CN211968381U

CN211968381U - Material strip cooling device of double-screw extruder

Info

Publication number: CN211968381U
Application number: CN202020307252.XU
Authority: CN
Inventors: 葛飞; 葛乾顺
Original assignee: Nanjing Shengchi Rubber And Plastic Machinery Manufacturing Co ltd
Current assignee: Nanjing Shengchi Rubber And Plastic Machinery Manufacturing Co ltd
Priority date: 2020-03-12
Filing date: 2020-03-12
Publication date: 2020-11-20
Anticipated expiration: 2030-03-12

Abstract

The utility model relates to a double screw extruder's material strip cooling device, it includes cooling water pool and a plurality of support frame, all rotate on each support frame and be connected with the roller, be equipped with a plurality of interval distribution's annular on the roller, be equipped with wind chamber in the roller, outside the roller was extended to the one end in wind chamber, a plurality of through-holes that communicate with wind chamber were all seted up to each annular tank bottom, be fixed with the ventilation pipe on the support frame, the one end and the wind chamber inner wall of ventilation pipe rotate to be connected, the support frame bottom is equipped with the air-blower, the air outlet and the ventilation pipe of air-blower are connected, be equipped with the ring piece on the ventilation. The utility model discloses have the effect that improves the eager grain shaping quality of material strip.

Description

Material strip cooling device of double-screw extruder

Technical Field

The utility model belongs to the technical field of the extruder technique and specifically relates to a material strip cooling device of double screw extruder is related to.

Background

The granulation mode of the plastic extruder mainly comprises two modes of brace granulation (cold cutting) and die surface granulation (hot cutting), wherein the brace granulation refers to that the material strips extruded by the extruder are cooled through a water tank or a conveying belt in the air so as to achieve the purposes of solidification and sizing, and the cooled material strips are cut into 2-5 mm particles in the granulator.

Chinese patent with publication number CN201736365U discloses a broken strip automatic alarm device for a water-cooling brace granulating production line of a double-screw extruder, wherein a cooling water tank is arranged between the double-screw extruder and the granulator, the mouth mold direction of the double-screw extruder faces the cooling water tank, a detector is arranged below the mouth mold of the double-screw extruder, and the detector is connected with the alarm through a signal line.

However, in the actual production process, the temperature of the material strip after the extruder is very high, the cooling effect by water is poor, and the hardness required by design cannot be achieved, so that the forming quality of particles after the material strip is granulated is easily influenced.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a double screw extruder's material strip cooling device has the effect that improves the material strip and cut grain shaping quality.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: the utility model provides a double screw extruder's material strip cooling device, includes cooling water pool and a plurality of support frame, each all rotate on the support frame and be connected with the roller, be equipped with a plurality of interval distribution's annular on the roller, be equipped with wind chamber in the roller, outside the roller was extended to the one end in wind chamber, each a plurality of through-holes that communicate with wind chamber are all seted up to the annular tank bottom, be fixed with the ventilation pipe on the support frame, the one end and the wind intracavity wall of ventilation pipe rotate to be connected, the support frame bottom is equipped with the air-blower, the air outlet and the ventilation pipe of air-blower are connected, be equipped with the ring piece on the ventilation pipe, the ring piece all is.

By adopting the technical scheme, in the traction process after the material strips are extruded, the material strips firstly pass through cooling water in a cooling water pool and then sequentially pass through the rollers, an operator starts a blower, air flow is input into an air cavity by virtue of a ventilation pipe, and the air flow is blown out from each through hole to carry out air cooling on the material strips, so that the combination of water cooling and air cooling on the material strips is realized, the material strips are fully cooled, and the effect of granulating and forming the material strips is improved; meanwhile, the material strips are separated by the annular grooves when passing through the roller, the mutual winding of the material strips is avoided, the contact area of each material strip and air is ensured, and in addition, the roller can rotate along with the traction of the material strips, so that the resistance received when the material strips are transmitted is reduced.

The present invention may be further configured in a preferred embodiment as: the two ends of the cooling water pool are rotatably connected with separating rollers, and a plurality of annular sinking grooves are formed in the separating rollers.

Through adopting above-mentioned technical scheme, two sides frame that will expect that the strip is located the cooling water through two separation rollers are from the cooling water pond lateral wall, have reduced the possibility that strip surface is worn and torn.

The present invention may be further configured in a preferred embodiment as: one side of cooling water pool is equipped with the cistern, be connected with a plurality of honeycomb ducts between cooling water pool and cistern, be equipped with the water pump on the cistern lateral wall, the water inlet and the delivery port of water pump are connected with inlet tube and outlet pipe respectively, the inlet tube is connected with the cistern, the outlet pipe is connected with cooling water pool.

Through adopting above-mentioned technical scheme, water in the cooling water pond overflows to the cistern in through each honeycomb duct, and water pump work is taken out and is carried to the cooling water pond in the cistern, forms a hydrologic cycle from this for the temperature in the cooling water pond keeps evenly, with reducing the cooling water local temperature too high, improves the cooling effect of material strip, and then improves the shaping quality after cutting grain of material strip.

The present invention may be further configured in a preferred embodiment as: each honeycomb duct passes through the fin connection, the fin is equipped with a plurality ofly.

Through adopting above-mentioned technical scheme, the fin has increased the area of contact of honeycomb duct with the air, and when the water in the cooling water pond input honeycomb duct was intraductal, the heat of aquatic was transmitted to the fin by the honeycomb duct on, in the air of retransmission, had played the effect of cooling water for the cooling water in the cooling water pond maintains the uniform temperature, has further improved the cooling effect of material strip.

The present invention may be further configured in a preferred embodiment as: the heat dissipation structure is characterized in that a base plate is arranged on the side wall of the water storage tank and located below the heat dissipation fins, and a fan is arranged on the base plate.

By adopting the technical scheme, an operator opens the fan to blow the radiating fins, so that the flowing speed of air flow around the radiating fins is increased, and the radiating effect of the radiating fins is enhanced.

The present invention may be further configured in a preferred embodiment as: the bottom end of the support frame is provided with a plurality of universal wheels and limiting sleeves, and T-shaped limiting rods are inserted into the limiting sleeves.

Through adopting above-mentioned technical scheme, the universal wheel has made things convenient for the operator to freely remove the position that the support frame adjusted the support frame, and when needs fixed support frame, the operator is at ground drilling, with the gag lever post patchhole in alright restrict the removal of support frame, simple swift.

The present invention may be further configured in a preferred embodiment as: one end of the limiting rod is in threaded connection with a rubber friction sleeve.

Through adopting above-mentioned technical scheme, the operator can select suitable rubber friction sleeve spiro union on the gag lever post according to the size of actual drilling, utilizes rubber friction sleeve and pore wall to support tightly and restrict rocking of gag lever post to improve the stability of support frame.

The present invention may be further configured in a preferred embodiment as: the ring piece is in threaded connection with the ventilation pipe, and the ventilation pipe is in threaded connection with an adjusting nut which is abutted against the ring piece.

By adopting the technical scheme, an operator rotates the ring piece, adjusts the gap between the ring piece and the end face of the ventilating pipe, ensures the free rotation of the roller, and the adjusting nut plays a role in abutting against the ring piece, thereby reducing the possibility of the backward movement of the ring piece.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the cooling effect of the material strips is enhanced by combining water cooling and air cooling, and the molding quality of the material strips after being granulated is improved; the material strips are separated by the ring grooves, so that the possibility of mutual winding of the material strips is reduced, and the traction and transmission of the material strips are facilitated;

2. the resistance on the material strip during transmission is reduced by the rotary arrangement of the roller; make the cooling water in the cooling water pond maintain in certain temperature range through hydrologic cycle and radiating mode of fin, increased the material strip cooling effect.

Drawings

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

Fig. 2 is a schematic structural diagram of the roller and the air chamber in the embodiment.

Fig. 3 is an enlarged view of a in fig. 2.

Fig. 4 is a schematic structural diagram for embodying the heat sink in the present embodiment.

Fig. 5 is an enlarged view at B in fig. 4.

In the figure, 1, a cooling water pool; 11. a support frame; 12. a roller; 13. a ring groove; 131. a through hole; 14. a wind cavity; 15. a vent pipe; 16. a blower; 17. a ring sheet; 18. a gasket; 19. adjusting the nut; 2. a separator roller; 21. sinking a groove; 22. a reservoir; 23. a flow guide pipe; 24. a water pump; 241. a water inlet pipe; 242. a water outlet pipe; 25. a heat sink; 26. a substrate; 261. a fan; 3. a universal wheel; 31. a limiting sleeve; 32. a limiting rod; 321. a rubber friction sleeve.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, for the material strip cooling device of the twin-screw extruder disclosed by the utility model, the material strip cooling device comprises a cooling water tank 1 and a plurality of support frames 11, a roller 12 is rotatably connected on each support frame 11, a plurality of annular grooves 13 are arranged on the circumferential surface of the roller 12 and are distributed along the axial direction of the roller 12 at intervals, a plurality of through holes 131 arranged in the circumferential direction are arranged at the bottom of each annular groove 13, an air cavity 14 is arranged in the roller 12, one end of the air cavity 14 extends out of the roller 12, the extended end is the opening end of the air cavity 14, and each through hole 131 is communicated with the air cavity 14; as shown in fig. 2 and 3, a ventilation pipe 15 is fixed on the support frame 11, the ventilation pipe 15 and the roller 12 are coaxially distributed and located on one side of an opening of the air cavity 14, one end of the ventilation pipe 15 extends into the air cavity 14 and is rotatably connected with the inner wall of the air cavity 14, a blower 16 is arranged at the bottom end of the support frame 11, an air outlet of the blower 16 is connected with the ventilation pipe 15, a ring sheet 17 and an adjusting nut 19 are connected to the ventilation pipe 15 in a threaded manner, the ring sheet 17 is located between the roller 12 and the adjusting nut 19, sealing gaskets 18 are arranged on opposite sides of the ring sheet 17 and the end of the roller 12, an operator rotates the ring sheet 17 to enable the two sealing gaskets 18 to be attached, a gap between the two sealing gaskets 18 is reduced under the condition that the roller 12 freely rotates, and then the adjusting nut.

As shown in fig. 4 and 5, the two ends of the cooling water pool 1 along the length direction are rotatably connected with the separating rollers 2, the two separating rollers 2 are respectively provided with a plurality of annular sinking grooves 21, and the widths of the sinking grooves 21 and the ring grooves 13 are both larger than the diameter of the material strip.

As shown in fig. 4, a water reservoir 22 is disposed on one side of the cooling water pool 1, a certain distance is formed between the cooling water pool 1 and the water reservoir 22, meanwhile, the height of the cooling water pool 1 is greater than that of the water reservoir 22, and a plurality of flow guide pipes 23 are connected between the cooling water pool 1 and the water reservoir 22, the flow guide pipes 23 are arranged along the length direction of the cooling water pool 1, the flow guide pipes 23 incline downwards towards the direction of the water reservoir 22, the flow guide pipes 23 are connected through cooling fins 25, the cooling fins 25 are disposed along the length direction of the flow guide pipes 23, a substrate 26 is disposed on the side wall.

As shown in fig. 2, the bottom end of the supporting frame 11 is provided with a plurality of universal wheels 3 and stop collars 31, the universal wheels 3 are abutted against the ground to support the supporting frame 11, each stop collar 31 is internally inserted with a T-shaped stop rod 32, and one end of each stop rod 32 penetrating through the stop collar 31 is connected with a rubber friction sleeve 321 through a thread.

The implementation principle of the embodiment is as follows: during actual work, the operator moves the support frame 11 first, arranges each support frame 11 along the material strip direction of pulling at an interval, utilizes the electric drill to drill holes on ground and the position corresponding to the stop collar 31 after arranging, and after drilling, the operator presses down the gag lever post 32 for in the rubber friction sleeve 321 patchhole, the rubber friction sleeve 321 supports tightly with the pore wall, fixes the gag lever post 32, thereby restricts the removal of support frame 11.

In the process of drawing the material strips, the material strips are separated one by one and pass through the cooling water tank 1, two sides of each material strip, which are immersed in water, are lapped on the separating rollers 2 and fall into the corresponding sinking grooves 21, and the material strips sequentially pass through the rollers 12 and fall into the ring grooves 13 after coming out of the water, so that the material strips are separated and are prevented from being wound together during transmission.

Because the temperature of the material strip is very high when the material strip is extruded from the die head of the extruder, the temperature of the water in the cooling water pool 1 can be gradually increased after the water is cooled for a long time, the water pump 24 and the fan 261 are started, the water in the water storage pool 22 is extracted and conveyed into the cooling water pool 1, and the water in the cooling water pool 1 overflows into the water storage pool 22 through the flow guide pipes 23 to form a water circulation, so that the water temperature in the cooling water pool 1 is uniform; when water is transmitted in the flow guide pipe 23, heat in the water is transmitted to the radiating fins 25 through the flow guide pipe 23 and then transmitted to the air through the radiating fins 25, so that the water temperature in the flow guide pipe 23 is reduced, the fan 261 blows air to the radiating fins 25, the flow of air flow is increased, the loss of the heat in the water is accelerated, the effect of cooling water flow is achieved, and the possibility of overhigh temperature of the water in the cooling water pool 1 is reduced; carry out dual cooling through water-cooling and forced air cooling to the material strip, cooperation hydrologic cycle and rivers cooling have strengthened the cooling effect of material strip for the material strip reaches the hardness that the technology required before cutting grain, thereby has improved the shaping quality that the material strip was cut grain, has reduced the material strip texture and has too soft and lead to twining the appearance of the condition such as sword.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a material strip cooling device of twin-screw extruder which characterized in that: comprises a cooling water pool (1) and a plurality of support frames (11), wherein each support frame (11) is rotatably connected with a roller (12), a plurality of annular grooves (13) distributed at intervals are arranged on the roller (12), an air cavity (14) is arranged in the roller (12), one end of the air cavity (14) extends out of the roller (12), a plurality of through holes (131) communicated with the air cavity (14) are formed at the bottom of each annular groove (13), a ventilation pipe (15) is fixed on the support frame (11), one end of the ventilation pipe (15) is rotatably connected with the inner wall of the air cavity (14), the bottom end of the supporting frame (11) is provided with a blower (16), the air outlet of the blower (16) is connected with a ventilation pipe (15), and a ring sheet (17) is arranged on the ventilating pipe (15), and sealing gaskets (18) are arranged on one sides of the ring sheet (17) opposite to the end parts of the rollers (12).

2. The strand cooling device of a twin-screw extruder as set forth in claim 1, wherein: both ends of cooling water pool (1) all rotate and are connected with and separate roller (2), two separate and all be equipped with a plurality of annular heavy grooves (21) on roller (2).

3. The strand cooling device of a twin-screw extruder as set forth in claim 2, wherein: one side of cooling water pool (1) is equipped with cistern (22), be connected with a plurality of honeycomb ducts (23) between cooling water pool (1) and cistern (22), be equipped with water pump (24) on cistern (22) lateral wall, the water inlet and the delivery port of water pump (24) are connected with inlet tube (241) and outlet pipe (242) respectively, inlet tube (241) are connected with cistern (22), outlet pipe (242) are connected with cooling water pool (1).

4. The strand cooling device of a twin-screw extruder as set forth in claim 3, wherein: the guide pipes (23) are connected through radiating fins (25), and the radiating fins (25) are provided with a plurality of radiating fins.

5. The strand cooling device of a twin-screw extruder as set forth in claim 4, wherein: be equipped with base plate (26) on the cistern (22) lateral wall, base plate (26) are located fin (25) below, and are equipped with fan (261) on base plate (26).

6. The strand cooling device of a twin-screw extruder as set forth in claim 1, wherein: the bottom end of the support frame (11) is provided with a plurality of universal wheels (3) and limiting sleeves (31), and T-shaped limiting rods (32) are inserted into the limiting sleeves (31).

7. The strand cooling device of a twin-screw extruder as set forth in claim 6, wherein: one end of the limiting rod (32) is in threaded connection with a rubber friction sleeve (321).

8. The strand cooling device of a twin-screw extruder as set forth in claim 1, wherein: the ring piece (17) is in threaded connection with the ventilation pipe (15), and the ventilation pipe (15) is in threaded connection with an adjusting nut (19) which is abutted against the ring piece (17).