Waste plastic regeneration pretreatment device

Abstract

The utility model relates to the field of plastic recovery, in particular to a waste plastic regeneration pretreatment device, and aims to solve the technical problem that the label removing effect is not ideal for labels which are coated tightly or have more adhesive joints in the prior art. An auxiliary discharging mechanism is arranged in a hopper and can enable a single plastic bottle to be vertically discharged out of the hopper; blades are evenly distributed on the circumference of the inner wall of the lower end of the hopper, two rotating rollers are rotatably connected to the inner wall of the label removing chamber, the two rotating rollers are obliquely arranged and rotate in the same direction, a gap is reserved between the two rotating rollers, two label removing rubber rollers are arranged in the gap and rotatably connected to the inner wall of the label removing chamber, and the rotating directions of the two label removing rubber rollers are opposite. A label on a plastic bottle is cut into sections through the blades evenly distributed on the circumference, due to the fact that tearing force which can be borne by each section of the label is greatly reduced after the label is cut, the two label removing rubber rollers can easily tear off the label on each face of the rotating plastic bottle, the plastic bottle is stirred through the blades by the fan blades, and the plastic bottle is effectively prevented from being blocked.

Description

Technical Field

[0001] The utility model relates to the field of plastic recycling, in particular to a waste plastic regeneration pretreatment device. Background Art

[0002] Portable beverages such as bottled mineral water are becoming more and more popular due to their convenience, cleanliness and hygiene, which results in the production of a large number of discarded plastic bottles. In order to recycle these discarded plastic bottles, they need to be crushed, cleaned, and separated from impurities. Traditional recycling processes and equipment have low technical content, high recycling costs, and unsatisfactory cost-effectiveness. They also emit a lot of pollutants, especially labels attached to the bottle body, which are difficult to remove. To recycle plastic bottles, the labels must be pre-processed first;

[0003] The prior art does not provide an ideal label removal effect for labels that are tightly wrapped or have many adhesive joints. The utility model solves the above problems. Utility Model Content

[0004] In order to solve the technical problem in the prior art that the label removal effect is not ideal for labels with tight coating or more adhesive joints, the utility model further provides a waste plastic recycling pretreatment device.

[0005] A waste plastic recycling pretreatment device comprises: a hopper, the lower end of the hopper is connected to an inclined label removal chamber, an auxiliary unloading mechanism is arranged in the hopper, the auxiliary unloading mechanism can make a single plastic bottle vertically discharged from the hopper, the inner wall of the lower end of the hopper is evenly distributed with blades on the circumference, the inner wall of the label removal chamber is rotatably connected to two rollers, the two rollers are inclined and rotate in the same direction, a gap is left between the two rollers, two label removal rubber rollers are arranged in the gap, the label removal rubber rollers are rotatably connected to the inner wall of the label removal chamber, and the two label removal rubber rollers rotate in opposite directions.

[0006] Furthermore, the two signature-removing rubber rollers are replaced by two sets of vertically arranged belt drives, and the conveying directions of the two sets of belt drives are opposite.

[0007] Furthermore, the auxiliary unloading mechanism includes a bracket, which is connected to the upper end of the hopper, an input shaft is rotatably connected inside the bracket, a pusher claw is connected to the lower end of the input shaft, a discharge pipe is connected to the lower part of the hopper, a blade is connected to the inner wall of the discharge pipe, holes are provided on both sides of the discharge pipe, and two groups of fan blades with opposite rotation directions are provided outside the holes, and the minimum gap within the rotation range of the two blades is smaller than the inner diameter of the discharge pipe.

[0008] Beneficial effects of the utility model:

[0009] 1. Use blades evenly distributed around the circumference to cut the labels on the plastic bottles into sections. Since the tearing force that each section of the label can withstand is greatly reduced after the label is cut, two label removal rollers can easily tear off the labels on each side of the rotating plastic bottle;

[0010] 2. The fan blades push the plastic bottles through the blades, effectively preventing the plastic bottles from getting stuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0012] Figure 2 It is a schematic diagram of the structural section of the utility model;

[0013] Figure 3 This is a schematic diagram of the structure of the utility model Figure 2 .

[0014] In the figure: hopper 1; sign-removing chamber 2; auxiliary unloading mechanism 3; bracket 31; input shaft 32; pusher claw 33; discharge pipe 34; fan blade 35; blade 4; roller 5; sign-removing rubber roller 6; belt drive 7. DETAILED DESCRIPTION

[0015] 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.

[0016] 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.

[0017] The present invention will be described in detail below with reference to the accompanying drawings.

[0018] Embodiment 1:

[0019] The following is combined with Figure 1-3 The present embodiment describes a waste plastic recycling pretreatment device, comprising: a hopper 1, the lower end of the hopper 1 is connected to an inclined label removal chamber 2, an auxiliary material discharge mechanism 3 is arranged in the hopper 1, the auxiliary material discharge mechanism 3 can make a single plastic bottle vertically discharged from the hopper 1, the inner wall of the lower end of the hopper 1 is evenly distributed with blades 4, the inner wall of the label removal chamber 2 is rotatably connected to two rollers 5, the two rollers 5 are inclined and rotate in the same direction, a gap is left between the two rollers 5, two label removal rubber rollers 6 are arranged in the gap, the label removal rubber rollers 6 are rotatably connected to the inner wall of the label removal chamber 2, and the two label removal rubber rollers 6 rotate in opposite directions;

[0020] Add the waste plastic bottle into the hopper 1, turn on the auxiliary unloading mechanism 3, the auxiliary unloading mechanism 3 allows the single plastic bottle to be vertically discharged from the hopper 1, the vertical plastic bottle contacts the blade 4, the label on the outside of the plastic bottle that is not tightly glued is scratched off, and the label that is tightly glued is divided into multiple sections by the blade, the plastic bottle falls between two rollers 5 rotating in the same direction, starts to rotate and slides down tilted, the lower part of the plastic bottle contacts the two label removal rubber rollers 6, the upper parts of the two label removal rubber rollers 6 rotate inward in opposite directions, and the label is torn off under the action of friction. After the label is cut, the tearing force that each section of the label can withstand is greatly reduced, and the two label removal rubber rollers 6 can easily tear off the labels on all sides of the rotating plastic bottle.

[0021] The auxiliary unloading mechanism 3 includes a bracket 31, the bracket 31 is connected to the upper end of the hopper 1, an input shaft 32 is rotatably connected in the bracket 31, a pusher claw 33 is connected to the lower end of the input shaft 32, a discharge pipe 34 is connected to the lower part of the hopper 1, a blade 4 is connected to the inner wall of the discharge pipe 34, holes are provided on both sides of the discharge pipe 34, two sets of blades 35 with opposite rotation directions are provided outside the holes, and the minimum gap of the rotation range of the two blades 35 is smaller than the inner diameter of the discharge pipe 34;

[0022] Some plastic bottles are placed horizontally at the bottom of the hopper 1, causing the hopper to be blocked. The input shaft 32 is turned on, and the input shaft 32 drives the pusher claw 33 to rotate. The pusher claw 33 pushes the horizontal plastic bottles to become vertical, and the plastic bottles are discharged into the discharge pipe 34. The two fan blades 35 with opposite rotation directions push downwards through the blade 4 to complete the auxiliary unloading.

[0023] Embodiment 2:

[0024] The following describes a waste plastic recycling pretreatment device based on the first embodiment, wherein the two rubber removal rollers 6 are replaced by two sets of vertically arranged belt drives 7, and the conveying directions of the two sets of belt drives 7 are opposite;

[0025] Compared with the label removing rubber roller 6, the belt drive 7 has a larger contact area, can provide a greater tearing force, and has a better label removing effect.

[0026] 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.

[0027] Although 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 waste plastic regeneration pretreatment device, characterized in that: include: A hopper (1) is provided, wherein the lower end of the hopper (1) is connected to an inclined label removal chamber (2), an auxiliary material discharge mechanism (3) is provided in the hopper (1), and the auxiliary material discharge mechanism (3) can discharge a single plastic bottle vertically out of the hopper (1), blades (4) are evenly distributed on the circumference of the inner wall of the lower end of the hopper (1), two rollers (5) are rotatably connected to the inner wall of the label removal chamber (2), the two rollers (5) are inclined and rotate in the same direction, a gap is left between the two rollers (5), two label removal rubber rollers (6) are provided in the gap, the label removal rubber rollers (6) are rotatably connected to the inner wall of the label removal chamber (2), and the two label removal rubber rollers (6) rotate in opposite directions.

2. A waste plastic recycling pretreatment device according to claim 1, characterized in that: The two label removal rubber rollers (6) are replaced by two sets of vertically arranged belt drives (7), and the conveying directions of the two sets of belt drives (7) are opposite.

3. A waste plastic regeneration pretreatment device according to claim 1, characterized in that: The auxiliary unloading mechanism (3) comprises a bracket (31), the bracket (31) is connected to the upper end of the hopper (1), an input shaft (32) is rotatably connected inside the bracket (31), a pusher claw (33) is connected to the lower end of the input shaft (32), a discharge pipe (34) is connected to the lower part of the hopper (1), a blade (4) is connected to the inner wall of the discharge pipe (34), holes are provided on both sides of the discharge pipe (34), two groups of blades (35) with opposite rotation directions are provided outside the holes, and the minimum gap within the rotation range of the two blades (35) is smaller than the inner diameter of the discharge pipe (34).

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