CN208277389U - A kind of stone plastic floor double layer extrusion die - Google Patents

Abstract

The utility model discloses a kind of stone plastic floor double layer extrusion dies, are related to stone plastic floor production mold.The utility model includes: main extruding zone, and the outlet of the main extruding zone is divided into upper extruding zone, lower extruding zone to upper and lower two sides respectively by the demarcation plate of V-arrangement；Coldplate, the coldplate are located between the outlet of upper extruding zone and the outlet of lower extruding zone and extend to the direction far from main extruding zone；Cooling water accommodating chamber is equipped in coldplate, coldplate is respectively equipped with cooling water inlet and cooling water outlet close to one end of main extruding zone；Coldplate is equipped with transition plates far from one end of main extruding zone.The purpose of the utility model is to overcome the relatively low deficiencies of existing floor extrusion die production efficiency, provide a kind of stone plastic floor double layer extrusion die, significantly improve the production efficiency on floor.

Description

A kind of stone plastic floor double layer extrusion die

Technical field

The utility model relates to stone plastic floor production molds, squeeze out more specifically to a kind of stone plastic floor bilayer Mold.

Background technique

Need to complete extrusion molding process in stone plastic floor production process by extrusion die, extrusion die is mainly benefit It will be squeezed between plug and mouth mold and be formed by tripper by processed plastic hybrids such as hot melts with pressure.

Have related art scheme about the extrusion die of stone plastic floor in the prior art to disclose, such as patent publication No.: CN107718498A, publication date: on February 23rd, 2018, invention and created name are as follows: a kind of for producing plastic co-extrusion floor Extrusion die, the extrusion die of this application include die ontology, and die ontology includes die body plate, transition plates, supporting plate, confluence Plate, mouth template, cooling jacket and co-extrusion plate offer inside die body plate, transition plates and supporting plate and squeeze into runner.This application Extrusion die for producing plastic co-extrusion floor forms cooling jacket by the identical sub- cooling water plate of three sizes, cold in son But water intralamellar part opens up cooling water hole, thermally conductive sink, horizontal honeycomb duct and longitudinal honeycomb duct, greatly promotes the temperature of entire mold Regulation performance, production efficiency and quality greatly promote.

But the above application case mainly improves the production effect on floor from the thermoregulation energy angle for improving entire mold Rate, but its production efficiency is still relatively low, how to further increase the production efficiency of stone plastic floor is in the prior art urgently Technical problem to be solved.

Utility model content

1. utility model technical problems to be solved

The purpose of the utility model is to overcome the relatively low deficiencies of existing floor extrusion die production efficiency, provide A kind of stone plastic floor double layer extrusion die, significantly improves the production efficiency on floor.

2. technical solution

In order to achieve the above objectives, technical solution provided by the utility model are as follows:

The stone plastic floor double layer extrusion die of the utility model, comprising:

Main extruding zone, the outlet of the main extruding zone by the demarcation plate of V-arrangement respectively to upper and lower two sides be divided into upper extruding zone, Lower extruding zone；

Coldplate, the coldplate are located between the upper extruding zone outlet and the lower extruding zone outlet and squeeze to far from main The direction of section extends out；The lower end surface of the upper surface of the coldplate and the upper extruding zone outlet is in same level, institute The lower surface of coldplate and the upper surface of the lower extruding zone outlet are stated in same level；Cooling is equipped in the coldplate Water accommodating chamber, the coldplate are respectively equipped with cooling water inlet and cooling water outlet close to one end of the main extruding zone；It is described Coldplate is equipped with transition plates far from one end of the main extruding zone, and the lower surface of the transition plates and the lower surface of the coldplate exist In same level, the upper surface of transition plates is the inclined plate being obliquely installed, one end of the inclined plate and the coldplate upper surface End connection, the other end of the inclined plate are connect with the lower surface of the transition plates.

It is further improved as the utility model, isolation board is equipped in the cooling water accommodating chamber, which will Cooling water accommodating chamber is divided into upper cooling water accommodating chamber and lower cooling water accommodating chamber, and the isolation board is in one far from main extruding zone End is equipped with through-hole, and the cooling water inlet is connected to the upper cooling water accommodating chamber, the cooling water outlet and the lower cooling The connection of water accommodating chamber.

It is further improved as the utility model, further includes circulating cooling part, the circulating cooling part includes:

Sprinkler pipe, the sprinkler pipe are connected to by pipeline with the cooling water outlet；

Cold water case, the inside of the cold water case are equipped with a radiating part, and the radiating part is conical structure；The cold water case Bottom is connected to by pipeline with one end of circulating pump, and the other end of circulating pump is connected to by pipeline with the cooling water inlet；

The bottom of dust-collecting bucket, dust-collecting bucket is equipped with circular through hole, which is located at the top on the radiating part vertex, institute It states inside the dust-collecting bucket below the lower end face of sprinkler pipe.

Further improved as the utility model, the upper surface and lower surface of the coldplate be equipped with it is several with The water seepage hole of cooling water accommodating chamber connection is communicated with a soakaway trench on each water seepage hole, and the soakaway trench is respectively positioned on described In cooling water accommodates, and it is less than or equal to 1mm on the soakaway trench at the minimum of aperture.

It is further improved as the utility model, the soakaway trench is for aperture from both ends respectively to decrement at center Structure.

It is further improved as the utility model, the junction of the inclined plate and the coldplate upper surface is circular arc Transition.

It is further improved as the utility model, lower extruding zone is equipped with along the lower section far from main extruding zone direction and passes Send band.

3. beneficial effect

Using technical solution provided by the utility model, compared with prior art, have the following beneficial effects:

(1) in the utility model, main extruding zone, demarcation plate, upper extruding zone, lower extruding zone, coldplate and transition plates etc. Mutual cooperation, enable the mixture one-pass molding squeezed out from screw extruder be two pieces of floors, significantly improve PVC The production efficiency of sheet floor.

(2) in the utility model, the outlet of main extruding zone is divided into upper squeeze to upper and lower two sides respectively by the demarcation plate of V-arrangement Section, lower extruding zone out can once squeeze out two pieces of floors, meanwhile, coldplate is located at the outlet of upper extruding zone and the outlet of lower extruding zone Between and to far from main extruding zone direction extend, the upper surface of coldplate and upper extruding zone outlet lower end surface in same level On face, the upper surface of the lower surface of coldplate and the outlet of lower extruding zone is in same level, so that the upper extrusion after squeezing out Plate lower surface is fitted closely with coldplate upper surface, and upper extrusion floor is fed forward under the support on surface on the cooling plate, lower to squeeze Floor upper surface is cooled plate lower surface upper limit in the horizontal direction out, lower extrusion floor under the fitting of coldplate lower surface to Preceding conveying；Be equipped with cooling water accommodating chamber in coldplate, coldplate close to one end of main extruding zone be respectively equipped with cooling water inlet and Cooling water outlet, cooling water accommodating chamber is interior to be equipped with isolation board, which is divided into upper cooling water for cooling water accommodating chamber and accommodates Chamber and lower cooling water accommodating chamber, isolation board are equipped with through-hole, cooling water inlet and the upper cooling water capacity in one end far from main extruding zone Chamber of receiving connection, cooling water outlet is connected to lower cooling water accommodating chamber, so that from the recirculated cooling water of cooling water inlet entrance cold But the water capacity is received the intracavitary direction along the downward cooling water accommodating chamber of upper cooling water accommodating chamber and is circulated, to not stop to coldplate Surface below upper surface is cooled down, it is ensured that the lower surface on the upper extrusion floor after extrusion and the lower upper surface for squeezing out floor are equal Be cooled rapidly solidification, when upper extrusion floor slides along transition plates to lower extrusion floor upper surface, upper extrusion floor and under Squeezing out will not be bonded between floor, be convenient for subsequent separation.

(3) in the utility model, coldplate far from main extruding zone one end be equipped with transition plates, the lower surface of the transition plates with In same level, the upper surface of transition plates is the inclined plate being obliquely installed, one end of inclined plate and cooling for the lower surface of coldplate The connection of plate upper surface end, the other end of inclined plate and the lower surface of transition plates connect, and setting inclined plate can be successfully by upper extrusion ground Plate is transitioned on lower extrusion floor, is reached and is squeezed out floor, lower extrusion floor stacked on top of each otherly by steady, the synchronous mesh transported , improve the conevying efficiency on floor.

(4) in the utility model, circulating cooling part includes: sprinkler pipe, which passes through pipeline and cooling water outlet Connection；The inside of cold water case, the cold water case is equipped with a radiating part, and radiating part is conical structure；The bottom of cold water case passes through pipe Road is connected to one end of circulating pump, and the other end of circulating pump is connected to by pipeline with cooling water inlet；Dust-collecting bucket, the bottom of dust-collecting bucket Portion is equipped with circular through hole, which is located at the top on radiating part vertex, in the dust-collecting bucket below the lower end face of sprinkler pipe Portion, the cooling recirculated water of the needs sprayed from sprinkler pipe are fallen into dust-collecting bucket, and the recirculated water collected in dust-collecting bucket is from its bottom Circular through hole drops down onto radiating part vertex, and then recirculated water is along the radiating part outer surface of conical structure, from radiating part vertex to Radiating part bottom surface flows down, and the air under circulating water flow in the process with surrounding is effectively exchanged heat, and recirculated water after cooling falls into cool It is collected in water tank, then cooling water after cooling is evacuated in coldplate by circulating pump again and carries out Continuous Heat Transfer in cold water case； Wherein, it designs inside the dust-collecting bucket below the lower end face of sprinkler pipe, is equipped with circular through hole in the bottom of dust-collecting bucket, and by the circle Shape through-hole is placed in the top on radiating part vertex, and the recirculated water sprayed from sprinkler pipe is enabled all effectively to drop down onto heat dissipation first Portion vertex is conducive to subsequent heat exchange；Wherein, design radiating part is conical structure, allows recirculated water along the scattered of conical structure Hot portion outer surface, is flowed down from radiating part vertex to radiating part bottom surface so that recirculated water during flowing down with the contact surface of air Product is significantly expanded, to significantly improve the cooling effect of recirculated water.

Detailed description of the invention

It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also To obtain other relevant attached drawings according to these attached drawings.

Fig. 1-1 is the structural schematic diagram of the stone plastic floor double layer extrusion die of embodiment；

Fig. 1-2 is the structural schematic diagram of circulating cooling part in embodiment；

Fig. 1-3 is the structural schematic diagram of soakaway trench in embodiment；

Fig. 1-4 is the overlooking structure diagram of dust-collecting bucket in embodiment.

Label declaration in schematic diagram: 101, main extruding zone；102, demarcation plate；103, upper extruding zone；104, lower extruding zone； 105, coldplate；1051, isolation board；1052, soakaway trench；1053, cooling water inlet；1054, cooling water outlet；106, transition Plate；107, conveyer belt；108, cold water case；1081, radiating part；1082, dust-collecting bucket；109, sprinkler pipe；110, circulating pump.

Specific embodiment

It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Therefore, below to providing in the accompanying drawings The detailed description of the embodiments of the present invention be not intended to limit the range of claimed invention, but only Indicate the selected embodiment of the utility model.Based on the embodiments of the present invention, those of ordinary skill in the art are not having Every other embodiment obtained under the premise of creative work is made, is fallen within the protection scope of the utility model.

For the content for further appreciating that the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments.

Embodiment 1

In conjunction with Fig. 1-1, Fig. 1-2, Fig. 1-3 and Fig. 1-4, the stone plastic floor double layer extrusion die of the present embodiment, comprising: main to squeeze Section 101 out, the outlet of the main extruding zone 101 by the demarcation plate 102 of V-arrangement respectively to upper and lower two sides be divided into upper extruding zone 103, Lower extruding zone 104；Coldplate 105, the coldplate 105 be located at upper extruding zone 103 outlet lower extruding zone 104 outlet between and to Direction far from main extruding zone 101 extends；The lower end surface of the upper surface of coldplate 105 and the outlet of upper extruding zone 103 is in same water In plane, the upper surface of the lower surface of coldplate 105 and the outlet of lower extruding zone 104 is in same level；It is set in coldplate 105 There is cooling water accommodating chamber, coldplate 105 is respectively equipped with cooling water inlet 1053 close to one end of main extruding zone 101 and cooling water goes out Mouth 1054；Coldplate 105 is equipped with transition plates 106, the lower surface of the transition plates 106 and cooling far from one end of main extruding zone 101 In same level, the upper surface of transition plates 106 is the inclined plate being obliquely installed for the lower surface of plate 105, one end of inclined plate with it is cold But 105 upper surface end of plate connects, and the other end of inclined plate is connect with the lower surface of transition plates 106.Wherein, in cooling water accommodating chamber Equipped with isolation board 1051, which cooling water accommodating chamber is divided into upper cooling water accommodating chamber and lower cooling water accommodates Chamber, isolation board 1051 are equipped with through-hole in one end far from main extruding zone 101, and cooling water inlet 1053 and upper cooling water accommodating chamber connect Logical, cooling water outlet 1054 is connected to lower cooling water accommodating chamber.The stone plastic floor double layer extrusion die of the present embodiment further includes following Ring cooling segment, circulating cooling part include: sprinkler pipe 109, which is connected by pipeline and cooling water outlet 1054 It is logical；Cold water case 108, the inside of the cold water case 108 are equipped with a radiating part 1081, and radiating part 1081 is conical structure；Cold water case 108 bottom is connected to by pipeline with one end of circulating pump 110, and the other end of circulating pump 110 passes through pipeline and cooling water inlet 1053 connections；The bottom of dust-collecting bucket 1082, dust-collecting bucket 1082 is equipped with circular through hole, which is located at 1081 vertex of radiating part Top, inside the dust-collecting bucket 1082 below the lower end face of sprinkler pipe 109；Lower extruding zone 104 is along far from main extruding zone 101 The lower section in direction is equipped with conveyer belt 107.

Enter in main extruding zone 101 from the mixture squeezed out in screw extruder, under the action of demarcation plate 102 of V-arrangement, Mixture is divided into two-way and respectively enters extruding zone 103, lower extruding zone 104 and respectively from upper extruding zone 103, lower extruding zone 104 Middle extrusion, the isolation of plate 105 that is cooled of the floor after extrusion is upper extrusion floor and lower extrusion floor, and is passed through in coldplate 105 The cooling water of circulation, so that the upper lower surface for squeezing out floor and the lower upper surface for squeezing out floor are cooled rapidly solidification, when upper After extrusion floor is slided from transition plates 106, upper extrusion floor is stacked on lower extrusion floor, passes through the effect of conveyer belt 107 It is transported by steady, synchronous with lower extrusion floor in upper extrusion floor.

In the present embodiment, main extruding zone 101, demarcation plate 102, upper extruding zone 103, lower extruding zone 104, coldplate 105 with And the mutual cooperation of transition plates 106 etc., enable the mixture one-pass molding squeezed out from screw extruder to be two pieces of floors, Significantly improve the production efficiency on PVC sheet floor.

In the present embodiment, on the outlet of main extruding zone 101 is divided into respectively by the demarcation plate 102 of V-arrangement to upper and lower two sides Extruding zone 103, lower extruding zone 104 can once squeeze out two pieces of floors, meanwhile, coldplate 105 is located at the outlet of upper extruding zone 103 Extend between the lower outlet of extruding zone 104 and to the direction far from main extruding zone 101, the upper surface of coldplate 105 and upper extrusion In same level, the upper surface of the lower surface of coldplate 105 and the outlet of lower extruding zone 104 exists for the lower end surface of 103 outlet of section In same level, so that the upper extrusion floor lower surface after squeezing out is fitted closely with 105 upper surface of coldplate, upper extrusion floor It is fed forward under the support of 105 upper surface of coldplate, lower extrusion floor upper surface is cooled 105 lower surface of plate in the horizontal direction Upper limit, lower extrusion floor are fed forward under the fitting of 105 lower surface of coldplate；Cooling water is equipped in coldplate 105 to accommodate Chamber, coldplate 105 are respectively equipped with cooling water inlet 1053 and cooling water outlet 1054 close to one end of main extruding zone 101, cooling The water capacity receive it is intracavitary be equipped with isolation board 1051, the isolation board 1051 by cooling water accommodating chamber be divided into upper cooling water accommodating chamber and under it is cold But water accommodating chamber, isolation board 1051 are equipped with through-hole, cooling water inlet 1053 and upper cooling water in one end far from main extruding zone 101 Accommodating chamber connection, cooling water outlet 1054 are connected to lower cooling water accommodating chamber, so that the circulation entered from cooling water inlet 1053 Cooling water circulates in cooling water accommodating chamber along the direction of the downward cooling water accommodating chamber of upper cooling water accommodating chamber, thus not Stop cooling down surface below 105 upper surface of coldplate, it is ensured that the lower surface on the upper extrusion floor after extrusion and lower extrusion The upper surface on floor is cooled rapidly solidification, when upper extrusion floor slides along transition plates 106 to lower extrusion floor upper surface When, it will not be bonded between upper extrusion floor and lower extrusion floor, be convenient for subsequent separation.

In the present embodiment, coldplate 105 is equipped with transition plates 106 far from one end of main extruding zone 101, the transition plates 106 Lower surface and the lower surface of coldplate 105 are in same level, and the upper surface of transition plates 106 is the inclined plate being obliquely installed, tiltedly One end of plate is connect with 105 upper surface end of coldplate, and the other end of inclined plate is connect with the lower surface of transition plates 106, and setting is oblique Upper extrusion floor can be successfully transitioned on lower extrusion floor by plate, reached and squeezed out floor, lower extrusion floor stacked on top of each otherly By steady, the synchronous purpose transported, the conevying efficiency on floor is improved.

In the present embodiment, circulating cooling part includes: sprinkler pipe 109, which passes through pipeline and cooling water outlet 1054 connections；Cold water case 108, the inside of the cold water case 108 are equipped with a radiating part 1081, and radiating part 1081 is conical structure； The bottom of cold water case 108 is connected to by pipeline with one end of circulating pump 110, and the other end of circulating pump 110 passes through pipeline and cooling Water inlet 1053 is connected to；The bottom of dust-collecting bucket 1082, dust-collecting bucket 1082 is equipped with circular through hole, which is located at radiating part The top on 1081 vertex, inside the dust-collecting bucket 1082 below the lower end face of sprinkler pipe 109, the needs that are sprayed from sprinkler pipe 109 Cooling recirculated water is fallen into dust-collecting bucket 1082, and the recirculated water collected in dust-collecting bucket 1082 drops down onto scattered from the circular through hole of its bottom Hot 1081 vertex of portion, then recirculated water is along 1081 outer surface of radiating part of conical structure, from 1081 vertex of radiating part to dissipating Hot 1081 bottom surface of portion flows down, and the air under circulating water flow in the process with surrounding is effectively exchanged heat, and recirculated water after cooling is fallen into It is collected in cold water case 108, then cooling water after cooling is evacuated in coldplate 105 by circulating pump 110 again in cold water case 108 Carry out Continuous Heat Transfer；Wherein, it designs inside the dust-collecting bucket 1082 below the lower end face of sprinkler pipe 109, in dust-collecting bucket 1082 Bottom is equipped with circular through hole, and the circular through hole is placed in the top on 1081 vertex of radiating part, so that spraying from sprinkler pipe 109 Recirculated water all can effectively drop down onto 1081 vertex of radiating part first, be conducive to subsequent heat exchange；Wherein, radiating part 1081 is designed For conical structure, allow recirculated water along 1081 outer surface of radiating part of conical structure, from 1081 vertex of radiating part to heat dissipation 1081 bottom surface of portion flows down, so that recirculated water is significantly expanded during flowing down with the contact area of air, follows to significantly improve The cooling effect of ring water.

Embodiment 2

The stone plastic floor double layer extrusion die of the present embodiment, basic structure is same as Example 1, further: cold But the upper surface and lower surface of plate 105 is equipped with several water seepage holes being connected to cooling water accommodating chamber, connects on each water seepage hole It is connected with a soakaway trench 1052, soakaway trench 1052 is respectively positioned in cooling water accommodates, and soakaway trench 1052 is aperture from both ends respectively in It is less than or equal to 1mm at the minimum of aperture in the structure and soakaway trench 1052 reduced at the heart.

In the present embodiment, it is equipped with and several is connected to cooling water accommodating chamber in the upper surface and lower surface of coldplate 105 Water seepage hole, be communicated with a soakaway trench 1052 on each water seepage hole, all soakaway trench 1052 are respectively positioned in cooling water accommodates so that The cooling water a part circulated inside coldplate 105 is uniformly spread to coldplate 105 along soakaway trench 1052, water seepage hole Upper surface and lower surface, so that the upper surface and lower surface in coldplate 105 is respectively formed water film, it is on the move on It squeezes out floor lower surface and lower extrusion floor upper surface and forms heat convection with the above water film respectively, while cooperating coldplate The heat transfer of 105 upper surface and lower surfaces itself, so as to effectively by upper extrusion floor lower surface and lower extrusion floor Upper surface is cooled and solidified, and is provided safeguard for upper extrusion floor and the lower stacked transport for squeezing out floor；Wherein, soakaway trench is designed 1052 are less than or equal at the minimum of aperture in the structure of decrement at center and setting soakaway trench 1052 for aperture from both ends respectively 1mm, so that soakaway trench 1052 plays the role of capillary, so that cooling water is slow, continuous, uniform be pumped to coldplate 105 Upper and lower surfaces, while the aperture of soakaway trench 1052 is reduced at center respectively from both ends, so that it makees with certain water lock With avoiding a large amount of cooling waters from directly quickly spraying by soakaway trench 1052 influences to squeeze out floor lower surface and lower extrusion floor The flatness of upper surface, it is ensured that product quality.

Embodiment 3

The stone plastic floor double layer extrusion die of the present embodiment, basic structure is same as Example 2, further: tiltedly The junction of plate and 105 upper surface of coldplate is arc transition.

In the present embodiment, the junction of inclined plate and 105 upper surface of coldplate is arc transition, enables and squeezes out floor Smooth is transitioned on inclined plate by 105 upper surface of coldplate, it is ensured that above squeezes out the flatness of floor lower surface.

Schematically the utility model and embodiments thereof are described above, description is not limiting, attached drawing Shown in be also one of the embodiments of the present invention, actual structure is not limited to this.So if this field Those of ordinary skill enlightened by it, without deviating from the purpose of the present invention, not inventively design Frame mode similar with the technical solution and embodiment, all should belong to the protection range of the utility model.

Claims (7)

1. a kind of stone plastic floor double layer extrusion die, characterized by comprising:

The outlet of main extruding zone (101), the main extruding zone (101) is separated to upper and lower two sides respectively by the demarcation plate (102) of V-arrangement For upper extruding zone (103), lower extruding zone (104)；

Coldplate (105), the coldplate (105) are located at upper extruding zone (103) outlet and lower extruding zone (104) outlet Between and to far from main extruding zone (101) direction extend；The upper surface of the coldplate (105) and the upper extruding zone (103) in same level, the lower surface of the coldplate (105) and the lower extruding zone (104) go out for the lower end surface exported The upper surface of mouth is in same level；Cooling water accommodating chamber is equipped in the coldplate (105), the coldplate (105) is leaned on One end of the nearly main extruding zone (101) is respectively equipped with cooling water inlet (1053) and cooling water outlet (1054)；The cooling Plate (105) far from the main extruding zone (101) one end be equipped with transition plates (106), the lower surface of the transition plates (106) with it is described In same level, the upper surface of transition plates (106) is the inclined plate being obliquely installed for the lower surface of coldplate (105), described oblique One end of plate is connect with the coldplate (105) upper surface end, under the other end of the inclined plate and the transition plates (106) Surface connection.

2. stone plastic floor double layer extrusion die according to claim 1, it is characterised in that: set in the cooling water accommodating chamber There are isolation board (1051), which cooling water accommodating chamber is divided into upper cooling water accommodating chamber and lower cooling water accommodates Chamber, the isolation board (1051) are equipped with through-hole, the cooling water inlet (1053) and institute in one end far from main extruding zone (101) The connection of cooling water accommodating chamber is stated, the cooling water outlet (1054) is connected to the lower cooling water accommodating chamber.

3. stone plastic floor double layer extrusion die according to claim 2, it is characterised in that further include circulating cooling part, institute Stating circulating cooling part includes:

Sprinkler pipe (109), the sprinkler pipe (109) are connected to by pipeline with the cooling water outlet (1054)；

The inside of cold water case (108), the cold water case (108) is equipped with a radiating part (1081), and the radiating part (1081) is circular cone Body structure；The bottom of the cold water case (108) is connected to by pipeline with one end of circulating pump (110), circulating pump (110) it is another End is connected to by pipeline with the cooling water inlet (1053)；

The bottom of dust-collecting bucket (1082), dust-collecting bucket (1082) is equipped with circular through hole, which is located at the radiating part (1081) top on vertex, the dust-collecting bucket (1082) below the lower end face of the sprinkler pipe (109) are internal.

4. stone plastic floor double layer extrusion die according to claim 3, which is characterized in that the coldplate (105) it is upper Surface and lower surface are equipped with several water seepage holes being connected to the cooling water accommodating chamber, are communicated with an infiltration on each water seepage hole Water pipe (1052), the soakaway trench (1052) are respectively positioned in the cooling water accommodates, and aperture is most on the soakaway trench (1052) Small place is less than or equal to 1mm.

5. stone plastic floor double layer extrusion die according to claim 4, which is characterized in that the soakaway trench (1052) is hole Diameter is from both ends respectively to the structure of decrement at center.

6. stone plastic floor double layer extrusion die described in -5 any one according to claim 1, which is characterized in that the inclined plate with The junction of coldplate (105) upper surface is arc transition.

7. stone plastic floor double layer extrusion die described in -5 any one according to claim 1, which is characterized in that lower extruding zone (104) conveyer belt (107) are equipped with along the lower section far from main extruding zone (101) direction.