CN113306040A - Grain cutting device for plastic extrusion granulator - Google Patents
Grain cutting device for plastic extrusion granulator Download PDFInfo
- Publication number
- CN113306040A CN113306040A CN202110652607.8A CN202110652607A CN113306040A CN 113306040 A CN113306040 A CN 113306040A CN 202110652607 A CN202110652607 A CN 202110652607A CN 113306040 A CN113306040 A CN 113306040A
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- cylindrical
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- mounting
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- 239000004033 plastic Substances 0.000 title claims abstract description 37
- 229920003023 plastic Polymers 0.000 title claims abstract description 37
- 238000001125 extrusion Methods 0.000 title claims abstract description 27
- 238000005520 cutting process Methods 0.000 title claims description 27
- 238000003825 pressing Methods 0.000 claims description 41
- 238000007906 compression Methods 0.000 claims description 22
- 230000006835 compression Effects 0.000 claims description 22
- 238000005070 sampling Methods 0.000 claims description 20
- 238000007789 sealing Methods 0.000 claims description 7
- 238000005453 pelletization Methods 0.000 claims 8
- 238000007599 discharging Methods 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000758 substrate Substances 0.000 description 6
- 229920000426 Microplastic Polymers 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000005469 granulation Methods 0.000 description 3
- 230000003179 granulation Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 210000002268 wool Anatomy 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical group C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
Abstract
The invention discloses a granulating device for a plastic extrusion granulator, which comprises a cutter, a motor and a cutter mounting piece, wherein one end of the cutter mounting piece is connected with the motor, the other end of the cutter mounting piece is provided with a plurality of cutter mounting structures along the circumferential direction of the cutter mounting piece, each cutter mounting structure is provided with a cutter, the cutter mounting structures are hinged on the cutter mounting piece, the cutter mounting piece is provided with a first fixing bolt, and the cutter mounting structures can be fixed by screwing the first fixing bolt; the inclination angle of the cutter can be adjusted, the included angle between the cutter and the plate surface of the discharging plate can be adjusted, and a good granulating effect can be achieved through the adjustment.
Description
Technical Field
The invention relates to the technical field of plastic extrusion granulation, in particular to a granulating device for a plastic extrusion granulator.
Background
When the plastic extrusion granulator works, the internal mixing material produced by the internal mixer is added into a feeding hopper of the plastic extrusion granulator, and the internal mixing material is extruded by a discharge plate arranged at the discharge port of the plastic extrusion granulator after being compacted and compressed and plasticized under the action of a screw of the plastic extrusion granulator. The structure of ejection of compact board is shown in fig. 1, and the ejection of compact board is discoid, is provided with the multiunit discharge opening on the ejection of compact board, and each discharge opening in every group discharge opening sets gradually along the circumferencial direction of ejection of compact board. The plastic extruded from the discharge hole of the discharge plate is in a strip cylindrical structure. The grain cutting tool in the grain cutting device is a cutter, the cutting edge of the cutter contacts with the region where the discharge hole is located on the discharge plate, the cutter rotates under the action of the motor, and plastic extruded from the discharge hole of the discharge plate is cut to obtain short plastic granules.
The existing granulating device has the problem that the inclination angle of the cutter is not adjustable, so that the included angle between the cutter and the surface of the discharging plate is not adjustable. This just can not carry out the regulation of contained angle between cutter and the play flitch face according to actual production conditions such as ejection of compact temperature, plastics type, ejection of compact plate structure, easily leads to cutting grain not good problem to appear.
Disclosure of Invention
The invention aims to provide a granulating device for a plastic extrusion granulator, and aims to solve the problem that the existing granulating device cannot adjust the included angle between a cutter and the surface of a discharging plate because the inclination angle of the cutter cannot be adjusted, so that the granulating effect is poor.
The invention is realized by the following steps: the utility model provides a plastics extrusion granulator is with cutting grain device, includes cutter, motor and cutter installed part, the one end of cutter installed part links to each other with the motor, and the other end is provided with a plurality of cutter mounting structures along its circumference direction, respectively installs a cutter on every cutter mounting structure, cutter mounting structure articulates on the cutter installed part, be provided with first fixing bolt on the cutter installed part, screw up first fixing bolt and can fix cutter mounting structure.
Further, the cutter mounting member comprises a cylinder, a sleeve, a spring and a compression nut;
an external thread structure and a key groove are arranged on the outer wall of the cylinder, the key groove is positioned below the external thread structure, and a key is arranged in the key groove;
the inner diameter of the sleeve is the same as the outer diameter of the cylinder, the sleeve is sleeved on the cylinder, and a through groove matched with the key in the key groove is formed in the inner wall of the sleeve; the outer wall of the sleeve is provided with a plurality of mounting blocks along the circumferential direction of the sleeve, the outer end face of each mounting block is provided with a cylindrical hole, the side wall of each mounting block is provided with a threaded through hole leading to the cylindrical hole, and the first fixing bolt is mounted in the threaded through hole;
the spring is sleeved on the cylinder and positioned above the sleeve; the compression nut is installed on an external thread structure arranged on the outer wall of the cylinder in a threaded mode and used for compressing the sleeve through a spring;
the cutter mounting structure comprises a mounting base body and a pressing plate, the mounting base body comprises a cylindrical part and a mounting block part, the diameter of the cylindrical part is the same as the aperture of a cylindrical hole of the mounting block, and the cylindrical part is inserted into the cylindrical hole of the mounting block; a threaded hole is formed in the mounting surface of the mounting block part, a second fixing bolt is mounted in the threaded hole, a long-strip-shaped limiting through hole is formed in the cutter, a connecting through hole is formed in the pressing plate, the cutter is arranged between the mounting surface of the mounting block part and the pressing plate, and the rod part of the second fixing bolt penetrates through the connecting through hole of the pressing plate and the connecting through hole of the cutter;
furthermore, the motor further comprises a connecting piece, a connecting structure is arranged at the upper end of the cylinder, one end of the connecting piece is connected with the rotating shaft of the motor, the other end of the connecting piece is connected with the connecting structure of the cylinder in a matched mode, and the motor drives the cylinder to rotate through the connecting piece.
Furthermore, an angle scale is arranged on the outer end face of the mounting block and located on the outer side of the cylindrical hole, an indicating line is arranged on the outer wall of the cylindrical portion of the mounting base body, and the length direction of the indicating line is along the axial direction of the cylindrical portion.
Furthermore, two positioning columns are arranged on the mounting surface of the mounting base body, two positioning holes matched with the two positioning columns are arranged on the pressing plate, and when the two positioning holes are respectively sleeved on the two positioning columns, the connecting through holes in the pressing plate are aligned with the threaded holes in the mounting base body.
Furthermore, a cutting seam is arranged on the compression nut along the thickness direction of the compression nut, a locking threaded hole is formed in one seam surface of the cutting seam, a second-stage stepped cylindrical through hole is formed in the other seam surface of the cutting seam, the second-stage stepped cylindrical through hole comprises a first-stage cylindrical through hole and a second-stage cylindrical through hole, the aperture of the first-stage cylindrical through hole is smaller than that of the second-stage cylindrical through hole, the common central axis of the locking threaded hole, the first-stage cylindrical through hole and the second-stage cylindrical through hole is arranged, a locking bolt is installed in the locking threaded hole, the head of the locking bolt is located in the second-stage cylindrical through hole, and the rod portion penetrates through the first-stage cylindrical through hole and is screwed into the locking threaded hole.
The left half housing and the right half housing are in semi-cylindrical structures, connecting parts are arranged at the upper ends of the left half housing and the right half housing, connecting holes are formed in the connecting parts, and the left half housing and the right half housing are connected at the connecting parts through bolts and nuts; the upper ends of the left half housing and the right half housing are connected together to form a cylindrical housing, a first sleeving hole is formed in the middle of the left circular surface of the cylindrical housing, the first sleeving hole of the cylindrical housing is sleeved at a discharge port of the plastic extrusion granulator, a second sleeving hole is formed in the middle of the right circular surface of the cylindrical housing, the second sleeving hole is sleeved on a rotating shaft of the motor, and the cutter mounting piece and the cutter are both located in the cylindrical housing; an air inlet pipe is arranged on the cylindrical surface of the left half housing, and an air outlet pipe is arranged on the cylindrical surface of the right half housing.
Furthermore, the left half housing is provided with a left half rubber sleeve at a second sleeving hole, the right half housing is provided with a right half rubber sleeve at the second sleeving hole, the left half rubber sleeve and the right half rubber sleeve are both semi-circular, sealing strips are arranged on the inner annular walls of the left half rubber sleeve and the right half rubber sleeve, when the upper ends of the left half housing and the right half housing are connected together, the left half rubber sleeve and the right half rubber sleeve are combined into a circular rubber sleeve, and the circular rubber sleeve and the sealing strips are both sleeved on a rotating shaft of the motor; and cylindrical surfaces of the left half housing and the right half housing are respectively provided with an observation window.
Further, a light touch switch is arranged on the left half housing and electrically connected with the motor for controlling the on-off of a motor circuit, a pressing block is arranged on the right half housing, and when the upper ends of the left half housing and the right half housing are connected together to form a cylindrical housing, the pressing block presses the light touch switch to enable the light touch switch to be conducted.
Furthermore, a sampling tube is further arranged on the cylindrical surface of the right half housing, a valve is arranged on the sampling tube, an external thread is arranged on the outer wall of one end, far away from the right half housing, of the sampling tube, a collecting tube is connected to the end of the sampling tube in a threaded manner, and a filter screen is arranged at one end, far away from the sampling tube, of the collecting tube.
Compared with the prior art, the invention has the beneficial effects that:
1. the inclination angle of the cutter can be adjusted, the included angle between the cutter and the plate surface of the discharging plate can be adjusted, and a good granulating effect can be achieved through the adjustment.
2. The outer end face of the mounting block, which is located on the outer side of the cylindrical hole, is provided with angle scales, the outer wall of the cylindrical portion of the mounting base body is provided with an indicating line, and the length direction of the indicating line is along the axial direction of the cylindrical portion. Under the indicative function of angle scale and instruction line, be convenient for more keep unanimous with the contained angle between each cutter and the play flitch face.
3. The compression nut is provided with a cutting seam along the thickness direction of the compression nut, a locking threaded hole is formed in one seam surface of the cutting seam, a second-stage stepped cylindrical through hole is formed in the other seam surface of the cutting seam, a locking bolt is installed in the second-stage stepped cylindrical through hole, and the locking bolt is locked in the locking threaded hole. After the cutters are adjusted and the pressing force of the spring is adjusted, the locking bolt is screwed down, so that the pressing nut cannot be loosened during the granulating operation of the granulator, the spring presses the cutters on the discharging plate all the time, and the pressing force of the spring is kept unchanged.
4. Be provided with on the half housing on the left side and dabble the switch, dabble the switch and link to each other with the motor electrical property for control motor circuit's break-make, be provided with on the half housing on the right side and press the briquetting, when the upper end of half housing on the left side and half housing on the right side links together and constitutes a cylindrical housing, press the briquetting and press the dabbing switch, make to dabble the switch and switch on. Due to the arrangement, the accident that the cutter cuts people due to the accidental rotation of the motor can not occur.
5. Still be provided with the sampling tube on the face of cylinder of half housing on the right side, be provided with the valve on the sampling tube, be provided with the external screw thread on the outer wall of the one end that half housing on the right side was kept away from to the sampling tube, and this end threaded connection has the collecting pipe, and the one end that the collecting pipe was kept away from is provided with the filter screen, and the air current of being convenient for is discharged in by the collecting pipe. Through the setting of sampling tube, valve and collecting pipe, be convenient for carry out plastic granules's sample, provide the basis for the rotational speed regulation of motor.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural view of a discharge plate;
FIG. 2 is a schematic structural diagram of a first embodiment of the present invention and a schematic structural diagram of a second embodiment of the present invention with the left half cover and the right half cover removed;
FIG. 3 is a schematic perspective view of the motor and the connector of FIG. 2 with the motor and connector removed;
FIG. 4 is a schematic perspective view of a cylinder of the present invention;
FIG. 5 is a schematic perspective view of the sleeve of the present invention;
FIG. 6 is a schematic perspective view of the mounting base of the present invention;
FIG. 7 is a schematic perspective view of the platen of the present invention;
FIG. 8 is a perspective view of the compression nut of the present invention;
FIG. 9 is a front view of the compression nut of the present invention;
FIG. 10 is a perspective view of a cutter according to the present invention;
FIG. 11 is a schematic perspective view of a second embodiment of the present invention;
fig. 12 is a schematic structural view of the left half cover and the right half cover of the second embodiment of the present invention when they are joined together.
In the figure: 1. a cutter; 101. a limiting through hole; 2. a motor; 3. a cylinder; 301. a connecting structure; 302. an external thread structure; 303. a keyway; 4. a sleeve; 5. mounting blocks; 501. a cylindrical bore; 502. angle scales; 6. a first fixing bolt; 7. installing a base body; 701. a cylindrical portion; 702. a mounting block portion; 703. a threaded hole; 704. an indicator line; 705. a positioning column; 8. pressing a plate; 801. a connecting through hole; 802. positioning holes; 9. a second fixing bolt; 10. a spring; 11. a compression nut; 1101. cutting a seam; 1102. locking the threaded hole; 1103. a first stage cylindrical through hole; 1104. a second stage cylindrical through hole; 12. a connecting member; 13. a left half housing; 14. a right half housing; 15. a second sleeving hole; 16. an air inlet pipe; 17. an air outlet pipe; 18. sealing the wool tops; 19. a circular rubber sleeve; 20. a tact switch; 21. a pressing block; 22. a sampling tube; 23. a valve; 24. a collection pipe; 25. a filter screen; 26. and (4) an observation window.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The first embodiment is as follows:
a granulating device for a plastic extrusion granulator is shown in figures 2 and 3 and comprises a cutter 1, a motor 2, a connecting piece 12 and a cutter mounting piece, wherein the cutter mounting piece comprises a cylinder 3, a sleeve 4, a spring 10 and a compression nut 11.
Referring to fig. 4, an external thread structure 302 and a key groove 303 are disposed on an outer wall of the cylinder 3, the key groove 303 is located below the external thread structure 302, and a key is installed in the key groove 303.
Referring to fig. 5, the inner diameter of the sleeve 4 is the same as the outer diameter of the cylinder 3, the sleeve 4 is sleeved on the cylinder 3, and a through groove matched with the key in the key groove 303 is formed on the inner wall of the sleeve 4. The outer wall of the sleeve 4 is provided with a plurality of mounting blocks 5 along the circumferential direction, the outer end face of each mounting block 5 is provided with a cylindrical hole 501, the side wall of each mounting block 5 is provided with a threaded through hole leading to the cylindrical hole 501, and a first fixing bolt 6 is mounted in each threaded through hole.
Referring to fig. 3, 5, 6, 7 and 10, a cutter mounting structure is mounted in each cylindrical hole 501 of each mounting block 5, the cutter mounting structure includes a mounting base 7 and a pressing plate 8, the mounting base 7 includes a cylindrical portion 701 and a mounting block portion 702, the diameter of the cylindrical portion 701 is the same as the diameter of the cylindrical hole 501 of the mounting block 5, the cylindrical portion 701 is inserted into the cylindrical hole 501 of the mounting block 5, the cylindrical portion 701 can rotate in the cylindrical hole 501, and tightening the first fixing bolt 6 can fix the cylindrical portion 701, that is, fix the mounting base 7. The mounting surface of the mounting block 702 is provided with a threaded hole 703, a second fixing bolt 9 is mounted in the threaded hole 703, the cutter 1 is provided with a long-strip-shaped limiting through hole 101, the pressing plate 8 is provided with a connecting through hole 801, the cutter 1 is arranged between the mounting surface of the mounting block 702 and the pressing plate 8, and the rod part of the second fixing bolt 9 penetrates through the connecting through hole 801 of the pressing plate 8 and the connecting through hole 801 of the cutter 1.
Referring to fig. 6, 7 and 10, two positioning posts 705 are disposed on the mounting surface of the mounting substrate 7, two positioning holes 802 are disposed on the pressing plate 8 and are matched with the two positioning posts 705, and when the two positioning holes 802 are respectively sleeved on the two positioning posts 705, the connecting through hole 801 on the pressing plate 8 is aligned with the threaded hole 703 on the mounting substrate 7. The arrangement is convenient for mounting and fixing the cutter 1 on the mounting block part 702 of the mounting base body 7.
Referring to fig. 3, the spring 10 is sleeved on the cylinder 3 and located above the sleeve 4. A compression nut 11 is threadedly mounted on an external thread structure 302 provided on the outer wall of the cylinder 3 for compressing the sleeve 4 by means of a spring 10.
Referring to fig. 2 and 4, the upper end of the cylinder 3 is provided with a connecting structure 301, one end of the connecting member 12 is connected to the rotating shaft of the motor 2, the end is sleeved on the rotating shaft of the motor 2 and connected to the rotating shaft of the motor 2 through a flat key and a bolt, and the other end of the connecting member 12 is connected to the connecting structure 301 of the cylinder 3 in a matching manner. The other end of the connecting piece 12 is provided with a structure matched with the connecting structure 301 of the cylinder 3, if the connecting structure 301 is a cylindrical hole structure plus a clamping jaw structure, the other end of the connecting piece 12 is a cylindrical structure and a clamping jaw structure matched with the connecting piece, and if the connecting structure 301 is a rectangular hole structure, the other end of the connecting piece 12 is a rectangular block structure matched with the connecting piece. So set up for motor 2 accessible connecting piece 12 drives drum 3 and rotates, and then drives sleeve 4 and rotates.
The installation and working principle of the invention is as follows: a flat key is mounted in the key groove 303 of the cylinder 3, and the sleeve 4 is sleeved on the cylinder 3, so that the flat key is clamped in the through groove of the sleeve 4. A spring 10 is fitted over the cylinder 3 and a compression nut 11 is fitted over the external thread formation 302 of the cylinder 3. The upper cutter 1 and the presser plate 8 are mounted on the mounting block portion 702 of the mounting base 7 and fixed using the second fixing bolt 9. The cylindrical part 701 of the mounting base body 7 is inserted into the cylindrical hole 501 of the mounting block 5, the mounting base body 7 is rotated, the inclination angle of the cutter 1 is adjusted, the first fixing bolt 6 is screwed after the adjustment is finished, and the mounting base body 7 is firmly fixed in the mounting block 5. Then, the coupling member 12 is fitted to the rotation shaft of the motor 2, and the drum 3 is fitted to the coupling member 12. The gland nut 11 is screwed, the sleeve 4 is pressed through the spring 10, and the cutter 1 is driven to move towards the discharging plate, so that the cutting edge of the cutter 1 is pressed on the plate surface of the discharging plate. For the cutter 1 with the blade not in contact with the plate surface of the discharging plate and the cutter 1 with the blade not in complete contact with the plate surface of the discharging plate, the second fixing bolt 9 for fixing the cutter is unscrewed, so that the cutter 1 is adjusted, the blade of the cutter 1 is in complete contact with the plate surface of the discharging plate, and then the second fixing bolt 9 for fixing the cutter is screwed. So adjust, all the cutting edges of the cutter 1 are completely contacted with the plate surface of the discharging plate. Starting motor 2, motor 2 passes through connecting piece 12 and drives drum 3 and rotate, and then drives sleeve 4 and rotate, and each cutter 1 rotates along with sleeve 4's rotation, cuts grain to the plastics of extruding by the discharge opening of play flitch.
Therefore, the inclination angle of the cutter 1 can be adjusted, the included angle between the cutter 1 and the plate surface of the discharging plate can be adjusted, and a good granulating effect can be achieved through the adjustment.
In addition, motor 2 should electrically connected with the converter, can control motor 2's rotational speed through the converter to in the plastic granules of cutting out different length.
Referring to fig. 3, 5 and 6, an angle scale 502 is disposed on the outer end surface of the mounting block 5 and located outside the cylindrical hole 501, and an indication line 704 is disposed on the outer wall of the cylindrical portion 701 of the mounting substrate 7, and the length direction of the indication line 704 is along the axial direction of the cylindrical portion 701. Under the indicating action of the angle scales 502 and the indicating lines 704, the included angle between each cutter 1 and the surface of the discharging plate is kept consistent.
Referring to fig. 3, 8 and 9, a cutting slit 1101 is formed in the compression nut 11 along the thickness direction of the compression nut, a locking threaded hole 1102 is formed in one slit surface of the cutting slit 1101, a secondary stepped cylindrical through hole is formed in the other slit surface of the cutting slit 1101, the secondary stepped cylindrical through hole includes a first-stage cylindrical through hole 1103 and a second-stage cylindrical through hole 1104, the diameter of the first-stage cylindrical through hole 1103 is smaller than that of the second-stage cylindrical through hole 1104, the locking threaded hole 1102, the first-stage cylindrical through hole 1103 and the second-stage cylindrical through hole 1104 share a central axis, a locking bolt is installed in the locking threaded hole 1102, the head of the locking bolt is located in the second-stage cylindrical through hole 1104, and the rod penetrates through the first-stage cylindrical through hole 1103 and is screwed into the locking threaded hole 1102. After the adjustment of each cutter 1 is finished and the pressing force of the spring 10 is finished, the locking bolt is screwed down, so that the pressing nut 11 cannot be loosened during the granulation operation of the invention, the spring 10 presses each cutter 1 on the discharging plate all the time, and the pressing force of the spring 10 is kept unchanged.
Example two:
a granulating device for a plastic extrusion granulator refers to fig. 2, fig. 3 and fig. 11, and comprises a cutter 1, a motor 2, a connecting piece 12, a cutter mounting piece, a left half housing 13 and a right half housing 14, wherein the cutter mounting piece comprises a cylinder 3, a sleeve 4, a spring 10 and a compression nut 11.
Referring to fig. 4, an external thread structure 302 and a key groove 303 are disposed on an outer wall of the cylinder 3, the key groove 303 is located below the external thread structure 302, and a key is installed in the key groove 303.
Referring to fig. 5, the inner diameter of the sleeve 4 is the same as the outer diameter of the cylinder 3, the sleeve 4 is sleeved on the cylinder 3, and a through groove matched with the key in the key groove 303 is formed on the inner wall of the sleeve 4. The outer wall of the sleeve 4 is provided with a plurality of mounting blocks 5 along the circumferential direction, the outer end face of each mounting block 5 is provided with a cylindrical hole 501, the side wall of each mounting block 5 is provided with a threaded through hole leading to the cylindrical hole 501, and a first fixing bolt 6 is mounted in each threaded through hole.
Referring to fig. 3, 5, 6, 7 and 10, a cutter mounting structure is mounted in each cylindrical hole 501 of each mounting block 5, the cutter mounting structure includes a mounting base 7 and a pressing plate 8, the mounting base 7 includes a cylindrical portion 701 and a mounting block portion 702, the diameter of the cylindrical portion 701 is the same as the diameter of the cylindrical hole 501 of the mounting block 5, the cylindrical portion 701 is inserted into the cylindrical hole 501 of the mounting block 5, the cylindrical portion 701 can rotate in the cylindrical hole 501, and tightening the first fixing bolt 6 can fix the cylindrical portion 701, that is, fix the mounting base 7. The mounting surface of the mounting block 702 is provided with a threaded hole 703, a second fixing bolt 9 is mounted in the threaded hole 703, the cutter 1 is provided with a long-strip-shaped limiting through hole 101, the pressing plate 8 is provided with a connecting through hole 801, the cutter 1 is arranged between the mounting surface of the mounting block 702 and the pressing plate 8, and the rod part of the second fixing bolt 9 penetrates through the connecting through hole 801 of the pressing plate 8 and the connecting through hole 801 of the cutter 1.
Referring to fig. 6, 7 and 10, two positioning posts 705 are disposed on the mounting surface of the mounting substrate 7, two positioning holes 802 are disposed on the pressing plate 8 and are matched with the two positioning posts 705, and when the two positioning holes 802 are respectively sleeved on the two positioning posts 705, the connecting through hole 801 on the pressing plate 8 is aligned with the threaded hole 703 on the mounting substrate 7. The arrangement is convenient for mounting and fixing the cutter 1 on the mounting block part 702 of the mounting base body 7.
Referring to fig. 3, the spring 10 is sleeved on the cylinder 3 and located above the sleeve 4. A compression nut 11 is threadedly mounted on an external thread structure 302 provided on the outer wall of the cylinder 3 for compressing the sleeve 4 by means of a spring 10.
Referring to fig. 2 and 4, the upper end of the cylinder 3 is provided with a connecting structure 301, one end of the connecting member 12 is connected to the rotating shaft of the motor 2, the end is sleeved on the rotating shaft of the motor 2 and connected to the rotating shaft of the motor 2 through a flat key and a bolt, and the other end of the connecting member 12 is connected to the connecting structure 301 of the cylinder 3 in a matching manner. The other end of the connecting piece 12 is provided with a structure matched with the connecting structure 301 of the cylinder 3, if the connecting structure 301 is a cylindrical hole structure plus a clamping jaw structure, the other end of the connecting piece 12 is a cylindrical structure and a clamping jaw structure matched with the connecting piece, and if the connecting structure 301 is a rectangular hole structure, the other end of the connecting piece 12 is a rectangular block structure matched with the connecting piece. So set up for motor 2 accessible connecting piece 12 drives drum 3 and rotates, and then drives sleeve 4 and rotates.
Referring to fig. 3, 5 and 6, an angle scale 502 is disposed on the outer end surface of the mounting block 5 and located outside the cylindrical hole 501, and an indication line 704 is disposed on the outer wall of the cylindrical portion 701 of the mounting substrate 7, and the length direction of the indication line 704 is along the axial direction of the cylindrical portion 701. Under the indicating action of the angle scales 502 and the indicating lines 704, the included angle between each cutter 1 and the surface of the discharging plate is kept consistent.
Referring to fig. 3, 8 and 9, a cutting slit 1101 is formed in the compression nut 11 along the thickness direction of the compression nut, a locking threaded hole 1102 is formed in one slit surface of the cutting slit 1101, a secondary stepped cylindrical through hole is formed in the other slit surface of the cutting slit 1101, the secondary stepped cylindrical through hole includes a first-stage cylindrical through hole 1103 and a second-stage cylindrical through hole 1104, the diameter of the first-stage cylindrical through hole 1103 is smaller than that of the second-stage cylindrical through hole 1104, the locking threaded hole 1102, the first-stage cylindrical through hole 1103 and the second-stage cylindrical through hole 1104 share a central axis, a locking bolt is installed in the locking threaded hole 1102, the head of the locking bolt is located in the second-stage cylindrical through hole 1104, and the rod penetrates through the first-stage cylindrical through hole 1103 and is screwed into the locking threaded hole 1102. After the adjustment of each cutter 1 is finished and the pressing force of the spring 10 is finished, the locking bolt is screwed down, so that the pressing nut 11 cannot be loosened during the granulation operation of the invention, the spring 10 presses each cutter 1 on the discharging plate all the time, and the pressing force of the spring 10 is kept unchanged.
Referring to fig. 11 and 12, the left half cover 13 and the right half cover 14 are semi-cylindrical, and the lower ends of the left half cover 13 and the right half cover 14 are hinged together. The upper ends of the left half housing 13 and the right half housing 14 are both provided with connecting parts, connecting holes are formed in the connecting parts, and the left half housing 13 and the right half housing 14 are connected through bolts and nuts at the connecting parts. When the cutter 1 is installed and adjusted, the left half housing 13 and the right half housing 14 are opened, and when the dicing production is performed, the upper ends of the left half housing 13 and the right half housing 14 are connected together. The upper end of the left half housing 13 and the upper end of the right half housing 14 are connected together to form a cylindrical housing, a first sleeving hole is formed in the middle of the left round surface of the cylindrical housing, the first sleeving hole of the cylindrical housing is sleeved at the discharge hole of the plastic extrusion granulator, cylindrical plastic extruded from the discharge hole of the discharge plate installed at the discharge hole of the plastic extrusion granulator enters the cylindrical housing, a second sleeving hole 15 is formed in the middle of the right round surface of the cylindrical housing, the second sleeving hole 15 is sleeved on the rotating shaft of the motor 2, the cutter 1, the connecting piece 12 and the cutter installing piece are also located in the cylindrical housing, and plastic particles cut by the cutter 1 are also located in the cylindrical housing. Half of each of the first and second housing holes 15 is provided in the left and right housing halves 13 and 14, respectively. An air inlet pipe 16 is arranged on the cylindrical surface of the left half-cover 13, and an air outlet pipe 17 is arranged on the cylindrical surface of the right half-cover 14. As shown in fig. 12, the blowing air enters the cylindrical housing through the air inlet pipe 16, and the plastic particles cut by the cutter 1 are blown out through the air outlet pipe 17.
Referring to fig. 12, a left half rubber sleeve is disposed at the second sleeving hole 15 of the left half housing 13, a right half rubber sleeve is disposed at the second sleeving hole 15 of the right half housing 14, the left half rubber sleeve and the right half rubber sleeve are both semi-circular, sealing strips 18 are disposed on inner annular walls of the left half rubber sleeve and the right half rubber sleeve, when the upper ends of the left half housing 13 and the right half housing 14 are connected together, the left half rubber sleeve and the right half rubber sleeve are combined into a circular rubber sleeve 19, and the circular rubber sleeve 19 and the sealing strips 18 are both sleeved on the rotating shaft of the motor 2. In order to leave a proper margin for machining and installation, it is inconvenient to machine the diameter of the second sleeving hole 15 slightly larger than the rotating shaft of the motor 2, which otherwise causes a problem that the rotating shaft of the motor 2 and the left and right half casings 13 and 14 rub against each other. Therefore, the diameter of the second fitting hole 15 is made larger, and the second fitting hole 15 and the motor 2 are sealed by the annular rubber sleeve 19 and the seal rib 18, so that the second fitting hole is not damaged even if the rotating shaft of the motor 2 rubs against the seal rib 18. The seal wool on the seal wool top 18 also has the problem of preventing the plastic particles cut by the cutter 1 from escaping from the rotating shaft of the motor 2.
Referring to fig. 11 and 12, the cylindrical surfaces of the left half housing 13 and the right half housing 14 are respectively provided with an observation window 26, and the operation and the dicing of each component in the left half housing 13 and the right half housing 14 can be observed through the observation window 26.
Referring to fig. 11 and 12, a tact switch 20 is disposed on the left half housing 13, the tact switch 20 is electrically connected to the motor 2 for controlling the on/off of the circuit of the motor 2, a pressing block 21 is disposed on the right half housing 14, and when the upper ends of the left half housing 13 and the right half housing 14 are connected together to form a cylindrical housing, the pressing block 21 presses the tact switch 20 to turn on the tact switch 20. So set up, when carrying out the installation and the adjustment of cutter 1, because the upper end of left half encloser 13 and right half encloser 14 has not been linked together yet, and light touch switch 20 does not switch on this moment, and motor 2 can not rotate because of the maloperation, can not take place to rotate because of motor 2 accident, leads to cutter 1 to cut the accident of hindering the people.
Referring to fig. 12, a sampling tube 22 is further disposed on the cylindrical surface of the right half housing 14, a valve 23 is disposed on the sampling tube 22, an external thread is disposed on the outer wall of one end of the sampling tube 22 away from the right half housing 14, the external thread is connected to a collecting tube 24, and a filter screen 25 is disposed at one end of the collecting tube 24 away from the sampling tube 22, so as to facilitate the air flow to be discharged from the collecting tube 24. During production, the rotating speed of the motor 2 needs to be adjusted according to the needs of customers so as to obtain plastic particles with proper granularity. Normally cut grain back, open valve 23 for during partial plastic granules pass through sampling tube 22 and get into collecting pipe 24, close valve 23 again, take off collecting pipe 24, can look over the granule condition that cutter 1 surely goes out, and then carry out the increase of 2 rotational speeds of motor and the regulation that reduces through the converter according to actual conditions, until obtaining the plastic granules that the granularity accords with the customer requirement. Therefore, through the arrangement of the sampling pipe 22, the valve 23 and the collecting pipe 24, the sampling of plastic particles is convenient, and a basis is provided for the rotation speed regulation of the motor 2.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a plastics extrusion granulator is with cutting grain device, includes cutter (1), motor (2) and cutter installed part, the one end of cutter installed part links to each other with motor (2), and the other end is provided with a plurality of cutter mounting structures along its circumference direction, respectively installs a cutter (1), its characterized in that on every cutter mounting structure: the cutter mounting structure is hinged to the cutter mounting piece, a first fixing bolt (6) is arranged on the cutter mounting piece, and the cutter mounting structure can be fixed by screwing the first fixing bolt (6).
2. The pelletizing device for plastic extrusion pelletizer according to claim 1, characterized in that: the cutter mounting piece comprises a cylinder (3), a sleeve (4), a spring (10) and a compression nut (11);
an external thread structure (302) and a key groove (303) are arranged on the outer wall of the cylinder (3), the key groove (303) is positioned below the external thread structure (302), and a key is arranged in the key groove (303);
the inner diameter of the sleeve (4) is the same as the outer diameter of the cylinder (3), the sleeve (4) is sleeved on the cylinder (3), and a through groove matched with a key in the key groove (303) is formed in the inner wall of the sleeve (4); a plurality of mounting blocks (5) are arranged on the outer wall of the sleeve (4) along the circumferential direction of the sleeve, cylindrical holes (501) are formed in the outer end faces of the mounting blocks (5), threaded through holes leading to the cylindrical holes (501) are formed in the side walls of the mounting blocks (5), and the first fixing bolts (6) are mounted in the threaded through holes;
the spring (10) is sleeved on the cylinder (3) and is positioned above the sleeve (4); the compression nut (11) is installed on an external thread structure (302) arranged on the outer wall of the cylinder (3) in a threaded mode and used for compressing the sleeve (4) through a spring (10);
the cutter mounting structure comprises a mounting base body (7) and a pressing plate (8), wherein the mounting base body (7) comprises a cylindrical part (701) and a mounting block part (702), the diameter of the cylindrical part (701) is the same as the aperture of a cylindrical hole (501) of a mounting block (5), and the cylindrical part (701) is inserted into the cylindrical hole (501) of the mounting block (5); the mounting structure is characterized in that a threaded hole (703) is formed in the mounting surface of the mounting block portion (702), a second fixing bolt (9) is mounted in the threaded hole (703), a long limiting through hole (101) is formed in the cutter (1), a connecting through hole (801) is formed in the pressing plate (8), the cutter (1) is arranged between the mounting surface of the mounting block portion (702) and the pressing plate (8), and the rod portion of the second fixing bolt (9) penetrates through the connecting through hole (801) of the pressing plate (8) and the connecting through hole (801) of the cutter (1).
3. The pelletizing device for the plastic extrusion pelletizer according to claim 2, characterized in that: still include connecting piece (12), the upper end of drum (3) is provided with connection structure (301), the one end of connecting piece (12) links to each other with the pivot of motor (2), and the other end links to each other with connection structure (301) cooperation of drum (3), motor (2) pass through connecting piece (12) and drive drum (3) and rotate.
4. The pelletizing device for the plastic extrusion pelletizer according to claim 3, characterized in that: an angle scale (502) is arranged on the outer end face of the mounting block (5) and located on the outer side of the cylindrical hole (501), an indicating line (704) is arranged on the outer wall of the cylindrical portion (701) of the mounting base body (7), and the length direction of the indicating line (704) is along the axial direction of the cylindrical portion (701).
5. The pelletizing device for the plastic extrusion pelletizer according to claim 4, characterized in that: two positioning columns (705) are arranged on the mounting surface of the mounting base body (7), two positioning holes (802) matched with the two positioning columns (705) are arranged on the pressing plate (8), and when the two positioning holes (802) are respectively sleeved on the two positioning columns (705), the connecting through holes (801) in the pressing plate (8) are aligned with the threaded holes (703) in the mounting base body (7).
6. The pelletizing device for the plastic extrusion pelletizer according to claim 2, characterized in that: a cutting slit (1101) is arranged on the compression nut (11) along the thickness direction of the compression nut, a locking threaded hole (1102) is arranged on one slit surface of the cutting slit (1101), a secondary step cylindrical through hole is arranged on the other seam surface of the cutting seam (1101) and comprises a primary cylindrical through hole (1103) and a secondary cylindrical through hole (1104), the aperture of the first-stage cylindrical through hole (1103) is smaller than that of the second-stage cylindrical through hole (1104), the locking threaded hole (1102), the first-stage cylindrical through hole (1103) and the second-stage cylindrical through hole (1104) are arranged on the same central axis, a locking bolt is arranged in the locking threaded hole (1102), the head of the locking bolt is positioned in the second-stage cylindrical through hole (1104), the rod part passes through the first-stage cylindrical through hole (1103) and is screwed into the locking threaded hole (1102).
7. The pelletizer apparatus for plastic extrusion granulator according to any of claims 1-6, wherein: the left half encloser (13) and the right half encloser (14) are hinged together at the lower ends, the left half encloser (13) and the right half encloser (14) are of semi-cylindrical structures, the upper ends of the left half encloser (13) and the right half encloser (14) are provided with connecting parts, connecting holes are formed in the connecting parts, and the left half encloser (13) and the right half encloser (14) are connected through bolts and nuts at the connecting parts; the upper ends of the left half housing (13) and the right half housing (14) are connected together to form a cylindrical housing, a first sleeving hole is formed in the middle of the left circular surface of the cylindrical housing, the first sleeving hole of the cylindrical housing is sleeved at a discharge port of the plastic extrusion granulator, a second sleeving hole (15) is formed in the middle of the right circular surface of the cylindrical housing, the second sleeving hole (15) is sleeved on a rotating shaft of the motor (2), and the cutter mounting piece and the cutter (1) are both located in the cylindrical housing; an air inlet pipe (16) is arranged on the cylindrical surface of the left half cover shell (13), and an air outlet pipe (17) is arranged on the cylindrical surface of the right half cover shell (14).
8. The pelletizing device for plastic extrusion pelletizer according to claim 7, characterized in that: the left half housing (13) is provided with a left half rubber sleeve at a second sleeving hole (15), the right half housing (14) is provided with a right half rubber sleeve at the second sleeving hole (15), the left half rubber sleeve and the right half rubber sleeve are both semicircular, sealing strips (18) are arranged on the inner annular walls of the left half rubber sleeve and the right half rubber sleeve, when the upper ends of the left half housing (13) and the right half housing (14) are connected together, the left half rubber sleeve and the right half rubber sleeve are combined into a circular rubber sleeve (19), and the circular rubber sleeve (19) and the sealing strips (18) are both sleeved on a rotating shaft of the motor (2); and cylindrical surfaces of the left half cover shell (13) and the right half cover shell (14) are respectively provided with an observation window (26).
9. The pelletizing device for plastic extrusion pelletizer according to claim 7, characterized in that: the light touch switch is characterized in that a light touch switch (20) is arranged on the left half housing (13), the light touch switch (20) is electrically connected with the motor (2) and used for controlling the on-off of a circuit of the motor (2), a pressing block (21) is arranged on the right half housing (14), and when the upper ends of the left half housing (13) and the right half housing (14) are connected together to form a cylindrical housing, the pressing block (21) presses the light touch switch (20) so that the light touch switch (20) is conducted.
10. The pelletizing device for plastic extrusion pelletizer according to claim 7, characterized in that: still be provided with sampling tube (22) on the face of cylinder of right half housing (14), be provided with valve (23) on sampling tube (22), be provided with the external screw thread on the outer wall of the one end of right half housing (14) is kept away from in sampling tube (22), and this end threaded connection has collecting pipe (24), the one end that collecting pipe (22) were kept away from in collecting pipe (24) is provided with filter screen (25).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110652607.8A CN113306040A (en) | 2021-06-11 | 2021-06-11 | Grain cutting device for plastic extrusion granulator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110652607.8A CN113306040A (en) | 2021-06-11 | 2021-06-11 | Grain cutting device for plastic extrusion granulator |
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| CN113306040A true CN113306040A (en) | 2021-08-27 |
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| CN202110652607.8A Pending CN113306040A (en) | 2021-06-11 | 2021-06-11 | Grain cutting device for plastic extrusion granulator |
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Application publication date: 20210827 |