Lifting and supporting mechanism

By combining a sliding seat, a pallet, and an eccentric shaft, the pallet can be raised, lowered, and interlocked, solving the problem that existing lifting mechanisms cannot support heavy coils and reducing equipment costs.

CN223522228UActive Publication Date: 2025-11-07HAIMUXING LASER INTELLIGENT EQUIP (JIANGSU CO LTD
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Patent Information

Application Number
CN202422979893.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-04
Publication Date
2025-11-07
Estimated Expiration
2034-12-04

AI Technical Summary

Technical Problem

The existing V-shaped support mechanism is unable to support heavy coils, leading to increased equipment costs.

Method used

It adopts a combination structure of sliding seat, pallet, eccentric shaft and drive assembly. The drive assembly drives the eccentric shaft to rotate, so that the pallet slides along the slide groove to the highest position and interlock position, realizing the lifting and interlocking functions of the pallet, and bearing heavy material coils.

Benefits of technology

With its simple and compact structure, interlocking function, and easy control, it meets the requirements for bearing heavy material coils and reduces equipment costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a lifting and supporting mechanism, which relates to the field of winding and unwinding equipment and comprises a sliding seat, a lifting mechanism, a lifting mechanism and a lifting mechanism. The supporting plate is arranged in the sliding groove in a sliding mode and used for bearing a material roll, and a guide groove is formed in the supporting plate; the eccentric shaft comprises a driving shaft and a jacking shaft, the driving shaft and the jacking shaft are fixedly connected, the axes of the driving shaft and the jacking shaft are arranged in parallel, and the jacking shaft is movably arranged in the guide groove; the driving assembly is in driving connection with the driving shaft and drives the eccentric shaft to rotate, so that the supporting plate slides along the sliding groove and has the highest position and the interlocking position, in the highest position, the axes of the jacking shaft and the driving shaft are located in the same vertical plane, the driving shaft rotates to the interlocking position from the highest position in the rotating direction, and in the interlocking position, the eccentric shaft rotates to the interlocking position. The jacking shaft is located at one end of the guide groove. According to the technical scheme, the lifting and supporting mechanism can adapt to large-weight material coils, and is simple in structure and beneficial to cost design.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a take -up equipment technical field, especially in a kind of lifting support mechanism. BACKGROUND

[0002] When the take -up machine is fed or discharged, the roll material or the material cylinder is first positioned on the V-shaped support by manual forklift or AGV (unmanned transport trolley), at this time, the V-shaped support is in the jacking state, then the top cone chuck of the take -up machine is extended, the material cylinder is clamped, the V-shaped support is lowered, and the feeding process is realized. The discharge process is contrary, that is, after the roll stops rotating, the V-shaped support is jacked up, the top cone chuck of the take -up machine is retracted, and the weight of the roll is borne by the V-shaped support. Thereafter, the roll material or the material cylinder is removed by manual forklift or AGV. However, the lifting mechanism of the V-shaped support is not suitable for lifting heavy rolls, resulting in increased equipment cost. SUMMARY

[0003] The main purpose of the utility model is to provide a kind of lifting support mechanism, to solve the current roll material support structure cannot adapt to the lifting heavy roll, leading to the technical problem of cost increase.

[0004] To achieve the above-mentioned purpose, the lifting support mechanism provided by the utility model comprises:

[0005] The sliding seat is provided with a sliding groove.

[0006] The supporting plate is slidably arranged in the sliding groove and is used for carrying the roll, and the supporting plate is provided with a guide groove.

[0007] The eccentric shaft comprises a driving shaft and a jacking shaft, the driving shaft and the jacking shaft are fixedly connected and the axes of the two are arranged in parallel, and the jacking shaft is movably arranged in the guide groove.

[0008] The driving assembly is drivingly connected to the driving shaft and drives the eccentric shaft to rotate, so that the supporting plate slides along the sliding groove to have a highest position and a mutual locking position. In the highest position, the axes of the driving shaft and the jacking shaft are in the same vertical plane. The driving shaft rotates from the highest position to the mutual locking position in the rotation direction. In the mutual locking position, the jacking shaft is located at one end of the guide groove.

[0009] In an embodiment, in the mutual locking position, the driving shaft and the jacking shaft have a mutual locking distance in the horizontal direction, and the mutual locking distance is 2mm-3mm.

[0010] In an embodiment, the lifting support mechanism further comprises a support plate, the driving assembly and the sliding seat are arranged on two sides of the support plate respectively, the support plate is connected with a bearing, and the driving shaft is connected with the bearing.

[0011] In an embodiment, the eccentric shaft further comprises a fixed shaft, the driving shaft and the jacking shaft are fixedly connected to two sides of the fixed shaft respectively, the support plate, the sliding seat and the supporting plate form an avoiding space, and the fixed shaft is accommodated in the avoiding space.

[0012] In an embodiment, the supporting plate is provided with a limiting plate for limiting displacement of the material roll in the axial direction; and / or,

[0013] The supporting plate is further connected with a bearing pressing cover.

[0014] In an embodiment, the driving assembly comprises a driving cylinder and a rocker arm, one end of the rocker arm is connected with the driving shaft, and the driving cylinder is connected with the other end of the rocker arm and drives the rocker arm to rotate.

[0015] In an embodiment, the two side walls of the support plate are provided with first guide portions, the inner wall of the sliding groove is provided with second guide portions, and the first guide portions and the second guide portions slide in cooperation.

[0016] In an embodiment, the jacking and supporting mechanism further comprises a limiting and buffering assembly, which cooperates with the driving assembly to buffer the driving force of the driving assembly.

[0017] In an embodiment, the limiting and buffering assembly comprises a buffer and a buffering mounting seat, the buffer is connected with the buffering mounting seat, and the driving assembly contacts the buffer to compress the buffer.

[0018] In an embodiment, the jacking and supporting mechanism further comprises a protective cover, and the driving assembly is arranged in the protective cover.

[0019] The technical scheme of the utility model adopts the sliding groove arranged on the sliding seat, the driving assembly drives the eccentric shaft to rotate to make the support plate slide and lift along the sliding groove and slide to the highest position and the interlocking position. Specifically, the driving assembly drives the driving shaft to rotate, and then the jacking shaft rotates in the guide groove and slides along the guide groove. The axes of the driving shaft and the jacking shaft are parallel, that is, the axes of the two are not in the same straight line, the driving shaft rotates to make the jacking shaft rotate around the driving shaft as the rotation center to drive the support plate to slide up and down along the sliding groove to realize the lifting of the support plate. At the highest position, the axes of the jacking shaft and the driving shaft are in the same vertical plane, that is, the highest position is the highest position that the jacking shaft can drive the support plate to reach by rotating; the jacking shaft continues to rotate to reach the interlocking position, at this time, the jacking shaft is at one end of the guide groove to limit the jacking shaft from continuing to rotate, thereby realizing the interlocking function. The material roll is placed on the support plate, the jacking shaft cannot continue to rotate, and the support plate cannot slide downward, thereby being able to carry the material roll with large weight.

[0020] Compared with the prior structure, the lifting supporting mechanism has simple structure, high reliability, low cost and meets the functional requirements. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained according to the structures shown in the drawings without creative labor for those skilled in the art.

[0022] Figure 1 The present application provides a lifting supporting mechanism embodiment one angle structure schematic view;

[0023] Figure 2 The present application provides a lifting supporting mechanism embodiment another angle structure schematic view;

[0024] Figure 3 The present application provides a lifting supporting mechanism embodiment interlocking position structure schematic view;

[0025] Figure 4 The present application provides a lifting supporting mechanism embodiment sliding seat, the structure schematic view of the lifting plate and the eccentric shaft;

[0026] Figure 5 The present application provides a lifting supporting mechanism embodiment eccentric shaft structure schematic view;

[0027] Figure 6 The present application provides a lifting supporting mechanism embodiment lifting plate jacking process structure schematic view.

[0028] BRIEF DESCRIPTION OF DRAWINGS

[0029] 100, sliding seat; 110, sliding groove; 120, second guide part;

[0030] 200, lifting plate; 210, guide groove; 220, first guide part;

[0031] 300, eccentric shaft; 310, drive shaft; 320, jacking shaft; 330, fixed shaft;

[0032] 400, drive assembly; 410, drive cylinder; 420, rocker arm;

[0033] 500, support plate; 510, bearing; 520, bearing gland; 530, avoiding space; 540, limiting plate;

[0034] 600, limiting and buffering assembly; 610, buffer; 620, buffer mounting seat;

[0035] 700, protective cover;

[0036] 800, tobacco rod.

[0037] The purposes, functional features and advantages of the present application will be further described with reference to the accompanying drawings in conjunction with embodiments. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0039] It should be noted that if the present application embodiments involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0040] In addition, if the present application embodiments involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features with "first" and "second" can explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears throughout the text, it means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B simultaneously satisfy the scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the ordinary skilled in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection required by the present application.

[0041] In the prior art, during the feeding process, the V-shaped support is in the jacking state, and the material roll is placed on the V-shaped support; during the discharging process, after the material roll stops rotating, the V-shaped support is jacked, the top taper chuck of the winding and unwinding machine is retracted, and the weight of the material roll is borne by the V-shaped support. Currently, the jacking mechanism of the V-shaped support is not suitable for jacking a material roll with large weight, and the whole machine needs to be adjusted. In the existing jacking structure of the V-shaped support, if a cylinder is increased or multiple cylinders are used, the structure of the equipment is increased in size, thereby increasing the occupied space and increasing the cost of the equipment. Secondly, due to the limitation of the structure of the whole machine, the number of cylinders that can be connected in parallel is also limited, which is not conducive to the lightweight design of the equipment.

[0042] The utility model provides a jacking support mechanism.

[0043] Please refer to Figures 1 to 6 In an embodiment of the utility model, the jacking support mechanism comprises a sliding seat 100, a support plate 200, an eccentric shaft 300 and a driving assembly 400, wherein the sliding seat 100 is provided with a sliding groove 110; the support plate 200 is slidingly arranged in the sliding groove 110 and is used for bearing the material roll 800, and the support plate 200 is provided with a guide groove 210; the eccentric shaft 300 comprises a driving shaft 310 and a jacking shaft 320, the driving shaft 310 and the jacking shaft 320 are fixedly connected and the axes of the two are arranged in parallel, and the jacking shaft 320 is movably arranged in the guide groove 210; the driving assembly 400 is drivingly connected with the driving shaft 310 and drives the eccentric shaft 300 to rotate, so that the support plate 200 slides along the sliding groove 110 and has a highest position and a mutual locking position; at the highest position, the axes of the jacking shaft 320 and the driving shaft 310 are in the same vertical plane; the driving shaft 310 rotates from the highest position to the mutual locking position in the rotating direction; and at the mutual locking position, the jacking shaft 320 is located at one end of the guide groove 210.

[0044] In the embodiment, the support plate 200 slides and lifts in the sliding groove 110. In order to adapt to bearing the material roll 800, the support plate 200 is of V-shaped structure in the specific implementation process. It should be noted that when the support plate 200 bears other materials, the structure of the support plate 200 can be changed adaptively. The guide groove 210 penetrates the support plate 200, and the guide groove 210 is of strip type.

[0045] The axes of the driving shaft 310 and the jacking shaft 320 extend in the horizontal direction, and the two have a certain interval distance in the vertical direction. In this way, the rotation of the driving shaft 310 can make the jacking shaft 320 rotate around the axis of the driving shaft 310 as the center axis and rotate with the interval distance between the two axes as the radius. Further, the jacking shaft 320 is movably arranged in the guide groove 210. It can be understood that the jacking shaft 320 rotates in the guide groove 210 and slides along the guide groove 210, and the rotation of the jacking shaft 320 drives the support plate 200 to slide and lift along the sliding groove 110.

[0046] The driving assembly 400 is in driving connection with the driving shaft 310 to drive the driving shaft 310 to rotate, and the driving assembly 400 provides power for the rotation of the driving shaft 310, which can be a motor structure, a cylinder structure or other structure to drive the driving shaft 310 to rotate. Specifically, the driving assembly 400 drives the driving shaft 310 to rotate, and then the jacking shaft 320 rotates and drives the supporting plate 200 to jack up. When the supporting plate 200 jacks up to the highest position, it can be understood that the driving shaft 310 and the jacking shaft 320 are in the same vertical plane, that is, the jacking shaft 320 is located directly above the driving shaft 310. When the supporting plate 200 is in the highest position, the jacking shaft 320 continues to rotate, and the supporting plate 200 slightly descends and reaches the interlocking position. At this time, the jacking shaft 320 is located at one end of the guide groove 210, which limits the jacking shaft 320 from continuing to rotate. In this way, the supporting plate 200 can bear a certain load without the driving assembly 400 continuing to apply driving force, so as to adapt to the material roll 800 with large weight.

[0047] The technical scheme of the utility model discloses a sliding groove 110 is arranged on the sliding seat 100, and the driving assembly 400 drives the eccentric shaft 300 to rotate to make the supporting plate 200 slide up and down along the sliding groove 110 and slide to the highest position and the interlocking position. Specifically, the driving assembly 400 drives the driving shaft 310 to rotate, and then the jacking shaft 320 rotates in the guide groove 210 and slides along the guide groove 210. The axes of the driving shaft 310 and the jacking shaft 320 are parallel, that is, the axes of the two are not in the same straight line. The driving shaft 310 rotates to make the jacking shaft 320 rotate around the driving shaft 310 as the rotation center to drive the supporting plate 200 to slide up and down along the sliding groove 110 and realize the lifting of the supporting plate 200. In the highest position, the axes of the jacking shaft 320 and the driving shaft 310 are in the same vertical plane, that is, the highest position is the highest position that the jacking shaft 320 can drive the supporting plate 200 to reach. The jacking shaft 320 continues to rotate to reach the interlocking position. At this time, the jacking shaft 320 is located at one end of the guide groove 210 to limit the jacking shaft 320 from continuing to rotate, and the supporting plate 200 is also limited to descend, thereby realizing the interlocking function. In this way, the material roll 800 is placed on the supporting plate 200. Since the jacking shaft 320 cannot continue to rotate, the supporting plate 200 cannot slide downward, thereby being able to bear the material roll 800 with large weight.

[0048] In an embodiment, as shown in FIG. 1, Figure 4 Specifically, the first guide part 220 is configured as a groove, and the second guide part 120 is configured as a sliding rail and slides in the groove in cooperation. The sliding groove 110 and the sliding rail extend in the vertical direction and play a guiding role in the lifting of the supporting plate 200.

[0049] In an embodiment, in the interlocking position, both the driving shaft 310 and the lifting shaft 320 have an interlocking distance in the horizontal direction, and the interlocking distance is 2-3 mm.

[0050] In the specific implementation process, after the lifting shaft 320 reaches the highest position, the driving shaft 310 continues to drive the lifting shaft 320 to rotate. When the lifting shaft 320 rotates to one end of the guide groove 210 and cannot continue to rotate, at this time, the distance between the driving shaft 310 and the lifting shaft 320 in the horizontal direction is 2-3 mm, and the lifting shaft 320 is still in the lifting state, which meets the equipment loading requirements. After the roll material leaves the supporting plate 200, it can be understood that the driving assembly 400 applies a driving force in the opposite direction to drive the driving shaft 310 to rotate in the opposite direction, so that the lifting shaft 320 rotates in the opposite direction and reaches the lifting position from the interlocking position, and continues to rotate to drive the supporting plate 200 to descend.

[0051] In an embodiment, the lifting support mechanism further comprises a support plate 500, and the driving assembly 400 and the sliding seat 100 are respectively arranged on two sides of the support plate 500. The support plate 500 is connected with a bearing 510, and the driving shaft 310 is connected with the bearing 510.

[0052] It should be noted that the support plate 500 serves as the support of the entire lifting support mechanism, and provides a mounting position for support and installation. The driving assembly 400 and the sliding seat 100 are fixedly installed on the support plate 500 and located on opposite sides of the support plate 500. The driving shaft 310 of the eccentric shaft 300 penetrates through the support plate 500 and is rotatably connected with the support plate 500 through the bearing 510. In addition, the support plate 500 is further connected with a bearing pressing cover 520 to limit the displacement of the bearing 510 in the axial direction.

[0053] Further, as shown in Figure 5 The eccentric shaft 300 further comprises a fixed shaft 330, and the driving shaft 310 and the lifting shaft 320 are fixedly connected to two sides of the fixed shaft 330. The supporting plate 200, the sliding seat 100 and the support plate 500 form an avoiding space 530, and the fixed shaft 330 is accommodated in the avoiding space 530.

[0054] In the embodiment, the two ends of the fixed shaft 330 are connected with the driving shaft 310 and the lifting shaft 320, respectively, and the extension direction of the fixed shaft 330 is perpendicular to the extension directions of the driving shaft 310 and the lifting shaft 320. The fixed shaft 330 connects the driving shaft 310 and the lifting shaft 320, the driving shaft 310 drives the lifting shaft 320 to rotate through the fixed shaft 330, and the fixed shaft 330 rotates synchronously with the lifting shaft 320. The sliding seat 100 is fixedly connected to one side of the support plate 500, and the sliding seat 100 is provided with an avoiding opening to communicate the sliding groove 110 with the avoiding space 530 to avoid the fixed shaft 330.

[0055] In the implementation process, the sliding seat 100 is fixedly installed on one side of the support plate 500 through a pin or a screw, the two side walls of the supporting plate 200 are slidably connected with the sliding groove 110, and the side of the supporting plate 200 facing the support plate 500 is an avoiding space 530, and the fixed shaft 330 is movably arranged in the avoiding space 530.

[0056] In an embodiment, the support plate 500 is provided with a limiting plate 540, which is used to limit the displacement of the material roll 800 in the axial direction, and the top profile of the limiting plate 540 is V-shaped to avoid the material roll 800 from sliding along the axis.

[0057] In an embodiment, the driving assembly 400 includes a driving cylinder 410 and a rocker arm 420, one end of the rocker arm 420 is connected with the driving shaft 310, and the driving cylinder 410 is connected with the other end of the rocker arm 420 and drives the rocker arm 420 to rotate.

[0058] Specifically, the driving cylinder 410 is fixedly connected with a cylinder mounting seat, the cylinder mounting seat is fixed on the support plate 500, the telescopic rod of the driving cylinder 410 is rotatably connected with the rocker arm 420, and the rocker arm 420 is fixedly connected with the driving shaft 310, so that the telescopic rod of the driving cylinder 410 drives the rocker arm 420 to swing and drives the driving shaft 310 to rotate. Specifically, as shown in Figure 1 and Figure 3 Specifically, as shown in the figure, the telescopic rod is extended, the rocker arm 420 is driven to swing counterclockwise around the driving shaft 310 as the rotation center, the driving shaft 310 is counterclockwise rotated, and the supporting plate 200 is driven to rise to the highest position, and the driving shaft 310 continues to rotate, so that the supporting plate 200 slightly drops to the interlocking position.

[0059] It should be noted that the initial working state is that the driving cylinder 410 is retracted, at this time, the supporting plate 200 is at the initial bottom position, as shown in Figure 3As shown, in operation, the driving cylinder 410 extends to push the swing arm to swing, the swing arm drives the eccentric shaft 300 to rotate, the eccentric shaft 300 cooperates with the guide groove 210 to drive the lifting plate 200 to lift, and the lifting action is realized. After the lifting plate 200 passes the highest position by 2-3 mm, the eccentric shaft 300 reaches one end of the guide groove 210 and reaches the limit, at this time, the eccentric shaft 300 cannot continue to rotate, and the interlocking position is reached. It can be understood that at this time, even if the driving cylinder 410 does not act, the lifting plate 200 will not automatically descend, and the material roll 800 with large weight can be carried. The top taper chuck of the winding and unwinding machine extends to clamp the material roll 800, the driving cylinder 410 retracts, drives the swing arm to swing in the reverse direction, and drives the lifting plate 200 to descend through the rotation of the eccentric shaft 300. Since the reverse rotation of the eccentric shaft 300 is not limited, and at this time the lifting plate 200 does not need to carry the material roll, the driving cylinder 410 can completely drive the eccentric shaft 300 to rotate to make the lifting plate 200 descend, so that when the material roll 800 with large weight is adapted, the driving cylinder 410 does not need to be increased, and a large load driving cylinder 410 also does not need to be replaced. Wherein, the distance between the initial bottom position and the highest position is the lifting height H, as shown. Figure 6

[0060] In an embodiment, the lifting support mechanism further comprises a limiting and buffering assembly 600, which cooperates with the driving assembly 400 to buffer the driving force of the driving assembly 400.

[0061] The limiting and buffering assembly 600 is located on the side of the swing arm away from the driving cylinder 410, that is, when the driving cylinder 410 extends, it drives the swing arm to swing to contact the limiting and buffering assembly 600, which can realize the function of mechanical buffering and can also prevent the cylinder from being pushed too much to damage the lifting plate 200, thereby adding structural protection to the interlocking position.

[0062] Further, the limiting and buffering assembly 600 comprises a buffer 610 and a buffer mounting seat 620, the buffer 610 is connected with the buffer mounting seat 620, and the driving assembly 400 contacts the buffer 610 to compress the buffer 610.

[0063] It should be noted that the buffer 610 comprises a pin shaft and a spring, one end of the pin shaft is used to contact the swing arm, and the spring is used to buffer the pushing force applied to the pin shaft, thereby realizing the buffering effect. The buffer mounting seat 620 is fixedly installed on the support plate 500, and the buffer 610 is installed on the mounting seat.

[0064] In an embodiment, the lifting support mechanism further comprises a protective cover 700, and the driving assembly 400 is arranged in the protective cover 700. In the specific implementation process, the protective cover 700 is installed on one side of the support plate 500 and encloses a protective space, and the driving assembly 400 and the limiting and buffering assembly 600 are located in the protective space.​

[0065] The above merely illustrates the embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation, or direct / indirect application in other related technical fields under the inventive concept of the present application is included in the patent protection scope of the present application.

Claims

1. A lifting support mechanism, characterized by, The lifting support mechanism comprises: a sliding seat provided with a sliding groove; a supporting plate slidingly arranged in the sliding groove and used for carrying a roll, the supporting plate being provided with a guide groove; an eccentric shaft comprising a driving shaft and a lifting shaft, the driving shaft and the lifting shaft being fixedly connected and having parallel axes, the lifting shaft being movably arranged in the guide groove; and a driving assembly drivingly connected with the driving shaft and driving the eccentric shaft to rotate, so that the supporting plate slides along the sliding groove to have a highest position and a mutual locking position, in the highest position, the axes of the driving shaft and the lifting shaft are in the same vertical plane, the driving shaft rotates from the highest position to the mutual locking position in a rotating direction, in the mutual locking position, the lifting shaft is located at one end of the guide groove. In the mutual locking position, the driving shaft and the lifting shaft have a mutual locking distance in the horizontal direction, the mutual locking distance being 2-3 mm.

2. The lift support mechanism of claim 1, wherein, The lifting support mechanism further comprises a support plate, the driving assembly and the sliding seat being arranged on two sides of the support plate respectively, the support plate being connected with a bearing, and the driving shaft being connected with the bearing.

3. The lift support mechanism of claim 1, wherein, The eccentric shaft further comprises a fixed shaft, the driving shaft and the lifting shaft being fixedly connected on two sides of the fixed shaft respectively, the supporting plate, the sliding seat and the support plate forming an avoiding space, and the fixed shaft being accommodated in the avoiding space.

4. The lift support mechanism of claim 3, wherein, The support plate is provided with a limiting plate used for limiting displacement of the roll in the axial direction; and / or 5. The lift support mechanism of claim 3, wherein, The support plate is further connected with a bearing pressing cover. The driving assembly comprises a driving cylinder and a rocker arm, one end of the rocker arm being connected with the driving shaft, the driving cylinder being connected with the other end of the rocker arm and driving the rocker arm to rotate.

6. The lift support mechanism of claim 1 wherein, Two side walls of the supporting plate are provided with first guide portions, an inner wall of the sliding groove is provided with second guide portions, and the first guide portions and the second guide portions slide in cooperation.

7. The lift support mechanism of claim 1 wherein, The lifting support mechanism further comprises a limiting and buffering assembly cooperating with the driving assembly to buffer driving force of the driving assembly.

8. The lift support mechanism of claim 1 wherein, The limiting and buffering assembly comprises a buffer and a buffering mounting seat, the buffer being connected with the buffering mounting seat, and the driving assembly being in contact with the buffer to compress the buffer.

9. The lift support mechanism of claim 8, wherein, The lifting support mechanism further comprises a protective cover, and the driving assembly is arranged in the protective cover.

10. The lift support mechanism of claim 1 wherein, ​