一种塑料母料颗粒物筛料设备

Abstract

本实用新型公开了一种塑料母料颗粒物筛料设备，涉及塑料母料颗粒加工技术领域，包括环形底壳、筛框更换单元和筛分驱动单元。本实用新型具有可靠的筛框更换单元，升降架与环形底壳采用分体式结构，当需要更换筛框时，液压缸将升降架向上推起，使筛框露出，此时旋下固定螺母，解除对固定脚的固定，随口可将筛框向上从安装支杆处移出，从而能够便捷地对筛框进行更换；且具有可靠的筛分驱动单元，连接卡环与环形卡槽之间的间隙能够支持基板进行晃动，由于环形卡槽为椭圆形结构，因此在轴承做水平圆周运动时，能够调动基板进行圆周晃动，进而带动上侧的筛框进行晃动筛分。

Claims

1. A plastic masterbatch granule screening apparatus, characterized by: It includes an annular bottom shell (1), a screen frame replacement unit (3), and a screening drive unit (4). Annular bottom shell (1): It is a cylindrical structure, and a cylindrical lifting frame (2) is installed on top. Screen frame replacement unit (3): includes base plate (31), mounting rod (34), screen frame (35), limit block (36), fixing foot (37), fixing nut (38) and lifting frame (2). Four hydraulic cylinders (39) are embedded in the inner wall of the annular bottom shell (1). The four hydraulic cylinders (39) are arranged diagonally in a square. The extension and retraction ends of the hydraulic cylinders (39) face upward and are fixedly connected to the inner wall of the lifting frame (2). A horizontal base plate (31) is installed inside the upper port of the annular bottom shell (1). The base plate (31) has a disc-shaped structure and is circular at the upper edge. The circumferential array is fixedly connected with four mounting rods (34). The mounting rods (34) are vertically set and a limit block (36) is fixedly connected at the upper position. The screen frame (35) is set above the base plate (31) and four fixed feet (37) are fixedly connected in a circumferential array at the lower position on the outer side. Each fixed foot (37) is correspondingly locked at a mounting rod (34). The limit block (36) supports the lower side of the fixed foot (37). The upper end of the mounting rod (34) is threaded with a fixing nut (38). The fixing nut (38) is pressed against the upper side of the fixed foot (37). Screening drive unit (4): installed inside the annular bottom shell (1).

2. The plastic master batch granule screening device according to claim 1, characterized in that: The screen frame replacement unit (3) also includes a connecting ring (32), an annular groove (33) and a silicone bushing (310). The inner side of the upper port of the annular bottom shell (1) is provided with a double-layered annular groove (33). The outer circumference of the substrate (31) is fixedly connected to the connecting ring (32). The cross-section of the connecting ring (32) is a U-shaped structure with the opening facing outward. The outer end of the U-shaped connecting ring (32) is inserted into the interior of the annular groove (33), and the edge of its inserted end does not contact the inner wall of the deep part of the annular groove (33). The lower part of the interior of the lifting frame (2) is fixedly connected to an annular silicone bushing (310). The inner diameter of the neck of the silicone bushing (310) is equal to the outer diameter of the screen frame (35).

3. The plastic master batch granule screening apparatus according to claim 1, wherein: The screening drive unit (4) includes a motor (42), a crank rocker arm (43), a mounting shaft (44), a bearing (45), and a slot (46). The motor (42) is installed in the center of the annular bottom shell (1). The crank rocker arm (43) is horizontally positioned above the motor (42). The output shaft of the motor (42) faces upward and is fixedly connected to the inside of one end of the crank rocker arm (43). A vertical mounting shaft (44) is fixedly connected to the upper side of the other end of the crank rocker arm (43). A bearing (45) is installed on the outer side of the mounting shaft (44). The mounting shaft (44) is fixedly connected to the inner ring side of the bearing (45). An elliptical slot (46) is opened at the lower end of the base plate (31), and the bearing (45) is installed inside the slot (46).

4. The plastic master batch particle screening apparatus according to claim 3, wherein: The screening drive unit (4) also includes a motor bracket (41) and a fixing block (47). The motor bracket (41) is fixedly connected to the lower part of the annular bottom shell (1). The motor bracket (41) is integrally fixedly connected by a central disc and four connecting rods on the outer side. The four connecting rods are fixedly connected to the inner wall of the annular bottom shell (1). Four fixing blocks (47) are fixedly connected to the lower part of the outer side of the motor (42). Each fixing block (47) is fixedly connected to the motor bracket (41) by bolts.

5. The plastic master batch granule screening apparatus according to claim 1, wherein: It also includes a support bracket (5) and a receiving bucket (6). A main discharge port is provided on the upper part of both sides of the annular bottom shell (1). The main discharge port is flush with the upper end surface of the substrate (31). A receiving bucket (6) is installed on the outer side of the annular bottom shell (1) and adjacent to the main discharge port. An L-shaped support bracket (5) is fixedly connected on the outer side of the annular bottom shell (1) and below the main discharge port. The receiving bucket (6) is inserted into the inside of the support bracket (5) from the side port.

6. The plastic master batch granule screening apparatus according to claim 2, wherein: It also includes an upper discharge pipe (7). A secondary discharge port is provided on both the front and rear sides of the lifting frame (2). An upper discharge pipe (7) is fixedly connected to the outer side of the annular bottom shell (1) and at the position where it connects with the secondary discharge port. The outer end of the upper discharge pipe (7) is bent downwards. The bottom of the inner side of the silicone bushing (310) is an annular slope. The inner ring side of the annular section is higher than the outer ring side. The inner wall of the screen frame (35) is a rounded slope.

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