Film cutting device of paperboard film laminating machine

Abstract

The utility model provides a film cutting device of a paperboard film laminating machine, which comprises an unreeling mechanism and a positioning cutting mechanism, a film roll is arranged on the unreeling mechanism, the positioning cutting mechanism comprises a support arm and a support roller arranged on the support arm, two ends of the support roller are provided with positioning mechanisms, and the positioning mechanisms are arranged on the support arm. A plurality of cutting mechanisms are evenly distributed in the middle of the supporting roller, and the cutting mechanisms and the positioning mechanisms can move along the supporting roller. The cutting mechanism is pressed on the film roll, and the side faces of the positioning mechanism are tightly attached to the two sides of the film roll. The film cutting device has the advantages that the movable positioning mechanism is matched with the cutting mechanism, the technical problem that an existing film cutting device of the paperboard film laminating machine is low in precision is solved, and film cutting precision is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of cardboard production, in particular to a film dividing device of a cardboard laminating machine. Background Art

[0002] As a crucial piece of equipment in the modern packaging industry, cardboard laminating machines primarily apply a film evenly to the surface of cardboard through a specific process, enhancing its aesthetics, water resistance, and wear resistance. With technological advancements, laminating machine technology has continued to evolve and improve, evolving from simple manual operation to fully automated control, significantly improving both efficiency and precision. Existing cardboard laminating machines typically integrate multiple functions, such as automatic loading, positioning, heating, pressing, cooling, and cutting, to meet the laminating needs of cardboard of varying thicknesses and sizes. The range of laminating materials has expanded from traditional PVC film to a variety of environmentally friendly materials, including PET and PE. This not only broadens the product's application range but also better meets market demands for environmental protection.

[0003] However, in practice, due to the large size of laminating film, especially in the width direction, it often needs to be cut in the middle to facilitate subsequent processing or to meet specific product requirements. Currently, this cutting operation is mostly completed during the film conveyor. Due to the softness of the film material and the slight left and right deviation that may occur during high-speed conveyance, it is difficult to accurately control the cutting position, which can easily lead to uneven cutting edges. This phenomenon not only affects the appearance quality of the laminated cardboard, but can also cause problems in subsequent processing steps, thereby affecting the quality of the final product. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a film splitting device for a cardboard laminating machine, which solves the technical problem of low precision of the film cutting device of the prior cardboard laminating machine.

[0005] According to an embodiment of the present invention, a film splitting device for a cardboard laminating machine includes:

[0006] Unwinding mechanism: The unwinding mechanism is provided with a film roll:

[0007] Positioning and cutting mechanism: comprising a support arm and a support roller arranged on the support arm, positioning mechanisms are provided at both ends of the support roller, and a plurality of cutting mechanisms are evenly distributed in the middle of the support roller, and both the cutting mechanism and the positioning mechanism can move along the support roller;

[0008] The cutting mechanism is pressed against the film roll, and the side surfaces of the positioning mechanism are closely attached to both sides of the film roll.

[0009] The technical principle of the utility model is: after determining the required film width, first move the positioning mechanism along the support roller to stick to the film roll to achieve positioning, then move the cutting mechanism along the support roller to the position required for cutting, which position is determined by the required film width, and then let the cutting mechanism press tightly on the film roll. When the film roll is led out by the cardboard laminating machine, the film roll will rotate and the size cutting mechanism will cut the film.

[0010] That is, the film is cut on the roll, and the film is not prone to left or right deviation at this time, ensuring the accuracy of the film after cutting.

[0011] Compared with the prior art, the present invention has the following beneficial effects: by combining a movable positioning mechanism with a cutting mechanism, it solves the technical problem of low precision of the film cutting device of the existing cardboard laminating machine and ensures the accuracy of film cutting.

[0012] Furthermore, the unwinding mechanism includes a support frame and an unwinding roller arranged on the support frame, the support frame is provided with an arc groove, and both ends of the unwinding roller are placed in the arc groove using bearings.

[0013] Furthermore, two support arms are provided, and a support frame shared with the unwinding roller is installed at the bottom of the two support arms, and both ends of the support roller are connected to the two support arms by bearings.

[0014] Furthermore, the positioning mechanism includes a positioning wheel and an extension arm, the extension arm connects the positioning wheel and the support roller, and the positioning wheels of the positioning mechanism at both ends are close to each other and have a protrusion at the center of one side, and the protrusion presses on the film roll.

[0015] Furthermore, the cutting mechanism includes a cutting wheel and an extension arm, and the extension arm connects the cutting wheel and the support roller.

[0016] Furthermore, a movable hole is provided at one end of the extending arm, and the movable hole is sleeved on the supporting roller. A fixing screw is passed through the extending arm corresponding to the movable hole, and the bottom of the fixing screw is in close contact with the supporting roller.

[0017] Furthermore, a stop roller is provided on the side of the support roller away from the unwinding mechanism, and both ends of the stop roller are also provided on two support arms.

[0018] Furthermore, the support roller is provided with a scale, the zero position of the scale is located at the midpoint of the support roller, and the scale values ​​increase sequentially toward both sides. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of a film splitting device according to an embodiment of the present invention.

[0020] Figure 2This is a schematic structural diagram of the bit cutting mechanism of an embodiment of the utility model.

[0021] Figure 3 This is a schematic diagram of the positioning wheel position structure of an embodiment of the present utility model.

[0022] Figure 4 This is a schematic diagram of the cutting mechanism structure of an embodiment of the present utility model.

[0023] Figure 5 This is a schematic diagram of the installation structure of the extension arm of an embodiment of the present utility model.

[0024] Figure 6 This is a schematic diagram of the support roller structure of an embodiment of the utility model.

[0025] In the above drawings: 100, unwinding mechanism; 101, film roll; 110, support frame; 111, arc groove; 120, unwinding roller; 200, positioning and cutting mechanism; 210, support arm; 220, support roller; 221, scale; 230, positioning mechanism; 231, positioning wheel; 232, protrusion; 240, cutting mechanism; 241, cutting wheel; 250, extending arm; 251, movable hole; 252, fixing screw; 260, deactivation roller. DETAILED DESCRIPTION

[0026] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0027] like Figure 1 The film cutting device of the cardboard laminating machine shown includes an unwinding mechanism 100 and a positioning and cutting mechanism 200 .

[0028] like Figure 1 As shown, a film roll 101 is provided on the unwinding mechanism 100. Specifically, the unwinding mechanism 100 includes a support frame 110 and an unwinding roller 120 provided on the support frame 110, wherein the support frame 110 is provided with an arc groove 111, and both ends of the unwinding roller 120 are placed in the arc groove 111 with bearings. When installing the film roll 101, the unwinding roller 120 can be directly taken out from the arc groove 111.

[0029] like Figure 1-2As shown, the positioning and cutting mechanism 200 includes a support arm 210 and a support roller 220 mounted on the support arm 210. Two support arms 210 are provided, and a support frame 110 shared with the unwinding roller 120 is mounted at the bottom of each support arm 210. Bearings are used at both ends of the support roller 220 to connect to the two support arms 210. Positioning mechanisms 230 are provided at both ends of the support roller 220, and several cutting mechanisms 240 are evenly distributed along the middle of the support roller 220. This embodiment uses only one cutting mechanism 240. Both the cutting mechanism 240 and the positioning mechanism 230 can move along the support roller 220 to adjust the cutting position. The cutting mechanism 240 presses against the film roll 101 to perform the cutting, while the positioning mechanism 230's sides are pressed against both sides of the film roll 101 to locate the cutting position.

[0030] like Figure 2-4 As shown, the positioning mechanism 230 includes a positioning wheel 231 and an extending arm 250. The extending arm 250 connects the positioning wheel 231 and the support roller 220. The positioning wheels 231 of the positioning mechanisms 230 at both ends are close to each other and have a protrusion 232 integrally formed in the center of one side. The protrusion 232 presses on the film roll 101.

[0031] The cutting mechanism 240 includes a cutting wheel 241 and an extending arm 250 , wherein the extending arm 250 connects the cutting wheel 241 and the supporting roller 220 . The cutting wheel 241 is used for cutting, and its cutting edge is a smooth blade.

[0032] Specific examples Figure 2-5 As shown, one end of the extension arm 250 is provided with a movable hole 251, which is sleeved on the support roller 220. A fixing screw 252 is passed through the extension arm 250 corresponding to the movable hole 251, and the bottom of the fixing screw 252 is in close contact with the support roller 220. When it is necessary to move, the fixing screw 252 is loosened; when it is necessary to fix, the fixing screw 252 is tightened.

[0033] like Figure 1-2 As shown, a stop roller 260 is further provided on the side of the support roller 220 away from the unwinding mechanism 100. Both ends of the stop roller 260 are also provided on the two support arms 210. The stop roller 260 is used to dock the cutting mechanism 240 that does not need to work.

[0034] like Figure 6 As shown, a scale 221 is provided on the support roller 220, and the zero position of the scale 221 is located at the midpoint of the support roller 220. The value of the scale 221 increases toward both sides. In this way, the length of the fabric roll can be obtained by simply adding the values ​​of the scale 221 at both sides of the fabric roll, which is also convenient for determining the width during cutting.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A film splitting device for a cardboard laminating machine, characterized in that: include: Unwinding mechanism: The unwinding mechanism is provided with a film roll: Positioning and cutting mechanism: comprising a support arm and a support roller arranged on the support arm, positioning mechanisms are provided at both ends of the support roller, and a plurality of cutting mechanisms are evenly distributed in the middle of the support roller, and both the cutting mechanism and the positioning mechanism can move along the support roller; The cutting mechanism is pressed against the film roll, and the side surfaces of the positioning mechanism are closely attached to both sides of the film roll.

2. The film splitting device of a cardboard laminating machine according to claim 1, characterized in that: The unwinding mechanism includes a support frame and an unwinding roller arranged on the support frame. The support frame is provided with an arc groove, and both ends of the unwinding roller are placed in the arc groove by bearings.

3. The film splitting device of a cardboard laminating machine according to claim 2, characterized in that: There are two support arms, and a support frame shared with the unwinding roller is installed at the bottom of the two support arms. The two ends of the support roller are connected to the two support arms by bearings.

4. The film splitting device of a cardboard laminating machine according to claim 1, characterized in that: The positioning mechanism includes a positioning wheel and an extension arm, the extension arm connects the positioning wheel and the support roller, the positioning wheels of the positioning mechanism at both ends are close to each other and a protrusion is provided at the center of one side, and the protrusion presses on the film roll.

5. The film splitting device of a cardboard laminating machine according to claim 1, characterized in that: The cutting mechanism comprises a cutting wheel and an extension arm, wherein the extension arm connects the cutting wheel and the supporting roller.

6. The film splitting device of a cardboard laminating machine according to claim 4 or 5, characterized in that: One end of the extending arm is provided with a movable hole, the movable hole is sleeved on the supporting roller, and a fixing screw is passed through the extending arm corresponding to the movable hole, and the bottom of the fixing screw is in close contact with the supporting roller.

7. The film splitting device of a cardboard laminating machine according to claim 3, characterized in that: A stop roller is further provided on the side of the support roller away from the unwinding mechanism, and both ends of the stop roller are also provided on two support arms.

8. The film splitting device of a cardboard laminating machine according to claim 1, characterized in that: The support roller is provided with a scale, the zero position of the scale is located at the midpoint of the support roller, and the scale values ​​increase sequentially toward both sides.

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