CN220409309U - Underwater granulator water chamber capable of eliminating sticking knife - Google Patents

Abstract

The application discloses can eliminate underwater pelletizer hydroecium of sticking the sword relates to underwater pelletizer technical field. Not only can make the big vortex at blade disc center reduce, can make the water pressure around the cutter strengthen moreover, make it reduce and glue the sword, discharge outside the hydroecium fast, improve work efficiency. The underwater pelletizer water chamber comprises a pelletizer chamber; the cutter disc structure is rotationally connected in the granulating chamber; the cutter head structure comprises a cutter head frame and a plurality of cutters arranged on the cutter head frame; the end face of the cutterhead frame, which is connected with the cutter, is provided with a plurality of water guide holes, and a water guide ring groove is arranged in the cutterhead frame; the cutter head frame is provided with a central hole, and the side wall of the central hole is provided with a plurality of radial water channels communicated with the water guide ring groove; the end surface of the cutter, which contacts the cutter disc frame, is provided with a cutter water inlet hole; a cutter flow channel extending along the length direction of the cutter is arranged in the cutter; the thick side end of the cutter is provided with a plurality of cutter water outlets which are sequentially distributed along the length direction of the cutter; the cutter runner is communicated with the cutter water inlet hole and the cutter water outlet hole; the cutter water inlet hole is communicated with the water guide hole.

Description

Underwater granulator water chamber capable of eliminating sticking knife

Technical Field

The application relates to the technical field of underwater pelletizers, in particular to an underwater pelletizer water chamber capable of eliminating sticking knives.

Background

An underwater pelletizer is an apparatus for processing polymer feed stock, such as polyolefin, into pellets. The cutter head structure is an important part of the underwater pelletizer and functions to chop the polymer feedstock into pellets of the desired size for subsequent processing and use. In order to prolong the service life of the cutter, the cutter of the underwater pelletizer is usually made of high-speed steel or hard alloy and other materials, and has higher hardness and wear resistance. The configuration and shape of the cutters will vary depending on the type of polymer being processed, the size and shape of the polymer, etc., to ensure optimal cutting results and efficiency. At present, most of water inlets and water outlets of the underwater pelletizer are straight in and straight out, and the cutter head is not provided with water holes in structure, so that the center of the cutter head of the underwater pelletizer generates large vortex in the working process, polymer is further caused to adhere to a cutter, polymer particles cannot be rapidly discharged out of a pelletizer water chamber, the cutter is blocked, the motor is damaged, and the efficiency is greatly reduced.

Disclosure of Invention

The embodiment of the application provides a can eliminate underwater granulator hydroecium of sticking the sword, under the prerequisite that can cut into the granule of workable with polyolefin filament form, not only can make the big vortex at blade disc center reduce, can make the water pressure reinforcing around the cutter moreover to increase stronger power for the polyolefin is cut the grain, make it reduce to stick the sword, discharge outside the hydroecium fast, improve work efficiency greatly.

In order to achieve the above purpose, embodiments of the present application provide an underwater pelletizer water chamber capable of eliminating sticking of a cutter, including a pelletizer chamber; the cutter disc structure is rotationally connected in the granulating chamber; the cutter head structure comprises a cutter head frame and a plurality of cutters arranged on the cutter head frame; the cutter head frame is connected with the end face of the cutter blade, a plurality of water guide holes are formed in the end face of the cutter blade, and water guide ring grooves communicated with the water guide holes are formed in the cutter head frame; the center of the cutterhead frame is provided with a center hole, and the side wall of the center hole is provided with a plurality of radial water channels communicated with the water guide ring groove; a cutter water inlet hole is formed in the end face, contacted with the cutter disc frame, of the cutter; a cutter flow channel extending along the length direction of the cutter is arranged in the cutter; the thick side end of the cutter is provided with a plurality of cutter water outlets which are sequentially distributed along the length direction of the cutter; the cutter runner is communicated with the cutter water inlet hole and the cutter water outlet hole; the cutter water inlet hole is communicated with the water guide hole.

Further, a transmission shaft is arranged between the grain cutting chamber and the cutter disc frame; the right end of the transmission shaft is connected with the grain cutting chamber through a bearing, and the left end of the transmission shaft is connected with the cutter head frame.

Further, the granulating chamber is of a hollow structure; a connecting sleeve is arranged in the granulating chamber; the outer side surface of the connecting sleeve is in sealing connection with the inner wall of the granulating chamber, and the bearing is arranged between the inner hole of the connecting sleeve and the right end of the transmission shaft.

Further, the cutterhead frame comprises a connecting disc; the back side of the connecting disc protrudes outwards to form a connecting part; a step hole is formed in the connecting disc; a through hole is formed in the connecting part; the left end of the transmission shaft passes through the through hole and the step hole and then is connected with the end face of the connecting disc.

Further, the transmission shaft comprises an optical axis and a connecting seat which are axially connected in series; a central water hole is formed in the connecting seat; the side wall of the central water hole is provided with a plurality of radial water holes communicated with the outside; the connecting seat comprises a connecting plate, an overcurrent section and a connecting section which are sequentially arranged along the axial direction; one part of the central water hole is positioned on the connecting plate, and the other part of the central water hole is positioned on the overflow section; the radial water hole is positioned on the overflow section; the connecting plate is connected to the end part of the connecting disc through a screw; the connecting section is connected with the optical axis through a taper pin.

Further, a plurality of cutter connecting hole groups are uniformly distributed on the end face of the connecting disc along the circumferential direction; the number of the cutter connecting hole groups is equal to that of the water guide holes; each cutter connecting hole group comprises two cutter connecting holes, the two cutter connecting holes are respectively positioned at two sides of the corresponding water guide hole, and an included angle between the center of the connecting disc and the connecting line of the two cutter connecting holes is 23 degrees; the cutter is also provided with two cutter bolt holes which are communicated in the thickness direction; the positions of the two cutter bolt holes are in one-to-one correspondence with the positions of the two cutter connecting holes; the bolts sequentially pass through the cutter bolt holes and the cutter connecting holes and then are fastened with nuts.

Further, the number of the cutter connection hole groups is twenty-four.

Further, the lower end of the granulating chamber is provided with a water inlet, and the upper end of the granulating chamber is provided with a water outlet; the water inlet and the horizontal plane form a 60-degree inclined angle to the lower wall of the grain cutting chamber, and the water outlet is inclined outwards by 5 degrees towards the direction of the port close to the cutterhead structure.

Further, a feeding template is arranged at a port of the grain cutting chamber, which is close to the cutter disc structure; a plurality of template grooves are uniformly distributed on the feeding template along the circumferential direction; the bottom of the template groove is provided with a template feeding hole; the die plate groove is arranged close to the edge of the feeding die plate.

Further, the outer side surface of the connecting sleeve is in sealing connection with the inner wall of the granulating chamber through an annular connecting plate, and the end surface of the connecting sleeve is lower than the end surface of the granulating chamber.

Compared with the prior art, the application has the following beneficial effects:

1. according to the underwater pelletizer water chamber capable of eliminating sticking of the cutter, the water guide groove and the water channel are formed in the cutter disc frame, water flow can enter the cutter rapidly, vortex in the center of the cutter disc frame is reduced, water outlet holes are formed in the thick wall side of the cutter disc, back water pressure of the cutter is increased, the cutter sticking performance of polyolefin dicing is reduced, the polyolefin dicing is enabled to leave the cutter rapidly, the dicing chamber is discharged as soon as possible, and granulating efficiency of the underwater pelletizer is greatly improved.

2. According to the embodiment of the application, the underwater pelletizer water chamber capable of eliminating sticking of the cutter can reduce inlet jet flow by changing the angle of the water inlet of the pelletizer, so that polyolefin pellets can rotate along with the cutter head, and relative movement between the polyolefin pellets and the cutter head is reduced; by adding an inclined angle to the water outlet of the granulating chamber, the polyolefin granulating device is more beneficial to rapidly discharging polyolefin granules out of the granulating chamber.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a front cross-sectional view of an underwater pelletizer water chamber with sticky knives eliminated in accordance with an embodiment of the present application;

FIG. 2 is a schematic perspective view of an angle of a water chamber of an underwater pelletizer according to the present embodiment of the present application;

FIG. 3 is a schematic view of another perspective view of the water chamber of the underwater pelletizer according to the present embodiment of the present application with the sticking knife eliminated;

FIG. 4 is a schematic view showing the internal structure of a water chamber of an underwater pelletizer capable of eliminating sticking knives according to the embodiment of the present application;

FIG. 5 is a schematic perspective view of a cutterhead holder in a water chamber of an underwater pelletizer according to an embodiment of the present application for eliminating sticking;

FIG. 6 is a side view of a cutterhead holder in an underwater pelletizer water chamber that eliminates sticking of knives according to an embodiment of the present application;

FIG. 7 is a cross-sectional view of a cutterhead holder in an underwater pelletizer water chamber that eliminates sticking of knives according to an embodiment of the present application;

FIG. 8 is a schematic perspective view of a cutter in a water chamber of an underwater pelletizer according to the present embodiment of the present application to eliminate sticking;

FIG. 9 is a cross-sectional view of a cutter in an underwater pelletizer water chamber that eliminates sticking of the cutter according to the embodiments of the present application;

FIG. 10 is an enlarged view of a portion of the portion I of FIG. 9;

FIG. 11 is a schematic perspective view of a drive shaft in a water chamber of an underwater pelletizer according to the present embodiment that eliminates sticking;

FIG. 12 is a cross-sectional view of a drive shaft in an underwater pelletizer water chamber that eliminates sticking in embodiments of the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; the specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

Referring to fig. 1, an embodiment of the present application provides an underwater pelletizer water chamber capable of eliminating sticking, comprising a pelletizer chamber 1, a cutter head structure 2 and a feed die plate 3. Wherein, be equipped with transmission shaft 4 between grain cutting room 1 and the blade disc structure 2, the right-hand member and the grain cutting room 1 of transmission shaft 4 rotate to be connected, and the left end is connected with blade disc structure 2 can dismantle. The feeding template 3 is connected to the left end port of the granulating chamber 1 and is positioned outside the cutter head structure 2.

Specifically, the granulating chamber 1 is of a hollow cylinder structure. The lower end of the grain cutting chamber 1 is provided with a water inlet 11, and the upper end is provided with a water outlet 12. The water inlet 11 and the water outlet 12 are both positioned on the outer side surface of the granulating chamber 1, the water inlet 11 is inclined at an angle of 60 degrees with the horizontal plane and is inclined at the lower wall of the granulating chamber 1, and the water outlet 12 is inclined at an angle of 5 degrees outwards towards the port direction close to the cutterhead structure 2. In this way, the inclination of the water inlet 11 reduces the inlet jet flow, the pellets can better rotate along with the cutter disc structure 2 and are conveyed to the water outlet 12, and the inclination of the water outlet 12 is more beneficial to the discharge of the polyolefin pellets out of the underwater pelletizer water chamber.

Referring to fig. 1 and 2, a connecting sleeve 13 is further arranged in the granulating chamber 1, the middle part of the outer side surface of the connecting sleeve 13 is in sealing connection with the inner wall of the granulating chamber 1 through an annular connecting plate 14, and the end surface of the connecting sleeve 13 is lower than the end surface of the granulating chamber 1. The annular web 14 has a lower inner end than an upper outer end and is funnel-shaped. The bearing 5 is supported between the inner bore of the connecting sleeve 13 and the right end of the drive shaft 4 to reduce friction between the two.

Referring to fig. 4, the cutterhead structure 2 includes a cutterhead frame 21 and twenty-four cutters 22 attached to the cutterhead frame 21. Specifically, referring to fig. 6, the head holder 21 includes a land 211 and a connection portion 212 formed to protrude outward from the rear side of the land 211. Referring to fig. 1, 5 and 7, the cutterhead holder 21 is provided with a center hole including a stepped hole 213 provided at the center of the connection pad 211 and a through hole 219 provided at the center of the connection portion 212.

Referring to fig. 5 and 7, twenty-four cutter connection hole groups 216 are uniformly distributed in the circumferential direction on the end surface of the connection pad 211 to which the cutter 22 is connected. Each cutter connection hole group 216 comprises two cutter connection holes 217, and the included angle between the center of the connecting disc 211 and the connecting line of the two cutter connection holes 217 is 23 degrees.

Twenty four water guide holes 210 uniformly distributed along the circumferential direction are also arranged on the end surface of the connecting disc 211 connected with the cutter 22, and the water guide holes 210 are positioned between two cutter connecting holes 217 of the same group. The inside of the connection disc 211 is provided with a water guide ring groove 214 communicated with twenty-four water guide holes 210, the side wall of a step hole 213 of the connection disc 211 is provided with a plurality of radial water channels 215 communicated with the water guide ring groove 214, and the radial water channels 215 are uniformly distributed along the circumferential direction of the connection disc 211.

Referring to fig. 8 to 10, two cutter bolt holes 221 penetrating in the thickness direction are further provided in the cutter 22, the positions of the two cutter bolt holes 221 correspond to the positions of the two cutter connection holes 217 in the connection plate 211 one by one, and bolts pass through the cutter bolt holes 221 and the cutter connection holes 217 in sequence and then are fastened with nuts.

The end surface of the cutter 22 contacting the connecting disc 211 is provided with a cutter water inlet 222. The cutter 22 is internally provided with a cutter flow passage 223 extending along the length direction of the cutter 22, the thick side end of the cutter 22 is provided with a plurality of cutter water outlet holes 224 sequentially distributed along the length direction of the cutter 22, and the cutter water outlet holes 224 extend along the width direction of the cutter 22 and are blind holes. The cutter flow path 223 communicates the cutter water inlet hole 222 with the cutter water outlet hole 224. The cutter water inlet holes 222 communicate with the corresponding water guide holes 210.

Referring to fig. 1, the right end of the driving shaft 4 is coupled to the end surface of the coupling disc 211 by four bolts after passing through the through-hole 219 and the stepped hole 213.

Specifically, referring to fig. 11 and 12, the transmission shaft 4 includes an optical axis 41 and a connection seat 42 connected in series in the axial direction. The connecting seat 42 is internally provided with a central water hole 421, and the side wall of the central water hole 421 is provided with a plurality of radial water holes 422 communicated with the outside. The connection seat 42 includes a connection plate 423, an overcurrent section 424, and a connection section 425 that are sequentially disposed in the axial direction. A portion of the central water bore 421 is located on the connection plate 423 and another portion is located on the flow passage 424, and the radial water bore 422 is located on the flow passage 424. The connection plate 423 is connected to the end of the connection plate 211 by four bolts. Specifically, referring to fig. 5, four first end surface connection holes 218 are provided on the end surface of the connection pad 211, and the end surface connection holes 218 are uniformly distributed on the outer circumference of the stepped hole 213. Referring to fig. 11, four second end surface connection holes 426 are provided in the end surfaces of the connection plate 423. Referring to fig. 1, a bolt is fastened to the connection pad 211 through the second end surface connection hole 426 of the connection plate 423. The connecting section 425 is connected with the right end of the optical axis 41 through a taper pin, and the left end of the optical axis 41 extends out of the connecting sleeve 13 and is connected with a motor (not shown in the figure).

Referring to fig. 3, a plurality of template grooves 31 are uniformly distributed on the feeding template 3 along the circumferential direction, template feeding holes 32 are formed in the bottoms of the template grooves 31, and the template grooves 31 are arranged close to the edges of the feeding template 3.

The working principle of the underwater pelletizer water chamber capable of eliminating sticking knives is as follows:

when the underwater pelletizer is used, firstly, the motor of the underwater pelletizer is started, the motor drives the transmission shaft 4 to further enable the cutter disc frame 21 and the cutter 22 in the pelletizer chamber 1 to rotate at a high speed, when the whole equipment is in normal operation, water is fed through the water inlet 11 of the embodiment of the application, and meanwhile, the hot melting furnace connected with the left side installation of the embodiment of the application can feed heated and melted polyolefin plastic into the water chamber of the underwater pelletizer through the template feeding hole 32 in the feeding template 3. At this time, polyolefin plastics form the thin filiform, cut into cylindric granule through the cutter 22 of high-speed rotation in the granulator hydroecium under water, at this moment, the polyolefin granule of cutting can be impacted to the water that this application embodiment water inlet 11 lets in to send out the polyolefin granule from delivery port 12 and get into the drying chamber and dry, wherein, the adsorption capacity that guide tank, centre bore and the water course on the blade disc frame 21 can make the blade disc frame 21 reduces, the vortex that reduces the blade disc frame 21 center formation, and the cutter apopore of cutter 22 lateral wall can increase the back water pressure of cutter 22, and then make the quick discharge grain cutting room 1 of polyolefin grain cutting.

According to the embodiment of the application, polyolefin filament-shaped polymers generated in the heating and melting furnace can be cut into particles, in the cutting process, the polyolefin particle sticking knife can be eliminated, particle cutting accumulation is prevented, water can enter the cutting knife very fast, the impact on the polyolefin particles is increased, and then the polyolefin particles are discharged out of the particle cutting water chamber fast. The granulator device reduces particle accumulation generated by sticking the cutters, greatly accelerates the speed of discharging the cut particles out of the water chamber, fundamentally solves the cutter clamping phenomenon, and improves the production efficiency of polyolefin cutting.

The foregoing is merely a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. The water chamber of the underwater pelletizer capable of eliminating sticking is characterized by comprising a pelletizer chamber; the cutter disc structure is rotationally connected in the granulating chamber; the cutter head structure comprises a cutter head frame and a plurality of cutters arranged on the cutter head frame; the cutter head frame is connected with the end face of the cutter blade, a plurality of water guide holes are formed in the end face of the cutter blade, and water guide ring grooves communicated with the water guide holes are formed in the cutter head frame; the center of the cutterhead frame is provided with a center hole, and the side wall of the center hole is provided with a plurality of radial water channels communicated with the water guide ring groove; a cutter water inlet hole is formed in the end face, contacted with the cutter disc frame, of the cutter; a cutter flow channel extending along the length direction of the cutter is arranged in the cutter; the thick side end of the cutter is provided with a plurality of cutter water outlets which are sequentially distributed along the length direction of the cutter; the cutter runner is communicated with the cutter water inlet hole and the cutter water outlet hole; the cutter water inlet hole is communicated with the water guide hole.

2. The underwater pelletizer water chamber capable of eliminating sticking of knives as set forth in claim 1 wherein a drive shaft is provided between said pelletizer chamber and said cutterhead frame; the right end of the transmission shaft is connected with the grain cutting chamber through a bearing, and the left end of the transmission shaft is connected with the cutter head frame.

3. The underwater pelletizer water chamber with the sticking knife eliminated as claimed in claim 2, wherein said pelletizer chamber is hollow; a connecting sleeve is arranged in the granulating chamber; the outer side surface of the connecting sleeve is in sealing connection with the inner wall of the granulating chamber, and the bearing is arranged between the inner hole of the connecting sleeve and the right end of the transmission shaft.

4. The underwater pelletizer water chamber with sticking elimination of knives of claim 3 wherein said cutterhead rack includes a connecting disc; the back side of the connecting disc protrudes outwards to form a connecting part; a step hole is formed in the connecting disc; a through hole is formed in the connecting part; the left end of the transmission shaft passes through the through hole and the step hole and then is connected with the end face of the connecting disc.

5. The underwater pelletizer water chamber with sticking elimination function according to claim 4, wherein the transmission shaft comprises an optical axis and a connecting seat which are axially connected in series; a central water hole is formed in the connecting seat; the side wall of the central water hole is provided with a plurality of radial water holes communicated with the outside; the connecting seat comprises a connecting plate, an overcurrent section and a connecting section which are sequentially arranged along the axial direction; one part of the central water hole is positioned on the connecting plate, and the other part of the central water hole is positioned on the overflow section; the radial water hole is positioned on the overflow section; the connecting plate is connected to the end part of the connecting disc through a screw; the connecting section is connected with the optical axis through a taper pin.

6. The underwater pelletizer water chamber capable of eliminating sticking knives of claim 5, wherein a plurality of cutter connecting hole sets are circumferentially uniformly distributed on the end surface of the connecting disc; the number of the cutter connecting hole groups is equal to that of the water guide holes; each cutter connecting hole group comprises two cutter connecting holes, the two cutter connecting holes are respectively positioned at two sides of the corresponding water guide hole, and an included angle between the center of the connecting disc and the connecting line of the two cutter connecting holes is 23 degrees; the cutter is also provided with two cutter bolt holes which are communicated in the thickness direction; the positions of the two cutter bolt holes are in one-to-one correspondence with the positions of the two cutter connecting holes; the bolts sequentially pass through the cutter bolt holes and the cutter connecting holes and then are fastened with nuts.

7. The underwater pelletizer water chamber having sticking elimination of knives of claim 6 wherein the number of knife attachment hole sets is twenty four.

8. The underwater pelletizer water chamber capable of eliminating sticking of a knife according to claim 1, wherein the lower end of the pelletizer chamber is provided with a water inlet, and the upper end is provided with a water outlet; the water inlet and the horizontal plane form a 60-degree inclined angle to the lower wall of the grain cutting chamber, and the water outlet is inclined outwards by 5 degrees towards the direction of the port close to the cutterhead structure.

9. The underwater pelletizer water chamber capable of eliminating sticking of knives as in claim 1 wherein a feed die plate is provided at a port of said pelletizer chamber adjacent said cutterhead structure; a plurality of template grooves are uniformly distributed on the feeding template along the circumferential direction; the bottom of the template groove is provided with a template feeding hole; the die plate groove is arranged close to the edge of the feeding die plate.

10. The underwater pelletizer water chamber capable of eliminating sticking knives according to claim 3, wherein the outer side surface of the connecting sleeve is in sealing connection with the inner wall of the pelletizer chamber through an annular connecting plate, and the end surface of the connecting sleeve is lower than the end surface of the pelletizer chamber.