Equipment for producing regenerated plastic particles by utilizing waste plastics

Abstract

The utility model relates to the field of plastic recovery, in particular to equipment for producing regenerated plastic particles by using waste plastics, and aims to solve the technical problems that the equipment is blocked and the granulation purity and efficiency are influenced during melting granulation because the waste plastics are inevitably doped with impurities. A gap is formed in the outer wall of the hot melting cylinder at the tail end of the filter screen I; the hot melting cylinder at the gap is detachably and hermetically connected with a residue chamber; the lower part of the filter screen I is connected with a filter screen II; the filter screen II is in contact with the side wall of the residue chamber; hot-melted waste plastics are conveyed by the spiral blade to pass through the inclined filter screen I, filtered impurities enter the impurity chamber through the notch along the inclined surface of the filter screen I, the impurities are collected, the granulation purity and efficiency are improved, and the impurities are automatically discharged by controlling the hydraulic cylinder to stretch out and draw back.

Description

Technical Field

[0001] The utility model relates to the field of plastic recycling, in particular to a device for producing recycled plastic particles by utilizing waste plastics. Background Art

[0002] Recycled plastic granules are made from waste plastics and are processed from discarded plastic products. The market is broad1. The production process mainly includes the following steps:

[0003] Raw material processing: First, waste plastics are processed after being sorted, cleaned, and crushed;

[0004] Crushing: Use low-noise, high-efficiency equipment to crush waste plastics, such as double-shaft tearing machines, single-shaft crushers, etc.

[0005] Recycling: Recycled particles are plastic raw materials obtained by processing waste plastics through physical or chemical methods such as pretreatment, melt granulation, modification, etc., and then reheated, plasticized, and pelletized for use;

[0006] However, waste plastics are inevitably mixed with impurities, which may cause equipment blockage during melt granulation, affecting the purity and efficiency of granulation. The utility model solves the above problem. Utility Model Content

[0007] The utility model aims to solve the technical problem that the waste plastics are inevitably mixed with impurities, which may cause equipment blockage during melt granulation and affect the purity and efficiency of granulation, and further provides a device for producing recycled plastic particles using waste plastics.

[0008] A device for producing recycled plastic particles using waste plastics includes: a hot melt cylinder, a heating element is provided on the inner wall of the hot melt cylinder, a conveying shaft is provided inside the hot melt cylinder, the conveying shaft is connected to a spiral blade, a filter screen 1 is connected to the conveying end of the hot melt cylinder, the filter screen 1 is tilted, the outside of the filter screen 1 is connected to a die, a notch is provided on the outer wall of the hot melt cylinder at the end of the filter screen 1, the hot melt cylinder at the notch is detachably and sealably connected to a residual chamber, a filter screen 2 is connected to the lower part of the filter screen, the filter screen 2 is in contact with the side wall of the residual chamber and the filter holes of the two plates overlap.

[0009] Furthermore, the conveying shaft is rotatably connected to the filter screen, and the spiral blade is divided into two sections, which are respectively located in the hot melt cylinder and the pressing die.

[0010] Furthermore, the die comprises a conveying section, the second section of the spiral blade is located in the conveying section, and the conveying section is connected to a plurality of extrusion buckets.

[0011] Furthermore, the residual chamber includes an outer shell, the upper part of which is connected to the hot melt cylinder through a notch, the side wall of the outer shell located at the conveying end is provided with a filter hole, the outer shell is not provided with a bottom wall, the bottom wall of the outer shell is sealed by a sealing plate connected to the second filter screen, the outer wall of the outer shell is connected to the telescopic end of the hydraulic cylinder, the fixed end of the hydraulic cylinder is connected to the outer wall of the die, the side wall of the outer shell located at the conveying head end is provided with a through hole, a magnetic rod is provided with a gap in front of the through hole, the magnetic rod is connected to the outer wall of the hot melt cylinder, the magnetic rod can be inserted into the through hole, a sliding plate is slidably connected inside the outer shell, the sliding plate on the side of the magnetic rod is a ferromagnetic metal, and the other side of the sliding plate is a heat insulating material.

[0012] Furthermore, a baffle is connected to the upper end of the shell, and the baffle is slidably connected to the second filter screen, and the baffle can block the gap.

[0013] Beneficial effects of the utility model:

[0014] 1. The spiral blades transport the hot melt waste plastics through the inclined filter screen 1, and the filtered impurities pass through the notch along the inclined surface of the filter screen 1 and enter the impurity chamber, completing the impurity collection and improving the purity and efficiency of granulation;

[0015] 2. The debris can be automatically removed by controlling the extension and contraction of the hydraulic cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the structural section of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the utility model miscellaneous chamber 7 Figure 1 ;

[0019] Figure 4 This is a schematic diagram of the structure of the utility model miscellaneous chamber 7 Figure 2 .

[0020] In the figure: hot melt cylinder 1; conveying shaft 2; spiral blade 3; filter screen 1 4; die 5; conveying section 51; extrusion bucket 52; notch 6; miscellaneous chamber 7; shell 71; hydraulic cylinder 72; through hole 73; magnetic plug rod 74; slide 75; baffle 76; filter screen 2 8; sealing plate 9. DETAILED DESCRIPTION

[0021] 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.

[0022] The rotational connection described in this device refers to the process of baking the bearing on the shaft, providing a spring retaining ring groove on the shaft or the shaft hole, and clamping the elastic retaining ring in the retaining ring groove to achieve axial fixation of the bearing and realize rotation; the articulation refers to a connection method that is active on connecting parts such as hinges, pins and short shafts.

[0023] The present invention will be described in detail below with reference to the accompanying drawings.

[0024] Embodiment 1:

[0025] The following is combined with Figure 1-4 Description of the present embodiment A device for producing recycled plastic particles using waste plastics comprises: a hot melt barrel 1, a heating element is arranged on the inner wall of the hot melt barrel 1, a conveying shaft 2 is arranged inside the hot melt barrel 1, the conveying shaft 2 is connected to the spiral blade 3, a filter screen 4 is connected to the conveying end of the hot melt barrel 1, the filter screen 4 is inclined, a die 5 is connected to the outside of the filter screen 4, a notch 6 is arranged on the outer wall of the hot melt barrel 1 at the end of the filter screen 4, a residual chamber 7 is detachably and sealedly connected to the hot melt barrel 1 at the notch 6, a filter screen 2 8 is connected to the lower part of the filter screen 4, the filter screen 2 8 is in contact with the side wall of the residual chamber 7 and the filter holes of the two plates overlap;

[0026] When in use, the crushed waste plastic is added into the hot melt cylinder 1, the heating element in the hot melt cylinder 1 heats and melts the plastic, the power of the conveying shaft 2 is turned on, the conveying shaft 2 drives the spiral blade 3 to rotate, and the spiral blade 3 conveys the molten plastic through the filter screen 4. Since the filter screen 4 is inclined, the impurities in the plastic cannot pass through the filter screen 4, slide down along the inclined surface of the filter screen 4, and enter the waste chamber 7 through the notch 6. The upper molten plastic passes through the filter screen 4, and the lower molten plastic passes through the side wall of the waste chamber 7 and the filter holes of the filter screen 8. The plastic enters the die 5, is extruded and pressed into strips, and is cooled and shredded to complete the granulation. When cleaning the waste, the waste chamber 7 can be removed for cleaning.

[0027] The conveying shaft 2 is rotatably connected to the filter screen 4, and the spiral blade 3 is divided into two sections and is respectively located in the hot melt cylinder 1 and the die 5;

[0028] The spiral blades 3 are arranged inside the die 5 to effectively prevent the die from being blocked.

[0029] The die 5 includes a conveying section 51, the second section of the spiral blade 3 is located in the conveying section 51, and the conveying section 51 is connected to a plurality of extrusion hoppers 52;

[0030] The miscellaneous chamber 7 includes a shell 71, the upper part of which is connected to the hot melt tube 1 through a notch 6, a filter hole is provided on the side wall of the shell 71 at the conveying end, the shell 71 is not provided with a bottom wall, and the bottom wall of the shell 71 is sealed by a sealing plate 9 connected to the filter screen 8, the outer wall of the shell 71 is connected to the telescopic end of the hydraulic cylinder 72, and the fixed end of the hydraulic cylinder 72 is connected to the outer wall of the die 5, and a through hole 73 is provided on the side wall of the shell 71 at the conveying head end, and a magnetic plug rod 74 is provided with a gap in front of the through hole 73, and the magnetic plug rod 74 is connected to the outer wall of the hot melt tube 1, and the magnetic plug rod 74 can be inserted into the through hole 73, and a slide 75 is slidably connected in the shell 71, and the slide 75 on the side of the magnetic plug rod 74 is a ferromagnetic metal, and the other side of the slide 75 is a heat insulating material;

[0031] The outer shell 71 receives the impurities, and the molten plastic enters the filter holes of the filter screen 8 through the filter holes at the conveying end of the outer shell 71 and is discharged. When the impurities in the outer shell 71 are cleaned, the hydraulic cylinder 72 is controlled to extend, and the power of the conveying shaft 2 is turned off. The telescopic end of the hydraulic cylinder 72 drives the outer shell 71 to slide, and the outer shell 71 drives the slide 75 to slide until the magnetic plug rod 74 inserts into the through hole 73 and contacts the slide 75. At this time, the sealing plate 9 is not at the lower part of the sealing outer shell 71, and the outer shell 71 continues to move while the slide 75 is different. The impurities are squeezed out from the lower part of the slide 75. When the telescopic end of the hydraulic cylinder 72 is reset, since the slide 75 on the side of the magnetic plug rod 74 is ferromagnetic metal and the other side of the slide 75 is insulation material, the contact surface between the slide 75 and the magnetic plug rod 74 will not lose magnetism due to heat. After the slide 75 is reset, it is disconnected from the magnetic plug rod 74, and the lower part of the outer shell 71 is sealed again to complete the impurity removal.

[0032] The upper end of the housing 71 is connected with a baffle 76, which is slidably connected to the filter screen 2 8, and the baffle 76 can block the gap 6;

[0033] When the housing 71 moves, the baffle 76 slides to block the notch 6 to prevent the hot melt plastic from flowing down.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0035] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for producing recycled plastic particles using waste plastics, comprising: A hot melt tube (1), wherein a heating element is disposed on the inner wall of the hot melt tube (1), a conveying shaft (2) is disposed inside the hot melt tube (1), and the conveying shaft (2) is connected to a spiral blade (3). The invention is characterized in that: a filter screen 1 (4) is connected to the conveying end of the hot melt tube (1), the filter screen 1 (4) is inclined, the outside of the filter screen 1 (4) is connected to a die (5), a notch (6) is provided on the outer wall of the hot melt tube (1) at the end of the filter screen 1 (4), the hot melt tube (1) at the notch (6) is detachably and sealingly connected to a waste chamber (7), the lower part of the filter screen 1 (4) is connected to a filter screen 2 (8), the filter screen 2 (8) is in contact with the side wall of the waste chamber (7) and the filter holes of the two plates overlap.

2. The device for producing recycled plastic particles from waste plastics according to claim 1, characterized in that: The conveying shaft (2) is rotatably connected to the filter screen (4), and the spiral blade (3) is divided into two sections, which are respectively located in the hot melt cylinder (1) and the pressing die (5).

3. The device for producing recycled plastic particles from waste plastics according to claim 2, characterized in that: The compression mold (5) comprises a conveying section (51), the second section of the spiral blade (3) is located in the conveying section (51), and the conveying section (51) is connected to a plurality of extrusion hoppers (52).

4. The device for producing recycled plastic particles from waste plastics according to claim 1, characterized in that: The residual chamber (7) comprises a shell (71), the upper part of which is connected to the hot melt tube (1) through a notch (6), a side wall of the shell (71) located at the conveying end is provided with a filter hole, the shell (71) is not provided with a bottom wall, and the bottom wall of the shell (71) is sealed by a sealing plate (9) connected to the second filter screen (8), the outer wall of the shell (71) is connected to the telescopic end of the hydraulic cylinder (72), and the fixed end of the hydraulic cylinder (72) is connected to the outer wall of the die (5), the side wall of the shell (71) located at the conveying head end is provided with a through hole (73), and a magnetic plug rod (74) is provided in front of the through hole (73) with a gap, the magnetic plug rod (74) is connected to the outer wall of the hot melt tube (1), and the magnetic plug rod (74) can be inserted into the through hole (73), and a slide plate (75) is slidably connected inside the shell (71), and the side slide plate (75) of the magnetic plug rod (74) is ferromagnetic metal, and the other side of the slide plate (75) is a heat insulation material.

5. The device for producing recycled plastic particles from waste plastics according to claim 4, characterized in that: The upper end of the housing (71) is connected with a baffle (76), which is slidably connected to the second filter screen (8), and the baffle (76) can block the gap (6).

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