Protective device for knife roll opening of tobacco cutter

Abstract

The utility model belongs to the technical field of tobacco machinery, and discloses a protective device for a knife roll opening of a tobacco cutter. The protective device for the knife roll opening of the tobacco cutter comprises a protective cover, a clamping piece, a hooking piece and a handle, wherein the protective cover is configured to cover the knife roll; the clamping piece is arranged at the upper end of the protective cover, and the clamping piece is configured to be clamped with a gap between the knife roll and the upper side plate; the hooking piece is arranged at the lower end of the protective cover and is configured to be hooked with the lower side plate group; the handle is fixed to the protective cover. According to the utility model, the structure is simpler, and the protective cover is arranged, so that the shredding cutter on the cutter roller can be covered when the cutter door assembly on the machine body is replaced and the upper copper bar chain and the lower copper bar chain are maintained, the damage to maintenance personnel is prevented, and the personnel safety is guaranteed. The protection device for the knife roll opening of the tobacco cutter is installed outside the knife roll through the structure and the connection relation of the knife roll and the machine head, installation is convenient, installation holes do not need to be additionally formed in the knife roll or the machine head, and the installation cost is also reduced.

Description

Technical Field

[0001] This utility model relates to the field of tobacco machinery technology, and in particular to a protective device for the cutter roller of a tobacco cutting machine. Background Technology

[0002] In the tobacco manufacturing process, tobacco cakes need to be shredded using a shredder. The shredder consists of a machine body and a machine head. The upper copper busbar chain, lower copper busbar chain, and knife gate assembly are located in the machine body. The knife roller is located in the machine head and has eight shredding knives. Specifically, the edges of the upper side plate, lower side plate assembly, left side plate, and right side plate of the machine head together form the knife roller opening. The knife roller is located inside the machine head and close to the knife roller opening. The lower side plate assembly includes a lower side plate and a guide plate. The guide plate is located outside the lower side plate and guides the tobacco cake during transport.

[0003] Tobacco leaves enter between the upper and lower copper busbars and are compressed into tobacco cakes. They are then conveyed to the cutter assembly, where the tobacco leaves are further compressed. The tobacco cake then enters the machine head, where the rotating cutter rollers shred it. To ensure the shredding process meets requirements, the upper and lower copper busbars, cutter assembly, and cutter rollers require regular maintenance. Replacing the cutter assembly and maintaining the upper and lower copper busbars necessitates opening and rotating the machine head. During operation, the technician's left arm is very close to the cutter rollers, posing a risk of cuts from the shredder.

[0004] Therefore, there is an urgent need for a protective device for the cutter roller of a shredder to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to provide a protective device for the cutter roller of a shredder. When replacing the cutter door assembly on the machine body and maintaining the upper and lower copper busbar chains, the shredder on the cutter roller can be covered to prevent injury to maintenance personnel and ensure personnel safety. In addition, the structure is relatively simple and easy to install.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A protective device for the cutter roller of a shredder includes:

[0008] The protective cover is configured to cover the outside of the cutter roller;

[0009] A snap-fit ​​element is disposed at the upper end of the protective cover, and the snap-fit ​​element is configured to snap into the gap between the cutter roller and the upper side plate;

[0010] A hook-and-loop fastener is provided at the lower end of the protective cover, and the hook-and-loop fastener is configured to hook onto the lower side panel assembly;

[0011] The handle is fixed to the protective cover.

[0012] In some possible implementations, the hook is hooked to the lower side plate of the lower side plate assembly, and the hook is able to abut against the side of the guide plate of the lower side plate assembly near the lower side plate; or, the hook is hooked to the guide plate of the lower side plate assembly.

[0013] In some possible implementations, the protective cover is an arc-shaped plate, and the arc-shaped plate conforms to the outer wall of the cutter roller.

[0014] In some possible implementations, the hook is a V-shaped plate, one end of which is connected to the protective cover, with the opening of the V-shaped plate facing downwards.

[0015] In some possible implementations, two hooks are provided, which are spaced apart from each other on the protective cover, and the two hooks are configured to correspond one-to-one with the two guide plates.

[0016] In some possible implementations, the protective device for the cutter roller of the shredder includes fasteners, and both ends of the handle are respectively connected to the protective cover via the fasteners.

[0017] In some possible implementations, the vertical projection of the protective cover is a rectangular frame with a length of 46 cm and a width of 26 cm.

[0018] In some possible implementations, the handle includes a handle body and two contact portions, two of which are fixed to both ends of the handle body for contacting the protective cover. The vertical projection of the handle body is a rectangular frame with a length of 15 cm and a width of 2.5 cm. The contact portions have a length of 2 cm and a width of 1 cm.

[0019] In some possible implementations, the snap-fit ​​element is welded to the protective cover, and the hook-fit element is welded to the protective cover.

[0020] In some possible implementations, the protective cover, the snap-fit ​​connector, the hook connector, and the handle are all made of stainless steel.

[0021] The beneficial effects of this utility model are:

[0022] This utility model provides a protective device for the cutter roller opening of a shredder, comprising a protective cover, a snap-fit ​​component, a hook-fit component, and a handle, with a relatively simple structure. The protective cover covers the cutter roller, preventing injury to maintenance personnel and ensuring their safety when replacing the cutter assembly on the machine body or maintaining the upper and lower copper busbar chains. During installation, the protective device is moved to the cutter roller opening using the handle. The snap-fit ​​component is then engaged in the gap between the cutter roller and the upper side plate, and the hook-fit component is then hooked onto the lower side plate assembly for easy installation. By engaging the snap-fit ​​component in the gap between the cutter roller and the upper side plate, and hooking the hook-fit component onto the lower side plate assembly, the protective device for the cutter roller opening is installed outside the cutter roller using the inherent structure and connection relationship of the cutter roller and the machine head. This eliminates the need for additional machining of mounting holes on the cutter roller or machine head, reducing installation costs. Attached Figure Description

[0023] Figure 1 This is a front view of the protective device for the cutter roller of the shredder provided by this utility model;

[0024] Figure 2 This is a side view of the protective device (hook-connector hooked to guide plate) for the cutter roller of the shredder provided by this utility model;

[0025] Figure 3 This is a rear view of the protective device for the cutter roller of the shredder provided by this utility model;

[0026] Figure 4 This is a partial structural schematic diagram of the protective device (hook-connector hooked to the lower side plate) for the cutter roller of the shredder provided by this utility model.

[0027] In the picture:

[0028] 1. Protective cover; 2. Snap-fit ​​connector; 3. Hook connector; 4. Handle; 41. Handle body; 42. Contact part; 5. Bolt; 6. Nut;

[0029] 100. Upper side panel; 200. Lower side panel assembly; 201. Lower side panel; 202. Guide plate. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0031] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; 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 based on the specific circumstances.

[0032] 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 below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0034] like Figures 1 to 4 As shown, this utility model provides a protective device for the cutter roller opening of a shredder, mainly applied to the KT2 shredder. The protective device includes a protective cover 1, a snap-fit ​​component 2, a hook-fit component 3, and a handle 4. The protective cover 1 is configured to cover the cutter roller. The snap-fit ​​component 2 is located at the upper end of the protective cover 1 and is configured to engage with the gap between the cutter roller and the upper side plate 100. Figure 2The middle cutter roller is located on the left side of the protective cover 1; the hook 3 is located at the lower end of the protective cover 1 and is configured to hook onto the lower side plate assembly 200; the handle 4 is fixed to the protective cover 1. The structure of this utility model is relatively simple. The protective cover 1 covers the cutter roller. When replacing the cutter assembly on the machine body or maintaining the upper and lower copper busbar chains, the protective cover 1 can cover the shredder on the cutter roller, preventing injury to maintenance personnel and ensuring personnel safety. During installation, the handle 4 is used to move the protective device from the cutter roller opening to the cutter roller opening, the locking piece 2 is locked into the gap between the cutter roller and the upper side plate 100, and then the hook 3 is hooked onto the lower side plate assembly 200 for easy installation. The snap-fit ​​part 2 is snapped into the gap between the cutter roller and the upper side plate 100, and the hook-fit part 3 is hooked into the lower side plate assembly 200. By utilizing the structure and connection relationship of the cutter roller and the machine head itself, the protective device for the cutter roller opening of the shredder is installed outside the cutter roller. There is no need to process additional mounting holes for the cutter roller or the machine head, which reduces the installation cost.

[0035] Optionally, in this embodiment, the snap-fit ​​component 2 is welded to the protective cover 1, and the hook-fit component 3 is welded to the protective cover 1, ensuring reliable and strong connections between the snap-fit ​​component 2 and the protective cover 1, and between the hook-fit component 3 and the protective cover 1. In other embodiments, the snap-fit ​​component 2, the protective cover 1, and the hook-fit component 3 are an integrated structure formed by bending sheet metal. Optionally, in this embodiment, the protective cover 1, the snap-fit ​​component 2, the hook-fit component 3, and the handle 4 are all made of stainless steel, which is corrosion-resistant and can withstand significant mechanical stress.

[0036] Alternatively, in one embodiment, as Figure 4 As shown, the hook 3 hooks onto the lower side plate 201 of the lower side plate assembly 200, and the hook 3 can abut against the side of the guide plate 202 of the lower side plate assembly 200 near the lower side plate 201. This arrangement makes the connection between the hook 3 and the lower side plate assembly 200 more secure, and brings the protective cover 1 closer to the cutter roller, saving space after installation. Optionally, in another embodiment, as... Figure 2 As shown, the hook 3 is hooked onto the guide plate 202 of the lower side plate assembly 200, which also enables the installation of the hook 3 and makes installation easy.

[0037] Optionally, in this embodiment, the protective cover 1 is an arc-shaped plate, and the arc-shaped plate conforms to the outer wall of the cutter roller, that is, it is enlarged according to the arc of the outer wall of the cutter roller, saving space and better covering the cutter roller. It also reduces impact injury when maintenance personnel bump into the protective cover 1. Optionally, in this embodiment, the arc-shaped plate is forged, improving the mechanical properties of the protective cover 1. Furthermore, as... Figure 1As shown, the vertical projection of the protective cover 1 is a rectangular frame. The length L1 of the rectangular frame is 46 cm, and the width W1 of the rectangular frame is 26 cm. By measuring the cutter roller opening of the KT2 shredder, using an arc-shaped plate of the above dimensions, the left and right ends of the protective cover 1 can respectively abut against the left and right side plates of the machine head. Additionally, as... Figure 2 As shown, the distance H between the lowest and highest points of the curvature of the protective cover 1 is 3 centimeters.

[0038] In other embodiments, the protective cover 1 may also be a straight plate, an L-shaped plate, or an irregularly shaped plate structure, as long as it can cover the cutter roller, and is not limited to this embodiment.

[0039] Optionally, in this embodiment, the hook member 3 is a V-shaped plate, one end of which is connected to the protective cover 1, with the opening of the V-shaped plate facing downwards. This configuration simplifies the structure of the hook member 3, makes it easy to manufacture, and increases the contact area between the hook member 3 and the lower side plate assembly 200, thereby enhancing the stability of the connection. In other embodiments, the hook member 3 is an arc-shaped plate or arc-shaped strip, one end of which is connected to the protective cover 1, with the opening of the arc-shaped plate or arc-shaped strip facing downwards.

[0040] Optionally, in this embodiment, two hooks 3 are provided, and the two hooks 3 are spaced apart on the protective cover 1. The two hooks 3 are configured to correspond one-to-one with the two guide plates 202, so that the protective device for the cutter roller opening of the shredder can be more reliably fixed to the cutter roller and the machine head.

[0041] Optionally, in this embodiment, the protective device for the cutter roller of the shredder includes fasteners, and both ends of the handle 4 are connected to the protective cover 1 via fasteners. Specifically, there are two fasteners, namely a bolt 5 and a nut 6. The bolt 5 passes through the handle 4 and the protective cover 1 in sequence and is threadedly connected to the nut 6. Further, the bolt 5 is a 6 mm diameter hexagon socket head cap bolt. In other embodiments, the handle 4 is welded or glued to the protective cover 1, as long as the handle 4 can be fixed to the protective cover 1.

[0042] Optionally, in this embodiment, the handle 4 includes a handle body 41 and two contact portions 42. The two contact portions 42 are fixed to both ends of the handle body 41 for contacting the protective cover 1. The vertical projection of the handle body 41 is a rectangular frame with a length L2 of 15 cm and a width W2 of 2.5 cm. The length L3 of the contact portions 42 is 2 cm, and the width W3 of the contact portions 42 is 1 cm. This design facilitates hand gripping and saves costs. Optionally, in this embodiment, the thickness of the protective cover 1, the thickness of the handle body 41, and the thickness of the contact portions 42 are all 0.2 cm, making the protective device for the cutter roller of the shredder lighter and easier for maintenance personnel to handle.

[0043] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A protective device for the cutter roller mouth of a shredder, characterized in that, include: A protective cover (1) is configured to cover the outside of the cutter roller; A snap-fit ​​element (2) is disposed at the upper end of the protective cover (1), and the snap-fit ​​element (2) is configured to snap into the gap between the cutter roller and the upper side plate (100); Hook (3) is provided at the lower end of the protective cover (1), and the hook (3) is configured to hook with the lower side plate assembly (200); The handle (4) is fixed to the protective cover (1).

2. The protective device for the cutter roller of a shredder according to claim 1, characterized in that, The hook (3) is hooked to the lower side plate (201) of the lower side plate assembly (200), and the hook (3) can abut against the side of the guide plate (202) of the lower side plate assembly (200) near the lower side plate (201); or, the hook (3) is hooked to the guide plate (202) of the lower side plate assembly (200).

3. The protective device for the cutter roller of a shredder according to claim 1, characterized in that, The protective cover (1) is an arc-shaped plate, and the arc-shaped plate conforms to the outer wall of the cutter roller.

4. The protective device for the cutter roller of a shredder according to claim 1, characterized in that, The hook (3) is a V-shaped plate, one end of which is connected to the protective cover (1), and the opening of the V-shaped plate faces downward.

5. The protective device for the cutter roller of a shredder according to claim 1, characterized in that, Two hooks (3) are provided, and the two hooks (3) are spaced apart from the protective cover (1), and the two hooks (3) are configured to correspond one-to-one with the two guide plates (202).

6. The protective device for the cutter roller of a shredder according to claim 1, characterized in that, The protective device for the cutter roller of the shredder includes fasteners, and the two ends of the handle (4) are respectively connected to the protective cover (1) through the fasteners.

7. The protective device for the cutter roller of a shredder according to claim 3, characterized in that, The vertical projection of the protective cover (1) is a rectangular frame with a length of 46 cm and a width of 26 cm.

8. The protective device for the cutter roller of a shredder according to claim 1, characterized in that, The handle (4) includes a handle body (41) and a contact part (42). The two contact parts (42) are fixed to both ends of the handle body (41) for contacting the protective cover (1). The vertical projection of the handle body (41) is a rectangular frame with a length of 15 cm and a width of 2.5 cm. The contact part (42) has a length of 2 cm and a width of 1 cm.

9. The protective device for the cutter roller mouth of a shredder according to any one of claims 1-8, characterized in that, The snap-fit ​​component (2) is welded to the protective cover (1), and the hook-fit component (3) is welded to the protective cover (1).

10. The protective device for the cutter roller mouth of a shredder according to any one of claims 1-8, characterized in that, The protective cover (1), the snap-fit ​​component (2), the hook component (3), and the handle (4) are all made of stainless steel.

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