Involute curved surface granulation cutter and file-shaped hole cylinder type extrusion granulator

Abstract

The utility model discloses an involute curved surface granulation cutter and file-shaped hole barrel type extrusion granulator, and relates to the technical field of granulation equipment. The utility model solves the problems that the existing extrusion granulator is large in volume, low in yield, high in power consumption and inconvenient to maintain, connect and clean. A reverser is arranged in a machine shell, the vertical section of the reverser and the machine shell are coaxially arranged, a main shaft is rotatably installed in the vertical section of the reverser, a file-shaped net and a file-shaped net installation base are sequentially installed at the top end of the vertical section of the reverser from top to bottom, and an involute granulating cutter set is rotatably installed in the file-shaped net. One end of the chain transmission mechanism is connected with the middle part of the main shaft, and the other end of the chain transmission mechanism is connected with the driving motor. The extrusion granulator is used for reducing the volume of the extrusion granulator, improving the productivity and reducing the energy consumption, realizes direct connection between the granulator and other equipment, saves investment and maintenance of other auxiliary equipment, and is more convenient to clean after being used.

Description

Technical Field

[0001] The utility model relates to the technical field of granulation equipment, in particular to an involute curved surface granulation knife plus a file-shaped hole barrel type extrusion granulator. Background Art

[0002] Existing extrusion pelletizers are large, have low output, and consume high power. Furthermore, their transmission mechanisms are extremely complex, utilizing multiple sets of concentric and hollow shafts to distribute power. This results in a complex transmission structure and inconvenient maintenance. Furthermore, traditional structures are inconvenient for connecting to other equipment, requiring an intermediate transition device to achieve connection. Furthermore, cleaning after use is also difficult. Utility Model Content

[0003] The purpose of the utility model is to solve the problems of the existing extrusion granulator, such as large volume, small output, high power consumption, inconvenience in maintenance, connection and cleaning, and thus provide an extrusion granulator with an involute curved surface granulating knife and a file-shaped hole barrel.

[0004] The technical solution of the utility model is:

[0005] An involute curved surface pelletizing knife plus file-shaped hole barrel extrusion pelletizing machine, which includes a casing 1, a commutator 2, a file-shaped net 3, a file-shaped net mounting seat 4, an involute pelletizing knife group 5, a main shaft 6, a fixing seat 7, a chain transmission mechanism 8 and a driving motor 9. The casing 1 is a rotating body casing with an upper opening, and a discharge port is opened at the bottom of the casing 1. A commutator 2 is arranged inside the casing 1. The commutator 2 is a T-shaped sleeve structure. The vertical section of the commutator 2 is coaxially arranged with the casing 1. A vertical coaxially arranged main shaft 6 is rotatably mounted inside the vertical section of the commutator 2. One end of the horizontal section of the commutator 2 is connected to the vertical section of the commutator 2. The other end of the horizontal section of the commutator 2 passes through the side wall of the casing 1 and is connected to the fixed seat 7. The top of the vertical section of the commutator 2 is installed with a horizontally arranged crushed net mounting seat 4. The crushed net mounting seat 4 is coaxially installed with the top crushed net 3. The crushed net 3 is a sleeve-shaped structure. The involute granulating knife group 5 is rotatably installed inside the crushed net 3. The involute granulating knife group 5 is connected to the top of the main shaft 6. A chain transmission mechanism 8 is provided inside the horizontal section of the commutator 2. One end of the chain transmission mechanism 8 is connected to the middle part of the main shaft 6, and the other end of the chain transmission mechanism 8 is connected to the drive motor 9. The drive motor 9 is installed on the fixed seat 7.

[0006] Furthermore, the fixing seat 7 includes a supporting vertical plate 7-1, a motor mounting plate 7-2, two triangular side plates 7-3 and two supporting plates 7-4. The supporting vertical plate 7-1 is vertically arranged on the side of the casing 1. A rectangular through hole for the chain transmission mechanism 8 to pass through is opened on the supporting vertical plate 7-1. Two triangular side plates 7-3 are vertically symmetrically arranged on the side of the supporting vertical plate 7-1 away from the casing 1. Two supporting plates 7-4 are respectively provided at the bottom of the two triangular side plates 7-3. The bottom ends of the triangular side plates 7-3 are connected to the top ends of the supporting plates 7-4. The ends of the two supporting plates 7-4 are connected to the top ends of the two supporting plates 7-4. They are all connected to the motor mounting plate 7-2, and the inner sides of the upper surfaces of the two support plates 7-4 are processed with sliding grooves. The motor mounting plate 7-5 is horizontally arranged between the two triangular side plates 7-3, and the two ends of the motor mounting plate 7-5 are slidingly connected to the sliding grooves of the two support plates 7-4 respectively. A motor shaft mounting hole is processed in the middle of the upper surface of the motor mounting plate 7-5, and the drive motor 9 is vertically arranged above the motor mounting plate 7-2. The shaft of the drive motor 9 passes through the motor shaft mounting hole, and the connecting flange of the drive motor 9 is connected to the motor mounting plate 7-5 through multiple connecting elements.

[0007] Furthermore, the chain transmission mechanism 8 includes a driving sprocket 8-1, a chain 8-2 and a driven sprocket 8-3. The driving sprocket 8-1 is installed on the rotating shaft of the driving motor 9, and the driven sprocket 8-3 is installed in the middle of the main shaft 6. The driving sprocket 8-1 is connected to the driven sprocket 8-3 through the chain 8-2.

[0008] Furthermore, the chain transmission mechanism 8 also includes a chain tensioning mechanism 8-4, which is arranged on the side of the chain 8-2. The chain tensioning mechanism 8-4 includes a tensioning inner plate 8-4-1, a tensioning outer plate 8-4-2, a tensioning bolt 8-4-3, a tensioning nut 8-4-4 and an adjusting nut 8-4-5. The tensioning inner plate 8-4-1 is vertically arranged below the two supporting plates 7-4 along the width direction of the supporting vertical plate 7-1. The two ends of the upper surface of the tensioning inner plate 8-4-1 are respectively connected to the lower surfaces of the two supporting plates 7-4. The tensioning inner plate 8-4-1 is processed with an inner plate Threaded hole, the tensioning outer plate 8-4-2 is arranged parallel to the outer side of the tensioning inner plate 8-4-1, and the tensioning outer plate 8-4-2 is processed with an outer plate circular hole, and the outer plate through hole and the inner plate through hole are coaxially arranged, and the screw of the tensioning bolt 8-4-3 passes through the outer plate through hole and the inner plate through hole from the outside to the inside in sequence, and the screw end of the tensioning bolt 8-4-3 is threadedly connected with the tensioning nut 8-4-4, and the adjusting nut 8-4-5 is located between the tensioning inner plate 8-4-1 and the tensioning outer plate 8-4-2, and the middle part of the screw of the tensioning bolt 8-4-3 is threadedly connected with the adjusting nut 8-4-5.

[0009] Furthermore, it also includes an upper cover 10, which includes a circular cover body 10-1, a truncated cone-shaped feed barrel 10-2 and three hanging ears 10-3. The bottom of the circular cover body 10-1 is provided with a cylindrical extension, and the outer side of the cylindrical extension is evenly provided with three hanging ears 10-3 along the circumferential direction. The circular cover body 10-1 is buckled on the upper part of the casing 1, and the inner hole of the cylindrical extension is gap-matched with the outer surface of the casing 1. The truncated cone-shaped feed barrel 10-2 is vertically and coaxially arranged directly above the truncated net 3, and the bottom end of the truncated cone-shaped feed barrel 10-2 is fixedly connected to the cylindrical surface of the inner hole of the circular cover body 10-1.

[0010] Furthermore, it also includes three latch-type clamps 11, which are evenly arranged on the upper outer surface of the casing 1 along the circumferential direction, and the three latch-type clamps 11 correspond one-to-one to the three hanging ears 10-3 respectively.

[0011] Furthermore, the involute granulating knife group 5 includes a conical seat 5-1 and two involute curved surface granulating knives 5-2. The conical seat 5-1 is a conical structure. The upper surface of the conical seat 5-1 is connected to two involute curved surface granulating knives 5-2 arranged in a central symmetrical manner. The involute curved surface granulating knife 5-2 is in the shape of an involute curved surface.

[0012] Furthermore, it also includes a locking nut 13, a conical seat connecting hole is opened in the center of the upper surface of the conical seat 5-1, and a vertically arranged granulator knife connecting threaded hole is opened in the center of the top of the main shaft 6. The conical seat 5-1 is connected to the top of the main shaft 6 through the locking nut 13.

[0013] Furthermore, the frustrated net 3 is formed by rolling a frustrated perforated plate.

[0014] Furthermore, it also includes a main shaft support assembly 12, the main shaft support assembly 12 includes an upper bearing 12-1, a lower bearing 12-2 and a lower stop cover 12-3, the upper and lower ends of the inner hole of the vertical section of the commutator 2 are respectively installed with an upper bearing 12-1 and a lower bearing 12-2, the upper and lower ends of the main shaft 6 are respectively rotatably connected to the vertical section of the commutator 2 through the upper bearing 12-1 and the lower bearing 12-2, an upper retaining ring is provided on the upper part of the upper bearing 12-1, and a lower retaining ring is provided on the lower part of the lower bearing 12-2, both the upper retaining ring and the lower retaining ring are connected to the vertical section of the commutator 2, and a lower stop cover 12-3 is installed at the bottom end of the vertical section of the commutator 2.

[0015] Compared with the prior art, the present invention has the following effects:

[0016] 1. The extrusion granulator of the present invention has a commutator 2 disposed between a fixed base 7 and a housing 1. A chain transmission mechanism 8 is provided between a main shaft 6 and a drive motor 9 for driving the involute granulating cutter group 5. Specifically, the main shaft 6 is connected to a driving sprocket 8-1 via a passive sprocket 8-3 and a chain 8-2. Power is transmitted from the drive motor 9 to the driving sprocket 8-1 and ultimately to the involute granulating cutter group 5. Therefore, compared with existing extrusion granulators, the extrusion granulator of the present invention can reduce its size, increase its production capacity, and reduce energy consumption.

[0017] 2. The fixed seat 7 of the extrusion granulator described in the present invention can be installed on a mobile rack or connected to other equipment, which can realize direct connection between the granulator and other equipment, saving the investment and maintenance of other auxiliary equipment, and has a compact structure and is easy to install.

[0018] 3. The upper cover 10 and the casing 1 of the extrusion granulator described in the utility model are quickly connected by three sets of hanging ears 10-3 and a latch-type clamp 11, the crushed net 3 and the crushed net mounting seat 4 are connected by multiple bolts, and the conical seat 5-1 and the main shaft 6 are connected by a locking nut 13, so that the extrusion granulator is more convenient to clean after use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view of an involute curved surface granulating knife plus a file-shaped hole barrel extrusion granulating machine described in the utility model;

[0020] Figure 2 This is a top view of an involute curved surface granulating knife plus a file-shaped hole barrel extrusion granulator described in the utility model;

[0021] Figure 3 This is an axonometric view of an involute curved surface granulating knife plus a file-shaped hole barrel extrusion granulating machine described in the utility model;

[0022] Figure 4 This is a structural diagram of an involute curved surface granulating knife plus a file-shaped hole barrel extrusion granulator described in the utility model;

[0023] Figure 5 This is a front view of the involute granulating knife assembly in the extrusion granulator of the utility model;

[0024] Figure 6 It is a top view of the involute granulating knife group in the extrusion granulator described in the utility model;

[0025] Figure 7 This is an axonometric view of the involute granulating knife group in the extrusion granulator described in the utility model;

[0026] Figure 8It is a cross-sectional view of the crushed holes of the crushed mesh 3 in the extrusion granulator described in the present utility model;

[0027] Figure 9 It is a front view of the crushed holes of the crushed net 3 in the extrusion granulator described in the utility model.

[0028] Figure: 1. Casing; 2. Commutator; 3. Folded screen; 4. Folded screen mounting seat; 5. Involute pelletizing knife assembly; 5-1. Conical seat; 5-2. Involute curved surface pelletizing knife; 6. Spindle; 7. Fixed seat; 7-1. Support plate; 7-2. Motor flange; 7-3. Triangular side plate; 7-4. Support plate; 7-5. Motor mounting plate; 8. Chain drive mechanism; 8-1. Driving sprocket; 8-2. Chain; 8-3. Driven sprocket; 8-4. Chain tensioner Mechanism; 8-4-1, tensioning inner plate; 8-4-2, tensioning outer plate; 8-4-3, tensioning bolt; 8-4-4, tensioning nut; 8-4-5, adjusting nut; 9, driving motor; 10, upper cover; 10-1, annular cover body; 10-2, truncated cone-shaped feed barrel; 10-3, hanging ear; 11, latch-type clamp; 12, main shaft support assembly; 12-1, upper bearing; 12-2, lower bearing; 12-3, lower gear cover; 13, locking nut. DETAILED DESCRIPTION

[0029] Specific implementation method 1: Combination Figures 1 to 9 Explain this embodiment, this embodiment is an involute curved surface granulating knife plus file-shaped hole cylinder extrusion granulator, which includes a casing 1, a commutator 2, a file-shaped net 3, a file-shaped net mounting seat 4, an involute granulating knife group 5, a main shaft 6, a fixing seat 7, a chain transmission mechanism 8 and a drive motor 9. The casing 1 is a rotating body casing with an upper opening, and a discharge port is opened at the bottom of the casing 1. A commutator 2 is provided inside the casing 1. The commutator 2 is a T-shaped sleeve structure. The vertical section of the commutator 2 is coaxially arranged with the casing 1. The vertical section of the commutator 2 is rotatably mounted with a vertically coaxial main shaft 6. One end of the horizontal section of the commutator 2 is connected to the commutator. The vertical section of the commutator 2 is connected, and the other end of the horizontal section of the commutator 2 passes through the side wall of the casing 1 and is connected to the fixed seat 7. A horizontally arranged crushed net mounting seat 4 is installed on the top of the vertical section of the commutator 2. The crushed net mounting seat 4 is coaxially installed with the top crushed net 3. The crushed net 3 is a sleeve-shaped structure. An involute granulating knife group 5 is rotatably installed inside the crushed net 3. The involute granulating knife group 5 is connected to the top of the main shaft 6. A chain transmission mechanism 8 is provided inside the horizontal section of the commutator 2. One end of the chain transmission mechanism 8 is connected to the middle part of the main shaft 6, and the other end of the chain transmission mechanism 8 is connected to the drive motor 9. The drive motor 9 is installed on the fixed seat 7.

[0030] Specific implementation method 2: Combination Figures 1 to 9Explain this embodiment. The fixing seat 7 of this embodiment includes a supporting vertical plate 7-1, a motor mounting plate 7-2, two triangular side plates 7-3 and two supporting plates 7-4. The supporting vertical plate 7-1 is vertically arranged on the side of the casing 1. A rectangular through hole for the chain transmission mechanism 8 to pass through is opened on the supporting vertical plate 7-1. Two triangular side plates 7-3 arranged vertically and symmetrically are provided on the side of the supporting vertical plate 7-1 away from the casing 1. Two supporting plates 7-4 are respectively provided at the bottom of the two triangular side plates 7-3. The bottom ends of the triangular side plates 7-3 are connected to the top ends of the supporting plates 7-4, and the ends of the two supporting plates 7-4 are both connected to the motor mounting plate The mounting plate 7-2 is connected, and the inner surfaces of the upper surfaces of the two supporting plates 7-4 are machined with a slide groove. The motor mounting plate 7-5 is horizontally arranged between the two triangular side plates 7-3. The two ends of the motor mounting plate 7-5 are respectively slidably connected to the slide grooves of the two supporting plates 7-4. The middle portion of the upper surface of the motor mounting plate 7-5 is machined with a motor shaft mounting hole. The drive motor 9 is vertically arranged above the motor mounting plate 7-2, and the drive motor 9 shaft passes through the motor shaft mounting hole. The drive motor 9 shaft passes through the motor shaft mounting hole. The connecting flange of the drive motor 9 is connected to the motor mounting plate 7-5 via multiple connecting elements. The other components and connection relationships are the same as those of the specific embodiment 1.

[0031] Specific implementation method three: Combination Figures 1 to 9 To explain this embodiment, the chain drive mechanism 8 includes a driving sprocket 8-1, a chain 8-2, and a driven sprocket 8-3. The driving sprocket 8-1 is mounted on the rotating shaft of the drive motor 9, and the driven sprocket 8-3 is mounted in the middle of the main shaft 6. The driving sprocket 8-1 is connected to the driven sprocket 8-3 via the chain 8-2. With this arrangement, the main shaft 6 is connected to the driving sprocket 8-1 via the driven sprocket 8-3 and the chain 8-2. Power is transmitted from the drive motor 9 to the driving sprocket 8-1 and ultimately to the involute granulating knife assembly 5. The remaining components and connections are the same as those in the first or second embodiment.

[0032] Specific implementation method four: Combination Figures 1 to 9Explain this embodiment. The chain transmission mechanism 8 of this embodiment also includes a chain tensioning mechanism 8-4. The chain tensioning mechanism 8-4 is arranged on the side of the chain 8-2. The chain tensioning mechanism 8-4 includes a tensioning inner plate 8-4-1, a tensioning outer plate 8-4-2, a tensioning bolt 8-4-3, a tensioning nut 8-4-4 and an adjusting nut 8-4-5. The tensioning inner plate 8-4-1 is vertically arranged below the two supporting plates 7-4 along the width direction of the supporting vertical plate 7-1. The two ends of the upper surface of the tensioning inner plate 8-4-1 are respectively connected to the lower surfaces of the two supporting plates 7-4. The chain 8-2 is tensioned by the chain tensioning mechanism 8-4. The chain 8-2 is tensioned by the chain tensioning mechanism 8-4. The chain 8-2 is tensioned by the chain tensioning mechanism 8-4. The chain 8-2 is tensioned by the chain tensioning mechanism 8-4. The chain 8-2 is tensioned by the chain tensioning mechanism 8-4. Adjusting the position of the adjusting nut 8-4-5 on the threaded rod of the tensioning bolt 8-4-3 causes the tensioning outer plate 8-4-2 and the motor mounting plate 7-5 to move, thereby adjusting the tension of the chain 8-2. Other components and connection relationships are the same as those in the first, second or third embodiment.

[0033] Specific implementation method five: Combination Figures 1 to 9 The present embodiment is described. The present embodiment also includes an upper cover 10, which includes a circular cover body 10-1, a truncated cone-shaped feed barrel 10-2 and three hanging ears 10-3. The bottom of the circular cover body 10-1 is provided with a cylindrical extension, and the outer side of the cylindrical extension is evenly provided with three hanging ears 10-3 along the circumferential direction. The circular cover body 10-1 is buckled onto the upper part of the casing 1, and the inner hole of the cylindrical extension is clearance-matched with the outer surface of the casing 1. The truncated cone-shaped feed barrel 10-2 is vertically coaxially arranged just above the folded net 3, and the bottom end of the truncated cone-shaped feed barrel 10-2 is fixedly connected to the cylindrical surface of the inner hole of the circular cover body 10-1. With such an arrangement, the material enters the extrusion granulator through the hole in the middle of the upper cover 10. Other components and connection relationships are the same as those of the specific embodiments one, two, three or four.

[0034] Specific implementation method six: combination Figures 1 to 9 This embodiment also includes three latch-type clamps 11, evenly spaced along the circumference of the upper outer surface of the housing 1. These three latch-type clamps 11 correspond one-to-one with the three lugs 10-3. With this arrangement, the upper cover 10 is secured to the housing 1 via the latch-type clamps 11. The remaining components and connections are identical to those in Embodiments 1, 2, 3, 4, or 5.

[0035] Specific implementation method seven: combination Figures 1 to 9 To explain this embodiment, the involute granulating knife assembly 5 includes a conical seat 5-1 and two involute curved granulating knives 5-2. The conical seat 5-1 is conical in structure, and the two involute curved granulating knives 5-2 are connected to the upper surface of the conical seat 5-1 in a centrally symmetrical arrangement. The involute curved granulating knives 5-2 have an involute curved surface. With this arrangement, the involute granulating knife assembly 5 is assembled from the conical seat 5-1 and the involute curved granulating knives 5-2. The involute curved granulating knives 5-2 mounted on the conical seat 5-1 have angles on the X-axis, Y-axis, and Z-axis. The involute curved granulating blade 5-2 itself is involute in shape. This shape allows the material to enter the gap between the involute granulating blade assembly 5 and the crushed net 3 due to the centrifugal force under the rotation of the involute curved granulating blade 5-2. Moreover, because the involute curved granulating blade 5-2 is also angled on the Z axis, the material can be squeezed out of the mesh of the crushed net 3. The other components and connection relationships are the same as those of the first, second, third, fourth, fifth or sixth embodiments.

[0036] Specific implementation method eight: combination Figures 1 to 9 This embodiment also includes a locking nut 13. A conical seat connection hole is defined in the center of the upper surface of the conical seat 5-1. A vertically arranged threaded hole for connecting the pelletizer is defined in the center of the top end of the spindle 6. The conical seat 5-1 is connected to the top end of the spindle 6 via the locking nut 13. This arrangement, connecting the conical seat 5-1 to the spindle 6 with the locking nut 13, facilitates disassembly and installation. Other components and connections are identical to those in Specific Embodiments 1, 2, 3, 4, 5, 6, or 7.

[0037] Specific implementation method nine: Combination Figures 1 to 9 This embodiment describes the frustum mesh 3 formed by rolling a frustum perforated plate. With this configuration, the frustum mesh 3 is formed by rolling a frustum perforated plate. Because the involute-curved pelletizing blade 5-2 is involute-curved and the conical seat 5-1 is also conical, material can be completely extruded from the frustum mesh 3, eliminating any material retention within the device. The remaining components and connections are identical to those of the first, second, third, fourth, fifth, sixth, seventh, or eighth embodiments.

[0038] Specific implementation method ten: Combination Figures 1 to 9This embodiment describes a spindle support assembly 12, which includes an upper bearing 12-1, a lower bearing 12-2, and a lower retaining cover 12-3. The upper and lower ends of the inner bore of the vertical section of the commutator 2 are respectively mounted with the upper and lower bearings 12-1 and 12-2. The upper and lower ends of the spindle 6 are rotatably connected to the vertical section of the commutator 2 via the upper and lower bearings 12-1 and 12-2, respectively. The upper portion of the upper bearing 12-1 is provided with an upper retaining ring, and the lower portion of the lower bearing 12-2 is provided with a lower retaining ring. Both the upper and lower retaining rings are connected to the vertical section of the commutator 2, and the lower retaining cover 12-3 is mounted at the bottom end of the vertical section of the commutator 2. With this arrangement, the spindle 6 is fixedly connected to the commutator 2 by the bearings and retaining rings. Other components and connection relationships are the same as those of the first, second, third, fourth, fifth, sixth, seventh, eighth, or ninth embodiment.

[0039] How it works

[0040] Combine Figures 1 to 9 The working principle of the involute curved surface granulator with file-shaped hole barrel extrusion granulator described in the utility model is as follows: the involute granulator group 5 rotates under the drive of the main shaft 8, and the file-shaped net 3 is fixedly installed with the commutator 2 through the file-shaped net mounting seat 5 and does not rotate. The main shaft 6 is connected to the active sprocket 8-1 through the passive sprocket 8-3 and the chain 8-2. The power is transmitted from the drive motor 9 to the active sprocket 8-1 and finally to the involute granulator group 5. Since the involute granulator group 5 is rotating And the rolled net 3 is fixed, so the two produce relative motion. The involute curved surface granulating knife 5-2 itself is in the form of an involute. This form allows the material to enter the gap between the involute granulating knife group 5 and the rolled net 3 outward under the action of centrifugal force under the rotation of the involute curved surface granulating knife 5-2, and because the involute curved surface granulating knife 5-2 also has an angle on the Z axis, the material can be squeezed out from the mesh of the rolled net 3, and the extruded material falls through the annular cavity formed by the casing 1 and the rolled net 3.

[0041] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An involute curved surface granulating knife plus file-shaped hole barrel extrusion granulator, characterized in that: The invention comprises a casing (1), a commutator (2), a crushed net (3), a crushed net mounting seat (4), an involute granulating knife group (5), a main shaft (6), a fixing seat (7), a chain transmission mechanism (8) and a driving motor (9). The casing (1) is a rotating body casing with an upper opening, a discharge port is provided at the bottom of the casing (1), a commutator (2) is provided inside the casing (1), the commutator (2) is a T-shaped sleeve structure, a vertical section of the commutator (2) is coaxially arranged with the casing (1), a main shaft (6) arranged vertically and coaxially is rotatably mounted inside the vertical section of the commutator (2), one end of the horizontal section of the commutator (2) is connected to the vertical section of the commutator (2), and the horizontal section of the commutator (2) is connected to the vertical section of the commutator (2). The other end passes through the side wall of the casing (1) and is connected to the fixed seat (7). A horizontally arranged crushed net mounting seat (4) is installed at the top of the vertical section of the commutator (2). The crushed net mounting seat (4) is coaxially mounted with a top crushed net (3). The crushed net (3) is a sleeve-shaped structure. An involute granulating knife group (5) is rotatably installed inside the crushed net (3). The involute granulating knife group (5) is connected to the top of the main shaft (6). A chain transmission mechanism (8) is provided inside the horizontal section of the commutator (2). One end of the chain transmission mechanism (8) is connected to the middle of the main shaft (6), and the other end of the chain transmission mechanism (8) is connected to a drive motor (9). The drive motor (9) is mounted on the fixed seat (7).

2. The involute curved surface granulating knife plus file-shaped hole barrel extrusion granulator according to claim 1, characterized in that: The fixing seat (7) comprises a supporting vertical plate (7-1), a motor mounting plate (7-2), two triangular side plates (7-3) and two supporting plates (7-4). The supporting vertical plate (7-1) is vertically arranged on the side of the housing (1). A rectangular through hole for the chain transmission mechanism (8) to pass through is opened on the supporting vertical plate (7-1). Two triangular side plates (7-3) arranged vertically and symmetrically are provided on the side of the supporting vertical plate (7-1) away from the housing (1). Two supporting plates (7-4) are respectively provided at the bottom of the two triangular side plates (7-3). The bottom ends of the triangular side plates (7-3) are connected to the top ends of the supporting plates (7-4). The two supporting plates (7-4) are connected to the bottom ends of the two triangular side plates (7-3). 4) ends are connected to the motor mounting plate 7-2, the inner sides of the upper surfaces of the two supporting plates (7-4) are processed with a slide groove, the motor mounting plate (7-2) is horizontally arranged between the two triangular side plates (7-3), the two ends of the motor mounting plate (7-2) are respectively slidably connected to the slide grooves of the two supporting plates (7-4), a motor shaft mounting hole is processed in the middle of the upper surface of the motor mounting plate (7-2), the drive motor (9) is vertically arranged above the motor mounting plate (7-2), the drive motor (9) shaft passes through the motor shaft mounting hole, and the connecting flange of the drive motor (9) is connected to the motor mounting plate (7-2) through a plurality of connecting elements.

3. The involute curved surface granulating knife plus file-shaped hole barrel extrusion granulator according to claim 1 or 2, characterized in that: The chain transmission mechanism (8) comprises a driving sprocket (8-1), a chain (8-2) and a driven sprocket (8-3). The driving sprocket (8-1) is mounted on the rotating shaft of the driving motor (9), the driven sprocket (8-3) is mounted on the middle of the main shaft (6), and the driving sprocket (8-1) is connected to the driven sprocket (8-3) through the chain (8-2).

4. The involute curved surface granulating knife plus file-shaped hole barrel extrusion granulator according to claim 3, characterized in that: The chain transmission mechanism (8) also includes a chain tensioning mechanism (8-4), which is arranged on the side of the chain (8-2). The chain tensioning mechanism (8-4) includes a tensioning inner plate (8-4-1), a tensioning outer plate (8-4-2), a tensioning bolt (8-4-3), a tensioning nut (8-4-4) and an adjusting nut (8-4-5). The tensioning inner plate (8-4-1) is vertically arranged below the two supporting plates (7-4) along the width direction of the supporting vertical plate (7-1). The two ends of the upper surface of the tensioning inner plate (8-4-1) are respectively connected to the lower surfaces of the two supporting plates (7-4). The tensioning inner plate (8-4-1) is processed An inner plate through hole is provided, a tensioning outer plate (8-4-2) is arranged in parallel on the outer side of the tensioning inner plate (8-4-1), an outer plate through hole is processed on the tensioning outer plate (8-4-2), the outer plate through hole and the inner plate through hole are arranged coaxially, a screw of a tensioning bolt (8-4-3) passes through the outer plate through hole and the inner plate through hole in sequence from outside to inside, an end of the screw of the tensioning bolt (8-4-3) is threadedly connected to the tensioning nut (8-4-4), an adjusting nut (8-4-5) is located between the tensioning inner plate (8-4-1) and the tensioning outer plate (8-4-2), and a middle part of the screw of the tensioning bolt (8-4-3) is threadedly connected to the adjusting nut (8-4-5).

5. The involute curved surface granulating knife plus file-shaped hole barrel extrusion granulator according to claim 4, characterized in that: The invention also includes an upper cover (10), which includes a circular cover plate body (10-1), a truncated cone-shaped feed barrel (10-2) and three hanging ears (10-3). The bottom of the circular cover plate body (10-1) is provided with a cylindrical extension, and the outer side surface of the cylindrical extension is evenly provided with three hanging ears (10-3) along the circumferential direction. The circular cover plate body (10-1) is buckled onto the upper part of the casing (1), and the inner hole of the cylindrical extension is clearance-matched with the outer surface of the casing (1). The truncated cone-shaped feed barrel (10-2) is vertically and coaxially arranged directly above the truncated net (3), and the bottom end of the truncated cone-shaped feed barrel (10-2) is fixedly connected to the cylindrical surface of the inner hole of the circular cover plate body (10-1).

6. The involute curved surface granulating knife plus file-shaped hole barrel extrusion granulator according to claim 5, characterized in that: It also includes three latch-type clamps (11), which are evenly arranged on the upper portion of the outer surface of the casing (1) along the circumferential direction, and the three latch-type clamps (11) correspond one to one to the three hanging ears (10-3).

7. The involute curved surface granulating knife plus file-shaped hole barrel extrusion granulator according to claim 1 or 6, characterized in that: The involute granulating knife group (5) comprises a conical seat (5-1) and two involute curved surface granulating knives (5-2); the conical seat (5-1) is a conical structure; the upper surface of the conical seat (5-1) is connected to the two involute curved surface granulating knives (5-2) arranged in a central symmetrical manner; the involute curved surface granulating knives (5-2) are in the shape of an involute curved surface.

8. The involute curved surface granulating knife plus file-shaped hole barrel extrusion granulator according to claim 7, characterized in that: It also includes a locking nut (13), a conical seat connection hole is opened at the center of the upper surface of the conical seat (5-1), a vertically arranged granulating knife connection threaded hole is opened at the center of the top of the main shaft (6), and the conical seat (5-1) is connected to the top of the main shaft (6) through the locking nut (13).

9. The involute curved surface granulating knife plus file-shaped hole barrel extrusion granulator according to claim 1, characterized in that: The frusto-shaped net (3) is formed by rolling a frusto-shaped perforated plate.

10. An involute curved surface granulating knife plus file-shaped hole barrel extrusion granulator according to claim 1, 4, 5, 6, 8 or 9, characterized in that: The invention also includes a main shaft support assembly (12), which includes an upper bearing (12-1), a lower bearing (12-2) and a lower stop cover (12-3). The upper and lower ends of the inner hole of the vertical section of the commutator (2) are respectively installed with the upper bearing (12-1) and the lower bearing (12-2). The upper and lower ends of the main shaft (6) are rotatably connected to the vertical section of the commutator (2) through the upper bearing (12-1) and the lower bearing (12-2). The upper part of the upper bearing (12-1) is provided with an upper stop ring, and the lower part of the lower bearing (12-2) is provided with a lower stop ring. Both the upper stop ring and the lower stop ring are connected to the vertical section of the commutator (2). The lower stop cover (12-3) is installed at the bottom end of the vertical section of the commutator (2).

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