Material shortage alarm device of extruder

Abstract

The utility model relates to the technical field of extruders, in particular to a material shortage alarm device of an extruder, which comprises a feeding barrel, a baffle plate, a plugging mechanism and a rotation stopping material level switch, a first mounting opening and a second mounting opening are formed in one side wall of the feeding barrel; the two groups of baffles are symmetrically mounted on the two sides of the first mounting opening and are connected with the feeding barrel; the bottom end of the blocking mechanism abuts against the bottom end of the first mounting opening. And the displacement of the rotation stopping material level switch can be adjusted along the height direction of the feeding barrel through the telescopic adjustment of the plugging mechanism. According to the utility model, the plugging mechanism is arranged so as to adapt to the installation of the feeding barrels with different depths, the application range is wider, the plugging mechanism can drive the rotation-preventing material level switch to be adjusted along the height of the feeding barrel so as to drive the rotation-preventing material level switch to move to a position near a top end feeding hole of the feeding barrel, so that workers can conveniently overhaul the rotation-preventing material level switch, and the maintenance efficiency is improved. And convenience is provided for use.

Description

Technical Field

[0001] The utility model relates to the technical field of extruders, in particular to a material shortage alarm device for an extruder. Background Art

[0002] The raw material mixing barrel of the extruder is usually equipped with a corresponding material shortage alarm device to promptly remind the staff to add extrusion raw materials to the mixing barrel.

[0003] Chinese patent application number CN217169669U discloses a low-material alarm device for a plastic extruder. This device relates to the field of plastic extruder technology. The device comprises a main body mounted on a mixing barrel assembly of the plastic extruder. The mixing barrel assembly includes a mixing barrel and a barrel cover. A paddle-type level switch is mounted on the sidewall of the mixing barrel. The paddle-type level switch has a blade at one end, which is covered by a protective cover. One end of the protective cover is connected to the inner wall of the mixing barrel. A speaker assembly is mounted on a mounting base, a rotating base is mounted on a mounting leg, and a tweeter is mounted on a connecting rod. The tweeter is primarily used to emit a warning sound. This device provides a high-performance low-material alarm device for a plastic extruder.

[0004] However, the above-mentioned disclosed solution has the following shortcomings: when the extruder model is larger, the size of the mixing barrel equipped needs to be increased accordingly, and the paddle level switch is installed at the bottom of the mixing barrel. When the paddle level switch is damaged and needs to be repaired, it is inconvenient to disassemble and repair it, which brings inconvenience to use. Utility Model Content

[0005] The utility model aims to solve the problems existing in the background technology and proposes an extruder material shortage alarm device.

[0006] The technical solution of the utility model is as follows: an extruder material shortage alarm device comprises a feed barrel, a side wall of which is provided with a first mounting port and a second mounting port, the second mounting port being connected to the first mounting port; two groups of baffles are provided, the two groups of baffles are symmetrically mounted on both sides of the first mounting port and connected to the feed barrel; a blocking mechanism is detachably mounted between the first mounting port and the second mounting port, the bottom end of the blocking mechanism abuts against the bottom end of the first mounting port; and a rotary paddle material level switch is detachably mounted at the bottom end of the blocking mechanism, and the rotary paddle material level switch can be displaced and adjusted along the height direction of the feed barrel through the telescopic adjustment of the blocking mechanism;

[0007] Preferably, the sealing mechanism includes a mounting seat, which is slidably connected to the second mounting port, and bolts are installed between the two ends of the mounting seat and the threaded grooves on the second mounting port; an upper sealing plate, which is connected to the bottom end of the mounting seat; a middle sealing plate, which is slidably connected to the upper sealing plate; and a lower sealing plate, which is slidably connected to the middle sealing plate, and the rotary level switch is installed on the lower sealing plate, and a socket is provided at the bottom end of the lower sealing plate, which corresponds to the first limiting mechanism, and the left and right side walls of the upper sealing plate, the middle sealing plate and the lower sealing plate are respectively slidably connected to the two groups of baffles, and the bottom end of the lower sealing plate abuts against the bottom end of the first mounting port.

[0008] Preferably, a slide groove is opened on the outer wall of the middle sealing plate and the upper sealing plate, and a vertical pole is installed inside the slide groove. The top of the lower sealing plate and the middle sealing plate are connected with a slider, which is slidably connected to the corresponding slide groove and the slider is slidably sleeved on the outside of the corresponding vertical pole.

[0009] Preferably, the middle blocking plates are provided in several groups, and the blocking plates in the several groups are connected in sequence through their respective corresponding sliders, slide grooves and vertical rods.

[0010] Preferably, a second limiting mechanism is provided on the upper sealing plate, and the second limiting mechanism includes an adjusting rod, which passes through the top of the upper sealing plate and is movably connected to the upper sealing plate; a limiting seat, which is connected to the bottom end of the adjusting rod; the bottom end of the limiting seat is slidingly connected to the lower sealing plate; and a first spring, which is movably sleeved on the outside of the adjusting rod, the top end of the first spring is connected to the top end of the adjusting rod, and the bottom end of the first spring is movably connected to the upper sealing plate.

[0011] Preferably, a first limiting mechanism is provided on the outer wall of the feed barrel, which is used to connect the bottom end of the sealing mechanism with the feed barrel. The first limiting mechanism includes a horizontal plate, both ends of which are provided with elastic telescopic rods; and an insertion rod, which is installed on the inner wall of the horizontal plate, and the insertion rod is slidably plugged into the socket.

[0012] Compared with the existing technology, the above-mentioned technical scheme of the utility model has the following beneficial technical effects: the utility model is easy to adapt to the installation of feed barrels of different depths through the setting of the blocking mechanism, and has a wider range of applications. The blocking mechanism can drive the rotary resistance level switch to adjust along the height of the feed barrel, so as to drive it to move to the vicinity of the top feed port of the feed barrel, thereby facilitating the workers to inspect and repair the rotary resistance level switch, providing convenience for use. The setting of the first limiting mechanism facilitates the improvement of the connection stability between the bottom end of the blocking mechanism and the first mounting port to avoid leakage of extruded materials. The setting of the second limiting mechanism facilitates the limiting of the blocking mechanism when it is contracted, which facilitates the inspection of the rotary resistance level switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2This is a schematic diagram of the connection between the first limiting mechanism and the feed barrel of the utility model;

[0015] Figure 3 This is a schematic structural diagram of the blocking mechanism of the present utility model;

[0016] Figure 4 It is a schematic diagram of the connection between the second limiting mechanism and the upper blocking plate of the utility model.

[0017] Figure numerals: 1. Feed barrel; 101. First mounting port; 102. Second mounting port; 2. Baffle; 3. Horizontal plate; 301. Insert rod; 302. Elastic telescopic rod; 4. Mounting seat; 5. Upper blocking plate; 501. Adjusting rod; 502. Limiting seat; 503. First spring; 6. Middle blocking plate; 601. Slide groove; 602. Vertical rod; 7. Lower blocking plate; 701. Insert hole; 702. Slider; 8. Rotary level switch. DETAILED DESCRIPTION

[0018] Example 1

[0019] like Figures 1 to 4 As shown, the utility model proposes an extruder material shortage alarm device, comprising a feed barrel 1, a baffle 2, a blocking mechanism and a rotary damper material level switch 8; a first mounting port 101 and a second mounting port 102 are provided on one side wall of the feed barrel 1, and the second mounting port 102 is connected to the first mounting port 101; two groups of baffles 2 are provided, and the two groups of baffles 2 are symmetrically mounted on both sides of the first mounting port 101 and connected to the feed barrel 1; the blocking mechanism is detachably mounted between the first mounting port 101 and the second mounting port 102, and the bottom end of the blocking mechanism is in contact with the bottom end of the first mounting port 101; the rotary damper material level switch 8 is detachably mounted at the bottom end of the blocking mechanism, and the rotary damper material level switch 8 can be displaced and adjusted along the height direction of the feed barrel 1 through the telescopic adjustment of the blocking mechanism.

[0020] Furthermore, the blocking mechanism includes a mounting seat 4, an upper blocking plate 5, a middle blocking plate 6 and a lower blocking plate 7; the mounting seat 4 is slidably connected to the second mounting port 102, and bolts are installed between the two ends of the mounting seat 4 and the threaded grooves on the second mounting port 102; the upper blocking plate 5 is connected to the bottom end of the mounting seat 4, and the upper blocking plate 5 is set to an L shape; the middle blocking plate 6 is slidably connected to the upper blocking plate 5; the lower blocking plate 7 is slidably connected to the middle blocking plate 6, and the rotary level switch 8 is installed on the lower blocking plate On the plate 7, a socket 701 is provided at the bottom end of the lower sealing plate 7, and the socket 701 corresponds to the first limit mechanism. The upper sealing plate 5, the middle sealing plate 6 and the left and right side walls of the lower sealing plate 7 are respectively slidably connected with the two groups of baffles 2. The bottom end of the lower sealing plate 7 abuts against the bottom end of the first mounting port 101. The lower sealing plate 7 is composed of two groups of L-shaped plates. The rotary resistance level switch 8 is installed at the bottom end of one group of L-shaped plates, and the socket 701 is opened at the bottom end of the other group of L-shaped plates.

[0021] Furthermore, a sliding groove 601 is provided on the outer wall of the middle sealing plate 6 and the upper sealing plate 5, and a vertical rod 602 is installed inside the sliding groove 601. The top of the lower sealing plate 7 and the middle sealing plate 6 are connected with a slider 702. The slider 702 is slidably connected to the corresponding sliding groove 601 and the slider 702 is slidably sleeved on the outside of the corresponding vertical rod 602 to prevent the middle sealing plate 6 from being separated from the upper sealing plate 5 and to prevent the lower sealing plate 7 from being separated from the middle sealing plate 6, thereby improving the installation stability.

[0022] Furthermore, a second limiting mechanism is provided on the upper blocking plate 5, and the second limiting mechanism includes an adjusting rod 501, a limiting seat 502 and a first spring 503; the adjusting rod 501 passes through the top of the upper blocking plate 5 and is movably connected to the upper blocking plate 5; the limiting seat 502 is connected to the bottom end of the adjusting rod 501, and the limiting seat 502 is set to be C-shaped; the bottom end of the limiting seat 502 is slidingly connected to the lower blocking plate 7; the first spring 503 is movably sleeved on the outside of the adjusting rod 501, the top end of the first spring 503 is connected to the top end of the adjusting rod 501, and the bottom end of the first spring 503 is movably connected to the upper blocking plate 5.

[0023] In this embodiment, the mounting seat 4 is connected to the second mounting opening 102 by bolts, and the middle blocking plate 6 and the lower blocking plate 7 are slid downward along the baffle 2 in sequence until the bottom end of the lower blocking plate 7 abuts against the bottom end of the first mounting opening 101, and then the anti-rotation material level switch 8 on the lower blocking plate 7 is installed at a suitable depth in the feed barrel 1, and a proper amount of extruded material is added to the inside of the feed barrel 1, and the internal material usage can be monitored by the anti-rotation material level switch 8. It should be noted that the tweeter electrically connected to the anti-rotation material level switch 8 is not drawn, and can be installed in a suitable position according to actual usage. The specific principle is recorded in detail in the patent with authorization announcement number CN217169669U, and will not be repeated here. By blocking the two sets of baffles 2, the internal material of the feed barrel 1 is prevented from leaking through the connection between the blocking mechanism and the first mounting opening 101. When it is necessary to When the rotary material level switch 8 continues to be repaired, the slider 702 on the lower blocking plate 7 slides upward along the slide groove 601 on the middle blocking plate 6, and the slider 702 on the middle blocking plate 6 slides upward along the slide groove 601 on the upper blocking plate 5, and then the lower blocking plate 7 drives the rotary material level switch 8 to slide to the appropriate height of the feed barrel 1. At this time, the adjusting rod 501 is pressed down and rotated along the upper blocking plate 5, the first spring 503 is compressed, and the adjusting rod 501 drives the limit seat 502 to rotate until the bottom end of the limit seat 502 slides and abuts against the bottom end of the top of the lower blocking plate 7, and the adjusting rod 501 is released. The limit seat 502 is driven upward under the elastic recovery action of the first spring 503, and then the lower blocking plate 7 is limit-connected with the upper plate 5. At this time, the rotary material level switch 8 is driven to the vicinity of the opening of the feed barrel 1, which is convenient for workers to repair it.

[0024] Example 2

[0025] like Figure 2 and Figure 4 As shown, the present invention proposes an extruder material shortage alarm device. Compared with the first embodiment, the middle blocking plates 6 are provided in several groups, and the middle blocking plates 6 in the several groups are connected in sequence through their respective corresponding sliders 702, slide grooves 601 and vertical rods 602.

[0026] In this embodiment, the depth of the feed barrel 1 can be adjusted and an appropriate number of middle sealing plates 6 can be selected for connection and use, which ultimately facilitates the movement of the lowest end rotary level switch 8 to a higher position in the feed barrel 1 for easy maintenance by workers.

[0027] Example 3

[0028] like Figure 1 、 Figure 2 and Figure 4 As shown, the present invention proposes an extruder material shortage alarm device. Compared with the first embodiment, a first limiting mechanism is provided on the outer wall of the feed barrel 1, which is used to connect the bottom end of the blocking mechanism with the feed barrel 1. The first limiting mechanism includes a horizontal plate 3 and an insertion rod 301; elastic telescopic rods 302 are provided at both ends of the horizontal plate 3, and the elastic telescopic rod 302 is composed of a telescopic rod and a second spring sleeved on the outside thereof; the insertion rod 301 is installed on the inner wall of the horizontal plate 3, and the insertion rod 301 is slidably plugged into the socket 701.

[0029] In this embodiment, the handheld horizontal plate 3 is moved away from the feed barrel 1. At this time, the elastic telescopic rod 302 is stretched, and the insertion rod 301 is moved away from the feed barrel 1. When the lower sealing plate 7 in the sealing mechanism abuts against the bottom end of the first mounting port 101, the horizontal plate 3 is released and the elastic force recovery action of the elastic telescopic rod 302 drives the insertion rod 301 to be inserted into the socket 701, so that the bottom end of the sealing mechanism can be stably connected to the bottom end of the first mounting port 101 to avoid loosening and leakage of raw materials inside the feed barrel 1.

[0030] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. An extruder material shortage alarm device, characterized in that: include A feed barrel (1) has a first mounting opening (101) and a second mounting opening (102) formed on one side wall thereof, wherein the second mounting opening (102) is connected to the first mounting opening (101); Baffles (2) are provided in two groups, and the two groups of baffles (2) are symmetrically installed on both sides of the first installation port (101) and connected to the feed barrel (1); A blocking mechanism is detachably mounted between the first mounting opening (101) and the second mounting opening (102), with the bottom end of the blocking mechanism abutting against the bottom end of the first mounting opening (101); and a paddle-rotating material level switch (8), which is detachably mounted at the bottom end of the blocking mechanism. The paddle-rotating material level switch (8) can be adjusted in displacement along the height direction of the feed barrel (1) through telescopic adjustment of the blocking mechanism; 2. The extruder material shortage alarm device according to claim 1, characterized in that: Blocking mechanisms include A mounting seat (4) is slidably connected to the second mounting opening (102), with bolts installed between the two ends of the mounting seat (4) and the threaded grooves on the second mounting opening (102); An upper sealing plate (5) connected to the bottom end of the mounting seat (4); a middle blocking plate (6) which is slidably connected to the upper blocking plate (5); and a lower blocking plate (7) which is slidably connected to the middle blocking plate (6). The rotary level switch (8) is mounted on the lower blocking plate (7). A socket (701) is provided at the bottom end of the lower blocking plate (7). The socket (701) corresponds to the first limiting mechanism. The left and right side walls of the upper blocking plate (5), the middle blocking plate (6) and the lower blocking plate (7) are slidably connected to the two groups of baffles (2) respectively. The bottom end of the lower blocking plate (7) abuts against the bottom end of the first mounting opening (101).

3. The extruder material shortage alarm device according to claim 2, characterized in that: The outer walls of the middle blocking plate (6) and the upper blocking plate (5) are both provided with a sliding groove (601), a vertical rod (602) is installed inside the sliding groove (601), and the top of the lower blocking plate (7) and the middle blocking plate (6) are both connected with a slider (702), the slider (702) is slidably connected to the corresponding sliding groove (601), and the slider (702) is slidably sleeved on the outside of the corresponding vertical rod (602).

4. The extruder material shortage alarm device according to claim 3, characterized in that: The middle blocking plates (6) are provided in a plurality of groups, and the middle blocking plates (6) in the plurality of groups are connected in sequence through the corresponding sliders (702), the slide grooves (601) and the vertical rods (602).

5. The extruder material shortage alarm device according to claim 4, characterized in that: A second limiting mechanism is provided on the upper blocking plate (5), and the second limiting mechanism includes An adjusting rod (501) passes through the top of the upper sealing plate (5) and is movably connected to the upper sealing plate (5); The limiting seat (502) is connected to the bottom end of the adjusting rod (501); the bottom end of the limiting seat (502) is slidably connected to the lower blocking plate (7); And a first spring (503) is movably sleeved on the outside of the adjusting rod (501), the top end of the first spring (503) is connected to the top end of the adjusting rod (501), and the bottom end of the first spring (503) is movably connected to the upper blocking plate (5).

6. The extruder material shortage alarm device according to claim 2, characterized in that: A first limiting mechanism is provided on the outer wall of the feed barrel (1) for connecting the bottom end of the blocking mechanism to the feed barrel (1). The first limiting mechanism includes A horizontal plate (3) with elastic telescopic rods (302) at both ends; And an insertion rod (301) is installed on the inner side wall of the horizontal plate (3), and the insertion rod (301) is slidably plugged into the insertion hole (701).

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