A kind of feeding hopper with material crushing function
Technical field
The present invention relates to extruder equipment technical field, relate in particular to a kind of feeding hopper with material crushing function.
Background technology
The main frame of plastic extruder is extruding machine, and it is comprised of extrusion system, transmission system and heating and cooling system.Plastic extruder material loading adopts automatic metering system at present, plastic cement and powder are all stored in large-scale feeding hopper, and institute's storing material, is needed only in principle feeding hopper and also has material to extrusion equipment feeding by automatic metering system, produce and just can continue, therefore keep feeding hopper to have material very crucial.Existing feeding hopper volume is large, disposablely pours a large amount of materials into, utilizes Unpowered gravity to enter from top to bottom in the charging aperture of plastic extruder.But, material also no longer carries out the break process of material after entering into feeding hopper, this just makes the material of larger particles after entering extruder, easily cause the melt process of material more difficult, and the screw rod in barrel is also difficult to oarse-grained material to push smoothly, and then cause the difficulty of extruding of extruder to increase.Simultaneously, because a large amount of materials is piled up in feeding hopper, this feeding style easily causes the discharging opening place feed blocking of feeding hopper, form " bridge formation " phenomenon, and then affect the normal feeding of feeding hopper, thereby make the idle running of plastic extruder fracture, production cannot continue, on affecting Hen great , manufacturer the service life of screw of plastic extruder, machine barrel, must outfit special messenger stir in hopper, the fluctuation of feeding effect is very large simultaneously.And the forced feed of existing employing spiral press-down type, in feeding hopper, all use up and down spiral pressing structure, not only often because material size is uneven, block, and the power consumption of the spiral binder process of long distance is higher, more easily cause temperature in feeding hopper raise and make material stick into bulk, be difficult to feeding.
Summary of the invention
The object of the invention is to propose a kind of feeding hopper with material crushing function, the material that this feeding hopper can quick crashing larger particles, is convenient to extruding of extruder.
For reaching this object, the present invention by the following technical solutions:
A feeding hopper with material crushing function, comprises bucket body, and described bucket body comprises the storing section of back taper and the discharging section of annular, and described storing section is coaxial setting with described discharging section, the top of described storing section is provided with cover plate, described cover plate is provided with charging aperture, the top of described cover plate is provided with drive motors, described drive motors connects one and stretches into the inner main shaft arranging of described bucket body, on described main shaft, be arranged at intervals with many group material crushing devices and the loose blade construction of many groups, described material crushing device is positioned at the top of described loose blade construction, described material crushing device and described loose blade construction are positioned at described storing section, described in every group, material crushing device comprises a plurality of blades that umbrella arranges that are, described in every group, loose blade construction comprises at least 4 loose blades that annular is uniform, described in each, loose blade is for being obliquely installed, and described in each, the blade face of loose blade is towards the rotation direction setting of described main shaft, described main the tip of the axis is provided with helical blade, described helical blade is arranged in described discharging section.
Wherein, described in every group, material crushing device comprises at least 8 described blades, and the angle between described blade and described main shaft is 45 °, and the edge indentation structure of described blade.
Wherein, described in every group, the appearance and size of loose blade construction adapts with the size of corresponding described storing section; Described in every group, the appearance and size of material crushing device adapts with the size of corresponding described storing section.
Wherein, described in every group, loose blade construction comprises 4 described loose blades.
Wherein, the top of described storing section is provided with the feed zone of annular, the dismountable opening part that is arranged at described feed zone of described cover plate.
Wherein, the epimere of described feed zone is provided with upper limit site, described upper limit site is provided with upper limit sensor, the hypomere of described storing section is provided with lower limit site, described lower limit site is provided with lower limit sensor, the alarm that described bucket body is also provided with controller and is connected with described controller, described upper limit sensor is all connected with described controller with described lower limit sensor; Material position in described bucket body is during lower than described lower limit site, and described lower limit sensor sends to described controller by this signal, and described controller is controlled the described alarm alarm that feeds in raw material; Material position in described bucket body is during higher than described upper limit site, and described upper limit sensor sends to controller by this signal, and described controller is controlled described alarm and stopped reinforced alarm.
Wherein, be also provided with a plurality of cross bars of annular arrangement on described main shaft, the position of described cross bar on described main shaft and the position in described upper limit site adapt.
Wherein, the end of described cross bar approaches the inner side setting of described feed zone.
Wherein, on described main shaft, be provided with 4 cross bars of annular arrangement.
Wherein, 2/3 of the diameter of bore that the external diameter of described helical blade is described discharging section.
Beneficial effect of the present invention is:
The feeding hopper with material crushing function of the present invention, comprises bucket body, and described bucket body comprises the storing section of back taper and the discharging section of annular, and described storing section is coaxial setting with described discharging section, the top of described storing section is provided with cover plate, described cover plate is provided with charging aperture, the top of described cover plate is provided with drive motors, described drive motors connects one and stretches into the inner main shaft arranging of described bucket body, on described main shaft, be arranged at intervals with many group material crushing devices and the loose blade construction of many groups, described material crushing device is positioned at the top of described loose blade construction, described material crushing device and described loose blade construction are positioned at described storing section, described in every group, material crushing device comprises a plurality of blades that umbrella arranges that are, described in every group, loose blade construction comprises at least 4 loose blades that annular is uniform, described in each, loose blade is for being obliquely installed, and described in each, the blade face of loose blade is towards the rotation direction setting of described main shaft, described main the tip of the axis is provided with helical blade, described helical blade is arranged in described discharging section, this feeding hopper carries out break process repeatedly by the material crushing device on main shaft to the material entering in storing section, the particle of material that makes to enter into the barrel of extruder from this feeding hopper reduces greatly, and then facilitate barrel charging, also facilitate the screw rod in barrel to the propelling movement of material and melt process, be convenient to extruding of extruder, simultaneously, this feeding hopper is after carrying out material break process, loose blade construction on main shaft loosens to the material falling after above-mentioned material crushing device fragmentation repeatedly, avoid material to pile up for a long time and impact enters the discharging after discharging section, also the pressure that the material in the time of can reducing helical blade force feed material in storing section forms the material of discharging section, make this feeding hopper feeding easy, and only at discharging section, material is carried out to force feed by force, can greatly reduce the power consumption of feeding.In addition, this feeding hopper is by the force feed of the helical blade of discharging section, the deal of the material of sending is more prone to be consistent, can not cause the burden that the charging barrel charge door of extruder is formed to material moment accumulation, more can guarantee the loose quality of material of extruder, contribute to improve the quality of the extruded product of extruder.
Accompanying drawing explanation
Fig. 1 is the structural representation with the feeding hopper of material crushing function of the present invention.
Fig. 2 is the plan structure schematic diagram of the blade in Fig. 1.
Fig. 3 is the side structure schematic diagram of the blade in Fig. 1.
In figure: 1-feed zone; 2-storing section; 3-discharging section; 4-cover plate; 5-drive motors; 6-main shaft; 7-upper limit sensor; 8-lower limit sensor; 41-charging aperture; 61-cross bar; The 62-blade that loosens; 63-helical blade; 64-blade; 621-peak; 622-minimum point.
The specific embodiment
Below in conjunction with accompanying drawing and by the specific embodiment, further illustrate technical scheme of the present invention.
As shown in Figures 1 to 3, a kind of feeding hopper with material crushing function, comprises bucket body, and bucket body comprises the storing section 2 of back taper and the discharging section 3 of annular, and storing section 2 is coaxial setting with discharging section 3, the top of storing section 2 is provided with cover plate 4, cover plate 4 is provided with charging aperture 41, the top of cover plate 4 is provided with drive motors 5, drive motors 5 connects one and stretches into the inner main shaft 6 arranging of bucket body, on main shaft 6, be arranged at intervals with many group material crushing devices and the loose blade construction of many groups, material crushing device is positioned at the top of loose blade construction, material crushing device and loose blade construction are positioned at storing section 2, every group of material crushing device comprises a plurality of blades 64 that umbrella arranges that are, every group of loose blade construction comprises at least 4 loose blades 62 that annular is uniform, each loose blade 62 is for being obliquely installed, and the blade face of each loose blade 62 is towards the rotation direction setting of main shaft 6, the end of main shaft 6 is provided with helical blade 63, helical blade 63 is arranged in discharging section 3.
The feeding hopper with material crushing function of the present invention, by adopting the storing section 2 of back taper and the combining structure of columniform discharging section 3, can be so that material slides along back taper sidewall under the effect of inverted cone-shaped structure and material deadweight, enter in discharging section 3, the helical pressure effect that recycles helical blade 63 in discharging section 3 by material wherein by force to lower nip, assurance material can be sent in the barrel of extruder in time, guarantees the normal operation of extruder.This feeding hopper also carries out break process repeatedly by the material crushing device on main shaft 6 to the material entering in storing section 2, the particle of material that makes to enter into the barrel of extruder from this feeding hopper reduces greatly, and then facilitate barrel charging, also facilitate the screw rod in barrel to the propelling movement of material and melt process, be convenient to extruding of extruder.Further, this feeding hopper is after carrying out material break process, loose blade construction on main shaft 6 loosens to the material falling after above-mentioned material crushing device fragmentation repeatedly, avoid material to pile up for a long time and impact enters the discharging after discharging section, also the pressure that the material in the time of can reducing helical blade 63 force feed material in storing section 2 forms the material of discharging section 3, avoid occurring " bridge formation " phenomenon, make this feeding hopper feeding easy, and only at 3 pairs of materials of discharging section, carry out force feed by force, can greatly reduce the power consumption of feeding.In addition, this feeding hopper is by the force feed of the helical blade 63 of discharging section 3, the deal of the material of sending is more prone to be consistent, can not cause the burden that the charging barrel charge door of extruder is formed to material moment accumulation, more can guarantee the loose quality of material of extruder, contribute to improve the quality of the extruded product of extruder.
For the loose blade construction at differing heights place on main shaft 6 can be coordinated well with the inner side of storing section 2, to reach the object of good bulk material, in the present embodiment, the appearance and size of every group of loose blade construction adapts with the size of corresponding storing section 2.And every group of loose blade construction comprises 4 loose blades 62.Like this, at main shaft 6, drive in the process of loose blade construction rotation, loose blade 62 in every group of loose blade construction will intermittently loosen to its material around repeatedly, avoid solid accumulation, and then avoid temperature in storing section 2 to rise, thereby guarantee that material can store well in storing section 2 and for the discharging of discharging section 3.Concrete, after loose blade 62 is obliquely installed, and face of blade is towards the direction setting of main shaft 6 rotations, like this, loose blade 62 is when main shaft 6 rotates, minimum point 622 places on it will be positioned on the lower material bed upper, and the peak 621 on this its will be positioned at top material bed upper, like this, material in the aspect space forming at minimum point 622 and peak 621 blade 62 that all can be loosened when main shaft rotates digs, reach loose object, also can dispel the heat, avoid material bonding.Thereby, by the differing heights at main shaft 6, loose blade construction is set, can realize the loose of material in certain altitude space.
Equally, for the material crushing device at differing heights place can be coordinated well with the inner side of corresponding storing section 2, to reach the object of good broken material, in the present embodiment, the appearance and size of every group of material crushing device adapts with the size of corresponding storing section 2.And every group of material crushing device comprises at least 8 blades 64, the angle between blade 64 and main shaft 6 is 45 °, and the edge indentation structure of blade 64.Material enter bucket body and the process that falls in, the blade 64 at differing heights place carries out multiple impacts cutting to material in the process of rotation, and then makes this feeding hopper broken material better.
The feeding hopper with material crushing function of the present invention, at the top of storing section 2, be provided with the feed zone 1 of annular, the dismountable opening part that is arranged at feed zone 1 of cover plate 4, increased greatly the storing space of bucket body inside, each feeding in raw material can add more material in feeding hopper, avoid repeatedly feeding in raw material, reduce labour intensity.And, in the present embodiment, in feed zone 1, on the main shaft 6 of correspondence, be also provided with a plurality of material crushing devices, can increase the cut number of times of material, reduce the particle of material.
Further, in the present embodiment, the epimere of feed zone 1 is provided with upper limit site, upper limit site is provided with upper limit sensor 7, the hypomere of storing section 2 is provided with lower limit site, lower limit site is provided with lower limit sensor 8, the alarm that bucket body is also provided with controller and is connected with controller, and upper limit sensor 7 is all connected with controller with lower limit sensor 8; Material position in bucket body is during lower than lower limit site, and lower limit sensor 8 sends to controller by this signal, and controller is controlled the alarm alarm that feeds in raw material; Material position in bucket body is during higher than upper limit site, and upper limit sensor 7 sends to controller by this signal, and controller is controlled alarm and stopped reinforced alarm.Be no matter Artificial Control to reinforced in feeding hopper, or by auto feed, feeding hopper of the present invention can play regularly punctual prompting, to avoid lacking in feeding hopper, expects and causes the idle running of extruder.
Wherein, alarm is buzzer siren or polychrome signal lamp.
When material is when the charging aperture 41 of cover plate 4 enters bucket body, owing to generally can being greater than feeding hopper to the rate of feeding of extruder to the speed of feeding hopper charging, thereby material can be from discharging section 3 until feed zone 1 starts to pile up increases, but, for avoiding material excessively to pile to press, overflow bucket body under charging aperture 41, also avoiding material too much can make to pile pressure exceeds helical blade 63 and can rotate born pressure, on main shaft 6, be also provided with a plurality of cross bars 61 of annular arrangement, and, the position of cross bar 61 on main shaft 6 and the position in upper limit site adapt, at material, enter in the process of bucket body, the rotation that utilizes cross bar 61 to follow main shaft 6 promotes the material of charging aperture 41 belows, so that material is dispersed in whole feed zone 1, and then also can make upper limit sensor 7 can detect more exactly material whether to reach this upper limit site, to send accurately signal to controller, and then make controller control alarm send alarm signal accurately.
Wherein, the end of cross bar 61 approaches the inner side setting of feed zone 1.
Wherein, on main shaft 6, be provided with 4 cross bars 61 of annular arrangement.
Wherein, the external diameter of helical blade 63 be discharging section 3 diameter of bore 2/3.
Know-why of the present invention has below been described in conjunction with specific embodiments.These are described is in order to explain principle of the present invention, and can not be interpreted as by any way limiting the scope of the invention.Explanation based on herein, those skilled in the art does not need to pay performing creative labour can associate other specific embodiment of the present invention, within these modes all will fall into protection scope of the present invention.