Film cutting device of window veneer machine

Abstract

The utility model discloses a film cutting device of a window pasting machine, which includes a film cutting assembly and a die pressing assembly. The film cutting assembly includes an upper cutter and a lower cutter. The upper cutter is arranged on a cutter plate, the cutter plate is connected to a cutter plate transmission mechanism, and the film pressing assembly is connected to the film pressing transmission mechanism. The film pressing assembly includes a film support strip, a fixing seat, a lifting bracket and a film pressing strip. The film support strip is arranged in front of the lower cutter to support the film. The fixing seat is arranged above the film cutting assembly, and the fixing seat is relatively provided with a lifting bracket. The film pressing strip is arranged below the upper cutter, the film pressing strip corresponds to the film support strip, the film pressing transmission mechanism drives the film pressing strip to press the film, and the cutter plate transmission mechanism drives the upper cutter to cooperate in cutting the film. The cutter plate and the film pressing strip cooperate with each other in work and do not interfere with each other in connection. Before the upper cutter cuts the film, the film pressing strip cooperates with the film support strip to press the film to prevent the film from moving during cutting, and the upper cutter and the lower cutter accurately cut the required film size.

Description

Technical Field

[0001] The utility model relates to a window pasting machine, in particular to a film cutting device of the window pasting machine. Background Art

[0002] Window film laminating machine, also known as paper box window film laminating machine, is a mechanical equipment specially used for laminating films on open window paper boxes. It is mainly used to laminat open window gift boxes, cosmetic boxes, tissue boxes, open window corrugated paper boxes, etc., to enhance the beauty of the product and protect the internal items.

[0003] The window patching machine has a flat belt paper extraction mechanism, a rotary gluing method, and a horizontal knife film cutting design to ensure the uniformity of gluing and the stability of film cutting. When cutting the film horizontally, the machine vibrates and drives the film to shake, resulting in inaccurate cutting size, which in turn affects the qualified rate of the final product. Utility Model Content

[0004] The utility model aims at the shortcomings of the prior art and provides a film cutting device for a window pasting machine which can improve the accuracy of film cutting size and the yield rate.

[0005] To solve the above technical problems, the utility model is solved by the following technical solutions: a film cutting device of a window pasting machine includes a film cutting assembly and a pressing die assembly, the film cutting assembly includes an upper cutter and a lower cutter cooperating with the upper cutter to cut the film, the upper cutter is arranged on a knife plate, and the knife plate is connected to a knife plate transmission mechanism driving the knife plate to move up and down; the utility model is characterized in that: it also includes a film pressing assembly, and the film pressing assembly is connected to the film pressing transmission mechanism;

[0006] The film pressing assembly includes a film supporting strip, a fixing seat, a lifting bracket and a film pressing strip; the film supporting strip is arranged in front of the lower cutting knife, and supports the film; the fixing seat is fixedly arranged above the film cutting assembly, and the fixing seat is relatively provided with a lifting bracket; the lifting bracket is connected to a film pressing transmission mechanism that drives it to move up and down; the film pressing strip is arranged below the upper cutting knife, and the film pressing strip is connected to the lifting bracket through a connecting shaft, and the film pressing strip corresponds to the film supporting strip, and the film pressing transmission mechanism drives the film pressing strip to press the film, and the knife plate transmission mechanism drives the upper cutting knife to cooperate in film cutting.

[0007] The blade transmission mechanism of the utility model drives the blade to move up and down, and the film pressing transmission mechanism drives the film pressing strip to move up and down. The blade and the film pressing strip cooperate with each other in operation and do not interfere with each other in connection. Before the upper cutter cuts the film, the film pressing strip cooperates with the film supporting strip to press the film to prevent the film from moving during cutting, so that the upper cutter and the lower cutter can accurately cut the required film size and improve the yield rate.

[0008] Preferably, the knife plate transmission mechanism and the film pressing transmission mechanism are respectively equipped with power sources. The two power sources respectively drive the knife plate and the lifting bracket to move up and down, which is convenient for maintenance.

[0009] Preferably, the blade drive mechanism and the film pressing drive mechanism share a power source. One power source drives the blade and the lifting bracket to move up and down at the same time, and the three are linked, the movements are more coordinated, and the cost is lower.

[0010] Preferably, the film pressing transmission mechanism includes a driving wheel and a reset elastic member; the driving wheel is in contact with the lifting bracket, and the driving wheel drives the lifting bracket to move up and down; the reset elastic member is arranged between the lifting bracket and the fixed seat, and the reset elastic member provides a reset force for the lifting bracket. The power source drives the driving wheel to drive the film pressing strip to move up and down, and the reset elastic member causes the lifting bracket to rise and reset, thereby ensuring the stable reciprocating motion of the lifting bracket.

[0011] On the basis of having a driving wheel, the blade transmission mechanism includes an eccentric component, which is coaxially arranged with the driving wheel and is in transmission connection with the blade. The eccentric component drives the blade to move up and down, and the upper cutter moves relative to the lower cutter to achieve film cutting.

[0012] On the basis of having a reset elastic member, the reset elastic member has at least two groups, and the reset elastic members are respectively arranged on both sides of the lifting bracket. The reset elastic members are arranged on both sides of the lifting bracket to ensure that the lifting bracket is evenly stressed and moves stably.

[0013] On the basis of having a driving wheel, the driving wheel is a cam or an eccentric bearing.

[0014] On the basis of having an eccentric component, the eccentric component is arranged on both sides of the driving wheel, and the eccentric component is connected to the blade through a hinge. The hinge prevents the blade from shaking during movement, so that the upper cutter can cut stably and ensure the yield rate.

[0015] Preferably, the coupling shaft is provided with a limit nut, the limit nut is arranged below the lifting bracket, and a buffer elastic member is provided between the limit nut and the lifting bracket. When the film pressing strip presses the film, the buffer elastic member provides a buffer to prevent the film pressing strip and the film supporting strip from causing indentations on the film.

[0016] Preferably, the frame is further provided with an adsorption roller and a film delivery driving member for driving the adsorption roller to rotate, the feed end of the adsorption roller is connected with the discharge end of the film pressing assembly, the adsorption roller has an adsorption hole, and the adsorption hole is connected with the negative pressure source. The adsorption hole adsorbs the cut film, and the adsorption roller delivers it, ensuring stable film delivery. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a structural schematic diagram of the utility model.

[0018] Figure 2 It is a structural schematic diagram of the film cutting device.

[0019] Figure 3 It is a three-dimensional diagram of the film cutting device.

[0020] Figure 4 It is a rear view of the film cutting device.

[0021] The parts indicated by the numbers in the above drawings are as follows:

[0022] Among them, 1. frame; 2. knife plate; 21. upper cutter; 3. lower cutter; 4. film support strip; 5. fixed seat; 6. lifting bracket; 7. film pressing strip; 8. connecting shaft; 81. limit nut; 9. buffer elastic part; 10. driving wheel; 11. reset elastic part; 111. guide rod; 112. reset spring; 113. adjusting nut; 12. eccentric part; 121. hinge; 13. adsorption roller; 131. adsorption hole. DETAILED DESCRIPTION

[0023] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0024] The film cutting device of the window patching machine includes a film cutting assembly and a film pressing assembly. The film cutting assembly includes an upper cutter 21 and a lower cutter 3 that cooperates with the upper cutter 21 to cut film. The upper cutter 21 is arranged on a knife plate 2, and the lower cutter 3 is arranged on a frame 1. The upper cutter 21 and the lower cutter 3 correspond to each other up and down. The knife plate 2 is connected to a knife plate transmission mechanism that drives it to move up and down, and the film pressing assembly is connected to the film pressing transmission mechanism; the film pressing assembly includes a film support bar 4, a fixed seat 5, a lifting bracket 6 and a film pressing bar 7. The film support bar 4 is arranged in front of the lower cutter 3, and the film support bar 4 supports the film; the fixed seat 5 is arranged above the film cutting assembly, and the fixed seat 5 is relatively provided with a lifting bracket 6. The lifting bracket 6 is connected to the film pressing transmission mechanism that drives it to move up and down, and the lifting bracket 6 is arranged above the fixed seat 5. The film pressing strip 7 is arranged below the upper cutter 21 to ensure that the film pressing strip 7 has pressed the film before the upper cutter 21 contacts the film. The film pressing strip 7 is connected to the lifting bracket 6 through a coupling 8. The coupling 8 can pass through the fixed seat 5 and the blade 2 to connect with the film pressing strip 7, or it can be arranged on one side of the blade 2. The film pressing strip 7 corresponds to the film support strip 4. The film pressing transmission mechanism drives the film pressing strip 7 to press the film. The blade transmission mechanism drives the upper cutter 21 to cooperate with film cutting. Before film cutting, the film pressing strip 7 pre-presses the film to ensure the accuracy of film cutting and improve the yield rate. In order to stably deliver the cut film, the frame 1 is also provided with an adsorption roller 13 and a film delivery drive member that drives the adsorption roller 13 to rotate. The feed end of the adsorption roller 13 is connected to the discharge end of the film pressing assembly. The adsorption roller 13 has an adsorption hole 131, which is connected to the negative pressure source. The adsorption hole 131 adsorbs the film on the adsorption roller 13 to ensure that the film is stably delivered.

[0025] The working principle of the utility model is described below in conjunction with the accompanying drawings: the film pressing transmission mechanism drives the film pressing strip 7 to press the film onto the film supporting strip 4 to prevent the film from moving during cutting and improve the yield rate. Then the die cutting transmission mechanism drives the upper cutter 21 to move downward, and the upper cutter 21 cooperates with the lower cutter 3 to accurately cut the required film size. The two transmission mechanisms drive the blade plate 2 and the film pressing strip 7 to move up and down respectively, so that the blade plate 2 and the film pressing strip 7 cooperate with each other in work and do not interfere with each other in connection. After the cutting is completed, the blade plate 2 drives the upper cutter 21 to move upward, and the film pressing strip 7 cooperates to move upward, and the cut film is sent out by the film feeding device.

[0026] The blade drive mechanism and the film pressing drive mechanism are respectively equipped with power sources, or the blade drive mechanism and the film pressing drive mechanism share a power source. Multiple power sources are more expensive and require more precise synchronous control. In order to save costs and realize synchronous control of the lifting bracket 6 and the blade 2 at the same time, one power source is preferred.

[0027] When the blade drive mechanism and the film pressing drive mechanism share a power source, the film pressing drive mechanism includes a driving wheel 10 and a reset elastic member 11; the driving wheel 10 is in contact with the lifting bracket 6, and the driving wheel 10 is a cam or an eccentric bearing. The power source drives the driving wheel 10 to rotate, and the driving wheel 10 drives the lifting bracket 6 to move up and down; the reset elastic member 11 is arranged between the lifting bracket 6 and the fixed seat 5, and the reset elastic member 11 includes a guide rod 111 and a reset spring 112. The reset spring 112 is wound around the guide rod 111, and the two ends of the reset spring 112 are respectively in contact with the fixed seat 5 and the adjusting nut 113, and the adjusting nut 113 is threadedly connected to the guide rod 111. The reset elastic member 11 provides a reset force for the lifting bracket 6, and the reset force of the reset elastic member 11 on the lifting bracket 6 can be adjusted by the adjusting nut 113. In order to ensure the stable reset of the lifting bracket 6, the reset elastic member 11 has at least two groups, and the reset elastic members 11 are respectively arranged on both sides of the lifting bracket 6. The blade transmission mechanism includes an eccentric component 12, which is coaxially arranged with the driving wheel 10. The eccentric component 12 is arranged on both sides of the driving wheel 10. The eccentric component 12 is an eccentric bearing, a cam, etc. The eccentric component 12 is matched with the driving wheel 10 to make the movement trajectories of the lifting bracket 6 and the blade 2 suitable. The eccentric component 12 is connected to the blade 2 by transmission. The eccentric component 12 is connected to the blade 2 by a hinge 121 to prevent the blade 2 from shaking during movement. A power source drives the blade 2 and the film pressing strip 7 to move up and down to achieve synchronous control and reduce costs.

[0028] In order to prevent the film pressing strip 7 from causing indentation on the film, the coupling shaft 8 is provided with a limit nut 81, the limit nut 81 is arranged below the lifting bracket 6, and a buffer elastic member 9 is provided between the limit nut 81 and the lifting bracket 6. The limit nut 81 is threadedly connected to the coupling shaft 8, and the limit nut 81 supports the buffer elastic member 9. The buffer force of the buffer elastic member 9 can be adjusted by adjusting the limit nut 81. When the film pressing strip 7 presses the film, the buffer elastic member 9 can provide a buffer force to it, avoid causing indentation on the film, and ensure the yield of the film. The buffer elastic member 9 can be provided in multiple groups, which are respectively arranged on both sides of the lifting bracket 6, so that the lifting bracket 6 is subjected to a more uniform force, and the stability of the lifting bracket 6 is ensured.

[0029] In order to prevent the film from floating up when being delivered, the frame 1 is also provided with an adsorption roller 13 and a film delivery driving member for driving the adsorption roller 13 to rotate. The film delivery driving member drives the adsorption roller 13 to rotate. The feed end of the adsorption roller 13 is connected with the discharge end of the film pressing assembly. The adsorption roller 13 is provided with an adsorption hole 131, which is connected to a negative pressure source. The adsorption hole 131 adsorbs the film on the adsorption roller 13 to ensure that the film is delivered stably.

[0030] In the description of the present utility model, it should be understood that the terms "center", "length", "width", "thickness", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0031] In short, the above is only a preferred embodiment of the present utility model, and all equivalent changes and modifications made according to the scope of the patent application of the present utility model should fall within the scope of the present utility model patent.

Claims

1. A film cutting device for a window patching machine, comprising a film cutting assembly, comprising an upper cutting knife (21) and a lower cutting knife (3) cooperating with the upper cutting knife (21) to cut film, wherein the upper cutting knife (21) is arranged on a knife plate (2), and the knife plate (2) is connected to a knife plate transmission mechanism for driving the knife plate to move up and down, and is characterized in that: It also includes a film pressing assembly, which is connected to the film pressing transmission mechanism; Pressed film components, including A film support strip (4) is arranged in front of the lower cutter (3), and the film support strip (4) supports the film; A fixed seat (5) is arranged above the film cutting assembly, and a lifting bracket (6) is arranged opposite to the fixed seat (5); A lifting bracket (6) connected to a film pressing transmission mechanism that drives the lifting bracket to move up and down; A film pressing strip (7) is arranged below the upper cutter (21), the film pressing strip (7) is connected to the lifting bracket (6) via a connecting shaft (8), the film pressing strip (7) corresponds to the film supporting strip (4), the film pressing transmission mechanism drives the film pressing strip (7) to press the film, and the knife plate transmission mechanism drives the upper cutter (21) to cooperate in cutting the film.

2. The film cutting device of the window pasting machine according to claim 1, characterized in that: The knife plate transmission mechanism and the film pressing transmission mechanism are respectively equipped with power sources.

3. The film cutting device of the window pasting machine according to claim 1, characterized in that: The knife plate transmission mechanism and the film pressing transmission mechanism share a power source.

4. The film cutting device of the window pasting machine according to claim 1 or 3, characterized in that: The film pressing transmission mechanism comprises a driving wheel (10) and a resetting elastic member (11); A driving wheel (10) which is in contact with the lifting bracket (6), and the driving wheel (10) drives the lifting bracket (6) to move up and down; A resetting elastic member (11) is arranged between the lifting bracket (6) and the fixing seat (5), and the resetting elastic member (11) provides a resetting force for the lifting bracket (6).

5. The film cutting device of the window pasting machine according to claim 4, characterized in that: The blade transmission mechanism comprises an eccentric component (12), the eccentric component (12) is coaxially arranged with the driving wheel (10), and the eccentric component (12) is transmission-connected with the blade (2).

6. The film cutting device of the window pasting machine according to claim 4, characterized in that: The resetting elastic members (11) include at least two groups, and the resetting elastic members (11) are respectively arranged on both sides of the lifting bracket (6).

7. The film cutting device of the window pasting machine according to claim 4, characterized in that: The driving wheel (10) is a cam or an eccentric bearing.

8. The film cutting device of the window pasting machine according to claim 5, characterized in that: The eccentric component (12) is arranged on both sides of the driving wheel (10), and the eccentric component (12) is connected to the blade (2) via a hinge (121).

9. The film cutting device of the window pasting machine according to claim 1, characterized in that: The connecting shaft (8) is provided with a limiting nut (81), the limiting nut (81) is arranged below the lifting bracket (6), and a buffer elastic member (9) is provided between the limiting nut (81) and the lifting bracket (6).

10. The film cutting device of the window pasting machine according to claim 1, characterized in that: The frame (1) is also provided with an adsorption roller (13) and a film feeding drive member for driving the adsorption roller (13) to rotate, the feed end of the adsorption roller (13) is connected to the discharge end of the film pressing assembly, the adsorption roller (13) has an adsorption hole (131), and the adsorption hole (131) is connected to a negative pressure source.

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