Granulation cutting device of extrusion granulation equipment

Abstract

The utility model discloses a pelletizing device of extrusion pelletizing equipment, which comprises an extrusion die disc, the front part of a conveying rotating shaft is movably connected in a middle through hole of the extrusion die disc, the front end of the conveying rotating shaft extends out of the front end of the middle through hole of the extrusion die disc, and the middle part of the front end surface of the conveying rotating shaft is in threaded connection with a fixed screw rod; a knife rest connecting cylinder is fixed to the fixing screw rod, a plurality of threaded connection holes extending in the radial direction are formed in the outer side wall of the rear end of the knife rest connecting cylinder, the screw rod part of a knife connecting rod is connected into the corresponding threaded connection hole in a threaded mode, and a dicing blade is installed on the knife connecting rod; the cutting end of the grain cutting blade is tightly attached to the front end face of the extrusion die disc and faces a corresponding extrusion through hole formed in the extrusion die disc; the cutter connecting rod can be positioned through the positioning rod in the unscrewed state, normal use of the cutter connecting rod is guaranteed, and the cutter connecting rod cannot be unscrewed or fall off continuously, so that the inclination angle between the installed pelletizing blade and the front wall face of the extrusion die disc is guaranteed, and normal cutting use is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to extrusion equipment technical field more specifically relates to a kind of pelletizing device of extrusion granulation equipment. BACKGROUND

[0002] The existing extrusion granulation production enterprise in the pelletizing process of extrusion granulation, generally use the cutting form of multiple-rotating cutter, cutter edge is to the material that comes out in the extrusion through-hole of extrusion die plate and is cut, however, this cutter is to the front wall of extrusion die plate and is cut in the form of certain angle or perpendicular, its cutting angle cannot be changed, is determined by the angle of rotation when cutter connecting rod is screwed on the cutter holder on rotating shaft, however, in order to ensure the accuracy of angle, the tightness of cutter connecting rod screwing in corresponding screw hole of cutter holder will be affected, i.e., when it is tightened, it can not guarantee that the angle between the subsequent installed blade and the front wall of extrusion die plate meets the installation requirements, at this time, only the cutter connecting rod can be loosened, the inclination angle is changed, however, once loosened, it cannot guarantee that cutter connecting rod is connected firmly during subsequent operation, is prone to looseness, even falls off, affects normal pelletizing processing. SUMMARY

[0003] The utility model aims at overcoming the insufficient of prior art, provide a kind of pelletizing device of extrusion granulation equipment, its cutter connecting rod can be positioned by positioning rod in loosened state, ensure its normal use, it cannot continue to loosen or fall off, to ensure the inclination angle between the installed pelletizing blade and the front wall of extrusion die plate, ensure normal cutting use.

[0004] The utility model solves the technical problem of the scheme:

[0005] A kind of pelletizing device of extrusion granulation equipment, including extrusion die plate, the front part of conveying rotating shaft is movably connected in the middle part through hole of extrusion die plate, the front end of conveying rotating shaft extends the front end of the middle part through hole of extrusion die plate, fixed screw is screwed in the middle part of the front end face of conveying rotating shaft, fixed screw is fixed with cutter holder connecting cylinder, multiple radial extension screw holes are formed on the rear end outer side wall of cutter holder connecting cylinder, screw rod portion of cutter connecting rod is screwed in corresponding screw hole, pelletizing blade is installed on cutter connecting rod, and the cutting end of pelletizing blade is tightly attached to the front end face of extrusion die plate and is against corresponding extrusion through-hole formed on extrusion die plate;

[0006] The inner end of the cutter connecting rod is formed with spline protruding portion, and the middle part of the inner end face of the spline protruding portion is formed with screw rod portion.

[0007] The outer side wall of the tool holder connecting cylinder at the front part of the tool connecting rod is fixed with a connecting block, a positioning rod is installed on the connecting block, the rear end of the positioning rod is shaped into a limiting sheet, and the limiting sheet is inserted into one of the insertion slots of the spline groove formed on the outer side wall of the corresponding spline protruding part.

[0008] The rear end face of the tool connecting rod is a plane, two horizontal plate parts are shaped on one side of the pelletizing blade, the horizontal plate parts are pressed against the rear end face of the corresponding tool connecting rod, a threaded hole is shaped on the rear end face of the tool connecting rod between the two horizontal plate parts, the threaded rod part of the locking bolt is screwed into the corresponding threaded hole, the rotating part of the locking bolt is pressed against the rear end face of the two horizontal plate parts, and the threaded rod part of the locking bolt is between the two horizontal plate parts.

[0009] The middle part of the two horizontal plate parts is shaped into a waist-shaped adjusting through hole, and two guide protrusions are shaped on the rear end face of the tool connecting rod and are inserted into the corresponding waist-shaped adjusting through hole.

[0010] The prominent effect of the utility model is:

[0011] Compared with the prior art, the tool connecting rod can be positioned through the positioning rod in a loosened state, normal use is ensured, the tool connecting rod cannot be loosened continuously or fall off, and therefore the inclination angle between the installed pelletizing blade and the front wall face of the extrusion die disc is ensured, and normal cutting use is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a partial structure schematic view of the utility model;

[0013] Figure 2 is Figure 1 a partial enlarged view of

[0014] Figure 3 is a partial front view of the utility model;

[0015] Figure 4 is a partial structure schematic view of the pelletizing blade;

[0016] Figure 5 is a partial structure schematic view of another part of the pelletizing blade. DETAILED DESCRIPTION

[0017] Embodiment, see as Figures 1 to 5 shown, a pelletizing device of an extrusion granulation equipment, including extrusion die disc 10, the front part of conveying shaft 11 is movably connected in the middle part through hole of extrusion die disc 10, the front end of conveying shaft 11 is stretched out the front end of the middle part through hole of extrusion die disc 10, the above structure is the prior structure, and the conveying shaft 11 is the rotating shaft in the extrusion cylinder, and when extruding, conveying shaft 11 is just rotating.

[0018] Further, the front end surface of the conveying shaft 11 is screwed with a fixed screw rod 20, the fixed screw rod 20 is fixed with a cutter holder connecting cylinder 30, the rear end of the outer side wall of the cutter holder connecting cylinder 30 is formed with a plurality of radially extending screw holes, the screw rod part of the cutter connecting rod 31 is screwed in the corresponding screw hole, the cutter connecting rod 31 is installed with a cutting blade 40, the cutting end of the cutting blade 40 is tightly attached to the front end surface of the extrusion die disc 10 and faces the corresponding extrusion through hole 12 formed on the extrusion die disc 10;

[0019] Wherein, the front end surface of the extrusion die disc 10 is fixed with an annular plate, the middle part of the inner side wall of the annular plate is formed with a forwardly extending guide sleeve body, all the cutting blades 40 are in the guide sleeve body, and all the extrusion through holes 12 face the middle part through hole of the guide sleeve body.

[0020] Further, the inner end of the cutter connecting rod 31 is formed with a spline protruding part 32, the middle part of the inner end surface of the spline protruding part 32 is formed with a screw rod part;

[0021] The outer side wall of the cutter holder connecting cylinder 30 at the front part of the cutter connecting rod 31 is fixed with a connecting block 33, the connecting block 33 is installed with a positioning rod 34, the rear end of the positioning rod 34 is formed with a limiting sheet 341, the limiting sheet 341 is inserted into one of the spline grooves formed on the outer side wall of the corresponding spline protruding part 32.

[0022] The connecting block 33 is formed with a center through hole, the positioning rod 34 is inserted into the center through hole, the outer side wall of the positioning rod 34 is formed with an external thread, the middle part of the positioning rod 34 is inserted into the center through hole, two locking nuts 35 are screwed on the positioning rod 34, and the connecting block 33 is clamped between the corresponding two locking nuts 35.

[0023] This structure makes it possible to rotate the cutter connecting rod 31 as needed during use, so that the cutting angle between the blade edge of the cutting blade 40 thereon and the front end surface of the extrusion die disc 10 meets the actual use needs, then the locking nut 35 at the inner end is loosened, the positioning rod 34 moves backward, the limiting sheet 341 is inserted into one of the spline grooves formed on the outer side wall of the corresponding spline protruding part 32, positioning is achieved, and the corresponding locking nut 35 is loosened, at this time, the cutter connecting rod 31 will not rotate again, and the cutting angle between the blade edge of the cutting blade 40 and the front end surface of the extrusion die disc 10 is fixed, ensuring normal cutting.

[0024] Further, the rear end face of the cutter connecting rod 31 is a plane, one side of the cutting blade 40 is formed with two horizontal plate portions 41, the horizontal plate portions 41 are pressed against the rear end face of the corresponding cutter connecting rod 31, the rear end face of the cutter connecting rod 31 between the two horizontal plate portions 41 is formed with a threaded hole, the threaded portion of the locking bolt 1 is screwed in the corresponding threaded hole, the rotating portion of the locking bolt 1 is pressed against the rear end face of the two horizontal plate portions 41, and the threaded portion of the locking bolt 1 is between the two horizontal plate portions 41.

[0025] The middle part of the two horizontal plate portions 41 is formed with a waist-shaped adjusting through hole 411, and the rear end face of the cutter connecting rod 31 is formed with two guide protrusions 311, the guide protrusions 311 are inserted into the corresponding waist-shaped adjusting through holes 411.

[0026] The above structure makes it possible to loosen the locking bolt 1, then, the cutting blade 40 can be moved, the guide protrusions 311 are inserted into the corresponding waist-shaped adjusting through holes 411 to realize movement guidance, and after adjustment is completed, the locking bolt 1 is tightened, and the adjustment is convenient.

[0027] Further, the fixed screw rod 20 is screwed with an outer limiting sleeve body 21, the rear end face of the outer limiting sleeve body 21 is pressed against the front end face of the conveying rotating shaft 11, the front end face of the fixed screw rod 20 is screwed with a pressing bolt 22 in the middle part, the threaded portion of the pressing bolt 22 is inserted with a pressing piece 23, and the pressing piece 23 is clamped between the rotating portion of the pressing bolt 22 and the front end face of the outer limiting sleeve body 21.

[0028] The outer limiting sleeve body 21 is screwed with a cutter holder connecting cylinder 30 and an outer nut 24, and the cutter holder connecting cylinder 30 is clamped between the front end face of the radially extending portion formed on the rear end outer side wall of the outer limiting sleeve body 21 and the outer nut 24.

[0029] Finally, it should be pointed out that the above embodiments are only relatively representative examples of the present application. Obviously, the present application is not limited to the above embodiments, and there can be many variations. Any simple modification, equivalent change and modification made according to the technical essence of the present application to the above embodiments shall be considered to fall within the protection scope of the present application.

Claims

1. A pelletizing device for an extrusion granulation apparatus, comprising an extrusion die disc (10), a front part of a conveying shaft (11) movably connected in a central through hole of the extrusion die disc (10), and a front end of the conveying shaft (11) extending out of the front end of the central through hole of the extrusion die disc (10), characterized in that: The front end surface of the conveying shaft (11) is screwed with a fixed screw rod (20), the fixed screw rod (20) is fixed with a tool holder connecting barrel (30), a plurality of radially extending screw holes are formed on the rear end outer side wall of the tool holder connecting barrel (30), the screw rod part of the cutter connecting rod (31) is screwed in the corresponding screw hole, the upper end of the cutter connecting rod (31) is provided with a cutting grain blade (40), the cutting end of the cutting grain blade (40) is tightly attached to the front end surface of the extrusion die disc (10) and faces the corresponding extrusion through hole (12) formed on the extrusion die disc (10). The inner end of the cutter connecting rod (31) is formed with a spline protruding part (32), and the inner end surface of the spline protruding part (32) is formed with a screw rod part. The outer side wall of the tool holder connecting barrel (30) at the front part of the cutter connecting rod (31) is fixed with a connecting block (33), the connecting block (33) is installed with a positioning rod (34), the rear end of the positioning rod (34) is formed with a limiting sheet (341), and the limiting sheet (341) is inserted into one of the insertion slots of the spline groove formed on the outer side wall of the corresponding spline protruding part (32).

2. The cutting device of the extrusion granulating apparatus according to claim 1, wherein: The connecting block (33) is formed with a central through hole, the positioning rod (34) is inserted into the central through hole, the outer side wall of the positioning rod (34) is formed with an external thread, the middle part of the positioning rod (34) is inserted into the central through hole, and two locking nuts (35) are screwed on the positioning rod (34).

3. The cutting device of the extrusion granulating apparatus according to claim 1, wherein: The rear end surface of the cutter connecting rod (31) is a plane, one side of the cutting grain blade (40) is formed with two horizontal plate parts (41), the horizontal plate parts (41) are pressed against the rear end surface of the corresponding cutter connecting rod (31), the rear end surface of the cutter connecting rod (31) between the two horizontal plate parts (41) is formed with a screw through hole, the screw rod part of the locking bolt (1) is screwed into the corresponding screw through hole, the rotating part of the locking bolt (1) is pressed against the rear end surface of the two horizontal plate parts (41), and the screw rod part of the locking bolt (1) is between the two horizontal plate parts (41).

4. The cutting device of the extrusion granulating apparatus according to claim 3, wherein: The middle part of the two horizontal plate parts (41) is formed with a waist-shaped adjusting through hole (411), and the rear end surface of the cutter connecting rod (31) is formed with two guide protrusions (311) which are inserted into the corresponding waist-shaped adjusting through holes (411).

5. The dicing device of the extrusion granulating apparatus according to claim 1, wherein: The fixed screw rod (20) is screwed with an outer limiting sleeve body (21), the rear end surface of the outer limiting sleeve body (21) is pressed against the front end surface of the conveying shaft (11), the middle part of the front end surface of the fixed screw rod (20) is screwed with a pressing bolt (22), the screw rod part of the pressing bolt (22) is inserted with a pressing sheet (23), and the pressing sheet (23) is clamped between the rotating part of the pressing bolt (22) and the front end surface of the outer limiting sleeve body (21).

6. The cutting device of the extrusion granulating apparatus according to claim 5, wherein: The outer limiting sleeve body (21) is screwed with the tool holder connecting barrel (30) and an outer nut (24), and the tool holder connecting barrel (30) is clamped between the front end surface of the radially extending part formed on the rear end outer side wall of the outer limiting sleeve body (21) and the outer nut (24).

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