Cutter structure of underwater granulator

Abstract

The utility model discloses a cutter structure of an underwater granulator, which is provided with a rotating shaft and comprises a plurality of cutter blades which rotate around the circumference of the rotating shaft; the connecting separation blades are in one-to-one correspondence with the cutting blades; the blocking piece, the connecting blocking piece and the cutting blade are connected in sequence, and a plurality of centrifugal chambers are formed by the connecting blocking piece, the cutting blade and the blocking piece; a liquid inlet chamber is arranged in the middle of the blocking piece and communicated with the centrifugal chamber, the blocking piece is provided with a plurality of first liquid inlet holes, and the first liquid inlet holes are communicated with the liquid inlet chamber. When the cutter structure rotates, the cutter blade can cut off extruded plastic, the extruded plastic is in a particle shape, plastic particles enter the centrifugal chamber and are thrown out of the centrifugal chamber, the thrown-out particles enter a pelletizing chamber of the underwater pelletizing machine, and the particles entering the pelletizing chamber cannot get close to the cutter blade again due to blocking of the blocking piece. Therefore, the plastic particles can be effectively prevented from being cut for the second time, and the qualified rate of products is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of underwater pelletizer technology, and in particular to the cutting structure of an underwater pelletizer. Background Technology

[0002] After being pelletized, the particles move within the pelletizing chamber of the underwater pelletizer. They are then moved out of the pelletizing chamber by the water flow. During their movement within the pelletizing chamber, the particles may accidentally come into contact with the cutting blade, causing the plastic pellets to be cut a second time, which affects the product qualification rate. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a cutting structure for an underwater pelletizer, so as to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0004] The solution to the technical problem of this utility model is:

[0005] An underwater pelletizer cutting blade structure, equipped with a rotating shaft, includes:

[0006] Multiple cutting blades, the multiple cutting blades rotating circumferentially about the rotation axis;

[0007] Multiple connecting baffles, each corresponding to one of the cutting blades;

[0008] A barrier, a connecting baffle, and a cutting blade are connected in sequence, forming a plurality of centrifuge chambers; a liquid inlet chamber is provided in the middle of the barrier, which is connected to the centrifuge chambers, and the barrier is provided with a plurality of first liquid inlet holes, which are connected to the liquid inlet chambers.

[0009] As a further improvement to the above technical solution, the connecting baffle is an arc-shaped component.

[0010] As a further improvement to the above technical solution, the periphery of the liquid inlet hole is provided with a plurality of blocking strips; adjacent blocking strips form a liquid inlet gap, and the plurality of blocking strips surround to form a liquid inlet extension channel; the two ends of the blocking strips are respectively designated as a first end and a second end, and the first end is fixedly connected to the blocking member.

[0011] As a further improvement to the above technical solution, the second end extends into the inside of the liquid inlet extension channel.

[0012] As a further improvement to the above technical solution, the blocking strip is provided with multiple second liquid inlet holes.

[0013] As a further improvement to the above technical solution, the second liquid inlet hole is an elongated hole structure.

[0014] As a further improvement to the above technical solution, in the rotational direction of the cutter structure, the second end is located behind the first end.

[0015] As a further improvement to the above technical solution, the first liquid inlet hole is an elongated hole structure.

[0016] As a further improvement to the above technical solution, the cutting blade and the connecting baffle are detachably connected.

[0017] As a further improvement to the above technical solution, the cutting blade and the connecting baffle are detachably connected by screws.

[0018] The beneficial effects of this utility model are: when the cutting structure rotates, the cutting blade will cut the extruded plastic, making the extruded plastic into particles. The plastic particles enter the centrifuge chamber and are thrown out from the centrifuge chamber. The thrown-out particles enter the pelletizing chamber of the underwater pelletizer. Due to the obstruction of the blocking device, the particles entering the pelletizing chamber will not approach the cutting blade again, thereby effectively avoiding the plastic particles being cut a second time, so as to ensure the product qualification rate.

[0019] This invention relates to the field of underwater pelletizer technology. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly explained below. Obviously, the described drawings are only a part of the embodiments of this utility model, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0022] Figure 2 yes Figure 1 A magnified view of part A in the middle;

[0023] Figure 3 This is a cross-sectional structural diagram of an embodiment of the present utility model.

[0024] In the diagram, 001 is the centrifuge chamber; 002 is the liquid inlet chamber; 003 is the liquid inlet extension channel; 100 is the cutting blade; 200 is the connecting baffle; 300 is the barrier; 310 is the first liquid inlet; 320 is the blocking strip; 321 is the liquid inlet gap; and 322 is the second liquid inlet. Detailed Implementation

[0025] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages mentioned herein do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this invention can be combined interactively without contradicting each other.

[0026] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0028] After being pelletized, the particles move within the pelletizing chamber of the underwater pelletizer. They are then moved out of the pelletizing chamber by the water flow. During their movement within the pelletizing chamber, the particles may accidentally come into contact with the cutting blade, causing the plastic pellets to be cut a second time, which affects the product qualification rate.

[0029] This solution was designed to address the aforementioned technical problems.

[0030] Reference Figures 1 to 3 The underwater pelletizer has a cutting structure with a rotating shaft. The cutting structure includes a cutting blade 100, a connecting baffle 200, and a blocking baffle 300.

[0031] The number of cutting blades 100 and connecting baffles 200 is set to multiple. The multiple cutting blades 100 and multiple connecting baffles 200 are arranged equidistantly around the circumference of the rotation axis. The cutting blades 100 and the connecting baffles 200 correspond one-to-one and are fixedly connected.

[0032] Specifically, in this embodiment, the cutting blade 100 and the connecting baffle 200 are detachably fixed. More specifically, the cutting blade 100 and the connecting baffle 200 are detachably fixed by screws. In other embodiments, other conventional detachable fixing structures can also be used. Those skilled in the art can select the detachable structure of the cutting blade 100 and the connecting baffle 200 according to actual needs.

[0033] Specifically, the connecting baffle 200 has an arc-shaped sheet structure, and the arc-shaped opening of the connecting baffle 200 faces the rear of the cutting structure in the direction of rotation. In other embodiments, the arc-shaped opening of the connecting baffle 200 may also face the front of the cutting structure in the direction of rotation. Those skilled in the art can select the setting method of the arc-shaped opening of the connecting baffle 200 according to actual needs.

[0034] Specifically, multiple connecting baffles 200 are fixedly connected to the barrier baffles 300. Multiple cutting blades 100, multiple connecting baffles 200, and the barrier baffles 300 form multiple centrifuge chambers 001, which are arranged circumferentially around the rotation axis of the cutting blade structure. A liquid inlet chamber 002 is provided in the center of the barrier baffles 300, and all the centrifuge chambers 001 are connected to the liquid inlet chamber 002.

[0035] Specifically, to allow water in the pelletizing chamber of the underwater pelletizer to flow smoothly into the centrifuge chamber 001, the baffle 300 is provided with multiple first inlet holes 310. These first inlet holes 310 are evenly distributed in the middle of the baffle 300 and are all connected to the inlet chamber 002. Water in the pelletizing chamber of the underwater pelletizer can flow into the inlet chamber 002 through the first inlet holes 310. Specifically, in this embodiment, the first inlet hole 310 is designed as an elongated hole. In other embodiments, the first inlet hole 310 can also be designed as a circular hole or a polygonal hole. Those skilled in the art can select the specific shape of the first inlet hole 310 according to actual needs.

[0036] Specifically, in this embodiment, a plurality of blocking strips 320 protrude from the periphery of the liquid inlet hole, and the plurality of blocking strips 320 surround to form a liquid inlet extension channel 003. A liquid inlet gap 321 is provided between two adjacent blocking strips 320. The width of the liquid inlet gap 321 needs to be smaller than the diameter of the cut particles in order to block the particles and prevent them from entering the liquid inlet extension channel 003.

[0037] Specifically, the two ends of the blocking strip 320 are respectively designated as a second end and a first end, with the first end fixedly connected to the blocking member 300. Specifically, in this embodiment, the second end is located behind the first end (in the rotation direction of the cutter structure), thereby causing the blocking strip 320 to be inclined. During the rotation of the cutter structure, due to the resistance of the water flow, the particles blocked by the blocking strip 320 will move along the direction from the first end to the second end, which can prevent the accumulation of particles from completely blocking the liquid inlet gap 321. At that time, the water in the pelletizing chamber can flow smoothly from the liquid inlet gap 321 and into the liquid inlet chamber 002 through the liquid inlet extension channel 003, thereby ensuring the water intake of the liquid inlet chamber 002.

[0038] Specifically, in this embodiment, the second end extends into the liquid inlet extension channel 003, so that the end of the liquid inlet extension channel 003 away from the barrier 300 has a structure with a gradually decreasing inner diameter, thereby preventing plastic particles from entering the liquid inlet extension channel 003.

[0039] Specifically, in this embodiment, the blocking strip 320 is provided with a second liquid inlet hole 322. The number of second liquid inlet holes 322 is set to multiple. The multiple second liquid inlet holes 322 are arranged along the extension direction of the blocking strip 320. By providing the second liquid inlet holes 322, the liquid can more easily enter the liquid inlet extension channel 003, and pass through the liquid inlet extension channel 003 and the liquid inlet chamber 002 of the first liquid inlet hole 310 in sequence, and finally flow out from the centrifuge chamber 001 back to the pelletizing chamber, so that the liquid can be replenished in time.

[0040] Specifically, in this embodiment, the second liquid inlet hole 322 is set as an elongated hole. In other embodiments, the second liquid inlet hole 322 can also be set as a circular hole structure or a polygonal hole structure. Those skilled in the art can select the specific shape of the second liquid inlet hole 322 according to actual needs.

[0041] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. The cutting blade structure of an underwater pelletizer, characterized in that: The cutter structure includes a rotating shaft and comprises: Multiple cutting blades, the multiple cutting blades rotating circumferentially about the rotation axis; Multiple connecting baffles, each corresponding to one of the cutting blades; A barrier, a connecting baffle, and a cutting blade are connected in sequence, forming a plurality of centrifuge chambers; a liquid inlet chamber is provided in the middle of the barrier, which is connected to the centrifuge chambers, and the barrier is provided with a plurality of first liquid inlet holes, which are connected to the liquid inlet chambers.

2. The underwater pelletizer cutter structure according to claim 1, characterized in that: The connecting baffle is an arc-shaped component.

3. The underwater pelletizer cutter structure according to claim 1, characterized in that: The periphery of the liquid inlet hole has multiple blocking strips protruding; adjacent blocking strips form liquid inlet gaps, and the multiple blocking strips surround to form a liquid inlet extension channel; the two ends of the blocking strips are respectively designated as a first end and a second end, and the first end is fixedly connected to the blocking member.

4. The underwater pelletizer cutter structure according to claim 3, characterized in that: The second end extends into the inside of the liquid inlet extension channel.

5. The underwater pelletizer cutter structure according to claim 3, characterized in that: The blocking strip is provided with multiple second liquid inlet holes.

6. The underwater pelletizer cutter structure according to claim 5, characterized in that: The second liquid inlet hole has an elongated hole structure.

7. The underwater pelletizer cutter structure according to claim 3, characterized in that: In the rotational direction of the cutter structure, the second end is located behind the first end.

8. The underwater pelletizer cutter structure according to claim 1, characterized in that: The first liquid inlet hole has an elongated hole structure.

9. The underwater pelletizer cutter structure according to claim 1, characterized in that: The cutting blade is detachably connected to the connecting baffle.

10. The underwater pelletizer cutter structure according to claim 9, characterized in that: The cutting blade and the connecting baffle are detachably connected by screws.

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