Cut-off mechanism and packaging line thereof

Abstract

The utility model discloses a kind of cutting mechanism, it is related to film packaging production line film cutting technical field, including bearing block, connecting mechanism, cutting knife, driving mechanism, mounting plate, limit rod and adjusting mechanism, connecting mechanism is installed on the upper surface of bearing block, two cutting knives are oppositely installed on the opposite side of bearing block and connecting mechanism, driving mechanism is installed on the bottom of bearing block, driving mechanism is used for the movement of bearing block horizontal direction, mounting plate is installed on the end of driving mechanism, limit rod is arranged between bearing block and connecting mechanism, adjusting mechanism is installed between cutting knife and limit rod, between cutting knife and connecting mechanism. The utility model is designed by using double cutting knife shearing, ensure that film side cutout is smooth without burr, the setting of driving mechanism improves cutting accuracy, and through the cooperation of limit rod and connecting rod and adjusting mechanism, avoid the jamming or film cutting failure caused by blade spacing deviation, improve cutting stability.

Description

Technical Field

[0001] This utility model relates to the field of film cutting technology in film packaging production lines, and in particular to a cutting mechanism and its packaging line. Background Technology

[0002] In the packaging production line, the cutting of film materials is one of the key processing steps, and its cutting accuracy and stability directly affect the packaging quality and production efficiency.

[0003] Traditional film cutting mechanisms typically employ fixed blades or single-blade cutting methods. However, due to the toughness of the film, single-blade cutting can easily lead to burrs, streaks, or incomplete cuts at the film edges, affecting the packaging appearance and sealing performance during film packaging. This results in insufficient cutting precision, and after prolonged use, the blades of the cutting knife are prone to incomplete cuts due to vibration or wear, affecting the cutting stability of the cutting knife. Utility Model Content

[0004] The purpose of this invention is to provide a cutting mechanism and its packaging line to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cutting mechanism, comprising:

[0006] Bearing block;

[0007] A connecting mechanism is mounted on the upper surface of the support block;

[0008] Two cutting blades are mounted opposite each other on the opposite side of the support block and the connecting mechanism;

[0009] A drive mechanism is mounted on the bottom of the support block and is used for horizontal movement of the support block;

[0010] Mounting plate, which is mounted on the end of the drive mechanism, is used to connect the drive mechanism to the film packaging line machine;

[0011] A limiting rod is provided between the bearing block and the connecting mechanism;

[0012] An adjustment mechanism is installed between the cutting blade and the limiting rod, and between the cutting blade and the connecting mechanism.

[0013] Preferably, the connecting mechanism includes:

[0014] An electric telescopic rod, wherein the electric telescopic rod is fixedly inserted through one end of the bearing block;

[0015] Mounting block, which is fixed to the telescopic end of the electric telescopic pole;

[0016] A connecting rod is fixed to the end of the mounting block away from the electric telescopic rod.

[0017] Preferably, the two cutting blades are respectively inserted and installed at opposite ends of the support block and the mounting block, and the blades on opposite sides of the two cutting blades slide together in a scissor-like structure.

[0018] Preferably, the limiting rod is disposed adjacent to the blade surface of one of the cutting blades, and the connecting rod is disposed adjacent to the blade surface of the other cutting blade.

[0019] Preferably, the drive mechanism includes:

[0020] A lead screw, the lead screw threaded through the middle of the bearing block;

[0021] The two positioning rods are slidably inserted into each of the two sides of the bearing block;

[0022] A servo motor, wherein the output end of the servo motor is connected to one end of a lead screw for transmission.

[0023] Preferably, the end of the lead screw is rotatably connected to the middle of the adjacent mounting plate via a bearing, the servo motor is fixed to the adjacent mounting plate, and the end of the positioning rod is fixedly connected to the outer wall of the adjacent mounting plate.

[0024] Preferably, the adjustment mechanism includes:

[0025] The screw is rotatably inserted into the middle of an adjacent cutting blade, and the two screws are respectively threaded into the middle of a connecting rod and a limiting rod;

[0026] A nut, the thread of which is inserted into one end of a screw, is used to correct the deviation of the cutting blade.

[0027] Another objective of this invention is to provide a packaging line that includes the aforementioned cutting mechanism.

[0028] The technical effects and advantages of this utility model are as follows:

[0029] This invention employs a dual-blade counter-cutting design with scissor-like blades that slide together to ensure a smooth, burr-free cut on the film's edges. The drive mechanism enhances the stability of the supporting block's sliding motion, allowing the cutter to steadily cut the film, improving cutting accuracy and meeting the continuous cutting requirements of high-speed packaging lines. Furthermore, the combination of the limiting rod, connecting rod, and adjustment mechanism facilitates blade correction, preventing jamming or cutting failure caused by blade spacing deviations, reducing the spacing offset between the two cutters, and improving cutting stability. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0031] Figure 2 This utility model Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0032] Figure 3 This is a side sectional view of the mounting block of this utility model.

[0033] In the diagram: 1. Bearing block; 2. Connecting mechanism; 21. Electric telescopic rod; 22. Mounting block; 23. Connecting rod; 3. Cutting blade; 4. Drive mechanism; 41. Lead screw; 42. Positioning rod; 43. Servo motor; 5. Mounting plate; 6. Limiting rod; 7. Adjustment mechanism; 71. Screw; 72. Nut. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] This utility model provides, for example Figure 1-3 The cutting mechanism shown includes a support block 1, a connecting mechanism 2, a cutting blade 3, a driving mechanism 4, a mounting plate 5, a limiting rod 6, and an adjusting mechanism 7. The connecting mechanism 2 is installed on the upper surface of the support block 1. Two cutting blades 3 are installed opposite each other on the opposite side of the support block 1 and the connecting mechanism 2. The two cutting blades 3 are fitted together to cut the side of the packaging film on the packaging line. The driving mechanism 4 is installed at the bottom of the support block 1. The driving mechanism 4 is used to move the support block 1 horizontally, so that the two fitted cutting blades 3 can continuously cut the packaging film. The mounting plate 5 is installed at the end of the driving mechanism 4. The mounting plate 5 is used to connect the driving mechanism 4 to the film packaging line machine. The limiting rod 6 is set between the support block 1 and the connecting mechanism 2. The adjusting mechanism 7 is installed between the cutting blade 3 and the limiting rod 6, and between the cutting blade 3 and the connecting mechanism 2. The adjusting mechanism 7 is used to correct the deviation of the cutting blade 3 and prevent the two cutting blades 3 from being too far apart or too close, which would cause the film to be unable to be cut or the cutting to be stuck.

[0036] The connecting mechanism 2 includes an electric telescopic rod 21, a mounting block 22, and a connecting rod 23. The electric telescopic rod 21 is fixedly inserted into one end of the bearing block 1. The mounting block 22 is fixed to the telescopic end of the electric telescopic rod 21. The connecting rod 23 is fixed to the end of the mounting block 22 away from the electric telescopic rod 21. Two cutting blades 3 are respectively inserted into the opposite ends of the bearing block 1 and the mounting block 22. The blades on the opposite sides of the two cutting blades 3 slide together in a scissor-like structure. The electric telescopic rod 21 is electrically connected to an external power source through an external switch. The drive facilitates the lifting and lowering of the mounting block 22, enabling its two cutting blades 3 to cut the sides of the film using a shearing motion. The limiting rod 6 is adjacent to the blade surface of one of the cutting blades 3 and is slidably interlocked with one side of the mounting block 22 to improve the stability of the sliding of the mounting block 22. The connecting rod 23 is adjacent to the blade surface of the other cutting blade 3, allowing the connecting rod 23 and the limiting rod 6 to work with the adjustment mechanism 7 to adjust the bias of the cutting blade 3 and prevent the spacing between the two cutting blades 3 from becoming unstable due to long-term use.

[0037] Additionally, the drive mechanism 4 includes a lead screw 41, positioning rods 42, and a servo motor 43. The lead screw 41 is threaded through the middle of the support block 1. The two positioning rods 42 are slidably connected to the two sides of the support block 1. The output end of the servo motor 43 is connected to one end of the lead screw 41. The end of the lead screw 41 is rotatably connected to the middle of the adjacent mounting plate 5 via a bearing. The servo motor 43 is fixed to the adjacent mounting plate 5. The ends of the positioning rods 42 are fixedly connected to the outer wall of the adjacent mounting plate 5. The servo motor 43 is electrically connected to an external power supply via an external switch. Driven by the servo motor 43, the lead screw 41 can rotate. Under the sliding constraint of the two positioning rods 42, the support block 1 can move linearly along the rotation direction of the lead screw 41, allowing the cutting blade 3 to cut the support block 1. Figure 1 The membrane shown by the dashed line is cut to improve cutting stability.

[0038] Furthermore, the adjustment mechanism 7 includes a screw 71 and a nut 72. The screw 71 is rotatably inserted into the middle of the adjacent cutting blade 3. The two screws 71 are respectively threaded into the middle of the connecting rod 23 and the limiting rod 6. The nut 72 is threaded into one end of the screw 71. The cooperation between the nut 72 and the screw 71 is used for blade correction of the cutting blade 3. By setting the nut 72, the random rotation of the screw 71 is reduced, so that it can correct the blade of the cutting blade 3 and improve the stability of the two cutting blades 3 in use.

[0039] like Figure 1 As shown, this embodiment provides a packaging line, which includes the cutting mechanism described above.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cutting mechanism, characterized in that, include: Bearing block (1); A connecting mechanism (2) is mounted on the upper surface of the support block (1); Cutting blades (3), two cutting blades (3) are mounted opposite each other on the side opposite the support block (1) and the connecting mechanism (2); A drive mechanism (4) is installed at the bottom of the support block (1) and is used for the horizontal movement of the support block (1). Mounting plate (5), which is mounted on the end of the drive mechanism (4), is used to connect the drive mechanism (4) to the film packaging line machine; A limiting rod (6) is provided between the bearing block (1) and the connecting mechanism (2); Adjustment mechanism (7) is installed between the cutting blade (3) and the limiting rod (6), and between the cutting blade (3) and the connecting mechanism (2); The adjustment mechanism (7) includes: The screw (71) is rotatably inserted into the middle of the adjacent cutting blade (3), and the two screws (71) are respectively threaded into the middle of the connecting rod (23) and the limiting rod (6); Nut (72), the nut (72) is threaded through one end of screw (71), and the cooperation between the nut (72) and screw (71) is used for the blade correction of the cutting blade (3).

2. The cutting mechanism according to claim 1, characterized in that, The connecting mechanism (2) includes: An electric telescopic rod (21) is fixedly inserted into one end of a bearing block (1); Mounting block (22), which is fixed to the telescopic end of the electric telescopic rod (21); A connecting rod (23) is fixed to the end of the mounting block (22) away from the electric telescopic rod (21).

3. The cutting mechanism according to claim 2, characterized in that, The two cutting blades (3) are respectively inserted and installed at opposite ends of the support block (1) and the mounting block (22), and the blades of the two cutting blades (3) on opposite sides are in a scissor-like structure and slide together.

4. A cutting mechanism according to claim 2, characterized in that, The limiting rod (6) is disposed adjacent to the blade surface of one of the cutting blades (3), and the connecting rod (23) is disposed adjacent to the blade surface of the other cutting blade (3).

5. A cutting mechanism according to claim 1, characterized in that, The drive mechanism (4) includes: A lead screw (41) is threaded through the middle of a bearing block (1); Positioning rods (42), the two positioning rods (42) are respectively slidably inserted into the two sides of the bearing block (1); Servo motor (43), the output end of which is connected to one end of lead screw (41) for transmission.

6. A cutting mechanism according to claim 5, characterized in that, The end of the lead screw (41) is rotatably connected to the middle of the adjacent mounting plate (5) through a bearing. The servo motor (43) is fixed on the adjacent mounting plate (5). The end of the positioning rod (42) is fixedly connected to the outer wall of the adjacent mounting plate (5).

7. A packaging line, characterized in that, The packaging line includes a cutting mechanism as described in any one of claims 1-6.

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