A slitting knife set, tobacco cutter

Abstract

The application discloses a longitudinal cutting knife set in the tobacco processing field, which comprises a rack, a first knife roller and a second knife roller rotatably installed on the rack, and the knife teeth of the first knife roller and the second knife roller are staggered; a driving part which is connected with the first knife roller and the second knife roller and drives the first knife roller and the second knife roller to rotate synchronously; and a mounting rod which is rotatably installed on the rack and is provided with a plurality of combing knives radially installed thereon, and the knife teeth of the combing knives are staggered with the knife teeth of the first knife roller and / or the second knife roller. The rotatable mounting roller designed in the application is rotated during use, the combing knives staggered with the knife teeth of the first knife roller and / or the second knife roller are rapidly switched, the replacement speed is effectively improved, the equipment downtime rate is reduced, the replacement speed is fast, the influence on the production of the equipment is small, and the production efficiency is ensured.

Description

Technical Field

[0001] This application relates to the field of tobacco processing technology, specifically to a longitudinal slicing blade assembly and a shredder. Background Technology

[0002] Shredders are key pieces of equipment in tobacco processing, primarily used in tobacco processing production lines and laboratory settings. Industrial-grade equipment employs servo control technology for precise cutting, while laboratory models emphasize small size and low noise. Typically, shredding widths of 0.8-30mm are achieved by adjusting the crankshaft stroke. However, during material cutting, some material can become trapped between the blade teeth. Prolonged operation of this can affect the shredder's efficiency and precision. To address this, a shredding knife is installed. The head of the shredding knife is positioned within the tooth spacing of the blade roller, and as the roller rotates, it removes the trapped material. However, the shredding knife is subjected to prolonged contact and impact from the tobacco shreds, resulting in friction. Therefore, improving the shredding knife replacement speed while maintaining production efficiency is a crucial issue we need to address. Utility Model Content

[0003] The purpose of this application is to provide a longitudinal slicing blade assembly and a shredder to solve the defects in the prior art that affect the production efficiency of the shredder.

[0004] To achieve the above objectives, this application employs the following technical solution:

[0005] This application discloses a longitudinal cutting tool assembly, which includes...

[0006] A frame on which a first cutter roller and a second cutter roller are rotatably mounted, the cutter teeth of the first cutter roller and the second cutter roller being arranged in an alternating manner;

[0007] The drive unit is connected to the first cutter roller and the second cutter roller, and drives the first cutter roller and the second cutter roller to rotate synchronously.

[0008] A mounting rod is rotatably mounted on the frame. A plurality of combing blades are radially mounted on the mounting rod, and the blade teeth of the combing blades are interlaced with the blade teeth of the first cutter roller and / or the second cutter roller. The mounting rod can be rotated to switch to another combing blade, so that the blade teeth of the other combing blade are interlaced with the blade teeth of the first cutter roller and / or the second cutter roller.

[0009] In a further embodiment of this application, the frame includes a first support base and a second support base disposed opposite to each other, and the first cutter roller and the second cutter roller are rotatably mounted in parallel between the first support base and the second support base.

[0010] In a further embodiment of this application, the mounting rod is provided with limiting parts at both ends, and the frame is provided with limiting grooves. The limiting parts are movably placed in the limiting grooves and fixed by fasteners.

[0011] In a further embodiment, the limiting part includes a boss and a mounting base, which are fixedly connected. The side of the mounting base facing away from the boss is fixed to the end of the mounting rod, and the boss is correspondingly placed in the adjacent limiting groove.

[0012] In a further embodiment, a positioning platform is provided on the inner wall of the frame, and the mounting base moves to contact the positioning platform.

[0013] In a further embodiment of this application, the teeth of the combing knife are arc-shaped, and there are two mounting rods corresponding to the first or second cutting roller. The ends of the two mounting rods away from the drive unit are connected to the corresponding first or second cutting rollers by a synchronization mechanism, which is used to make the mounting rods rotate synchronously with the corresponding first or second cutting rollers.

[0014] In a further embodiment, the synchronization mechanism includes a first synchronization wheel and a second synchronization wheel. The second synchronization wheel is fixed to the end of the mounting rod, and the first synchronization wheel is fixed to the end shaft of the cutter roller. The second synchronization wheel and the first synchronization wheel are connected by a synchronization belt.

[0015] In a further embodiment of this application, the teeth of the comb blade are provided with a wear-resistant coating.

[0016] Secondly, this application also discloses a shredder that includes the aforementioned longitudinal slicing blade assembly.

[0017] The beneficial effects of this application are as follows:

[0018] The rotatable mounting roller designed in this application allows for rapid switching between the combing blades that intersect with the teeth of the first and / or second cutter rollers. This effectively improves the changeover speed, reduces equipment downtime, and minimizes the impact on equipment production, thus ensuring production efficiency.

[0019] The design incorporates a limiting part and a limiting groove structure to ensure the path of the rotating and moving installation rod. A positioning platform is also installed on the frame. When the installation rod completes its rotation and is moved upward and fixed, the positioning platform ensures the accuracy of the installation position, thereby ensuring precise positioning after each change of the combing knife and further improving the replacement speed.

[0020] The comb blades are designed with arc-shaped teeth and rotate synchronously with the corresponding blade rollers. As the blade rollers rotate, the comb blades clean the gap between them and continuously switch between them, which greatly extends the service life of the combing components (arc-shaped comb blades and mounting rods). Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the longitudinal cutting blade assembly in Embodiment 1 of this application;

[0022] Figure 2 This is a cross-sectional view of the end face of the longitudinal cutting blade assembly in Embodiment 1 of this application;

[0023] Figure 3 This is to illustrate the structural diagram of the end of the mounting rod in Embodiment 1 of this application;

[0024] Figure 4 This is a schematic diagram of the cutter assembly in Embodiment 2 of this application;

[0025] Figure 5 This is a cross-sectional view of the end face of the cutting assembly in Embodiment 2 of this application;

[0026] Figure 6 This is a schematic diagram illustrating the structure of the mounting rod and the arc-shaped tooth in Embodiment 2 of this application.

[0027] The components are: 1. First support base; 2. Second support base; 3. Tie rod; 4. First cutter roller; 5. Second cutter roller; 6. Mounting rod; 61. Mounting base; 62. Boss; 7. Combing cutter; 8. Drive unit; 9. Synchronization mechanism; 91. Synchronization belt; 92. First synchronous pulley; 93. Second synchronous pulley; 10. Waist-shaped groove; 11. Arc-shaped tooth; 100. Positioning table. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. Example 1

[0029] like Figures 1 to 3 As shown, this embodiment discloses a longitudinal slicing blade assembly, which includes a frame, a drive unit 8, and a mounting rod 6. A first cutter roller 4 and a second cutter roller 5 are rotatably mounted on the frame, and the blades of the first cutter roller 4 and the second cutter roller 5 are arranged in an alternating pattern. The drive unit 8 transmits and connects the first cutter roller 4 and the second cutter roller 5, and drives the first cutter roller 4 and the second cutter roller 5 to rotate synchronously. The mounting rod 6 is rotatably mounted on the frame, and two combing blades 7 are radially mounted on the mounting rod 6 by bolts. The blades of the combing blades 7 are alternating with the blades of the first cutter roller 4 and / or the second cutter roller 5. The mounting rod 6 can be rotated to switch to another combing blade 7, so that the blades of the other combing blade 7 are alternating with the blades of the first cutter roller 4 and / or the second cutter roller 5. In this embodiment, two mounting rods 6 are provided, corresponding to the first cutter roller 4 and the second cutter roller 5.

[0030] The frame includes two opposing first support bases 1 and second support bases 2, which are reinforced by two tie rods 3. A first cutter roller 4 and a second cutter roller 5 are arranged in parallel and rotatably mounted between the first support bases 1 and second support bases 2 via bearings, as shown in the attached figure. Figure 1 As shown, the drive unit 8 in this embodiment includes a first gear, a second gear, and a third gear. The first gear is connected to the end of the shaft of the first cutter roller 4. The second gear is similarly arranged. The third gear is coaxially mounted with any one of the first gear and the second gear. The third gear is mounted with the drive gear on the motor output shaft (conventional prior art, related structures in the figures are omitted here).

[0031] As attached Figure 2 and 3 As shown, in this embodiment, the mounting rod 6 is provided with limiting parts at both ends, and the first support seat 1 and the second support seat 2 are provided with limiting grooves 10 on their opposite surfaces. Here, waist-shaped grooves are used. The limiting parts are movably placed in the limiting grooves 10. Normally, the limiting parts include a boss 62 and a mounting seat 61. The boss 62 and the mounting seat 61 are fixedly connected. The end of the mounting rod 6 is fixedly welded to the side of the mounting seat 61 away from the boss 62. The boss 62 is placed in the adjacent limiting grooves 10. The mounting seat 61 is fixed to the corresponding support seat by bolts.

[0032] In a further embodiment, a positioning platform 100 is provided on the inner wall of the frame. When replacing the comb blade 7, the mounting rod 6 is moved down and rotated, and then moved up until the mounting seat 61 contacts the positioning platform 100. At this time, the fixed position of the mounting seat 61 is exactly the optimal working position of the replaced comb blade 7. The coordinates of the positioning platform 100 can be determined by experimental adjustment of the size design.

[0033] During operation, each mounting rod 6 is equipped with two comb blades 7. If one is damaged, loosen the fixing bolts of the mounting rod 6, slide the mounting rod 6 downwards, then rotate it 180°, and then move it upwards to the positioning table 100. Installation is then completed by tightening the bolts. The dimensional accuracy of the comb blade 7 itself is guaranteed by the processing equipment. Example 2

[0034] As attached Figures 4 to 6As shown, this embodiment discloses a longitudinal cutting blade assembly. The frame, blade roller, and drive unit 8 in this longitudinal cutting blade assembly are the same as those in the first embodiment. The main changes in this embodiment are to the combing blade 7 on the mounting rod 6 and the working method of the combing blade 7. In this embodiment, the teeth of the combing blade 7 are arc-shaped (here referred to as arc-shaped teeth 11). The height of the arc-shaped teeth 11 is 1mm greater than the groove depth of the blade roller. After the mounting rod 6 is installed, a gap of 0.05mm-0.1mm is reserved between the tooth tip and the cutting blade roller to avoid friction. The circumferential array of teeth is arranged on the mounting rod 6. In this embodiment, the combing blade 7 and the mounting rod 6 form a combing roller. In this embodiment, there are also two mounting rods 6, which are arranged corresponding to the first blade roller 4 or the second blade roller 5. The ends of the two mounting rods 6 away from the drive unit 8 are connected to the corresponding first blade roller 4 or the second blade roller 5 with a synchronization mechanism 9, which is used to make the mounting rods 6 rotate synchronously with the corresponding first blade roller 4 or the second blade roller 5.

[0035] As attached Figure 4 As shown, in this embodiment, the synchronization mechanism 9 includes a first synchronization wheel 92 and a second synchronization wheel 93. The second synchronization wheel 93 is fixed to the end of the mounting rod 6, and the first synchronization wheel 92 is fixed to the end shafts of the first cutter roller 4 and the second cutter roller 5. Each set of second synchronization wheels 93 and first synchronization wheels 92 is connected by a synchronization belt 91.

[0036] In the design, as shown in the attached Figure 5 As shown, the drive unit 8 drives the first cutter roller 4 and the second cutter roller 5 to rotate. With the intervention of the synchronization mechanism 9, each set of first synchronization wheel 92 and second synchronization wheel 93 rotates in the same direction. The movement direction of each set of cutter rollers is opposite to that of the corresponding mounting rod 6. At this time, the arc-shaped teeth 11 can continuously perform the switching tobacco strip removal work, greatly reducing the replacement frequency. Example 3

[0037] This embodiment discloses a shredder, which includes the longitudinal slicing blade group as in embodiment 1 or embodiment 2. The teeth of the comb blade 7 in the device are coated with a 0.2mm thick wear-resistant coating to further increase wear resistance and improve service life.

[0038] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used 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. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0039] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

Claims

1. A longitudinal cutting blade assembly, characterized in that, include A frame on which a first cutter roller (4) and a second cutter roller (5) are rotatably mounted, the cutter teeth of the first cutter roller (4) and the second cutter roller (5) being arranged in an alternating manner; The drive unit (8) transmits and connects the first cutter roller (4) and the second cutter roller (5), and drives the first cutter roller (4) and the second cutter roller (5) to rotate synchronously; Mounting rod (6), which is rotatably mounted on the frame, and a plurality of combing blades (7) are radially mounted on the mounting rod (6). The blade teeth of the combing blades (7) are intersected with the blade teeth of the first cutter roller (4) and / or the second cutter roller (5). The mounting rod (6) can rotate to switch to another combing blade (7), so that the blade teeth of the other combing blade (7) are intersected with the blade teeth of the first cutter roller (4) and / or the second cutter roller (5).

2. The longitudinal cutting blade assembly according to claim 1, characterized in that, The frame includes a first support base (1) and a second support base (2) arranged opposite to each other, and the first cutter roller (4) and the second cutter roller (5) are installed in parallel rotation between the first support base (1) and the second support base (2).

3. The longitudinal cutting blade assembly according to claim 1, characterized in that, The mounting rod (6) has limiting parts at both ends, and the frame has a limiting groove (10). The limiting parts are movably placed in the limiting groove (10) and fixed by fasteners.

4. The longitudinal cutting blade assembly according to claim 3, characterized in that, The limiting part includes a boss (62) and a mounting base (61), the boss (62) and the mounting base (61) are fixedly connected, the side of the mounting base (61) away from the boss (62) is fixed to the end of the mounting rod (6), and the boss (62) is correspondingly placed in the adjacent limiting groove (10).

5. The longitudinal cutting blade assembly according to claim 4, characterized in that, The inner wall of the frame is provided with a positioning platform (100), and the mounting base (61) moves to contact the positioning platform (100).

6. The longitudinal cutting blade assembly according to claim 1, characterized in that, The teeth of the combing knife (7) are arc-shaped. There are two mounting rods (6) and they are arranged corresponding to the first cutting roller (4) or the second cutting roller (5). The ends of the two mounting rods (6) away from the driving part (8) are connected to the corresponding first cutting roller (4) or second cutting roller (5) by a synchronization mechanism (9) for the mounting rods (6) to rotate synchronously with the corresponding first cutting roller (4) or second cutting roller (5).

7. The longitudinal cutting blade assembly according to claim 6, characterized in that, The synchronization mechanism (9) includes a first synchronization wheel (92) and a second synchronization wheel (93). The second synchronization wheel (93) is fixed to the end of the mounting rod (6), and the first synchronization wheel (92) is fixed to the end shaft of the first cutter roller (4). The second synchronization wheel (93) and the first synchronization wheel (92) on each side are connected by a synchronization belt (91).

8. The longitudinal cutting blade assembly according to claim 1, characterized in that, The teeth of the comb blade (7) are provided with a wear-resistant coating.

9. A shredder, characterized in that, Includes the longitudinal cutting blade assembly as described in any one of claims 1 to 8.

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