Film peeling method and film peeling device

Abstract

The application discloses a film tearing method and a film tearing device. In the film tearing method, a workpiece is first hung in a positioning area, and a first positioning structure and a second positioning structure are driven to approach each other to tightly adhere to a first side surface and a second side surface of the workpiece, so that the posture of the workpiece is pre-adjusted. Then, the hanging state of the workpiece is released, and the first positioning structure and the second positioning structure are driven to move away from each other to release the workpiece, so that the workpiece completely falls into the positioning area. During the process that the workpiece completely falls into the positioning area, the posture of the workpiece may change again. The first positioning structure and the second positioning structure can adjust the posture of the workpiece again by being driven to approach each other again, so that the workpiece can be located in the positioning area in a preset posture, and the film tearing structure can tear the film of the workpiece, thereby improving the film tearing effect of the film tearing structure on the workpiece.

Description

Technical Field

[0001] This invention relates to the field of film peeling technology, and in particular to a film peeling method and film peeling device. Background Technology

[0002] To minimize damage to workpieces during storage and transportation, protective films are often applied to their surfaces. These films need to be removed before use. Common technologies employ a film-removing device to peel off the protective film. After the workpiece is gripped and clamped in a positioning area, a robotic arm picks it up and removes the protective film. However, due to the workpiece's inherent structure, gravity can cause it to deflect before it fully falls into the positioning area, making it difficult to place in the intended position and thus affecting the subsequent film-removing effect. Summary of the Invention

[0003] The purpose of this invention is to at least solve one of the technical problems existing in the prior art. A first aspect of this invention provides a film-removing method, which improves the film-removing effect on workpieces. A second aspect of this invention also provides a film-removing device capable of implementing the film-removing method of the first aspect of this invention.

[0004] According to a first aspect embodiment of the present invention, a film-removing method is provided for removing a protective film from a workpiece, the workpiece including a first side and a second side disposed opposite to each other, and the film-removing method includes the following steps:

[0005] The workpiece is suspended within the positioning area formed by the first positioning structure and the second positioning structure.

[0006] The first positioning structure and the second positioning structure are driven to move closer to each other, so that the first side and the second side are respectively in close contact with the first positioning structure and the second positioning structure.

[0007] Release the workpiece from its suspended state, and drive the first positioning structure and the second positioning structure to move away from each other to release the workpiece, so that the workpiece falls completely into the positioning area.

[0008] The first positioning structure and the second positioning structure are driven to move closer to each other again, so that the first side and the second side are respectively in close contact with the first positioning structure and the second positioning structure.

[0009] The drive-tear film structure tears the film off the workpiece within the positioning area to remove the protective film from the workpiece.

[0010] The film-peeling method of the present invention has at least the following beneficial effects: First, the workpiece is suspended in the positioning area formed by the first positioning structure and the second positioning structure. Then, the first positioning structure and the second positioning structure are driven to move closer to each other so that the first side and the second side are respectively in close contact with the first positioning structure and the second positioning structure. Next, the suspension state of the workpiece is released, and the first positioning structure and the second positioning structure are driven to move away from each other to release the workpiece so that the workpiece falls completely into the positioning area. Immediately afterwards, the first positioning structure and the second positioning structure are driven to move closer to each other again so that the first side and the second side are again in close contact with the first positioning structure and the second positioning structure. Finally, the film-peeling structure is driven to peel the film off the workpiece in the positioning area to remove the protective film on the workpiece. In the film-tearing method of the present invention, the workpiece is first suspended in the positioning area, and the first positioning structure and the second positioning structure are driven to move closer to each other so that they are respectively in close contact with the first side and the second side of the workpiece, thereby pre-adjusting the posture of the workpiece. Then, the suspension state of the workpiece is released, and the first positioning structure and the second positioning structure are driven to move away from each other to release the workpiece so that the workpiece falls completely into the positioning area. During the process of the workpiece falling completely into the positioning area, the posture of the workpiece may change again. By driving the first positioning structure and the second positioning structure to move closer to each other again, the first positioning structure and the second positioning structure can adjust the posture of the workpiece again so that the workpiece can be located in the positioning area in a preset posture, so that the film-tearing structure can tear the film off the workpiece, thereby improving the film-tearing effect of the film-tearing structure on the workpiece.

[0011] According to the first aspect of the present invention, the film-peeling method, which suspends a workpiece within a positioning area formed by a first positioning structure and a second positioning structure, includes the following steps:

[0012] The drive clamping structure clamps the protective film on the workpiece so that the workpiece is in a suspended state;

[0013] The drive clamping structure moves above the positioning area so that the workpiece is suspended within the positioning area.

[0014] According to the first aspect of the present invention, the film-peeling method for releasing the workpiece from its suspended state includes the following steps:

[0015] The drive clamping structure releases the protective film on the workpiece to release the workpiece from its suspended state.

[0016] According to the first aspect of the present invention, the film-tearing method defines two ends on the workpiece along its length as a first end and a second end, respectively, and defines the direction from the first end to the second end as a preset direction. The method drives the film-tearing structure to tear the film off the workpiece within the positioning area, and includes the following steps:

[0017] The drive-tear film structure clamps the protective film on the first end;

[0018] The drive film-tearing structure moves along a preset direction until the protective film is completely detached from the workpiece.

[0019] According to the first aspect of the present invention, the film-tearing method, wherein the length of the workpiece is L1, and the film-tearing structure is driven to move along a preset direction, includes the following steps:

[0020] The drive film-tearing structure moves a preset distance L2 along a preset direction; wherein, the preset distance L2 and the length L1 of the workpiece satisfy the following condition: L2≥2L1.

[0021] According to a second aspect embodiment of the present invention, a film-tearing device includes a positioning component, a clamping component, and a film-tearing component. The positioning component includes a first driving structure, a first positioning structure, and a second positioning structure, with a positioning area formed between the first positioning structure and the second positioning structure. The first driving structure is connected to at least one of the first positioning structure and the second positioning structure and is used to drive the first positioning structure and the second positioning structure to move closer to or further away from each other. The clamping component is disposed on one side of the positioning component and is used to grip a workpiece and suspend the gripped workpiece in the positioning area. The film-tearing component is disposed on one side of the positioning component and includes a second driving structure and a film-tearing structure. The film-tearing structure is used to clamp the protective film on the workpiece located in the positioning area. The second driving structure is connected to the film-tearing structure and is used to drive the film-tearing structure to move so that the protective film clamped by the film-tearing structure is separated from the workpiece.

[0022] According to a second aspect embodiment of the present invention, the first positioning structure includes a first mounting frame and a plurality of first positioning members. The plurality of first positioning members are spaced apart along a preset direction and detachably disposed on the first mounting frame. The first positioning members have a first positioning surface on the side near the second positioning structure, and the first positioning surface is adapted to the first side surface of the workpiece. The second positioning structure includes a second mounting frame and a plurality of second positioning members. The plurality of second positioning members are spaced apart along a preset direction and detachably disposed on the second mounting frame. The second positioning members have a second positioning surface on the side near the first positioning structure, and the second positioning surface is adapted to the second side surface of the workpiece.

[0023] According to a second aspect embodiment of the present invention, the film-tearing device further includes a feeding component, which is disposed on one side of the positioning component and is used to feed the workpiece that has been peeled off in the positioning area.

[0024] According to the second aspect of the present invention, the film-tearing device further includes a film-collecting assembly disposed on one side of the positioning assembly. The film-collecting assembly includes a receiving groove. The second driving structure is capable of driving the film-tearing structure to transport the torn protective film into the receiving groove. The receiving groove is used to receive the protective film torn off the workpiece by the film-tearing assembly.

[0025] According to the second aspect of the present invention, the film-tearing device further includes a vacuum pipe communicating with a receiving tank, the vacuum pipe being used to communicate with an air extraction device.

[0026] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

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

[0028] Figure 1 This is a flowchart of a film-peeling method according to an embodiment of the present invention;

[0029] Figure 2 This is a flowchart illustrating an embodiment of the present invention, showing how a workpiece is suspended within a positioning area formed by a first positioning structure and a second positioning structure.

[0030] Figure 3 This is a flowchart illustrating how a drive-to-tear film structure tears the film off a workpiece within a positioning area, according to an embodiment of the present invention.

[0031] Figure 4 This is a schematic diagram of the structure of a film-tearing device according to an embodiment of the present invention;

[0032] Figure 5 This is a schematic diagram of the positioning component, film-tearing component, and film-collecting component according to an embodiment of the present invention;

[0033] Figure 6 for Figure 4 A schematic diagram of the positioning component of the film-tearing device shown;

[0034] Figure 7 for Figure 6 A partial enlarged view of the structure at point A of the positioning component shown;

[0035] Figure 8 This is a schematic diagram of the structure of the transfer assembly, clamping assembly, and unloading assembly according to an embodiment of the present invention;

[0036] Figure 9 a is a schematic diagram of the state of the workpiece when it is suspended in the positioning area according to an embodiment of the present invention;

[0037] Figure 9 b is a schematic diagram of the state of the workpiece when the first positioning member and the second positioning member perform initial positioning on the workpiece according to an embodiment of the present invention;

[0038] Figure 9 c is a schematic diagram of the state of the workpiece when it is completely placed in the positioning area according to an embodiment of the present invention;

[0039] Figure 9 d is a schematic diagram of the state of the workpiece when the first positioning member and the second positioning member reposition the workpiece according to an embodiment of the present invention;

[0040] Figure 10 a is a schematic diagram of the state of the workpiece before it falls into the positioning area in the prior art;

[0041] Figure 10 b is a schematic diagram of the workpiece's state after the first and second positioning components directly position the workpiece in the prior art.

[0042] Figure label:

[0043] Positioning component 100; first drive structure 110; first positioning structure 120; first mounting bracket 121; first positioning element 122; first positioning surface 122a; second positioning structure 130; second mounting bracket 131; second positioning element 132; second positioning surface 132a;

[0044] Film tearing assembly 200; second drive structure 210; first horizontal transfer module 211; second horizontal transfer module 212; film tearing structure 220;

[0045] Transfer assembly 300; clamping assembly 310; unloading assembly 320;

[0046] Film collection module 400; receiving tank 410; vacuum pipe 420;

[0047] Workpiece 500; First side 501; Second side 502; Protective film 510. Detailed Implementation

[0048] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0049] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0050] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0051] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0052] The following is for reference. Figures 1 to 10 The film-tearing method and film-tearing device of the present invention will be described in detail.

[0053] refer to Figure 10 a and Figure 10 b. The workpiece 500 includes a first side 501 and a second side 502. A protective film 510 is attached to the first side 501 of the workpiece 500. A positioning area is formed between the first positioning structure 120 and the second positioning structure 130. The first positioning structure 120 includes a first positioning element 122, which has a first positioning surface 122a. The second positioning structure 130 includes a second positioning element 132, which has a second positioning surface 132a. When the workpiece 500 is in the correct position within the positioning area, the first side 501 of the workpiece 500 is attached to the first positioning surface 122a, and the second side 502 of the workpiece 500 is attached to the second positioning surface 132a. When workpiece 500 is placed in the positioning area in the conventional way, before workpiece 500 falls completely into the positioning area, due to the influence of gravity, workpiece 500 will deflect as a whole, causing workpiece 500 to fall into the positioning area in the wrong posture. When the first positioning member 122 and the second positioning member 132 approach each other, under the push of the first positioning member 122 and the second positioning member 132, workpiece 500 is difficult to automatically adjust to the correct posture. At this time, the film-peeling assembly 200 is unable to peel the film off workpiece 500.

[0054] Reference Figure 1 The film-peeling method according to embodiments of the present invention includes, but is not limited to, the following steps:

[0055] Step S100: Suspend the workpiece 500 within the positioning area formed by the first positioning structure 120 and the second positioning structure 130;

[0056] Understandably, reference Figure 9a. Since the workpiece 500 is suspended in the positioning area, the workpiece 500 will deflect as a whole due to gravity. At the same time, the workpiece 500 is in a suspended state, which makes the overall posture of the workpiece 500 adjustable, so as to facilitate subsequent adjustment of the posture of the workpiece 500.

[0057] Step S200: Drive the first positioning structure 120 and the second positioning structure 130 to move closer to each other, so that the first side 501 and the second side 502 are respectively in close contact with the first positioning structure 120 and the second positioning structure 130.

[0058] Understandably, reference Figure 9 b. Since the workpiece 500 is in a suspended state, after the first positioning structure 120 and the second positioning structure 130 approach each other, the first positioning surface 122a on the first positioning structure 120 can be in close contact with the first side surface 501 of the workpiece 500, and the second positioning surface 132a on the second positioning structure 130 can be in close contact with the second side surface 502 of the workpiece 500, thereby correcting the posture of the workpiece 500 so that the workpiece 500 can be in the correct posture.

[0059] Step S320: Release the suspension state of the workpiece 500, and drive the first positioning structure 120 and the second positioning structure 130 to move away from each other to release the workpiece 500, so that the workpiece 500 falls completely into the positioning area.

[0060] Understandably, after the workpiece 500 is released from its suspended state, the workpiece 500 is suspended in the air under the clamping of the first positioning structure 120 and the second positioning structure 130. At this time, the workpiece 500 cannot fall completely into the positioning area. By driving the first positioning structure 120 and the second positioning structure 130 to move away from each other to release the workpiece 500, the workpiece 500 can move downward under the action of gravity to fall completely into the positioning area.

[0061] Understandably, in order to reduce the change in the posture of the workpiece 500 during the falling process, the first positioning structure 120 and the second positioning structure 130 are moved away from each other so that the workpiece 500 can fall completely into the positioning area.

[0062] Step S400: Drive the first positioning structure 120 and the second positioning structure 130 to move closer to each other again, so that the first side 501 and the second side 502 are respectively in close contact with the first positioning structure 120 and the second positioning structure 130.

[0063] Understandably, reference Figure 9 c and Figure 9d. During the downward movement of workpiece 500, the posture of workpiece 500 will change due to gravity. By driving the first positioning structure 120 and the second positioning structure 130 to move closer to each other again, the first positioning surface 122a of the first positioning structure 120 can once again be in close contact with the first side surface 501 of workpiece 500, and the second positioning surface 132a of the second positioning structure 130 can once again be in close contact with the second side surface 502 of workpiece 500, so as to adjust the posture of workpiece 500 to the correct posture.

[0064] It is understandable that during the process of workpiece 500 falling completely into the positioning area, the workpiece 500 falls a relatively short distance, resulting in a small deviation in its posture. Under the action of the first positioning structure 120 and the second positioning structure 130, the posture of workpiece 500 is easier to adjust.

[0065] Step S500: Drive the film-tearing structure 220 to tear the film off the workpiece 500 in the positioning area to remove the protective film 510 on the workpiece 500.

[0066] It is understood that in the film-removing method of the present invention, before the clamping component 310 releases the workpiece 500, the posture of the workpiece 500 is adjusted once, so that after the workpiece 500 falls completely into the positioning area, the deflection of the posture of the workpiece 500 is smaller, so that the posture of the workpiece 500 can be automatically adjusted to the correct posture under the push of the first positioning structure 120 and the second positioning structure 130, so that the protective film 510 on the workpiece 500 can be successfully removed, thereby improving the film-removing effect of the workpiece 500.

[0067] In some embodiments of the present invention, reference is made to Figure 2 Step S100 includes, but is not limited to, the following steps:

[0068] Step S110: Drive the clamping structure to clamp the protective film 510 on the workpiece 500 so that the workpiece 500 is in a suspended state;

[0069] Step S120: Drive the clamping structure to move above the positioning area so that the workpiece 500 is suspended in the positioning area.

[0070] It is understandable that the protective film 510 is a flexible material. The clamping structure clamps the protective film 510 on the workpiece 500, which can reduce the interference of the clamping structure on the posture of the workpiece 500, so that the workpiece 500 is in an adjustable suspended state. At the same time, the clamping structure clamps the protective film 510 on the workpiece 500, which can reduce the scratches on the surface of the workpiece 500 caused by the clamping structure.

[0071] In other embodiments of the present invention, for some workpieces 500 with a hole-like structure, the workpiece 500 can be directly suspended on the clamping structure using the hole-like structure on the workpiece 500. At this time, the workpiece 500 can also be in a suspended state with adjustable posture.

[0072] In some embodiments of the present invention, step S320 includes, but is not limited to, the following steps:

[0073] Step S310: Drive the clamping structure to release the protective film 510 on the workpiece 500, so as to release the suspension state of the workpiece 500.

[0074] In some embodiments of the present invention, reference is made to Figure 3 Step S500 includes, but is not limited to, the following steps:

[0075] Step S510: Drive the film-tearing structure 220 to clamp the protective film 510 on the first end;

[0076] Step S520: Drive the film-tearing structure 220 to move along a preset direction until the protective film 510 is completely detached from the workpiece 500.

[0077] refer to Figure 5 The workpiece 500 is an elongated piece extending in the left-right direction. The first end of the workpiece 500 is its right end, and the second end is its left end, with the preset direction being from right to left. It can be understood that after the film-tearing structure 220 clamps the protective film 510 on the first end of the workpiece 500, the film-tearing structure 220 moves from right to left, allowing the protective film 510 to gradually separate from the workpiece 500. This reduces damage to the surface of the workpiece 500 caused by the protective film 510 during the removal process. Simultaneously, the right-to-left movement of the film-tearing structure 220 reduces the space occupied by the film-tearing device in the front-back direction.

[0078] Furthermore, step S520 includes, but is not limited to, the following steps:

[0079] Step S521: Drive the film-tearing structure 220 to move a preset distance L2 along a preset direction; wherein, the preset distance L2 and the length L1 of the workpiece 500 satisfy: L2≥2L1.

[0080] Understandably, during the process of the film-tearing structure 220 removing the protective film 510 from the workpiece 500, since the moving direction of the workpiece 500 is parallel to the extending direction of the workpiece 500, the film-tearing structure 220 needs to move twice the length of the already torn portion of the protective film 510 for each certain length of protective film 510 torn off. Therefore, if the film-tearing structure 220 is to completely remove the protective film 510 from the workpiece 500, given that the length of the workpiece 500 is L1, the preset distance L2 that the film-tearing structure 220 moves needs to be greater than twice the length of the workpiece 500.

[0081] refer to Figure 4 and Figure 8 According to a second aspect of the present invention, a film-tearing device includes a positioning component 100, a clamping component 310, and a film-tearing component 200.

[0082] The positioning component 100 includes a first driving structure 110, a first positioning structure 120, and a second positioning structure 130. A positioning area is formed between the first positioning structure 120 and the second positioning structure 130. The first driving structure 110 is connected to at least one of the first positioning structure 120 and the second positioning structure 130 and is used to drive the first positioning structure 120 and the second positioning structure 130 to move closer to or further away from each other. A clamping component 310 is disposed on one side of the positioning component 100. The clamping component 310 is used to grip the workpiece 500 and is able to suspend the gripped workpiece 500 in the positioning area. A film-tearing component 200 is disposed on one side of the positioning component 100. The film-tearing component 200 includes a second driving structure 210 and a film-tearing structure 220. The film-tearing structure 220 is used to clamp the protective film 510 located on the workpiece 500 in the positioning area. The second driving structure 210 is connected to the film-tearing structure 220 and is used to drive the film-tearing structure 220 to move so that the protective film 510 clamped by the film-tearing structure 220 is separated from the workpiece 500.

[0083] For example, such as Figure 4 , Figure 5 and Figure 8As shown, the film-tearing device includes a positioning assembly 100, a clamping assembly 310, and a film-tearing assembly 200. The positioning assembly 100 includes a first driving structure 110, a first positioning structure 120, and a second positioning element 132. Both the first positioning structure 120 and the second positioning structure 130 extend in the left-right direction, with the first positioning structure 120 located behind the second positioning structure 130. A positioning area is formed between the first positioning structure 120 and the second positioning structure 130. The first driving structure 110 is connected to the second positioning structure 130, and the first driving structure 110 can drive the second positioning structure 130 to move in the front-back direction to move closer to or further away from the first positioning structure 120. The clamping assembly 310 is located on the upper side of the positioning assembly 100. Component 200 is located behind positioning component 100. The film-tearing component 200 includes a second driving structure 210 and a film-tearing structure 220. The second driving structure 210 includes a first horizontal transfer module 211 and a second horizontal transfer module 212. The first horizontal transfer module 211 is connected to the film-tearing structure 220 and is used to drive the film-tearing structure 220 to move in the front-back direction. The second horizontal transfer module 212 is connected to the first horizontal transfer module 211. Under the drive of the second horizontal transfer module 212, the first horizontal transfer module 211 can drive the film-tearing structure 220 to move in the left-right direction. The film-tearing structure 220 includes a finger cylinder and two clamping members. The two clamping members are arranged in the front-back direction, and the finger cylinder is connected to the two clamping members respectively.

[0084] When the film-tearing device of the present invention is in operation, the clamping assembly 310 can clamp the workpiece 500 and suspend the workpiece 500 in the positioning area. The first driving structure 110 drives the second positioning structure 130 to move backward to approach the first positioning structure 120. The first positioning structure 120 cooperates with the second positioning structure 130 to adjust the posture of the workpiece 500. Then, the clamping assembly 310 releases the workpiece 500, and the first driving structure 110 drives the second positioning structure 130 to move forward to release the workpiece 500. At this time, the workpiece 500 can fall completely into the positioning area. Then, the first driving structure 110 drives the second positioning structure 130 to move backward to approach the first positioning structure 120. The first positioning structure 120 cooperates with the second positioning structure 130 to adjust the posture of the workpiece 500. The second positioning structure 130 adjusts the posture of the workpiece 500 again and clamps and positions the workpiece 500 so that the workpiece 500 can be positioned in the correct posture within the positioning area. Then, driven by the second driving structure 210, the film-tearing structure 220 approaches the right end of the workpiece 500 and extends the protective film 510 on the workpiece 500 between the two clamping members. The finger cylinder drives the two clamping members to move closer to each other to clamp the protective film 510. Driven by the second horizontal transfer module 212, the film-tearing structure 220 moves backward to separate the protective film 510 from the workpiece 500. Driven by the first horizontal transfer module 211, the film-tearing structure 220 moves to the left to tear off the protective film 510 on the workpiece 500.

[0085] In some embodiments of the present invention, the first positioning structure 120 includes a first mounting bracket 121 and a plurality of first positioning members 122. The plurality of first positioning members 122 are detachably disposed on the first mounting bracket 121 at intervals along a preset direction. A first positioning surface 122a is provided on the side of the first positioning member 122 near the second positioning structure 130, and the first positioning surface 122a is adapted to the first side surface 501 of the workpiece 500. The second positioning structure 130 includes a second mounting bracket 131 and a plurality of second positioning members 132. The plurality of second positioning members 132 are detachably disposed on the second mounting bracket 131 at intervals along a preset direction. A second positioning surface 132a is provided on the side of the second positioning member 132 near the first positioning structure 120, and the second positioning surface 132a is adapted to the second side surface 502 of the workpiece 500. For example, such as Figure 6 and Figure 7 As shown, a plurality of first positioning members 122 are spaced apart on the first mounting bracket 121 in the left-right direction, and the first positioning members 122 can be detachably installed on the first mounting bracket 121 by means of threaded connectors. The front side of the first positioning member 122 forms a first positioning surface 122a. A plurality of second positioning members 132 are spaced apart on the second mounting bracket 131 in the left-right direction, and the second positioning members 132 can be detachably installed on the second mounting bracket 131 by means of threaded connectors. The rear side of the second positioning member 132 forms a second positioning surface 132a. Understandably, the first positioning surface 122a needs to be configured to fit against the first side surface 501 of the workpiece 500, and the second positioning surface 132a needs to be configured to fit against the second side surface 502 of the workpiece 500. The first positioning element 122 is detachably mounted on the first mounting bracket 121, and the second positioning element 132 is detachably mounted on the second mounting bracket 131, so that the operator can replace the first positioning element 122 on the first mounting bracket 121 and the second positioning element 132 on the second mounting bracket 131 according to the specifications of the workpiece 500.

[0086] In some embodiments of the present invention, the film-tearing device further includes a feeding assembly 320, which is disposed on one side of the positioning assembly 100 and is used to feed the workpiece 500 that has had its film peeled off within the positioning area. For example, see reference... Figure 8 The film-tearing device also includes a transfer assembly 300, on which the clamping assembly 310 and the unloading assembly 320 are both disposed. The transfer assembly 300 includes a first transfer structure and a second transfer structure. The first transfer structure is used to drive the clamping assembly 310 and the unloading assembly 320 to move simultaneously in the spatial direction, and the second transfer structure is used to drive the clamping assembly 310 and the unloading assembly 320 to revolve simultaneously around a vertical rotation axis.

[0087] In some embodiments of the present invention, the film-tearing device further includes a film-collecting assembly 400, which is disposed on one side of the positioning assembly 100. The film-collecting assembly 400 includes a receiving groove 410, and the second driving structure 210 can drive the film-tearing structure 220 to transport the torn protective film 510 into the receiving groove 410. The receiving groove 410 is used to receive the protective film 510 torn off from the workpiece 500 by the film-tearing assembly 200. For example, as Figure 4 and Figure 5 As shown, the film-tearing device also includes a film-collecting assembly 400, which includes a receiving groove 410 located to the left of the positioning assembly 100 and on the moving path of the film-tearing structure 220. Furthermore, when the second driving structure 210 drives the film-tearing structure 220 to tear off the protective film 510 from the workpiece 500, the second driving structure 210 can drive the film-tearing structure 220 to move above the receiving groove 410, allowing the film-tearing structure 220 to release the protective film 510 so that the protective film 510 can fall into the receiving groove 410, thus completing the collection of the protective film 510.

[0088] Further reference Figure 5 The film collection assembly 400 also includes a vacuum pipe 420 connected to the receiving tank 410, which is used to connect to a vacuum pump. Furthermore, under the action of the vacuum pump, the protective film 510 in the receiving tank 410 can be discharged through the vacuum pipe 420, thereby emptying the protective film 510 from the receiving tank 410.

[0089] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A method for peeling off a film, characterized in that, A method for removing a protective film from a workpiece, the workpiece having a first side and a second side disposed opposite to each other, the film removal method comprising the following steps: The drive clamping structure clamps the protective film on the workpiece so that the workpiece is in a suspended state; The drive clamping structure moves above the positioning area so that the workpiece is suspended within the positioning area; The first positioning structure and the second positioning structure are driven to move closer to each other, so that the first side and the second side are respectively in close contact with the first positioning structure and the second positioning structure; Release the workpiece from its suspended state, and drive the first positioning structure and the second positioning structure away from each other to release the workpiece, so that the workpiece falls completely into the positioning area; Drive the first positioning structure and the second positioning structure to move closer to each other again, so that the first side and the second side are respectively in close contact with the first positioning structure and the second positioning structure again; The drive tearing structure tears the protective film off the workpiece within the positioning area.

2. The film-peeling method according to claim 1, characterized in that, Releasing the workpiece from its suspended state includes the following steps: Drive the clamping structure to release the protective film on the workpiece, thereby relieving the workpiece from its suspended state.

3. The film-peeling method according to claim 1, characterized in that, The two ends on the workpiece along its length are defined as the first end and the second end, respectively. The direction from the first end to the second end is defined as the preset direction. The driving film-tearing structure tears the film off the workpiece within the positioning area, including the following steps: The drive-tear film structure clamps the protective film on the first end; The drive film-tearing structure moves along the preset direction until the protective film is completely detached from the workpiece.

4. The film-peeling method according to claim 3, characterized in that, The length of the workpiece is The driving tear-off structure moves along the preset direction, including the following steps: The drive film-tearing structure moves a preset distance along the preset direction. Wherein, the preset distance and the length of the workpiece The following conditions must be met: .

5. A film-tearing device, characterized in that, include: A positioning component, comprising a first driving structure, a first positioning structure, and a second positioning structure, wherein a positioning area is formed between the first positioning structure and the second positioning structure, and the first driving structure is connected to at least one of the first positioning structure and the second positioning structure, and is used to drive the first positioning structure and the second positioning structure to move closer to or further away from each other. A clamping assembly is disposed on one side of the positioning assembly. The clamping assembly is used to grip the workpiece and can suspend the gripped workpiece in the positioning area. A film-tearing assembly is disposed on one side of the positioning assembly. The film-tearing assembly includes a second driving structure and a film-tearing structure. The film-tearing structure is used to clamp the protective film on the workpiece located in the positioning area. The second driving structure is connected to the film-tearing structure and is used to drive the film-tearing structure to move so that the protective film clamped by the film-tearing structure is separated from the workpiece.

6. A film-tearing device according to claim 5, characterized in that, The first positioning structure includes a first mounting bracket and a plurality of first positioning components. The plurality of first positioning components are spaced apart along a preset direction and detachably disposed on the first mounting bracket. The first positioning component has a first positioning surface on the side near the second positioning structure. The first positioning surface is adapted to the first side of the workpiece. The second positioning structure includes a second mounting bracket and a plurality of second positioning components. The plurality of second positioning components are spaced apart along a preset direction and detachably disposed on the second mounting bracket. The second positioning component has a second positioning surface on the side near the first positioning structure. The second positioning surface is adapted to the second side of the workpiece.

7. A film-tearing device according to claim 5, characterized in that, It also includes a feeding component, which is located on one side of the positioning component and is used to feed the workpiece with the film removed in the positioning area.

8. A film-tearing device according to claim 5, characterized in that, It also includes a film collection assembly, which is disposed on one side of the positioning assembly. The film collection assembly includes a receiving groove. The second driving structure can drive the film tearing structure to transport the torn protective film into the receiving groove. The receiving groove is used to accommodate the protective film torn off the workpiece by the film tearing assembly.

9. A film-tearing device according to claim 8, characterized in that, The film collection assembly also includes a vacuum pipe connected to the receiving tank, the vacuum pipe being used to connect to a vacuum pumping device.

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