CN215363728U

CN215363728U - Full-automatic feeding device for plastic film winding drum

Info

Publication number: CN215363728U
Application number: CN202121715194.5U
Authority: CN
Inventors: 程丹; 杜峻峰
Original assignee: Hubei Qiushi Packaging Products Co ltd
Current assignee: Hubei Qiushi Packaging Products Co ltd
Priority date: 2021-07-26
Filing date: 2021-07-26
Publication date: 2021-12-31
Anticipated expiration: 2031-07-26

Abstract

The utility model relates to a full-automatic loading attachment of plastic film winding drum, it includes the frame it is provided with on one side of the material loading conveyer belt to snatch the mechanism to lie in the frame, it includes vertical sliding connection arm in the frame, vertically sets up in the mounting panel of arm lower extreme, lies in the jack catch of mounting panel below and sets up the drive assembly on the mounting panel to snatch the mechanism, the jack catch includes vertical and relative first tongs and the second tongs that sets up, drive assembly is used for driving first tongs and second tongs and opens and shuts in order to press from inside to outside the core section of thick bamboo on the film winding drum of getting in the horizontal direction. Drive assembly can control the jack catch level in this application and open, and is tight with a refill section of thick bamboo top in refill section of thick bamboo inner wall both sides, from inside to outside gets the film reel and gets, gets in-process jack catch and can not lead to the fact the extrusion to the plastic film who rolls up on a refill section of thick bamboo outer wall, has improved the jack catch and has easily crushed plastic film's problem at the in-process that snatchs the film reel, has improved plastic film's product quality.

Description

Full-automatic feeding device for plastic film winding drum

Technical Field

The application relates to the field of plastic film winding drum feeding devices, in particular to a full-automatic plastic film winding drum feeding device.

Background

The plastic film is a plastic product with light weight, thin thickness and good ductility, and is commonly used for packaging and film coating layers, and the production and processing of the plastic film generally comprises the following processes: plastic plasticizing production → film rolling → film packaging.

The plastic film winding is a process of continuously winding a plastic film continuously generated at the upstream of a production line on a paper core cylinder to form a film roll, the wound plastic film is tightly wound and sleeved on the paper core cylinder to form a film winding drum, and the film winding drum is conveyed to the next process flow through a plastic winding drum feeding device for processing. The plastic winding drum feeding device comprises a rack, wherein a feeding conveying belt, a grabbing mechanism and a numerical control positioning mechanism used for controlling the grabbing mechanism to move up and down, left and right and back and forth are arranged on the rack, a film winding drum is stacked on one side of the rack, the grabbing mechanism comprises a mechanical arm and a clamping jaw located at the grabbing end of the mechanical arm, the numerical control positioning mechanism controls the mechanical arm and the clamping jaw to move, the clamping jaw is enabled to be pressed from outside to inside to grab the film winding drum and convey the film winding drum onto the feeding conveying belt, and the film winding drum is conveyed to the next process flow through the feeding conveying belt.

In view of the above-mentioned related technologies, the inventor found that in the process of feeding and transporting the film roll, when the jaws press and grab the film roll from outside to inside due to the thin thickness of the plastic film, the plastic film on the outer ring is pressed excessively, so that the surface of the plastic film forms an indentation, which affects the quality of the finished product.

SUMMERY OF THE UTILITY MODEL

In order to improve the jack catch and be grabbing the problem that the in-process of film reel easily crushd plastic film, improve plastic film's product quality, this application provides a full automatic feeding device of plastic film winding drum.

The application provides a full-automatic loading attachment of plastic film winding drum adopts following technical scheme:

the utility model provides a full-automatic loading attachment of plastic film winding drum, includes the frame it is provided with the mechanism of snatching to lie in material loading conveyer belt one side in the frame, snatch the mechanism and include vertical sliding connection arm in the frame, vertically set up in the mounting panel of arm lower extreme, be located the jack catch of mounting panel below and set up the drive assembly on the mounting panel, the jack catch includes vertical and relative first tongs and the second tongs that sets up, drive assembly is used for driving first tongs and second tongs open and shut in order to press from inside to outside to get the core section of thick bamboo on the film winding drum in the horizontal direction.

By adopting the technical scheme, when the position of the film winding drum to be clamped is determined by the numerical control positioning mechanism, the mechanical arm can be controlled to vertically slide downwards, and the clamping jaw is driven to accurately extend into the paper core cylinder; the driving assembly drives the first gripper and the second gripper to be away from each other in the horizontal direction, so that the clamping jaws are opened, the first gripper and the second gripper tightly push the paper core cylinder on two sides of the inner wall of the paper core cylinder, the film winding cylinder is clamped from inside to outside, the clamping jaws cannot extrude the plastic film wound on the outer wall of the paper core cylinder in the process, the problem that the clamping jaws easily crush the plastic film in the process of grabbing the film winding cylinder is solved, and the product quality of the plastic film is improved.

Optionally, the drive assembly includes that relative and horizontal slip sets up in the first rack and the second rack of the same high department of mounting panel, rotates and connects in the first gear and the second gear of the same high department of mounting panel and set up the driving piece on the mounting panel, first gear and second gear specification are unanimous, first rack is unanimous with second rack specification, the driving piece is used for driving first gear and second gear simultaneous antiport, first gear is located first rack top and meshes with first rack, the second gear is located second rack top and meshes with the second rack, first tongs rigid coupling in first rack lower part, second tongs rigid coupling in second rack lower part.

By adopting the technical scheme, the driving piece can control the direction of the reverse rotation of the first gear and the second gear, so as to drive the first rack and the second rack to be close to or far away from each other, further drive the first hand grip and the second hand grip to be close to or far away from each other, and control the opening and closing of the clamping jaws; this application loading attachment adopts the meshing of first gear and first rack to and the meshing of second gear and second rack, controls opening and shutting of first tongs and second tongs, and the transmission is steady reliable, and it is more accurate to snatch the mechanism and snatch the film reel.

Optionally, the driving piece includes vertical drive plate that sets up on the mounting panel, be used for driving the drive plate and be straight reciprocating motion's drive actuating cylinder, rigid coupling on first gear and with first gear coaxial third gear and rigid coupling on the second gear and with the fourth gear coaxial fourth gear, the diameter that third gear and fourth gear specification are unanimous and the third gear is less than the diameter of first gear, the drive plate lies in between third gear and the fourth gear on the horizontal direction one side that is close to the third gear on the drive plate and one side that is close to the fourth gear are provided with third rack and fourth rack respectively, third rack and third gear engagement, fourth rack and fourth gear engagement.

By adopting the technical scheme, the driving cylinder drives the driving plate to do linear reciprocating motion in the vertical direction, so that the third rack and the fourth rack are driven to linearly reciprocate in the vertical direction, the third rack and the fourth rack drive the third gear and the fourth gear to simultaneously and reversely rotate, the third gear and the fourth gear respectively drive the first gear and the second gear to simultaneously and reversely rotate, and the first rack and the second rack are further driven to be far away from or close to each other; the first gear, the third gear, the second gear and the fourth gear form two groups of double-layer gears, and more efficient transmission of the first rack and the second rack in a small space can be achieved.

Optionally, an inwards recessed first sliding groove is vertically formed in one side, close to the drive plate, of the mounting plate, and a sliding rail in sliding connection with the first sliding groove is correspondingly arranged on the drive plate.

Through adopting above-mentioned technical scheme, when the drive plate reciprocated on vertical direction, vertical slip in can the first spout on the mounting panel, the slip of drive plate is more steady, and third rack and fourth rack drive third gear and fourth gear rotation are more reliable.

Optionally, the mounting panel lower part is provided with the guide board towards the protrusion of one side that is close to the rack, the guide board level sets up and with the perpendicular rigid coupling of mounting panel, sets up the second spout that lays along first tongs and second tongs direction of opening and shutting on the guide board first tongs upper portion and second tongs upper portion correspond and are provided with first slider and the second slider that is used for with second spout cooperation sliding connection, first slider upper portion and first rack rigid coupling, second slider upper portion and second rack rigid coupling.

By adopting the technical scheme, when the driving assembly drives the first rack and the second rack to be close to or away from each other, the first sliding block and the second sliding block are close to or away from each other in the second sliding groove, and the guide plate and the second sliding groove can better limit the movement of the first sliding block and the second sliding block, so that the first gripper and the second gripper can be more stably and reliably linearly away from or close to each other; simultaneously, the guide plate has effectively supported first rack and second rack, and it is more reliable to snatch the mechanism.

Optionally, one side of the first gripper, which is far away from the second gripper, and one side of the second gripper, which is far away from the first gripper, are correspondingly set to be arc surfaces, and the two arc surfaces are used for being abutted to the inner wall of the paper core tube.

Through adopting above-mentioned technical scheme, first tongs and second tongs top when tightly in refill section of thick bamboo inner wall both sides, the cambered surface can carry out the butt with the refill section of thick bamboo inner wall, has increased the area of contact between first tongs and second tongs and the refill section of thick bamboo, and the jack catch can increase the area of snatching of refill section of thick bamboo, and is more firm to snatching of refill section of thick bamboo.

Optionally, rubber pads are arranged on the cambered surfaces of the first gripper and the second gripper.

Through adopting above-mentioned technical scheme, the rubber pad can play the cushioning effect between first tongs and refill section of thick bamboo inner wall, between second tongs and refill section of thick bamboo inner wall, plays effective protection to refill section of thick bamboo inner wall and first tongs, second tongs.

Optionally, the rubber pad is provided with anti-slip lines.

Through adopting above-mentioned technical scheme, when first tongs, the tight refill section of thick bamboo in second tongs top were got the film reel and are got, the frictional force between first tongs and refill section of thick bamboo inner wall, between second tongs and the refill section of thick bamboo inner wall can be increased to the antiskid line for the jack catch is more firm to the snatching of refill section of thick bamboo.

Optionally, a buffer block is arranged on the lower portion of the first gripper and the lower portion of the second gripper.

Through adopting above-mentioned technical scheme, when the arm drives the jack catch downstream, the buffer block can play better buffering protection to the jack catch in first tongs and second tongs lower part.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the driving assembly drives the first gripper and the second gripper to be away from each other in the horizontal direction, so that the clamping jaws can be opened, the paper core cylinder is tightly pushed in the paper core cylinder, the film winding drum is clamped from inside to outside, the plastic film cannot be extruded by the clamping jaws, the problem that the plastic film is easily crushed by the clamping jaws in the process of grabbing the film winding drum is solved, and the product quality of the plastic film is improved;

2. the opening and closing of the first gripper and the second gripper are controlled through the meshing of the first gear and the first rack and the meshing of the second gear and the second rack, the transmission is stable and reliable, and the film winding drum can be grabbed by the grabbing mechanism more accurately;

3. two groups of double-layer gears are formed by the first gear, the third gear, the second gear and the fourth gear, and therefore the more efficient transmission of the first rack and the second rack in a small space can be achieved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

fig. 2 is a schematic view of the overall structure of the grasping mechanism.

Reference numerals: 1. a frame; 2. a feeding conveyor belt; 3. a grabbing mechanism; 31. a mechanical arm; 32. mounting a plate; 321. a guide plate; 3211. a second chute; 322. a first chute; 33. a claw; 331. a first gripper; 332. a second gripper; 333. a rubber pad; 334. a buffer block; 34. a drive assembly; 341. a first rack; 342. a second rack; 343. a first gear; 344. a second gear; 345. a drive member; 3451. a drive plate; 34511. a third rack; 34512. a fourth rack; 3452. a driving cylinder; 3453. a third gear; 3454. a fourth gear; 4. numerical control positioning mechanism.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses full automatic feeding device of plastic film winding drum.

Referring to fig. 1, a full-automatic loading attachment of plastic film winding drum includes frame 1, be provided with material loading conveyer belt 2 in frame 1, snatch mechanism 3 and be used for controlling and snatch mechanism 3 and carry out upper and lower, control and fore-and-aft movement's numerical control positioning mechanism 4, material loading conveyer belt 2 is located frame 1 below and direction of delivery sets up along frame 1 length direction, it is located frame 1 upper portion and can carry out rectilinear slide along frame 1 length direction or along frame 1 width direction in the horizontal plane to snatch mechanism 3, numerical control positioning mechanism 4 is located frame 1 upper portion and sets up in snatching mechanism 3 one side, numerical control positioning mechanism 4 and snatch mechanism 3 and can carry out the vertical slip relative to frame 1 in the vertical direction.

When the film winding drum is stacked below the machine frame 1, the numerical control positioning mechanism 4 can position the position of the film winding drum, and then the grabbing mechanism 3 is controlled to move to the position above the film winding drum to grab the film winding drum.

Referring to fig. 1 and 2, the gripping mechanism 3 includes a mechanical arm 31 vertically and slidably connected to the frame 1, a mounting plate 32 vertically disposed at a lower end of the mechanical arm 31, a claw 33 located below the mounting plate 32, and a driving assembly 34 disposed on the mounting plate 32, wherein the claw 33 includes a first claw 331 and a second claw 332 vertically and oppositely disposed, and the driving assembly 34 is configured to drive the first claw 331 and the second claw 332 to open and close in a horizontal direction to grip a core barrel on a film roll from inside to outside.

The arrangement direction of the first gripper 331 and the second gripper 332 is consistent with the width direction of the rack 1, in other embodiments, the arrangement direction of the first gripper 331 and the second gripper 332 may also be consistent with the length direction of the rack 1, and the arrangement along the length or the width of the rack 1 is structurally reasonable; in order to increase the contact area between the claw 33 and the film roll, one side of the first gripper 331, which is far away from the second gripper 332, and one side of the first gripper 331, which is far away from the second gripper 332, are both provided with cambered surfaces, and the cambered surfaces face the opening and closing directions of the first gripper 331 and the second gripper 332 in the horizontal direction, which are consistent, namely, the cambered surfaces are arranged along the width direction of the rack 1, when the first gripper 331 and the second gripper 332 are tightly pressed against two sides of the inner wall of the paper core tube, the cambered surfaces on two sides of the claw 33 can be abutted against the inner wall of the paper core tube, so that the grabbing area of the paper core tube is increased, and the claw 33 grabs the paper core tube more firmly.

Further, rubber pads 333 are arranged on the cambered surfaces of the first gripper 331 and the second gripper 332, so that buffering is performed between the first gripper 331 and the inner wall of the paper core barrel and between the second gripper 332 and the inner wall of the paper core barrel, and the inner wall of the paper core barrel and the first gripper 331 and the second gripper 332 are protected; the rubber pad 333 is also provided with horizontal anti-slip lines which can increase the friction between the first gripper 331 and the inner wall of the paper core cylinder and between the second gripper 332 and the inner wall of the paper core cylinder, so that the gripper can grasp the paper core cylinder more firmly.

The buffer blocks 334 are arranged on the lower portions of the first gripper 331 and the second gripper 332, and when the mechanical arm 31 drives the claw 33 to move downwards, the buffer blocks 334 can protect the claw 33 well under the first gripper 331 and the second gripper 332.

Referring to fig. 2, the driving assembly 34 includes a first rack 341 and a second rack 342 relatively and horizontally slidably disposed at the same height of the mounting plate 32, a first gear 343 and a second gear 344 rotatably connected at the same height of the mounting plate 32, and a driving member 345 disposed on the mounting plate 32, the first gear 343 and the second gear 344 having the same specifications, the first rack 341 and the second rack 342 having the same specifications, the first gear 343 being located above the first rack 341 and engaged with the first rack 341, the second gear 344 being located above the second rack 342 and engaged with the second rack 342, the first gripper 331 being fixedly connected to a lower portion of the first rack 341, the second gripper 332 being fixedly connected to a lower portion of the second rack 342, the driving member 345 being located between the first gear 343 and the second gear 344, and the driving member 345 for driving the first gear 343 and the second gear 344 to simultaneously rotate in opposite directions; when the film roll needs to be clamped, the driving member 345 is controlled to move upwards or downwards, so that the directions of the first gear 343 and the second gear 344 in opposite rotation can be controlled, the first rack 341 and the second rack 342 are driven to approach or separate from each other, the first hand grip 331 and the second hand grip 332 are driven to approach or separate from each other, and the opening and closing of the jaws 33 are controlled.

The driving member 345 includes a driving plate 3451 vertically disposed on the mounting plate 32, a driving cylinder 3452 for driving the driving plate 3451 to reciprocate linearly in the vertical direction, a third gear 3453 fixed to the first gear 343 and coaxial with the first gear 343, and a fourth gear 3454 fixed to the second gear 344 and coaxial with the second gear 344, the third gear 3453 and the fourth gear 3454 are in the same size, the diameter of the third gear 3453 is smaller than that of the first gear 343, the number of teeth of the third gear 3453 is greater than that of the first gear 343, the driving plate 3451 is horizontally disposed between the third gear 3453 and the fourth gear 3454, a third rack 34511 and a fourth rack 34512 are respectively disposed on one side of the driving plate 3451 close to the third gear 3453 and one side of the driving plate 3454 close to the fourth gear 3454, the third rack 34511 and the fourth rack 34512 are in the same size and symmetrically disposed on both sides of the driving plate 3451, third rack 34511 is engaged with third gear 3453, and fourth rack 34512 is engaged with fourth gear 3454.

Referring to fig. 2, in order to make the vertical reciprocating motion of the driving plate 3451 on the mounting plate 32 more stable, an inwardly recessed first sliding groove 322 is vertically formed on one side of the mounting plate 32 close to the driving plate 3451, and a sliding rail that is in sliding connection with the first sliding groove 322 is correspondingly arranged on the driving plate 3451.

When the driving cylinder 3452 drives the driving plate 3451 to move downwards in the vertical direction, the third rack 34511 and the fourth rack 34512 also move downwards in the vertical direction, the third rack 34511 and the fourth rack 34512 drive the third gear 3453 and the fourth gear 3454 to rotate in opposite directions at the same time, the third gear 3453 drives the first gear 343 to rotate in the same direction, the fourth gear 3454 drives the second gear 354 to rotate in the same direction, so as to drive the first rack 341 and the second rack 342 to move away from each other, the first gripper 331 and the second gripper 332 move away from each other, and the jaws 33 are opened to jack the paper core cylinder from inside to outside in the paper core cylinder, so as to clamp the paper core cylinder; in the process, the first gear 343, the third gear 3453, the second gear 344 and the fourth gear 3454 form two groups of double-layer gears, so that the first rack 341 and the second rack 342 can be more efficiently transmitted in a smaller space, and meanwhile, the first gear 343, the first rack 341 and the second gear 344 are engaged to control the opening and closing of the first gripper 331 and the second gripper 332, so that the transmission is stable and reliable, and the gripping mechanism 3 can more accurately grip the film roll.

Referring to fig. 2, a guide plate 321 for further limiting the movement of the first rack 341, the second rack 342, the first gripper 331 and the second gripper 332 is convexly disposed on one side of the lower portion of the mounting plate 32, the guide plate 321 is horizontally disposed and vertically and fixedly connected to the mounting plate 32, a second sliding slot 3211 disposed along the opening and closing direction of the first gripper 331 and the second gripper 332 is disposed on the guide plate 321, a first slider and a second slider matched and slidably connected with the second sliding slot 3211 are correspondingly disposed on the upper portion of the first gripper 331 and the upper portion of the second gripper 332, the upper portion of the first slider is fixedly connected with the first rack 341, the lower portion of the first slider is fixedly connected with the first gripper 331, the upper portion of the second slider is fixedly connected with the first rack 341, the lower portion of the second slider is fixedly connected with the second gripper 332, and the first slider and the second slider are slidably connected in the second sliding slot 3211; when the first rack 341 and the second rack 342 approach or depart from each other, the first slider and the second slider approach or depart from each other in the second sliding groove 3211, and the guide plate 321 and the second sliding groove 3211 limit the movement of the first slider and the second slider better, so that the first hand grip 331 and the second hand grip 332 can more stably and reliably move away or approach linearly; meanwhile, the guide plate 321 effectively supports the first rack 341 and the second rack 342, and the grasping mechanism 3 is more reliable.

Still be provided with the protective housing who is used for drive assembly 34 to carry out the protection on mounting panel 32, protective housing and mounting panel 32 cooperation cover in the drive assembly 34 outside, have played better dustproof effect.

The implementation principle of the full-automatic feeding device for the plastic film winding drum in the embodiment of the application is as follows: when the film roll needs to be clamped, the numerical control positioning mechanism 4 is started, the mechanical arm 31 on the clamping mechanism 3 can be controlled to move downwards, so that the clamping claw 33 extends into the paper core cylinder, the driving plate 3451 is controlled to move downwards to drive the third gear 343 and the fourth gear 344 to rotate in opposite directions, further the first rack 341 and the second rack 342 are driven to move away from each other, so that the first hand 331 and the second hand 332 are driven to move away from each other, the clamping claw 33 opens in the paper core cylinder and tightly supports the paper core cylinder on two sides of the inner wall of the paper core cylinder, thereby clamping and fixing the paper core cylinder, after the paper core cylinder is clamped and fixed, the mechanical arm 31 moves upwards and drives the clamping claw 33 and the paper core cylinder to move to the upper part of the feeding conveyor belt 2 in the horizontal direction, the paper core cylinder is placed on the feeding conveyor 2, meanwhile, the driving plate 3451 moves upwards to enable the first rack 341 and the second rack 342 to approach each other, and the first hand 331 and the second hand 332 approach each other, the clamping jaws 33 are closed in the paper core cylinder and separated from the paper core cylinder, the paper core cylinder is conveyed to the next working position through the feeding conveyor belt 2, the grabbing mechanism 3 and the numerical control positioning mechanism 4 are controlled by the numerical control device, and the steps are repeated, so that the automatic feeding of the film winding drum is realized; in this process, drive assembly 34 can control jack catch 33 level and open, and is tight with the refill section of thick bamboo top in refill section of thick bamboo inner wall both sides, presss from both sides from inside to outside to the film reel and gets, presss from both sides in-process jack catch 33 and can not cause the extrusion to the plastic film who rolls up on the refill section of thick bamboo outer wall, has improved jack catch 33 and has easily crushed plastic film's problem at the in-process of grabbing the film reel, has improved plastic film's product quality.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a full-automatic loading attachment of plastic film winding drum, includes frame (1) it is provided with on one side of material loading conveyer belt (2) and snatchs mechanism (3), its characterized in that to lie in frame (1): snatch mechanism (3) including vertical sliding connection arm (31) in frame (1), vertically set up in mounting panel (32) of arm (31) lower extreme, jack catch (33) that are located mounting panel (32) below and set up drive assembly (34) on mounting panel (32), jack catch (33) are including vertical and relative first tongs (331) and the second tongs (332) that set up, drive assembly (34) are used for driving first tongs (331) and second tongs (332) and open and shut in order to press from inside to outside to press from both sides the refill section of thick bamboo on the film reel.

2. The fully automatic feeding device of a plastic film take-up reel according to claim 1, characterized in that: the driving assembly (34) comprises a first rack (341) and a second rack (342) which are relatively and horizontally slidably arranged at the same height of the mounting plate (32), a first gear (343) and a second gear (344) which are rotatably connected at the same height of the mounting plate (32), and a driving member (345) arranged on the mounting plate (32), wherein the first gear (343) and the second gear (344) are in the same specification, the first rack (341) and the second rack (342) are in the same specification, the driving member (345) is used for driving the first gear (343) and the second gear (344) to simultaneously rotate in opposite directions, the first gear (343) is positioned above the first rack (341) and is meshed with the first rack (341), the second gear (344) is positioned above the second rack (342) and is meshed with the second rack (342), and the first hand (331) is fixedly connected to the lower part of the first rack (341), the second handle (332) is fixedly connected to the lower part of the second rack (342).

3. The fully automatic feeding device of a plastic film take-up reel according to claim 2, characterized in that: the driving part (345) comprises a driving plate (3451) vertically arranged on the mounting plate (32), a driving cylinder (3452) for driving the driving plate (3451) to do linear reciprocating motion in the vertical direction, a third gear (3453) fixedly connected to the first gear (343) and coaxial with the first gear (343), and a fourth gear (3454) fixedly connected to the second gear (344) and coaxial with the second gear (344), wherein the third gear (3453) and the fourth gear (3454) have the same specification, the diameter of the third gear (3453) is smaller than that of the first gear (343), the driving plate (3451) is horizontally arranged between the third gear (3453) and the fourth gear (3454), a third rack (511) and a fourth rack (34512) are respectively arranged on one side of the driving plate (3451) close to the third gear (3453) and one side of the driving plate (3454) close to the fourth gear (3454), the third rack gear (34511) is engaged with the third gear (3453), and the fourth rack gear (34512) is engaged with the fourth gear (3454).

4. A fully automatic feeding device of a plastic film take-up reel according to claim 3, characterized in that: an inwards-concave first sliding groove (322) is vertically formed in one side, close to the driving plate (3451), of the mounting plate (32), and sliding rails matched and connected with the first sliding groove (322) in a sliding mode are correspondingly arranged on the driving plate (3451).

5. The fully automatic feeding device of a plastic film take-up reel of claim 4, characterized in that: mounting panel (32) lower part is provided with guide board (321) towards the one side protrusion that is close to the rack, guide board (321) level sets up and with mounting panel (32) perpendicular rigid coupling, offer on guide board (321) along first tongs (331) and second tongs (332) second spout (3211) that the direction was laid that opens and shuts first tongs (331) upper portion and second tongs (332) upper portion correspond and are provided with first slider and the second slider that is used for with second spout (3211) cooperation sliding connection, first slider upper portion and first rack (341) rigid coupling, second slider upper portion and second rack (342) rigid coupling.

6. The fully automatic feeding device of a plastic film take-up reel according to claim 1, characterized in that: one side of the first gripper (331) far away from the second gripper (332) and one side of the second gripper (332) far away from the first gripper (331) are correspondingly arranged to be cambered surfaces, and the two cambered surfaces are used for being abutted to the inner wall of the paper core tube.

7. The fully automatic feeding device of a plastic film take-up reel of claim 6, characterized in that: rubber pads (333) are arranged on the cambered surfaces of the first gripper (331) and the second gripper (332).

8. The fully automatic feeding device of a plastic film take-up reel of claim 7, characterized in that: the rubber pad (333) is provided with anti-skid grains.

9. The fully automatic feeding device of a plastic film take-up reel according to claim 1, characterized in that: and buffer blocks (334) are arranged at the lower parts of the first gripper (331) and the second gripper (332).