Film cutting device

Abstract

The invention provides a film cutting device. The film cutting device comprises a rack, a bearing piece and a cutting unit. The bearing part comprises a bearing surface, the bearing surface is used for bearing a to-be-cut film, and the bearing part is arranged on the rack; the cutting unit comprises a cutting assembly and a first driving part; wherein the cutting assembly comprises a cutter, a cutter mounting seat and an adjusting structure, a containing space is formed in the cutter mounting seat, the cutter is movably arranged in the containing space in the first direction, and the adjusting structure is connected with the cutter and used for driving the cutter to reciprocate in the first direction so as to adjust the length of the portion, stretching out of the containing space, of the cutter; the first driving part is arranged on the rack, connected with the cutting assembly and used for driving the cutting assembly to move towards or away from the bearing part in the first direction. The first direction is the direction perpendicular to the bearing face so that the film cutting device can adapt to the films to be cut of various thicknesses by adjusting the extending length of the cutter, different cutters do not need to be specially arranged for the films of different thicknesses, and the universality and flexibility of the film cutting device are enhanced.

Description

Technical Field

[0001] The present application relates to the field of semiconductor production technology, and in particular to a film cutting device. Background Art

[0002] In fields such as semiconductor manufacturing, a film cutting device is needed to cut the film covering the wafer, but a set of cutters in an existing film cutting device can only meet one cutting requirement. When faced with different cutting tasks, for example, when cutting films of different thicknesses, different cutters need to be replaced according to the thickness of the film, resulting in poor applicability of the film cutting device. Summary of the invention

[0003] The present application discloses a film cutting device, which can meet various cutting requirements.

[0004] In order to achieve the above-mentioned purpose, the present application discloses a film cutting device, comprising:

[0005] frame;

[0006] A carrier, the carrier comprising a carrier surface, the carrier surface is used to carry the film to be cut, and the carrier is arranged on the frame;

[0007] A cutting unit, the cutting unit comprising a cutting assembly and a first driving member; wherein,

[0008] The cutting assembly includes a cutter, a cutter mounting seat, and an adjustment structure. The cutter mounting seat is provided with an accommodation space. The cutter is movably arranged in the accommodation space along a first direction. The adjustment structure is connected to the cutter and is used to drive the cutter to reciprocate along the first direction to adjust the length of the cutter extending out of the accommodation space.

[0009] The first driving member is disposed on the frame and connected to the cutting assembly, and is used to drive the cutting assembly to move toward or away from the bearing member along the first direction;

[0010] The first direction is a direction perpendicular to the carrying surface.

[0011] Optionally, the adjustment structure includes a shell and an adjustment rod, the shell is fixedly disposed on the cutter mounting seat, the adjustment rod is movably disposed in the shell along the first direction, and one end of the adjustment rod extends into the accommodating space and is magnetically adsorbed and connected to the cutter. When the adjustment rod moves along the first direction, the adjustment rod can drive the cutter to move along the first direction to adjust the length of the cutter extending out of the accommodating space.

[0012] Optionally, the adjustment structure further includes a magnetic member, and along the first direction, the magnetic member is arranged between the adjustment rod and the cutter.

[0013] Optionally, the adjustment structure also includes an elastic reset member arranged in the accommodating space, and along the first direction, one end of the elastic reset member abuts against the bottom wall of the accommodating space, which is used to provide a reset force to the magnetic member along the first direction to drive the cutter to retract.

[0014] Optionally, one end of the cutter is a conical structure, and the top of the conical structure abuts against the magnetic member.

[0015] Optionally, the film cutting device further comprises a pressure regulating structure, and the cutting assembly is connected to the first driving member via the pressure regulating structure;

[0016] The cutting assembly also includes a pressing piece, which is arranged at one end of the cutter mounting seat facing the supporting member. When the cutting assembly moves along the first direction toward the supporting member so that the pressing piece presses on the film to be cut, the pressure adjustment structure is used to adjust the pressure of the pressing piece pressing on the film to be cut.

[0017] Optionally, the pressure regulating structure further comprises a pressure regulating mounting seat and a pressure regulating member, the pressure regulating mounting seat comprises a connecting portion, a mounting portion and a limiting portion which are connected to each other, the connecting portion is connected to the first driving member, the mounting portion is arranged at an end of the connecting portion away from the bearing member along the first direction, and the limiting portion is arranged at an end of the connecting portion facing the bearing member along the first direction;

[0018] The cutting assembly is connected to the pressure regulating structure via a connecting mounting seat, wherein the cutter mounting seat is fixedly connected to the connecting mounting seat;

[0019] The pressure regulating member is a spring plunger, which is installed on the mounting portion and abuts against the end of the connecting mounting seat. When the pressing member presses on the film to be cut, the spring plunger presses on the end to increase the pressure of the pressing member on the film to be cut.

[0020] Optionally, the pressure regulating structure further includes a guide rail extending along the first direction, and a slider slidably matched with the guide rail, and the connecting mounting seat is fixedly connected to the slider.

[0021] Optionally, the film cutting device also includes a rocker arm and a rotating driving member connected to the rocker arm, the rocker arm is rotatably arranged on the frame, the rotation axis of the rocker arm extends along a first direction, the first driving member is connected to the rocker arm, and the rotating driving member can drive the rocker arm to rotate around its rotation axis to drive the cutting assembly to rotate and cut the film to be cut.

[0022] Optionally, the rocker arms include at least two, the two rocker arms have different lengths, and each rocker arm is provided with the cutting unit; or,

[0023] At least two different installation positions are arranged along the extension direction of the rocker arm, wherein the cutting unit is disposed at at least one of the installation positions.

[0024] Optionally, the film cutting device further comprises a feeding roller assembly and a receiving roller assembly, wherein the feeding roller assembly is used to transport the film to be cut to the location of the cutting assembly, and the receiving roller assembly is used to reel up the film cut by the cutting assembly.

[0025] Compared with the prior art, the beneficial effects of this application are:

[0026] When it is necessary to cut the film to be cut, the cutter is driven to move in the first direction by adjusting the structure so that the cutter gradually extends out of the lower surface of the cutter mounting seat. If the film to be cut is thicker, the cutter can be extended longer from the accommodating space by adjusting the structure to ensure that the cutter can completely penetrate the film to be cut; conversely, if the film to be cut is thin, the cutter is extended to a shorter length to avoid excessive extension of the cutter causing unnecessary cutting depth and possible damage to the underlying supporting parts and other components (for example, the film to be cut has stacked tape and release paper, and when cutting the film to be cut, the release paper cannot be cut when the tape is cut). Therefore, for films of different thicknesses, the extension length of the cutter can be accurately adjusted. , so that the cutter just cuts the film to be cut during cutting, avoiding problems such as uneven cutting surface and burrs caused by the cutter extending too long or too short, thereby improving the cutting accuracy and ensuring the quality of the film to be cut after cutting. Reasonable adjustment of the cutter extension length can prevent the cutter from over-cutting when cutting thinner films, reduce unnecessary friction and collision between the cutter and the carrier or other components, reduce the wear of the cutter, and thus extend the service life of the cutter, and reduce the cost and time of frequent replacement of the cutter. In addition, by adjusting the cutter extension length to adapt to various thicknesses of the film to be cut, there is no need to equip different cutters for films of different thicknesses, thereby enhancing the versatility and flexibility of the film cutting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 is a schematic diagram of a film cutting device provided in an embodiment of the present application;

[0029] Figure 2 is a side view of a film cutting device provided in an embodiment of the present application;

[0030] Figure 3 is a schematic diagram of a cutting unit provided in an embodiment of the present application;

[0031] Figure 4 is a schematic diagram of a cutting assembly provided in an embodiment of the present application;

[0032] Figure 5 is a schematic diagram of a cutter provided in an embodiment of the present application;

[0033] Figure 6 It is a schematic diagram of a film cutting device provided in another embodiment of the present application.

[0034] Description of main reference numerals

[0035] 1-Film cutting device;

[0036] 10-film to be cut; 11-tape; 12-release paper;

[0037] 21-discharging roller; 22-first back pressure roller group; 23-first pinch roller group; 24-first redirecting roller group; 25-second redirecting roller group; 26-second back pressure roller group; 27-second pinch roller group; 28-third redirecting roller group;

[0038] 100-rack;

[0039] 200- bearing member;

[0040] 300-cutting unit; 300a-cutting assembly; 310-cutter; 3101-conical structure; 320-cutter mounting seat; 330-pressing member; 300b-first driving member;

[0041] 400-adjustment structure; 410-housing; 420-adjustment rod; 430-elastic reset member; 440-magnetic member;

[0042] 500-flange;

[0043] 600-pressure regulating structure; 610-pressure regulating mounting seat; 6101-connecting part; 6101a-guide rail; 6101b-sliding block; 6102-mounting part; 6103-limiting part; 620-pressure regulating member; 630-connecting mounting seat; 6301-first part; 6302-second part;

[0044] 700- rocker arm;

[0045] 800-rotating drive member;

[0046] 900 - Rotating parts. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0048] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0049] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0050] In addition, the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0051] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components, the specific types and structures of which may be the same or different, and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0052] As mentioned in the background technology, a set of knives in the existing film cutting device can only meet one cutting requirement. When faced with different cutting tasks, for example, when cutting films of different thicknesses, different knives need to be replaced according to the thickness of the film, resulting in poor applicability of the film cutting device.

[0053] In order to solve the above problems, the present application provides a cutting device that can adapt to various thicknesses of films to be cut by adjusting the extended length of the cutter. There is no need to equip different cutters for films of different thicknesses, thereby enhancing the versatility and flexibility of the film cutting device.

[0054] The technical solution of the present application will be further described below in conjunction with specific embodiments and drawings.

[0055] See also Figures 1 to 4 The present embodiment provides a film cutting device 1, comprising: a frame 100, a carrier 200 and a cutting unit 300; the carrier 200 comprises a bearing surface, the bearing surface is used to bear the film 10 to be cut, and the carrier 200 is arranged on the frame 100; the cutting unit 300 comprises a cutting assembly 300a and a first driving member 300b; wherein the cutting assembly 300a comprises a cutter 310, a cutter mounting seat 320 and an adjusting structure 400, wherein the cutter mounting seat 320 has an accommodating space, the cutter 310 is movably arranged in the accommodating space along a first direction, the adjusting structure 400 is connected to the cutter 310, and is used to drive the cutter 310 to reciprocate along the first direction to adjust the length of the cutter 310 extending out of the accommodating space; the first driving member 300b is arranged on the frame 100 and is connected to the cutting assembly 300a, and is used to drive the cutting assembly 300a to move toward or away from the carrier 200 along the first direction; the first direction is a direction perpendicular to the bearing surface.

[0056] The first direction is Figure 2 The direction indicated by arrow Y.

[0057] When it is necessary to cut the film 10 to be cut, the cutter 310 is driven to move in the first direction by adjusting the structure 400 so that the cutter 310 gradually extends out of the lower surface of the cutter mounting seat 320. If the film 10 to be cut is thicker, the cutter 310 can be extended longer from the accommodating space by adjusting the structure 400 to ensure that the cutter 310 can completely penetrate the film 10 to be cut; conversely, if the film 10 to be cut is thinner, the cutter 310 is extended to a shorter length to avoid excessive extension of the cutter 310, resulting in unnecessary cutting depth and possible damage to the underlying support 200 and other components (for example, the film 10 to be cut has stacked tape 11 and release paper 12. When the film 10 to be cut is cut, the release paper 12 cannot be cut when the tape 11 is cut). Therefore, for films of different thicknesses, the cutter can be precisely adjusted. The extended length of 310 ensures that the cutter 310 just cuts through the film 10 to be cut during cutting, avoiding problems such as uneven cutting surface and burrs caused by the cutter 310 extending too long or too short, thereby improving the cutting accuracy and ensuring the quality of the film 10 to be cut after cutting. Reasonable adjustment of the extended length of the cutter 310 can prevent the cutter 310 from over-cutting when cutting thinner films, reduce unnecessary friction and collision between the cutter 310 and the carrier 200 or other components, reduce the degree of wear of the cutter 310, and thus extend the service life of the cutter 310, and reduce the cost and time of frequent replacement of the cutter 310. In addition, by adjusting the extended length of the cutter 310 to adapt to various thicknesses of the film 10 to be cut, there is no need to specially equip different cutters 310 for films of different thicknesses, thereby enhancing the versatility and flexibility of the film cutting device 1.

[0058] In one possible embodiment, see Figure 4 The adjustment structure 400 includes a shell 410 and an adjustment rod 420. The shell 410 is fixedly arranged on the cutter mounting seat 320. The adjustment rod 420 is movably arranged in the shell 410 along a first direction, and one end of the adjustment rod 420 extends into the accommodating space and is magnetically adsorbed and connected to the cutter 310. When the adjustment rod 420 moves along the first direction, the adjustment rod 420 can drive the cutter 310 to move along the first direction to adjust the length of the cutter 310 extending toward the accommodating space.

[0059] Since the adjustment rod 420 and the cutter 310 are connected by magnetic adsorption, this connection method is relatively stable and can effectively transmit motion. The operator only needs to operate the adjustment rod 420, such as manually pushing and pulling or using a simple mechanical device (such as a screw rod, a gear rack, etc. connected to the adjustment rod 420) to control the movement of the adjustment rod 420 along the first direction, so as to adjust the position of the cutter 310. This adjustment method is intuitive and simple.

[0060] In addition, the magnetic adsorption connection method is relatively simple, which reduces the possible failure points caused by the complex connection structure, improves the reliability of the adjustment structure 400, and when the cutter 310 with a large degree of wear needs to be replaced, the cutter 310 can be removed by simply overcoming the magnetic attraction, which is easy to operate.

[0061] In a possible embodiment, the shell 410 and the adjustment rod 420 are matched through a threaded pair. When the adjustment rod 420 is rotated, the threaded pair can convert the rotational movement of the adjustment rod 420 relative to the shell 410 into a linear displacement of the adjustment rod 420 relative to the shell 410, so as to push the cutter 310 to move along the first direction.

[0062] When it is necessary to adjust the extension length of the cutter 310 to adapt to the different thicknesses of the films 10 to be cut, the operator rotates the adjustment rod 420 manually or through a driving device. Due to the action of the threaded pair, the adjustment rod 420 begins to rotate in the housing 410, and the threaded pair converts the rotational motion of the adjustment rod 420 into a linear displacement. As the adjustment rod 420 rotates, the adjustment rod 420 moves linearly relative to the housing 410 along its own axial direction, that is, the first direction. The linear displacement of the adjustment rod 420 is directly transmitted to the cutter 310. Because the adjustment rod 420 and the cutter 310 are magnetically adsorbed, the cutter 310 moves relative to the cutter mounting seat 320 along the first direction with the adjustment rod 420. When the adjustment rod 420 moves upward, the cutter 310 retracts into the cutter mounting seat 320; conversely, when the adjustment rod 420 moves downward, the cutter 310 extends out of the lower surface of the cutter mounting seat 320, thereby achieving the adjustment of the extension length of the cutter 310.

[0063] The thread pair has a precise transmission ratio and can accurately convert the rotational motion of the adjusting rod 420 into a linear displacement, thereby achieving high-precision adjustment of the extension length of the cutter 310. The position of the cutter 310 can be accurately adjusted according to the different thicknesses of the films 10 to be cut to ensure the stability and consistency of the cutting quality. In addition, the position of the cutter 310 can be adjusted by rotating the adjusting rod 420. The operation method is simple and intuitive, which facilitates the quick and accurate completion of the adjustment operation, improves work efficiency, and reduces the difficulty of operation.

[0064] In addition, the thread pair matching structure is relatively simple and has high reliability and stability. During the cutting process, it can withstand a certain cutting force and vibration, keep the adjusted position of the cutter 310 unchanged, ensure the smooth cutting action, and reduce cutting errors or failures caused by changes in the position of the cutter 310.

[0065] Of course, the adjustment structure 400 is not limited to the above-mentioned form. The adjustment structure 400 can also be a hydraulic adjustment structure 400, which is composed of a hydraulic cylinder, a piston, a piston rod and a hydraulic control system. The hydraulic cylinder is fixed on the cutter mounting seat 320, one end of the piston rod is connected to the cutter 310, and the other end is located inside the hydraulic cylinder and connected to the piston. The hydraulic oil is injected or discharged into the hydraulic cylinder through the hydraulic control system to push the piston and the piston rod to move, thereby driving the cutter 310 to move along the first direction, thereby realizing the adjustment of the extension length of the cutter 310.

[0066] In a possible embodiment, the adjustment structure 400 is a differential head.

[0067] The micrometer head has a very high adjustment accuracy and can meet the needs of slight adjustments to the extension length of the cutter 310, so that it can more accurately adapt to the films 10 to be cut of different thicknesses, especially for some thinner films 10 to be cut or films with higher cutting accuracy requirements. It can effectively improve the cutting quality and reduce cutting errors. By reading the scale value on the micrometer head, the operator can directly obtain the change information of the position of the cutter 310 and clearly know how long the cutter 310 is extended or how much it is retracted, making the adjustment process more convenient and accurate, without the need for complex measuring tools or additional measuring steps, reducing the difficulty of operation and improving work efficiency.

[0068] In one possible embodiment, see Figure 4 The adjustment structure 400 further includes a magnetic member 440 . Along the first direction, the magnetic member 440 is disposed between the adjustment rod 420 and the cutter 310 .

[0069] The magnetic member 440 may be fixedly connected to the adjusting rod 420 or abut against the adjusting member, or the adjusting rod 420 is magnetic and is directly connected to the adjusting member 310 by magnetic adsorption, which is not limited here.

[0070] The magnetic member 440 can improve the magnetic field distribution between the adjusting rod 420 and the cutter 310, making it more uniform and stable. When the adjusting rod 420 moves along the first direction, the uniform magnetic field can ensure that the cutter 310 is subjected to a more balanced magnetic force, thereby achieving smoother and more precise movement, which helps to achieve higher precision requirements when adjusting the length of the cutter 310 extending out of the accommodation space.

[0071] In a possible embodiment, the adjustment structure 400 also includes an elastic reset member 430 disposed in the accommodating space, and along the first direction, one end of the elastic reset member 430 abuts against the bottom wall of the accommodating space, which is used to provide a reset force to the magnetic member 440 along the first direction to drive the cutter 310 to retract.

[0072] The elastic return member 430 may be a spring, an elastic rubber member, or any other form of elastic return member 430 , which is not limited here.

[0073] Before the film cutting operation begins, the spring is in a natural or pre-compressed state, exerting an upward restoring force on the cutter 310, so that the cutter 310 remains in a retracted position relative to the lower surface of the cutter mounting seat 320. At this time, the magnetic member 440 and the cutter 310 are mutually attracted to stabilize the cutter 310 in this position to prevent the cutter 310 from moving at will without external force. When cutting is required, the adjustment rod 420 pushes the magnetic member 440 downward. Due to the magnetic attraction between the magnetic member 440 and the cutter 310, the magnetic member 440 drives the cutter 310 to overcome the restoring force of the spring and move downward in the first direction. As the cutter 310 moves downward, the adjustment rod 420 pushes the magnetic member 440 downward. 0 moves downward, the spring is further compressed, and more elastic potential energy is stored until the length of the cutter 310 extending out of the accommodation space matches the thickness of the film 10 to be cut. When it is necessary to reduce the length of the cutter 310 extending out of the accommodation space, the adjusting rod 420 retracts upward, and the elastic potential energy stored in the spring begins to be released, generating an upward restoring force, which is transmitted to the cutter 310 through the magnetic member 440, pushing the cutter 310 to move upward. At the same time, due to the magnetic adsorption effect of the magnetic member 440 and the cutter 310, it is ensured that the cutter 310 can smoothly return to the initial position in the correct direction during the resetting process.

[0074] In the above embodiment, the length of the cutter 310 extending out of the accommodation space can be flexibly adjusted according to the thickness of the film to be cut. For example, for a film 10 to be cut that is stacked with a tape 11 and a release paper 12, the above embodiment can accurately cut the tape 11 without cutting the release paper 12.

[0075] In one possible embodiment, see Figure 3 The housing 410 is mounted on the cutter mounting seat 320 through the flange 500 .

[0076] The connection using the flange 500 can withstand various forces generated by the cutter 310 during the cutting process, such as the axial force when the cutter 310 cuts into the film 10 to be cut, the vibration caused by the cutting action, etc., so that the shell 410 will not easily loosen or move, thereby ensuring the relative position accuracy between the adjustment structure 400 (related components in the shell 410) and the cutter mounting seat 320, thereby ensuring the normal realization of the adjustment function and the stable cutting operation.

[0077] In one possible embodiment, see Figure 4 and Figure 5 One end of the cutter 310 is a conical structure 3101 , and the top of the conical structure 3101 abuts against the magnetic member 440 .

[0078] The top area of ​​the conical structure 3101 is relatively small. When it abuts against the magnetic part 440, the pressure applied by the magnetic part 440 can be concentrated on one point or a smaller area. When the cutter 310 assembly performs circular cutting on the film 10 to be cut, the top of the conical structure 3101 can make the cutter 310 rotate relative to the magnetic part 440, thereby helping the cutter 310 to remain centered during cutting and making the cut ring more regular. Therefore, by providing accurate guiding and centering functions, the conical structure 3101 can effectively reduce the deviation of the cutting path, so that the cutter 310 can move accurately along the circular trajectory, thereby improving the accuracy of the circular cutting and meeting the process requirements for high cutting size and shape accuracy. In addition, precise guiding and centering help the cutter 310 to maintain a stable posture during cutting, avoiding problems such as uneven incisions and burrs caused by shaking or offset of the cutter 310, making the incision smoother and neater, and improving the cutting quality.

[0079] In a possible embodiment, the cutter 310 is a needle-shaped knife. The cutter 310 is a needle-shaped knife. The needle-shaped knife has a small size and a simple structure. When the cutter 310 needs to be replaced, the cutter 310 can be directly pulled out from the accommodating space, which is more convenient to operate and does not require complicated disassembly and installation procedures. The replacement of the cutter 310 can be completed quickly, thereby reducing the downtime of the film cutting device 1 and improving production efficiency.

[0080] In one possible embodiment, see Figure 2 The film cutting device 1 also includes a pressure regulating structure 600, through which the cutting assembly 300a is connected to the first driving member 300b; the cutting assembly 300a also includes a pressing member 330, which is arranged at one end of the cutter mounting seat 320 facing the supporting member 200. When the cutting assembly 300a moves along the first direction toward the supporting member 200 so that the pressing member 330 presses on the film 10 to be cut, the pressure regulating structure 600 is used to adjust the pressure of the pressing member 330 pressing on the film 10 to be cut.

[0081] The pressure regulating structure 600 can accurately adjust the pressing pressure of the top pressing piece 330 according to the characteristics of the film 10 to be cut, such as thickness, hardness, flexibility, etc., so as to ensure the precision and accuracy of the cutting, make the edge of the cut film more neat and smooth, reduce cutting defects, and for some films 10 to be cut that need to be cut into complex shapes, such as circular, arc-shaped or shapes with special corners, the pressure regulating structure 600 can ensure that the top pressing piece 330 always presses the film 10 to be cut with appropriate pressure during the cutting process, avoiding local warping or displacement of the film 10 to be cut due to insufficient pressure when cutting complex shapes, thereby improving the success rate and quality of cutting complex shapes.

[0082] In one possible embodiment, see Figure 2 and Figure 3The pressure regulating structure 600 also includes a pressure regulating mounting seat 610 and a pressure regulating member 620. The pressure regulating mounting seat 610 includes a connecting portion 6101, a mounting portion 6102 and a limiting portion 6103 that are interconnected. The connecting portion 6101 is connected to the first driving member 300b. The mounting portion 6102 is arranged at one end of the connecting portion 6101 away from the supporting member 200 along the first direction. The limiting portion 6103 is arranged at one end of the connecting portion 6101 toward the supporting member 200 along the first direction; the cutting assembly 300a is connected to the pressure regulating structure 600 through the connecting mounting seat 630, wherein the cutter mounting seat 320 is fixedly connected to the connecting mounting seat 630; the pressure regulating member 620 is a spring plunger, which is installed on the mounting portion 6102 and abuts against the end of the connecting mounting seat 630. When the pressing member 330 presses on the film 10 to be cut, the spring plunger presses the end to increase the pressure of the pressing member 330 pressing on the film 10 to be cut.

[0083] When the cutting assembly 300a is in the initial state, the spring plunger only needs to abut against the end of the connecting mounting seat 630. The spring plunger may have downward pressure on the end or may have no pressure, which is not limited here.

[0084] When the cutting operation is started, the first driving member 300b drives the cutting assembly 300a to move along the first direction toward the carrier 200. During this process, the cutting assembly 300a moves downward as a whole. As the cutting assembly 300a continues to move downward, the pressing member 330 gradually contacts the film 10 to be cut. At this time, the pressing member 330 begins to be resisted by the film 10 to be cut. The cutting assembly 300a still has a tendency to move downward due to the continuous driving of the first driving member 300b. This resistance will react on the cutting assembly 300a, causing it to have a slight upward displacement tendency. The cutting assembly 300a is fixedly connected to the connecting mounting seat 630, and the connecting mounting seat 630 also has an upward displacement tendency, which causes the spring of the spring plunger originally abutting against the end of the connecting mounting seat 630 to be compressed, and the elastic force of the spring increases, thereby generating a greater downward push pressure on the connecting mounting seat 630. This additional push pressure is transmitted to the cutting assembly 300a through the connecting mounting seat 630, and finally acts on the pressing piece 330, thereby increasing the pressure of the pressing piece 330 on the film 10 to be cut, so as to better fix the film 10 to be cut for easier cutting.

[0085] During the cutting process, if the thickness of the film 10 to be cut is uneven or the hardness changes, the reaction force on the pressing piece 330 will continue to change. The spring of the spring plunger will adjust its own compression degree in real time according to these changes, and dynamically adjust the pressing pressure on the connecting mounting seat 630 and the pressing piece 330 accordingly, so as to always keep the pressing piece 330 pressing on the film 10 to be cut with appropriate pressure.

[0086] When the cutting operation is completed, the first driving member 300b drives the cutting assembly 300a to move upward in the first direction, away from the supporting member 200. At this time, as the cutting assembly 300a moves upward, the pressing member 330 leaves the film 10 to be cut, the pressure on the spring plunger gradually decreases, and the spring stretches under the action of its own elastic restoring force.

[0087] Therefore, since the spring plunger itself has good elastic properties, during the cutting process, no matter how the local characteristics of the film 10 to be cut change, it can adjust the top pressure on the top pressure piece 330 in real time and continuously based on the elastic deformation law of the spring, so that the top pressure piece 330 always presses on the film 10 to be cut with a relatively stable pressure, which can avoid problems such as uneven cutting surface and inaccurate cutting size caused by fluctuating top pressure, thereby ensuring the stable quality of the cut film.

[0088] In one possible embodiment, see Figure 2 and Figure 3 The connecting mounting seat 630 includes a first part 6301 and a second part 6302 which are perpendicular to each other. The first part 6301 is provided with a mounting hole, and the cutter mounting seat 320 is installed in the mounting hole. The second part 6302 extends along the first direction, and the end of the second part 6302 abuts against the spring plunger.

[0089] The cutter mounting seat 320 is installed in the mounting through hole of the first part 6301 of the connecting mounting seat 630. This embedded fixing method makes the cutter mounting seat 320 tightly connected with the connecting mounting seat 630 to form a stable overall structure. During the cutting process, it can effectively prevent the loosening or relative displacement of various parts of the cutting component 300a due to vibration, external force and other factors, thereby ensuring the structural integrity of the cutting component 300a and helping to improve the stability and accuracy of cutting. When the cutting component 300a moves in the vertical direction and is subjected to the reaction force of the film material, the connecting mounting seat 630 can effectively transmit these forces between the cutting component 300a, the spring plunger and other related components.

[0090] In one possible embodiment, see Figure 2 and Figure 3 The pressure regulating structure 600 further includes a guide rail 6101a extending along a first direction, and a slider 6101b slidably matched with the guide rail 6101a, and a connecting mounting seat 630 is fixedly connected to the slider 6101b.

[0091] The guide rail 6101a may be disposed on the connecting portion 6101, or may be disposed between the mounting portion 6102 and the limiting portion 6103, which is not limited herein.

[0092] The guide rail 6101a extends along the first direction, providing a clear and precise movement path for the slider 6101b and the cutting assembly 300a fixedly connected thereto, so that the movement trajectory of the cutting assembly 300a in the direction perpendicular to the bearing surface always remains in a straight line. During the cutting process, whether it is the gravity of the cutting assembly 300a itself, the force between the top pressure piece 330 and the film 10 to be cut, or the reaction force generated by the pressure regulating structure 600, the cutting assembly 300a may be disturbed by forces in multiple directions, and the sliding cooperation between the slider 6101b and the guide rail 6101a can effectively constrain the movement of the cutting assembly 300a, so that it remains stable under complex force conditions, and will not shake, sway or deviate from the predetermined path, thereby ensuring the stability of the cutting operation and helping to improve the cutting efficiency and quality.

[0093] Furthermore, when the spring plunger is adjusting the pressure of the top pressure piece 330 against the film 10 to be cut, the cutting component 300a needs to have a corresponding small displacement change in the vertical direction to achieve dynamic adjustment of the pressure. The sliding cooperation between the slider 6101b and the guide rail 6101a can well adapt to this displacement requirement, providing smooth and stable movement conditions for the cutting component 300a, ensuring the smooth progress of the pressure adjustment process, so that the spring plunger can more accurately adjust the top pressure in real time according to the characteristics of the film 10 to be cut, thereby improving the reliability and effectiveness of the pressure adjustment.

[0094] In one possible embodiment, see Figure 1 and Figure 6 The film cutting device 1 also includes a rocker arm 700 and a rotating driving member 800 connected to the rocker arm 700. The rocker arm 700 is rotatably arranged on the frame 100. The rotation axis of the rocker arm 700 extends along the first direction. The first driving member 300b is connected to the rocker arm 700. The rotating driving member 800 can drive the rocker arm 700 to rotate around its rotation axis to drive the cutting assembly 300a to rotate and cut the film 10 to be cut.

[0095] When cutting the film with cutting, the cutting assembly 300a moves along the first direction toward the supporting member 200. After the cutter 310 cuts into the film 10 to be cut, the rotary drive member 800 starts to work and drives the rocker arm 700 to rotate around its vertical rotation axis. As the rocker arm 700 rotates, the cutter 310 makes a circular motion around a center point to perform a circular cutting on the film 10 to be cut. When the rocker arm 700 rotates one circle or reaches the set cutting angle range, the rotary drive member 800 stops driving and the rocker arm 700 stops rotating. Through the rotation of the rocker arm 700, the cutting assembly 300a can perform a circular motion cutting with a specific point as the center, thereby conveniently realizing circular cutting.

[0096] In one possible embodiment, see Figure 1The film cutting device 1 also includes a rotating part 900, and the rocker arm 700 is installed on the rotating part 900 to reduce the rotation speed of the rocker arm 700 and increase the torque, so as to achieve precise control of the cutting speed and provide sufficient power for cutting, so as to smoothly transmit power and buffer overload protection of motors and other components.

[0097] In one possible embodiment, see Figure 6 The rocker arm 700 includes at least two rocker arms 700 of different lengths, and each rocker arm 700 is respectively provided with a cutting unit 300; or, at least two different installation positions are arranged along the extension direction of the rocker arm 700, wherein at least one installation position is provided with a cutting unit 300.

[0098] In addition, the rotating member 900 and the rotating driving member 800 are both connected to the frame 100 .

[0099] When the rocker arms 700 include at least two with different lengths, and each rocker arm 700 is provided with a cutting unit 300, the cutting units 300 on the rocker arms 700 with different lengths can be used to simultaneously cut a plurality of circles or rings with different radii on the same film 10 to be cut, thereby satisfying the requirements of some products for the film 10 to be cut to have a plurality of circular features of different sizes.

[0100] When at least two different installation positions are configured along the extension direction of the rocker arm 700, and at least one of the installation positions is provided with a cutting unit 300, the cutting unit 300 can be installed at a suitable installation position on the rocker arm 700 according to the shape and size requirements of the film 10 to be cut. The difference in installation position determines the distance from the cutting unit 300 to the rotation axis of the rocker arm 700, thereby determining the cutting radius. Therefore, by changing the installation position of the cutting unit 300 on the rocker arm 700, the cutting radius can be adjusted quickly and conveniently without replacing complex tools or adjusting the transmission structure of the entire equipment.

[0101] In a possible embodiment, a mounting hole is provided at the mounting position, and the cutter mounting seat 320 is detachably mounted on the mounting hole by a fastener.

[0102] The mounting hole may be a threaded hole, and the fastener may be a bolt that matches therewith, or the mounting hole may be a plain hole, and the fastener may be a pin that matches therewith, which is not limited here.

[0103] When the fastener passes through the cutter mounting base 320 and is screwed into the mounting hole, a tight fit can be achieved between the two, which can effectively limit the displacement and shaking of the cutter mounting base 320 in all directions, and provide a stable installation base for the cutting assembly 300a. For example, during the cutting process, the cutting force will cause the cutting assembly 300a to generate forces in various directions, and the tight fit between the mounting hole and the fastener can ensure that the cutting assembly 300a is firmly fixed on the rocker arm 700, maintaining the cutting accuracy and stability.

[0104] Of course, the installation position is not limited to the form of a mounting hole. For example, the installation position may be provided with a magnetic adsorption portion.

[0105] In a possible embodiment, the cutting assembly 300 a slides on the rocker arm 700 along the extension direction of the rocker arm 700 .

[0106] In this way, the distance between the cutting component 300a and the rotation axis of the rocker arm 700 can be easily changed, thereby achieving the cutting of films 10 to be cut with different radii. Compared with the cutting component 300a in a fixed installation position, this sliding setting does not require complicated modification of the rocker arm 700 or reinstallation of the cutting component 300a. The cutting radius can be quickly switched through a simple sliding operation, which greatly improves the adaptability and flexibility of the equipment for cutting circular or annular films 10 to be cut with different sizes, and meets diverse production needs.

[0107] In a possible embodiment, a vacuum adsorption portion is disposed on the carrier 200 to adsorb and fix the film 10 to be cut on the carrier 200 .

[0108] In one possible embodiment, see Figure 6 The film cutting device 1 also includes a feeding roller assembly and a receiving roller assembly. The feeding roller assembly is used to transport the film 10 to be cut to the position of the cutting assembly 300a, and the receiving roller assembly rewinds the film cut by the cutting assembly 300a.

[0109] Among them, the feeding roller assembly can include a discharge roller 21, a first back pressure roller group 22, a first pinch roller group 23, and a first redirecting roller group 24; the receiving roller assembly can include a first redirecting roller group 25, a second back pressure roller group 26, a second pinch roller group 27 and a third redirecting roller group 28.

[0110] The above embodiments are only used to illustrate the technical solution of the film cutting device of the present application, rather than to limit it; although the film cutting device of the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that: it is still possible to modify the technical solutions recorded in the aforementioned embodiments, or to replace part or all of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the present application.

Claims

1. A film cutting device, characterized in that: include: frame; A carrier, the carrier comprising a carrier surface, the carrier surface is used to carry the film to be cut, and the carrier is arranged on the frame; A cutting unit, the cutting unit comprising a cutting assembly and a first driving member; wherein, The cutting assembly includes a cutter, a cutter mounting seat, and an adjustment structure. The cutter mounting seat is provided with an accommodation space. The cutter is movably arranged in the accommodation space along a first direction. The adjustment structure is connected to the cutter and is used to drive the cutter to reciprocate along the first direction to adjust the length of the cutter extending out of the accommodation space. The first driving member is disposed on the frame and connected to the cutting assembly, and is used to drive the cutting assembly to move toward or away from the bearing member along the first direction; The first direction is a direction perpendicular to the carrying surface.

2. The film cutting device according to claim 1, characterized in that: The adjustment structure includes a shell and an adjustment rod, the shell is fixedly arranged on the cutter mounting seat, the adjustment rod is movably arranged in the shell along the first direction, and one end of the adjustment rod extends into the accommodating space and is magnetically adsorbed and connected to the cutter. When the adjustment rod moves along the first direction, the adjustment rod can drive the cutter to move along the first direction to adjust the length of the cutter extending toward the accommodating space.

3. The film cutting device according to claim 2, characterized in that: The adjustment structure further includes a magnetic member, and along the first direction, the magnetic member is arranged between the adjustment rod and the cutter.

4. The film cutting device according to claim 3, characterized in that: The adjustment structure also includes an elastic reset member arranged in the accommodating space, and along the first direction, one end of the elastic reset member abuts against the bottom wall of the accommodating space, which is used to provide a reset force to the magnetic member along the first direction to drive the cutter to retract.

5. The film cutting device according to claim 3, characterized in that: One end of the cutter is a conical structure, and the top of the conical structure abuts against the magnetic member.

6. The film cutting device according to claim 1, characterized in that: The film cutting device further comprises a pressure regulating structure, and the cutting assembly is connected to the first driving member via the pressure regulating structure; The cutting assembly also includes a pressing piece, which is arranged at one end of the cutter mounting seat facing the supporting member. When the cutting assembly moves along the first direction toward the supporting member so that the pressing piece presses on the film to be cut, the pressure adjustment structure is used to adjust the pressure of the pressing piece pressing on the film to be cut.

7. The film cutting device according to claim 6, characterized in that: The pressure regulating structure further comprises a pressure regulating mounting seat and a pressure regulating member, wherein the pressure regulating mounting seat comprises a connecting portion, a mounting portion and a limiting portion which are connected to each other, wherein the connecting portion is connected to the first driving member, the mounting portion is arranged at an end of the connecting portion away from the bearing member along the first direction, and the limiting portion is arranged at an end of the connecting portion facing the bearing member along the first direction; The cutting assembly is connected to the pressure regulating structure via a connecting mounting seat, wherein the cutter mounting seat is fixedly connected to the connecting mounting seat; The pressure regulating member is a spring plunger, which is installed on the mounting portion and abuts against the end of the connecting mounting seat. When the pressing member presses on the film to be cut, the spring plunger presses on the end to increase the pressure of the pressing member on the film to be cut.

8. The film cutting device according to claim 7, characterized in that: The pressure regulating structure also includes a guide rail extending along the first direction, and a slider slidably matched with the guide rail, and the connecting mounting seat is fixedly connected to the slider.

9. The film cutting device according to claim 1, characterized in that: The film cutting device also includes a rocker arm and a rotating drive member connected to the rocker arm, the rocker arm is rotatably arranged on the frame, the rotation axis of the rocker arm extends along a first direction, the first drive member is connected to the rocker arm, and the rotating drive member can drive the rocker arm to rotate around its rotation axis to drive the cutting assembly to rotate and cut the film to be cut.

10. The film cutting device according to claim 9, characterized in that: The rocker arms include at least two, the two rocker arms have different lengths, and each rocker arm is provided with the cutting unit; or, At least two different installation positions are arranged along the extension direction of the rocker arm, wherein the cutting unit is disposed at at least one of the installation positions.

11. The film cutting device according to claim 1, characterized in that: The film cutting device further comprises a feeding roller assembly and a receiving roller assembly, wherein the feeding roller assembly is used to transport the film to be cut to the location of the cutting assembly, and the receiving roller assembly is used to reel up the film cut by the cutting assembly.

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