Anti-blocking PVC (polyvinyl chloride) granulator

Abstract

The utility model belongs to the technical field of granulators, and particularly relates to an anti-blocking PVC (polyvinyl chloride) granulator which is characterized in that a second driving mechanism is arranged at the top of a material tower, a driving shaft of the second driving mechanism extends into the material tower and is connected with a first steering transmission shaft, and a stirring head is hinged to the tail end of the bottom of the first steering transmission shaft; a second steering transmission shaft is hinged to the bottom of the stirring head and is a telescopic steering transmission shaft; a support is arranged on the inner wall of the bottom of the material tower and provided with a rotating shaft, and the top end of the rotating shaft is connected with a second steering transmission shaft. Compared with the prior art, the granulator has the advantages that materials in the material tower can be continuously and stably conveyed into the barrel body through irregular stirring of the stirring head in the material tower and conveying of the materials by the spiral conveying shaft, and blockage is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of granulators, in particular to an anti-blocking type PVC granulator. Background Art

[0002] The screw granulator is a molding machine that can make materials into specific shapes. It is also a common equipment in the PVC plastic processing industry. However, the existing granulators still have defects in actual applications. For example, when adding materials to the barrel, if the slurry is relatively viscous or the particles are large, and there is too much material stored in the feed port, it will cause the material to accumulate in the lower bin position, and even directly block the connection between the barrel and the material tower, affecting the operation of the equipment. It can only be shut down and manually cleaned and restored. Since the cleaning process is time-consuming and labor-intensive, it will affect production capacity. In summary, there is a certain market demand for designing a PVC granulator with anti-blocking function. Summary of the invention

[0003] In view of the above-mentioned deficiencies in the prior art, the utility model provides an anti-blocking PVC granulator to solve the above-mentioned problems.

[0004] The utility model discloses an anti-blocking PVC granulator, comprising a base, a barrel being arranged on the base, a material tower being arranged on the top of one end of the barrel, and an extrusion head being arranged on the other end; a conveying screw connecting the two ends is arranged in the barrel, and a driving mechanism for driving the conveying screw to rotate is arranged, a second driving mechanism is arranged on the top of the material tower, a driving shaft of the second driving mechanism extends into the interior of the material tower and is connected to a first steering transmission shaft, a stirring head is hinged at the bottom end of the first steering transmission shaft, a second steering transmission shaft is hinged at the bottom of the stirring head, and the second steering transmission shaft is a telescopic steering transmission shaft; a bracket is arranged on the inner wall of the bottom of the material tower, a rotating shaft is arranged on the bracket, and the top end of the rotating shaft is connected to the second steering transmission shaft.

[0005] Furthermore, a screw conveying shaft is arranged at the bottom end of the rotating shaft, and the bottom outlet of the material tower is arranged as a cylinder body adapted to the screw conveying shaft.

[0006] Furthermore, a bearing matched with the rotating shaft is arranged on the bracket, and an oil seal corresponding to the bearing is arranged on the bracket.

[0007] Furthermore, the main body of the stirring head is in the shape of a bullet, and the interior of the main body is hollow.

[0008] Furthermore, a plurality of spiral blades are arranged on the outer wall of the stirring head in an axially rotating array.

[0009] Furthermore, a plurality of flow-turbulating blades located below the spiral blades are arranged on the outer wall of the stirring head in an axially rotating array, and the number of the flow-turbulating blades is greater than the number of the spiral blades.

[0010] Furthermore, a plurality of stirring rods extending outward are arranged around the circumference of the second steering transmission shaft.

[0011] Compared with the prior art, the granulator is provided with a stirring head in the material tower. Through the connection between the first steering transmission shaft and the second steering transmission shaft, the reduction motor drives the stirring head to rotate, and the stirring head gradually separates from the axis of the drive shaft under the influence of centrifugal force, and after cooperating with the stirring rod on the second steering transmission shaft, it rotates irregularly around the axis in the material tower for stirring; in addition, as the stirring head rotates, its spiral blades and spoiler blades generate irregular turbulence, thereby enhancing the stirring range of the stirring head; in summary, through the irregular stirring of the stirring head in the material tower and the conveying of the material by the spiral conveying shaft, the material inside the material tower can be continuously and stably conveyed into the cylinder without clogging. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the internal structure of the material tower after cutting;

[0014] Figure 3 It is a schematic diagram of the structure of the stirring head.

[0015] In the figure: 1. base; 2. barrel; 3. material tower; 4. extruder; 5. drive mechanism; 7. second drive mechanism; 8. first steering transmission shaft; 9. stirring head; 10. second steering transmission shaft; 11. bracket; 12. rotating shaft; 13. screw conveyor shaft; 14. discharge barrel; 15. bearing; 16. spiral blade; 17. spoiler blade; 18. stirring rod. DETAILED DESCRIPTION

[0016] In order to better understand the present invention, Figures 1 to 3 The implementation modes of the present utility model will be explained in detail.

[0017] It should be noted that the directions "front, back, left, right, up, down" mentioned in the text are all based on Figure 1 The directions of “front, back, left, right, up, and down” are used as the basis.

[0018] See also Figure 1The utility model is a kind of anti-blocking PVC granulator. The same as the prior art is that the granulator also includes a base 1, a barrel 2 is arranged on the base 1, a material tower 3 is arranged on the top of one end of the barrel 2, and an extruder 4 is arranged on the other end; a conveying screw connecting the two ends is arranged in the barrel 2, and a driving mechanism 5 for driving the conveying screw to rotate is arranged, and the driving mechanism 5 includes a motor and a reducer for increasing the torque of the motor output shaft; in this technology, a structure for preventing the material tower 3 from blocking when the material is dropped is added, as shown in the specific example. Figure 2 As shown in the figure, a second driving mechanism 7 is provided on the top of the material tower 3. Preferably, the second driving mechanism 7 is a reduction motor, the driving shaft of the reduction motor extends into the interior of the material tower 3 and is connected to a first steering transmission shaft 8, a stirring head 9 is hinged at the bottom end of the first steering transmission shaft 8, a second steering transmission shaft 10 is hinged at the bottom of the stirring head 9, and the second steering transmission shaft 10 is a telescopic steering transmission shaft, and the shaft body of the telescopic steering transmission shaft is a spline telescopic shaft; a bracket 11 is provided on the bottom inner wall of the material tower 3, a rotating shaft 12 is provided on the bracket 11, and the top of the rotating shaft 12 is connected to the second steering transmission shaft 10.

[0019] The preferred technical solution in this embodiment is to control the efficiency of the material conveying from the material tower 3 to the cylinder 2, such as Figure 2 As described in the above, a screw conveying shaft 13 is provided at the bottom end of the rotating shaft 12, and the bottom outlet of the material tower 3 is provided as an outlet of the cylinder 2 adapted to the screw conveying shaft 13. By connecting the second driving mechanism 7 to drive the power of the stirring head 9, the stirring head 9 is linked with the screw conveying shaft 13 to ensure that when the material needs to be efficiently conveyed in the cylinder 2, the stirring efficiency of the stirring head 9 is simultaneously improved to avoid material accumulation and blockage.

[0020] The preferred technical solution in this embodiment is as follows Figure 2 As described in, in order to enable smooth rotation, the bracket 11 is provided with a bearing 15 adapted to the rotating shaft 12, and the bracket 11 is provided with an oil seal corresponding to the bearing 15 to prevent fine powder in the material from entering the bearing 15.

[0021] The preferred technical solution in this embodiment is as follows Figure 2 and Figure 3 As shown in , the main body of the stirring head 9 is in the shape of a bullet; in order to reduce the burden on the second driving mechanism 7, the main body of the stirring head 9 is set to be a weight-reducing structure with a hollow interior.

[0022] The preferred technical solution in this embodiment is as follows Figure 2 and Figure 3 As shown in FIG. 1 , a plurality of spiral blades 16 are arranged on the outer wall of the stirring head 9 in an axially rotating array.

[0023] The preferred technical solution in this embodiment is to increase the influence range of the stirring head 9 during self-rotation stirring. Figure 2 and 3 As shown in the figure, a plurality of spoiler blades 17 located below the spiral blades 16 are arranged on the outer wall of the mixing head 9 in an axially rotating array, and the number of the spoiler blades 17 is greater than the spiral blades 16; when the mixing head 9 rotates and guides the material downward in a spiral through the spiral blades 16, it encounters the rear spoiler blades 17 at the bottom, thereby generating turbulence, thereby increasing the overall influence range of the mixing head 9 and improving its mixing ability.

[0024] The preferred technical solution in this embodiment takes into account that the material pressure at the bottom of the material tower 3 is relatively high and is more prone to accumulation and clogging. Figure 2 As shown in FIG, a plurality of stirring rods 18 extending outward are arranged around the circumference of the second steering transmission shaft 10 .

[0025] The working method and principle of the utility model are as follows: when the second driving mechanism 7 starts to operate, its driving shaft drives the mixing head 9 to rotate through the second steering transmission shaft 10, and after the mixing head 9 rotates, the second steering transmission shaft 10 drives the rotating shaft 12 and its screw conveying shaft 13 to rotate. As the speed of the second driving mechanism 7 gradually increases, the mixing head 9 exerts a pulling force on the second steering transmission shaft 10 under the influence of its centrifugal force, so that the second steering transmission shaft 10 extends and gradually separates from the axis of the driving shaft, and finally the mixing head 9 will be as follows Figure 2 As shown in the figure, after completely separating from the axis of the drive shaft, it rotates around the axis. Due to the presence of materials in the material tower 3, under the influence of the material resistance and the rotation speed of the second driving mechanism 7, the stirring head 9 and the stirring rod 18 on the second steering transmission shaft 10 perform irregular rotation stirring on the materials in the material tower 3; at the same time, as the stirring head 9 rotates, the irregular turbulence generated by its spiral blades 16 and spoiler blades 17 further enhances the stirring range of the stirring head 9. Finally, through the irregular stirring of the stirring head 9 in the material tower 3 and the conveying of the material by the spiral conveying shaft 13, the material inside the material tower 3 can be continuously and stably conveyed to the cylinder 2.

[0026] In the description of the present utility model, it should be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In the description of the present utility model, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be a direct connection, or it can be an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0027] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A blockage-proof PVC granulator, comprising a base (1), a barrel (2) is arranged on the base (1), a material tower (3) is arranged on the top of one end of the barrel (2), and an extruder (4) is arranged on the other end; a conveying screw connecting the two ends is arranged in the barrel (2), and a driving mechanism (5) for driving the conveying screw to rotate is arranged, characterized in that: A second driving mechanism (7) is arranged on the top of the material tower (3), the driving shaft of the second driving mechanism (7) extends into the interior of the material tower (3) and is connected to a first steering transmission shaft (8), a stirring head (9) is hingedly connected to the bottom end of the first steering transmission shaft (8), the bottom of the stirring head (9) is hingedly connected to a second steering transmission shaft (10), and the second steering transmission shaft (10) is a telescopic steering transmission shaft; a bracket (11) is arranged on the inner wall of the bottom of the material tower (3), a rotating shaft (12) is arranged on the bracket (11), and the top end of the rotating shaft (12) is connected to the second steering transmission shaft (10).

2. The anti-blocking PVC granulator as claimed in claim 1, characterized in that: A screw conveying shaft (13) is disposed at the bottom end of the rotating shaft (12), and a bottom outlet of the material tower (3) is disposed as a discharge barrel (14) adapted to the screw conveying shaft (13).

3. The anti-blocking PVC granulator as claimed in claim 2, characterized in that: The bracket (11) is provided with a bearing (15) matched with the rotating shaft (12), and the bracket (11) is provided with an oil seal corresponding to the bearing (15).

4. The anti-blocking PVC granulator as claimed in claim 1, characterized in that: The main body of the stirring head (9) is in the shape of a bullet, and the interior of the main body is hollow.

5. The anti-blocking PVC granulator as claimed in claim 4, characterized in that: A plurality of spiral blades (16) are arranged on the outer wall of the stirring head (9) in an axially rotating array.

6. The anti-blocking PVC granulator as claimed in claim 5, characterized in that: A plurality of flow-disturbing blades (17) located below the spiral blades (16) are arranged on the outer wall of the stirring head (9) in an axially rotating array, and the number of the flow-disturbing blades (17) is greater than that of the spiral blades (16).

7. The anti-blocking PVC granulator as claimed in claim 1, characterized in that: A plurality of stirring rods (18) extending outward are arranged in the circumference of the second steering transmission shaft (10).

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