Film sticking machine and film sticking method

Abstract

The invention relates to a film sticking machine which comprises a base, an unwinding unit is arranged on the base, and the unwinding unit is used for placing and outputting a film body; the pressing unit is positioned on a film body output path of the unwinding unit and is used for pressing a film on a product; the cutting unit is positioned at the downstream of the pressing unit and is used for cutting the film; the jig unit is used for fixing a product, and the jig unit is located below a film body output path of the unwinding unit; the pressing unit moves relative to the jig unit in the film body output direction so that a film can be tightly attached to a product. The cutting unit moves in the direction perpendicular to the output direction of the film bodies after film pasting is completed so as to cut off the film bodies at the two ends of the jig unit. According to the semi-automatic film pasting machine, the modular design is adopted, semi-automation from film output, pressing and cutting is achieved, the film pasting efficiency is remarkably improved, the labor intensity of workers is reduced, adverse factors in the film pasting process can be avoided, and the film pasting effect is remarkably improved.

Description

Technical Field

[0001] The present application relates to the technical field of film pasting equipment, and in particular to a film pasting machine and a film pasting method. Background Art

[0002] At present, the process of product film pasting is still at the stage of manual film pasting, which is inefficient.

[0003] With the advancement of science and technology and the increasing maturity of automation technology, semi-automatic film laminating equipment has emerged. This type of equipment greatly reduces the physical burden of operators through mechanical assistance and improves the speed and accuracy of film laminating. However, although semi-automatic film laminating technology has been significantly improved compared to pure manual operation, it still faces some technical challenges that need to be solved in actual application:

[0004] First, the unstable position of the product itself can easily lead to relative displacement between the product and the film, affecting the film application effect;

[0005] Second, the film tension is insufficient, which easily generates bubbles after film application;

[0006] Third, during the film pasting process, the film body is heated unevenly, resulting in inconsistent shrinkage states in different parts, affecting the film pasting effect.

[0007] In order to solve the above technical problems, it is urgent to develop a film pasting machine and a film pasting method. Summary of the invention

[0008] Based on this, it is necessary to provide a film laminating machine and a film laminating method to address the above problems, which can stabilize the product position, ensure the tension of the film, and allow the film to be evenly heated during the contact between the film and the product.

[0009] A film laminating machine, comprising:

[0010] A base, on which an unwinding unit is arranged, and the unwinding unit is used to place and output the film body;

[0011] A pressing unit, located on the film output path of the unwinding unit, and used for pressing the film onto the product;

[0012] a cutting unit, located downstream of the laminating unit, for cutting the film;

[0013] A fixture unit, used for fixing the product, wherein the fixture unit is located below the film output path of the unwinding unit;

[0014] The pressing unit moves relative to the fixture unit along the length direction of the film body to closely fit the film onto the product;

[0015] After the film is pasted, the cutting unit moves along the width direction of the film body to cut off the mold bodies at both ends of the fixture unit.

[0016] In one embodiment, the unwinding unit includes: a film loading mechanism for loading and outputting the film; a film tearing mechanism arranged on the film output path of the film loading mechanism; and a film guiding mechanism arranged downstream of the film tearing mechanism for guiding the film to move along a predetermined path.

[0017] In one embodiment, the pressing unit includes: a sliding frame capable of sliding along the base; a pressing wheel mechanism disposed on the sliding frame for pressing the film; and a driving mechanism connected to the sliding frame for driving the sliding frame and the pressing wheel mechanism to move relative to the jig unit.

[0018] In one embodiment, the cutting unit includes: a flap frame, which is arranged on the base; a flap, which is rotatably arranged on the flap frame and can be flipped relative to the base to avoid or cover the fixture unit; a cutting mechanism, which is arranged on the flap and is used to cut the film; and a cutting path groove, which is arranged on the flap and is used to guide the moving path of the cutting mechanism.

[0019] In one of the embodiments, a heating mechanism is added to the bottom of the jig unit, and the heating mechanism is used to heat the jig unit so that the film body is heated evenly during the film lamination process.

[0020] In one of the embodiments, a tension control system is provided on the film loading mechanism for controlling the tension of the film.

[0021] In one of the embodiments, it further includes an outer shell, which is disposed on the base and at least partially covers the unwinding unit.

[0022] In one of the embodiments, a membrane replacement port is provided on the outer shell, and the membrane replacement port is used to replace the membrane on the membrane installation mechanism.

[0023] A film replacement method uses a film sticking machine to stick the film on the product. The film sticking steps are as follows:

[0024] Fixing the product on the fixture unit;

[0025] Outputting the film from the unwinding unit and moving it along a predetermined path to a position covering the product;

[0026] Operating the pressing unit to press the film onto the product;

[0027] The cutting unit is operated to cut the film body and remove the portion exceeding the edge of the product.

[0028] In one of the embodiments, before the step of operating the laminating unit to press the film onto the product, the step further includes: adjusting the tension of the film output from the unwinding unit by means of the tension control system.

[0029] In one of the embodiments, after the step of fixing the product on the jig unit, the step further includes: heating the jig unit by a heating mechanism so that the film body is heated evenly during the film lamination process.

[0030] The above-mentioned film laminating machine and film laminating method realize semi-automation from film output, lamination to cutting through modular design, which significantly improves the film laminating efficiency and reduces the labor intensity.

[0031] This application also has the following advantages:

[0032] (1) The tension control system of the present application on the film loading and unwinding mechanism can accurately control the tension of the film, ensure the stability of the film body during the film laminating process, avoid the problem of uneven tension that may occur when manually pulling the film, and thus improve the quality of film laminating;

[0033] (2) The jig unit of the present application is used to fix the product body, ensuring the stability of the product position during the film pasting process, avoiding relative displacement between the product and the film, and thus ensuring the stability of the film pasting effect; at the same time, the heating mechanism at the bottom of the jig unit can heat the jig body, and the heat is evenly transferred to the film body in close contact, so that the film body is heated evenly during the film pasting process, avoiding the problem of inconsistent film shrinkage state caused by uneven heating, and further improving the film pasting effect;

[0034] (3) The laminating unit of the present application can closely fit the film body to the product through the sliding frame and the pressing wheel body, in cooperation with the precise movement and rolling of the sliding guide rod, thereby avoiding the generation of bubbles and improving the quality of film laminating;

[0035] (4) The present application provides an outer shell outside the unwinding unit to at least partially cover the internal mechanism, which not only protects the internal mechanism from external interference, but also reduces the intrusion of dust and impurities into the film body, further ensuring the quality of film lamination. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic diagram of the external structure of a film laminating machine provided in one embodiment of the present application.

[0037] Figure 2 This is a schematic diagram of the internal structure of a film laminating machine provided in one embodiment of the present application.

[0038] Figure 3 It is a schematic diagram of the structure of a pressing unit provided in one embodiment of the present application.

[0039] Figure 4This is a schematic diagram of the structure of a cutting unit provided in one embodiment of the present application.

[0040] Figure 5 Schematic diagram of the structure of a cutter assembly in a cutting unit provided in one embodiment of the present application.

[0041] Description of Figure Numbers:

[0042] 1. Base; 2. Unwinding unit; 3. Laminating unit; 4. Cutting unit; 5. Jig unit; 6. Product body;

[0043] 201, film loading and unwinding mechanism; 202, film tearing mechanism; 203, film guide roller; 204, outer shell; 205, film changing port;

[0044] 301, sliding frame; 302, pressing wheel mounting seat; 303, pressing wheel body; 304, sliding guide rod; 305, pressing drive mechanism; 306, pressing guide rod; 307, sliding handle;

[0045] 401, flap mounting frame; 402, film flap; 403, cutting path slot; 404, cutter assembly; 405, limiter; 406, flap handle;

[0046] 40401, cutter mounting frame; 40402, cutter body; 40403, connecting slide block; 40404, cutting guide rail; 40405, cutting handle. DETAILED DESCRIPTION

[0047] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0048] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0049] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0050] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0051] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0052] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0053] See also Figure 1 , Figure 1 The external structure schematic diagram of the film laminating machine in one embodiment of the present application is shown. The film laminating machine provided in one embodiment of the present application includes a base 1, an unwinding unit 2, a laminating unit 3, a cutting unit 4 and a fixture unit 5;

[0054] The base 1 serves as a supporting structure for the entire laminating machine, and other units are arranged on the base 1 .

[0055] Combination Figure 2 As shown, Figure 2 A schematic diagram of the internal structure of a film laminating machine in an embodiment of the present application is shown. In some embodiments, an unwinding unit 2 is arranged on a base 1, and is used to place and output a film; the unwinding unit 2 includes a film loading and unwinding mechanism 201, a film tearing mechanism 202 and a film guide roller 203; the film loading and unwinding mechanism 201 is used to load and output the film, the film tearing mechanism 202 is arranged downstream of the film loading and unwinding mechanism 201, and the film guide roller 203 is arranged downstream of the film tearing mechanism 202, and is used to guide the film to move along a predetermined path.

[0056] In some embodiments, the film laminating machine further includes an outer shell 204, which is disposed on the base 1 and at least partially covers the film on the unwinding unit 2 to protect the internal mechanism and reduce external interference;

[0057] In a specific embodiment, a film replacement port 205 is provided on the outer shell 204 for replacing the film on the film loading and unwinding mechanism 201 , which is convenient for user operation and maintenance.

[0058] Combination Figure 3 As shown, Figure 3 The structural schematic diagram of the laminating unit in an embodiment of the present application is shown. In some embodiments, the laminating unit 3 is arranged on the base 1 and located on the film output path of the unwinding and tearing film unit 2, and is used to press the film body on the product body 6. In some specific embodiments, the laminating unit 3 includes a sliding frame 301, a pressing wheel mounting seat 302, a pressing wheel body 303, a sliding guide rod 304 and a pressing drive mechanism 305, a pressing guide rod 306 and a sliding handle 307;

[0059] The sliding frame 301 can slide along the length direction of the sliding guide rod 304, and the pressure wheel mounting seat 302 moves with the sliding frame 301. The pressure wheel body 303 is rotatably set on the pressure wheel mounting seat 302 for pressing the film; the downward pressure driving mechanism 305 is installed on the top of the sliding frame 301, and is used to drive the pressure wheel body 303 to move toward the film body so as to fit the film body tightly on the product body 6; illustratively, the downward pressure driving mechanism 305 can be set as a cylinder with the output end facing the film body.

[0060] In some specific embodiments, a downward pressing guide rod 306 is additionally provided in the moving direction of the pressing wheel mounting seat 302 , and the downward pressing guide rod 306 is used to ensure that the pressing wheel mounting seat 302 faces the membrane body in the driving direction of the downward pressing driving mechanism 305 .

[0061] In a specific embodiment, a sliding handle 307 is added to the top of the sliding frame 301. The sliding handle 307 is used to manually pull the sliding handle 307 after the pressing wheel body 303 moves into position, so that the pressing wheel body 303 applies a downward force to the film body, so that the film body and the product body 6 fit tightly.

[0062] In some embodiments, the jig unit 5 is used to fix the product body 6 , and the jig unit 5 is located below the film output path of the unwinding unit 1 , so that the pressing wheel body 303 can press the film onto the product body 6 .

[0063] In a specific embodiment, a heating mechanism (not directly shown in the figure) is provided at the bottom of the jig unit 5, and the heating mechanism is used to heat the jig unit 5 so that the film body is heated evenly during the film lamination process.

[0064] Combination Figure 4 As shown, Figure 4 A schematic structural diagram of a cutting unit in an embodiment of the present application is shown.

[0065] In some embodiments, the cutting unit 4 is disposed on the base 1 and located downstream of the laminating unit 3, and is used to cut the film; in a specific embodiment, the cutting unit 4 includes a flip cover mounting frame 401, a film flap 402, a cutting path groove 403, a cutting knife assembly 404, a stopper 405, and a flip cover handle 406;

[0066] The flip cover mounting frame 401 is fixed on the base 1, and the film flip cover 402 is rotatably arranged on the flip cover mounting frame 401, and can be flipped relative to the base 1 to avoid the moving direction of the pressing unit 3;

[0067] The cutter assembly 404 is disposed on the film flap 402 for cutting the film. A cutting path groove 403 is disposed on the film flap 402 to guide the moving path of the cutter assembly 404 to complete the film cutting at both ends of the fixture unit 5.

[0068] The limiting member 405 is fixed on the flip cover mounting frame 401 , and is used to limit the rear end of the pressing unit 3 in its moving direction to prevent the sliding frame 301 from moving out of the range of the sliding guide rod 304 .

[0069] The flip cover handle 406 is fixed on the film flip cover 402, so as to facilitate manual holding and enable the film flip cover 402 to achieve avoidance flipping operation or downward flipping cutting operation.

[0070] Combination Figure 5 As shown, Figure 5 A schematic structural diagram of a cutter assembly in an embodiment of the present application is shown.

[0071] In some embodiments, the structure of the cutter assembly 404 is: including a cutter mounting frame 40401, a cutter body 40402, a connecting slider 40403, a cutting guide rail 40404 and a cutting handle 40405;

[0072] The cutter mounting frame 40401 is a gate-shaped bracket structure, which is arranged in the cutting path groove 403 and is used to drive the cutter body 40402 located at the end to move synchronously;

[0073] A cutter body 40402, used for cutting the film body;

[0074] The connecting slider 40403 is fixed on the inner wall of the cutter mounting frame 40401 and is clamped in the cutting guide rail 40404. When the connecting slider 40403 moves along the length direction of the cutting guide rail 40404, the cutter mounting frame 40401 is synchronously driven to move.

[0075] The cutting handle 40405 is fixed on the top of the cutter mounting bracket 40401, and is used to manually hold the cutting handle 40405 to move the connecting slider 40403 along the length direction of the cutting guide rail 40404 to perform cutting movement and complete the film cutting operation.

[0076] In a specific embodiment, the film attaching method of the present application is as follows:

[0077] Manually place the fixture body on the fixture unit 5 and fix it;

[0078] Placing the product body 6 in the jig unit 5 and fixing the product body 6 in the jig unit 5;

[0079] The film is mounted on the film loading and unwinding mechanism 201, and is manually pulled over the film guide roller 203, and is continuously pulled over the area of ​​the jig unit 5 where the film is attached to the product body 6, until it reaches the film pulling end position;

[0080] During the film laminating process, the film laminating flap 402 of the cutting unit 4 is first flipped upward and away to avoid blocking the pressing unit 3, and then the pressing driving mechanism 305 in the pressing unit 3 is started to drive the pressing wheel body 303 to move in the direction close to the product. During the movement, the bottom of the pressing wheel body 303 abuts against the film; the pressing wheel body 303 moves into place, and the sliding frame 301 drives the pressing wheel body 303 to roll along the direction of the sliding guide rod 304, so that the film and the product body 6 are closely fitted;

[0081] After the film is applied, the film flap 402 of the cutting unit 4 is flipped downward and moved closer, so that the cutter assembly 404 is facing the mold body; the cutter assembly 404 moves along the cutting path groove 403, and during the movement, the cutter assembly 404 completes the cutting of the film body at both ends of the product body 6.

[0082] In a specific embodiment, a heating mechanism is added to the bottom of the jig unit 5. After the heating mechanism heats the jig body of the jig unit 5, the jig transfers the heat evenly to the film body in close contact, so that the film body is evenly heated during the film lamination process.

[0083] In a specific embodiment, a tension control system is also provided on the film loading and unwinding mechanism 201, including components such as a tension sensor, a tension controller and an actuator (such as a servo motor); wherein the tension sensor is responsible for real-time monitoring of the tension of the film, and converting the tension signal into an electrical signal and transmitting it to the tension controller; the tension controller calculates the control amount to be adjusted through an algorithm according to the deviation between the preset tension value and the actual tension value, and outputs a control signal to the actuator; the actuator adjusts its output torque or speed according to the control signal, thereby achieving precise control of the film tension; finally, the tension of the film body is ensured during the film pasting process, and the film tension is not tight due to the relaxation or retreat of the operator during the manual film pulling process, and bubbles are generated during the film pasting. After the film is pulled from the film loading and unwinding mechanism 201 to the position where the jig unit 5 is completely covered, the front section of the film body is pasted to the full section position of the jig unit 5 and fixed.

[0084] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0085] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A film laminating machine, characterized in that: include: A base, on which an unwinding unit is arranged, and the unwinding unit is used to place and output the film body; A pressing unit, located on the film output path of the unwinding unit, and used for pressing the film onto the product; A cutting unit, located downstream of the pressing unit, for cutting the film body; A fixture unit, used for fixing the product, wherein the fixture unit is located below the film output path of the unwinding unit; The pressing unit moves relative to the fixture unit along the length direction of the film body to closely fit the film onto the product; After the film is pasted, the cutting unit moves along the width direction of the film body to cut off the mold bodies at both ends of the fixture unit.

2. The film laminating machine according to claim 1, characterized in that: The unwinding unit comprises: Film loading mechanism, used for loading and outputting the film body; A film tearing mechanism, arranged on the film output path of the film loading mechanism; The film guiding mechanism is arranged downstream of the film tearing mechanism and is used for guiding the film to move along a predetermined path.

3. The film laminating machine according to claim 1, characterized in that: The pressing unit comprises: A sliding frame capable of sliding along the base; A pressing wheel mechanism, arranged on the sliding frame, for pressing the film; The driving mechanism is connected to the sliding frame and is used to drive the sliding frame and the pressing wheel mechanism to move relative to the fixture unit.

4. The film laminating machine according to claim 1, characterized in that: The cutting unit comprises: A flip cover frame, arranged on the base; A flip cover, rotatably disposed on the flip cover frame, capable of flipping relative to the base to avoid or cover the fixture unit; A cutting mechanism, disposed on the flip cover, for cutting the film; A path groove is arranged on the flip cover and is used to guide the moving path of the cutting mechanism.

5. The film laminating machine according to claim 1, characterized in that: A heating mechanism is added at the bottom of the jig unit, and the heating mechanism is used to heat the jig unit so that the film body is heated evenly during the film lamination process.

6. The film laminating machine according to claim 2, characterized in that: The film loading mechanism is also provided with a tension control system for controlling the tension of the film.

7. The film laminating machine according to any one of claims 1 to 6, characterized in that: It also includes an outer shell, which is arranged on the base and at least partially covers the unwinding unit.

8. The film laminating machine according to claim 7, characterized in that: The outer shell is provided with a membrane replacement port, which is used to replace the membrane on the membrane installation mechanism.

9. A membrane replacement method, characterized in that: The product is laminated with a film using the film laminating machine as described in any one of claims 1 to 8, and the film laminating steps are as follows: Fixing the product on the fixture unit; Outputting the film from the unwinding unit and moving it along a predetermined path to a position covering the product; Operating the pressing unit to press the film onto the product; The cutting unit is operated to cut the film body and remove the portion exceeding the edge of the product.

10. The film attaching method according to claim 9, characterized in that: Before the step of operating the laminating unit to press the film onto the product, the step further includes: adjusting the tension of the film output from the unwinding unit by the tension control system; After the step of fixing the product on the jig unit, the method further includes the step of heating the jig unit by a heating mechanism so that the film body is heated evenly during the film lamination process.

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