CN215359779U - Feeding device for double-screw extruder - Google Patents

Abstract

The feeding device comprises a feeding hopper, wherein a feeding hole and a discharging hole are formed in the feeding hopper, a discharging sleeve is arranged at the position, located at the discharging hole, of the feeding hopper, and a scraping assembly is arranged at the position, located at the connecting position of the feeding hopper and the discharging sleeve, of the feeding hopper; scrape the material subassembly and include the fixed bolster, scrape material pole and driving piece, the fixed bolster is located discharge gate department, scrape the material pole and rotate and set up on the fixed bolster, just scrape material pole and ejection of compact sleeve pipe inside wall sliding conflict, the driving piece is located the fixed bolster, just the material pole rotation is scraped in the driving piece drive. This application has the effect that improves feed arrangement security when scraping the material operation.

Description

Feeding device for double-screw extruder

Technical Field

The application relates to the technical field of plastic particle production, in particular to a feeding device for a double-screw extruder.

Background

The screw extruder is an important machine for plastic molding and processing, mainly comprises a pressurizer main body, a motor, a transmission mechanism and a screw extrusion device, wherein a feeding device of the screw extruder is an important part at the material conveying end of the screw extruder and is used for conveying synthetic materials.

The utility model discloses a chinese utility model patent that grant publication number is CN212826725U discloses a screw extruder's feed arrangement, set up junction pipe in screw extruder and inlet pipe department, but inlet pipe mobile cup joints in the junction pipe periphery, provides certain rotatory shearing force to the material in the inlet pipe, and the junction pipe acts as the effect of scraper simultaneously, makes the material that bonds on the inlet pipe inner wall break away from fast, and falls into and carry out follow-up processing in the screw extruder to take place the problem of jam when effectively having solved the feeding.

With respect to the related art among the above, the inventors consider that the following drawbacks occur: when feed arrangement carries out the feeding operation to the material, the motor drives the meshing gear in the outside and rotates, because people need often walk about when actual production, exposes motor gear drive structure outside, causes the threat to operating personnel's safety.

SUMMERY OF THE UTILITY MODEL

In order to improve feed arrangement and scrape the security when the material operation, this application provides a feed arrangement for twin-screw extruder.

The application provides a feed arrangement for twin-screw extruder adopts following technical scheme:

a feeding device for a double-screw extruder comprises a feeding hopper, wherein a feeding hole and a discharging hole are formed in the feeding hopper, a discharging sleeve is arranged at the discharging hole of the feeding hopper, and a scraping assembly is arranged at the joint of the feeding hopper and the discharging sleeve; scrape the material subassembly and include the fixed bolster, scrape material pole and driving piece, the fixed bolster is located discharge gate department, scrape the material pole and rotate and set up on the fixed bolster, just scrape material pole and ejection of compact sleeve pipe inside wall sliding conflict, the driving piece is located the fixed bolster, just the material pole rotation is scraped in the driving piece drive.

By adopting the technical scheme, when the raw materials are fed, the feed hopper is arranged on the double-screw extruder, the discharge sleeve is connected with the feeding part of the double-screw extruder, and then the materials enter from the feed inlet of the feed hopper and enter the double-screw extruder through the discharge sleeve to be blended and extruded; when the feeding hopper performs feeding operation, the scraping assembly scrapes off materials adhered to the inner side wall of the discharging sleeve, so that blockage and waste caused by the adhesion of the materials in the discharging sleeve are reduced, and the scraping assembly is positioned in the feeding hopper and is isolated from the operation space of an operator, so that the safety is improved; when scraping the material operation of expecting the subassembly, the fixed bolster plays the fixed bolster effect, and the driving piece drive is scraped material pole and is slided with ejection of compact sleeve pipe inside wall and contradict, and then scrapes the material of adhesion on ejection of compact sleeve pipe and leave.

Optionally, the fixing bracket includes a first supporting rod and a second supporting rod, the first supporting rod and the second supporting rod are crossed with each other along a midpoint thereof, and the scraping rod is rotatably disposed at a connection position of the first supporting rod and the second supporting rod.

Optionally, the cross-sections of the first supporting rod and the second supporting rod along the feeding direction of the feeding hopper are triangular.

Optionally, a protective shell is arranged on the driving member.

Optionally, the feed hopper outside parcel is provided with and falls the pad of making an uproar.

Optionally, the driving member is a servo motor.

In summary, the present application at least includes the following beneficial technical effects:

1. the feeding hopper is provided with a feeding hole and a discharging hole, the discharging sleeve is arranged at the discharging hole, and the scraping component is arranged at the joint of the feeding hopper and the discharging sleeve; the scraping component comprises a fixed support, a scraping rod and a driving piece, the fixed support is positioned at the discharge port, the scraping rod is rotatably arranged on the fixed support and is in sliding contact with the inner side wall of the discharge sleeve, the driving piece is positioned on the fixed support, and the driving piece drives the scraping rod to rotate; when the raw materials are fed, the feed hopper is arranged on the double-screw extruder, the discharge sleeve is connected with the feeding part of the double-screw extruder, and then the materials enter from the feed inlet of the feed hopper and enter the double-screw extruder through the discharge sleeve to be blended and extruded; when the feeding hopper performs feeding operation, the scraping assembly scrapes off materials adhered to the inner side wall of the discharging sleeve, so that blockage and waste caused by the adhesion of the materials in the discharging sleeve are reduced, and the scraping assembly is positioned in the feeding hopper and is isolated from the operation space of an operator, so that the safety is improved; when scraping the material operation of expecting the subassembly, the fixed bolster plays the fixed bolster effect, and the driving piece drive is scraped material pole and is slided with ejection of compact sleeve pipe inside wall and contradict, and then scrapes the material of adhesion on ejection of compact sleeve pipe and leave.

Drawings

FIG. 1 is a sectional view of a feeding device for a twin-screw extruder in an example of the present application.

FIG. 2 is a front view of a scraper assembly in a feeding device for a twin screw extruder in an embodiment of the present application.

Description of reference numerals: 1. a feed hopper; 2. a feed inlet; 3. a discharge port; 4. a discharging sleeve; 5. a noise reduction pad; 6. a scraping component; 61. fixing a bracket; 611. a first support bar; 612. a second support bar; 62. a scraping rod; 63. a drive member; 7. a protective shell.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses a feeding device for a double-screw extruder.

Referring to fig. 1 and 2, a feed arrangement for double screw extruder, including feeder hopper 1, feed inlet 2 and discharge gate 3 have been seted up respectively at the both ends of its axis direction to feeder hopper 1, and the axis direction and the direction of gravity of feeder hopper 1 are parallel to each other, and feeder hopper 1 is located discharge gate 3 department fixed welding and is provided with discharging sleeve 4, and the axis that is cylindric discharging sleeve 4 coincides each other with the axis of feeder hopper 1. When in use, the discharge sleeve 4 is connected with the feed inlet 2 of the double-screw extruder. Feeder hopper 1's outside parcel is provided with and falls the pad 5 of making an uproar, and in this application embodiment, fall the pad 5 of making an uproar for the rubber pad, and the rubber pad uses the fixed bonding of hot melt adhesive at the lateral wall of feeder hopper 1.

Referring to fig. 1 and 2, feeder hopper 1 is located self and is provided with ejection of compact sleeve 4 junction and scrapes material subassembly 6, scrape material subassembly 6 and include fixed bolster 61, scrape material pole 62 and driving piece 63, fixed bolster 61 is fixed to be set up at feeder hopper 1 and ejection of compact sleeve 4's junction, it rotates the center that sets up at fixed bolster 61 to scrape material pole 62 that is L shape, and scrape a side of material pole 62 and ejection of compact sleeve 4's inside wall slip conflict, driving piece 63 is located one side of fixed bolster 61 keeping away from relatively scraping material pole 62, the outside parcel of driving piece 63 is provided with protective housing 7, in the embodiment of the present application, driving piece 63 is servo motor.

Referring to fig. 1 and 2, the fixing bracket 61 includes a first supporting rod 611 and a second supporting rod 612 which are identical, the first supporting rod 611 and the second supporting rod 612 are perpendicularly crossed along the center of the length direction thereof, that is, the fixing bracket 61 is in a cross shape as a whole, the scraping rod 62 is rotatably disposed at the joint of the first supporting rod 611 and the second supporting rod 612, and the cross sections of the first supporting rod 611 and the second supporting rod 612 along the direction from the feeding hopper 1 to the discharging sleeve 4 are in a regular triangle shape, so that when materials fall on the first supporting rod 611 and the second supporting rod 612, the materials can conveniently slide down.

The implementation principle of the feeding device for the double-screw extruder in the embodiment of the application is as follows: when the raw materials are fed, the feed hopper 1 is arranged on a double-screw extruder, the discharge sleeve 4 is connected with the feeding part of the double-screw extruder, and then the materials enter from the feed inlet 2 of the feed hopper 1 and enter the double-screw extruder through the discharge sleeve 4 to be blended and extruded; when the feeding hopper 1 is used for feeding, the scraping component 6 scrapes off materials adhered to the inner side wall of the discharging sleeve 4, so that blockage and waste caused by the materials adhered to the discharging sleeve 4 are reduced, and the scraping component 6 is positioned in the feeding hopper 1 and is isolated from the operation space of an operator, so that the safety is improved; when scraping material subassembly 6 and scraping the material operation, fixed bolster 61 plays the fixed stay effect, and driving piece 63 drive is scraped material pole 62 and is contradicted with the sliding of discharging sleeve 4 inside wall, and then scrapes the material of adhesion on discharging sleeve 4 and leaves.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (6)

1. The utility model provides a feed arrangement for twin-screw extruder which characterized in that: the feeding device comprises a feeding hopper (1), wherein a feeding hole (2) and a discharging hole (3) are formed in the feeding hopper (1), a discharging sleeve (4) is arranged at the discharging hole (3) of the feeding hopper (1), and a scraping component (6) is arranged at the joint of the feeding hopper (1) and the discharging sleeve (4); scrape material subassembly (6) including fixed bolster (61), scrape material pole (62) and driving piece (63), fixed bolster (61) are located discharge gate (3) department, scrape material pole (62) and rotate and set up on fixed bolster (61), just scrape material pole (62) and ejection of compact sleeve pipe (4) inside wall and slide and contradict, driving piece (63) are located fixed bolster (61), just material pole (62) are scraped in driving piece (63) drive and rotate.

2. The feeding device for the twin-screw extruder according to claim 1, wherein: the fixed bracket (61) comprises a first supporting rod (611) and a second supporting rod (612), the first supporting rod (611) and the second supporting rod (612) are crossed with each other along the middle point of the first supporting rod, and the scraping rod (62) is rotatably arranged at the connecting position of the first supporting rod (611) and the second supporting rod (612).

3. The feeding device for the twin-screw extruder according to claim 2, wherein: the cross sections of the first supporting rod (611) and the second supporting rod (612) along the feeding direction of the feeding hopper (1) are triangular.

4. The feeding device for the twin-screw extruder according to claim 1, wherein: a protective shell (7) is arranged on the driving piece (63).

5. The feeding device for the twin-screw extruder according to claim 1, wherein: the outside of the feed hopper (1) is wrapped with a noise reduction pad (5).

6. The feeding device for the twin-screw extruder according to claim 1, wherein: the driving piece (63) is a servo motor.

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