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CN-122008434-A - Regenerated plastic molten material extrusion die head granulating mechanism

CN122008434ACN 122008434 ACN122008434 ACN 122008434ACN-122008434-A

Abstract

The invention discloses a regenerated plastic molten material extrusion die head granulating mechanism, which belongs to the technical field of plastic processing equipment and comprises an extruder and a cutting box, wherein a cooling groove is fixedly arranged on the side wall of the extruder. Meanwhile, the rotating rod drives the first bevel gear to revolve around the fixed second bevel gear in the rotating process of the rotating rod, and then drives the first bevel gear to rotate, the sliding block and the cutting knife are driven to reciprocate up and down along the sliding groove through the reciprocating screw rod, the cutting point positions of the cutting knife and the material strip are effectively changed, the problems of long-time stress, excessive abrasion, edge breakage and the like of a single point of the cutting knife are thoroughly avoided, the service life of the cutting knife is greatly prolonged, the cutter replacement frequency is reduced, the equipment operation and maintenance cost is reduced, meanwhile, the leveling and the uniformity of the size of a cut grain are ensured, and the effect of improving the processing efficiency is achieved.

Inventors

  • HUANG WEITAO
  • JIANG YAN

Assignees

  • 烟台铭添机械科技有限公司

Dates

Publication Date
20260512
Application Date
20260324

Claims (10)

  1. 1. The utility model provides a regeneration plastic molten material extrusion die head grain cutting mechanism, includes extruder (101) and cutting box (102), fixedly mounted has cooling tank (103) on the lateral wall of extruder (101), install pull roll (104) on the lateral wall of cutting box (102), wherein fixedly mounted has motor (105) on the lateral wall of cutting box (102), fixedly mounted has bull stick (106) on the output of motor (105), fixedly mounted has installation piece (107) on bull stick (106), be equipped with cutting knife (108) on installation piece (107), be equipped with adjusting part (2) on installation piece (107); The utility model discloses a cutting tool, including adjusting component (2), including the symmetry set up spout on installation piece (107), slidable mounting has slider (201) on the spout, just cutting tool (108) demountable installation is on slider (201), two common fixed mounting has reciprocating lead screw (202) between slider (201), install first bevel gear (203) with reciprocating lead screw (202) screw-thread fit on installation piece (107) rotation, fixed mounting has installation pole (205) on cutting case (102), fixed mounting has barrel (206) with bull stick (106) normal running fit on installation pole (205), fixed mounting has second bevel gear (204) with first bevel gear (203) meshing on barrel (206).
  2. 2. The extrusion die head granulating mechanism for the recycled plastic molten material is characterized in that scraping plates (207) are symmetrically and fixedly arranged on the mounting blocks (107), the scraping plates (207) are in sliding fit with the cutting knives (108), cleaning rods (208) are arranged on the scraping plates (207), and bristles (209) are uniformly and fixedly arranged on the cleaning rods (208).
  3. 3. The extrusion die head grain cutting mechanism for the recycled plastic molten material is characterized in that a material guide plate (301) is arranged in the cutting box (102), the material guide plate (301) comprises a first inclined plate (3011), a second inclined plate (3012) and a discharging plate (3013), the first inclined plate (3011) and the second inclined plate (3012) are vertically and slidably arranged on the inner side wall of the cutting box (102), the discharging plate (3013) is located below the first inclined plate (3011) and the second inclined plate (3012), and a discharging hole matched with the discharging plate (3013) is formed in the cutting box (102).
  4. 4. The extrusion die head granulating mechanism for the recycled plastic molten material is characterized in that a connecting rod (302) fixedly connected with a first inclined plate (3011) is fixedly arranged on the material guide plate (301), the connecting rod (302) is fixedly connected with a second inclined plate (3012), a mounting groove is formed in the connecting rod (302), an inclined block (303) is fixedly arranged in the mounting groove, and a first spring (304) is commonly arranged between the material guide plate (301) and the cutting box (102).
  5. 5. The extrusion die head granulating mechanism for the recycled plastic molten material is characterized in that a linkage block (401) in rotating fit with the rotating rod (106) is fixedly arranged on the cylinder (206), a vertical rod (402) in rotating fit with the connecting rod (302) is rotatably arranged on the linkage block (401), a bevel gear set (403) is jointly arranged on the vertical rod (402) and the connecting rod (302), the rotating rod (106) drives the vertical rod (402) to rotate through the bevel gear set (403), and a lug (404) in matching with the bevel block (303) is arranged on the vertical rod (402).
  6. 6. The extrusion die head granulating mechanism for the recycled plastic molten material is characterized in that cavities (501) are formed in the material guide plates (301), communication holes (502) communicated with the cavities (501) are formed in the top wall of the material guide plates (301), vertical grooves (503) are formed in the connecting rods (302), communication grooves (504) communicated with the cavities (501) are uniformly formed in the vertical grooves (503), the bottom wall of the cutting box (102) is an inclined plane, and a material guide pipe (505) communicated with the outside is fixedly arranged on the bottom wall of the cutting box (102).
  7. 7. The extrusion die head granulating mechanism for the recycled plastic molten material is characterized in that a cavity (601) is formed in the cleaning rod (208), air holes (602) are uniformly formed in the cavity (601), an annular cavity (603) is formed in the cylinder (206), a first air pipe (604) communicated with the cavity (601) is fixedly arranged on the mounting block (107), and one end, far away from the cavity (601), of the first air pipe (604) is communicated with the annular cavity (603).
  8. 8. The extrusion die head granulating mechanism for the recycled plastic molten material is characterized in that a telescopic pipe (605) is fixedly installed between the discharging plate (3013) and the inner wall of the cutting box (102), an air inlet valve (606) with an input end communicated with the outside is fixedly installed on the side wall of the cutting box (102), an air outlet valve (607) is fixedly installed on the cutting box (102), a second air pipe (608) is fixedly installed on the air outlet valve (607), and one end, far away from the air outlet valve (607), of the second air pipe (608) is communicated with an annular cavity (603) on the cylinder body (206) so that air flow is led into the cavity (601) through the annular cavity (603) and the first air pipe (604).
  9. 9. The extrusion die head granulating mechanism for recycled plastic molten material according to claim 7, wherein an annular plate (609) is rotatably mounted on the cylinder (206), the annular plate (609) is in rotary sealing fit with the annular cavity (603), and one end of the first air pipe (604) away from the cavity (601) is communicated with the annular cavity (603).
  10. 10. The extrusion die head of claim 5, wherein said protrusions (404) are rotatably mounted on the vertical rod (402).

Description

Regenerated plastic molten material extrusion die head granulating mechanism Technical Field The invention relates to the technical field of plastic processing equipment, in particular to a regenerated plastic molten material extrusion die head granulating mechanism. Background With the increasing environmental awareness and urgent demands for recycling resources, recycling of recycled plastics becomes an important way to solve the problems of plastic pollution and resource waste. In order to improve the flowability, bulk density and metering accuracy of materials, the recycled plastics are conveniently and automatically transported, stored and packaged, and are usually processed into particles with regular shapes and uniform sizes by a granulator. In the existing process of granulating the reclaimed plastic, the molten material is extruded into a thin strip shape through an extruding machine, then is transmitted along a cooling groove and is cooled and solidified, and finally, the thin strip-shaped material is chopped into particles through a blanking module. For example, chinese patent publication No. CN118181573B discloses a plastic granulator, which uses extrusion columns and extrusion columns to clamp two sides of a plastic strip during cutting, so that the extruded plastic strip is in a horizontal state during cutting, and the stability of the plastic strip during cutting is improved. However, most of the existing dicing cutters directly cut plastic strips through cutting knives, contact points between the plastic strips and the cutting knives are unchanged for a long time, after the contact points between the cutting knives and the plastic strips are rubbed for a long time, the cutting knives are easy to damage, so that users need to replace the cutting knives, recycling plastic components is complex, adhesion and high-temperature gelatinization are easy to occur during cutting due to the fact that the cutting knives are rubbed for a long time, and part of melted plastic strips are adhered to the cutting knives, chips are difficult to separate, so that the processing efficiency of plastic particles is reduced. Disclosure of Invention Aiming at the problems in the prior art, the invention aims to provide a regenerated plastic molten material extrusion die head granulating mechanism which can achieve the aim of improving the plastic particle processing efficiency. In order to solve the problems, the invention adopts the following technical scheme. The utility model provides a regeneration plastic molten material extrusion die head grain cutting mechanism, includes extruder and cutting box, fixed mounting has the cooling tank on the lateral wall of extruder, install the pull roll on the lateral wall of cutting box, fixed mounting has the motor on the lateral wall of cutting box, fixed mounting has the bull stick on the output of motor, fixed mounting has the installation piece on the bull stick, be equipped with the cutting knife on the installation piece, be equipped with adjusting part on the installation piece; The adjusting component comprises sliding grooves symmetrically formed in the mounting blocks, sliding blocks are slidably arranged on the sliding grooves, the cutting knives are detachably arranged on the sliding blocks, a reciprocating screw rod is fixedly arranged between the two sliding blocks, a first bevel gear in threaded fit with the reciprocating screw rod is rotatably arranged on the mounting blocks, a mounting rod is fixedly arranged on the cutting box, a barrel in rotary fit with the rotating rod is fixedly arranged on the mounting rod, and a second bevel gear meshed with the first bevel gear is fixedly arranged on the barrel. Further, the installation block is symmetrically and fixedly provided with the scraping plates, the scraping plates are in sliding fit with the cutting knife, the scraping plates are provided with cleaning rods, and bristles are uniformly and fixedly arranged on the cleaning rods. Further, be equipped with the stock guide in the cutting case, the stock guide includes first swash plate, second swash plate, discharge plate, first swash plate and the equal vertical slidable mounting of second swash plate are on the cutting case inside wall, just the vertical slidable mounting of discharge plate is on the cutting case inside wall, just the discharge plate is located first swash plate with the below of second swash plate, offer on the cutting case with discharge plate complex discharge gate. Further, a connecting rod fixedly connected with the first inclined plate is fixedly arranged on the material guiding plate, the connecting rod is fixedly connected with the second inclined plate, a mounting groove is formed in the connecting rod, an inclined block is fixedly arranged in the mounting groove, and a first spring is commonly arranged between the material guiding plate and the cutting box. Further, a linkage block which is in rotary fit with the rotary rod is fixe