A co-directional double-action cutter assembly and a double-action cutter baggage dispenser

Abstract

This utility model discloses a co-directional double-action cutting blade assembly and a double-action cutting blade packaging machine. The co-directional double-action cutting blade assembly includes a base plate, a first cutting structure, a second cutting structure, and a drive structure. A cutting station is formed on the base plate. The first cutting structure and the second cutting structure are respectively disposed on opposite sides of the cutting station. The first cutting structure includes a first mounting base, a flexible device, and a first cutting blade. The first mounting base is drivenly connected to the drive structure. The first cutting blade is connected to the first mounting base through the flexible device. The second cutting structure includes a second mounting base and a second cutting blade. The second mounting base is drivenly connected to the drive structure. The second cutting blade is connected to the second mounting base. The flexible device provides an elastic force to drive the first cutting blade and the second cutting blade to abut against each other. This utility model can effectively reduce operating noise and has good cutting blade stability, achieving more efficient and precise cutting.

Description

Technical Field

[0001] This utility model relates to the field of food packaging equipment technology, specifically to a co-directional double-action cutting blade assembly and a double-action cutting blade packaging machine. Background Technology

[0002] Currently, in the packaging process of instant noodles and other foods, it is generally necessary to put the seasoning packets into the packaging bags or boxes in sequence. Before being put into the packaging, the seasoning packets are in the same bag. They need to be cut into individual packets and then put into the packaging in sequence.

[0003] Current baggage delivery machines generally use a stepper motor in conjunction with a rocker arm and cam drive to cut the bag by continuous rotation of a single cutter, or a linear cylinder to drive a single-sided cutter to reciprocate. These methods have the problem of high noise (>80 decibels) and unstable operation and poor baggage delivery efficiency due to the excessively long cutter stroke during the cutting process. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a co-directional double-action cutting blade assembly and a double-action cutting blade bag feeder, which can effectively reduce operating noise and has good cutting blade stability, achieving more efficient and more accurate cutting.

[0005] One of the objectives of this utility model is to provide a co-directional dual-action cutting blade assembly, which is achieved by the following technical solution:

[0006] A co-directional dual-action cutting blade assembly includes a substrate, a first cutting structure, a second cutting structure, and a driving structure;

[0007] A cutting station is formed on the substrate; the first cutting structure and the second cutting structure are respectively disposed on opposite sides of the cutting station;

[0008] The first cutting structure includes a first mounting base, a flexible device, and a first cutting blade; the first mounting base is driven by the drive structure; the first cutting blade is connected to the first mounting base via the flexible device; the second cutting structure includes a second mounting base and a second cutting blade; the second mounting base is driven by the drive structure; the second cutting blade is connected to the second mounting base.

[0009] The driving structure provides power to move the first cutting structure and the second cutting structure closer or further apart, thereby achieving continuous cutting of small bags; when the first cutting structure and the second cutting structure are close to each other, the first cutting blade and the second cutting blade contact each other and can slide relative to each other, and the flexible device provides an elastic force to drive the first cutting blade and the second cutting blade to abut against each other.

[0010] In one optional embodiment, the first cutting structure further includes a first slide rail device; the first mounting base is connected to the substrate via the first slide rail device, thereby allowing the first mounting base to slide relative to the substrate, driving the first cutting blade closer to or further away from the cutting station;

[0011] The second cutting structure also includes a second slide rail device; the second mounting base is connected to the substrate through the second slide rail device, so that the second mounting base can slide relative to the substrate, driving the second cutting blade to move closer to or away from the cutting station.

[0012] In one optional embodiment, a connecting surface and a first cutting surface are respectively formed on opposite sides of the first cutting blade, and the first cutting blade has a first cutting edge;

[0013] The second cutting blade has a guide surface and a second cutting surface on opposite sides, and the second cutting blade has a second cutting edge; the first cutting edge and the second cutting edge are arranged opposite to each other, the first cutting surface and the second cutting surface are in contact and can slide relative to each other, and the connecting surface is used to connect with the flexible device.

[0014] In one optional embodiment, the flexible device includes a spring fixing plate, a spring connecting plate, and a flexible spring. One end of the flexible spring is connected to the first mounting base through the spring fixing plate, and the other end is connected to the connecting surface of the first cutting blade through the spring connecting plate.

[0015] In one optional embodiment, pre-joint portions extending toward the first cutting blade are formed on both sides of the second cutting blade, and the two pre-joint portions are respectively disposed on opposite sides of the cutting station; the top surfaces of the two pre-joint portions are slidably connected to the first cutting surface of the first cutting blade.

[0016] In one optional embodiment, continuous V-shaped serrated surfaces are formed on the first cutting surface, the second cutting surface, and the top surface of the pre-joint portion.

[0017] In one alternative embodiment, the first cutting edge and the second cutting edge are set at an angle.

[0018] In one optional embodiment, a cutter guide structure is further included; the cutter guide structure includes a guide link, one end of which is hinged to a first mounting base, and the other end is provided with a guide wheel, which is in rolling connection with the edge of the guide surface.

[0019] In one optional embodiment, the drive structure includes a drive component, a pulley assembly, a first crank-connecting rod assembly, and a second crank-connecting rod assembly; the first crank-connecting rod assembly is connected to the first mounting base, and the second crank-connecting rod assembly is connected to the second mounting base; the drive component is connected to the first crank-connecting rod assembly and the second crank-connecting rod assembly respectively via the pulley assembly.

[0020] The second objective of this utility model is to provide a double-acting cutter bag-feeding machine, which is achieved by the following technical solution:

[0021] A double-action cutter bagging machine includes a frame, on which a material storage unit, a material guiding unit, a length control unit, a clamping unit, and a human-machine interaction unit are provided, along with a co-directional double-action cutter assembly as described in any one of the objectives of this utility model; the co-directional double-action cutter assembly is connected to the frame via a base plate.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] This utility model's co-directional double-action cutting blade assembly uses a drive structure to power the first and second cutting structures to move closer or further apart for cutting. The two cutting blades move synchronously towards each other from both sides of the connected small package, with the blades meeting in the middle. This cuts the connected small package that has continuously passed through the cutting station into multiple independent small packages. This co-directional double-action cutting method can apply force in both directions to reduce material deformation, resulting in a smoother cut without burrs and reduced noise. Furthermore, the bi-directional cutting blades have a shorter single-trip travel distance, and the first and second cutting blades are more stable during the cutting process, greatly improving production efficiency. On the other hand, when the first cutting structure and the second cutting structure approach each other, the first cutting blade and the second cutting blade contact each other and can slide relative to each other. By setting a flexible device, the first cutting blade becomes a flexible cutter. The first cutting blade has a certain floating stroke during the cutting process, avoiding blade breakage caused by rigid collision. The flexible device provides an elastic force to drive the first cutting blade and the second cutting blade to abut, that is, the flexible device provides continuous pressure, so that the first cutting blade can adaptively fit the second cutting blade, eliminating the gap between the two, ensuring the accuracy of the slitting action and the quality of the cut, and achieving more efficient and accurate slitting. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the co-directional dual-action cutting blade assembly of Example 1;

[0025] Figure 2 This is a front view of the co-directional double-moving cutter assembly of Embodiment 1;

[0026] Figure 3 This is a schematic diagram of the first and second cutting structures of the co-directional double-moving cutter assembly in Embodiment 1;

[0027] Figure 4 This is a top view of the first and second cutting structures of the co-directional double-acting cutter assembly in Embodiment 1;

[0028] Figure 5 This is a schematic diagram of the structure of the double-action cutter baggage feeder in Example 2.

[0029] In the diagram: 10. First cutting structure; 11. First mounting base; 12. First cutting blade; 121. First blade face; 122. First cutting edge; 123. Connecting surface; 13. First slide rail device; 14. Flexible device; 141. Spring fixing plate; 142. Spring connecting plate; 143. Flexible spring; 15. First adjusting plate; 20. Second cutting structure; 21. Second mounting base; 22. Second cutting blade; 221. Second blade face; 222. Second cutting edge ; 223, Guide surface; 224, Pre-connection section; 23, Second slide rail device; 25, Second adjusting plate; 30, Base plate; 31, Cutting station; 40, Drive structure; 41, First crank connecting rod device; 42, Second crank connecting rod device; 50, Cutting blade guide structure; 51, Guide connecting rod; 52, Guide wheel; 90, Frame; 91, Material storage unit; 92, Material guiding unit; 93, Length control unit; 94, Clamping unit; 95, Human-machine interaction unit. Detailed Implementation

[0030] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Unless otherwise specified, the materials and equipment used in this embodiment are all commercially available. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0031] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and 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 on this application. In the description of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0032] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected," "linked," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a connection through an intermediary, or a connection within two elements or an interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0033] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product, or apparatus.

[0034] Example 1:

[0035] Please refer to Figure 1-4 This embodiment provides a co-directional dual-action cutting blade assembly, including a substrate 30, and a first cutting structure 10, a second cutting structure 20 and a driving structure 40 mounted on the substrate 30.

[0036] The substrate 30 mainly serves as a connection and support, providing a mounting base for each component and mounting the co-directional double-action cutter assembly of this embodiment onto the double-action cutter packaging machine. A cutting station 31 is formed in the middle of the substrate 30; the first cutting structure 10 and the second cutting structure 20 are arranged opposite to each other on both sides of the cutting station 31, and the two work together to cut the continuous small bags passing through the cutting station 31 into multiple independent small bags.

[0037] The first cutting structure 10 includes a first mounting base 11, a flexible device 14, and a first cutting blade 12; the first mounting base 11 is connected to the drive structure 40 in a transmission manner; the first cutting blade 12 is connected to the first mounting base 11 through the flexible device 14.

[0038] The second cutting structure 20 includes a second mounting base 21 and a second cutting blade 22. The second mounting base 21 is connected to the drive structure 40 in a transmission manner; the second cutting blade 22 is connected to the second mounting base 21.

[0039] Based on the above structure, during use, the drive structure 40 provides power to move the first cutting structure 10 and the second cutting structure 20 closer or further apart to cut. By setting two cutting blades (first cutting blade 12 and second cutting blade 22) to move synchronously towards each other from both sides of the connected small package, with the blades converging in the middle, the connected small package passing through the cutting station 31 is cut into multiple independent small packages. This unidirectional double-action cutting method can apply force in both directions to reduce material deformation, resulting in a smoother cut without burrs and reduced noise. Furthermore, the bidirectional cutting blades have a shorter single-trip travel distance, and the first cutting blade 12 and the second cutting blade 22 are more stable during the cutting process, greatly improving production efficiency. On the other hand, when the first cutting structure 10 and the second cutting structure 20 approach each other, the first cutting blade 12 and the second cutting blade 22 come into contact and can slide relative to each other. By setting the flexible device 14, the first cutting blade 12 becomes a flexible cutter. The first cutting blade 12 has a certain floating stroke during the cutting process to avoid blade breakage caused by rigid collision. The flexible device 14 provides an elastic force to drive the first cutting blade 12 and the second cutting blade 22 to abut, that is, the flexible device 14 provides continuous pressure, so that the first cutting blade 12 can adaptively fit the second cutting blade 22, eliminating the gap between the two, ensuring the accuracy of the cutting action and the quality of the cut, and achieving more efficient and accurate cutting.

[0040] The first cutting structure 10 in this embodiment also includes a first slide rail device 13; the first mounting base 11 is connected to the substrate 30 through the first slide rail device 13, so that the first mounting base 11 can slide relative to the substrate 30, thereby driving the first cutting blade 12 to move closer to or away from the cutting station 31.

[0041] The second cutting structure 20 also includes a second slide rail device 23; the second mounting base 21 is connected to the substrate 30 through the second slide rail device 23, so that the second mounting base 21 can slide relative to the substrate 30, driving the second cutting blade 22 to move closer to or away from the cutting station 31.

[0042] Both the first slide rail device 13 and the second cutting structure 20 can be implemented using a guide rail slider mechanism. This involves fixing the guide rail to the base plate 30 and the slider to the first mounting base 11 or the second mounting base 21; the first mounting base 11 or the second mounting base 21 is then slidably connected to the base plate 30. This allows both the first cutting structure 10 and the second cutting structure 20 to slide on the base plate 30, providing guidance and constraint for the first cutting blade 12 and the second cutting blade 22 during the cutting process, preventing wobbling and improving stability during cutting.

[0043] The first cutting blade 12 has a connecting surface 123 on its top surface, a first cutting surface 121 on its bottom surface, and a first cutting edge 122 on its edge. Correspondingly, the second cutting blade 22 has a guide surface 223 on its bottom surface, a second cutting surface 221 on its top surface, and a second cutting edge 222 on its edge.

[0044] The first blade 122 and the second blade 222 are arranged opposite to each other, and they meet in the cutting station 31 to cut the connected small package into multiple independent small packages. The first blade 121 and the second blade 221 are in contact and can slide relative to each other, and the connecting surface 123 is used to connect with the flexible device 14.

[0045] Specifically, the flexible device 14 includes a spring fixing plate 141, a spring connecting plate 142, and a flexible spring 143. One end of the flexible spring 143 is connected to the first mounting base 11 via the spring fixing plate 141. That is, one end of the flexible spring 143 is clamped between the spring fixing plate 141 and the first mounting base 11, and the spring fixing plate 141, the flexible spring 143, and the first mounting base 11 are locked together by bolts. The other end of the flexible spring 143 is connected to the connecting surface 123 of the first cutting blade 12 via the spring connecting plate 142. That is, one end of the flexible spring 143 is clamped between the spring fixing plate 141 and the first mounting base 11, and the spring connecting plate 142, the flexible spring 143, and the first cutting blade 12 are locked together by bolts, and the spring fixing plate 141, the flexible spring 143, and the first mounting base 11 are locked together by bolts. In this embodiment, a flexible spring 143 applies continuous elastic pressure to the connecting surface 123 of the first cutting blade 12. Compared to the tensioning method of a tension spring, the flexible spring 143 in this embodiment can provide a more uniform pressure distribution on the contact surface between the first blade surface 121 and the second blade surface 221, avoiding the problem of insufficient contact pressure due to tension attenuation in the middle section. Furthermore, the flexible spring 143 and the first cutting blade 12 are in surface contact without relative sliding, which can effectively reduce wear, extend the service life of the flexible device 14, and facilitate maintenance.

[0046] In this embodiment, the second cutting blade 22 has pre-connection portions 224 extending toward the first cutting blade 12 on both sides. The two pre-connection portions 224 are respectively disposed on opposite sides of the cutting station 31, making the second cutting blade 22 U-shaped. The top surfaces of the two pre-connection portions 224 are slidably connected to the first cutting surface 121 of the first cutting blade 12. The pre-connection portions 224 guide the second cutting surface 221 at the top of the second cutting blade 22 to contact the first cutting surface 121 at the bottom of the first cutting blade 12, avoiding blade collision damage.

[0047] The first cutting edge 121, the second cutting edge 221, and the top surface of the pre-joint portion 224 are all formed with continuous V-shaped serrated surfaces. The serrated cutting can reduce the stretching and deformation of the connected small packages, keep the cut flat, and at the same time, when the bag-feeding machine is working at high frequency, the continuous V-shaped serrated surfaces can reduce the frictional heat between the blade and the connected small packages, and prevent the materials from melting and sticking together.

[0048] The first blade 122 and the second blade 222 are set at an angle. Preferably, the relative angle between the first blade 122 and the second blade 222 is 0°-15°. This creates an inclined cutting edge between the first blade 122 and the second blade 222, allowing for a gradual cutting motion that cuts through the small bag gradually, reducing the instantaneous impact of the blade on the bag, minimizing compression deformation, and avoiding rough edges or wrinkles.

[0049] Furthermore, it also includes a cutter guide structure 50; the cutter guide structure 50 includes a guide link 51, one end of which is hinged to the first mounting base 11, and the other end is provided with a guide wheel 52, which is in rolling contact with the edge of the guide surface 223. The cutter guide structure 50 guides the cutting motion of the first cutting structure 10 and the second cutting structure 20 in the horizontal direction, so that the first blade surface 121 and the second blade surface 221 can fit better, resulting in a better cutting effect. A torsion spring can also be provided at the hinge point between the guide link 51 and the first mounting base 11, so that the guide link 51 has an upward rotational elastic force, making the guide wheel 52 in close contact with the guide surface 223.

[0050] The drive structure 40 can be configured with dual servo motors, where two servo motors drive the first mounting base 11 and the second mounting base 21 to slide horizontally, providing good flexibility. In this embodiment, the drive structure 40 uses a single servo motor. Specifically, it includes a drive component (not shown), a pulley device (not shown), a first crank-connecting rod device 41, and a second crank-connecting rod device 42. The first crank-connecting rod device 41 is connected to the first mounting base 11, and the second crank-connecting rod device 42 is connected to the second mounting base 21. A first adjusting plate 15 can be provided at the connection between the first crank-connecting rod device 41 and the first mounting base 11, and a second adjusting plate 25 can be provided at the connection between the second crank-connecting rod device 42 and the second mounting base 21. The first adjusting plate 15 and the second adjusting plate 25 can respectively fine-tune the longitudinal or vertical directions of the first mounting base 11 and the second mounting base 21 to achieve more precise alignment. The drive component is connected to the first crank-connecting rod device 41 and the second crank-connecting rod device 42 via the pulley device.

[0051] Power is provided by a drive component, whose rotating joint transmits power to the first crank-connecting rod assembly 41 and the second crank-connecting rod assembly 42 via a pulley system. The first crank-connecting rod assembly 41 and the second crank-connecting rod assembly 42 respectively convert the rotating joint into a horizontal sliding joint for the first mounting base 11 and the second mounting base 21, causing the first cutting structure 10 and the second cutting structure 20 connected thereto to move closer or further apart, achieving continuous cutting of small bags with higher synchronization. The specific structures of the pulley system and the crank-connecting rod assembly are readily understood by those skilled in the art and will not be described in detail here.

[0052] Example 2:

[0053] Please refer to Figure 5 This embodiment provides a double-action cutting and packaging machine based on embodiment 1, including a frame 90. The frame 90 is equipped with a material storage unit 91, a material guiding unit 92, a length control unit 93, a clamping unit 94, and a human-machine interaction unit 95. It also includes a co-directional double-action cutting blade assembly as in embodiment 1; the co-directional double-action cutting blade assembly is connected to the frame 90 via a base plate 30.

[0054] The material storage unit 91 stores the connected bags, the guiding unit 92 guides the connected bags, and the length control unit 93 is located near the guiding unit 92 to detect the length of the connected bags. The clamping unit 94 is located above the cutting station, guiding the connected bags to the cutting station and providing the power for the connected bags to move between the units. The human-machine interaction unit 95 provides human-machine interaction functions. The material storage unit 91, guiding unit 92, length control unit 93, clamping unit 94, human-machine interaction unit 95, and co-directional double-action cutter assembly are electrically or signal connected to the main control system, thus realizing the intelligent control of the double-action cutter bag feeder.

[0055] Although certain components and embodiments of this application have been illustrated and described, many modifications and alterations (e.g., variations in the size, dimensions, structure, shape and proportion of the various elements, installation arrangement, material use, color, orientation, etc.) will be conceived by those skilled in the art without actually departing from the scope and spirit of the claims.

[0056] Finally, it should be noted that the above embodiments are only preferred embodiments of this utility model and should not be used to limit the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A co-directional double-acting cutter assembly, characterized in that, Includes a substrate, a first cutting structure, a second cutting structure, and a driving structure; A cutting station is formed on the substrate; the first cutting structure and the second cutting structure are respectively disposed on opposite sides of the cutting station; The first cutting structure includes a first mounting base, a flexible device, and a first cutting blade; the first mounting base is driven by the drive structure; the first cutting blade is connected to the first mounting base via the flexible device; the second cutting structure includes a second mounting base and a second cutting blade; the second mounting base is driven by the drive structure; the second cutting blade is connected to the second mounting base. The driving structure provides power to move the first cutting structure and the second cutting structure closer or further apart, thereby achieving continuous cutting of small bags; when the first cutting structure and the second cutting structure are close to each other, the first cutting blade and the second cutting blade contact each other and can slide relative to each other, and the flexible device provides an elastic force to drive the first cutting blade and the second cutting blade to abut against each other.

2. The co-directional dual-action cutting blade assembly according to claim 1, characterized in that, The first cutting structure further includes a first slide rail device; the first mounting base is connected to the substrate through the first slide rail device, thereby allowing the first mounting base to slide relative to the substrate and drive the first cutting blade to move closer to or away from the cutting station; The second cutting structure also includes a second slide rail device; the second mounting base is connected to the substrate through the second slide rail device, so that the second mounting base can slide relative to the substrate, driving the second cutting blade to move closer to or away from the cutting station.

3. The co-directional dual-action cutting blade assembly according to claim 2, characterized in that, The first cutting blade has a connecting surface and a first cutting surface on opposite sides, and the first cutting blade has a first cutting edge; The second cutting blade has a guide surface and a second cutting surface on opposite sides, and the second cutting blade has a second cutting edge; the first cutting edge and the second cutting edge are arranged opposite to each other, the first cutting surface and the second cutting surface are in contact and can slide relative to each other, and the connecting surface is used to connect with the flexible device.

4. The co-directional dual-action cutting blade assembly according to claim 3, characterized in that, The flexible device includes a spring fixing plate, a spring connecting plate, and a flexible spring. One end of the flexible spring is connected to the first mounting base through the spring fixing plate, and the other end is connected to the connecting surface of the first cutting blade through the spring connecting plate.

5. A co-directional dual-action cutting blade assembly according to claim 4, characterized in that, The second cutting blade has pre-joints extending toward the first cutting blade on both sides, and the two pre-joints are respectively disposed on opposite sides of the cutting station; the top surfaces of the two pre-joints are slidably connected to the first cutting surface of the first cutting blade.

6. A co-directional dual-action cutting blade assembly according to claim 5, characterized in that, The first cutting face, the second cutting face, and the top surface of the pre-joint part are all formed with continuous V-shaped sawtooth surfaces.

7. A co-directional dual-action cutting blade assembly according to claim 3, characterized in that, The first and second cutting edges are set at an angle.

8. A co-directional dual-action cutting blade assembly according to claim 3, characterized in that, It also includes a cutter guide structure; the cutter guide structure includes a guide link, one end of which is hinged to the first mounting base, and the other end is provided with a guide wheel, which is rolledly connected to the edge of the guide surface.

9. A co-directional dual-action cutting blade assembly according to claim 3, characterized in that, The drive structure includes a drive component, a pulley assembly, a first crank-connecting rod assembly, and a second crank-connecting rod assembly; the first crank-connecting rod assembly is connected to the first mounting base, and the second crank-connecting rod assembly is connected to the second mounting base; the drive component is connected to the first crank-connecting rod assembly and the second crank-connecting rod assembly respectively via the pulley assembly.

10. A double-action cutter bag-feeding machine, characterized in that, The device includes a frame on which a material storage unit, a material guiding unit, a length control unit, a clamping unit, and a human-machine interaction unit are provided, along with a co-directional double-action cutting blade assembly as described in any one of claims 1-9; the co-directional double-action cutting blade assembly is connected to the frame via a base plate.

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