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CN-122008436-A - Granulator

CN122008436ACN 122008436 ACN122008436 ACN 122008436ACN-122008436-A

Abstract

The invention relates to the technical field of grain cutting equipment, and particularly discloses a grain cutting machine which comprises a base, wherein a grain cutting box is arranged on the base, a feeding roller set is arranged in the grain cutting box, a mounting roller is also arranged in the grain cutting box, a plurality of cutter components are arranged on the mounting roller, an inner cavity is coaxially arranged in the mounting roller, a plurality of radial grooves communicated with the inner cavity are formed in the side wall of the inner cavity, the cutter components are slidably arranged in the radial grooves, a driving disc capable of axially moving and rotating is arranged in the inner cavity and is in transmission connection with the cutter components, and the grain cutting machine can steplessly adjust the grain cutting length under the condition of no stop or only short stop through simple rotation operation, so that the production requirements of products with different specifications are rapidly met, the utilization rate and the production flexibility of equipment are remarkably improved, a screw rod is adopted as a main pushing mechanism, the transmission is accurate, the self-locking performance is good, the spontaneous change of the position of a cutter head under a vibration working condition can be effectively prevented, and the grain cutting size is ensured to be stable.

Inventors

  • YU XINXIN
  • ZHANG GUOHUA
  • ZHANG PING
  • LU YAOPENG

Assignees

  • 山东隆华高分子材料股份有限公司

Dates

Publication Date
20260512
Application Date
20260413

Claims (10)

  1. 1. The granulator comprises a base (10), wherein a granulator box (20) is arranged on the base (10), and a feeding roller set (30) is arranged in the granulator box (20), and is characterized in that an installation roller (40) is also arranged in the granulator box (20), and a plurality of cutter assemblies (50) are arranged on the installation roller (40); An inner cavity (42) is coaxially arranged in the mounting roller (40), a plurality of radial grooves (43) communicated with the inner cavity (42) are formed in the side wall of the mounting roller, and the cutter assembly (50) is arranged in the radial grooves (43) in a sliding mode; A driving disc (61) capable of axially moving and rotating is arranged in the inner cavity (42), and the driving disc (61) is in transmission connection with the cutter assembly (50) so as to drive the cutter assembly (50) to radially move when rotating, thereby adjusting the distance between adjacent cutter assemblies (50); A central shaft (71) and a sleeve (72) sleeved on the central shaft (71) are coaxially arranged in the inner cavity (42), the driving disc (61) is fixed on the sleeve (72), a straight groove (711) and a spiral groove (712) which are mutually communicated are formed in the central shaft (71), and a lug (721) matched with the spiral groove (712) and the straight groove (711) is arranged in the sleeve (72); an axial pushing piece (80) for driving the sleeve (72) to axially move is also arranged in the inner cavity (42); When the protruding block (721) moves along the spiral groove (712), the sleeve (72) drives the driving disc (61) to rotate so as to adjust the distance between the cutter assemblies (50), and when the protruding block (721) enters the straight groove (711), the sleeve (72) drives the driving disc (61) to axially move so as to perform unlocking operation on the cutter assemblies (50).
  2. 2. The pelletizer of claim 1, wherein the cutter assembly (50) includes a base (51) slidably disposed within the radial slot (43) and a cutter head (52) removably mounted to the base (51), the drive plate (61) being drivingly connected to the base (51).
  3. 3. The granulator according to claim 2, wherein the base (51) is connected with a connecting rod (62) on one side close to the inner cavity (42), a chute (611) is arranged on the driving disc (61), the end of the connecting rod (62) is positioned in the chute (611), and when the driving disc (61) rotates, the base (51) is driven to slide radially through the cooperation of the chute (611) and the connecting rod (62).
  4. 4. The pelletizer of claim 2, wherein the bottom of the cutter head (52) is provided with a plugboard (521), the base (51) is provided with a slot (511) into which the plugboard (521) is inserted, and the plugboard (521) is fixed with a plugboard (522) provided with a positioning hole (523).
  5. 5. The pelletizer of claim 4, wherein the cutter assembly (50) further comprises a positioning seat (53) slidably disposed on the base (51), and a positioning rod (532) inserted into the positioning hole (523) is disposed on the positioning seat (53); when the driving disc (61) axially moves in the straight groove (711), the positioning seat (53) can slide to drive the positioning rod (532) to be separated from the positioning hole (523).
  6. 6. The pelletizer of claim 5, wherein a magnet (514) is disposed within the slot (511), and wherein the insert plate (521) is made of a magnetic metal material.
  7. 7. The pelletizer according to claim 1, wherein the axial pushing member (80) comprises a push ring (81), a push rod (82) and a screw rod (83), the push ring (81) is sleeved outside the center shaft (71) and is in threaded fit with the screw rod (83), two ends of the screw rod (83) are rotatably supported, and the push rod (82) is connected between the push ring (81) and the sleeve (72).
  8. 8. The pelletizer of claim 7, wherein the number of the screw rods (83) is two, and a scale bar (811) extending to the outside of the pelletizer box (20) is fixed on the push ring (81).
  9. 9. The pelletizer of claim 8, wherein the end of the mounting roller (40) is coaxially fixed with a connecting seat (41) rotatably mounted in the pelletizer box (20), the scale bar (811) is slidably mounted in the connecting seat (41), and the end of the screw rod (83) is fixedly mounted with a knob located outside the connecting seat (41).
  10. 10. The pelletizer according to any one of claims 1-9, wherein the feed roll set (30) comprises an upper roll (31), a lower roll (32) and a carrier plate (33) located between the lower roll (32) and the mounting roll (40), the carrier plate (33) is slidably mounted on the pelletizer box (20), and fastening bolts (23) adapted to the carrier plate (33) are threadedly connected to the pelletizer box (20).

Description

Granulator Technical Field The invention relates to the technical field of granulating equipment, in particular to a granulator. Background The granulating machine, also called granulating system, is a key equipment in the technical field of plastics processing and engineering, and mainly has the function of cutting long-strip, round-strip or directly extruded molten material into granules which are convenient for packaging, transportation and reprocessing. The patent document with the publication number of CN118238305B discloses a multichannel rapid plastic particle granulator, which comprises a frame, a cutting roller, a carrier roller and a connecting shaft, wherein the frame is provided with a supporting ring which is movably arranged on the frame, the cutting roller comprises a mounting roller which is rotatably arranged on the supporting ring, the mounting roller is movably provided with cutting knives which are distributed in a circumferential array, the carrier roller is rotatably arranged on the frame and matched with the cutting roller to cut materials, the connecting shaft is movably arranged on the mounting roller, the connecting shaft is rotated to enable the cutting knives to move relative to the mounting roller and drive the supporting ring to move so as to enable the cutting knives to keep a preset distance with the carrier roller, when plastic particles are produced, the cutting roller and the carrier roller are synchronously rotated, the cutting knives on the cutting roller and the carrier roller are matched to cut plastic strips, when the length of the plastic particles to be cut is required to be changed, the connecting shaft is manually rotated, the connecting shaft drives a plurality of cutting knives to move relative to the mounting roller so that the distance between the end parts of the cutting knives and the mounting roller is changed, and the distance between the two end parts of the cutting knives and the mounting roller is always changed, and the cutting roller is always kept in a preset distance between the end parts of the cutting roller and the carrier roller is changed, and the cutting roller is always kept by changing the preset distance between the end parts. But this scheme still has following problem when using, and the connecting axle does not possess the self-locking function, and after the adjustment finishes, the hand wheel is pulled back, the connecting axle and the driving disk on it are in "free state" on machinery, in the vibration that the granulator operation produced, the connecting axle is inevitable to take place to rotate easily, and the arbitrary rotation of connecting axle will directly lead to all cutting knife's radial position to change to the dynamic change grain length of cutting, make the plastics granule size of output inconsistent, even become the waste product. Disclosure of Invention The invention provides a granulator, which aims to solve the problems that a connecting shaft does not have a self-locking function in the related art, the connecting shaft is easy to rotate in vibration generated by the operation of the granulator, and the cutting length is dynamically changed, so that the sizes of produced plastic particles are inconsistent. The granulator comprises a base, wherein a granulating box is arranged on the base, a feeding roller set is arranged in the granulating box, a mounting roller is also arranged in the granulating box, and a plurality of cutter assemblies are arranged on the mounting roller; An inner cavity is coaxially arranged in the mounting roller, a plurality of radial grooves communicated with the inner cavity are formed in the side wall of the mounting roller, and the cutter assembly is arranged in the radial grooves in a sliding manner; A driving disc capable of axially moving and rotating is arranged in the inner cavity, and is in transmission connection with the cutter assembly so as to drive the cutter assembly to radially move when rotating, thereby adjusting the distance between adjacent cutter assemblies; The inner cavity is coaxially provided with a central shaft and a sleeve sleeved on the central shaft, the driving disc is fixed on the sleeve, the central shaft is provided with a straight groove and a spiral groove which are mutually communicated, and the sleeve is internally provided with a lug matched with the spiral groove and the straight groove; an axial pushing piece for driving the sleeve to axially move is also arranged in the inner cavity; when the protruding block enters the straight groove, the sleeve drives the driving disc to axially move so as to execute unlocking operation on the cutter assembly. Preferably, the cutter assembly comprises a base arranged in the radial groove in a sliding manner and a cutter head detachably arranged on the base, and the driving disc is in transmission connection with the base. Preferably, one side of the base, which is close to the inner cavity, is connected with a