Anti-blocking extruder for plastics

Abstract

The anti-blocking extruder comprises a base, an extrusion sleeve is fixedly installed on the base, a feeding hopper is fixedly installed on the extrusion sleeve, an anti-blocking assembly is arranged in the feeding hopper, and an anti-splashing assembly is arranged at the top end, away from the anti-blocking assembly, in the feeding hopper. The anti-splashing assembly comprises a rotating shaft rod rotationally connected to the inner surface of the feeding hopper, cams are symmetrically welded to the rotating shaft rod, grooves are formed in the two ends, away from the top end of the rotating shaft rod, of the inner surface of the feeding hopper, a filter plate is slidably connected between the grooves, and rotation of the cams enables the filter plate to move back and forth in the grooves. The raw materials in the feeding hopper can be screened through back-and-forth movement of the filter plate, the extruder can be effectively prevented from being blocked, the production efficiency of the extruder is further improved, the situation that the raw materials are splashed due to rotation of the feeding impeller is effectively avoided by arranging the filter plate, and then waste of the raw materials is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of extruders, and specifically, to an anti-blocking extruder for plastics. Background Technique

[0002] An extruder belongs to one type of plastic machinery. A screw extruder relies on the pressure and shear force generated by the rotation of the screw, enabling the material to be fully plasticized and evenly mixed. Through die forming, plastic extruders can be basically classified into twin-screw extruders, single-screw extruders, and rarely seen multi-screw extruders and screwless extruders. Plastic materials enter the extruder from the hopper and are conveyed forward by the rotation of the screw. During the forward movement of the material, it undergoes the heating of the barrel, the shear and compression effects brought by the screw, causing the material to melt.

[0003] After retrieval, a patent with the authorization number CN221292198U in China discloses an anti-blocking extruder for plastics, which relates to the technical field of extruders and specifically is an anti-blocking extruder for plastics. In this anti-blocking extruder for plastics, through the combined use of a feeding hopper, an inclined plate, a feeding impeller, and a servo motor, during the operation of this anti-blocking extruder for plastics, the plastic raw materials to be input into the twin-screw extruder are located above the inclined plate in the feeding hopper. The servo motor can operate and drive the entire feeding impeller to rotate through its drive shaft, driving the material in the feeding hopper to fall through the gap between the two inclined plates. By adjusting the rotation speed of the feeding impeller, the falling rate of the raw materials is controlled, thereby controlling the working efficiency of the extruder and effectively preventing blockage.

[0004] Based on the retrieval of the above patent and the discovery in combination with the equipment in the prior art, when the above equipment is feeding, the rotation of the feeding impeller will cause the raw materials to splash, resulting in waste of the raw materials and increasing the production cost at the same time.

[0005] Regarding the problems in the related technology, no effective solutions have been proposed yet. Content of the Utility Model

[0006] Regarding the problems in the related technology, the utility model proposes an anti-blocking extruder for plastics to overcome the above technical problems existing in the prior related technology.

[0007] Therefore, the specific technical solution adopted by the utility model is as follows:

[0008] An anti-blocking extruder for plastics, comprising a base, on which an extrusion sleeve is fixedly installed. A screw is rotatably connected inside the extrusion sleeve. A feed hopper is fixedly installed on the extrusion sleeve, and the feed hopper communicates with the extrusion sleeve. An anti-blocking component is arranged inside the feed hopper, and an anti-splash component is arranged at the top of the feed hopper away from the anti-blocking component. The anti-splash component includes a rotating shaft rod rotatably connected to the inner surface of the feed hopper. Cams are symmetrically welded on the rotating shaft rod. Grooves are opened at the top ends of both ends of the inner surface of the feed hopper away from the rotating shaft rod. A filter plate is slidably connected between the grooves. Springs are symmetrically welded on the filter plate, and the ends of the springs away from the filter plate are fixedly connected to fixing pieces, and the fixing pieces are fixedly installed on the inner surface of the feed hopper. The output end of the extrusion sleeve is fixedly installed with an extrusion die head, and heating modules are fixedly installed at one ends of both sides of the outer surface of the extrusion sleeve close to the extrusion die head.

[0009] Further, in order to avoid blockage in the discharge hopper, the anti-blocking component includes a driving shaft rod rotatably connected to the inner surface of the feed hopper, and a feeding impeller is fixedly connected to the driving shaft rod.

[0010] Further, in order to make the rotating shaft rod rotate with the driving shaft rod, one end of the driving shaft rod extends outside the feed hopper and is fixedly connected to a first transmission wheel, and one end of the rotating shaft rod extends outside the feed hopper and is fixedly connected to a second transmission wheel.

[0011] Further, in order to make the second transmission wheel rotate with the first transmission wheel, the first transmission wheel is connected to the second transmission wheel through a transmission belt.

[0012] Further, in order to facilitate the rotation of the driving shaft rod, the other end of the driving shaft rod extends outside the feed hopper and is connected to the output end of a driving motor, and the driving motor is fixedly installed outside the feed hopper.

[0013] Further, in order to facilitate the rotation of the screw, one end of the screw extends outside the extrusion sleeve and is connected to an extrusion motor through a coupling.

[0014] Further, for the convenience of personnel control, a controller is fixedly installed at one end of the base close to the extrusion sleeve, and the controller is electrically connected to the extrusion motor, the driving motor and the heating module.

[0015] The beneficial effects of the present utility model are as follows:

[0016] 1. The controller makes the driving motor work. The driving motor drives the driving shaft rod to rotate, and makes the feeding impeller rotate inside the feed hopper. The rotation of the feeding impeller conveys the materials in the feed hopper into the extrusion sleeve, effectively avoiding the situation of blockage in the feed hopper.

[0017] 2. The rotation of the drive shaft rod causes the first transmission wheel to rotate accordingly. Under the action of the transmission belt, the second transmission wheel rotates with the first transmission wheel, and the rotating shaft rod rotates in the feed hopper. The rotation of the rotating shaft rod causes the cam to rotate accordingly. Under the elastic action of the spring, the filter plate is always in contact with the cam. The rotation of the cam causes the filter plate to move back and forth in the groove. The back-and-forth movement of the filter plate can screen the raw materials in the feed hopper, effectively avoiding the blockage of the extruder, further improving the production efficiency of the extruder. By providing the filter plate, the situation of raw material splashing caused by the rotation of the feeding impeller is effectively avoided, thereby reducing the waste of raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 is a schematic structural diagram of an anti-blocking extruder for plastics according to an embodiment of the present invention;

[0020] Figure 2 is a schematic side view structural diagram of an anti-blocking extruder for plastics according to an embodiment of the present invention;

[0021] Figure 3 is a sectional view of the feed hopper in an anti-blocking extruder for plastics according to an embodiment of the present invention;

[0022] Figure 4 is Figure 3 the enlarged view at A in

[0023] In the figure:

[0024] 1. Base; 2. Extrusion sleeve; 3. Screw; 4. Coupling; 5. Extrusion motor; 6. Extrusion die head; 7. Heating module; 8. Feed hopper; 9. Drive motor; 10. Drive shaft rod; 11. Feeding impeller; 12. First transmission wheel; 13. Transmission belt; 14. Second transmission wheel; 15. Rotating shaft rod; 16. Cam; 17. Groove; 18. Filter plate; 19. Spring; 20. Fixing piece; 21. Controller. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] According to an embodiment of the present utility model, a plastic anti-clogging extruder is provided.

[0027] Embodiment 1;

[0028] As Figures 1 - 3 shown, the plastic anti-clogging extruder according to the embodiment of the present utility model includes a base 1, an extrusion sleeve 2 is fixedly installed on the base 1, a controller 21 is fixedly installed at one end of the base 1 close to the extrusion sleeve 2, the controller 21 is electrically connected to a power source, a screw 3 is rotatably connected inside the extrusion sleeve 2, one end of the screw 3 extends outside the extrusion sleeve 2 and is connected to the output end of an extrusion motor 5 through a coupling 4, the extrusion motor 5 is fixedly installed on the base 1 and is electrically connected to the controller 21, an extrusion die head 6 is fixedly installed at the output end of the extrusion sleeve 2, heating modules 7 are fixedly installed on both sides of the outer surface of the extrusion sleeve 2 close to one end of the extrusion die head 6, the heating modules 7 are electrically connected to the controller 21, a feed hopper 8 is fixedly installed on the extrusion sleeve 2, the feed hopper 8 communicates with the extrusion sleeve 2, an anti-clogging assembly is provided inside the feed hopper 8, the anti-clogging assembly includes a driving shaft rod 10 rotatably connected to the inner surface of the feed hopper 8, a feeding impeller 11 is fixedly connected to the driving shaft rod 10, one end of the driving shaft rod 10 extends outside the feed hopper 8 and is fixedly connected to a first transmission wheel 12, the other end of the driving shaft rod 10 extends outside the feed hopper 8 and is connected to the output end of a driving motor 9, the driving motor 9 is fixedly installed outside the feed hopper 8 and is electrically connected to the controller 21, the controller 21 causes the driving motor 9 to work, the driving motor 9 drives the driving shaft rod 10 to rotate, and causes the feeding impeller 11 to rotate inside the feed hopper 8, and the rotation of the feeding impeller 11 conveys the material inside the feed hopper 8 into the extrusion sleeve 2, effectively avoiding the occurrence of blockage inside the feed hopper 8.

[0029] Embodiment 2;

[0030] Please refer to Figure 1 、 Figure 3 and Figure 4, a splash-proof component is provided at the top of the feed hopper 8 away from the drive shaft rod 10. The splash-proof component includes a rotating shaft rod 15 rotatably connected to the inner surface of the feed hopper 8. Cam 16s are symmetrically welded on the rotating shaft rod 15. Grooves 17 are formed at the two ends of the inner surface of the feed hopper 8 away from the top of the rotating shaft rod 15. A filter plate 18 is slidably connected between the grooves 17. Springs 19 are symmetrically welded on the filter plate 18. One end of the spring 19 away from the filter plate 18 is fixedly connected to a fixing member 20. The fixing member 20 is fixedly installed on the inner surface of the feed hopper 8. One end of the rotating shaft rod 15 extends outside the feed hopper 8 and is fixedly connected to the second transmission wheel 14. The second transmission wheel 14 is connected to the first transmission wheel 12 through a transmission belt 13. The rotation of the drive shaft rod 10 causes the first transmission wheel 12 to rotate accordingly. Under the action of the transmission belt 13, the second transmission wheel 14 rotates with the first transmission wheel 12, and the rotating shaft rod 15 rotates in the feed hopper 8. The rotation of the rotating shaft rod 15 causes the cam 16 to rotate accordingly. Under the elastic action of the spring 19, the filter plate 18 is always in contact with the cam 16. The rotation of the cam 16 causes the filter plate 18 to move back and forth in the groove 17. The back-and-forth movement of the filter plate 18 can screen the raw materials in the feed hopper 8, effectively avoiding the blockage of the extruder and further improving the production efficiency of the extruder. At the same time, the setting of the filter plate 18 effectively avoids the splash of raw materials caused by the rotation of the feeding impeller 11, thereby reducing the waste of raw materials.

[0031] To facilitate the understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process will be described in detail below.

[0032] In practical applications, first, place the raw materials in the feed hopper 8. Secondly, the controller 21 makes the drive motor 9 operate. The drive motor 9 drives the drive shaft rod 10 to rotate. The rotation of the drive shaft rod 10 causes the first transmission wheel 12 to rotate accordingly. Under the action of the transmission belt 13, the second transmission wheel 14 rotates with the first transmission wheel 12, and the rotating shaft rod 15 rotates in the feed hopper 8. The rotation of the rotating shaft rod 15 causes the cam 16 to rotate accordingly. Under the elastic action of the spring 19, the filter plate 18 is always in contact with the cam 16. The rotation of the cam 16 causes the filter plate 18 to move back and forth in the groove 17. The back-and-forth movement of the filter plate 18 can screen the raw materials in the feed hopper 8. Then, the screened raw materials fall to the bottom end of the feed hopper 8. The rotation of the drive shaft rod 10 causes the feeding impeller 11 to rotate in the feed hopper 8. The rotation of the feeding impeller 11 conveys the materials in the feed hopper 8 to the extrusion sleeve 2, effectively avoiding the blockage in the feed hopper 8. At the same time, the setting of the filter plate 18 effectively avoids the situation of raw material splashing caused by the rotation of the feeding impeller 11, thereby reducing the waste of raw materials. Finally, the raw materials enter the extrusion sleeve 2. At this time, the extrusion motor 5 operates, and the screw 3 rotates in the extrusion sleeve 2 through the coupling 4, and the plastic heated by the heating module 7 is extruded through the extrusion die head 6, thus completing the working process of the entire extruder.

[0033] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A plastic anti-clogging extruder, comprising a base (1), characterized in that: An extrusion sleeve (2) is fixedly mounted on the base (1), a screw (3) is rotatably connected inside the extrusion sleeve (2), a feed hopper (8) is fixedly mounted on the extrusion sleeve (2), the feed hopper (8) is in communication with the extrusion sleeve (2), an anti-blocking component is arranged inside the feed hopper (8), an anti-splashing component is arranged at the top of the feed hopper (8) away from the anti-blocking component, the anti-splashing component comprises a rotating shaft (15) rotatably connected to the inner surface of the feed hopper (8), a cam (16) is symmetrically welded on the rotating shaft (15), and the inner surface of the feed hopper (8) is provided with a cam (16). A groove (17) is provided at both ends away from the top of the rotating shaft (15), a filter plate (18) is slidably connected between the grooves (17), and a spring (19) is symmetrically welded on the filter plate (18), and one end of the spring (19) away from the filter plate (18) is fixedly connected to a fixing member (20), and the fixing member (20) is fixedly installed on the inner surface of the feed hopper (8), and an extrusion die head (6) is fixedly installed at the output end of the extrusion sleeve (2), and a heating module (7) is fixedly installed on both sides of the outer surface of the extrusion sleeve (2) at one end close to the extrusion die head (6).

2. The anti-clogging extruder for plastics according to claim 1, characterized in that: The anti-blocking component comprises a driving shaft (10) rotatably connected to the inner surface of the feed hopper (8), and a feeding impeller (11) is fixedly connected to the driving shaft (10).

3. The anti-clogging extruder for plastics according to claim 2, characterized in that: One end of the driving shaft (10) extends outside the feed hopper (8) and is fixedly connected to the first transmission wheel (12), and one end of the rotating shaft (15) extends outside the feed hopper (8) and is fixedly connected to the second transmission wheel (14).

4. The anti-clogging extruder for plastics according to claim 3, characterized in that: The first transmission wheel (12) is connected to the second transmission wheel (14) via a transmission belt (13).

5. The anti-clogging extruder for plastics according to claim 3, characterized in that: The other end of the driving shaft (10) extends to the outside of the feeding hopper (8) and is connected to the output end of the driving motor (9), and the driving motor (9) is fixedly mounted outside the feeding hopper (8).

6. The anti-clogging extruder for plastics according to claim 5, characterized in that: One end of the screw (3) extends outside the extrusion sleeve (2) and is connected to the extrusion motor (5) via a coupling (4).

7. The anti-clogging extruder for plastics according to claim 6, characterized in that: A controller (21) is fixedly mounted on one end of the base (1) close to the extrusion sleeve (2), and the controller (21) is electrically connected to the extrusion motor (5), the drive motor (9) and the heating module (7).

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