Plastic injection molding equipment and processing method thereof

Abstract

The invention provides plastic injection molding equipment and a processing method thereof, and relates to the technical field of plastic molding. The plastic injection molding equipment comprises an injection molding machine, an injection table is installed in the injection molding machine, a double-head injection pipe is installed at the end, away from the injection molding machine, of the injection table, two pipelines are arranged in the double-head injection pipe, two output heads of the double-head injection pipe are each provided with an injection head in a sealed rotating mode, and rotating gears are fixedly arranged on the side walls of the injection heads; a protective cover is arranged on the injection table, a double-shaft motor is arranged in the protective cover, and a flow dividing mechanism used for driving the rotating gear is arranged at the end, facing the double-end injection pipe, of the double-shaft motor. By arranging the double-head injection pipe capable of spraying the melt from the two injection heads, the winding mechanism arranged at the output end of the double-head injection pipe and the color visual sensor and the resistance strain gauge which are matched with each other, a worker can easily master the quality of the melt produced by the injection molding machine, so that the manual test time is shortened, and the injection molding efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of plastic molding, and in particular relates to plastic injection molding equipment. Background Art

[0002] Plastic injection molding equipment, also known as injection molding machines, is the core equipment in the plastics processing industry. Its working process is roughly as follows: solid plastic pellets are first fed into a heated barrel; then the plastic is melted and evenly mixed through the combined action of the heating belt outside the barrel and the shear heat generated by the rotation of the screw; then, the molten plastic is transferred and molded by the screw and injected into the closed mold cavity through the nozzle at high pressure and speed; finally, the plastic cools and solidifies in the mold at a lower temperature, eventually forming a shape consistent with the mold cavity.

[0003] Before the injection molding machine starts working for the first time each day, in addition to preheating, no-load operation, and checking the lubrication conditions of various positions, it also needs to perform a test shot. That is, without installing the mold, the molten plastic is transferred to the shooting table and the shooting head equipped with a nozzle to form the mold. The staff then determines the operating status of the injection molding machine by observing the state of the molten material. Especially when producing high-precision products, a test shot is an essential step before formal production every day.

[0004] The current test shot process is usually controlled by staff who spray out the melt from the nozzle. They will place a tray under the nozzle in advance. After the test melt is sprayed out, the staff will use a scraper to scrape off the remaining melt on the nozzle. The staff then judges the operating status of the injection molding machine by observing the state of the melt. This set of steps needs to be performed manually by the staff throughout the process, so the work efficiency is low, and the melt used for the test is also difficult to store as a comparison. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the disadvantages of the above-mentioned prior art and provide a plastic injection molding device.

[0006] The technical solutions adopted to solve the above technical problems are: A plastic injection molding device, comprising an injection molding machine, wherein a shooting platform is installed in the injection molding machine, a double-ended shooting tube is installed at one end of the shooting platform away from the injection molding machine, two pipelines are provided inside the double-ended shooting tube, two output heads of the double-ended shooting tube are respectively sealed and rotated with shooting heads, a rotating gear is fixedly provided on the side wall of the shooting head, a protective cover is installed on the shooting platform, a dual-axis motor is installed inside the protective cover, and a diverter mechanism for driving the rotating gear is installed on the dual-axis motor facing one end of the double-ended shooting tube, wherein the diverter mechanism controls the flow direction of the molten material; A platform is also installed on the inner wall of the protective cover, and a collecting box is slidably connected to the platform. The collecting box passes through the side wall of the protective cover, and a color vision sensor is installed on the side wall of the protective cover. The collecting box is open on the side facing the color vision sensor. An electric push rod is provided on the top of the platform, and a resistance strain gauge is provided on the end of the top of the platform away from the electric push rod. A winding mechanism for rolling up the molten material is installed at the output end of the electric push rod.

[0007] Through the above technical solution, the present invention is provided with a double-headed shot tube that can spray molten material from two nozzles, and a winding mechanism is arranged at the output end of the double-headed shot tube, as well as a matching color visual sensor and resistance strain gauge, so that the staff can easily grasp the quality of the molten material produced by the injection molding machine, thereby reducing the time of manual testing and improving injection molding efficiency.

[0008] Furthermore, the double-headed shooting tube is tilted at one end close to the shooting head, and a connecting path is provided inside the shooting head. The connecting path is also tilted and is connected to the pipeline.

[0009] Through the above technical solution, when the shooting head is driven by the rotating gear to rotate, the connecting path will be staggered with the pipeline, so that the shooting head and the double-headed shooting tube are no longer connected. At this time, the molten material extruded from the double-headed shooting tube will not be ejected from the shooting head.

[0010] Furthermore, the diversion mechanism includes two intermediate rods, two driving gears and two bevel gears, one of the intermediate rods is fixedly connected to an output end of the dual-axis motor, and the other intermediate rod is rotatably connected to the side wall of the protective cover. The driving gear and the bevel gear are both fixedly connected to the side wall of the intermediate rod, the two driving gears are respectively engaged with the two rotating gears, and the two bevel gears are engaged with each other.

[0011] Through the above technical solution, with the help of the above-mentioned diversion mechanism, the rotation of the dual-axis motor will simultaneously drive the two rotating gears to drive the two shooting heads to rotate respectively. Due to the meshing action of the two bevel gears, the two driving gears will rotate in different directions, thereby causing the two shooting heads to rotate in different directions. The position of the connecting path and the pipeline on the side wall of the shooting head will also change, thereby causing one shooting head to be connected to the pipeline in the double-headed shooting tube, while the other shooting head is staggered with the pipeline in the double-headed shooting tube.

[0012] Furthermore, a shift rod is fixedly provided at one end of the dual-axis motor away from the middle rod, the top wall inside the protective cover is rotatably connected to the top rod, a rotating part is fixedly provided at the other end of the top rod, a top torsion spring is wound around the outside of the top rod, a first blade, a second blade and a third blade are provided on the rotating part, a first hook rod is fixedly provided on the side wall of the first blade, the side wall of the shift rod is pressed against the side wall of the first hook rod, a protrusion is fixedly provided at the bottom of the second blade, and an arc plate is provided on the top of the third blade.

[0013] Through the above technical solution, when the dual-axis motor drives the middle rod to rotate, it will also drive the shift rod to rotate. Since the shift rod is against the first hook rod, the rotating part will rotate in the opposite direction of the force of the top torsion spring, and the second blade and the third blade will also rotate synchronously, thereby playing different roles.

[0014] Furthermore, two telescopic rods are fixedly provided on the top of the platform, a lifting plate is commonly provided on the top of the two telescopic rods, an insertion rod is fixedly provided on the bottom of the lifting plate, a telescopic spring is wound around the insertion rod, and the height of the top of the lifting plate is greater than the height of the bottom of the protrusion.

[0015] Through the above technical solution, due to the rotation of the second blade, the protrusion will move to the position of the lifting plate, thereby squeezing the lifting plate down. When the telescopic rod is compressed, the telescopic spring wrapped around the outside of the insertion rod will also be compressed.

[0016] The cam is fixedly provided with a rocker arm away from the side wall of one end of the intermediate rod, and a driving rod is fixedly provided on the top of the other end of the rocker arm, and the top wall of the protective cover is rotatably connected to the center rod, and a side torsion spring is wound around the outside of the center rod, and a rocker arm is fixedly provided with the other end of the center rod, and the rocker cross section is arc-shaped, and a second hook rod is fixedly provided on the side wall of one end of the rocker, and the center rod abuts against the side wall of the second hook rod, and a stopper is fixedly provided on the other end of the rocker, and a movement hole is opened in the stopper, and a round rod is installed in the movement hole, and a side swing plate is provided on the other end of the round rod, and the side swing plate has an inverted "L" shape in longitudinal section, and a through rod is fixedly provided on the side wall of the other end of the side swing plate, and the through rod passes through the side wall of the protective cover, and a card rod is fixedly provided on the side wall of the collecting box, and a slot is opened on the side wall of the collecting box, and the card rod is inserted into the slot.

[0017] Through the above technical solution, when the output end of the dual-axis motor rotates, the swing rod arranged on the side wall of the output end of the dual-axis motor will also drive the driving rod to rotate, thereby causing the seesaw to rotate around the center rod. While compressing the side torsion spring, the block arranged at the other end of the seesaw drives the round rod to swing, and finally the card rod is inserted into the card slot, thereby fixing the collection box.

[0018] Furthermore, the end of the collecting box facing the electric push rod is open, the top of the end of the collecting box facing the rotating part is provided with an arc groove, and the end of the arc groove facing the arc plate is open.

[0019] Through the above technical solution, the arc-shaped groove on the top of the collection box allows the arc-shaped plate on the top of the third blade to be inserted into it, thereby fixing the collection box in its current position, which not only ensures the stable operation of the winding mechanism, but also prevents the collection box from being accidentally pulled out.

[0020] Furthermore, the winding mechanism includes a fixed sleeve, a moving rod, a connecting rod, an annular rod and a handle rod. The fixed sleeve is a hollow ring. The moving rod and the connecting rod are both located inside the fixed sleeve. One end of the moving rod is rotatably connected to the output end of the electric push rod, and the other end of the moving rod is magnetically connected to the connecting rod. A spiral groove is provided on the side wall of the moving rod. The insertion rod passes through the side wall of the fixed sleeve and is located directly above the spiral groove. The connecting rod is fixedly connected to the annular rod at one end away from the moving rod, the bottom of the annular rod is against the shooting head, the handle rod is fixedly connected to the end of the annular rod away from the connecting rod, and the handle rod passes through the side wall of the collection box.

[0021] Through the above technical solution, since the insertion rod has been inserted into the spiral groove, when the electric push rod pushes the moving rod forward, the moving rod will also rotate, thereby driving the annular rod to move forward and rotate at the same time, thereby wrapping the molten material ejected from the nozzle around the annular rod. This not only makes it easier for the color visual sensor to identify the color of the molten material, but also can detect the fluidity of the molten material. Suitable molten material should be able to wrap around the side wall of the annular rod without dripping.

[0022] Furthermore, the outer diameter of the movement rod is larger than the outer diameter of the connecting rod, a fixing ring is provided at one end of the fixing sleeve away from the electric push rod, a side spring is provided between the fixing ring and the movement rod, and the connecting rod is located inside the side spring.

[0023] Through the above technical solution, the setting of the side spring and the fixed ring will exert a tendency on the moving rod and the connecting rod to move toward the electric push rod. After the insertion rod leaves the spiral groove, even if the electric push rod withdraws the thrust, the side spring can push the moving rod and the connecting rod back to their original position, thereby facilitating the next detection work.

[0024] A processing method for plastic injection molding equipment comprises the following specific steps: S1. Start the dual-axis motor. The rotation of the dual-axis motor drives the intermediate rod to rotate, and the drive gear and bevel gear provided on the side wall of the intermediate rod rotate synchronously. Since the two bevel gears are engaged, the drive gear is also engaged with the rotating gear. Therefore, the two shooting heads on the double-headed shooting tube will rotate driven by the rotating gear, so that the connecting path of the shooting head in the horizontal state is staggered with the pipeline of the double-headed shooting tube, while the connecting path of the shooting head in the vertical state is connected with the pipeline of the double-headed shooting tube; S2, then start the shooting platform. Since the horizontal shooting head connection path is blocked, the molten material to be tested will only be ejected from the vertical shooting head; S3. When the dual-axis motor drives the middle rod to rotate, the swing rod arranged on the side wall of the output end of the dual-axis motor will also rotate synchronously. When the driving rod fixed on the top of the swing rod rotates, it will also drive the second hook rod to rotate. Since the second hook rod is arranged at one end of the rocker, the rotation of the second hook rod will also drive the rocker to rotate around the center rod, so that the side torsion spring is compressed, and the stopper arranged at the other end of the rocker will drive the round rod to rotate, and the side swing plate arranged at the bottom of the round rod will drive the through rod to rotate, so that the clamping rod at the other end of the through rod is inserted into the clamping groove on the side wall of the collection box, thereby limiting and fixing the collection box; S4. Since the two output ends of the dual-axis motor rotate simultaneously, the dual-axis motor drives the middle rod to rotate while also driving the shift rod to rotate. The first hook rod abutting against the side wall of the shift rod is driven to move, thereby causing the rotating member to rotate around the top rod, compressing the top torsion spring. The rotation of the rotating member also causes the second and third blades to rotate synchronously. The rotation of the second blade causes the protrusion to press the lifting plate, compressing the telescopic rod. The squeezed lifting plate also compresses the telescopic spring, and then the insertion rod is inserted into the spiral groove. S5. The rotation of the third blade also drives the arc plate to rotate, thereby inserting the arc plate into the arc groove, thereby further fixing the collection box; S6. Then the electric push rod is started, which pushes the moving rod to move radially. Since the inserted rod is in contact with the spiral groove, the moving rod will move forward and rotate at the same time. The connecting rod and the ring rod fixed at the other end of the moving rod will follow the movement, thereby winding the molten material ejected from the shooting head onto the ring rod and moving it in the direction away from the electric push rod. S7. The molten material wound on the ring rod will be inspected by the color vision sensor for the first round to check whether the color of the molten material meets the requirements. Then, when the ring rod moves away from the electric push rod, if the fluidity of the molten material does not meet the requirements, the molten material will drip onto the resistance strain gauge set on the top of the platform. If one of the detection results of the color vision sensor and the resistance strain gauge is unqualified, an unqualified signal will be output, thereby helping the staff to understand the operation status of the molten material and the injection molding machine; S8. If the melt is unqualified, the staff needs to adjust the injection molding machine parameters and then perform the above steps for testing; if the melt is qualified, the staff controls the dual-axis motor to rotate in the opposite direction, so that the horizontal shooting head is connected to the pipeline. At this time, the vertical shooting head will be staggered with the pipeline, and then normal injection molding will be carried out. It should be noted that the first two injection molded parts produced must be discarded to avoid using the remaining test melt in the pipeline.

[0025] The beneficial effects of the present invention are as follows: (1) The present invention provides a double-headed ejector tube that can eject molten material from two ejector heads, and a reeling mechanism provided at the output end of the double-headed ejector tube, as well as a matching color vision sensor and resistance strain gauge. Before the formal injection molding process is carried out, the color and fluidity of the molten material can be tested, so that the staff can easily grasp the quality of the molten material produced by the injection molding machine, thereby reducing the time for manual testing and improving the injection molding efficiency. (2) The present invention sets the moving rod and the connecting rod in the winding device to be connected by magnetic force, so that the staff can collect samples of the melt each time by pulling out and replacing the collection box, thereby facilitating the staff to retain samples for comparison, which is very conducive to long-term statistics and related training. From a long-term perspective, it is of great significance for studying the operation of the injection molding machine; (3) The present invention uses an annular rod to coil the molten material, which not only facilitates the color vision sensor to identify and judge the color of the molten material, but also provides sufficient space for the molten material during the coiling process. The molten material in the space has no support, so if the molten material does not meet the flowability requirements, it will drip from the annular rod and fall onto the resistance strain gauge for identification. Regardless of whether the test is qualified or not, the staff can recycle the collection box, the annular rod and the molten material on the annular rod for sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the back structure of the injection molding machine in the present invention; Figure 3 This is a schematic diagram of the structural connection inside the protective cover of the present invention; Figure 4 It is a schematic diagram of the structural connection between the dual-axis motor and the rotating member in the present invention; Figure 5 It is a structural diagram of the diversion mechanism in the present invention; Figure 6 It is a schematic diagram of the structural connection between the double-ended ejection tube and the ejection head in the present invention; Figure 7 This is a schematic diagram of the structural connection between the rotating member, the lifting plate and the telescopic rod in the present invention; Figure 8 This is a schematic diagram of the structural connection inside the collection box of the present invention; Figure 9 It is a schematic diagram of the structural connection of the winding mechanism in the present invention.

[0027] Figure numerals: 1, injection molding machine; 2, shooting platform; 3, double-headed shooting tube; 4, pipeline; 5, shooting head; 6, rotating gear; 7, protective cover; 8, dual-axis motor; 9, platform; 10, collecting box; 11, color vision sensor; 12, electric push rod; 13, resistance strain gauge; 14, connecting path; 15, intermediate rod; 16, driving gear; 17, bevel gear; 18, shift rod; 19, top rod; 20, rotating part; 21, top torsion spring; 22, first blade; 23, second blade; 24, third blade; 25, first hook rod; 26, convex Block; 27, curved plate; 28, telescopic rod; 29, lifting plate; 30, plug rod; 31, telescopic spring; 32, swing rod; 33, driving rod; 34, center rod; 35, side torsion spring; 36, rocker; 37, second hook rod; 38, stopper; 39, movement hole; 40, round rod; 41, side swing plate; 42, through rod; 43, clamping rod; 44, clamping groove; 45, curved groove; 46, fixing sleeve; 47, movement rod; 48, connecting rod; 49, ring rod; 50, handle; 51, spiral groove; 52, fixing ring; 53, side spring. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] like Figure 1 、 Figure 2 as well as Figure 6 As shown, a plastic injection molding device in this embodiment includes an injection molding machine 1, a shooting platform 2 is installed in the injection molding machine 1, a double-headed shooting tube 3 is installed at one end of the shooting platform 2 away from the injection molding machine 1, two pipelines 4 are arranged inside the double-headed shooting tube 3, and the two output heads of the double-headed shooting tube 3 are sealed and rotated with shooting heads 5, and the other is Figure 5 It can be seen that one of the two shooting heads 5 is in a horizontal state and the other is in a vertical state. The double-headed shooting tube 3 is tilted at one end close to the shooting head 5. A connecting path 14 is provided inside the shooting head 5. The connecting path 14 is also tilted. The connecting path 14 is connected to the pipeline 4. When the shooting head 5 is driven to rotate by the rotating gear 6, the connecting path 14 will be staggered with the pipeline 4, so that the shooting head 5 is no longer connected to the double-headed shooting tube 3. At this time, the molten material extruded from the double-headed shooting tube 3 will not be ejected from the shooting head 5.

[0030] Also refer to Figure 1 and Figure 5As shown, a rotating gear 6 is fixedly provided on the side wall of the shooting head 5, a protective cover 7 is installed on the shooting platform 2, a dual-axis motor 8 is installed inside the protective cover 7, and a diversion mechanism for driving the rotating gear 6 is installed on one end of the dual-axis motor 8 facing the double-headed shooting tube 3. The diversion mechanism controls the flow direction of the molten material. The diversion mechanism includes two intermediate rods 15, two driving gears 16 and two bevel gears 17, one of the intermediate rods 15 is fixedly connected to an output end of the dual-axis motor 8, and the other intermediate rod 15 is rotatably connected to the side wall of the protective cover 7. The driving gear 16 and the bevel gear 17 are both fixedly connected to the side wall of the intermediate rod 15. The two driving gears 16 are respectively engaged with the two rotating gears 6, and the two bevel gears 17 are engaged with each other. With the help of the above-mentioned diversion mechanism, the rotation of the dual-axis motor 8 will simultaneously drive the two rotating gears 6 to drive the two shooting heads 5 to rotate respectively. Due to the meshing action of the two bevel gears 17, the two driving gears 16 will rotate in different directions, thereby causing the two shooting heads 5 to rotate in different directions. The position of the connecting path 14 on the side wall of the shooting head 5 and the pipeline 4 will also change, thereby causing one shooting head 5 to be connected to the pipeline 4 in the double-headed shooting tube 3, while the other shooting head 5 is staggered with the pipeline 4 in the double-headed shooting tube 3.

[0031] Combine Figure 4 and Figure 7 As shown in the content, the dual-axis motor 8 is fixed with a lever 18 at one end away from the intermediate rod 15, the top wall of the protective cover 7 is rotatably connected to the top rod 19, and the other end of the top rod 19 is fixed with a rotating member 20. The top rod 19 is wrapped with a top torsion spring 21. The force applied by the top torsion spring 21 to the top rod 19 and the rotating member 20 will make the rotating member 20 tend to maintain its initial position. The rotating member 20 is provided with a first blade 22, a second blade 23 and a third blade 24. The side of the first blade 22 A first hook rod 25 is fixedly provided on the wall, and the side wall of the shift rod 18 is pressed against the side wall of the first hook rod 25. A protrusion 26 is fixedly provided on the bottom of the second blade 23, and an arc-shaped plate 27 is provided on the top of the third blade 24. When the dual-axis motor 8 drives the intermediate rod 15 to rotate, it will also drive the shift rod 18 to rotate. Since the shift rod 18 is pressed against the first hook rod 25, the rotating part 20 will rotate against the direction of the force of the top torsion spring 21, and the second blade 23 and the third blade 24 will also rotate synchronously, thereby playing different roles.

[0032] Reference Figure 7As shown, two telescopic rods 28 are fixedly provided on the top of the platform 9, and a lifting plate 29 is jointly provided on the top of the two telescopic rods 28. A plug rod 30 is fixedly provided at the bottom of the lifting plate 29, and a telescopic spring 31 is wound around the plug rod 30. The height of the top of the lifting plate 29 is greater than the height of the bottom of the protrusion 26. Due to the rotation of the second blade 23, the protrusion 26 will move to the position of the lifting plate 29, thereby squeezing the lifting plate 29 to move down. When the telescopic rod 28 is compressed, the telescopic spring 31 wound around the outside of the plug rod 30 will also be compressed. The setting of the telescopic spring 31 will make the lifting plate 29 and the telescopic rod 28 in an extended state until they are squeezed by the protrusion 26.

[0033] Combine Figure 2 、 Figure 4 and Figure 7 As shown in the content, the inner wall of the protective cover 7 is also provided with a platform 9, on which a collection box 10 is slidably connected. The collection box 10 passes through the side wall of the protective cover 7 and is Figure 4 as well as Figure 7 It can be seen that a handle for easy extraction is provided on the top of the collection box 10, a swing rod 32 is fixedly provided on the side wall of one end of the dual-axis motor 8 away from the middle rod 15, a driving rod 33 is fixedly provided on the top of the other end of the swing rod 32, the inner top wall of the protective cover 7 is rotatably connected to the center rod 34, a side torsion spring 35 is wound around the outside of the center rod 34, and a rocker 36 is fixedly provided on the other end of the center rod 34. The cross section of the rocker 36 is arc-shaped, a second hook rod 37 is fixedly provided on the side wall of one end of the rocker 36, the center rod 34 and the side wall of the second hook rod 37 are against each other, a stopper 38 is fixedly provided on the other end of the rocker 36, a movement hole 39 is opened in the stopper 38, a round rod 40 is installed in the movement hole 39, and a side swing plate 41 is provided on the other end of the round rod 40. The longitudinal section of the side swing plate 41 is an inverted "L" shape, and a through rod 42 is fixedly provided on the side wall of the other end of the side swing plate 41. The through rod 42 passes through the side wall of the protective cover 7, and a clamping rod 43 is fixedly provided on the side wall of one end of the protective cover 7. A clamping slot 44 is provided on the side wall of the collection box 10, and the clamping rod 43 is inserted into the clamping slot 44. When the output end of the dual-axis motor 8 rotates, the swing rod 32 set on the side wall of the output end of the dual-axis motor 8 will also drive the drive rod 33 to rotate, thereby causing the rocker 36 to rotate around the center rod 34. While compressing the side torsion spring 35, the block 38 set at the other end of the rocker 36 drives the round rod 40 to swing, and finally the clamping rod 43 is inserted into the clamping slot 44, thereby fixing the collection box 10.

[0034] The end of the collecting box 10 facing the electric push rod 12 is open, and an arc groove 45 is provided on the top of the end of the collecting box 10 facing the rotating part 20. The arc groove 45 is open on the end facing the arc plate 27. The arc groove 45 on the top of the collecting box 10 allows the arc plate 27 on the top of the third blade 24 to be inserted into it, thereby fixing the collecting box 10 in the current position, which not only ensures the stable operation of the winding mechanism, but also prevents the collecting box 10 from being accidentally pulled out.

[0035] Combine Figure 7 and Figure 8 As shown in the content, a color vision sensor 11 is installed on the side wall of the protective cover 7, the side of the collecting box 10 facing the color vision sensor 11 is open, an electric push rod 12 is provided on the top of the platform 9, and a resistance strain gauge 13 is provided on the end of the top of the platform 9 away from the electric push rod 12. The color vision sensor 11 can identify and judge the color of the molten material. At the same time, if the molten material does not meet the fluidity requirements, it will drip and fall onto the resistance strain gauge 13 and be identified as an unqualified product.

[0036] comprehensive Figure 8 and Figure 9 As shown in the content, a winding mechanism for rolling up the molten material is installed at the output end of the electric push rod 12. The winding mechanism includes a fixed sleeve 46, a moving rod 47, a connecting rod 48, an annular rod 49 and a handle 50. The fixed sleeve 46 is a hollow ring. The moving rod 47 and the connecting rod 48 are both located inside the fixed sleeve 46. One end of the moving rod 47 is rotatably connected to the output end of the electric push rod 12, and the other end of the moving rod 47 is magnetically connected to the connecting rod 48. The outer diameter of the moving rod 47 is larger than the outer diameter of the connecting rod 48, and the fixed sleeve 46 is away from the electric push rod. A fixing ring 52 is provided at one end of 12, and a side spring 53 is provided between the fixing ring 52 and the moving rod 47, and the connecting rod 48 is located inside the side spring 53. The setting of the side spring 53 and the fixing ring 52 will exert a tendency for the moving rod 47 and the connecting rod 48 to move toward the direction of the electric push rod 12. After the insertion rod 30 leaves the spiral groove 51, even if the electric push rod 12 withdraws the thrust, the side spring 53 can push the moving rod 47 and the connecting rod 48 back to their original position, thereby facilitating the next detection work.

[0037] The use of the annular rod 49 to roll up the molten material not only facilitates the color vision sensor 11 to identify and judge the color of the molten material, but also provides sufficient space for the molten material during the rolling process. The molten material in the space has no support, so if the molten material does not meet the fluidity requirements, it will drip from the annular rod 49.

[0038] Additional combination Figure 3The content in the figure shows that a spiral groove 51 is provided on the side wall of the moving rod 47, the insertion rod 30 passes through the side wall of the fixing sleeve 46 and is located directly above the spiral groove 51, the connecting rod 48 is fixedly connected to the annular rod 49 at one end away from the moving rod 47, the bottom of the annular rod 49 is against the shooting head 5, the handle rod 50 is fixedly connected to the end of the annular rod 49 away from the connecting rod 48, and the handle rod 50 passes through the side wall of the collecting box 10. Since the insertion rod 30 has been inserted into the spiral groove 51, when the electric push rod 12 pushes the moving rod 47 forward, the moving rod 47 will also rotate, thereby driving the annular rod 49 to rotate while moving forward, thereby wrapping the molten material sprayed from the shooting head 5 around the annular rod 49, which not only makes it easier for the color visual sensor 11 to identify the color of the molten material, but also can detect the fluidity of the molten material. Suitable molten material should be able to be wrapped around the side wall of the annular rod 49 without dripping.

[0039] The processing method of plastic injection molding equipment includes the following specific steps: S1. Start the dual-axis motor 8. The rotation of the dual-axis motor 8 drives the intermediate rod 15 to rotate, and the driving gear 16 and the bevel gear 17 provided on the side wall of the intermediate rod 15 rotate synchronously. Since the two bevel gears 17 are engaged, the driving gear 16 is also engaged with the rotating gear 6. Therefore, the two shooting heads 5 on the double-headed shooting tube 3 are driven by the rotating gear 6 to rotate, so that the connecting path 14 of the shooting head 5 in the horizontal state is staggered with the pipeline 4 of the double-headed shooting tube 3, while the connecting path 14 of the shooting head 5 in the vertical state is connected with the pipeline 4 of the double-headed shooting tube 3; S2, then start the shooting platform 2. Since the communication path 14 of the horizontal shooting head 5 is blocked, the molten material to be tested will only be ejected from the vertical shooting head 5; S3. When the dual-axis motor 8 drives the middle rod 15 to rotate, the swing rod 32 arranged on the side wall of the output end of the dual-axis motor 8 will also rotate synchronously. When the driving rod 33 fixed on the top of the swing rod 32 rotates, it will also drive the second hook rod 37 to rotate. Since the second hook rod 37 is arranged at one end of the rocker plate 36, the rotation of the second hook rod 37 will also drive the rocker plate 36 to rotate around the center rod 34, so that the side torsion spring 35 is compressed, and the stopper 38 arranged at the other end of the rocker plate 36 will drive the round rod 40 to rotate. The side swing plate 41 arranged at the bottom of the round rod 40 will drive the through rod 42 to rotate, so that the clamping rod 43 at the other end of the through rod 42 is inserted into the clamping groove 44 on the side wall of the collection box 10, thereby limiting and fixing the collection box 10. S4. Since the two output ends of the dual-axis motor 8 rotate simultaneously, the dual-axis motor 8 drives the middle rod 15 to rotate while also driving the shift rod 18 to rotate. The first hook rod 25 abutting against the side wall of the shift rod 18 is driven to move, thereby causing the rotating member 20 to rotate around the top rod 19, so that the top torsion spring 21 is compressed. The rotation of the rotating member 20 also causes the second blade 23 and the third blade 24 to rotate synchronously. The rotation of the second blade 23 causes the protrusion 26 to squeeze the lifting plate 29, compressing the telescopic rod 28. The squeezed lifting plate 29 also compresses the telescopic spring 31, and then the insertion rod 30 is inserted into the spiral groove 51. S5. The rotation of the third blade 24 also drives the arc plate 27 to rotate, and then the arc plate 27 is inserted into the arc groove 45, thereby further fixing the collection box 10; S6. Then the electric push rod 12 is started, which pushes the motion rod 47 to move radially. Since the insertion rod 30 is in contact with the spiral groove 51, the motion rod 47 will move forward and rotate at the same time. The connecting rod 48 and the annular rod 49 fixed at the other end of the motion rod 47 will move along with it, thereby winding the molten material ejected from the nozzle 5 onto the annular rod 49 and moving it in a direction away from the electric push rod 12. S7. The molten material wound on the annular rod 49 will be subjected to a first round of inspection by the color vision sensor 11 to check whether the color of the molten material meets the requirements. Then, when the annular rod 49 moves away from the electric push rod 12, if the fluidity of the molten material does not meet the requirements, the molten material will drip onto the resistance strain gauge 13 provided on the top of the platform 9. If one of the detection results of the color vision sensor 11 and the resistance strain gauge 13 is unqualified, an unqualified signal will be output, thereby helping the staff to understand the operation status of the molten material and the injection molding machine 1; S8. If the melt is unqualified, the staff needs to adjust the parameters of the injection molding machine 1, and then perform the above steps for testing; if the melt is qualified, the staff controls the dual-axis motor 8 to rotate in the opposite direction, so that the horizontal shooting head 5 is connected to the pipeline 4. At this time, the vertical shooting head 5 will be staggered with the pipeline 4, and then normal injection molding will be carried out. It should be noted that the first two injection molded parts produced should be discarded to avoid using the remaining test melt in the pipeline 4.

[0040] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A plastic injection molding device, comprising an injection molding machine (1), wherein a shooting platform (2) is installed in the injection molding machine (1), characterized in that: A double-headed shot tube (3) is installed at one end of the shooting platform (2) away from the injection molding machine (1), two pipelines (4) are arranged inside the double-headed shot tube (3), two output heads of the double-headed shot tube (3) are respectively sealed and rotated with a shot head (5), and a rotating gear (6) is fixedly arranged on the side wall of the shot head (5), a protective cover (7) is installed on the shooting platform (2), a double-axis motor (8) is installed inside the protective cover (7), and a diversion mechanism for driving the rotating gear (6) is installed on the double-axis motor (8) facing one end of the double-headed shot tube (3), and the diversion mechanism controls the flow direction of the molten material; The inner wall of the protective cover (7) is further provided with a platform (9), a collecting box (10) is slidably connected to the platform (9), the collecting box (10) passes through the side wall of the protective cover (7), a color vision sensor (11) is provided on the side wall of the protective cover (7), the collecting box (10) is open on the side facing the color vision sensor (11), an electric push rod (12) is provided on the top of the platform (9), a resistance strain gauge (13) is provided on the end of the top of the platform (9) away from the electric push rod (12), and a winding mechanism for rolling up the molten material is provided at the output end of the electric push rod (12).

2. The plastic injection molding equipment according to claim 1, characterized in that The double-headed ejection tube (3) is tilted at one end close to the ejection head (5), and a connecting passage (14) is provided inside the ejection head (5). The connecting passage (14) is also tilted, and the connecting passage (14) is connected to the pipeline (4).

3. The plastic injection molding equipment according to claim 1, characterized in that The diversion mechanism comprises two intermediate rods (15), two driving gears (16) and two bevel gears (17), wherein one of the intermediate rods (15) is fixedly connected to an output end of the dual-axis motor (8), and the other intermediate rod (15) is rotatably connected to the side wall of the protective cover (7). The driving gear (16) and the bevel gear (17) are both fixedly connected to the side wall of the intermediate rod (15), the two driving gears (16) are respectively meshed with the two rotating gears (6), and the two bevel gears (17) are meshed with each other.

4. The plastic injection molding equipment according to claim 3, characterized in that: A shift lever (18) is fixedly provided at one end of the dual-axis motor (8) away from the intermediate rod (15); a top rod (19) is rotatably connected to the inner top wall of the protective cover (7); a rotating member (20) is fixedly provided at the other end of the top rod (19); a top torsion spring (21) is wound around the outside of the top rod (19); a first blade (22), a second blade (23) and a third blade (24) are provided on the rotating member (20); a first hook rod (25) is fixedly provided on the side wall of the first blade (22); the side wall of the shift lever (18) abuts against the side wall of the first hook rod (25); a protrusion (26) is fixedly provided on the bottom of the second blade (23); and an arc-shaped plate (27) is provided on the top of the third blade (24).

5. The plastic injection molding equipment according to claim 4, characterized in that: Two telescopic rods (28) are fixedly provided on the top of the platform (9), a lifting plate (29) is commonly provided on the top of the two telescopic rods (28), an insertion rod (30) is fixedly provided on the bottom of the lifting plate (29), a telescopic spring (31) is wound around the insertion rod (30), and the height of the top of the lifting plate (29) is greater than the height of the bottom of the protrusion (26).

6. The plastic injection molding equipment according to claim 4, characterized in that: The side wall of one end of the dual-axis motor (8) away from the intermediate rod (15) is fixedly provided with a swing rod (32), and the top of the other end of the swing rod (32) is fixedly provided with a driving rod (33). The inner top wall of the protective cover (7) is rotatably connected to a center rod (34), and a side torsion spring (35) is wound around the outside of the center rod (34). The other end of the center rod (34) is fixedly provided with a seesaw (36), and the cross section of the seesaw (36) is arc-shaped. A second hook rod (37) is fixedly provided on the side wall of one end of the seesaw (36). The center rod (34) abuts against the side wall of the second hook rod (37), and the other end of the seesaw (36) is fixed. A stopper (38) is provided, a movement hole (39) is provided in the stopper (38), a round rod (40) is installed in the movement hole (39), a side swing plate (41) is provided at the other end of the round rod (40), the longitudinal section of the side swing plate (41) is an inverted "L" shape, a through rod (42) is fixedly provided on the side wall of the other end of the side swing plate (41), the through rod (42) passes through the side wall of the protective cover (7), a clamping rod (43) is fixedly provided on the side wall of one end of the through rod (42) passing through the protective cover (7), a clamping slot (44) is provided on the side wall of the collection box (10), and the clamping rod (43) is inserted into the clamping slot (44).

7. The plastic injection molding equipment according to claim 4, characterized in that: The end of the collecting box (10) facing the electric push rod (12) is open, and the top of the end of the collecting box (10) facing the rotating member (20) is provided with an arc groove (45), and the end of the arc groove (45) facing the arc plate (27) is open.

8. The plastic injection molding equipment according to claim 5, characterized in that: The winding mechanism includes a fixed sleeve (46), a moving rod (47), a connecting rod (48), an annular rod (49) and a handle (50). The fixed sleeve (46) is a hollow ring. The moving rod (47) and the connecting rod (48) are both located inside the fixed sleeve (46). One end of the moving rod (47) is rotationally connected to the output end of the electric push rod (12). The other end of the moving rod (47) is magnetically connected to the connecting rod (48). A spiral groove (51) is provided on the side wall of the moving rod (47). The insertion rod (30) passes through the side wall of the fixed sleeve (46) and is located directly above the spiral groove (51). The end of the connecting rod (48) away from the moving rod (47) is fixedly connected to the annular rod (49). The bottom of the annular rod (49) is against the shooting head (5). The handle (50) is fixedly connected to the end of the annular rod (49) away from the connecting rod (48). The handle (50) passes through the side wall of the collection box (10).

9. The plastic injection molding equipment according to claim 8, characterized in that: The outer diameter of the movement rod (47) is greater than the outer diameter of the connecting rod (48); a fixing ring (52) is provided at one end of the fixing sleeve (46) away from the electric push rod (12); a side spring (53) is provided between the fixing ring (52) and the movement rod (47); and the connecting rod (48) is located inside the side spring (53).

10. A processing method for plastic injection molding equipment according to any one of claims 1 to 9, characterized in that: The specific steps include: S1. Start the dual-axis motor (8). The rotation of the dual-axis motor (8) drives the intermediate rod (15) to rotate. The driving gear (16) and the bevel gear (17) provided on the side wall of the intermediate rod (15) rotate synchronously. Since the two bevel gears (17) are meshed, the driving gear (16) is also meshed with the rotating gear (6). Therefore, the two shooting heads (5) on the double-headed shooting tube (3) are driven by the rotating gear (6) to rotate, so that the connecting path (14) of the shooting head (5) in the horizontal state is staggered with the pipeline (4) of the double-headed shooting tube (3), while the connecting path (14) of the shooting head (5) in the vertical state is connected with the pipeline (4) of the double-headed shooting tube (3); S2, then start the shooting platform (2), because the connecting path (14) of the horizontal shooting head (5) is blocked, the molten material to be tested will only be ejected from the vertical shooting head (5); S3. When the dual-axis motor (8) drives the intermediate rod (15) to rotate, the swing rod (32) arranged on the side wall of the output end of the dual-axis motor (8) will also rotate synchronously. When the driving rod (33) fixed on the top of the swing rod (32) rotates, it will also drive the second hook rod (37) to rotate. Since the second hook rod (37) is arranged at one end of the seesaw (36), the rotation of the second hook rod (37) will also drive the seesaw (36) to rotate around the center rod (34), so that the side torsion spring (35) is compressed, and the stopper (38) arranged at the other end of the seesaw (36) will drive the round rod (40) to rotate. The side swing plate (41) arranged at the bottom of the round rod (40) will drive the through rod (42) to rotate, so that the clamping rod (43) at the other end of the through rod (42) is inserted into the clamping groove (44) on the side wall of the collection box (10), thereby playing a limiting and fixing role for the collection box (10); S4. Since the two output ends of the dual-axis motor (8) rotate simultaneously, the dual-axis motor (8) drives the middle rod (15) to rotate and also drives the shift rod (18) to rotate. The first hook rod (25) abutting against the side wall of the shift rod (18) is driven to move, thereby causing the rotating member (20) to rotate around the top rod (19), causing the top torsion spring (21) to be compressed. The rotation of the rotating member (20) also causes the second blade (23) and the third blade (24) to rotate synchronously. The rotation of the second blade (23) causes the protrusion (26) to squeeze the lifting plate (29), and the telescopic rod (28) is compressed. The squeezed lifting plate (29) also compresses the telescopic spring (31), and then causes the insertion rod (30) to be inserted into the spiral groove (51); S5. The rotation of the third blade (24) also drives the arc plate (27) to rotate, thereby inserting the arc plate (27) into the arc groove (45), thereby further fixing the collection box (10); S6, then start the electric push rod (12), the electric push rod (12) pushes the motion rod (47) to move radially, and because the insertion rod (30) is in contact with the spiral groove (51), the motion rod (47) will move forward and rotate, and the connecting rod (48) and the annular rod (49) fixed at the other end of the motion rod (47) will follow the movement, and then the molten material ejected from the shooting head (5) will be rolled up on the annular rod (49) and move in a direction away from the electric push rod (12); S7, the molten material wound on the annular rod (49) will be subjected to a first round of inspection by the color vision sensor (11) to check whether the color of the molten material meets the requirements. Then, when the annular rod (49) moves away from the electric push rod (12), if the fluidity of the molten material does not meet the requirements, the molten material will drip onto the resistance strain gauge (13) set on the top of the platform (9). If one of the detection results of the color vision sensor (11) and the resistance strain gauge (13) is unqualified, an unqualified signal will be output, thereby helping the staff to understand the operation status of the molten material and the injection molding machine (1); S8. If the molten material is unqualified, the staff needs to adjust the parameters of the injection molding machine (1) and then perform the above steps for testing; if the molten material is qualified, the staff controls the dual-axis motor (8) to rotate in the opposite direction, thereby connecting the horizontal shooting head (5) with the pipeline (4). At this time, the vertical shooting head (5) will be offset from the pipeline (4), and then normal injection molding will be carried out. It should be noted that the first two injection molded parts produced should be discarded to avoid using the remaining test molten material in the pipeline (4).

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