusting roller 36 in a first position. Additionally or alternatively, the first winding state can be determined when the second sensor 32 detects the absence of a loop in the string 9, provided that the desired string trajectory S includes a loop located at or near the second sensor 32. Alternatively, the control unit 5 can be programmed to determine the first winding state only when the first sensor 31 detects the tension adjusting roller 36 in the first position and the second sensor 32 detects the absence of the string 9.

[0134] Additionally or alternatively, the control unit 5 may be arranged to measure the torque of the winding driver 6. The control unit 5 may be programmed to determine a first winding state when the torque of the winding driver 6 is below a predetermined threshold.

[0135] Control unit 5 is programmed to generate a first packaging control signal in response to detecting a first winding state. Control unit 5 is arranged to send the first packaging control signal to packaging device 2. The first packaging control signal may, for example, include an instruction to stop the packaging driver 26 from conveying the string 9. Additionally, the first packaging control signal may include instructions to stop sealing station 22 from sealing the medicine bag and to stop filling station 23 from filling the medicine bag, respectively.

[0136] The control unit 5 can be further arranged to determine a second winding state, which indicates that the winding speed at the spool 4 is higher than the output speed of the string 9 at the packaging output 21. This second winding state can be determined, for example, when the second sensor 32 detects the absence of the string 9 and the first sensor 31 detects that the tension adjusting roller 36 is not present at the first position (i.e., when the tension adjusting roller 36 is shifted toward the second position by the passing string 9).

[0137] The control unit 5 is programmed to generate a first winding feedback signal or another winding control signal in response to the second winding state. The control unit 5 is arranged to send the first winding feedback signal or the other winding control signal to the winding device 3. The first winding feedback signal or the other control signal may, for example, include an instruction to reduce the winding speed at the spool 4 by the winding driver 6.

[0138] Additionally or alternatively, the control unit 5 may be programmed to generate a packaging control signal in response to a second winding state. The packaging control signal may include instructions for increasing the output speed of the string 9 at the packaging output 21 of the packaging device 2.

[0139] The control unit 5 can be further arranged to determine a third winding state, which indicates that the winding speed at the reel 4 is lower than the output speed of the string 9 at the packaging output 21. When the desired string trajectory S does not include a loop located at or near the position of the second sensor 32, the control unit 5 can be arranged to determine the third winding state when the second sensor 32 detects the presence of said loop in the string 9. Alternatively, when the desired string trajectory S includes a loop located at or near the position of the second sensor 32, the control unit 5 can be arranged to determine the third winding state when the second sensor 32 detects the presence of the string 9 and the first sensor 31 detects the presence of the tension adjusting roller 36 in its first position. This may be the case, for example, when the string 9 is correctly connected to the reel 4 but the tension in the string is insufficient to displace the tension adjusting roller 36 away from its first position.

[0140] The control unit 5 is programmed to generate a second winding feedback signal or another winding control signal in response to the third winding state. The control unit 5 is arranged to send the second winding feedback signal or the other winding control signal to the winding device 3. The second winding feedback signal or the other winding control signal may, for example, include an instruction to increase the winding speed at the spool 4 by the winding driver 6.

[0141] Additionally or alternatively, the control unit 5 may be programmed to generate a packaging control signal in response to a third winding state. The packaging control signal may include instructions for reducing the output speed of the string 9 at the packaging output 21 by the packaging device 2.

[0142] The control unit 5 can be further arranged to determine a fourth winding state, which indicates that the reel 4 is full. The control unit 5 can, for example, be arranged to determine the fourth winding state when the amount of string 9 detected by the third sensor exceeds a predetermined threshold. For example, when the third sensor 33 is a force sensor, the predetermined threshold can correspond to the maximum fill weight of the reel. Accordingly, the control unit can be arranged to determine another winding state indicating that the reel 4 is not present when the third sensor 33 detects a weight below the predetermined threshold.

[0143] Control unit 5 is arranged to generate a second packaging control signal in response to the fourth winding state. Control unit 5 is arranged to send the second packaging control signal to packaging device 2. The second packaging control signal may, for example, include an instruction to stop the packaging driver 26 from conveying the string 9. Additionally, the first packaging control signal may include instructions to stop sealing station 22 from sealing the medicine bag and to stop filling station 23 from filling the medicine bag, respectively.

[0144] The control unit 5 may be further arranged to determine a fifth winding state indicating a fault in the winding device 3. The winding device 3 may be arranged, for example, to generate a winding state signal indicating an error or fault in the winding device 3, such as the absence of the spool 4 or the spool 4 not being properly connected to the connecting member.

[0145] Control unit 5 is programmed to generate a third winding feedback signal or another winding control signal in response to the fifth winding state. Control unit 5 is arranged to send the third winding feedback signal or another winding control signal to winding device 3. The third winding feedback signal or other winding control signal includes an instruction to drive spool 4 to rotate in the opposite direction to the winding direction for a predetermined time interval. In other words, the feedback signal includes an instruction to unwind spool 4. Unwinding spool 4 allows the operator to check for errors in winding device 3 without being obstructed by string 9.

[0146] The control unit 5 can be further arranged to determine a first packaging state indicating a malfunction of the packaging device 2. Similar to the winding device 3, the packaging device 2 can be arranged to generate a packaging state signal indicating an error or malfunction of the packaging device 2. For example, the sealing station 22 may be clogged, or discrete pharmaceuticals may block the orifices in the filling station 23.

[0147] Control unit 5 is programmed to generate a first winding control signal in response to the first packaging state. Control unit 5 is arranged to send the first winding control signal to winding device 3. The first winding control signal may, for example, include an instruction to stop winding device 3 from winding string 9 onto spool 4. Additionally, control unit 5 may be programmed to send a packaging feedback signal or another packaging control signal to packaging device 2, including an instruction to stop conveying string 9 through packaging device.

[0148] Now will be used Figures 1 to 4 Exemplary method steps according to the method of the present invention are described.

[0149] Figure 1 The diagram shows component 1 in a condition where the amount of string 9 output at packaging output 21 is greater than the amount of string 9 wound on reel 4. As a result, string 9 droops between packaging output 21 and the second guide roller 35. In other words, a loop or surplus of string 9 is formed along the string trajectory S. This loop of string 9 is detected by a second sensor 32, which sends a winding status signal to control unit 5 indicating that string 9 is present at the second sensor 32.

[0150] exist Figure 1In this case, string 9 has been correctly connected to reel 4. Therefore, the portion of string 9 passing through tension adjustment roller 36 causes tension adjustment roller 36 to shift away from its first position. As a result, first sensor 31 does not detect tension adjustment roller 36 in the first position and sends a winding status signal to control unit 5 indicating that tension adjustment roller 36 is not present in the first position.

[0151] Control unit 5 can now determine that the winding device 3 is in a third winding state, indicating that the winding speed at the spool is lower than the output speed at the packaging output 21. In response, control unit 5 generates a second winding feedback signal. Accordingly, control unit 5 sends a command to winding driver 6 to increase the winding speed. Alternatively, control unit 5 can send a command to packaging driver 26 to decrease the conveying speed of the package through packaging device 2.

[0152] In an alternative configuration of control unit 5, Figure 1 The normal operating state of component 1 can be described. In this case, the loop located at the second sensor in the string trajectory S is expected. In this alternative configuration of the control unit 5, when the second sensor 32 detects that the string 9 is not present at the second sensor 32, the control unit can detect a second winding state, which indicates that the winding speed at the spool 4 is higher than the output speed of the string 9 at the packaging output 21. Correspondingly, when the first sensor 31 detects that the tension adjusting roller 36 is present in the first position, the control unit can detect a third winding state, which indicates that the winding speed at the spool 4 is lower than the output speed of the string 9 at the packaging output 21.

[0153] Figure 2 The diagram shows component 1 in a state where reel 4 is full. A third sensor 33 sends a winding status signal to control unit 5, indicating that the amount of string 9 on reel 4 exceeds a predetermined threshold. Accordingly, control unit 5 detects a fourth winding state. In response, control unit 5 generates a second packaging control signal. Accordingly, control unit 5 sends a command to packaging driver 26 of packaging device 2 to stop packaging device 2 from feeding string 9. Additionally, control unit 5 may send a winding feedback signal or another winding control signal to winding device 3 to stop winding string 9 onto reel 4.

[0154] Figure 3 The diagram shows component 1 in the position where string 9 is not connected to spool 4. Tension adjustment roller 36 is pushed into a first position by its bias. Accordingly, first sensor 31 detects the presence of tension adjustment roller 36 in the first position and sends a winding status signal indicating this detection to control unit 5.

[0155] The second sensor 32 did not detect a loop in string 9 at its location. Therefore, the second sensor 32 sent a signal to the control unit 5 indicating that there was no winding state of string 9 at its location.

[0156] Accordingly, control unit 5 detects a first winding state, which indicates an error in the feed of the string between packaging device 2 and winding device 3. Control unit 5 then generates a first packaging control signal. Accordingly, control unit 5 sends a command to packaging device 2 to stop the feed of the string by packaging driver 26. Control unit 5 may be further arranged to send a command to winding device 3 to stop the rotation of winding driver 6.

[0157] Figure 4 This illustrates a situation where the packaging process of component 1 is interrupted at the packaging device 2. Specifically, the conveying of string 9 through packaging device 2 has stopped. Therefore, no string 9 of any length is output at the packaging output 21.

[0158] The winding device 3 continues to wind string 9 onto the reel 4. As a result, string 9 gradually becomes tensioned between the packaging output 21 and the winding device 3. This tension is partially compensated by the shifting of the tension adjusting roller 36 toward its second position.

[0159] The packaging device 2 sends a first packaging status signal to the control unit 5, indicating an error or malfunction in the packaging device 2. Accordingly, the control unit 5 detects the first packaging status and generates a command to stop the winding device 3 from winding the string 9 onto the reel 4.

[0160] In an alternative configuration of control unit 5, Figure 4 The operating state of component 1 can be described, wherein string 9 is wound on reel 4 at a winding speed greater than the output speed of string 9 at packaging output 21. In this configuration of control unit 5, the string trajectory S will include a loop located at the second sensor 32 during normal operation, such as... Figure 1 What is depicted.

[0161] In an alternative configuration of the control unit 5, the control unit 5 receives from the second sensor 32 a winding state signal indicating that the string 9 is not present at the loop position in the string track S. The control unit 5 receives from the first sensor 31 a winding state indicating that the tension adjusting roller 36 is not in the first position. Accordingly, the control unit 5 detects a second winding state indicating that the winding speed at the spool 4 is higher than the output speed of the string 9 at the packaging output 21. Therefore, the control unit 5 generates a first winding feedback signal or another winding control signal and sends a command to the winding driver 6 to reduce the winding speed.

[0162] like Figures 1 to 4As shown, the control unit 5 includes a computer-readable medium 52. The computer-readable medium 52 is non-transitory or tangible, such as a physical data carrier, like a hard disk drive, USB drive, RAM memory, etc. The computer-readable medium 52 includes instructions for processing one or more winding status signals and / or one or more packaging status signals and, in response, generating corresponding one or more winding control signals and / or one or more packaging control signals. The control unit further includes a processing unit 51 for executing the instructions.

[0163] The present invention further relates to a computer-readable medium having computer-executable instructions adapted to cause the control unit 5 to perform the method steps described above.

[0164] It should be understood that the above description is included to illustrate the operation of preferred embodiments and is not intended to limit the scope of the invention. Based on the above discussion, many variations will be apparent to those skilled in the art, and these variations will still be covered by the scope of the invention.

[0165] List of reference signs

[0166] 1 component

[0167] 2 Packaging equipment

[0168] 21 Packaging Output

[0169] 22 Sealing Station

[0170] 23 Filling Station

[0171] 26 Packaging Driver

[0172] 3. Winding device

[0173] 30 Connecting components

[0174] 300 drive shaft

[0175] 301 Cam

[0176] 302 Retention Member

[0177] 31 First sensor or tension adjustment roller sensor

[0178] 32 Second sensor or path sensor

[0179] 33. Third sensor or roll sensor

[0180] 34 First guide roller

[0181] 35 Second guide roller

[0182] 36 tension adjusting rollers

[0183] 4 scrolls

[0184] 40 spool hubs

[0185] 400 Support Surface

[0186] 401 keyway

[0187] 41 Fixture

[0188] 42 Flange

[0189] 5 Control Unit

[0190] 51 Processing Unit

[0191] 52 Computer-readable media

[0192] 6 winding driver

[0193] 9 strings

[0194] A central axis

[0195] B Fixture axis

[0196] S-string trajectory.

Claims

1. A component (1) for manipulating a series (9) of continuous pharmaceutical bags, wherein, The component (1) includes: a packaging device (2) for packaging discrete pharmaceutical agents in corresponding pharmaceutical bags in the string (9); a winding device (3) for receiving the string (9) from the packaging device (2) and winding the string (9) onto a reel (4); and a control unit (5) operatively connected to the packaging device (2) and the winding device (3), wherein the control unit (5) is arranged as follows: - Receive one or more packaging status signals from the packaging device (2), and send one or more winding control signals to the winding device (3) in response to the one or more packaging status signals; and / or - Receives one or more winding status signals from the winding device (3), and sends one or more packaging control signals to the packaging device (2) in response to the one or more winding status signals; and the control unit (5) is further arranged to: - The winding state is determined based on one or more of the winding state signals, which indicate one or more of the following: - An error occurred while conveying the string (9) between the packaging device (2) and the winding device (3); - The difference between the output speed of the string at the packaging output (21) of the packaging device (2) and the winding speed of the string (9) at the reel; and - The winding device (3) malfunctioned.

2. The component (1) according to claim 1, wherein, The control unit (5) is arranged to determine the winding state based on the one or more winding state signals, the winding state indicating: - The scroll (4) is now full.

3. The component (1) according to claim 2, wherein, The control unit (5) is programmed to generate a packaging control signal in response to a detected winding state, the packaging control signal including one or more of the following instructions: -Stop the packaging device (2) from conveying the string (9); -Increase the output speed of the string at the package output (21); and - Reduce the output speed of the string (9) at the package output (21).

4. The component (1) according to claim 3, wherein, The control unit (5) is further programmed to generate a winding feedback signal that is sent back to the winding device (3) in response to a detected winding state.

5. The component (1) according to claim 4, wherein, The winding feedback signal includes one or more of the following instructions: - Stop the winding device (3) from winding the string (9); - Increase the winding speed of the string at the spool (4); - Reduce the winding speed of the string (9) at the spool (4); and - Reverse the winding direction of the spool (4).

6. Component (1) according to any one of claims 2 to 5, wherein, The winding device (3) includes one or more sensors (31, 32, 33) operatively connected to the control unit (5) for detecting the presence or absence of a string (9) of continuous medicine bags.

7. The component (1) according to claim 6, wherein, The winding device (3) includes a tension adjusting roller (36) that defines at least a portion of the string path (S) between the packaging output (21) and the reel (4), wherein the tension adjusting roller (36) is movable between a first position and a second position, wherein the tension adjusting roller (36) is biased toward the first position, wherein the tension adjusting roller (36) is arranged to shift toward the second position under the influence of the passing string (9), and wherein the one or more sensors (31, 32, 33) include a tension adjusting roller sensor (31) that is arranged to detect the presence of the tension adjusting roller (36) at at least one of the first and second positions.

8. The component (1) according to claim 6, wherein, The one or more sensors (31, 32, 33) include a path sensor (32) arranged to detect the presence or absence of the string (9) along a desired string trajectory (S).

9. The component (1) according to claim 6, wherein, The one or more sensors (31, 32, 33) include a path sensor (32) which is arranged to detect the presence or absence of a loop of the string (9) outside the desired string trajectory (S).

10. The component (1) according to claim 6, wherein, The one or more sensors (31, 32, 33) include a reel sensor (33) arranged to detect the amount of the string (9) of continuous medicine bags wound on the reel (4).

11. The component (1) according to claim 6, wherein, The winding device (3) further includes a winding driver (6) for driving the spool (4) to rotate and a torque sensor for measuring the torque of the winding driver (6).

12. The component (1) according to claim 1, wherein, The control unit (5) is arranged to determine, based on the one or more packaging status signals, a packaging status indicating one or more of the following: - The sealing unit (22) of the packaging device (2) is opened; - An error occurred while conveying the string (9) between the packaging device (2) and the winding device (3); - The difference between the output speed of the string at the packaging output (21) of the packaging device (2) and the winding speed of the string (9) at the reel; -The scroll (4) is now full; and - Malfunction of the packaging device (2).

13. The component (1) according to claim 12, wherein, The control unit (5) is programmed to generate a winding control signal in response to a detected packaging state, the winding control signal including one or more of the following instructions: - Stop the winding device (3) from winding the string (9); -Increase the winding speed of the string at the spool; - Reduce the winding speed of the string (9) at the spool (4); and - Reverse the winding direction of the spool (4).

14. The component (1) according to claim 13, wherein, The control unit (5) is further programmed to generate a packaging feedback signal that is sent back to the packaging device (2) in response to a detected packaging status.

15. The component (1) according to claim 14, wherein, The packaging feedback signal includes one or more of the following instructions: -Stop the packaging device (2) from conveying the string (9); -Increase the output speed of the string at the package output (21); and - Reduce the output speed of the string (9) at the package output (21).

16. The component (1) according to claim 1, wherein, The winding device (3) includes a winding driver (6) for driving the spool (4) to rotate in the winding direction to wind the string (9) onto the spool (4).

17. The component (1) according to claim 1, wherein, The packaging device (2) includes a packaging driver (26) for conveying the string (9) through the packaging device (2).

18. The component (1) according to claim 1, wherein, The control unit (5) includes: a non-transitory computer-readable medium (52) including instructions for processing the one or more winding status signals and / or the one or more packaging status signals and, in response, generating corresponding one or more winding control signals and / or one or more packaging control signals; and a processing unit (51) for executing the instructions.

19. A method for manipulating a series (9) of continuous pharmaceutical bags using a component (1) according to any one of the preceding claims, wherein, The method includes the following steps: - Receive one or more packaging status signals from the packaging device (2), and send one or more winding control signals to the winding device (3) in response to the one or more packaging status signals; and / or - Receive one or more winding status signals from the winding device (3), and send one or more packaging control signals to the packaging device (2) in response to the one or more winding status signals; and the method further includes the following steps: - The winding state is determined based on the one or more winding state signals, which indicates one or more of the following: - An error occurred while conveying the string (9) between the packaging device (2) and the winding device (3); - The difference between the output speed of the string at the packaging output (21) of the packaging device (2) and the winding speed of the string (9) at the reel; and - The winding device (3) malfunctioned.

20. The method according to claim 19, wherein, The method further includes the step of determining a winding state based on the one or more winding state signals, the winding state indicating: - The scroll (4) is now full.

21. The method according to claim 20, wherein, The method further includes the step of generating a packaging control signal in response to a detected winding state, the packaging control signal including one or more of the following instructions: -Stop the packaging device (2) from conveying the string (9); -Increase the output speed of the string at the package output (21); and - Reduce the output speed of the string (9) at the package output (21).

22. The method according to claim 21, wherein, The method includes stopping the packaging device (2) from conveying the string (9) in response to an indication that an incorrect winding state has occurred during the conveying of the string between the packaging output (21) and the reel (4).

23. The method according to claim 21 or 22, wherein, The method includes increasing the output speed of the string (9) at the packaging output (21) of the packaging device (2) in response to a winding state indicating that the winding speed at the spool (4) is higher than the output speed of the string (9).

24. The method according to claim 21, wherein, The method includes reducing the output speed of the string (9) at the packaging output (21) of the packaging device (2) in response to a winding state indicating that the winding speed at the spool (4) is lower than the output speed of the string (9).

25. The method according to claim 21, wherein, The method includes stopping the packaging device (2) from conveying the string (9) in response to the roll (4) being full.

26. The method according to claim 21, wherein, The method further includes the steps of generating a winding feedback signal in response to a detected winding state and sending the winding feedback signal to the winding device (3).

27. The method according to claim 26, wherein, The winding feedback signal includes one or more of the following instructions: - Stop the winding device (3) from winding the string (9); - Increase the winding speed of the string at the spool (4); - Reduce the winding speed of the string (9) at the spool (4); and - Reverse the winding direction of the spool (4).

28. The method according to claim 27, wherein, The method includes reducing the winding speed at the spool (4) in response to a winding state indicating that the winding speed at the spool (4) is higher than the output speed of the string (9) at the packaging output (21) of the packaging device (2).

29. The method according to claim 27 or 28, wherein, The method includes increasing the winding speed at the spool (4) in response to a winding state indicating that the winding speed at the spool (4) is lower than the output speed of the string (9) at the packaging output (21) of the packaging device (2).

30. The method according to claim 27, wherein, The method includes rotating the spool (4) in a direction opposite to the winding direction for a predetermined time interval in response to a malfunction of the winding device (3).

31. The method according to claim 19, wherein, The method includes the step of determining a packaging status based on one or more packaging status signals, the packaging status indicating one or more of the following: - The sealing unit (22) of the packaging device (2) is opened; - An error occurred while conveying the string (9) between the packaging device (2) and the winding device (3); - The difference between the output speed of the string at the packaging output (21) of the packaging device (2) and the winding speed of the string (9) at the reel; -The scroll (4) is now full; and - Malfunction of the packaging device (2).

32. The method according to claim 31, wherein, The method further includes generating a winding control signal in response to a detected packaging state, the winding control signal including one or more of the following instructions: - Stop the winding device (3) from winding the string (9); -Increase the winding speed of the string at the spool; - Reduce the winding speed of the string (9) at the spool (4); and - Reverse the winding direction of the spool (4).

33. The method according to claim 32, wherein, The method includes stopping the winding device (3) from winding the string (9) onto the reel (4) in response to a malfunction of the packaging device (2).

34. The method according to claim 32 or 33, wherein, The method further includes the steps of generating a packaging feedback signal in response to a detected packaging status and sending the packaging feedback signal back to the packaging device (2).

35. The method according to claim 34, wherein, The packaging feedback signal includes one or more of the following instructions: -Stop the packaging device (2) from conveying the string (9); -Increase the output speed of the string at the package output (21); and - Reduce the output speed of the string (9) at the package output (21).

36. A computer program product comprising a non-transitory computer-readable medium (52) holding instructions which, when executed by a processing unit (51), cause a component according to any one of claims 1 to 18 to perform the steps of the method according to any one of claims 19 to 35.

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