CN203093008U - Extruder with stirring mixing function - Google Patents

Abstract

The utility model relates to an extruder with a stirring mixing function. A feed hopper is fixedly arranged on a meltable plastic cavity, and a feeding device and a stirring device are arranged above the feed hopper. The feeding device comprises a bearing. A guide hole and a feeding hole communicated with the guide hole are formed in the bearing. A feeding threaded rod is pivoted in the feeding hole. The stirring device comprises a box body combined with the bearing. A stirring part is pivotally arranged in the box body. A discharge port aligned with the guide hole of the bearing is formed in the box body. A valve capable of moving between an opening position and a closing position is arranged in the discharge port. By virtue of the stirring operation of the stirring device, particulate raw materials made of different materials can be uniformly fed into the cavity after being uniformly stirred to manufacture a polymer raw material with stable physical properties.

Description

Tool mixes the extruder of function

Technical field

The utility model relates to the extruder that a kind of tool mixes function, refers to a kind of evenly hybrid particles shape plastics especially and further produces the extruder of physical property stabilization of polymer.

Background technology

But the cavity that the tradition extruder has hot melting plastic, be several heaters to be set at housing surface, and at inside cavity formation chamber, screw rod is pivoted in the chamber, and at the cavity front end module is set and connects chamber, and the feed hopper that the connection chamber is set in the cavity rear end, by this can be with the feed particulate material of two or more materials, insert chamber by feed hopper, and utilize the heater heating cavity, cooperate screw rod to start rotation and propelling feed particulate material, after being mixed, the feed particulate material of unlike material can form the molten polymer of flow-like with the heater heating, and extruding mixes when rotating via screw rod feed particulate material and molten polymer move towards module, and extrude the bar shaped polymer via module, with cutting means the bar shaped polymer is cut into granulated polymer (PLA particle for example again, plastic grain), and can provide the emission forming machine of follow-up making, melt and injection molding is various forms of article for granulated polymer heat.

The feed particulate material of above-mentioned unlike material is inserted in the feed hopper and is fallen into chamber, mix though can produce by the progradation of screw rod rotation, yet evenly mix as if before feed particulate material is in entering chamber, even see through the mixing of screw rod rotation, still can cause molten polymer to mix fully equably, the physical instability that causes produced granulated polymer, and article quality and yield that the granulated polymer manufacturing that physical property is unstable is thus come out promptly are difficult to meet demand.

Summary of the invention

Be head it off, the utility model provides a kind of tool to mix the extruder of function, it comprises cavity, set firmly the feed hopper that is communicated with the chamber of cavity on the cavity, it is characterized in that: the top of feed hopper is provided with pay-off and agitating device, pay-off comprises bearing, bearing comprises guide hole and the feedhole that is communicated with guide hole, feedhole and feeding spiro rod articulate, bearing is provided with the drive unit of interlock feeding spiro rod rotation outward, agitating device comprises the box body that combines with bearing, stirring parts is pivoted in the box body, box body is provided with the drive unit that the interlock stirring parts is rotated outward, and box body further comprises the discharge port that aligns with the guide hole of bearing, and agitating device further comprises the valve that slidably is arranged in the discharge port, and drive the actuator that valve moves between enable possition and closed position, when valve was positioned at the enable possition, the discharge port of box body was communicated with the guide hole of bearing, when valve is positioned at the closed position discharge port is sealed.

After the stirring parts that the utility model utilizes agitating device mixes for the feed particulate material of unlike material in advance, feeding spiro rod via pay-off advances and mixes once more again, the feed particulate material that makes unlike material can be sent into feed hopper uniformly via the feed pipe place and fall into the chamber of cavity, make the heater heating and the feed particulate material of fusion unlike material, can be mixed into molten polymer uniformly, extrude the polymer of shaping by this, promptly has stable physical property (hardness for example, heat resistance, hot strength, ductility, malleability ...), and the made raw material of polymer can produce the article with stable physical property and preferable yield according to this.

Description of drawings

Fig. 1 is the utility model outside drawing.

Fig. 2 is the stereogram of relevant agitating device and pay-off in the utility model.

Fig. 3 is the three-dimensional exploded view of relevant agitating device in the utility model.

Fig. 4 is about the combination appearance figure of agitating device and pay-off in the utility model.

Fig. 5 is the 5-5 hatching line cutaway view (valve is positioned at the closed position) of Fig. 4.

Fig. 6 is positioned at the enable possition schematic diagram for the valve of pay-off in the utility model.

Fig. 7 is the 7-7 hatching line cutaway view among Fig. 5.

20, extruder, 22, installing rack, 24, drive unit, 26, transmission device, 28, cavity, 28A, first end, 28B, second end, 30, chamber, 32, extrude screw rod, 36, driving end, 38, feed hopper, 40, heater, 56, module, 80, platform scale, 81, pay-off, 82, bearing, 84, peripheral surface, 86, joint face, 88, guide hole, 90, feedhole, 91, feeding spiro rod, 92, front end, 93, the rear end, 94, support, 96, feed pipe, 98, binding end, 111, the port of export, 113, drive unit, 115, agitating device, 117, box body, 119, first end wall, 131, second end wall, 133, surrounding wall, 135, room, 136, opening, 137, discharge port, 139, track, 151, column, 153, stirring parts, 155, axostylus axostyle, 157, stirring piece, 158, drive unit, 159, valve, 171, blind end, 173, link, 175, actuator, 177, actuator lever, 179, be connected part, 191, the socket part, 192, link, 193, passage, 195, first joint portion, 197, second joint portion, 199, cover plate, 211, axostylus axostyle.

The specific embodiment

Following institute drawings attached only is convenient to explain the utility model basic condition, among the figure will to the number that constitutes the preferred embodiment element, position, relation, and the extension of size will have illustrated, read and understand situation of the present utility model after relevant variation implement to belong to industry technical ability.In addition, after reading and understanding situation of the present utility model, cooperate specific strength, weight, intensity, the accurate dimension that reaches similar requirement and the change of dimension scale also to belong to industry technical ability.

In different accompanying drawings, indicate identical or like with same numeral; Please understand in addition in the literary composition such as " first ", " second ", " on ", D score, " preceding ", " back ", " interior ", " outward ", " end ", " portion " or the like and similar term only be convenient in person's reference diagram with the aid of pictures structure and only be used for helping to describe the utility model.

Extruder 20 of the present utility model comprises installing rack 22, the bottom of installing rack 22 sets firmly the drive unit 24 that constitutes such as motor, and set firmly transmission device 26(as shown in Figure 1) in a side of installing rack 22, the rotating shaft of drive unit 24 combines and interlock with transmission device 26, extruder 20 further comprises the cavity 28 that is installed on the installing rack 22, cavity 28 comprises the first end 28A and the second end 28B that separates relatively, further comprises the chamber 30 that is extended to the second end 28B by the first end 28A in the cavity 28.The first end 28A leading edge setting of cavity 28 can be for the module 56 of molten polymer extrusion molding, the outer surface that is pivoted in the chamber 30 has the extrusion screw rod 32 of screw thread, extrudes screw rod 32 1 ends and forms the driving end 36 that combines interlock with transmission device 26.Transmission device 26 sees through such as gear, sprocket wheel or belt pulley and reduces rotating speed, makes transmission device 26 can drive extrusion screw rod 32 and rotates slowly.

Extruder 20 comprises the feed hopper 38 in the second end 28B outside that is installed in cavity 28 in addition, feed hopper 38 is communicated with the chamber 30 of cavity 28, feed hopper 38 is used for receiving feed particulate material, and feed particulate material promptly falls into the chamber 30 of cavity 28 via feed hopper 38.

Extruder 20 also comprises several heaters 40 that are installed on the cavity 28, each heater 40 is used to promote cavity 28 temperature, make the feed particulate material that enters in the cavity 28, after heater via 40 heating, can be melt into the molten polymer of flow-like gradually, and can move towards module 56 via extruding screw rod 32 rotations, and outwards extrude the bar shaped polymer via module 56, after the output of bar shaped polymer, can form granulated polymer through the cutting (figure does not show) of cooling device cooling and cutting means again, it is various forms of article that the emission forming machine melt granules shaped polymer of follow-up manufacturing and injection molding are provided by this.

Extruder 20 is included in feed hopper 38 tops and pay-off 81(is set as shown in Figure 2), pay-off 81 comprises bearing 82, bearing 82 comprises peripheral surface 84, and the joint face 86 that is formed on peripheral surface 84 1 sides, comprise in the bearing 82 by peripheral surface 84 and along the feedhole 90 of horizontal expansion, bearing 82 comprises guide hole 88(such as the Fig. 5 and shown in Figure 7 that is formed on joint face 86 and extends to feedhole 90 in addition), pay-off 81 comprises the feed pipe 96 that is combined in peripheral surface 84, feed pipe 96 has the relative port of export 111 and binding end 98, the binding end 98 of feed pipe 96 is combined in the peripheral surface 84 of bearing 82 and aligns with feedhole 90, and the feeding spiro rod 91 that is pivoted in the feedhole 90, feeding spiro rod 91 has front end 92 and rear end 93(as shown in Figure 7), the front end 92 of feeding spiro rod 91 is positioned at the port of export 111 of feed pipe 96, and the drive unit 113 that combines interlock with the rear end 93 of feeding spiro rod 91 is set on the peripheral surface 84 of bearing 82.Pay-off 81 comprises that further platform scale 80(is as shown in Figure 4), platform scale 80 is electrical connected with controller (figure does not show), combines by support 94 between platform scale 80 and the bearing 82.

Pay-off 81 further comprises the agitating device 115 that is combined on the bearing 82, agitating device 115 comprises that box body 117(as shown in Figures 2 and 3), box body 117 comprises first end wall 119 and second end wall 131 that separates, and the surrounding wall 133 that between first end wall 119 and second end wall 131, extends, first and second end wall 119,131 and surrounding wall 133 define room 135 jointly with opening 136, opening 136 edges of box body 117 upper ends are with the be pivoted cover plate 199 of opening 136 of able to turn on or off box body 117 of axostylus axostyle 211, box body 117 comprises the discharge port 137 that is formed on surrounding wall 133 bottoms and extends to first end wall 119 in addition, discharge port 137 relative sides respectively form track 139, and the surrounding wall 133 of box body 117 and close discharge port 137 places form four columns 151.

The agitating device 115 of extruder 20 comprises stirring parts 153, stirring parts 153 has axostylus axostyle 155, the stirring piece 157 of continuous helical form is set on the axostylus axostyle 155, axostylus axostyle 155 two ends articulate with first end wall 119 of box body 117 and second end wall 131 respectively, stirring piece 157 peripheries are quite near the surrounding wall 133 of box body 117 inner faces, and on second end wall 131 of box body 117, drive unit 158 is set, drive unit 158 combines with axostylus axostyle 155 1 ends, can start axostylus axostyle 155 and rotate slowly.

Box body 117 bottoms of agitating device 115 further comprise slidably be arranged at discharge port 137 valve 159(as shown in Figure 3), valve 159 comprises relative blind end 171 and link 173.And comprise actuator 175, the actuator lever 177 that has telescopic action in the actuator 175, actuator 175 positioning and fixing are on the peripheral surface 84 in the bearing 82 of pay-off 81, and actuator lever 177 terminal windings are at the link 173 of valve 159, the actuator lever 177 of actuator 175 drives valve 159 and moves between enable possition and closed position, and opens or close the discharge port 137 of box body 117.

Comprise between agitating device 115 and the pay-off 81 and be connected part 179, be connected the socket part 191 that part 179 comprises tubulose, socket part 191 defines passage 193, socket part 191 further comprises the link 192 of arc, be connected part 179 and comprise first joint portion 195 that is formed on socket part 191 ends in addition, and two second joint portions 197 that are formed on cover street portion's 191 outer peripheral faces and separate with first joint portion 195, form the passage 193 that extends second joint portion by first joint portion 195 in the socket part 191.First joint portion 195 that is connected part 179 is installed on the joint face 86 of bearing 82 of pay-off 81,192 arc shapes with box body 117 surrounding walls 133 of the link of socket part 191 connect airtight mutually, make passage 193 alignment discharge ports 137, align with each column 151 in each second joint portion 197, by passing second joint portion 197, screw is screwed into fixed location in the column 151, make the discharge port 137 of box body 117, the passage 193 that is connected part 179 aligns with the guide hole 88 of bearing 82, and when valve 159 is positioned at the enable possition, the discharge port 137 of box body 117, being connected the passage 193 of part 179 and the guide hole 88 of bearing 82 is communicated with.

Agitating device 115 of the present utility model and pay-off 81 are arranged at the top of the feed hopper 38 of extruder 20, and the plastic material that causes oily pay-off 81 to derive can be entered in the chamber 30 by the feed hopper 38 of extruder 20.

Suppose that for convenience of description the utility model valve 159 is positioned at closed position (as shown in Figure 5), the blind end 171 of valve 159 is resisted against discharge port 137 ends and closes discharge port 13 and so the feed particulate material of unlike material is inserted in the room 135 of box body 117, and start drive unit 158 and can drive stirring parts 153 rotations, make the feed particulate material of unlike material be subjected to stirring parts 153 stirrings and evenly mixing in box body 117, platform scale 80 can measure the weight of feed particulate material in addition.After feed particulate material mixes, the actuator lever 177 of actuator 175 promotes valve 159 and moves to enable possition (as shown in Figure 6) by the closed position, cause the feed particulate material that mixes can be via discharge port 137, guide hole 88 falls into feedhole 90, can start feeding spiro rod 91 rotations this moment by drive unit 113, the feed particulate material that mixes is transported via feeding spiro rod 91 again, platform scale 80 is then controlled the rotating speed of feeding spiro rod 91 according to the vertical amount of feed particulate material, further the speed of extruder 20 feed particulate material is given in control by supply.Moreover fall into feed hopper 38 and enter in the chamber 30 of cavity 28, be heated into molten by heater 40, further squeeze out the module 56 outer granulated polymers of further making via extruding screw rod 32.

The utility model is stirred the feed particulate material of several unlike materials in advance by agitating device 115, just enter in the pay-off 81 after causing feed particulate material evenly to mix, the feed particulate material that further mixes enters extruder 20 and is heated into molten condition and also mixes easily, can make the granulated polymer with stable physical property at last.Pay-off 81 cooperates the weight of platform scale 80 detecting graininess plastic materials in addition, and further the feed particulate material that is mixed by the rotating speed control supply extruder 20 of adjusting feeding spiro rod 91 also helps with extruder 20 and makes the granulated polymer with good physical properties.

Basic condition of the present utility model is illustrated, and for having the common technical ability people's bodyguard in this area, many extensions and variation will be apparent and easy to know.For example, the shape or the quantity of the stirring piece 157 of the continuous helical form of stirring parts 153 can change, for example, stirring piece 157 forms discontinuous spiral forms and when having several pieces stirring pieces 157, also can mix for the feed particulate material of inserting unlike material in the box body 117.

Above specification institute disclosure can be implemented in other particular forms that do not break away from the utility model spirit or general characteristics, and these particular forms are pointed out, and is unrestricted so the embodiment that this specification discloses should be considered as illustrating.The scope of this creation is to be defined by appended claim, changes and will be included in this creation scope for the institute of impartial meaning that falls into claim and scope.

Claims (2)

1. a tool mixes the extruder of function, comprise at least one feed hopper (38), the top of this at least one feed hopper (38) is provided with pay-off (81), it is characterized in that: pay-off (81) more includes agitating device (115), agitating device (115) comprises box body (117), the stirring parts that is pivoted in the box body (117) (153), the outer drive unit (158) that interlock stirring parts (153) rotation is set of box body (117).

2. tool as claimed in claim 1 mixes the extruder of function, it is characterized in that: box body (117) further comprises discharge port (137), agitating device (115) further comprises the valve (159) that slidably is arranged in the discharge port (137), and drives the actuator (175) that valve (159) moves between enable possition and closed position.

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