Cutting device for packaging machine

Abstract

The utility model relates to a cutting device for a packaging machine. Comprising a rack, a cutting assembly used for cutting packaging paper, a pushing rod used for driving the cutting assembly to move back and forth, a rotating rod rotationally connected to the rack, crankshaft connecting rods arranged at the two ends of the rotating rod and a rotating device used for driving the rotating rod to rotate. The two ends of the cutting assembly are connected with the push rods. The two groups of push rods are connected to the rack in a sliding manner; the other ends of the two groups of push rods are connected with the crankshaft connecting rods in a swinging manner; and the rotating device is mounted on the rack, and the rotating device is in transmission connection with the rotating rod. The technical problems that in an existing technical scheme, a cutting device usually adopts a mechanical blade to conduct cutting, a motor directly drives the blade to conduct reciprocating motion or rotating motion to achieve the cutting function, but the cutting mode is low in cutting precision, burrs are prone to being generated, and the packaging quality is affected are solved.

Description

Technical Field

[0001] This utility model relates to the field of packaging machines, and in particular to a cutting device for packaging machines. Background Technology

[0002] Currently, powdered foods and medicines are packaged in foil, bags, strips, or squares, such as health powders, instant coffee, and meal replacement powders. During production, the packaging of these products is achieved using powder packaging machines. The traditional working principle of a powder packaging machine is to inject powder into packaging paper, which is then sealed by a sealing device. In the use of packaging machines, the cutting device is one of the key components, mainly used to cut the packaging material into the required shape and size. Traditional cutting devices typically use mechanical blades, with a motor directly driving the blades to reciprocate or rotate to achieve the cutting function. However, this cutting method has low cutting precision, easily produces burrs, and affects packaging quality. Utility Model Content

[0003] This application provides a cutting device for a packaging machine, which solves the technical problem that the cutting device in the prior art usually uses a mechanical blade for cutting, and the cutting function is achieved by directly driving the blade to reciprocate or rotate through a motor. However, this cutting method has the technical problem of low cutting accuracy, easy to produce burrs, and affecting packaging quality.

[0004] The technical solution adopted in the embodiments of this application is as follows:

[0005] A cutting device for a packaging machine includes a frame, a cutting assembly for cutting packaging paper, a push rod for driving the cutting assembly to move back and forth, a rotating rod rotatably connected to the frame, crankshaft connecting rods disposed at both ends of the rotating rod, and a rotating device for driving the rotating rod to rotate; the push rods are connected to both ends of the cutting assembly; two sets of push rods are slidably connected to the frame; the other ends of the two sets of push rods are oscillatingly connected to the crankshaft connecting rod; the rotating device is mounted on the frame and is throttle-connected to the rotating rod.

[0006] A further technical solution is as follows: the rotating device includes a driving wheel, a driven wheel arranged around the rotating rod, a belt for driving the driven wheel to rotate, and a driving device mounted on the frame; the driving wheel is arranged on the output shaft of the driving device; the belt is arranged around the driving wheel and the driven wheel.

[0007] A further technical solution is that the driving device is an electric motor.

[0008] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0009] 1. The system employs a frame, cutting assembly, push rod, rotating rod, crankshaft connecting rod, and rotating device. The drive unit (motor) in the rotating device drives the drive wheel, which in turn drives the belt and driven wheel, ultimately rotating the rotating rod. Because the rotating rod has crankshaft connecting rods at both ends, and these connecting rods are oscillatingly connected to push rods, this design allows the two sets of push rods to move back and forth along the frame, thus driving the cutting assembly to move back and forth efficiently. Compared to traditional direct-drive blade methods, this transmission mechanism enables faster and more stable cutting, significantly improving cutting efficiency. The cutting assembly contains several sets of rounded blades arranged in a linear array, and the rotating device drives the cutting assembly back and forth, achieving more precise cutting. The rounded blade design effectively reduces errors during the cutting process, ensuring smooth cutting edges and significantly improving cutting accuracy. The cooperation between the rotating device and the crankshaft connecting rod ensures smooth movement of the cutting assembly. This design reduces mechanical vibration and impact, improves the overall stability of the equipment, and ensures the smoothness and reliability of the cutting process. By optimizing the transmission mechanism and cutting method, this invention achieves efficient cutting while reducing energy consumption. Compared with traditional cutting devices, this invention requires less energy for the same workload, thus saving energy costs. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of a cutting device for a packaging machine according to an embodiment of the present invention.

[0011] Figure 2 This is a schematic diagram illustrating a portion of the rotating assembly in an embodiment of this utility model.

[0012] In the diagram: 1. Frame; 2. Cutting assembly; 3. Push rod; 4. Rotating rod; 5. Crankshaft connecting rod; 6. Rotating device; 61. Drive wheel; 62. Driven wheel; 63. Belt; 64. Drive unit. Detailed Implementation

[0013] This application provides a cutting device for a packaging machine, which solves the technical problem that the cutting device in the prior art usually uses a mechanical blade for cutting, and the cutting function is achieved by directly driving the blade to reciprocate or rotate through a motor. However, this cutting method has the technical problem of low cutting accuracy, easy to produce burrs, and affecting packaging quality.

[0014] The technical solution in this application is to solve the above problems, and the overall approach is as follows:

[0015] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0016] A cutting device for a packaging machine, such as Figure 1 and Figure 2 As shown, the device includes a frame 1, a cutting assembly 2 for cutting packaging paper, a push rod 3 for driving the cutting assembly 2 to move back and forth, a rotating rod 4 rotatably connected to the frame 1, crankshaft connecting rods 5 set at both ends of the rotating rod 4, and a rotating device 6 for driving the rotating rod 4 to rotate. Push rods 3 are connected to both ends of the cutting assembly 2. Both sets of push rods 3 are slidably connected to the frame 1. The other end of both sets of push rods 3 is oscillatingly connected to the crankshaft connecting rod 5. The rotating device 6 is mounted on the frame 1 and is drively connected to the rotating rod 4. The cutting assembly 2 is equipped with several sets of rounded corner blades arranged in a linear array; the packaging paper can be cut by the back-and-forth movement of the rounded corner blades.

[0017] The rotating device 6 includes a driving wheel 61, a driven wheel 62 arranged around the rotating rod 4, a belt 63 for driving the driven wheel 62 to rotate, and a drive device 64 mounted on the frame 1. The driving wheel 61 is arranged on the output shaft of the drive device 64. The belt 63 is arranged around the driving wheel 61 and the driven wheel 62.

[0018] The drive unit 64 is a motor.

[0019] The drive device 64 in the rotating device 6 drives the driving wheel 61 to rotate, which in turn drives the belt 63 and the driven wheel 62 to rotate simultaneously, thus driving the rotating rod 4 to rotate. Since the rotating rod 4 has crankshaft connecting rods 5 at both ends, and each of the two sets of crankshaft connecting rods 5 is oscillatingly connected to a push rod 3, when the rotating rod 4 rotates, driving the two sets of crankshaft connecting rods 5 to rotate, the two sets of push rods 3 can move back and forth along the frame 1. The back-and-forth movement of the two sets of push rods 3 along the frame 1 drives the cutting assembly 2 to move back and forth, thereby achieving the cutting of the packaging paper.

[0020] The design incorporates a frame 1, cutting assembly 2, push rod 3, rotating rod 4, crankshaft connecting rod 5, and rotating device 6. The drive device 64 (motor) in the rotating device 6 drives the drive wheel 61 to rotate, which in turn drives the belt 63 and driven wheel 62 to rotate simultaneously, ultimately rotating the rotating rod 4. Since the rotating rod 4 has crankshaft connecting rods 5 at both ends, and each set of crankshaft connecting rods 5 is oscillatingly connected to the push rod 3, this design allows the two sets of push rods 3 to move back and forth along the frame 1, thereby driving the cutting assembly 2 to move back and forth efficiently. Compared to the traditional direct-drive blade method, this transmission mechanism enables faster and more stable cutting, significantly improving cutting efficiency. The cutting assembly 2 contains several sets of rounded corner blades arranged in a linear array, and the rotating device 6 drives the cutting assembly to move back and forth, achieving more precise cutting. The rounded corner blade design effectively reduces errors during the cutting process, ensuring smooth cutting edges and significantly improving cutting accuracy. The smooth movement of the cutting assembly 2 is achieved through the cooperation of the rotating device 6 and the crankshaft connecting rod 5. This design reduces mechanical vibration and impact, improves the overall stability of the equipment, and ensures the smoothness and reliability of the cutting process. By optimizing the transmission mechanism and cutting method, this invention achieves efficient cutting while reducing energy consumption. Compared with traditional cutting devices, this invention requires less energy for the same workload, thus saving energy costs.

[0021] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0022] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A cutting device for a packaging machine, characterized in that, The device includes a frame (1), a cutting assembly (2) for cutting packaging paper, a push rod (3) for driving the cutting assembly (2) to move back and forth, a rotating rod (4) rotatably connected to the frame (1), a crankshaft connecting rod (5) disposed at both ends of the rotating rod (4), and a rotating device (6) for driving the rotating rod (4) to rotate; the push rod (3) is connected to both ends of the cutting assembly (2); both sets of push rods (3) are slidably connected to the frame (1); the other end of both sets of push rods (3) is oscillatingly connected to the crankshaft connecting rod (5); the rotating device (6) is mounted on the frame (1), and the rotating device (6) is throttle connected to the rotating rod (4).

2. The cutting device for a packaging machine as described in claim 1, characterized in that, The rotating device (6) includes a driving wheel (61), a driven wheel (62) arranged around the rotating rod (4), a belt (63) for driving the driven wheel (62) to rotate, and a drive device (64) mounted on the frame (1); the driving wheel (61) is arranged on the output shaft of the drive device (64); the belt (63) is arranged around the driving wheel (61) and the driven wheel (62).

3. The cutting device for a packaging machine as described in claim 2, characterized in that, The drive device (64) is a motor.

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