Flexible adjustment tension superposition mechanism

Abstract

The utility model relates to a flexible adjustment tension superposition mechanism which comprises a first tension generation part and a second tension generation part. The first tension generating part comprises a first input part and a first output part; the second tension generating part comprises a second input part and a second output part; the first input part and the second input part are connected to the same power source; the first output part and the second output part are connected to the same output end; and the tension generated by the second tension generation part is adjustable. According to the flexible adjustment tension superposition mechanism, the second tension generation part is superposed on the basis of a traditional magnetic control slip frequency mechanism (the first tension generation part), so that torques generated by the second tension generation part and the traditional magnetic control slip frequency mechanism are superposed, the effect of improving the overall torque upper limit of the mechanism is achieved, the tension of the second tension generation part is adjustable, and the flexibility is high. The device has the advantages of being wide in application range, capable of generating large tension, saving mechanism construction cost and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to a torque adjusting structure, especially a flexible tension superposition mechanism. BACKGROUND

[0002] The winding film material needs stable tension, and the required tension is different for different materials. For example, compared with PET film, the winding tension of metal foil is obviously larger. For the prior art magnetic control slip mechanism, the upper limit of tension cannot meet the requirements, or the Foucault current generated by the large speed difference can cause overheating of the mechanism. SUMMARY

[0003] In view of the above situation, it is necessary to provide a flexible tension superposition mechanism for solving at least one of the above problems.

[0004] A flexible tension superposition mechanism comprises:

[0005] A first tension generating part and a second tension generating part;

[0006] The first tension generating part comprises a first input part and a first output part;

[0007] The second tension generating part comprises a second input part and a second output part;

[0008] The first input part and the second input part are connected to the same power source;

[0009] The first output part and the second output part are connected to the same output end;

[0010] The tension generated by the second tension generating part is adjustable.

[0011] As a further scheme of the utility model, the first tension generating part and the second tension generating part are axially superposed.

[0012] As a further scheme of the utility model, the first tension generating part is a magnetic control slip mechanism depending on Foucault current, comprising a conductor ring and a magnet ring; the second tension generating part is a magnetic hysteresis tension control mechanism, comprising an inner magnetic ring, an outer magnetic ring and a magnetic conductive disc;

[0013] There is an air gap between the conductor ring and the magnet ring;

[0014] There is an air gap between the inner magnetic ring, the outer magnetic ring and the magnetic conductive disc;

[0015] The inner magnetic ring and the outer magnetic ring are arranged on the coaxial two sides of the magnetic conductive disc, and the inner magnetic ring and the outer magnetic ring move together, and the outer magnetic ring and the inner magnetic ring can provide relative indexing rotation along their own axes.

[0016] As a further scheme of the utility model: the conductor ring, the inner magnetic ring and the outer magnetic ring are coaxial and rotate together.

[0017] All of them are connected with the main shaft.

[0018] As a further scheme of the utility model: the outer magnetic ring further comprises an outer magnetic ring indexing mechanism and a plurality of permanent magnets, the plurality of permanent magnets are divided into a plurality of groups and are evenly arranged on the outer magnetic ring indexing mechanism in the form of a circumferential array.

[0019] As a further scheme of the utility model: the magnet ring and the magnetic conductive disc are coaxial and rotate together.

[0020] The flexible tension superposition mechanism adopts a traditional magnetic control slip mechanism (a first tension generating part) depending on Foucault current, superposes a second tension generating part, makes the torque generated by the two parts superimposed, realizes the effect of improving the upper limit of the overall torque of the lifting mechanism, and the tension of the second tension generating part can be adjusted through radial indexing, and has the advantages of simple structure, wide application range and large tension. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structure schematic view of the utility model embodiment;

[0022] Figure 2 It is a sectional view of the utility model embodiment;

[0023] Figure 3 It is a structure schematic view of the inner and outer magnetic rings of the utility model embodiment. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below by combining with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0025] In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more than two;The orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and is not indicative or suggestive of the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore can not be understood as limiting the utility model.In addition, the terms "first", "second", "third" and the like are only for the purpose of description and can not be understood as indicative or suggestive of relative importance.

[0026] In the description of the utility model, it is necessary to point out that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected;It can be mechanically connected, or it can be electrically connected;It can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements.The above-mentioned terms in the utility model can be understood by the person skilled in the art according to the specific circumstances.

[0027] A flexible tension superposition mechanism, including a magnetic control slip mechanism as a first tension generating part and a magnetic hysteresis tension control mechanism as a second tension generating part, the torque generated by the two is superimposed, used to improve the torque upper limit of the whole mechanism, it can be understood that the magnetic hysteresis tension control mechanism can provide a basic and fixed torque, superimposed on the magnetic control slip mechanism based on the speed difference principle, thereby improving the torque upper limit of the whole mechanism, that is, improving the upper limit of the winding tension, that is, the torque upper limit of the whole mechanism.And due to the benefit of no physical friction, the controllability of the whole mechanism is high, and the stability is good.

[0028] Embodiment one of the utility model, as Figures 1-2 Shown, the magnetic control slip mechanism includes the conductor ring 1 as the first input part and the magnet ring 2 as the first output part;The magnetic hysteresis tension control mechanism includes the inner magnetic ring 3 and the outer magnetic ring 4 as the second input part, and the magnetic conductive disc 5 as the second output part;The first input part and the second input part are simultaneously connected to the main shaft 6, and can be driven to rotate by the main shaft 6;When the first output part and the second output part are relative to the first input part and the second input part, the torque is generated.The first output part and the second output part are directly connected or indirectly connected, so that the two parts rotate synchronously, and therefore the torque generated by the two is superimposed.

[0029] Further, as Figures 1-2As shown in the figure, the conductor ring 1, the inner magnetic ring 3 and the outer magnetic ring 4 are directly fixed on the main shaft 6; the magnet ring 2 is arranged on the main shaft 6 through the bearing 7, the outer rotating ring 8 is arranged on the magnet ring 2, the magnetic conductive disc 5 is arranged on the outer rotating ring 8, and the outer rotating ring 8 is a power output component of the tension superposition mechanism.

[0030] As shown in the figure, Figures 1-3 As shown in the figure, the outer magnetic ring 4 comprises a magnetic ring indexing mechanism 41 and permanent magnets 42; the magnetic ring indexing mechanism 41 can be understood as a support of the permanent magnets 42, and the permanent magnets 42 are arranged on the magnetic ring indexing mechanism 41 according to the circumferential division. In the embodiment, four divisions are taken as an example, the permanent magnets 42 are divided into four groups, and can be of any shape and size as long as the geometric shapes are consistent, each group occupies 90 degrees, and the magnetic poles of each permanent magnet 42 are arranged alternately in a single group. Correspondingly, the permanent magnets on the inner magnetic ring 3 are symmetrically equal to the outer magnetic ring 4. Within the range of 90 degrees, the magnetic ring indexing mechanism 41 is adjusted by rotation, and the magnetic pole indexing offset of the inner magnetic ring 3 is generated, so that the torque adjustment of the hysteresis tension control mechanism can be realized, that is, the hysteresis force of the magnetic conductive disc 5 is changed. After the adjustment is completed, the magnetic ring indexing mechanism 41 is fixed with the main shaft 6. In theory, since the second tension generating part generates tension based on the hysteresis phenomenon, the more the divisions, that is, the more the groups of permanent magnets 42, the smaller the hysteresis phenomenon brings about the drift, and the better the smoothness during operation.

[0031] As the second embodiment of the utility model, the positions of the conductor ring 1 and the magnet ring 2 can be interchanged, that is, the conductor ring 1 is taken as the first output part, and the magnet ring 2 is taken as the first input part.

[0032] As the third embodiment of the utility model, the fixed positions of the inner magnetic ring 3, the outer magnetic ring 4 and the magnetic conductive disc 5 are interchanged, that is, the inner magnetic ring 3 and the outer magnetic ring 4 are fixed on the outer rotating ring 8 as the second output part, and the magnetic conductive disc 5 is fixed on the main shaft as the second input part.

[0033] It is easy to understand that the second embodiment and the third embodiment can also be combined, as long as the form of torque superposition of the two parts is met, and the fixed form and locking structure of the parts should belong to the change of the conventional structure, so it is not described here.

[0034] The above merely describes preferred embodiments of the present application and is not intended to limit the present application in any form. Although the present application has been disclosed with preferred embodiments, it is not intended to limit the present application. Any skilled person in the art can make minor changes or modifications to the disclosed technical content without departing from the technical solution of the present application, and any simple modification, equivalent change and modification of the above embodiments based on the technical essence of the present application still belong to the scope of the technical solution of the present application.

Claims

1. A flexible tension stacker mechanism, characterized by: The application relates to a tensioner comprising: a first tension generator and a second tension generator; the first tension generator comprises a first input and a first output; the second tension generator comprises a second input and a second output; the first input and the second input are connected to the same power source; the first output and the second output are connected to the same output end; the tension generated by the second tension generator is adjustable.

2. The flexible tension overlay mechanism of claim 1, wherein: the first tension generator and the second tension generator are axially superposed.

3. The flexible tension overlay mechanism of claim 1, wherein: the first tension generator is a magnetic control slip mechanism comprising a conductor ring (1) and a magnet ring (2); the second tension generator is a magnetic hysteresis tension control mechanism comprising an inner magnetic ring (3), an outer magnetic ring (4) and a magnetic conductive disc (5); there is an air gap between the conductor ring (1) and the magnet ring (2); there is an air gap between the inner magnetic ring (3), the outer magnetic ring (4) and the magnetic conductive disc (5); the inner magnetic ring (3) and the outer magnetic ring (4) are arranged on the coaxial two sides of the magnetic conductive disc (5), and the inner magnetic ring (3) and the outer magnetic ring (4) move together; the outer magnetic ring (4) and the inner magnetic ring (3) can relatively rotate along their own axes.

4. The flexible tension overlay mechanism of claim 3, wherein: the conductor ring (1), the inner magnetic ring (3) and the outer magnetic ring (4) are coaxial and rotate together; all of them are connected with a main shaft (6).

5. A flexible tension overlay mechanism as claimed in claim 3 or 4, wherein: the outer magnetic ring (4) further comprises an outer magnetic ring indexing mechanism (41) and a plurality of permanent magnets (42); the plurality of permanent magnets (42) are divided into a plurality of groups and are uniformly arranged on the outer magnetic ring indexing mechanism (41) in the form of a circumferential array.

6. The flexible tension overlay mechanism of claim 3, wherein: the magnet ring (2) and the magnetic conductive disc (5) are coaxial and rotate together.

7. The flexible tension overlay mechanism of claim 5, wherein: the magnetic pole directions of the permanent magnets (42) in a single group are alternately distributed in S / N on the outer magnetic ring indexing mechanism (41).

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