CN219947204U - Flat belt inner and outer double-layer co-extrusion machine head - Google Patents

Abstract

The utility model relates to the technical field of hot extrusion spiral winding forming, and discloses a flat belt inner and outer double-layer co-extrusion machine head, which comprises a main machine head, wherein a screw is fixedly connected to the outer part of the main machine head, a main central flow layer is arranged in the middle of the main machine head, and a main composite channel is arranged on one side of the main machine head above the main central flow layer. This double-deck crowded aircraft nose altogether in flat area, it is fixed with host computer head, third aircraft nose, second aircraft nose and first aircraft nose through the nut, introduces the inside of first chute that gathers with host material and combined material respectively through the through-hole of main central flow layer and splitter box, from this makes between each group material to mix and extrude, from this makes the device can select the subassembly of corresponding quantity according to the demand to shunt the confluence and extrude, has improved the suitability of this device.

Description

Flat belt inner and outer double-layer co-extrusion machine head

Technical Field

The utility model relates to the technical field of hot extrusion spiral forming, in particular to a flat-belt inner and outer double-layer co-extrusion machine head.

Background

The extruder can divide the machine head into a right-angle machine head, an oblique-angle machine head and the like according to the material flow direction of the machine head and the included angle of the central line of the screw, the screw extruder is a pressure and a shearing force generated by rotation of the screw, so that materials can be fully plasticized and uniformly formed by a die, and the plastic extruder can be basically classified into a double-screw extruder, a single-screw extruder, a few multi-screw extruders and a screw-free extruder.

When producing buried PE or PP water supply and drainage pipes, it is necessary to use a hot extrusion spiral winding forming device, and the device usually heats and melts the materials and discharges the materials to the outside through a machine head, while the machine head used in the traditional hot extruder device can only extrude materials with single thickness or width, and still needs to be stretched to the required width and thickness through an external stretching machine at the later stage, and the traditional machine head can only pass through one group of materials, and when facing multiple groups of materials, the machine head needs to be put into the hot extrusion forming machine in advance in the device, so we propose a flat-belt internal and external double-layer co-extrusion machine head.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a flat-belt inner-outer double-layer co-extrusion machine head, which solves the problems in the prior art.

The utility model provides the following technical scheme: the utility model provides a double-deck crowded aircraft nose altogether in stratosphere, includes the host computer aircraft nose, the outside fixedly connected with screw rod of host computer aircraft nose, the main central stream layer has been seted up at the middle part of host computer aircraft nose, main composite channel has been seted up to the top that host computer aircraft nose one side is located main central stream layer, the splitter box has been seted up to the inside both sides that are located main composite channel of host computer head, the through-hole has been seted up to splitter box both sides bottom, the screw rod outside has been located the left side of host computer aircraft nose and has been cup jointed the third aircraft nose, the screw rod outside has been located the left side of third aircraft nose and has been cup jointed the second aircraft nose, the screw rod outside has been located the left side of second aircraft nose and has been cup jointed first aircraft nose.

Preferably, the middle part of the third machine head is provided with a third center layer, third diversion trenches are formed in the third machine head and above and below the third center layer, and third diversion trenches are formed in one side of the third diversion trenches.

Preferably, the middle part of the second machine head is provided with a second center layer, the second machine head is internally provided with a second diversion trench above and below the second center layer, and one side of the second machine head, which is internally provided with the second diversion trench, is provided with a second diversion trench.

Preferably, a first center layer is arranged in the middle of the first machine head, and first shunt grooves are arranged above and below the first center layer in the first machine head.

Preferably, the first machine head is internally provided with a first flow gathering groove at one side of the first center layer and the first flow dividing groove, and one side of the first flow gathering groove is provided with an extrusion groove.

Preferably, the main central flow layer, the third central layer, the second central layer and the first central layer correspond relatively, and the through holes at two sides of the diversion trench and the main composite channel correspond to the third diversion trench, the second diversion trench and the first diversion trench.

Preferably, nuts are arranged outside the extrusion groove, and the thicknesses of the main machine head, the third machine head, the second machine head and the first machine head are equal.

Compared with the prior art, the utility model has the following beneficial effects:

1. this double-deck crowded aircraft nose altogether in stratosphere outside, through the screw rod at the outside fixed connection of host computer head, at first dock back with host computer head and hot extruder, according to user's demand, select third aircraft nose, second aircraft nose and first aircraft nose that need suit, and cup joint in proper order in the outside of screw rod, then fix host computer head through the nut, third aircraft nose, second aircraft nose and first aircraft nose, then introduce the inside of first chute that gathers with host material and combined material respectively through the through-hole of main central flow layer and splitter box, from this make and can mix and extrude between each group material, from this makes the device can select the subassembly of corresponding quantity according to the demand to carry out the reposition of redundant personnel confluence and extrude, the suitability of this device has been improved.

2. This double-deck crowded aircraft nose altogether in flat area, through with main central stratum reticulare, third central stratum reticulare, second central stratum reticulare and first central stratum reticulare correspond, with the through-hole and the main compound passageway of splitter box respectively with third splitter box, second splitter box and first splitter box correspond for be progressive butt joint between each group aircraft nose, main material can collect and mix with combined material, the double-deck double opening setting of simultaneously through third splitter box, second splitter box and first splitter box, make each runner pressure distribution of this device more balanced, the cross-section velocity of flow is poor, the precision of extruding has been improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of a first handpiece of the present utility model;

FIG. 3 is a schematic cross-sectional view of a second handpiece of the present utility model;

FIG. 4 is a schematic cross-sectional view of a third handpiece of the present utility model;

fig. 5 is a schematic cross-sectional view of a structural master head of the present utility model.

In the figure: 1. a main head; 2. a primary central flow layer; 3. a main composite channel; 4. a shunt channel; 5. a third handpiece; 6. a third center layer; 7. a third shunt channel; 8. a third flow groove; 9. a second handpiece; 10. a second center layer; 11. a second diversion trench; 12. a second flow concentrating tank; 13. a first handpiece; 14. a first center layer; 15. a first shunt channel; 16. a first flow-gathering tank; 17. an extrusion tank; 18. and (3) a screw.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, a dual-layer co-extrusion head with inner and outer layers in a flat belt comprises a main head 1, wherein the main head 1 is used as a main butt joint structure of the device, the main head 1 is in butt joint with an external hot extruder, so that the stability of the installation between subsequent heads of the device is improved, a screw 18 is fixedly connected to the outside of the main head 1, the screw 18 is used as a connecting structure of the device, the main head 1, a third head 5, a second head 9 and a first head 13 in the device are all connected in series, or are selectively sleeved according to the requirement of a user, so that the device can use different progressive modes, the stability of the device in sleeve joint is improved, a main central flow layer 2 is arranged in the middle of the main head 1, the main central flow layer 2 is used as a central conveying channel of the device, and is used for conveying extruded main materials under the condition that the third head 5, the second head 9 and the first head 13 are in butt joint, introducing main material into the third center layer 6, the second center layer 10 and the first center layer 14, thereby completing progressive feeding of the main material, arranging a main composite channel 3 above the main center flow layer 2 on one side of the main machine head 1, arranging splitter boxes 4 on two sides of the main composite channel 3 inside the main machine head 1, splitting the composite material by the splitter boxes 4, arranging through holes on two sides of the splitter boxes 4, ensuring that the split composite material is conveyed into the lower layer of the third splitter boxes 7 by the through holes of the splitter boxes 4, sleeving a third machine head 5 on the left side of the main machine head 1 outside the screw 18, enabling the third machine head 5 to serve as an independent structure which can be matched and sleeved outside the screw 18 to increase progressive distance and splitting, the outside of screw rod 18 is located the left side of third aircraft nose 5 and has cup jointed second aircraft nose 9, and the effect of second aircraft nose 9 is the same with the effect of third aircraft nose 5, can select to cup joint under user's demand, increases progressive distance and the level of reposition of redundant personnel from this, and first aircraft nose 13 has been cup jointed in the left side that the screw rod 18 outside is located second aircraft nose 9, and first aircraft nose 13 is as the main extrusion equipment of this device, and it has played the effect of carrying out the mixing with each group material and unifying and extruding.

Referring to fig. 2-5, a third center layer 6 is provided in the middle of the third head 5, third diversion trenches 7 are provided above and below the third center layer 6 in the third head 5, third diversion trenches 8 are provided on one side of the third diversion trenches 7 in the diversion trenches 4, a second center layer 10 is provided in the middle of the second head 9, second diversion trenches 11 are provided above and below the second center layer 10 in the second head 9, a second diversion trench 12 is provided on one side of the second diversion trench 11 in the second head 9, a first center layer 14 is provided in the middle of the first head 13, first diversion trenches 15 are provided above and below the first center layer 14 in the first head 13, the third diversion trenches 7, the second diversion trenches 11 and the first diversion trenches 15 are all double-layered, the device is used for increasing the flow distribution effect, reducing the section flow velocity, the first machine head 13 is internally provided with a first flow collecting groove 16 positioned on one side of a first center layer 14 and a first flow distribution groove 15, the first flow collecting groove 16 is used as a final flow collecting channel of the device, the mixing of main materials and composite materials is ensured, one side of the first flow collecting groove 16 is provided with an extrusion groove 17, the main center flow layer 2, the third center layer 6, the second center layer 10 and the first center layer 14 are correspondingly corresponding, through holes on two sides of the flow distribution groove 4 and the main composite channel 3 are correspondingly mutually corresponding to the third flow distribution groove 7, the second flow distribution groove 11 and the first flow distribution groove 15, nuts are arranged on the outer side of the extrusion groove 17, and the thicknesses of the main machine head 1, the third machine head 5, the second machine head 9 and the first machine head 13 are equal.

Working principle: when in use, the main machine head 1 is firstly in butt joint with an external hot extruder, then the corresponding third machine head 5, second machine head 9 and first machine head 13 are selected according to the requirement of a user, the third machine head 5, the second machine head 9 and the first machine head 13 are sleeved outside the screw 18 in groups or are sleeved outside the screw 18 in whole, after the third machine head 5, the second machine head 9 and the first machine head 13 are sleeved, nuts outside the extrusion groove 17 are rotated to fix all groups of machine heads, then the main material is conveyed into the main central flow layer 2, as the main central flow layer 2 corresponds to the third central layer 6, the second central layer 10 and the first central layer 14, the flow rate of the main material is gradually reduced, and finally, the composite material is collected in the first flow-gathering groove 16, and is conveyed through the main composite channel 3, and after being split by the split-flow groove 4, the composite material is introduced into the third split-flow groove 7 through the through hole and the main composite channel 3, collected through the third flow-gathering groove 8, split again into the second split-flow groove 11, collected through the second flow-gathering groove 12, split again into the first split-flow groove 15, and finally collected in the first flow-gathering groove 16, so that each level of material is conveyed gradually, the flow speed of the material is reduced, collected with the interior of the first flow-gathering groove 16, and extruded uniformly through the extrusion groove 17.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Meanwhile, in the drawings of the present utility model, the filling pattern is only for distinguishing the layers, and is not limited in any way.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a double-deck crowded aircraft nose altogether in flat area, includes main aircraft nose (1), its characterized in that: the outside of the main machine head (1) is fixedly connected with a screw rod (18), a main central flow layer (2) is arranged in the middle of the main machine head (1), a main composite channel (3) is arranged above the main central flow layer (2) on one side of the main machine head (1), shunt channels (4) are arranged on two sides of the main composite channel (3) inside the main machine head (1), through holes are formed in the bottoms of two sides of the shunt grooves (4), a third machine head (5) is sleeved on the left side of the screw (18) outside the main machine head (1), a second machine head (9) is sleeved on the left side of the screw (18) outside the third machine head (5), and a first machine head (13) is sleeved on the left side of the screw (18) outside the second machine head (9).

2. The flat belt inner and outer twin-layer coextrusion head according to claim 1, wherein: the middle part of third aircraft nose (5) has seted up third central layer (6), third shunt channels (7) have been seted up to the top and the below that are located third central layer (6) in third aircraft nose (5) inside, third shunt channels (8) have been seted up to one side that shunt channels (4) inside are located third shunt channels (7).

3. The flat belt inner and outer twin-layer coextrusion head according to claim 2, wherein: the middle part of second aircraft nose (9) has seted up second central layer (10), second branch chute (11) have been seted up to the top and the below that are located second central layer (10) in second aircraft nose (9) inside, second chute (12) have been seted up to one side that is located second branch chute (11) in second aircraft nose (9) inside.

4. The flat belt inner and outer twin-layer coextrusion head according to claim 2, wherein: the middle part of first aircraft nose (13) has seted up first central layer (14), first shunt channels (15) have been seted up to the top and the below that lie in first central layer (14) in first aircraft nose (13) inside.

5. The flat belt inner and outer twin-layer coextrusion head according to claim 4, wherein: the first machine head (13) is internally provided with a first converging groove (16) positioned on one side of the first center layer (14) and the first flow dividing groove (15), and one side of the first converging groove (16) is provided with an extruding groove (17).

6. The flat belt inner and outer twin-layer coextrusion head according to claim 5, wherein: the main central flow layer (2), the third central layer (6), the second central layer (10) and the first central layer (14) are corresponding, and the through holes on two sides of the diversion channel (4) and the main composite channel (3) are corresponding to the third diversion channel (7), the second diversion channel (11) and the first diversion channel (15).

7. The flat belt inner and outer twin-layer coextrusion head according to claim 5, wherein: the outside of extrusion groove (17) is equipped with the nut, the thickness of host computer head (1), third aircraft nose (5), second aircraft nose (9) and first aircraft nose (13) equals.