Cutting device and packaging bag making machine

Abstract

This utility model provides a cutting device and a packaging bag making machine. The cutting device includes a base plate, a pressing and cutting mechanism, and a driving mechanism. The pressing and cutting mechanism includes: a cutting blade with a cutting edge; a first hot pressing plate disposed in front of the cutting blade and configured to move vertically relative to the cutting blade, the first hot pressing plate containing a heater; and a second hot pressing plate disposed in front of the cutting blade and configured to move vertically relative to the cutting blade, the second hot pressing plate containing a heater. The base plate is disposed below the pressing and cutting mechanism, and the driving mechanism is configured to drive the pressing and cutting mechanism to switch between a zero position and a cutting position vertically. By providing heaters in the first and second hot pressing plates, the first and second hot pressing plates can simultaneously heat the hot melt adhesive while pressing the bag blank, ensuring a firm bond in the finished product and significantly improving the quality of the finished product.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment technology, and in particular to a packaging bag making machine. Background Technology

[0002] In a packaging bag-making machine, packaging materials (such as rolls of paper) need to pass through a series of stages, including a glue applicator, an inner contents feeding device, a bag-making device, and a cutting device. The glue applicator applies hot melt adhesive to preset positions on the packaging material; the inner contents feeding device places the contents (such as books) onto the packaging material; the bag-making device folds the packaging material in half and seals it longitudinally to form a cylindrical bag preform; and the cutting device presses and cuts the bag preform laterally to output the finished product. However, the packaging material traverses several stations from the glue applicator to the cutting device. By the time the packaging material (bag preform) reaches the cutting device, the temperature of the hot melt adhesive has significantly decreased, its viscosity has reduced, and its wetting and penetration capabilities have weakened, leading to insufficient sealing strength, incomplete sealing, or even bursting.

[0003] The content of the background section is merely the technology known to the inventor and does not necessarily represent the prior art in this field. Utility Model Content

[0004] To address one or more deficiencies in the prior art, this utility model provides a cutting device, including a base plate, a pressing and cutting mechanism, and a driving mechanism, wherein the pressing and cutting mechanism includes: A cutting knife, having a blade; A first hot press plate is disposed on the front side of the cutting blade and configured to be movable vertically relative to the cutting blade; a heater is disposed within the first hot press plate; and A second hot press plate is disposed on the rear side of the cutting blade and configured to be movable in a vertical direction relative to the cutting blade. A heater is disposed inside the second hot press plate. The base plate is located below the cutting mechanism, and the driving mechanism is configured to drive the cutting mechanism to switch between the zero position and the cutting position in the vertical direction. When the pressure cutting mechanism is in the zero position, the pressing surfaces of the first hot press plate and the second hot press plate are lower than the cutting edge of the cutting knife.

[0005] According to one aspect of the present invention, the blade is configured as a flat blade or a toothed blade.

[0006] According to one aspect of the present invention, the blade is inclined relative to the horizontal direction; optionally, the blade is inclined in a direction that gradually rises from the first end to the second end; optionally, the angle between the blade and the horizontal direction (i.e., the inclination angle) can be set to 1-10°.

[0007] According to one aspect of the present invention, a cutting groove is provided on the base plate at the position corresponding to the cutting blade.

[0008] According to one aspect of the present invention, the pressing surface of the first hot press plate and / or the pressing surface of the second hot press plate is configured as a serrated surface.

[0009] According to one aspect of the present invention, a temperature sensor is provided inside the first hot press plate, and a temperature sensor is provided inside the second hot press plate.

[0010] According to one aspect of the present invention, the cutting mechanism further includes: Knife holder; The first connecting bracket is slidably connected to the front side of the tool holder; A first spring is connected to the first connecting frame and configured to provide a downward elastic force to the first connecting frame; The second connecting bracket is slidably connected to the rear side of the tool holder; A second spring is connected to the second connecting frame and configured to provide a downward elastic force to the second connecting frame; The cutting blade is detachably connected to the bottom of the blade holder, the first hot press plate is detachably connected to the bottom of the first connecting frame, and the second hot press plate is detachably connected to the bottom of the second connecting frame.

[0011] According to one aspect of the present invention, the driving mechanism includes: The first adapter frame is located below the base plate; The first transmission rod is fixedly connected between the first adapter frame and the tool holder; A linear guide rail includes a slide rail, a first slider, and a second slider, wherein the slide rail is arranged vertically, the first slider is connected to the tool holder, and the second slider is connected to the first adapter frame; and A linear drive module is connected to the first adapter frame and configured to drive the first adapter frame to rise and fall along the linear guide rail.

[0012] According to one aspect of the present invention, the linear guide rail further includes a third slider and a fourth slider; The drive mechanism also includes: The support frame is connected to the base plate and the third slider, respectively. The second adapter is positioned above the first adapter and is connected to the fourth slider; The second transmission rod is fixedly connected between the support frame and the second adapter frame; The linear drive module is also connected to the second adapter frame and configured to drive the second adapter frame to rise and fall along the linear guide rail.

[0013] According to one aspect of the present invention, when the linear drive module drives the first adapter frame to rise along the linear guide rail, it simultaneously drives the second adapter frame to fall along the linear guide rail; when the linear drive module drives the first adapter frame to fall along the linear guide rail, it simultaneously drives the second adapter frame to rise along the linear guide rail.

[0014] According to one aspect of the present invention, the linear drive module includes a tension spring, a first cam, a second cam, and a drive motor, wherein, The tension spring is connected between the first adapter frame and the second adapter frame, and provides a tension force that brings the first adapter frame and the second adapter frame closer to each other; The first cam is connected to the drive motor and can push the first adapter frame upward under the drive of the drive motor; The second cam is connected to the drive motor and can push the second adapter downward under the drive of the drive motor.

[0015] An embodiment of this utility model also provides a packaging bag making machine, including the cutting device described above.

[0016] Compared with the prior art, the embodiments of this utility model provide a cutting device and a packaging bag making machine, wherein by setting heaters in the first hot press plate and the second hot press plate, the first hot press plate and the second hot press plate can simultaneously heat the hot melt adhesive while pressing the bag blank, ensuring that the finished product is firmly bonded and significantly improving the quality of the finished product. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 A schematic diagram of a cutting device according to an embodiment of the present invention is shown; Figure 2a A front view of a cutting mechanism according to an embodiment of the present invention is shown; Figure 2b A rear view of a cutting mechanism according to an embodiment of the present invention is shown; Figure 3 A schematic diagram of a first hot press plate and a second hot press plate according to an embodiment of the present invention is shown; Figure 4A schematic diagram of a cutting blade according to an embodiment of the present invention is shown; Figure 5 A schematic diagram of a base plate according to an embodiment of the present invention is shown; Figure 6 A schematic diagram of a linear drive module according to an embodiment of the present invention is shown.

[0018] In the diagram: 100, Cutting device; 110, Base plate; 111, Blade groove; 120, Pressing and cutting mechanism; 121, Cutting blade; 121a, Blade edge; 122, First hot press plate; 122a, Mounting hole; 123, Second hot press plate; 124, Heater; 125, Blade holder; 125a, First guide block; 125b, Second guide block; 125c, Mounting plate; 125d, Guide pressure block; 126, First connecting frame; 126a, First guide groove; 127, Second connecting frame; 127a, Second guide groove; 128, First spring; 129. Second spring; 130, drive mechanism; 131, first adapter frame; 132, first transmission rod; 133, linear drive module; 133a, tension spring; 133b, first cam; 133c, second cam; 133d, drive motor; 134, linear guide rail; 134a, slide rail; 134b, first slider; 134c, second slider; 134d, third slider; 134e, fourth slider; 135, support frame; 136, second adapter frame; 137, second transmission rod; 140, temperature sensor; a1, first end; a2, second end. Detailed Implementation

[0019] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for mutual communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0023] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0024] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0025] Figure 1 A schematic diagram of a cutting device 100 according to an embodiment of the present invention is shown below, in conjunction with... Figure 1 Provide a detailed description.

[0026] like Figure 1 As shown, the cutting device 100 mainly includes a base plate 110, a pressing and cutting mechanism 120, and a driving mechanism 130. The pressing and cutting mechanism 120 is located above the base plate 110. The driving mechanism 130 can drive the pressing and cutting mechanism 120 to rise and fall in the vertical direction, so that the pressing and cutting mechanism 120 switches between the zero position and the cutting position to complete the pressing and cutting of the bag blank.

[0027] Figure 2a A front view of a cutting mechanism 120 according to an embodiment of the present invention is shown. Figure 2b A rear view of a cutting mechanism 120 according to an embodiment of the present invention is shown. Figure 2a and Figure 2b As shown, the pressure-cutting mechanism 120 mainly includes a cutting blade 121, a first hot pressing plate 122, and a second hot pressing plate 123. The first hot pressing plate 122 is located on the front side of the cutting blade 121, and the second hot pressing plate 123 is located on the rear side of the cutting blade 121. Both the first hot pressing plate 122 and the second hot pressing plate 123 can move vertically relative to the cutting blade 121. In this embodiment, the zero-point position is higher than the cutting position. When the pressure-cutting mechanism 120 is at the zero-point position, the pressing surface of the first hot pressing plate 122 (… Figure 1 The lower surface of the middle) and the pressing surface of the second hot press plate 123 ( Figure 1The lower surface of the cutting blade 121 is lower than the blade 121a of the cutting blade 121. By adopting the above design, when the pressure cutting mechanism 120 switches from the zero position to the cutting position, the first hot pressure plate 122 and the second hot pressure plate 123 can contact the preform before the cutting blade 121 and effectively press the preform, thereby preventing the preform from slipping or deforming under the action of the cutting blade 121 and ensuring a smooth cut.

[0028] Figure 3 A schematic diagram of a first hot-press plate 122 and a second hot-press plate 123 according to an embodiment of the present invention is shown. Figure 3 As shown, heaters 124 are also provided in the first hot press plate 122 and the second hot press plate 123. The heaters 124 can heat the first hot press plate 122 and the second hot press plate 123 to a preset temperature (e.g., 90-110°C), so that the first hot press plate 122 and the second hot press plate 123 can simultaneously heat the hot melt adhesive while pressing the bag preform, ensuring that the finished product is firmly bonded and significantly improving the quality of the finished product.

[0029] According to one embodiment of the present invention, such as Figure 3 As shown, the heater 124 can be an electric heating rod. Multiple electric heating rods can be installed on the first hot press plate 122 and the second hot press plate 123 respectively, to make the temperature on the first hot press plate 122 and the second hot press plate 123 more uniform, improve the heating effect of the first hot press plate 122 and the second hot press plate 123 on the hot melt adhesive, and ensure effective activation of the hot melt adhesive. In some embodiments, the first hot press plate 122 and the second hot press plate 123 are respectively provided with multiple mounting holes 122a, and the electric heating rods are inserted into the corresponding mounting holes 122a, and the electric heating rods and mounting holes 122a adopt a tight transition fit to facilitate the installation and maintenance of the electric heating rods. In some embodiments, the heater 124 can also be a heating tape or a pipe carrying a heat-conducting medium (oil, water, steam), etc.

[0030] According to one embodiment of the present invention, such as Figure 3 As shown, temperature sensors 140 are respectively provided in the first hot press plate 122 and the second hot press plate 123. The temperature sensors 140 can detect the temperature of the first hot press plate 122 / second hot press plate 123 in real time. In some embodiments, the cutting device 100 may further include a temperature controller. The temperature controller can dynamically adjust the heating power of the heater 124 according to the detection results of the temperature sensors 140, so that the temperature of the first hot press plate 122 / second hot press plate 123 is always within a preset range, ensuring that the first hot press plate 122 / second hot press plate 123 can effectively activate the hot melt adhesive.

[0031] Figure 4 A schematic diagram of a cutting blade 121 according to an embodiment of the present invention is shown. Figure 4As shown, the cutting edge 121a of the cutting blade 121 can be configured as a serrated edge (a toothed blade). The serrated edge has a smaller contact area with the preform during cutting, reducing cutting resistance and improving cutting efficiency; simultaneously, the serrated edge can instantly "bite" into the material, effectively preventing slippage or deviation and ensuring precise cuts. In some embodiments, the cutting edge 121a of the cutting blade 121 can also be configured as a flat edge (a flat, smooth blade 121a). A flat edge can form a straight, fine cross-section during cutting, resulting in clean, neat edges and a more refined appearance.

[0032] According to one embodiment of the present invention, such as Figure 2a and Figure 4 As shown, the cutting blade 121a of the cutting blade 121 is inclined relative to the horizontal direction. Specifically, the inclination direction of the cutting blade 121a is gradually upward from the first end a1 to the second end a2. This means that during the process of the pressure cutting mechanism 120 moving down from the zero position to the cutting position, the cutting blade 121a gradually cuts into the preform from one side to the other, which can effectively reduce instantaneous cutting resistance, avoid preform stretching and deformation, and ensure a straight cut and clean edges. Optionally, the angle α (i.e., the inclination angle) between the cutting blade 121a and the horizontal direction can be set to 1-10°. For example, in Figure 4 In the embodiment shown, the included angle α is set to 3°. Figure 5 A schematic diagram of a base plate 110 according to an embodiment of the present invention is shown. Figure 5 As shown, the upper surface of the base plate 110 is provided with a cutting groove 111, which is aligned with the cutting blade 121. During cutting, the cutting blade 121 can precisely enter the cutting groove 111, thereby ensuring that the cutting blade 121 can completely cut the bag blank, ensuring the accuracy and consistency of the cutting effect.

[0033] According to one embodiment of the present invention, such as Figure 3 As shown, the pressing surfaces of the first hot press plate 122 and the second hot press plate 123 are both configured with serrated surfaces. When the first hot press plate 122 and the second hot press plate 123 hot press the bag preform, air can smoothly escape along the grooves of the serrated surfaces, thereby preventing air bubbles from appearing in the sealed part of the finished product and effectively improving the appearance qualification rate of the finished product.

[0034] According to one embodiment of the present invention, such as Figure 2a and Figure 2bAs shown, the cutting mechanism 120 may further include a blade holder 125, a first connecting frame 126, and a second connecting frame 127. The cutting blade 121 is detachably connected to the bottom of the blade holder 125. The first hot press plate 122 is detachably connected to the bottom of the first connecting frame 126, and the first connecting frame 126 is slidably connected to the front side of the blade holder 125, allowing the first hot press plate 122 to move vertically relative to the cutting blade 121. The second hot press plate 123 is detachably connected to the corresponding blade holder 125, and the second connecting frame 127 is slidably connected to the rear side of the blade holder 125, allowing the second connecting frame 127 to also move vertically relative to the blade holder 125. In some embodiments, the first connecting frame 126 and the second connecting frame 127 are respectively defined on the blade holder 125 by a plurality of guide blocks 125d, and achieve precise and stable sliding under the guidance of the guide blocks 125d. By adopting the above structural design, on the one hand, it facilitates the user's maintenance and replacement of the cutting blade 121, the first hot pressure plate 122, and the second hot pressure plate 123, thereby significantly improving the ease of use and versatility of the cutting device 100; on the other hand, it also facilitates the synchronous driving of the cutting blade 121, the first hot pressure plate 122, and the second hot pressure plate 123 by the drive mechanism 130. For example, in some embodiments, the output end of the drive mechanism 130 is directly connected to the blade holder 125, and by driving the blade holder 125 to rise and fall in the vertical direction, the synchronous driving of the cutting blade 121, the first hot pressure plate 122, and the second hot pressure plate 123 is achieved.

[0035] According to one embodiment of the present invention, such as Figure 2a As shown, two first guide blocks 125a are connected to the front side of the blade holder 125, and these two first guide blocks 125a are spaced apart in the horizontal direction. Correspondingly, two first guide grooves 126a extending in the vertical direction are provided on the first connecting frame 126, and the first guide grooves 126a slide in engagement with the first guide blocks 125a. Through the mutual cooperation of the first guide blocks 125a and the first guide grooves 126a, the first connecting frame 126 can be effectively limited, ensuring that the first connecting frame 126 can slide smoothly and steadily in the vertical direction relative to the blade holder 125, thereby improving the operating accuracy and stability of the cutting mechanism 120.

[0036] In some embodiments, the front side of the tool holder 125 may be provided with one, three, four, or more first guide blocks 125a as needed, and the first connecting frame 126 will also be provided with a corresponding number of first guide grooves 126a. Furthermore, in some embodiments, the number of first guide grooves 126a may be greater than the number of first guide blocks 125a. This design not only meets the guiding requirements but also effectively reduces the weight and inertia of the first connecting frame 126, thereby reducing the impact force generated by the first pressing plate when pressing the preform.

[0037] According to one embodiment of the present invention, such as Figure 2b As shown, two second guide blocks 125b are connected to the rear side of the blade holder 125, and these two second guide blocks 125b are spaced apart in the horizontal direction. Correspondingly, two second guide grooves 127a are provided on the second connecting frame 127, extending vertically, and the second guide grooves 127a slide in engagement with the second guide blocks 125b. Through the mutual cooperation between the second guide blocks 125b and the second guide grooves 127a, the second connecting frame 127 can be effectively limited, ensuring that the second connecting frame 127 can slide smoothly and steadily in the vertical direction relative to the blade holder 125, thereby improving the operating accuracy and stability of the cutting mechanism 120.

[0038] In some embodiments, one, three, four, or more second guide blocks 125b may be provided on the rear side of the tool holder 125 as needed, and a corresponding number of second guide grooves 127a will also be provided on the second connecting frame 127. Furthermore, in some embodiments, the number of second guide grooves 127a may be greater than the number of second guide blocks 125b. This design not only meets the guiding requirements but also effectively reduces the weight and inertia of the second connecting frame 127, thereby reducing the impact force generated by the second pressing plate when pressing the preform.

[0039] According to one embodiment of the present invention, such as Figure 2a As shown, the cutting mechanism 120 may further include a first spring 128. The first spring 128 is connected to the first connecting frame 126 and can provide a downward elastic force to the first connecting frame 126. This allows the first pressing plate to continuously and stably apply pressure to the preform, thereby ensuring a firm bond in the finished product and significantly improving the quality of the finished product. In some embodiments, a mounting plate 125c is fixedly connected to the top of the blade holder 125, one end of the first spring 128 is fixedly connected to the mounting plate 125c, and the other end is fixedly connected to the first connecting frame 126. In some preferred embodiments, multiple first springs 128 are provided, which are spaced apart between the mounting plate 125c and the first connecting frame 126, further optimizing the pressure distribution and enhancing the stability and reliability of the cutting mechanism 120.

[0040] According to one embodiment of the present invention, such as Figure 2bAs shown, the cutting mechanism 120 may further include a second spring 129. The second spring 129 is connected to the second connecting frame 127 and can provide a downward elastic force to the second connecting frame 127. This allows the second pressing plate to continuously and stably apply pressure to the preform, thereby ensuring a strong bond in the finished product and significantly improving the quality of the finished product. In some embodiments, one end of the second spring 129 is fixedly connected to the mounting plate 125c, and the other end is fixedly connected to the second connecting frame 127. In some preferred embodiments, multiple second springs 129 are provided, which are spaced apart between the mounting plate 125c and the second connecting frame 127, further optimizing the pressure distribution and enhancing the stability and reliability of the cutting mechanism 120.

[0041] According to one embodiment of the present invention, such as Figure 1 As shown, the drive mechanism 130 may include a first adapter frame 131, a first transmission rod 132, a linear drive module 133, and two linear guide rails 134. One linear guide rail 134 is located on the left side of the base plate 110, and the other linear guide rail 134 is located on the right side of the base plate 110. Each of the two linear guide rails 134 includes a slide rail 134a, a first slider 134b, and a second slider 134c. The slide rail 134a is arranged vertically, and the first slider 134b and the second slider 134c are slidably mounted on the slide rail 134a. The aforementioned tool holder 125 is fixedly connected to the first slider 134b of the two linear guide rails 134. The first adapter frame 131 is located below the base plate 110 and is fixedly connected to the second slider 134c of the two linear guide rails 134. The linear drive module 133 is connected to the first adapter frame 131, and the first adapter frame 131 is connected to the tool holder 125 via the first transmission rod 132. By adopting this structural design, the linear drive module 133 can directly drive the first adapter 131 to slide vertically along the linear guide rail 134, thereby driving the blade holder 125 to slide smoothly along the linear guide rail 134. This allows the die-cutting mechanism 120 to switch quickly and accurately between the zero position and the die-cutting position, thereby ensuring the high efficiency and reliability of the equipment operation and further improving production efficiency and product quality.

[0042] In some embodiments, the linear guide rail 134 may further include a third slider 134d and a fourth slider 134e. The drive mechanism 130 may further include a support frame 135, a second adapter frame 136, and a second transmission rod 137. The support frame 135 is fixedly connected to the lower side of the base plate 110 and is also fixedly connected to the third slider 134d of the two linear guide rails 134. The second adapter frame 136 is disposed above the first adapter frame 131 and is also fixedly connected to the fourth slider 134e of the two linear guide rails 134. The linear drive module 133 is connected to the second adapter frame 136, and the support frame 135 and the second adapter frame 136 are also connected via the second transmission rod 137. In some embodiments, when the linear drive module 133 drives the first adapter 131 to rise along the linear guide rail 134, it simultaneously drives the second adapter 136 to fall along the linear guide rail 134; conversely, when the linear drive module 133 drives the first adapter 131 to fall along the linear guide rail 134, it simultaneously drives the second adapter 136 to rise along the linear guide rail 134. By adopting this structural design, the linear drive module 133 can directly drive the second adapter 136 to slide vertically along the linear guide rail 134, thereby causing the base plate 110 to rise and fall along the linear guide rail 134. Thus, when using a conveyor device (e.g., a conveyor belt) to transfer the preform onto the base plate 110, the phenomenon of preform jamming can be effectively avoided.

[0043] Figure 6 A schematic diagram of a linear drive module 133 according to an embodiment of the present invention is shown. Figure 6 As shown, the linear drive module 133 can also be a cam module, which includes a tension spring 133a, a first cam 133b, a second cam 133c, and a drive motor 133d. The drive motor 133d is connected to the first cam 133b and the second cam 133c respectively, and can drive the first cam 133b and the second cam 133c to rotate synchronously. In some embodiments, the first cam 133b abuts against the top of the first adapter frame 131, or abuts against a roller mounted on the top of the first adapter frame 131; driven by the drive motor 133d, the first cam 133b can push the first adapter frame 131 downward. In some embodiments, the second cam 133c abuts against the bottom of the second adapter frame 136, or abuts against a roller mounted on the bottom of the second adapter frame 136; driven by the drive motor 133d, the second cam 133c can push the second adapter frame 136 upward. The tension spring 133a is connected between the first adapter frame 131 and the second adapter frame 136, and provides a tension force to bring the first adapter frame 131 and the second adapter frame 136 closer to each other, thereby realizing the function of driving the first adapter frame 131 to rise along the linear guide rail 134 and driving the second connecting frame 127 to fall along the linear guide rail 134.

[0044] In some embodiments, the linear drive module 133 can employ various types of linear actuators, such as cylinders, hydraulic cylinders, or electric actuators. For example, two cylinders can be used to drive the first adapter 131 and the second adapter 136 respectively, thereby achieving precise and efficient linear motion control.

[0045] An embodiment of this utility model also provides a packaging bag making machine, which includes the aforementioned cutting device 100.

[0046] Compared with the prior art, the embodiments of this utility model provide a cutting device 100 and a packaging bag making machine, wherein, by setting heaters 124 in the first hot press plate 122 and the second hot press plate 123, the first hot press plate 122 and the second hot press plate 123 can simultaneously heat the hot melt adhesive while pressing the bag blank, ensuring that the finished product is firmly bonded and significantly improving the quality of the finished product.

[0047] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A cutting device, characterized in that, It includes a base plate, a cutting mechanism, and a drive mechanism, wherein the cutting mechanism includes: A cutting knife, having a blade; A first hot press plate is disposed on the front side of the cutting blade and configured to be movable vertically relative to the cutting blade; a heater is disposed within the first hot press plate; and A second hot press plate is disposed on the rear side of the cutting blade and configured to be movable in a vertical direction relative to the cutting blade. A heater is disposed inside the second hot press plate. The base plate is located below the cutting mechanism, and the driving mechanism is configured to drive the cutting mechanism to switch between the zero position and the cutting position in the vertical direction. When the pressure cutting mechanism is in the zero position, the pressing surfaces of the first hot press plate and the second hot press plate are lower than the cutting edge of the cutting knife.

2. The cutting device according to claim 1, characterized in that, The blade is configured as a flat edge or a toothed edge.

3. The cutting device according to claim 1, characterized in that, The blade is set at an angle relative to the horizontal direction.

4. The cutting device according to any one of claims 1-3, characterized in that, The base plate is provided with a cutting groove corresponding to the position of the cutting blade.

5. The cutting device according to claim 1, characterized in that, The pressing surface of the first hot press plate and / or the pressing surface of the second hot press plate are configured as serrated surfaces.

6. The cutting device according to claim 1, characterized in that, A temperature sensor is installed inside the first hot press plate, and a temperature sensor is installed inside the second hot press plate.

7. The cutting device according to claim 1, characterized in that, The cutting mechanism further includes: Knife holder; The first connecting bracket is slidably connected to the front side of the tool holder; A first spring is connected to the first connecting frame and configured to provide a downward elastic force to the first connecting frame; The second connecting bracket is slidably connected to the rear side of the tool holder; A second spring is connected to the second connecting frame and configured to provide a downward elastic force to the second connecting frame; The cutting blade is detachably connected to the bottom of the blade holder, the first hot press plate is detachably connected to the bottom of the first connecting frame, and the second hot press plate is detachably connected to the bottom of the second connecting frame.

8. The cutting device according to claim 7, characterized in that, The drive mechanism includes: The first adapter frame is located below the base plate; The first transmission rod is fixedly connected between the first adapter frame and the tool holder; A linear guide rail includes a slide rail, a first slider, and a second slider, wherein the slide rail is arranged vertically, the first slider is connected to the tool holder, and the second slider is connected to the first adapter frame; and A linear drive module is connected to the first adapter frame and configured to drive the first adapter frame to rise and fall along the linear guide rail.

9. The cutting device according to claim 8, characterized in that, The linear guide rail also includes a third slider and a fourth slider; The drive mechanism also includes: The support frame is connected to the base plate and the third slider, respectively. The second adapter is positioned above the first adapter and is connected to the fourth slider; The second transmission rod is fixedly connected between the support frame and the second adapter frame; The linear drive module is also connected to the second adapter frame and configured to drive the second adapter frame to rise and fall along the linear guide rail.

10. The cutting device according to claim 9, characterized in that, When the linear drive module drives the first adapter frame to rise along the linear guide rail, it simultaneously drives the second adapter frame to fall along the linear guide rail; when the linear drive module drives the first adapter frame to fall along the linear guide rail, it simultaneously drives the second adapter frame to rise along the linear guide rail.

11. The cutting device according to claim 10, characterized in that, The linear drive module includes a tension spring, a first cam, a second cam, and a drive motor, wherein... The tension spring is connected between the first adapter frame and the second adapter frame, and provides a tension force that brings the first adapter frame and the second adapter frame closer to each other; The first cam is connected to the drive motor and can push the first adapter frame upward under the drive of the drive motor; The second cam is connected to the drive motor and can push the second adapter downward under the drive of the drive motor.

12. A packaging bag making machine, characterized in that, Includes the cutting device according to any one of claims 1-11.

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