CN205853325U - A kind of plastic extruder - Google Patents

Abstract

The utility model discloses and a kind of the compounds such as plastics can be avoided to stick when putting in feed hopper at feed hopper and the plastic extruder expecting that pipe communicates on the inwall at place；Including material pipe, extrusion screw rod and driving motor, extrusion screw rod is connected with driving motor in being arranged on material pipe, it is provided with extruder head away from the one end driving motor in material pipe and makes the mould of plastic shaping, material pipe is upper to be provided with and the feed hopper expecting that pipe communicates near the one end driving motor, feed hopper is connected by the outer surface of attachment means with material pipe, and feed hopper is arc with the sidewall of material pipe connecting place；The clogging that this kind of plastic extruder can effectively avoid material pipe to communicate place with feed hopper, it is also possible to realize the effect carrying out water-cooled heat absorption in material pipe.

Description

A kind of plastic extruder

Technical field

This utility model relates to plastic extruding forming apparatus field, particularly to a kind of plastic extruder.

Background technology

In the contour machining equipment of plastics, extruder is indispensable important component part, squeezing of plastic extruder Go out method and generally referred to as under the high temperature of about 200 degree, make plastic melting, formed required when the plastics of melting are again by mould The shape wanted.

As disclosed in patent application on the net a kind of rubber feed worm extrusion mechanism (application number: 201420372372.2), including extrusion housing, extrusion screw rod and feed hopper, the inner transverse of extrusion housing is disposed with extrusion spiral shell Bar, its upper end is provided with feed hopper near the position of right-hand member, and its left side has plastic hole between two parties, and one end of extrusion screw rod is right The taper extruder head of quasi-plastic hole, the inner face of the extrusion housing corresponding with extruder head is circular cone spigot surface；By rubber with mixed Close material to put in feed hopper simultaneously, enter in extrusion housing after feed hopper, through the plastifying fusion etc. of extrusion screw rod Operation, extrudes from plastic hole after eventually passing the guiding of circular cone spigot surface；Feed worm extrusion mechanism due to this kind of rubber Directly housing is vertical communicates with extrusion for feed hopper, during by the compound input feed hoppers such as plastic, rubber, now moulds The compounds such as the sticking material of band that the material compound such as rubber is softer, plastics now or rubber arise that at feed hopper In have large-area a contact with the inwall at the extrusion housing place of communicating, thus have plastics of part or rubber be bonded at feed hopper and Extrusion housing communicates on the inwall at place, it is impossible to realize the entrance of all materials, causes the waste of material, simultaneously also to feed hopper Or the cleaning of the inwall of extrusion housing brings inconvenience.

Utility model content

The purpose of this utility model is to provide a kind of plastic extruder, and the compounds such as plastics can be avoided to put into feed hopper Time middle, can stick and communicate on the inwall at place with material pipe at feed hopper.

Above-mentioned technical purpose of the present utility model has the technical scheme that a kind of plastic extruder, Including material pipe, extrusion screw rod and driving motor, described extrusion screw rod is connected, in described material pipe with driving motor in being arranged on material pipe It is provided with extruder head away from the one end driving motor and makes the mould of plastic shaping, near the one end driving motor on described material pipe The feed hopper being provided with and expect that pipe communicates, described feed hopper by attachment means with material pipe outer surface be connected, described feed hopper and The sidewall of material pipe connecting place is arc.

By using technique scheme, the compound such as plastics, can be vertical through charging when being put in feed hopper Struggle against in laggard feeding pipe, when feed hopper with material pipe communicate part curved after, i.e. in inner concavity, now by with vertical drop There is certain gap between the compounds such as plastics, in this gap under effect, i.e. can be prevented effectively from the materials such as plastics and enter Stick during material pipe and communicate on the inwall at place with material pipe at feed hopper, thus avoid the waste of material, also will not make The cleaning of material pipe or feed hopper has more obstruction.

This utility model is arranged further: described attachment means includes compact heap and compression plate, described compact heap Circle-Array Row rotate the one end being arranged on material tube-surface near driving motor, and described compression plate is arranged on feed hopper external peripheral surface and leans on Nearly material pipe one end, described compression plate is provided with the connection groove run through for compact heap grafting, and the length of described compact heap is more than even Connect the width of groove.

By using technique scheme, after connection groove grafting being entered in compact heap, rotate compact heap so that compress The two ends in block length direction compress compression plate, now utilize foolproof device to achieve feed hopper at material pipe upper surface Fixing, i.e. achieve feed hopper and expect being connected of pipe, again rotating compact heap so that compact heap separates with compression plate, this Time can realize very easily feed hopper with material pipe fractionation.

This utility model is arranged further: the inwall of described material pipe is provided with chiller.

By using technique scheme, chiller is to ensure that plastics are in the temperature range of technological requirement and set Put, specifically in order to get rid of screw rod rotate shearing friction produce waste heat, with avoid temperature too high make plastics, Incipient scorch or sizing difficulty.

This utility model is arranged further: described chiller includes the aqua storage tank being arranged in material tube side wall, Yi Jiyu The water receiving hole that aqua storage tank communicates, described water receiving hole is connected with water service pipe respectively.

By using technique scheme, after accessing water source by water service pipe, water source enters in aqua storage tank by water receiving hole, Make to expect that tube wall is at a temperature of relatively low, thereby may be ensured that the temperature in material pipe will not be too high, reached extrusion screw rod Purpose in the extrusion work cooling carrying out plastics.

This utility model is arranged further: described compression plate is provided with for eliminating gap between compact heap and compression plate Fixture, described fixture is fixed on the both sides connecting groove length direction.

By using technique scheme, owing to compact heap is rotatably connected on material pipe, so compact heap and material pipe Larger gap is there is between surface, when feed hopper is attached with material pipe, when compact heap carries out compressing connection to compression plate, Under the effect of fixture, the gap between compact heap and material pipe can be eliminated further, the most also make compact heap and compression plate Between compression connect tightr, it is ensured that feed hopper material pipe on firm and reliable connection.

This utility model is arranged further: described fixture is provided with convex surface, and described compact heap is conflicted with convex surface.

By using technique scheme, rotate compact heap so that compact heap gradually rotates to convex surface, now convex surface Exist and i.e. can well eliminate the gap between compact heap and compression plate, so that the connection that feed hopper is on material pipe is tight Close firmly.

This utility model is arranged further: being provided with rubber spacer between described compression plate and material pipe, described compact heap runs through Rubber spacer.

By use technique scheme, the existence of rubber spacer can eliminate further feed hopper with expect pipe be connected time, Gap between compression plate and material tube-surface, thus ensure that two are completely embedded between this firmly.

This utility model is arranged further: the described aqua storage tank degree of depth near extruder head one end is close more than aqua storage tank drives The degree of depth of galvanic electricity machine one end.

By using technique scheme, in one end aqua storage tank that the degree of depth is bigger, just can deposit more water source, also Decrease the wall thickness between extruder head and aqua storage tank, strengthen extruder head in the work process finally carrying out plastic extrusion Cooling.

In sum, this utility model has the advantages that

1, can be prevented effectively from blanking stick feed hopper with on the inwall communicating place of material pipe, it is to avoid the wave of plastics Take；

2, simple structure is used to achieve feed hopper fast assembling-disassembling on material pipe；

3, have employed the chiller to extrusion screw rod, it is ensured that the smooth extrusion molding of plastics；

4, multiple simple structure is used to ensure that being completely embedded firmly between feed hopper and material pipe；

5, aqua storage tank have employed the different degree of depth, can strengthen the cooling that plastic extruding forming is worked by extrusion screw rod.

Accompanying drawing explanation

Fig. 1 is the overall structure schematic diagram of this plastic extruder；

Fig. 2 is the structural representation of embodiment 1；

Fig. 3 is feed hopper and the structural representation of attachment means in embodiment 1；

Fig. 4 is the partial enlarged drawing of A in Fig. 3；

Fig. 5 is the structural representation of embodiment 2；

Fig. 6 is the partial enlarged drawing of B in Fig. 5；

Fig. 7 is the structural representation of embodiment 3；

Fig. 8 is the partial enlarged drawing of C in Fig. 7.

In figure: 1, material pipe；11, arc；2, extrusion screw rod；3, motor is driven；4, extruder head；5, mould；6, feed hopper； 7, attachment means；71, compact heap；72, groove is connected；73, compression plate；731, fixture；7311, convex surface；8, chiller； 81, aqua storage tank；82, water receiving hole；83, water service pipe；9, rubber spacer.

Detailed description of the invention

Below in conjunction with accompanying drawing, this utility model is described in further detail.

Embodiment 1: a kind of plastic extruder, as illustrated in fig. 1 and 2, mainly by material pipe 1, drive motor 3, extrusion screw rod 2, Extruder head 4 and mould 5 form, and extrusion screw rod 2 is by driving motor 3 to control rotation in material pipe 1, and extruder head 4 and mould 5 are equal It is arranged on the interior one end away from driving motor 3 of material pipe 1, material pipe 1 is provided with near the one end driving motor 3 one and expects pipe 1 The feed hopper 6 communicated, as it is shown on figure 3, feed hopper 6 is connected fixing by attachment means 7 with material pipe 1.

When needing the extrusion molding work carrying out plastics, being put into by plastics in feed hopper 6, plastics are fallen by feed hopper 6 On extrusion screw rod 2 in feeding pipe 1, and by driving the work of motor 3, extrusion screw rod 2 rotates in material pipe 1, now, is in Plastics on extrusion screw rod 2 rotate, along with extrusion screw rod 2, the conveying realized in material pipe 1, and are gradually delivered to extruder head 4 Place, imports in mould 5 after the plastics of rotary motion are changed into parallel lines motion, carries out the shaping work of plastics.

In the process, the connection between feed hopper 6 and material pipe 1 is set to the arc 11 concaved, as in figure 2 it is shown, So, when plastics vertically fall at feed hopper 6, so that there is sky between the plastics of vertical drop and arc 11 Gap, i.e. can effectively avoid plastics and with contacting at arc 11, thus can also avoid plastics being stained with at arc 11 Viscous phenomenon, utilize extremely simple structure change to avoid the phenomenon that plastics can stick with material pipe 1 contact internal walls, it is to avoid enters The clogging that hopper likely occurs with the material pipe place of communicating, being effectively guaranteed plastics can obtain completely in material pipe 1 The work of extrusion molding.

In the present embodiment, above-mentioned attachment means 7 includes compact heap 71 and compression plate 73, compact heap 71 circumference array Being distributed and rotate the close one end driving motor 3, surface being arranged on material pipe 1, as shown in Figures 3 and 4, compression plate 73 is then arranged on Near one end of material pipe 1 on feed hopper 6 external peripheral surface, on compression plate 73, now offer multiple confession compact heap 71 grafting pass through The connection groove 72 worn, and the length of compact heap 71 is more than the width connecting groove 72.

When realizing feed hopper 6 and being connected fixing with material pipe 1 so that compact heap 71 grafting runs through connection groove 72, is now Can realize feed hopper 6 material pipe 1 on position limit, be rotated further by compact heap 71 afterwards so that compact heap 71 along length side To two ends respectively with compression plate 73 conflict compress, now achieve feed hopper 6 material pipe 1 on being completely fixed, i.e. achieve Connection between feed hopper 6 and material pipe 1 is fixed, very simple and convenient；When needing to carry out tearing open between feed hopper 6 and material pipe 1 Timesharing, the most only need to rotate compact heap 71 again so that compact heap 71 two ends along its length and the surface of compression plate 73 Separate and be in connection groove 72, the most i.e. make not reconnect between feed hopper 6 and material pipe 1 fixing, the most i.e. can be by Feed hopper 6 takes off from material pipe 1, realizes feed hopper 6 separating from material pipe 1 easily.

In the present embodiment, above-mentioned attachment means 7 can also use the structure of connecting bolt, i.e. circumference on material pipe 1 After array arranges multiple screwed hole, feed hopper 6 is placed on material pipe 1, now makes connection groove 72 and the spiral shell of compression plate 73 Pitpair is full cried and is put, then is threaded in hole by connecting bolt, it is achieved feed hopper 6 and the connection expecting pipe 1 are fixed.

Embodiment 2: a kind of plastic extruder, is with the difference of embodiment 1, as it is shown in figure 5, due to extrusion screw rod 2 is to rotate to realize the transmission to plastics and the work of extrusion molding under driving electronic drive in material pipe 1, is driving Motor 3 do not stop work in work, it may appear that drive motor 3 to generate heat, and transfer heat to, on extrusion screw rod 2, now have bigger heat The evacuation that can not obtain heat in the extrusion screw rod 2 material pipe 1 of amount will make the plastics on extrusion screw rod 2, incipient scorch fire Or sizing difficulty, so now, essential to the cooling work within material pipe 1.

Now, the inwall at material pipe 1 is provided with chiller 8, as it can be seen in figures 5 and 6, i.e. the inwall at material pipe 1 offers Aqua storage tank 81, is additionally provided with the water receiving hole 82 communicated therewith in aqua storage tank 81, water receiving hole 82 away from one end of aqua storage tank 81 all with logical Water pipe 83 is connected；So, while carrying out the work of the extrusion molding to plastics so that water service pipe 83 communicates with water source, And make entrance aqua storage tank 81 in water source is stored by water service pipe 83, the most i.e. reach the effect to material pipe 1 water liquid cooling Really so that material pipe 1 can be absorbed heat by the water source in material pipe 1, it is also possible to absorbs heat extrusion screw rod 2, such that it is able to make Obtaining the temperature on extrusion screw rod 2 will not be too high, and the extrusion molding work on plastics produces impact.

In the present embodiment, above-mentioned chiller 8 can also use by water service pipe 83 and water receiving hole 82 aqua storage tank Carry out in 81 continually entering cold wind, to reach the effect to material pipe 1 internal cooling.

In the present embodiment, when plastics are delivered to, by extrusion screw rod 2, the work that extruder head 4 carries out extrusion molding, The heat that now extruder head 4 produces can be bigger, now the aqua storage tank 81 degree of depth near one end of extruder head 4 is arranged and is more than Aqua storage tank 81 is near the degree of depth of driving motor 3 one end, as it is shown in figure 5, such setting i.e. decreases in aqua storage tank 81 and extrusion Wall thickness between head 4, also makes aqua storage tank 81 herein can store further amounts of water source, thus enhances extruder head Endothermic effect at 4 so that extruder head 4 can preferably realize the extrusion work to plastics.

Embodiment 3: a kind of plastic extruder, is with the difference of embodiment 2, as shown in FIG. 7 and 8, owing to compressing Block 71 is rotatably connected on material pipe 1, so there is bigger gap between compact heap 71 and material pipe 1, now will cause There is also gap between compact heap 71 and compression plate 73, the compact heap 71 that there is gap will be unable to well realize compression plate 73 Compression work, thus cause the feed hopper 6 connection on material pipe 1 firm not, in order to avoid this phenomenon, now compressing It is provided with the structure of fixture 731 on dish 73 near connection groove 72 both sides along its length, and fixture 731 is provided with convex Face 7311, now, rotate compression plate 73 so that compact heap 71 two ends along its length along fixture 731 gradually rotate to At convex surface 7311, the existence of convex surface 7311 i.e. can eliminate the gap between compact heap 71 and compression plate 73 so that compact heap Conflict between 71 and compression plate 73 more secure rigid, also make between feed hopper 6 and material pipe 1 connect enough firm Reliably.

In the present embodiment, above-mentioned fixture 731 can also use the structure of elastic sealing gasket, it is also possible to reduces and compresses Gap between block 71 and compression plate 73 so that the compact heap 71 compression close and firm on compression plate 73, also increases simultaneously The compact heap 71 frictional force after conflicting with elastic sealing gasket so that compact heap 71 will not be sliding from elastic sealing gasket easily Fall.

In the present embodiment, between compression plate 73 and material pipe 1, it is additionally provided with rubber spacer 9, as shown in Figure 8, at rubber blanket Under the effect of layer 9, can be after feed hopper 6 be placed on material pipe 1, contacting between compression plate 73 with material pipe 1 is the tightst Very close to each other, it is also possible to after avoiding feed hopper 6 to be placed on material pipe 1, and directly contacting of material pipe 1 surface, enhance both it Between pliability so that while ensure that and arbitrarily will not produce slip between feed hopper 6 and material pipe 1, phase also will not occur To abrasion.

Meanwhile, owing to rubber spacer 9 has higher density and toughness, when material pipe 1 surface has the plastics accumulated not have Being found thus clear up timely, when being just placed on by feed hopper 6 on material pipe 1 surface, rubber spacer 9 can be by these Plastics contain, and do not have the phenomenon that rubber spacer 9 slides on material pipe 1, i.e. ensure that between feed hopper 6 and material pipe 1 Be completely embedded firmly.

Detailed description of the invention, is placed on feed hopper 6 on material pipe 1, after compact heap 71 grafting runs through connection groove 72, turns Dynamic compact heap 71 so that compact heap 71 two ends along its length gradually rotate to convex surface 7311 along fixture 731, now disappear Except the gap between compact heap 71 and compression plate 73, also achieve the feed hopper 6 connection on material pipe 1 and fix.

Plastics are put in feed hopper 6 so that plastics fall on the extrusion screw rod 2 in feeding pipe 1, now by feed hopper 6 Arranging of arc 11 can prevent sticking of plastics, starts and drives motor 3, and extrusion screw rod 2 rotates, and makes moulding on extrusion screw rod 2 Material obtains carrying at extruder head 4 and mould 5, and meanwhile so that water service pipe 83 connects water source, water source can pass through water receiving Hole 82 enters in aqua storage tank 81 so that can obtain cooling-down effect in material pipe 1, also makes the heat on extrusion screw rod 2 can be by Absorb；Plastics on extrusion screw rod 2 are gradually transferred at extruder head 4, by rotary motion under the rotation of extrusion spiral shell 2 bar Plastics import in mould 5 after being changed into parallel lines motion, carry out the shaping work of plastics.

When needing to carry out the fractionation between feed hopper 6 and hopper, the most only need to again rotate compact heap 71 so that pressure The tight two ends of block 71 separate with the surface of compression plate 73 and are in connection groove 72, the most i.e. make feed hopper 6 and material pipe 1 it Between do not reconnect fixing, can realize easily feed hopper 6 from material pipe 1 separating.

This specific embodiment is only that it is not to restriction of the present utility model, ability to explanation of the present utility model The present embodiment can be made after reading this specification by field technique personnel as required does not has the amendment of creative contribution, but As long as all being protected by Patent Law in right of the present utility model.

Claims (8)

1. a plastic extruder, including material pipe (1), extrusion screw rod (2) and driving motor (3), described extrusion screw rod (2) is arranged It is connected with driving motor (3) in material pipe (1), in described material pipe (1), is provided with extruder head away from the one end driving motor (3) (4) and make the mould (5) of plastic shaping, described material pipe (1) is upper to be provided with near the one end driving motor (3) and expects that pipe (1) communicates Feed hopper (6), it is characterised in that: described feed hopper (6) by attachment means (7) with material manage (1) outer surface be connected, described Feed hopper (6) is arc (11) with the sidewall of material pipe (1) connecting place.

A kind of plastic extruder the most according to claim 1, it is characterised in that: described attachment means (7) includes compact heap (71) and compression plate (73), described compact heap (71) circumference array rotates and is arranged on material pipe (1) surface near driving motor (3) One end, described compression plate (73) be arranged on feed hopper (6) external peripheral surface near material pipe (1) one end, described compression plate (73) being provided with the connection groove (72) run through for compact heap (71) grafting, the length of described compact heap (71) is more than connecting groove (72) width.

A kind of plastic extruder the most according to claim 1, it is characterised in that: the inwall of described material pipe (1) is provided with cooling Device (8).

A kind of plastic extruder the most according to claim 3, it is characterised in that: described chiller (8) includes being arranged on Aqua storage tank (81) in material pipe (1) sidewall, and the water receiving hole (82) communicated with aqua storage tank (81), described water receiving hole (82) is respectively It is connected with water service pipe (83).

A kind of plastic extruder the most according to claim 2, it is characterised in that: described compression plate (73) is provided with for disappearing Except the fixture (731) in gap between compact heap (71) and compression plate (73), described fixture (731) is fixed on connection groove (72) both sides of length direction.

A kind of plastic extruder the most according to claim 5, it is characterised in that: described fixture (731) is provided with convex surface (7311), described compact heap (71) is conflicted with convex surface (7311).

A kind of plastic extruder the most according to claim 6, it is characterised in that: described compression plate (73) and material pipe (1) it Between be provided with rubber spacer (9), described compact heap (71) runs through rubber spacer (9).

A kind of plastic extruder the most according to claim 4, it is characterised in that: described aqua storage tank (81) is near extruder head (4) degree of depth of one end is more than the close degree of depth driving motor (3) one end of aqua storage tank (81).