Feeding device capable of removing impurities

Abstract

The invention discloses an impurity-removing feeding device which is mounted on a machine barrel of an extruder. The feeding device comprises a storage hopper with a first opening and a second opening which are vertically opposite, a hopper seat with an inlet and an outlet which are vertically opposite, an adjusting mechanism at least partially arranged between the storage hopper and the hopper seat, and a magnetic mechanism movably arranged on the hopper seat. A window area is arranged on the side wall of the hopper seat and allows a user to visually observe the magnetic mechanism in the hopper seat from the outside of the hopper seat; the movable magnetic mechanism is arranged in the hopper seat for providing materials for the extruder barrel, and metal impurities in the materials are adsorbed through the magnetic mechanism so as to improve the quality of a final product; the movable magnetic mechanism is convenient for a user to clean adsorbed metal impurities, and the hopper seat is provided with a window area for the user to intuitively see the magnetic mechanism at the first position from the outside of the hopper seat, so that the user can clean the magnetic mechanism in time, and the hopper seat is prevented from being blocked.

Description

Technical Field

[0001] The present application relates to the technical field of plastic production equipment, and in particular to a feeding device for removing impurities. Background Art

[0002] Extruders usually feed materials centrally through a hopper connected to the barrel. The hopper is usually wide at the top and narrow at the bottom to concentrate the materials into the feed section of the screw in the barrel to avoid scattering and waste of materials. However, many materials currently contain a lot of metal impurities. After entering the barrel, the metal impurities flow with the materials during the rotation of the screw, which can easily scratch the extrusion screw and the inner wall of the barrel, causing damage to the extruder, resulting in the need for frequent maintenance of the screw and barrel. In addition, the products made from materials mixed with metal impurities after plasticization are of poor quality and have a high scrap rate, and need to be re-produced, resulting in a large waste of resources and time. Summary of the invention

[0003] In order to solve the above-mentioned technical problems, the purpose of this application is to provide a feeding device for removing impurities.

[0004] In order to achieve the above-mentioned purpose, the present application adopts the following technical solution: a feeding device for removing impurities is installed on the barrel of the extruder, and the feeding device comprises: A material storage hopper having a first opening and a second opening disposed opposite to each other in the upper and lower directions, wherein the first opening is located above the second opening; A hopper seat, mounted at the lower end of the storage hopper and comprising an inlet and an outlet arranged opposite to each other in the upper and lower parts, wherein the inlet is connected to the second opening, and the outlet is connected to the barrel; An adjusting mechanism, at least partially disposed between the storage hopper and the hopper seat, the adjusting mechanism being used to adjust the size of the area of ​​communication between the inlet and the second opening; and A magnetic mechanism is removably disposed on the hopper seat, the magnetic mechanism having a first position in the hopper seat and between the inlet and the outlet and a second position outside the hopper seat, the magnetic mechanism being used to absorb impurities in the hopper seat; There is a window area on the side wall of the hopper seat, and the window area allows the user to directly view the magnetic mechanism in the first position from the outside of the hopper seat.

[0005] In the above technical solution, it is further preferred that the area of ​​the first opening is larger than the area of ​​the second opening, and a removable hopper cover is provided at the first opening.

[0006] In the above technical solution, it is further preferred that the adjustment mechanism includes a plug plate movably arranged between the second opening and the inlet and a driving component that drives the plug plate to move back and forth.

[0007] In the above technical solution, it is further preferred that the driving assembly includes a screw nut, a screw and a handwheel, the screw nut is fixedly connected to the plug plate, the screw is inserted into the screw nut and threadedly connected to the screw nut, the handwheel is coaxially connected to the screw, and the screw nut is configured to move back and forth along the screw when the screw rotates around its own axis.

[0008] In the above technical solution, it is further preferred that the side wall of the hopper seat is provided with a socket for the magnetic mechanism to move between the first position and the second position, and the socket is arranged away from the window area.

[0009] In the above technical solution, it is further preferred that when the magnetic mechanism is located at the first position, at least a portion of the magnetic mechanism is exposed outside the socket.

[0010] In the above technical solution, it is further preferred that the magnetic mechanism includes a fixing frame and a plurality of magnetic rods, the plurality of magnetic rods are fixed on the fixing frame, and there is a gap between two adjacent magnetic rods; at least a portion of the fixing frame is exposed to the outside of the hopper seat when the magnetic mechanism is located in the first position.

[0011] In the above technical solution, it is further preferred that the feeding device also includes an auxiliary feeding mechanism connected to the hopper seat, and the hopper seat is also provided with an auxiliary material port connected to the auxiliary feeding mechanism, and the auxiliary material port is arranged to avoid the socket and the window area, and is located above the socket.

[0012] In the above technical solution, it is further preferred that the window area includes a window through hole opened on the side wall of the hopper seat and a window plate covering the window through hole, and the window plate is made of transparent material.

[0013] In the above technical solution, it is further preferred that the window plate is an acrylic plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present application sets a movable magnetic mechanism in a hopper seat that provides materials to the extruder barrel, and absorbs metal impurities in the material through the magnetic mechanism to improve the quality of the final product; the movable magnetic mechanism is convenient for the user to clean the absorbed metal impurities, and a window area is provided on the hopper seat for the user to directly view the magnetic mechanism in the first position from the outside of the hopper seat, so that the user can clean the magnetic mechanism in time to avoid clogging of the hopper seat, and the structure is simple and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the three-dimensional structure of a feeding device for removing impurities provided in an embodiment of the present application; Figure 2 for Figure 1 A schematic diagram of the structure of the feeding device; Figure 3 for Figure 1 A schematic diagram of the three-dimensional structure of the hopper seat; Figure 4 for Figure 1 A schematic diagram of the three-dimensional structure of the regulating mechanism; Figure 5 for Figure 4 A front view of the regulating mechanism; Figure 6 for Figure 1 A schematic diagram of the three-dimensional structure of the magnetic mechanism in FIG. Figure 7 for Figure 6 Front view of the magnetic mechanism.

[0016] Among them: 100, feeding device; 10, storage hopper; 1, first opening; 2, second opening; 3, hopper cover; 31, feed port; 20, hopper seat; 4, inlet; 5, outlet; 12, socket; 13, window area; 131, window through hole; 132, window plate; 14, auxiliary material port; 15, slot; 30, adjustment mechanism; 6, plug plate; 7, drive assembly; 71, screw nut; 72, screw; 73, handwheel; 74, support frame; 40, magnetic mechanism; 8, fixing frame; 9, magnetic rod; 11, spacing; 50, auxiliary feeding mechanism. DETAILED DESCRIPTION

[0017] To describe the technical content, structural features, achieved purpose and effect of the application in detail, the technical solutions in the embodiments of the application will be described below in conjunction with the drawings in the embodiments of the application. Obviously, the described embodiments are only a part of the embodiments of the application, rather than all of the embodiments. In the following description, for the purpose of explanation, many specific details are set forth to provide a detailed description of various exemplary embodiments or implementations of the invention. However, various exemplary embodiments may also be implemented without these specific details or in the case of one or more equivalent arrangements. In addition, various exemplary embodiments may be different, but not necessarily exclusive. For example, without departing from the inventive concept, the specific shape, structure and characteristics of the exemplary embodiment may be used or implemented in another exemplary embodiment.

[0018] In the following, the terms "first", "second", etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0019] The terms “upper” and “lower” in this application refer to the attached Figure 2 Upper and lower shown.

[0020] In the present application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0021] An embodiment of the present application provides a feeding device for removing impurities. The feeding device 100 is installed on the barrel of an extruder and is used to convey materials into the barrel in a concentrated and controllable manner.

[0022] like Figure 1 , 2 As shown, the feeding device 100 includes a storage hopper 10, a hopper seat 20, an adjustment mechanism 30 and a magnetic mechanism 40. The lower end of the hopper seat 20 is installed on the barrel and communicated with the barrel. The storage hopper 10 and the hopper seat 20 have the same center line X 1 The material storage hopper 10 is arranged at the upper end of the hopper seat 20, at least part of the adjustment mechanism 30 is arranged between the material storage hopper 10 and the hopper seat 20, and the magnetic mechanism 40 is movably arranged on the hopper seat 20.

[0023] like Figure 1-3As shown, the storage hopper 10 includes a first opening 1 and a second opening 2 which are arranged opposite to each other from top to bottom. The first opening 1 is located above the second opening 2, and the area of ​​the first opening 1 is larger than the area of ​​the second opening 2. The storage hopper 10 is wide at the top and narrow at the bottom and is used to collect and store materials. A removable hopper cover 3 is also provided at the first opening 1. The hopper cover 3 has a feed port 31 for materials to enter the storage hopper 10. The hopper cover 3 covers the first opening 1 to prevent the materials in the storage hopper 10 from getting wet.

[0024] The hopper seat 20 includes an inlet 4 and an outlet 5 which are arranged opposite to each other in the upper and lower parts. The inlet 4 is located on the upper side of the outlet 5 and is connected with the second opening 2. The outlet 5 is connected with the barrel. The material in the storage hopper 10 enters the barrel through the hopper seat 20.

[0025] like Figure 1 , 2 As shown, the adjustment mechanism 30 is used to adjust the size of the area of ​​communication between the second opening 2 and the inlet 4; the adjustment mechanism 30 includes a plug plate 6 movably arranged between the second opening 2 and the inlet 4 and a driving component 7 for driving the plug plate 6 to move back and forth, the driving component 7 drives the plug plate 6 to move back and forth to adjust the coverage area of ​​the plug plate 6 between the second opening 2 and the inlet 4, when the driving component 7 drives the plug plate 6 to completely cover the second opening 2 and the inlet 4, the communication between the storage hopper 10 and the hopper seat 20 is blocked, and the material is stored in the storage hopper 10; when the driving component 7 drives the plug plate 6 to be withdrawn from between the second opening 2 and the inlet 4 to the outside of the storage hopper 10 and the hopper seat 20, the larger the area of ​​the plug plate 6 withdrawn is, the larger the area of ​​communication between the second opening 2 and the inlet 4 is; the flow rate of the material in the barrel conveyed by the storage hopper 10 through the hopper seat 20 is controlled by the plug plate 6 that moves back and forth. The feed amount of the hopper seat 20 is effectively controlled by the adjustment mechanism 30 to avoid accumulation and bridging of materials in the barrel, thereby increasing the material intake and feeding efficiency of the barrel and further improving the output of the extruder.

[0026] like Figure 2 , 4 5, the drive assembly 7 includes a screw nut 71, a screw 72 and a hand wheel 73. The screw 72 is suspended and installed on the outside of the connection between the storage hopper 10 and the hopper seat 20 through a support frame 74. The screw 72 can rotate around its own axis Y relative to the support frame 74. 1 The screw nut 71 is fixedly connected to the plug plate 6, the screw 72 is inserted into the screw nut 71 and is threadedly connected to the screw nut 71, and the hand wheel 73 is coaxially connected to the screw 72. When the hand wheel 73 rotates under the action of external force, the screw 72 rotates around its own axis Y under the drive of the hand wheel 73. 1 At this time, the screw nut 71 drives the plug plate 6 to move back and forth along the screw 72, thereby realizing the driving assembly 7 to drive the plug plate 6; the axis Y of the screw 72 1Through the center line X 1 And with the center line X 1 Perpendicular to each other.

[0027] like Figure 1 , 3 As shown, the upper end portion of the hopper seat 20 is provided with a slot 15 that cooperates with the plug plate 6. The slot 15 is located on the upper side of the inlet 4 and has an area larger than the area of ​​the inlet 4. The lower end surface of the storage hopper 10 is limited on the upper side of the slot 15, so that the plug plate 6 can be movably inserted into the slot 15. The moving direction is limited by the lower end surface of the storage hopper 10 and the slot 15, and the material is effectively prevented from leaking from between the storage hopper 10 and the hopper seat 20.

[0028] like Figure 1 , 6 As shown in Figures 7 and 8, the magnetic mechanism 40 includes a fixed frame 8 and a plurality of magnetic rods 9. The plurality of magnetic rods 9 are fixed on the fixed frame 8. The magnetic rods 9 are used to absorb metal impurities in the material to prevent the metal impurities from entering the barrel with the material and affecting the quality of the product. There is a gap 11 between two adjacent magnetic rods 9 for the material with impurities removed to pass through. The magnetic mechanism 40 has a first position located inside the hopper seat 20 and a second position located outside the hopper seat 20. When the magnetic mechanism 40 is in the first position, the plurality of magnetic rods 9 are located between the inlet 4 and the outlet 5 to absorb impurities in the material input from the inlet 4. The material with impurities removed passes through the gap 11 and enters the barrel from the outlet 5. When the magnetic mechanism 40 is in the second position, the fixed frame 8 and the plurality of magnetic rods 9 on the fixed frame 8 are located outside the hopper seat 20.

[0029] like Figure 3 As shown, a socket 12 is provided on the side wall of the hopper seat 20 for the magnetic mechanism 40 to move between a first position and a second position. When the magnetic mechanism 40 is in the first position, at least a portion of the fixing frame 8 is exposed outside the socket 12 to facilitate the operator to grasp and remove the magnetic mechanism 40.

[0030] like Figure 1 , 3As shown, the side wall of the hopper seat 20 has a window area 13 for the user to directly view the inside of the hopper seat 20 from the outside of the hopper seat 20. The window area 13 includes a window through hole 131 opened on the side wall of the hopper seat 20 and a window plate 132 covering the window through hole 131. The window through hole 131 is arranged away from the socket 12 and connects the inside and outside of the hopper seat 20. The window plate 132 is made of a transparent material. The user can directly view the magnetic mechanism 40 in the first position from the outside of the hopper seat 20 through the transparent window plate 132. When it is observed that there are too many impurities adsorbed on the magnetic mechanism 40, the magnetic mechanism 40 can be taken out to clean the impurities, and the magnetic mechanism 40 can be reinserted into the hopper seat 20 after the impurities are cleaned. In the embodiment of the present application, the window plate 132 is an acrylic plate, and is detachably connected to the hopper seat 20 by a plurality of mechanical fasteners. The acrylic plate is strong and wear-resistant, and has a low cost.

[0031] The feeding device 100 also includes an auxiliary feeding mechanism 50 arranged on the hopper seat 20. The hopper seat 20 is provided with an auxiliary material port 14 connected to the auxiliary feeding mechanism 50. The auxiliary material port 14 is arranged to avoid the socket 12 and the window through hole 131, and is located on the upper side of the socket 12. The auxiliary feeding mechanism 50 is used to input a small amount of auxiliary materials such as masterbatches into the hopper seat 20, and may remove impurities in the auxiliary materials through the magnetic mechanism 40.

[0032] The present application arranges a movable magnetic mechanism in the hopper seat 20 that provides materials to the extruder barrel, and absorbs metal impurities in the material through the magnetic mechanism to improve the quality of the final product; the movable magnetic mechanism is convenient for the user to clean the absorbed metal impurities, and a window area is provided on the hopper seat 20 for the user to directly view the magnetic mechanism in the first position from the outside of the hopper seat 20, so that the user can clean the magnetic mechanism in time to avoid clogging of the hopper seat 20, and the structure is simple and the operation is convenient.

[0033] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present application. Without departing from the spirit and scope of the present application, the present application may have various changes and improvements, and the scope of protection required by the present application is defined by the attached claims, description and their equivalents.

Claims

1. A feeding device for removing impurities, installed on the barrel of the extruder, It is characterized in that The feeding device comprises: A material storage hopper having a first opening and a second opening disposed opposite to each other in the upper and lower directions, wherein the first opening is located above the second opening; A hopper seat, mounted at the lower end of the storage hopper and comprising an inlet and an outlet arranged opposite to each other in the upper and lower parts, wherein the inlet is connected to the second opening, and the outlet is connected to the barrel; An adjusting mechanism, at least partially disposed between the storage hopper and the hopper seat, the adjusting mechanism being used to adjust the size of the area of ​​communication between the inlet and the second opening; and A magnetic mechanism is removably disposed on the hopper seat, the magnetic mechanism having a first position in the hopper seat and between the inlet and the outlet and a second position outside the hopper seat, the magnetic mechanism being used to absorb impurities in the hopper seat; There is a window area on the side wall of the hopper seat, and the window area allows the user to directly view the magnetic mechanism in the first position from the outside of the hopper seat.

2. The feeding device according to claim 1, It is characterized in that The area of ​​the first opening is larger than that of the second opening, and a removable hopper cover is provided at the first opening.

3. The feeding device according to claim 1, It is characterized in that The regulating mechanism comprises a plug plate movably arranged between the second opening and the inlet and a driving component for driving the plug plate to move back and forth.

4. The feeding device according to claim 3, It is characterized in that The driving assembly includes a screw nut, a screw and a handwheel. The screw nut is fixedly connected to the plug plate. The screw is inserted into the screw nut and threadedly connected to the screw nut. The handwheel is coaxially connected to the screw. The screw nut is configured to move back and forth along the screw when the screw rotates around its own axis.

5. The feeding device according to claim 1, It is characterized in that The side wall of the hopper seat is provided with a socket for the magnetic mechanism to move between the first position and the second position, and the socket is arranged away from the window area.

6. The feeding device according to claim 5, It is characterized in that When the magnetic mechanism is located at the first position, at least a portion of the magnetic mechanism is exposed outside the socket.

7. The feeding device according to claim 6, It is characterized in that The magnetic mechanism comprises a fixing frame and a plurality of magnetic rods, wherein the plurality of magnetic rods are fixed on the fixing frame, and a distance is provided between two adjacent magnetic rods; at least a portion of the fixing frame is exposed to the outside of the hopper seat when the magnetic mechanism is located at the first position.

8. The feeding device according to claim 5, It is characterized in that The feeding device also includes an auxiliary feeding mechanism connected to the hopper seat. The hopper seat is also provided with an auxiliary feeding port connected to the auxiliary feeding mechanism. The auxiliary feeding port is arranged to avoid the socket and the window area and is located above the socket.

9. The feeding device according to claim 1, It is characterized in that The window area includes a window through hole opened on the side wall of the hopper seat and a window plate covering the window through hole, and the window plate is made of transparent material.

10. The feeding device according to claim 9, It is characterized in that The window plate is an acrylic plate.

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