Aluminum-magnesium wire intermittent traction mechanism for tea bag packaging machine

文档序号:1281610 发布日期:2020-08-28 浏览:16次 中文

阅读说明:本技术 一种袋泡茶包装机用铝镁丝间歇牵引机构 (Aluminum-magnesium wire intermittent traction mechanism for tea bag packaging machine ) 是由 唐学雷 刘红弟 张建辉 郑景润 韩东阳 张广远 丁山山 张友贵 杨越 杨永亮 许 于 2020-04-03 设计创作,主要内容包括:本发明公开了一种袋泡茶包装机用铝镁丝间歇牵引机构,所述牵引机构包括导丝块I、导丝块II、盘轴、拨杆以及压轮,其中,拨杆设于与箱体固定连接的固定轴上,固定轴的一侧平行设有驱动轴,驱动轴在凸轮机构的作用下能够做间歇上下运动,导丝块I、盘轴、压轮以及导丝块II均设于驱动轴上且能够随驱动轴一同间歇上下运动;在驱动轴的作用下盘轴与拨杆间歇接触进而实现盘轴的间歇转动,盘轴转动带动压轮旋转进而使盘轴与压轮相互配合传送铝镁丝,在盘轴和压轮的作用下,铝镁丝依次经过导丝块I、盘轴与压轮的咬合区域、导丝块II后进入下一道工序。该间歇牵引机构结构紧凑、易于调整、安装方便,能够很好的适用于结构精密的袋泡茶包装机。(The invention discloses an aluminum-magnesium wire intermittent traction mechanism for a tea bag packaging machine, which comprises a wire guide block I, a wire guide block II, a disc shaft, a driving lever and a pressing wheel, wherein the driving lever is arranged on a fixed shaft fixedly connected with a box body; under the effect of drive shaft dish axle and driving lever intermittent type contact and then realize the intermittent type of dish axle and rotate, the dish axle rotates and drives the pinch roller rotation and then make dish axle and pinch roller mutually support the conveying aluminium magnesium silk, under the effect of dish axle and pinch roller, the aluminium magnesium silk gets into next process after leading wire piece I, the interlock region of dish axle and pinch roller, seal wire piece II in proper order. The intermittent traction mechanism has the advantages of compact structure, easy adjustment and convenient installation, and can be well suitable for a teabag packaging machine with precise structure.)

1. The utility model provides a tea bag packagine machine is with aluminium magnesium silk intermittent type drive mechanism which characterized in that: the traction mechanism comprises a wire guide block I (13), a wire guide block II (6), a disc shaft (5), a shifting lever (22) and a pressing wheel (8), wherein the shifting lever (22) is arranged on a fixed shaft (14) fixedly connected with the box body, a driving shaft (1) is arranged on one side of the fixed shaft (14) in parallel, the driving shaft (1) can intermittently move up and down under the action of a cam mechanism, and the wire guide block I (13), the disc shaft (5), the pressing wheel (8) and the wire guide block II (6) are all arranged on the driving shaft (1) and can intermittently move up and down along with the driving shaft (1); under the effect of drive shaft (1), dish axle (5) and driving lever (22) intermittent type contact and then realize the intermittent type of dish axle (5) and rotate, can drive during dish axle (5) rotate pinch roller (8) and then make dish axle (5) and pinch roller (8) the transmission aluminium magnesium silk of mutually supporting, under the effect of dish axle (5) and pinch roller (8), the aluminium magnesium silk passes through wire guide block I (13) in proper order, the interlock region of dish axle (5) and pinch roller (8), get into next process behind wire guide block II (6).

2. The aluminum-magnesium wire intermittent traction mechanism for the tea bag packaging machine according to claim 1, characterized in that: drive shaft (1) top is equipped with supporting shoe (7), can dismantle on the side of supporting shoe (7) orientation fixed axle (14) and be connected with L type link (19), the horizontal tip of L type link (19) is equipped with U type backup pad (4) that the opening faces upward, be connected with a back shaft I (18) on two parallel vertical portions of U type backup pad (4), back shaft I (18) middle part is connected with dish axle (5) through the bearing rotation, be equipped with the ratchet groove on dish axle (5), driving lever (22) and ratchet groove cooperation can make dish axle (5) rotate.

3. The aluminum-magnesium wire intermittent traction mechanism for the tea bag packaging machine according to claim 2, characterized in that: at least one side of the U-shaped supporting plate (4) is provided with a threaded sleeve (3) with the extending direction consistent with the extending direction of the supporting shaft I (18), one end, close to the disc shaft (5), in the threaded sleeve (3) is provided with a pressing block (15) and a compression spring I (16) connected with the pressing block (15), one end, far away from the pressing block (15), of the compression spring I (16) is connected with a stud (2) in threaded fit with the threaded sleeve (3), the stud (2) is connected with a nut I (17) in a threaded mode, and the length of the stud (2) screwed into the threaded sleeve (3) is increased to enable the pressing block (15) to press the disc shaft (5) separated from the driving lever (22) under the effect of the compression spring I (16) to stop rotating.

4. The aluminum-magnesium wire intermittent traction mechanism for the tea bag packaging machine according to claim 2, characterized in that: u type backup pad (4) are kept away from and can be dismantled on the side of supporting shoe (7) and be connected with wire guide block I (13), wire guide block I (13) are the linear type and its extending direction is unanimous with the extending direction of U type backup pad (4), are equipped with two guide wire grooves I on wire guide block I (13), and guide wire groove I's cross-section is vertical linear shape.

5. The aluminum-magnesium wire intermittent traction mechanism for the tea bag packaging machine according to claim 4, characterized in that: a U-shaped connecting frame (10) is vertically arranged on one side, away from the U-shaped supporting plate (4), of the wire guide block I (13), the opening of the U-shaped connecting frame (10) faces one side, away from the wire guide block I (13), the opening end of the U-shaped connecting frame (10) is hinged to the movable plate (9) through a connecting shaft (11), a supporting shaft II (20) is detachably connected to the upper portion of the movable plate (9), and two ends of the supporting shaft II (20) are rotatably connected with pressing wheels (8) capable of being matched with the disc shaft (5) to convey aluminum-magnesium wires; the bottom of the U-shaped connecting frame (10) is provided with a connecting plate (12) which extends downwards along the direction parallel to the fixed shaft (14), a compression spring II (21) is connected between the lower part of the movable plate (9) and the connecting plate (12), and the movable plate (9) can rotate around the connecting shaft (11) by pressing the lower part of the movable plate (9) so as to drive the pressing wheel (8) to be far away from the disc shaft (5).

6. The aluminum-magnesium wire intermittent traction mechanism for the tea bag packaging machine according to claim 5, characterized in that: supporting shoe (7) upper portion is equipped with wire guide block II (6), wire guide block II (6) extend to the top of dish axle (5) and pinch roller (8) interlock region through dish axle (5) top, be equipped with two curved wire guide groove II that are that correspond with wire guide groove I on wire guide block II (6), dish axle (5) and corresponding pinch roller (8) mutually support in order will be conveyed to corresponding wire guide groove II by the almag silk of wire guide groove I feeding.

7. The aluminum-magnesium wire intermittent traction mechanism for the tea bag packaging machine according to claim 1, characterized in that: fixed axle (14) top is equipped with recess I, driving lever (22) lower part that is located recess I is equipped with the recess II relative with recess I, be equipped with compression spring III (25) between recess I and the recess II, with driving lever (22) in proper order through bolt (24), compression spring III (25) and fixed axle (14) wear to establish together, the terminal threaded connection of bolt (24) has nut III (26), one side that compression spring III (25) were kept away from in driving lever (22) is equipped with nut II (23) with bolt (24) threaded connection, through adjusting nut II (23) can adjust the pretightning force of compression spring III (25) and then adjust the reset rate of driving lever (22) for the position of bolt (24).

8. The aluminum-magnesium wire intermittent traction mechanism for the tea bag packaging machine according to claim 1, characterized in that: the movable plate (9) is composed of two rectangular plate with obtuse angle.

9. The aluminum-magnesium wire intermittent traction mechanism for the tea bag packaging machine according to claim 1, characterized in that: the surface of the pressing wheel (8) is knurled to increase the friction force.

Technical Field

The invention relates to the field of tea bag packaging machines, in particular to an aluminum-magnesium wire intermittent traction mechanism for a tea bag packaging machine.

Background

The main working principle of the equipment for nailing cotton threads on the inner bag by using aluminum nails for the inner bag of the existing tea bag packaging machine at home and abroad at present is that aluminum magnesium wires are intermittently and intermittently drawn under the control of a servo motor, and the aluminum nails of the inner bag are formed by subsequent cutting and forming.

Therefore, for a precision machine with a compact structure, an intermittent traction mechanism suitable for a tea bag packaging machine with a compact structure is urgently needed to improve the production efficiency and reduce the cost.

Disclosure of Invention

In view of the above, the present invention provides an aluminum-magnesium wire intermittent traction mechanism for a tea bag packaging machine, which has a compact structure, is easy to adjust, and is convenient to install.

The technical scheme adopted by the invention to solve the technical problems is as follows:

an aluminum-magnesium wire intermittent traction mechanism for a tea bag packaging machine comprises a wire guide block I, a wire guide block II, a disc shaft, a deflector rod and a pressing wheel, wherein the deflector rod is arranged on a fixed shaft fixedly connected with a box body, a driving shaft is arranged on one side of the fixed shaft in parallel, the driving shaft can perform intermittent up-and-down motion under the action of a cam mechanism, and the wire guide block I, the disc shaft, the pressing wheel and the wire guide block II are all arranged on the driving shaft and can perform intermittent up-and-down motion along with the driving shaft; under the effect of drive shaft dish axle and driving lever intermittent type contact and then realize the intermittent type of dish axle and rotate, can drive the pinch roller rotation and then make dish axle and pinch roller mutually support the conveying aluminium magnesium silk when the dish axle rotates, under the effect of dish axle and pinch roller, the aluminium magnesium silk gets into next process after the interlock region of wire guide block I, dish axle and pinch roller, wire guide block II in proper order.

Further, the drive shaft top is equipped with the supporting shoe, can dismantle on the supporting shoe towards the side of fixed axle and be connected with L type link, and the horizontal tip of L type link is equipped with opening U type backup pad up, is connected with a back shaft I on two parallel vertical portions of U type backup pad, and back shaft I middle part is connected with the dish axle through the bearing rotation, is equipped with the ratchet groove on the dish axle, and the driving lever can make the dish axle rotate with the cooperation of ratchet groove.

Furthermore, at least one side of the U-shaped supporting plate is provided with a threaded sleeve, the extending direction of the threaded sleeve is consistent with that of the supporting shaft I, one end, close to the disc shaft, in the threaded sleeve is provided with a pressing block and a compression spring I connected with the pressing block, one end, far away from the pressing block, of the compression spring I is connected with a stud matched with the thread in the threaded sleeve, the stud is connected with a nut I in a threaded mode, and the pressing block can press the disc shaft, which is separated from the shifting rod, under the effect of the compression spring I through increasing the length of the stud screwed into the threaded.

Furthermore, the U-shaped supporting plate is far away from the side face of the supporting block and is detachably connected with a wire guide block I, the wire guide block I is linear, the extending direction of the wire guide block I is consistent with the extending direction of the U-shaped supporting plate, two wire guide grooves I are formed in the wire guide block I, and the cross section of each wire guide groove I is vertical.

Furthermore, a U-shaped connecting frame is vertically arranged on one side, away from the U-shaped supporting plate, of the wire guide block I, the opening of the U-shaped connecting frame faces one side, away from the wire guide block I, the opening end of the U-shaped connecting frame is hinged with a movable plate through a connecting shaft, the upper portion of the movable plate is detachably connected with a supporting shaft II, and two ends of the supporting shaft II are rotatably connected with pressing wheels capable of being matched with the disc shaft to convey aluminum magnesium wires; the bottom of U type link is equipped with a connecting plate along being on a parallel with fixed axle direction downwardly extending, is connected with compression spring II between fly leaf lower part and the connecting plate, can make the fly leaf rotate around the connecting axle and then drive the pinch roller and keep away from the dish axle through pressing the fly leaf lower part.

Furthermore, the upper portion of the supporting block is provided with a wire guide block II, the wire guide block II extends to the upper portion of the meshing area of the disc shaft and the pressing wheel through the upper portion of the disc shaft, two arc-shaped wire guide grooves II corresponding to the wire guide grooves I are formed in the wire guide block II, and the disc shaft and the corresponding pressing wheel are matched with each other to convey the aluminum-magnesium wires fed from the wire guide grooves I to the corresponding wire guide grooves II.

Further, the fixed axle top is equipped with recess I, the driving lever lower part that is located recess I is equipped with the recess II relative with recess I, be equipped with compression spring III between recess I and the recess II, wear to establish the driving lever through the bolt in proper order, compression spring III and fixed axle together, the terminal threaded connection of bolt has nut III, one side that compression spring III was kept away from to the driving lever is equipped with nut II with bolt threaded connection, can adjust compression spring III's pretightning force and then adjust the reset rate of driving lever for the position of bolt through adjusting nut II.

Further, the movable plate is composed of two rectangular parallelepiped plates forming an obtuse angle.

Further, the puck surface is knurled to increase friction.

Has the advantages that:

as mentioned above, the aluminum-magnesium wire intermittent traction mechanism for the tea bag packaging machine of the invention has the following beneficial effects:

1. in the invention, a wire guide block I, a disc shaft, a pressing wheel and a wire guide block II are all arranged on a driving shaft which can do intermittent up-and-down motion under the action of a cam mechanism, a driving lever which is matched with the disc shaft to enable the disc shaft to rotate is arranged on a fixed shaft fixed on a box body, the disc shaft rotates to drive the pressing wheel to rotate so as to enable the disc shaft and the pressing wheel to mutually match and convey aluminum magnesium wires, in the intermittent up-and-down motion process of the driving shaft, the disc shaft and the driving lever are intermittently contacted to realize the intermittent rotation of the disc shaft so as to enable the disc shaft and the pressing wheel to match and intermittently convey the aluminum magnesium wires, and under the action of the disc shaft and the pressing wheel, the aluminum magnesium wires sequentially pass through an occlusion area of the wire guide. The cam mechanism controls the action of the driving shaft, the structure is simplified, the occupied space is small, the cost is saved, the speed of the whole machine can be matched, the same production efficiency is achieved, meanwhile, the working continuity is guaranteed, and the product percent of pass is improved.

2. The pressing wheel, the yarn guide grooves I in the yarn guide block I and the yarn guide grooves II in the yarn guide block II are respectively provided with 2 yarn guide grooves corresponding to each other, so that 2 aluminum magnesium yarns can be simultaneously conveyed, and the double-bag tea bag packaging machine can be further applied.

3. According to the invention, the threaded sleeve, the pressing block, the compression spring I and the stud are arranged on at least one side of the disc shaft, and the pressing block, the compression spring I and the stud are positioned in the threaded sleeve.

4. According to the invention, the pressing wheel is arranged at the upper part of the movable plate, the compression spring II is connected between the lower part of the movable plate and the connecting plate, and when the aluminum magnesium wire is required to be inserted into the wire guide block I and the wire guide block II at first, the lower part of the movable plate can be pressed to enable the movable plate to rotate around the connecting shaft so as to drive the pressing wheel to be far away from the disc shaft, so that the aluminum magnesium wire can be conveniently.

5. According to the invention, the nut II, the deflector rod, the compression spring III, the fixed shaft and the nut II are sequentially arranged on the bolt from the nut in a penetrating manner, the nut II can be screwed or unscrewed to adjust the pretightening force of the compression spring III so as to adjust the reset speed of the deflector rod, and the adjustment is simple and convenient.

6. The intermittent traction mechanism has the advantages of simple structure, lower cost and convenient installation, and can be well suitable for a tea bag packaging machine with precise structure (such as a double-bag tea bag packaging machine).

The present invention will be described in further detail with reference to the drawings and specific examples.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic view of the construction of the traction mechanism of the present invention;

FIG. 2 is a right side view of FIG. 1;

FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;

FIG. 4 is a right side view of the stationary shaft 14 and the toggle lever 22 of FIG. 1;

fig. 5 is a cross-sectional view at C-C in fig. 4.

The device comprises graphic marks, 1, a driving shaft, 2, a stud, 3, a thread sleeve, 4, a U-shaped supporting plate, 5, a disc shaft, 6, thread guide blocks II, 7, a supporting block, 8, a pressing wheel, 9, a movable plate, 10, a U-shaped connecting frame, 11, a connecting shaft, 12, a connecting plate, 13, thread guide blocks I, 14, a fixing shaft, 15, a pressing block, 16, compression springs I, 17, nuts I, 18, a supporting shaft I, 19, an L-shaped connecting frame, 20, supporting shafts II, 21, compression springs II, 22, a deflector rod, 23, nuts II, 24, bolts, 25, compression springs III, 26 and nuts III.

Detailed Description

In the description of the present invention, it is to be understood that the terms "upper", "lower", and the like, indicate orientations or positional relationships based on those shown in fig. 1, are only used for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be taken as limiting the scope of the present invention.

The present invention will be described in further detail with reference to the drawings and the detailed description.

The core of the invention is to provide an aluminum-magnesium wire intermittent traction mechanism for a tea bag packaging machine, please refer to fig. 1-5, the traction mechanism mainly comprises a wire guide block I13, a wire guide block II6, a disc shaft 5, a shift lever 22 and a press wheel 8 in structure, wherein the shift lever 22 is arranged on a fixed shaft 14 fixedly connected with a box body, the fixed shaft 14 is fixed and does not change in position, a driving shaft 1 is arranged in parallel on one side of the fixed shaft 14, the driving shaft 1 can intermittently move up and down under the action of a cam mechanism, and the wire guide block I13, the disc shaft 5, the press wheel 8 and the wire guide block II6 are all arranged on the driving shaft 1 and can move together with the driving shaft 1; under the effect of drive shaft 1, dish axle 5 and driving lever 22 intermittent type contact and then realize the intermittent type of dish axle 5 and rotate, and dish axle 5 rotates and drives the pinch roller 8 rotatory and then make dish axle 5 and pinch roller 8 mutually support the conveying aluminium magnesium silk, and under the effect of dish axle 5 and pinch roller 8, the aluminium magnesium silk gets into next process behind wire guide block I13, the interlock region of dish axle 5 and pinch roller 8, wire guide block II6 in proper order.

Drive shaft 1 top is equipped with supporting shoe 7, supporting shoe 7 can dismantle on the side of fixed axle 14 and be connected with L type link 19, the horizontal tip of L type link 19 is equipped with U type backup pad 4 that the opening is up, be connected with a back shaft I18 on two parallel vertical portions of U type backup pad 4, back shaft I18 middle part is rotated and is connected with dish axle 5, be equipped with the ratchet groove on the dish axle 5, driving lever 22 can make dish axle 5 rotate with the cooperation of ratchet groove, the ratchet groove in the dish axle 5 breaks away from with driving lever 22 when drive shaft 1 rises. U type backup pad 4 keeps away from and can dismantle on the side of supporting shoe 7 and be connected with wire guide block I13, wire guide block I13 is the linear type and its extending direction is unanimous with U type backup pad 4's extending direction, is equipped with two guide wire grooves I on the wire guide block I13, and guide wire groove I's cross-section is vertical straight line shape. A U-shaped connecting frame 10 is vertically arranged on one side, away from the U-shaped supporting plate 4, of the wire guide block I13, the opening of the U-shaped connecting frame 10 faces one side, away from the wire guide block I13, the opening end of the U-shaped connecting frame 10 is hinged with a movable plate 9 through a connecting shaft 11, the upper portion of the movable plate 9 is detachably connected with a supporting shaft II 20, and two ends of the supporting shaft II 20 are rotatably connected with pressing wheels 8 capable of being matched with the disc shaft 5 to convey aluminum magnesium wires; the bottom of U type link 10 is equipped with one along being on a parallel with fixed axle 14 direction downwardly extending's connecting plate 12, is connected with compression spring II 21 between fly leaf 9 lower part and the connecting plate 12, can make fly leaf 9 rotate and then drive pinch roller 8 and keep away from the dish axle 5 around connecting axle 11 through pressing fly leaf 9 lower part, and the aluminium magnesium silk that will need through drive mechanism is worn to locate in wire guide block II6 through wire guide block I13 to the convenience. The upper portion of the supporting block 7 is provided with a yarn guide block II6, the yarn guide block II6 extends to the upper portion of the occlusion area of the disc shaft 5 and the pinch roller 8 through the upper portion of the disc shaft 5, the yarn guide block II6 is provided with two arc-shaped yarn guide grooves II corresponding to the yarn guide grooves I, and the disc shaft 5 and the corresponding pinch roller 8 are mutually matched to convey the aluminum-magnesium yarns fed by the yarn guide grooves I into the corresponding yarn guide grooves II.

Preferably, referring to fig. 2, a screw sleeve 3 with an extending direction consistent with that of the support shaft I18 is arranged on the U-shaped support plate 4, a pressing block 15 and a compression spring I16 connected with the pressing block 15 are arranged at one end of the screw sleeve 3 close to the disc shaft 5, a stud 2 in threaded fit with the screw sleeve 3 is connected to one end of the compression spring I16 far away from the pressing block 15, a nut I17 is connected to the stud 2 in a threaded manner, the nut I17 is loosened, the length of the stud 2 screwed into the screw sleeve 3 is increased, the elastic force of the compression spring I16 can be adjusted and transmitted to the pressing block 15, so that the pressing block 15 presses the disc shaft 5, and when the disc shaft 5 is not shifted by the shift lever 22, the rotation can.

Please refer to fig. 5, a groove I is disposed at the top of the fixed shaft 14, a groove II opposite to the groove I is disposed at the lower portion of the shift lever 22 located in the groove I, a compression spring III 25 is disposed between the groove I and the groove II, the shift lever 22, the compression spring III 25 and the fixed shaft 14 are sequentially inserted through a bolt 24, a nut III 26 is connected to the end of the bolt 24 through a thread, a nut II23 connected to the bolt 24 through a thread is disposed at one side of the shift lever 22 away from the compression spring III 25, and the position of the nut II23 relative to the bolt 24 can be adjusted to adjust the pre-tightening force of the compression spring III 25 and further adjust the reset speed of the shift lever 22.

In detail, referring to fig. 1, the movable plate 9 is formed by two rectangular parallelepiped plates at an obtuse angle.

Wherein the surface of the pressing wheel 8 is knurled to increase the friction force.

In detail, when the driving shaft 1 moves up and down intermittently, the wire guide block I13, the disc shaft 5, the pressing wheel 8 and the wire guide block II6 are driven to move up and down, the ratchet groove in the disc shaft 5 is contacted with the pressing wheel 22 when the driving shaft descends, the pressing wheel 8 is driven to rotate by the driving of the driving wheel 22, so that the aluminum magnesium wire between the disc shaft 5 and the pressing wheel 8 is pulled and conveyed upwards in the rotating action process, when the traction mechanism reaches a lower limit position, the pressing wheel 22 is just clamped in the ratchet groove on the inner side of the disc shaft 5 to rotate the disc shaft 5, the disc shaft 5 drives the pressing wheel 8 to rotate so that the disc shaft 5 and the pressing wheel 8 are mutually matched to convey the aluminum magnesium wire, under the action of the disc shaft 5 and the pressing wheel 8, the aluminum magnesium wire sequentially passes through the wire guide block I13, the meshing area of the disc shaft 5 and the pressing wheel 8 and the wire guide block II6 and then enters the next process, when the traction mechanism moves upwards again, the disc, the pressing block 15 is pressed against the disc shaft 5 by rotating the stud 24 to stop rotating, the traction action is stopped, and the intermittent reciprocating action is carried out in such a way, so that the intermittent traction of the aluminum-magnesium wire is completed.

The aluminum-magnesium wire intermittent drawing mechanism for the tea bag packaging machine provided by the invention is described in detail, and the principle and the specific implementation mode of the invention are explained by applying specific examples, and the examples are only used for helping to understand the method and the core idea of the invention. It should be noted that any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are within the protective scope of the present invention to those skilled in the art.

12页详细技术资料下载
上一篇:一种医用注射器针头装配设备
下一篇:一种电缆卷绕放线装置

网友询问留言

已有0条留言

还没有人留言评论。精彩留言会获得点赞!

精彩留言,会给你点赞!