Automatic cutting machine for sealing film

Abstract

The utility model relates to the technical field of cutting devices, in particular to an automatic cutting machine for a sealing film. Comprising a mounting box, an unwinding roller, an upper pressing roller, a lower pressing roller, a cutter and two transmission assemblies. A through hole is formed in the mounting box; the unwinding roller is rotationally mounted on the inner side of the mounting box; the upper pressing roller is rotationally mounted on the inner side of the mounting box, the lower pressing roller is located below the upper pressing roller, a rotating frame is arranged on the inner side of the mounting box, the lower pressing roller is rotationally mounted on the rotating frame, and an elastic assembly is connected between the rotating frame and the bottom end of the inner wall of the mounting box; the cutter is located on the inner side of the mounting box, and the cutting base is arranged below the cutter. The two transmission assemblies are installed at the two ends of the inner side of the installation box correspondingly. Each transmission assembly comprises a rotary disc, a movable piece, a movable shaft, a gear ring and a gear. According to the technical scheme, when the sealing film is pulled to move, automatic cutting work of a film body can be achieved, the cutting lengths are the same every time, the practicability of the sealing film cutting device is improved, and waste of the film body is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cutting device technical field, especially a kind of automatic cutting machine of sealing film. BACKGROUND

[0002] Sealing film is a kind of wall-hanging sealing film placement and cutting device composite material, and the main features of sealing film are good sealing performance, anti-fake effect, preventing product content from volatilizing and pollution, and odorless sealing performance. It is suitable for PET, PVC, PP, PE, PS, AS and other types of injection-molded cups, injection-molded bottles, vacuum-formed boxes, blow-molded bottles, blow-molded cups, blow-molded parts and other non-metallic containers. It is widely used in the fields of cosmetic packaging sealing film, daily necessities packaging sealing film, food packaging sealing film, pharmaceutical packaging sealing film and chemical packaging sealing film.

[0003] When sealing the food on the assembly line, the sealing film needs to be cut to a specific length for sealing the package. However, the existing cutting method for the film body mostly relies on manual cutting, as automatic cutting equipment is relatively expensive. Manual cutting of the film body based on intuition may result in overlong or too short film body, and too short film body may not be used, and both overlong and too short film body will cause waste of the film body. UTILITY MODEL CONTENT

[0004] The utility model aims at the problems in the background art and provides an automatic cutting machine for sealing film.

[0005] The technical scheme of the utility model is an automatic cutting machine for sealing film, which comprises:

[0006] A mounting box is provided with a through hole on the top.

[0007] A pay-off roller is rotatably installed on the inner side of the mounting box.

[0008] An upper pressing roller is rotatably installed on the inner side of the mounting box, and a lower pressing roller is located below the upper pressing roller. A rotating frame is arranged on the inner side of the mounting box, and the lower pressing roller is rotatably installed on the rotating frame. An elastic component is connected between the rotating frame and the bottom end of the inner wall of the mounting box.

[0009] A cutting knife is arranged on the inner side of the mounting box, and an extension rod is connected to the cutting knife. The upper end of the extension rod is connected to the inner wall of the mounting box. A cutting seat is arranged below the cutting knife, and a cutting knife groove is formed in the cutting seat.

[0010] Two groups of transmission assemblies are installed at the two ends of the inner side of the mounting box, and each transmission assembly comprises a rotating disc, a movable piece, a movable shaft, a gear ring and a gear, wherein the rotating disc is rotatably installed at the inner side of the mounting box, the movable shaft is arranged on the rotating disc, a fixing rod is connected between the movable piece and the end of the cutter, the movable piece is provided with a transverse sliding hole, the movable shaft is movably arranged in the inner side of the transverse sliding hole, the gear is installed at the end of the rotating shaft of the upper compression roller, and the gear ring is installed at the outer periphery of the rotating disc and is in meshing connection with the gear.

[0011] Preferably, the rotating shaft of the upper compression roller movably extends to the outer side of the mounting box and is provided with a second rotating disc.

[0012] Preferably, mounting cylinders are threadedly connected to the two sides of the mounting box, and a first rotating disc is installed on the mounting cylinder.

[0013] Preferably, the upper end of the mounting box is provided with an opening and is rotatably provided with a cover plate.

[0014] Preferably, the elastic assembly comprises a guide rod, a spring and a limiting block, wherein the guide rod is vertically arranged at the bottom end of the inner side of the mounting box, the guide rod movably penetrates through the rotating frame and the upper end thereof is connected with the limiting block, and the spring is sleeved on the guide rod.

[0015] Preferably, the mounting box is made of transparent material.

[0016] Compared with the prior art, the technical scheme has the beneficial technical effects that: the automatic cutting work of the film body can be realized when the sealing film is pulled to move, and the length of each cutting is the same, the practicability is improved, and the waste of the film body is avoided. BRIEF DESCRIPTION OF DRAWINGS

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

[0018] Figure 2 It is a sectional view of the utility model.

[0019] Figure 3 It is Figure 2 the A place local amplification structure schematic view of.

[0020] The drawings show that: 1, the mounting box;101, the perforation;2, the unwinding roller;3, the upper compression roller;4, the lower compression roller;5, the rotating frame;6, the rotating disc;7, the cutter;8, the movable piece;9, the movable shaft;10, the fixing rod;11, the gear ring;12, the cutting seat;13, the gear;14, the cover plate;15, the mounting cylinder;17, the first rotating disc;18, the second rotating disc;19, the guide rod;20, the spring;21, the limiting block. DETAILED DESCRIPTION

[0021] Example one

[0022] As Figures 1-3 The automatic cutting machine for sealing film comprises a mounting box 1, a unwinding roller 2, an upper pressing roller 3, a lower pressing roller 4, a cutter 7 and two sets of transmission assemblies.

[0023] A through hole 101 is formed on the mounting box 1; the mounting box 1 is made of transparent material, so that the operator can easily observe the transmission of the film in the mounting box 1; the unwinding roller 2 is rotatably installed on the inner side of the mounting box 1.

[0024] The upper pressing roller 3 is rotatably installed on the inner side of the mounting box 1, the rotating shaft of the upper pressing roller 3 extends to the outside of the mounting box 1 and is provided with a second rotating disc 18; the lower pressing roller 4 is located below the upper pressing roller 3; a rotating frame 5 is arranged on the inner side of the mounting box 1; the lower pressing roller 4 is rotatably installed on the rotating frame 5; a elastic assembly is connected between the rotating frame 5 and the bottom end of the inner wall of the mounting box 1, the elastic assembly comprises a guide rod 19, a spring 20 and a limiting block 21, wherein the guide rod 19 is vertically arranged on the inner side of the bottom end of the mounting box 1, the guide rod 19 extends through the rotating frame 5 and the upper end thereof is connected with the limiting block 21, and the spring 20 is sleeved on the guide rod 19; the arrangement of the elastic assembly enables the film to be clamped between the upper pressing roller 3 and the lower pressing roller 4, so that a certain pressure can be applied to the film, and the film can drive the movement of the upper pressing roller 3 and the lower pressing roller 4 during movement.

[0025] The cutter 7 is located on the inner side of the mounting box 1, the cutter 7 is connected with a telescopic rod (not shown), the telescopic rod comprises a sleeve and a movable rod, the movable rod is connected with the cutter 7, the other end of the movable rod is slidably arranged in the inner side of the sleeve, and the upper end of the sleeve is fixedly connected with the inner wall of the mounting box 1; the upper end of the telescopic rod is connected with the inner wall of the mounting box 1; a cutting seat 12 is arranged below the cutter 7, and a cutter groove is formed in the cutting seat 12.

[0026] The two sets of transmission assemblies are respectively arranged at the two ends of the inner side of the mounting box 1, the transmission assembly comprises a rotating disc 6, a movable piece 8, a movable shaft 9, a gear ring 11 and a gear 13, wherein the rotating disc 6 is rotatably installed on the inner side of the mounting box 1, the movable shaft 9 is arranged on the rotating disc 6, a fixed rod 10 is connected between the end of the cutter 7 and the movable piece 8, the movable piece 8 has a transverse sliding hole, the movable shaft 9 is movably arranged in the transverse sliding hole, the gear 13 is installed on the end of the rotating shaft of the upper pressing roller 3, and the gear ring 11 is installed on the outer periphery of the rotating disc 6 and is in meshing connection with the gear 13.

[0027] Specifically, the sealing film roll is wound on the unwinding roller 2, and one end of the sealing film roll passes between the upper pressing roller 3 and the lower pressing roller 4 and then passes out through the perforation 101; when the end of the sealing film is pulled to move, a certain pressure is caused to the traction of the sealing film due to the clamping of the upper pressing roller 3 and the lower pressing roller 4, the sealing film drives the upper pressing roller 3 and the lower pressing roller 4 to rotate synchronously when moving, the rotation of the upper pressing roller 3 drives the gear 13 to rotate, and the rotation of the gear 13 drives the rotating disc 6 to rotate, and under the cooperation of the movable part 8, the movable shaft 9 and the telescopic rod, the up-and-down reciprocating movement of the cutter 7 can be realized, when the movable shaft 9 rotates to the bottommost position, the cutter 7 also moves to the bottommost position, at this time, the cutter 7 automatically shears the sealing film, then the second rotating disc 18 is manually driven to rotate to realize the continuous unwinding of the sealing film, and after the end of the sealing film moves out of the perforation 101, the sealing film is manually pulled to move again.

[0028] Embodiment two

[0029] As Figure 2 shown, the sealing film automatic cutting machine provided in the embodiment is compared with the embodiment one, in the embodiment, the two sides of the mounting box 1 are threadedly connected with mounting cylinders 15, and the first rotating disc 17 is mounted on the mounting cylinders 15; the upper end of the mounting box 1 is provided with an opening and is rotationally mounted with a cover plate 14; the mounting cylinders 15 on the two sides are rotated to separate the mounting cylinders 15 from the mounting box 1, at this time, the end of the unwinding roller 2 moves out of the inner side of the mounting cylinder 15, then the cover plate 14 is opened to take out the unwinding roller 2 from the inner side of the mounting box 1, then the new sealing film roll can be replaced, through the above structure, the unwinding roller 2 can be conveniently disassembled and assembled.

[0030] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to this, within the knowledge range possessed by the person skilled in the art, various changes can be made on the premise of not departing from the purpose of the utility model.

Claims

1. An automatic sealing film cutting machine, characterized by comprising: The utility model relates to a cutting device for cutting film, which comprises: a mounting box (1) having a through hole (101) formed therein; a pay-off roller (2) rotatably mounted on the inner side of the mounting box (1); an upper pressing roller (3) rotatably mounted on the inner side of the mounting box (1) and a lower pressing roller (4) located below the upper pressing roller (3), wherein a rotating frame (5) is arranged on the inner side of the mounting box (1), the lower pressing roller (4) is rotatably mounted on the rotating frame (5), and an elastic assembly is connected between the rotating frame (5) and the bottom end of the inner wall of the mounting box (1); a cutter (7) located on the inner side of the mounting box (1), wherein an extension rod is connected to the cutter (7), the upper end of the extension rod is connected to the inner wall of the mounting box (1), a cutting seat (12) is arranged below the cutter (7), and a cutter groove is formed in the cutting seat (12); two sets of transmission assemblies, each of which is mounted on the inner side of the mounting box (1) at one end, wherein the transmission assembly comprises a rotating disc (6), a movable piece (8), a movable shaft (9), a gear ring (11), and a gear wheel (13), the rotating disc (6) is rotatably mounted on the inner side of the mounting box (1), the movable shaft (9) is arranged on the rotating disc (6), a fixed rod (10) is connected between the end of the cutter (7) and the movable piece (8), the movable piece (8) has a transverse sliding hole, the movable shaft (9) is movably arranged in the transverse sliding hole, the gear wheel (13) is mounted on the end of the rotating shaft of the upper pressing roller (3), and the gear ring (11) is mounted on the outer periphery of the rotating disc (6) and is in meshing connection with the gear wheel (13).

2. The automatic cutting machine for a sealing film according to claim 1, wherein The rotating shaft of the upper pressing roller (3) movably extends to the outside of the mounting box (1) and is provided with a second rotating disc (18).

3. The automatic cutting machine for a sealing film according to claim 1, wherein The mounting box (1) is provided with mounting cylinders (15) on both sides, and the mounting cylinders (15) are provided with a first rotating disc (17).

4. The automatic cutting machine for a sealing film according to claim 3, wherein The upper end of the mounting box (1) is provided with an opening and a cover plate (14) rotatably mounted thereon.

5. The automatic cutting machine for a sealing film according to claim 1, wherein The elastic assembly comprises a guide rod (19), a spring (20), and a limiting block (21), wherein the guide rod (19) is vertically arranged at the bottom end of the inner side of the mounting box (1), the guide rod (19) movably penetrates the rotating frame (5) and is connected to the limiting block (21) at the upper end, and the spring (20) is sleeved on the guide rod (19).

6. The automatic cutting machine for a sealing film according to claim 1, wherein The mounting box (1) is made of transparent material.

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