Winding mechanism for flexible packaging material

Abstract

The utility model belongs to the technical field of packaging and printing, and particularly relates to a flexible packaging material winding mechanism which comprises a rack, two rotating assemblies and four winding assemblies. The two rotary assemblies are arranged on the rack and are distributed up and down; the four winding assemblies are arranged on the two rotating assemblies in a pairwise mode, each winding assembly comprises a second rotating driver and a winding inflatable shaft in driving connection with the second rotating driver, and each rotating assembly drives the two winding inflatable shafts to rotate so as to exchange the positions. Under the driving of the two rotary assemblies, every two of the four winding air expansion shafts are switched in position, the two winding air expansion shafts are replaced for winding operation, meanwhile, a product which is wound previously is unloaded, and enough time is provided for carefully checking the quality of a paper core and accurately positioning the paper core when a new paper core is replaced, so that the production efficiency is improved. The hidden danger that the paper core of a reel product is loosened and is not aligned with the product due to the fact that the paper core with the quality problem is not found in time is effectively avoided, the production efficiency is improved, and the product quality is guaranteed.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of packaging printing, and particularly relates to a winding mechanism of soft packaging material. BACKGROUND

[0002] In the printing industry, a slitting machine (also known as a slitting machine or a cutting machine) is a key post-processing equipment, which is mainly used for cutting a large-width roll material (such as paper, film, metal foil, adhesive sticker, etc.) into multiple narrow-width roll materials according to a specific width to meet the needs of subsequent processing or terminal use. The narrow-width roll material is wound by a special winding mechanism.

[0003] The existing winding mechanism on the slitting machine device has one winding expansion shaft in front of and behind each winding expansion shaft. The products on the winding expansion shaft need to be manually removed, and then the same product specification paper core is sleeved on the fixed position of the front and rear winding expansion shafts, which has an adverse effect on production efficiency. In order to ensure high production efficiency, sometimes the workers do not have time to carefully check the quality of the paper core; in some cases, such as when an individual paper core is soft or deformed, not carefully checking the quality of the paper core will seriously affect the product quality. SUMMARY

[0004] The technical problem to be solved by the application is to provide a winding mechanism of soft packaging material, which solves the problem that high production efficiency and careful inspection of the quality of the paper core cannot be considered.

[0005] The application provides a winding mechanism of soft packaging material, which comprises:

[0006] a rack;

[0007] two rotating assemblies arranged on the rack and distributed in an up-down manner;

[0008] four winding assemblies arranged in pairs on the two rotating assemblies, wherein each winding assembly comprises a second rotating driver and a winding expansion shaft in driving connection with the second rotating driver, and each rotating assembly drives the two winding expansion shafts to rotate to exchange positions.

[0009] Optionally, the winding mechanism further comprises two rotating support assemblies arranged on the rack and corresponding to the two rotating assemblies, wherein each rotating support assembly comprises a third rotating driver, a support arm in driving connection with the third rotating driver, and two limiters arranged on the support arm, the support arm is provided with two center-symmetrical limit grooves, and the two limit grooves take the rotation axis of the support arm as a center line of symmetry.

[0010] The winding expansion shaft is provided with a rotating sleeve at one end away from the second rotating driver, the rotating sleeve is matched with the corresponding limit groove, and the limiter is matched with the corresponding limit groove to press the rotating sleeve.

[0011] Optionally, the position limiter comprises a first linear extender and a position limiting rod arranged on the execution end of the first linear extender, the first linear extender drives the position limiting rod to extend or retract, so as to switch the pressing and loosening of the rotating sleeve.

[0012] Optionally, the third rotating driver comprises a third driving motor arranged on the frame and a driving shaft connected with the output shaft of the third driving motor, the driving shaft is connected with the supporting arm, and the two position limiting grooves are symmetrically arranged with the axis of the driving shaft as the center line.

[0013] Optionally, the rotating sleeve comprises a bearing, and the bearing is in interference fit with one end of the winding inflatable shaft.

[0014] Optionally, the first linear extender is an electric cylinder, a pneumatic cylinder or an oil cylinder, and the position limiting rod has an arc-shaped groove for being attached to the surface of the rotating sleeve.

[0015] Optionally, the winding mechanism further comprises a discharging assembly, the discharging assembly comprises a fixed base, a support arranged on the base, two second linear extenders arranged on the support in an up-down distribution, and two discharging arms arranged on the execution ends of the two second linear extenders respectively, and the two discharging arms are used for being respectively connected with the corresponding winding inflatable shaft.

[0016] Optionally, one end of the discharging arm has a connecting hole for inserting the rotating sleeve at the end of the corresponding winding inflatable shaft.

[0017] Optionally, the second linear extender is an electric cylinder, a pneumatic cylinder or an oil cylinder.

[0018] Optionally, the connecting hole is a round hole, a countersunk hole or a tapered hole.

[0019] Optionally, the rotating assembly comprises a rotating disc rotatably arranged on the frame, and a first rotating driver fixedly arranged, the first rotating driver is used for driving the rotating disc to rotate, and the two second rotating drivers are arranged on the rotating disc.

[0020] Optionally, the first rotating driver comprises a first driving motor, the output shaft of the first driving motor is directly connected with the rotating disc, the first driving motor is a servo motor, a stepping motor, a speed reducer or a hydraulic motor, and the two second rotating drivers are centrally and symmetrically arranged with the axis of the first rotating driver as the center line.

[0021] Optionally, the second rotating driver comprises a second driving motor, the output shaft of the second driving motor is directly connected with the winding inflatable shaft, and the second driving motor is a servo motor, a stepping motor or a speed reducer.

[0022] Optionally, the second rotating driver comprises a bearing seat fixedly arranged on the rotating disc, a mounting frame fixedly arranged on the bearing seat, a second driving motor arranged on the mounting frame, a driving pulley rotatably arranged on the mounting frame, a driven pulley arranged on one end of the winding inflatable shaft, a transmission belt for transmission between the driving pulley and the driven pulley, the second driving motor is directly connected with the driving pulley, and one end of the winding inflatable shaft is connected with the bearing seat through a bearing.

[0023] The beneficial effect of the present application is that the same specification paper cores are arranged on the four winding inflatable shafts, and the paper cores are fixed by inflation, wherein one winding inflatable shaft is arranged at a specified position, and the soft packaging material is wound to a specified length under the driving of the corresponding second rotating driver. Under the driving of the two rotary assemblies, the four winding inflatable shafts are converted in position two by two, the two winding inflatable shafts on the top are replaced for winding operation, and there is enough time to carefully check the quality of the paper core and accurately position when the new paper core is replaced, which effectively avoids the hidden danger of loose paper core and misalignment of the product due to the fact that the paper core with quality problems is not found in time, improves the production efficiency, and guarantees the product quality. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 The structure schematic diagram of the winding mechanism provided by the present application is shown in the figure;

[0025] Figure 2 The enlarged view of the A area in the figure; Figure 1

[0026] Figure 3 The enlarged view of the B area in the figure; Figure 1

[0027] Figure 4 The structure schematic diagram of the rotary support assembly provided by the present application is shown in the figure;

[0028] Figure 5 The enlarged view of the C area in the figure. Figure 4

[0029] ​​​In the diagram: 10, frame; 20, rotary assembly; 210, first rotary driver; 220, turntable; 30, winding assembly; 310, second rotary driver; 311, bearing housing; 312, mounting bracket; 313, second drive motor; 314, driven pulley; 320, winding air shaft; 330, rotating sleeve; 40, rotary support assembly; 410, third rotary driver; 411, third drive motor; 412, drive shaft; 420, support arm; 421, limiting groove; 430, limiter; 431, first linear telescopic device; 432, limiting rod; 4321, arc groove; 50, unloading assembly; 510, base; 520, support column; 530, second linear telescopic device; 540, unloading arm; 541, docking hole. Detailed Implementation

[0030] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0031] like Figures 1-5 As shown, the present application provides a winding mechanism for flexible packaging materials, comprising: a frame 10, two rotating components 20, and four winding components 30; wherein, the two rotating components 20 are disposed on the frame 10 and are arranged vertically; the four winding components 30 are respectively disposed on the two rotating components 20 in pairs, and each winding component 30 includes a second rotation driver 310 and a winding air shaft 320 drivenly connected to the second rotation driver 310, wherein each rotating component 20 drives the two winding air shafts 320 to rotate to exchange positions.

[0032] Compared with existing technologies, the winding mechanism provided in this application sets paper cores of the same specification on four winding air shafts 320. Inflating and expanding the paper cores secures them. One winding air shaft 320 at the top and one at the bottom are positioned at designated locations and, driven by the corresponding second rotary drive 310, winds the flexible packaging material to a designated length. Driven by the two rotary components 20, the four winding air shafts 320 switch positions in pairs, with the two replaced air shafts performing the winding operation. Simultaneously, sufficient time is available to carefully inspect the quality and accurately position the paper cores when unloading the previously wound product and replacing them with new ones. This effectively avoids the risk of loose paper cores and misalignment due to undetected defective paper cores, improving production efficiency and ensuring product quality.

[0033] It should be noted that the frame 10 can be fixed to the hardened ground with multiple screws.

[0034] In one possible implementation, such as Figure 4As shown, the winding mechanism further comprises two rotating support assemblies 40 arranged on the frame 10 and corresponding to the two rotating assemblies 20 respectively, each rotating support assembly 40 comprising a third rotating driver 410, a support arm 420 drivingly connected with the third rotating driver 410, two limiters 430 arranged on the support arm 420, the support arm 420 being provided with two center-symmetrical limit grooves 421, and the two limit grooves 421 taking the rotating axis of the support arm 420 as the center line of symmetry; the winding inflatable shaft 320 being provided with a rotating sleeve 330 at the end away from the second rotating driver 310, the rotating sleeve 330 being matched with the corresponding limit groove 421, and the limiter 430 being matched with the corresponding limit groove 421 for pressing the rotating sleeve 330.

[0035] Specifically, the two third rotating drivers 410 are fixedly installed on the frame 10, and each of the two third rotating drivers 410 drives the corresponding support arm 420 to rotate to a certain angle, just so that the two rotating sleeves 330 on the end portions of the two winding inflatable shafts 320 above are placed in the two limit grooves 421 of one support arm 420, and the two rotating sleeves 330 on the end portions of the two winding inflatable shafts 320 below are placed in the two limit grooves 421 of the other support arm 420, and then the execution ends of the four limiters 430 installed at the two ends of the two support arms 420 are respectively abutted against the surfaces of the four rotating sleeves 330 to fix the four rotating sleeves 330, and when the four winding inflatable shafts 320 rotate, the four limiters 430 play a supporting role, so that the winding inflatable shafts 320 have higher stability. The execution ends of the four limiters 430 are reset to loosen the four rotating sleeves 330, and under the driving of the two rotating assemblies 20, the four winding inflatable shafts 320 are switched in position by pair, and the two support arms 420 are synchronously rotated by a certain angle, so that the four rotating sleeves 330 can be fixed again.

[0036] In one possible implementation, the limiter 430 comprises a first linear extender 431 and a limiting rod 432 arranged on the execution end of the first linear extender 431, and the first linear extender 431 drives the limiting rod 432 to extend and retract for switching the pressing and loosening of the rotating sleeve 330. Specifically, the first linear extender 431 drives the limiting rod 432 to pass through the end portion of the support arm 420 and extend to the side of the surface of the rotating sleeve 330 opposite to the limit groove 421, so as to cooperate with the inner wall of the limit groove 421 to clamp the rotating sleeve 330.

[0037] In a possible implementation, the third rotating driver 410 includes a third driving motor 411 arranged on the rack 10 and a driving shaft 412 connected with an output shaft of the third driving motor 411, the driving shaft 412 is connected with the support arm 420, and two limiting grooves 421 are symmetrically arranged with the axis of the driving shaft 412 as a center line. Specifically, the third driving motor 411 is a servo motor or a stepping motor, which rotates the support arm 420 (synchronously and in the same direction with the rotating assembly 20) through direct driving to complete the conversion of the four winding inflatable shafts 320 two by two.

[0038] In a possible implementation, the limiting groove 421 is a U-shaped groove or a circular arc groove.

[0039] In a possible implementation, the rotating sleeve 330 includes a bearing, and the bearing is in interference fit with one end of the winding inflatable shaft 320. Specifically, the first linear actuator 431 drives the limiting rod 432 to pass through the end of the support arm 420 and extend to the surface of the bearing on the side opposite to the limiting groove 421, so as to be clamped with the inner wall of the limiting groove 421.

[0040] In a possible implementation, as shown in Figure 5 , the first linear actuator 431 is an electric cylinder, a pneumatic cylinder or an oil cylinder. According to the production needs, it can be flexibly selected, and the adaptability is stronger. The limiting rod 432 has an arc-shaped groove 4321 arranged thereon, and the arc-shaped groove 4321 is used to fit the surface of the rotating sleeve 330. The arc-shaped groove 4321 makes the contact surface of the limiting rod 432 and the rotating sleeve 330 larger, which is beneficial to improve the limiting effect on the rotating sleeve 330.

[0041] In a possible implementation, as shown in Figure 1 , the winding mechanism further includes a discharging assembly 50, the discharging assembly 50 includes a fixedly arranged base 510, a support 520 arranged on the base 510, two second linear actuators 530 arranged in an up-down distribution on the support 520, and two discharging arms 540 arranged on the execution ends of the two second linear actuators 530 respectively, the two discharging arms 540 are used to respectively abut against the corresponding winding inflatable shaft 320.

[0042] Specifically, the base 510 can be fixed on the hardened ground, the support column 520 is fixed or welded on the base 510 through a plurality of screws, two second linear extenders 530 are installed on the support column 520, the heights of the two unloading arms 540 are consistent with the corresponding two winding inflatable shafts 320 respectively, the two unloading arms 540 are extended through the two second linear extenders 530, the two unloading arms 540 are docked with the corresponding two winding inflatable shafts 320 respectively, the products wound on the two winding inflatable shafts 320 are pushed to the two unloading arms 540, then the two unloading arms 540 are reset, the products are removed, and subsequently, new paper cores are placed on the two winding inflatable shafts 320.

[0043] In one possible implementation, as shown in Figure 3 the end of the unloading arm 540 has a docking hole 541, the docking hole 541 is used for inserting the rotating sleeve 330 at the end of the corresponding winding inflatable shaft 320. Specifically, the two unloading arms 540 are extended through the two second linear extenders 530, the rotating sleeve 330 at the end of the winding inflatable shaft 320 is concentrically matched with the docking hole 541, and the docking is completed.

[0044] In one possible implementation, the second linear extender 530 is an electric cylinder, a pneumatic cylinder or an oil cylinder. According to the production needs, it can be flexibly selected and more adaptable.

[0045] In one possible implementation, the docking hole 541 is a round hole, a countersunk hole or a tapered hole. Specifically, the docking hole 541 is a round hole, the round hole is matched with the rotating sleeve 330 through a gap or a transition fit, providing basic positioning and radial support for the winding inflatable shaft 320, and ensuring the stable position of the axis of the winding inflatable shaft 320. The docking hole 541 is a countersunk hole or a tapered hole, which can ensure that the unloading arm 540 is aligned with the axis of the rotating sleeve 330, reducing eccentricity error.

[0046] In one possible implementation, the rotary assembly 20 includes a rotating disc 220 rotatably arranged on the rack 10, a first rotating driver 210 fixedly arranged, the first rotating driver 210 being used to drive the rotating disc 220 to rotate, and two second rotating drivers 310 arranged on the rotating disc 220. Specifically, the rotating disc 220 can be installed at the reserved hole position of the rack 10 through a rotary support bearing, the first rotating driver 210 can be installed on the rack 10 or the bottom surface through a corresponding rack body (not shown in the figure), the rotating disc 220 is driven to rotate by the first rotating driver 210, so that the two second rotating drivers 310 rotate around the axis of the rotating disc 220, in order to avoid cable winding, the rotating disc 220 is reciprocated within a certain angle range, and one reciprocation of the rotating disc 220 is used for switching the two winding inflatable shafts 320 between the winding operation position and the unloading position.

[0047] In a possible implementation, the first rotating driver 210 comprises a first driving motor, an output shaft of the first driving motor is directly connected with the rotating disc 220, the first driving motor is a servo motor, a stepping motor, a reduction motor or a hydraulic motor, and the two second rotating drivers 310 are symmetrically arranged with the axis of the first rotating driver 210 as a center line. Specifically, the first driving motor (servo / stepping / reduction motor or hydraulic motor) is directly coupled with the rotating disc 220 through an output shaft to realize a direct driving mode without an intermediate transmission mechanism. Precise angle positioning and rotating speed adjustment of the rotating disc 220 are realized through a closed-loop control system (servo motor) or pulse control (stepping motor).

[0048] In a specific implementation, the first rotating driver 210 adopts a servo motor as a driving source, an output shaft of the servo motor is coaxially and rigidly connected with the steel disc-shaped rotating disc 220 through a flange coupling. The two second rotating drivers 310 are symmetrically arranged on the two radial sides of the rotating disc 220, and the symmetric axis coincides with the axis of the first driver.

[0049] In a possible implementation, the second rotating driver 310 comprises a second driving motor 313, an output shaft of the second driving motor 313 is directly connected with the winding inflatable shaft 320, and the second driving motor 313 is a servo motor, a stepping motor or a reduction motor. Specifically, the second driving motor 313 is rigidly and directly connected with the winding inflatable shaft 320 through an output shaft to form a straight power transmission path of “motor-output shaft-inflatable shaft”. When the second driving motor 313 is powered on and operates, the output torque of the second driving motor 313 directly acts on the inflatable shaft without passing through an intermediate transmission device such as a gear box or a belt pulley. The direct driving structure eliminates the energy loss of a traditional reduction mechanism and improves transmission efficiency. The technical scheme realizes significant technical advantages in power transmission accuracy, energy consumption efficiency and working condition adaptability of the winding equipment through direct driving structure innovation and multi-mode motor selection, and is particularly suitable for the field of flexible material processing which needs precise tension control.

[0050] In a possible implementation, as shown in FIG. 6, the second rotating driver 310 comprises a second driving motor 313, an output shaft of the second driving motor 313 is directly connected with the winding inflatable shaft 320, and the second driving motor 313 is a servo motor, a stepping motor or a reduction motor. Figure 2As shown, the second rotating driver 310 includes a bearing seat 311 fixedly arranged on the rotating disc 220, a mounting frame 312 fixedly arranged on the bearing seat 311, a second driving motor 313 arranged on the mounting frame 312, a driving pulley rotatably arranged on the mounting frame 312, a driven pulley 314 arranged on one end of the winding inflatable shaft 320, a transmission belt for transmission between the driving pulley and the driven pulley 314, the second driving motor 313 is directly connected with the driving pulley, and one end of the winding inflatable shaft 320 is connected with the bearing seat 311 through a bearing. Specifically, the driving pulley and the driven pulley 314 are connected through the transmission belt, and the flexible characteristics of the belt transmission can effectively buffer the impact load generated when the motor starts or stops or the load suddenly changes, thereby avoiding the damage of the equipment caused by the rigid transmission. The driving motor, the pulley set and the winding shaft are integrated around the bearing seat 311 on the rotating disc 220, the structure space of the rotating disc 220 is fully utilized, a compact rotating driving unit is formed, and the rotating driving unit is particularly suitable for the composite equipment which needs rotating stations and synchronous winding functions.

[0051] Those skilled in the art should understand that the above discussion of any embodiment is only exemplary and is not intended to limit the protection scope of the present application to these examples; under the idea of the present application, the above embodiments or technical features in different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of one or more embodiments of the present application as described above. In order to be brief, they are not provided in details.

[0052] One or more embodiments of the present application are intended to cover all such alternatives, modifications and variations falling within the broad scope of the present application. Therefore, any omission, modification, equivalent replacement, improvement, etc. made in the spirit and principles of one or more embodiments of the present application should be included in the protection scope of the present application.

Claims

1. A winding mechanism of a flexible packaging material, characterized by The utility model relates to a kind of roll-up machine, including: Frame (10); Two rotary assemblies (20) are arranged on the frame (10) and are distributed in up and down; Four winding assemblies (30) are arranged on the two rotary assemblies (20) respectively, and the winding assembly (30) includes a second rotating driver (310), a winding inflatable shaft (320) drivenly connected with the second rotating driver (310), and each of the rotary assemblies (20) drives two winding inflatable shafts (320) to rotate to exchange positions.

2. The winding mechanism according to claim 1, characterized in that It also includes two rotary support assemblies (40) arranged on the frame (10) and corresponding to the two rotary assemblies (20) respectively, each of the rotary support assemblies (40) includes a third rotating driver (410), a support arm (420) drivenly connected with the third rotating driver (410), two limiters (430) arranged on the support arm (420), the support arm (420) is provided with two limit grooves (421) which are symmetrically centered on the axis of rotation of the support arm (420); The winding inflatable shaft (320) is provided with a rotating sleeve (330) at one end away from the second rotating driver (310), the rotating sleeve (330) is matched with the corresponding limit groove (421), and the limiter (430) is matched with the corresponding limit groove (421) to press the rotating sleeve (330).

3. The winding mechanism of claim 2, wherein, The limiter (430) includes a first linear extender (431) and a limiting rod (432) arranged on the execution end of the first linear extender (431), the first linear extender (431) drives the limiting rod (432) to extend and retract, for switching to press and release the rotating sleeve (330); And / or, the third rotating driver (410) includes a third drive motor (411) arranged on the frame (10) and a drive shaft (412) connected with the output shaft of the third drive motor (411), the drive shaft (412) is connected with the support arm (420), and the two limit grooves (421) are symmetrically centered on the axis of the drive shaft (412); And / or, the rotating sleeve (330) includes a bearing, and the bearing is interference-fitted with one end of the winding inflatable shaft (320).

4. The winding mechanism of claim 3, wherein, The first linear extender (431) is an electric cylinder, an air cylinder or an oil cylinder, and the limiting rod (432) has an arc-shaped groove (4321) thereon, which is used to fit the surface of the rotating sleeve (330).

5. The winding mechanism according to any one of claims 2-4, characterized in that It also includes an unloading assembly (50), the unloading assembly (50) includes a fixedly arranged base (510), a support column (520) arranged on the base (510), two second linear extenders (530) arranged on the support column (520) in up and down, two unloading arms (540) arranged on the execution ends of the two second linear extenders (530) respectively, and the two unloading arms (540) are used for respectively abutting against the corresponding winding inflatable shaft (320).

6. The winding mechanism of claim 5, wherein, One end of the discharging arm (540) has a butt joint hole (541) for inserting a rotating sleeve (330) at the end of the corresponding winding air expansion shaft (320); And / or, the second linear telescopic device (530) is an electric cylinder, a pneumatic cylinder or an oil cylinder.

7. The winding mechanism of claim 6, wherein, The butt joint hole (541) is a round hole, a countersunk hole or a tapered hole.

8. The winding mechanism according to any of claims 1-4, 6, 7, characterized in that, The rotary assembly (20) comprises a rotating disc (220) rotatably arranged on a rack (10), a first rotating driver (210) fixedly arranged, the first rotating driver (210) being used for driving the rotating disc (220) to rotate, and two second rotating drivers (310) arranged on the rotating disc (220).

9. The winding mechanism of claim 8, wherein, The first rotating driver (210) comprises a first driving motor, an output shaft of the first driving motor being directly connected with the rotating disc (220), the first driving motor being a servo motor, a stepping motor, a speed reduction motor or a hydraulic motor, and the two second rotating drivers (310) are centrally and symmetrically arranged with the axis of the first rotating driver (210) as the center line. And / or, the second rotating driver (310) comprises a second driving motor (313), an output shaft of the second driving motor (313) being directly connected with the winding air expansion shaft (320), and the second driving motor (313) being a servo motor, a stepping motor or a speed reduction motor.

10. The winding mechanism of claim 8, wherein, The second rotating driver (310) comprises a bearing seat (311) fixedly arranged on the rotating disc (220), a mounting frame (312) fixedly arranged on the bearing seat (311), a second driving motor (313) arranged on the mounting frame (312), a driving pulley rotatably arranged on the mounting frame (312), a driven pulley (314) arranged at one end of the winding air expansion shaft (320), a transmission belt for transmission between the driving pulley and the driven pulley (314), the second driving motor (313) being directly connected with the driving pulley, and one end of the winding air expansion shaft (320) being connected with the bearing seat (311) through a bearing.

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