Upper knife door pressing plate and tobacco cutter

Abstract

The utility model belongs to the technical field of tobacco primary processing equipment, and particularly relates to an upper knife door pressing plate and a tobacco cutter. The upper knife door pressing plate comprises a plate body, a connecting part arranged on the plate body and used for being connected with an upper knife door, and a pressing plane located at the bottom of the plate body and flush with the bottom face of the upper knife door, and the gap distance between the edge of the side, away from a tobacco cutter, of the pressing plane and a cutting piece of the tobacco cutter ranges from 0 mm to 2 mm. The gap distance can be quantitatively reduced, and compared with the scheme that the installation position of the upper cutter door is adjusted through a screw in the prior art, the pressing plate independent of the upper cutter door is provided, the gap distance between the pressing plate and a cutting piece of the tobacco cutter is quantitatively reduced through the pressing plate of the upper cutter door, and implementation is easy and stable; and the position change caused by the operation vibration of the tobacco cutter is avoided. In addition, the pressing plate further has a certain protection effect on the upper cutter door, and the upper cutter door cannot be damaged even if the cutter collides with the upper cutter door.

Description

Technical Field

[0001] The utility model belongs to the technical field of tobacco leaf conditioning equipment, and particularly relates to an upper knife gate pressing plate and a cutting machine. Background Art

[0002] The tobacco cutting machine used in the tobacco industry is one of the main equipment on the leaf conditioning line. It is responsible for evenly cutting tobacco materials into filaments to meet the requirements of subsequent leaf conditioning and cigarette manufacturing processes. To ensure the quality of the cut tobacco, theoretically, there should be no gap between the rotating cutting member and the fixed knife gate. In actual use, considering safety factors and to prevent the rotating cutting member from hitting the fixed knife gate, there is a certain theoretical gap between the cutting member and the knife gate. If the gap is too large, the cutting process cannot be effectively achieved, and phenomena such as "tobacco slice running" and "tobacco stem running" will occur to the cut tobacco or tobacco stems, affecting the quality of the cut tobacco.

[0003] Chinese Patent CN202323140818.7 provides a gap adjustment device. By calibrating the distance of the scale disk and rotating the adjustment screw to change the relative position between the knife gate and the cutting machine body, the above problems can be solved to a certain extent. However, in this solution, the knife gate is movably arranged, which greatly modifies the cutting machine, and the position will change due to the vibration during the operation of the cutting machine, so it still needs to be calibrated regularly, which is rather inconvenient. Summary of the Utility Model

[0004] In view of the existing situation, the utility model provides an upper knife gate pressing plate and a cutting machine, which are fixedly connected to the upper knife gate to reduce the gap and at least solve one of the above technical problems.

[0005] The technical solution provided by this application is an upper knife gate pressing plate, which is arranged between the upper knife gate and the cutting member of the cutting machine, and includes: a plate body, a connecting portion arranged on the plate body for connecting with the upper knife gate, and a pressing plane located at the bottom of the plate body and flush with the bottom surface of the upper knife gate. The gap distance between the edge of the pressing plane far from the cutting machine and the cutting member of the cutting machine is 0 - 2 mm.

[0006] Further, the plate body retains a sharp corner at the edge far from the cutting machine of the pressing plane, and the remaining edges are chamfered.

[0007] Further, the cutting machine includes side lining plates arranged at both ends in the length direction of the upper knife gate. The gap distance between the edge of the pressing plane far from the cutting machine and the side lining plates is 1.5 mm - 2 mm.

[0008] Further, the thickness and width of the plate body are at least 15 mm.

[0009] Further, starting from the pressing plane, the width of the plate body gradually decreases in the direction away from the pressing plane.

[0010] Further, the side of the plate body close to the cutting machine is a plane, and the included angle between the plane of the side of the plate body close to the cutting machine and the pressing plane is 60° - 70°.

[0011] Further, the connecting portion includes a plurality of screw holes for screwing with the upper knife gate.

[0012] Further, the connecting portion includes a groove for accommodating the head of the screw.

[0013] Further, it is made of ultra-fine grain hard alloy steel.

[0014] Another technical solution provided by this application is a cutting machine, including an upper knife gate and the above-mentioned upper knife gate pressing plate arranged on the upper knife gate.

[0015] The beneficial effects of this application are as follows: The upper knife gate pressing plate of this application is fixedly arranged on the outside of the upper knife gate of the cutting machine, and can quantitatively reduce the gap distance, and control the gap distance between the edge on the side away from the cutting machine of the pressing plane and the cutting member of the cutting machine to be 0 - 2 mm. Compared with the prior art solution of adjusting the installation position of the upper knife gate by using a screw rod, this application provides a pressing plate independent of the upper knife gate. Using this upper knife gate pressing plate to quantitatively reduce the gap distance between the pressing plate and the cutting member of the cutting machine is simple and relatively stable in implementation, and will not cause position changes due to the vibration of the cutting machine during operation. In addition, the pressing plate also has a certain protective effect on the upper knife gate, and even if a knife collision occurs, the upper knife gate will not be damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings incorporated into the specification and constituting a part of the specification illustrate embodiments of the present invention and, together with the description, are used to explain the principles of the present invention. In these drawings, similar reference numerals are used to denote similar elements. The following drawings are some embodiments of the present invention, not all embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 Schematic diagram of an embodiment of the present invention;

[0018] Figure 2 Schematic cross-sectional view of the connecting portion of an embodiment of the present invention;

[0019] Figure 3 Schematic diagram of the use of an embodiment of the present invention;

[0020] Figure 4 Schematic diagram of the installation of an embodiment of the present invention;

[0021] Reference numerals:

[0022] Upper knife gate pressing plate 100; upper knife gate 200; cutting part 300; side lining plate 400; tobacco leaf 500;

[0023] Plate body 1; connecting part 2; pressing plane 3. Specific implementation manner

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0025] In the description of this application, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In this application, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through other features between them. Moreover, the first feature being "above", "over", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "under", and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0027] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "left", "right", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to this application. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0028] Please refer to Figures 1-4, Embodiment 1 provides an upper knife gate pressing plate 100, which is arranged between the upper knife gate 200 and the cutting member 300 of the EVO615 tobacco cutter, and includes: a plate body 1, a connecting portion 2 arranged on the plate body 1 for connecting with the upper knife gate 200, and a pressing plane 3 located at the bottom of the plate body 1 and flush with the bottom surface of the upper knife gate 200. The clearance distance between the edge of the pressing plane 3 away from the tobacco cutter and the cutting member 300 of the tobacco cutter is 0 - 2 mm.

[0029] In the EVO615 tobacco cutter, when the tobacco leaves 500 are pressed tightly, if the clearance distance between the upper knife gate 200 and the cutting member 300 is too large, some of the tobacco leaves 500 will warp due to incomplete fitting, and the so-called "running sheet" phenomenon is likely to occur during the cutting process, resulting in problems such as uneven and irregular cutting of the tobacco leaves 500, seriously affecting the consistency of the cut tobacco and the quality of the final product. Ideally, the clearance distance between the pressing plate and the cutting member 300 of the tobacco cutter is 0, but this state is difficult to achieve and is extremely prone to knife collision. The applicant has found that controlling the clearance within 2 mm has a good production yield.

[0030] Such as Figure 3 , the upper knife gate pressing plate 100 of the present application is fixedly arranged outside the upper knife gate 200 of the tobacco cutter, and can quantitatively reduce the clearance distance, and control the clearance distance between the edge of the pressing plane 3 away from the tobacco cutter and the cutting member 300 of the tobacco cutter to be 0 - 2 mm, ( Figure 3 0 in ). Compared with the prior art solution of adjusting the installation position of the upper knife gate 200 using a screw, the present application provides a pressing plate independent of the upper knife gate 200. Using the upper knife gate pressing plate 100 to quantitatively reduce the clearance distance between the pressing plate and the cutting member 300 of the tobacco cutter is simple and relatively stable in implementation, and will not cause position changes due to the vibration of the tobacco cutter during operation. In addition, the pressing plate also has a certain protective effect on the upper knife gate 200, and the upper knife gate 200 will not be damaged even if a knife collision occurs.

[0031] In this embodiment, the plate body 1 retains a sharp corner at the edge of the pressing plane 3 away from the tobacco cutter, so that the edge of the plate body 1 close to the pressed sheet material is sharper and more precise, facilitating the control of the position of the upper knife gate pressing plate 100, and the sharp corner can provide a clearer boundary, which helps to accurately position and guide the tobacco leaves 500 during the cutting process. Especially in cutting applications that require high precision, it helps to generate a clearer cutting line when the tobacco leaves 500 contact the cutting member. Especially when the tobacco leaves 500 are relatively moist, the sharp corner can cooperate with the cutting member 300 to better separate the tobacco fiber, reduce adhesion, and improve the cutting cleanliness and efficiency. In this embodiment, the remaining edges are chamfered to ensure safety and reduce stress concentration.

[0032] In this embodiment, the thickness of the plate body 1 is 18.5 mm and the width is 19 mm. The thickness and width of the plate body 1 are at least 15 mm, so that the plate body 1 has sufficient strength when pressing the tobacco flakes and cutting the tobacco leaves 500.

[0033] Considering that the width of the pressing plane 3 is relatively wide, if the plate body 1 is set as a square column with the same overall width, it will be relatively bulky and not easy to install. To ensure strength and maintain the shape of the pressing plane 3, in this embodiment, starting from the pressing plane 3, the width of the plate body in the gap direction gradually decreases along the direction away from the pressing plane 3. In addition, the upper knife gate pressing plate 100 with this shape can break in time when hitting the knife at the included angle, which can protect the relatively expensive cutting piece 300.

[0034] Preferably, the side of the plate body 1 close to the tobacco slicer is a plane, which fits with the upper knife gate 200. The included angle between the plane of the side of the plate body 1 close to the tobacco slicer and the pressing plane 3 is 60° - 70°. In this embodiment, this included angle is 61.67°. The plate body 1 with this shape has relatively high strength when pressing flat, and the pressing plane 3 has relatively sharp sharp corners. In this embodiment, the connecting part 2 includes a plurality of screw holes for screwing with the upper knife gate 200. Screwing is convenient and detachable, and is easy to repair. Considering that the width of the pressing plane 3 is relatively wide, in this embodiment, the connecting part 2 also includes a groove for accommodating the head of the screw.

[0035] Such as Figure 4 Considering that when installing this upper knife gate pressing plate 100, the cutting piece 300 is not installed, and the distance from the cutting piece 300 is not easy to calibrate. And the existing tobacco slicers usually include side lining plates 400 provided at both ends in the length direction of the upper knife gate 200, and the distance between the edge of the side lining plate 400 and the cutting piece 300 is relatively fixed. In this embodiment, the gap distance between the edge of the pressing plane 3 away from the knife gate of the tobacco slicer and the edge of the side lining plate 400 is 1.5 mm - 2 mm, so that the gap distance between the edge of the pressing plane 3 away from the tobacco slicer and the cutting piece 300 of the tobacco slicer is 0 - 2 mm. Specifically, in this embodiment, the distance between the outer side of the upper knife gate 200 and the side lining plate 400 is 28 mm, the width of the pressing plane 3 is processed to be 25.2 mm, and when installing with screws, adjusting the tightness can control the gap distance between the edge of the pressing plane 3 away from the knife gate of the tobacco slicer and the edge of the side lining plate 400 to be 1.5 mm - 2 mm.

[0036] This embodiment is made of ultrafine-grained hard alloy steel, has extremely high hardness and wear resistance, is not easy to deform and wear, has a long service life, and greatly reduces the replacement times compared with other materials.

[0037] Embodiment 2 is a tobacco slicer, including the upper knife gate 200 and the upper knife gate pressing plate 100 of Embodiment 1 provided on the upper knife gate 200, including all the technical solutions and beneficial effects of Embodiment 1.

[0038] The content described above can be implemented alone or in various combinations, and these variant forms are all within the protection scope of the present utility model.

[0039] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0040] The above content is a further detailed description of the present utility model in combination with specific preferred embodiments, and it cannot be determined that the specific embodiments of the present utility model are only limited to these descriptions. For those of ordinary skill in the technical field to which the present utility model belongs, without departing from the concept of the present utility model, several simple deductions or substitutions can still be made, and all should be regarded as belonging to the protection scope of the present utility model.

Claims

1. An upper knife door pressure plate, arranged between an upper knife door (200) and a cutting member (300) of a slicing machine, characterized in that: include: A plate body (1), a connecting portion (2) disposed on the plate body (1) and used to connect to the upper knife door (200), and a pressing surface (3) located at the bottom of the plate body (1) and flush with the bottom surface of the upper knife door (200), wherein the gap between the edge of the pressing surface (3) away from the side of the shredder and the cutting member (300) is 0-2 mm.

2. The upper knife door pressure plate according to claim 1, characterized in that: The edge of the plate body (1) on the side of the pressing plane (3) away from the shredder retains a sharp corner, and the remaining edges are chamfered.

3. The upper knife door pressure plate according to claim 1, characterized in that: The shredder comprises side lining plates (400) arranged at both ends of the upper knife door (200) in the length direction, and the gap distance between the edge of the pressing plane (3) away from the shredder and the side lining plates (400) is 1.5 mm-2 mm.

4. The upper knife door pressure plate according to claim 1, characterized in that: The thickness and width of the plate body (1) are at least 15 mm.

5. The upper knife door pressure plate according to claim 1, characterized in that: Starting from the pressing plane (3), the width of the plate body gradually decreases in a direction away from the pressing plane (3).

6. The upper knife door pressure plate according to claim 5, characterized in that: The side of the plate body (1) close to the shredder is a plane, and the angle between the side of the plate body (1) close to the shredder and the pressing plane (3) is 60° to 70°.

7. The upper knife door pressure plate according to claim 1, characterized in that: The connecting portion (2) comprises a plurality of screw holes for being screwed to the upper knife door (200).

8. The upper knife door pressure plate according to claim 7, characterized in that: The connecting portion (2) comprises a groove for accommodating a screw head.

9. The upper knife door pressure plate according to claim 1, characterized in that: Made of ultra-fine grain carbide steel.

10. A slicing machine, characterized in that: It comprises an upper knife door (200) and an upper knife door pressure plate as claimed in any one of claims 1 to 9 and arranged on the upper knife door (200).

Images