Granulating cutter disc provided with various combined granulating cutters

Abstract

The utility model discloses a pelletizing cutterhead provided with multiple combination pelletizing cutters, which comprises a cutterhead with a circular section, a plurality of first mounting holes and second mounting holes which are arranged in a staggered manner are arranged on the cutterhead close to the outer edge, the first mounting holes are circumferentially and uniformly distributed on the cutterhead at equal intervals, and the second mounting holes are arranged on the cutterhead close to the outer edge of the cutterhead at equal intervals. The plurality of second mounting holes are circumferentially and uniformly distributed on the cutter head at equal intervals, and the number of the first mounting holes is not equal to that of the second mounting holes. According to the utility model, the first mounting hole and the second mounting hole are used for mounting two different quantities of pelletizing cutter combinations, so that the pelletizing cutter can meet the production requirements under two capacities at the same time, and the quantity of cutter heads required by different capacities is reduced, so that the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of pelletizers, specifically to a pelletizing disc with multiple combined pelletizing blades. Background Technology

[0002] The pelletizing disc is a crucial component of large-scale extrusion pelletizing units. It houses and drives the pelletizing blades, performing axial forward and backward movements and rotating along the axis to cut pellets. The pelletizing motor drives the disc shaft, which in turn rotates the pelletizing disc itself. Since the pelletizer's rotational speed is constant, to ensure consistent pellet size when producing different capacities, the number of pelletizing blades installed must be adjusted. Therefore, existing pelletizing discs that can only accommodate one type of blade combination cannot meet production requirements, necessitating the use of two or more different specifications of pelletizing discs, thus increasing production costs. Utility Model Content

[0003] The purpose of this invention is to provide a pelletizing disc with multiple combinations of pelletizing blades. This pelletizing disc is used to install two different numbers of pelletizing blades through a first mounting hole and a second mounting hole, so that this invention can simultaneously meet the production requirements under two different production capacities, reduce the number of discs required for different production capacities, and thus reduce production costs.

[0004] The technical solution adopted by this utility model to solve the above problems is:

[0005] A pelletizing disc with multiple combined pelletizing blades includes a disc with a circular cross-section. The disc has a plurality of first mounting holes and second mounting holes arranged in an alternating manner near its outer edge. The plurality of first mounting holes are evenly distributed on the disc at equal intervals around the circumference, and the plurality of second mounting holes are also evenly distributed on the disc at equal intervals around the circumference. The number of first mounting holes and the number of second mounting holes are not equal.

[0006] In the above technical solution, preferably, the first mounting hole and the second mounting hole have the same specifications, the distance between adjacent first mounting holes is twice the distance between adjacent second mounting holes, and some first mounting holes and corresponding second mounting holes overlap to form a common mounting hole.

[0007] In the above technical solution, preferably, the cutter head shaft is detachably fixed at the middle position of the cutter head by bolts, and the axis of the cutter head and the axis of the cutter head shaft coincide.

[0008] In the above technical solution, preferably, the cutter head is provided with a plurality of cylindrical weight-reducing holes at equal intervals around its circumference.

[0009] In the above technical solution, preferably, the rear ends of the first mounting hole and the second mounting hole are set as countersunk holes in a stepped shape.

[0010] In the above technical solution, preferably, the cutter head is a frustum shape with a diameter that gradually decreases towards the rear.

[0011] Compared with the prior art, this utility model has the following advantages and effects:

[0012] This invention uses several first mounting holes for mounting a first type of pelletizing blade assembly and several second mounting holes for mounting a second type of pelletizing blade assembly. Since the number of first mounting holes and second mounting holes is not equal, the corresponding number of first mounting holes and second mounting holes can be made according to actual production needs. This allows the invention to simultaneously meet the production requirements of two different production capacities of the pelletizer, thereby reducing the number of blades required for different production capacities and reducing the production cost of the pelletizer. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a multi-combination pelletizing disc according to an embodiment of the present invention.

[0014] Figure 2 This is a schematic diagram of the installation structure of the first type of pelletizing blade assembly according to an embodiment of this utility model.

[0015] Figure 3 This is a schematic diagram of the installation structure of the second type of pelletizing blade assembly according to an embodiment of this utility model.

[0016] Figure 4 yes Figure 1 A schematic diagram of the back structure.

[0017] The components include a cutter head 1, a first mounting hole 11, a second mounting hole 12, a common mounting hole 13, a weight reduction hole 14, a cutter head shaft 2, and a pelletizing blade 3. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0019] See Figures 1-4 This embodiment describes a pelletizing disc with multiple combined pelletizing blades, including a disc 1 with a circular cross-section. The disc 1 has a plurality of first mounting holes 11 and second mounting holes 12 arranged in an alternating manner near its outer edge. The plurality of first mounting holes 11 are evenly distributed on the disc 1 at equal intervals around the circumference, and the plurality of second mounting holes 12 are evenly distributed on the disc 1 at equal intervals around the circumference. The number of first mounting holes 11 and the number of second mounting holes 12 are not equal.

[0020] This utility model uses several first mounting holes 11 for mounting a first type of pelletizing blade assembly (such as...). Figure 2As shown in the diagram), a second type of pelletizing blade assembly (such as...) is mounted via several second mounting holes 12. Figure 3 As shown in the figure, since the number of the first mounting hole 11 and the second mounting hole 12 are not equal, the corresponding number of the first mounting hole 11 and the second mounting hole 12 can be made according to the actual production needs, so that the present invention can simultaneously meet the production requirements of the two capacities of the granulator, thereby reducing the number of cutter discs 1 required for different capacities and reducing the production cost of the granulator.

[0021] See Figures 1-3 The first mounting hole 11 and the second mounting hole 12 have the same specifications. The distance between adjacent first mounting holes 11 is twice the distance between adjacent second mounting holes 12. Some first mounting holes 11 and corresponding second mounting holes 12 overlap to form a common mounting hole 13.

[0022] When production capacity changes and switching between two pelletizing blade combinations is required, the pelletizing blades 3 mounted on the common mounting hole 13 do not need to be disassembled. The remaining pelletizing blades 3 can be removed to reduce or increase their number and then installed into the first mounting hole 11 or second mounting hole 12 corresponding to the desired pelletizing blade combination. This reduces the workload each time the pelletizing blade combination is switched, improving the ease of use of this invention. The common mounting hole 13 reduces the total number of first mounting holes 11 and second mounting holes 12 simultaneously on the cutter head 1, thereby reducing the possibility of reduced strength of the cutter head 1 due to excessive openings. It also reduces the amount of machining required when producing the cutter head 1, facilitating mass production of this invention.

[0023] See Figure 1 , Figure 4 The cutter head 1 is detachably fixed to the middle position by bolts with a cutter head shaft 2, and the axis of the cutter head 1 and the axis of the cutter head shaft 2 coincide.

[0024] The cutter head shaft 2 is used to fix it to the pelletizing motor. When neither the first mounting hole 11 nor the second mounting hole 12 on the cutter head 1 can meet the requirements of the pelletizing knife combination corresponding to the installed capacity, the cutter head 1 can be removed from the cutter head shaft 2 and another cutter head 1 that can meet the capacity can be installed on the cutter head shaft 2. This reduces the cost of using this utility model by replacing the cutter head 1 instead of the cutter head shaft 2.

[0025] See Figure 1 , Figure 4 The cutter disc 1 has several cylindrical weight-reducing holes 14 spaced evenly around its circumference, which reduces the workload when the pelletizing motor drives the cutter disc 1 and the pelletizing blade 3 to rotate, thereby reducing the consumption of electrical energy and the production cost of the pelletizer.

[0026] The weight-reducing holes 14 are all evenly distributed in a circle, which allows the weight of the cutter head 1 to change uniformly in a circular direction with its rotation axis as the center. This ensures that the center of gravity of the cutter head 1 is located on its rotation axis, thereby ensuring the stability of the cutter head 1 during rotation and reducing the risk of shaking of the cutter head 1 at high speed due to the offset of the center of gravity. At the same time, compared with other shapes of weight-reducing holes 14, the cylindrical weight-reducing holes 14 can distribute the pressure more evenly to various parts of the weight-reducing holes 14 when under pressure, thereby improving the deformation resistance of the weight-reducing holes 14. While reducing weight through the weight-reducing holes, the overall strength of the cutter head 1 is maintained.

[0027] See Figure 4 The rear ends of the first mounting hole 11 and the second mounting hole 12 are configured as stepped countersunk holes.

[0028] When the pelletizer 3 is installed onto the cutter disc 1 using bolts, the bolts are screwed in from the rear end of the first mounting hole 11 or the second mounting hole 12, and then into the threaded hole of the pelletizer 3. This ensures that the head of the bolt is located on the rear side of the cutter disc 1, preventing the bolt head from obstructing the cutting operation of the pelletizer 3 if it were located on the front side. The first mounting hole 11 and the second mounting hole 12 are countersunk holes, allowing the bolt head to enter the countersunk hole. This prevents the bolt head from being exposed on the outside of the cutter disc 1 and subjected to the resistance of the cooling water when the pelletizer 3 moves with the cutter disc 1, thereby reducing the resistance of the cooling water and the risk of the bolt loosening due to the resistance of the cooling water, ensuring the stable operation of this invention. At the same time, the countersunk hole can cut away more volume compared to the ordinary cylindrical threaded hole, thereby further reducing the weight of the cutter disc 1.

[0029] See Figure 4 The cutter head 1 is a frustum-shaped cone with a diameter that gradually decreases towards the rear.

[0030] The frustum shape of the cutter head 1 increases the contact area between the cutter head 1 and the cutter head shaft 2, thereby improving the stability of the fixation between the cutter head 1 and the cutter head shaft 2. At the same time, it increases the strength of the cutter head 1 and improves its resistance to deformation, thereby increasing the service life of the cutter head 1 and reducing the production cost caused by replacing the damaged cutter head 1.

[0031] The above description in this specification is merely illustrative of the present invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not depart from the content of this specification or exceed the scope defined in the claims, all of which shall fall within the protection scope of this invention.

Claims

1. A pelletizing disc with multiple combined pelletizing blades, characterized in that: The tool includes a cutter head with a circular cross-section. Near the outer edge of the cutter head, there are a plurality of first mounting holes and second mounting holes arranged in an alternating manner. The plurality of first mounting holes are evenly distributed on the cutter head at equal intervals around the circumference, and the plurality of second mounting holes are evenly distributed on the cutter head at equal intervals around the circumference. The number of first mounting holes and the number of second mounting holes are not equal.

2. The pelletizing disc with multiple combined pelletizing blades as described in claim 1, characterized in that: The first and second mounting holes have the same specifications. The distance between adjacent first mounting holes is twice the distance between adjacent second mounting holes. Some first mounting holes and corresponding second mounting holes overlap to form a shared mounting hole.

3. The pelletizing disc with multiple combined pelletizing blades as described in claim 1, characterized in that: The cutter head shaft is detachably fixed at the middle position by bolts, and the axis of the cutter head and the axis of the cutter head shaft coincide.

4. The pelletizing disc with multiple combined pelletizing blades as described in claim 1, characterized in that: The cutter head has several cylindrical weight-reducing holes spaced at equal intervals around its circumference.

5. The pelletizing disc with multiple combined pelletizing blades as described in claim 1, characterized in that: The rear ends of the first and second mounting holes are configured as stepped countersunk holes.

6. The pelletizing disc with multiple combined pelletizing blades as described in claim 1, characterized in that: The cutter head is a frustum-shaped cone with a diameter that gradually decreases towards the rear.

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