Material cutting device

Abstract

The utility model discloses a material cutting device which comprises a fixed frame, a fixed cutter and a movable cutter, a driver is arranged on the fixed frame, the fixed cutter is connected to the fixed frame, the driver is in driving connection with a movable base and can drive the movable base to move close to or away from the fixed cutter, the movable cutter is connected to the movable base, and the fixed cutter is provided with a first matching face. The movable cutter is correspondingly provided with a second matching surface, a floating structure is arranged between the fixed cutter and the fixed frame and / or between the movable cutter and the movable seat, and when the fixed cutter is matched with the movable cutter, the floating structure can enable the first matching surface and the second matching surface to have a trend of moving and fitting. The floating structure is arranged, so that the matching surfaces of the fixed cutter and the movable cutter have a trend of moving and attaching, a gap generated due to assembly errors or abrasion and the like can be compensated, a good cutting effect can be achieved, and production and application are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of production equipment, in particular to a material cutting device. Background Art

[0002] In existing packaging production, such as the packaging production of oral tobacco powder materials, it is necessary to cut the long strip packaging materials. The existing cutting mechanism usually includes a fixed knife and a movable knife, which move relative to each other to make the blades match or separate to complete the cutting of the long strip packaging materials. Due to assembly errors or wear after long-term use, there may be a large gap between the matching surfaces of the fixed knife and the movable knife, so that when the two knives are cutting, the blades of the fixed knife and the movable knife are misaligned by a large distance, affecting the cutting effect, and may even fail to effectively cut the material, affecting the production of the material. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a material cutting device, which provides a floating structure so that the mating surfaces of the fixed knife and the movable knife have a tendency to move and fit, and can compensate for the gap caused by assembly error or wear, which is conducive to achieving a better cutting effect and is convenient for production application.

[0004] According to the material cutting device described in the embodiment of the utility model, it includes a fixed frame, a fixed knife and a movable knife, the fixed frame is provided with a driver, the fixed knife is connected to the fixed frame, the driver is driven and connected to a movable seat, and can drive the movable seat to move closer to or away from the fixed knife, the movable knife is connected to the movable seat, the fixed knife is provided with a first mating surface, and the movable knife is correspondingly provided with a second mating surface, a floating structure is provided between the fixed knife and the fixed frame and / or between the movable knife and the movable seat, and when the fixed knife and the movable knife are matched, the floating structure can make the first mating surface and the second mating surface have a tendency to move and fit.

[0005] According to the material cutting device described in the embodiment of the utility model, it has at least the following beneficial effects: when in use, the material is transported between the fixed knife and the movable knife, the driver drives the movable seat to move, driving the movable knife to move closer or farther relative to the fixed knife, and the material is cut by the blade of the fixed knife and the blade of the movable knife. By setting a floating structure, the movable knife and / or the fixed knife are in a floating state. Under the action of the floating structure, the first mating surface of the fixed knife and the second mating surface of the movable knife have a tendency to move and fit, which can compensate for the gap caused by assembly error or wear and other reasons. When the fixed knife and the movable knife are matched, the gap between the mating surfaces of the two knives is very small, so that the blades of the two knives can act better at the same cutting position during cutting, achieving a better cutting and cutting effect, ensuring the effective cutting of materials, and facilitating production applications.

[0006] According to some embodiments of the present utility model, the floating structure is arranged between the fixed knife and the fixed frame, and the movable knife is fixedly connected to the movable seat.

[0007] According to some embodiments of the present invention, the floating structure includes an elastic member, and the elastic member acts between the fixed knife and the fixed frame to make the first matching surface have a tendency to move toward and fit the second matching surface.

[0008] According to some embodiments of the present utility model, the fixed knife or the movable knife is provided with an extension portion, the extension portion extends along the driving direction of the driver, and the extension portion abuts against the second mating surface or the first mating surface correspondingly.

[0009] According to some embodiments of the present invention, the blade of the fixed knife is inclined relative to the blade of the movable knife, so that a preset angle is formed between the blade of the fixed knife and the blade of the movable knife.

[0010] According to some embodiments of the present invention, the material cutting device further includes a material guide, which is disposed on the material input side of the fixed knife, and the material guide is provided with a through material channel, and the material channel is used to guide the material to the blade of the fixed knife.

[0011] According to some embodiments of the present utility model, an adjustment component is provided between the material guide and the fixed frame and connected through the adjustment component, and the adjustment component is used to adjust the position of the material guide relative to the fixed frame.

[0012] According to some embodiments of the present utility model, the adjustment component is provided with an adjustment slot in the form of an elongated strip, and the material guide is connected to the adjustment slot and can move along the adjustment slot to an adjustment position.

[0013] According to some embodiments of the present invention, the material cutting device further comprises an installation component for installation, the fixing frame is connected to the installation component, and the installation component can adjust the installation position of the fixing frame.

[0014] According to some embodiments of the utility model, the mounting assembly includes a mounting frame, a fixed beam, an adjusting beam and an adjusting rod, the mounting frame is used for installation, the fixed beam is fixedly connected to the mounting frame, the fixed frame is fixedly connected to the adjusting beam, and the two ends of the adjusting rod are respectively connected to the fixed beam and the adjusting beam, and can drive the adjusting beam to move relative to the fixed beam.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 This is a schematic diagram of the structure of a material cutting device according to an embodiment of the utility model;

[0018] Figure 2 for Figure 1 A structural schematic diagram of the material cutting device from another perspective;

[0019] Figure 3 for Figure 1 Partial structural diagram of the material cutting device;

[0020] Figure 4 for Figure 3 Schematic diagram of partial structural cross-section of the material cutting device.

[0021] Reference numerals:

[0022] The fixing frame 100, the limiting hole 101, the driver 110, the movable seat 120, the first guide rod 130, the elastic member 140, and the adjustment plate 150;

[0023] Fixed blade 200, first mating surface 201, extension portion 210;

[0024] Movable knife 300, second matching surface 301;

[0025] Material guide 410, material channel 411, adjustment assembly 420, adjustment slot 421;

[0026] The mounting assembly 500 , the mounting frame 510 , the second guide rod 511 , the fixing beam 520 , the adjusting beam 530 , and the adjusting rod 540 . DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] In the description of the present invention, it should be understood that if it involves orientation descriptions, the orientations or positional relationships indicated, such as up, down, front, back, left, right, etc., are based on the orientations or positional relationships shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0029] If the first and second are described, they are only used to distinguish the technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the sequence of the indicated technical features.

[0030] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0031] Reference Figures 1 to 4 A material cutting device includes a fixed frame 100, a fixed knife 200 and a movable knife 300. The fixed frame 100 is provided with a driver 110. The fixed knife 200 is connected to the fixed frame 100. The driver 110 is driven and connected to a movable seat 120, and can drive the movable seat 120 to move closer to or away from the fixed knife 200. The movable knife 300 is connected to the movable seat 120. The fixed knife 200 is provided with a first mating surface 201, and the movable knife 300 is correspondingly provided with a second mating surface 301. A floating structure is provided between the fixed knife 200 and the fixed frame 100 and / or between the movable knife 300 and the movable seat 120. When the fixed knife 200 and the movable knife 300 are matched, the floating structure can make the first mating surface 201 and the second mating surface 301 have a tendency to move and fit.

[0032] It is understandable that if Figure 1 , Figure 3 and Figure 4As shown, the driver 110 is arranged on the front side of the fixed frame 100, the fixed knife 200 is arranged on the rear side of the fixed frame 100, and the first guide rod 130 is arranged on the left and right sides of the fixed frame 100. The movable seat 120 is connected to the driving end of the driver 110 and is located in front of the fixed knife 200. The first guide rod 130 passes through the movable seat 120 to guide and limit the forward and backward movement of the movable seat 120. The movable knife 300 is arranged on the rear side of the movable seat 120 so that it can move with the movable seat 120 and cooperate with or separate from the fixed knife 200. The first mating surface 201 of the fixed knife 200 faces downward and the blade is located on the front side, and the second mating surface 301 of the movable knife 300 faces upward and the blade is located on the rear side.

[0033] When in use, the material is transported between the fixed knife 200 and the movable knife 300, and the driver 110 drives the movable seat 120 to move horizontally forward and backward, driving the movable knife 300 to move closer to or farther from the fixed knife 200, and the material is cut by the blade of the fixed knife 200 and the blade of the movable knife 300. By setting a floating structure, the movable knife 300 and / or the fixed knife 200 are in an up and down floating state. Under the action of the floating structure, the first mating surface 201 of the fixed knife 200 and the second mating surface 301 of the movable knife 300 have a tendency to move and fit, which can compensate for the gap caused by assembly error or wear and other reasons. When the fixed knife 200 and the movable knife 300 are matched, the gap between the mating surfaces of the two knives is very small, so that the blades of the two knives can act better at the same cutting position during cutting, achieving a better cutting and cutting effect, ensuring the effective cutting of the material, and facilitating production and application.

[0034] In actual application, the driver 110 can be a cylinder, a hydraulic cylinder, an electric push rod, etc. The specific structure of the fixed frame 100, the setting positions of the fixed knife 200 and the movable knife 300 can be set accordingly according to actual use needs. The floating structure will not be described in detail here, and will be explained in detail below.

[0035] In some embodiments, the floating structure is disposed between the fixed knife 200 and the fixed frame 100 , and the movable knife 300 is fixedly connected to the movable seat 120 .

[0036] It is understandable that if Figure 3 and Figure 4As shown, since the movable knife 300 needs to move forward and backward with the movable seat 120, the movable knife 300 and the movable seat 120 are both moving components. Therefore, the floating structure is arranged between the fixed knife 200 and the fixed frame 100, and the movable knife 300 is fixedly connected to the movable seat 120, which can prevent the movable knife 300 from shaking up and down due to the floating structure when moving, so that the movable knife 300 and the fixed knife 200 can cooperate well to achieve cutting of the material. Of course, in actual application, the floating structure can also be arranged between the movable knife 300 and the movable seat 120, or the floating structure can be arranged between the movable knife 300 and the movable seat 120 and between the fixed knife 200 and the fixed frame 100.

[0037] Specifically, the floating structure includes an elastic member 140 , and the elastic member 140 acts between the fixed blade 200 and the fixed frame 100 , so that the first matching surface 201 has a tendency to move toward the second matching surface 301 for fitting.

[0038] It is understandable that if Figure 1 , Figure 3 and Figure 4 As shown, the elastic member 140 is a spring, and the fixed frame 100 is provided with an adjustment plate 150. The two ends of the elastic member 140 act on the fixed knife 200 and the adjustment plate 150 respectively, so that the fixed knife 200 has a tendency to move downward. Under this tendency, the first mating surface 201 can move toward the second mating surface 301 to fit, thereby compensating for the gap between the two knives caused by assembly errors or wear, so that the gap between the two knives when fitting is very small, achieving a better trimming and cutting effect, and ensuring effective cutting of the material.

[0039] In actual application, the elastic member 140 can be set as a tension spring or a compression spring according to the location of the elastic member 140. In addition to the spring, the elastic member 140 can also be an elastic material. The floating structure can also include an air bag, which is used to make the fixed knife 200 float up and down, and by controlling the air pressure change of the air bag, the fixed knife 200 is affected so that the first mating surface 201 has a tendency to move toward the second mating surface 301; or, the floating structure controls the floating up and down of the fixed knife 200 through a cylinder, which can be changed accordingly according to the actual use needs.

[0040] In some embodiments, the fixed knife 200 or the movable knife 300 is provided with an extension portion 210 , and the extension portion 210 extends along the driving direction of the driver 110 , and the extension portion 210 abuts against the second mating surface 301 or the first mating surface 201 correspondingly.

[0041] It is understandable that if Figure 1 , Figure 3 and Figure 4As shown, the extension portion 210 is arranged on the front side of the fixed knife 200 and extends toward the movable knife 300 along the driving direction of the driver 110. The extension portion 210 corresponds to abutting against the second mating surface 301 to prevent the fixed knife 200 from excessively moving downward under the action of the floating structure, thereby ensuring that the movable knife 300 and the fixed knife 200 can effectively cooperate with each other and improving the reliability of use.

[0042] In order to better limit the vertical floating range of the fixed knife 200, the fixed frame 100 is correspondingly provided with a limiting hole 101. The limiting hole 101 is a waist-shaped hole and extends in the vertical direction. The fixed knife 200 is connected to the limiting hole 101 to limit its vertical floating range through the limiting hole 101.

[0043] In actual application, the extension part 210 can also be arranged on the movable knife 300, and it extends toward the fixed knife 200 along the driving direction of the driver 110 and abuts against the first mating surface 201. The specific structure and setting of the extension part 210 and the limiting hole 101 can be set accordingly according to actual use needs.

[0044] In some embodiments, the blade of the fixed blade 200 is inclined relative to the blade of the movable blade 300 , so that a preset angle is formed between the blade of the fixed blade 200 and the blade of the movable blade 300 .

[0045] It is understandable that if Figure 3 As shown, the blade of the movable knife 300 is parallel to the direction of action, and the blade of the fixed knife 200 is inclined relative to the blade of the movable knife 300, so that the blade of the fixed knife 200 and the blade of the movable knife 300 form a preset angle. When cutting the material, the blades of the two knives are not fully coordinated synchronously, but gradually coordinated. For the cutting of multiple materials, it is possible to achieve sequential cutting along the left and right directions instead of synchronous cutting, which can reduce the requirements for cutting force and is also conducive to achieving better cutting and cutting effects. In actual application, the blade of the fixed knife 200 can also be parallel to the direction of action, while the blade of the movable knife 300 is inclined relative to the blade of the fixed knife 200. The specific inclination angle between them can be set accordingly according to actual use needs.

[0046] In some embodiments, the material cutting device further includes a material guide 410 , which is disposed on the material input side of the fixed knife 200 . The material guide 410 is provided with a through material channel 411 , which is used to guide the material to the blade of the fixed knife 200 .

[0047] It is understandable that if Figure 1 and Figure 2As shown, the upper side of the fixed knife 200 is the input side of the material. Accordingly, the material guide 410 is arranged above the fixed knife 200. The material guide 410 is provided with a plurality of material channels 411. The plurality of material channels 411 are arranged in a left-right direction and are all through the upper and lower parts. The material can be limited and guided by the material channels 411, so that the material can be better guided to the blade of the fixed knife 200, which is convenient for cutting the material. In actual application, the specific structure of the material guide 410 can be set according to the actual use needs, and is not limited here.

[0048] Furthermore, an adjustment component 420 is provided between the material guide 410 and the fixing frame 100 and the material guide 410 and the fixing frame 100 are connected via the adjustment component 420 . The adjustment component 420 is used to adjust the position of the material guide 410 relative to the fixing frame 100 .

[0049] It is understandable that if Figure 1 and Figure 2 As shown, by providing the adjustment component 420 and utilizing the adjustment component 420 to adjust the position of the material guide 410 relative to the fixed frame 100 , the adaptability to different material cutting operation conditions can be improved, which is convenient for production application.

[0050] Specifically, the adjustment component 420 is provided with an elongated adjustment slot 421 , and the material guide 410 is connected to the adjustment slot 421 and can move along the adjustment slot 421 to an adjustment position.

[0051] It is understandable that if Figure 1 and Figure 2 As shown, the adjustment component 420 is connected to the first guide rod 130, and the adjustment component 420 itself can adjust its position forward and backward along the first guide rod 130. The adjustment slot 421 extends in the left and right direction. The material guide 410 is connected to the adjustment slot 421 so that it can adjust its position left and right relative to the adjustment component 420. In combination with the forward and backward movement adjustment position of the adjustment component 420, the material guide 410 can realize two axial position movement adjustment, which is easy to use.

[0052] In actual application, the adjustment component 420 can also be provided with multiple installation holes, and the installation position of the material guide 410 can be adjusted by installing the material guide 410 in the installation holes at different positions; or, through the cooperation of the guide rail and guide block, the material guide 410 can be moved relative to the fixed frame 100 to achieve installation position adjustment, which can be changed accordingly according to actual use needs.

[0053] In some embodiments, the material cutting device further includes an installation component 500 for installation, the fixing frame 100 is connected to the installation component 500 , and the installation component 500 can adjust the installation position of the fixing frame 100 .

[0054] It is understandable that if Figure 1 and Figure 2 As shown, when in use, the fixing frame 100 is installed and connected to the external environment or other production equipment through the installation component 500. The installation position of the fixing frame 100 is adjusted by the installation component 500, which is convenient for debugging the material cutting operation and is also conducive to improving the adaptability to different material cutting operation conditions.

[0055] Specifically, the mounting assembly 500 includes a mounting frame 510, a fixed beam 520, an adjusting beam 530 and an adjusting rod 540. The mounting frame 510 is used for installation, the fixed beam 520 is fixedly connected to the mounting frame 510, the fixed frame 100 is fixedly connected to the adjusting beam 530, and both ends of the adjusting rod 540 are respectively connected to the fixed beam 520 and the adjusting beam 530, which can drive the adjusting beam 530 to move relative to the fixed beam 520.

[0056] It is understandable that if Figure 1 and Figure 2 As shown, two mounting frames 510 are provided, each mounting frame 510 has a second guide rod 511 extending in the up-down direction, the left and right sides of the fixed beam 520 are fixedly connected to the second guide rods 511 of the left and right mounting frames 510, the left and right sides of the adjusting beam 530 are slidably sleeved with the second guide rods 511 of the left and right mounting frames 510, the up-and-down movement of the adjusting beam 530 is limited and guided by the second guide rods 511 of the mounting frame 510, the lower end of the adjusting rod 540 is rotatably connected to the fixed beam 520, and the upper end of the adjusting rod 540 is threadedly connected to the adjusting beam 530, and the rotating adjusting rod 540 can drive the adjusting beam 530 to move relative to the fixed beam 520 through the principle of the screw rod structure, thereby realizing the installation and adjustment of the upper and lower mounting positions of the fixing frame 100, the structure is simple, and it is easy to use.

[0057] In actual application, in addition to the above structure, the adjusting rod 540 can also be threadedly connected to the fixed beam 520 and rotatably connected to the adjusting beam 530. By rotating the adjusting rod 540, the adjusting rod 540 can be moved up and down relative to the fixed beam 520 and drive the adjusting beam 530 to move, thereby realizing position adjustment; or, a nut is provided on the adjusting beam 530 and threadedly connected to the adjusting rod 540, and the adjusting rod 540 is rotated to drive the adjusting beam 530 to move through the nut; or, the adjusting rod 540 itself can directly move up and down to drive the fixed beam 520 to move. The specific structure of the mounting assembly 500 can be changed accordingly according to actual use needs.

[0058] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A material cutting device, characterized in that: include: A fixed frame, wherein a driver is provided on the fixed frame; A fixed knife is connected to the fixed frame, and the driver is drivingly connected to a movable seat, and can drive the movable seat to move closer to or away from the fixed knife; The movable knife is connected to the movable seat, the fixed knife is provided with a first mating surface, and the movable knife is correspondingly provided with a second mating surface. A floating structure is provided between the fixed knife and the fixed frame and / or between the movable knife and the movable seat. When the fixed knife and the movable knife are matched, the floating structure can make the first mating surface and the second mating surface have a tendency to move and fit.

2. The material cutting device according to claim 1, characterized in that: The floating structure is arranged between the fixed knife and the fixed frame, and the movable knife is fixedly connected to the movable seat.

3. The material cutting device according to claim 2, characterized in that: The floating structure includes an elastic member, and the elastic member acts between the fixed knife and the fixed frame to make the first matching surface have a tendency to move toward and fit the second matching surface.

4. The material cutting device according to claim 1, characterized in that: The fixed knife or the movable knife is provided with an extension portion, the extension portion extends along the driving direction of the driver, and the extension portion abuts against the second matching surface or the first matching surface correspondingly.

5. The material cutting device according to claim 1, characterized in that: The blade of the fixed knife is inclined relative to the blade of the movable knife, so that a preset angle is formed between the blade of the fixed knife and the blade of the movable knife.

6. The material cutting device according to claim 1, characterized in that: It also includes a material guide, which is arranged on the material input side of the fixed knife. The material guide is provided with a through material channel, and the material channel is used to guide the material to the blade of the fixed knife.

7. The material cutting device according to claim 6, characterized in that: An adjustment component is provided between the material guide and the fixing frame and the material guide and the fixing frame are connected via the adjustment component. The adjustment component is used to adjust the position of the material guide relative to the fixing frame.

8. The material cutting device according to claim 7, characterized in that: The adjusting assembly is provided with an adjusting slot in the form of a long strip, and the material guide is connected to the adjusting slot and can move along the adjusting slot to an adjusting position.

9. The material cutting device according to claim 1, characterized in that: It also includes an installation component for installation, the fixing frame is connected to the installation component, and the installation component can adjust the installation position of the fixing frame.

10. The material cutting device according to claim 9, characterized in that: The mounting assembly includes a mounting frame, a fixed beam, an adjusting beam and an adjusting rod. The mounting frame is used for installation. The fixed beam is fixedly connected to the mounting frame. The fixed frame is fixedly connected to the adjusting beam. Both ends of the adjusting rod are respectively connected to the fixed beam and the adjusting beam, and can drive the adjusting beam to move relative to the fixed beam.

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