CN118439433A - Take tail rolling control mechanism and rewinder - Google Patents

Abstract

The invention provides a tape tail rolling control mechanism and a rewinder, wherein the tape tail rolling control mechanism comprises a rolling shaft arranged at a rolling station and a tape pressing roller assembly arranged at the upstream of the rolling station; the belt pressing roller assembly comprises a first driving unit, a first elastic piece, a first swinging piece and a belt pressing roller; the first swinging piece is rotatably arranged, the belt pressing roller is connected to a first swinging arm of the first swinging piece, the first elastic piece is used for forcing the first swinging piece to swing so that the first swinging arm reaches a belt pressing position, and the first driving unit can force the first swinging piece to swing and enable the first swinging arm to leave the belt pressing position when acting on the swinging piece. The rewinding machine comprises the tail winding control mechanism. The invention solves the problem of paper throwing on the premise of not damaging products.

Description

Take tail rolling control mechanism and rewinder

Technical Field

The invention relates to the technical field of rewinders, in particular to a rewinder for a wide paper tape and a tape tail winding control mechanism thereof.

Background

The automatic rewinding machine for the paper tape comprises a master batch shaft, a rewinding shaft and a cutting mechanism arranged between the master batch shaft and the rewinding shaft, and when the paper tape is rewound to a preset length or a preset number of turns, the cutting mechanism cuts off the paper tape and winds the tape tail.

Compared with thin and soft tape materials such as adhesive tapes or printing consumable carbon tapes, the tape tail formed after cutting off the tape is easier to swing, not only can axial position offset be generated, but also the rewound tape can be loosened, and finally the rewinding quality is poor.

In order to cope with the shaking of the tail of the paper tape, a clamping mechanism consisting of a magnet and an iron block is arranged at the downstream of the cutting mechanism so as to avoid paper throwing. The clamping force of the magnet and the iron block is large, the paper tape can be worn and the winding smoothness is affected, but the existing machine is mainly used for recycling the waste paper tape without considering the problem of wear of the paper tape, and the machine is further provided with a water gun at the upstream of the cutting mechanism for spraying the paper tape so as to reduce the influence of friction force on the winding flow degree. The prior means are used for winding the product paper tape to solve the problem that the product paper tape is seriously damaged when the paper is thrown.

Disclosure of Invention

The first object of the present invention is to provide a belt tail winding control mechanism which solves the problem of paper throwing and does not damage products.

The second object of the present invention is to provide a rewinding machine that solves the problem of paper throwing without damaging the product.

The belt tail rolling control mechanism provided by the first object of the invention comprises a rolling shaft arranged at a rolling station and a belt pressing roller assembly arranged at the upstream of the rolling station; the belt pressing roller assembly comprises a first driving unit, a first elastic piece, a first swinging piece and a belt pressing roller; the first swinging piece is rotatably arranged, the belt pressing roller is connected to a first swinging arm of the first swinging piece, the first elastic piece is used for forcing the first swinging piece to swing so that the first swinging arm reaches a belt pressing position, and the first driving unit can force the first swinging piece to swing and enable the first swinging arm to leave the belt pressing position when acting on the swinging piece.

Compared with the background art, the friction force problem can be solved by using the roller as the belt pressing component; furthermore, the elastic piece is used as a downward pressure source, the roller is in a floatable state when being pressed down, the pressure is not too large, and different elastic pieces can be replaced according to different types of products to meet the downward pressure requirement. Therefore, the invention solves the problem of paper throwing on the premise of not damaging products.

Further, the belt pressing roller assembly further comprises a position sensor arranged towards the belt conveying channel, and the position sensor is located at the upstream of the belt pressing position.

From the above, the position sensor is used for sensing whether the tail of the paper tape is in place or not, and controlling the first driving unit accordingly. When the belt tail does not reach the detection point, the belt pressing roller is kept at the belt pressing position, so that the problem of tail flicking is solved; when the tail of the belt reaches the detection point, the rubberizing treatment can be prepared, the belt is pressed after rubberizing, and then a control signal is sent out to control the first driving unit to work so as to force the first swinging piece to swing and enable the first swinging arm to leave the belt pressing position. The arrangement of the position sensor is beneficial to realizing the automation of the working procedure.

Still further, the detection point of one kind of paper tape is used as the detection point of the other paper tape, and after the tape is released, the problem of paper throwing can still occur, so that different optimal detection points of paper tapes with different specifications can be seen. This arrangement facilitates the adjustment of the detection point at any time.

In addition, the belt pressing roller assembly further comprises a bearing piece, and the bearing piece is arranged opposite to the belt pressing roller; the belt pressing roller assembly is rotatably arranged, and the supporting piece and the belt pressing roller can swing to the rubberizing station after the belt pressing roller assembly rotates.

From the above, when the position sensor senses that the length of the tape tail is suitable, the rubberizing procedure of stub bar pasting can be performed, and the tape tail is transferred to the rubberizing station and positioned only by controlling the tape pressing roller assembly to swing. The invention directly uses the additionally arranged belt pressing roller assembly to serve as a transfer device before the rubberizing process and a positioning device during the rubberizing process, thereby not only ensuring the stability and reliability of the transfer process, but also greatly simplifying the structure of the equipment and reducing the cost.

Still further, the support piece includes right angle bending's support portion and rotation connecting portion that links to each other, rotates the pivot axle center department that rotates the connecting portion and extends to the support piece, and support portion and press belt gyro wheel set up relatively.

Therefore, the bearing piece and the belt pressing roller assembly thereof are arranged between the belt pressing position and the rubberizing station, and the problems that whether the belt pressing roller assembly affects the belt and interferes with other structures in the process of rotating and swinging are needed to be considered. Under this setting, utilize the setting of buckling to make other parts except the supporting part on the support back and avoid the tape passage, except supporting part and press the area gyro wheel, press other positions of area gyro wheel subassembly and all stagger the tape space, so, both guaranteed to press the area effect, avoid the structure to interfere and avoid influencing the tape, guarantee continuous automatic operation's feasibility.

The belt tail winding control mechanism further comprises a linear driving unit and a swinging member; the linear driving unit can rotate and swing, the output end of the linear driving unit is positioned at the swinging end, the output end is rotationally connected with the second extending end of the swinging rod piece, and the supporting piece is coaxially rotationally connected with the first extending end of the swinging rod piece.

From the above, the support member can be driven in a very selective manner, for example, by directly driving the support member with a motor. In practice, however, the present invention is not only required to drive the support, but also to drive the first driving unit, the first elastic member, the swinging member, the belt pressing roller, the position sensor and other components mounted on the support, which is very heavy, and the volume of the motor to be selected will be very large. Therefore, the invention adopts the linear driving unit, such as a rocker arm cylinder, a push rod or a linear module, and uses the length of the rocker member to reduce the required driving force according to the moment calculation, and converts the required torsion into the thrust, and the linear driving unit with smaller volume can provide enough thrust to meet the requirement relative to the motor.

As can be seen from the above, the single press belt roller is in nearly linear contact fit with the paper belt, and the contact surface is small. The mode of adopting at least two press belt rollers can increase the paper pressing amplitude, and can achieve better paper pressing effect.

In addition, the first swinging piece is arranged in a tilted plate shape and comprises a first swinging arm and a second swinging arm which are connected in a bending way; the first driving unit can enable the first swing arm to tilt and leave the belt pressing position after applying force to the second swing arm.

From above, under this setting, first drive unit pushes down to the second swing arm and can make first swing arm perk, makes the state that presses the belt gyro wheel locking to raise simultaneously, and further, second swing arm can also be as the stress point of first elastic component, and when first drive unit breaks away from the second swing arm, first elastic component pushes up the second swing arm and makes first swing arm push down. The first swinging piece is simpler in structure on the premise that the first swinging piece effectively meets the matching requirements of the first driving unit and the first elastic piece.

The belt tail winding control mechanism further comprises a limiting wheel assembly arranged at the winding station; the limiting wheel assembly comprises a second driving unit, a wheel frame and two limiting wheels, wherein the second driving unit drives the lower wheel frame to be far away from or close to the rolling station; the two limiting wheels are arranged on the wheel frame and are arranged towards the rolling station.

Therefore, the invention also considers that the paper roll at the periphery of the winding shaft at the winding station can be loosened, and the invention is provided with the limiting wheel assembly, and two limiting wheels are required to be in contact with the periphery of the circular coil to compress the coil, so that the coil is prevented from being loosened; in order to avoid obstructing the delivery of the discharged material, the invention also provides a limit wheel assembly which can be far away from or near to the winding station.

Still further, the spacing wheel assembly includes a second elastic member; the wheel frame is rotatably connected to the output end of the second driving unit, and the second elastic piece is used for forcing the wheel frame to rotate and swing.

From the above, considering that the axial center position of the paper roll is slightly deviated each time, in order to ensure that the paper rolls with different axial centers are pressed, the limiting wheel assembly is arranged in a floatable mode, and the forcing wheel frame rotates and swings under the action of the elastic force of the second elastic piece so as to ensure that the limiting wheel presses the periphery of the paper roll.

In a still further scheme, under the drive of the second driving unit, the rotation axis of the wheel frame moves along a straight line, and the straight line is different from the axis of the winding shaft.

From the above, the front-back adjustment of the lower second driving unit and the rotation and swing adjustment of the wheel frame can enable the two limiting wheels to press various paper rolls with different outer diameters and different shaft centers, and whether the shaft centers of the paper rolls have deviation or not each time and whether the outer diameters of different types of products have difference or not can ensure the pressing effect, so that the device has very good self-adjustment and self-adaptation capability.

The rewinding machine provided by the second object of the invention comprises the belt tail winding control mechanism.

Drawings

FIG. 1 is a view showing a state of use of the tail wind-up control mechanism according to an embodiment of the present invention at a first viewing angle.

FIG. 2 is a block diagram of hidden parts of an embodiment of a take-up control mechanism according to the present invention.

FIG. 3 is a block diagram of a pinch roller assembly in an embodiment of a tail wrap control mechanism in accordance with the present invention.

FIG. 4 is a diagram showing a second view of the tail wind-up control mechanism according to the embodiment of the present invention.

Fig. 5 is an enlarged view at a in fig. 2.

FIG. 6 is a schematic diagram of a first operating state of the tail wind-up control mechanism according to an embodiment of the present invention.

FIG. 7 is a schematic diagram of a second operating state of the tail wind-up control mechanism according to an embodiment of the present invention.

FIG. 8 is a schematic illustration of self-adjusting spacing wheel assemblies of an embodiment of a take-up control mechanism of the present invention.

Detailed Description

Referring to fig. 1 and 2, the rewinding machine of the present invention is provided with a paper cutting station 102, a winding station 101, a rubberizing station 103 and a winding shaft 11; in practice, the cutting station 102 is also a winding station, the number of winding shafts 11 being at least two, and a plurality of winding shafts 11 reciprocating between the cutting station 102 and the winding station 101. In the process of feeding the tape, the paper roll 9 is sleeved on one winding shaft 11 and is rewound at the paper cutting station 102, the winding shaft 11 is moved to the winding station 101 after being rewound to a certain extent, the leading-out section of the paper roll 9 is lapped on the other winding shaft 11 reaching the paper cutting station 102, and at the moment, the leading-out section of the paper roll 9 is cut off from the paper cutting station 102 by the paper cutting mechanism and the tape tail 91 is formed. The roll-up spool 11 then continues to roll up until the tail 91 is of the proper length and the tail 91 is transferred to the taping station 103 for taping the tail 91 with a stub bar. Finally, the tape tail 91 is continuously wound up. The rewinding is continued by another winding shaft 11 located at the cutting station 102, and a plurality of winding shafts 11 can be moved alternately between the cutting station 103 and the winding station 101 to repeat the rewinding.

The rewinding machine of the present invention includes a tail winding control mechanism, which includes a tape pressing roller assembly 2 disposed upstream of a winding station 101 in this embodiment.

Further, in conjunction with fig. 3 and 4, the platen roller assembly 2 is disposed between the above-described paper cutting station 102 and the winding station 101. The press belt roller assembly 2 includes a support 21, a first driving unit 22, a first elastic member, a swinging member 23, a press belt roller 24, a position sensor 25, a rotation connection seat 27, a swinging member 28, and a linear driving unit 29. In this embodiment, the first driving unit 22 may be a cylinder, the first elastic member is a spring (not shown), the swinging member 23 is configured in a tilted plate shape, and the position sensor 25 may be an infrared sensor.

The belt tail winding control mechanism comprises a fixed and horizontally arranged mounting table 20, a stand column 291 is fixedly erected on the mounting table 20, and the upper end of a linear driving unit 29 is rotatably connected with the upper end of the stand column 291; the rotary connecting seat 27 is fixedly arranged on the mounting seat 20, the first extension ends of the bearing piece 21 and the swinging rod piece 28 are coaxially and rotatably connected to the rotary connecting seat 27, and the rotary axes of the bearing piece 21 and the swinging rod piece 28 are parallel to the rotary axis of the linear driving unit 29; the telescopic rod end of the linear drive unit 29 is rotatably connected to the second extension end of the swing rod member 28. In this way, the support 21 can be rotated by the pendulum rod 28 under the drive of the linear drive unit 29, see fig. 2 and 4, which show the support 21 after a 90 degree upper swing in dashed lines, see in particular fig. 2, in which the support 21 after the upper swing will reach the rubberizing station 103.

The support 21 is driven in a very selective manner by a rotary pendulum, for example by a motor directly driving the support 21. In practice, however, the present invention is not only required to drive the support 21, but also to drive the first driving unit 22, the first elastic member, the swinging member 23, the belt roller 24, the position sensor 25 and other components mounted on the support 21, which are very heavy in load, and the volume of the motor to be selected will be very large. In this embodiment, the linear driving unit 29 adopts a rocker arm cylinder, and drives the supporting member 21 through the linear driving unit 29 and the rocker member 28, and according to the moment calculation, the required driving force is reduced by using the length of the rocker member 28, and the required torque is converted into the thrust, so that the linear driving unit 29 with smaller volume can provide enough thrust to meet the requirement relative to the motor.

Referring to fig. 3, a stand 219 is fixedly installed on the supporter 21, and in the state shown in fig. 3, the supporter 21 is in a horizontal state, the first driving unit 22 is vertically downwardly installed on the stand 219, and the telescopic rod of the first driving unit 22 is downwardly extended. The tilted swinging member 23 is rotatably connected to the lower portion of the upright 219 along a fulcrum shaft 202, and the fulcrum shaft 202 is perpendicular to the swinging shaft 201 of the supporter 21. The swinging piece 23 extends out of the pivot axis 202 and is provided with a first swinging arm 231 and a second swinging arm 232, the first swinging arm 231 and the second swinging arm 232 extend out of opposite directions, and the two swinging arms are connected in a V-shaped bending mode.

The second swing arm 232 includes a pulley 233, and the end of the telescopic rod of the first driving unit 22 can press the pulley 233 downward and force the second swing arm 232 to swing downward, and simultaneously force the first elastic member to be compressed and the first swing arm 231 to tilt upward. Wherein the pulley 233 is provided to reduce friction between components. In addition, not shown, the first elastic member abuts between the lower side of the second swing arm 232 and the upper side of the supporting member 21, and the restoring force of the first elastic member forces the second swing arm 232 to tilt upward, and simultaneously forces the first swing arm 231 to swing downward. That is, the first elastic member is used to urge the swinging member 23 to swing so that the first swing arm 231 reaches the belt pressing position, and the first driving unit 22 may urge the swinging member 23 to swing and move the first swing arm 231 away from the belt pressing position when acting on the swinging member 23.

At least two platen rollers 24 sequentially arranged in the feeding direction shown in the x-axis direction in fig. 3 are connected to the first swing arm 231, and the platen roller 24 has a larger size in the axial direction thereof and a larger platen area. Referring to fig. 3, the supporting member 21 includes a supporting portion 211 and a rotating connecting portion 212, wherein the supporting portion 211 and the rotating connecting portion 212 are connected by bending at right angles, the rotating connecting portion 212 extends to a pivot axis 201 of the supporting member 21 and is coaxially connected with the swinging member 28, the supporting portion 211 is used for supporting the belt tail 91, a belt moving channel 240 is formed between the lower side of the belt pressing roller 24 and the upper side of the supporting portion 211, the belt moving channel 240 is a channel through which the paper roll 9 passes, and when the first swinging arm 231 is at the belt pressing position, the opposite belt pressing roller 24 and the supporting portion 211 clamp the paper roll 9 from opposite sides of the paper roll 9 under the action of the first elastic member. In addition, a position sensor 25 is adjustably mounted on the holder 211 in the direction of the tape passage 240, the detection end of the position sensor 25 is disposed toward the tape passage 240, and the position of the position sensor 25 is located upstream of the platen position.

Mainly, the invention utilizes the roller as the belt pressing component, can solve the friction force problem, utilizes the first elastic piece as the downward pressure source, the roller is in a floatable state when in downward pressure, the pressure is not too large, and the invention can also replace different elastic pieces according to different types of products to meet the downward pressure requirement.

Further, referring to fig. 7 again, the length of the tail 91 is detected by the position sensor 25, and a control signal is transmitted to the linear driving unit 29 based on the detection result.

After the material strip is cut to form the tail 91, the first swing arm 231 is at the tape pressing position, and the opposite tape pressing roller 24 and the supporting portion 211 clamp the tail 91 from opposite sides of the tail 91 under the action of the first elastic member, at this time, the tail 91 is in the detection area of the position sensor 25, and at this time, the winding is continued. When the tape tail 91 is continuously shortened and leaves the detection area of the position sensor 25, the detection signal of the position sensor 25 changes, the system sends a control signal to the linear driving unit 29 according to the detection signal, and the linear driving unit 29 drives a plurality of components such as the first driving unit 22, the first elastic piece, the swinging piece 23, the tape pressing roller 24, the position sensor 25 and the like which are arranged on the supporting piece 21 to swing upwards by 90 degrees, so that the tape tail 91 reaches the rubberizing station 103.

Referring to fig. 5 and 6 again, the tail winding control mechanism of the present embodiment includes a limiting wheel assembly 3 disposed at the winding station 101, where the limiting wheel assembly 3 includes a second driving unit 31, a wheel frame 32, two limiting wheels 33 and a second elastic member 34, the second driving unit 31 is a cylinder disposed horizontally, the wheel frame 32 is rotatably connected to an output end of the second driving unit 31, and an output end of the second driving unit 31 is a tail end of a telescopic rod of the cylinder, and a rotation axis of the wheel frame 32 is parallel to the winding shaft 11. The wheel frame 32 includes two connecting arms 321 extending away from the pivot axis of the wheel frame 32, the two connecting arms 321 are in a V shape, and the two limiting wheels 33 are rotatably mounted on the two connecting arms 321 respectively, and the rotation axes of the two limiting wheels 33 and the rotation axis 30 of the wheel frame 32 are in triangular distribution. The second elastic element 34 is a tension spring, one end of the second elastic element 34 is pulled on the upper connecting arm 321, the other end of the second elastic element 34 is pulled on the wheel frame 32, and the acting force of the second elastic element 34 can force the wheel frame 32 to swing upwards.

Referring to fig. 6, both of the two limiting wheels 33 are disposed toward the winding station 101, and when the second driving unit 31 pushes the two limiting wheels 33 forward, the two limiting wheels 33 can press against the outer circumference of the roll of paper roll 9 to prevent the winding from being loosened.

Since a slight positional deviation may occur in the winding of the roll of the paper tape 9, the swingable wheel frame 32 may be somewhat loosened with the above-mentioned deviation, and the platen effect may be weakened at this time. For this reason, further, and under the force of the second elastic member 34, the wheel frame 32 tends to swing up so that the stopper wheel 33 is kept pressed against the paper surface.

Further, in the present embodiment, the second driving unit 31 drives the rotation axis 30 of the lower wheel frame 32 to move along a straight line L, which is parallel to the X axis, and the straight line L is different from the axis 90 of the winding shaft 11, and specifically, the horizontal position of the straight line L is higher than the horizontal position of the axis 90.

The setting is mainly to combine the wheel carrier 32 that floats and can swing in order to realize the self-adjusting of two spacing wheel 33 positions, and the front and back adjustment of second drive unit 31 adds the change pendulum adjustment of wheel carrier 32, can make two spacing wheels 33 can push down the various scroll of different axle centers of different external diameters, no matter whether there is the deviation in scroll axle center at every turn, whether there is the difference in external diameter of different model products, can both guarantee the compaction effect of two spacing wheels 33, has very good adaptability. Referring specifically to fig. 8, as shown by the solid line in fig. 8, when the outer diameter of the paper roll 9 is smaller, the second driving unit 31 extends forward a greater distance to enable the two limiting wheels 33 to press against the paper roll 9, and the two limiting wheels 33 are at a first angle relatively lower; as shown in broken lines in fig. 8, the outer diameter of the roll 9' is larger and the second drive unit 31 is advanced a smaller distance to enable the two limit wheels 33 to press against the roll 9', where the two limit wheels 33' are at a second, more upward angle.

In other embodiments, the position sensor is not provided, and the length of the belt tail is calculated through the rotation number of the winding shaft motor.

In other embodiments, the position sensor cannot be adjusted in the direction of the tape.

In other embodiments, the press belt roller assembly cannot swing integrally, and the movable rubberizing assembly transfers and pastes the stub bar paste onto the belt tail.

In other embodiments, a motor or a rotary cylinder is used to drive the belt pressing roller assembly to swing.

In other embodiments, a screw mechanism is employed as the second drive unit.

Finally, it should be emphasized that the foregoing description is merely illustrative of the preferred embodiments of the invention, and that various changes and modifications can be made by those skilled in the art without departing from the spirit and principles of the invention, and any such modifications, equivalents, improvements, etc. are intended to be included within the scope of the invention.

Claims (10)

1. The belt tail winding control mechanism comprises a winding shaft arranged at a winding station;

the method is characterized in that:

the belt pressing roller assembly is arranged at the upstream of the winding station;

the belt pressing roller assembly comprises a first driving unit, a first elastic piece, a first swinging piece and a belt pressing roller;

The first swinging piece is rotatably arranged, the belt pressing roller is connected to a first swinging arm of the first swinging piece, the first elastic piece is used for forcing the first swinging piece to swing so that the first swinging arm reaches a belt pressing position, and the first driving unit can force the first swinging piece to swing and enable the first swinging arm to leave the belt pressing position when acting on the swinging piece.

2. The take-up reel control mechanism of claim 1, wherein:

The belt pressing roller assembly further comprises a position sensor arranged towards the belt conveying channel, and the position sensor is located at the upstream of the belt pressing position.

3. The take-up reel control mechanism of claim 1, wherein:

the belt pressing roller assembly further comprises a bearing piece, and the bearing piece is arranged opposite to the belt pressing roller;

the belt pressing roller assembly is rotatably arranged, and the belt pressing roller assembly can enable the supporting piece and the belt pressing roller to swing to the rubberizing station after rotating.

4. The take-up reel control mechanism of claim 3, wherein:

the bearing piece comprises a bearing part and a rotating connecting part which are connected in a bending way, the rotating connecting part extends to the rotating shaft center of the bearing piece, and the bearing part and the belt pressing roller are oppositely arranged.

5. The take-up reel control mechanism of claim 4, wherein:

The belt tail winding control mechanism further comprises a linear driving unit and a swinging member;

The linear driving unit can be rotatably arranged, the output end of the linear driving unit is positioned at the swinging end, the output end is rotatably connected with the second extending end of the swinging rod piece, and the supporting piece is coaxially rotatably connected with the first extending end of the swinging rod piece.

6. The take-up reel control mechanism of claim 1, wherein:

The first swinging piece is arranged in a tilted plate shape and comprises a first swinging arm and a second swinging arm which are connected in a bending way;

the first driving unit can enable the first swing arm to tilt and leave the belt pressing position after applying force to the second swing arm;

The first elastic piece applies force to the second swing arm and enables the first swing arm to tend to swing towards the belt pressing position.

7. The take-up reel control mechanism according to any one of claims 1 to 6, wherein:

The belt tail winding control mechanism further comprises a limiting wheel assembly arranged at the winding station;

The limiting wheel assembly comprises a second driving unit, a wheel frame and two limiting wheels, and the wheel frame can be far away from or close to the winding station under the drive of the second driving unit;

the two limit wheels are arranged on the wheel frame and both are arranged towards the rolling working position.

8. The take-up reel control mechanism of claim 7, wherein:

the limiting wheel assembly comprises a second elastic piece;

The wheel frame is rotatably connected with the output end of the second driving unit, and the second elastic piece is used for forcing the wheel frame to rotate and swing.

9. The take-up reel control mechanism of claim 8, wherein:

The second driving unit drives the rotating shaft center of the wheel frame to move along a straight line, and the straight line is different from the axis of the winding shaft.

10. Rewinding machine, characterized in that it comprises a tail winding control mechanism according to any one of the preceding claims 1 to 9.