Offcenter type pinch roller traction belt feeding mechanism

Abstract

The invention discloses an off-center type pressing wheel traction belt feeding mechanism which comprises a main shaft, a bearing seat, a belt guiding rotating disc, an input roller, an output roller, a traction driving mechanism and a flexible pressing wheel feeding device. The main shaft is rotationally arranged on the bearing seat, and the belt guiding rotating disc is coaxially fixed to the main shaft; the input roller and the output roller are arranged on the tape guiding rotary disc, the traction driving mechanism drives the main shaft to rotate, the flexible pressing wheel feeding device is eccentrically arranged on the tape guiding rotary disc, and the flexible pressing wheel feeding device elastically clamps and pulls packing materials. And the packing material is sent out after passing through the main shaft, the input roller and the output roller. According to the off-center type pinch roller traction belt feeding mechanism, the position of the pinch roller does not need to be adjusted frequently, the mechanism can automatically adapt to the thicknesses of different packing materials, faults are reduced, and the production efficiency is effectively improved.

Description

Technical Field

[0001] The invention relates to a cable wrapping machine, in particular to an off-center pressure wheel traction belt feeding mechanism. Background Art

[0002] The cable wrapping machine is a device that wraps the packaging material around the core wire to form a cable with an insulation layer. The cable wrapping machine generally includes a core wire traction component and a packaging material traction component. The packaging material traction component is a structure that drives the packaging material to wrap around the core wire with a constant tension. It has a tape release component and a traction structure. The tape release component releases the tape, and the traction structure provides traction for the packaging material through the traction wheel, so that the packaging material moves and runs at a constant linear speed. The gap between the traction wheels of the traditional traction structure is a fixed size, and the size of the gap is determined by the position of the fixed wheel axle. When conveying packaging materials of different thicknesses, different gap adjustments must be made before the equipment is operated. Because the packaging material is very thin, the gap size is difficult to control; when the gap is adjusted too large, the traction force is insufficient, and the packaging material is easy to slip during operation, making the traction and conveying volume unstable; when the gap is adjusted too small, although the traction force is sufficient, the packaging material is easy to be thinned and deformed, affecting the quality of the cable, and when the gap is adjusted too small, the bearings of the traction roller and the pressure wheel are under too much pressure, which is easy to get stuck and fail, with a high failure rate, which is not conducive to continuous production and operation, and reduces production efficiency. Summary of the invention

[0003] The purpose of the present invention is to provide an off-center pressure wheel traction belt feeding mechanism which does not need to frequently adjust the position of the pressure wheel, can automatically adapt to the thickness of different packaging materials, reduces the occurrence of failures, and effectively improves production efficiency.

[0004] In order to achieve the above-mentioned purpose, the eccentric pressure wheel traction and feeding mechanism provided by the present invention includes a main shaft, a bearing seat, a lead turntable, an input roller, an output roller, a traction drive mechanism and a flexible pressure wheel feeding device, the main shaft is rotatably arranged on the bearing seat, the lead turntable is coaxially fixed on the main shaft, the input roller and the output roller are arranged on the lead turntable, the traction drive mechanism drives the main shaft to rotate, the flexible pressure wheel feeding device is eccentrically arranged on the lead turntable, and the flexible pressure wheel feeding device elastically clamps and pulls the packaging material so that the packaging material is sent out after passing through the main shaft, the input roller and the output roller.

[0005] Compared with the prior art, the present invention fixes the leader turntable on the main shaft, and eccentrically arranges the flexible pressure wheel feeding device on the leader turntable, and utilizes the flexible pressure wheel feeding device to elastically clamp the packaging material. Since the flexible pressure wheel feeding device has an elastic clamping force on the packaging material, it can effectively apply to packaging materials of different thicknesses without the need to manually frequently adjust the position of the pressure wheel. In addition, the elastic clamping force of the flexible pressure wheel feeding device prevents the center shaft of the pressure wheel from being subjected to excessive pressure, thereby avoiding the phenomenon of jamming, reducing the occurrence of failures, and effectively improving production efficiency.

[0006] Preferably, the flexible pressure wheel feeding device includes a pressure wheel mechanism and a pulley driving mechanism, the pressure wheel mechanism includes a wheel seat, a pulley, a pressure wheel, a central axis and an elastic member, the pulley is pivotally connected to the wheel seat, the central axis is arranged on the wheel seat, and the central axis is parallel to the central axis of the pulley, and the pressure wheel is rotatably arranged on the central axis; the packaging material passes between the pulley and the pressure wheel, the elastic member is arranged on the wheel seat and pressed against the central axis, so that the pressure wheel elastically presses the packaging material against the pulley with a certain pressure, and the pulley driving mechanism drives the pulley to rotate to pull the packaging material to move. By setting a central axis, the pressure wheel is rotatably set on the central axis, and is pressed against the central axis through an elastic member, so that the pressure wheel can elastically press the packaging material against the pulley. Therefore, it can elastically and automatically adapt to the thickness of the packaging material passing between the pressure wheel and the pulley and provide corresponding clamping force for the packaging material, without the need for frequent manual adjustment of the position of the pressure wheel.

[0007] Specifically, the wheel seat is provided with a receiving groove and positioning grooves arranged on opposite sides of the receiving groove, and the receiving groove and the positioning groove are both in a structure that opens to the outside of the wheel seat, and the pressure wheel is received in the receiving groove, and the two ends of the central shaft are clamped in the positioning grooves to fix the central shaft circumferentially. By providing the receiving groove, the pressure wheel can be quickly aligned with the pulley, and the positioning groove is provided, and the pressure wheel is rotatably arranged on the central shaft, so that the central shaft can be quickly clamped on the wheel seat, effectively improving the convenience of assembly. In addition, the central shaft does not need to rotate around its own central axis, which can prevent the central shaft from sliding and rubbing with the elastic member, thereby protecting the central shaft and the elastic member and effectively extending the service life of the parts.

[0008] Specifically, the elastic member is an elastic ring, which is sleeved on the outer circumference of the wheel seat and distributed at both ends of the central shaft to press the central shaft against the wheel seat. Since the pulley and the wheel seat are coaxially arranged, and the central shaft is arranged on one side of the wheel seat, the elastic member is an elastic ring and sleeved on the outer circumference of the wheel seat, which not only facilitates the assembly of the elastic ring and the wheel seat, but also makes the elastic structure simpler and reduces the maintenance cost.

[0009] Specifically, an annular groove is provided on the outer circumference of the wheel seat and at the two ends of the central axis, and the elastic ring is accommodated in the annular groove. By providing the annular groove, the elastic ring can be limited to prevent the elastic ring from axial movement and avoid the elastic ring from separating from the central axis, thereby ensuring the stability and reliability of operation.

[0010] Specifically, the pulley drive mechanism includes a driving motor, a driving pulley, a driven pulley, a driving belt, a transmission pulley and a transmission belt, wherein the driven pulley is coaxially fixed to one end of the pulley, and the driving pulley is arranged at the output end of the driving motor; the transmission pulley is coaxially and rotatably sleeved outside the main shaft, one end of the transmission pulley is provided with a first transmission pulley, and the other end is provided with a second transmission pulley, the transmission belt is wound between the driving pulley and the first transmission pulley, and the driving belt is wound between the second transmission pulley and the driven pulley. Since the flexible pressure wheel feeding device is arranged on the pulley turntable and rotates with the pulley turntable, therefore, by arranging the transmission pulley and the transmission belt, the transmission pulley can be arranged coaxially and rotatably with the main shaft, so that the driving motor can be arranged outside the main shaft and can also drive the pulley to rotate through the driving pulley, the driving belt, the transmission pulley, the transmission belt and the driven pulley, so that the structure is simpler and the maintenance is more convenient.

[0011] Specifically, the pressure wheel is located between the central axis of the main shaft and the pulley; the straight line from the opening to the bottom of the positioning groove and the straight line from the center of the pulley turntable to the pulley are on the same straight line. Since the pulley is driven by the belt of the pulley driving mechanism, the belt of the pulley driving mechanism exerts a centripetal force on the pulley, and the centrifugal force on the pulley during revolution is opposite to the centripetal force, and since the straight line where the positioning groove is located is located on the diameter of the pressure wheel revolution, the centrifugal force on the pressure wheel during revolution is also opposite to the centripetal force of the pulley, so that the pressure of the belt of the pulley driving mechanism can be offset, and thus the pressure on the bearings at both ends of the pulley is better or in a zero pressure state, preventing damage due to long-term use and pressure, so that the service life of the equipment is longer. In addition, when the pressure wheel revolves, it can press toward the pulley along the direction of the positioning groove under the action of centrifugal force. The higher the speed of the pulley turntable, the greater the centrifugal force. Therefore, the pressure of the pressure wheel on the pulley can be increased, thereby pulling the packaging material more stably.

[0012] Preferably, the off-center pressure wheel traction belt feeding mechanism further includes an anti-flagging mechanism, which is arranged on the lead turntable and is respectively located before the input roller and after the output roller along the conveying direction of the packaging material. This can prevent the packaging material from flanging after being conveyed from the main shaft or flanging before wrapping, ensuring that the packaging material is in a normal state during wrapping, thereby ensuring the quality of wire wrapping and achieving a better wrapping effect.

[0013] Specifically, the anti-flanging mechanism includes a first anti-flanging wheel and a second anti-flanging wheel, the first anti-flanging wheel and the anti-flanging wheel are rotatably arranged on the lead turntable, and the central axes of the two are parallel to the central axis of the main shaft, and the first anti-flanging wheel and the second anti-flanging wheel clamp the packaging material. By using the two anti-flanging wheels to adjust and tidy up the edge of the packaging material, the edge of the packaging material is prevented from flanging due to twisting before and after turning, so as to ensure that the edge of the packaging material is in a normal state.

[0014] Specifically, the elastic member is a spring or an elastic pressure block, which is respectively arranged at two ends of the central axis to provide an elastic force to press the central axis against the wheel seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a stereoscopic diagram of the off-center pressure wheel traction belt feeding mechanism of the present invention.

[0016] Figure 2 It is an axial cross-sectional view of the off-center pressure wheel traction belt feeding mechanism of the present invention.

[0017] Figure 3It is a side view of the off-center pressure wheel traction belt feeding mechanism of the present invention.

[0018] Figure 4 It is a stereoscopic view of the flexible pressure wheel feeding device of the present invention.

[0019] Figure 5 It is an axial cross-sectional view of the flexible pressure wheel feeding device of the present invention.

[0020] Figure 6 It is a side view of the flexible pressure wheel feeding device of the present invention.

[0021] Figure 7 It is an axial cross-sectional view of another embodiment of the flexible pressure wheel feeding device of the present invention.

[0022] Figure 8 It is an axial cross-sectional view of the third embodiment of the flexible pressure wheel feeding device of the present invention.

[0023] Fig. 9 It is a state diagram of another winding mode of the packaging material of the flexible pressure wheel feeding device of the off-center pressure wheel traction belt feeding mechanism of the present invention.

[0024] Fig.10 It is a state diagram of the third winding mode of the packaging material of the flexible pressure wheel feeding device of the off-center pressure wheel traction belt feeding mechanism of the present invention. DETAILED DESCRIPTION

[0025] In order to explain the technical content, structural features and achieved effects of the present invention in detail, the following is a detailed description in conjunction with the implementation methods and the accompanying drawings.

[0026] like Figures 1 to 3 As shown, the off-center pressure wheel traction belt feeding mechanism 100 of the present invention comprises a flexible pressure wheel feeding device 110, a main shaft 120, a bearing seat 130, a lead belt turntable 140, an input roller 150, an output roller 160 and a traction drive mechanism 170. The main shaft 120 is coaxially and rotatably arranged on the bearing seat 130. The lead belt turntable 140 is coaxially fixed on the main shaft 120, and the input roller 150 and the output roller 160 are arranged on the lead belt turntable 140, and the input roller 150 and the output roller 160 are symmetrically arranged. The traction drive mechanism 170 drives the main shaft 120 to rotate. The flexible pressure wheel feeding device 110 is eccentrically disposed on the lead turntable 140 , and the flexible pressure wheel feeding device 110 elastically clamps and pulls the packaging material 900 , so that the packaging material 900 is fed outward after passing through the main shaft 120 , the input roller 150 and the output roller 160 .

[0027] See also Figures 2 to 6The flexible pressure wheel feeding device 110 includes a pressure wheel mechanism 1 and a pulley driving mechanism 2. The pressure wheel mechanism 1 is eccentrically arranged on the lead turntable 140 and is used to clamp the packaging material 900. The pulley driving mechanism 2 is used to drive the pressure wheel mechanism 1 to rotate and thus drive the packaging material 900 to move. The pressure wheel mechanism 1 includes a wheel seat 11, a lead pulley 12, a pressure wheel 13, a central shaft 14 and an elastic member 15. The wheel seat 11 is arranged on the lead turntable 140. A bearing is provided between the lead pulley 12 and the wheel seat 11 so that the lead pulley 12 is coaxially pivoted to the wheel seat 11. The central shaft 14 is eccentrically arranged on the wheel seat 11, and the central shaft 14 is parallel to the central axis of the lead pulley 12, and the pressure wheel 13 is rotatably arranged on the central shaft 14. The packaging material 900 passes through the gap between the lead pulley 12 and the pressure wheel 13. The pulley 12 and the pressure wheel 13 clamp the packaging material 900 together. The elastic member 15 is arranged on the wheel seat 11 and pressed against the central axis 14, so that the pressure wheel 13 elastically presses the packaging material 900 against the pulley 12 with a certain pressure. The pulley driving mechanism 2 drives the pulley 12 to rotate to pull the packaging material 900 to move. By setting the central axis 14, the pressure wheel 13 is rotatably arranged on the central axis 14, and the elastic member 15 presses against the central axis 14, so that the pressure wheel 13 can elastically press the packaging material 900 against the pulley 12, thereby, it can elastically and automatically adapt to the thickness of the packaging material passing between the pressure wheel 13 and the pulley 12 and provide corresponding clamping force for the packaging material, without the need to manually frequently adjust the position of the pressure wheel 13.

[0028] Please see again Figure 4 and Figure 5The wheel seat 11 is provided with a receiving groove 11a and positioning grooves 11b arranged on opposite sides of the receiving groove 11a. The receiving groove 11a and the positioning groove 11b are both open to the outside of the wheel seat 11, and the extending direction of the positioning groove 11b is parallel to the central axis direction of the pulley 12. The pressure wheel 13 is received in the receiving groove 11a, and the two ends of the central axis 14 are clamped in the positioning grooves 11b to fix the central axis 14 circumferentially. Specifically, the cross section of the receiving groove 11a is a square structure, and the cross sections of the two ends of the central axis 14 are also square structures, so that the two can be clamped to each other to prevent rotation around their own central axis. By providing the receiving groove 11a, the pressure wheel 13 can be quickly aligned with the pulley 12, and the positioning groove 11b is provided, and the pressure wheel 13 is rotatably provided on the central shaft 14, so that the central shaft 14 can be quickly clamped on the wheel seat 11, effectively improving the convenience of assembly. In addition, the central shaft 14 does not need to rotate around its own central axis, which can prevent the central shaft 14 from sliding and rubbing with the elastic member 15, thereby protecting the central shaft 14 and the elastic member 15 and effectively extending the service life of the parts.

[0029] Please see again Figure 4 and Figure 5 , the elastic member 15 is an elastic ring, which is sleeved on the outer periphery of the wheel seat 11 and distributed at the two ends of the central axis 14 to press the central axis 14 against the wheel seat 11. Since the pulley 12 is coaxially arranged with the wheel seat 11, and the central axis 14 is arranged on one side of the wheel seat 11, the elastic member 15 is an elastic ring and sleeved on the outer periphery of the wheel seat 11, which not only facilitates the assembly of the elastic ring and the wheel seat 11, but also makes the elastic structure simpler and the maintenance cost lower. The elastic ring in this embodiment is a rubber band. By selecting rubber bands of different sizes or types, different elastic forces can be applied to the central axis 14, which is conducive to adapting to packaging materials 900 of different thicknesses. An annular groove 11c is provided on the outer periphery of the wheel seat 11 and at the two ends of the central axis 14, and the elastic ring is accommodated in the annular groove 11c. By providing the annular groove 11c, the elastic ring can be limited to prevent the elastic ring from axial movement and from detaching from the central axis 14, thereby ensuring the stability and reliability of operation. In addition, the elastic member 15 can also be a compression spring or a tension spring, which is respectively provided at both ends of the central axis 14 to provide an elastic force to press the central axis 14 against the wheel seat 11, and its function is similar to that of a rubber band.

[0030] For example Figure 7As shown, of course, in another embodiment, the elastic member may also be an elastic pressure block 15', and the elastic pressure block 15' is disposed on the wheel seat 11' through a bolt 16' and is distributed on both sides of the traction wheel 12. The elastic pressure block 15' may be an elastically deformable rubber block to elastically press against the central axis 14'. Specifically, the elastic pressure block 15' is fixed to one end of the bolt 16', and the bolt 16' is threadedly connected to the mounting plate 111' above the wheel seat 11'. By tightening the bolt 16', the elastic pressure block 15' can be adjusted to press against the central axis 14', and by utilizing its own elastic deformability, the central axis 14' has a certain radial movement space, so as to achieve the purpose of the pressure wheel 13' and the pulley 12' automatically adapting to the thickness of the packaging material. In addition, as Figure 8 As shown, the elastic pressing block 15' can also be a combination of a rigid pressing block 151' and a compression spring 152'. By arranging the compression spring 152' between the rigid pressing block 151' and the mounting plate 111' above the wheel seat 11, and sleeved on the guide rod 153', the rigid pressing block 151' can be elastically pressed against the central shaft 14', thereby making the pressing wheel 13' and the pulley 12' automatically adapt to the thickness of the packaging material, and the elastic pressing effect can also be achieved.

[0031] For example Figure 5 As shown, the outer circumference of the pulley 12 is provided with an annular matching groove 12a, and the side of the pressure wheel 13 close to the pulley 12 is accommodated in the annular matching groove 12a. This not only facilitates the alignment of the two, improves the convenience of assembly, but also reduces the occupied space between the pulley 12 and the pressure wheel 13, making the structure more compact and reasonable, and making the device smaller.

[0032] For example Figure 5 As shown, the wheel seat 11 is provided with a through hole 11d passing through both ends, the pulley 12 is arranged in the through hole 11d, the outer side of the middle part of the wheel seat 11 is provided with a limiting step 11e, the end face of the front end of the wheel seat 11 is provided with a pressure cover 111, the pressure cover 111 limits the central shaft 14 between the pressure cover 111 and the limiting step 11e, and the pressure cover 111 and the end of the pulley 12 are fixedly connected by fixing screws 112; in this way, the central shaft 14 and the pulley 12 can be quickly installed on the wheel seat 11, and assembly and maintenance are more convenient. The rear end of the wheel seat 11 is provided with an open groove 11f for accommodating the driven pulley 23.

[0033] See also Figure 2 and Figure 5The pulley drive mechanism 2 includes a driving motor 21, a driving pulley 22, a driven pulley 23 and a driving belt 24. The driven pulley 23 is coaxially fixed to the end of the pulley 12 away from the pressure wheel 13. The driving pulley 22 is arranged at the output end of the driving motor 21. The driving pulley 22 drives the driven pulley 23 to rotate through the driving belt 24. Specifically, the pulley drive mechanism 2 also includes a transmission pulley 25 and a transmission belt 26. The transmission pulley 25 is coaxially and rotatably sleeved on the outside of the main shaft 120. One end of the transmission pulley 25 is provided with a first transmission pulley 251, and the other end is provided with a second transmission pulley 252. The transmission belt 26 is wound between the driving pulley 22 and the first transmission pulley 251, and the driving belt 24 is wound between the second transmission pulley 252 and the driven pulley 23. The outer peripheries of the driven pulley 23 and the second transmission pulley 252 are both provided with gear teeth, and the inner side of the driving belt 24 is provided with teeth matching the gear teeth. In this way, the driving motor 21 can drive the pulley 12 to rotate, and will not affect the pulley 12 to follow the lead turntable 140 to revolve. In addition, by driving the pulley 12 to rotate through the driving belt 24, the tension of the driving belt 24 can offset the centrifugal force of the pulley 12 revolving, so that the pressure of the bearing carrying the pulley 12 is small or no pressure, and the service life of the bearing is extended. The driving motor 21 is a servo motor. Since the flexible pressure wheel feeding device 110 is arranged on the lead belt turntable 140 and rotates with the lead belt turntable 140, the drive pulley 25 and the drive belt 26 can be arranged so that the drive pulley 25 can be coaxially and rotatably arranged with the main shaft 120, so that the drive motor 21 can be arranged on the main shaft 120 and can also drive the lead belt 12 to rotate through the driving pulley 22, the transmission belt 26, the drive pulley 25, the driving belt 24 and the driven pulley 23, so that the structure is simpler and the maintenance is more convenient. More specifically, the driven pulley 23 and the lead belt 12 are in an integrated structure. In this way, the driven pulley 23 and the lead belt 12 can be processed at one time, reducing assembly errors and improving precision.

[0034] Please see again Figure 3When the flexible pressure wheel feeding device 110 is arranged on the lead turntable 140, the pressure wheel 13 is located between the central axis of the main shaft 120 and the lead pulley 12, and the center of the lead turntable 140 or the main shaft 120, the center of the pressure wheel 13 and the center of the lead pulley 12 are successively on the same straight line. In addition, the straight line from the opening to the bottom of the positioning groove 11b and the straight line from the center of the lead turntable 140 to the lead pulley 12 are on the same straight line. Since the pulley 12 is driven by the belt of the pulley driving mechanism 2, the belt of the pulley driving mechanism 2 applies a centripetal force to the pulley 12, and the centrifugal force to which the pulley 12 is subjected during revolution is opposite to the centripetal force, and since the straight line where the positioning groove 11b is located is located on the diameter of the pressure wheel revolution, the centrifugal force to which the pressure wheel 13 is subjected during revolution is also opposite to the centripetal force of the pulley 12, thereby offsetting the pressure of the belt of the pulley driving mechanism 2, and thus the pressure on the bearings at both ends of the pulley 12 is better or in a zero pressure state, thereby preventing damage due to long-term use and pressure, and making the service life of the equipment longer. In addition, the pressure wheel 13 can press against the pulley 12 along the direction of the positioning groove 11b under the action of centrifugal force during revolution, and the higher the speed of the lead turntable 140, the greater the centrifugal force, and thus the pressure of the pressure wheel 13 on the pulley 12 can be increased, thereby pulling the packaging material more stably.

[0035] For example Figure 2 As shown, the traction drive mechanism 170 includes a traction motor 171, a driving traction wheel 172, a driven traction wheel 173 and a traction belt 174. The output end of the traction motor 171 is connected to the driving traction wheel 172, and the traction motor 171 is a servo motor. The driven traction wheel 173 is fixedly connected to the main shaft 120, and the traction belt 174 is wound between the driving traction wheel 172 and the driven traction wheel 173. By providing the driving traction wheel 172, the driven traction wheel 173 and the traction belt 174, the traction motor 171 can drive the main shaft 120 and the lead turntable 140 to rotate, thereby providing power for wrapping the packaging material 900.

[0036] For example Figure 1 and Figure 3As shown, the off-center pressure wheel traction belt feeding mechanism 100 also includes an anti-flanging mechanism 180, which is arranged on the lead turntable 140 and is respectively located before the input roller 150 and after the output roller 160 along the conveying direction of the packaging material 900. In this way, the packaging material 900 can be prevented from flanging after being conveyed from the main shaft 120, or from flanging before wrapping, ensuring that the state of the packaging material 900 is normal during wrapping, thereby ensuring the quality of wire wrapping and achieving a better wrapping effect. Specifically, the lead turntable 140 is also provided with a first transition roller 141 and a second transition roller 142, both of which are perpendicular to the central axis of the main shaft 120, and the central axes of the input roller 150 and the output roller 160 are respectively parallel to the central axis of the main shaft 120. The lead turntable 140 is a circular structure; on one side of the central axis of one of the diameters of the lead turntable 140, a first transition roller 141, an anti-flapping mechanism 180, and an input roller 150 are sequentially arranged from the inside to the outside of the lead turntable 140; on the other side of the central axis of the same diameter of the lead turntable 140, a second transition roller 142, an anti-flapping mechanism 180, and an output roller 160 are sequentially arranged from the inside to the outside of the lead turntable 140. On the other diameter of the lead turntable 140 perpendicular to the one of the diameters, the flexible pressure wheel feeding device 110 is arranged on one side of the central axis of the lead turntable 140. After the packaging material 900 extends from the conveying channel 121 of the spindle 120, it passes through the first transition roller 141, one of the anti-flapping mechanisms 180, the input roller 150, the flexible pressure wheel feeding device 110, the output roller 160, another anti-flapping mechanism 180, and the second transition roller 142 in sequence. Specifically, the anti-flanging mechanism 180 includes a first anti-flanging wheel 181 and a second anti-flanging wheel 182, and the central axes of the first anti-flanging wheel 181 and the second anti-flanging wheel 182 are respectively parallel to the central axis of the main shaft 120. The first anti-flanging wheel 181 and the anti-flanging wheel are rotatably arranged on the lead turntable 140, and the central axes of the two are parallel to the central axis of the main shaft 120, and the first anti-flanging wheel 181 and the second anti-flanging wheel 182 clamp the packaging material 900. By using the two anti-flanging wheels to adjust and tidy up the edge of the packaging material 900, the edge of the packaging material 900 is prevented from flanging due to twisting before and after turning, and the edge state of the packaging material 900 is ensured to be normal.

[0037] For example Figure 1 and Figure 3As shown, the off-center pressure wheel traction belt feeding mechanism 100 further includes a counterweight 190 and a counterweight bracket 191. The counterweight 190 is eccentrically arranged on the lead belt turntable 140 and is located on a side opposite to the flexible pressure wheel feeding device 110. Specifically, on the other diameter of the lead belt turntable 140 perpendicular to one of the above diameters, the counterweight bracket 191 and the counterweight 190 are arranged on the other side of the central axis of the lead belt turntable 140, and are arranged opposite to the flexible pressure wheel feeding device 110; the counterweight 190 is cylindrical and is arranged on the counterweight bracket 191. The distance between the counterweight 190 and the center of the lead belt turntable 140 is equal to the distance between the flexible pressure wheel feeding device 110 and the center of the lead belt turntable 140, and the weight of the counterweight 190 and the pressure wheel mechanism 1 of the flexible pressure wheel feeding device 110 are equal or substantially equal. Since the flexible pressure wheel feeding device 110 is eccentrically arranged on the lead turntable 140, the centrifugal force on the lead turntable 140 is unbalanced when the lead turntable 140 rotates, the rotation is not stable enough, and the main shaft 120 is easily worn. Therefore, a counterweight block 190 is provided to balance the centrifugal force of the flexible pressure wheel feeding device 110, so that the force on the lead turntable 140 can be balanced, the rotation is more stable, the main shaft 120 is effectively protected, and the service life of the equipment is extended. In addition, a support rod 192 is extended from the counterweight bracket 191, and a guide roller 143 is provided at the front end of the support rod 192. The packaging material 900 passes through the guide roller 143 after being output from the second transition roller 142.

[0038] For example Figure 1 and Figure 3 As shown, in addition, in a preferred embodiment, the pressure wheel mechanism 1 of the flexible pressure wheel feeding device 110 of the present application is arranged on the lead turntable 140 in a quickly detachable manner, an adjusting screw 14a is arranged between the pressure wheel mechanism 1 and the lead turntable 140, a mounting groove 14b is provided on the lead turntable 140, the pressure wheel mechanism 1 is arranged in the mounting groove 14b, and there is a gap between the pressure wheel mechanism 1 and the mounting groove 14b, and the pressure wheel mechanism 1 can move along the diameter direction of the lead turntable 140. One end of the adjusting screw 14a is threadedly connected to the lead turntable 140 and extends into the mounting groove 14b and pushes the pressure wheel mechanism 1, so that the pressure wheel mechanism 1 can be positioned in the mounting groove 14b; thus, installation and disassembly are more convenient and quick.

[0039] In summary, the working principle of the off-center pressure wheel traction belt feeding mechanism 100 of the present invention is described in detail as follows:

[0040] First, the packaging material 900 enters from one end of the conveying channel 121 of the main shaft 120 and is output from the other end of the conveying channel 121, and passes through the first transition roller 141, one of the anti-flapping mechanisms 180, the input roller 150, the gap between the pressure roller 13 and the pulley 12 of the flexible pressure roller feeding device 110, the output roller 160, another anti-flapping mechanism 180, the second transition roller 142 and the guide roller 143. At the same time, the driving motor 21 of the pulley driving mechanism 2 is started, and the driving pulley 25 is driven to rotate through the driving pulley 22 and the driving belt 26. The driving pulley 25 drives the driven pulley 23 to rotate through the driving belt 24, and then drives the pulley 12 to rotate. The pressure wheel 13 rotates with the pulley 12 due to the elastic force, so the pressure wheel 13 and the pulley 12 jointly clamp the packaging material 900 and pull the packaging material 900 to move and transport. At the same time, the traction motor 171 of the traction drive mechanism 170 is also started at the same time, and the main shaft 120 is driven to rotate through the active traction wheel 172, the traction belt 174 and the driven traction wheel 173. The main shaft 120 drives the lead turntable 140 to rotate, and the lead turntable 140 can drive the packaging material 900 output from the guide roller 143 to wrap around the core wire.

[0041] In addition to the above embodiments, in order to make the traction force of the packaging material 900 more stable, the way in which the packaging material 900 surrounds the pressing wheel 13 and the pulley 12 can be changed. Fig. 9 As shown, after the packaging material 900 is led out from the input roller 150, it can first go around the pressing wheel 13 for half a circle downwards, then pass through the gap between the pressing wheel 13 and the lead pulley 12, then go around the lead pulley 12 for half a circle and then extend to the output roller 160. That is, by increasing the contact surface between the packaging material 900 and the pressing wheel 13 and the lead pulley 12, the lead pulley 12 can make the traction of the packaging material 900 more stable.

[0042] In addition, if Fig.10 As shown, the pressure wheel 13 is located on the outside of the lead wheel 12, that is, the lead wheel 12 is located between the central axis of the main shaft 120 and the pressure wheel 13; in this way, after the packaging material 900 is led out from the input roller 150, it passes through the gap between the pressure wheel 13 and the lead wheel 12, which can also increase the contact area between the packaging material 900 and the lead wheel 12, so that the traction of the packaging material 900 by the lead wheel is more stable.

[0043] Compared with the prior art, the present invention fixes the lead turntable 140 on the main shaft 120, and eccentrically arranges the flexible pressure wheel feeding device 110 on the lead turntable 140, and utilizes the flexible pressure wheel feeding device 110 to elastically clamp the packaging material 900. Since the flexible pressure wheel feeding device 110 has an elastic clamping force on the packaging material 900, it can effectively apply to packaging materials 900 of different thicknesses, and there is no need to manually frequently adjust the position of the pressure wheel 13. In addition, due to the elastic clamping force of the flexible pressure wheel feeding device 110, the central axis 14 of the pressure wheel 13 is prevented from being subjected to excessive pressure, thereby avoiding the phenomenon of jamming, reducing the occurrence of failures, and effectively improving production efficiency.

[0044] The above disclosure is only a preferred example of the present invention. This solution can not only transport packaging materials / wrapping tapes, but can also be used to transport wires / cables. It only needs to replace the rollers with rollers suitable for transporting wires. The description will not be repeated here. Therefore, the scope of the rights of the present invention cannot be limited by this. Any equivalent changes made according to the scope of the patent application of the present invention still fall within the scope covered by the present invention.

Claims

1. An off-center pressure wheel traction belt feeding mechanism, characterized in that: It includes a main shaft, a bearing seat, a lead turntable, an input roller, an output roller, a traction drive mechanism and a flexible pressure wheel feeding device, the main shaft is rotatably arranged on the bearing seat, the lead turntable is coaxially fixed on the main shaft, the input roller and the output roller are arranged on the lead turntable, the traction drive mechanism drives the main shaft to rotate, the flexible pressure wheel feeding device is eccentrically arranged on the lead turntable, and the flexible pressure wheel feeding device elastically clamps and pulls the packaging material so that the packaging material is sent out after passing through the main shaft, the input roller and the output roller.

2. The off-center pressure wheel traction belt feeding mechanism according to claim 1, characterized in that: The flexible pressure wheel feeding device includes a pressure wheel mechanism and a pulley driving mechanism. The pressure wheel mechanism includes a wheel seat, a pulley, a pressure wheel, a central shaft and an elastic member. The pulley is pivotally connected to the wheel seat, the central shaft is arranged on the wheel seat, and the central shaft is parallel to the central axis of the pulley, and the pressure wheel is rotatably arranged on the central shaft; the packaging material passes between the pulley and the pressure wheel, the elastic member is arranged on the wheel seat and pressed against the central shaft, so that the pressure wheel elastically presses the packaging material against the pulley with a certain pressure, and the pulley driving mechanism drives the pulley to rotate to pull the packaging material to move.

3. The off-center pressure wheel traction belt feeding mechanism according to claim 2, characterized in that: The wheel seat is provided with a receiving groove and positioning grooves arranged on opposite sides of the receiving groove. The receiving groove and the positioning groove are both open to the outside of the wheel seat. The pressure wheel is received in the receiving groove, and the two ends of the central axis are clamped in the positioning grooves to fix the central axis circumferentially.

4. The off-center pressure wheel traction belt feeding mechanism according to claim 2, characterized in that: The elastic member is an elastic ring, which is sleeved on the outer periphery of the wheel seat and distributed at both ends of the central axis to press the central axis against the wheel seat.

5. The off-center pressure wheel traction belt feeding mechanism according to claim 4, characterized in that: Annular grooves are arranged on the outer periphery of the wheel seat and at the two ends of the central axis, and the elastic ring is accommodated in the annular grooves.

6. The off-center pressure wheel traction belt feeding mechanism according to claim 2, characterized in that: The pulley drive mechanism includes a driving motor, a driving pulley, a driven pulley, a driving belt, a transmission pulley and a transmission belt. The driven pulley is coaxially fixed to one end of the lead pulley, and the driving pulley is arranged at the output end of the driving motor; the transmission pulley is coaxially and rotatably sleeved on the outside of the main shaft, one end of the transmission pulley is provided with a first transmission pulley, and the other end is provided with a second transmission pulley, the transmission belt is wound around the driving pulley and the first transmission pulley, and the driving belt is wound around the second transmission pulley and the driven pulley.

7. The off-center pressure wheel traction belt feeding mechanism according to claim 3, characterized in that: The pressure wheel is located between the central axis of the main shaft and the pulley; the straight line from the opening to the bottom of the positioning groove and the straight line from the center of the pulley turntable to the pulley are on the same straight line.

8. The off-center pressure wheel traction belt feeding mechanism according to claim 1, characterized in that: The off-center pressure wheel traction belt feeding mechanism also includes an anti-flapping mechanism, which is arranged on the lead turntable and is located before the input roller and after the output roller along the conveying direction of the packaging material.

9. The off-center pressure wheel traction belt feeding mechanism according to claim 8, characterized in that: The anti-flipping mechanism includes a first anti-flipping wheel and a second anti-flipping wheel. The first anti-flipping wheel and the anti-flipping wheel are rotatably arranged on the lead turntable, and the central axes of the two are parallel to the central axis of the main shaft. The first anti-flipping wheel and the second anti-flipping wheel clamp the packaging material.

10. The off-center pressure wheel traction belt feeding mechanism according to claim 2, characterized in that: The elastic member is a spring or an elastic pressure block, which is respectively arranged at two ends of the central axis to provide an elastic force to press the central axis against the wheel seat.

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