Screw extruder with alarm function

Abstract

The invention discloses a screw extruder with an alarm function, and relates to the technical field of extruder alarms, the screw extruder comprises a shell and a driving module which are arranged on a screw extruder body, a machine barrel is arranged in the shell, a screw body is arranged in the machine barrel, and a feeding port is formed in the top of the machine barrel. When the extrusion opening is blocked, the blockage can be detected in time, an alarm is given through the alarm, the extrusion efficiency and quality are ensured, and meanwhile, the outlet of the extrusion opening can be blocked and sealed, so that more unqualified materials are prevented from being extruded, and the waste of the materials can be avoided; besides, before the raw materials are fed into the feeding port, waste heat of the extrusion port can be used for preheating the raw materials, meanwhile, the raw materials are heated and softened, impurities which cannot be heated and softened in the raw materials can be conveniently removed, normal operation of the screw extruder body is guaranteed, meanwhile, the probability that the extrusion port is blocked can be reduced, and the production efficiency and effect are guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of extruder alarms, in particular to a screw extruder with an alarm function. Background Art

[0002] Screw extruder is an important plastic processing equipment, mainly composed of a shell, a drive module, a barrel, a die head, an extrusion port and a feed port. During extrusion, the raw material is fed into the barrel through the feed port, and the screw in the barrel is driven to rotate by the drive module. At the same time, the raw material is heated and melted by the barrel, and the molten raw material can be extruded through multiple extrusion ports on the die head.

[0003] However, when the existing screw extruder is in use, the raw materials are easily mixed with plastic particles of different properties or resin particles that are difficult to plasticize, as well as other sundries. During the extrusion process, it is not easy to melt, which not only affects the quality of extrusion, but also easily causes blockage of the extrusion port. Moreover, when the extrusion port is blocked, it is not easy to be discovered in time, which not only affects the efficiency and quality of extrusion, but also easily causes waste of materials. Summary of the invention

[0004] The object of the present invention is to provide a screw extruder with an alarm function to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a screw extruder with an alarm function, comprising a housing and a driving module arranged on a screw extruder body, a barrel arranged in the housing, a screw body arranged in the barrel, a feeding port arranged at the top of the barrel, a die head fixedly connected to the outlet of the barrel, and a plurality of extrusion ports arranged on the side wall of the die head, an alarm mechanism arranged on the side wall of the housing, and the alarm mechanism is used to alarm when the extrusion port is blocked, a feeding mechanism is arranged on the top of the housing, and the feeding mechanism is used to supply raw materials into the feeding port; The alarm mechanism includes a fixed tube fixedly connected to the top of each extrusion port, and a moving rod is slidably connected in the fixed tube, a first moving block is fixedly connected to the upper end of the moving rod, and a reset mechanism is arranged between the first moving block and the extrusion port, two symmetrically arranged first support plates are fixedly connected to the top of the fixed tube, and the side wall of the first support plate is rotatably connected to the rotating plate through a rotating pin, a sliding groove is provided on the side wall of the rotating plate, and the side wall of the first moving block is fixedly connected to the first connecting block, the side wall of the first connecting block is fixedly connected to the first pushing pin, and the first pushing pin is inserted in the sliding groove, the side wall of the shell is fixedly connected to the first fixed plate, and two symmetrically arranged first T-shaped guide rods are inserted at the top of the first fixed plate, the lower end of the first T-shaped guide rod is fixedly connected to the L-shaped plate, and the bottom of the first fixed plate is fixedly connected to the distance sensor, the top of the shell is fixedly connected to the alarm, and the alarm is electrically connected to the distance sensor, the side wall of the extrusion port is rotatably connected to the cover plate through the rotating mechanism, and the side wall of the extrusion port is provided with a limiting mechanism for limiting the first moving block.

[0006] Preferably, the feeding mechanism includes a processing box fixedly connected to the top of the shell body, and a first inclined surface is provided at the bottom of the processing box, a feeding port connected to the feeding port is provided at the bottom of the first inclined surface, and a partition is fixedly connected to the top of the processing box, a feeding port is provided between the partition and the first inclined surface, and an electric heating plate is embedded at the bottom of the feeding port, the partition divides the processing box into a left half area and a right half area, and a discharge valve is fixedly connected to the top of the left half area, the top of the discharge valve is fixedly connected to the material box, and a first fixed cover is fixedly inserted on the side wall of the material box, A first fixed cover is located on one side of the material box and is provided with a plurality of first filter holes arranged in an array, and a first fan is fixedly connected to a side wall of the first fixed cover, a second fixed cover is fixedly connected to a side wall of the extrusion port, and a plurality of air inlet holes arranged in an array are provided at the bottom of the second fixed cover, an exhaust pipe is fixedly connected between the first fan and the second fixed cover, and a collecting cover is provided at the bottom of the right half, a third fixed cover is fixedly inserted on the side wall of the collecting cover, and a plurality of second filter holes are provided on one side of the third fixed cover located in the collecting cover, and a third fixed cover is fixedly connected to a side wall of the third fixed cover There is a second fan, and the side wall of the second fan is fixedly connected to an air outlet pipe, a plurality of dust suction holes are provided at the bottom of the right half area, and the dust suction holes are connected to the collection cover, a movable plate is connected to the right half area through a first movable mechanism, and a plurality of bristles are fixedly connected to the bottom of the movable plate, two symmetrically arranged collecting ports are provided at the bottom of the right half area, the collecting ports are connected to the collection cover, and a second movable block is connected to the side wall of the right half area through a second movable mechanism, an L-shaped toggle plate is fixedly connected to the side wall of the second movable block, and the side wall of the right half area rotates through a second rotating shaft The right half zone is rotatably connected to a rotating roller, and the side wall of the rotating roller is fixedly connected to a plurality of hemispherical protrusions, the rotation of the second rotating shaft is driven by the first driving mechanism, the bottom of the right half zone is fixedly connected to two symmetrically arranged baffles, and the left half zone is provided with a stirring mechanism for stirring the material; the stirring mechanism includes a third rotating shaft rotatably connected to the side wall of the left half zone, and one end of the third rotating shaft is fixedly connected to a rotating frame, the side wall of the rotating frame is fixedly connected to a plurality of stirring rods arranged in an array, and the rotation of the third rotating shaft is driven by the second driving mechanism.

[0007] Preferably, the rotating mechanism includes two symmetrically arranged fixed blocks fixedly connected to the side walls of the extrusion port, and the side walls opposite to the two fixed blocks are rotatably connected to the rotating blocks via a fourth rotating shaft, the rotating blocks are fixed to the side walls of the cover plate, and the side wall fixing sleeve of the fourth rotating shaft is provided with a gear, the side wall of the fixed block is connected to a rack via a moving component, and the rack is meshing with the gear.

[0008] Preferably, the moving assembly includes two symmetrically arranged second connecting blocks fixedly connected to the side walls of the fixed block, and the opposite side walls of the two second connecting blocks are fixedly connected to two symmetrically arranged guide rods, the side wall of each guide rod is sleeved with a slider, and the rack is fixed to the side wall of the slider, the side wall of each guide rod is sleeved with a first spring, the side wall of the first moving block is fixedly connected to a first pushing block, and the top of the rack is fixedly connected to a first pushing rod.

[0009] Preferably, the limiting mechanism includes a second support plate fixedly connected to the top of the extrusion port, and two symmetrically arranged second T-shaped guide rods are inserted into the side wall of the second support plate, one end of the second T-shaped guide rod is fixedly connected to a limiting block, the limiting block includes a second inclined surface, and the side wall of each second T-shaped guide rod is sleeved with a second spring, and the side wall of the second support plate is fixedly connected to an electromagnet.

[0010] Preferably, the first driving mechanism includes a second fixed plate fixedly connected to the top of the shell, and the side wall of the second fixed plate is fixedly connected to the first motor, the output end of the first motor is fixedly connected to a rotating rod, and the side wall fixed sleeve of the rotating rod is provided with a driving pulley, the side wall fixed sleeve of the second rotating shaft is provided with a driven pulley, and a belt is provided between the driven pulley and the driving pulley.

[0011] Preferably, the first moving mechanism includes two symmetrically arranged third T-shaped guide rods inserted in the side wall of the right half zone, and one end of the third T-shaped guide rods is fixed to the side wall of the moving plate, and the side wall of each third T-shaped guide rod is sleeved with a third spring, a second push rod is inserted into the side wall of the right half zone, and one end of the second push rod is fixed to the side wall of the moving plate, the other end of the second push rod is fixedly connected to a connecting plate, and the side wall of the connecting plate is fixedly connected to a second push block, the side wall of the rotating rod is fixedly sleeved with a rotating disk, and the end of the rotating disk is fixedly connected to a plurality of conical blocks.

[0012] Preferably, the second moving mechanism includes two symmetrically arranged fourth T-shaped guide rods inserted in the side wall of the right half zone, and one end of the fourth T-shaped guide rod is fixed to the side wall of the second moving block, the side wall of each of the fourth T-shaped guide rods is sleeved with a fourth spring, and the outer side wall of the right half zone is fixedly connected to a support block, the side wall of the support block is fixedly connected to a second motor, and the output end of the second motor is fixedly connected to a winding wheel, the side wall of the winding wheel is fixedly connected to a pull rope, and the other end of the pull rope passes through the right half zone and is fixed to the side wall of the second moving block.

[0013] Preferably, the second driving mechanism includes a connecting frame fixedly connected to the side wall of the connecting plate, and the side wall of the connecting frame is fixedly connected to the second pushing pin, the side wall of the third rotating shaft is provided with a spiral groove, and the second pushing pin is inserted in the spiral groove.

[0014] Preferably, the reset mechanism includes two symmetrically arranged fifth T-shaped guide rods inserted on the top of each first moving block, and the lower end of the fifth T-shaped guide rod is fixed to the top of the extrusion port, and the side wall of each fifth T-shaped guide rod is sleeved with a fifth spring.

[0015] Compared with the prior art, the present invention has the following beneficial effects: (1) This screw extruder is provided with an alarm mechanism, etc., so that when the molten material is extruded through the extrusion port during production, the moving rod can be pushed to slide upward along the inner wall of the fixed tube under the action of pressure, and at the same time, the first moving block is driven to slide upward along the fifth T-shaped guide rod, and the fifth spring is compressed. When the extrusion port is blocked, the amount of material extruded decreases, and the pressure on the moving rod decreases. At this time, under the action of the fifth spring, the moving rod and the first moving block can be moved downward and reset. At this time, when the first moving block moves downward, the first push pin is driven to slide downward along the slide groove through the first connecting block, thereby pushing the rotating plate to rotate upward along the rotating pin and abutting against the bottom of the L-shaped plate, thereby pushing the L-shaped plate to move upward. At this time, it can be detected by the distance sensor, so that when the extrusion port is blocked, it can be detected in time, and an alarm can be sounded through the alarm to ensure the efficiency and quality of extrusion.

[0016] (2) This type of screw extruder is provided with a limit mechanism and a rotating mechanism. Before extruding the material, the electromagnet is energized. At this time, the limit block is attracted to move in the direction close to the second support plate. At the same time, the second spring is compressed. After the material is discharged normally, the moving rod and the first moving block move upward, and the first push block moves to the top of the limit block. Then, the electromagnet is de-energized. At this time, under the action of the second spring, the limit block can move in the direction away from the second support plate and reset under the action of the second spring and be located below the first push block. When the extrusion port is blocked, the first moving block and the moving rod move downward. At the same time, when the first moving block moves downward, it drives the first push block to move downward synchronously and abuts against the upper end of the first push rod, thereby pushing the rack to move downward. The first spring is compressed. When the rack moves downward, it can push the gear and the fourth rotating shaft. When the first push block passes over the limit block, the limit block can move and reset under the action of the second spring, and make the first push block abut against the bottom of the limit block, so as to limit the first push block, thereby limiting the moving rod and avoiding that after the outlet of the extrusion port is blocked, as the internal pressure of the extrusion port gradually increases, the moving rod moves upward, thereby ensuring the accuracy of the detection result. At the same time, the cover plate can be limited to ensure the blocking effect, and when the machine is shut down for maintenance, it is convenient for maintenance personnel to observe which extrusion port is blocked.

[0017] (3) This type of screw extruder is provided with a feeding mechanism, etc., so that during production, the raw materials are placed in a material box for storage. When feeding is required, the discharge valve is opened, and the raw materials in the material box enter the left half area through the discharge valve. At the same time, the first fan is started, and the air can be exhausted through the air inlet hole. This can not only pre-cool the extrusion port, thereby improving the cooling efficiency and effect of the extruded material, but also absorb the residual heat. The hot air enters the first fixed cover through the exhaust pipe, and enters the raw materials in the material box through the first filter hole. At the same time, The raw materials can enter the left half area with the raw materials, so as to be preheated. After the preheated raw materials are discharged through the material outlet, they can be spread into a layer and enter the right half area, and slide downward along the first inclined surface and the baffle. At the same time, the electric heating plate is started to heat the raw materials and soften them. In addition, the first motor is started, and the rotation of the first motor drives the rotating rod to rotate, thereby driving the driving pulley to rotate, and the driven pulley and the second rotating shaft are driven to rotate through the belt. When the second rotating shaft rotates, it drives the rotating roller to rotate. When the heated and softened raw materials are moved along the first inclined surface When the wire rope is lowered to the bottom of the rotating roller, the wire rope can be squeezed and deformed by the protrusion, and then pass through the bottom of the rotating roller, continue to slide along the first inclined surface, and enter the barrel through the feeding port and the feeding port. The mixed miscellaneous materials that cannot be heated and softened can be pushed and blocked on one side of the rotating roller by the protrusion. In addition, the second motor is started, and the rotation of the second motor drives the rotation of the winding wheel, which can reel in the pull rope, thereby pulling the second moving block and the toggle plate to move in the direction close to the second motor. At the same time, the fourth spring is compressed, and when the second motor is reversed, the pull rope can be loosened. Open, at this time, under the action of the fourth spring, the second moving block and the toggle plate can move and reset, and so on, the second moving block can drive the toggle plate to move back and forth, so that the sundries that cannot be heated and softened on one side of the rotating roller can be toggled, and the raw materials softened after heating can pass through the rotating roller after extrusion and deformation, so that the sundries that cannot be heated and softened can enter the collecting cover through the collecting port for collection, so as to facilitate the removal of the sundries that cannot be heated and softened in the raw materials, ensure the normal operation of the screw extruder body, and at the same time, reduce the probability of blockage of the extrusion port, and ensure the efficiency and effect of production.

[0018] (4) This screw extruder is provided with a stirring mechanism and a first moving mechanism, etc., so that when feeding, when the rotating rod rotates, it can drive the rotating disk to rotate synchronously, and when the conical block abuts against the side wall of the second push block, it can push the connecting plate to move in the direction close to the processing box, and the second push rod drives the moving plate and the bristles to move. At the same time, the third spring is compressed. When the conical block passes over the second push block, the moving plate and the bristles can move and reset under the action of the third spring, and the second push rod drives the connecting plate to move and reset, and so on and so forth, so that the moving plate drives the bristles It moves back and forth, so as to clean the raw materials. At the same time, the second fan is started to perform exhaust operation. At this time, the dust in the raw materials can be absorbed through the dust suction holes, and collected in the collection cover under the action of the second filter hole, so as to ensure the quality of production. In addition, when the connecting plate moves back and forth, the second push pin is driven by the connecting frame to slide back and forth along the spiral groove, thereby pushing the third rotating shaft to rotate back and forth. When the third rotating shaft rotates back and forth, the stirring rod is driven to rotate back and forth through the rotating frame, so as to stir the material in the left half area, and improve the efficiency and effect of discharging. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the housing in the present invention; Figure 3 It is a schematic diagram of the positions of the first moving mechanism and the second moving mechanism in the present invention; Figure 4 It is a schematic diagram of the inner wall structure of the processing box in the present invention; Figure 5 It is a structural schematic diagram of the alarm mechanism in the present invention; Figure 6 It is a structural schematic diagram of the alarm mechanism in the present invention from another perspective; Figure 7 It is a schematic diagram of the structure of the collecting cover in the present invention; Figure 8 for Figure 1 A schematic diagram of the enlarged structure at A in the middle; Fig. 9 for Figure 1 A schematic diagram of the enlarged structure at B in the middle; Fig.10 for Figure 3 Schematic diagram of the enlarged structure at C in the middle; Fig.11 for Figure 4 Schematic diagram of the enlarged structure at D in the middle; Fig.12 for Figure 5 Schematic diagram of the enlarged structure at E in the middle; Fig.13 for Figure 6 The enlarged structural diagram at F in the middle; Fig.14 for Fig. 9 Schematic diagram of the enlarged structure at G in the middle; Fig.15 for Fig. 9 Schematic diagram of the enlarged structure at H in the middle; Fig.16 for Fig.11 A schematic diagram of the enlarged structure at position I in the middle; Fig.17 for Fig.12 Schematic diagram of the enlarged structure at J in the middle.

[0020] In the figure: 1. screw extruder body; 101. shell; 102. drive module; 103. barrel; 104. die head; 105. extrusion port; 106. feeding port; 2. rotating mechanism; 201. fixed block; 202. fourth rotating shaft; 203. rotating block; 204. gear; 205. rack; 3. moving assembly; 301. second connecting block; 302. guide rod; 303. slider; 304. first spring; 305. first push rod; 306. first push block; 4. limiting mechanism; 401. second support plate; 402. second T-shaped guide rod; 403. limiting block; 404. second inclined plane; 405. second spring; 406. electromagnet; 5. stirring mechanism; 501. third rotating shaft; 502, rotating frame; 503, stirring rod; 6, first moving mechanism; 601, conical block; 602, second pushing block; 603, third T-shaped guide rod; 604, third spring; 605, second pushing rod; 606, connecting plate; 607, rotating disk; 7, second driving mechanism; 701, spiral groove; 702, connecting frame; 703, second pushing pin; 8, first driving mechanism; 801, second fixed plate; 802, first motor; 803, rotating rod; 804, driving pulley; 805, driven pulley; 806, belt; 9, second moving mechanism; 901, fourth T-shaped guide rod; 902, fourth spring; 903, supporting block; 904, second motor; 905, winding wheel; 906 , pull rope; 10, reset mechanism; 1001, fifth T-shaped guide rod; 1002, fifth spring; 11, alarm mechanism; 1101, fixed tube; 1102, moving rod; 1103, first support plate; 1104, rotating pin; 1105, rotating plate; 1106, first fixed plate; 1107, first T-shaped guide rod; 1108, L-shaped plate; 1109, slide groove; 1110, first connecting block; 1111, first push pin; 1112, cover plate; 1113, alarm; 1114, first moving block; 1115, distance sensor; 12, feeding mechanism; 1201, processing box; 1202, first inclined plane; 1203, feeding port; 1204, partition; 1205, left half; 1 206, right half area; 1207, material passing port; 1208, electric heating plate; 1209, discharge valve; 1210, material box; 1211, first fixed cover; 1212, first filter hole; 1213, first fan; 1214, second fixed cover; 1215, air inlet; 1216, exhaust pipe; 1217, second rotating shaft; 1218, rotating roller; 1219, protrusion; 1220, collecting cover; 1221, dust suction hole; 1222, third fixed cover; 1223, second fan; 1224, air outlet pipe; 1225, second moving block; 1226, toggle plate; 1227, collecting port; 1228, baffle; 1229, moving plate; 1230, brush; 1231, second filter hole.

[0021] Specific implementation method.

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-Figure 17 The present invention provides a technical solution: a screw extruder with an alarm function, comprising a shell 101 and a driving module 102 arranged on a screw extruder body 1, a barrel 103 is arranged in the shell 101, a screw body is arranged in the barrel 103, an electric heater is also arranged on the side wall of the barrel 103, and a feeding port 106 is arranged on the top of the barrel 103, a die head 104 is fixedly connected to the outlet of the barrel 103, and a plurality of extrusion ports 105 are arranged on the side wall of the die head 104, and the components of the screw extruder body 1 are well-known technologies in the technical field, and their structures and principles are not repeated here, an alarm mechanism 11 is arranged on the side wall of the shell 101, and the alarm mechanism 11 is used to alarm when the extrusion port 105 is blocked, and a feeding mechanism 12 is arranged on the top of the shell 101, and the feeding mechanism 12 is used to supply raw materials into the feeding port 106; The alarm mechanism 11 includes a fixed tube 1101 fixedly connected to the top of each extrusion port 105, and a moving rod 1102 is slidably connected in the fixed tube 1101, a first moving block 1114 is fixedly connected to the upper end of the moving rod 1102, and a reset mechanism 10 is arranged between the first moving block 1114 and the extrusion port 105, two symmetrically arranged first support plates 1103 are fixedly connected to the top of the fixed tube 1101, and the side wall of the first support plate 1103 is rotatably connected to the rotating plate 1105 through a rotating pin 1104, a sliding groove 1109 is opened on the side wall of the rotating plate 1105, and the side wall of the first moving block 1114 is fixedly connected to the first connecting pin 1104. The first connecting block 1110 is fixedly connected to the side wall of the first connecting block 1110 with a first push pin 1111, and the first push pin 1111 is inserted in the slide groove 1109. The side wall of the shell 101 is fixedly connected to the first fixing plate 1106, and the top of the first fixing plate 1106 is inserted with two symmetrically arranged first T-shaped guide rods 1107, the lower end of the first T-shaped guide rod 1107 is fixedly connected to the L-shaped plate 1108, and the bottom of the first fixing plate 1106 is fixedly connected to the distance sensor 1115, the top of the shell 101 is fixedly connected to the alarm 1113, and the alarm 1113 is electrically connected to the distance sensor 1115, and the extrusion port 105 is fixedly connected to the first fixing plate 1106. The side wall of the cover plate 1112 is rotatably connected to the side wall of the extrusion port 105 through the rotating mechanism 2, and the side wall of the extrusion port 105 is provided with a limiting mechanism 4 for limiting the first moving block 1114. During production, the melted material is extruded through the extrusion port 105. At this time, under the action of pressure, the moving rod 1102 can be pushed to slide upward along the inner wall of the fixed tube 1101, and at the same time, the first moving block 1114 is driven to slide upward along the fifth T-shaped guide rod 1001, and the fifth spring 1002 is compressed. When the extrusion port 105 is blocked, the material extrusion amount becomes less, and the pressure on the moving rod 1102 becomes smaller. At this time, under the action of the fifth spring 1002 Under the use, the moving rod 1102 and the first moving block 1114 can move downward and reset. At this time, when the first moving block 1114 moves downward, the first connecting block 1110 drives the first pushing pin 1111 to slide downward along the slide groove 1109, thereby pushing the rotating plate 1105 to rotate upward along the rotating pin 1104 and abut against the bottom of the L-shaped plate 1108, thereby pushing the L-shaped plate 1108 to move upward. At this time, it can be detected by the distance sensor 1115, so that when the extrusion port 105 is blocked, it can be detected in time, and an alarm can be sounded through the alarm 1113 to ensure the efficiency and quality of extrusion.

[0024] The feeding mechanism 12 includes a processing box 1201 fixedly connected to the top of the shell 101, and a first inclined surface 1202 is provided at the bottom of the processing box 1201, a feeding port 1203 connected to the feeding port 106 is provided at the bottom of the first inclined surface 1202, and a partition 1204 is fixedly connected to the top of the processing box 1201, a feeding port 1207 is provided between the partition 1204 and the first inclined surface 1202, and an electric heating plate 1208 is embedded at the bottom of the feeding port 1207, the partition 1204 divides the processing box 1201 into a left half area 1205 and a right half area 1206, and a discharge valve 1209 is fixedly connected to the top of the left half area 1205, and the top of the discharge valve 1209 A material box 1210 is fixedly connected, and a first fixed cover 1211 is fixedly inserted into the side wall of the material box 1210. A plurality of first filter holes 1212 arranged in an array are provided on one side of the first fixed cover 1211 located in the material box 1210, and a first fan 1213 is fixedly connected to the side wall of the first fixed cover 1211. A second fixed cover 1214 is fixedly connected to the side wall of the extrusion port 105, and a plurality of air inlet holes 1215 arranged in an array are provided at the bottom of the second fixed cover 1214. An exhaust pipe 1216 is fixedly connected between the first fan 1213 and the second fixed cover 1214, and a collecting cover 1220 is provided at the bottom of the right half area 1206. The side wall of the collecting cover 1220 A third fixed cover 1222 is fixedly inserted, and a plurality of second filter holes 1231 are provided on one side of the third fixed cover 1222 in the collecting cover 1220, a second fan 1223 is fixedly connected to the side wall of the third fixed cover 1222, and an air outlet duct 1224 is fixedly connected to the side wall of the second fan 1223, a plurality of dust suction holes 1221 are provided at the bottom of the right half area 1206, and the dust suction holes 1221 are connected to the collecting cover 1220, a movable plate 1229 is connected to the right half area 1206 through the first movable mechanism 6, and a plurality of bristles 1230 are fixedly connected to the bottom of the movable plate 1229, and two symmetrically arranged collecting ports 1227 are provided at the bottom of the right half area 1206. The collecting port 1227 is communicated with the collecting cover 1220, and the side wall of the right half area 1206 is connected to the second moving block 1225 through the second moving mechanism 9, and the side wall of the second moving block 1225 is fixedly connected to the L-shaped toggle plate 1226, and the side wall of the right half area 1206 is rotatably connected to the rotating roller 1218 through the second rotating shaft 1217, and the side wall of the rotating roller 1218 is fixedly connected to a plurality of hemispherical protrusions 1219, and the rotation of the second rotating shaft 1217 is driven by the first driving mechanism 8, and the bottom of the right half area 1206 is fixedly connected to two symmetrically arranged baffles 1228, and a stirring mechanism 5 for stirring materials is arranged in the left half area 1205;The stirring mechanism 5 includes a third rotating shaft 501 rotatably connected to the side wall of the left half area 1205, and one end of the third rotating shaft 501 is fixedly connected to a rotating frame 502, and the side wall of the rotating frame 502 is fixedly connected to a plurality of stirring rods 503 arranged in an array, and the rotation of the third rotating shaft 501 is driven by the second driving mechanism 7. During production, the raw materials are placed in the material box 1210 for storage. When feeding is required, the discharge valve 1209 is opened. At this time, the raw materials in the material box 1210 enter the left half area 1205 through the discharge valve 1209. At the same time, the first fan 1213 is started. At this time, the raw materials can be blown out through the air inlet 1 The exhaust operation 215 can not only pre-cool the extrusion port 105, thereby improving the cooling efficiency and effect of the extruded material, but also absorb the residual heat. The hot air enters the first fixed cover 1211 through the exhaust pipe 1216, and enters the raw material in the material box 1210 through the first filter hole 1212. At the same time, it can also enter the left half area 1205 with the raw material, so that the raw material can be preheated. After the preheated raw material is discharged through the feed port 1207, it can be spread into a layer and enter the right half area 1206, and slide downward along the first inclined surface 1202 and the baffle 1228. When the electric heating plate 1208 is started, the raw material can be heated and softened, and the second rotating shaft 1217 and the rotating roller 1218 are driven to rotate by the first driving mechanism 8. When the heated and softened raw material slides downward along the first inclined surface 1202 to the bottom of the rotating roller 1218, it can be squeezed and deformed by the action of the protrusion 1219 and pass through the bottom of the rotating roller 1218. Then, it continues to slide along the first inclined surface 1202 and enters the barrel 103 through the feed port 1203 and the feeding port 106. The mixed miscellaneous materials that cannot be heated and softened can be pushed and deformed by the action of the protrusion 1219. Block one side of the rotating roller 1218, and drive the second moving block 1225 and the toggle plate 1226 to move back and forth through the second moving mechanism 9, so that the sundries that cannot be heated and softened on one side of the rotating roller 1218 can be toggled, and the raw materials softened after heating can pass through the rotating roller 1218 after extrusion and deformation, so that the sundries that cannot be heated and softened can enter the collection cover 1220 through the collection port 1227 for collection, so as to facilitate the removal of sundries that cannot be heated and softened in the raw materials, ensure the normal operation of the screw extruder body, and at the same time, reduce the probability of blockage of the extrusion port 105, and ensure the efficiency and effect of production. ;

[0025] The rotating mechanism 2 includes two symmetrically arranged fixed blocks 201 fixedly connected to the side walls of the extrusion port 105, and the opposite side walls of the two fixed blocks 201 are rotatably connected with a rotating block 203 through a fourth rotating shaft 202. The rotating block 203 is fixed to the side wall of the cover plate 1112, and the side wall fixed sleeve of the fourth rotating shaft 202 is provided with a gear 204. The side wall of the fixed block 201 is connected with a rack 205 through a moving component 3, and the rack 205 is meshed with the gear 204. When the extrusion port 105 is blocked, the first moving block 1114 and the moving rod 1102 move downward. At the same time, when the first moving block 1114 moves downward, the rack 205 is pushed downward by the moving component 3. When the rack 205 moves downward, it can push the gear 204 and the fourth rotating shaft 202 to rotate counterclockwise, and drive the cover plate 1112 to rotate downward and seal the outlet of the extrusion port 105, thereby avoiding the extrusion of more unqualified materials and avoiding the waste of materials.

[0026] The moving component 3 includes two symmetrically arranged second connecting blocks 301 fixedly connected to the side walls of the fixed block 201, and the opposite side walls of the two second connecting blocks 301 are fixedly connected to two symmetrically arranged guide rods 302, the side wall of each guide rod 302 is sleeved with a slider 303, and the rack 205 is fixed to the side wall of the slider 303, the side wall of each guide rod 302 is sleeved with a first spring 304, the side wall of the first moving block 1114 is fixedly connected to the first pushing block 306, and the top of the rack 205 is fixedly connected to the first pushing rod 305, when the first moving block 1114 moves downward, it drives the first pushing block 306 to move downward synchronously, and abuts against the upper end of the first pushing rod 305, thereby pushing the rack 205 to move downward.

[0027] The limiting mechanism 4 includes a second support plate 401 fixedly connected to the top of the extrusion port 105, and two symmetrically arranged second T-shaped guide rods 402 are inserted into the side wall of the second support plate 401, one end of the second T-shaped guide rod 402 is fixedly connected to a limiting block 403, the limiting block 403 includes a second inclined surface 404, and the side wall of each second T-shaped guide rod 402 is sleeved with a second spring 405, and the side wall of the second support plate 401 is fixedly connected to an electromagnet 406. Before extruding the material, the electromagnet 406 is energized. When the stop block 403 is attracted to move toward the direction close to the second support plate 401, the second spring 405 is compressed. After the material is discharged normally, the moving rod 1102 and the first moving block 1114 move upward, and the first pushing block 306 moves to the top of the stop block 403. Then, the electromagnet 406 is powered off. At this time, under the action of the second spring 405, the stop block 403 can be moved to the direction away from the second support plate 401 and reset under the action of the second spring 405 and is in the position of the first pushing block 30 6, when the extrusion port 105 is blocked, the first moving block 1114 and the moving rod 1102 move downward, and drive the first pushing block 306 to move downward synchronously. When the first pushing block 306 moves downward, it can slide downward along the second inclined surface 404, thereby pushing the limit block 403 to move in the direction close to the second support plate 401, and the second spring 405 is compressed. When the first pushing block 306 passes over the limit block 403, the limit block 403 can move and reset under the action of the second spring 405. The first push block 306 is made to abut against the bottom of the limit block 403, so that the first push block 306 can be limited, thereby limiting the moving rod 1102, and preventing the moving rod 1102 from moving upward as the internal pressure of the extrusion port 105 gradually increases after the outlet of the extrusion port 105 is blocked, thereby ensuring the accuracy of the test result. At the same time, the cover plate 1112 can be limited to ensure the blocking effect, and when the machine is shut down for maintenance, it is convenient for maintenance personnel to observe which extrusion port 105 is blocked.

[0028] The first driving mechanism 8 includes a second fixed plate 801 fixedly connected to the top of the shell 101, and the side wall of the second fixed plate 801 is fixedly connected to the first motor 802, the output end of the first motor 802 is fixedly connected to the rotating rod 803, and the side wall fixed sleeve of the rotating rod 803 is provided with a driving pulley 804, the side wall fixed sleeve of the second rotating shaft 1217 is provided with a driven pulley 805, and a belt 806 is sleeved between the driven pulley 805 and the driving pulley 804. The first motor 802 is started, and the rotation of the first motor 802 drives the rotating rod 803 to rotate, thereby driving the driving pulley 804 to rotate, and drives the driven pulley 805 and the second rotating shaft 1217 to rotate through the belt 806. When the second rotating shaft 1217 rotates, it drives the rotating roller 1218 to rotate.

[0029] The first moving mechanism 6 includes two symmetrically arranged third T-shaped guide rods 603 inserted into the side wall of the right half area 1206, and one end of the third T-shaped guide rod 603 is fixed to the side wall of the moving plate 1229, and the side wall of each third T-shaped guide rod 603 is sleeved with a third spring 604, and the side wall of the right half area 1206 is inserted with a second push rod 605, and one end of the second push rod 605 is fixed to the side wall of the moving plate 1229, and the other end of the second push rod 605 is fixedly connected to the connecting rod 1229. Plate 606, and the side wall of the connecting plate 606 is fixedly connected with the second pushing block 602, the side wall of the rotating rod 803 is fixedly sleeved with a rotating disk 607, and the end of the rotating disk 607 is fixedly connected with a plurality of conical blocks 601. When feeding, when the rotating rod 803 rotates, it can drive the rotating disk 607 to rotate synchronously. When the conical block 601 abuts against the side wall of the second pushing block 602, it can push the connecting plate 606 to move toward the direction close to the processing box 1201.

[0030] The second moving mechanism 9 includes two symmetrically arranged fourth T-shaped guide rods 901 inserted into the side wall of the right half area 1206, and one end of the fourth T-shaped guide rod 901 is fixed to the side wall of the second moving block 1225, and the side wall of each fourth T-shaped guide rod 901 is sleeved with a fourth spring 902, and the outer side wall of the right half area 1206 is fixedly connected to a support block 903, the side wall of the support block 903 is fixedly connected to a second motor 904, and the output end of the second motor 904 is fixedly connected to a winding wheel 905, and the side wall of the winding wheel 905 is fixedly connected to a pull rope 906, and the other end of the pull rope 906 passes through the right half area 1206 and is fixed to the side wall of the second moving block 1225, and the second motor 904 is started, and the rotation of the second motor 904 drives the rotation of the winding wheel 905, which can reel in the pull rope 906, thereby pulling the second moving block 1225 and the toggle plate 1226 to move in a direction close to the second motor 904.

[0031] The second driving mechanism 7 includes a connecting frame 702 fixedly connected to the side wall of the connecting plate 606, and the side wall of the connecting frame 702 is fixedly connected with a second push pin 703, the side wall of the third rotating shaft 501 is provided with a spiral groove 701, and the second push pin 703 is inserted in the spiral groove 701. When the connecting plate 606 moves back and forth, the second push pin 703 is driven by the connecting frame 702 to slide back and forth along the spiral groove 701, thereby pushing the third rotating shaft 501 to reciprocate. When the third rotating shaft 501 rotates back and forth, the stirring rod 503 is driven to rotate back and forth through the rotating frame 502, so that the material in the left half area 1205 can be stirred, and the efficiency and effect of discharging can be improved.

[0032] The reset mechanism 10 includes two symmetrically arranged fifth T-shaped guide rods 1001 inserted on the top of each first moving block 1114, and the lower end of the fifth T-shaped guide rod 1001 is fixed to the top of the extrusion port 105, and the side wall of each fifth T-shaped guide rod 1001 is sleeved with a fifth spring 1002, which guides and resets the movement of the first moving block 1114.

[0033] Working principle: When in use, the raw materials are placed in the material box 1210 for storage. When feeding is needed, the discharge valve 1209 is opened. At this time, the raw materials in the material box 1210 enter the left half area 1205 through the discharge valve 1209. At the same time, the first fan 1213 is started. At this time, the air can be exhausted through the air inlet hole 1215, which can not only pre-cool the extrusion port 105, thereby improving the cooling efficiency and effect of the extruded material, but also absorb the residual heat, and the hot air The air enters the first fixed cover 1211 through the exhaust pipe 1216, and enters the raw material in the material box 1210 through the first filter hole 1212. At the same time, it can also enter the left half area 1205 with the raw material, so that the raw material can be preheated. After the preheated raw material is discharged through the material port 1207, it can be spread into a layer and enter the right half area 1206, and slide downward along the first inclined surface 1202 and the baffle 1228. At the same time, the electric heating plate 1208 is started to heat the raw material and soften it. The first motor 802 is started, and the rotation of the first motor 802 drives the rotating rod 803 to rotate, thereby driving the driving pulley 804 to rotate, and driving the driven pulley 805 and the second rotating shaft 1217 to rotate through the belt 806. When the second rotating shaft 1217 rotates, the rotating roller 1218 is driven to rotate. When the heated and softened raw material slides downward along the first inclined surface 1202 to the bottom of the rotating roller 1218, the protrusion 1219 can move the raw material. After being squeezed and deformed and passing through the bottom of the rotating roller 1218, it continues to slide along the first inclined surface 1202 and enters the barrel 103 through the feed port 1203 and the feed port 106. The mixed miscellaneous materials that cannot be heated and softened can be pushed and blocked on one side of the rotating roller 1218 by the action of the protrusion 1219. In addition, the second motor 904 is started, and the rotation of the second motor 904 drives the rotation of the winding wheel 905, which can reel the pull rope 906, thereby pulling the second moving The block 1225 and the toggle plate 1226 move in the direction close to the second motor 904. At the same time, the fourth spring 902 is compressed. When the second motor 904 is reversed, the pull rope 906 can be loosened. At this time, under the action of the fourth spring 902, the second moving block 1225 and the toggle plate 1226 can move and reset. In this way, the second moving block 1225 can drive the toggle plate 1226 to move back and forth, so that the sundries that cannot be heated and softened on one side of the rotating roller 1218 can be toggled, and the raw materials softened after heating can pass through the rotating roller 1218 after extrusion and deformation, so that the sundries that cannot be heated and softened can enter the collecting cover 1220 through the collecting port 1227 for collection, so as to facilitate the removal of sundries that cannot be heated and softened in the raw materials, ensure the normal operation of the screw extruder body, and at the same time, reduce the probability of blockage of the extrusion port 105, ensure the efficiency and effect of production, and the extruded materials also need to enter the external cooling water tank for cooling; At the same time, when the rotating rod 803 rotates, it can drive the rotating disk 607 to rotate synchronously. When the conical block 601 abuts against the side wall of the second pushing block 602, it can push the connecting plate 606 to move in the direction close to the processing box 1201, and push the movable plate 1229 and the bristles 1230 to move through the second pushing rod 605. At the same time, the third spring 604 is compressed. When the conical block 601 passes over the second pushing block 602, the movable plate 1229 and the bristles 1230 can move and reset under the action of the third spring 604, and drive the connecting plate 606 to move and reset through the second pushing rod 605. In this way, the movable plate 1229 can drive the bristles 1230 to move back and forth. The second fan 1223 is started to extract air, and the dust in the raw material can be absorbed through the dust suction hole 1221, and the dust can be collected in the collection cover 1220 through the second filter hole 1231, so as to ensure the quality of production. In addition, when the connecting plate 606 reciprocates, the second push pin 703 is driven by the connecting frame 702 to slide reciprocatingly along the spiral groove 701, so as to push the third rotating shaft 501 to reciprocate. When the third rotating shaft 501 reciprocates, the stirring rod 503 is driven by the rotating frame 502 to reciprocate, so as to stir the material in the left half area 1205, so as to improve the efficiency and effect of discharging. Before material extrusion, the electromagnet 406 is energized, at this time, the attraction limit block 403 is moved in the direction close to the second support plate 401, and at the same time, the second spring 405 is compressed; the melted material is extruded through the extrusion port 105, at this time, under the action of pressure, the moving rod 1102 can be pushed to slide upward along the inner wall of the fixed tube 1101, and at the same time, the first moving block 1114 is driven to slide upward along the fifth T-shaped guide rod 1001, and the fifth spring 1002 is compressed. After normal material discharge, the moving rod 1102 and the first moving block 1114 move upward, and the first pushing block 306 moves to the top of the limit block 403, then, the electromagnet 406 is powered off, at this time, under the action of the second spring 405, the limit block 403 can be reset to the direction away from the second support plate 401 and be located below the first pushing block 306 under the action of the second spring 405; When the extrusion port 105 is blocked, the material extrusion amount becomes less, and the pressure on the moving rod 1102 becomes smaller. At this time, under the action of the fifth spring 1002, the moving rod 1102 and the first moving block 1114 can move downward and reset. At this time, when the first moving block 1114 moves downward, the first connecting block 1110 drives the first pushing pin 1111 to slide downward along the slide groove 1109, thereby pushing the rotating plate 1105 to rotate upward along the rotating pin 1104 and abut against the bottom of the L-shaped plate 1108, thereby pushing the L-shaped plate 1108 to move upward. At this time, it can be detected by the distance sensor 1115, so that when the extrusion port 105 is blocked, it can be detected in time, and an alarm can be sounded through the alarm 1113 to ensure the efficiency and quality of extrusion. At the same time, when the first moving block 1114 and the moving rod 1102 move downward, they can drive the first pushing block 306 to move downward synchronously and abut against the upper end of the first pushing rod 305, thereby pushing the rack 205 to move downward, and the first spring 304 is compressed. When the rack 205 moves downward, it can push the gear 204 and the fourth rotating shaft 202 to rotate counterclockwise, and drive the cover plate 1112 to rotate downward and block and seal the outlet of the extrusion port 105, thereby avoiding extrusion of more unqualified materials and waste of materials. Moreover, when the first pushing block 306 moves downward, it can slide downward along the second inclined surface 404; Thereby, the limit block 403 is pushed to move toward the direction close to the second support plate 401, and the second spring 405 is compressed. When the first push block 306 passes over the limit block 403, the limit block 403 can be moved and reset under the action of the second spring 405, and the first push block 306 is abutted against the bottom of the limit block 403, so that the first push block 306 can be limited, thereby limiting the moving rod 1102, and avoiding that after the outlet of the extrusion port 105 is blocked, as the internal pressure of the extrusion port 105 gradually increases, the moving rod 1102 moves upward, thereby ensuring the accuracy of the detection result. At the same time, the cover plate 1112 can be limited to ensure the blocking effect, and when the machine is shut down for maintenance, it is convenient for maintenance personnel to observe which extrusion port 105 is blocked.

Claims

1. A screw extruder with an alarm function, comprising a housing (101) and a drive module (102) arranged on a screw extruder body (1), wherein a barrel (103) is arranged in the housing (101), a screw body is arranged in the barrel (103), a feeding port (106) is arranged at the top of the barrel (103), an outlet of the barrel (103) is fixedly connected to a die head (104), and a side wall of the die head (104) is provided with a plurality of extrusion ports (105), characterized in that: The side wall of the shell (101) is provided with an alarm mechanism (11), and the alarm mechanism (11) is used to give an alarm when the extrusion port (105) is blocked. The top of the shell (101) is provided with a feeding mechanism (12), and the feeding mechanism (12) is used to feed raw materials into the feeding port (106); the alarm mechanism (11) comprises a fixed tube (1101) fixedly connected to the top of each extrusion port (105), and a moving rod (1102) is slidably connected in the fixed tube (1101). The upper end of the moving rod (1102) is fixedly connected to a first moving block (1114), and a reset mechanism (10) is provided between the first moving block (1114) and the extrusion port (105). The top of the fixed tube (1101) is fixedly connected to two symmetrically arranged first support plates (1103), and the side wall of the first support plate (1103) is rotatably connected to a rotating plate (1105) via a rotating pin (1104). The side wall of the rotating plate (1105) is provided with a sliding groove (1109), and the first moving block (1114) is fixedly connected to the extrusion port (105). The side wall of the block (1114) is fixedly connected to a first connecting block (1110), the side wall of the first connecting block (1110) is fixedly connected to a first pushing pin (1111), and the first pushing pin (1111) is inserted into the slide groove (1109), the side wall of the shell (101) is fixedly connected to a first fixing plate (1106), and two symmetrically arranged first T-shaped guide rods (1107) are inserted on the top of the first fixing plate (1106), and the lower end of the first T-shaped guide rod (1107) is fixedly connected to An L-shaped plate (1108) is provided, and a distance sensor (1115) is fixedly connected to the bottom of the first fixed plate (1106), an alarm (1113) is fixedly connected to the top of the shell (101), and the alarm (1113) is electrically connected to the distance sensor (1115), the side wall of the extrusion port (105) is rotatably connected to a cover plate (1112) via a rotating mechanism (2), and a limiting mechanism (4) is provided on the side wall of the extrusion port (105) for limiting the first moving block (1114).

2. A screw extruder with an alarm function according to claim 1, characterized in that: The feeding mechanism (12) comprises a processing box (1201) fixedly connected to the top of the shell (101), and a first inclined surface (1202) is provided at the bottom of the processing box (1201), a feeding port (1203) connected to the feeding port (106) is provided at the bottom of the first inclined surface (1202), and a partition (1204) is fixedly connected to the top of the processing box (1201), a feeding port (1207) is provided between the partition (1204) and the first inclined surface (1202), and an electric heating plate (1208) is embedded at the bottom of the feeding port (1207), and the partition (1204) divides the processing box (1201) into a left half area (1205) and a right half area (1206), and the left half area (1205) is provided with a heating plate (1208). A discharge valve (1209) is fixedly connected to the top of the discharge valve (1209), a material box (1210) is fixedly connected to the top of the discharge valve (1209), and a first fixed cover (1211) is fixedly inserted into the side wall of the material box (1210), a side of the first fixed cover (1211) located in the material box (1210) is provided with a plurality of first filter holes (1212) arranged in an array, and a first fan (1213) is fixedly connected to the side wall of the first fixed cover (1211), a second fixed cover (1214) is fixedly connected to the side wall of the extrusion port (105), and a plurality of air inlet holes (1215) arranged in an array are provided at the bottom of the second fixed cover (1214), and a first fan (1213) and a second fixed cover (1214) are fixedly connected to each other. An exhaust pipe (1216) is connected, and a collection cover (1220) is arranged at the bottom of the right half area (1206); a third fixed cover (1222) is fixedly inserted into the side wall of the collection cover (1220), and a plurality of second filter holes (1231) are provided on one side of the third fixed cover (1222) located inside the collection cover (1220); a second fan (1223) is fixedly connected to the side wall of the third fixed cover (1222), and an air outlet pipe (1224) is fixedly connected to the side wall of the second fan (1223); a plurality of dust suction holes (1221) are provided at the bottom of the right half area (1206), and the dust suction holes (1221) are connected to the collection cover (1220); and the right half area (1206) is provided with a first moving mechanism (6). A movable plate (1229) is connected, and a plurality of bristles (1230) are fixedly connected to the bottom of the movable plate (1229); two symmetrically arranged collecting ports (1227) are provided at the bottom of the right half zone (1206); the collecting ports (1227) are in communication with the collecting cover (1220); the side wall of the right half zone (1206) is connected to a second movable block (1225) via a second movable mechanism (9); the side wall of the second movable block (1225) is fixedly connected to an L-shaped toggle plate (1226); the side wall of the right half zone (1206) is rotatably connected to a rotating roller (1218) via a second rotating shaft (1217); and the side wall of the rotating roller (1218) is fixedly connected to a plurality of hemispherical protrusions (1219);The rotation of the second rotating shaft (1217) is driven by the first driving mechanism (8); the bottom of the right half area (1206) is fixedly connected to two symmetrically arranged baffles (1228); and a stirring mechanism (5) for stirring the material is arranged in the left half area (1205); the stirring mechanism (5) comprises a third rotating shaft (501) rotatably connected to the side wall of the left half area (1205); one end of the third rotating shaft (501) is fixedly connected to a rotating frame (502); the side wall of the rotating frame (502) is fixedly connected to a plurality of stirring rods (503) arranged in an array; and the rotation of the third rotating shaft (501) is driven by the second driving mechanism (7).

3. A screw extruder with an alarm function according to claim 1, characterized in that: The rotating mechanism (2) comprises two symmetrically arranged fixed blocks (201) fixedly connected to the side walls of the extrusion port (105), and the opposite side walls of the two fixed blocks (201) are rotatably connected to a rotating block (203) via a fourth rotating shaft (202), the rotating block (203) is fixed to the side wall of the cover plate (1112), and the side wall fixed sleeve of the fourth rotating shaft (202) is provided with a gear (204), the side wall of the fixed block (201) is connected to a rack (205) via a moving component (3), and the rack (205) is meshed with the gear (204).

4. A screw extruder with an alarm function according to claim 3, characterized in that: The moving assembly (3) comprises two symmetrically arranged second connecting blocks (301) fixedly connected to the side wall of the fixed block (201), and the opposite side walls of the two second connecting blocks (301) are fixedly connected to two symmetrically arranged guide rods (302), the side wall of each guide rod (302) is sleeved with a slider (303), and the rack (205) is fixed to the side wall of the slider (303), the side wall of each guide rod (302) is sleeved with a first spring (304), the side wall of the first moving block (1114) is fixedly connected to a first pushing block (306), and the top of the rack (205) is fixedly connected to the first pushing rod (305).

5. The screw extruder with an alarm function according to claim 1, characterized in that: The limiting mechanism (4) comprises a second support plate (401) fixedly connected to the top of the extrusion port (105), and two symmetrically arranged second T-shaped guide rods (402) are inserted into the side wall of the second support plate (401), one end of the second T-shaped guide rod (402) is fixedly connected to a limiting block (403), the limiting block (403) comprises a second inclined surface (404), and the side wall of each second T-shaped guide rod (402) is sleeved with a second spring (405), and the side wall of the second support plate (401) is fixedly connected to an electromagnet (406).

6. A screw extruder with an alarm function according to claim 1, characterized in that: The first driving mechanism (8) comprises a second fixed plate (801) fixedly connected to the top of the housing (101), and the side wall of the second fixed plate (801) is fixedly connected to a first motor (802), the output end of the first motor (802) is fixedly connected to a rotating rod (803), and the side wall fixed sleeve of the rotating rod (803) is provided with a driving pulley (804), the side wall fixed sleeve of the second rotating shaft (1217) is provided with a driven pulley (805), and a belt (806) is sleeved between the driven pulley (805) and the driving pulley (804).

7. A screw extruder with an alarm function according to claim 6, characterized in that: The first moving mechanism (6) comprises two symmetrically arranged third T-shaped guide rods (603) inserted into the side wall of the right half zone (1206), one end of the third T-shaped guide rod (603) is fixed to the side wall of the moving plate (1229), and the side wall of each third T-shaped guide rod (603) is sleeved with a third spring (604); a second push rod (605) is inserted into the side wall of the right half zone (1206), one end of the second push rod (605) is fixed to the side wall of the moving plate (1229), the other end of the second push rod (605) is fixedly connected to the connecting plate (606), and the side wall of the connecting plate (606) is fixedly connected to the second push block (602); the side wall of the rotating rod (803) is fixedly sleeved with a rotating disk (607), and the end of the rotating disk (607) is fixedly connected to a plurality of conical blocks (601).

8. The screw extruder with an alarm function according to claim 2, characterized in that: The second moving mechanism (9) comprises two symmetrically arranged fourth T-shaped guide rods (901) inserted into the side wall of the right half area (1206), and one end of the fourth T-shaped guide rod (901) is fixed to the side wall of the second moving block (1225), and the side wall of each of the fourth T-shaped guide rods (901) is sleeved with a fourth spring (902), and the outer side wall of the right half area (1206) is fixedly connected to a support block (903), the side wall of the support block (903) is fixedly connected to a second motor (904), and the output end of the second motor (904) is fixedly connected to a winding wheel (905), and the side wall of the winding wheel (905) is fixedly connected to a pull rope (906), and the other end of the pull rope (906) passes through the right half area (1206) and is fixed to the side wall of the second moving block (1225).

9. The screw extruder with an alarm function according to claim 7, characterized in that: The second driving mechanism (7) comprises a connecting frame (702) fixedly connected to the side wall of the connecting plate (606), and a second pushing pin (703) is fixedly connected to the side wall of the connecting frame (702), and a spiral groove (701) is formed on the side wall of the third rotating shaft (501), and the second pushing pin (703) is inserted into the spiral groove (701).

10. The screw extruder with an alarm function according to claim 1, characterized in that: The reset mechanism (10) comprises two symmetrically arranged fifth T-shaped guide rods (1001) inserted on the top of each first moving block (1114), and the lower end of the fifth T-shaped guide rod (1001) is fixed to the top of the extrusion port (105), and the side wall of each fifth T-shaped guide rod (1001) is sleeved with a fifth spring (1002).

Images