Plastic particle rubbing mechanism and granulator

Abstract

The plastic particle rubbing mechanism comprises an outer cylinder provided with a rubbing area and further comprises an inner cylinder rotating in the direction opposite to that of the outer cylinder, an extrusion area is arranged at the position, with the minimum distance from the outer side wall of the inner cylinder to the inner side wall of the outer cylinder, of the outer side wall of the inner cylinder, and a downward pressing area matched with the extrusion area is arranged between the end face of the inner cylinder and the bottom of the outer cylinder. According to the plastic particle rubbing mechanism and the granulator provided by the utility model, waste plastic is automatically extruded, rubbed and formed in the rubbing area, and the waste plastic is accommodated in the extrusion area formed by the outer side wall of the inner barrel in the process, so that the waste plastic is reversely pressed by the inner barrel, the waste plastic is curled and rubbed more obviously, and the plastic particle rubbing effect is improved. Meanwhile, the waste plastic can also be positioned on the inclined surface of the rubbing area, namely the position of the downward pressing area is pressed, so that the waste plastic is subjected to more rubbing area, and the rubbing molding efficiency of the waste plastic is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pelletizing equipment technical field, concretely related to a kind of plastic particle rubbing mechanism and granulator. BACKGROUND

[0002] In order to reduce the transportation volume during recycling and processing, the waste plastics are usually mixed and pressed by stirring. Some waste plastics with high recycling rate are also heated and granulated by rubbing mechanism to make the granulated plastics more stable during transportation.

[0003] According to the publication (announcement) number: CN116585976B, published (announced) on December 5, 2023, a kind of granulating and polishing integrated machine is disclosed, which comprises a container for loading material and a plurality of rubbing pill assemblies located in the container for stirring, so that the rod on the rubbing pill assembly is arranged circumferentially to stir and rub the material.

[0004] In the prior art including the above-mentioned patent, during the rotating and rubbing process of adding waste plastics into the cylinder, due to the different shapes of the heated waste plastics, the use of multiple rod stirring treatment will also make the plastics scattered, making it difficult to form the plastics. Using the rolling and extruding method of the cylinder side wall, the waste plastics are stacked and stirred inefficiently, resulting in low waste plastics granulation effect. UTILITY MODEL CONTENT

[0005] The utility model aims to provide a kind of plastic particle rubbing mechanism and granulator, to solve the problems generated above.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A kind of plastic particle rubbing mechanism and granulator, comprising an outer cylinder provided with rubbing area, further comprising an inner cylinder reversely rotating with the outer cylinder, the minimum distance between the outer side wall of the inner cylinder and the inner side wall of the outer cylinder is provided with extrusion area;

[0008] The lower pressing area matched with the extrusion area is arranged between the end face of the inner cylinder and the bottom of the outer cylinder.

[0009] Preferably, a discharge port is formed on the outer cylinder.

[0010] Preferably, a plurality of through holes are formed on the inner cylinder, which are equidistantly arranged and communicated with the extrusion area.

[0011] Preferably, an opening is further formed on the inner cylinder, which is communicated with the outer cylinder.

[0012] Preferably, a stand is fixedly installed in the inner cylinder, and a threaded stud is rotatably arranged on the stand for lifting the inner cylinder.

[0013] Preferably, the stud end is fixedly provided with a connecting piece connected with the column.

[0014] Preferably, the inner cylinder port is provided with a driving ring.

[0015] Preferably, the driving ring is fixedly provided with a connecting frame outside the column.

[0016] Preferably, the connecting frame is provided with a movable slot matched with the stud lifting, and the connecting frame is further provided with a connecting ring.

[0017] A plastic particle granulator comprising the plastic particle rubbing granulating mechanism.

[0018] In the above technical solution, the plastic particle rubbing granulating mechanism and the granulator have the following beneficial effects: the waste plastic is self-pressed and rubbed in the rubbing area, the waste plastic is contained in the pressing area formed by the outer lateral wall of the inner cylinder during the process, the waste plastic is reversely pressed by the inner cylinder, the waste plastic is more obviously curled and rubbed, the waste plastic can also be located on the inclined surface of the rubbing area, i.e. is pressed at the position of the lower pressing area, so that the waste plastic is pressed in a larger area, and the efficiency of the waste plastic rubbing granulating is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0020] Figure 1 A rubbing outer cylinder and inner cylinder, a driving ring, and a stud assembly schematic diagram provided by the embodiments of the present application;

[0021] Figure 2 An outer cylinder and inner cylinder assembly schematic diagram provided by the embodiments of the present application;

[0022] Figure 3 A rubbing outer cylinder and inner cylinder, a driving ring, and a stud assembly side sectional view schematic diagram provided by the embodiments of the present application;

[0023] Figure 4 A driving ring and stud explosion schematic diagram provided by the embodiments of the present application.

[0024] Explanation of reference signs:

[0025] 1, outer cylinder; 11, discharge port; 12, rubbing area; 2, inner cylinder; 21, opening; 22, through hole; 23, column; 31, extrusion area; 32, lower pressing area; 4, driving ring; 41, connecting frame; 42, movable groove; 43, connecting ring; 5, stud; 51, connecting piece. DETAILED DESCRIPTION

[0026] In order to make the technical personnel in the art better understand the technical scheme of the utility model, the utility model will be further described in detail below with reference to the drawings.

[0027] As Figures 1-4 shown, a plastic particle rubbing mechanism and a granulator, comprising an outer cylinder 1 provided with a rubbing area 12, further comprising an inner cylinder 2 reversely rotating with the outer cylinder 1, the inner cylinder 2 is provided with an extrusion area 31 at the minimum distance between the outer side wall and the inner side wall of the outer cylinder 1.

[0028] The inner cylinder 2 end face and the outer cylinder 1 bottom are provided with a lower pressing area 32 matched with the extrusion area 31.

[0029] Specifically, the outer cylinder 1 bottom outer side wall is fixedly installed with ring teeth, which is engaged and driven with the existing technology of gear 220V power supply motor, and the motor and the engagement and driving mode are not described here.

[0030] Further, the extrusion area 31 is located at the lowest position of the inclined surface of the rubbing area 12, and the lower pressing area 32 is located at the position where the inner cylinder 2 bottom surface contacts the waste plastic, and the high position of the inner cylinder 2 bottom surface is higher than the height of the upward accumulation of waste plastic, so that all waste plastics can be pressed by the extrusion area 31.

[0031] By setting the outer cylinder 1 at an angle with the horizontal plane, the waste plastic in the rubbing area 12 is self-pressed and rubbed into shape, and the extrusion area 31 formed by the outer side wall of the inner cylinder 2 is used to accommodate the waste plastic, so that the waste plastic is reversely pressed by the inner cylinder 2, so that the waste plastic is more obviously curled and rubbed, and the waste plastic can also be located on the inclined surface of the rubbing area 12, that is, at the position of the lower pressing area 32, so that the waste plastic is subjected to more rubbing area, improving the efficiency of the waste plastic rubbing and forming.

[0032] As a further embodiment of the utility model, the outer cylinder 1 is provided with a discharge port 11.

[0033] Specifically, the discharge port 11 is provided with a door plate (as Figure 3 shown by the dashed line) for opening and closing.

[0034] Through the discharge port 11, the formed waste plastic particles can be easily discharged, and the outer cylinder 1 will not leak during rotation.

[0035] As further provided by the utility model, a plurality of through holes 22 are arranged equidistantly on the inner cylinder 2 and are communicated with the extrusion area 31.

[0036] Specifically, the through holes 22 are arranged equidistantly vertically on the side wall of the inner cylinder 2, and one vertical row is a group, and a plurality of groups are arranged equidistantly, and a plurality of groups of through holes 22 are arranged equidistantly in a column, and a plurality of columns are arranged equidistantly on the side wall of the inner cylinder 2, and the flat side wall of the inner cylinder 2 is left between adjacent columns for pressing the waste plastic.

[0037] The waste plastic is pressed through the position on the outer side wall of the inner cylinder 2 where the through hole 22 is not arranged, so that the waste plastic is conveniently rolled, and the plurality of through holes 22 can also make the waste plastic extruded into the inner cylinder 2 from the through hole 22, so that the waste plastic is segmented or granulated by the through hole 22, and then the segmented or granulated waste plastic is subjected to secondary rolling treatment by the inner side wall of the inner cylinder 2, so that the diversity of the waste plastic rolling is realized.

[0038] As further provided by the utility model, an opening 21 is further arranged on the inner cylinder 2 and is communicated with the outer cylinder 1.

[0039] Specifically, the opening 21 is located at a flat position on the side wall of the inner cylinder 2.

[0040] The opening 21 can shovel part of the waste plastic in the extrusion area 31, so as to share the work load of the extrusion area 31, and the waste plastic shovelled into the inner cylinder 2 can also enter the through hole 22 reversely under the action of gravity and extrusion force, so that the segmented or granulated waste plastic returns to the extrusion area 31 for treatment, and the efficiency of the waste plastic granulation is higher.

[0041] As further provided by the utility model, a stand 23 is fixedly installed in the inner cylinder 2, and a stud 5 for lifting the inner cylinder 2 is rotatably arranged on the stand 23.

[0042] Specifically, the stand 23 is located at the axis of the inner cylinder 2, and the stud 5 is connected with a general frame body (prior art, not described here) for installing the outer cylinder 1 and the inner cylinder 2, and is connected in a threaded manner.

[0043] The stud 5 drives the stand 23 to move vertically in the direction perpendicular to the slope of the outer cylinder 1 in a threaded connection, so as to increase the height of the pressing area 32, and to adapt to more waste plastic in the outer cylinder 1.

[0044] As further provided by the utility model, a connecting piece 51 connected with the stand 23 is fixedly installed at the end of the stud 5.

[0045] Specifically, the connecting piece 51 is in the shape of a hammer with an extra protrusion, and the extra protrusion is embedded in the stand 23 for rotation.

[0046] The column 23 and the stud 5 are individually rotationally connected by the connecting piece 51, so that the stud 5 can be responsible for pulling the column 23 to adjust the pressing height.

[0047] As further provided by the utility model, the inner cylinder 2 is provided with a driving ring 4.

[0048] Specifically, the driving ring 4 is fixedly installed with a ring-shaped rack on the outer wall, and the ring-shaped rack is also engaged and driven by a 220V gear motor in the prior art, and the motor and the engagement and driving mode are not described herein.

[0049] The ring-shaped rack on the driving ring 4 can slide axially, and the purpose is to adapt to the engagement and driving of the inner cylinder 2 after being moved upward, so as to ensure the normal rotation of the inner cylinder 2.

[0050] As further provided by the utility model, the driving ring 4 is fixedly installed with a connecting frame 41 outside the column 23.

[0051] Specifically, the driving ring 4 and the inner cylinder 2 are detachably connected by bolts and nuts.

[0052] The reinforcing arm welded on the connecting frame 41 and the driving ring 4 are welded, so that the connecting frame 41 bears the gravity during the rotation of the inner cylinder 2, and the stability of the rotation of the inner cylinder 2 is ensured.

[0053] As further provided by the utility model, the connecting frame 41 is provided with a movable slot 42 matched with the lifting of the stud 5.

[0054] Specifically, the total frame body is installed with a limiting sleeve embedded in the ring-shaped movable slot 42 and clamped, and the purpose is to provide guidance and limiting for the stable circumferential rotation of the connecting frame 41.

[0055] The movable slot 42 can be adapted and clamped by the connecting frame 41 after being moved upward, so as to ensure the stability of the movement of the connecting frame 41.

[0056] As further provided by the utility model, the connecting frame 41 is further provided with a connecting ring 43.

[0057] Specifically, the connecting frame 41 is welded with a spring at the upper end, and the connecting ring 43 is welded to the other end of the spring, and the connecting ring 43 and the total frame body are in contact with each other during rotation.

[0058] The connecting ring 43 provides a spring connection mode, which is convenient for the spring to store energy to adapt to the upward movement of the inner cylinder 2, and can also replace the direct contact between the spring and the total frame body during rotation to cause wear.

[0059] Working principle: through the oblique outer cylinder 1 and horizontal plane keep predetermined angle, make waste plastics in the rubbing area 12 self extrusion rubbing forming, in the process, the extrusion area 31 formed by the outer side wall of the inner cylinder 2 contains waste plastics, so that the waste plastics are subjected to the reverse pressure of the inner cylinder 2, so that the waste plastics curling rubbing is more obvious, at the same time, the waste plastics can also be located on the inclined plane of the rubbing area 12, that is, in the position of the lower pressing area 32 is pressed, and the plurality of through holes 22 can also make the waste plastics extrude into the inner cylinder 2 from the through hole 22, so that the through hole 22 carries out the segment or granulation of the waste plastics, and then the inner side wall of the inner cylinder 2 carries out the secondary rubbing treatment of the segment or granular waste plastics.

[0060] The above only describes certain exemplary embodiments of the present application by way of illustration, without doubt, for those skilled in the art, without departing from the spirit and scope of the present application, the described embodiments can be modified in various ways. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the present application.

Claims

1. A plastic pelletizing mechanism, comprising an outer cylinder (1) having a pelletizing zone (12), characterized in that, It also includes an inner cylinder (2) that rotates in the opposite direction to the outer cylinder (1), and a compression zone (31) is provided at the minimum distance between the outer side wall of the inner cylinder (2) and the inner side wall of the outer cylinder (1); A pressing area (32) that cooperates with the extrusion area (31) is provided between the end face of the inner cylinder (2) and the bottom of the outer cylinder (1).

2. The plastic pelletizing mechanism according to claim 1, characterized in that, The outer cylinder (1) is provided with a discharge port (11).

3. The plastic pelletizing mechanism according to claim 1, characterized in that, The inner cylinder (2) has multiple through holes (22) arranged at equal intervals and connected to the extrusion zone (31).

4. The plastic pelletizing mechanism according to claim 1, characterized in that, The inner cylinder (2) is also provided with an opening (21) that communicates with the outer cylinder (1).

5. A plastic pelletizing mechanism according to claim 1, characterized in that, A column (23) is fixedly installed in the inner cylinder (2), and a stud (5) for lifting the inner cylinder (2) is rotatably provided on the column (23).

6. A plastic pelletizing mechanism according to claim 5, characterized in that, The end of the stud (5) is fixedly installed with a connector (51) that is connected to the column (23).

7. A plastic pelletizing mechanism according to claim 5, characterized in that, The inner cylinder (2) port is provided with a drive ring (4).

8. A plastic pelletizing mechanism according to claim 7, characterized in that, A connecting frame (41) located outside the column (23) is fixedly installed on the drive ring (4).

9. A plastic pelletizing mechanism according to claim 8, characterized in that, The connecting frame (41) is provided with a movable groove (42) that cooperates with the lifting of the stud (5), and the connecting frame (41) is also provided with a connecting ring (43).

10. A plastic pelletizing machine, characterized in that, The plastic pelletizing mechanism includes any one of claims 1-9.

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