Blockage early warning device for extruder

Abstract

The utility model relates to the technical field of door and window frames, in particular to an extruder blockage early warning device which comprises an extrusion mechanism and an early warning mechanism. The extrusion mechanism and the early warning mechanism are arranged at an interval in the first direction; the early warning mechanism comprises a first frame body, a mounting frame, a proximity switch, a swinging strip and an alarm; the mounting frame is mounted on the first frame body, the mounting frame and the first frame body have a passing space for materials to pass through in a second direction, and the second direction is perpendicular to the first direction; the proximity switch is mounted on the mounting frame; the swing strip is parallel to the third direction, the third direction is perpendicular to the first direction and the second direction, the swing strip is arranged on the side, close to the passing space, of the mounting frame, one end of the swing strip makes contact with the proximity switch, and the swing strip is rotationally connected to the mounting frame; the alarm is electrically connected with the proximity switch. The device has the effects of effectively preventing and timely treating the head blockage of the extruder so as to reduce the damage of the extruder and the waste of materials.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of door and window frames, in particular to an extruder blockage early warning device. BACKGROUND

[0002] Plastic steel profiles and doors and windows are important components of modern buildings, and are a kind of composite material integrating the advantages of plastic and steel. They are widely used due to their aesthetic appearance, durability and energy saving. The material is a component of a plastic steel window and is generally produced by an extruder.

[0003] In related technologies, in order to prevent the occurrence of blockage at the head of the extruder, various measures are usually taken. Common methods include regular inspection and cleaning of the head of the extruder, adjustment of extrusion speed and temperature parameters, optimization of raw material ratio, and addition of a manual baffle at the head of the extruder. These methods can reduce the occurrence of blockage to a certain extent, but still have certain limitations. For example, regular inspection and cleaning require frequent shutdown operations, which increases production costs; adjustment of extrusion speed and temperature parameters requires a high level of technical expertise and the effect is unstable; and the addition of a manual baffle relies on manual operation, which is slow to react and can miss the best opportunity for treatment.

[0004] In view of the related technologies described above, if the blockage at the head of the extruder is not discovered and treated in time, a large amount of material will be concentrated and accumulated, which not only wastes raw materials but also affects the normal operation of the production line, and may even cause damage to the equipment, seriously affecting production efficiency and product quality. Therefore, there is an urgent need for a device that can effectively prevent and timely treat blockage at the head of the extruder to reduce damage to the extruder and waste of material. CONTENT OF THE INVENTION

[0005] In order to effectively prevent and timely treat blockage at the head of the extruder to reduce damage to the extruder and waste of material, the application provides an extruder blockage early warning device.

[0006] The application provides an extruder blockage early warning device, which adopts the following technical scheme:

[0007] An extruder blockage early warning device, comprising an extruding mechanism and an early warning mechanism;

[0008] The extruding mechanism and the early warning mechanism are arranged at intervals along a first direction;

[0009] The early warning mechanism comprises a first frame body, a mounting bracket, a proximity switch, a swing bar and an alarm;

[0010] The mounting bracket is mounted on the first frame body, and the mounting bracket and the first frame body have a passing space for the material to pass through in a second direction, the second direction being perpendicular to the first direction;

[0011] The proximity switch is mounted on the mounting frame.

[0012] The swing bar is parallel to a third direction, the third direction is perpendicular to the first direction and the second direction, the swing bar is arranged on the side of the mounting frame close to the passing space, one end of the swing bar is in contact with the proximity switch, the side of the swing bar close to the passing space has a first gap with the side wall of the mounting frame in the second direction, the swing bar is rotationally connected to the mounting frame, and the swing bar is parallel to the first direction along the rotation axis of the mounting frame.

[0013] The alarm is electrically connected with the proximity switch.

[0014] By adopting the above technical scheme, the material is extruded by the extruding mechanism and transported towards the first frame body, and then passes through the passing space of the mounting frame. The extruding mechanism may be blocked during the extruding process, which may cause waste of the material or damage to the extruding mechanism. Therefore, the early warning mechanism is arranged. When the extruding mechanism is blocked, the material passing through the passing space may be gathered. When the material is accumulated, the width of the material is increased. When the material is accumulated too much, the material may extend into the first gap and contact the swing bar, so as to drive the swing bar to rotate in the first direction. Further, the one end of the swing bar is offset relative to the proximity switch, so that the proximity switch senses the swing of the swing bar and transmits a signal to the alarm to generate an alarm sound, reminding the operator to handle the abnormality as soon as possible, thereby reducing the waste of the material and the damage to the extruding mechanism.

[0015] Optionally, the early warning mechanism further comprises a first rotating shaft, the first rotating shaft is parallel to the first direction, and the first rotating shaft is rotationally connected to the mounting frame and detachably connected to the other end of the swing bar.

[0016] By adopting the above technical scheme, in order to facilitate personnel to disassemble or replace the swing bar, the first rotating shaft and the swing bar are detachably connected, which is convenient for personnel to replace or disassemble.

[0017] Optionally, the extruding mechanism comprises a second frame body and a discharging piece, the discharging piece is mounted on the second frame body, and the discharging piece is provided with a discharging groove for extruding the material in the first direction.

[0018] By adopting the above technical scheme, by arranging the discharging piece, the material is introduced into the passing space on the first frame body from the discharging groove of the treatment arm.

[0019] Optionally, the cleaning assembly further comprises a first cleaning piece, the first cleaning piece is arranged above the mounting frame, and the first cleaning piece is slidingly connected to the mounting frame in the third direction.

[0020] When the material is excessively accumulated, the material is adhered to the mounting frame, affecting the passing of the subsequent material. Therefore, the first cleaning piece is arranged to be slidingly connected to the mounting frame in the third direction, so that the first cleaning piece contacts the mounting frame when sliding in the third direction, and the mounting frame is vibrated, so that the material adhered to the mounting frame is shaken off under the vibration.

[0021] Optionally, the cleaning assembly further comprises an elastic piece and a second mounting seat, the second mounting seat is directly or indirectly connected to the mounting frame and located on the side of the first cleaning piece away from the mounting frame, the elastic piece has a stretching direction parallel to the third direction, the elastic piece is fixedly connected between the second mounting seat and the first cleaning piece, and the elastic piece has a force to drive the first cleaning piece to move away from the mounting frame under recoverable deformation.

[0022] By adopting the above technical scheme, in order to connect the first cleaning piece and the mounting frame, the second mounting seat and the elastic piece are arranged, the first connecting piece can slide in the third direction until contacting the top wall of the mounting frame under the action of the elastic piece, so that the top wall of the mounting frame is vibrated to shake off the material on the mounting frame, and the first cleaning piece can be reset under the action of the elastic piece.

[0023] Optionally, the first driving assembly is arranged above the mounting frame and located on the side of the first cleaning piece away from the mounting frame, the first driving assembly comprises a second rotating shaft and a cam, the second rotating shaft is parallel to the first direction, the second rotating shaft is rotationally connected to the mounting frame, the second rotating shaft is parallel to the first direction along the rotating axis of the mounting frame, the cam is coaxially fixedly sleeved on the second rotating shaft, and the protruding part of the cam contacts the first cleaning piece.

[0024] By adopting the above technical scheme, in order to drive the first cleaning piece to slide in the third direction, the second rotating shaft is rotated to drive the cam to rotate to the protruding part contacting the first cleaning piece, the elastic piece is stretched, and one side of the first cleaning piece contacts the top wall of the mounting frame. When the cam is rotated to the protruding part away from the first cleaning piece, the elastic piece is changed from the stretched state to the normal state, and the first cleaning piece is in a non-contact state with the mounting frame.

[0025] Optionally, the second cleaning piece is arranged, the swing bar and the side wall of the mounting frame have a second gap in the first direction, the second cleaning piece is located in the second gap, one side of the second cleaning piece contacts the side wall of the mounting frame, and the second cleaning piece is slidingly connected to the mounting frame in the third direction.

[0026] By adopting the technical scheme, when the material extruding mechanism is blocked, the material contacts the mounting frame, and if the material is not cleaned in time, the subsequent material passing will be affected, in addition, when the material passes through the passing space, the material adhered to the mounting frame causes the material meeting the requirements to contact the material adhered to the mounting frame, further drives the swing bar to rotate, and the proximity switch is mistakenly touched, therefore, the side of the mounting frame close to the swing bar needs to be cleaned, and for this purpose, the second cleaning piece is slidingly connected to the mounting frame along the third direction to scrape and clean the material adhered to the side wall of the mounting frame.

[0027] Optionally, the second driving assembly further includes a first bevel gear, a second bevel gear and a screw rod, the first bevel gear is coaxially sleeved on the first rotating shaft, the screw rod is parallel to the third direction, the screw rod is rotationally connected to the mounting frame, the screw rod is parallel to the third direction along the rotating axis of the mounting frame, the second bevel gear is coaxially sleeved on the screw rod, and the second bevel gear is engaged with the first bevel gear, and the second cleaning piece slides along the length direction of the screw rod.

[0028] By adopting the technical scheme, in order to drive the second cleaning piece to slide along the third direction, the second driving assembly is arranged, when the second rotating shaft is rotated, the first bevel gear is driven to rotate, the first bevel gear drives the second bevel gear to rotate, and further drives the screw rod to rotate, thereby driving the second cleaning piece to slide along the length direction of the screw rod, so that the second cleaning piece scrapes and cleans the material adhered to the side wall of the mounting frame.

[0029] Optionally, the first driving assembly further includes a handle, and the handle is coaxially sleeved on the second rotating shaft.

[0030] By adopting the technical scheme, the handle is arranged, and the personnel can conveniently rotate the handle to drive the second rotating shaft to rotate.

[0031] In summary, the present application has at least one of the following beneficial technical effects:

[0032] 1. The present application is arranged with the material extruding mechanism and the early warning mechanism, the material is extruded by the material extruding mechanism and transported to the first frame body, and the material further passes through the passing space of the mounting frame, if the material extruding mechanism is blocked, the material will be gathered when passing through the passing space, the width of the material accumulation is increased, and when the material accumulation is too much, the material will extend into the first gap to contact the swing bar, drive the swing bar to rotate along the first direction, further cause the position of one end of the swing bar to be deviated from the proximity switch, so that the swing bar is swung and the proximity switch is touched, a signal is transmitted to the siren to produce an alarm sound, reminding the operator to handle the abnormality as soon as possible, reducing the waste of material and the damage of the material extruding mechanism;

[0033] 2. The first cleaning piece is arranged above the mounting frame and can slide in the third direction, so that when the first cleaning piece contacts the mounting frame, vibration is generated on the mounting frame to shake off the material adhered to the mounting frame;

[0034] 3. The second cleaning piece is arranged between the swing bar and the mounting frame, and slides in the third direction to clean and scrape off the material adhered to the mounting frame, further reducing the accumulation and adhesion of the material on the mounting frame and reducing the influence on subsequent material transportation. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 is a structural schematic view of an extruder material blocking early warning device extruding mechanism and early warning mechanism of the present application;

[0036] Figure 2 is an enlarged view of part A in the present application; Figure 1

[0037] Figure 3 is a structural schematic view of a cleaning assembly and a first driving assembly of the present application;

[0038] Figure 4 is a structural schematic view of a cleaning assembly and a second driving assembly of the present application.

[0039] Explanation of reference signs: 1, extruding mechanism; 11, second frame body; 12, discharging piece; 121, discharging groove; 2, early warning mechanism; 21, first frame body; 22, mounting frame; 221, through space; 23, proximity switch; 24, swing bar; 241, first gap; 242, second gap; 25, alarm; 26, first rotating shaft; 3, cleaning assembly; 31, first cleaning piece; 32, elastic piece; 33, second mounting seat; 34, second cleaning piece; 4, first driving assembly; 41, first mounting; 42, second rotating shaft; 421, handle; 43, cam; 5, second driving assembly; 51, first bevel gear; 52, second bevel gear; 53, screw rod; 531, third mounting seat. DETAILED DESCRIPTION

[0040] The present application will be further described below in conjunction with the accompanying drawings. Figures 1-4 The present application will be further described below in conjunction with the accompanying drawings.

[0041] The present application discloses an extruder material blocking early warning device. Referring to Figure 1 and Figure 2 ​, the extrusion mechanism 1 and the early warning mechanism 2 are arranged along a first direction, the early warning mechanism 2 comprises a first frame body 21, a mounting frame 22, a proximity switch 23 and a swing bar 24, the mounting frame 22 is mounted on the first frame body 21, the mounting frame 22 and the first frame body 21 have a passing space 221 for the material to pass through in a second direction, the second direction is perpendicular to the first direction, the proximity switch 23 is mounted on the mounting frame 22, the swing bar 24 is parallel to a third direction, the third direction is perpendicular to both the first direction and the second direction, the swing bar 24 is arranged on a side of the mounting frame 22 close to the passing space 221, one end of the swing bar 24 is in contact with the proximity switch 23, the side of the swing bar 24 close to the passing space 221 has a first gap 241 with a side wall of the mounting frame 22 in the second direction, and the swing bar 24 is rotationally connected to the mounting frame 22 and parallel to the first direction along an axis of rotation of the mounting frame 22;

[0042] With reference to Figure 1 and Figure 2 , the early warning mechanism 2 further comprises a siren 25 electrically connected with the proximity switch 23; the material is extruded by the extrusion mechanism 1 and transported towards the first frame body 21, and further passes through the passing space 221 of the mounting frame 22, if the extrusion mechanism 1 is blocked, the material will gather when passing through the passing space 221, the width of the material will become larger after accumulation, and the material will extend into the first gap 241 when the accumulation is excessive, so as to contact the swing bar 24, drive the swing bar 24 to rotate along the first direction, and further cause the one end of the swing bar 24 to be offset from the proximity switch 23, so that the proximity switch 23 senses the swing of the swing bar 24 and transmits a signal to the siren 25 to generate an alarm sound, reminding the operator to handle the abnormality as soon as possible.

[0043] With reference to Figure 2 In the embodiment, the proximity switch 23 is a prior art in the field, and the proximity switch 23 is a position switch that can be operated without mechanical direct contact with a moving part, and works when an object approaches the sensing surface of the proximity switch 23 to a certain distance, without mechanical contact and any pressure applied to the shell, so as to transmit a signal to the siren 25.

[0044] With reference to Figure 2 In order to facilitate personnel to disassemble or replace the swing bar 24, the early warning mechanism 2 further comprises a first rotating shaft 26, the first rotating shaft 26 is parallel to the first direction, one end of the first rotating shaft 26 is rotationally connected to the mounting frame 22, and the other end is detachably connected with the swing bar 24, so as to facilitate personnel to disassemble and replace the swing bar 24.

[0045] With reference to Figure 1In order to facilitate the extrusion, the extrusion mechanism 1 comprises a second frame body 11 and a discharging part 12, the discharging part 12 is installed on the second frame body 11, and the discharging part 12 is provided with a discharging groove 121 penetrating through in the first direction.

[0046] With reference to Figure 3 When the material is excessively accumulated, the material will adhere to the mounting frame 22, affecting the passing of the subsequent material. Therefore, the extruder blockage early warning device cleaning assembly 3 comprises a first cleaning part 31, the first cleaning part 31 is arranged above the mounting frame 22, and the first cleaning part 31 is slidingly connected to the mounting frame 22 in the third direction, so that the first cleaning part 31 contacts the mounting frame 22 when sliding in the third direction, and the mounting frame 22 is vibrated, so that the material adhered to the mounting frame 22 is shaken off under the action of vibration.

[0047] With reference to Figure 3 In order to drive the first cleaning part 31 to slide in the third direction, the extruder blockage early warning device first driving assembly 4 is arranged above the mounting frame 22 and located on the side away from the mounting frame 22 of the first cleaning part 31, the first driving assembly 4 comprises a first mounting seat 41, a second rotating shaft 42 and a cam 43, the first mounting seat 41 is fixedly connected to the mounting frame 22, the second rotating shaft 42 is parallel to the first direction, and the second rotating shaft 42 is rotatably connected to the first mounting seat 41, the second rotating shaft 42 is parallel to the first direction along the rotating axis of the first mounting seat 41, the cam 43 is coaxially fixedly sleeved on the first rotating shaft 26, one end of the first connecting part is slidingly connected to the first mounting seat 41 in the third direction, and the protruding part of the cam 43 is in contact with the first cleaning part 31.

[0048] With reference to Figure 3 In order to reset the first cleaning part 31, the cleaning assembly 3 further comprises a resilient part 32 and a second mounting seat 33, the second mounting seat 33 is fixedly connected to the first mounting seat 41 and located on the side away from the mounting frame 22 of the first cleaning part 31, the extension direction of the resilient part 32 is parallel to the third direction, and the resilient part 32 is fixedly connected between the second mounting seat 33 and the first cleaning part 31. In the embodiment, the resilient part 32 is a tensile spring, the resilient part 32 has a force for driving the first cleaning part 31 to move away from the mounting frame 22 under recoverable deformation, the second rotating shaft 42 is rotated to drive the cam 43 to rotate to the protruding part in contact with the first cleaning part 31, the resilient part 32 is stretched, and one side of the first cleaning part 31 is in contact with the top wall of the mounting frame 22. When the cam 43 is rotated to the protruding part away from the first cleaning part 31, the resilient part 32 is changed from the stretched state to the normal state, and the first cleaning part 31 is in a non-contact state with the mounting frame 22.

[0049] With reference to Figure 4When the extrusion mechanism 1 is blocked, the material will contact the mounting frame 22, and if it is not cleaned in time, it will affect the subsequent material passing through. In addition, when the material passes through the passing space 221, due to the adhesion of residual material on the mounting frame 22, the material that meets the requirements will be in contact with the material adhered to the mounting frame 22, further driving the swing bar 24 to rotate, and mistakenly touching the proximity switch 23. In order to reduce the above situation, the cleaning assembly 3 further comprises a second cleaning piece 34, the swing bar 24 and the side wall of the mounting frame 22 have a second gap 242 in the first direction, and the second cleaning piece 34 is located in the second gap 242. One side of the second cleaning piece 34 is in contact with the side wall of the mounting frame 22, and the second cleaning piece 34 is slidingly connected to the mounting frame 22 in the third direction, so as to scrape and clean the material adhered to the side wall of the mounting frame 22 by the second cleaning piece 34.

[0050] Referring to Figure 4 In order to drive the second cleaning piece 34 to slide in the third direction, the extruder blockage early warning device further comprises a second driving assembly 5, the second driving assembly 5 comprises a first bevel gear 51, a second bevel gear 52 and a screw rod 53, the first bevel gear 51 is coaxially sleeved on the second rotating shaft 42, the screw rod 53 is parallel to the third direction, the screw rod 53 is connected to the mounting frame 22 through a third mounting seat 531, specifically, the third mounting seat 531 is fixedly connected to the side wall of the mounting frame 22, the screw rod 53 is rotatably connected to the third mounting seat 531, the screw rod 53 is parallel to the third direction along the rotation axis of the third mounting seat 531, the second bevel gear 52 is coaxially sleeved on the screw rod 53, and the second bevel gear 52 is engaged with the first bevel gear 51, the second cleaning piece 34 is sleeved on the screw rod 53 and slides along the length direction of the screw rod 53. When the second rotating shaft 42 is rotated, the first bevel gear 51 is driven to rotate, the second bevel gear 52 is driven to rotate by the first bevel gear 51, and the screw rod 53 is further driven to rotate, so as to drive the second cleaning piece 34 to slide along the length direction of the screw rod 53, so as to scrape and clean the material adhered to the side wall of the mounting frame 22 by the second cleaning piece 34.

[0051] Referring to Figure 4 In order to facilitate personnel to rotate the second rotating shaft 42, the second rotating shaft 42 is fixedly connected with a handle 421 at one end.

[0052] The implementation principle of the blockage early warning device of the extruder is as follows: the material is extruded by the extruding mechanism 1 and transported towards the first frame body 21, the material further passes through the passing space 221 of the mounting frame 22, if the extruding mechanism 1 is blocked, the material will be gathered when passing through the passing space 221, the width of the material accumulation is increased, and when the material accumulation is too much, the material will extend into the first gap 241 and contact the swing bar 24, so as to drive the swing bar 24 to rotate in the first direction, further make one end of the swing bar 24 relatively close to the switch 23 to produce a position offset, so that the proximity switch 23 senses the swing of the swing bar 24, and transmits a signal to the alarm 25 to produce an alarm sound, reminding the operator to handle the abnormality as soon as possible;

[0053] When the material adhered to the mounting frame 22 needs to be cleaned, the handle 421 is rotated to drive the second rotating shaft 42 to rotate, so as to drive the cam 43 to rotate, when the protruding part of the cam 43 contacts the first cleaning piece 31, the first cleaning piece 31 slides in the third direction until the first cleaning piece 31 contacts the top wall of the mounting frame 22, so that the mounting frame 22 is vibrated to shake off the material adhered to the mounting frame 22, at the same time, the second rotating shaft 42 drives the first bevel gear 51 and the second bevel gear 52 to rotate, so as to drive the screw rod 53 to rotate in the third direction, and drive the second cleaning piece 34 to slide along the length direction of the screw rod 53, so that the second cleaning piece 34 scrapes and cleans the material adhered to the side wall of the mounting frame 22, and the cleaning degree of the mounting frame 22 is further improved.

[0054] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A pre-warning device for a material jam in an extruder, characterized in that: The device comprises an extruding mechanism (1) and a pre-warning mechanism (2); The extruding mechanism (1) and the pre-warning mechanism (2) are arranged along a first direction. The pre-warning mechanism (2) comprises a first frame (21), a mounting frame (22), a proximity switch (23), a swing bar (24) and an alarm (25). The mounting frame (22) is mounted on the first frame (21), and the mounting frame (22) and the first frame (21) have a passing space (221) for the material to pass through in a second direction perpendicular to the first direction. The proximity switch (23) is mounted on the mounting frame (22). The swing bar (24) is parallel to a third direction perpendicular to both the first direction and the second direction, and is arranged on the side of the mounting frame (22) close to the passing space (221). One end of the swing bar (24) is in contact with the proximity switch (23), and the side of the swing bar (24) close to the passing space (221) has a first gap (241) with the side wall of the mounting frame (22) in the second direction. The swing bar (24) is rotationally connected to the mounting frame (22), and is parallel to the first direction along the rotation axis of the mounting frame (22). The alarm (25) is electrically connected to the proximity switch (23).

2. The extruder jam early warning device of claim 1, wherein: The pre-warning mechanism (2) further comprises a first rotation shaft (26) parallel to the first direction, which is rotationally connected to the mounting frame (22) and detachably connected to the other end of the swing bar (24).

3. The extruder jam early warning device of claim 1, wherein: The extruding mechanism (1) comprises a second frame (11) and a discharging member (12) mounted on the second frame (11). The discharging member (12) has a discharging groove (121) for the material to extrude, which is formed along the first direction.

4. The extruder jam early warning device of claim 1, wherein: The device further comprises a cleaning assembly (3) comprising a first cleaning member (31) arranged above the mounting frame (22) and slidingly connected to the mounting frame (22) along the third direction.

5. The extruder jam early warning device of claim 4, wherein: The cleaning assembly (3) further comprises an elastic member (32) and a second mounting seat (33) directly or indirectly connected to the mounting frame (22) and located on the side of the first cleaning member (31) away from the mounting frame (22). The elastic member (32) is fixedly connected between the second mounting seat (33) and the first cleaning member (31) and has a force to drive the first cleaning member (31) to move away from the mounting frame (22) under recoverable deformation.

6. The extruder jam early warning device of claim 4, wherein: The first driving assembly (4) is arranged above the mounting frame (22) and located at the side of the first cleaning member (31) away from the mounting frame (22), and comprises a second rotating shaft (42) and a cam (43). The second rotating shaft (42) is parallel to the first direction and rotationally connected to the mounting frame (22). The second rotating shaft (42) is parallel to the first direction along the rotating axis of the mounting frame (22). The cam (43) is coaxially fixedly sleeved on the second rotating shaft (42), and the convex part of the cam (43) is in contact with the first cleaning member (31).

7. The extruder jam early warning device of claim 2, wherein: The second cleaning member (34) is located in the second gap (242) between the swing bar (24) and the side wall of the mounting frame (22) in the first direction. One side of the second cleaning member (34) is in contact with the side wall of the mounting frame (22), and the second cleaning member (34) is slidingly connected to the mounting frame (22) in the third direction.

8. The extruder jam early warning device of claim 7, wherein: The second driving assembly (5) comprises a first bevel gear (51), a second bevel gear (52) and a screw rod (53). The first bevel gear (51) is coaxially sleeved on the first rotating shaft (26). The screw rod (53) is parallel to the third direction and rotationally connected to the mounting frame (22). The screw rod (53) is parallel to the third direction along the rotating axis of the mounting frame (22). The second bevel gear (52) is coaxially sleeved on the screw rod (53) and engaged with the first bevel gear (51). The second cleaning member (34) slides along the length direction of the screw rod (53).

9. The extruder jam early warning device of claim 6, wherein: The first driving assembly (4) further comprises a handle (421) coaxially sleeved on the second rotating shaft (42).

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