A feeding device of a plastic extruder

Abstract

The utility model discloses a kind of feeding devices of plastic extruder, it is related to plastic processing equipment technical field, including barrel, the inner wall of barrel is equipped with slide bar, the outer wall of slide bar is equipped with return spring, the inner wall of barrel is equipped with fixed bin.The utility model is equipped with barrel, slide bar, return spring, fixed bin, slot, protective cover and plug block, by pressing protective cover downwards, and slide bar is driven to slide downwards, at this time, return spring is compressed under the pressure of slide bar, make plug block completely separate from fixed bin, then rotate protective cover, make plug block rotating on protective cover to the position of alignment with slot, then use the rebound of return spring to make slide bar push upwards, push plug block into slot, then extract protective cover, without using tool, protective cover can be taken out quickly, feeding is carried out, improve the convenience of device.

Description

Technical Field

[0001] This utility model relates to the field of plastic processing equipment technology, specifically to a feeding device for a plastic extruder. Background Technology

[0002] In plastic extrusion molding equipment, the plastic extruder is usually called the main machine, while the downstream equipment that matches it, the plastic extrusion molding machine, is called the auxiliary machine. The plastic extruder can be matched with various plastic molding auxiliary machines such as pipes, films, rods, monofilaments, flat filaments, strapping, extruded mesh, sheets, profiles, granulation, and cable sheathing to form various plastic extrusion molding production lines to produce various plastic products. Therefore, a feeding device for the plastic extruder is needed.

[0003] Existing feeding devices for plastic extruders require matching tools, such as wrenches and screwdrivers of specific sizes, to be found before installing the cap. This often necessitates repeatedly searching the toolbox for suitable tools, which consumes time and directly extends the preparation time before feeding. During production, the cap needs to be disassembled and installed every time raw materials are changed or the internal structure of the device is inspected or maintained, severely impacting production continuity and efficiency. Furthermore, the disassembly and cleaning of the screw conveyor is inconvenient. The screw conveyor is a core component of the feeding device, and its surface easily retains material, especially when processing highly viscous plastic raw materials. This residue gradually accumulates and solidifies, and if not cleaned promptly, it affects conveying efficiency and can even cause blockages. Therefore, there is an urgent need for a new feeding device for plastic extruders. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a feeding device for a plastic extruder, solving the problem that existing feeding devices for plastic extruders require finding matching tools, such as wrenches and screwdrivers of specific sizes, before installing the cap. This often necessitates repeatedly searching the toolbox for suitable tools, which consumes time and directly extends the preparation time before feeding. During production, the cap needs to be disassembled and installed every time raw materials are changed or the internal parts of the device are inspected or maintained, severely affecting the continuity and efficiency of production. Furthermore, the disassembly and cleaning of the screw conveyor is not convenient. The screw conveyor is the core component of the feeding device, and its surface easily retains material, especially when processing highly viscous plastic raw materials. The residual material gradually accumulates and solidifies; if not cleaned in time, it will affect conveying efficiency and even cause blockages.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a feeding device for a plastic extruder, comprising a barrel, a slide rod installed on the inner wall of the barrel, a return spring installed on the outer wall of the slide rod, a fixing chamber opened on the inner wall of the barrel, a slot opened on the inner wall of the barrel, a protective cover installed on the top of the barrel, and an insert block fixedly connected to the side wall of the protective cover.

[0006] A transfer chamber is fixedly connected to the bottom of the material cylinder, a drive motor is fixedly connected to the side wall of the transfer chamber, a rotating rod is fixedly connected to the drive motor via a coupling, an insert plate is fixedly connected to the side wall of the rotating rod, a handle is threaded to one end of the rotating rod, and a screw conveyor is installed on the outer wall of the rotating rod.

[0007] Preferably, the return spring is sleeved with the slide rod, and the slide rod is movably connected to the material cylinder.

[0008] Preferably, the inserts are symmetrically arranged around the central axis of the protective cover, and the protective cover is engaged with the material cylinder.

[0009] Preferably, the fixing chamber and slot are matched in size with the insert block, and the insert block is engaged with the fixing chamber.

[0010] Preferably, the inner wall of the screw conveyor is slotted, and the screw conveyor is connected to the rotating rod via a plate.

[0011] Preferably, the screw conveyor forms a rotating structure with the transmission chamber via a rotating rod, and the rotating rod and the transmission chamber are movably connected.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, through the setting of a material cylinder, sliding rod, return spring, fixed chamber, slot, protective cover and insert block, allows the material to be loaded quickly and easily. By pressing down on the protective cover, the sliding rod slides downward, at which point the return spring is compressed by the pressure of the sliding rod, causing the insert block to completely disengage from the fixed chamber. Then, the protective cover is rotated, causing the insert block installed on the protective cover to rotate to the position aligned with the slot. Then, the return spring pushes the sliding rod upward, pushing the insert block into the slot. Finally, the protective cover is pulled out. The protective cover can be removed quickly and easily without the use of tools, thus improving the convenience of the device. 2. This utility model uses a rotating rod, a insert plate, a handle, and a screw conveyor. By rotating the handle to unlock the thread, the handle is removed from the rotating rod, and then the screw conveyor is pulled outward to move along the insert plate until the screw conveyor is completely detached from the rotating rod. The screw conveyor can be removed without the use of tools, which facilitates the cleaning of the screw conveyor and the transfer chamber. Attached Figure Description

[0013] Figure 1This is a perspective view of the present utility model; Figure 2 This is a schematic diagram of the disassembly method of the protective cover of this utility model; Figure 3 This is a schematic diagram of the internal components of the transmission chamber of this utility model; Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0014] In the diagram: 1. Material cylinder; 2. Slide rod; 3. Return spring; 4. Fixed chamber; 5. Slot; 6. Protective cover; 7. Insert block; 8. Transfer chamber; 9. Drive motor; 10. Rotating rod; 11. Insert plate; 12. Handle; 13. Screw conveyor. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0016] The embodiments of this utility model will be described below based on its overall structure.

[0017] Please see Figures 1-4 A feeding device for a plastic extruder includes a barrel 1, a slide rod 2 installed on the inner wall of the barrel 1, a return spring 3 installed on the outer wall of the slide rod 2, a fixed chamber 4 and a slot 5 formed on the inner wall of the barrel 1, a protective cover 6 installed on the top of the barrel 1, and an insert block 7 fixedly connected to the side wall of the protective cover 6. The return spring 3 is sleeved with the slide rod 2, and the slide rod 2 is movably connected to the barrel 1. The insert blocks 7 are symmetrically arranged about the central axis of the protective cover 6, and the protective cover 6 is engaged with the barrel 1. The dimensions of the fixed chamber 4 and the slot 5 match those of the insert blocks 7, and the insert blocks 7 are engaged with the fixed chamber 4. When it is necessary to open the protective cover 6 for feeding, the operator first holds the edge of the protective cover 6 and presses it down, causing the slide bar 2 to slide down. At this time, the return spring 3 is compressed by the pressure of the slide bar 2. After the insert 7 is completely disengaged from the fixed chamber 4, the operator rotates the protective cover 6 so that the insert 7 installed on the protective cover 6 is rotated to the position aligned with the slot 5. Then, the return spring 3 releases the stored elastic potential energy and pushes the slide bar 2 upward, so that the insert 7 is accurately pushed into the slot 5. Then the protective cover 6 can be pulled out from the material cylinder 1 to carry out the feeding operation.

[0018] Please see Figures 1-4A feeding device for a plastic extruder includes a transfer chamber 8 fixedly connected to the bottom of a barrel 1. A drive motor 9 is fixedly connected to the side wall of the transfer chamber 8. The drive motor 9 is fixedly connected to a rotating rod 10 via a coupling. An insert plate 11 is fixedly connected to the side wall of the rotating rod 10. A handle 12 is threadedly connected to one end of the rotating rod 10. A screw conveyor 13 is installed on the outer wall of the rotating rod 10. The inner wall of the screw conveyor 13 is slotted, and the screw conveyor 13 is inserted into the rotating rod 10 via the insert plate 11. The screw conveyor 13 and the transfer chamber 8 form a rotating structure through the rotating rod 10, and the rotating rod 10 and the transfer chamber 8 are movably connected. When using the device, if it is necessary to clean the screw conveyor 13 and the transfer chamber 8, first rotate the handle 12 to gradually loosen the threaded connection between the handle 12 and the rotating rod 10. With continuous rotation, the thread is completely unlocked, the handle 12 is removed from the rotating rod 10, and then the screw conveyor 13 is pulled outward. Under the action of tension, the screw conveyor 13 moves slowly along the insert plate 11 until the screw conveyor 13 is completely detached from the rotating rod 10 without the use of tools, thus facilitating the cleaning of the screw conveyor 13 and the transfer chamber 8.

[0019] Working principle: In use, first move the device to the appropriate position, then press down on the protective cover 6, causing the slide rod 2 to slide downwards, simultaneously compressing the return spring 3, so that the slide rod 2 completely disengages from the fixed chamber 4. Then rotate the protective cover 6 to align the insert 7 with the slot 5. Then, use the return spring 3 to push the slide rod 2 upwards, pushing it into the slot 5. Then, pull out the protective cover 6, and then put the material into the material cylinder 1 and transfer it to the transfer chamber 8 for feeding. At the same time, start the drive motor 9, and use the output shaft of the drive motor 9 to drive the rotating rod 1. 0, and synchronously drive the screw conveyor 13 to rotate to transport materials. When it is necessary to clean the screw conveyor 13 and the transfer chamber 8, simply turn the handle 12 to unlock the thread, then remove the handle 12 from the rotating rod 10, and then pull the screw conveyor 13 outward to move the screw conveyor 13 along the insert plate 11 until the screw conveyor 13 is completely disengaged from the rotating rod 10. Then remove the screw conveyor 13. This completes the use of the device. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0020] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A feeding device for a plastic extruder, comprising a feed cylinder (1), characterized in that: The inner wall of the material cylinder (1) is equipped with a slide rod (2), the outer wall of the slide rod (2) is equipped with a return spring (3), the inner wall of the material cylinder (1) is provided with a fixing chamber (4), the inner wall of the material cylinder (1) is provided with a slot (5), the top of the material cylinder (1) is equipped with a protective cover (6), and the side wall of the protective cover (6) is fixedly connected with a plug (7). The bottom of the material cylinder (1) is fixedly connected to a transmission chamber (8), and the side wall of the transmission chamber (8) is fixedly connected to a drive motor (9). The drive motor (9) is fixedly connected to a rotating rod (10) via a coupling. The side wall of the rotating rod (10) is fixedly connected to a plate (11). One end of the rotating rod (10) is threadedly connected to a handle (12), and a screw conveyor (13) is installed on the outer wall of the rotating rod (10).

2. The feeding device for a plastic extruder according to claim 1, characterized in that: The reset spring (3) is sleeved with the slide rod (2), and the slide rod (2) is movably connected to the material cylinder (1).

3. The feeding device for a plastic extruder according to claim 1, characterized in that: The insert (7) is symmetrically arranged with respect to the central axis of the protective cover (6), and the protective cover (6) is engaged with the material cylinder (1).

4. The feeding device for a plastic extruder according to claim 1, characterized in that: The fixed chamber (4) and slot (5) are matched in size with the insert (7), and the insert (7) is engaged with the fixed chamber (4).

5. The feeding device for a plastic extruder according to claim 1, characterized in that: The inner wall of the screw conveyor (13) is slotted, and the screw conveyor (13) is connected to the rotating rod (10) by insert plate (11).

6. The feeding device for a plastic extruder according to claim 1, characterized in that: The screw conveyor (13) forms a rotating structure with the transmission chamber (8) through the rotating rod (10), and the rotating rod (10) is movably connected to the transmission chamber (8).

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