CN212124118U

CN212124118U - Single-screw extruder capable of improving feeding uniformity

Info

Publication number: CN212124118U
Application number: CN202020725680.4U
Authority: CN
Inventors: 曾文静; 冯莉莉; 张海亮
Original assignee: Suzhou Dengding Textile Co ltd
Current assignee: Suzhou Dengding Textile Co ltd
Priority date: 2020-05-06
Filing date: 2020-05-06
Publication date: 2020-12-11
Anticipated expiration: 2030-05-06

Abstract

The utility model relates to a single screw extruder for improving the feeding uniformity, which comprises a feeding seat and a hopper arranged above the feeding seat, wherein a stirring component is arranged in the hopper, the stirring component comprises a supporting plate fixedly connected with the inner wall of the hopper, a stirring piece vertically arranged and rotatably connected with the supporting plate and a first motor for driving the stirring piece to rotate, the first motor is fixedly connected with a supporting plate, a crushing device is arranged above the hopper and can crush material particles, the size of the material particles is reduced, the fluidity of the material is improved, so that the uniformity of the feeding of the hopper is improved, the stirring component is arranged in the hopper and can stir the material in the hopper, the condition of material blockage is avoided, the material can be ensured to smoothly enter the feeding seat, a guide groove is arranged at the lower end of the inner wall of the hopper, and the guide effect on the material can be achieved, so that the process of the material entering the feeding seat is smoother.

Description

Single-screw extruder capable of improving feeding uniformity

Technical Field

The utility model belongs to the technical field of the extruder technique and specifically relates to a promote single screw extruder of feeding homogeneity.

Background

The screw extruder depends on the pressure and the shearing force generated by the rotation of the screw, so that materials can be fully plasticized and uniformly mixed and are molded through a neck mold. Plastic extruders can be largely classified into twin-screw extruders as well as single-screw extruders.

In the prior art, the utility model with publication number CN210026193U specifically discloses a single-screw plastic extruder, which comprises a motor horizontally arranged; the speed reducer is connected with a motor in a transmission way; the feeding seat is horizontally arranged, one end of the feeding seat is fixedly connected with the speed reducer, a feeding channel is arranged on the feeding seat, and a first spiral groove extending axially is formed in the inner side wall of the feeding channel; the hopper is fixedly arranged at the top of the feeding seat and communicated with the feeding channel; the charging barrel is horizontally and fixedly connected with the other end of the feeding seat, a glue melting channel communicated with the feeding channel is arranged in the charging barrel, and at least one second spiral groove communicated with the first spiral groove is formed in the inner side wall of one end, adjacent to the feeding channel, of the glue melting channel; the screw is arranged in the feeding channel and the glue melting channel and is in transmission connection with the speed reducer; the inner side walls of the feeding seat and the machine barrel are both provided with spiral grooves.

Among the above-mentioned scheme, the material granule is getting into the in-process of feed seat by the hopper, can extrude each other between the material granule, and frictional force increase between the material leads to the mobility of material granule relatively poor, and the material takes place to pile up the jam in hopper and feed seat junction relatively easily for the material can't get into the feed seat uniformly, thereby can lead to the ejection of compact of extruder inhomogeneous, influences the processingquality of extruder.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model provides a promote single screw extruder of feeding homogeneity can reduce material particle size, promotes the mobility of material to avoid the material to pile up the phenomenon of jam, improve the homogeneity that the material got into in the feeding seat.

The above object of the present invention is achieved by the following technical solutions:

a single-screw extruder for improving feeding uniformity comprises a feeding seat and a hopper arranged above the feeding seat, wherein a stirring assembly for stirring materials is arranged in the hopper, the stirring assembly comprises a supporting plate fixedly connected with the inner wall of the hopper, a stirring piece vertically arranged and rotatably connected with the supporting plate and a first motor for driving the stirring piece to rotate, and the first motor is fixedly connected with a supporting plate;

and a crushing device is arranged above the hopper.

Through adopting above-mentioned technical scheme, the reducing mechanism of hopper top can smash material granule, thereby reduce material granule's particle size, promote material granule's mobility, the stirring subassembly can stir the material in the hopper, make material granule can flow, prevent to lead to the condition of jam because mutual extrusion between the material granule, through reducing mechanism and stirring subassembly combined action, material granule's mobility obtains promoting, make material granule difficult at hopper lower extreme jam simultaneously, guarantee the homogeneity of feeding, thereby promote the processingquality of extruder.

The present invention may be further configured in a preferred embodiment as: reducing mechanism includes the barrel with hopper upper end fixed connection, set up at the cover of barrel upper end, rotate the transmission shaft of being connected, with transmission shaft lateral wall fixed connection's crushing blade and be used for driving transmission shaft pivoted second motor with the cover, the cover cooperates with the barrel joint, the feed inlet has been seted up on the cover, the second motor set up in the barrel outside and with cover fixed connection.

Through adopting above-mentioned technical scheme, the second motor rotates through driving the pivot, can drive and smash the high-speed rotation of blade to can smash the inside material granule of barrel, reduce the particle size of material granule, thereby promote the mobility of material, the material after smashing enters into the hopper, so that to pay-off in the feed seat, has promoted the homogeneity of pay-off.

The present invention may be further configured in a preferred embodiment as: the crushing blade comprises a coarse crushing cutter set and a fine crushing cutter set, the fine crushing cutter set is arranged at the lower end of the main shaft, and the coarse crushing cutter set is arranged above the fine crushing cutter set.

Through adopting above-mentioned technical scheme, the coarse crushing sword can carry out preliminary crushing to the material, smashes the further crushing of sword again through the essence, can reduce the particle size of material effectively to promote the mobility of material.

The present invention may be further configured in a preferred embodiment as: the coarse crushing cutter set comprises a plurality of first blades which are spirally arranged on the side wall of the main shaft in a surrounding manner;

the fine crushing cutter set comprises a plurality of second blades, and the second blades are circumferentially arranged on the side wall of the main shaft.

Through adopting above-mentioned technical scheme, a plurality of first blade spiral arrange, can divide the material of whereabouts to smash progressively many times, promote kibbling efficiency, a plurality of second blade cylinders distribute, can smash the material simultaneously, promote the meticulous degree of material crushing, guarantee that the material can be smashed by abundant.

The present invention may be further configured in a preferred embodiment as: be provided with first screen cloth between coarse crushing knife tackle and the fine crushing knife tackle, the main shaft is worn to establish on first screen cloth, fine crushing knife tackle below is provided with the second screen cloth, first screen cloth and second screen cloth all with barrel inner wall fixed connection, the mesh number of second screen cloth is less than the mesh number of first screen cloth.

Through adopting above-mentioned technical scheme, first screen cloth can filter the material of not fully smashing to smash once more through first blade, until the material can be through first screen cloth position, the material granule that the second screen cloth can guarantee to fall into in the hopper satisfies the demands, thereby guarantees that the material granule has good mobility, guarantees the homogeneity of feeding.

The present invention may be further configured in a preferred embodiment as: the stirring piece includes the main shaft of being connected and a plurality of and main shaft lower extreme fixed connection's puddler with the backup pad rotation, the upper end and the first motor output fixed connection of main shaft, the puddler passes through connecting rod and main shaft fixed connection, the vertical setting of puddler is a plurality of the puddler is along main shaft axis spiral distribution.

Through adopting above-mentioned technical scheme, first motor drives the main shaft and rotates to drive the puddler and stir the material in the hopper, avoid the material to pile up the condition in the hopper, improve the mobility of material, guarantee that material granule can flow smoothly in the hopper, guarantee the homogeneity of feeding.

The present invention may be further configured in a preferred embodiment as: the lower extreme of main shaft extends to the bottom of barrel, a plurality of branches of fixedly connected with on the main shaft lateral wall, the axis of branch is mutually perpendicular with the axis of main shaft, and is a plurality of branch is spiral setting.

Through adopting above-mentioned technical scheme, main epaxial branch can stir the material that is in hopper and feed seat junction, can improve the material and take place the condition of jam at hopper and feed seat handing-over department at the mobility, guarantees that the material can enter into the feed seat smoothly.

The present invention may be further configured in a preferred embodiment as: the lower end of the inner wall of the hopper is provided with a guide groove, and the guide groove is spirally arranged.

Through adopting above-mentioned technical scheme, the guide way can play the effect of direction to the material for the material can avoid the material to take place to block up along with the smooth entering into feed seat of guide way, promotes the homogeneity of hopper pay-off.

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

1. a crushing device is arranged above the hopper, so that material particles can be crushed, the size of the material particles is reduced, and the flowability of the material is improved, so that the feeding uniformity of the hopper is improved;

2. the stirring assembly is arranged in the hopper, so that materials in the hopper can be stirred, the condition of material blockage is avoided, and the materials can smoothly enter the feeding seat;

3. the lower end of the inner wall of the hopper is provided with the guide groove, so that the material can be guided, and the process of the material entering the feeding seat is smoother.

Drawings

FIG. 1 is a schematic view of the structure of an extruder;

fig. 2 is a schematic view of the internal structure of the hopper and the crushing apparatus.

In the figure, 1, a crushing device; 11. a barrel; 12. a cylinder cover; 121. a feed inlet; 13. a coarse crushing cutter set; 14. a fine crushing cutter set; 15. a drive shaft; 16. a first motor; 17. a first screen; 18. a second screen; 2. a hopper; 21. a support plate; 22. a second motor; 23. a main shaft; 24. a stirring rod; 25. a connecting rod; 26. a strut; 27. a guide groove; 3. a feeding seat.

Detailed Description

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

Referring to the figure 1, for the utility model discloses a promote single screw extruder of feeding homogeneity, including feeding seat 3, set up hopper 2 on feeding seat 3 and set up reducing mechanism 1 in hopper 2 top, reducing mechanism 1, hopper 2 and feeding seat 3 communicate each other, and reducing mechanism 1 can smash the material, reduces the particle size of material, promotes the mobility of material, is provided with the stirring subassembly in the hopper 2, and the stirring subassembly can stir the material in the hopper 2, avoids the material to take place to block up in hopper 2.

Referring to fig. 2, reducing mechanism 1 includes the barrel 11 with 2 upper end fixed connection of hopper, set up cover 12 and crushing unit in barrel 11 top, cover 12 and the cooperation of barrel 11 joint, feed inlet 121 has been seted up on cover 12, through feed inlet 121, inside the entering barrel 11 that the material can be convenient, crushing unit includes the second motor 22 with 12 upper end fixed connection of bung, rotate transmission shaft 15 of being connected and the crushing blade with 15 lateral wall fixed connection of transmission shaft with cover 12, transmission shaft 15 sets up inside barrel 11, and the upper end of transmission shaft 15 and the output fixed connection of second motor 22, second motor 22 can drive the high-speed rotation of transmission shaft 15, crushing blade can smash the material, make the particle size of material reduce.

Referring to fig. 2, the crushing blade includes a fine crushing blade group 14 disposed at the lower end of the transmission shaft 15 and a coarse crushing blade group 13 disposed above the fine crushing blade group 14, the coarse crushing blade group 13 includes six first blades, the first blades are spirally disposed on the transmission shaft 15, the six first blades can crush the material in sequence, a first screen 17 is disposed between the fine crushing blade group 14 and the coarse crushing blade group 13, the first screen 17 can preliminarily screen the material, and it is ensured that the first blades can sufficiently crush the material.

Referring to fig. 2, the fine crushing cutter set 14 includes four second blades, the second blades are circumferentially disposed on the side wall of the transmission shaft 15, the four first blades can improve the fineness of crushing the material, a second screen 18 is disposed below the fine crushing cutter set 14, and the second screen 18 can screen the material, so that the fine crushing cutter set 14 can sufficiently crush the material, thereby improving the flowability of the material particles.

Referring to fig. 2, the stirring assembly includes the backup pad 21 with 2 inner wall fixed connection of hopper, second motor 22 with backup pad 21 fixed connection, main shaft 23 and three puddler 24 with 23 lateral wall fixed connection of main shaft that rotate to be connected with backup pad 21, the upper end and the second motor 22 output end fixed connection of main shaft 23, second motor 22 can drive main shaft 23 and rotate, three puddler 24 spiral setting is on 23 lateral walls of main shaft, puddler 24 can stir the material in the hopper 2, avoid the material to take place the overstock in hopper 2 and block up.

Referring to fig. 2, the lower end of the main shaft 23 extends to the lower end of the hopper 2, the lower end of the side wall of the main shaft 23 is fixedly connected with three support rods 26, the three support rods 26 are spirally arranged, the axis of each support rod 26 is perpendicular to the axis of the main shaft 23, and when the main shaft 23 rotates, the support rods 26 can stir materials at the joint of the hopper 2 and the feeding seat 3, so that the materials can smoothly enter the feeding seat 3 from the hopper 2, and the material accumulation and blockage are avoided.

Referring to fig. 2, the guide groove 27 has been seted up to hopper 2 inner wall lower extreme, and guide groove 27 spiral setting is on hopper 2 inner wall, and when the material followed branch 26 screw decline in hopper 2, guide groove 27 can guide the material, promotes the homogeneity and the stability of feeding.

The implementation principle of the embodiment is as follows: put into barrel 11 through feed inlet 121 with the material in, start first motor 16, first motor 16 drives transmission shaft 15 and rotates at a high speed, and coarse crushing knife tackle 13 and fine crushing knife tackle 14 can smash the material, reduce the particle size of material, and the material enters into in the hopper 2 through first screen cloth 17 and second screen cloth 18.

The second motor 22 is started, the second motor 22 drives the main shaft 23 to rotate, the stirring rod 24 is further driven to stir the materials, the support rod 26 at the lower end of the main shaft 23 can stir the materials at the lower end of the hopper 2, and the materials are prevented from being blocked between the hopper 2 and the feeding seat 3.

After the material enters the feeding seat 3, the extruder can process the material.

The embodiments of the present invention are the preferred embodiments of the present invention, and the protection scope of the present invention is not limited by this, 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 promote single screw extruder of feeding homogeneity, includes feed seat (3) and sets up hopper (2) in feed seat (3) top, its characterized in that: a stirring assembly for stirring materials is arranged in the hopper (2), the stirring assembly comprises a supporting plate (21) fixedly connected with the inner wall of the hopper (2), a stirring piece vertically arranged and rotatably connected with the supporting plate (21), and a first motor (16) for driving the stirring piece to rotate, and the first motor (16) is fixedly connected with the supporting plate;

and a crushing device (1) is arranged above the hopper (2).

2. The single screw extruder of claim 1, wherein: reducing mechanism (1) include with hopper (2) upper end fixed connection's barrel (11), set up barrel cover (12) in barrel (11) upper end, rotate transmission shaft (15) of being connected with barrel cover (12), with transmission shaft (15) lateral wall fixed connection's crushing blade and be used for driving transmission shaft (15) pivoted second motor (22), barrel cover (12) and barrel (11) joint cooperation, feed inlet (121) have been seted up on barrel cover (12), second motor (22) set up in the barrel (11) outside and with barrel cover (12) fixed connection.

3. The single screw extruder of claim 2, wherein: the crushing blade comprises a coarse crushing cutter set (13) and a fine crushing cutter set (14), the fine crushing cutter set (14) is arranged at the lower end of the main shaft (23), and the coarse crushing cutter set (13) is arranged above the fine crushing cutter set (14).

4. A single screw extruder with improved feed uniformity according to claim 3, wherein: the coarse crushing cutter set (13) comprises a plurality of first blades which are spirally arranged on the side wall of the main shaft (23) in a surrounding manner;

the fine crushing cutter set (14) comprises a plurality of second blades, and the second blades are circumferentially arranged on the side wall of the main shaft (23).

5. A single screw extruder with improved feed uniformity according to claim 3, wherein: be provided with first screen cloth (17) between coarse crushing knife tackle (13) and fine crushing knife tackle (14), main shaft (23) are worn to establish on first screen cloth (17), fine crushing knife tackle (14) below is provided with second screen cloth (18), first screen cloth (17) and second screen cloth (18) all with barrel (11) inner wall fixed connection, the mesh number of second screen cloth (18) is less than the mesh number of first screen cloth (17).

6. The single screw extruder of claim 1, wherein: the stirring piece includes main shaft (23) and a plurality of puddler (24) with main shaft (23) lower extreme fixed connection of being connected with backup pad (21) rotation, the upper end and the output end fixed connection of first motor (16) of main shaft (23), puddler (24) are through connecting rod (25) and main shaft (23) fixed connection, puddler (24) vertical setting is a plurality of puddler (24) are along main shaft (23) axis spiral distribution.

7. The single screw extruder of claim 6, wherein: the lower extreme of main shaft (23) extends to the bottom of barrel (11), a plurality of branch (26) of fixedly connected with on main shaft (23) lateral wall, the axis of branch (26) is mutually perpendicular with the axis of main shaft (23), and is a plurality of branch (26) are spiral setting.

8. The single screw extruder of claim 7, wherein: guide slot (27) have been seted up to hopper (2) inner wall lower extreme, guide slot (27) spiral setting.