CN207901633U - A kind of extruder die head - Google Patents

Abstract

The utility model discloses a kind of extruder die heads, it is related to extruder field, its key points of the technical solution are that including die head, the die head is equipped with several material transport hole groups, the material transport hole group includes several material transport holes through die head, the material transport hole includes feed opening, discharge hole and the conveying channel between feed opening and discharge hole, the straight of the discharge hole hole wall increases radially away from feed opening direction, advantage is to reduce the contact of material and discharge outlet die head outer wall, when material contacts solidification with air, reduces partially cured material and blocked caused by discharge port.

Description

A kind of extruder die head

Technical field

The utility model is related to extruder field, more particularly to a kind of extruder die head.

Background technology

Plastic extruder be it is a kind of by technics of reclaim of plastic waste by high-temperature heating at molten condition, will be extruded into after contaminant filter The equipment that new product is made in die for molding, and die head of plastic extruding machine is just mounted at head of plastic extruder and makes to be wanted The material of extrusion is passed through from the aperture on die head of plastic extruding machine, then is cut with cutter to obtain short grained plastics, then A kind of device reprocessed.

Notification number is that the Chinese patent of CN102862283A discloses a kind of head of plastic extruder, it includes：Head pressure Lid, end plate, machine barrel and filtering core pipe, the end plate connection are equipped with several described in the exit of the machine barrel, the machine barrel Core pipe is filtered, the filtering core pipe is fixedly installed on the end plate, and the head gland is threadedly connected to the end of the machine barrel The outer surface in portion, the filtering core pipe is covered at least two layers of filter screen, and the filtering accuracy positioned at the filter screen of internal layer is higher than Positioned at the filtering accuracy of the filter screen of outer layer.This plastic extruder has a good filter effect, but material pass through it is this When extruder squeezes out, since temperature is very high in the machine barrel of extruder, material temperature after by machine barrel is also higher, when material slave It contacts and can cool and solidify with air after being squeezed out in cylinder, since material solidification at this time can be attached on the inner wall in machine barrel exit, meeting The blocking for causing outlet, influences the output of material.

Utility model content

The purpose of this utility model is to provide a kind of extruder die head, its advantage is that：Reduce material and mould at discharge hole The contact of head inner wall reduces partially cured material and is blocked caused by discharge port when material contacts cooling and solidifying with air.

The above-mentioned technical purpose of the utility model technical scheme is that：A kind of extruder mould Head, including die head, the die head are equipped with several material transport hole groups, and the material transport hole group includes several material transport holes through die head, The material transport hole includes feed opening, discharge hole and the conveying channel between feed opening and discharge hole, the discharge hole hole wall Straight gradually increase radially away from feed opening direction.

Through the above technical solutions, feed opening of the material out of material transport hole enters, then exported from discharge hole, discharge hole hole wall It is straight increase to form flaring radially away from feed opening direction, when material is exported from discharge hole, reduce material and die head and discharge Hole inner wall contact reduces material in partially solidified with the contact of die head inner wall after contacting with the air, the material after reduction solidification It is blocked at discharge hole, ensures the output of material.

The utility model is further arranged to：The die head is equipped with close to feed opening one end in material transport hole and is connected to feed opening Material guiding tube, the straight of the feed opening hole wall gradually increase radially away from discharge hole direction.

Through the above technical solutions, material is by being transported to feed opening in material guiding tube, then by feed opening and discharge hole quilt Output, the straight input gradually increased radially away from discharge hole direction convenient for material of feed opening hole wall, ensures that material exports process It is smooth.

The utility model is further arranged to：The diameter in the conveying channel is equal to discharge hole minimum diameter, the charging Hole and discharge hole pass through arc transition with conveying channel junction is crossed.

Through the above technical solutions, the diameter in setting conveying channel is equal to discharge hole minimum diameter, be conducive to conveying channel Extruding force is applied to material, by pressing materials by material transport hole, the bubble in material is reduced, keeps extruded material relatively uniform, Quality of material is improved, arc transition ensure that the material in material transport hole is extruded, economize on resources, and reduce solid accumulation dead Angle influences the output of material.

The utility model is further arranged to：The conveying channel is equipped with spiral thread close to feed opening side inner wall.

Through the above technical solutions, material, when passing through spiral thread, spiral thread is pierced into material and is contacted with material, object Spiral thread plays the role of agitation to material in material in the process of moving, is conducive to the air being discharged in material, reduces object Bubble in material makes material pass through material transport hole various pieces evenly, improves the quality that material squeezes out.

The utility model is further arranged to：The material guiding tube is equipped with filter screen, the filter screen close to feed pipe one end Center is directed away from feed opening curving.

Through the above technical solutions, due to material in material guiding tube and material transport hole by when be in high temperature fused state, mistake Strainer is conducive to the bulky grain in filter material, improves the quality that material squeezes out, filter screen center is directed away from feed opening side Bending, when large granular materials are blocked in by filter screen at filter screen, the large granular materials being blocked are sliding to material guiding tube Wall reduces the blocking of filter screen, and reducing influences passing through for material.

The utility model is further arranged to：The die head is equipped with the convex block passed through for material transport hole in one end of material guiding tube, The convex block stretches out the one side of die head away from one end of material guiding tube, and the material transport hole is pierced by convex block both sides.

Through the above technical solutions, convex block be convenient for cutting of the cutter to material, cutter when cutting material with it is convex Being in direct contact for the contact of block side, reduction cutter and die head, facilitates material to be cut, while convex block also makes material transport hole group become whole Body.

The utility model is further arranged to：It offers embedded for convex block on the die head and is connect with convex block outer wall thread Thread groove, the thread groove slot bottom is connected with material guiding tube.

Through the above technical solutions, convex block is threadedly coupled with die head, it is convenient when material transport hole is blocked or situation occurs It replaces, and is threadedly coupled and relatively consolidates, advantageously ensure that the safety of the course of work.

The utility model is further arranged to：It is offered and material transport hole group close to the position of material transport hole group on the die head Bolts hole corresponding and through die head both sides.

Through the above technical solutions, correspondence offers bolt hole at each material transport hole group, bolt is stretched by bolt Hole is threadedly coupled with extruder and die head is fixed on extruder, and this connection type is relatively more firm, reduces and works in extruder Die head is unstable and influence material extrusion in the process, advantageously ensures that the safety of the course of work.

In conclusion the utility model has the advantages that：Material from feed opening enter, by conveying channel again from Discharge hole exports, and straight due to discharge hole hole wall increases to form flaring radially away from feed opening direction, when material is defeated from discharge hole When going out, reduce material and contacted with die head discharge hole inner wall, and then reduces material in partially solidified after contacting with the air and die head The contact of inner wall reduces the feed blocking after solidification in discharge hole, ensures the output of material.

Description of the drawings

Fig. 1 is the structural schematic diagram of the present embodiment；

Fig. 2 is the partial enlargement structural representation in the portions A in Fig. 1；

Fig. 3 is the structural schematic diagram after die head installation in the present embodiment.

Reference numeral：1, die head；11, thread groove；21, material transport hole；211, feed opening；212, discharge hole；216, conveying is logical Road；22, material guiding tube；23, spiral thread；24, filter screen；25, convex block；3, bolt hole.

Specific implementation mode

The utility model is described in further detail below in conjunction with attached drawing.

Embodiment：A kind of extruder die head, as shown in Figure 1, including die head 1, die head 1 is connect when using with extruder, Die head 1 is equipped with several material transport hole groups, and each material transport hole group includes two material transport holes 21（With reference to figure 2）, the packet of material transport hole 21 Include the feed opening 211 for being separately positioned on material transport hole 21, discharge hole 212 and the conveying between feed opening 211 and discharge hole 212 Channel 216, when material comes out from discharge hole 212, since material is in high temperature fused state, material is squeezed out in discharge hole 212 Being contacted afterwards with air can cool and solidify, therefore the straight of 212 hole wall of discharge hole is arranged and gradually increases radially away from 211 direction of feed opening Greatly, material is reduced to be in direct contact with discharge hole 212 inner wall at discharge hole 212, it is viscous after material cooling and solidifying to reduce Knot 1 discharge hole of die head, 212 inner wall and caused by discharge hole 212 block.

As shown in Fig. 2, material transport hole 21 is equipped with the material guiding tube 22 being connected to feed opening 211, material close to 211 one end of feed opening Feed opening 211 is delivered to out of material guiding tube 22, for the ease of the entrance of material, 211 hole wall of feed opening it is straight radially away from discharging 212 direction of hole gradually increases, the diameter at 216 both ends of conveying channel between feed opening 211 and discharge hole 212 respectively equal into The minimum diameter for expecting hole 211 and discharge hole 212, after material enters conveying channel 216 from feed opening 211, material can be extruded, So as to reduce the bubble between material, the quality that material squeezes out is improved.

As shown in Fig. 2, feed opening 211 and discharge hole 212 and 216 junction of conveying channel pass through by arc transition Arc transition reduces the dog-ear between feed opening 211 and discharge hole 212 and conveying channel 216, reduces and generates solid accumulation Dead angle economizes on resources to ensure that all materials are exported, in order to further increase the uniformity of material, conveying channel 216 are equipped with spiral thread 23 close to 211 side inner wall of feed opening, and material is moved along 23 spiral of spiral thread, spiral thread 23 Play the role of agitation in material, so as to which the air in material is discharged, improves the uniformity of material, improve outputting material Quality.

As shown in Fig. 2, in order to be further reduced the impurity in material, material guiding tube 22 is additionally provided with close to 211 one end of feed opening Filter screen 24,24 center of filter screen are directed away from 211 curving camber of feed inlet, and 24 arc curved of filter screen is conducive to Impurity slides in arcuately face to 22 inner wall of material guiding tube after being stopped by filter screen 24, reduces impurity and is deposited in shadow on filter screen 24 It rings filter screen 24 and uses the extrusion with material.

As shown in Fig. 2, die head 1 is equipped with the convex block 25 passed through for material transport hole 21 in one end of material guiding tube 22, convex block 25 deviates from The one side of die head 1 is stretched out in one end of material guiding tube 22, and material transport hole 21 is pierced by 25 both sides of convex block, and convex block 25 makes material transport hole group become one A entirety, the replacement after being blocked convenient for material transport hole 21, since convex block 25 protrudes 1 part of die head, when cutter is carried out to material Cutter is contacted with 25 side of convex block when cutting, is reduced being in direct contact for cutter and die head 1, is protected die head 1, facilitate cutter Cutting, improve cutter working efficiency, be further opened on die head 1 and be embedded in for convex block 25 and connect with 25 outer wall thread of convex block Thread groove 11,11 slot bottom of thread groove are connected with material guiding tube 22, so that material transport hole group is realized detachable, reduce because material transport hole 21 damages The replacement of entire extruder upper die head 1, economizes on resources caused by and.

As shown in figure 3, in addition, being further opened with several bolts hole 3 in ordinary circumstance lower die head 1, the correspondence of bolt hole 3 is opened in Close to material transport hole group position on die head 1, bolt hole 3 runs through 1 both sides of die head, and bolt hole 3 is used to die head 1 being fixed on extruder It uses, this connection type is relatively firm, it is possible to reduce die head 1 is moved during extruder use and made to the use of extruder At influence, ensure that extruder can work normally.

This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but As long as all being protected by Patent Law in the right of the utility model.

Claims (8)

1. a kind of extruder die head, including die head（1）, it is characterised in that：The die head（1）Several material transport hole groups are equipped with, The material transport hole group includes several through die head（1）Material transport hole（21）, the material transport hole（21）Including feed opening（211）, go out Expect hole（212）And in feed opening（211）And discharge hole（212）Between conveying channel（216）, the discharge hole（212）Hole Wall it is straight radially away from feed opening（211）Direction gradually increases.

2. a kind of extruder die head according to claim 1, it is characterised in that：The die head（1）In material transport hole（21） Close to feed opening（211）One end is equipped with and feed opening（211）The material guiding tube of connection（22）, the feed opening（211）Hole wall it is straight Radially away from discharge hole（212）Direction gradually increases.

3. a kind of extruder die head according to claim 2, it is characterised in that：The conveying channel（216）Diameter Equal to discharge hole（212）Minimum diameter, the feed opening（211）And discharge hole（212）With conveying channel excessively（216）Junction is equal Pass through arc transition.

4. a kind of extruder die head according to claim 3, it is characterised in that：The conveying channel（216）Close into Expect hole（211）Side inner wall is equipped with spiral thread（23）.

5. a kind of extruder die head according to claim 2, it is characterised in that：The material guiding tube（22）Close to feed opening （211）One end is equipped with filter screen（24）, the filter screen（24）Center is directed away from feed opening（211）Curving.

6. a kind of extruder die head according to claim 1, it is characterised in that：The die head（1）In material guiding tube（22） One end be equipped with for material transport hole（21）The convex block passed through（25）, the convex block（25）Away from material guiding tube（22）One end stretch out die head （1）One side, the material transport hole（21）It is pierced by convex block（25）Both sides.

7. a kind of extruder die head according to claim 6, it is characterised in that：The die head（1）On offer for convex Block（25）Embedded and and convex block（25）The thread groove of outer wall thread connection（11）, the thread groove（11）Slot bottom and material guiding tube（22） It is connected.

8. a kind of extruder die head according to claim 1, it is characterised in that：The die head（1）On close to conveying The position of hole group offers corresponding with material transport hole group and runs through die head（1）The bolt hole of both sides（3）.