CN111791455A

CN111791455A - Energy-concerving and environment-protective efficient double screw extruder

Info

Publication number: CN111791455A
Application number: CN202010750191.9A
Authority: CN
Inventors: 郑清飞
Original assignee: Beijing Chunyi Donglai Advertising Co ltd
Current assignee: Beijing Chunyi Donglai Advertising Co ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2020-10-20

Abstract

The invention discloses an energy-saving, environment-friendly and efficient double-screw extruder which structurally comprises an extruder, a charging barrel, a motor and a charging hopper, wherein the charging barrel is fixedly embedded on the upper surface of the extruder, the bottom of the motor is welded at the top of the extruder and is connected with the charging barrel, and the bottom of the charging hopper is fixedly embedded on the upper surface of the charging barrel, and the energy-saving, environment-friendly and efficient double-screw extruder has the beneficial effects that: add the feed cylinder with the plastics material in through the loading hopper, make the material strike the guide block downwards and make the guide pulley rotate around the gim peg, it can release the material in the pendulum piece to have elastic limiting plate when the pendulum piece changes to low, make the even two screw rods that fall in the feed cylinder of material heat the melting and become the viscous state, and move left under the rotation of screw rod and extrude the feed cylinder, scrape the piece and can hug closely the screw rod surface at the elasticity of buffer block and reciprocate, make the scraper blade scrape the viscous state material of adhesion on the screw rod surface, and brush the screw rod through the brush and wipe off, avoid the material to remain and solidify on the screw rod surface and lead to blockking up the feed cylinder.

Description

Energy-concerving and environment-protective efficient double screw extruder

Technical Field

The invention relates to the field of environmental protection, in particular to an energy-saving, environment-friendly and efficient double-screw extruder.

Background

The double-screw extruder is used as one of the extruders, plastic materials enter the extruder from a feeding hopper and are conveyed forwards under the driving of the rotation of a screw, the materials are melted into viscous liquid under the heating of a charging barrel at the moment, and finally the materials move forwards under the rotation of the screw, so that the melted materials are discharged from an extrusion port.

At present, because materials are melted into a viscous state under the heating of a charging barrel, the finally melted materials are partially remained on the twin-screw during the extrusion process, so that the remained materials can be solidified on the twin-screw after the extruder stops working, and the charging barrel is required to be opened regularly for cleaning.

Disclosure of Invention

Aiming at the defects that the material is melted into viscous state under the heating of the charging barrel and the finally melted material is partially remained on the double screw during the extrusion process, so that the remained material is solidified on the double screw after the extruder stops working, and the charging barrel needs to be opened periodically for cleaning, the invention provides an energy-saving, environment-friendly and efficient double screw extruder to solve the technical problems.

The invention is realized by the following technical scheme: the utility model provides an energy-concerving and environment-protective efficient double screw extruder, its structure includes extruder, feed cylinder, motor, loading hopper, the feed cylinder inlays admittedly in the extruder upper surface, the welding of motor bottom is at the extruder top and is connected with the feed cylinder, the loading hopper bottom inlays admittedly in the feed cylinder upper surface, the feed cylinder includes screw rod, locating piece, guide block, clearance board, the screw rod passes through gap junction in feed cylinder right side inner wall, the locating piece nests in screw rod right-hand member periphery and welds at feed cylinder right side inner wall, inner wall on the feed cylinder is located at the guide block top, the welding of clearance board top is at the inner wall on the feed cylinder, the screw rod all has two with the guide block, and feed cylinder left side top downward.

Furthermore, the guide block comprises a positioning bolt, a guide wheel, a limiting block and a swinging block, the positioning bolt penetrates through the bottom of the guide block, the guide wheel and the positioning bolt are located on the same axis, one end of the limiting block is embedded in the outer surface of the positioning bolt, the swinging block is welded with the other end of the limiting block, the limiting block is made of rubber and has elasticity, and eight swinging blocks are distributed annularly.

Furthermore, the pendulum piece is including receiving piece, limiting plate, lug, the piece of receiving inlays and locates the pendulum piece upper surface, the limiting plate welding is at receiving piece right wall, the lug passes through bolted connection in receiving the piece bottom, receiving the piece bottom is the arc, and the lug is the cylinder to the limiting plate side is the hypotenuse.

Further say, the limiting plate includes the pivot, draws piece, fixed block, bolted connection is passed through in the limiting plate right-hand member in the pivot, draw the piece to inlay admittedly between limiting plate right side wall and pendulum piece, the fixed block welding is at drawing the piece both ends, it is the arc downwarping to draw the piece, and the limiting plate can revolute the rotation of axes.

Furthermore, the cleaning plate comprises a buffer block, a scraping block, a fixed column and a brush, wherein the top of the buffer block is fixedly embedded inside the cleaning plate, the top of the scraping block is connected to the lower inner wall of the cleaning plate through a movable clamp and is welded with the bottom of the buffer block, the fixed column is fixedly embedded inside the cleaning plate, the upper surface of the brush is welded at the bottom of the fixed column, the buffer block is made of rubber, and the bottom of the scraping block is arc-shaped and has the same width as a screw groove in the screw rod.

Furthermore, the scraping block comprises a positioning rod, a positioning plate and a scraping plate, the top of the positioning rod is fixedly embedded inside the scraping block, the positioning plate is welded at the tail end of the positioning rod, the top of the scraping plate is welded on the lower surface of the positioning plate, the positioning plate is arc-shaped, and the scraping plate is made of rubber.

Furthermore, the scraper blade includes gag lever post, connecting rod, extension spring, the gag lever post welding is on the scraper blade surface, the connecting rod inlays admittedly in the gag lever post inside, the welding of extension spring both ends is on the scraper blade right side surface, the scraper blade has three, and the pulling force of extension spring makes scraper blade bottom crooked right side.

Advantageous effects

Compared with the prior art, the energy-saving, environment-friendly and efficient double-screw extruder disclosed by the invention has the following advantages:

1. the invention has the beneficial effects that: in adding the feed cylinder with the plastics material through the loading hopper for the material impacts the guide block downwards and makes the guide pulley rotate around the gim peg, has elastic limiting plate and can release the material in the pendulum piece when the pendulum piece changes to the low point, makes the even two screw rods that fall in the feed cylinder of material heat and melt into the viscous state, and moves extrusion feed cylinder left under the rotation of screw rod.

2. The invention has the beneficial effects that: the elastic scraping block of the buffer block can be attached to the surface of the screw rod to move up and down, so that the scraping plate scrapes the viscous liquid material adhered to the surface of the screw rod, the screw rod is brushed through the brush, and the material is prevented from being remained on the surface of the screw rod and being solidified to block the charging barrel.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic structural diagram of an energy-saving, environment-friendly and efficient twin-screw extruder disclosed by the invention.

Fig. 2 is an enlarged internal view of the cartridge of the present invention.

Fig. 3 is a schematic cross-sectional enlarged structure of the guide block of the present invention.

Fig. 4 is a schematic cross-sectional enlarged structure view of the pendulum mass of the present invention.

Fig. 5 is a schematic diagram of a cross-sectional enlarged structure of the limiting plate of the invention.

FIG. 6 is an enlarged cross-sectional view of the cleaning plate according to the present invention.

Fig. 7 is a schematic cross-sectional enlarged structure view of the scraping block of the present invention.

FIG. 8 is an enlarged side view of the squeegee of the present invention.

In the figure: the device comprises an extruder 1, a charging barrel 2, a motor 3, a charging hopper 4, a screw 21, a positioning block 22, a guide block 23, a cleaning plate 24, a positioning bolt 231, a guide wheel 232, a limiting block 233, a swinging block 234, a receiving block a1, a limiting plate a2, a bump a3, a rotating shaft a21, a pulling block a22, a fixing block a23, a buffering block 241, a scraping block 242, a fixing column 243, a brush 245, a positioning rod b1, a positioning plate b2, a scraping plate b3, a limiting rod b31, a connecting rod b32 and a tension spring b 33.

Detailed Description

In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easy to understand, the following description and the accompanying drawings further illustrate the preferred embodiments of the invention.

Please refer to fig. 1-8:

example 1:

the invention provides an energy-saving, environment-friendly and efficient double-screw extruder which structurally comprises an extruder 1, a charging barrel 2, a motor 3 and a charging hopper 4, the charging barrel 2 is embedded and fixed on the upper surface of the extruder 1, the bottom of the motor 3 is welded on the top of the extruder 1 and is connected with the charging barrel 2, the bottom of the charging hopper 4 is embedded and fixed on the upper surface of the charging barrel 2, the charging barrel 2 comprises a screw 21, a positioning block 22, a guide block 23 and a cleaning plate 24, the screw rod 21 is connected with the right inner wall of the charging barrel 2 through a gap, the positioning block 22 is nested at the periphery of the right end of the screw rod 21 and welded on the right inner wall of the charging barrel 2, the top of the guide block 23 is arranged on the upper inner wall of the charging barrel 2, the top of the cleaning plate 24 is welded on the upper inner wall of the charging barrel 2, two screw rods 21 and two guide blocks 23 are arranged, and the top of the left side of the charging barrel 2 is inclined downwards, which is beneficial to enabling the two screw rods 21 to push the melted materials leftwards through the motor 3.

In the figure, the guide block 23 includes positioning bolt 231, guide wheel 232, stopper 233, pendulum piece 234, positioning bolt 231 runs through the bottom of guide block 23, guide wheel 232 and positioning bolt 231 are located same axis, stopper 233 one end inlays admittedly in positioning bolt 231 surface, pendulum piece 234 welds with stopper 233 the other end, stopper 233 has elasticity for the rubber material, and pendulum piece 234 has eight to be the annular and distributes, does benefit to when the material enters into feed cylinder 2 from loading hopper 4 through pendulum piece 234 and makes its even falling on screw rod 21, is convenient for heat the melting material.

In the figure, the swing block 234 comprises a receiving block a1, a limiting plate a2 and a bump a3, the receiving block a1 is embedded on the upper surface of the swing block 234, the limiting plate a2 is welded on the right wall of the receiving block a1, the bump a3 is connected to the bottom of the receiving block a1 through a bolt, the bottom of the receiving block a1 is arc-shaped, the bump a3 is cylindrical, and the side edge of the limiting plate a2 is a bevel edge, so that the receiving block a1 can be used for temporarily storing materials, and the guide wheel 232 can rotate under the downward impact force of the materials.

In the drawing, the limiting plate a2 includes a rotating shaft a21, a pulling block a22 and a fixing block a23, the rotating shaft a21 is connected to the right end of the limiting plate a2 through a bolt, the pulling block a22 is embedded between the right wall of the limiting plate a2 and the swinging block 234, the fixing block a23 is welded at the two ends of the pulling block a22, the pulling block a22 is bent downwards in an arc shape, the limiting plate a2 can rotate around the rotating shaft a21, the position of the limiting plate a2 is supported through the pulling block a22 and the fixing block a23, and the limiting plate a2 is made to have elasticity.

The specific principle of the embodiment is as follows: the starting motor 3 drives the screw rods 21 in the material barrel 2 to rotate, plastic materials are added into the material barrel 2 through the feeding hopper 4, at the moment, the materials impact the inner sides of the two guide blocks 23 downwards, part of the materials are attached to the swing blocks 234 around the guide wheels 232 at the bottoms of the guide blocks 23, the guide wheels 232 rotate around the positioning bolts 231 under the downward impact force of the materials, meanwhile, the limiting plates a2 on the inner sides of the swing blocks 234 have elasticity under the support of the pull blocks a22 and the fixing blocks a23, so that the limiting plates a2 can push out the materials in the swing blocks 234 when the swing blocks 234 rotate to the low position, the materials uniformly fall on the two screw rods 21 in the material barrel 2, then the materials are melted into viscous liquid under the heating inside the material barrel 2, and the materials move leftwards and are extruded out of the material barrel 2 under the rotation of the screw rods.

Example 2:

In the drawing, the cleaning plate 24 includes a buffer block 241, a scraping block 242, a fixing column 243 and a brush 245, the top of the buffer block 241 is fixedly embedded in the cleaning plate 24, the top of the scraping block 242 is connected to the lower inner wall of the cleaning plate 24 through a movable clamp and is welded to the bottom of the buffer block 241, the fixing column 243 is fixedly embedded in the cleaning plate 24, the upper surface of the brush 245 is welded to the bottom of the fixing column 243, the buffer block 241 is made of rubber and has elasticity, the bottom of the scraping block 242 is arc-shaped, meanwhile, the width of the bottom of the scraping block 242 is equal to that of a screw groove in the screw 21, the scraping block 242 can scrape materials remained on the screw 21, and the materials can be prevented from being solidified to block the charging barrel 2 under the.

In the figure, scrape piece 242 including locating lever b1, locating plate b2, scraper blade b3, locating lever b1 top is inlayed admittedly in scraping piece 242 inside, locating plate b2 welds at locating lever b1 end, scraper blade b3 top welding is at locating plate b2 lower surface, locating plate b2 is the arc, and scraper blade b3 is the rubber material, does benefit to and makes scraper blade b3 bottom hug closely the screw rod 21 surface.

In the drawing, the scraper b3 includes gag lever post b31, connecting rod b32, extension spring b33, gag lever post b31 welds on scraper b3 surface, connecting rod b32 inlays in gag lever post b31 inside, extension spring b33 both ends weld in scraper b3 right side surface, there are three scraper b3, and the pulling force of extension spring b33 makes scraper b3 bottom bend right, is favorable to making scraper b3 scrape the material that adheres in the screw 21 surface.

The specific principle of the embodiment is as follows: because the cleaning plate 24 is located right above the screw 21, the scraping block 242 can move up and down along the surface of the screw 21 when the motor 3 drives the screw 21 to rotate under the elastic action of the buffer block 241, so that three rows of scraping plates b3 at the bottom of the scraping block 242 continuously rub against the surface of the screw 21, thereby scraping viscous materials adhered to the surface of the screw 21, and fixing the shape of the scraping plate b3 through the connecting rod b32 and the tension spring b33, so as to avoid the deformation and fracture of the scraping plate b3 during the surface rubbing against the screw 21, prevent the viscous materials scraped by the scraping plate b3 from flowing under the brushing of the brushes 245 at the two sides of the scraping block 242, and avoid the material remaining on the surface of the screw 21 from solidifying to block the charging barrel.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

Claims

1. The utility model provides an energy-concerving and environment-protective efficient double screw extruder, its structure includes extruder (1), feed cylinder (2), motor (3), loading hopper (4), feed cylinder (2) are inlayed in extruder (1) upper surface, the welding of motor (3) bottom is just connected with feed cylinder (2) at extruder (1) top, loading hopper (4) bottom is inlayed admittedly in feed cylinder (2) upper surface, its characterized in that:

feed cylinder (2) include screw rod (21), locating piece (22), guide block (23), clearance board (24), screw rod (21) are through clearance connection in feed cylinder (2) right side inner wall, locating piece (22) nestification in screw rod (21) right-hand member periphery and welding at feed cylinder (2) right side inner wall, inner wall on feed cylinder (2) is located at guide block (23) top, inner wall on feed cylinder (2) is welded at clearance board (24) top.

2. The energy-saving environment-friendly efficient double-screw extruder as claimed in claim 1, wherein: the guide block (23) comprises a positioning bolt (231), a guide wheel (232), a limiting block (233) and a swinging block (234), the positioning bolt (231) penetrates through the bottom of the guide block (23), the guide wheel (232) and the positioning bolt (231) are located on the same axis, one end of the limiting block (233) is fixedly embedded in the outer surface of the positioning bolt (231), and the swinging block (234) is welded with the other end of the limiting block (233).

3. The energy-saving environment-friendly high-efficiency twin-screw extruder as claimed in claim 2, wherein: the pendulum block (234) comprises a receiving block (a1), a limiting plate (a2) and a bump (a3), wherein the receiving block (a1) is embedded on the upper surface of the pendulum block (234), the limiting plate (a2) is welded on the right wall of the receiving block (a1), and the bump (a3) is connected to the bottom of the receiving block (a1) through a bolt.

4. The energy-saving environment-friendly high-efficiency twin-screw extruder as claimed in claim 3, wherein: the limiting plate (a2) comprises a rotating shaft (a21), a pulling block (a22) and a fixing block (a23), the rotating shaft (a21) is connected to the right end of the limiting plate (a2) through a bolt, the pulling block (a22) is embedded and fixed between the right wall of the limiting plate (a2) and the swinging block (234), and the fixing block (a23) is welded at two ends of the pulling block (a 22).

5. The energy-saving environment-friendly efficient double-screw extruder as claimed in claim 1, wherein: the cleaning plate (24) comprises a buffer block (241), a scraping block (242), a fixing column (243) and a brush (245), the top of the buffer block (241) is fixedly embedded in the cleaning plate (24), the top of the scraping block (242) is connected to the lower inner wall of the cleaning plate (24) through a movable clamping and is welded with the bottom of the buffer block (241), the fixing column (243) is fixedly embedded in the cleaning plate (24), and the upper surface of the brush (245) is welded at the bottom of the fixing column (243).

6. The energy-saving environment-friendly high-efficiency twin-screw extruder as claimed in claim 5, wherein: scrape piece (242) including locating lever (b1), locating plate (b2), scraper blade (b3), inside locating lever (b1) top is inlayed admittedly in scraping piece (242), locating plate (b2) welding is terminal at locating lever (b1), scraper blade (b3) top welding is at locating plate (b2) lower surface.

7. The energy-saving environment-friendly high-efficiency twin-screw extruder as claimed in claim 6, wherein: scraper blade (b3) include gag lever post (b31), connecting rod (b32), extension spring (b33), gag lever post (b31) welds on scraper blade (b3) surface, connecting rod (b32) are embedded inside gag lever post (b31), extension spring (b33) both ends are welded at scraper blade (b3) right side surface.