Film tearing device and system

Abstract

The film tearing device and system are used for removing a protective film covering the surface of a lens frame, the protective film is provided with a through hole, the through hole is located in the lens frame, the film tearing device comprises a film tearing assembly and a film pushing assembly, and the film tearing assembly comprises a locking assembly, a film tearing lifting driving part and a film tearing locking driving part. The film tearing lifting driving piece controls the locking assembly to ascend and descend in the vertical direction, the film tearing locking driving piece controls the locking assembly to be expanded or gathered in the horizontal direction, the locking assembly is provided with an expanding end and an upper supporting face, and the upper supporting face is located on the upper surface of the expanding end. The film pushing assembly comprises a film pushing piece and a film pushing driving piece, the film pushing driving piece controls the film pushing piece to ascend and descend in the vertical direction, the film pushing piece is provided with a lower supporting face, after the expanded end moves towards the direction where the through hole is located, the locking assembly expands in the horizontal direction, and the protective film is located between the upper supporting face and the lower supporting face. And the protective film is clamped and horizontally supported to be separated from the lens frame, so that the film is torn in a narrow space.

Description

Technical Field

[0001] The present application relates to the technical field of AR glasses processing equipment, and more specifically, to a film tearing device and system. Background Art

[0002] As an emerging technological product, AR glasses have received increasing attention in the field of smart hardware in recent years. AR glasses can superimpose virtual information into the real world, providing users with a richer interactive experience. With the continuous advancement of technology, the research and development and application of AR glasses are also developing.

[0003] However, the existing AR glasses production process has the following defects: the surface of the lens frame is covered with a layer of pressure-sensitive adhesive film, hereinafter referred to as PSA film. The PSA film has good viscosity and cushioning properties, and can effectively prevent scratches and wear on the lens frame caused by friction and collision during transportation and storage. During the assembly of AR glasses, it is necessary to remove the PSA film covering the surface of the lens frame. However, due to the small size of the lens frame and the compact production equipment, it is impossible to leave enough space for film tearing. The diameter of the space that the film tearing hand can reach into is less than 8mm, and the film tearing hand tears the film by clamping the PSA film along one side of the lens frame and then moving upward to lift up the PSA film, thereby completing the film tearing. During the film tearing process, the PSA film moves upward in the arc direction, and the space required is large, but the space that the film tearing hand can reach into is small, resulting in the film tearing hand being unable to reach in to complete the film tearing action. Even if the film can be torn off, it is very easy to damage the lens frame in the process of peeling off the PSA film, resulting in a high damage rate of the lens frame. In addition, in the process of peeling off the PSA film, only one side of the lens frame is subjected to force, which will cause uneven force on the lens frame, and easily cause the lens frame to flip over and fall off the material tray and fall onto the table of the processing equipment and be damaged. Moreover, the lens frame is prone to deformation due to unilateral force. Therefore, in order to complete the film tearing and reduce the damage rate of the lens frame, the length of the film tearing arm needs to be increased. However, if the film tearing arm is too long, it will affect the operation of other processing stations, and will also cause the material tray to become larger, affecting the production rhythm of the processing equipment. Summary of the invention

[0004] One purpose of the present application is to provide a film tearing device that can be inserted into a narrow space without increasing the length of the film tearing arm, and can smoothly remove the protective film covering the surface of the lens frame without contacting the lens frame to avoid damage to the lens frame, so as to adapt to various types of production equipment and ensure the process rhythm of the production equipment.

[0005] Another object of the present application is to provide a system that integrates the three key steps of material feeding, positioning and film tearing, thereby realizing full process automation from material feeding, positioning to film tearing, without the need for operators to participate in processing, thereby improving production efficiency and reducing the labor intensity of operators.

[0006] To achieve the above purpose, the technical solution adopted in the present application is: an extended film tearing device, used for removing the protective film covering the surface of the lens frame, the protective film is provided with a through hole, and the through hole is located inside the lens frame, including: a film tearing assembly, the film tearing assembly includes a locking assembly, a film tearing lifting drive and a film tearing locking drive, the film tearing lifting drive is used to control the locking assembly to rise or fall in the vertical direction, the film tearing locking drive is used to control the locking assembly to expand or gather in the horizontal direction, the locking assembly is provided with an enlarged end and an upper supporting surface, the upper supporting surface is located on the upper surface of the enlarged end; a film pushing assembly, the film pushing assembly includes a film pushing member and a film pushing drive, the film pushing drive is used to control the film pushing member to rise or fall in the vertical direction, the film pushing member is provided with a lower supporting surface, when the enlarged end of the locking assembly moves in the direction of the through hole of the protective film, the locking assembly expands in the horizontal direction, the protective film is located between the upper supporting surface of the locking assembly and the lower supporting surface of the film pushing member, so that the protective film is clamped between the locking assembly and the film pushing member, and the protective film is horizontally lifted and separated from the lens frame.

[0007] Preferably, the film pusher surrounds the outer circumference of the locking assembly. When the locking assembly expands circumferentially toward the film pusher, the projection of the upper support surface of the locking assembly along the vertical direction at least partially overlaps with the projection of the lower support surface of the film pusher along the vertical direction, thereby flatly clamping the protective film between the upper support surface and the lower support surface.

[0008] As another preferred embodiment, an avoidance hole is provided in the middle of the film pushing member. When the locking assembly is in a gathered state, the locking assembly can pass through the avoidance hole. When the locking assembly is in an expanded state, the upper supporting surface of the locking assembly moves horizontally toward the outer periphery of the avoidance hole, so that the upper supporting surface of the locking assembly and the lower supporting surface of the film pushing member are arranged relative to each other in the vertical direction.

[0009] Further preferably, the locking assembly includes a plurality of locking members, the ends of each locking member forming an enlarged end and an upper supporting surface, each locking member is further provided with a connecting portion and a driving portion, the connecting portion connects the enlarged end and the driving portion, the upper supporting surface extends radially outward relative to the connecting portion, and the driving portion can be horizontally driven to be connected to the film tearing locking driving member.

[0010] Further preferably, the locking assembly has a central axis, the locking members are arranged around the central axis, and every two locking members are arranged opposite to each other, and the film pushing member surrounds the outer periphery of the connecting portion so that the film pushing member is located between the driving portion and the enlarged end portion.

[0011] Further preferably, the film pushing connecting piece is fixedly connected to the film pushing piece along the extension direction of the central axis, the film pushing piece is provided with a first connecting hole adapted to the film pushing connecting piece, and the film pushing connecting piece is provided with a second connecting hole opening toward the film pushing piece, and by fixedly connecting the first connecting hole and the second connecting hole, the film pushing connecting piece can drive the film pushing piece to move reciprocatingly along the extension direction of the central axis.

[0012] Further preferably, the film tearing locking drive is arranged between the film tearing lifting drive and the film tearing assembly, and a connecting piece is provided at the end of the film tearing locking drive close to the driving part, which fixedly connects the film tearing locking drive and the driving part.

[0013] Further preferably, the film tearing device further includes: a moving component and a supporting tray, the supporting tray is used to place the lens frame, the moving component is used to control the film tearing component to move to the supporting tray, the moving component includes a first moving member and a second moving member, the first moving member is used to drive the film tearing component to reciprocate along a first direction, and the second moving member is used to drive the film tearing component to reciprocate along a second direction, and the first direction and the second direction are perpendicular to the vertical direction.

[0014] The present application also provides a system, including: a lens frame, the surface of the lens frame is covered with a protective film, the protective film is provided with a through hole, and the through hole is located inside the lens frame; a film tearing device and a feeding device, the lens frame is placed on a supporting tray, the feeding device drives the supporting tray to move to the film tearing device, and the film tearing device removes the protective film covering the surface of the lens frame.

[0015] Further preferably, the feeding device includes: a conveying component, the conveying component includes a first limit member, a second limit member and a rotating component, the first limit member and the second limit member are arranged opposite to each other, and a first gap is provided between the first limit member and the second limit member, the rotating component is arranged in the first gap, and drives the supporting tray to move along the first direction from one end of the feeding device to the other end.

[0016] Further preferably, the first limiting member is provided with a first mounting surface, the second limiting member is provided with a second mounting surface opposite to the first mounting surface, and the rotating assembly includes a plurality of rotating wheels, which are symmetrically arranged on the first mounting surface and the second mounting surface, so that the rotating wheels can smoothly drive the supporting tray to move.

[0017] Further preferably, the feeding device also includes: a lifting component, the lifting component is arranged between the first gap, the lifting component includes a lifting drive member and a lifting member, the lifting member and the material support tray abut against each other in the vertical direction, and the lifting drive member drives the lifting member to drive the material support tray to move back and forth in the vertical direction.

[0018] Further preferably, the feeding device also includes: a limit assembly, which is symmetrically fixed on the first limit piece and the second limit piece, and when the lifting assembly lifts the supporting tray in the vertical direction, the supporting tray and the limit assembly abut against each other to limit the lifting height of the supporting tray.

[0019] Further preferably, the limiting assembly includes: a first support arm and a second support arm, there is an angle between the first support arm and the second support arm, the first support arm is evenly provided with mounting holes, so that the limiting assembly is fixed on the side of the first limiting member away from the second limiting member, the second support arm is provided with a protrusion, the protrusion is provided at the end of the second support arm away from the first support arm, and the supporting tray is provided with a positioning hole, when the supporting tray and the limiting assembly are abutted against each other, at least a portion of the protrusion is embedded in the positioning hole.

[0020] Further preferably, the system also includes: a waste film box, wherein the waste film box is provided with a first limit member on a side away from the second limit member, and the moving assembly drives the film tearing assembly to move, so that the film tearing assembly and the waste film box are arranged opposite to each other in the vertical direction, so that the waste film box collects the protective film.

[0021] Compared with the prior art, the beneficial effects of this application are: (1) The protective film is clamped together by the upper supporting surface of the locking component and the lower supporting surface of the film pushing member to form a stable clamping structure, so that the force on the protective film is more uniform. The locking component is provided with an enlarged end to prevent the protective film from falling off during the film tearing process, thereby improving the film tearing efficiency; during the film tearing process, the protective film can be lifted horizontally and separated from the lens frame. The horizontal separation method can avoid the tearing of the protective film due to unilateral tearing and lifting, and can also prevent the film tearing component from scratching the surface of the lens frame, thereby increasing the yield of the film tearing device; (2) The protective film is lifted up horizontally and separated from the lens frame, so that the film tearing assembly only needs to move back and forth in the vertical direction to complete the film tearing process. There is no need to control the film tearing assembly to move diagonally upward and then complete the film tearing by lifting the protective film. This reduces the space required for the film tearing assembly to move, allowing the film tearing device to complete the film tearing in a small space in the horizontal direction without the need to make adjustments to other processing stations. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the partial structure of a film tearing device according to some embodiments of the present application.

[0023] Figure 2 is an exploded view of a film tearing device according to some embodiments of the present application.

[0024] Figure 3 is a cross-sectional view of a film tearing device according to some embodiments of the present application.

[0025] Figure 4A It is a schematic diagram of the cooperation between the locking assembly and the protective film according to some embodiments of the present application.

[0026] Figure 4B It is a schematic diagram of the structure in which the locking assembly drives the peeling of the protective film according to some embodiments of the present application.

[0027] Figure 5 It is a schematic structural diagram of a film pushing member according to some embodiments of the present application.

[0028] Figure 6 It is a schematic diagram of the structure of a locking assembly according to some embodiments of the present application.

[0029] Figure 7 It is a schematic diagram of the action of enlarging the end according to some embodiments of the present application.

[0030] Figure 8 is a schematic diagram of the structure of a mobile component according to some embodiments of the present application.

[0031] Fig.9A It is a schematic diagram of the first action of the film tearing process according to some embodiments of the present application.

[0032] Fig. 9B It is a schematic diagram of the second action of the film tearing process according to some embodiments of the present application.

[0033] Fig. 9C It is a schematic diagram of the third action of the film tearing process according to some embodiments of the present application.

[0034] Fig.9D It is a schematic diagram of the fourth action of the film tearing process according to some embodiments of the present application.

[0035] Fig.9E It is a schematic diagram of the fifth action of the film tearing process according to some embodiments of the present application.

[0036] Fig.9F It is a schematic diagram of the sixth action of the film tearing process according to some embodiments of the present application.

[0037] Figure 9G It is a schematic diagram of the seventh action of the film tearing process according to some embodiments of the present application.

[0038] Figure 9H It is a schematic diagram of the eighth action of the film tearing process according to some embodiments of the present application.

[0039] Fig.10 It is a schematic diagram of the structure of a system according to some embodiments of the present application.

[0040] Fig.11It is a schematic diagram of the partial structure of a system according to some embodiments of the present application.

[0041] Fig.12 It is a schematic diagram of the partial structure of a feeding device according to some embodiments of the present application.

[0042] Fig.13 yes Fig.12 Magnified view of area A in the middle.

[0043] Fig.14A It is a schematic diagram of the first action of the material tray lifting process according to some embodiments of the present application.

[0044] Fig. 14B It is a schematic diagram of the second action of the material tray lifting process according to some embodiments of the present application.

[0045] Fig.15 It is a schematic diagram of the structure of a support tray according to some embodiments of the present application.

[0046] Fig.16 It is a schematic diagram of the structure of the limit assembly according to some embodiments of the present application.

[0047] In the figure: 1, system; 10, film tearing device; 111, locking assembly; 1111, enlarged end; 1112, upper support surface; 1113, locking member; 1113a, connecting portion; 1113b, driving portion; 112, film tearing lifting driving member; 113, film tearing locking driving member; 114, connecting member; 12, film pushing assembly; 121, film pushing member; 1211, lower support surface; 1212, avoidance hole; 1213, first connecting hole; 122, film pushing connecting member; 1221, second connecting hole; 123, film pushing driving member; 13, moving assembly; 131, first moving member ; 132, second movable member; 20, lens frame; 21, protective film; 211, through hole; 22, support tray; 221, positioning hole; 30, feeding device; 31, conveying assembly; 311, first limiting member; 3111, first mounting surface; 311a, first gap; 312, second limiting member; 313, rotating assembly; 32, lifting assembly; 321, lifting drive member; 322, lifting member; 33, limiting assembly; 331, first support arm; 3311, mounting hole; 332, second support arm; 3321, protrusion; 3322, buffer; 40, discard film box. DETAILED DESCRIPTION

[0048] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0049] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific scope of protection of the present application.

[0050] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0051] The terms "including" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0052] Based on the analysis of the problems existing in the above prior art, the present application provides a film tearing device 10, the specific structure of the film tearing device 10 is as follows: Figure 1 As shown, the film peeling device 10 is used to remove the protective film 21 covering the surface of the lens frame 20. Figure 4A As shown, a through hole 211 is provided on the protective film 21, and the through hole 211 is located inside the lens frame 20; the film tearing device 10 includes: a film tearing assembly and a film pushing assembly 12, and the film tearing assembly and the film pushing assembly 12 cooperate with each other in the vertical direction, so as to horizontally support the protective film 21 and complete the film tearing of the lens frame 20.

[0053] In some embodiments, the film tearing assembly includes a locking assembly 111, a film tearing lifting drive 112 and a film tearing locking drive 113. The film tearing lifting drive 112 is used to control the locking assembly 111 to rise or fall in the vertical direction. The film tearing locking drive 113 is used to control the locking assembly 111 to expand or gather in the horizontal direction. The locking assembly 111 is provided with an enlarged end 1111 and an upper support surface 1112, and the upper support surface 1112 is located on the upper surface of the enlarged end 1111; the film pushing assembly 12 includes a film pushing member 121 and a film pushing drive 123. The movable member 123 is used to control the film pushing member 121 to rise or fall in the vertical direction. The film pushing member 121 is provided with a lower supporting surface 1211. When the enlarged end 1111 of the locking assembly 111 moves toward the direction of the through hole 211 of the protective film 21, the locking assembly 111 expands in the horizontal direction. The protective film 21 is located between the upper supporting surface 1112 of the locking assembly 111 and the lower supporting surface 1211 of the film pushing member 121, so that the protective film 21 is clamped between the locking assembly 111 and the film pushing member 121, and the protective film 21 is horizontally lifted to separate it from the lens frame 20.

[0054] Specifically, when the enlarged end portion 1111 is acted upon by the film-tearing locking driving member 113, it can be stretched in the horizontal direction. When the enlarged end portion 1111 is in the stretched state, the width of the enlarged end portion 1111 in the horizontal direction is greater than the diameter of the through hole 211, so that the locking component 111 can drive the protective film 21 to move when it moves. However, in order to ensure that the protective film 21 can be horizontally lifted during the film-tearing process, the area where the protective film 21 is clamped is increased. In addition, a film-pushing component 12 is provided for cooperating with the film-tearing component to tear the film. When the locking component 111 passes through the through hole 211 and is expanded in the horizontal direction, the protective film 21 is located between the upper supporting surface 1112 of the locking component 111 and the lower supporting surface 1211 of the film-pushing component 121, so that the upper supporting surface 1112 and the lower supporting surface 1211 are close to each other, and the protective film 21 is clamped from both sides of the protective film 21, so that the force on the protective film 21 is more balanced during the film-tearing process. Figure 8 As shown, the film tearing lifting drive 112 can drive the film tearing assembly to move back and forth in the vertical direction; when the film tearing lifting drive 112 drives the film tearing assembly to move upward in the vertical direction, the protective film 21 can be lifted up horizontally and slowly, thereby separating from the lens frame 20, thereby preventing the film tearing assembly from exerting excessive force during the film tearing process, causing the lens frame 20 to be subjected to unilateral force and fall onto the equipment table.

[0055] In addition, the film tearing lifting drive member 112 is a servo motor, so as to achieve precise control of the position of the film tearing assembly during lifting. The operator can also adjust the lifting height of the film tearing assembly according to the actual processing situation to meet the production needs.

[0056] In the prior art, Figure 4A As shown, the hole for film tearing is arranged at the peripheral edge of the protective film 21. During the film tearing process, the film tearing hand clamps the edge of the protective film 21 or reaches into the hole at the edge of the protective film 21, and then moves obliquely upward to lift the protective film 21 from the lens frame 20, thereby achieving the purpose of film tearing. During the process of lifting the protective film 21 from the lens frame 20, the movement trajectory of the clamped edge of the protective film 21 is an arc, and the movement trajectory of the film tearing hand is also an arc. It can be known that this film tearing method by lifting takes up a large space in the vertical direction, but the space left for the film tearing hand to tear the film is limited, which makes it difficult for the film tearing hand to get close to the protective film 21, and the edge of the protective film 21 clamped by the film tearing hand is easily touched by the lens The edges of the lens frame 20 contact each other, causing wear on the edges of the lens frame 20. Therefore, the present application improves the method of tearing the film to reduce the space occupied by the film tearing action in the vertical direction. During the film tearing process, the upper support surface 1112 and the lower support surface 1211 jointly clamp the protective film 21, thereby steadily supporting the protective film 21, avoiding contact between the locking assembly 111 and the lens frame 20, preventing wear on the lens frame 20, and ensuring the yield of the lens frame 20. At the same time, the protective film 21 is steadily supported, so that the force on the protective film 21 is more evenly applied, avoiding uneven force on the protective film 21 when it is separated from the lens frame 20, causing the lens frame 20 to deform or fall on the equipment table.

[0057] In some embodiments, the film pusher 121 surrounds the outer circumference of the locking assembly 111. When the locking assembly 111 expands circumferentially in the direction of the film pusher 121, the projection of the upper support surface 1112 of the locking assembly 111 along the vertical direction at least partially overlaps with the projection of the lower support surface 1211 of the film pusher 121 along the vertical direction, thereby flatly clamping the protective film 21 between the upper support surface 1112 and the lower support surface 1211.

[0058] Specifically, if Figure 3As shown, the film pusher 121 is arranged on the peripheral side of the locking component 111, so that the locking component 111 and the film pusher 121 occupy less space in the horizontal direction; when the locking component 111 expands circumferentially toward the film pusher 121, the locking component 111 can drive the protective film 21 to move, and the projection of the upper support surface 1112 of the locking component 111 in the vertical direction and the projection of the lower support surface 1211 of the film pusher 121 in the vertical direction at least partially overlap, so that the upper support surface 1112 and the lower support surface 1211 jointly clamp the protective film 21, thereby stably holding the protective film 21. The upper supporting surface 1112 and the lower supporting surface 1211 are arranged opposite to each other in the vertical direction, and can clamp the two surfaces of the protective film 21. The upper supporting surface 1112 lifts the protective film 21 to peel the protective film 21 from the lens frame 20, and the lower supporting surface 1211 presses the protective film 21 to prevent the protective film 21 from shaking or rotating. The upper supporting surface 1112 and the lower supporting surface 1211 cooperate with each other to clamp the protective film 21 together to complete the film tearing.

[0059] Furthermore, the projection of the upper support surface 1112 of the locking assembly 111 along the vertical direction at least partially overlaps with the projection of the lower support surface 1211 of the film pushing member 121 along the vertical direction, so that the upper support surface 1112 and the lower support surface 1211 can clamp the protective film 21 in the vertical direction, thereby driving the protective film 21 to move along the vertical direction, thereby reducing the space occupied by the film tearing action, and will not affect the normal operation of other processing stations, nor is there a need to optimize other processing stations to adapt to the film tearing device 10.

[0060] In some embodiments, an avoidance hole 1212 is provided in the middle of the film pusher 121. When the locking assembly 111 is in a gathered state, the locking assembly 111 is able to pass through the avoidance hole 1212. When the locking assembly 111 is in an expanded state, the upper support surface 1112 of the locking assembly 111 moves horizontally toward the outer periphery of the avoidance hole 1212, so that the upper support surface 1112 of the locking assembly 111 and the lower support surface 1211 of the film pusher 121 are arranged relative to each other in the vertical direction.

[0061] Specifically, if Figure 5As shown, a avoidance hole 1212 is provided in the middle position of the film pushing member 121, and the avoidance hole 1212 is a through hole. When the locking components 111 are gathered together, the width of the locking components 111 in the horizontal direction is smaller than the diameter of the avoidance hole 1212, so the locking components 111 can pass through the avoidance hole 1212 to prevent the locking components 111 and the film pushing member 121 from interfering with each other in position; after passing through the avoidance hole 1212, the enlarged end 1111 of the locking component 111 expands, so that the upper supporting surface 1112 and the lower supporting surface 1211 are arranged opposite to each other, so that in the process of tearing the film, the upper supporting surface 1112 and the lower supporting surface 1211 can jointly clamp the protective film 21 arranged between the two surfaces in the vertical direction.

[0062] In some embodiments, the locking assembly 111 includes a plurality of locking members 1113, the ends of each locking member 1113 forming an enlarged end 1111 and an upper support surface 1112, each locking member 1113 is further provided with a connecting portion 1113a and a driving portion 1113b, the connecting portion 1113a connects the enlarged end 1111 and the driving portion 1113b, the upper support surface 1112 extends radially outward relative to the connecting portion 1113a, and the driving portion 1113b can be horizontally driven and connected to the film tearing locking driving member 113.

[0063] Specifically, if Figure 6 As shown, the locking assembly 111 is composed of a plurality of locking members 1113, and the ends of the locking members 1113 form an enlarged end 1111 and an upper supporting surface 1112, so that in the process of film tearing, the enlarged end 1111 can limit the downward movement of the protective film 21 in the vertical direction due to the expansion, so as to prevent the protective film 21 from detaching from the locking assembly 111 and prevent the film tearing failure; after the enlarged end 1111 is expanded, the upper supporting surface 1112 and the lower supporting surface 1211 are arranged opposite to each other in the vertical direction, and the upper supporting surface 1112 and the lower supporting surface 1211 are close to each other, so as to clamp the protective film 21 and drive the protective film 21 to move upward in the vertical direction, separate the protective film 21 from the lens frame 20, and complete the film tearing. The film tearing process does not require movement in the horizontal direction, and will not contact with other components to avoid collision.

[0064] In addition, the number of locking pieces 1113 may be 3, 4 or 5. The number of locking pieces 1113 is not limited here and can be set according to actual needs.

[0065] like Figure 6 As shown, the locking member 1113 is provided with a connecting portion 1113a and a driving portion 1113b. The driving portion 1113b is transmission-connected to the film-tearing locking driving member 113. The film-tearing locking driving member 113 drives the locking member 1113 to expand in the horizontal direction, so that the protective film 21 can move synchronously with the locking assembly 111. The film-tearing locking driving member 113 can be a cylinder or a motor.

[0066] In some embodiments, the locking assembly 111 has a central axis, the locking members 1113 are arranged around the central axis, and every two locking members 1113 are arranged opposite to each other, and the film pushing member 121 surrounds the outer periphery of the connecting portion 1113a, so that the film pushing member 121 is located between the driving portion 1113b and the enlarged end 1111.

[0067] Specifically, if Figure 6 As shown, the locking member 1113 is arranged around the central axis of the locking assembly 111, so that when the locking members 1113 are gathered together, less space is occupied in the horizontal direction; the film pushing member 121 surrounds the outer periphery of the connecting portion 1113a, making full use of the vertical space, so that the film pushing member 121 can fit tightly around the connecting portion 1113a, ensuring the compactness of the film tearing device 10, so that the film tearing device 10 can complete the film tearing in a narrow space in the horizontal direction without affecting other processing stations.

[0068] In some embodiments, the film pushing connector 122 is fixedly connected to the film pushing member 121 along the extension direction of the central axis, the film pushing member 121 is provided with a first connection hole 1213 adapted to the film pushing connector 122, and the film pushing connector 122 is provided with a second connection hole 1221 opening toward the film pushing member 121. By fixedly connecting the first connection hole 1213 and the second connection hole 1221, the film pushing connector 122 can drive the film pushing member 121 to move reciprocally along the extension direction of the central axis; Figure 5 As shown, the film pusher 121 is provided with a first connecting hole 1213, and the first connecting hole 1213 is a countersunk hole; Figure 2 The film pushing connecting member 122 shown is provided with a second connecting hole 1221, and the second connecting hole 1221 is arranged toward the film pushing member 121, and the second connecting hole 1221 is a threaded hole with a thread inside, the first connecting hole 1213 and the second connecting hole 1221 overlap with each other, the screw passes through the first connecting hole 1213, and engages with the thread inside the second connecting hole 1221, so that the film pushing member 121 and the film pushing connecting member 122 are detachably connected. The screw connection is convenient for disassembly during maintenance, and the holes for connection are processed on the film pushing member 121 and the film pushing connecting member 122, the processing technology is relatively simple, and the production efficiency is higher.

[0069] Additional information, such as Figure 3 As shown, the film pushing driving member 123 is transmission-connected with the film pushing connecting member 122 , and the film pushing connecting member 122 is connected with the film pushing member 121 via screws, so that the film pushing driving member 123 controls the film pushing member 121 to reciprocate.

[0070] In some embodiments, the film tearing locking drive member 113 is disposed between the film tearing lifting drive member 112 and the film tearing assembly. Figure 2As shown, a connecting piece 114 is provided at the end of the film tearing locking drive 113 close to the driving portion 1113b, and the connecting piece 114 is fixedly connected to the film tearing locking drive 113 and the driving portion 1113b. The film tearing locking drive 113 and the connecting piece 114 are connected by screws, wherein a plurality of connecting pieces 114 are provided, and the driving portion 1113b and the connecting piece 114 are arranged one by one. The driving portion 1113b and the connecting piece 114 are fixedly connected so that the film tearing locking drive 113 can drive the enlarged end 1111 to expand or gather in the horizontal direction.

[0071] Additional information, such as Figure 7 As shown, when expanding, the enlarged ends 1111 move away from each other, and when converging, the enlarged ends 1111 move toward each other.

[0072] In some embodiments, the film tearing device 10 further includes: a moving component 13 and a supporting tray 22, the supporting tray 22 is used to place the lens frame 20, the moving component 13 is used to control the film tearing component to move to the supporting tray 22, the moving component 13 includes a first moving member 131 and a second moving member 132, the first moving member 131 is used to drive the film tearing component to reciprocate along a first direction, and the second moving member 132 is used to drive the film tearing component to reciprocate along a second direction, and the first direction and the second direction are perpendicular to the vertical direction.

[0073] Specifically, if Fig.11 As shown, the film tearing device 10 also includes a moving component 13, and the moving component 13 includes a first moving member 131 and a second moving member 132. The first direction is a direction extending along the horizontal direction under the condition of a top-down perspective, and the first moving member 131 drives the film tearing component to reciprocate along the first direction; the second direction is a direction extending along the vertical direction under the condition of a top-down perspective, and the second moving member 132 drives the film tearing component to reciprocate along the second direction; the first moving member 131 and the second moving member 132 can adjust the position of the film tearing component, and can automatically control the movement of the film tearing component, reducing manual intervention, the first moving member 131 and the second moving member 132 respectively drive the movement in different directions, and the two moving members respectively control different movement directions, which can reduce mutual interference between mechanical parts and improve the stability and reliability of the moving component 13. The moving component 13 is not only applicable to the film tearing device 10, but can also be applied to the film tearing process of other similar products, such as electronic components, optical devices, etc., and has a wider range of applications.

[0074] In addition, the first movable member 131 and the second movable member 132 are servo motors. The servo motors can achieve higher control accuracy through encoders and other sensor elements. By accurately controlling the moving path of the film tearing assembly, the equipment can achieve continuous operation and improve production efficiency.

[0075] Furthermore, two groups of moving components 13 are provided, which are consistent with the number of film tearing components, so that the moving components 13 can simultaneously drive the film tearing components to tear the film, thereby improving the processing efficiency of the film tearing device 10.

[0076] The present application also provides a system 1, which includes: a lens frame 20, a film tearing device 10 and a feeding device 30. The surface of the lens frame 20 is covered with a protective film 21, and the protective film 21 is provided with a through hole 211, and the through hole 211 is located inside the lens frame 20; the lens frame 20 is placed on a supporting tray 22, and the feeding device 30 drives the supporting tray 22 to move to the film tearing device 10, and the film tearing device 10 removes the protective film 21 covering the surface of the lens frame 20.

[0077] Specifically, the system 1 provided by the present application is as follows Fig.10 As shown, the lens frame 20 is covered with a protective film 21, which integrates the three key steps of material feeding, positioning and film tearing, realizes the automation of the whole process from material transportation, positioning to film tearing, reduces manual intervention, improves production efficiency, and reduces the labor intensity of operators; a through hole 211 is provided on the protective film 21, and the through hole 211 is located inside the lens frame 20, thereby providing a clear film tearing positioning point for the film tearing device 10, so that the film tearing device 10 can be accurately positioned to the film tearing position of the lens frame 20 through the through hole 211, thereby reducing positioning errors.

[0078] In some embodiments, the feeding device 30 includes: a conveying component 31, the conveying component 31 includes a first limit member 311, a second limit member 312 and a rotating component 313, the first limit member 311 and the second limit member 312 are arranged opposite to each other, and a first gap 311a is provided between the first limit member 311 and the second limit member 312, and the rotating component 313 is provided in the first gap 311a, driving the supporting tray 22 to move along the first direction from one end of the feeding device 30 to the other end.

[0079] Specifically, if Fig.11 As shown, the conveying component 31 includes a first limit member 311 and a second limit member 312. The first limit member 311 and the second limit member 312 are arranged opposite to each other, and a first gap 311a is provided therebetween, so that the first limit member 311 and the second limit member 312 can limit the material tray 22 to prevent the material tray 22 from shifting in the second direction, thereby ensuring that the material tray 22 always maintains a stable position during the conveying process and reduces the conveying error; at the same time, the first limit member 311 and the second limit member 312 can guide the material tray 22, so that the material tray 22 always remains on a predetermined track during the conveying process, reducing shaking and deviation, thereby improving the stability of the conveying.

[0080] In addition, the first limit member 311 can be moved by the drive of a motor so that the first limit member 311 can be close to the second limit member 312, or away from the second limit member 312, thereby adjusting the width of the first gap 311a in the second direction to accommodate more sizes of trays 22 and increase the scope of application of the conveying assembly 31.

[0081] Furthermore, the rotating component 313 is located in the first gap 311a, is in direct contact with the material tray 22 in the vertical direction, and moves along the first direction, so that the conveying of the material tray 22 is smoother and more controllable, and can achieve precise speed and position control to ensure the reliability of the conveying process. The rotating component 313 can rotate around its own axis to convey the material tray 22, thereby reducing friction during the conveying process and reducing mechanical wear between the rotating component 313 and the material tray 22.

[0082] In some embodiments, the first limiting member 311 is provided with a first mounting surface 3111, the second limiting member 312 is provided with a second mounting surface opposite to the first mounting surface 3111, and the rotating assembly 313 includes a plurality of rotating wheels, which are symmetrically arranged on the first mounting surface 3111 and the second mounting surface, so that the rotating wheels can smoothly drive the material support tray 22 to move.

[0083] Specifically, if Fig.12 As shown, the first limiting member 311 is provided with a first mounting surface 3111; the second limiting member 312 is provided with a second mounting surface, the first mounting surface 3111 and the second mounting surface are arranged opposite to each other in the horizontal direction, and the rotating wheels are symmetrically arranged on the first mounting surface 3111 and the second mounting surface. The symmetrical layout can ensure that the material tray 22 is subjected to uniform driving force during movement, avoid shaking or deviation caused by uneven force on one side, thereby achieving smooth movement and reducing noise during transportation; multiple rotating wheels are arranged, and during transportation, the contact points between the material tray 22 and the rotating component 313 are increased, and the pressure distribution is more uniform, thereby reducing the wear of a single rotating wheel and extending the service life of the rotating wheel and the material tray 22; the symmetrical layout and multi-point contact can reduce the risk of failure caused by mechanical imbalance or local overload, improve the reliability of the feeding device 30, and by adjusting the first gap 311a between the first limiting member 311 and the second limiting member 312 or the gap between the rotating wheels, the feeding device 30 is suitable for more processing equipment. In some embodiments, the feeding device 30 also includes: a lifting component 32, the lifting component 32 is arranged between the first gap 311a, the lifting component 32 includes a lifting drive member 321 and a lifting member 322, the lifting member 322 and the material support tray 22 are abutted against each other in the vertical direction, and the lifting drive member 321 drives the lifting member 322 to drive the material support tray 22 to reciprocate in the vertical direction.

[0084] Specifically, if Fig.13 As shown, the lifting drive member 321 can drive the lifting member 322 in the vertical direction, and the lifting member 322 and the supporting tray 22 abut against each other, thereby controlling the lifting and lowering of the supporting tray 22, ensuring the smooth movement of the supporting tray 22 in the vertical direction, and avoiding material damage caused by shaking or uneven movement. In addition, the supporting tray 22 and the lifting member 322 abut against each other and do not produce relative movement, which greatly reduces the mechanical friction between the two and improves the service life of the lifting member 322 and the supporting tray 22.

[0085] In addition, the lifting drive member 321 is a cylinder. By adjusting the stroke of the cylinder, the lifting height of the multi-support tray 22 can be adjusted, so that the lifting component 32 can be suitable for more processing environments.

[0086] In some embodiments, the feeding device also includes: a limit assembly 33, which is symmetrically fixed on the first limit member 311 and the second limit member 312. When the lifting assembly 32 lifts the supporting tray 22 in the vertical direction, the supporting tray 22 and the limit assembly 33 abut against each other to limit the lifting height of the supporting tray 22.

[0087] Specifically, if Fig.14A As shown, the limiting assembly 33 is symmetrically fixed on the first limiting member 311 and the second limiting member 312, which saves more space. Fig. 14B As shown, when the lifting assembly 32 lifts the supporting tray 22 in the vertical direction, the supporting tray 22 and the limiting assembly 33 abut against each other, thereby limiting the lifting height of the supporting tray 22, thereby setting the lifting position of the supporting tray 22 to prevent the supporting tray 22 from being lifted too high and interfering with other components.

[0088] In some embodiments, the limiting assembly 33 includes: a first support arm 331 and a second support arm 332, there is an angle between the first support arm 331 and the second support arm 332, the first support arm 331 is evenly provided with mounting holes 3311, so that the limiting assembly 33 is fixed on the side of the first limiting member 311 away from the second limiting member 312, the second support arm 332 is provided with a protrusion 3321, the protrusion 3321 is arranged at the end of the second support arm 332 away from the first support arm 331, and the supporting tray 22 is provided with a positioning hole 221. When the supporting tray 22 and the limiting assembly 33 are against each other, at least a portion of the protrusion 3321 is embedded in the positioning hole 221.

[0089] Specifically, if Fig.16As shown, the limiting assembly 33 includes a first support arm 331 and a second support arm 332, the first support arm 331 is connected to the second support arm 332, and there is an angle between the first support arm 331 and the second support arm 332, and the angle is 90°, the mounting holes 3311 are evenly distributed on the first support arm 331, the mounting holes 3311 are through holes or countersunk holes, the limiting assembly 33 is fixed to the first limiting member 311 by screws, and the second support arm 332 is provided with a protrusion 3321, as shown in FIG. Fig.15 As shown, the support tray 22 is provided with positioning holes 221, and the positioning holes 221 are arranged around the support tray 22. The protrusions 3321 cooperate with the positioning holes 221 on the support tray 22. When the support tray 22 and the limiting assembly 33 are against each other in the vertical direction, at least a portion of the protrusions 3321 are embedded in the positioning holes 221, thereby fixing the position of the support tray 22, making the support tray 22 more stable in the vertical and horizontal directions, and avoiding the failure of film tearing caused by the displacement of the support tray 22 due to external force or vibration.

[0090] In addition, the number of the limiting components 33 is consistent with the number of the positioning holes 221, and they are symmetrically fixed on the first limiting member 311 and the second limiting member 312, so that the force on the supporting tray 22 is more uniform during the process of limiting the supporting tray 22.

[0091] In addition, a buffer portion 3322 is provided between the protrusion 3321 and the second support arm 332. The buffer portion 3322 is fixedly connected to the second support arm 332 and the protrusion 3321 respectively, and can play a buffering role during the lifting process of the supporting tray 22. Moreover, the material of the protrusion 3321 is rubber.

[0092] In some embodiments, the system 1 also includes: a discarded film box 40, which is arranged on the side of the first limit member 311 away from the second limit member 312, and the moving component 13 drives the film tearing component to move, so that the film tearing component and the discarded film box 40 are arranged opposite to each other in the vertical direction, so that the discarded film box 40 collects the protective film 21.

[0093] Specifically, if Fig.11 As shown, the discarded film box 40 is fixed on the side of the first limit member 311 away from the second limit member 312; the moving components 13 are arranged in pairs, and the discarded film box 40 is fixed between the moving components 13, and each group of moving components 13 has a discarded film box 40 to cooperate with it, which makes the structure of the system 1 more compact, reduces the space occupied by the system 1 in the horizontal direction, and can also reduce the moving distance of the moving component 13, thereby improving the moving efficiency of the moving component 13; the moving component 13 drives the film tearing component and the discarded film box 40 to be arranged relative to each other in the vertical direction, so that the discarded film box 40 can collect the peeled off protective film 21, and no manual collection is required, which reduces the workload of the operator and makes the system 1 more automated.

[0094] The specific film-tearing process of the film-tearing device 10 is as follows: Figure 9A-9H As shown, first, the film tearing assembly approaches the protective film 21 in the vertical direction. At this time, the enlarged ends 1111 gather together, and the film tearing assembly moves downward in the vertical direction. The enlarged end 1111 passes through the through hole 211, so that the protective film 21 is arranged between the upper support surface 1112 and the lower support surface 1211; then the enlarged end 1111 is stretched out in the horizontal direction. At this time, the width of the enlarged end 1111 in the horizontal direction is greater than the diameter of the through hole 211, so as to prevent the protective film 21 from falling off during the upward movement in the vertical direction, and to increase the area of ​​the protective film 21 being clamped. The large end portion 1111 moves upward, so that the upper supporting surface 1112 and the protective film 21 fit each other, and the film pushing member 121 moves downward, so that the upper supporting surface 1112 and the lower supporting surface 1211 jointly clamp the protective film 21, and the film tearing assembly moves to the film disposal box 40 and is arranged opposite to the film disposal box 40 in the vertical direction, and the film pushing member 121 moves upward, away from the enlarged end portion 1111, and the enlarged end portions 1111 gather together, and the film pushing member 121 moves downward, thereby pushing the protective film 21, separating it from the enlarged end portion 1111, and dropping it into the film disposal box 40 for collection.

[0095] like Fig.11 As shown, the operation process of the system 1 includes: the support tray 22 is based on Fig.11 The moving direction shown in the figure moves on the conveying assembly 31, and the conveying assembly 31 is started. The moving assembly 13 and the lifting assembly 32 are each provided with two groups. When the supporting tray 22 moves to the first group of lifting assemblies 32, the first group of lifting assemblies 32 is lifted upward along the vertical direction, so that the protrusion 3321 of the limiting assembly 33 is embedded in the positioning hole 221 of the supporting tray 22 to prevent the supporting tray 22 from deviating during the film tearing process. The first group of moving assemblies 13 moves to the upper part of the supporting tray 22 to perform the above-mentioned film tearing process, wherein the supporting tray 22 can It is enough to place four lens frames 20, and the supporting tray 22 is divided into C1 area and C2 area. Two lens frames 20 are placed in the C1 area and C2 area respectively, and the first group of moving components 13 only performs the film tearing process on the two lens frames 20 in the C1 area. When the supporting tray 22 moves to the second group of lifting components 32, the second group of lifting components 32 lifts the supporting tray 22 upward, and the second group of moving components 13 moves to the top of the supporting tray 22 to perform the above-mentioned film tearing process. The second group of moving components 13 only performs the film tearing process on the two lens frames 20 in the C2 area.

[0096] Among them, the first group of moving components 13 only executes the film tearing process for the lens frame 20 in the C1 area, and the second group of moving components 13 only executes the film tearing process for the lens frame 20 in the C2 area, which reduces the moving distance of the two groups of moving components 13 and greatly improves the film tearing efficiency of the film tearing components; the supporting tray 22 moves continuously on the conveying component 31, and the film tearing process is completed in turn at two workstations. The continuous processing method reduces the time that the supporting tray 22 stays at the lifting component 32, thereby improving production efficiency.

[0097] In addition, the direction in which the support tray 22 moves can also be Fig.11 The moving direction is opposite to the moving direction shown in , and the moving direction is not limited here.

[0098] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. A film peeling device, used to remove the protective film covering the surface of the lens frame, the protective film is provided with a through hole, the through hole is located inside the lens frame, characterized in that: include: A film-tearing assembly, the film-tearing assembly comprising a locking assembly, a film-tearing lifting drive and a film-tearing locking drive, the film-tearing lifting drive is used to control the locking assembly to rise or fall in the vertical direction, the film-tearing locking drive is used to control the locking assembly to expand or gather in the horizontal direction, the locking assembly is provided with an enlarged end and an upper support surface, the upper support surface is located on the upper surface of the enlarged end; The film pushing assembly comprises a film pushing member and a film pushing driving member, the film pushing driving member is used to control the film pushing member to rise or fall in the vertical direction, the film pushing member is provided with a lower supporting surface, when the enlarged end of the locking assembly moves toward the direction of the through hole of the protective film, the locking assembly expands in the horizontal direction, the protective film is located between the upper supporting surface of the locking assembly and the lower supporting surface of the film pushing member, so that the protective film is clamped between the locking assembly and the film pushing member, and the protective film is lifted horizontally to be separated from the lens frame.

2. The film tearing device according to claim 1, characterized in that: The film pushing member surrounds the outer circumference of the locking assembly. When the locking assembly expands circumferentially toward the film pushing member, the projection of the upper supporting surface of the locking assembly along the vertical direction at least partially overlaps with the projection of the lower supporting surface of the film pushing member along the vertical direction, thereby flatly clamping the protective film between the upper supporting surface and the lower supporting surface.

3. The film tearing device according to claim 2, characterized in that: An avoidance hole is provided in the middle of the film pushing member. When the locking assembly is in a gathered state, the locking assembly can pass through the avoidance hole. When the locking assembly is in an expanded state, the upper supporting surface of the locking assembly moves horizontally toward the outer periphery of the avoidance hole, so that the upper supporting surface of the locking assembly and the lower supporting surface of the film pushing member are arranged relative to each other in the vertical direction.

4. The film tearing device according to claim 3, characterized in that: The locking assembly includes a plurality of locking members, the ends of each of the locking members forming the enlarged end and the upper supporting surface, each of the locking members is further provided with a connecting portion and a driving portion, the connecting portion connecting the enlarged end and the driving portion, the upper supporting surface extending radially outward relative to the connecting portion, and the driving portion being horizontally drivable and connected to the film tearing locking driving member.

5. The film tearing device according to claim 4, characterized in that: The locking assembly has a central axis, the locking members are arranged around the central axis, and every two of the locking members are arranged opposite to each other. The film pushing member surrounds the outer circumference of the connecting portion, so that the film pushing member is located between the driving portion and the enlarged end portion.

6. The film tearing device according to claim 5, characterized in that: The film pushing connecting piece is fixedly connected to the film pushing member along the extension direction of the central axis, the film pushing member is provided with a first connecting hole adapted to the film pushing connecting piece, and the film pushing connecting piece is provided with a second connecting hole opening toward the film pushing member, and the first connecting hole and the second connecting hole are fixedly connected, so that the film pushing connecting piece can drive the film pushing member to move reciprocatingly along the extension direction of the central axis.

7. The film tearing device according to claim 6, characterized in that: The film tearing locking driving member is arranged between the film tearing lifting driving member and the film tearing assembly, and a connecting member is provided at the end of the film tearing locking driving member close to the driving part, and the connecting member is fixedly connected to the film tearing locking driving member and the driving part.

8. The film tearing device according to claim 1, characterized in that: It further includes: a moving component and a supporting tray, the supporting tray is used to place lens frames, the moving component is used to control the film tearing component to move to the supporting tray, the moving component includes a first moving member and a second moving member, the first moving member is used to drive the film tearing component to reciprocate along a first direction, the second moving member is used to drive the film tearing component to reciprocate along a second direction, the first direction and the second direction are perpendicular to the vertical direction.

9. A system, characterized in that: The system comprises: A lens frame, wherein the surface of the lens frame is covered with a protective film, the protective film is provided with a through hole, and the through hole is located inside the lens frame; According to the film tearing device and the feeding device as described in any one of claims 1-8, the lens frame is placed on a supporting tray, the feeding device drives the supporting tray to move to the film tearing device, and the film tearing device removes the protective film covering the surface of the lens frame.

10. The system according to claim 9, characterized in that The feeding device comprises: A conveying assembly, wherein the conveying assembly includes a first limit member, a second limit member and a rotating assembly, wherein the first limit member and the second limit member are arranged opposite to each other, and a first gap is provided between the first limit member and the second limit member, and the rotating assembly is arranged in the first gap to drive the supporting tray to move from one end of the feeding device to the other end along a first direction.

11. The system according to claim 10, characterized in that The first limiting member is provided with a first mounting surface, the second limiting member is provided with a second mounting surface opposite to the first mounting surface, and the rotating assembly includes a plurality of rotating wheels, which are symmetrically arranged on the first mounting surface and the second mounting surface, so that the rotating wheels can smoothly drive the supporting tray to move.

12. The system according to claim 11, characterized in that The feeding device also includes: A lifting component is arranged between the first gaps, and the lifting component includes a lifting drive and a lifting member. The lifting member and the supporting tray abut against each other in the vertical direction, and the lifting drive drives the lifting member to drive the supporting tray to move back and forth in the vertical direction.

13. The system of claim 12, wherein: The feeding device also includes: The limiting assembly is symmetrically fixed on the first limiting member and the second limiting member. When the lifting assembly lifts the supporting tray in the vertical direction, the supporting tray and the limiting assembly abut against each other to limit the lifting height of the supporting tray.

14. The system of claim 13, wherein: The limiting component comprises: A first support arm and a second support arm, an angle being formed between the first support arm and the second support arm, mounting holes being evenly arranged on the first support arm, so that the limiting assembly is fixed on the side of the first limiting member away from the second limiting member, a protrusion being arranged on the second support arm, and the protrusion being arranged at the end of the second supporting arm away from the first support arm, and a positioning hole being arranged on the supporting tray, so that when the supporting tray and the limiting assembly are abutted against each other, at least a portion of the protrusion is embedded in the positioning hole.

15. The system of claim 14, wherein: The system also includes: a film discard box, which is arranged on a side of the first limit member away from the second limit member, and a moving component drives the film tearing component to move, so that the film tearing component and the film discard box are arranged opposite to each other in a vertical direction, so that the film discard box collects the protective film.

Images