CN210525791U

CN210525791U - Feeding device of double-screw extruder

Info

Publication number: CN210525791U
Application number: CN201921179490.0U
Authority: CN
Inventors: 陈东旭; 吴强
Original assignee: Jiangsu Bainte New Material Co Ltd
Current assignee: Jiangsu Bainte New Material Co Ltd
Priority date: 2019-07-24
Filing date: 2019-07-24
Publication date: 2020-05-15
Anticipated expiration: 2029-07-24

Abstract

The utility model discloses a double screw extruder's loading attachment uses at double screw extruder's technical field, and its technical scheme main points are: the extruder comprises a feeding hopper connected with an extruder body, wherein a dust collector is arranged on the extruder body, a dust hood is arranged above the feeding hopper, one end of the feeding hopper, facing the dust hood, is arranged as a feeding end, a first supporting rod for supporting the dust hood is fixedly connected to the outer side wall of the feeding hopper, and the dust hood is communicated with the dust collector through a connecting pipe; has the technical effects that: the floating dust generated during charging is cleaned, and the possibility that the floating dust in a production workshop is more and potential safety hazards are easily caused is reduced.

Description

Feeding device of double-screw extruder

Technical Field

The utility model relates to a double screw extruder's technical field, in particular to double screw extruder's loading attachment.

Background

The hopper of double screw extruder of prior art adopts open funnel structure usually, at the in-process of processing TPV elastomer, the operator can be with the likepowder raw and other materials of TPV elastomer directly from pouring into the hopper, this process can make a large amount of likepowder raw and other materials spill over from open hopper, can produce many dusts, raise dust, cause very big pollution to the environment, make the air quality in the factory building descend, and can cause the waste of raw and other materials, increase manufacturing cost, it is serious still to make the laying dust in the factory building for a long time, or even probably cause the incident. Meanwhile, spilled dust workers can also inhale, and harm is caused to the health of the human body.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a double screw extruder's loading attachment, its advantage: the possibility of generating a large amount of dust and flying dust in the feeding process is reduced.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a double screw extruder's loading attachment, includes the material loading hopper that links to each other with the extruder organism, be equipped with the suction cleaner on the extruder organism, the top of material loading hopper is equipped with the suction hood, the material loading hopper is established to the feed end towards the one end of suction hood, the rigid coupling has the first bracing piece that is used for supporting the suction hood on the lateral wall of material loading hopper, the suction hood is linked together through the connecting pipe with the suction cleaner.

Through the technical scheme, when the likepowder raw and other materials of operator TPV elastomer pour into the feeding hopper, raw and other materials are strikeed the inner wall of feeding hopper and are produced the floating dust and float in the top of feeding hopper this moment, the operator starts the dust catcher this moment, the dust catcher breathes in through connecting pipe and suction hood, make the floating dust that floats in the feeding hopper top inhale by the dust catcher, the possibility that the floating dust floats and easily causes the potential safety hazard in the air has been reduced, the air quality in the workshop of finished products has been guaranteed, be favorable to operator's health.

The utility model discloses further set up to: the opening area of the dust hood is larger than that of the feeding end of the feeding hopper.

Through above-mentioned technical scheme, set up like this, increased the dust absorption area of suction hood, reduced the floating dust that floats to the feed inlet periphery of material loading hopper and be difficult to by the inspiratory possibility of suction hood, guaranteed the clearance effect to floating dust.

The utility model discloses further set up to: the feed end of material loading hopper has the extension board along outer peripheral edges rigid coupling, the extension board sets up along the horizontal direction.

Through above-mentioned technical scheme, the setting of extension board has reduced the operator when adding raw and other materials towards in the feeding hopper, and raw and other materials leak the possibility from the periphery of feeding hopper. Simultaneously, make the operator can support the container of splendid attire raw and other materials on the extension board when adding raw and other materials towards in the feeding hopper, strengthened the effect to container stable support, thereby be convenient for the operator add raw and other materials towards in the feeding hopper.

The utility model discloses further set up to: the one end of dust absorption cover towards the feed end of material loading hopper has the installation piece along the welding of periphery, the inserting groove has been seted up to one side of installation piece towards first bracing piece, first bracing piece is pegged graft in the inserting groove, the dust absorption covers and sets up the mounting hole that supplies the connecting pipe installation, the connecting pipe joint is in the mounting hole.

Through above-mentioned technical scheme, the mode of being connected is dismantled in the adoption between suction hood and connecting pipe and the second bracing piece, and the person of being convenient for to operate group regularly dismantles the suction hood from connecting pipe and second bracing piece and washs the inner wall of suction hood, has guaranteed the cleanliness of suction hood inner wall.

The utility model discloses further set up to: the extruder body is provided with a first motor on the outer side of the feeding hopper, a first bevel gear and a second bevel gear which are meshed with each other are arranged in the feeding hopper, the rotating shaft of the first motor penetrates through the feeding hopper and is coaxially connected with the first bevel gear, the end, away from the feeding end, of the feeding hopper is provided with an electromagnetic valve, a stirring shaft is arranged in the feeding hopper, and the stirring shaft is coaxially connected with the second bevel gear.

Through above-mentioned technical scheme, when the operator pours the likepowder raw and other materials of the TPV elastomer that does not mix into the feeding hopper, then operator's the first motor of start, first motor drives first bevel gear and second bevel gear rotation to drive the (mixing) shaft and rotate and make raw and other materials by the mixing stirring. Set up like this for raw and other materials are stirred the mixture in the feeding hopper, need not the operator and mix the stirring to raw and other materials in advance, have reduced the process of operation, are favorable to improving the efficiency of work.

The utility model discloses further set up to: the outer peripheral edge rigid coupling of (mixing) shaft has a plurality of stirring pieces, and is a plurality of stirring piece top-down is the heliciform and distributes, and is a plurality of the length top-down of stirring piece decreases progressively.

Through above-mentioned technical scheme, the setting of stirring piece is favorable to increasing the area of contact between (mixing) shaft and the raw and other materials, and the length that is located the stirring piece of co-altitude position and the diameter looks adaptation that is located the material loading hopper of co-altitude position have reduced the stirring dead angle of stirring piece simultaneously for the raw and other materials of co-altitude position are stirred evenly in the material loading hopper, have improved raw and other materials and have been mixed the even effect of stirring.

The utility model discloses further set up to: the inner side wall of the feeding hopper is fixedly connected with a rubber block transversely arranged in a round table shape, one side of the round table shape with a large caliber of the rubber block is bonded on the inner side wall of the feeding hopper, and the rubber block is penetrated through by the rotating shaft of the first motor.

Through above-mentioned technical scheme, the setting of block rubber for the inside wall that the axis of rotation of first motor was worn to establish the feeding hopper and the path growth of block rubber, increased the route that raw and other materials in the feeding hopper leaked from the feeding hopper, thereby reduced the possibility that raw and other materials in the feeding hopper leaked from the clearance between axis of rotation and the feeding hopper.

The utility model discloses further set up to: the one side rigid coupling of the axis of rotation of first motor on the extruder organism has the second bracing piece, the one end rigid coupling of the axis of rotation of second bracing piece towards first motor has the sleeve, the outside at the axis of rotation is established to the sleeve cover, the axis of rotation of first motor is laminated with telescopic inner wall mutually.

Through above-mentioned technical scheme, the telescopic setting of second bracing piece has played the effect of support to the axis of rotation of first motor, has also reduced the possibility of vibration from top to bottom when the axis of rotation of first motor rotates simultaneously, has played the effect of damping, has guaranteed the stability when the axis of rotation of first motor and first bevel gear and second bevel gear rotate.

To sum up, the utility model discloses following beneficial effect has:

1. the floating dust generated in the process that an operator adds raw materials into the feeding hopper is cleaned, and the cleanliness of the interior of a production workshop is guaranteed;

2. the stirring of raw materials in the feeding hopper is realized, and the efficiency of producing and processing the TPV elastomer is improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present embodiment.

Fig. 2 is a schematic structural diagram for showing the internal structure of the feeding hopper in the embodiment.

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

Reference numerals: 1. an extruder body; 2. a feeding hopper; 3. a dust collector; 4. a feeding end; 5. a dust hood; 6. a first support bar; 7. a connecting pipe; 8. an extension plate; 9. mounting blocks; 10. inserting grooves; 11. mounting holes; 12. a first motor; 13. a first bevel gear; 14. a second bevel gear; 15. a support frame; 16. a stirring shaft; 17. an electromagnetic valve; 18. a stirring sheet; 19. a rubber block; 20. a second support bar; 21. a sleeve; 22. a second motor; 23. a transmission case; 24. extruding out of the barrel; 25. double screw; 26. and rotating the shaft.

Detailed Description

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

Example (b): a feeding device of a double-screw extruder is disclosed, referring to fig. 1, an extruder body 1 comprises a second motor 22, a transmission case 23 connected with the second motor 22, an extrusion material cylinder 24 and a double screw 25 arranged in the extrusion material cylinder 24, the double screw 25 is driven to work by the second motor 22 and the transmission case 23, and a feeding hopper 2 is arranged on the extrusion material cylinder 24. In operation, an operator pours the raw material of the TPV elastomer into the extrusion barrel 24 through the feeding hopper 2 and the feeding hopper 2, and the second motor 22 and the transmission case 23 drive the twin screw 25 to stir, melt and extrude the raw material of the TPV elastomer.

Referring to fig. 2 and 3, a dust hood 5 is disposed above the feeding hopper 2, a feeding end 4 is disposed at an end of the feeding hopper 2 facing the dust hood 5, and an opening area of the dust hood 5 is larger than an opening area of the feeding end 4 of the feeding hopper 2. The suction hood 5 has the installation piece 9 towards the one end of feed end 4 of feeding hopper 2 along the welding of periphery, has four first bracing pieces 6 along the welding of periphery on the lateral wall of feeding hopper 2, and the inserting groove 10 has been seted up towards one side of first bracing piece 6 to installation piece 9, and first bracing piece 6 is pegged graft in inserting groove 10. The extruder body 1 is provided with a dust collector 3, and the dust collector 3 is communicated with the dust hood 5 through a connecting pipe 7. The dust hood 5 is provided with a mounting hole 11 for mounting the connecting pipe 7, and the connecting pipe 7 is clamped in the mounting hole 11.

Referring to fig. 2 and 3, in the manufacturing process, an operator adds and pours raw materials of a TPV elastomer in a powder form into the feeding hopper 2, and the raw materials of the TPV elastomer collide with the inner wall of the feeding hopper 2 under the action of self gravity and generate a large amount of floating dust floating above and around the feeding end 4 of the feeding hopper 2. At this moment, an operator starts the dust collector 3, the dust collector 3 sucks floating dust floating above the feeding end 4 of the feeding hopper 2 and on the periphery of the feeding end through the connecting pipe 7 and the dust hood 5, the floating dust is cleaned, and the possibility that the floating dust in a production workshop is more and potential safety hazards are easily caused is reduced.

Referring to fig. 2, when the dust hood 5 has a lot of dust adhered to the inner wall of the dust hood 5 for a long time, an operator pulls the connecting pipe 7 out of the mounting hole 11, removes the dust hood 5 from the first supporting rod 6, cleans the dust hood 5, and then re-installs the dust hood 5 together with the first supporting rod 6 and the connecting pipe 7 after cleaning, so that the operation is simple and convenient. Because the feeding end 4 of the feeding hopper 2 is welded with the extension plate 8 along the outer periphery, the extension plate 8 is arranged along the horizontal direction. The provision of the extension plate 8 is advantageous to reduce the possibility of material leakage when the operator adds the raw material of the TPV elastomer into the loading hopper 2.

Referring to fig. 2, a first motor 12 is mounted on the extruder body 1 (fig. 1) at the outer side of the feeding hopper 2, a first bevel gear 13 and a second bevel gear 14 which are engaged with each other are arranged in the feeding hopper 2, and a rotating shaft 26 of the first motor 12 is inserted into the feeding hopper 2 and coaxially connected with the first bevel gear 13. The rubber block 19 in the shape of a circular truncated cone transversely arranged is bonded on the inner side wall of the feeding hopper 2, the side with the large caliber of the rubber block 19 in the shape of a circular truncated cone is bonded on the inner side wall of the feeding hopper 2, and the rotating shaft 26 of the first motor 12 penetrates through the rubber block 19. The provision of the rubber blocks 19 increases the path length of contact between the rotary shaft 26 and the loading hopper 2, and reduces the possibility of leakage of the raw material in the loading hopper 2 from the gap between the rotary shaft 26 and the loading hopper 2.

Referring to fig. 2, a supporting frame 15 for supporting the second bevel gear 14 is welded in the feeding hopper 2, the second bevel gear 14 is rotatably connected to the supporting frame 15, and an electromagnetic valve 17 is arranged at one end of the feeding hopper 2 away from the feeding end 4. A stirring shaft 16 is arranged in the feeding hopper 2, and the stirring shaft 16 is coaxially connected with the second bevel gear 14. The outer periphery of the stirring shaft 16 is fixedly connected with a plurality of stirring blades 18, and the plurality of stirring blades 18 are spirally distributed from top to bottom. When an operator pours powdery raw materials of the un-mixed TPV elastomer into the feeding hopper, the operator starts the first motor 12, the first motor 12 drives the first bevel gear 13 and the second bevel gear 14 to rotate, at the moment, the stirring shaft 16 rotates along with the rotation of the second bevel gear 14, the stirring blades 18 on the stirring shaft 16 rotate to enable the raw materials to be uniformly mixed and stirred, the stirring, mixing and stirring of the raw materials in the feeding hopper 2 are achieved, the operator does not need to mix and stir the raw materials in advance, the operation procedures are reduced, and the work efficiency is improved.

Referring to fig. 2, since the lengths of the stirring blades 18 decrease from top to bottom, the lengths of the stirring blades 18 at different height positions are matched with the diameter of the feeding hopper 2, which decreases from top to bottom, so that the possibility of generating stirring dead angles is reduced, and the uniform effect of the stirring blades 18 on the raw materials is ensured. After the stirring is finished, an operator opens the electromagnetic valve 17 to enable the mixed raw materials to enter the extrusion cylinder 24 to be stirred, melted and extruded by the double screw 25.

Referring to fig. 2, a second support rod 20 is welded on one side of the extruder body 1 facing the rotation shaft 26 of the first motor 12, a sleeve 21 is welded on one end of the second support rod 20 facing the rotation shaft 26 of the first motor 12, the sleeve 21 is sleeved on the outer side of the rotation shaft 26, and the rotation shaft 26 of the first motor 12 is attached to the inner wall of the sleeve 21. The arrangement of the second support rod 20 and the sleeve 21 provides a stable support for the rotating shaft 26 of the first motor 12, and enhances the stability of the rotating shaft 26 in rotation with the first bevel gear 13 and the second bevel gear 14.

The method comprises the following operation steps: during operation, an operator pours the raw material of the powdery TPV elastomer into the feeding hopper 2, and the raw material impacts the inner wall of the feeding hopper 2 to generate a large amount of floating dust. The operator then starts the vacuum cleaner 3 and the vacuum cleaner 3 sucks in the dust cloud via the connecting pipe 7 and the suction hood 5. Meanwhile, the operator starts the first motor 12, and the first motor 12 drives the first bevel gear 13 and the second bevel gear 14 to rotate, and drives the stirring shaft 16 and the stirring blades 18 to stir the raw material. After the raw materials are uniformly stirred, an operator starts the second motor 22, opens the electromagnetic valve 17 at the bottom of the feeding hopper 2, and at the moment, the raw materials enter the extrusion cylinder 24, are stirred and melted by the double screw 25 and are extruded to form the TPV elastomer.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a loading attachment of twin-screw extruder which characterized in that: including material loading hopper (2) that link to each other with extruder organism (1), be equipped with dust catcher (3) on extruder organism (1), the top of material loading hopper (2) is equipped with suction hood (5), material loading hopper (2) are established to feed end (4) towards the one end of suction hood (5), the rigid coupling has first bracing piece (6) that are used for supporting suction hood (5) on the lateral wall of material loading hopper (2), suction hood (5) are linked together through connecting pipe (7) with dust catcher (3).

2. The feeding device of a twin-screw extruder according to claim 1, characterized in that: the opening area of the dust hood (5) is larger than that of the feeding end (4) of the feeding hopper (2).

3. The feeding device of a twin-screw extruder according to claim 1, characterized in that: the feeding end (4) of material loading hopper (2) have extension board (8) along outer peripheral edges rigid coupling, extension board (8) set up along the horizontal direction.

4. The feeding device of a twin-screw extruder according to claim 1, characterized in that: the feeding device is characterized in that an installation block (9) is welded along the periphery of one end, facing the feeding end (4) of the feeding hopper (2), of the dust hood (5), an insertion groove (10) is formed in one side, facing the first supporting rod (6), of the installation block (9), the first supporting rod (6) is inserted into the insertion groove (10), an installation hole (11) for installing the connecting pipe (7) is formed in the dust hood (5), and the connecting pipe (7) is clamped in the installation hole (11).

5. The feeding device of a twin-screw extruder according to claim 1, characterized in that: install first motor (12) in the outside of feeding hopper (2) on extruder organism (1), be equipped with intermeshing's first bevel gear (13) and second bevel gear (14) in feeding hopper (2), the axis of rotation (26) of first motor (12) wear to establish in feeding hopper (2) with first bevel gear (13) coaxial coupling, the one end that feeding end (4) were kept away from in feeding hopper (2) is equipped with solenoid valve (17), be equipped with (mixing) shaft (16) in feeding hopper (2), (mixing) shaft (16) and second bevel gear (14) coaxial coupling.

6. The feeding device of a twin-screw extruder according to claim 5, characterized in that: the outer peripheral edge rigid coupling of (mixing) shaft (16) has a plurality of stirring piece (18), and is a plurality of stirring piece (18) are the heliciform and distribute from top to bottom, and are a plurality of the length top-down degressive of stirring piece (18).

7. The feeding device of a twin-screw extruder according to claim 5, characterized in that: the rubber block (19) of the round platform form that the inside wall fixedly connected with of material loading hopper (2) transversely set up, the round platform form one side that rubber block (19) bore is big bonds on the inside wall of material loading hopper (2), rubber block (19) are worn to establish by axis of rotation (26) of first motor (12).

8. The feeding device of a twin-screw extruder according to claim 5, characterized in that: one side rigid coupling of axis of rotation (26) towards first motor (12) on extruder organism (1) has second bracing piece (20), second bracing piece (20) have sleeve (21) towards the one end rigid coupling of axis of rotation (26) of first motor (12), the outside at axis of rotation (26) is established in sleeve (21), axis of rotation (26) of first motor (12) and the inner wall of sleeve (21) are laminated mutually.