Center-curled horizontal paper winding machine

Abstract

The utility model provides a center-curled horizontal paper winding machine which comprises a machine frame, and a paper winding shaft is arranged on the machine frame. A roller library mechanism, a paper winding cylinder, a primary arm mechanism and a secondary arm mechanism are sequentially arranged on the rack from left to right; the front side and the rear side of the machine frame are each provided with a pulley capable of moving leftwards and rightwards, and the secondary arm mechanisms are arranged on the pulleys on the corresponding sides respectively. The pulley is further provided with a secondary arm transmission mechanism, the secondary arm transmission mechanism comprises a base fixed to the pulley, sliding frames moving front and back are arranged on the base, and a coupler shaft driven by a transmission motor to rotate around the axis of the coupler shaft is arranged on the sliding frame on at least one side. Bearing mechanisms of which the outer surfaces are clamped by the secondary arm mechanisms are respectively arranged at two ends of the paper winding shaft; the end, corresponding to the coupling shaft, of the paper winding shaft extends out of the bearing mechanism to form a coupling end and is detachably connected with the coupling shaft through a spline.

Description

Technical Field

[0001] The utility model belongs to the field of paper rolling, and in particular relates to a central-rolling horizontal paper rolling machine. Background Art

[0002] With the development of society, the market demand for more and more types of paper products, the width of paper produced by paper machines is getting wider and wider, and the working speed is constantly increasing. The original surface winding winder has a roll-taking arm fixed on both sides of the operating side and the transmission side of the roll library. The two roll-taking arms are connected by a synchronization rod. When working, the roll-taking arms on the operating side and the transmission side rotate around the center of the synchronization rod to take out the empty roll shaft placed above the roll track of the roll library, and place the empty roll shaft on the primary arm above the roll cylinder through circular motion. The primary arm is equipped with a locking device to firmly fix the bearing chambers fixed on both ends of the roll shaft. The primary arm can make circular motion around the center of the paper reel cylinder. To ensure the continuous operation of the paper machine, it is necessary to transfer the paper web from the unfinished paper reel shaft to the empty paper reel shaft. Before preparing to change the roll, the line passes through an acceleration device to accelerate the linear speed of the paper reel roller surface to the same or slightly higher than the linear speed of the paper reel cylinder. When starting to change the roll and thread the paper, the primary arm rotates to make the paper reel contact with the paper reel cylinder, and the paper web on the surface of the paper reel cylinder is transferred to the paper reel through the paper threading device. The friction between the paper web and the paper reel shaft and the paper reel cylinder drives the paper reel shaft to rotate and complete the paper threading. After the paper threading is completed, the primary arm continues to rotate to place the paper reel shaft with the paper roll on the frame track, and the primary arm stops rotating. A rotating hinge point for fixing the secondary arm device is provided on the frame, a cylinder or a hydraulic cylinder for pulling the secondary arm to swing is provided on the frame, and a freely rotating roller is provided on the secondary arm. When the bearing chamber of the paper reel reaches the frame track, as the cylinder or hydraulic cylinder rod extends or shortens, the secondary arm rotates along the rotating hinge point and the freely rotating roller presses the bearing chamber fixed on the paper reel, ensuring that the paper reel and the paper web wound thereon are tightly attached to the outer surface of the paper reel cylinder. As the diameter of the paper roll continues to increase, the cylinder or hydraulic cylinder rod gradually shortens or lengthens, the primary arm rotates back and enters the waiting position, and the entire roll changing process is completed.

[0003] During the operation of the paper machine, the surface tension of the paper is required to remain constant as much as possible, so as to ensure the continuous and stable operation of the paper machine. Since the overall rotation of the paper reel and the paper roll is carried out by the friction between the paper web and the paper reel cylinder, that is, the friction force on the paper remains unchanged, according to Hooke's law, when the friction coefficient between the paper and the surface of the paper reel cylinder is constant, it is necessary to ensure that the line pressure between the paper reel and the paper reel cylinder remains constant, because the pressure between the paper reel and the surface of the paper reel cylinder is provided by the secondary arm, because the secondary arm is provided by the tension or compression rotation of the cylinder or hydraulic cylinder around a fixed rotation hinge point, so as the diameter of the paper reel increases, the secondary arm needs to rotate, which causes the pressure applied by the secondary arm roller to the bearing chamber at both ends of the paper reel shaft to change continuously, which requires the installation of an angle detection device, and the air pressure or oil pressure values ​​of the cylinder or hydraulic corresponding to different angles are calculated through experiments, so as to ensure the pressure on the surface of the paper reel and the paper reel cylinder. Since there are certain fluctuations in air pressure or oil pressure, it is difficult to ensure that the line pressure between the paper reel and the paper reel cylinder is constant, and thus the tension of the paper guide is not a constant value. Such as the structure in the paper reel of patent CN1085180C.

[0004] In addition, some special paper types require that the paper web cannot withstand excessive linear pressure, otherwise some special paper defects will occur on the paper surface, affecting the performance of the paper. If the linear pressure between the paper web and the surface of the reel is reduced, the paper web will move left and right when it is rolled onto the surface of the reel, and the paper roll will eventually be loose and the end surface will be uneven, affecting the subsequent paper processing. Summary of the invention

[0005] The utility model provides a center-curling horizontal paper reel.

[0006] The purpose of the utility model is achieved in the following way: a center-winding horizontal paper reel comprises a frame, on which a paper reel shaft for rolling and reeling paper is arranged; on the frame, from left to right, a roller library mechanism for storing the paper reel shaft and rotating and moving the end paper reel shaft downward, a paper reel cylinder arranged on the frame driven by a paper reel cylinder driving mechanism to rotate around its own axis, a primary arm mechanism for taking away the paper reel shaft moved downward in the roller library mechanism and rotating around the axis of the paper reel cylinder, a secondary arm mechanism for pressing the paper reel shaft, and a paper roll braking mechanism are respectively arranged on the front and rear sides of the frame, and pulleys driven by a first linear driving mechanism to move left and right are , the secondary arm mechanism is respectively arranged on the pulleys on the corresponding sides; at least one of the pulleys is also provided with a secondary arm transmission mechanism, the secondary arm transmission mechanism includes a base fixed on the pulley, a sliding frame driven by the second linear drive mechanism to move forward and backward is arranged on the base, a coupling shaft driven by the transmission motor to rotate around its own axis is arranged on the sliding frame on at least one side, and bearing mechanisms whose outer surfaces are clamped by the secondary arm mechanism are respectively arranged at both ends of the paper winding shaft; the corresponding ends of the paper winding shaft and the coupling shaft extend out of the bearing mechanism to form a coupling end and are detachably connected to the coupling shaft through a spline.

[0007] A spline is arranged on the outer circumference of the coupling shaft; a spline hole is arranged on the protruding end of the paper winding shaft; the transmission motor is arranged on the sliding frame, and an active synchronous pulley is arranged on the output shaft of the transmission motor; a pulley shaft is rotatably arranged on the sliding frame through a bearing, and a driven synchronous pulley is fixed on the pulley shaft, and the active synchronous pulley and the driven synchronous pulley are connected by a synchronous belt; the coupling shaft is arranged on the end of the pulley shaft close to the paper winding shaft.

[0008] The second linear drive mechanism is a sliding hydraulic cylinder. A sliding frame guide rail is arranged on the base, and a sliding frame slider is arranged on the sliding frame. The sliding frame is arranged on the base through a guide rail slider mechanism.

[0009] The first linear drive mechanism is a secondary arm main hydraulic cylinder; a guide rail is arranged on the frame, and a slider is arranged on the pulley; the pulley is arranged on the frame through a guide rail slider mechanism; the secondary arm mechanism includes a support seat fixed on the pulley, and one end of the first rocker arm and one end of the second rocker arm are respectively hinged on the support seat, and rotatable rollers are arranged on the other ends of the first rocker arm and the second rocker arm; a first locking hydraulic cylinder is arranged between the pulley and the first rocker arm, and a second locking hydraulic cylinder is arranged between the pulley and the second rocker arm.

[0010] Compared with the prior art, the pressure between the secondary arm mechanism and the paper reel in the utility model is provided by the first linear drive mechanism, and the pressure is kept constant during the left and right movement of the paper reel. The pulley is also provided with a secondary arm transmission mechanism, which is connected to the paper reel through the secondary arm transmission mechanism, and provides the paper reel with power to rotate the paper, thereby realizing the adjustment of the rotation speed of the paper reel. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structural principle of the utility model.

[0012] Figure 2 yes Figure 1 Another side view of .

[0013] Figure 3 It is a schematic diagram of the paper reel.

[0014] Figure 4 It is a schematic diagram of the secondary arm transmission mechanism.

[0015] Figure 5 It is a schematic diagram of the secondary arm set on the rack.

[0016] Figure 6 It is a side view of the secondary arms installed on both sides of the frame.

[0017] Among them, 1 is the paper reel, 2 is the paper reel cylinder, 3 is the primary arm mechanism, 4 is the secondary arm mechanism, 5 is the braking mechanism, 6 is the roller library mechanism, 7 is the frame, 9 is the secondary arm transmission mechanism, 10 is the paper roll, 11 is the paper feeding mechanism, 12 is the paper width, 14 is the bearing mechanism, 15 is the coupling end, 33 is the roller, 34 is the first swing arm, 35 is the second swing arm, 36 is the support seat, 37 is the pulley, 39 is the hydraulic cylinder support, 40 is the hydraulic cylinder capstan seat, 41 is the secondary arm main hydraulic cylinder, 42 is the first locking hydraulic cylinder, 43 is the second locking hydraulic cylinder, 44 is the sliding frame guide rail, 45 is the sliding frame slider, 78 is the base, 79 is the sliding frame, 80 is the active synchronous pulley, 81 is the driven synchronous pulley, 82 is the coupling shaft, 83 is the transmission motor, 84 is the slider, 85 is the guide rail, 86 is the synchronous belt, and 87 is the second linear drive mechanism. DETAILED DESCRIPTION

[0018] In the present utility model, unless otherwise clearly specified and limited, the technical terms used in this application shall be the common meanings understood by the technicians of the present utility model. The terms "connected", "connected", "fixed", "set", etc. should be understood in a broad sense, and may be fixedly connected, detachably connected, or integrated; may be directly connected, or indirectly connected through an intermediate medium; may be mechanically connected or electrically connected. Unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or indirectly contacted through an intermediate medium. Moreover, the first feature "above" or "above" or "above" the second feature may be that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below" or "below" or "below" the second feature may be that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. Relational terms such as first, second, etc. are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. The terms used in the description, such as "center", "lateral", "longitudinal", "length", "width", "thickness", "height", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", "clockwise", "counterclockwise", etc., to indicate the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation.

[0019] The following will provide a clear and complete description of the technical solution of the present utility model in conjunction with the accompanying drawings and specific embodiments. Figure 1-6As shown, a center-winding horizontal paper reel comprises a frame 7, on which a paper reel 1 for rolling and reeling paper is arranged; on the frame 7, from left to right, a roller storage mechanism 6 for storing the paper reel 1 and rotating and moving the end paper reel 1 downward, a paper reel cylinder 2 driven by a paper reel cylinder 2 driving mechanism and arranged on the frame 7 to rotate around its own axis, a primary arm mechanism 3 for taking away the paper reel 1 moved downward in the roller storage mechanism 6 and rotating around the axis of the paper reel cylinder 2, a secondary arm mechanism 4 for pressing the paper reel 1, and a paper roll 10 braking mechanism 5 are arranged; pulleys 37 driven by a first linear drive mechanism to move left and right are arranged on the front and rear sides of the frame 7, and the secondary arm mechanism 4 is divided into The paper reel 1 is provided with a bearing mechanism 14 whose outer surface is clamped by the secondary arm mechanism 4. The corresponding ends of the paper reel 1 and the coupling shaft 82 extend out of the bearing mechanism 14 and are detachably connected to the coupling shaft 82 through a spline. The pulley 37 drives the sliding frame 79 to move left and right, which can drive the coupling shaft 82 to move to the corresponding position of the paper reel 1. The sliding frame 79 slides forward and backward, which can control the coupling shaft 82 and the paper reel 1 to connect and separate. In the utility model, the pressure between the secondary arm mechanism 4 and the paper reel 1 is provided by the first linear drive mechanism, and the pressure is kept constant during the left and right movement of the paper reel 1. After the secondary arm locks the paper reel 1, as the paper roll 10 increases, the secondary arm mechanism 4 moves horizontally instead of rotating. During the horizontal movement, the linear pressure between the paper reel 10 and the surface of the paper reel cylinder 2 is only the thrust or pull of the cylinder or hydraulic cylinder, and it is no longer necessary to calculate the relationship between the position of the secondary arm and the oil pressure and the linear pressure between the paper reel 10 and the paper reel cylinder 2 through an angle sensor. A secondary arm transmission mechanism 9 is also provided on the pulley 37, which is connected to the paper reel 1 through the secondary arm transmission mechanism 9, so as to provide the paper reel 1 with the power to rotate the paper, and no longer rely on the friction between the paper surface and the paper reel cylinder 2, and the rotation speed of the paper reel 1 can be adjusted.

[0020] The outer circumference of the coupling shaft 82 is provided with a spline; the protruding end of the paper reel 1 is provided with a spline hole; the transmission motor 83 is provided on the sliding frame 79, and the output shaft of the transmission motor 83 is provided with an active synchronous pulley 80, and the sliding frame 79 is provided with a pulley shaft rotatably provided through a bearing, and a driven synchronous pulley 81 is fixed on the pulley shaft, and the active synchronous pulley 80 and the driven synchronous pulley 81 are connected by a synchronous belt; the coupling shaft 82 is provided at one end of the pulley shaft close to the paper reel 1. Among them, the transmission motor 83 can be provided with a reducer. The transmission motor 83 transmits power to the coupling shaft 82 through a synchronous belt mechanism. Compared with the structure directly driven by the motor output shaft, the structure of the utility model can play a certain buffering role, avoiding the situation that the coupling shaft 82 and the paper reel 1 have a certain position error when connected, which makes it impossible to be hard-collided and unable to be installed.

[0021] Furthermore, the second linear drive mechanism 87 is a sliding hydraulic cylinder, a sliding frame guide rail 44 is provided on the base 78, and a sliding frame slider 45 is provided on the sliding frame 79; the sliding frame 79 is provided on the base 78 via a guide rail slider mechanism.

[0022] The first linear drive mechanism is a secondary arm main hydraulic cylinder 41; a guide rail is arranged on the frame 7, and a slider is arranged on the pulley 37; the pulley 37 is arranged on the frame 7 through a guide rail slider mechanism; the secondary arm mechanism 4 includes a support seat 36 fixed on the pulley 37, one end of the first swing rod 34 and one end of the second swing rod 35 are respectively hinged on the support seat 36, and a rotatable roller 33 is arranged on the other end of the first swing rod 34 and the second swing rod 35; a first locking hydraulic cylinder 42 is arranged between the pulley 37 and the first swing rod 34, and a second locking hydraulic cylinder 43 is arranged between the pulley 37 and the second swing rod 35. The two ends of the secondary arm main hydraulic cylinder 41 are connected by a pin shaft and a hydraulic cylinder support 39 and a hydraulic cylinder hinge seat 40 respectively; the hydraulic cylinder is manufactured and arranged on the frame 7, the hydraulic cylinder hinge seat 40 is arranged on the pulley 37, and the support seat 36 is connected to the pulley 37 by bolts. The frame 7 on the same side can be provided with two guide rails, and at least two sliders are arranged on each guide rail. The extension and contraction of the cylinder rod of the secondary arm main hydraulic cylinder 41 drives the pulley 37 to move left and right on the two parallel guide rails. The first swing rod 34 and the second swing rod 35 are respectively connected to the pulley 37 through a pin shaft and can rotate around the axis of the pin shaft. The roller 33 is respectively connected to the first swing rod 34 and the second swing rod 35 through a pin shaft and can rotate around the axis of the pin shaft. The two ends of the first locking hydraulic cylinder 42 and the second locking hydraulic cylinder 43 are respectively connected to the first swing rod 34, the second swing rod 35 and the pulley 37 through a pin shaft. When the cylinder rods of the first locking hydraulic cylinder 42 and the second locking hydraulic cylinder 43 are extended, the first swing rod 34 and the second swing rod 35 can be pushed to rotate upward around the center of the pin shaft connected to the pulley 37. When the roller 33 installed on the first swing rod 34 and the second swing rod 35 contacts the bearing device of the paper reel 1, the two rollers 33 and the support seat 36 are used to lock the paper reel 1. The upper surface of the support seat 36 can be set to a structure with an inclined surface to ensure that the bearing mechanism 14 of the paper reel 1 can be smoothly supported, so that the bearing mechanism 14 of the paper reel 1 is 1.5 mm away from the guide roller of the frame 7, ensuring that the secondary arm pulley 37 can smoothly drive the paper reel 1 to move left and right.

[0023] The remaining primary arm mechanism 3, roller storage mechanism 6, roll paper driving mechanism, and roll paper belong to the prior art. The structure of the paper reel in patent CN1085180C and the structures in other similar patents and references can be referred to, and will not be described in detail here. The paper reel of the utility model actually also includes a paper feeding mechanism 11, a cutting knife, a paper roll 10 braking mechanism 5 and other mechanisms, which are irrelevant to the invention content of the utility model and are also prior art, and will not be described in detail.

[0024] Specific implementation: During the initial operation: the paper reel cylinder 2 rotates under the action of the paper reel cylinder 2 driving mechanism. Before the paper feeding starts, the roll-taking hydraulic cylinder in the roll library device extends, pushing the roll-taking arm to rotate upward to take out the paper reel 1, and then the roll-taking hydraulic cylinder contracts, so that the roll-taking arm drives the paper reel 1 to rotate downward, and the paper reel 1 is placed in the groove of the pulley 37 of the primary arm mechanism 3. The roll-taking hydraulic cylinder continues to retract, and the roll-taking arm is separated from the paper reel 1, and the primary arm locks the paper reel 1. After the paper web 12 passes through the drying section and calendering and enters the surface of the paper reel cylinder 2, it is transferred to the surface of the paper reel 1 under the action of the paper feeding mechanism 11. The primary arm mechanism 3 starts to rotate, so that the paper reel 1 and the paper roll 10 start to rotate along the surface of the paper reel cylinder 2.

[0025] When the primary arm mechanism 3 places the paper reel 1 horizontally, it stops rotating, and the first locking hydraulic cylinder 42 and the second locking hydraulic cylinder 43 in the secondary arm mechanism 4 start to push the first swing rod 34 and the second swing rod 35, and the two rollers 33 and the support seat 36 lock the paper reel 1 at three points. At this time, the transmission motor 83 in the secondary arm transmission mechanism 9 has been started, and the coupling shaft 82 is accelerated to the same speed as the rotation speed of the paper reel 1 through the active synchronous pulley 80 and the driven synchronous pulley 81. The second linear drive mechanism 87 in the secondary arm mechanism 4 contracts, pulling the sliding frame 79 as a whole to move toward the coupling end 15 of the end face of the paper reel 1, and finally the outer spline of the coupling shaft 82 is combined with the inner spline of the coupling end 15 of the paper reel 1 to form a whole. The primary arm mechanism 3 rotates back to the horizontal position and waits for the next material connection. During the paper winding process, the main hydraulic cylinder in the secondary arm mechanism 4 pushes the pulley 37 to ensure that the paper roll 10 always has a constant line pressure with the surface of the paper winding cylinder 2. By adjusting the oil pressure in the bottom chamber of the secondary arm main hydraulic cylinder 41, the line pressure between the paper roll 10 and the surface of the paper winding cylinder 2 can be adjusted. When the paper roll 10 is about to reach a predetermined diameter and is ready to start changing the roll, the above steps are repeated.

[0026] When the roll change starts, the roll changing device transfers the paper web 12 to the paper reel 1, and the second linear drive mechanism 87 in the secondary arm transmission mechanism 9 extends to separate the external spline of the coupling shaft 82 from the internal spline of the coupling end 15 of the paper reel 1. The second locking hydraulic cylinder 43 in the secondary arm mechanism 4 drives the second swing rod 35 to retract, and the first locking hydraulic cylinder 42 drives the first swing rod 34 and the roller 33 to continue to push the paper reel 1 to push out the paper roll 10. When the paper reel 10 rolls to the station of the brake mechanism 5 of the paper reel 1, the brake mechanism 5 stops the paper reel 10 from rotating. At the same time, the secondary arm main hydraulic cylinder 41 pushes the pulley 37 to move toward the paper reel cylinder 2, driving the next paper reel 1 in the primary arm mechanism 3 to continue rotating.

[0027] The technical features of the above-mentioned embodiments can be combined arbitrarily, and as long as there is no contradiction in the combination of these technical features, they should be considered as the scope of this specification. Without departing from the overall concept of the utility model, the technical solution of the utility model and the equivalent replacement or change, as well as the changes and improvements made, should also be regarded as the protection scope of the utility model.

Claims

1. A center-winding horizontal paper winder, comprising a frame, on which a paper reel for rolling and reeling paper is arranged; on the frame, from left to right, there are arranged in sequence a roller storage mechanism for storing the paper reel and rotating the end paper reel downward, a paper reel cylinder driven by a paper reel cylinder driving mechanism and arranged on the frame to rotate around its own axis, a primary arm mechanism for taking away the paper reel that has moved downward in the roller storage mechanism and rotating around the axis of the paper reel cylinder, a secondary arm mechanism for pressing the paper reel, and a paper roll braking mechanism; characterized in that: The front and rear sides of the frame are respectively provided with pulleys that are driven by the first linear drive mechanism to move left and right, and the secondary arm mechanisms are respectively provided on the pulleys on the corresponding sides; at least one of the pulleys is also provided with a secondary arm transmission mechanism, and the secondary arm transmission mechanism includes a base fixed on the pulley, a sliding frame that is driven by the second linear drive mechanism to move forward and backward is provided on the base, a coupling shaft that is driven by the transmission motor to rotate around its own axis is provided on the sliding frame on at least one side, and bearing mechanisms whose outer surfaces are clamped by the secondary arm mechanism are respectively provided at both ends of the paper winding shaft; the corresponding ends of the paper winding shaft and the coupling shaft extend out of the bearing mechanism to form a coupling end and are detachably connected to the coupling shaft through a spline.

2. A center-curling horizontal paper winder according to claim 1, characterized in that: A spline is arranged on the outer circumference of the coupling shaft; a spline hole is arranged on the protruding end of the paper winding shaft; the transmission motor is arranged on the sliding frame, and an active synchronous pulley is arranged on the output shaft of the transmission motor; a pulley shaft is rotatably arranged on the sliding frame through a bearing, and a driven synchronous pulley is fixed on the pulley shaft, and the active synchronous pulley and the driven synchronous pulley are connected by a synchronous belt; the coupling shaft is arranged on the end of the pulley shaft close to the paper winding shaft.

3. The center-curling horizontal paper winder according to claim 1, characterized in that: The second linear drive mechanism is a sliding hydraulic cylinder. A sliding frame guide rail is arranged on the base, and a sliding frame slider is arranged on the sliding frame. The sliding frame is arranged on the base through a guide rail slider mechanism.

4. The center-curling horizontal paper winder according to claim 1, characterized in that: The first linear drive mechanism is a secondary arm main hydraulic cylinder; a guide rail is arranged on the frame, and a slider is arranged on the pulley; the pulley is arranged on the frame through a guide rail slider mechanism; the secondary arm mechanism includes a support seat fixed on the pulley, and one end of the first rocker arm and one end of the second rocker arm are respectively hinged on the support seat, and rotatable rollers are arranged on the other ends of the first rocker arm and the second rocker arm; a first locking hydraulic cylinder is arranged between the pulley and the first rocker arm, and a second locking hydraulic cylinder is arranged between the pulley and the second rocker arm.

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