Summary of the invention
In view of this, the present invention is intended to solve in prior art, in the process of carrying out plastic extruding pelletization, occurs that cutting knife is stuck, the technical problems such as granulation is of poor quality.
The invention provides a kind of plastic granulating device, comprising: movable pulley; Guide groove, comprises charging aperture and discharging opening, and wherein said charging aperture and described movable pulley adjoin; Limited post, is arranged on described guide groove; Transmission pinch roller, is arranged at the discharge outlet of described guide groove; Cutting knife, be arranged at the output of described cylinder type pinch roller, and described output aims at the central sections of described cutting knife.
Further, residing for the charging aperture of described guide groove, plane is lower than the transmission tangent plane of described movable pulley.
Further, residing for the discharging opening of described guide groove, plane is parallel with described transmission pinch roller center tangent plane.
Further, described transmission pinch roller is cylinder type pinch roller.
Further, described cutting knife is arranged at the discharge end of described transmission pinch roller, and has gap with described cylinder type pinch roller.
The present invention also provides a kind of plastic granulating method, and it comprises: dried up through water cooling by plastic strip, sends on movable pulley; By the rotation of described movable pulley, described plastic strip is sent into guide groove and is arranged at the limited post clamping on described guide groove; Described plastic strip is transferred to cylinder type pinch roller, under the traction of described cylinder type pinch roller and make described plastic strip keep with cutter blade central termination touch; Utilize described cutting knife that plastic strip is cut into plastic pellet of uniform size.
In sum, plastic granulating device provided by the invention and plastic granulating method, solve that plastic extruding pelletization efficiency in prior art is low, the ropy problem of masterbatch, what after applying this device and method, plastic strip can be stable enters cutting machine, avoid the marginal position that material strip moves on to cutting knife in cutting process, cause stuck cutting knife, or the rectangular grain that appearance is not cut off completely.In addition, evenly and not stuck cutting knife, this method is easy and simple to handle, high efficiency for the particle size cut out after adding limited post, applies extensively.
Detailed description of the invention
For making object of the present invention, feature becomes apparent, and is further described the specific embodiment of the present invention below in conjunction with accompanying drawing.
Refer to Fig. 1, it is depicted as the structural representation of the plastic granulating device that one embodiment of the invention provides.
This plastic granulating device, comprising: movable pulley 110; Guide groove 120, comprises charging aperture 121 and discharging opening 122, and wherein said charging aperture 121 adjoins with described movable pulley 110; Limited post 130, is arranged on described guide groove 120; Transmission pinch roller 140, is arranged at discharging opening 122 place of described guide groove 120; Cutting knife 150, is arranged at the output of described transmission pinch roller 140, and described output aims at the central sections of described cutting knife 150.
Utilize this plastic granulating device, enable plastic strip stable enter cutting machine, and utilize limited post to carry out spacing to the plastic strip in transport process, avoid the problems such as the stuck cutting knife that marginal position that plastic strip moves on to cutting knife in cutting process causes, ensure that the quality of granulation.
In embodiments of the present invention, plane residing for the charging aperture of described guide groove, lower than the transmission tangent plane of described movable pulley, avoids and is worn bottom guide groove in Long-Time Service process, ensure that the contact cutting knife central authorities that plastic strip can be stable.
In embodiments of the present invention, plane residing for the discharging opening of described guide groove is parallel with described transmission pinch roller center tangent plane, makes plastic strip obtain transmitting the uniform traction of pinch roller, making plastic strip being pulled in process, not easily producing skew.
In embodiments of the present invention, described transmission pinch roller is cylinder type pinch roller, but the present invention is not limited thereto.
In embodiments of the present invention, described cutting knife is arranged at the discharge end of described transmission pinch roller, and with described cylinder type pinch roller, there is gap, thus, under the traction of described transmission pinch roller, drive plastic strip to contact with cutting knife cut surface, well can control the length of charging, ensure that the uniformity of granulation, improve the quality of granulation.
In order to clearly explain the present invention, the concrete running of this plastic granulating device is described below in conjunction with concrete grammar.
Refer to Fig. 2, it is depicted as the method flow diagram of the plastic granulating method that another embodiment of the present invention provides.
This plastic granulating method, comprises the following steps:
Step S210: dried up through water cooling by plastic strip, sends on movable pulley.
By this step, make plastic strip according to being suitable for cutting.
Step S220: by the rotation of described movable pulley, sends described plastic strip into guide groove and is arranged at the limited post clamping on described guide groove;
Specifically, plane residing for the charging aperture of described guide groove, lower than the transmission tangent plane of described movable pulley, avoids and is worn bottom guide groove in Long-Time Service process.
Step S230: described plastic strip is transferred to cylinder type pinch roller, under the traction of described cylinder type pinch roller and make described plastic strip keep with cutter blade central termination touch;
In this step, plane residing for the discharging opening of described guide groove is parallel with described cylinder type pinch roller center tangent plane, makes plastic strip obtain the uniform tractive force of cylinder type pinch roller, making plastic strip being pulled in process, not easily producing skew.
Step S240: utilize described cutting knife that plastic strip is cut into plastic pellet of uniform size.
In this step, the output of described cylinder type pinch roller aims at the central sections of described cutting knife, thus ensure that the accuracy that plastic strip transmits.
In sum, the plastic granulating device that the embodiment of the present invention provides and plastic granulating method, solve that plastic extruding pelletization efficiency in prior art is low, the ropy problem of masterbatch, what after applying this device and method, plastic strip can be stable enters cutting machine, avoid the marginal position that material strip moves on to cutting knife in cutting process, cause stuck cutting knife, or the rectangular grain that appearance is not cut off completely.In addition, evenly and not stuck cutting knife, this method is easy and simple to handle, high efficiency for the particle size cut out after adding limited post, applies extensively.
Although the present invention discloses as above with preferred embodiment; so itself and be not used to limit the present invention; have in any art and usually know the knowledgeable; without departing from the spirit and scope of the present invention; when being used for a variety of modifications and variations, therefore protection scope of the present invention is when being as the criterion depending on those as defined in claim.