Cutter structure of granulator

Abstract

The cutter structure comprises a cutter body, the cutter body is of a cylindrical structure, a plurality of cutter grooves extending in the axial direction are evenly distributed in the outer circumferential face of the cutter body in the circumferential direction, and cutting edges are arranged in the cutter grooves in a clamped mode. One end of the cutter body protrudes axially to form a convex shaft part, the other end of the cutter body is provided with a clamping groove communicated with the cutter groove, the convex shaft part is sleeved with a limiting end cover in a sliding mode in the axial direction, and the end, close to the limiting end cover, of the cutting edge is provided with a limiting protrusion while the other end of the cutting edge is provided with a clamping block; a limiting inserting groove communicated with the cutter groove is formed in the end face of the end, close to the limiting end cover, of the cutter body, the limiting protrusion is inserted into the limiting inserting groove in the axial direction, the clamping block is inserted into the clamping groove in the axial direction, the limiting end cover abuts against and limits the corresponding end of the cutting edge, and a connecting piece connected with the limiting end cover is arranged on the cutter body. The utility model has the following advantages and effects: the blade can be quickly replaced and fixed without disassembling a plurality of bolts.

Description

TECHNICAL FIELD

[0001] The utility model relates to the cutter field, more specifically, it relates to a cutter structure of granulator. BACKGROUND

[0002] In the plastic processing and forming process, in order to be convenient for operation, the required various auxiliary agents, fillers and a small amount of carrier resin are mixed and mixed first, are metered, mixed, fused, extruded and the like processing process by extrusion device and the like equipment and are made into strip shape, and then are cut into small particle state by a pelletizer. The cutter mechanism of the pelletizer is damaged inevitably after long time use, an existing cutter mechanism of pelletizer includes cutter body and blade, a plurality of cutter grooves for installing the blade are arranged on the cutter body, and the blade is fixed in the cutter groove by at least two bolts, when replacing the blade, the bolts need to be disassembled, the bolts are installed back after replacing the blade, especially when a plurality of blades need to be replaced, a large number of bolts need to be disassembled, which is relatively cumbersome and inconvenient to use. SUMMARY

[0003] In view of the defects in the prior art, the utility model aims at providing a cutter mechanism of pelletizer with convenient blade replacement.

[0004] To achieve the above object, the utility model provides the following technical scheme: a cutter structure of granulator, including cutter body, the cutter body is uniformly distributed with a plurality of cutter grooves extending along the axial direction on the outer circumferential surface, the cutter blade is clamped in the cutter groove, the cutter body is axially protruded with the convex shaft part at one end, and the other end is formed with the clamping groove connected with the cutter groove, the convex shaft part is axially slidably provided with the limit end cap, the cutter blade is provided with the limit protrusion at one end close to the limit end cap, and the other end is provided with the clamping block, the cutter body is provided with the limit insertion slot on the end face close to the limit end cap, the limit protrusion is inserted into the limit insertion slot along the axial direction, the clamping block is inserted into the clamping groove along the axial direction, the limit end cap is limited to the corresponding end of the cutter blade, and the cutter body is provided with the connecting piece connected with the limit end cap

[0005] The utility model is further provided as follows: the connecting piece includes a locking spring and a connecting rod, the convex shaft part end face is formed with the axial insertion hole extending along the axial direction, the connecting rod is axially slidably arranged in the axial insertion hole and connected with the limit end cap, the locking spring is sleeved on the connecting rod, and the locking spring provides the connecting rod with axial elastic force to make the limit end cap keep the trend of moving towards the cutter body.

[0006] The utility model is further provided as follows: the connecting rod inner end is provided with the clamping protrusion, the locking spring is sleeved on the connecting rod, the inner end is abutted with the clamping protrusion, the outer end is abutted with the baffle, and the baffle is fixed at the outer end port of the axial insertion hole.

[0007] The utility model further sets up: the outer end of connecting rod is equipped with screw hole, the connecting hole is formed on the limit end cover, and the bolt passes connecting hole screw thread connection screw hole.

[0008] The utility model further sets up: a plurality of limit sliding slots extending along the axial direction are arranged on the convex shaft part, the limit sliding slots are evenly arranged around the outer periphery of the convex shaft part, and a limit sliding block that slides in the limit sliding slot is arranged on the limit end cover.

[0009] The utility model further sets up: the limit end cover outside is also provided with a pincer block.

[0010] The utility model has the following effects by adopting the above technical scheme: the limit end cover is arranged to fix the cutting edge, when replacing, only needs to loosen the limit end cover, and the cutting edge can be replaced, without disassembling the bolt, and the cutting edge is more convenient and faster to disassemble and assemble. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the perspective drawing of the cutter body of the utility model;

[0012] Figure 2 It is the perspective drawing of the cutter body of the utility model without the limit end cover;

[0013] Figure 3 It is the sectional view of the cutter body of the utility model;

[0014] Figure 4 It is the enlarged view of A part;

[0015] Figure 5 It is the perspective drawing of the limit end cover in the utility model;

[0016] Figure 6 It is the perspective drawing of the cutting edge in the utility model.

[0017] In the drawing: 1, cutter body; 12, cutter groove; 13, cutting edge; 131, limit protrusion; 132, clamping block; 14, convex shaft part; 15, clamping groove; 3, limit end cover; 4, locking spring; 41, connecting rod; 42, axial insertion hole; 43, clamping protrusion; 44, screw hole; 45, connecting hole; 5, limit sliding slot; 6, limit sliding block; 7, pincer block. DETAILED DESCRIPTION

[0018] The technical scheme of the utility model will be described clearly and completely in combination with the drawings, and obviously, the described embodiments are a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the scope of protection of the utility model.

[0019] In the description of the utility model, it is necessary to explain, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the indicated device or element must have a particular orientation, a particular orientation and operation, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0020] Reference Figures 1 to 6 Further illustrate the utility model embodiment.

[0021] A cutter structure of a granulator, comprising a base, a support frame is fixed on the upper end of the base, a driving piece is rotatably arranged on the support frame, a cutter body 1 rotating with the driving piece is connected to the driving piece, the cutter body 1 is installed on the support frame, when the driving piece rotates, the cutter body 1 rotates and cuts off the material through the blade 13 on the cutter body 1, and granulation is realized.

[0022] Reference Figure 1 、 2 The cutter body 1 is in a cylindrical structure, a plurality of axially extending knife grooves 12 are uniformly arranged on the outer circumferential surface of the cutter body 1 in the circumferential direction, a blade 13 is clamped in the knife groove 12, the blade 13 is in a strip shape, a convex shaft portion 14 protrudes axially at one end of the cutter body 1, a clamping groove 15 communicating with the knife groove 12 is formed at the other end of the cutter body 1, a limiting end cover 3 fixing one end of the blade 13 is slidably arranged on the convex shaft portion 14 in the axial direction, a limiting insertion groove 32 communicating with the knife groove 12 is arranged on the end face of the cutter body 1 close to the limiting end cover, the limiting insertion groove 32 corresponds to the knife groove 12 one by one, one end of the blade 13 is provided with a limiting protrusion 131, and the other end is provided with a clamping block 132 clamped with the clamping groove 15, the blade 13 can be directly placed into the knife groove 12 along the radial direction of the cutter body 1, and then slid a small section towards the clamping groove 15, so that the clamping block 132 is clamped in the clamping groove 15, and the limiting protrusion 131 slides into the limiting insertion groove 32; the limiting insertion groove 32 and the clamping groove 15 are arranged and matched with the limiting protrusion 131 and the clamping block 132, and the limiting end cover 3 is blocked, so that the blade 13 can be reliably positioned in the knife groove 12, and the disassembly and assembly operation of the blade 13 is convenient.

[0023] Reference Figure 5When the limiting end cover 3 is fixed, the limiting protrusion 131 slides and is clamped in the limiting slot 32, and when the blade 13 is replaced, only the limiting end cover 3 needs to be opened, and then the blade 13 is slid by a small section, so that the clamping block 132 is separated from the clamping groove 15, and at the same time, the limiting protrusion 131 is separated from the limiting slot 32, and the blade 13 can be taken out along the cutter body in the radial direction.

[0024] Reference is made to the accompanying drawings Figure 4 The convex shaft part 14 is provided with an axial insertion hole 42, and the axial insertion hole 42 is provided with a locking spring 4 and a connecting rod 41, the locking spring provides the connecting rod with an axial elastic force to make the limiting end cover have a tendency to move towards the cutter body, the locking spring 4 is sleeved on the connecting rod 41, and one side of the connecting rod 41 is provided with a clamping protrusion 43, a baffle is fixed at the outer end of the axial insertion hole 42 of the convex shaft part 14, the baffle is provided with a through hole, and the two ends of the locking spring 4 are connected with the clamping protrusion 43 and the baffle respectively, and the connecting rod 41 passes through the through hole and is connected with the limiting end cover 3; a threaded hole 44 is formed on the side of the connecting rod 41 away from the clamping protrusion 43, a connecting hole 45 is formed on the limiting end cover 3, a bolt passes through the connecting hole 45 and is threadedly connected with the threaded hole 44, so that the connecting rod 41 slides in the through hole, and the limiting end cover 3 is provided with a clamp block 7, when the blade 13 is replaced, the clamp block 7 is pulled by a pair of tongs or the like, so that the limiting end cover 3 moves axially along the cutter body 1, at the same time, the connecting rod 41 drives the clamping protrusion 43 to slide axially along the cutter body 1 in the axial insertion hole 42 and compresses the locking spring 4, then the blade 13 is slid by a small section towards the limiting end cover 3, and then the blade 13 is taken out along the cutter body 1 in the radial direction, then a new blade 13 is put into the blade slot 12 along the cutter body 1 in the radial direction, and is slid by a small section towards the clamping groove 15, so that the clamping block 132 is clamped in the clamping groove 15, the limiting protrusion 131 is partially slid into the limiting slot 32, the clamp block 7 is released, the locking spring 4 is reset, the clamping protrusion 43 is pushed and drives the limiting end cover 3 to reset towards the cutter body 1 and abut against the corresponding end of the blade 13.

[0025] Reference is made to the accompanying drawings Figure 2 、 5 The convex shaft part 14 is provided with a plurality of limiting sliding grooves 5 extending in the axial direction, the limiting sliding grooves 5 are uniformly arranged around the outer periphery of the convex shaft part 14, and the limiting end cover 3 is provided with a limiting sliding block 6 sliding in the limiting sliding groove 5, which has a certain guiding effect and is convenient to install.

[0026] The specific embodiment is only an explanation of the utility model, and is not a limitation of the utility model, and those skilled in the art can make modifications without creative contribution according to the needs after reading the specification, but as long as it is within the scope of the claims of the utility model, it is protected by the patent law.

Claims

1. A cutter structure of a granulator, comprising a cutter body, the cutter body being a cylindrical structure, a plurality of axially extending cutter grooves being uniformly distributed on the outer circumferential surface of the cutter body in the circumferential direction, and a cutter blade being connected and arranged in the cutter groove; characterized in that: The cutter body has a convex shaft part protruding axially at one end and a clamping groove communicating with the cutter groove at the other end, the convex shaft part is provided with a limiting end cap slidingly sleeved along the axial direction, the cutter blade has a limiting protrusion at one end close to the limiting end cap and a clamping block at the other end, the cutter body has a limiting insertion slot on the end face close to the limiting end cap, the limiting protrusion is inserted into the limiting insertion slot along the axial direction, the clamping block is inserted into the clamping groove along the axial direction, the limiting end cap limits the corresponding end of the cutter blade, and the cutter body is provided with a connecting piece connecting the limiting end cap.

2. The structure of a cutting knife of a granulator according to claim 1, characterized in that: The connecting piece includes a locking spring and a connecting rod, the convex shaft part has an axial insertion hole extending along the axial direction on the end face, the connecting rod slides along the axial direction in the axial insertion hole and is connected with the limiting end cap, the locking spring is sleeved on the connecting rod, and the locking spring provides the connecting rod with an axial elastic force to make the limiting end cap have a tendency to move towards the cutter body.

3. A cutter structure for a granulator as claimed in claim 2, characterized in that: The connecting rod is provided with a clamping protrusion at the inner end, the locking spring is sleeved on the connecting rod, the inner end abuts against the clamping protrusion, and the outer end abuts against a baffle, and the baffle is fixed at the outer port of the axial insertion hole.

4. The cutting knife structure of a prilling machine according to claim 2, characterized in that: The connecting rod is provided with a threaded hole at the outer end, the limiting end cap is formed with a connecting hole, and a bolt is threadedly connected with the threaded hole through the connecting hole.

5. The structure of a cutting knife of a granulator according to claim 1, characterized in that: The convex shaft part is provided with a plurality of limiting sliding grooves extending along the axial direction, the limiting sliding grooves are uniformly arranged around the outer periphery of the convex shaft part, and the limiting end cap is provided with a limiting sliding block sliding in the limiting sliding groove.

6. The structure of a cutting knife of a granulator according to claim 1, characterized in that: The limiting end cap is further provided with a clamping block on the outer side.

Images