A material level detection device for a high speed extruder barrel

Abstract

The utility model discloses a kind of material level detection devices of high-speed extruder barrel, including barrel, multiple mounting holes are equidistantly provided on the back of barrel, and two mounting holes are respectively installed permanent-magnetic material leveler in it, and remaining mounting holes are respectively installed plugging column;The detection end of the permanent-magnetic material leveler is placed in the inside of barrel, and one end of the plugging column is placed in the inside of barrel and is in the same horizontal line with the inner wall of barrel, mounting hole, plugging column and other structures designed in the application, can be directly disassembled and assembled for permanent-magnetic material leveler on the back of barrel, it can be realized by screwing mode, it can be realized without hand is inserted into the inside of barrel when disassembling, and it is directly operated on the back of barrel, and operation space is larger, more conducive to the quick disassembly and assembly of permanent-magnetic material leveler, save operation time, prompt operation efficiency, shorten the downtime of production line.

Description

Technical Field

[0001] This utility model relates to the field of material level detection technology for extruder barrels, specifically a material level detection device for a high-speed extruder barrel. Background Technology

[0002] In the cable manufacturing process, PVC material needs to be fed through a barrel into a high-speed extruder for heating and extrusion. To determine whether there is a shortage or absence of material in the barrel, existing technology typically requires the installation of material level sensors within the barrel. The PVC barrel contains two level sensors, one at the top and one at the bottom, to detect the shortage or absence of material. When the absence sensor (located at the bottom of the barrel) detects no material, it triggers a feeder to replenish the barrel until the shortage sensor (located at the top of the barrel) detects material, at which point replenishment stops. This achieves the goal of controlling the extruder's operation by detecting the shortage or absence of material through the level sensors.

[0003] In existing technologies, material level detection devices (material level sensors) are mostly installed directly in a fixed position inside the material cylinder. Because the material cylinder is relatively deep, when the sensor malfunctions or is damaged, the operator needs to reach into the material cylinder from the top to disassemble and install the sensor. This results in a small operating space, making operation inconvenient and preventing the sensor from being quickly disassembled and installed to clear the fault.

[0004] Therefore, in response to the technical problems existing in the prior art as mentioned above, we have designed a material level detection device for a high-speed extruder barrel. Utility Model Content

[0005] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a material level detection device for a high-speed extruder barrel, comprising a barrel, wherein multiple mounting holes are equally spaced on the back of the barrel, and permanent magnet level gauges are respectively installed in two of the mounting holes, and sealing columns are respectively installed in the remaining mounting holes; the detection end of the permanent magnet level gauge is placed inside the barrel, and one end of the sealing column is placed inside the barrel and is at the same horizontal level as the inner wall of the barrel.

[0007] As a further embodiment of this utility model: a threaded groove is also provided on the inner wall of the mounting hole, and an annular sealing ring is fixed at one end of the inner wall of the threaded groove.

[0008] As a further embodiment of this utility model: an annular fixing ring is fixed on the surface of the sealing column, and a threaded path adapted to the threaded groove is opened on the fixing ring. The other end of the sealing column is integrally formed with a hexagonal screw block placed outside the material cylinder.

[0009] As a further embodiment of this utility model: a second annular fixing ring is fixed on the surface of the permanent magnet leveler, and a threaded path adapted to the threaded groove is opened on the second fixing ring. The other end of the permanent magnet leveler is placed outside the material cylinder and connected to a signal line.

[0010] As a further embodiment of this utility model: the two permanent magnet levelers are located far apart from each other inside the material cylinder, and the permanent magnet levelers also include a retaining ring fixed to the top of the detection end of the permanent magnet leveler and a swing rod rotatably connected to the inner top wall of the retaining ring.

[0011] As a further embodiment of this utility model: the feed inlet of the barrel is connected to a feeding hopper, and the discharge outlet of the barrel is connected to a high-speed extruder for feeding.

[0012] As a further embodiment of this utility model: the front of the material cylinder has an opening, and a viewing window is fixed inside the opening by screws.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] In this application, the designed mounting holes and sealing columns allow for easy installation and removal of the permanent magnet level gauge directly from the back of the cylinder. This can be achieved simply by twisting, eliminating the need to insert hands into the cylinder during installation and removal. Furthermore, the operation is performed directly from the back of the cylinder, providing more operating space and facilitating rapid installation and removal of the permanent magnet level gauge. This saves operating time, improves operational efficiency, and reduces production line downtime. Additionally, the multiple mounting holes on the cylinder allow for adjustment of the permanent magnet level gauge's installation height according to actual production conditions and requirements, thus enhancing the flexibility of level detection and improving adaptability to various situations. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a front cross-sectional view of the material cylinder of this utility model;

[0017] Figure 3 This is a side sectional view of the material cylinder of this utility model;

[0018] Figure 4 This is a utility model Figure 3 Enlarged structural diagram at point A in the diagram;

[0019] Figure 5 This is a three-dimensional structural diagram of the sealing column of this utility model.

[0020] The reference numerals and names in the figure are as follows:

[0021] 1. Barrel; 2. Opening; 3. Viewing window; 4. Feed hopper; 5. High-speed extruder; 6. Mounting hole; 601. Threaded groove; 7. Sealing column; 701. Tightening block; 702. Fixing ring one; 8. Permanent magnet level gauge; 801. Fixing ring two; 802. Retaining ring; 803. Swing rod; 9. Sealing ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 A material level detection device for a high-speed extruder barrel includes a barrel 1, a feeding hopper 4 connected to the inlet of the barrel 1, and a high-speed extruder 5 connected to the outlet of the barrel 1. Multiple mounting holes 6 are equidistantly arranged on the back of the barrel 1, with permanent magnet level gauges 8 installed in two of the mounting holes 6 and sealing columns 7 installed in the remaining mounting holes 6. The detection end of the permanent magnet level gauge 8 is placed inside the barrel 1, and one end of the sealing column 7 is placed inside the barrel 1 and is level with the inner wall of the barrel 1. The level of the sealing column 7 with the inner wall of the barrel 1 facilitates the sliding of PVC material.

[0024] Please see Figure 3 and Figure 4 In this embodiment, a threaded groove 601 is also provided on the inner wall of the mounting hole 6, and an annular sealing ring 9 is fixed at one end of the inner wall of the threaded groove 601.

[0025] Specifically, multiple mounting holes 6 are used to change the installation height of the permanent magnet leveler 8, the threaded groove 601 is used to screw in the fixing ring 702 and the fixing ring 801, and the sealing ring 9 can improve the sealing performance of the entire mounting hole 6 after screwing in.

[0026] Please see Figure 4 and Figure 5 In this embodiment, an annular fixing ring 702 is fixed on the surface of the sealing column 7. The fixing ring 702 is provided with a threaded path that matches the threaded groove 601. The other end of the sealing column 7 is integrally formed with a hexagonal screw block 701 placed outside the material cylinder 1.

[0027] Specifically, there are multiple sealing columns 7, which are screwed into the mounting holes 6 where there is no permanent magnet leveler 8, so as to seal these mounting holes 6, prevent PVC material leakage, and ensure the integrity of the material cylinder 1.

[0028] Please see Figure 2 , Figure 3 and Figure 4 In this embodiment, a second annular fixing ring 801 is fixed on the surface of the permanent magnet level sensor 8. The second fixing ring 801 has a threaded path adapted to the threaded groove 601. The other end of the permanent magnet level sensor 8 is placed outside the material cylinder 1 and connected to a signal line. The two permanent magnet level sensors 8 are far apart from each other inside the material cylinder 1. The permanent magnet level sensor 8 also includes a retaining ring 802 fixed to the top of the detection end of the permanent magnet level sensor 8 and a swing rod 803 rotatably connected to the inner top wall of the retaining ring 802.

[0029] Specifically, the fixing ring 801 is screwed into the threaded groove 601 to stabilize the entire permanent magnet level device 8, while the retaining ring 802 on the permanent magnet level device 8 can block the PVC material falling from top to bottom to prevent the falling PVC material from directly contacting the detection end of the permanent magnet level device 8. The swing rod 803 can tap back and forth on the detection end of the permanent magnet level device 8 to knock off the PVC material that may be stuck to the body of the permanent magnet level device 8, or to knock off the PVC material that has already stuck to the detection end of the permanent magnet level device 8, further preventing PVC material from sticking to the detection end of the permanent magnet level device 8. The material cylinder 1 is equipped with two permanent magnet level devices 8 at different heights. The upper permanent magnet level device 8 can act as a material shortage sensor, and the lower permanent magnet level device 8 can act as a material sensor. When used together, they can achieve a better material replenishment effect.

[0030] Please see Figure 1 and Figure 3 In this embodiment, the front of the material cylinder 1 has an opening 2, and a viewing window 3 is fixed inside the opening 2 by screws.

[0031] Specifically, by setting a viewing window 3 on the front of the material cylinder 1, the staff can easily observe the situation inside the material cylinder 1 through the viewing window 3.

[0032] When in use: If the permanent magnet level sensor 8 malfunctions and requires disassembly and maintenance, the operator can directly go to the back of the cylinder 1 and twist the permanent magnet level sensor 8, thereby unscrewing the fixing ring 801 on the permanent magnet level sensor 8 from the corresponding threaded groove 601. This makes it easy to remove the entire permanent magnet level sensor 8 from the corresponding mounting hole 6. After the permanent magnet level sensor 8 is maintained (or it can be directly replaced with a functional permanent magnet level sensor 8 for quick production recovery), the maintained permanent magnet level sensor 8 can be screwed back into the mounting hole 6. The threaded connection between the fixing ring 801 and the threaded groove 601 achieves tightening and ensures that the fixing ring 801 and the sealing ring 9 fit tightly, improving the sealing performance.

[0033] If the height of the permanent magnet level device 8 needs to be adjusted according to the production situation, the operator can directly unscrew the corresponding height of the sealing column 7 so that the sealing column 7 is unscrewed from the mounting hole 6, and then screw the permanent magnet level device 8 into the mounting hole 6. Then, the unscrewed sealing column 7 is put into the original mounting hole 6 where the permanent magnet level device 8 was installed, thus avoiding the hollowness of the mounting hole 6.

[0034] It should be noted that, through observation during actual use, we found that after the PVC material is dried, it generates a certain amount of static electricity when moving and rubbing within the pipeline. Simultaneously, during its descent into the barrel 1, it continues to rub against the surface of the level sensor, generating static electricity that adheres to the sensor's detection end. When material adheres to the sensor's detection end, it obstructs and affects the sensor's sensing, causing it to misjudge that there is still material in the barrel 1. Consequently, when the barrel 1 is actually empty, it will not replenish material or trigger an alarm, leading to the emptying of the PVC material in the barrel 1 and affecting the normal operation of the subsequent high-speed extruder 5. In this application, the traditional capacitive level sensor used in the barrel 1 (currently, most technologies use sensors of the CR30CF10DPO-E2 or CR30CF10DNO-E2 model) is redesigned into the permanent magnet level sensor 8 used in this application. On the one hand, the retaining ring 802 can be used to block the PVC material falling from top to bottom to a certain extent, so as to avoid the PVC material rubbing against the detection end of the permanent magnet level sensor 8 during the falling process, thereby reducing the possibility of material sticking to the detection end of the permanent magnet level sensor 8. At the same time, the swing rod 803 on the permanent magnet level sensor 8 can beat back and forth under electromagnetic action, which can knock off the PVC material stuck to the permanent magnet level sensor 8 through vibration, further preventing abnormalities caused by material sticking to the permanent magnet level sensor 8. The permanent magnet level sensor 8 adopts a blade type permanent magnet level sensor of model YCK-M30 or model YCK-M18, which can effectively avoid the problem of the detection end being easily blocked faced by traditional level sensors. The blade type permanent magnet level sensor of model YCK-M30 or model YCK-M18 is a public technology and can be obtained commercially. Therefore, the permanent magnet level sensor 8 will not be described in detail in this application.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A material level detection device for a high-speed extruder barrel, comprising a barrel (1), characterized in that, The back of the material cylinder (1) is provided with multiple mounting holes (6) at equal intervals, and two of the mounting holes (6) are respectively equipped with permanent magnet levelers (8), and the remaining mounting holes (6) are respectively equipped with sealing columns (7); The detection end of the permanent magnet level gauge (8) is placed inside the material cylinder (1), and one end of the sealing column (7) is placed inside the material cylinder (1) and is at the same horizontal level as the inner wall of the material cylinder (1).

2. The material level detection device for a high-speed extruder barrel according to claim 1, characterized in that, The inner wall of the mounting hole (6) is also provided with a threaded groove (601), and an annular sealing ring (9) is fixed at one end of the inner wall of the threaded groove (601).

3. The material level detection device for a high-speed extruder barrel according to claim 1, characterized in that, The surface of the sealing column (7) is fixed with an annular fixing ring (702), and the fixing ring (702) is provided with a threaded path that matches the threaded groove (601). The other end of the sealing column (7) is integrally formed with a hexagonal screw block (701) placed outside the material cylinder (1).

4. The material level detection device for a high-speed extruder barrel according to claim 1, characterized in that, The permanent magnet level device (8) has an annular fixing ring 2 (801) fixed on its surface. The fixing ring 2 (801) has a threaded path that matches the threaded groove (601). The other end of the permanent magnet level device (8) is placed outside the material cylinder (1) and connected to a signal line.

5. The material level detection device for a high-speed extruder barrel according to claim 1, characterized in that, The two permanent magnet level gauges (8) are located far apart from each other inside the barrel (1). The permanent magnet level gauge (8) also includes a retaining ring (802) fixed to the top of the detection end of the permanent magnet level gauge (8) and a swing rod (803) rotatably connected to the inner top wall of the retaining ring (802).

6. The material level detection device for a high-speed extruder barrel according to claim 1, characterized in that, The feed inlet of the cylinder (1) is connected to a feeding hopper (4), and the discharge outlet of the cylinder (1) is connected to a high-speed extruder (5) for feeding.

7. The material level detection device for a high-speed extruder barrel according to claim 1, characterized in that, The front of the material cylinder (1) has an opening (2), and a viewing window (3) is fixed inside the opening (2) by screws.

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