Label rewinding machine

Abstract

The utility model provides a label rewinding machine which comprises a machine box and a rewinding shaft arranged on one side of the machine box, a pressing rod parallel to the rewinding shaft is further arranged below the rewinding shaft, and the pressing rod is rotationally connected to the machine box through a swing arm. A first swing arm limiting block and a second swing arm limiting block are arranged on the two sides of the swing arm respectively. A long through hole is formed in the position, located on the swing stroke of the swing arm, of the machine box. A first position sensor and a second position sensor which are used for detecting the position of the swing arm are arranged at the positions, close to the two ends of the long through hole, in the machine box respectively. When the swing arm swings to the position close to the first swing arm limiting block, the swing arm shields the first position sensor, and when the swing arm swings to the position close to the second swing arm limiting block, the swing arm shields the second position sensor. According to the label rewinding machine, rewinding or paper feeding of the rewinding shaft can be adjusted in time according to actual working conditions.

Description

TECHNICAL FIELD

[0001] The utility model relates to label back -rolling equipment technical field, concretely relates to a label back -rolling machine. BACKGROUND

[0002] The existing label back -rolling machine cannot adjust the back -rolling shaft back -rolling or paper feeding in time according to actual working conditions when being used for back -rolling label paper or feeding paper to the printer to print labels, and is prone to damaging label paper or printing error when printing labels, for example, when the printer prints labels synchronously and the label back -rolling machine feeds paper, if the label back -rolling machine does not reverse and feed paper to the printer in time when the printer suddenly malfunctions and needs to feed back paper to the printer, the printer and the back -rolling machine will be pulled at this time, and the printer cannot guarantee that the paper can be flatly fed into the printer when printing again, and the printed label paper is prone to serious error when the paper is not flatly fed into the printer, for example, the same label paper is across two label papers or the angle of the printed word on the label paper is wrong.

[0003] In addition, the printer usually feeds back paper when printing the first label paper and feeds forward paper when printing the second label paper in general, and if the label back -rolling machine cannot feed or feed back paper in time during the process, a pulling force is prone to being formed between the label back -rolling machine and the printer, the printer is prone to not pulling the label paper, and the printer is prone to alarming or the printed label paper is prone to deformation. UTILITY MODEL CONTENT

[0004] In view of the defects of the prior art, the utility model provides a label back -rolling machine, which can adjust the back -rolling shaft back -rolling or paper feeding in time according to actual working conditions.

[0005] The technical scheme of the utility model is realized as follows:

[0006] A label rewinding machine comprises a machine box and a rewinding shaft arranged on one side of the machine box, a pressing rod parallel to the rewinding shaft is arranged below the rewinding shaft, and the pressing rod is rotatably connected to the machine box through a swing arm; first and second swing arm limiting blocks are arranged on both sides of the swing arm respectively, and the swing stroke of the swing arm is between the first and second swing arm limiting blocks; an elongated through hole is arranged on the machine box in the swing stroke of the swing arm, and a first position sensor and a second position sensor for detecting the position of the swing arm are arranged near both ends of the elongated through hole in the machine box; the swing arm blocks the first position sensor when the swing arm swings to the vicinity of the first swing arm limiting block, and the swing arm blocks the second position sensor when the swing arm swings to the vicinity of the second swing arm limiting block; a mainboard comprising a controller and a motor for limiting the rotation of the rewinding shaft are further arranged in the machine box, and the controller controls the motor to rotate forward, reverse or not to rotate according to whether the first and second position sensors are blocked.

[0007] Preferably, when the swing arm blocks the first position sensor, the controller controls the motor to reverse to feed paper; when the swing arm blocks the second position sensor, the controller controls the motor to rotate forward to rewind the label paper; and when the swing arm does not block the first and second position sensors, the controller controls the motor to not work.

[0008] Preferably, one end of the swing arm is fixed to the machine box through a bearing seat, and the other end of the swing arm is connected perpendicularly to the pressing rod, and the swing arm drives the pressing rod to rotate around the rewinding shaft.

[0009] Preferably, the bearing seat is located directly below the rewinding shaft; and when the swing arm blocks the second position sensor, the pressing rod is located directly below the rewinding shaft.

[0010] Preferably, a guide wheel support is arranged near the pressing rod on the machine box, a guide rod for guiding the label paper is arranged on the guide wheel support, and the guide rod is arranged parallel to the rewinding shaft.

[0011] Preferably, an elongated fixed groove is arranged on the guide wheel support, the guide rod is detachably connected in the elongated fixed groove, and the height of the guide rod from the bottom of the machine box is different when the guide rod is fixed at different positions of the elongated fixed groove.

[0012] Preferably, a guide wheel sleeve is arranged on the guide rod, the guide wheel sleeve is rotatable relative to the guide rod, and limiting plates for limiting the guide wheel sleeve are further arranged on both ends of the guide rod.

[0013] Preferably, first and second baffles for limiting the label paper are arranged on the rewinding shaft, and the first and second baffles are detachably mounted on the rewinding shaft.

[0014] Preferably, the first position sensor and the second position sensor include, but are not limited to, photoelectric sensors, electromagnetic sensors, ultrasonic sensors, and laser sensors.

[0015] Compared with the prior art, the label rewinding machine has the following advantages: the label rewinding machine is provided with first and second swing arm limiting blocks for limiting the swing arm on the machine box, and first and second position sensors are arranged at both ends of the swing stroke of the swing arm, when the swing arm swings to the vicinity of the first swing arm limiting block, the swing arm blocks the first position sensor, at this time, the controller controls the motor to reverse to feed the paper, when the swing arm swings to the vicinity of the second swing arm limiting block, the swing arm blocks the second position sensor, at this time, the controller controls the motor to rotate forward to rewind the label paper, and when the swing arm does not block the first and second position sensors, the controller controls the motor to stop rotating, when the label paper is rewound, the label paper does not support the pressing rod, so that the pressing rod rotates to the direction of the second position sensor under the action of gravity, at this time, the swing arm blocks the second position sensor, so that the rewinding shaft rotates forward to rewind the label paper, when the rewinding shaft has completely rewound the rewound label paper, the straight label paper generates a force on the pressing rod, so that the swing arm is located between the first and second position sensors, at this time, the swing arm does not block the first and second position sensors, and the controller controls the rewinding shaft to stop rotating, when the printer is normally started, under the traction of the printer, the label paper rotates the pressing rod to the direction of the first position sensor, and maintains the state that the swing arm blocks the first sensor, so that the rewinding shaft normally feeds the printer, therefore, the label rewinding machine can adjust the rewinding or feeding of the rewinding shaft according to the actual working condition.

[0016] The label rewinding machine can guarantee synchronous rewinding and feeding while printing with the printer, and no longer needs an operator to watch the machine at all times, so that the label printing is neat and can be realized without watching. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description, and obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0018] Figure 1 It is a structural schematic view of the label rewinding machine.

[0019] Figure 2 It is the explosion structure schematic view of one perspective of the label rewinding machine of the utility model;

[0020] Figure 3 It is the explosion structure schematic view of another perspective of the label rewinding machine of the utility model;

[0021] Figure 4 It is the use state reference drawing of the label rewinding machine of the utility model.

[0022] The figure mark: 1, the machine case; 2, rewinding shaft; 3, pressing rod; 4, swing arm; 5, first swing arm limit block; 6, second swing arm limit block; 7, long hole; 8, first position sensor; 9, second position sensor; 10, motor; 11, mainboard; 12, bearing seat; 13, first baffle; 14, second baffle; 15, guide pulley support; 1501, long fixed slot; 16, guide rod; 17, guide pulley cover; 18, bottom plate; 19, synchronous belt; 20, first synchronous wheel; 21, second synchronous wheel; 23, bearing; 24, power switch; 25, power socket; 26, adjuster; 27, handle. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0024] In the description of the utility model, it needs to be explained that the orientation or position relation indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or position relation based on the shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and is not indicated or implied that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, so it cannot be understood as the limitation of the utility model. In addition, the terms "first", "second", "third", "fourth" and the like are only for the description purpose, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, term "installation", "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be direct connection, also can indirectly connect through intermediate medium, can be two element internal communication. For ordinary skilled person in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0026] Referring to Figures 1 to 3 The utility model discloses a label rewinder, including the case 1 and the rewinding shaft 2 of being located at one side of the case 1, the rewinding shaft 2 below still be equipped with the parallel pressure bar 3 of rewinding shaft 2, and the pressure bar 3 is rotatably connected on the case 1 through swing arm 4, the both sides of swing arm 4 are equipped with first swing arm limit block 5 and second swing arm limit block 6 respectively, and the swing travel of swing arm 4 between first swing arm limit block 5 and second swing arm limit block 6, the long hole 7 of being located on the swing travel of swing arm 4 is equipped on the case 1, and the first position sensor 8 and the second position sensor 9 for detecting the position of swing arm 4 are respectively equipped in the case 1 and are located at the both ends near long hole 7, when swing arm 4 swing to first swing arm limit block 5 near, swing arm 4 shields first position sensor 8, and when swing arm 4 swing to second swing arm limit block 6 near, swing arm 4 shields second position sensor 9, the mainboard 11 including controller and the motor 10 for limiting the rotation of rewinding shaft 2 are further equipped in the case, and the controller controls motor 10 direct current, reverse rotation or does not rotate according to whether first position sensor 8 and second position sensor 9 are shielded.

[0027] Specifically, when swing arm 4 shields first position sensor 8, the controller controls motor 10 to reverse to feed paper, when swing arm 4 shields second position sensor 9, the controller controls motor 10 to direct current to rewind label paper, when swing arm 4 does not shield first position sensor 8 and second position sensor 9, the controller controls motor 10 to not work.

[0028] In the embodiment, by setting first swing arm limit block 5 and second swing arm limit block 6 for limiting swing arm 4 on the case 1, and setting first position sensor 8 and second position sensor 9 at both ends of the swing travel of swing arm 4, when swing arm 4 swing to first swing arm limit block 5 near, swing arm 4 shields first position sensor 8, at this time, the controller controls motor 10 to reverse to feed paper, when swing arm 4 swing to second swing arm limit block 6 near, swing arm 4 shields second position sensor 9, at this time, the controller controls motor 10 to direct current to rewind label paper, and when swing arm 4 does not shield first position sensor 8 and second position sensor 9, the controller controls motor 10 to not rotate, for example Figure 4As shown, when the label rewinder is used, the label paper enters the printer from the lower side of the pressing rod 3 or is rewound into the label rewinder, and the printed label paper is rewound and stored by using another label rewinder. When a fault occurs in the process of printing the label paper and the label paper is returned, since the label paper no longer supports the pressing rod 3, the pressing rod 3 rotates to the direction of the second position sensor 9 under the action of gravity, at this time, the label rewinder is rotated in the forward direction to rewind the label paper since the swing arm 4 blocks the second position sensor 9. When the label rewinder has completely rewound the returned label paper, the straightened label paper generates a force on the pressing rod 3 so that the swing arm 4 is located between the first position sensor 8 and the second position sensor 9, at this time, the swing arm 4 does not block the first position sensor 8 and the second position sensor 9, and the controller controls the label rewinder to not rotate. When the printer is normally started, under the traction of the printer, the label paper pulls the pressing rod 3 to rotate to the direction of the first position sensor 8, and maintains the state that the swing arm 4 blocks the first position sensor, so that the label rewinder normally sends the label paper to the printer to print the label paper.

[0029] In the process of printing the label paper, two label rewinders are generally needed, one is used to send the label paper to the printer, and the other is used to rewind the printed label paper. In the process of printing the label paper, the sending speed of the label rewinder is generally faster than the printing speed, so that when the printing speed of the printer and the sending speed of the label rewinder are consistent, the printer will always pull the label paper in the label rewinder, which will easily cause an alarm. Since the sending speed of the label rewinder is faster than the printing speed in the printing process, the motor is stopped from rotating when the first position sensor and the second position sensor are not blocked, so as to ensure synchronization with the printer, so that the label paper can be rewound and sent at the same time during printing, and the staff no longer needs to watch the machine at all times, so that the label printing is neat and can be realized without watching.

[0030] It can be seen that, in the case that there is no traction force to pull the label paper, the label paper is always in a loose state, so that the swing arm 4 always blocks the second position sensor 9, and the label rewinder continuously rewinds the label paper; when there is a traction force to pull the label paper to move forward, the label paper always generates a large supporting force on the pressing rod 3, so that the swing arm 4 always blocks the first position sensor 8, and the label rewinder continuously sends the label paper to the printer; when the printer suddenly stops, the printer no longer pulls the label paper to move forward, and since the label paper is in a straightened state, the supporting force of the label paper on the pressing rod 3 is balanced, so that the swing arm 4 is located between the first position sensor 8 and the second position sensor 9, and at this time, the motor 10 does not rotate to keep the label paper in a straightened state. It can be seen that the label rewinder can adjust the label rewinder 2 to rewind the label paper or send the label paper according to the actual working condition, so that the label paper is always kept in a straightened state, and the printer alarm or printing abnormality in the printing process is avoided.

[0031] The first position sensor 8 and the second position sensor 9 include, but are not limited to, photoelectric sensors, electromagnetic sensors, ultrasonic sensors and laser sensors. In the embodiment, the first position sensor 8 and the second position sensor 9 preferably adopt photoelectric sensors, which determine whether the swing arm 4 blocks the photoelectric sensor by detecting whether the light path of the photoelectric sensor is blocked. When the light path of the photoelectric sensor is blocked, the photoelectric sensor converts into an electrical signal and sends it to the controller, so that the controller controls the motor 10 according to the feedback signal of the photoelectric sensor. In the embodiment, how the photoelectric sensor detects whether the swing arm 4 blocks the photoelectric sensor is a conventional technology, and thus the specific implementation principle is not described herein.

[0032] Specifically, as shown in Figure 2 , one end of the swing arm 4 is fixed on the cabinet 1 through a bearing seat 12, so that the swing arm 4 can rotate relative to the cabinet 1; the other end of the swing arm 4 is connected with the pressing rod 3 perpendicularly to make the pressing rod 3 parallel to the rewinding shaft 2, and the swing arm 4 drives the pressing rod 3 to rotate around the rewinding shaft 2.

[0033] Further, the bearing seat 12 is located directly below the rewinding shaft 2; when the swing arm 4 blocks the second position sensor 9, the pressing rod 3 is located directly below the rewinding shaft 2. In the embodiment, the bearing seat 12 is arranged directly below the rewinding shaft 2, and when the swing arm 4 blocks the second position sensor 9, the pressing rod 3 is also located directly below the rewinding shaft 2, so that when the label paper does not support the pressing rod 3, the pressing rod 3 can drive the swing arm 4 to return to the position of the second sensor under the action of gravity, realize rewinding of the label rewinding machine, and thus realize timely adjustment of the rewinding of the rewinding shaft 2 or the feeding of the paper according to the actual working condition.

[0034] Further, in the embodiment, as shown in Figures 1-3 , a guide wheel support 15 is arranged on the cabinet 1 near the pressing rod 3, and a guide rod 16 for guiding the label paper is arranged on the guide wheel support 15, wherein the guide rod 16 is arranged parallel to the rewinding shaft 2. In the embodiment, the guide rod 16 is arranged to guide the label paper, so that the label paper enters the printer flatly or is rewound to the rewinding shaft 2 flatly.

[0035] The guide wheel support 15 is provided with an elongated fixing groove 1501, and the guide rod 16 is detachably connected in the elongated fixing groove 1501. When the guide rod 16 is fixed at different positions of the elongated fixing groove 1501, the height of the guide rod 16 from the bottom of the cabinet 1 is different. In the embodiment, the height of the guide rod 16 is adjusted to adapt to the height of different printers or related equipment, so that the label paper is flatly fed into the printer or flatly wound into the winding shaft 2. For example, when the printed label paper is wound by the label winding machine, the label paper needs to be in a horizontal state before being fed into the label winding machine for detecting whether the printed label paper is abnormal (for example, the content of a label is printed on two label papers, or the printed label is skewed, etc.). At this time, the height of the guide rod 16 is adjusted so that the printer and the guide rod 16 are at the same height, so as to ensure that the printed label paper is in a horizontal state.

[0036] In the embodiment, the guide rod 16 is provided with a guide wheel sleeve 17, and the guide wheel sleeve 17 is rotatable relative to the guide rod 16. The guide rod 16 is further provided with limiting plates for limiting the guide wheel sleeve 17 at both ends of the guide wheel sleeve 17. In the embodiment, the guide wheel sleeve 17 is rotatable relative to the guide rod 16. When the label paper rotates, the guide wheel sleeve 17 is driven to rotate, so as to reduce the friction between the label paper and the guide rod 16 and avoid damaging the label paper. Similarly, the guide wheel sleeve 17 can also be arranged on the pressing rod 3 to reduce the friction between the label paper and the pressing rod 3 and avoid damaging the label paper.

[0037] The guide wheel support 15 is a fixed plate arranged on one side of the cabinet 1 and extending outward, and the elongated fixing groove 1501 is arranged on the fixed plate. The elongated fixing groove 1501 is vertically arranged, and the guide rod 16 is arranged in the elongated fixing groove 1501.

[0038] In the embodiment, as shown in Figure 1 The first baffle 13 and the second baffle 14 are detachably mounted on the winding shaft 2. In use, the first baffle 13 and the second baffle 14 can limit the label paper to avoid movement of the label paper in the length direction of the winding shaft 2 during rotation of the winding shaft 2. In addition, the first baffle 13 and the second baffle 14 can slide on the winding shaft and can be positioned and locked.

[0039] In this embodiment, the housing 1 is also provided with a first synchronous pulley 20 and a second synchronous pulley 21. The rewind shaft 2 extends into the housing 1 and is connected to the second synchronous pulley 21. The rewind shaft 2 is fixed to the housing 1 by a bearing 23. The first synchronous pulley 20 is connected to the output shaft of the motor 10. The first synchronous pulley 20 and the second synchronous pulley 21 are connected by a synchronous belt 19. When the motor 10 drives the first synchronous pulley 20 to rotate, the second synchronous pulley 21 is driven to rotate under the action of the synchronous belt 19, thereby realizing the rotation of the rewind shaft 2.

[0040] The bottom of the chassis 1 is provided with a base plate 18 that extends below the rewind shaft 2 to balance the weight of the label rewind paper and prevent the label rewind machine from tipping to one side when the label paper is too heavy.

[0041] In addition, such as Figure 3 As shown, a power switch 24 and a power socket 25 can be installed outside the casing 1 for convenient control of the label rewinding machine; a handle 27 is installed on the top of the casing 1 for easy carrying. Additionally, an adjuster 26 for regulating the speed of the motor 10 can be installed.

[0042] In summary, this utility model label rewinding machine, by setting a first swing arm limiting block 5 and a second swing arm limiting block 6 on the machine housing 1 for limiting the swing arm 4, and setting a first position sensor 8 and a second position sensor 9 at both ends of the swing stroke of the swing arm 4, when the swing arm 4 swings to the vicinity of the first swing arm limiting block 5, the swing arm 4 blocks the first position sensor 8, at which time the controller controls the motor 10 to reverse to feed paper; when the swing arm 4 swings to the vicinity of the second swing arm limiting block 6, the swing arm 4 blocks the second position sensor 9, at which time the controller controls the motor 10 to rotate forward to rewind the label paper; and when the swing arm 4 neither blocks the first position sensor 8 nor the second position sensor 9, the controller controls the motor 10 not to rotate, thereby realizing timely adjustment of the rewinding shaft 2 for rewinding or feeding paper according to the actual working conditions.

[0043] This utility model of label rewinding machine ensures that paper is fed synchronously while printing with the printer by setting the swing arm to block the first position sensor, rewind the label paper when the swing arm blocks the second position sensor, and rewind the label paper when neither the first nor the second position sensor is blocked. This eliminates the need for staff to constantly monitor the machine, making label printing both neat and unattended.

[0044] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A label rewinder characterized by, The application relates to a label rewinding device, which comprises a machine case and a rewinding shaft arranged on one side of the machine case, wherein a pressing rod parallel to the rewinding shaft is arranged below the rewinding shaft, and the pressing rod is rotatably connected to the machine case through a swing arm; first and second swing arm limiting blocks are arranged on the two sides of the swing arm respectively, and the swing stroke of the swing arm is between the first and second swing arm limiting blocks; an elongated through hole is arranged on the machine case in the swing stroke of the swing arm, and a first position sensor and a second position sensor for detecting the position of the swing arm are arranged near the two ends of the elongated through hole in the machine case; when the swing arm swings to the vicinity of the first swing arm limiting block, the swing arm blocks the first position sensor; when the swing arm swings to the vicinity of the second swing arm limiting block, the swing arm blocks the second position sensor; a mainboard comprising a controller and a motor for limiting the rotation of the rewinding shaft are further arranged in the machine case, and the controller controls the motor to rotate forward, reverse or not to rotate according to whether the first and second position sensors are blocked.

2. The label rewinder of claim 1, wherein When the swing arm blocks the first position sensor, the controller controls the motor to rotate reversely to feed paper; when the swing arm blocks the second position sensor, the controller controls the motor to rotate forward to rewind label paper. When the swing arm does not block the first and second position sensors, the controller controls the motor to not work.

3. The label rewinder of claim 1 wherein, One end of the swing arm is fixed to the machine case through a bearing seat, and the other end of the swing arm is perpendicularly connected to the pressing rod; the swing arm drives the pressing rod to rotate around the rewinding shaft.

4. The label rewinder of claim 3, wherein The bearing seat is located directly below the rewinding shaft; when the swing arm blocks the second position sensor, the pressing rod is located directly below the rewinding shaft.

5. The label rewinder of claim 1 wherein, A guide wheel support is arranged on the machine case near the pressing rod, a guide rod for guiding label paper is arranged on the guide wheel support, and the guide rod is arranged in parallel to the rewinding shaft.

6. The label rewinder of claim 5 wherein, An elongated fixing groove is arranged on the guide wheel support, the guide rod is detachably connected in the elongated fixing groove, and the height of the guide rod from the bottom of the machine case is different when the guide rod is fixed at different positions of the elongated fixing groove.

7. The label rewinder of claim 5 wherein, A guide wheel sleeve is arranged on the guide rod, the guide wheel sleeve can rotate relative to the guide rod, and limiting plates for limiting the guide wheel sleeve are further arranged on the two ends of the guide rod.

8. The label unwinder of claim 1, wherein, First and second baffles for limiting label paper are arranged on the rewinding shaft, and the first and second baffles can be detachably mounted on the rewinding shaft.

9. The label rewinder of claim 1 wherein, The first and second position sensors comprise but are not limited to photoelectric sensors, electromagnetic sensors, ultrasonic sensors and laser sensors.

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