CN109878054B

CN109878054B - Double-screw extruder

Info

Publication number: CN109878054B
Application number: CN201910282866.9A
Authority: CN
Inventors: 陆钉毅
Original assignee: Wuxi Boyu Plastic Machinery Co ltd
Current assignee: Wuxi Boyu Plastic Machinery Co ltd
Priority date: 2019-04-10
Filing date: 2019-04-10
Publication date: 2021-07-09
Anticipated expiration: 2039-04-10
Also published as: CN109878054A

Abstract

The invention relates to a double-screw extruder which comprises a base and a barrel body, wherein the barrel body is formed by hermetically connecting a middle fixed barrel section and two movable barrel sections at two sides, two inner cavities for placing screws are arranged in the barrel body, the two screws penetrate through the inner cavities, one ends of the screws penetrate through the barrel body and are connected with bearing seats movably arranged on a side plate on the base, one ends of the screws penetrating through the bearing seats are connected with driving wheels, the driving wheels of the two screws are connected with a driving end of a motor on the base through driving chains, tensioning wheels for tensioning the driving chains are further arranged on the side plate, the upper end of the barrel body is further connected with a feeding mechanism, the fixed barrel section and the movable barrel section of the barrel body are movably connected to the base through supports and are provided with lifting seats, the extruder, the barrel body and the.

Description

Double-screw extruder

Technical Field

The invention relates to an extruder, in particular to a double-screw extruder.

Background

The screw extruder relies on the rotatory pressure and the shearing force that produces of screw rod, can make the material fully carry out plastify and homogeneous mixing, and through the bush shaping, conventional extruder is comparatively troublesome when maintaining or trade the look clearance, need wholly take out the screw rod or dismantle down the barrel, and not only waste time and energy, and the cleaning performance is not good.

Disclosure of Invention

The applicant aims at overcoming the defects and researches and improves the defects and provides a double-screw extruder.

The technical scheme adopted by the invention is as follows:

the utility model provides a double screw extruder, includes base and barrel, the barrel is connected into by the removal section of thick bamboo section sealing of middle part fixed cylinder section and both sides, sets up two inner chambers that are used for placing the screw rod in the barrel, and two screw rods wear inner chamber, and screw rod one end is passed and is connected on the barrel and the curb plate on the base the bearing frame that removes the setting, and the screw rod passes the one end of bearing frame and connects the drive wheel, and the drive wheel of two screw rods passes through the drive chain to be connected with the drive end of the motor on the base, still set up the take-up pulley of tensioning drive chain on the curb plate, feed mechanism is still connected to the barrel upper end, the fixed cylinder section and the removal section of thick.

As a further improvement of the above technical solution:

the lifting seat is provided with a threaded through hole, an adjusting bolt is connected in the threaded through hole, and the lower end of the adjusting bolt is connected into the threaded hole formed in the base.

A waist-shaped groove is formed in the upper end of the lifting seat, a nut positioning through groove is formed in the lower end of the lifting seat, guide grooves are formed in two sides of the nut positioning through groove, guide blocks are arranged on two sides of a matched nut, the nut penetrates through the guide blocks and is movably arranged in the guide grooves in the nut positioning through groove, and a bolt penetrates through the support, the waist-shaped groove and the nut to be connected so as to fix the support and the lifting seat together.

Tensioning seat is connected to the take-up pulley, tensioning seat passes through the spring coupling fixing base, and tensioning seat upper end is located the spring inboard and sets up the uide pin, the uide pin is worn in the guiding hole of fixing base, the fixing base is connected to on the curb plate through the connecting pin, and curb plate cooperation connecting pin sets up upper and lower two sets of connecting holes.

And two sides of the bracket connected with the lower end of the movable cylinder section are positioned on the lifting seat and are also connected with a movable driving part.

Bearing mounting grooves for mounting bearing seats are formed in the two sides of the side plates.

The invention has the following beneficial effects: the double-screw extruder is characterized in that the barrel body is formed by hermetically connecting a middle fixed barrel section and moving barrel sections on two sides, and the barrel body can be opened, so that the cleaning of an inner cavity and a screw is facilitated.

Drawings

FIG. 1 is a front view of a twin screw extruder provided by the present invention without a moving drive member.

Fig. 2 is a schematic view of a cross-sectional view of fig. 1A-a with a movable driving member attached.

Fig. 3 is an enlarged view of fig. 2D.

Fig. 4 is a cross-sectional view of fig. 1B-B.

Fig. 5 is a cross-sectional view of fig. 1C-C.

Fig. 6 is an enlarged view of fig. 5E.

In the figure: 1. a base; 2. a barrel; 21. fixing the cylinder section; 22. moving the barrel section; 23. an inner cavity; 24. a feeding mechanism; 3. a screw; 31. a bearing seat; 32. a drive wheel; 4. a side plate; 41. connecting holes; 42. a bearing mounting groove; 5. a drive chain; 6. a motor; 7. a tension wheel; 71. a tensioning seat; 711. a guide pin; 72. a spring; 73. a fixed seat; 731. a connecting pin; 8. a support; 9. a lifting seat; 91. adjusting the bolt; 92. a waist-shaped groove; 93. a nut positioning through groove; 931. a guide groove; 94. a nut; 10. the driving member is moved.

Detailed Description

The following describes a specific embodiment of the present embodiment with reference to the drawings.

As shown in fig. 1 to 6, the twin-screw extruder of the present embodiment includes a base 1 and a cylinder 2, the cylinder 2 is hermetically connected by a middle fixed cylinder section 21 and two moving cylinder sections 22 at two sides, two inner cavities 23 for holding screws 3 are arranged in the cylinder 2, two screws 3 penetrate in the inner cavities 23, one ends of the screws 3 penetrate through the cylinder 2 and are connected with bearing seats 31 movably arranged on a side plate 4 on the base 1, the bearing seats 31 are movably arranged in bearing installation grooves 42 formed at two sides of the side plate 4, one ends of the screws 3 penetrating through the bearing seats 31 are connected with driving wheels 32, the driving wheels 32 of the two screws 3 are connected with a driving end of a motor 6 on the base 1 through a driving chain 5, a tensioning wheel 7 tensioning the tensioning driving chain 5 is further arranged on the side plate 4, the tensioning wheel 7 is connected with a tensioning seat 71, the tensioning seat 71 is connected with a fixed seat 73 through a spring 72, and a guide, the guide pin 711 is inserted into the guide hole of the fixed seat 73, the fixed seat 73 is connected to the side plate 4 through the connecting pin 731, the side plate 4 is matched with the connecting pin 731 to be provided with an upper connecting hole and a lower connecting hole 41, the upper end of the cylinder body 2 is also connected with the feeding mechanism 24, the fixed cylinder section 21 and the movable cylinder section 22 of the cylinder body 2 are movably connected to the base 1 through the bracket 8 to be provided with the lifting seat 9, the lifting seat 9 is provided with a threaded through hole, the adjusting bolt 91 is connected in the threaded through hole, the lower end of the adjusting bolt 91 is connected to the threaded hole formed in the base 1, the height of the lifting seat 9 can be adjusted by rotating the adjusting bolt 91, the upper end of the lifting seat 9 is provided with the waist-shaped groove 92, the lower end of the lifting seat is provided with the nut positioning through groove 93, the two sides of the nut positioning through groove, the bracket 8 and the lifting seat 9 are fixed together by connecting bolts through the bracket 8, the kidney-shaped groove 92 and the nut 94.

The support 8 both sides that remove section of thick bamboo 22 lower extreme connection are located and still connect removal drive component 10 on lifting seat 9, when the installation of barrel 2, the accessible removes drive component 10 and can make the removal section of thick bamboo 22 pressure fastening solid section of thick bamboo 21 of both sides, fix the removal section of thick bamboo 22 of both sides through bolt cooperation nut 94, guarantee to remove and compress tightly sealed between section of thick bamboo 22 and the solid section of thick bamboo 21, when the dismantlement of barrel 2 is opened, only need lift the bolt off, can open the removal section of thick bamboo 22 of both sides through removing drive component 10.

When the twin-screw extruder of this embodiment is installed, the fixed cylinder section 21 in the middle is installed on the corresponding lifting seat 9, then two screws 3 are connected through the bearing seat 31, then the fixed seat 73 is connected to a group of connection holes 41 on the upper side of the side plate 4 through the connection pin 731, the position of the tension wheel 7 is fixed, the drive chain 5 is tensioned through the tension wheel 7, the bearing seats 31 on both sides are driven to move to the innermost side of the bearing installation groove 42, the two screws 3 reach the designated positions, then the left and right positions of the fixed cylinder section 21 are adjusted, the fixed cylinder section 21 and the lifting seat 9 are fixedly connected together through the bolt and the nut 94 after the adjustment, then the height of the lifting seat 9 is adjusted by rotating the adjusting bolt 91, the fixed cylinder section 21 is concentric with the screws 3 on both sides, then the movable cylinder sections 22 on both sides are placed on the corresponding lifting seat 9, and then the height of the lifting seat, the height of the movable cylinder section 22 is consistent with that of the fixed cylinder section 21, the movable cylinder section 22 and the bracket 8 are driven to move by the movable driving part 10, the movable cylinder section 22 is pressed and fixed on the fixed cylinder section 21, the movable cylinder sections 22 on two sides are fixed by the bolt matched with the nut 94, the fixed cylinder section 21 and the movable cylinder sections 22 on two sides can be hermetically connected into the cylinder 2, finally the feeding mechanism 24 is connected to the upper side of the fixed cylinder section 21 of the cylinder 2, the assembly is completed, the cylinder can be used after the assembly is completed, after the use for a period of time, the bolt at the lower end of the movable cylinder section 22 can be detached, the movable cylinder sections 22 on two sides are opened by the movable driving part 10, finally the fixed seat 73 is connected into a group of connecting holes 41 below the side plate 4 by the connecting pin 731, at the moment, the bearing seat 31 and the screw rod 3 can also be opened towards two sides, the cleaning and the, the double-screw extruder can be continuously used only by installing the double-screw extruder again.

The foregoing description is illustrative of the present invention and is not to be construed as limiting thereof, the scope of the invention being defined by the appended claims, which may be modified in any manner without departing from the basic structure thereof.

Claims

1. A twin-screw extruder, characterized in that: including base (1) and barrel (2), barrel (2) are connected into by the removal section of thick bamboo (22) sealing of middle part fixed cylinder section (21) and both sides, set up two inner chamber (23) that are used for placing screw rod (3) in barrel (2), two screw rods (3) are worn in inner chamber (23), and screw rod (3) one end is passed barrel (2) and is connected with bearing frame (31) that the removal set up on curb plate (4) on base (1) on, and screw rod (3) pass the one end of bearing frame (31) and connect drive wheel (32), the drive wheel (32) of two screw rods (3) are connected with the drive end of motor (6) of (1) on the base through driving chain (5), still set up take-up pulley (7) of tensioning driving chain (5) on curb plate (4), feed mechanism (24) are still connected to barrel (2) upper end, the fixed cylinder section (21) and the removal section of barrel (22) of barrel (2) are connected to base (1) through support (8) is mobilizable ) On set up lift seat (9), waist type groove (92) are seted up to lift seat (9) upper end, and the lower extreme sets up nut location logical groove (93), and nut location logical groove (93) both sides set up guide way (931), and complex nut (94) both sides set up the guide block, and nut (94) are worn mobilizable setting in guide way (931) through the guide block and are led to groove (93) in nut location, pass support (8), waist type groove (92) and nut (94) through the bolt and are connected and fix support (8) and lift seat (9) together.

2. The twin-screw extruder according to claim 1, characterized in that: the lifting seat (9) is provided with a threaded through hole, an adjusting bolt (91) is connected in the threaded through hole, and the lower end of the adjusting bolt (91) is connected into the threaded hole formed in the base (1).

3. The twin-screw extruder according to claim 1, characterized in that: tensioning wheel (7) are connected tensioning seat (71), tensioning seat (71) pass through spring (72) and connect fixing base (73), and tensioning seat (71) upper end is located spring (72) inboard and sets up guide pin (711), guide pin (711) are worn in the guiding hole of fixing base (73), fixing base (73) are connected to on curb plate (4) through connecting pin (731), and curb plate (4) cooperation connecting pin (731) set up upper and lower two sets of connecting hole (41).

4. The twin-screw extruder according to claim 1, characterized in that: and two sides of a bracket (8) connected with the lower end of the movable cylinder section (22) are positioned on the lifting seat (9) and are also connected with a movable driving part (10).

5. The twin-screw extruder according to claim 1, characterized in that: bearing mounting grooves (42) for mounting the bearing seats (31) are formed in the two sides of the side plate (4).