CN211969944U

CN211969944U - Bale twines membrane machine cut membrane mechanism

Info

Publication number: CN211969944U
Application number: CN201922045905.1U
Authority: CN
Inventors: 刘丹; 刘繁华; 于柯; 马伟; 付宗宗; 李鹏; 田凡; 席光磊
Original assignee: Debont Co ltd
Current assignee: Debont Co ltd
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2020-11-20
Anticipated expiration: 2029-11-22

Abstract

The utility model relates to the technical field of agricultural machinery operation, in particular to a bale twines membrane machine's film cutting mechanism, including pressing from both sides membrane mechanism, cutting mechanism and being used for driving the actuating mechanism that the film clamping mechanism opened and shut, it includes main grip block and inferior grip block to press from both sides membrane mechanism, the horizontal cross-section of main grip block is type, the horizontal cross-section of inferior grip block is type structure of Chinese character ' ao ', cutting mechanism includes vertical electric jar and cutting part, be provided with vertical slotted hole in the middle of the inferior grip block, actuating mechanism includes X-shaped swivel mount, main grip block and inferior grip block are fixed respectively at the both ends of X-shaped swivel mount, the utility model discloses can realize the truncation position after the automatic cutting plastic film winding, improve and cut efficiency and bale winding efficiency; can tailor the plastic film that expandes, can not make the plastic film tip after tailorring glue together, through pressing from both sides membrane mechanism, avoid the plastic film because the waste that the cutting route skew caused, save the cost.

Description

Bale twines membrane machine cut membrane mechanism

Technical Field

The utility model relates to an agricultural machinery operation technical field specifically is a bale twines membrane machine's film cutting mechanism.

Background

The plastic film is wound on the bale by the existing bale film winding machine, the plastic film needs to be cut off after the wrapping is finished, the plastic film is cut off by the existing mode of cutting off the plastic film, a cutting-off position where the plastic film is unfolded is pressed into a strand by a manual cutting tool, the cutting-off position of the plastic film is cut off by the cutting tool, the cutting-off efficiency is low, the bale winding efficiency is reduced, and the plastic film has certain viscosity, so that the cutting-off positions are adhered together, and certain waste is caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bale twines membrane machine's film cutting mechanism to solve the problem that proposes in the above-mentioned background art.

The technical scheme of the utility model is that: the utility model provides a bale twines membrane cutting mechanism of membrane machine, is including pressing from both sides membrane mechanism, cutting mechanism and being used for the actuating mechanism that the drive presss from both sides membrane mechanism and opens and shuts, press from both sides membrane mechanism including the main grip block and the time grip block of vertical setting, the horizontal cross-section of main grip block is type shape, the horizontal cross-section of time grip block is character cut in bas-relief shape structure, the convex surface of main grip block can closely laminate with the concave surface of time grip block, cutting mechanism including vertical setting keep away from the vertical electric jar of one side of main grip block and with vertical electric jar transmission complex cutting part at time grip block, be provided with the vertical strip hole that is used for dodging the cutting part in the middle of the time grip block, actuating mechanism is including X shape swivel mount, main grip block and time grip block are fixed respectively at the both ends of X shape swivel mount.

Preferably, the X-shaped swivel mount is including two X-shaped rotary rods that equal level set up, two the X-shaped rotary rod interval sets up and all includes first rotary rod and the second rotary rod through vertical pivot normal running fit in vertical direction, is fixed with the U-shaped frame between the one end of two first rotary rods, main grip block is through the axis of rotation and the U-shaped frame normal running fit of vertical setting, the bottom of U-shaped frame is provided with the stopper, the bottom of main grip block is provided with the spacing head of contradicting the complex with the stopper, be provided with between the bottom of U-shaped frame and the bottom of main grip block and be used for driving main grip block and support the reset assembly who holds on the stopper all the time.

Preferably, the reset assembly comprises a first connecting rod, a second connecting rod and a reset spring, one end of the first connecting rod is hinged to the bottom end of the U-shaped frame, the other end of the first connecting rod is hinged to one end of the second connecting rod through a vertically arranged hinge shaft, the other end of the second connecting rod is hinged to the bottom end of the main clamping plate, one end of the reset spring is sleeved on the hinge shaft, and the other end of the reset spring is fixed to the bottom end of the rotating shaft.

Preferably, the included angle between the central line of the first connecting rod and the central line of the second connecting rod is always smaller than 180 degrees, and the opening of the included angle between the central line of the first connecting rod and the central line of the second connecting rod faces the rotating shaft.

Preferably, a vertical plate is fixed between one end of each of the two second rotating rods, the vertical electric cylinder is fixed on the vertical plate, a vertically arranged slide way is installed on the vertical plate, a slide block is arranged on the slide way in a sliding fit mode, the vertical electric cylinder is in transmission fit with the slide block, the cutting portion comprises a fixing bolt horizontally installed on the slide block and a cutting knife sleeved on the fixing shaft, the cutting knife is installed on the slide block through the fixing bolt, and the plane where the cutting knife is located can extend into the vertical strip hole.

Preferably, actuating mechanism is still including being used for driving first rotary rod and the drive assembly of second rotary rod relative rotation, is fixed with first vertical axle between the half section of two first rotary rods, is fixed with the vertical axle of second between the half section of two second rotary rods, rotate on two vertical pivots of X-shaped swivel mount and install the U-shaped frame, the side of U-shaped frame is provided with the bracing piece, the U-shaped frame is established on the bracing piece through the sleeve cover, be provided with locking bolt on the sleeve.

Preferably, the driving assembly comprises a first connecting rod, a second connecting rod and a driving cylinder, one end of the first connecting rod and one end of the second connecting rod are hinged to each other, the other end of the first connecting rod is rotatably mounted on a first vertical shaft, the other end of the second connecting rod is rotatably mounted on a second vertical shaft, the output end of the driving cylinder is hinged to one end of the first connecting rod and one end of the second connecting rod, which are hinged to each other, and the tail end of the driving cylinder is hinged to the middle section of the U-shaped frame.

Preferably, the sides of main grip block and inferior grip block are provided with the opposite vertical magnetic stripe of magnetic pole respectively, main grip block is provided with the vertical groove of dodging with the same length in vertical strip hole.

Preferably, both ends of vertical electric jar all are provided with proximity sensor, and all proximity sensor electric connection have the controller, drive actuating cylinder and controller electric connection.

The utility model discloses an improve and provide a bale here and twine membrane machine's film cutting mechanism, compare with prior art, have following improvement and advantage:

one is as follows: the cutting-off position of the plastic film after winding can be automatically cut, and the cutting-off efficiency and the bale winding efficiency are improved;

the second step is as follows: can tailor the plastic film that expandes, can not make the plastic film tip after tailorring sticky together, avoid the cost extravagant.

And thirdly: through pressing from both sides membrane mechanism, can avoid the cutting route skew, avoid the plastic film because the waste that the cutting route skew caused, save the cost.

Drawings

The invention is further explained below with reference to the figures and examples:

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

fig. 2 is a schematic perspective view of the present invention;

fig. 3 is a schematic three-dimensional structure of the present invention;

FIG. 4 is a schematic perspective view of the X-shaped rotating frame and the film clamping mechanism of the present invention;

FIG. 5 is a schematic perspective view of the main clamping plate and the U-shaped frame of the present invention;

FIG. 6 is a schematic perspective view of the main clamping plate, the reset assembly and the U-shaped frame of the present invention;

fig. 7 is a schematic perspective view of the reset module and the U-shaped frame of the present invention;

FIG. 8 is a first schematic view of the three-dimensional assembly of the secondary clamping plate and the cutting mechanism of the present invention;

FIG. 9 is a schematic view of the second clamping plate and the cutting mechanism of the present invention in a three-dimensional assembly;

description of reference numerals:

a film clamping mechanism 1, a main clamping plate 1a, a limiting head 1a1, a vertical avoiding groove 1a2, a vertical magnetic strip 1a3, a secondary clamping plate 1b, a vertical strip hole 1b1, a cutting mechanism 2, a cutting part 2a, a fixing bolt 2a1, a cutting knife 2a2, a vertical electric cylinder 2b, a vertical plate 2c, a slideway 2d, a sliding block 2e, a driving mechanism 3, an X-shaped rotating frame 4, an X-shaped rotating rod 4a, a first rotating rod 4a1, a second rotating rod 4a2, a vertical rotating shaft 4a3, a first vertical shaft 4a4, a second vertical shaft 4a5, a U-shaped frame 4b, a limiting block 4b1, a rotating shaft 4b2, a driving component 5, a first connecting rod 5a, a second connecting rod 5b, a driving air cylinder 5c, a reset component 6, a first connecting rod 6a, a second connecting rod 6b, a reset spring 6c, a hinge shaft 6d, a supporting rod 7, a sleeve 7b, a locking bolt 7c, U-shaped frame 7c, a proximity sensor 8.

Detailed Description

The present invention will be described in detail below, and it is apparent that the technical solutions in the embodiments of the present invention are described clearly and completely. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a bale twines membrane cutting mechanism of membrane machine through the improvement here, as shown in figure 1-figure 9, including film clamping mechanism 1, tailoring mechanism 2 and be used for driving film clamping mechanism 1 to open and shut actuating mechanism 3, film clamping mechanism 1 includes vertically arranged main grip block 1a and inferior grip block 1b, the horizontal cross-section of main grip block 1a is type of protruding, the horizontal cross-section of inferior grip block 1b is type of recessed character structure, the protruding surface of main grip block 1a and the concave surface of inferior grip block 1b can be closely laminated, tailoring mechanism 2 includes vertical electric jar 2b and the cutting part 2a with vertical electric jar 2b transmission fit that is vertically arranged at one side of inferior grip block 1b far away from main grip block 1a, be provided with the vertical slotted hole 1b1 that is used for dodging cutting part 2a in the middle of inferior grip block 1b, the driving mechanism 3 comprises an X-shaped rotating frame 4, the main clamping plate 1a and the secondary clamping plate 1b are respectively fixed at two ends of the X-shaped rotating frame 4, the plastic film penetrates through the driving mechanism 3 and is wound on the bales through the main clamping plate 1a and the secondary clamping plate 1b, the driving mechanism 3 drives the main clamping plate 1a and the secondary clamping plate 1b to move oppositely, so that the main clamping plate 1a is tightly attached to the secondary clamping plate 1b to clamp the plastic film, and the vertical electric cylinder 2b drives the cutting part 2a to vertically descend to cut the plastic film.

The X-shaped rotating frame 4 comprises two X-shaped rotating rods 4a which are horizontally arranged, the two X-shaped rotating rods 4a are arranged at intervals in the vertical direction and comprise a first rotating rod 4a1 and a second rotating rod 4a2 which are in running fit with each other through a vertical rotating shaft 4a3, a U-shaped frame 4b is fixed between one ends of the two first rotating rods 4a1, the main clamping plate 1a is in running fit with the U-shaped frame 4b through a vertically arranged rotating shaft 4b2, a limiting block 4b1 is arranged at the bottom of the U-shaped frame 4b, a limiting head 1a1 which is in interference fit with the limiting block 4b1 is arranged at the bottom of the main clamping plate 1a, a reset component 6 which is used for driving the main clamping plate 1a to always abut against the limiting block 4b1 is arranged between the bottom of the U-shaped frame 4b and the bottom of the main clamping plate 1a,

after the plastic film passes through X-shaped swivel mount 4 and accomplishes the bale winding through main grip block 1a and inferior grip block 1b, it stretches out to drive actuating cylinder 5c output shaft, first rotary rod 4a1 and second rotary rod 4a2 are rotatory relatively, drive main grip block 1a and remove to inferior grip block 1b, wherein reset assembly 6 makes the stopper 1a1 of main grip block 1a bottom closely laminate on stopper 4b1, reset assembly 6 guarantees that main grip block 1a contacts the function that has the buffering of misalignment of inferior grip block 1b, avoid pressing from both sides membrane mechanism 1 and damage.

The reset component 6 comprises a first connecting rod 6a, a second connecting rod 6b and a reset spring 6c, one end of the first connecting rod 6a is hinged with the bottom end of the U-shaped frame 4b, the other end of the first connecting rod 6a is hinged with one end of the second connecting rod 6b through a hinge shaft 6d which is vertically arranged, the other end of the second connecting rod 6b is hinged with the bottom end of the main clamping plate 1a, one end of the reset spring 6c is sleeved on the hinge shaft 6d, the other end of reset spring 6c is fixed in the bottom of axis of rotation 4b2, and reset spring 6c stimulates the mutual articulated one end of head rod 6a and second connecting rod 6b, and head rod 6a and second connecting rod 6b contradict respectively, and the contained angle increase of U-shaped frame 4b and main grip block 1a makes the stopper 4b1 of laminating all the time of limiting head 1a1 of main grip block 1 a.

The central line of first connecting rod 6a and the central line contained angle of second connecting rod 6b are less than 180 degrees all the time, the central line of first connecting rod 6a and the central line contained angle opening of second connecting rod 6b are towards axis of rotation 4b2, and under reset spring 6 c's effect, the central line of first connecting rod 6a and the central line contained angle of second connecting rod 6b can expand to the biggest.

A vertical plate 2c is fixed between one ends of the two second rotating rods 4a2, the vertical electric cylinder 2b is fixed on the vertical plate 2c, the vertical plate 2c is provided with a vertically arranged slide way 2d, the slide way 2d is matched with a slide block 2e in a sliding way, the vertical electric cylinder 2b is in transmission fit with the slide block 2e, the cutting part 2a comprises a fixed bolt 2a1 horizontally arranged on the slide block 2e and a cutting knife 2a2 sleeved on the fixed shaft, the cutting knife 2a2 is arranged on the sliding block 2e through a fixing bolt 2a1, the plane of the cutting knife 2a2 can extend into the vertical strip hole 1b1, after the main clamping plate 1a and the secondary clamping plate 1b clamp the plastic film, the vertical electric cylinder 2b drives the cutting knife 2a2 to ascend and descend through the vertical strip hole 1b1 to cut the plastic film between the main clamping plate 1a and the secondary clamping plate 1 b.

Actuating mechanism 3 is still including being used for driving first rotary rod 4a1 and second rotary rod 4a2 relative rotation's drive assembly 5, is fixed with first vertical axle 4a4 between two first rotary rod 4a 1's half sections, is fixed with second vertical axle 4a5 between two second rotary rod 4a 2's half sections, rotate on two vertical pivot 4a3 of X shape swivel mount 4 and install U-shaped frame 7c, the side of U-shaped frame 7c is provided with bracing piece 7, U-shaped frame 7c overlaps through sleeve 7a and establishes on bracing piece 7, be provided with locking bolt 7b on the sleeve 7a, through the position of adjustment sleeve 7a on bracing piece 7, the height of adjustment clamp membrane mechanism 1.

The driving assembly 5 comprises a first connecting rod 5a, a second connecting rod 5b and a driving cylinder 5c, one end of the first connecting rod 5a and one end of the second connecting rod 5b are hinged with each other, the other end of the first connecting rod 5a is rotatably mounted on a first vertical shaft 4a4, the other end of the second connecting rod 5b is rotatably mounted on a second vertical shaft 4a5, the output end of the driving cylinder 5c is simultaneously hinged with the mutually hinged end of the first connecting rod 5a and the second connecting rod 5b, the tail end of the driving cylinder 5c is hinged with the middle section of the U-shaped frame 7c, the output shaft of the driving cylinder 5c extends, the first vertical shaft 4a4 and the second vertical shaft 4a5 rotate in a reverse direction, the first rotating rod 4a1 and the second rotating rod 4a2 move in a opposite direction, the main clamping plate 1a and the secondary clamping plate 1b are tightly attached, and the output shaft of the driving cylinder 5c retracts, the first vertical shaft 4a4 and the second vertical shaft 4a5 are rotated in opposite directions, so that the first rotating lever 4a1 and the second rotating lever 4a2 are moved back to back, and the primary clamping plate 1a and the secondary clamping plate 1b are separated.

The side of main grip block 1a and inferior grip block 1b is provided with the opposite vertical magnetic stripe 1a3 of magnetic pole respectively, main grip block 1a is provided with the vertical groove 1a2 of dodging with the vertical same length of a hole 1b1, closely laminate when main grip block 1a and inferior grip block 1b, can guarantee through vertical magnetic stripe 1a3 that can not rock after main grip block 1a and the closely laminating of inferior grip block 1b, vertically dodge groove 1a2 simultaneously, cutting knife 2a2 is from vertical groove 1a2 interior process of dodging in the cutting process, guarantee that cutting knife 2a2 can cut the plastic film completely and open.

The two ends of the vertical electric cylinder 2b are both provided with proximity sensors 8, all the proximity sensors 8 are electrically connected with a controller, the driving cylinder 5c is electrically connected with the controller, a programmable logic controller is not shown in the controller, the controller is a digital operation controller with a microprocessor and used for automatic control, control instructions can be loaded into a memory at any time for storage and execution, the programmable logic controller is the prior art and does not need to be detailed here, the type of the programmable logic controller is SIMATIC S7-400, the type of the proximity sensor 8 is NPN type TL-Q5MC1, the proximity sensor 8 is the prior art and does not need to be detailed here, the controller is electrically connected with a start-stop switch, and the motor of the vertical electric cylinder 2b is a servo motor.

A film cutting method of a film cutting mechanism of a bale film wrapping machine comprises the following steps:

step S1: after the plastic film passes through the X-shaped rotating frame 4 and is wound on the bale through the main clamping plate 1a and the secondary clamping plate 1b, an output shaft of a driving cylinder 5c extends out, the first rotating rod 4a1 and the second rotating rod 4a2 rotate relatively to drive the main clamping plate 1a to move towards the secondary clamping plate 1b, and the reset assembly 6 enables the main clamping plate 1a to be tightly attached to the secondary clamping plate 1b to clamp the plastic film;

step S2: the controller controls the vertical electric cylinder 2b to drive the cutting knife 2a2 to vertically descend so as to cut the plastic film;

step S3: the cutting is accomplished, and the proximity sensor 8 when vertical electric jar 2b bottom senses slider 2e, and an electric signal of conveying gives the controller, and vertical electric jar 2b reverse movement of controller control, senses slider 2e when the proximity sensor 8 on vertical electric jar 2b top, and an electric signal of conveying gives the controller, and vertical electric jar 2b of controller control stops, and cutting knife 2a2 resets, drives the output shaft retraction of actuating cylinder 5c, and main grip block 1a and inferior grip block 1b separate.

The working principle is as follows:

step S1: after the plastic film passes through the X-shaped rotating frame 4 and is wound on the bales through the main clamping plate 1a and the secondary clamping plate 1b, a start-stop switch is pressed, an electric signal X1 is transmitted to the controller, the controller outputs a signal Y1 to a reversing valve on an air source of the driving air cylinder 5c, an air path of the driving air cylinder 5c is the prior art, details are not detailed here, an output shaft of the driving air cylinder 5c extends out, the first rotating rod 4a1 and the second rotating rod 4a2 rotate relatively to drive the main clamping plate 1a to move towards the secondary clamping plate 1b, and the reset assembly 6 enables the main clamping plate 1a to be tightly attached to the secondary clamping plate 1b to clamp the plastic film;

step S2: after the controller outputs a signal Y1 for a certain time interval, a signal Y2 is output to the vertical electric cylinder 2b again, and the vertical electric cylinder 2b drives the cutting knife 2a2 to vertically descend to cut the plastic film;

step S3: when the proximity sensor 8 at the bottom end of the vertical electric cylinder 2b senses the sliding block 2e, cutting is completed, an electric signal X2 is transmitted to the controller, the controller outputs a signal Y3 to the vertical electric cylinder 2b, the vertical electric cylinder 2b moves in the reverse direction, when the proximity sensor 8 at the top end of the vertical electric cylinder 2b senses the sliding block 2e, an electric signal is transmitted to the controller, the controller controls the vertical electric cylinder 2b to stop, the cutting knife 2a2 resets, the controller outputs a signal Y3 and simultaneously outputs a signal Y4 to a reversing valve on an air source of the driving air cylinder 5c, an output shaft of the driving air cylinder 5c retracts, and the main clamping plate 1a and the secondary clamping plate 1b are separated.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a bale twines membrane machine's film cutting mechanism which characterized in that: comprises a film clamping mechanism (1), a cutting mechanism (2) and a driving mechanism (3) for driving the film clamping mechanism (1) to open and close, wherein the film clamping mechanism (1) comprises a vertically arranged main clamping plate (1a) and a vertically arranged secondary clamping plate (1b), the horizontal section of the main clamping plate (1a) is in a convex shape, the horizontal section of the secondary clamping plate (1b) is in a concave shape structure, the convex surface of the main clamping plate (1a) and the concave surface of the secondary clamping plate (1b) can be tightly attached, the cutting mechanism (2) comprises a vertical electric cylinder (2b) vertically arranged on one side of the secondary clamping plate (1b) far away from the main clamping plate (1a) and a cutting part (2a) in transmission fit with the vertical electric cylinder (2b), a vertical strip hole (1b1) for avoiding the cutting part (2a) is arranged in the middle of the secondary clamping plate (1b), the driving mechanism (3) comprises an X-shaped rotating frame (4), and the main clamping plate (1a) and the secondary clamping plate (1b) are respectively fixed at two ends of the X-shaped rotating frame (4).

2. The film cutting mechanism of the bale film wrapping machine according to claim 1, characterized in that: the X-shaped rotating frame (4) comprises two X-shaped rotating rods (4a) which are horizontally arranged, the two X-shaped rotating rods (4a) are arranged at intervals in the vertical direction and respectively comprise a first rotating rod (4a1) and a second rotating rod (4a2) which are in running fit through a vertical rotating shaft (4a3), a U-shaped frame (4b) is fixed between one ends of the two first rotating rods (4a1), the main clamping plate (1a) is in rotating fit with the U-shaped frame (4b) through a rotating shaft (4b2) which is vertically arranged, the bottom of the U-shaped frame (4b) is provided with a limiting block (4b1), the bottom of the main clamping plate (1a) is provided with a limiting head (1a1) which is in interference fit with the limiting block (4b1), a reset component (6) used for driving the main clamping plate (1a) to always abut against the limiting block (4b1) is arranged between the bottom of the U-shaped frame (4b) and the bottom of the main clamping plate (1 a).

3. The film cutting mechanism of the bale film wrapping machine according to claim 2, characterized in that: reset assembly (6) are including head rod (6a), second connecting rod (6b) and reset spring (6c), the one end of head rod (6a) is articulated with the bottom of U-shaped frame (4b), the other end of head rod (6a) is articulated through articulated shaft (6d) of vertical setting and the one end of second connecting rod (6b), the other end and main grip block (1a) bottom of second connecting rod (6b) are articulated, reset spring (6c) one end is cup jointed on articulated shaft (6d), the bottom at axis of rotation (4b2) is fixed to the other end of reset spring (6 c).

4. The film cutting mechanism of the bale film wrapping machine according to claim 3, characterized in that: the included angle between the central line of the first connecting rod (6a) and the central line of the second connecting rod (6b) is always smaller than 180 degrees, and the included angle between the central line of the first connecting rod (6a) and the central line of the second connecting rod (6b) is opened towards the rotating shaft (4b 2).

5. The film cutting mechanism of the bale film wrapping machine according to claim 2, characterized in that: two be fixed with vertical board (2c) between the one end of second rotary rod (4a2), vertical electric cylinder (2b) are fixed on vertical board (2c), install slide (2d) of vertical setting on vertical board (2c), sliding fit has slider (2e) on slide (2d), vertical electric cylinder (2b) and slider (2e) transmission fit, cutting portion (2a) are including fixing bolt (2a1) of horizontal installation on slider (2e) and cover cutting knife (2a2) on the fixed axle, cutting knife (2a2) are installed on slider (2e) through fixing bolt (2a1), the place plane of cutting knife (2a2) can extend into vertical slotted hole (1b 1).

6. The film cutting mechanism of the bale film wrapping machine according to claim 5, characterized in that: actuating mechanism (3) are still including being used for driving first rotary rod (4a1) and second rotary rod (4a2) relatively rotatory drive assembly (5), are fixed with first vertical axle (4a4) between the half section of two first rotary rods (4a1), are fixed with second vertical axle (4a5) between the half section of two second rotary rods (4a2), rotate on two vertical pivot (4a3) of X shape swivel mount (4) and install U-shaped frame (7c), and the side of U-shaped frame (7c) is provided with bracing piece (7), U-shaped frame (7c) are established on bracing piece (7) through sleeve (7a) cover, be provided with locking bolt (7b) on sleeve (7 a).

7. The film cutting mechanism of the bale film wrapping machine according to claim 6, characterized in that: the driving assembly (5) comprises a first connecting rod (5a), a second connecting rod (5b) and a driving cylinder (5c), one end of the first connecting rod (5a) and one end of the second connecting rod (5b) are hinged to each other, the other end of the first connecting rod (5a) is rotatably installed on a first vertical shaft (4a4), the other end of the second connecting rod (5b) is rotatably installed on a second vertical shaft (4a5), the output end of the driving cylinder (5c) is hinged to one end of the first connecting rod (5a) and one end of the second connecting rod (5b) which are hinged to each other, and the tail end of the driving cylinder (5c) is hinged to the middle section of a U-shaped frame (7 c).

8. The film cutting mechanism of the bale film wrapping machine according to claim 1, characterized in that: the side of main grip block (1a) and time grip block (1b) is provided with vertical magnetic stripe (1a3) that the magnetic pole is opposite respectively, main grip block (1a) is provided with and keeps away groove (1a2) with the vertical that the same length of vertical strip hole (1b1) is vertical.

9. The film cutting mechanism of the bale film wrapping machine according to claim 7, characterized in that: the both ends of vertical electric jar (2b) all are provided with proximity sensor (8), and all proximity sensor (8) electric connection have the controller, drive actuating cylinder (5c) and controller electric connection.