CN116099716B

CN116099716B - Back plate backlight inclined surface dispensing machine

Info

Publication number: CN116099716B
Application number: CN202310380907.4A
Authority: CN
Inventors: 鞠君; 黄亚鸣; 蒋峥艳
Original assignee: JINGJIANG YONGSHENG OPTOELECTRONICS TECHNOLOGY CO LTD
Current assignee: JINGJIANG YONGSHENG OPTOELECTRONICS TECHNOLOGY CO LTD
Priority date: 2023-04-11
Filing date: 2023-04-11
Publication date: 2023-06-27
Anticipated expiration: 2043-04-11
Also published as: CN116099716A

Abstract

The invention discloses a back plate backlight inclined surface glue dispenser, which relates to the technical field of back plate production and comprises a mounting frame, an inclined frame, a glue dispensing pipe, an inclined part, an adjusting part, a fixing part and a releasing part, wherein the inclined frame is rotatably arranged on the mounting frame through the inclined part, the adjusting part is arranged on the inclined frame, the glue dispensing pipe is arranged at the bottom of the adjusting part, the releasing part is arranged on the mounting frame and is used for releasing the fixing state of the fixing part.

Description

Back plate backlight inclined surface dispensing machine

Technical Field

The invention relates to the technical field of backboard production, in particular to a backboard backlight inclined surface dispensing machine.

Background

When the backboard is assembled, the backlight lamp needs to be arranged on the backboard, and the backlight lamp can be arranged only by coating glue on the backboard. At present, the point gum machine that is used for backplate to carry out the point gum in market can only carry out the point gum to the backplate of a size, just also need prepare the point gum machine of multiple different specifications, leads to the cost to improve, simultaneously, because the angle that the backplate placed can be inconsistent, then need adjust according to the angle of backplate point rubber tube position, current point gum machine can only an angle, the different angles of inadaptation, consequently, need one kind can be according to backplate angle point rubber tube regulation to backplate backlight inclined plane point gum machine after the TV production of backplate of adaptable equidimension.

The invention discloses a bevel dispenser for a back plate backlight lamp after television production, which relates to the field of television production. The technical problem is how to design a back plate backlight inclined surface glue dispenser which can adjust a glue dispensing tube according to the angle of a back plate and is suitable for the back plates with different sizes. A back plate backlight inclined surface dispenser for television production comprises a mounting frame, a mounting plate, universal balls, guide rods, sliding blocks and the like; the left portion rigid coupling in the upper portion outside of mounting bracket has the mounting panel, and mounting panel right flank lower part rotation is equipped with the universal ball, is connected with the guide bar on the universal ball, and the sliding block that is equipped with on the guide bar. According to the invention, the device is arranged on the conveyor belt of the backboard, when the backboard moves to the lower part of the glue dispensing pipe, the driving motor is started to enable the glue dispensing pipe to be in contact with the backboard to glue the glue dispensing pipe, so that the device can adapt to the backboard placed at different angles, and the servo motor is started again to enable the glue dispensing pipe to move left and right, so that the backboard is comprehensively glued.

However, the above device has a problem that the dispensing operation is unstable: according to the device, the glue dispensing pipe is inclined to be matched with the backboard through the inclination mechanism, but the angle of the glue dispensing pipe is not fixed after the inclination device works, so that the glue dispensing pipe is unstable when the glue dispensing operation is carried out, and the glue dispensing effect is easily affected.

Disclosure of Invention

The invention aims to provide a back plate backlight lamp inclined surface dispensing machine, which is used for solving the technical problem of unstable dispensing operation in the prior art.

The invention provides a back plate backlight inclined surface glue dispenser which comprises a mounting frame, an inclined frame, a glue dispensing pipe, an inclined part, an adjusting part, a fixing part and a releasing part, wherein the inclined frame is rotatably arranged on the mounting frame through the inclined part, the adjusting part is arranged on the inclined frame, the glue dispensing pipe is arranged at the bottom of the adjusting part, the fixing part comprises a sealing bin, a contact rod, a sucker, a first piston, a piston rod and a reset spring, the sealing bin is fixedly arranged on the inclined frame, the contact rod is slidingly arranged in the sealing bin, one end of the sucker is arranged on the sealing bin, the other end of the sucker is communicated with the sucker, the first piston is arranged in the sucker, the first piston is fixedly connected with the contact rod through the piston rod, the reset spring is sleeved on the piston rod, and the releasing part is arranged on the mounting frame and is used for releasing the fixed state of the fixing part.

Further, the end of the abutting rod, which is far away from the sealing bin, is provided with a ball.

Further, the tilting component includes dwang, tilting motor, worm and ring gear, the dwang rotates and sets up on the mounting bracket, and dwang and tilting frame fixed connection, and the ring gear sets up on the dwang, and the worm rotates and sets up on the mounting bracket, and worm and ring gear meshing, tilting motor is fixed to be set up on the mounting bracket and tilting motor's main shaft and worm fixed connection.

Further, the adjusting part includes slider, regulating part, adjusting rack, adjusting gear, accommodate motor, mounting panel, screw rod and knob, the slider slides and sets up on the sloping frame, and adjusting gear rotates and sets up on the slider, and accommodate motor's main shaft and adjusting gear fixed connection, adjusting rack set up on the sloping frame and adjust rack and adjusting gear meshing, and the regulating part is fixed to be set up in the slider bottom, and the screw rod rotates and sets up on the regulating part, and the one end fixed connection of knob and screw rod, and the mounting panel slides and sets up on the regulating part and mounting panel and screw rod pass through screw-thread fit connection, and the point rubber tube sets up in the mounting panel bottom.

Further, the release part comprises a second piston, a connecting rod, an inflation bin, an air inlet one-way valve, an air outlet one-way valve and an air inlet hose, wherein the inflation bin is fixedly arranged on the mounting frame, the second piston is arranged in the air outlet bin, the connecting rod is fixedly connected with the second piston, the air inlet one-way valve and the air outlet one-way valve are all communicated and arranged on the inflation bin, one end of the air inlet hose is connected with the inflation bin through the air outlet one-way valve, and the other end of the air inlet hose is communicated with the sealing bin.

Further, the release part still includes extension rod, swivel becket, ratchet, pawl and branch, and extension rod's one end and worm fixed connection, extension rod's the other end and ratchet fixed connection, and the swivel becket rotates and sets up on the mounting bracket, and the pawl rotates and sets up in the swivel becket, and is equipped with the restriction piece on the pawl, still be equipped with in the swivel becket with restriction piece complex gag lever post, still be equipped with the extension spring between gag lever post and the restriction piece, and the one end and the swivel becket rotation of branch are connected, and the other end and the connecting rod of branch rotate and are connected.

Further, the toothed ring rotates and sets up on the dwang, and slides on the dwang and be equipped with a plurality of restriction toothed ring pivoted plug-in components, and is equipped with compression spring between plug-in components and the dwang, also be equipped with on the toothed ring inside with plug-in components complex slot.

Compared with the prior art, the invention has the beneficial effects that:

firstly, this device is under the different inclination that can adapt to the backplate carries out the prerequisite that glues to it, has fixed the slope frame after the slope for the operation is more stable to the point is glued, has guaranteed the point and has glued the effect, and through with remove the cooperation of part, can not influence the going on to the operation is glued to the point of next backplate, and the practicality is stronger.

Secondly, the friction force between the abutting rod and the backboard can be reduced through the arrangement of the balls, and the backboard is prevented from being damaged by abutting the abutting rod.

Thirdly, this device is through the setting of canceling member, can make the tilting motor reverse the time along with moving canceling member work, and the reposition of tilting frame and canceling member simultaneous working for this device's use is more convenient, and has avoided the reposition of tilting frame to suffer the hindrance of fixed part after the point gum operation is ended, not only influences the point gum processing to next backplate, and easily causes the device to damage.

Fourth, this device is when tilting motor work but remove the fixed effect of part not removing fixed part yet, can tilting motor can drive the worm rotatory and drive the ring gear rotatory, this moment because the dwang still can't rotate, consequently, the pressure through the ring gear extrudees the plug-in components in the dwang to the dwang inside, in order to realize the ring gear rotatory and do not drive the dwang rotatory, after tilting motor reversal work a period, remove the part and have accomplished the dismantlement work this moment, the dwang can rotate this moment, when the ring gear rotated to slot and plug-in components correspond, the plug-in components pop out through the spring force and insert in the slot, and drive the dwang rotatory again through the ring gear, realize the reset to the tilting frame, the condition emergence of the work mutual interference of tilting frame has been avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic perspective view of the tilting member of the present invention;

FIG. 3 is a fragmentary view showing the internal construction of the tilting member of the present invention;

FIG. 4 is a cross-sectional view of an adjustment member of the present invention;

FIG. 5 is a perspective cross-sectional view of a stationary part of the present invention;

FIG. 6 is a schematic perspective view of a release member of the present invention;

fig. 7 is an enlarged view at a in fig. 6.

Reference numerals:

1. a mounting frame; 2. an inclined frame; 3. dispensing a rubber tube; 4. a tilting member; 41. a rotating lever; 42. a tilting motor; 43. a worm; 44. a toothed ring; 45. an insert; 46. a pressure spring; 47. a slot; 5. an adjusting member; 51. a slider; 52. an adjusting member; 53. adjusting the rack; 54. an adjusting gear; 55. adjusting a motor; 56. a mounting plate; 57. a screw; 58. a knob; 6. a fixing member; 61. sealing the bin; 62. a touch-up rod; 63. a suction cup; 64. a suction pipe; 65. a first piston; 66. a piston rod; 67. a return spring; 68. a ball; 7. a release member; 71. a second piston; 72. a connecting rod; 73. an inflation bin; 74. an air inlet one-way valve; 75. an air outlet one-way valve; 76. an air intake hose; 77. an extension rod; 78. a rotating ring; 79. a ratchet wheel; 710. a pawl; 711. a support rod; 712. a limit rod; 713. the block is restricted.

Detailed Description

The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown.

The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Referring now to fig. 1 to 7, the embodiment of the invention provides a back plate backlight oblique surface dispensing machine, which comprises a mounting frame 1, an oblique frame 2, a dispensing tube 3, an oblique component 4, an adjusting component 5, a fixing component 6 and a removing component 7, wherein the oblique frame 2 is rotatably arranged on the mounting frame 1 through the oblique component 4, the adjusting component 5 is arranged on the oblique frame 2, the dispensing tube 3 is arranged at the bottom of the adjusting component 5, the fixing component 6 comprises a seal bin 61, an abutting rod 62, a sucker 63, a suction tube 64, a first piston 65, a piston rod 66 and a reset spring 67, the seal bin 61 is fixedly arranged on the oblique frame 2, the abutting rod 62 is slidably arranged in the seal bin 61, one end of the suction tube 64 is arranged on the seal bin 61, the other end of the suction tube 64 is communicated with the sucker 63, the first piston 65 is arranged in the suction tube 64, the first piston 65 is fixedly connected with the abutting rod 62 through a piston rod 66, the reset spring 67 is sleeved on the piston rod 66, the removing component 7 is arranged on the mounting frame 1 and is used for removing the fixed state of the fixing component 6, when the back plate is to be treated, the back plate is conveyed to the oblique frame 2 through a conveying belt, the back plate 2 through the conveying device, the sucker 63 is driven by the oblique frame 2 through the abutting rod 63, the sucker 63 is continuously contacted with the piston rod 63, and the piston rod 63 is continuously moved through the piston rod 63 when the piston rod is contacted with the piston rod 67, and the piston rod 3 when the back plate 2 is continuously moved through the oblique frame 2, the sucker rod is contacted with the sucker rod 63, and the piston rod 63 is contacted with the sucker rod 63, and the piston rod 3, the piston rod is continuously moves through the sucker rod 63, and the sucker rod 3 is continuously is contacted with the sucker rod 3, and moved by the sucker rod 3, and is contacted with the sucker rod 3, and is continuously is contacted with the sucker rod 3 and moved by the rod 3 and is contacted by the rod and is contacted by the sucker rod and by the sucker rod 3 and is 3, after dispensing, the suction fixing of the suction disc 63 is released through the release part 7, and then the tilting frame 2 is reset through the tilting part 4 in a reverse rotation mode; the device is fixed the inclined frame 2 after the inclination under the premise that the device can adapt to different inclination of backplate and carry out the point gum, so that the point gum operation is more stable, the point gum effect is ensured, and the device is matched with the release component 7, so that the operation of the point gum of the next backplate is not influenced, and the practicability is stronger.

Preferably, the end of the abutting rod 62 far away from the sealing bin 61 is provided with a ball 68, and friction force between the abutting rod 62 and the backboard can be reduced through the arrangement of the ball 68, so that the backboard is prevented from being damaged due to the abutting of the abutting rod 62.

Preferably, the tilting member 4 includes a rotating rod 41, a tilting motor 42, a worm 43 and a toothed ring 44, the rotating rod 41 is rotatably disposed on the mounting frame 1, the rotating rod 41 is fixedly connected with the tilting frame 2, the toothed ring 44 is disposed on the rotating rod 41, the worm 43 is rotatably disposed on the mounting frame 1, the worm 43 is meshed with the toothed ring 44, the tilting motor 42 is fixedly disposed on the mounting frame 1, a main shaft of the tilting motor 42 is fixedly connected with the worm 43, when the tilting motor 42 works, the worm 43 is driven to rotate, the toothed ring 44 meshed with the worm 43 is driven to rotate, and finally the rotating rod 41 and the tilting frame 2 are driven to rotate.

Preferably, the adjusting component 5 includes a sliding part 51, an adjusting part 52, an adjusting rack 53, an adjusting gear 54, an adjusting motor 55, a mounting plate 56, a screw 57 and a knob 58, the sliding part 51 is slidably disposed on the tilting frame 2, the adjusting gear 54 is rotatably disposed on the sliding part 51, the adjusting motor 55 is fixedly disposed on the sliding part 51, a main shaft of the adjusting motor 55 is fixedly connected with the adjusting gear 54, the adjusting rack 53 is disposed on the tilting frame 2, the adjusting rack 53 is meshed with the adjusting gear 54, the adjusting part 52 is fixedly disposed at the bottom of the sliding part 51, the screw 57 is rotatably disposed on the adjusting part 52, the knob 58 is fixedly connected with one end of the screw 57, the mounting plate 56 is slidably disposed on the adjusting part 52, the mounting plate 56 is connected with the screw 57 through threads, the spot rubber tube 3 is disposed at the bottom of the mounting plate 56, the adjusting gear 54 is driven to rotate through the operation of the adjusting motor 55, the sliding part 51 is driven to move on the tilting frame 2 through the meshing of the adjusting gear 54 and the adjusting rack 53, the screw 57 is driven to rotate through the rotating knob 58, the mounting plate 56 is driven to move on the adjusting part 52, so as to adjust the movement of the mounting plate 56 and the mounting plate to adapt to the mounting plate to the size of the mounting plate with different specifications.

Preferably, the release member 7 includes a second piston 71, a connecting rod 72, an inflating bin 73, an air inlet check valve 74, an air outlet check valve 75 and an air inlet hose 76, the inflating bin 73 is fixedly arranged on the mounting frame 1, the second piston 71 is arranged in the air outlet bin, the connecting rod 72 is fixedly connected with the second piston 71, the air inlet check valve 74 and the air outlet check valve 75 are both communicated and arranged on the inflating bin 73, one end of the air inlet hose 76 is connected with the inflating bin 73 through the air outlet check valve 75, the other end of the air inlet hose 76 is communicated with the sealing bin 61, when the connecting rod 72 drives the second piston 71 to move in the inflating bin 73, air is fed into the inflating bin 73 through the air inlet check valve 74, the air is discharged through the air outlet check valve 75, the air is conveyed into the sealing bin 61 through the air inlet hose 76, the air pressure in the sealing bin 61 gradually increases along with the air inlet, the air pressure drives the abutting rod 62 and the piston rod 66 and the first piston 65 to move and reset along with the reset of the first piston 65, the air pressure between the sucking disc 63 and the back plate is increased until the negative pressure between the sucking disc 63 and the back plate is relieved, the back plate 6 is inclined, and the influence of the back plate on the back plate 2 is avoided.

Preferably, the release member 7 further comprises an extension rod 77, a rotating ring 78, a ratchet 79, a pawl 710 and a supporting rod 711, one end of the extension rod 77 is fixedly connected with the worm 43, the other end of the extension rod 77 is fixedly connected with the ratchet 79, the rotating ring 78 is rotationally arranged on the mounting frame 1, the pawl 710 is rotationally arranged in the rotating ring 78, a limiting block 713 is arranged on the pawl 710, a limiting rod 712 matched with the limiting block 713 is further arranged in the rotating ring 78, a tension spring is further arranged between the limiting rod 712 and the limiting block 713, one end of the supporting rod 711 is eccentrically and rotationally connected with the rotating ring 78, the other end of the supporting rod 711 is rotationally connected with the connecting rod 72, when the tilting motor 42 positively rotates to drive the tilting frame 2 to adapt to the tilting angle of the backboard, the rotating ring 78 is not driven by the extension rod 77 to rotate through the pawl 710, when the tilting motor 42 reversely rotates to drive the tilting frame 2 after the dispensing operation is finished, the ratchet 79 is clamped, the pawl 710 drives the connecting rod 72 and the second piston 71 to reciprocate through the supporting rod 713, the tilting frame 7 can be easily blocked by the setting up, and the tilting frame 7 can be easily damaged by the device after the tilting frame 2 is released from the operation, and the device is more convenient to the operation of the device is prevented from being damaged.

Preferably, the toothed ring 44 is rotatably disposed on the rotating rod 41, a plurality of inserts 45 for limiting the rotation of the toothed ring 44 are slidably disposed on the rotating rod 41, a pressure spring 46 is disposed between the inserts 45 and the rotating rod 41, and slots 47 matched with the inserts 45 are also disposed in the toothed ring 44, because the reset and release members 7 of the tilting frame 2 are controlled by the tilting motor 42, when the tilting motor 42 is reversed, the release members 7 do not release the fixing effect of the fixing members 6, so that the worm 43 and the toothed ring 44 are easy to be blocked, and by the arrangement, when the tilting motor 42 is operated, but the release members 7 do not release the fixing effect of the fixing members 6, the tilting motor 42 can drive the worm 43 to rotate and drive the toothed ring 44 to rotate, at this moment, and the inserts 45 in the rotating rod 41 are pressed into the rotating rod 41 by the pressure of the rotating rod 41, so that the rotating rod 44 is rotated and the rotating rod 41 is not driven by the pressure of the rotating rod 44, and when the tilting motor 42 is reversed, the tilting motor 42 is released from the tilting member 7 is completely, the tilting member 41 is released by the tilting member 45, and the tilting member is prevented from being pushed out of the corresponding to the slots 45, and the rotating rod 45 is prevented from being pushed out by the corresponding to the slots 45, and the rotating rod 45 is prevented from being mutually interfered by the rotating members 45.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims

1. The utility model provides a backplate backlight inclined plane point gum machine, includes mounting bracket (1), inclination (2) and some rubber tube (3), its characterized in that: still include tilting member (4), adjusting part (5), fixed part (6) and dismantlement part (7), tilting frame (2) rotate through tilting member (4) and set up on mounting bracket (1), adjusting part (5) set up on tilting frame (2), and some rubber tube (3) set up in adjusting part (5) bottom, fixed part (6) including sealed storehouse (61), conflict pole (62), sucking disc (63), straw (64), first piston (65), piston rod (66) and reset spring (67), sealed storehouse (61) are fixed to be set up on tilting frame (2), conflict pole (62) slide and set up in sealed storehouse (61), the one end of straw (64) sets up on sealed storehouse (61), the other end and sucking disc (63) intercommunication of straw (64), first piston (65) set up in straw (64), and first piston (65) are through piston rod (66) and conflict pole (62) fixed connection, reset spring (67) cover is established on sealed storehouse (66), dismantles part (7) and set up on mounting bracket (1) and be used for removing fixed state (6).

2. The backlight of claim 1, wherein: one end of the abutting rod (62) far away from the sealing bin (61) is provided with a ball (68).

3. The backlight of claim 1, wherein: the tilting component (4) comprises a rotating rod (41), a tilting motor (42), a worm (43) and a toothed ring (44), wherein the rotating rod (41) is rotationally arranged on the mounting frame (1), the rotating rod (41) is fixedly connected with the tilting frame (2), the toothed ring (44) is arranged on the rotating rod (41), the worm (43) is rotationally arranged on the mounting frame (1), the worm (43) is meshed with the toothed ring (44), and the tilting motor (42) is fixedly arranged on the mounting frame (1) and is fixedly connected with the worm (43).

4. The backlight of claim 1, wherein: the adjusting part (5) comprises a sliding part (51), an adjusting part (52), an adjusting rack (53), an adjusting gear (54), an adjusting motor (55), a mounting plate (56), a screw (57) and a knob (58), wherein the sliding part (51) is arranged on the inclined frame (2) in a sliding mode, the adjusting gear (54) is arranged on the sliding part (51) in a rotating mode, a main shaft of the adjusting motor (55) is fixedly arranged on the sliding part (51) and fixedly connected with the adjusting gear (54), the adjusting rack (53) is arranged on the inclined frame (2) and meshed with the adjusting gear (54), the adjusting part (52) is fixedly arranged at the bottom of the sliding part (51), the screw (57) is arranged on the adjusting part (52) in a rotating mode, the knob (58) is fixedly connected with one end of the screw (57), the mounting plate (56) is arranged on the adjusting part (52) in a sliding mode, the mounting plate (56) is connected with the screw (57) in a threaded mode, and the point (3) is arranged at the bottom of the mounting plate (56).

5. The backlight of claim 2, wherein: the release component (7) comprises a second piston (71), a connecting rod (72), an inflating bin (73), an air inlet one-way valve (74), an air outlet one-way valve (75) and an air inlet hose (76), wherein the inflating bin (73) is fixedly arranged on the mounting frame (1), the second piston (71) is arranged in the inflating bin (73), the connecting rod (72) is fixedly connected with the second piston (71), the air inlet one-way valve (74) and the air outlet one-way valve (75) are all communicated and arranged on the inflating bin (73), one end of the air inlet hose (76) is connected with the inflating bin (73) through the air outlet one-way valve (75), and the other end of the air inlet hose (76) is communicated with the sealing bin (61).

6. The backlight of claim 5, wherein: the release part (7) further comprises an extension rod (77), a rotating ring (78), a ratchet wheel (79), a pawl (710) and a supporting rod (711), one end of the extension rod (77) is fixedly connected with the worm (43), the other end of the extension rod (77) is fixedly connected with the ratchet wheel (79), the rotating ring (78) is rotationally arranged on the mounting frame (1), the pawl (710) is rotationally arranged in the rotating ring (78), a limiting block (713) is arranged on the pawl (710), a limiting rod (712) matched with the limiting block (713) is further arranged in the rotating ring (78), a tension spring is further arranged between the limiting rod (712) and the limiting block (713), one end of the supporting rod (711) is rotationally connected with the rotating ring (78), and the other end of the supporting rod (711) is rotationally connected with the connecting rod (72).

7. A backlight bevel dispenser of claim 3, wherein: the gear ring (44) is rotatably arranged on the rotating rod (41), a plurality of plug-in components (45) for limiting the rotation of the gear ring (44) are slidably arranged on the rotating rod (41), a pressure spring (46) is arranged between the plug-in components (45) and the rotating rod (41), and slots (47) matched with the plug-in components (45) are also formed in the gear ring (44).