Extruder with feed filtering function

Abstract

The utility model discloses an extruder with a feed filtering function, which comprises an extruder body, a feed hopper is fixedly mounted at the feed end of the extruder body, two fixed rods are symmetrically and fixedly mounted in the feed hopper, the fixed rods are arranged up and down, a moving plate is slidably mounted on the outer sides of the fixed rods, and the moving plate is connected with the extruder body. Magnets used for conducting magnetic attraction on metal are fixedly installed between the two moving plates at the same height at equal intervals, the motor operates to drive the screen to ascend and descend in a reciprocating mode, vibration of the screen is achieved, raw materials can be vibrated while being screened, and the raw materials are prevented from being stacked or blocking the screen; metal in falling raw materials can be adsorbed through the magnets, meanwhile, the magnets on the upper layer and the lower layer are driven to move in a staggered and reciprocating mode through operation of the motor, the metal in the falling raw materials can be adsorbed, the adsorption area of the magnets is increased, and the adsorption range and effect of the metal are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of extruders, in particular to an extruder with a feed filtering function. Background Art

[0002] Extruder is one of the commonly used machines in the manufacturing industry, including screw extruder, which relies on the pressure and shear force generated by the rotation of the screw to squeeze the material out of the head and form it through the die.

[0003] When the extruder is operating, the granular raw materials need to be placed into the barrel through the feeding hopper. Although the granular raw materials go through multiple steps in the processing process, there will still be a certain amount of metal components mixed in the granular raw materials due to some reasons such as fine metal particles mixed in when the raw material box is collected or the box body rusts and falls off, which affects the quality of the product. At the same time, when the granular raw materials are poured into the feeding hopper, the entry of some larger particles will cause the raw materials to not melt fully in the extruder, resulting in poor quality of the extruded product. Utility Model Content

[0004] The purpose of the utility model is to provide an extruder with a feed filtering function to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an extruder with a feed filtering function, comprising an extruder body, a feed hopper fixedly installed at the feed end of the extruder body, fixed rods symmetrically fixedly installed inside the feed hopper, the fixed rods are arranged in two upper and two lower positions, and movable plates are slidably installed on the outer sides of the fixed rods, and magnets for magnetically attracting metals are equidistantly fixedly installed between the two movable plates at the same height, the upper and lower layers of magnets are staggered, and the two movable plates of the upper and lower layers can move back and forth staggeredly, and a screen is slidably and liftably installed inside the feed hopper, and the screen can screen and vibrate the raw materials.

[0006] As a further preferred embodiment of the present technical solution, a rotating rod is rotatably installed at a position between the upper and lower layers of magnets in the middle of the feed hopper through a bearing, a motor is fixedly installed at a position corresponding to the rotating rod on one side of the feed hopper, the output end of the motor is fixedly connected to one end of the rotating rod, discs are symmetrically fixedly installed at both ends of the rotating rod, an extrusion rod is fixedly installed in a ring array on one side of the disc with the center axis of the disc as the axis, an extrusion arc surface for extrusion by the extrusion rod is opened on one side of the movable plate, and reset springs are symmetrically sleeved on both ends of the fixed rod, one end of the reset spring is fixedly connected to one end of the movable plate, and the other end of the reset spring is fixedly connected to the inner wall of the feed hopper.

[0007] As a further preferred embodiment of the present technical solution, a push plate is slidably installed on the outer side between a plurality of the magnets, and the push plate can push the metal magnetically attracted to the outer side of the magnet.

[0008] As a further preferred embodiment of the present technical solution, fixed blocks are symmetrically fixedly installed at the four corners of the feed hopper, a limiting rod is fixedly installed between the two fixed blocks at the same top angle, a fixed plate is slidably installed between the four limiting rods, the middle part of the fixed plate is fixedly connected to the screen, an extrusion spring is sleeved on the outer side of the top of the limiting rod, one end of the extrusion spring is fixedly connected to the upper surface of the fixed plate, and the other end of the extrusion spring is fixedly connected to the top of the limiting rod, and extrusion rings are eccentrically fixedly installed at both ends of the rotating rod, and the extrusion rings are arranged to squeeze the lower surface of the fixed plate.

[0009] As a further preferred embodiment of the present technical solution, the screen is arranged at a position corresponding to the magnet.

[0010] As a further preferred embodiment of the present technical solution, triangular blocks are fixedly installed at equal distances on the top of the feed hopper.

[0011] The utility model provides an extruder with a feed filtering function, which has the following beneficial effects:

[0012] (1) The utility model discharges raw materials from a feed hopper, and the raw materials are screened through a screen. At the same time, a motor drives a rotating rod to rotate, and extrusion rings at both ends of the rotating rod squeeze the lower surface of a fixed plate, driving the screen to rise. At this time, the extrusion spring is in a compressed state. When the extrusion ring continues to rotate to cancel the squeezing of the fixed plate, the screen is driven down by the push of the extrusion spring. The screen is vibrated in this reciprocating manner, and the raw materials can be screened and vibrated at the same time to prevent the raw materials from piling up or clogging the screen.

[0013] (2) The utility model can absorb metal in the falling raw materials through the magnet, and the rotation of the rotating rod will drive the disc to rotate, and the extrusion rod on one side of the disc will reciprocate and squeeze the extrusion arc surface on one side of the moving plate. Through the push of the reset springs at both ends and the driving of the upper and lower layers of magnets to move back and forth alternately, the metal in the falling raw materials can be absorbed, the adsorption area of ​​the magnet is increased, and the range and effect of metal adsorption are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a partial cross-sectional structural schematic diagram of the utility model;

[0016] Figure 3 This is one of the partial cross-sectional exploded structure schematic diagrams of the utility model;

[0017] Figure 4 This is the second schematic diagram of the partial cross-section explosion structure of the utility model;

[0018] In the figure: 1. Extruder body; 2. Feed hopper; 3. Fixed rod; 4. Moving plate; 5. Magnet; 6. Screen; 7. Rotating rod; 8. Motor; 9. Disc; 10. Extrusion rod; 11. Extrusion arc surface; 12. Reset spring; 13. Push plate; 14. Fixed block; 15. Limit rod; 16. Fixed plate; 17. Extrusion spring; 18. Extrusion ring; 19. Triangular block. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] The utility model provides a technical solution: Figures 1 to 4 As shown, in the present embodiment, an extruder with a feed filtering function comprises an extruder body 1, a feed hopper 2 is fixedly installed at the feed end of the extruder body 1, a fixed rod 3 is symmetrically fixedly installed inside the feed hopper 2, the fixed rod 3 is arranged in two upper and two lower portions, a movable plate 4 is slidably installed on the outer side of the fixed rod 3, a magnet 5 for magnetically attracting the metal is equidistantly fixedly installed between the two movable plates 4 at the same height, the upper and lower layers of the magnets 5 are staggered, the two movable plates 4 of the upper and lower layers can staggeredly reciprocate, a screen 6 is slidably and liftably installed inside the feed hopper 2, and the screen 6 can screen and vibrate the raw materials.

[0021] like Figures 1 to 4 As shown, a rotating rod 7 is rotatably installed at a position between the upper and lower layers of magnets 5 in the middle of the feed hopper 2 through a bearing, a motor 8 is fixedly installed at a position corresponding to the rotating rod 7 on one side of the feed hopper 2, and the output end of the motor 8 is fixedly connected to one end of the rotating rod 7, and discs 9 are symmetrically fixedly installed at both ends of the rotating rod 7, and an extrusion rod 10 is fixedly installed in a ring array on one side of the disc 9 with the central axis of the disc 9 as the axis, and an extrusion arc surface 11 for extrusion by the extrusion rod 10 is opened on one side of the movable plate 4, and reset springs 12 are symmetrically sleeved on both ends of the fixed rod 3, one end of the reset spring 12 is fixedly connected to one end of the movable plate 4, and the other end of the reset spring 12 is fixedly connected to the inner wall of the feed hopper 2.

[0022] The motor 8 drives the rotating rod 7 to rotate, and the rotation of the rotating rod 7 will drive the disc 9 to rotate. The extrusion rod 10 on one side of the disc 9 will reciprocate and squeeze the extrusion arc surface 11 on one side of the moving plate 4. The reset springs 12 at both ends push and drive the upper and lower layers of the magnets 5 to move back and forth alternately, so as to adsorb the metal in the falling raw materials, increase the adsorption area of ​​the magnet 5, and improve the range and effect of metal adsorption.

[0023] like Figures 1 to 4 As shown, a push plate 13 is slidably installed on the outer side between the plurality of magnets 5 , and the push plate 13 can push the metal magnetically attracted on the outer side of the magnet 5 .

[0024] After a period of use, the metal magnetically attracted to the outside of the magnet 5 can be pushed and collected by pushing the push plate 13 .

[0025] like Figures 1 to 4 As shown, fixed blocks 14 are symmetrically fixedly installed at the four corners of the feed hopper 2, a limiting rod 15 is fixedly installed between the two fixed blocks 14 at the same top angle, a fixed plate 16 is slidably installed between the four limiting rods 15, the middle part of the fixed plate 16 is fixedly connected to the screen 6, an extrusion spring 17 is sleeved on the outer side of the top of the limiting rod 15, one end of the extrusion spring 17 is fixedly connected to the upper surface of the fixed plate 16, and the other end of the extrusion spring 17 is fixedly connected to the top of the limiting rod 15, and an extrusion ring 18 is eccentrically fixedly installed at both ends of the rotating rod 7, and the extrusion ring 18 is arranged to squeeze the lower surface of the fixed plate 16.

[0026] The motor 8 drives the rotating rod 7 to rotate, and the extrusion rings 18 at both ends of the rotating rod 7 will squeeze the lower surface of the fixed plate 16, driving the screen 6 to rise. At this time, the extrusion spring 17 is in a compressed state. When the extrusion ring 18 continues to rotate to cancel the extrusion of the fixed plate 16, the screen 6 will be driven down by the push of the extrusion spring 17. The vibration of the screen 6 is achieved in this reciprocating manner, which can vibrate the raw materials while screening them to prevent the raw materials from accumulating or clogging the screen 6.

[0027] like Figures 1 to 4 As shown, the screen 6 is arranged corresponding to the position of the magnet 5 .

[0028] Most of the raw materials can be fed from the position of the magnet 5.

[0029] like Figures 1 to 4 As shown, triangular blocks 19 are fixedly installed at equal distances on the top of the feed hopper 2.

[0030] After the screen 6 rises to give a sudden push to the raw materials, when the screen 6 descends, the raw materials will be dispersed due to the squeezing of the triangular blocks 19 to prevent accumulation.

[0031] The utility model provides an extruder with a feed filtering function, and the specific working principle is as follows:

[0032] When the device is in use, the raw materials are discharged through the feed hopper 2, and the raw materials will be screened through the screen 6. At the same time, the motor 8 drives the rotating rod 7 to rotate, and the extrusion rings 18 at both ends of the rotating rod 7 will squeeze the lower surface of the fixed plate 16 to drive the screen 6 to rise. At this time, the extrusion spring 17 is in a compressed state. When the extrusion ring 18 continues to rotate to cancel the extrusion of the fixed plate 16, the screen 6 will be driven down by the push of the extrusion spring 17. The vibration of the screen 6 is achieved in this reciprocating manner, and the raw materials can be screened and vibrated at the same time to prevent the raw materials from accumulating or clogging the screen 6. At the same time, the magnet 5 can adsorb the metal in the falling raw materials, and the rotation of the rotating rod 7 will drive the disc 9 to rotate, and the extrusion rod 10 on one side of the disc 9 will reciprocate and squeeze the extrusion arc surface 11 on one side of the moving plate 4. The reset springs 12 at both ends push the upper and lower layers of the magnets 5 to move back and forth alternately, so that the metal in the falling raw materials can be adsorbed, the adsorption area of ​​the magnet 5 is increased, and the range and effect of metal adsorption are increased.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An extruder with a feed filtering function, comprising an extruder body (1), a feed hopper (2) being fixedly mounted at the feed end of the extruder body (1), characterized in that: The feed hopper (2) is symmetrically fixed with fixed rods (3), which are arranged in two upper and two lower positions. A movable plate (4) is slidably installed on the outer side of the fixed rods (3). Magnets (5) for magnetically attracting metal are equidistantly fixedly installed between the two movable plates (4) at the same height. The upper and lower layers of magnets (5) are staggered, and the two movable plates (4) can move back and forth in a staggered manner. A screen (6) is slidably installed inside the feed hopper (2), and the screen (6) can screen and vibrate the raw materials.

2. The extruder with feed filtering function according to claim 1, characterized in that: A rotating rod (7) is rotatably mounted at a position between the upper and lower layers of the magnets (5) in the middle of the feed hopper (2), and a motor (8) is fixedly mounted at a position corresponding to the rotating rod (7) on one side of the feed hopper (2). The output end of the motor (8) is fixedly connected to one end of the rotating rod (7). Discs (9) are symmetrically fixedly mounted at both ends of the rotating rod (7). An extrusion rod (10) is fixedly mounted in a ring array on one side of the disc (9) with the central axis of the disc (9) as the axis. An extrusion arc surface (11) for extrusion by the extrusion rod (10) is provided on one side of the movable plate (4). Reset springs (12) are symmetrically sleeved at both ends of the fixed rod (3). One end of the reset spring (12) is fixedly connected to one end of the movable plate (4), and the other end of the reset spring (12) is fixedly connected to the inner wall of the feed hopper (2).

3. An extruder with feed filtering function according to claim 2, characterized in that: A push plate (13) is slidably installed on the outer sides between a plurality of the magnets (5), and the push plate (13) can push the metal magnetically attracted on the outer sides of the magnets (5).

4. The extruder with feed filtering function according to claim 2, characterized in that: The four corners of the feed hopper (2) are symmetrically fixed with fixed blocks (14), a limiting rod (15) is fixedly installed between two fixed blocks (14) at the same top corner, a fixed plate (16) is slidably installed between the four limiting rods (15), the middle part of the fixing plate (16) is fixedly connected to the screen (6), an extrusion spring (17) is sleeved on the outer side of the top of the limiting rod (15), one end of the extrusion spring (17) is fixedly connected to the upper surface of the fixing plate (16), and the other end of the extrusion spring (17) is fixedly connected to the top of the limiting rod (15), and an extrusion ring (18) is eccentrically fixedly installed at both ends of the rotating rod (7), and the extrusion ring (18) is arranged to squeeze the lower surface of the fixing plate (16).

5. The extruder with feed filtering function according to claim 2, characterized in that: The screen (6) is arranged corresponding to the position of the magnet (5).

6. The extruder with feed filtering function according to claim 4, characterized in that: Triangular blocks (19) are fixedly installed at equal distances on the top of the feed hopper (2).

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