Packaging bag film slitting device

Abstract

The utility model provides a packaging bag film slitting device, which is used for slitting a packaging bag film to form a packaging bag, and comprises a linear moving part capable of linearly moving back and forth in the width direction of the packaging bag film; the circular cutter is arranged on the linear moving part and can be driven by the linear moving part to do reciprocating linear movement action in the width direction; and the rotating structure is connected with the circular cutter, so that the circular cutter can rotate while linearly moving back and forth in the width direction. The linear moving part is a ball screw linear module and comprises a sliding table arranged in the width direction and a sliding block installed on the sliding table in a sliding mode, and the circular cutter is rotatably installed on the sliding block through a pivot arranged in the length direction of the packaging bag film. The rotating structure comprises a rotating gear and a synchronous belt meshed with the rotating gear and arranged in the width direction, and the rotating gear is rotatably installed on the pivot and fixedly connected with the circular cutter.

Description

Technical Field

[0001] This utility model belongs to the field of packaging equipment technology, specifically relating to a packaging bag film cutting device. Background Technology

[0002] Packaging film is a raw material used for packaging bags and is widely used in the packaging of various products. During the product packaging process, continuous packaging film needs to be cut into individual packaging bags.

[0003] In existing technologies, slitting devices for packaging film typically employ straight-tooth reciprocating cutters, which can effectively slit the packaging film. However, this type of slitting device has the following drawbacks: after completing one slitting operation, the cutter needs to return to its initial state before the next slitting can be performed. In other words, the cutter only slits the packaging film on the outward journey, and does not slit the packaging film on the return journey. This results in low cutting efficiency for the slitting device, which cannot meet the current demands of rapid packaging production. Utility Model Content

[0004] To address the shortcomings of the existing technology, the purpose of this utility model is to provide a packaging bag film cutting device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a packaging bag film cutting device for cutting packaging bag film to form packaging bags. It has the following features: a linear moving part that can reciprocate linearly in the width direction of the packaging bag film; a circular cutter disposed on the linear moving part that can reciprocate linearly in the width direction under the drive of the linear moving part; and a rotating structure connected to the circular cutter that enables the circular cutter to rotate while reciprocating linearly in the width direction.

[0007] The packaging bag film slitting device provided by this utility model may also have the following features: wherein the linear moving component is a ball screw linear module, including a slide arranged along the width direction and a slider slidably mounted on the slide, and a circular cutter is rotatably mounted on the slider via a pivot arranged along the length direction of the packaging bag film.

[0008] The packaging bag film cutting device provided by this utility model may also have the following features: the rotating structure includes a rotating gear and a synchronous belt that meshes with the rotating gear and is arranged along the width direction. The rotating gear is rotatably mounted on a pivot and fixedly connected to a circular cutter.

[0009] The packaging bag film cutting device provided by this utility model may also have the following feature: the rotating structure further includes two auxiliary wheels, which are symmetrically arranged on both sides of the rotating gear and rotatably mounted on the slider.

[0010] The packaging bag film cutting device provided by this utility model may also have the following features: the linear moving part further includes a ball screw assembly and a drive motor, the rotating shaft of the drive motor is coaxially connected to the screw in the ball screw assembly, and the slider is connected to the ball nut in the ball screw assembly.

[0011] The packaging bag film cutting device provided by this utility model may also have the following feature: it further includes a cutter holder for guiding the reciprocating linear movement of the circular cutter.

[0012] Compared with the prior art, the advantages of this utility model are as follows: Because it has a linear moving component, a circular cutter, and a rotating structure, the linear moving component can reciprocate linearly in the width direction of the packaging film. The circular cutter is set on the linear moving component and can reciprocate linearly in the width direction under the drive of the linear moving component. The rotating structure is connected to the circular cutter, enabling the circular cutter to rotate while reciprocating linearly in the width direction. Therefore, the packaging film cutting device of this utility model can complete the cutting action of the packaging film on both the outward and return strokes of the circular cutter. It has a fast cutting speed, high efficiency, and better meets the needs of rapid packaging production and processing. Moreover, it has a compact structure and saves space. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural schematic diagram of the packaging bag film cutting device in an embodiment of this utility model;

[0014] Figure 2 This is a three-dimensional structural diagram of the linear moving component, the cutter, and the rotating structure in an embodiment of this utility model; and

[0015] Figure 3 This is a schematic diagram showing the cooperation relationship between the circular cutter, the slider, and the rotating structure in an embodiment of this utility model. Detailed Implementation

[0016] The following will further explain the concept, specific structure and technical effects of this utility model in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of this utility model.

[0017] <Example>

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the packaging bag film cutting device in an embodiment of this utility model.

[0019] like Figure 1 As shown, in this embodiment, the packaging bag film slitting device 10 is used to slit continuous packaging bag film 20 to form individual packaging bags, and includes a base 11, a linear moving part 12, a circular cutter 13, a rotating structure 14, and a cutter holder 15.

[0020] like Figure 1 As shown, the base 11 is generally rectangular and is arranged along the width of the packaging film 20. In this embodiment, a support plate 111 for supporting the packaging film 20 is provided at the center of one side of the base 11.

[0021] Figure 2 This is a three-dimensional structural diagram of the linear moving component, the cutter, and the rotating structure in an embodiment of this utility model.

[0022] like Figure 1 and Figure 2 As shown, the linear motion component 12 is located on the other side of the base 11 and can reciprocate linearly in the width direction of the packaging film 20. The linear motion component 12 is a ball screw linear module, including a slide table 121, a slider 122, a ball screw assembly 123, and a drive motor 124.

[0023] The slide table 121 is arranged along the width of the packaging bag film 20.

[0024] The slider 122 is slidably mounted on the slide table 121.

[0025] The ball nut in the ball screw assembly 123 is connected to the slider 122.

[0026] The rotating shaft of the drive motor 124 is coaxially connected to the lead screw in the ball screw assembly 123.

[0027] Figure 3 This is a schematic diagram showing the cooperation relationship between the circular cutter, the slider, and the rotating structure in an embodiment of this utility model.

[0028] like Figures 1 to 3 As shown, the circular cutter 13 is disposed on one side of the linear motion member 12 and is capable of reciprocating linear movement in the width direction of the packaging film 20 under the drive of the linear motion member 12. In this embodiment, the circular cutter 13 is rotatably mounted on the slider 122 via a pivot 131 arranged along the length direction of the packaging film 20.

[0029] like Figures 1 to 3As shown, the rotating structure 14 is connected to the circular cutter 13, which is used to make the circular cutter 13 rotate while reciprocating linearly in the width direction of the packaging bag film 20. The rotating structure 14 includes a rotating gear 141, two auxiliary wheels 142, and a synchronous belt 143 that meshes with the rotating gear 141.

[0030] The rotating gear 141 is rotatably mounted on the pivot 131 and fixedly connected to the circular cutter 13, so that the rotating gear 141 and the circular cutter 13 can rotate synchronously.

[0031] Two auxiliary wheels 142 are symmetrically arranged on both sides of the rotating gear 141 and are rotatably mounted on the slider 122.

[0032] The timing belt 143 is arranged along the width of the packaging bag film 20, and is installed in an inverted "V" shape on the rotating gear 141 and two auxiliary wheels 142, with its two ends respectively fixed on the base 11.

[0033] like Figure 1 As shown, the cutter holder 15 is located below the circular cutter 13 and is fixedly mounted on the base 11, forming a strip guide groove 151 for guiding the reciprocating linear movement of the circular cutter 13.

[0034] In this embodiment, the working process of the packaging bag film cutting device 10 is as follows:

[0035] The circular cutter 13 is located on one side of the packaging film 20, for example, the circular cutter 13 is located as follows: Figure 1 As shown on the left. The packaging film 20 passes through the cutter holder 15 and the support plate 111 along the conveying direction (i.e., its length direction) and moves to the preset position, where it is ready to be cut.

[0036] The drive motor 124 operates, and the rotation of the ball screw assembly 123 is converted into linear motion of the slider 122 in the width direction of the packaging film 20. This, in turn, drives the circular cutter 13 to move to the other side of the packaging film 20 in the width direction. At the same time, the rotating gear 141 rotates around the pivot 131 under the constraint of the timing belt 143, which in turn drives the circular cutter 13 to rotate. When the circular cutter 13 passes through the packaging film 20, the packaging film 20 is cut.

[0037] Afterwards, the packaging film 20 is moved along the conveying direction to the next preset position and is once again in the state of waiting to be cut.

[0038] The drive motor 124 starts working again, and the reverse rotation of the ball screw assembly 123 is converted into the reverse linear motion of the slider 122, which in turn drives the circular cutter 13 to move in the reverse linear motion and return to one side of the packaging film 20. At the same time, the rotating gear 141 rotates under the constraint of the timing belt 143, which in turn drives the circular cutter 13 to rotate. When the circular cutter 13 passes through the packaging film 20 again, the packaging film 20 is cut again. This cycle is repeated to achieve the cutting process of the packaging film 20.

[0039] The above embodiments are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model.

Claims

1. A packaging bag film cutting device for cutting packaging bag film to form packaging bags, characterized in that, The package bag film slitting device comprises: a linear moving component capable of reciprocating linearly in a width direction of the package bag film; a circular cutter arranged on the linear moving component and capable of reciprocating linearly in the width direction under the driving of the linear moving component; and a rotating structure connected with the circular cutter and capable of rotating the circular cutter while reciprocating linearly in the width direction.

2. The package bag film slitting device according to claim 1, wherein: the linear moving component is a ball screw linear module comprising a sliding table arranged along the width direction and a sliding block slidingly installed on the sliding table, wherein the circular cutter is rotatably installed on the sliding block through a pivot arranged along a length direction of the package bag film.

3. The package bag film slitting device according to claim 2, wherein: the rotating structure comprises a rotating gear and a synchronous belt engaged with the rotating gear and arranged along the width direction, wherein the rotating gear is rotatably installed on the pivot and fixedly connected with the circular cutter.

4. The package bag film slitting device according to claim 3, wherein: the rotating structure further comprises two auxiliary wheels symmetrically arranged on both sides of the rotating gear and rotatably installed on the sliding block respectively. wherein 5. The package bag film slitting device according to claim 2, wherein: the linear moving component further comprises a ball screw assembly and a driving motor, wherein a rotating shaft of the driving motor is coaxially connected with a screw rod in the ball screw assembly, the sliding block is connected with a ball nut in the ball screw assembly. The device further comprises:

6. The packaging bag film slitting apparatus according to claim 1, wherein a cutter holder for guiding the reciprocating linear movement of the circular cutter. ​

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