Granulating device for film waste

Abstract

The utility model discloses a granulating device for film waste, which relates to the technical field of waste processing equipment and comprises a stirring bin and a material extruding bin which are arranged up and down and communicated, a stirring rod is arranged in the stirring bin and can stir molten materials, a material extruding screw is arranged in the material extruding bin and can extrude the molten materials, and the material extruding screw is connected with the stirring bin and the material extruding bin. A plurality of heat preservation sleeves embedded with heating rings are arranged on the outer wall of the material extruding bin in a sleeving mode at intervals, a mouth mold assembly formed by splicing a plurality of pore plates front and back is installed at the output end of the material extruding bin, and the mouth mold assembly is at least provided with a set of cutters used for cutting extruded materials into particles. Compared with the prior art, the heating ring can heat the extrusion bin to a certain extent, and materials inside the extrusion bin are prevented from being condensed too early.

Description

Technical Field

[0001] The utility model relates to a granulating device, in particular to a granulating device used for film waste, belonging to the technical field of waste processing equipment. Background Art

[0002] It is a better choice to melt the waste generated by film cutting into plastic pellets for recycling. After searching, the patent with publication number CN218429344U discloses a granulation device for film production, which can realize the above-mentioned waste reprocessing process. The applicant believes that when the material in the molten state is reprocessed using a granulator, there are the following problems that need to be considered for improvement, specifically:

[0003] 1. The material begins to condense during extrusion, causing blockage of the die at the output end;

[0004] 2. The die will inevitably adhere to condensed materials after long-term use. Utility Model Content

[0005] In view of the above-mentioned deficiencies in the prior art, the utility model provides a granulation device for film waste.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a granulation device for film waste, including a stirring bin and an extrusion bin which are arranged upper and lower and communicated with each other, wherein the stirring bin has a stirring rod for stirring the molten material, and the extrusion bin has an extrusion screw for extruding the molten material, and a plurality of insulation sleeves with embedded heating rings are arranged at intervals on the outer wall of the extrusion bin, and a die assembly composed of a plurality of orifice plates assembled front and back is installed at the output end of the extrusion bin, and the die assembly is provided with at least one set of cutters for cutting the extruded material into granules.

[0007] Preferably, the orifice plate located at the front end among the plurality of orifice plates is an outer plate with a plurality of formed holes; the remaining orifice plates among the plurality of orifice plates are inner plates with a plurality of transition holes, and the number of inner plates is at least 2, and the transition holes thereof are larger than the formed holes of the outer plate.

[0008] Preferably, between two adjacent inner plates, the transition hole of the rear inner plate is larger than the transition hole of the front inner plate.

[0009] Preferably, the die assembly further comprises a fixing ring for being mounted on the outer side of the orifice plate.

[0010] Preferably, a die mounting seat with a flip cover is fixed to the output end of the extrusion bin, and the die assembly is embedded in the die mounting seat.

[0011] Compared with the prior art, the utility model has at least the following advantages:

[0012] 1. The heating ring can heat the extrusion bin to a certain extent to prevent the internal material from condensing prematurely;

[0013] 2. The die assembly can concentrate the extrusion force, slow down the phenomenon of material adhesion and clogging at the outlet, and the granulation device has a longer service life;

[0014] 3. The die assembly can be disassembled and the condensed material inside can be quickly cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Figure 2 yes Figure 1 main view.

[0017] Figure 3 yes Figure 1 A magnified schematic diagram of center A.

[0018] Figure 4 This is a schematic diagram of the opening of the die mounting seat.

[0019] Figure 5 This is a disassembled schematic diagram of the die assembly.

[0020] Figure 6 It is a structural schematic diagram of the insulation sleeve.

[0021] In the figure, 1-base; 2-mixing chamber; 201-mixing motor; 3-extrusion chamber; 301-extrusion motor; 4-insulation sleeve; 401-heating ring; 402-fan; 5-temperature measuring instrument; 6-die assembly; 601-outer plate; 6011-forming hole; 602-inner plate; 6021-transition hole; 603-fixing ring; 7-cutter; 8-die mounting seat; 801-flip cover; 802-fastening ring; 9-protective mesh cover. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1-Figure 6As shown: a granulation device for film waste, including a frame with a base 1, in which a stirring chamber 2 and an extrusion chamber 3 are arranged in an upper and lower distribution in the frame, and at least one inlet is arranged on the top of the stirring chamber 2 for pouring molten materials. Inside the stirring chamber 2, there is a stirring rod driven by a stirring motor 201 to repeatedly stir the poured molten materials to prevent them from solidifying; inside the extrusion chamber 3, there is an extrusion screw driven by an extrusion motor 301 to extrude the molten materials flowing into the extrusion chamber 3 outward.

[0024] On the outside of the extrusion bin 3, a plurality of insulation sleeves 4 are arranged at intervals, and a heating ring 401 is embedded in the insulation sleeve 4 for fitting with the extrusion bin 3. The heating ring 401 can heat the extrusion bin 3 to maintain the state of the material inside the extrusion bin 3 stable and avoid its premature condensation.

[0025] Furthermore, the above-mentioned insulation sleeve 4 is also connected to a fan 402, and the air duct of the fan 402 is connected to the insulation sleeve 4. The fan 402 is used to cool the extrusion bin 3 to avoid excessive heating of the heating ring 401.

[0026] Furthermore, the extrusion bin 3 is also equipped with a temperature measuring instrument 5. Multiple temperature measuring instruments 5 can be arranged along the direction of the extrusion bin 3, and are preferably arranged near the output end of the extrusion bin 3. They can be used to detect the state of the material inside the extrusion bin 3 and adjust the action of the heating ring 401 and the fan 402 in an electronically controlled manner.

[0027] At the output end of the extrusion bin 3, a die assembly 6 composed of a plurality of orifice plates assembled front and back is installed, and a cutter 7 for cutting the extruded material into particles is arranged on the die assembly 6. Specifically, the number of orifice plates in this embodiment is 4; among them, the orifice plate at the front end is an outer plate 601 with a plurality of forming holes 6011, and the remaining three orifice plates are inner plates 602 with a plurality of transition holes 6021, and the transition holes 6021 are larger than the forming holes 6011 of the outer plate 601.

[0028] Furthermore, the three inner plates 602 are inner plate I, inner plate II, and inner plate III from back to front, and the transition hole 6021 of the inner plate 602 at the rear end is larger than the transition hole 6021 of the inner plate 602 at the front end. Specifically, the transition hole 6021 of the inner plate I can be a large strip hole, the transition hole 6021 of the inner plate II can be a small strip hole, the transition hole 6021 of the inner plate III can be a large-diameter circular hole, and the forming hole 6011 of the outer plate 601 can be a small-diameter circular hole.

[0029] Furthermore, the cutters 7 can be provided in multiple groups and fixed coaxially with the extrusion screw.

[0030] As described above in the prior art, the molten material is directly extruded outward from the extrusion end cover provided on the extrusion barrel. Generally, in order to make the material into small particles after extrusion, the aperture of the extrusion hole should not be too large, so the material is more likely to adhere to the edge of the extrusion hole, causing condensation and blockage; the present design chooses to add a plurality of inner plates 602 with transition holes of different sizes behind the outer plate 601, so that the extrusion force can be continuously concentrated during the extrusion process, thereby reducing the phenomenon of material adhering to the die assembly 6.

[0031] Furthermore, the above-mentioned die assembly 6 also includes a fixing ring 603, and the fixing ring 603 is installed on the outside of the above-mentioned four orifice plates that are assembled with each other so that they can form a whole with each other.

[0032] Furthermore, a die mounting seat 8 is fixed to the output end of the extrusion bin 3 , and a flap 801 is hingedly connected to the die mounting seat 8 . The die assembly 6 is embedded in the die mounting seat 8 through a fixing ring 603 , and is locked and fixed to the flap 801 .

[0033] Furthermore, after the flip cover 801 is closed on the die mounting seat 8, its front end is locked and fixed to the die mounting seat 8 via a fastening ring 802 with a protective mesh cover 9.

[0034] The extrusion process of this design is roughly as follows: the molten material flows into the extrusion bin after being stirred in the mixing bin, and is squeezed into the inlet die assembly under the action of the extrusion screw, and passes through the three inner plates in turn, and finally extruded outward from the forming hole of the outer plate.

[0035] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A granulation device for waste film, comprising a stirring chamber (2) and an extrusion chamber (3) arranged in a vertical direction and communicating with each other, wherein the stirring chamber (2) has a stirring rod for stirring the molten material, and the extrusion chamber (3) has an extrusion screw for extruding the molten material, characterized in that: A plurality of heat-insulating sleeves (4) with embedded heating rings (401) are arranged at intervals on the outer wall of the extrusion bin (3), and a die assembly (6) composed of a plurality of orifice plates assembled front and back is installed at the output end of the extrusion bin (3), and the die assembly (6) is provided with at least one set of cutters (7) for cutting the extruded material into granules.

2. A granulation device for film waste according to claim 1, characterized in that: The orifice plate located at the front end of the plurality of orifice plates is an outer plate (601) having a plurality of formed holes (6011); the remaining orifice plates of the plurality of orifice plates are inner plates (602) having a plurality of transition holes (6021), and the number of the inner plates (602) is at least 2, and the transition holes (6021) thereof are larger than the formed holes (6011) of the outer plate (601).

3. A granulation device for film waste as claimed in claim 2, characterized in that: Between two adjacent inner plates (602), the transition hole (6021) of the rear inner plate (602) is larger than the transition hole (6021) of the front inner plate (602).

4. A granulation device for film waste according to claim 1, characterized in that: The die assembly (6) further comprises a fixing ring (603) for being mounted on the outer side of the orifice plate.

5. A granulation device for film waste according to claim 1, characterized in that: A die mounting seat (8) with a flip cover (801) is fixed to the output end of the extrusion bin (3), and the die assembly (6) is embedded in the die mounting seat (8).

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