Full-automatic film cutting machine

Abstract

The utility model relates to a full-automatic film cutting machine, which comprises a clamping seat, a cutting mechanism and a cutting mechanism, the clamping seat comprises a seat body and a chuck driven by a rotary driving mechanism to rotate, and a film roll to be cut is clamped on the chuck; the slicing knife can move in the direction parallel to the axis of the film roll and cut the film roll into films in the radial direction; the device further comprises a material pulling device, the material pulling device comprises a material pulling driving mechanism and a clamping jaw, the clamping jaw can be driven by the material pulling driving mechanism to move in a reciprocating mode in the direction parallel to the axis of the film, and the clamping jaw is used for clamping the film and is driven by the material pulling driving mechanism to pull the film out of the chuck by a set length. The film cutting machine adopts a full-automatic film cutting mode, so that the labor intensity of workers is greatly reduced, and the cutting processing efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of piston film processing technology, and in particular to a fully automatic film cutting machine. Background Technology

[0002] The automotive suspension is equipped with shock absorbers connected in parallel with the elastic elements. When the vehicle frame and axle vibrate and relative motion occurs, the piston inside the shock absorber can move up and down. Due to the frequent relative motion between the piston and the shock absorber cylinder, the surface of the piston needs to be coated with a wear-resistant material with low frictional resistance, such as polytetrafluoroethylene (PTFE), to extend its service life. The coating outside the piston body is a relatively thin film, which is formed on the piston body using an overmolding process. For example, Chinese invention patent application CN201810796605.4 discloses a piston overmolding sheet thermoforming device.

[0003] The main operation of existing film cutting machines involves using a cutter to cut a rotating film roll into sheets. The film roll is held in a chuck and rotates under its drive. However, in actual film processing, the film roll needs to be manually pulled out of the chuck to a predetermined length. Then, the outer and inner circumference of the film roll are trimmed using appropriate cutters. After trimming, the film roll is cut into sheets using a cutting tool. Because the film roll needs to be manually pulled out to the required length each time, this semi-automated processing method is relatively labor-intensive and has relatively low cutting efficiency. Furthermore, since the length of film pulled out manually is largely based on experience, there is a possibility that the film roll may be pulled out too long or too short, which is detrimental to accurate cutting and continuous, stable production.

[0004] Therefore, existing film cutting machines still need further improvement. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a fully automatic film cutting machine that effectively reduces the intensity of manual labor and improves the efficiency of film cutting, in light of the current state of the technology.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a fully automatic film cutting machine, comprising:

[0007] A clamping base includes a base body and a chuck that is rotated by a rotary drive mechanism. The chuck is disposed on the base body, and the film roll to be cut is clamped on the chuck.

[0008] A slicing blade that can move in a direction parallel to the film axis and feed radially to cut the film into sheets;

[0009] An outer circle cutting blade that can move in a direction parallel to the film axis to cut and shape the outer circle of the film;

[0010] An inner circle cutting blade that can move in a direction parallel to the film axis to cut and shape the inner circle of the film.

[0011] It also includes a material pulling device, which includes a material pulling drive mechanism and a gripper that can be driven by the material pulling drive mechanism to reciprocate in a direction parallel to the film axis. The gripper is used to hold the film and pull the film out of the gripper by a set length under the drive of the material pulling drive mechanism.

[0012] To facilitate the lateral switching of the various cutting tools and material extraction devices (switching to a position opposite to the film held in the chuck) and longitudinal reciprocating movement, a slide device is also included. This slide device includes a base, a first slide that can be driven by a first drive mechanism to reciprocate longitudinally on the base, and a second slide that can be driven by a second drive mechanism to reciprocate laterally on the first slide. The slicing blade, outer circular cutting blade, inner circular cutting blade, and grippers are all disposed on the second slide and arranged laterally. The lateral direction is perpendicular to the film axis, and the longitudinal direction is parallel to the film axis. It is conceivable that the first slide at the bottom can move laterally, while the second slide on the first slide can move longitudinally.

[0013] To facilitate the installation of the grippers and the opening and closing of the grippers, a first fixed seat is provided on the second slide. The first fixed seat is provided with a clamping cylinder for driving the grippers to open and close. The first driving mechanism constitutes the material pulling driving mechanism.

[0014] To facilitate the timely collection of film falling during cutting, and thus simplify the film unloading process, the following measures are also included:

[0015] The material pickup assembly, disposed on the second slide, includes a material pickup rod. The first end of the material pickup rod is disposed adjacent to the slicing blade, and at least the first end of the material pickup rod extends in the longitudinal direction. As the material pickup rod gradually approaches the chuck in the longitudinal direction along the first slide, the first end of the material pickup rod can extend into the inner hole of the film roll to pick up the film that has been cut and fallen by the slicing blade.

[0016] To prevent the film picked up by the pickup rod from concentrating at the first end of the pickup rod and affecting film collection, the second slide is also provided with a second fixing seat for mounting the slicing blade. The second end of the pickup rod is connected to the second fixing seat, and the pickup rod extends gradually upward from the second end to the first end in a spiral arrangement. This design of the pickup rod allows the film collected at the first end of the pickup rod to fall along the pickup rod and then stack at the bottom, preventing the film from concentrating at the first end of the pickup rod and ensuring that more film can be picked up.

[0017] To facilitate the fixing and disassembly of the material pickup rod, the second end of the material pickup rod is clamped and fixed to the second fixing seat by bolts.

[0018] To facilitate the fixing of the outer and inner circle cutting blades, as an improvement, a third fixing seat is provided on the second slide, and the outer and inner circle cutting blades are both mounted on the third fixing seat and arranged side by side in the transverse direction.

[0019] In order to promptly blow away the waste chips generated during the cutting process of the outer diameter cutting blade, a first air blowing pipe connected to an external air source is also included. The air outlet of the first air blowing pipe is located near the chuck, and the air outlet direction is towards the film exposed on the front side of the chuck.

[0020] In order to promptly blow away the waste debris generated during the cutting process by the inner circle cutting blade, a second air blowing pipe connected to an external air source is also included, and the air outlet of the second air blowing pipe is located near the inner circle cutting blade.

[0021] Compared with existing technologies, the advantages of this invention are as follows: After the film roll held in the chuck is cut in the previous section, it can be pulled outward by the jaws of the pulling device to a corresponding length. Then, the outer and inner circular portions of the film roll are shaped by the outer and inner circular cutting blades. Finally, the shaped film roll is cut into film sheets by the slicing blade until the exposed section of the film roll is cut. Then, the above actions are repeated. This fully automated film cutting method greatly reduces the intensity of manual labor and improves the cutting efficiency. In addition, since the film roll is pulled outward by the pulling device each time, the length of the film roll pulled out is basically fixed, and there will be no situation where the length of the film roll pulled out is too long or too short. Therefore, the cutting accuracy of each cutting cycle of the film roll is guaranteed, and the cutting process can be carried out continuously and stably. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of a fully automatic film cutting machine according to an embodiment of the present utility model;

[0023] Figure 2This is a top view of the fully automatic film cutting machine according to an embodiment of the present invention (the grippers are in the state of holding the film roll);

[0024] Figure 3 This is a top view of the fully automatic film cutting machine according to an embodiment of the present invention (the outer circular cutting blade is positioned opposite the film roll);

[0025] Figure 4 This is a top view of the fully automatic film cutting machine according to an embodiment of the present invention (the inner circle cutting blade is positioned opposite the film roll);

[0026] Figure 5 This is a top view of the fully automatic film cutting machine according to an embodiment of the present invention (the slicing blade is positioned opposite the film roll). Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0028] In the specification and claims of this utility model, terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," are used to describe various exemplary structural parts and elements of this utility model. However, the use of these terms is merely for the purpose of explanation and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0029] Figures 1-5 A preferred embodiment of the fully automatic cutting device of this utility model is shown. The fully automatic film cutting machine includes a clamping base, a material pulling device, a slide table device, a slicing blade 21, a material picking assembly, an outer circular cutting blade 22, an inner circular cutting blade 23, and an air blowing pipe assembly.

[0030] See Figure 1 The clamping base includes a base body 11 and a chuck 12 disposed on the base body 11. The film roll a to be cut can be clamped on and removed from the chuck 12. After being clamped on the chuck 12, the film roll a is held in a horizontally extended state. The chuck 12 can be a hydraulically driven chuck or a pneumatically driven chuck, as is available in the prior art. The base body 11 is also provided with a rotary drive mechanism, which can use an electric motor, hydraulic motor, or the like as a drive source to drive the chuck 12 and the film roll a on the chuck 12 to rotate.

[0031] The slide assembly is located on one side of the clamping base, specifically on the side where the chuck 12 is located. The slide assembly includes a base 41, a first slide 42, and a second slide 43, arranged sequentially from bottom to top. The first slide 42 is slidably mounted on the base 41 longitudinally and can be driven by a first drive mechanism to reciprocate relative to the base 41. A linear guide rail assembly can be used to achieve relative sliding between the first slide 42 and the base 41. Similarly, the second slide 43 is slidably mounted on the first slide 42 laterally and can be driven by a second drive mechanism to reciprocate relative to the first slide 42. A linear guide rail assembly can be used to achieve relative sliding between the second slide 43 and the first slide 42. The first and second drive mechanisms can be one of a ball screw drive mechanism, a linear motor drive mechanism, a hydraulic drive mechanism, or a pneumatic drive mechanism.

[0032] The above-mentioned horizontal (e.g.) Figure 2 The X direction in the image is perpendicular to the axis of film a, and the aforementioned longitudinal direction (such as...) Figure 2 The Y-direction in the film is parallel to the axis of film a.

[0033] See also Figure 1 The slicing blade 21, the outer circular cutting blade 22, the inner circular cutting blade 23, and the material pulling device are all mounted on the second slide 43 and arranged in the transverse direction. When the second slide 43 moves transversely, the corresponding slicing blade 21, outer circular cutting blade 22, inner circular cutting blade 23, and material pulling device on the second slide 43 can be aligned sequentially with the position of the film roll a on the chuck 12, thereby realizing the corresponding cutting or material pulling action.

[0034] The material pulling device includes a material pulling drive mechanism and a gripper 311 that can be driven by the material pulling drive mechanism to reciprocate in a direction parallel to the axis of the film roll a. A first fixed seat 31 is provided on the second slide 43, and a clamping cylinder (not shown in the figure) for driving the gripper 311 to open and close is provided on the first fixed seat 31. The material pulling drive mechanism for driving the gripper 311 to move can be an independent linear drive mechanism (i.e., provided on the second slide 43). The clamping cylinder and the gripper 311 are driven to move longitudinally by the linear drive mechanism. However, in order to reduce the number of drive mechanisms and save costs, the first drive mechanism can also be used to drive the first slide 42 to move longitudinally. When the first slide 42 moves, the second slide 43 and the gripper 311 provided on the second slide 43 will also move longitudinally. Thus, the first drive mechanism constitutes the above-mentioned material pulling drive mechanism. When it is necessary to pull the film roll a outward, the first drive mechanism is activated, which drives the second slide 43 and the gripper 311 on the second slide 43 to approach the chuck 12. Then, the gripper 311 clamps the end of the film roll a under the drive of the clamping cylinder. Then, the first drive mechanism is activated again, which drives the second slide 43 and the gripper 311 on the second slide 43 to move away from the chuck 12, thereby pulling the film roll a outward from the chuck 12 by a set length.

[0035] The second slide 43 is provided with a third fixed seat 33, on which the aforementioned outer circle cutting blade 22 and inner circle cutting blade 23 are both fixed and arranged side by side in the transverse direction. The outer circle cutting blade 22 can act on the outer peripheral wall of the film a. Under the drive of the first drive mechanism, the second slide 43 and the outer circle cutting blade 22 on the second slide 43 can move longitudinally (that is, in a direction parallel to the axis of the film a held in the chuck 12), thereby cutting and shaping the outer circle of the film a (the chuck 12 used to hold the film a rotates under the drive of the rotary drive mechanism). Similarly, the inner circle cutting blade 23 can extend into the inner hole of the film roll a and act on the inner peripheral wall of the film roll a. Under the drive of the first drive mechanism, the second slide table 43 and the outer and inner circle cutting blades 23 on the second slide table 43 can move longitudinally (that is, in a direction parallel to the axis of the film roll a held in the chuck 12), thereby cutting and shaping the inner circle of the film roll a (the chuck 12 used to hold the film roll a rotates under the drive of the rotary drive mechanism). In order to promptly blow away the waste chips generated during the cutting process of the outer circle cutting blade 22 and the inner circle cutting blade 23, an air blowing pipe assembly connected to an external air source is also included. The air blowing pipe assembly includes a first air blowing pipe 51 and a second air blowing pipe 52. The air outlet of the first air blowing pipe 51 is located near the chuck 12, and the air outlet direction is towards the film roll a exposed on the front side of the chuck 12. The air outlet of the second air blowing pipe 52 is located near the inner circle cutting blade 23, specifically it can be fixed on the third fixing seat 33. The first air pipe 51 and the second air pipe 52 can be in a state of continuous air output, or they can be controlled by a solenoid valve to output air only during the outer or inner circle shaping process of film a.

[0036] The second slide 43 is also provided with a second fixed seat 32, and the slicing blade 21 is mounted on the second fixed seat 32. The slicing blade 21 can move longitudinally (parallel to the axis of the film a held on the chuck 12) and feed radially to cut the film a into film sheets. The slicing blade 21 moves longitudinally by moving with the second slide 43 (driven by the first drive mechanism to move the first slide 42 and the second slide 43), while the radial feed action of the slicing blade 21 is achieved by the second drive mechanism driving the second slide 43 to move laterally.

[0037] The material pickup assembly includes a pickup rod 34. The first end of the pickup rod 34 is disposed adjacent to the slicing blade 21, and at least the first end of the pickup rod 34 extends longitudinally. As the pickup rod 34 gradually approaches the chuck 12 longitudinally along the first slide table 42, the first end of the pickup rod 34 can extend into the inner hole of the film roll a to pick up the film cut and falling by the slicing blade 21. The second end of the pickup rod 34 is connected to a second fixing base 32. Specifically, the second end of the pickup rod 34 is clamped and fixed to the second fixing base 32 by bolts 35. The use of bolts 35 facilitates the fixing and disassembly of the pickup rod 34. See also... Figure 1 The pickup rod 34 extends gradually upward from the second end to the first end and is arranged in a spiral shape. This spiral structure design allows the film collected at the first end of the pickup rod 34 to fall down along the pickup rod 34 and be stacked at the bottom, avoiding the film from being concentrated at the first end of the pickup rod 34 and ensuring that the pickup rod 34 can pick up more film.

[0038] The working process of the fully automatic film cutting machine in this embodiment is as follows:

[0039] See Figure 2 and Figure 5After the previous section is cut, the film roll a held in the chuck 12 can be pulled outward by the claws 311 of the material pulling device to a certain length. The material pulling action is as follows: the first drive mechanism is activated, driving the second slide 43 and the claws 311 on the second slide 43 to approach the chuck 12. After moving into position, the claws 311 clamp the end of the film roll a under the drive of the clamping cylinder. Then, the first drive mechanism is activated again, driving the second slide 43 and the claws 311 on the second slide 43 to move away from the chuck 12, thereby pulling the film roll a outward from the chuck 12 to a set length. Then, the second drive mechanism drives the second slide 43 to move laterally, so that the outer circle cutting blade 22 on the third fixed seat 33 is opposite to the film roll a on the chuck 12. The first drive mechanism is activated, driving the second slide 43 and the outer circle cutting blade 22 on the second slide 43 to move longitudinally closer to the chuck 12 and act on the outer peripheral wall of the film roll a (in a rotating state) to achieve the shaping and correction of the outer circle part of the film roll a. During or after the cutting and shaping of the outer circle of the film roll a, the first air blowing pipe 51 blows the waste chips generated during the cutting process downward. After the outer circle of film a is cut and shaped, the outer circle cutting blade 22 on the second slide 43 returns to its original position with the first slide 42 under the drive of the first drive mechanism. Then, the second drive mechanism drives the second slide 43 to move laterally, so that the inner circle cutting blade 23 on the third fixed seat 33 is opposite to film a on the chuck 12. The first drive mechanism then actuates again, driving the second slide 43 and the inner circle cutting blade 23 on the second slide 43 to move longitudinally closer to the chuck 12 and act on the inner circumferential wall of film a (in a rotating state) to achieve the shaping and correction of the inner circle portion of film a. During or after the inner circle cutting and shaping of film a, the second air pipe 52 blows the waste debris generated during the cutting process downwards. After the inner circle cutting and shaping of film a is completed, the inner circle cutting blade 23 on the second slide 43 returns to its original position with the first slide 42 under the drive of the first drive mechanism. Then, the second drive mechanism drives the second slide 43 to move laterally, so that the inner circle cutting blade 23 on the third fixed seat 33 is opposite to the film roll a on the chuck 12. The first drive mechanism then actuates again, driving the second slide 43 and the slicing blade 21 on the second slide 43 to gradually approach the chuck 12 longitudinally. After moving a set distance longitudinally (the moving distance is the thickness of one film), the second drive mechanism drives the second slide 43 and the slicing blade 21 to feed laterally, thereby cutting the film roll a into film sheets. The cut film sheets are picked up by the pick-up bar 34. After the previous film sheet is cut, the second drive mechanism drives the lateral reset to cut the next film sheet, until the exposed section of the film roll a is cut. Then the above actions of pulling, outer circle shaping, inner circle shaping and slicing are repeated. This fully automated film cutting method in this embodiment greatly reduces the intensity of manual labor and improves the cutting efficiency.Furthermore, since the film roll a is pulled out each time by the material pulling device, the length of film roll a pulled out is basically fixed, and there will be no situation where the length of film roll a pulled out is too long or too short. Therefore, the cutting accuracy of film roll a in each cutting cycle is guaranteed, and the cutting process can be carried out continuously and stably.

Claims

1. A full-automatic film cutting machine, comprising: a clamping seat, including a seat body (11) and a chuck (12) rotated by a rotating driving mechanism, the chuck (12) being arranged on the seat body (11), and a film (a) to be cut being clamped on the chuck (12); a slice cutter (21) capable of moving in a direction parallel to an axis of the film (a) and feeding radially to cut the film (a) into film pieces; an outer circle cutting cutter (22) capable of moving in a direction parallel to the axis of the film (a) to cut and shape an outer circle of the film (a); and an inner circle cutting cutter (23) capable of moving in a direction parallel to the axis of the film (a) to cut and shape an inner circle of the film (a); characterized in that the machine further comprises a material pulling device, including a material pulling driving mechanism and a clamping jaw (311) capable of reciprocating in a direction parallel to the axis of the film (a) driven by the material pulling driving mechanism, the clamping jaw (311) being used to clamp the film (a) and pull the film (a) out of the chuck (12) by a set length under the driving of the material pulling driving mechanism. The machine further comprises a sliding table device, including a base (41), a first sliding table (42) capable of reciprocating in a longitudinal direction and arranged on the base (41) driven by a first driving mechanism, and a second sliding table (43) capable of reciprocating in a transverse direction and arranged on the first sliding table (42) driven by a second driving mechanism, the slice cutter (21), the outer circle cutting cutter (22), the inner circle cutting cutter (23) and the clamping jaw (311) being arranged on the second sliding table (43) and arranged in the transverse direction, the transverse direction being perpendicular to the axis of the film (a), and the longitudinal direction being parallel to the axis of the film (a). The machine further comprises: a first fixing seat (31) arranged on the second sliding table (43), the first fixing seat (31) being provided with a clamping cylinder used to drive the clamping jaw (311) to open and close, and the first driving mechanism constituting the material pulling driving mechanism. The machine further comprises: a material picking assembly arranged on the second sliding table (43), including a material picking rod (34), a first end of the material picking rod (34) being arranged adjacent to the slice cutter (21), and at least the first end of the material picking rod (34) extending in the longitudinal direction, the first end of the material picking rod (34) being capable of extending into a hole of the film (a) to pick up the film pieces cut and fallen by the slice cutter (21) in the process that the material picking rod (34) gradually approaches the chuck (12) along the longitudinal direction with the first sliding table (42).

2. The full-automatic film cutter according to claim 1, characterized in that: A second fixing seat (32) for mounting the slice cutter (21) is further arranged on the second sliding table (43), a second end of the material picking rod (34) being connected to the second fixing seat (32), and the material picking rod (34) gradually extending upward from the second end to the first end and being arranged in a spiral shape.

3. The full-automatic film cutter according to claim 2, characterized in that The second end of the material picking rod (34) is clamped and fixed to the second fixing seat (32) by a bolt (35). ​ 4. The full-automatic film cutter according to claim 2, characterized in that ​ ​ 5. The full-automatic film cutter according to claim 4, characterized in that: ​ 6. The full-automatic film cutter according to claim 5, characterized in that: ​ 7. The full-automatic film cutter according to claim 2, characterized in that: The second slide table (43) is provided with a third fixing base (33), the outer circular cutting knife (22) and the inner circular cutting knife (23) are arranged on the third fixing base (33) and are arranged side by side in the transverse direction.

8. The full-automatic film cutter according to any one of claims 1 to 7, characterized in that: The first blowing pipe (51) connected with the external air source is further included, the air outlet of the first blowing pipe (51) is arranged adjacent to the chuck (12), and the air outlet direction is towards the front side of the exposed film (a) of the chuck (12).

9. The full-automatic film cutter according to any one of claims 1 to 7, characterized in that: The second blowing pipe (52) connected with the external air source is further included, the air outlet of the second blowing pipe (52) is arranged adjacent to the inner circular cutting knife (23).

Images