Granulating device for plastic extruder

Abstract

The pelletizing device for the plastic extruder comprises an outer protective ring, a rotating ring is arranged in the outer protective ring, four connecting plates are evenly and detachably connected to the outer ring wall of the rotating ring, each connecting plate is fixedly connected with a vertical plate, a sliding groove is formed in the middle of the side wall of one side of each vertical plate, a sliding block is slidably connected into the sliding groove, and the sliding block is fixedly connected with the rotating ring. The side, away from the sliding groove, of the sliding block is connected with a cutting knife, an adjusting groove is formed in the middle of one end of the cutting knife in a penetrating mode, a long adjusting groove is formed in one end of the cutting knife, a tightening bolt is inserted into the adjusting groove in a penetrating mode, and therefore the cutting knife can be driven to slide back and forth on the tightening bolt along the adjusting groove. The extending length of the cutting knife is adjusted so as to adapt to different plastic particle production requirements, angle adjustment can be achieved through rotation of the adjusting groove along the tightening bolt, and therefore the cutting knife can be adjusted to be in a corresponding state according to actual requirements. And the flexibility of structure application and the adaptive capacity in practical application are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic pelletizing equipment, in particular to a pelletizing device for a plastic extruder. Background Art

[0002] Plastic granules are the main raw material for many plastic products. Because plastic granules are easier to melt and facilitate extrusion production, raw material manufacturers will prepare plastics into granules. Plastic granules are mostly produced through an extruder combined with a pelletizing structure, which is also one of the current mainstream production methods.

[0003] The pelletizing equipment is a cutting knife controlled by a motor that rotates at high speed to cut the extruded plastic. The cutter heads on the current pelletizing equipment are mostly fixed. Due to the size of the cutter head, they cannot be adjusted, especially the angle problem. Because the state of the pellets cut out is different at different angles, a variety of different cutter heads are required to achieve the production of a variety of pellets, which increases production costs. Therefore, a pelletizing device for a plastic extruder is proposed. Utility Model Content

[0004] The technical solution adopted by the utility model to solve the technical problem is: a pelletizing device for a plastic extruder, comprising an outer protective ring, a swivel ring is provided inside the outer protective ring, the outer ring wall of the swivel ring is evenly and detachably connected with four connecting plates, each of the connecting plates is fixedly connected with a vertical plate, a slide groove is provided in the middle of one side wall of the vertical plate, a slider is slidably connected in the slide groove, a cutting knife is connected to the side of the slider away from the slide groove, and an adjustment groove is provided in the middle of one end of the cutting knife.

[0005] As an optimal technical solution of the present invention, a tightening bolt is inserted into the adjustment groove, a screw hole is provided on the side wall of the slider at one end opposite to the tightening bolt, and one end of the tightening bolt is threadedly inserted into the screw hole.

[0006] As a preferred technical solution of the present invention, a stud is rotatably connected in the slide groove, one end of the stud passes through the top side wall of the slide groove and is fixedly connected to the knob, and the slider is threadedly sleeved on the stud.

[0007] As an optimal technical solution of the present invention, the inner ring wall of the rotating ring is evenly fixedly connected with four support plates, and the adjacent ends of the four support plates are fixedly connected with follower columns. One side wall of the outer protective ring is detachably connected with an outer cover, and the middle of one side wall of the outer cover is detachably connected with a driver. The output end of the driver passes through the outer cover and is detachably connected to one end of the follower column, and a discharge port is opened through the bottom side wall of the outer protective ring.

[0008] As an optimal technical solution of the present invention, a slot corresponding to the connecting plate is opened on the outer ring wall of the rotating ring, screws are passed through both ends of the connecting plate, and the bottom end of the connecting plate is inserted into the slot and fixed by screws.

[0009] The utility model has the following advantages: a long adjustment slot is provided at one end of the cutting blade, and a tightening bolt is inserted into the adjustment slot, so that the cutting blade can be driven to slide back and forth on the tightening bolt along the adjustment slot, so as to adjust the length of the cutting blade extended, so as to adapt to different plastic particle production requirements, and the angle can be adjusted by rotating the tightening bolt along the adjustment slot, so that the cutting blade can be adjusted to a corresponding state according to actual needs, thereby increasing the flexibility of structural application and the adaptability in actual application, thus eliminating the need for multiple different cutting blades in reserve, and effectively reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the three-dimensional structure of a preferred embodiment of the utility model;

[0011] Figure 2 This is a schematic diagram of the three-dimensional structure of a swivel according to a preferred embodiment of the present invention;

[0012] Figure 3 It is a schematic diagram of the conversion partial three-dimensional decomposition structure of a preferred embodiment of the utility model.

[0013] Explanation of the accompanying symbols: 1. Outer protective ring; 2. Swivel; 3. Connecting plate; 4. Vertical plate; 5. Outer cover; 6. Driver; 7. Slide; 8. Slider; 9. Cutting knife; 10. Adjusting slot; 11. Tightening bolt; 12. Support plate; 13. Follower column; 14. Slot; 15. Stud. DETAILED DESCRIPTION

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] Please refer to Figure 1-3 The utility model relates to a pelletizing device for a plastic extruder, comprising an outer protective ring 1, a swivel 2 being provided inside the outer protective ring 1, the outer ring wall of the swivel 2 being evenly and detachably connected with four connecting plates 3, each connecting plate 3 being fixedly connected with a vertical plate 4, a slide groove 7 being provided in the middle of a side wall of one side of the vertical plate 4, a slider 8 being slidably connected in the slide groove 7, a cutting knife 9 being connected on the side of the slider 8 away from the slide groove 7, an adjusting groove 10 being provided through the middle of one end of the cutting knife 9, a tightening bolt 11 being inserted into the adjusting groove 10, a screw hole being provided on the side wall of the end of the slider 8 opposite to the tightening bolt 11, and one end of the tightening bolt 11 being threadedly inserted into the screw hole.

[0016] The technical effect of this solution is: when necessary, first reverse the tightening bolt 11 to loosen it, and then push and pull the cutting knife 9 as needed, so that the cutting knife 9 can move on the tightening bolt 11 along the adjusting slot 10, thereby realizing the adjustment of the length of the extended part of the cutting knife 9 itself, and at the same time, the cutting knife 9 can be rotated and adjusted, so as to adjust the cutting knife 9 to a suitable inclination angle. After the adjustment is completed, the tightening bolt 11 is tightened in the forward direction and then the function of tightly clamping the cutting knife 9 is completed, ensuring the stability of the cutting knife 9 itself to avoid affecting the pelletizing operation due to instability. At the same time, two different adjustment methods can be realized through the above operations, thereby increasing the flexibility of equipment application and the adaptability of actual application.

[0017] A stud 15 is rotatably connected in the slide groove 7, one end of the stud 15 passes through the top side wall of the slide groove 7 and is fixedly connected to the knob, and the slider 8 is threadedly sleeved on the stud 15, and the inner ring wall of the swivel 2 is evenly fixedly connected with four support plates 12, and the adjacent ends of the four support plates 12 are fixedly connected with the follower column 13, and one side side wall of the outer guard ring 1 is detachably connected to the outer cover 5, and the middle of one side side wall of the outer cover 5 is detachably connected to the driver 6, and the output end of the driver 6 passes through the outer cover 5 and is detachably connected to one end of the follower column 13, and a discharge port is opened through the bottom side wall of the outer guard ring 1, and a slot 14 corresponding to the connecting plate 3 is opened on the outer ring wall of the swivel 2, and screws are passed through and connected at both ends of the connecting plate 3, and the bottom end of the connecting plate 3 is inserted in the slot 14 and fixed by screws.

[0018] The technical effect of this solution is: turning the knob can drive the stud 15 to rotate synchronously, and through the threaded connection, it can drive the slider 8 to move up and down along the slide groove 7, so that it can be adjusted accordingly according to the extrusion method of the extruder and the position of the discharge port, thereby improving the practicality of the equipment. The swivel 2 itself is a ring structure, which can reduce the burden on the driver 6 and increase the service life of the driver 6. At the same time, it ensures that the swivel 2 always remains at the center of the circle to avoid deviation and cause problems in pelletizing.

[0019] Specifically, when the present invention is used, the extruder extrude the plastic into the outer protective ring 1, and the driver 6 is started in advance to drive the rotating ring 2 to rotate at high speed. As the cutting knife 9 rotates at high speed, the plastic can be cut to form a particle structure, and then the particles are discharged along the discharge port opened at the bottom of the rotating ring 2. Before the formal pelletizing, the slider 8 and the cutting knife 9 are adjusted according to actual needs. First, the stud 15 is rotated to adjust the slider 8 and the cutting knife 9 to a suitable height, and then the tightening bolt 11 is loosened to adjust the extension length and the inclination angle of the cutting knife 9 according to actual needs. After the adjustment is completed, the tightening bolt 11 is tightened, and then the outer cover 5 is connected to the outer protective ring 1 to start the pelletizing operation.

[0020] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

[0021] Other parts of the present invention that are not described in detail belong to the prior art and will not be described in detail here.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pelletizing device for a plastic extruder, comprising an outer protective ring (1), characterized in that: A rotating ring (2) is provided inside the outer protective ring (1), and the outer ring wall of the rotating ring (2) is evenly and detachably connected with four connecting plates (3), each of the connecting plates (3) is fixedly connected with a vertical plate (4), a sliding groove (7) is provided in the middle of one side wall of the vertical plate (4), a slider (8) is slidably connected in the sliding groove (7), a cutting knife (9) is connected to the side of the slider (8) away from the sliding groove (7), and an adjustment groove (10) is provided in the middle of one end of the cutting knife (9).

2. A pelletizing device for a plastic extruder according to claim 1, characterized in that: A tightening bolt (11) is inserted into the adjusting groove (10), and a screw hole is provided on the side wall of the slider (8) opposite to the tightening bolt (11), and one end of the tightening bolt (11) is threadedly inserted into the screw hole.

3. A pelletizing device for a plastic extruder according to claim 1, characterized in that: A stud (15) is rotatably connected in the slide groove (7), one end of the stud (15) passes through the top side wall of the slide groove (7) and is fixedly connected to the knob, and the slider (8) is threadedly sleeved on the stud (15).

4. A pelletizing device for a plastic extruder according to claim 1, characterized in that: Four support plates (12) are evenly and fixedly connected to the inner ring wall of the rotating ring (2), and adjacent ends of the four support plates (12) are fixedly connected to follower columns (13). One side wall of the outer protective ring (1) is detachably connected to an outer cover (5), and a driver (6) is detachably connected to the middle of one side wall of the outer cover (5). The output end of the driver (6) passes through the outer cover (5) and is detachably connected to one end of the follower column (13). A discharge port is provided through the bottom side wall of the outer protective ring (1).

5. A pelletizing device for a plastic extruder according to claim 1, characterized in that: A slot (14) corresponding to the connecting plate (3) is provided on the outer ring wall of the rotating ring (2); screws are passed through and connected to the two ends of the connecting plate (3); the bottom end of the connecting plate (3) is inserted into the slot (14) and fixed by the screws.

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