Paper unwinding device for paper roll

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By designing a paper-loading device that includes supporting frame, drive shaft, air-swelling shaft, rolling shaft, clamp and other components, the problems of inefficiency of traditional devices and a lot of manual intervention are solved, and the stable guidance and automatic deviation correction of paper rolls are achieved. Improves processing efficiency and flatness.

CN222523887UActive Publication Date: 2025-02-25CHUANQI ELECTRICAL APPLIANCE SHENYANG CO LTD

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Patent Information

Application Number: CN202420542645.7
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-03-19
Publication Date: 2025-02-25
Estimated Expiration: 2034-03-19

AI Technical Summary

Technical Problem

Traditional paper loading devices are inefficient and have excessive manual intervention during paper roll processing.

Method used

A paper-loading device including a support frame, a drive shaft, an air-swelling shaft, a rolling shaft, a clamp, a clamp mounting frame, a vibrating electric cylinder, a deviation correction sensor, a tension sensor and a magnetic powder damper are designed. The device fixes the paper roll through an air-scaling shaft, and uses the rolling shaft and plywood to achieve stable guidance and deviation correction of the paper roll.

Benefits of technology

It improves the pull-out efficiency of the paper roll, reduces manual intervention, realizes stable guidance and automatic deviation correction of the paper roll, and improves the flatness and efficiency of the overall processing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a paper unwinding device for a paper roll, which comprises a supporting frame, a paper unwinding device and a paper unwinding device, and is characterized in that the supporting frame comprises a flat base part and two side parts which are vertical to the base part and are parallel to each other; the driving shaft extends perpendicular to the two side parts and is provided with a first end and a second end which are opposite to each other, and the first end is connected in one side part; the air expansion shaft is arranged outside the driving shaft in a sleeving mode and fixed to the driving shaft, and the paper roll is connected to the air expansion shaft in a sleeving mode and can be fixed to the air expansion shaft through expansion of the air expansion shaft; each rolling shaft can rotate around the axis of the rolling shaft and is vertically connected between the two side parts, the rolling shafts are parallel to one another and are arranged at intervals to form a U-shaped structure so as to surround the paper roll, and a pull-out part of the paper roll sequentially bypasses the rolling shafts so as to be guided by the rolling shafts. Through the arrangement mode, automatic paper roll tension balance can be achieved, paper roll balance is ensured, the applicability is wide, and cost is saved.

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Description

Technical Field

[0001] The present application relates to a paper placing device for a paper roll. Background Art

[0002] For the traditional paper placing device, there are problems of low efficiency and excessive manual intervention in the paper roll processing process. Utility Model Content

[0003] In order to overcome the above-mentioned defects existing in the prior art, the present application provides a paper placing device for a paper roll, the paper placing device comprising: a support frame, the support frame comprising a flat base and two side portions perpendicular to the base and parallel to each other; a driving shaft, the driving shaft extending perpendicular to the two side portions and having a first end and a second end opposite to each other, the first end being connected to one of the two side portions to cooperate with a driving mechanism arranged in the side portion and being driven to rotate by the driving mechanism; an air expansion shaft, the air expansion shaft being sleeved on the outside of the driving shaft and fixed to the driving shaft, the paper roll being sleeved on the air expansion shaft and being fixed to the air expansion shaft by the expansion of the air expansion shaft; and a plurality of rolling shafts, each of which can rotate around its own axis and is perpendicularly connected to the two side portions between the two side portions, the plurality of rolling shafts being parallel to each other and spaced apart from each other and arranged to have a U-shaped structure to surround the paper roll, the pulled-out portion of the paper roll sequentially bypasses the plurality of rolling shafts to be guided by the plurality of rolling shafts. Accordingly, stable guidance of the pulled-out portion of the paper roll can be achieved.

[0004] Furthermore, the paper placing device also includes: two clamping plates, the two clamping plates are parallel to each other and perpendicular to the air expansion shaft, at least a portion of the clamping plates are arranged inside the U-shaped structure, the two clamping plates are spaced apart from each other and together with the plurality of rolling shafts define a paper roll placing space, the two clamping plates are arranged to be movable relative to each other along the extension direction of the air expansion shaft; at least one clamping plate mounting frame, the clamping plate mounting frame includes: two sliding rods, each of the sliding rods is perpendicularly connected to the two side portions and between the two side portions, the two sliding rods are parallel to each other and spaced apart from each other; and two connecting rods, the two connecting rods are parallel to each other, each of the connecting rods is fixed to a corresponding one of the clamping plates and is perpendicular to the sliding rod, and a plurality of connecting rods are provided at both ends of each of the connecting rods. A through hole is provided, each of the slide bars passes through the corresponding through hole on the two connecting bars so that the two ends of the connecting bars are sleeved on the slide bars; a vibrating electric cylinder, the vibrating electric cylinder is connected between the two connecting bars; and a deflection correction sensor, the deflection correction sensor includes a through slot for the pull-out portion to pass through, the deflection correction sensor is configured to sense the deflection of the pull-out portion and send a signal to the vibrating electric cylinder to drive the movement of the two clamping plates, wherein when the deflection correction sensor senses that the pull-out portion is not deflected, the two clamping plates remain spaced apart from the paper roll, and when the deflection correction sensor senses that the pull-out portion is deflected, the two clamping plates are driven by the vibrating electric cylinder to move toward the paper roll to push the deflected pull-out portion. Accordingly, the deflection correction of the paper roll can be achieved in a cost-effective manner.

[0005] Furthermore, the plane where the two slide bars are located is parallel to the base of the support frame. Accordingly, the overall structure can be made more balanced and stable.

[0006] Furthermore, the paper placing device comprises two clamping plate mounting frames, thereby enabling the clamping plate to be held more stably.

[0007] Further, at least a portion of the clamping plate has a shape that matches the cross-sectional shape of the U-shaped structure. Accordingly, the pulled-out portion of the paper roll can be pushed with a larger surface area to ensure the paper roll is straightened.

[0008] Furthermore, the deflection correction sensor is arranged on the base of the support frame, thereby enabling the deflection correction sensor to be easily installed.

[0009] Furthermore, each of the clamping plates includes a through hole for the driving shaft and the air expansion shaft to pass through. Accordingly, the pulled-out part of the paper roll can be pushed with a larger surface area to ensure the return of the paper roll.

[0010] Furthermore, the paper placing device further comprises: a tension sensor, which is arranged on one of the plurality of rolling shafts to sense the tension of the pulling-out portion; and a magnetic powder damper, which is connected to the second end of the driving shaft to selectively apply damping to the driving shaft based on the tension of the pulling-out portion sensed by the tension sensor. Accordingly, automatic paper roll tension balancing can be achieved in a cost-effective manner.

[0011] Furthermore, the paper placing device further comprises: a tension sensor, which is arranged on one of the plurality of rolling shafts to sense the tension of the pulling-out portion; and a magnetic powder damper, which is connected to the second end of the driving shaft to selectively apply damping to the driving shaft based on the tension of the pulling-out portion sensed by the tension sensor, wherein the magnetic powder damper is arranged outside the paper roll placing space. Accordingly, automatic paper roll tension balancing can be achieved in a cost-effective manner.

[0012] Furthermore, the paper placing device comprises nine rolling shafts, one of the nine rolling shafts is centrally arranged at the bottom of the U-shaped structure, and the remaining eight rolling shafts of the nine rolling shafts are arranged on both sides of the one rolling shaft in a mirror-symmetrical manner. Accordingly, the pulling-out part of the paper roll can be stably guided and the balance of the overall structure can be ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the accompanying drawings:

[0014] Figure 1 is a schematic three-dimensional diagram showing a paper placing device of the present application; and

[0015] Figure 2 It is a schematic side sectional view showing the driving shaft of the paper placing device of the present application and the related components installed thereon.

[0016] Reference numerals list

[0017] 100 Paper placing device

[0018] 1 Support frame

[0019] 11 Base

[0020] 12 Side

[0021] 2 Scroll Axis

[0022] 3. Splint

[0023] 4 Clamp mounting bracket

[0024] 41 Sliders

[0025] 42 Connecting rod

[0026] 5 Vibrating cylinder

[0027] 6. Web guiding sensor

[0028] 7 Tension sensor

[0029] 8 Magnetic Powder Damper

[0030] S Paper roll storage space

[0031] A1 Drive shaft

[0032] A1a First End

[0033] A1b Second end

[0034] A2 Air Shaft

[0035] R Paper Roll

[0036] R1 Paper tube

[0037] H Through slot DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present application to describe the technical solutions in the embodiments of the present application in detail. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict. The nouns and pronouns about people in this patent application are not limited to specific genders.

[0039] In the following detailed description, reference is made to the accompanying drawings that form a part of this specification, in which specific embodiments in which the present application can be implemented are shown by way of example. With respect to the accompanying drawings, directional terms such as "top", "bottom", "inside", "outside", "up", "down", "front", "back" and the like are used with reference to the directions of the accompanying drawings described. Since the components of the embodiments of the present application can be placed in many different directions, the directional terms are only used for illustration and are not intended to be limiting. It should be understood that other embodiments may be used and that structural or logical changes may be made without departing from the scope of the present application. Therefore, the following detailed description should not be understood as limiting, and the present application is defined by the appended claims.

[0040] refer to Figure 1 and Figure 2As shown, the present application proposes a paper unwinding device 100 for a paper roll. The paper roll R is wound with insulating paper, for example, and has a hollow portion in the center of the paper roll R to be sleeved on the air shaft A2. In particular, a cylindrical paper roll R1 may be provided inside the paper roll R. In other words, the paper roll R is wound on the paper roll R1 and the paper roll R1 is sleeved on the air shaft A2.

[0041] The paper placing device 100 may generally include a supporting frame 1 , a driving shaft A1 , an air expansion shaft A2 , and a plurality of rolling shafts 2 .

[0042] The support frame 1 may include a flat base 11 and two side portions 12 perpendicular to the base 11 and parallel to each other. The drive shaft A1 may extend perpendicular to the two side portions 12 and have a first end A1a and a second end A1b opposite to each other, and the first end A1a may be connected to one of the two side portions 12 to cooperate with a driving mechanism (e.g., a driving motor) provided in the side portion and can be driven to rotate by the driving mechanism. The air-expanding shaft A2 may be sleeved on the outside of the drive shaft A1 and fixed to the drive shaft A1, and the paper roll R is sleeved on the air-expanding shaft A2 and can be fixed to the air-expanding shaft A2 by the expansion of the air-expanding shaft A2. Each rolling shaft 2 can rotate around its own axis and is connected between the two side portions 12 perpendicularly to the two side portions 12. A plurality of rolling shafts 2 are arranged parallel to each other and spaced apart from each other to have a U-shaped structure to surround the paper roll R. The pulled-out portion of the paper roll R sequentially bypasses the plurality of rolling shafts 2 to be guided by the plurality of rolling shafts 2.

[0043] Accordingly, by providing a U-shaped structure formed by a plurality of rolling shafts 2, the placement of the pulled-out portion of the paper roll can be made more balanced and its guidance more stable. Moreover, the applicability of the paper placing device is very wide, for example, it can process paper rolls with a length of less than 1.6 m, a diameter of less than 1.2 m, and a weight of less than 500 kg. In addition, the paper placing device 100 of the present application has a simple structure and low cost.

[0044] In addition, the paper placing device may further include two clamping plates 3, at least one clamping plate mounting frame 4, a vibrating electric cylinder 5 and a deviation correction sensor 6, and these components together constitute a deviation correction mechanism.

[0045] The two clamping plates 3 are parallel to each other and perpendicular to the air expansion axis A2. At least a portion of the clamping plates 3 is arranged inside the U-shaped structure. The two clamping plates 3 are spaced apart from each other and define a paper roll placement space S together with the plurality of rolling shafts 2, and the paper roll can be located in the paper roll placement space S. The two clamping plates 3 can be arranged to be movable relative to each other along the extension direction of the air expansion axis A2.

[0046] At least one clamping plate mounting frame 4 can be, for example, two clamping plate mounting frames 4, such as Figure 1Schematically shown in . The clamping plate mounting frame 4 may include two sliding rods 41 and two connecting rods 42. Each sliding rod 41 is vertically connected to the two side portions 12 between the two side portions 12. The two sliding rods 4 are parallel to each other and spaced apart from each other. The two connecting rods 42 are parallel to each other. Each connecting rod 42 is fixed to a corresponding clamping plate 3 and is perpendicular to the sliding rod 41. Through holes are respectively provided at both ends of each connecting rod 42, and each sliding rod 41 can pass through the corresponding through holes on the two connecting rods 42 so that the two ends of the connecting rod 42 are sleeved on the sliding rod 41. In particular, the plane where the two sliding rods 41 are located can be parallel to the base 11 of the support frame 1.

[0047] The vibration electric cylinder 5 can be connected between the two connecting rods 42, thereby the vibration electric cylinder 5 can conveniently drive the movement of the two clamping plates 3. The deflection correction sensor 6 can include a through slot H for the pull-out portion to pass through, and the deflection correction sensor 6 is configured to sense the deviation of the pull-out portion and send a signal to the vibration electric cylinder 5 to drive the movement of the two clamping plates 3, wherein when the deflection correction sensor 6 senses that the pull-out portion has not deflected, the two clamping plates 3 remain spaced apart from the paper roll R, and when the deflection correction sensor 6 senses that the pull-out portion has deflected, the two clamping plates 3 are driven by the vibration electric cylinder 5 to move toward the paper roll R to push the deflected pull-out portion. In particular, the deflection correction sensor 6 can control the two clamping plates 3 to reciprocate multiple times to push the paper roll R multiple times, thereby effectively realizing the return of the paper roll R.

[0048] Based on this, the position of the paper roll can be adjusted in real time, the balance of the paper roll can be ensured, and the slitting smoothness can be improved.

[0049] In particular, at least a portion of the clamping plate 3 may have a shape that matches the cross-sectional shape of the U-shaped structure. It should be noted that the shape of the portion of the clamping plate 3 is not necessarily exactly the same as the cross-sectional shape of the U-shaped structure.

[0050] In particular, the deflection correction sensor 6 may be disposed on the base 11 of the support frame 1 .

[0051] In particular, each clamping plate 3 may include a through hole for the driving shaft A1 and the inflation shaft A2 to pass through.

[0052] In particular, the paper placing device 100 may further include a tension sensor 7 and a magnetic powder damper 8. The tension sensor 7 may be disposed on one of the plurality of rolling shafts 2 to sense the tension of the pulled-out portion. The magnetic powder damper 8 may be connected to the second end A1b of the driving shaft A1 to selectively apply damping to the driving shaft A1 based on the tension of the pulled-out portion sensed by the tension sensor 7, thereby adjusting the tension of the pulled-out portion.

[0053] Based on this, automatic paper roll tension balance can be achieved, which is more intelligent than traditional devices.

[0054] In particular, the magnetic powder damper 8 may be disposed outside the paper roll placement space S.

[0055] like Figure 1 and Figure 2 As shown, the paper placing device 100 may include nine rolling shafts 2. One of the nine rolling shafts 2 is centrally arranged at the bottom of the U-shaped structure, and the remaining eight rolling shafts 2 of the nine rolling shafts 2 are arranged mirror-symmetrically to each other on both sides of the rolling shaft 2 located at the bottom. Of course, the present application is not limited to this, and the paper placing device 100 may also include a greater or lesser number of rolling shafts 2.

[0056] In addition, the paper placing device 100 may further include a plurality of legs disposed at the bottom of the base 11 of the supporting frame 1 , so that the paper placing device 100 can be stably placed on the ground.

[0057] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A paper placing device for a paper roll, characterized in that: The paper placing device (100) comprises: A support frame (1), the support frame (1) comprising a flat base (11) and two side portions (12) perpendicular to the base (11) and parallel to each other; a drive shaft (A1), the drive shaft (A1) extending perpendicularly to the two side portions (12) and having a first end (A1a) and a second end (A1b) opposite to each other, the first end (A1a) being connected to one of the two side portions (12) to cooperate with a drive mechanism provided in the side portion and being rotatable by the drive mechanism; an air expansion shaft (A2), the air expansion shaft (A2) being sleeved on the outside of the driving shaft (A1) and fixed to the driving shaft (A1), the paper roll (R) being sleeved on the air expansion shaft (A2) and being fixed to the air expansion shaft (A2) by the expansion of the air expansion shaft (A2); and A plurality of rolling shafts (2), each of which can rotate around its own axis and is vertically connected to the two side parts (12) between the two side parts (12), the plurality of rolling shafts (2) are arranged in parallel and spaced apart from each other to have a U-shaped structure to surround the paper roll (R), and the pulled-out part of the paper roll (R) sequentially bypasses the plurality of rolling shafts (2) to be guided by the plurality of rolling shafts (2).

2. The paper placing device for paper rolls according to claim 1, characterized in that: The paper placing device (100) further comprises: Two clamping plates (3), the two clamping plates (3) are parallel to each other and perpendicular to the air expansion axis (A2), at least a portion of the clamping plates (3) is arranged inside the U-shaped structure, the two clamping plates (3) are spaced apart from each other and define a paper roll placement space (S) together with the plurality of rolling axes (2), and the two clamping plates (3) are arranged to be movable relative to each other along the extension direction of the air expansion axis (A2); At least one clamping plate mounting frame (4), the clamping plate mounting frame (4) comprising: two sliding bars (41), each of the sliding bars (41) being vertically connected to the two side portions (12) between the two side portions (12), the two sliding bars (41) being parallel to each other and spaced apart from each other; and Two connecting rods (42), the two connecting rods (42) are parallel to each other, each connecting rod (42) is fixed to a corresponding one of the clamping plates (3) and is perpendicular to the sliding rod (41), through holes are respectively provided at both ends of each connecting rod (42), and each sliding rod (41) passes through the corresponding through holes on the two connecting rods (42) so that the two ends of the connecting rod (42) are sleeved on the sliding rod (41); a vibrating electric cylinder (5), the vibrating electric cylinder (5) being connected between the two connecting rods (42); and A deflection correction sensor (6), the deflection correction sensor (6) comprising a through slot (H) for the pull-out portion to pass through, the deflection correction sensor (6) being configured to sense the displacement of the pull-out portion and to send a signal to the vibration electric cylinder (5) to drive the movement of the two clamping plates (3), wherein, when the deflection correction sensor (6) senses that the pull-out portion has not been deflected, the two clamping plates (3) remain spaced apart from the paper roll (R), and when the deflection correction sensor (6) senses that the pull-out portion has been deflected, the two clamping plates (3) are driven by the vibration electric cylinder (5) to move toward the paper roll (R) to push the deflected pull-out portion.

3. The paper placing device for paper rolls according to claim 2, characterized in that: The plane where the two sliding rods (41) are located is parallel to the base (11) of the supporting frame (1).

4. The paper placing device for paper rolls according to claim 2, characterized in that: The paper placing device (100) comprises two clamping plate mounting frames (4).

5. The paper placing device for paper rolls according to claim 2, characterized in that: The at least one portion of the clamping plate (3) has a shape matching the cross-sectional shape of the U-shaped structure.

6. The paper placing device for paper rolls according to claim 2, characterized in that: The deviation correction sensor (6) is arranged on the base (11) of the support frame (1).

7. The paper placing device for paper rolls according to claim 2, characterized in that: Each of the clamping plates (3) comprises a through hole for the driving shaft (A1) and the inflation shaft (A2) to pass through.

8. The paper placing device for paper rolls according to claim 1, characterized in that: The paper placing device (100) further comprises: a tension sensor (7), the tension sensor (7) being arranged on one of the plurality of rolling shafts (2) for sensing the tension of the pulled-out portion; and A magnetic powder damper (8) is connected to the second end (A1b) of the drive shaft (A1) for selectively applying damping to the drive shaft (A1) based on the tension of the pulled-out part sensed by the tension sensor (7).

9. The paper placing device for paper rolls according to claim 2, characterized in that: The paper placing device (100) further comprises: a tension sensor (7), the tension sensor (7) being arranged on one of the plurality of rolling shafts (2) for sensing the tension of the pulled-out portion; and a magnetic powder damper (8), the magnetic powder damper (8) being connected to the second end (A1b) of the drive shaft (A1) for selectively applying damping to the drive shaft (A1) based on the tension of the pulled-out portion sensed by the tension sensor (7), Wherein, the magnetic powder damper (8) is arranged outside the paper roll placement space (S).

10. The paper placing device for paper rolls according to claim 1, characterized in that: The paper placing device (100) comprises nine rolling shafts (2), one rolling shaft (2) among the nine rolling shafts (2) is centrally arranged at the bottom of the U-shaped structure, and the remaining eight rolling shafts (2) among the nine rolling shafts (2) are arranged on both sides of the one rolling shaft (2) in a mirror-symmetrical manner.