Film cutting device

Abstract

The utility model relates to a film cutting device, which comprises a clamping seat, a cutting device and a cutting device, the cutter assembly comprises a cutter; the picking assembly comprises a first sliding seat and a picking rod, the first sliding seat can be driven by a longitudinal driving mechanism to move in a reciprocating mode in the first direction, the picking rod is arranged on the first sliding seat, and the picking rod is arranged in an inner hole of the film in a penetrating mode and can move along with the first sliding seat to be gradually close to the chuck so as to pick up the films falling down in sequence in the cutting process; the material pushing assembly comprises a material pushing driving mechanism and a material pushing part, and the material pushing part is arranged adjacent to the material picking rod and can move in the length direction of the material picking rod under the driving of the material pushing driving mechanism so as to push the film on the material picking rod away from the material picking rod. The automatic film cutting machine has the advantages that automatic design of the material receiving action and the discharging action in the film cutting process is achieved, the film cutting machining efficiency is effectively improved, and the labor intensity of operators is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to piston rubber sheet processing technical field especially relates to a rubber sheet cutting device. BACKGROUND

[0002] The shock absorber is installed in parallel with the elastic element of the automobile suspension. When the relative movement occurs between the frame and the axle due to the vibration, the piston in the shock absorber can move up and down. Due to the frequent relative movement of the piston and the cylinder body of the shock absorber, the material with wear resistance and small frictional resistance, such as polytetrafluoroethylene, needs to be coated on the surface of the piston to prolong the service life. The rubber sheet with relatively thin thickness is coated on the outer part of the piston body, and the rubber sheet is formed on the piston body by the rubber coating process. For example, the Chinese invention patent application with the application number 201810796605.4 discloses a piston rubber coating and sheet hot forming device.

[0003] The main process of the rubber sheet cutting device in the prior art is to cut the rotating film into sheets by feeding the cutter in the radial direction. After the film cutting is completed, the unloading process is usually carried out manually, that is, the operator picks up the cut rubber sheet by the picking rod during the cutting process, and transfers the rubber sheet on the picking rod after the cutting of one film is completed. This unloading method has low automation level, high labor intensity, and relatively low cutting processing efficiency.

[0004] Therefore, the existing rubber sheet cutting device needs to be further improved. INVENTION CONTENTS

[0005] The utility model solves the technical problem in the prior art, and provides a rubber sheet cutting device capable of realizing automatic film feeding.

[0006] The utility model adopts the technical scheme for solving the above technical problem, and provides a rubber sheet cutting device, which comprises:

[0007] The clamping seat comprises a seat body and a chuck provided on the seat body and rotated by a rotary driving mechanism. One end of the film to be cut is clamped on the chuck.

[0008] The cutter assembly comprises a cutter which can move along the axis direction of the film clamped on the chuck and feed in the radial direction to cut the film into rubber sheets.

[0009] The picking assembly comprises a first sliding seat which can reciprocate along a first direction under the driving of a longitudinal driving mechanism and a picking rod provided on the first sliding seat. The extension direction of the picking rod and the first direction are parallel to the axis of the film clamped on the chuck. The picking rod is provided in the inner hole of the film and can gradually approach the chuck along the movement of the first sliding seat to pick up the rubber sheets sequentially falling during the cutting process.

[0010] The pushing assembly comprises a pushing driving mechanism and a pushing member, which is arranged adjacent to the pickup rod and can move along the length direction of the pickup rod under the driving of the pushing driving mechanism so as to push the film on the pickup rod away from the pickup rod.

[0011] Generally, the pushing member can adopt the structure of a pushing rod, a pushing lever or a pushing plate. In order to ensure that the film on the pickup rod can be smoothly pushed down, preferably, the pushing member is a plate-shaped structure which is perpendicular to the pickup rod and is sleeved outside the pickup rod.

[0012] Considering that the first several films (generally the first three or four films) cut from the film roll have certain defects, in order to separate the above defective films and avoid mixing with good films, the end of the pickup rod close to the chuck is a dropping end, and a position on the pickup rod adjacent to the dropping end and having a certain distance from the dropping end in the axial direction is referred to as a buffer position.

[0013] The pushing member has at least a first pushing action of moving outward from the end of the pickup rod away from the chuck to the buffer position and a second pushing action of moving outward from the buffer position of the pickup rod to the position of the dropping end or to a position away from the pickup rod.

[0014] Generally, the film frame for collecting good films and the film port for collecting defective films are located at different positions. In order to adapt to this and realize automatic collection of good films and defective films, a second sliding seat is arranged on the first sliding seat, and the pickup rod and the pushing assembly are arranged on the second sliding seat. The second sliding seat can reciprocate along the transverse direction between a first dropping position and a second dropping position on the first sliding seat. When the second sliding seat moves to the first dropping position, the pushing member performs the first pushing action, and when the second sliding seat moves to the second dropping position, the pushing member performs the second pushing action.

[0015] In order to avoid that the last several defective films are also pushed away from the pickup rod when the first pushing action is performed, the peripheral wall of the pickup rod close to the chuck is designed as a taper structure whose cross-sectional dimension gradually increases from the side away from the chuck to the side close to the chuck. The end of the pickup rod is designed as a taper structure, so that the falling process of the film has a certain resistance, which ensures that the good films and the defective films can be better separated.

[0016] In order to drive the cutter to feed along the radial direction of the film for cutting, a third slide is slidably arranged on the first slide in the transverse direction, and the cutter assembly is arranged on the third slide. Since the third slide for carrying the cutter assembly is also slidably arranged on the first slide, the movement of the third slide in the first direction is synchronized with the movement of the pickup rod, so that the pickup rod can better pick up the film dropped each time.

[0017] In order to ensure the strength of the cutter and the cutting effect of the film, the cutter head has a cutting edge with gradually decreasing thickness.

[0018] Generally, the film on the pickup rod can be directly pushed away after being moved to a set position to achieve the purpose of discharging, but considering the space layout restriction, the corresponding collection frame for collecting the film is far away from the pickup rod. In order to realize the transfer and discharge of the film on the pickup rod, a discharge rod and a discharge movement mechanism for driving the discharge rod to move are further included. The discharge rod is arranged in an inclined manner and can be moved to a position where the upper end thereof is close to or in contact with the end of the pickup rod under the driving of the discharge movement mechanism to receive the film dropped from the pickup rod.

[0019] In order to simplify the structure of the discharge movement mechanism, the discharge movement mechanism includes:

[0020] The first clamping assembly includes a first clamping jaw and a first clamping cylinder for driving the first clamping jaw to clamp and open;

[0021] The second clamping assembly includes a second clamping jaw and a second clamping cylinder for driving the second clamping jaw to clamp and open;

[0022] The lifting cylinder has a power output end connected with the second clamping assembly and can drive the second clamping assembly to move up and down;

[0023] The discharge movement mechanism has at least a first action process and a second action process. In the first action process, the first clamping jaw releases the upper end of the discharge rod, the second clamping jaw clamps the lower end of the discharge rod, and the second clamping jaw and the discharge rod clamped thereby are driven by the lifting cylinder to move downward, so that the upper end of the discharge rod is close to or in contact with the end of the pickup rod to receive the film dropped from the pickup rod. In the second action process, the lifting cylinder drives the second clamping jaw and the discharge rod clamped thereby to move upward, so that the upper end of the discharge rod is moved to the position of the first clamping jaw, the first clamping jaw clamps the upper end of the discharge rod, the second clamping jaw releases the lower end of the discharge rod, and each film sleeved on the discharge rod is dropped from the lower end of the discharge rod.

[0024] It is conceived that the material dropping rod can also be gripped and pose exchanged by other conventional mechanical hands (such as a six-axis mechanical hand) to realize the material receiving, transferring and discharging actions of the film.

[0025] Generally, the longitudinal driving mechanism and the material pushing driving mechanism can be driven by a driving source such as a cylinder or a motor. In order to save cost and improve action efficiency, the longitudinal driving mechanism and the material pushing driving mechanism are both cylinders.

[0026] Compared with the prior art, the film cutting device has the following advantages: during the cutting of the film by the cutter, the material picking rod gradually approaches the chuck along the movement of the first sliding seat to pick the films sequentially dropped during the cutting, and after the cutting is completed, the material pushing driving mechanism drives the material pushing piece to move along the length direction of the material picking rod to push the films on the material picking rod away from the material picking rod. The film cutting device realizes the automation design of the material receiving action and the discharging action during the film cutting, effectively improves the film cutting processing efficiency, and greatly reduces the labor intensity of the operator. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 FIG. 1 is a perspective view of a film cutting device according to an embodiment of the present application;

[0028] Figure 2 FIG. 2 is a front view of the film cutting device according to the embodiment of the present application;

[0029] Figure 3 FIG. 3 is a left view of the film cutting device according to the embodiment of the present application;

[0030] Figure 4 FIG. 4 is a perspective view of the film cutting device according to the embodiment of the present application without a material dropping motion mechanism;

[0031] Figure 5 FIG. 5 is a sectional view of A-A in FIG. 1 (the clamping jaw piece moves up to the position of the tray); Figure 3

[0032] FIG. 6 is a sectional view of A-A in FIG. 1 (the clamping jaw piece moves down to the position of the chuck); Figure 6 Figure 3 FIG. 7 is a perspective view of the film cutting device according to the embodiment of the present application (the cutter is in a cutting state, and the material dropping motion mechanism and other components are omitted);

[0033] Figure 7 FIG. 8 is a left view of the film cutting device according to the embodiment of the present application (the cut film is located on the material picking rod away from the chuck);

[0034] Figure 8

[0035] Figure 9 ​​The left view of the film cutting device of the embodiment of the utility model (the cut film is located on the material taking rod away from the chuck, the upper end of the material falling rod is connected with the material falling end of the material taking rod);

[0036] Figure 10 The left view of the film cutting device of the embodiment of the utility model (the cut film is located on the material falling rod). DETAILED DESCRIPTION

[0037] The utility model will be described further in detail below in combination with the embodiment of the drawings.

[0038] In the description and claims of the utility model, terms indicating directions, such as “front”, “back”, “up”, “down”, “left”, “right”, “side”, “top”, “bottom” and the like, are used to describe various example structural parts and elements of the utility model, but these terms are used herein only for the purpose of convenient description and are determined based on the example orientation shown in the drawings. Since the disclosed embodiments of the utility model can be arranged in different directions, these terms indicating directions are only used for description and should not be regarded as limitation, for example, “up” and “down” are not necessarily limited to the direction opposite or consistent with the direction of gravity.

[0039] Figures 1-10 An upper feeding module of the film cutting device and one preferred embodiment of the film cutting device of the utility model are shown. The film cutting device comprises the upper feeding module, a cutter assembly and a lower feeding module. The upper feeding module comprises a clamping seat, a material disc 13, a clamping jaw assembly and an upper feeding assembly. The clamping seat comprises a seat body 10 and a chuck 11 arranged on the seat body 10 and rotated by a rotary driving mechanism. The chuck 11 has a clamping opening 110 for one end of the film to be cut to be inserted therein. The rotary driving mechanism generally adopts a motor, and the output shaft of the motor is connected in transmission with the chuck 11, so as to drive the film 7 clamped on the chuck 11 to rotate around its own axis. The clamping opening 110 of the chuck 11 is horizontally oriented, that is, the film 7 clamped on the chuck 11 extends horizontally.

[0040] Referring to Figure 4 The material disc 13 is arranged on the seat body 10, specifically above the position where the chuck 11 is located. Specifically, the material disc 13 is arranged obliquely, and the outlet of the material disc 13 is located at the lowest position. The film to be cut 7 can be arranged in sequence on the material disc 13 and rolled to move out of the outlet of the material disc 13 under the action of its own gravity.

[0041] Referring to Figure 5 and Figure 6The clamping jaw assembly is also arranged on the seat body 10, which comprises a clamping jaw moving mechanism 2 and a clamping jaw piece 20. The clamping jaw moving mechanism 2 can be a pneumatic cylinder, and the lower end of the telescopic rod of the cylinder is provided with a connecting seat. The clamping jaw piece 20 is arranged on a connecting frame 31. When the clamping jaw moving mechanism 2 is in action, the connecting frame 31 and the clamping jaw piece 20 arranged thereon can move up and down between the position of the tray 13 and the position of the chuck 11. Specifically, the clamping jaw piece 20 has a clamping groove 200 which is open at the side and extends in the horizontal direction.

[0042] Continuing to refer to Figure 4 The feeding assembly comprises a feeding moving mechanism 30 and a feeding push rod 32. The feeding push rod 32 can be driven by the feeding moving mechanism 30 to move along the direction parallel to the axis of the film 7, so as to push the film 7 placed in the clamping groove 200 into the clamping opening 110 of the chuck 11 in the axial direction.

[0043] In order to facilitate the film 7 in the tray 13 to enter the clamping groove 200 of the clamping jaw piece 20, when the clamping jaw piece 20 moves to the position of the tray 13, the side opening of the clamping groove 200 is directly opposite to the outlet of the tray 13 in the horizontal direction. When the clamping jaw piece 20 moves up to the set position, the side opening of the clamping groove 200 of the clamping jaw piece 20 is directly opposite to the outlet of the tray 13 in the horizontal direction. Since the tray 13 is arranged in an inclined manner, the film 7 in the tray 13 can automatically roll into the clamping groove 200 of the clamping jaw piece 20 under the action of its own gravity. More specifically, the clamping jaw piece 20 comprises an upper baffle 21, a connecting plate 22 extending downward from the upper baffle 21, a lower baffle 23 rotatably arranged at the bottom of the connecting plate 22, and a torsional spring (not shown). The side edges of the lower baffle 23 are connected to the outside of the bottom of the connecting plate 22 through horizontally extending pin shafts, wherein the torsional spring can be sleeved on the pin shafts, one end of which abuts against the connecting plate 22 and the other end of which abuts against the lower baffle 23. Under the elastic force of the torsional spring, the lower baffle 23 always has a tendency to deflect towards the side close to the upper baffle 21. Due to the limiting action of the edge of the bottom of the connecting plate 22, the limit position of the upward deflection of the lower baffle 23 under the action of the torsional spring is basically horizontally extending. The upper baffle 21, the connecting plate 22 and the lower baffle 23 jointly define the clamping groove 200 which is open at the side. After the film 7 is properly inserted into the clamping opening 110 of the chuck 11 and is clamped and fixed by the chuck 11, the clamping jaw moving mechanism 2 can directly drive the clamping jaw piece 20 to move upward. Since the film 7 is in a fixed state, the lower baffle 23 of the clamping jaw piece 20 will be deflected downward to make the clamping jaw piece 20 move upward smoothly, and the lower baffle 23 of the clamping jaw piece will pass over the film 7 and then automatically deflect to reset to the initial position under the elastic force of the torsional spring. Details are shown in Figure 6 .

[0044] The feeding assembly is also arranged on the connecting frame 31 and moves up and down with the connecting frame 31, that is, the feeding assembly moves up and down synchronously with the clamping jaw 20. The feeding assembly comprises a feeding movement mechanism 30 and a feeding push rod 32. The feeding movement mechanism 30 also adopts a cylinder, and the cylinder body is arranged on the connecting frame 31, and the extension direction of the cylinder is horizontal, which is consistent with the axial direction of the film roll 7 placed in the clamping groove 200. The feeding push rod 32 can move along the axial direction of the film roll 7 under the driving of the feeding movement mechanism 30, so as to push the film roll 7 placed in the clamping groove 200 into the clamping opening 110 of the chuck 11 along the axial direction. After the feeding movement is completed, the feeding movement mechanism 30 drives the feeding push rod 32 to move back to the initial position, and then moves up with the connecting frame 31 together with the clamping jaw 20.

[0045] Referring to Figure 1 , one side of the base body 10 is provided with a workbench 12, and the cutter assembly and part of the discharging module are arranged on the workbench 12. The discharging module comprises a picking assembly, a pushing assembly, a discharging rod 6 and a discharging movement mechanism.

[0046] The picking assembly comprises a first sliding seat 41 which can reciprocate along a first direction under the driving of a longitudinal driving mechanism 14 (which can adopt a cylinder) and a picking rod 42 arranged on the first sliding seat 41. The extension direction of the picking rod 42 and the first direction are both parallel to the axial direction of the film roll 7 clamped on the chuck 11. The first sliding seat 41 is slidably arranged on the workbench 12 through a sliding rail assembly. A third sliding seat 31 is further arranged on the first sliding seat 41. The cutter assembly is arranged on the third sliding seat 31 and specifically comprises a cutter 3. The cutter head 30 of the cutter 3 faces the film roll 7. When the third sliding seat 31 moves in the transverse direction under the driving of an external driving mechanism (such as a cylinder), the cutter 3 can feed in the radial direction to cut the film roll 7 into film pieces 70. After each cutting is completed, the third sliding seat 31 reversely resets with the cutter 3. Then, the first sliding seat 41 moves a certain distance (that is, the thickness of one film piece 70) along the axial direction of the film roll 7 clamped on the chuck 11 under the driving of the longitudinal driving mechanism 14. The cutter 3 continues the cutting action of the next film piece 70 under the driving of the third sliding seat 31.

[0047] Referring to Figure 7 , the cutter head 30 of the cutter 3 has a cutting edge with a gradually decreasing thickness. The cutter head 30 of the cutter 3 adopts the cutting edge with a gradually decreasing thickness, which can not only ensure the cutting effect of the film piece 70, but also increase the strength of the cutter 3 and prolong the service life of the cutter 3.

[0048] When the cutter 3 cuts the film 70 initially, the pickup rod 42 is arranged in the inner hole of the film 7. Since the pickup rod 42 is also arranged on the first slide 41, the pickup rod 42 can move synchronously with the first slide 41 together with the cutter 3, so that the cutter 3 cuts the film 70 sequentially and the film 70 can be picked up by the pickup rod 42.

[0049] Continuing to refer to Figure 1 , the pushing assembly is also arranged on the first slide 41, which includes a pushing driving mechanism 5 and a pushing member 51, the pushing member 51 is arranged adjacent to the pickup rod 42 and can move along the length direction of the pickup rod 42 under the driving of the pushing driving mechanism 5 so as to push the film 70 on the pickup rod 42 away from the pickup rod 42. Generally, the pushing member 51 can adopt the structure of a pushing rod, a pushing lever or a pushing plate, but in order to ensure that the film 70 on the pickup rod 42 can be pushed down smoothly, in the preferred embodiment, the pushing member 51 adopts a plate structure which is perpendicular to the pickup rod 42 and is sleeved outside the pickup rod 42. The pushing driving mechanism 5 also adopts a pneumatic cylinder, and the pushing member 51 is connected to the end of the telescopic rod of the pneumatic cylinder.

[0050] Considering that the initial several films 70 (generally the first three or four films 70) cut from the film 7 have certain defects, in order to separate the above films 70 with defects from the good films 70 to avoid mixing with the good films 70, the pushing member 51 has two pushing actions, namely a first pushing action and a second pushing action, the first pushing action is mainly to push most of the good films 70 except the last several films 70 away from the pickup rod 42, and the moving stroke is relatively large. The second pushing action is performed after the first pushing action is completed, and the purpose is to push the initial several films 70 cut from the film 7 away from the pickup rod 42. Specifically, the end of the pickup rod 42 close to the chuck is a dropping end 421, and a position on the pickup rod 42 adjacent to the dropping end 421 and having a certain distance from the dropping end 421 in the axial direction is marked as a buffer position 422, which will be described in detail Figure 10 . The first pushing action of the pushing member 51 is to move outward from the end of the pickup rod 42 away from the chuck 11 to the buffer position 422, so that most of the good films 70 on the pickup rod 42 are pushed away from the pickup rod 42, and the last several defective films 70 remain at the dropping end 421. The second pushing action of the pushing rod is to move outward from the buffer position 422 of the pickup rod 42 to the position where the dropping end 421 is located or to a position away from the pickup rod 42, so that the last several defective films 70 remaining on the pickup rod 42 at the dropping end 421 can be pushed away from the pickup rod 42 to realize dropping.

[0051] In consideration of the fact that the material frame for collecting the good film 70 and the material frame for collecting the waste film 70 are located at different positions, the first sliding base 41 is further provided with a second sliding base 52 which is also slidably arranged on the first sliding base 41 through the transversely extending sliding rail assembly. The second sliding base 52 can be driven by a transverse movement mechanism 53 arranged on the first sliding base 41 to reciprocate along the transverse direction between a first material dropping position and a second material dropping position on the first sliding base 41. When the second sliding base 52 moves to the first material dropping position, the pushing member 51 performs the first pushing action as described above. When the second sliding base 52 moves to the second material dropping position, the pushing member 51 performs the second pushing action as described above.

[0052] The outer peripheral wall of the picking rod 42 near one end of the chuck 11 is configured as a taper surface structure 420 which gradually increases in cross-sectional size from the side far away from the chuck 11 to the side close to the chuck 11. The taper surface structure 420 is designed at the end of the picking rod 42 so that the falling process of the film 70 has a certain resistance, which ensures that the good film 70 and the waste film 70 can be better separated, and the last few pieces of waste film 70 can be prevented from being pushed away from the picking rod 42 due to inertia during the first pushing action.

[0053] The film 70 on the picking rod 42 can be directly pushed off after being moved to the set position with the picking rod 42 to achieve the purpose of material dropping. However, due to space layout restrictions, the corresponding collecting frame 8 for collecting the film 70 is generally far away from the picking rod 42. In order to achieve the transfer and dropping of the film 70 on the picking rod 42, see Figures 8-10 The film cutting device of the embodiment further comprises a material receiving and transferring assembly for receiving the film 70 material on the picking rod 42 and transferring the film 70 material to the collecting frame 8. The material receiving and transferring assembly comprises a material dropping rod 6 and a material dropping movement mechanism for driving the material dropping rod 6 to move. The material dropping rod 6 is always arranged in an inclined manner. The material dropping movement mechanism comprises a first clamping assembly, a second clamping assembly and a lifting cylinder 63.

[0054] The first clamping assembly comprises a first clamping jaw 61 and a first clamping cylinder for driving the first clamping jaw 61 to clamp and open. The second clamping assembly comprises a second clamping jaw 62 and a second clamping cylinder for driving the second clamping jaw 62 to clamp and open.

[0055] The lifting cylinder 63 is arranged on the seat body 10, and the power output end of the lifting cylinder 63 is connected with the second clamping assembly and can drive the second clamping assembly to move up and down. The material falling movement mechanism has at least a first action process and a second action process. The first action process is a material receiving process, that is, a process for receiving the good film 70 pushed down from the material picking rod 42. Specifically, the first material clamping jaw 61 releases the upper end of the material falling rod 6, the second material clamping jaw 62 clamps the lower end of the material falling rod 6, and drives the material falling rod 6 to move downward by the lifting cylinder 63. After moving downward to a set position, the upper end of the material falling rod 6 is close to or in contact with the end of the material picking rod 42. Thus, the good film 70 on the material picking rod 42 pushed by the pushing piece 51 is transferred to the material falling rod 6 through the upper end of the material falling rod 6. Since the lower end of the material falling rod 6 is clamped by the second material clamping jaw 62, the good film 70 on the material falling rod 6 is blocked by the second material clamping jaw 62 and stays on the material falling rod 6. The second action process is a material falling process of the good film 70 on the material falling rod 6. Specifically, the lifting cylinder 63 drives the second material clamping jaw 62 and the material falling rod 6 clamped by the second material clamping jaw 62 to move upward, so that the upper end of the material falling rod 6 is moved to the position of the first material clamping jaw 61. After moving to the position, the first material clamping jaw 61 clamps the upper end of the material falling rod 6, and the second material clamping jaw 62 releases the lower end of the material falling rod 6. Thus, each film 70 sleeved on the material falling rod 6 falls from the lower end of the material falling rod 6 and falls into the collecting frame 8 below.

Claims

1. A film cutting device comprising: A clamping seat comprises a seat body (10) and a clamping head (11) provided on the seat body (10) and driven to rotate by a rotary drive mechanism, wherein one end of the film roll (7) to be cut is clamped on the clamping head (11); A cutter assembly includes a cutter (3) which can move in a direction parallel to the axis of a film roll (7) clamped on a chuck (11) and feed in a radial direction to cut the film roll (7) into films (70); It is characterized by also including: A material picking assembly comprises a first slide (41) that can reciprocate along a first direction driven by a longitudinal drive mechanism (14) and a material picking rod (42) provided on the first slide (41), wherein the extending direction of the material picking rod (42) and the first direction are both parallel to the axis of the film roll (7) clamped on the chuck (11), and the material picking rod (42) is inserted into the inner hole of the film roll (7) and can gradually approach the chuck (11) as the first slide (41) moves to pick up the films (70) that fall sequentially during the cutting process; The pushing assembly includes a pushing drive mechanism (5) and a pushing piece (51). The pushing piece (51) is arranged adjacent to the picking rod (42) and can be moved along the length direction of the picking rod (42) under the drive of the pushing drive mechanism (5) to push the film (70) on the picking rod (42) away from the picking rod (42).

2. The film cutting device according to claim 1, characterized in that: The material pushing member (51) is a plate-shaped structure that is perpendicular to the material picking rod (42) and sleeved outside the material picking rod (42).

3. The film cutting device according to claim 1, characterized in that: One end of the picking rod (42) close to the chuck is a blanking end (421), and a position on the picking rod (42) adjacent to the blanking end (421) and having a certain distance from the blanking end (421) in the axial direction is recorded as a buffer position (422); Driven by the pushing drive mechanism (5), the pushing member (51) has at least a first pushing action of moving outward from one end of the picking rod (42) away from the chuck (11) to the buffer position (422) and a second pushing action of moving outward from the buffer position (422) of the picking rod (42) to the position of the blanking end (421) or to a position away from the picking rod (42).

4. The film cutting device according to claim 3, characterized in that: It also includes a second slide (52) arranged on the first slide (41), the picking rod (42) and the pushing assembly are both arranged on the second slide (52), and the second slide (52) can reciprocate between the first blanking position and the second blanking position on the first slide (41) in the transverse direction. When the second slide (52) moves to the first blanking position, the pushing member (51) performs the first pushing action, and when the second slide (52) moves to the second blanking position, the pushing member (51) performs the second pushing action.

5. The film cutting device according to claim 3, characterized in that: The outer peripheral wall of the picking rod (42) at one end close to the chuck (11) is constructed as a conical surface structure (420) whose cross-sectional size gradually increases from the side away from the chuck (11) to the side close to the chuck (11).

6. The film cutting device according to claim 1, characterized in that: It also includes a third slide seat (31) that can be slidably arranged on the first slide seat (41) in a transverse direction, and the cutter assembly is arranged on the third slide seat (31).

7. The film cutting device according to claim 1, characterized in that: The cutter head (30) of the cutter (3) has a cutting edge with a gradually decreasing thickness.

8. The film cutting device according to any one of claims 1 to 7, characterized in that: It also includes a drop rod (6) and a drop motion mechanism for driving the drop rod (6) to move. The drop rod (6) is arranged as a whole in an inclined manner and can be moved to a position where its upper end is close to the end of the picking rod (42) or connected to the end of the picking rod (42) under the drive of the drop motion mechanism, so as to receive the film (70) dropped from the picking rod (42).

9. The film cutting device according to claim 8, characterized in that: The blanking motion mechanism comprises: A first clamping assembly includes a first clamping claw (61) and a first clamping cylinder for driving the first clamping claw (61) to clamp and open; A second clamping assembly includes a second clamping claw (62) and a second clamping cylinder for driving the second clamping claw (62) to clamp and open; A lifting cylinder (63), the power output end of which is connected to the second clamping assembly and can drive the second clamping assembly to move up and down; The blanking motion mechanism has at least a first action process and a second action process, wherein the first action process is configured as follows: the first clamping claw (61) releases the upper end of the blanking rod (6), the second clamping claw (62) clamps the lower end of the blanking rod (6), and is driven downward by the lifting cylinder (63), so that the upper end of the blanking rod (6) is close to the end of the picking rod (42) or the position connected to the end of the picking rod (42) to receive the film (70) dropped from the picking rod (42); The second action process is configured as follows: the lifting cylinder (63) drives the second clamping claw (62) and the blanking rod (6) clamped by the second clamping claw (62) to move upward, so that the upper end of the blanking rod (6) is shifted to the position of the first clamping claw (61), and the first clamping claw (61) clamps the upper end of the blanking rod (6), and the second clamping claw (62) releases the lower end of the blanking rod (6), so that the films (70) mounted on the blanking rod (6) fall from the lower end of the blanking rod (6).

10. The film cutting device according to claim 1, characterized in that: The longitudinal drive mechanism (14) and the material pushing drive mechanism (5) are both cylinders.

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