A device for servicing an injection molding machine

Abstract

A kind of for injection molding machine maintenance equipment, including base mechanism, heating mechanism, cleaning mechanism, screwing mechanism, screw cleaning mechanism;The heating mechanism is installed on base mechanism, screwing mechanism is rotatably installed on base mechanism, and cleaning mechanism is fixedly installed on screwing mechanism;Screw cleaning mechanism is fixedly installed on screwing mechanism;Limiting seat is equipped with cylinder one, and plastic collecting groove is slidably installed on the cylinder on limiting seat;Plastic collecting groove is equipped with limiting cylinder, and ladder type sliding block is fixedly installed on limiting cylinder.The injection tube of the present application can be heated externally for being installed on injection molding machine, then the plastic cooled and solidified in injection tube is extruded;Also, the screw and injection tube inside of injection molding machine can be repaired and cleaned by removing part of injection molding machine, improve work efficiency.

Description

Technical Field

[0001] This invention relates to the field of maintenance equipment technology, and in particular to a maintenance equipment for injection molding machines. Background Technology

[0002] Injection molding machines, also known as injection molding machines or injection molding machines, are the main molding equipment used to produce various shapes of plastic products from thermoplastic or thermosetting plastics using plastic molds.

[0003] The function of the injection system: The injection system is one of the most important components of an injection molding machine, and there are generally three main types: plunger type, screw type, and screw pre-plasticizing plunger injection type. Currently, the screw type is the most widely used. Its function is to heat and plasticize a certain amount of plastic within a specified time during one cycle of the injection molding machine, and then inject the molten plastic into the mold cavity through the screw under certain pressure and speed. After injection, it maintains the shape of the molten material injected into the mold cavity.

[0004] However, when existing screw injection molding machines are shut down and then used again, or when new materials need to be replaced, the plastic solidifies in the injection tube, so the injection tube needs to be disassembled for cleaning and maintenance when used again. Currently, the maintenance of injection molding pipes relies on manual repair of the screw and injection molding pipe. During manual repair, the cleaning speed of the screw and injection molding pipe is slow and the cleaning is not thorough. Therefore, there is a need for a device that can automatically maintain and clean the screw and injection molding pipe of the injection molding machine. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a maintenance device for injection molding machines. This invention can externally heat the injection tube installed on the injection molding machine and then extrude the plastic that has cooled and solidified in the injection tube; it can also partially disassemble the injection molding machine to perform maintenance and cleaning on the screw and the inside of the injection tube, thereby improving work efficiency.

[0006] This invention can perform external heating maintenance on the injection tube installed on the injection molding machine, and then extrude the plastic that has cooled and solidified in the injection tube; it can also remove part of the injection molding machine to perform maintenance and cleaning on the screw and the inside of the injection tube, thus improving work efficiency. The technical solution used in this invention is: a maintenance equipment for injection molding machines, comprising a base mechanism, a heating mechanism, a cleaning mechanism, a screwing mechanism, and a screw rod cleaning mechanism; the heating mechanism is mounted on the base mechanism, the screwing mechanism is rotatably mounted on the base mechanism, the cleaning mechanism is fixedly mounted on the screwing mechanism, and the screw rod cleaning mechanism is fixedly mounted on the screwing mechanism; The heating mechanism includes a heating semicircular ring, a limiting shaft, a first driving electric cylinder, a plastic collecting groove, a trapezoidal slider, a limiting cylinder, a first spring, a ejector pin, and a limiting seat. Both heating semicircular rings are slidably mounted on the sliding plate of the base mechanism. A limiting shaft is provided on one of the heating semicircular rings, and the other heating semicircular ring is slidably mounted on the limiting shaft. The first driving electric cylinder is fixedly connected to both heating semicircular rings at both ends. The limiting seat is slidably mounted on the cylinder of the heating semicircular ring, and a first cylinder is provided on the limiting seat. The plastic collecting groove is slidably mounted on the first cylinder on the limiting seat. A limiting cylinder is provided on the plastic collecting groove, and a trapezoidal slider is fixedly mounted on the limiting cylinder.

[0007] Specifically, one end of the spring contacts the limiting seat, and the other end of the spring contacts the plastic collection groove; a pin is provided on the plastic collection groove.

[0008] Specifically, the base mechanism includes a base plate, a drive motor, an electric cylinder, a telescopic sleeve, and a sliding plate. The base plate is equipped with casters on its underside. The drive motor is mounted on the base plate. The lower end of the telescopic sleeve is fixedly installed on the base plate, and the upper end of the telescopic sleeve is fixedly connected to the sliding plate. The bottom of the electric cylinder is fixedly installed on the base plate, and the end of its piston rod is fixedly connected to the sliding plate.

[0009] Specifically, the cleaning mechanism includes a square plate 1, a square plate 2, a square plate 3, a drive gear 1, a drive motor 2, a limiting sleeve, a cleaning rod, a fixed shaft, a clamping plate, and a sliding sleeve; the square plate 1 and the square plate 3 are fixedly connected by a connecting rod; the square plate 2 is slidably mounted on the connecting rod between the square plate 1 and the square plate 3; a spring is installed between the square plate 2 and the square plate 1; a motor is mounted on the square plate 2, and the motor shaft is fixedly connected to the drive gear 1; the square plate 2 is slidably mounted in the groove of the connecting plate of the screwing mechanism; the drive gear 1 meshes with the rack on the connecting plate. The limiting sleeve is rotatably mounted on the square plate three; the drive motor two is fixedly mounted on the side of the limiting sleeve, and its motor shaft is fixedly connected to a gear, which meshes with the gear fixed on the square plate three; the fixed shaft is fixedly connected to the cleaning rod; the fixed shaft is rotatably mounted on the limiting sleeve; a motor is provided on the limiting sleeve, and the motor drives the fixed shaft to rotate through a belt; the clamping plate is rotatably mounted in the groove of the fixed shaft; the sliding sleeve is slidably mounted on the fixed shaft; an electric cylinder is provided on the fixed shaft, one end of the electric cylinder is fixedly mounted on the fixed shaft, and the end of its piston rod is fixedly connected to the sliding sleeve.

[0010] Specifically, the screwing mechanism includes a fixed plate, a support column, a T-shaped plate, a second drive cylinder, a third drive cylinder, a driven gear, a sleeve plate, a second spring, a second drive gear, a third drive motor, and a connecting plate. The lower end of the fixed plate is fixedly mounted on the motor shaft of the first drive motor. The support column is fixedly mounted on the fixed plate. The T-shaped plate is slidably mounted on the support column. The bottom of the second drive cylinder is fixedly mounted on the T-shaped plate, and the end of the piston rod of the second drive cylinder is fixedly connected to the fixed plate. The bottom of the third drive cylinder is fixedly mounted on the T-shaped plate, and a U-shaped frame is installed at the end of its piston rod. The U-shaped frame is fixedly connected to the sleeve plate by a rope. The sleeve plate is slidably mounted in the round hole of the T-shaped plate, and the driven gear is slidably mounted on the sleeve plate. One end of the second spring contacts the sleeve plate, and the other end contacts the driven gear. The third drive motor is fixedly mounted on the T-shaped plate, and the motor shaft of the third drive motor is fixedly connected to the second drive gear, which meshes with the driven gear. The connecting plate is fixedly mounted on the support column.

[0011] Specifically, the spiral rod cleaning mechanism includes a mounting base, a cleaning plate, a tightening nut, and a scale, with the mounting base fixedly installed on a support column.

[0012] Specifically, there are two cleaning plates that are slidably mounted on the mounting base; one of them is equipped with a scale, and a nut is tightened to rotate and mount it on one of the cleaning plates; the distance between the two cleaning plates is adjusted by the worker to fit the thread pitch of the injection molding machine's auger, and then the nut is rotated to fix the two cleaning plates relative to each other.

[0013] The beneficial effects of this invention are: 1. This invention can perform external heating maintenance on the injection tube installed on the injection molding machine, and then extrude the dried plastic in the injection tube; it can also remove part of the injection molding machine to perform maintenance and cleaning on the screw and the inside of the injection tube, thus improving work efficiency; 2. This invention brings the threads of the auger into contact with the cleaning plate. Then, driven by the motor of the limiting sleeve, the fixed shaft rotates, causing the auger to rotate. The threads of the auger engage with the cleaning plate, and the rotation of the auger pushes the cleaning plate to move, scraping out the plastic between the threads of the auger. This achieves a clean and thorough cleaning of the auger, improving the cleaning quality.

[0014] 3. This invention uses a motor on the square plate 2 to drive a drive gear 1, which in turn moves the entire cleaning mechanism so that the cleaning rod is inserted into the injection molding tube. The molten plastic in the injection molding tube is then extruded through the extrusion port of the injection molding tube, thereby completing the cleaning and maintenance of the injection molding tube and realizing automated maintenance of injection molding tubes. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the working structure of the present invention.

[0016] Figure 2 This is a schematic diagram of the overall structure of the present invention.

[0017] Figure 3 This is a schematic diagram of the base mechanism of the present invention.

[0018] Figure 4 This is a schematic diagram of the heating mechanism of the present invention.

[0019] Figure 5 For the present invention Figure 4 A magnified schematic diagram of a local structure.

[0020] Figure 6 This is a schematic diagram of the screwing mechanism of the present invention.

[0021] Figure 7 For the present invention Figure 6 A magnified schematic diagram of a local structure.

[0022] Figure 8 This is a schematic diagram showing the positions of the cleaning mechanism, the turning mechanism, and the screw rod cleaning mechanism of the present invention.

[0023] Figure 9 This is a first-angle schematic diagram of the cleaning mechanism of the present invention.

[0024] Figure 10 This is a second-angle schematic diagram of the cleaning mechanism of the present invention.

[0025] Figure 11 For the present invention Figure 10 A magnified schematic diagram of a local structure.

[0026] Figure 12 This is a schematic diagram of the first angle of the screwing mechanism of the present invention.

[0027] Figure 13 This is a schematic diagram of the second angle of the screwing mechanism of the present invention.

[0028] Figure 14 This is a schematic diagram of the screw rod cleaning mechanism of the present invention.

[0029] Figure 15 This is a schematic diagram of the injection molding machine part of the present invention.

[0030] Reference numerals: 1-Base mechanism; 2-Heating mechanism; 3-Cleaning mechanism; 4-Twisting mechanism; 5-Screw rod cleaning mechanism; 6-Injection molding machine part; 101-Base plate; 102-Drive motor one; 103-Electric cylinder one; 104-Telescopic sleeve; 105-Sliding plate; 201-Heating semi-circular ring; 202-Limiting shaft; 203-Drive electric cylinder one; 204-Plastic collection tank; 205-Trapezoidal slider; 206-Limiting cylinder; 207-Spring one; 208-Ejector pin; 209-Limiting seat; 301-Square plate one; 302-Square plate two; 303-Square plate three; 304-Drive gear Wheel 1; 305-Drive Motor 2; 306-Limit Sleeve; 307-Cleaning Rod; 308-Fixed Shaft; 309-Clamping Plate; 310-Sliding Sleeve; 401-Fixed Plate; 402-Support Column; 403-T-Shaped Plate; 404-Drive Cylinder 2; 405-Drive Cylinder 3; 406-Passive Gear; 407-Sleeve Wrench; 408-Spring 2; 409-Drive Gear 2; 410-Drive Motor 3; 411-Connecting Plate; 501-Mounting Base; 502-Cleaning Plate; 503-Tightening Nut; 504-Scale; 601-Injection Molding Tube; 602-Screw Rod; 603-Screw. Detailed Implementation

[0031] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] like Figure 15 As shown, the injection molding machine part 6 includes an injection tube 601, a screw rod 602, and a screw 603. The screw rod 602 is rotatably installed in the injection tube 601, and the screw 603 is rotatably installed at the rear end of the injection tube 601.

[0033] Implementation, for example Figure 1-14 As shown, a maintenance device for an injection molding machine is characterized by comprising a base mechanism 1, a heating mechanism 2, a cleaning mechanism 3, a screwing mechanism 4, and a spiral rod cleaning mechanism 5. The heating mechanism 2 is mounted on the base mechanism 1, the screwing mechanism 4 is rotatably mounted on the base mechanism 1, and the cleaning mechanism 3 is fixedly mounted on the screwing mechanism 4. The spiral rod cleaning mechanism 5 is fixedly mounted on the screwing mechanism 4. The base mechanism 1 provides support, the heating mechanism 2 heats the injection molding tube 601, the screwing mechanism 4 unscrews the screw 603, the cleaning mechanism 3 clamps the spiral rod 602 and cleans the inside of the injection molding tube 601, and the spiral rod cleaning mechanism 5 cleans the spiral rod 602.

[0034] like Figure 3 As shown, the base mechanism 1 includes a base plate 101, a drive motor 102, an electric cylinder 103, a telescopic sleeve 104, and a sliding plate 105. The base plate 101 is equipped with casters, allowing the entire device to move by pushing the base plate 101. The drive motor 102 is mounted on the base plate 101. The lower end of the telescopic sleeve 104 is fixedly installed on the base plate 101, and the upper end of the telescopic sleeve 104 is fixedly connected to the sliding plate 105. The bottom of the electric cylinder 103 is fixedly installed on the base plate 101, and the end of its piston rod is fixedly connected to the sliding plate 105. The device is moved below the injection molding machine by a maintenance worker or machine, and then the heating mechanism 2 is moved upwards to below the injection molding machine section 6 by the telescopic extension of the electric cylinder 103.

[0035] like Figure 4-7As shown, the heating mechanism 2 includes a heating semicircular ring 201, a limiting shaft 202, a drive electric cylinder 203, a plastic collecting groove 204, a trapezoidal slider 205, a limiting cylinder 206, a spring 207, a ejector pin 208, and a limiting seat 209. Both heating semicircular rings 201 are slidably mounted on the sliding plate 105 of the base mechanism 1. A limiting shaft 202 is provided on one of the heating semicircular rings 201, and the other heating semicircular ring 201 is slidably mounted on the limiting shaft 202. The two ends of the drive electric cylinder 203 are fixedly connected to the two heating semicircular rings 201 respectively. The limiting seat 209... 09 is slidably mounted on the cylinder of the heating semicircular ring 201. A cylinder is provided on the limiting seat 209, and a plastic collecting groove 204 is slidably mounted on the cylinder on the limiting seat 209. A limiting cylinder 206 is provided on the plastic collecting groove 204, and a trapezoidal slider 205 is fixedly mounted on the limiting cylinder 206. One end of a spring 207 contacts the limiting seat 209, and the other end of the spring 207 contacts the plastic collecting groove 204. A ejector pin 208 is provided on the plastic collecting groove 204. The ejector pin 208 is used to open the discharge hole of the injection molding tube 601. In use, firstly, the electric cylinder 203 is extended to open the two... The heating semicircular ring 201 is pushed open, and then the electric cylinder 103 extends, positioning the heating semicircular ring 201 on both sides of the injection tube 601. Then, the driving electric cylinder 203 retracts, causing the two heating semicircular rings 201 to retract and enclose the injection tube 601. As the heating semicircular rings 201 move towards each other, the inclined plates on the heating semicircular rings 201 contact the trapezoidal slider 205. The trapezoidal slider 205 moves towards the driving electric cylinder 203, pulling the limiting cylinder 206, thereby causing the ejector pin 208 to insert into the outlet of the injection tube 601, thus preventing blockage of the outlet of the injection tube 601. At this time, spring 2... 07. Compression is performed, and then the heating semicircular ring 201 is energized to heat the outside of the injection tube 601. After heating for a period of time, the auger 602 of the injection molding machine rotates under the drive of the injection molding machine to extrude the dried plastic in the injection tube 601. The plastic falls into the plastic collection tank 204 through the extrusion port of the injection tube 601. After cleaning, the drive cylinder 103 extends to push open the two heating semicircular rings 201. The plastic collection tank 204 leaves the extrusion port of the injection tube 601 under the elastic force of the spring 207. Then the electric cylinder 103 retracts to drive the sliding plate 105 and thus drive the heating mechanism 2 to move down.

[0036] like Figure 9-11As shown, the cleaning mechanism 3 includes a square plate 301, a square plate 302, a square plate 303, a drive gear 304, a drive motor 305, a limiting sleeve 306, a cleaning rod 307, a fixed shaft 308, a clamping plate 309, and a sliding sleeve 310. The square plate 301 and the square plate 303 are fixedly connected by a connecting rod. The square plate 302 is slidably mounted on the connecting rod between the square plate 301 and the square plate 303. A spring is installed between the square plate 302 and the square plate 301. A motor is mounted on the square plate 302, and the motor shaft is fixedly connected to the drive gear 304. The square plate 302 is slidably mounted in the groove of the connecting plate 411 of the screwing mechanism 4. The drive gear 304 meshes with the rack on the connecting plate 411. The limiting sleeve 306 is rotatably mounted on the square plate 303. The drive motor 305 is fixedly mounted on the side of the limiting sleeve 306. The motor shaft is fixedly connected to the gear, and the gear meshes with the gear fixed on the square plate 303. Driven by the second drive motor 305, the limiting sleeve 306 rotates 180°, thus completing the reversal. The fixed shaft 308 is fixedly connected to the cleaning rod 307. The fixed shaft 308 is rotatably mounted on the limiting sleeve 306. A motor is mounted on the limiting sleeve 306, and the motor drives the fixed shaft 308 to rotate via a belt. The clamping plate 309 is rotatably mounted on the fixed shaft 306. In the groove of 8; the sliding sleeve 310 is slidably installed on the fixed shaft 308. The sliding sleeve 310 moves towards the clamping plate 309 and presses down the clamping plate 309 to clamp the spiral rod 602; an electric cylinder is provided on the fixed shaft 308. One end of the electric cylinder is fixedly installed on the fixed shaft 308, and its piston rod end is fixedly connected to the sliding sleeve 310; the extension and retraction of the electric cylinder drives the sliding sleeve 310 to press down the clamping plate 309, so that the clamping plate 309 clamps the spiral rod 602; The motor on the square plate 302 drives the drive gear 304, which in turn moves the cleaning mechanism 3 as a whole. The drive motor 305 drives the limit sleeve 306, which in turn drives the cleaning rod 307 and the fixed shaft 308 to rotate 180°, thus achieving two switching. The electric cylinder on the fixed shaft 308 drives the sliding sleeve 310, which in turn presses the clamping plate 309 inward, thus clamping the spiral rod 602.

[0037] like Figure 12-13As shown, the screwing mechanism 4 includes a fixed plate 401, a support column 402, a T-shaped plate 403, a second drive cylinder 404, a third drive cylinder 405, a driven gear 406, a sleeve plate 407, a second spring 408, a second drive gear 409, a third drive motor 410, and a connecting plate 411. The lower end of the fixed plate 401 is fixedly mounted on the motor shaft of the first drive motor 102. The support column 402 is fixedly mounted on the fixed plate 401. The T-shaped plate 403 is slidably mounted on the support column 402. The bottom of the cylinder body of the second drive cylinder 404 is fixedly mounted on the T-shaped plate 403, and the end of the piston rod of the second drive cylinder 404 is fixedly connected to the fixed plate 401. The bottom of the cylinder body of the third drive cylinder 405 is fixedly mounted on the T-shaped plate 403, and a U-shaped... The frame, a U-shaped frame, is fixedly connected to the sleeve plate 407 by ropes; the sleeve plate 407 is slidably installed in the round hole of the T-shaped plate 403, and the driven gear 406 is slidably installed on the sleeve plate 407; one end of the second spring 408 contacts the sleeve plate 407, and the other end contacts the driven gear 406. The second spring 408 generates elastic force, causing the sleeve plate 407 to move away from the driven gear 406; the third drive motor 410 is fixedly installed on the T-shaped plate 403, and the motor shaft of the third drive motor 410 is fixedly connected to the second drive gear 409. The second drive gear 409 and the driven gear 406 mesh with each other; baffles are provided on both sides of the second drive gear 409 to limit the driven gear 406, thereby ensuring that the driven gear 406 always meshes with the second drive gear 409; the connecting plate 411 is fixedly installed on the support column 402.

[0038] The drive motor 102 drives the fixed plate 401, which in turn drives the screwing mechanism 4, cleaning mechanism 3, and screw rod cleaning mechanism 5 to rotate by an angle, thereby preventing interference between the cleaning mechanism 3, screwing mechanism 4, and screw rod cleaning mechanism 5 and the injection molding machine. When the screw rod 602 needs to be cleaned, the drive cylinder 405 extends, causing the sleeve plate 407 to overcome the elastic force of the spring 408 and move towards the drive motor 410. The extension of the drive cylinder 404 causes the T-plate 403 to rise, positioning the sleeve plate 407 behind the screw 603. The drive cylinder 405 retracts, and the sleeve plate 407 engages with the screw 603 under the elastic force of the spring 408. The drive motor 410 drives the drive gear 409, which in turn drives the driven gear 406 to rotate, causing the sleeve plate 407 to rotate and the screw 603 to come off. Then, the drive cylinder 405 extends, moving the sleeve plate 407 and the screw 603 to the outside of the screw rod 602. Then, the drive cylinder 404 retracts, causing the T-plate 403 to move down, which in turn moves the sleeve plate 407 and the screw 603 down, making room for the next operation.

[0039] like Figure 14As shown, the auger cleaning mechanism 5 includes a mounting base 501, a cleaning plate 502, a tightening nut 503, and a scale 504. The mounting base 501 is fixedly mounted on the support column 402. There are two cleaning plates 502, which are slidably mounted on the mounting base 501. A scale 504 is provided on one of them, and the tightening nut 503 is rotatably mounted on one of the cleaning plates 502. The distance between the two cleaning plates 502 is adjusted by the worker to adapt to the thread pitch of the auger 602 of the injection molding machine, and then the tightening nut 503 is rotated to fix the two cleaning plates 502 relative to each other.

[0040] Working Principle: When the injection molding machine is not in use, the injection tube 601 often becomes clogged. When only heating is needed to repair the injection tube 601, the drive motor 102 drives the fixed plate 401, which in turn drives the twisting mechanism 4, cleaning mechanism 3, and spiral rod cleaning mechanism 5 to rotate at an angle to prevent interference between the cleaning mechanism 3, twisting mechanism 4, and spiral rod cleaning mechanism 5 and the injection molding machine. Then, the drive cylinder 203 extends to push open the two heating semicircular rings 201, and the base plate 101 extends to position the heating semicircular rings 201 on both sides of the injection tube 601. Then, the drive cylinder 203 retracts, causing the two heating semicircular rings 201 to retract and wrap around the injection tube 601. When the heating semicircular rings 201 move towards each other, the inclined plate on the heating semicircular rings 201 contacts the trapezoidal slider 205. 205 moves towards the drive cylinder 203, thereby pulling the limiting cylinder 206, which in turn causes the ejector pin 208 to be inserted into the outlet of the injection tube 601, thus preventing the outlet of the injection tube 601 from being blocked; at this time, the spring 207 is compressed, and then the heating semi-circular ring 201 is energized to heat the outside of the injection tube 601. After heating for a period of time, the auger 602 of the injection molding machine rotates under the drive of the injection molding machine to extrude the dried plastic in the injection tube 601. The plastic falls into the plastic collection tank 204 through the extrusion port of the injection tube 601. After cleaning, the drive cylinder 203 extends to push open the two heating semi-circular rings 201. The plastic collection tank 204 leaves the extrusion port of the injection tube 601 under the elastic force of the spring 207. Then the cylinder 103 retracts, driving the sliding plate 105 to move the heating mechanism 2 downward. When a blockage in the injection molding machine part 6 needs to be completely repaired, the worker removes the injection molding machine part 6 and places it between the two heating semicircular rings 201. Then, the drive cylinder 203 retracts, causing the two heating semicircular rings 201 to retract and wrap around the injection tube 601. The heating semicircular rings 201 then move towards each other, causing the inclined plates on the heating semicircular rings 201 to contact the trapezoidal slider 205. The trapezoidal slider 205 moves towards the drive cylinder 203, pulling the limiting cylinder 206, which in turn causes the ejector pin 208 to be inserted into the outlet of the injection tube 601, thus preventing the outlet of the injection tube 601 from becoming blocked. At this time, the spring 207 is compressed, and the heating semicircular rings 201 are energized to heat the outside of the injection tube 601. Simultaneously, drive motor 102 operates, causing the screwing mechanism 4 to rotate, positioning it behind the injection molding machine section 6. Drive cylinder 3 405 extends, causing it to retract, which in turn moves the sleeve plate 407 against the elastic force of spring 2 408 towards drive motor 3 410. Drive cylinder 2 404 extends, causing the T-plate 403 to rise, positioning the sleeve plate 407 behind screw 603. Then, drive cylinder 3 405 retracts, and the sleeve plate 407, under the elastic force of spring 2 408... Under the action of the screw 603, the drive motor 410 drives the drive gear 409 to rotate, which in turn drives the driven gear 406 to rotate, causing the sleeve plate 407 to rotate and the screw 603 to be rotated down. Then, the drive cylinder 405 extends to move the sleeve plate 407 and the screw 603 to the outside of the screw rod 602. Then, the drive cylinder 404 retracts to move the T-plate 403 down, which in turn moves the sleeve plate 407 and the screw 603 down, making room for the next operation.

[0041] The motor on the second square plate 302 drives the drive gear 304, thereby moving the entire cleaning mechanism 3. This moves the circular hole of the fixed shaft 308 to the outside of the spiral rod 602. The electric cylinder on the fixed shaft 308 drives the sliding sleeve 310, pressing the clamping plate 309 inward, thus clamping the spiral rod 602. Then, the motor on the second square plate 302 drives the drive gear 304, causing the spiral rod 602 to move away from the injection tube 601. When the motor on the second square plate 302 drives the drive gear 304, moving the fixed shaft 308 and the spiral rod 602 to the leftmost side of the connecting plate 411, the inclined surface of the outer side of the first square plate 301 contacts the inclined surface on the connecting plate 411. This causes the first square plate 301 to overcome the spring force, moving the cleaning rod 307 and the fixed shaft 308 towards the spiral rod cleaning mechanism 5, so that the thread of the spiral rod 602 contacts the cleaning plate 502 (e.g., ...). Figure 8As shown in the diagram, the fixed shaft 308 rotates under the motor drive of the limiting sleeve 306, which in turn rotates the spiral rod 602. The spiral rod 602 then engages with the cleaning plate 502 through its thread, causing the cleaning plate 502 to move as the spiral rod 602 rotates, thus scraping out the plastic between the threads of the spiral rod 602. After scraping, the drive motor 305 drives the limiting sleeve 306, which in turn drives the cleaning rod 307 and the fixed shaft 308 to rotate 180°, so that the cleaning rod 307 is facing the injection tube 601. Then, the motor on the square plate 302 drives the drive gear 304, which in turn moves the entire cleaning mechanism 3, causing the cleaning rod 307 to be inserted into the injection tube 601. The molten plastic in the injection tube 601 is then extruded through the extrusion port of the injection tube 601, thus completing the cleaning and maintenance.

[0042] After cleaning and maintenance are completed, drive motor 305 drives limit sleeve 306, which in turn drives cleaning rod 307 and fixed shaft 308 to rotate 180°, so that the cleaned spiral rod 602 is facing the injection tube 601. Then, the motor on square plate 302 drives drive gear 304, which in turn moves the entire cleaning mechanism 3, inserting spiral rod 602 into injection tube 601. The electric cylinder on fixed shaft 308 drives sliding sleeve 310 to release clamping plate 309, which in turn releases spiral rod 602. Then, fixed shaft 308 is pulled out by the motor on square plate 302. The next step involves extending the second electric cylinder 404, which in turn raises the T-plate 403 so that the screw 603 held by the sleeve plate 407 is positioned behind the screw 603. Then, the third electric cylinder 405 retracts, and the sleeve plate 407 engages with the screw 603 under the elastic force of the second spring 408. The third electric motor 410 drives the second drive gear 409, which in turn drives the driven gear 406 to rotate, causing the sleeve plate 407 to rotate and screw the screw 603 onto the auger rod 602. Then, the third electric cylinder 405 extends, moving the sleeve plate 407 and screw 603 to the outside of the auger rod 602. Finally, the second electric cylinder 404 retracts, causing the T-plate 403 to move downwards, which in turn moves the sleeve plate 407 and screw 603 downwards, thus moving them away from the injection molding machine section 6.

Claims

1. A maintenance device for an injection molding machine, characterized by: It includes a base mechanism (1), a heating mechanism (2), a cleaning mechanism (3), a screwing mechanism (4), and a spiral rod cleaning mechanism (5); the heating mechanism (2) is mounted on the base mechanism (1), the screwing mechanism (4) is rotatably mounted on the base mechanism (1), the cleaning mechanism (3) is fixedly mounted on the screwing mechanism (4), and the spiral rod cleaning mechanism (5) is fixedly mounted on the screwing mechanism (4); The heating mechanism (2) includes a heating semicircular ring (201), a limiting shaft (202), a drive electric cylinder (203), a plastic collection groove (204), a trapezoidal slider (205), a limiting cylinder (206), a spring (207), a push pin (208), and a limiting seat (209); both heating semicircular rings (201) are slidably mounted on the sliding plate (105) of the base mechanism (1); a limiting shaft (202) is provided on one of the heating semicircular rings (201), and the other heating semicircular ring (201) is... The drive cylinder (203) is slidably mounted on the limiting shaft (202); both ends of the drive cylinder (203) are fixedly connected to the two heating semi-circular rings (201); the limiting seat (209) is slidably mounted on the cylinder of the heating semi-circular ring (201), the limiting seat (209) is provided with a cylinder, the plastic collection groove (204) is slidably mounted on the cylinder on the limiting seat (209); the plastic collection groove (204) is provided with a limiting cylinder (206), and the trapezoidal slider (205) is fixedly mounted on the limiting cylinder (206); The cleaning mechanism (3) includes a square plate 1 (301), a square plate 2 (302), a square plate 3 (303), a drive gear 1 (304), a drive motor 2 (305), a limiting sleeve (306), a cleaning rod (307), a fixed shaft (308), a clamping plate (309), and a sliding sleeve (310); the square plate 1 (301) and the square plate 3 (303) are fixedly connected by a connecting rod; the square plate 2 (302) is slidably installed on the connecting rod between the square plate 1 (301) and the square plate 3 (303); a spring is installed between the square plate 2 (302) and the square plate 1 (301); a motor is provided on the square plate 2 (302), and the motor shaft is fixedly connected to the drive gear 1 (304); the square plate 2 (302) is slidably installed in the groove of the connecting plate (411) of the screwing mechanism (4); the drive gear 1 (304) and the connecting rod are fixedly connected by a connecting rod. The racks on the connecting plate (411) mesh with each other; the limiting sleeve (306) is rotatably mounted on the square plate three (303); the driving motor two (305) is fixedly mounted on the side of the limiting sleeve (306), and its motor shaft is fixedly connected to the gear, and the gear meshes with the gear fixed on the square plate three (303); the fixed shaft (308) is fixedly connected to the cleaning rod (307); the fixed shaft (308) is rotatably mounted on the limiting sleeve (306); a motor is provided on the limiting sleeve (306), and the motor drives the fixed shaft (308) to rotate through the belt; the clamping plate (309) is rotatably mounted in the groove of the fixed shaft (308); the sliding sleeve (310) is slidably mounted on the fixed shaft (308); an electric cylinder is provided on the fixed shaft (308), one end of the electric cylinder is fixedly mounted on the fixed shaft (308), and the end of its piston rod is fixedly connected to the sliding sleeve (310); The screwing mechanism (4) includes a fixed plate (401), a support column (402), a T-shaped plate (403), a second drive cylinder (404), a third drive cylinder (405), a driven gear (406), a sleeve plate (407), a second spring (408), a second drive gear (409), a third drive motor (410), and a connecting plate (411). The lower end of the fixed plate (401) is fixedly mounted on the motor shaft of the first drive motor (102). The support column (402) is fixedly mounted on the fixed plate (401). The T-shaped plate (403) is slidably mounted on the support column (402). The bottom of the cylinder body of the second drive cylinder (404) is fixedly mounted on the T-shaped plate (403), and the end of the piston rod of the second drive cylinder (404) is fixedly mounted on the fixed plate (401). Fixed connection; the bottom of the cylinder body of the drive electric cylinder three (405) is fixedly installed on the T-shaped plate (403), and a U-shaped frame is installed at the end of its piston rod. The U-shaped frame is fixedly connected to the sleeve plate (407) by a rope; the sleeve plate (407) is slidably installed in the round hole of the T-shaped plate (403), and the driven gear (406) is slidably installed on the sleeve plate (407); one end of the spring two (408) is in contact with the sleeve plate (407), and the other end is in contact with the driven gear (406); the drive motor three (410) is fixedly installed on the T-shaped plate (403), and the motor shaft of the drive motor three (410) is fixedly connected to the drive gear two (409). The drive gear two (409) and the driven gear (406) mesh with each other; the connecting plate (411) is fixedly installed on the support column (402).

2. A maintenance device for an injection molding machine according to claim 1, characterized in that One end of spring 1 (207) is in contact with the limiting seat (209), and the other end of spring 1 (207) is in contact with the plastic collection groove (204); a pin (208) is provided on the plastic collection groove (204).

3. A maintenance device for an injection molding machine according to claim 1, characterized in that The base mechanism (1) includes a base plate (101), a drive motor (102), an electric cylinder (103), a telescopic sleeve (104), and a sliding plate (105). The base plate (101) is provided with casters. The drive motor (102) is provided on the base plate (101). The lower end of the telescopic sleeve (104) is fixedly installed on the base plate (101), and the upper end of the telescopic sleeve (104) is fixedly connected to the sliding plate (105). The bottom of the cylinder body of the electric cylinder (103) is fixedly installed on the base plate (101), and the end of its piston rod is fixedly connected to the sliding plate (105).

4. A maintenance device for an injection molding machine according to claim 1, characterized in that The aforementioned screw cleaning mechanism (5) includes a mounting base (501), a cleaning plate (502), a tightening nut (503), and a scale (504). The mounting base (501) is fixedly mounted on a support column (402). There are two cleaning plates (502), which are slidably mounted on the mounting base (501). A scale (504) is provided on one of them, and the tightening nut (503) is rotatably mounted on one of the cleaning plates (502). The distance between the two cleaning plates (502) is adjusted by the worker to adapt to the thread pitch of the screw (602) of the injection molding machine, and then the tightening nut (503) is rotated to fix the two cleaning plates (502) relative to each other.

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