Cutter dismounting and mounting structure of underwater granulator

Abstract

The utility model discloses a cutter dismounting and mounting structure of an underwater granulator, which relates to the technical field of granulating machinery and comprises a rotating shaft, a mounting disc and a cutter stabilizing component. The cutter stabilizing assembly comprises a fixing base fixed to the mounting disc, a mounting block fixed to the fixing base, an insertion opening formed in the mounting block, a cutter plate moving in the insertion opening, a plurality of sets of guide strips fixedly arranged on the cutter plate, a guide groove formed in the insertion opening, a first connecting hole formed in the mounting block and a first fixing piece moving in the first connecting hole. The cutting board has the advantages that the guide strip is arranged on the cutting board, and the guide groove is formed in the inserting opening, so that when the cutting board is placed in the inserting opening, after the guide strip is stabilized by the guide groove to guide and move, the cutting board is directly and accurately aligned to the position of the first connecting hole, the extending distance of the cutting board in the inserting opening is determined, and the assembling efficiency during replacement is improved; and meanwhile, the fixed seat can rotate to adjust the position of the mounting block, so that the angle of the cutting board can be adjusted, and the functionality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pelletizing machinery, and more particularly to a cutter disassembly and assembly structure of an underwater pelletizer. Background Art

[0002] The underwater pelletizer is a specialized equipment for producing plastic pellets. It is mainly used at the end of the plastic extrusion production line. Its working principle is to cool and cut the molten extruded plastic strips (also known as melt streams) in a water tank through a series of precisely designed cutters under the medium of water to form uniform plastic pellets.

[0003] The underwater pelletizer includes a cutter part {as shown in Publication No. CN210999556U, a cutter device for an underwater pelletizer}, and the "cutter device for an underwater pelletizer" is provided with an angle adjustment function;

[0004] There are many raw materials and material ratios for producing plastic pellets. Therefore, when the properties of the raw materials change, especially when the key characteristics such as hardness, toughness or viscosity are different, the underwater pelletizer may need to be adjusted accordingly to ensure the cutting effect and efficiency:

[0005] For example, hardness changes: If the raw material becomes harder, the original cutter may not be able to cut effectively, resulting in uneven pelletizing or accelerated cutter wear. In this case, it is necessary to replace the cutter with a harder one.

[0006] For example, changes in toughness: increased toughness means that the material is more likely to deform rather than break when being cut, which requires the cutter to have better cutting ability and possibly faster cutting speed to reduce material deformation. It is necessary to replace the cutter with one that is more suitable for cutting high-toughness materials; etc.

[0007] In the above situation, it is necessary to replace the cutter, etc., and the existing methods have been proposed as shown in {Publication (Announcement) No.: CN206510260U, an underwater pelletizer head} and {Authorization (Announcement) No.: CN113427663B}; when installing the "blade", they are all directly inserted into the position of the stable port and then fixed. However, since the position needs to be accurately adjusted for connection and fixation, when only the direct insertion structure is used, there is still a disadvantage of lacking rapid position confirmation. Utility Model Content

[0008] The purpose of the utility model is to solve the above technical problems and provide a cutter disassembly and assembly structure of an underwater pelletizer.

[0009] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0010] The utility model proposes a cutter disassembly and assembly structure of an underwater pelletizer, comprising a rotating shaft, a mounting plate fixed to one end of the rotating shaft, and a plurality of knife stabilizing components fixed to the periphery of the mounting plate;

[0011] The knife stabilizing assembly includes a base fixed to the mounting plate, a mounting block fixed to the base, a socket provided on the mounting block, a knife plate movable in the socket, a plurality of guide strips fixed to the knife plate, a guide groove provided in the socket, a first connecting hole provided on the mounting block, and a first fixing member movable in the first connecting hole;

[0012] The guide bar guides the movement in the guide groove to stabilize the movement of the blade in the socket. The first connecting hole runs through both sides of the blade. The mounting block is fixedly connected to the blade through the first fixing member. The fixing seat is used to adjust the rotation of the mounting block to change the angle of the blade.

[0013] As a preferred technical solution of the present invention, the guide bars are provided in two groups, the guide grooves are provided in two groups, and the guide bars of the two groups correspond to each other and move in coordination with each other.

[0014] As a preferred technical solution of the present invention, a wear-resistant soft cushion layer is fixedly provided in the guide groove, and the outer side of the wear-resistant soft cushion layer is in contact with the guide strip.

[0015] As a preferred technical solution of the present invention, the first fixing member is a first screw rod, and the outside of the first screw rod is threadedly connected to the first connecting hole.

[0016] As a preferred technical solution of the present invention, the fixing base includes a fixing ring with a ring end fixed to the mounting plate, a rotating block provided in the fixing ring, a rotating member fixed to the periphery of the rotating block, a second connecting hole passing through the inside and outside of the fixing ring, two or more groups of adjusting holes annularly provided outside the rotating block, and a second fixing member movable in the second connecting hole;

[0017] The outside of the rotating block is fixed to the mounting block, the outside of the rotating member is fixedly connected to the rotating block, the fixed ring is rotatably connected to the rotating block through the rotating member, the second fixing member moves in the adjusting hole and the second connecting hole, and the fixed ring is fixed to the rotating block when the second fixing member moves simultaneously on any group of the adjusting hole and the second connecting hole.

[0018] As a preferred technical solution of the present invention, the second fixing member is a second screw rod, and the outside of the second screw rod is threadedly connected to the second connecting hole.

[0019] The beneficial effects of the utility model are as follows:

[0020] By providing a guide strip 35 on the blade plate 34 and a guide groove 36 in the socket 33, when the blade plate 34 is inserted into the socket 33, the guide strip 35 can be guided by the guide groove 36 to stabilize the movement, thereby directly and accurately aligning the position of the first connecting hole 37 and determining the distance that the blade plate 34 extends from the socket 33, thereby improving the assembly efficiency during replacement.

[0021] At the same time, the fixing base 31 can be rotated to adjust the position of the mounting block 32, thereby adjusting the angle of the blade 34 to improve functionality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of the utility model;

[0023] Figure 2 This is a structural diagram of the knife stabilizing assembly of the utility model;

[0024] Figure 3 It is a partial cross-sectional structural diagram of the knife stabilizing assembly of the utility model.

[0025] Figure markings: rotating shaft-1, mounting plate-2, knife stabilizing assembly-3, fixed seat-31, mounting block-32, socket-33, knife plate-34, guide bar-35, guide groove-36, first connecting hole-37, first fixing member-38, fixing ring-311, rotating block-312, rotating member-313, second connecting hole-314, adjusting hole-315, second fixing member-316. DETAILED DESCRIPTION

[0026] like Figures 1-3 As shown, the utility model proposes: a cutter disassembly and assembly structure of an underwater pelletizer, comprising a rotating shaft 1, a mounting plate 2 fixed to one end of the rotating shaft 1, and a plurality of knife stabilizing components 3 fixed to the periphery of the mounting plate 2 (such as Figure 1 As shown, the right end of the rotating shaft 1 is connected to the output end of the rotating driver, which can be a servo motor, etc. The left end of the rotating shaft 1 is fixed to the right end of the mounting plate 2. The knife stabilizing assembly 3 is set on the outer ring position of the mounting plate 2, and multiple groups of knife stabilizing assemblies 3 are evenly arranged in a ring);

[0027] In order to realize the implementation and use of the above-mentioned knife stabilizing assembly 3, it is proposed that Figure 2 、 3As shown, the specific structure and composition of the knife stabilizing assembly 3 can be as follows: the knife stabilizing assembly 3 includes a fixing base 31 fixed to the mounting plate 2, a mounting block 32 fixed to the fixing base 31, a socket 33 provided on the mounting block 32, a knife plate 34 movable in the socket 33, a plurality of guide strips 35 fixed to the knife plate 34, a guide groove 36 provided in the socket 33, a first connecting hole 37 provided on the mounting block 32, and a first fixing member 38 movable in the first connecting hole 37, wherein the first connecting hole 37 passes through both ends of the knife plate 34;

[0028] According to the above, if Figure 2 、 3 As shown, a columnar mounting block 32 is fixedly provided at the top of the fixing base 31, and a downward strip-shaped socket 33 is provided in the center of the top of the mounting block 32. A blade plate 34 is placed at the position of the socket 33 and clamped relative to it. When the blade plate 34 is downward, the first connecting hole 37 of the blade plate 34 is aligned with the first connecting hole 37 of the mounting block 32.

[0029] The guide bar 35 guides and moves within the guide groove 36 to stabilize the movement of the blade plate 34 within the socket 33, and the mounting block 32 is fixedly connected to the blade plate 34 via the first fixing member 38 (according to the above, by providing the guide bar 35 at the plate end of the blade plate 34, providing the guide groove 36 in the socket 33, the top of the guide groove 36 is exposed from the top of the mounting block 32, and the ends of the guide bar 35 are facing up and down. Therefore, when the blade plate 34 is downwardly placed into the socket 33, the guide groove 36 can stabilize the guide bar 35 and guide the movement of the guide bar 35. Then, the position of the first connecting hole 37 is directly and accurately aligned, and the distance that the blade plate 34 protrudes from the socket 33 is determined. Then, the first fixing member 38 is used to connect and stabilize it, which can improve the efficiency of assembly during replacement).

[0030] The fixing seat 31 is used to adjust the rotation of the mounting block 32 to change the angle of the blade 34. The rotation angle of the mounting block 32 can be adjusted, thereby adjusting the angle of the blade 34 to change the angle of the cutting material.

[0031] Furthermore, there are two groups of guide bars 35 and two groups of guide grooves 36, and the two groups of guide bars 35 are in one-to-one correspondence and move in coordination (e.g. Figure 2 As shown, two groups of guide bars 35 are symmetrically provided at both ends of the blade 34, and each group of guide bars 35 is provided with two. The number and position of the guide grooves 36 correspond to the number of guide bars 35 provided, and four guide grooves 36 are provided on the socket 33 to improve the guiding stability);

[0032] Furthermore, a wear-resistant cushion layer (the wear-resistant cushion layer can be made of rubber or other materials) is fixedly provided in the guide groove 36, and the outer side of the wear-resistant cushion layer is in contact with the guide strip 35 (such as Figure 2As shown, a wear-resistant cushion layer is added to the inner wall of the guide groove 36 to serve as a fitting and pressing layer when the guide strip 35 is placed, which can improve the stability and wear resistance after assembly and achieve good use effect);

[0033] Furthermore, the first fixing member 38 is a first screw rod, and the first screw rod is threadedly connected to the first connecting hole 37 (such as Figure 2 As shown, the first connecting hole 37 penetrates the blade plate 34 on the right end of the mounting block 32 and passes through both sides, and then penetrates the interior of the mounting block 32 on the left end of the blade plate 34. The first connecting hole 37 is threadedly connected with the first screw rod to fix the blade plate 34. Two sets of first connecting holes 37 and first screw rods are provided to improve the stability of the installation);

[0034] like Figure 2 As shown, the rotation of the mounting block 32 is adjusted by the mounting base 31, which is further described as follows:

[0035] The mounting base 31 includes a fixed ring 311 with one end fixed to the mounting plate 2, a rotating block 312 disposed within the fixed ring 311, a rotating member 313 fixed to the periphery of the rotating block 312, a second connecting hole 314 extending through the inside and outside of the fixed ring 311, two or more sets of adjusting holes 315 annularly arranged outside the rotating block 312, and a second fixing member 316 movable within the second connecting hole 314.

[0036] According to the above, if Figure 2 Shown: Combined Figure 1 The bottom end of the fixed ring 311 is fixed to the periphery of the mounting plate 2, and a column-shaped rotating block 312 is inserted into the inner side of the fixed ring 311. During the insertion, a rotating member 313 such as a bearing is used to surround the rotating block 312, so as to achieve a stable connection and provide a rotating effect;

[0037] The outer portion of the rotating block 312 is fixed to the mounting block 32, and the outer portion of the rotating member 313 is fixedly connected to the rotating block 312. The fixed ring 311 is rotatably connected to the rotating block 312 via the rotating member 313. The second fixing member 316 moves within the adjustment hole 315 and the second connecting hole 314. When the second fixing member 316 moves simultaneously on any set of the adjustment hole 315 and the second connecting hole 314, the fixed ring 311 and the rotating block 312 are fixed (according to the above, when the mounting block 32 rotates, the rotating block 312 can be driven to rotate and adjust its position, so that different adjustment holes 315 can be adjusted in an annular manner to align with the second connecting hole 314. Then, by simultaneously connecting the second fixing member 316, the position of the mounting block 32 can be stabilized and the angle of the blade 34 can be adjusted);

[0038] The second fixing member 316 is a second screw rod, and the second screw rod is threadedly connected to the second connecting hole 314 (eg Figure 2As shown, after the second screw rod is threaded into the second connecting hole 314, it is inserted and pressed against the adjustment hole 315 to stabilize the position of the rotating block 312).

[0039] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims be included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0040] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A cutter assembly and disassembly structure for an underwater pelletizer, comprising a rotating shaft (1), a mounting plate (2) fixed to one end of the rotating shaft (1), and a plurality of knife stabilizing components (3) fixed to the periphery of the mounting plate (2); It is characterized in that The knife stabilizing assembly (3) includes a fixing seat (31) fixed to the mounting plate (2), a mounting block (32) fixed to the fixing seat (31), a socket (33) provided on the mounting block (32), a knife plate (34) movable in the socket (33), a plurality of guide strips (35) fixed on the knife plate (34), a guide groove (36) provided in the socket (33), a first connecting hole (37) provided on the mounting block (32), and a first fixing member (38) movable in the first connecting hole (37); The guide bar (35) guides the movement in the guide groove (36) to stabilize the movement of the knife plate (34) in the socket (33), the first connecting hole (37) passes through both sides of the knife plate (34), the mounting block (32) is fixedly connected to the knife plate (34) through the first fixing member (38), and the fixing seat (31) is used to adjust the rotation of the mounting block (32) to change the angle of the knife plate (34).

2. The cutter assembly and disassembly structure of an underwater pelletizer according to claim 1, characterized in that: There are two groups of guide bars (35), and there are two groups of guide grooves (36), and the guide bars (35) of the two groups correspond to each other and move in coordination.

3. The cutter assembly and disassembly structure of the underwater pelletizer according to claim 1, characterized in that: A wear-resistant cushion layer is fixedly provided in the guide groove (36), and the outer side of the wear-resistant cushion layer is fitted with the guide strip (35).

4. The cutter assembly and disassembly structure of an underwater pelletizer according to claim 1, characterized in that: The first fixing member (38) is a first screw rod, and the outside of the first screw rod is threadedly connected to the first connecting hole (37).

5. The cutter assembly and disassembly structure of an underwater pelletizer according to claim 1, characterized in that: The fixing seat (31) includes a fixing ring (311) whose ring end is fixed to the mounting plate (2), a rotating block (312) provided in the fixing ring (311), a rotating member (313) fixed to the periphery of the rotating block (312), a second connecting hole (314) passing through the inside and outside of the fixing ring (311), two or more groups of adjusting holes (315) arranged in an annular shape around the outside of the rotating block (312), and a second fixing member (316) movable in the second connecting hole (314); The outside of the rotating block (312) is fixed to the mounting block (32), the outside of the rotating member (313) is fixedly connected to the rotating block (312), the fixed ring (311) is rotatably connected to the rotating block (312) through the rotating member (313), the second fixing member (316) moves in the adjustment hole (315) and the second connecting hole (314), and when the second fixing member (316) moves simultaneously on any set of the adjustment hole (315) and the second connecting hole (314), the fixed ring (311) and the rotating block (312) are fixed.

6. The cutter assembly and disassembly structure of the underwater pelletizer according to claim 5, characterized in that: The second fixing member (316) is a second screw rod, and the outside of the second screw rod is threadedly connected to the second connection hole (314).

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