A fully automatic plastic injection molding machine

Abstract

This invention discloses a fully automatic plastic injection molding machine, including a frame and a mounting bracket fixed to the top of the frame. A material conveying section is located on one side of the top of the mounting bracket, and a molding section is located on the other side. The output end of the material conveying section is connected to the input end of the molding section. A heating component for melting and maintaining the temperature of the raw material is located outside the material conveying section, and a water-cooling component for rapid cooling of the injection molding material is located inside the molding section. This invention melts the raw material under the action of the heating component and maintains it in a flowing state. A feeding sleeve and a feeding component convey the material to the molding section, where it enters the molding section for molding and rapidly solidifies under the action of the water-cooling component. When the workpiece is unloaded, a detachment mechanism and a scraping mechanism work together to discharge the injection molded workpiece and injection residue, pushing the workpiece out and dropping it into a collection box. This process is repeated, achieving fully automatic injection molding. After production, the machine can be easily cleaned, and excess material is completely discharged while still molten.

Description

Technical Field

[0001] This invention relates to the field of injection molding machines, and more specifically to a fully automatic plastic injection molding machine. Background Technology

[0002] A plastic injection molding machine, also called a plastic injection molding machine or plastic injection machine, is a primary molding device that uses a plastic chamber to produce various shapes of plastic products from thermoplastic or thermosetting materials. It is available in vertical, horizontal, and all-electric types. A plastic injection molding machine heats the plastic, applies high pressure to the molten plastic, and injects it to fill the mold cavity.

[0003] The working principle of an injection molding machine is similar to that of a syringe. It uses the thrust of a screw (or plunger) to inject pre-plasticized molten plastic (i.e., a viscous flow state) into a closed mold cavity, where it solidifies and shapes to obtain the finished product. Injection molding is a cyclical process, with each cycle mainly including: metered feeding, melting and plasticizing, pressure injection, mold filling and cooling, and mold opening and part removal. During automatic injection molding, issues such as molded parts sticking together and residual molten material on the mold cavity wall affect injection efficiency and cause workpiece defects, compromising the quality of the molded parts. Furthermore, if residual molten material remains inside the machine after injection molding and cannot be removed promptly, it will solidify inside, affecting the machine's continued use. Therefore, existing fully automatic plastic injection molding machines require further improvement.

[0004] Therefore, it is necessary to invent a fully automatic plastic injection molding machine to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a fully automatic plastic injection molding machine. The raw material is melted and kept in a flowing state by a heating component. A feeding sleeve and feeding parts drive the material to the molding section. The material enters the molding section, is molded, and rapidly solidifies under the action of a water-cooling component. When the workpiece is unloaded, a detachment mechanism and a scraping mechanism work together to discharge the injection molded workpiece and injection residue. The workpiece is pushed out and falls into a collection box, and the process is repeated, achieving fully automatic injection molding. After production, the machine can be easily cleaned, and excess material is completely discharged while still molten, thus solving the aforementioned shortcomings in the technology.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a fully automatic plastic injection molding machine, comprising a frame and a mounting frame fixed to the top of the frame, wherein a material conveying section is provided on one side of the top of the mounting frame, and a molding section is provided on the other side of the top of the mounting frame, and the output end of the material conveying section is connected to the input end of the molding section, wherein a heating component for melting raw materials and maintaining temperature is provided outside the material conveying section, and a water cooling component for rapid cooling of the injection molding material is provided inside the molding section;

[0007] The feeding unit includes a feeding sleeve and a feeding component movably disposed inside the feeding sleeve. One end of the feeding sleeve is provided with a support frame, and the feeding sleeve and the support frame are fixedly connected by a flange connecting plate. A feeding channel extends through the top of the support frame and through the feeding sleeve. A feeding hopper is installed at the top of the feeding channel. The feeding component is integrally formed from an auger section, a sealing rod, and a nipple-shaped end, with the sealing rod and nipple-shaped end respectively disposed at both ends of the auger section. An injection molding nozzle is detachably installed on the inner end of the feeding sleeve, and one end of the injection molding nozzle has a funnel that matches the nipple-shaped end. The sealing rod has a first gear fixedly connected to the outer side of the end away from the auger section. The end of the sealing rod is provided with a first electric push rod. The output shaft of the first electric push rod is rotatably connected to the sealing rod, and the sealing rod moves back and forth when the output shaft of the first electric push rod extends or retracts. The top of the mounting frame is fixedly connected with a drive motor. The shaft directly below the feeding sleeve is provided with a shaft rotatably connected to the support frame. The output shaft of the drive motor and the shaft are connected by a belt drive. The outer side of the shaft is provided with a second gear that meshes with the first gear, and the length of the second gear is greater than the length of the first gear.

[0008] The molding section includes a main mold box and an auxiliary mold box. The main mold box is fixedly connected to the mounting frame, and the auxiliary mold box is slidably connected to the mounting frame. A gantry frame is fixedly connected between the top and tail ends of the mounting frame, and a side panel is fixedly connected to one side of the gantry frame. First sliding rods are fixedly installed at each of the four corners of the side panel, and square plates are fixedly connected to the other ends of the first sliding rods. The square plates are fixedly connected to the main mold box by bolts. Second electric push rods are fixedly connected to the middle of both sides of the side panel. The output shafts of the two second electric push rods are connected to a base plate with a central opening. The inner side of the main mold box... The system includes a mold cavity, and an auxiliary mold box with a module that mates with the mold cavity on one side. The module is inserted into the mold cavity to form a chamber. The main mold box, auxiliary mold box, and base plate are arranged in parallel, and all three are slidably connected to a first sliding rod. The bottom of the mold cavity has an injection hole for the injection of plastic, and one end of the injection nozzle is inserted into the injection hole. A metal gasket for sealing is provided at the connection between the injection nozzle and the injection hole. A detachment mechanism is installed between the base plate and the auxiliary mold box to facilitate the automatic dropping of the injection molded workpiece. The main mold box is equipped with a scraping mechanism for cleaning residue.

[0009] In a preferred embodiment of the present invention, the detachment mechanism cooperates with the scraping mechanism to discharge the injection-molded workpiece and injection-molded residue, wherein:

[0010] The detachment mechanism includes an adjustment plate movably connected to one side of the substrate. The substrate and the auxiliary mold box are fixedly connected by a support rod. Push rods are fixedly connected to the four corners of the side of the adjustment plate. The push rods pass through the auxiliary mold box and are slidably connected to the through hole. A first elastic element is sleeved on the outside of the push rod and at the position between the auxiliary mold box and the adjustment plate. A push plate that fits against the outer wall of the module (26) is installed at the end of the push rod away from the adjustment plate. A plate groove matching the push plate is opened on the outside of the module. A top rod is fixedly connected to the side of the adjustment plate near the substrate. An extendable extension post is fixedly connected to the center of the side panel. The top rod and the extension post are coaxially distributed. The top rod passes through the center opening of the substrate and extends to the other side of the substrate.

[0011] The scraping mechanism includes a scraper blade slidably connected inside the mold cavity. The scraper blade has a through-hole at its axis that matches the end of the injection nozzle. An extension rod is fixedly connected to the top of the scraper blade, and a T-shaped plate is fixedly connected to the other end of the extension rod. The T-shaped plate is slidably connected to a first sliding rod. A T-shaped groove matching the T-shaped plate is opened on one side of the main mold box, and a cylindrical groove that fits perfectly with the extension rod is opened at the top of the inner side of the mold cavity. The extension rod is slidably connected to the cylindrical groove. A second elastic element is sleeved on the outer side of the first sliding rod at a position between the square plate and the T-shaped plate. A cylinder is mounted on the square plate, and the cylinder moves through extension and retraction via a pneumatic mechanism. The output end of the cylinder is drivenly connected to the end of the second elastic element.

[0012] As a preferred embodiment of the present invention, the nipple-shaped end is provided with a hollow structure inside, and the end of the nipple-shaped end is provided with a microhole penetrating the hollow structure. The outer side of the nipple-shaped end is provided with a plurality of injection holes penetrating the hollow structure. A pocket plate is integrally provided on the outer side of the nipple-shaped end, and the outer diameter of the pocket plate, the auger section and the sealing rod matches the inner diameter of the feeding sleeve.

[0013] As a preferred embodiment of the present invention, the heating assembly includes an electromagnetic coil, the outer side of the feeding sleeve is provided with a groove distributed in a threaded manner, and the outer side of the feeding sleeve is provided with a heat insulation coating, the electromagnetic coil is wound inside the groove, and the connection end of the electromagnetic coil is electrically connected to an electromagnetic heating controller.

[0014] As a preferred embodiment of the present invention, the water cooling assembly includes an inlet pipe and an outlet pipe, and both the main mold box and the auxiliary mold box are provided with cooling circulation pipes. The inlet pipe is connected to the input end of the cooling circulation pipe, and the outlet pipe is connected to the output end of the cooling circulation pipe.

[0015] The inlet pipe draws cooling water through a water pump, while the outlet pipe discharges the treated water.

[0016] As a preferred embodiment of the present invention, an impeller matrix is ​​provided on the outer side of the shaft, and the impeller matrix is ​​composed of multiple uniformly distributed fan blades;

[0017] The mounting frame is fixedly connected to the top of the rail frame, and the support frame is fixedly connected to the top of the rail frame. A second sliding rod is provided between the mounting frame and the two sides of the main mold box. A positioning plate is fixedly connected between the two second sliding rods, and the output shaft of the electric push rod passes through the positioning plate.

[0018] The top of the rail frame is equipped with a heat insulation cover, and the impeller matrix and the feeding sleeve are both located inside the heat insulation cover. A shield is slidably connected between the two second sliding rods. Heat dissipation holes are opened on the surfaces of the heat insulation cover and the shield, and the heat dissipation holes on the surfaces of the heat insulation cover and the shield are staggered.

[0019] As a preferred embodiment of the present invention, a protective cover is provided on one side of the support frame;

[0020] A cover is fixedly connected to one end of the top of the mounting frame, and third sliding rods are fixedly connected to both sides of the mounting frame. An adjustable cover plate is fitted on the outside of the cover, and the two sides of the adjustable cover plate are slidably connected to the two third sliding rods respectively.

[0021] The adjustable cover has an observation port at the top, and door panels are hinged to both sides of the adjustable cover, with a viewing window made of tempered glass in the middle of the door panels.

[0022] As a preferred embodiment of the present invention, the injection nozzle is provided with a one-way valve, the bottom of the feeding sleeve near the first gear is provided with a return pipe, and the return pipe is provided with a discharge valve. The return pipe extends out of the heat insulation cover, and the output end of the return pipe is connected to a plastic melt conveying pump.

[0023] An air inlet pipe is installed inside the air inlet pipe, and an air inlet pipe runs through the injection nozzle. The air inlet pipe extends out of the heat insulation cover, and an air pump is connected to the input end of the air inlet pipe.

[0024] The fully automatic plastic injection molding machine also includes a controller, the connection terminal of which is electrically connected to a timer. The drive motor, first electric push rod, second electric push rod, electromagnetic heating controller, solenoid valve, plastic melt delivery pump, air pump, and water pump are all electrically connected to the connection terminal of the controller.

[0025] As a preferred embodiment of the present invention, a storage slot is provided on the inner side of the frame and directly below the forming part, and a storage box is movably disposed inside the storage slot.

[0026] The technical effects and advantages provided by the present invention in the above technical solution are as follows:

[0027] 1. The raw material is melted and kept in a flowing state by the heating component. The material is conveyed to the molding section by the transmission method of the feeding sleeve and the feeding part. The material enters the molding section for molding and is quickly solidified under the action of the water cooling component. When the workpiece is unloaded, the ejection mechanism and the scraping mechanism work together to discharge the injection molded workpiece and injection molded residue. The workpiece is pushed out and falls into the collection box. The cycle is repeated to realize fully automatic injection molding. After production is completed, the inside of the device can be easily cleaned. The material is completely discharged in the molten state, which solves the problems of defects in injection molded parts, resulting in poor quality, and the solidification of residual material affecting the use of the device in the existing technology.

[0028] 2. By setting up an insulation cover and a shield to wrap around the heating component, with gaps between the insulation cover and the heating component, the heat is prevented from baking or harming the human body. The heat is blocked by the insulation cover and the shield to maintain the temperature. The drive motor drives the impeller matrix to rotate inside the insulation cover and the shield, making the heat more uniform and improving the melting efficiency of the material. When heat dissipation is required after operation, the shield can be slid on the outside of the insulation cover to open the heat dissipation holes, which facilitates heat dissipation and safe cooling. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0030] Figure 1 This is a first-view perspective perspective view of the overall structure of the present invention;

[0031] Figure 2 This is a second-view perspective perspective view of the overall structure of the present invention;

[0032] Figure 3 This is a third-view perspective view of the overall structure of the present invention;

[0033] Figure 4 This is a front view of the overall structure of the present invention;

[0034] Figure 5 This is a top view of the overall structure of the present invention;

[0035] Figure 6 This is a first-view perspective perspective view of a partial structure of the present invention;

[0036] Figure 7 This is a second-view perspective perspective view of a partial structure of the present invention;

[0037] Figure 8 This is a third-view perspective view of a partial structure of the present invention;

[0038] Figure 9 This is a fourth-view perspective perspective view of a partial structure of the present invention;

[0039] Figure 10 This is a perspective view of the installation structure of the detachment mechanism of the present invention;

[0040] Figure 11 This is a partial cross-sectional perspective view of the main mold box of the present invention;

[0041] Figure 12 This is a partial three-dimensional view of the scraping mechanism of the present invention;

[0042] Figure 13 This is a perspective view of the overall structure of the material conveying section of the present invention;

[0043] Figure 14 This is a perspective view of the internal structure of the material conveying section (extrusion state) of the present invention;

[0044] Figure 15 This is a first-view perspective perspective view of the internal structure of the material conveying section (retracted state) of the present invention;

[0045] Figure 16 This is a second-view perspective perspective view of the internal structure of the material conveying section (retracted state) of the present invention.

[0046] Explanation of reference numerals in the attached figures:

[0047] Frame-1; Mounting bracket-2; Heating assembly-3; Water cooling assembly-4; Feeding sleeve-5; Feeding component-6; Support frame-7; Feeding channel-8; Feeding hopper-9; Injection nozzle-10; First gear-11; First electric push rod-12; Drive motor-13; Shaft-14; Belt-15; Second gear-16; Main mold box-17; Auxiliary mold box-18; Gantry frame-19; Side panel-20; First slide rod-21; Square plate-22; Second electric push rod-23; Base plate-2 4; Mold cavity - 25; Module - 26; Injection hole - 27; Shedding mechanism - 28; Scraping mechanism - 29; Impeller matrix - 30; Rail frame - 31; Second slide bar - 32; Positioning plate - 33; Insulation cover - 34; Shielding cover - 35; Heat dissipation hole - 36; Protective cover - 37; Cover shell - 38; Third slide bar - 39; Adjustable cover plate - 40; Observation port - 41; Return pipe - 42; Air inlet pipe - 43; Controller - 44; Storage slot - 45; Storage box - 46; Support rod - 47;

[0048] Electromagnetic coil-301; Groove-302;

[0049] Inlet pipe - 401; Outlet pipe - 402; Cooling circulation pipe - 403;

[0050] Screw section-601; sealing rod-602; nipple-shaped end-603;

[0051] Micropores - 6031; Injection holes - 6032; Loop plate - 6033;

[0052] Adjusting plate - 281; Push rod - 282; First elastic element - 283; Push plate - 284; Plate groove - 285; Top rod - 286; Extension pile - 287;

[0053] Scraper - 291; Through-hole - 292; Extension rod - 293; T-shaped plate - 294; T-shaped groove - 295; Second elastic element - 296. Detailed Implementation

[0054] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0055] This invention provides, for example Figure 1-16 The fully automatic plastic injection molding machine shown includes a frame 1 and a mounting frame 2 fixed to the top of the frame 1. A material conveying section is provided on one side of the top of the mounting frame 2, and a molding section is provided on the other side of the top of the mounting frame 2. The output end of the material conveying section is connected to the input end of the molding section. A heating component 3 for melting raw materials and maintaining temperature is provided outside the material conveying section, and a water cooling component 4 for rapid cooling of the injection molding material is provided inside the molding section.

[0056] The feeding section includes a feeding sleeve 5 and a feeding component 6 movably disposed inside the feeding sleeve 5. A support frame 7 is provided at one end of the feeding sleeve 5, and the feeding sleeve 5 and the support frame 7 are fixedly connected by a flange connecting plate. A feeding channel 8 passes through the top of the support frame 7 and extends through the feeding sleeve 5. A feeding hopper 9 is installed at the top of the feeding channel 8, and a cover plate is fastened to the top of the feeding hopper 9. The feeding component 6 is integrally formed from an auger section 601, a sealing rod 602, and a nipple-shaped end 603. The sealing rod 602 and the nipple-shaped end 603 are respectively disposed at both ends of the auger section 601. An injection molding nozzle 10 is detachably installed on the inner end of the feeding sleeve 5, and one end of the injection molding nozzle 10 has a funnel groove that matches the nipple-shaped end 603. A first gear 11 is fixedly connected to the outer side of the end of the sealing rod 602 away from the auger section 601. A first electric... The first electric push rod 12 is rotatably connected to the sealing rod 602. When the output shaft of the first electric push rod 12 extends or retracts, it drives the sealing rod 602 to move back and forth. The top of the mounting frame 2 is fixedly connected to the drive motor 13. The feed sleeve 5 is provided with a shaft 14 rotatably connected to the support frame 7. The output shaft of the drive motor 13 and the shaft 14 are connected by a belt 15. The outer side of the shaft 14 is provided with a second gear 16 that meshes with the first gear 11. The length of the second gear 16 is greater than the length of the first gear 11. When the output shaft of the first electric push rod 12 pulls the sealing rod 602, the first gear 11 meshes with the second gear 16. The first gear 11 can slide on the second gear 16. Under this transmission effect, the auger section 601 slides inside the feed sleeve 5, ensuring that the auger section 601 can rotate and transport materials.

[0057] The molding section includes a main mold box 17 and an auxiliary mold box 18. The main mold box 17 is fixedly connected to the mounting frame 2, and the auxiliary mold box 18 is slidably connected to the mounting frame 2. A gantry frame 19 is fixedly connected between the top and tail ends of the mounting frame 2, and a side panel 20 is fixedly connected to one side of the gantry frame 19. First sliding rods 21 are fixedly installed at the four corners of the side panel 20, and square plates 22 are fixedly connected to the other end of the first sliding rods 21. The square plates 22 are fixedly connected to the main mold box 17 by bolts. Second electric push rods 23 are fixedly connected to the middle of both sides of the side panel 20. The output shafts of the two second electric push rods 23 are connected to a base plate 24 with a central opening. A mold cavity 25 is provided inside the main mold box 17, and a mold cavity 25 is provided on one side of the auxiliary mold box 18. The module 26, which is fitted to the mold cavity 25, forms a chamber after being inserted into the mold cavity 25. The main mold box 17, auxiliary mold box 18, and base plate 24 are arranged in parallel, and the main mold box 17, auxiliary mold box 18, and base plate 24 are all slidably connected to the first slide rod 21. The bottom end of the mold cavity 25 is provided with an injection hole 27 for the injection of plastic, and one end of the injection nozzle 10 is inserted into the injection hole 27. A metal gasket for sealing is provided at the connection between the injection nozzle 10 and the injection hole 27. A detachment mechanism 28 is installed between the base plate 24 and the auxiliary mold box 18 to facilitate the automatic drop of the injection molded workpiece. The main mold box 17 is provided with a scraping mechanism 29 for cleaning residue. The detachment mechanism 28 and the scraping mechanism 29 cooperate to discharge the injection molded workpiece and injection residue.

[0058] Furthermore, in the above structure:

[0059] The detachment mechanism 28 includes an adjusting plate 281 movably connected to one side of the substrate 24. The substrate 24 and the auxiliary mold box 18 are fixedly connected by a support rod 47. Push rods 282 are fixedly connected to the four corners of the side of the adjusting plate 281. The push rods 282 pass through the auxiliary mold box 18 and are slidably connected to the through holes. A first elastic element 283 is sleeved on the outside of the push rods 282 and at the position between the auxiliary mold box 18 and the adjusting plate 281. A push plate 284 that fits against the outer wall of the module 26 is installed at the end of the push rod 282 away from the adjusting plate 281, so that the push plate 284 can scrape the outer wall of the module 26. The module 26 and the mold cavity 2 A gap is reserved between 5, and the machine-formed workpiece protrudes from the bottom of the push plate 284, so that the workpiece can be detached. The outer side of the module 26 is provided with a plate groove 285 that matches the push plate 284. The push plate 284 and the plate groove 285 fit together tightly to prevent the molten material from leaking. A top rod 286 is fixedly connected to the side of the adjustment plate 281 near the base plate 24. An extendable and adjustable extension post 287 is fixedly connected to the center of the side panel 20. The top rod 286 and the extension post 287 are coaxially distributed. The top rod 286 passes through the central opening of the base plate 24 and extends to the other side of the base plate 24. During operation, a release agent can be applied to the surface of the mold cavity 25 and the module 26.

[0060] The scraping mechanism 29 includes a scraper 291 slidably connected inside the mold cavity 25. The scraper 291 has a through-hole 292 at its axis that matches the end of the injection nozzle 10. An extension rod 293 is fixedly connected to the top of the scraper 291, and a T-shaped plate 294 is fixedly connected to the other end of the extension rod 293. The T-shaped plate 294 is slidably connected to the first sliding rod 21. A T-shaped groove 295 matching the T-shaped plate 294 is opened on one side of the main mold box 17, and a cylindrical groove that fits perfectly with the extension rod 293 is opened at the top of the inner side of the mold cavity 25. That is, the T-shaped groove 295 accommodates the T-shaped plate 294, and the extension rod 293 is slidably connected to the cylindrical groove. This structure is a precise fit to prevent molten material from entering and affecting product quality.

[0061] A second elastic element 296 is sleeved on the outer side of the first slide bar 21 and at the position between the square plate 22 and the T-shaped plate 294. A cylinder is installed on the square plate 22, and the cylinder moves through extension and retraction via a pneumatic mechanism. The output end of the cylinder is connected to the end of the second elastic element 296.

[0062] When the main mold box 17 and the auxiliary mold box 18 are closed, the module 26 enters the mold cavity 25, and there is a workpiece shaping chamber between them. At this time, the second electric push rod 23 is in the extended state. Under the extrusion state, the second elastic element 296 is compressed, and the T-shaped plate 294 is housed inside the T-shaped groove 295. The extension rod 293 is housed inside the cylindrical groove, and the cylindrical groove restricts the extension rod 293 to move in a specific direction, driving the scraper 291 to scrape and slide inside the mold cavity 25, and it can extend out of the mold cavity 25, that is, after molding, the workpiece is discharged. When the workpiece is ejected, the output end of the second electric push rod 23 retracts, pulling the connection structure between the base plate 24 and the auxiliary mold box 18 back. The output end of the control cylinder pushes the second elastic element 296 to pop out the T-shaped plate 294 under stable buffer. Together with the extension rod 293 and the scraper 291, the workpiece is pulled out of the mold cavity 25, and the inner wall is scraped to clean the residue. When the adjusting plate 281 retracts to the end, the push rod 286 and the extension post 287 are pressed together, so that the adjusting plate 281 pushes the push rod 282, and the plate groove 285 pushes the workpiece to push it away.

[0063] Furthermore, in the above technical solution, the nipple-shaped end 603 is internally hollow, and the end of the nipple-shaped end 603 is provided with a microhole 6031 penetrating the hollow structure. The outer side of the nipple-shaped end 603 is provided with multiple injection holes 6032 penetrating the hollow structure. A pocket plate 6033 is integrally provided on the outer side of the nipple-shaped end 603. The outer diameter of the pocket plate 6033, the auger section 601 and the sealing rod 602 matches the inner diameter of the feeding sleeve 5. The outer wall of the pocket plate 6033 fits against the inner wall of the feeding sleeve 5, which can scrape and clean the molten material adhering to the inner wall of the feeding sleeve 5.

[0064] Furthermore, in the above technical solution, the heating component 3 includes an electromagnetic coil 301, and the outer side of the feeding sleeve 5 is provided with a groove 302 distributed in a threaded manner. The outer side of the feeding sleeve 5 is provided with a heat insulation coating. The electromagnetic coil 301 is wound inside the groove 302. The connection end of the electromagnetic coil 301 is electrically connected to an electromagnetic heating controller. The electromagnetic heating controller is connected to the electromagnetic coil 301. When energized, it generates heat and transfers heat to the inside of the feeding sleeve 5 to further heat and keep the molten material warm, thereby improving the fluidity of the material.

[0065] Furthermore, in the above technical solution, the water cooling component 4 includes an inlet pipe 401 and an outlet pipe 402, and both the main mold box 17 and the auxiliary mold box 18 are provided with cooling circulation pipes 403. The inlet pipe 401 is connected to the input end of the cooling circulation pipe 403, and the outlet pipe 402 is connected to the output end of the cooling circulation pipe 403.

[0066] The inlet pipe 401 draws cooling water through a water pump at its input end, and the outlet pipe 402 discharges the treated water at its output end. The inlet pipe 401, the cooling circulation pipe 403, and the outlet pipe 402 constitute a water-cooling circulation system, which enables the material to cool down and solidify rapidly after molding.

[0067] Furthermore, in the above technical solution, an impeller matrix 30 is provided on the outer side of the shaft 14, and the impeller matrix 30 is composed of multiple evenly distributed fan blades;

[0068] The top of the mounting frame 2 is fixedly connected to the rail frame 31, and the support frame 7 is fixedly connected to the top of the rail frame 31. The mounting frame 2 and the two sides of the main mold box 17 are provided with second sliding rods 32. The positioning plate 33 is fixedly connected between the two second sliding rods 32, and the output shaft of the electric push rod 282 passes through the positioning plate 33.

[0069] A heat insulation cover 34 is installed on the top of the rail frame 31, and the impeller matrix 30 and the feeding sleeve 5 are both located inside the heat insulation cover 34. A shield 35 is slidably connected between the two second slide rods 32. Heat dissipation holes 36 are opened on the surface of both the heat insulation cover 34 and the shield 35, and the heat dissipation holes 36 on the surface of the heat insulation cover 34 and the shield 35 are staggered. The heat insulation cover 34 and the shield 35 wrap around the outside of the heating component 3, and there is a gap between them and the heating component 3 to prevent the temperature from baking or harming the human body. The heat is blocked by the heat insulation cover 34 and the shield 35 to maintain the temperature. Furthermore, the drive motor 13 drives the impeller matrix 30 to rotate inside the heat insulation cover 34 and the shield 35, so that the heat is more even. When heat dissipation is required after operation, the shield 35 slides on the outside of the heat insulation cover 34 to open the heat dissipation holes 36 and facilitate heat dissipation.

[0070] Furthermore, in the above technical solution, a protective cover 37 is provided on one side of the support frame 7. The protective cover 37 is used to protect the drive motor 13 and its transmission structure, and the bottom of the protective cover 37 is set as an open structure.

[0071] The top end of the mounting bracket 2 is fixedly connected to a cover 38, and the two sides of the mounting bracket 2 are fixedly connected to third sliding rods 39. An adjustable cover plate 40 is sleeved on the outside of the cover 38, and the two sides of the adjustable cover plate 40 are slidably connected to the two third sliding rods 39 respectively. The adjustable cover plate 40 can slide left and right, and can be tightened by screws after adjustment.

[0072] The adjustable cover plate 40 is provided with an observation port 41 at the top, through which the operation of the molding part can be observed. Both sides of the adjustable cover plate 40 are hinged with door panels, and the door panels are provided with handles to facilitate opening the door panels. The door panels and the adjustable cover plate 40 can be locked, and the middle of the door panels is provided with a viewing window made of tempered glass, which can be directly observed through the glass.

[0073] Furthermore, in the above technical solution, the injection nozzle 10 is equipped with a one-way valve, the bottom of the feeding sleeve 5 near the first gear 11 is connected to a return pipe 42, and the return pipe 42 is equipped with a discharge valve. The return pipe 42 extends out of the heat insulation cover 34, and the output end of the return pipe 42 is connected to a plastic melt conveying pump. The plastic melt conveying pump is used to discharge excess melt material into the feeding sleeve 5.

[0074] An electromagnetic valve is installed inside the air inlet pipe 43. The electromagnetic valve causes the molten material to be discharged from the micropore 6031. The air inlet pipe 43 passes through the injection nozzle 10. The air inlet pipe 43 extends out of the heat insulation cover 34. An air pump is connected to the input end of the air inlet pipe 43.

[0075] The fully automatic plastic injection molding machine also includes a controller 44. The controller 44 is electrically connected to a timer. The drive motor 13, the first electric push rod 12, the second electric push rod 23, the electromagnetic heating controller, the solenoid valve, the plastic melt conveying pump, the air pump and the water pump are all electrically connected to the controller 44. The control system of this device can realize semi-automatic control and fully automatic control. Through the controller 44 and the timer, the workpiece can be automatically and accurately processed.

[0076] During injection molding, the solenoid valve and unloading valve are closed. The molten material is conveyed through the auger section 601 and the feeding sleeve 5 to the nipple-shaped end 603, where it is discharged from the micro-hole 6031. Under the pressure of the extrusion, it passes through the one-way valve and enters the molding section for molding. After the work is completed, molten material remains inside the device. To clean and discharge this material, the solenoid valve and unloading valve are opened, and the output shaft of the drive motor 13 is first controlled to rotate in the reverse direction. That is, the auger section 601 and the feeding sleeve 5 are used to reverse the molten material and convey it to the return pipe 42. The molten material is discharged under the negative pressure of the plastic melt conveying pump. Under the pull of the feeding component 6, the baffle 6033 cleans the inner wall of the feeding sleeve 5, making the cleaning more thorough. To further discharge the residual material, hot air is introduced through the air inlet pipe 43 connected to the air pump output end, which pressurizes the inside of the injection nozzle 10, thereby discharging the molten material inside the injection nozzle 10. The gas blows in the opposite direction from the micropore 6031, which can discharge the residual material in the nipple-shaped end 603 and spirally transmit it out of the feeding sleeve 5.

[0077] Furthermore, in the above technical solution, a storage slot 45 is provided on the inner side of the frame 1 and located directly below the forming part, and a storage box 46 is movably arranged inside the storage slot 45. The bottom of the storage slot 45 can also be set as an inclined surface. In this case, the storage box 46 is placed on the ground, and the workpiece can slide directly into the storage box 46 after falling.

[0078] The fully automatic plastic injection molding machine provided by this invention, when in use:

[0079] Material is placed in the feeding hopper 9 and gradually enters the feeding sleeve 5 through the feeding channel 8. The first electric push rod 12 is controlled to extend its output shaft until the nipple-shaped end 603 is inserted into the funnel groove. The output shaft of the drive motor 13 drives the shaft 14 through the belt 15 and the shaft 14, thereby causing the second gear 16 to rotate. It further meshes with the first gear 11 to drive the feeding component 6 to rotate. The auger section 601 conveys the material inside the feeding sleeve 5. Under the action of the heating component 3, the raw material melts and remains in a flowing state. At this time, the solenoid valve and the discharge valve are in the closed state. The molten material is conveyed to the nipple-shaped end 603 through the auger section 601 and the feeding sleeve 5. It is discharged from the micropore 6031 and then passes through the one-way valve under the action of extrusion pressure to enter the forming part for forming. Under the action of the water cooling component 4, it solidifies rapidly.

[0080] When the workpiece is unloaded, the output end of the second electric push rod 23 retracts, pulling the connection structure between the base plate 24 and the auxiliary mold box 18 back. The output end of the control cylinder pushes the second elastic element 296 to stably buffer and pop out the T-shaped plate 294. Together with the extension rod 293 and the scraper 291, the workpiece is pulled out of the mold cavity 25, and the inner wall is scraped to clean the residue. When the adjusting plate 281 retracts to the end, the push rod 286 and the extension post 287 are pressed together, so that the adjusting plate 281 pushes the push rod 282. The push plate 284 is dislodged from the plate groove 285 and pushes the workpiece out and drops it into the storage box 46. The cycle is repeated to realize fully automatic injection molding.

[0081] After production is completed, the inside of the device is cleaned. The solenoid valve and the unloading valve are opened. First, the output shaft of the drive motor 13 is controlled to rotate in reverse. That is, the auger section 601 and the feeding sleeve 5 are used to transport the molten material in reverse to the return pipe 42. Under the negative pressure suction of the plastic melt conveying pump, the molten material is discharged. Under the pull of the feeding part 6, the baffle 6033 cleans the inner wall of the feeding sleeve 5, making it more thorough. In order to further discharge the residual material, the air pump output end is connected to the air inlet pipe 43 to introduce hot air. The air is pressurized inside the injection nozzle 10, thereby discharging the molten material inside the injection nozzle 10. The gas blows in reverse from the micropore 6031, which can discharge the residual material in the nipple-shaped end 603 and spirally transmit it out of the feeding sleeve 5.

[0082] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A fully automatic plastic injection molding machine comprising a frame and a mounting frame fixed on the top of the frame, characterized in that: The top of the mounting frame is provided with a material conveying part on one side, and a forming part on the other side, and the output end of the material conveying part is connected with the input end of the forming part, the material conveying part is provided with a heating assembly outside for melting and temperature keeping of raw materials, and the forming part is provided with a water cooling assembly inside for rapid cooling of injection materials; The forming part comprises a main mold box and an auxiliary mold box, the main mold box is fixedly connected with the mounting frame, and the auxiliary mold box is slidingly connected with the mounting frame, the tail end of the top of the mounting frame is fixedly connected with a gantry between both sides, one side of the gantry is fixedly connected with a side panel, first sliding rods are fixedly installed at four corners of the side panel, square plates are fixedly connected with the other ends of the first sliding rods, the square plates are fixedly connected with the main mold box through bolts, second electric push rods are fixedly connected with the middle parts of the two sides of the side panel, a center hole is formed in a base plate which is connected with output shafts of the two second electric push rods, a mold cavity is arranged in the inner side of the main mold box, a mold block which cooperates with the mold cavity is arranged on one side of the auxiliary mold box, the main mold box, the auxiliary mold box and the base plate are arranged in parallel, and the main mold box, the auxiliary mold box and the base plate are slidingly connected with the first sliding rods, an injection hole for injection of injection materials is formed in the bottom end of the mold cavity, an injection nozzle is inserted into the injection hole, a metal gasket is arranged at the connection between the injection nozzle and the injection hole for sealing, a falling mechanism is arranged between the base plate and the auxiliary mold box to facilitate automatic falling of injection workpieces, and a scraping mechanism is arranged on the main mold box to clean residues; The falling mechanism and the scraping mechanism cooperate to discharge the injection workpieces and injection residues, wherein: The falling mechanism comprises an adjusting plate movably connected to one side of the base plate, the base plate and the auxiliary mold box are fixedly connected through a support rod, push rods are fixedly connected to four corners of the side of the adjusting plate, the push rods penetrate the auxiliary mold box and are slidingly connected with penetrating holes, first elastic members are sleeved with the push rods outside and located between the auxiliary mold box and the adjusting plate, a push plate is arranged at the end of the push rod away from the adjusting plate, a plate groove matched with the push plate is formed in the outer side of the mold block, a jacking rod is fixedly connected to the side of the adjusting plate close to the base plate, and an extendable adjusting extension pile is fixedly connected to the center of the side plate, the jacking rod and the extension pile are coaxially arranged, and the jacking rod penetrates the center hole of the base plate and extends to the other side of the base plate; The scraping mechanism comprises a scraping piece slidingly connected in the mold cavity, a through hole matched with the end of the injection nozzle is arranged at the shaft center of the scraping piece, an extension rod is fixedly connected to the top of the scraping piece, a T-shaped plate is fixedly connected to the other end of the extension rod, the T-shaped plate is slidingly connected with the first sliding rod, a T-shaped groove matched with the T-shaped plate is formed in one side of the main mold box, a cylindrical groove tightly fitted with the extension rod is formed in the top end of the inner side of the mold cavity, and the extension rod is slidingly connected with the cylindrical groove, and a second elastic member is sleeved with the first sliding rod outside and located between the square plate and the T-shaped plate.

2. A fully automatic plastic injection molding machine according to claim 1, characterized in that: The feeding part comprises a feeding sleeve and a feeding piece movably arranged inside the feeding sleeve, one end of the feeding sleeve is provided with a support frame, and the feeding sleeve and the support frame are fixedly connected through a flange connecting disc, a feeding channel penetrates through the top of the support frame and the feeding sleeve, a feeding hopper is installed on the top of the feeding channel, the feeding piece is integrally formed by an auger section, a plugging rod and a nipple-shaped end, and the plugging rod and the nipple-shaped end are arranged at two ends of the auger section respectively, a injection nozzle is detachably installed on the inner side of the feeding sleeve, one end of the injection nozzle is provided with a funnel groove matched with the nipple-shaped end, a first gear is fixedly connected to the outer side of the end of the plugging rod away from the auger section, a first electric push rod is arranged on the end of the plugging rod, the output shaft of the first electric push rod is rotationally connected with the plugging rod, and the first electric push rod output shaft drives the plugging rod to move forward and backward when it is stretched and retracted, a driving motor is fixedly connected to the top of the mounting frame, a shaft is rotationally connected with the support frame below the feeding sleeve, and the output shaft of the driving motor and the shaft are drivingly connected through a belt, a second gear is engagedly connected with the first gear on the outer side of the shaft, and the length of the second gear is greater than that of the first gear.

3. A fully automatic plastic injection molding machine according to claim 2, characterized in that: The inside of the nipple-shaped end is provided with a hollow structure, and the end of the nipple-shaped end is provided with a micropore penetrating through the hollow structure, the outer side of the nipple-shaped end is provided with a plurality of injection holes penetrating through the hollow structure, and the outer side of the nipple-shaped end is integrally provided with a flap, and the outer diameters of the flap, the auger section and the plugging rod are matched with the inner diameter of the feeding sleeve.

4. A fully automatic plastic injection molding machine according to claim 2, characterized in that: The heating assembly comprises an electromagnetic coil, the outer side of the feeding sleeve is provided with grooves distributed in a threaded manner, and the outer side of the feeding sleeve is provided with a heat insulation coating, the electromagnetic coil is arranged inside the grooves, and the connecting end of the electromagnetic coil is electrically connected with an electromagnetic heating controller.

5. A fully automatic plastic injection molding machine according to claim 2, characterized in that: The water cooling assembly comprises an inlet pipe and an outlet pipe, and the inside of the main mold box and the auxiliary mold box is provided with a cooling circulation pipeline, the inlet pipe is connected with the input end of the cooling circulation pipeline, and the outlet pipe is connected with the output end of the cooling circulation pipeline; The input end of the inlet pipe draws cooling water through a water pump, and the output end of the outlet pipe discharges treated water.

6. A fully automatic plastic injection molding machine according to claim 4, characterized in that: The outer side of the shaft is provided with an impeller matrix, and the impeller matrix is composed of a plurality of uniformly distributed fan plates; The top of the mounting frame is fixedly connected with a rail frame, and the support frame is fixedly connected to the top end of the rail frame, a second sliding rod is arranged between the mounting frame and the two sides of the main mold box, a positioning plate is fixedly connected between the two second sliding rods, and the output shaft of the electric push rod penetrates through the positioning plate; A heat preservation cover is installed on the top of the rail frame, and the impeller matrix and the feeding sleeve are arranged inside the heat preservation cover, a shielding cover is slidingly connected between the two second sliding rods, and the surfaces of the heat preservation cover and the shielding cover are provided with heat dissipation holes, and the heat dissipation holes on the surfaces of the heat preservation cover and the shielding cover are staggered.

7. A fully automatic plastic injection molding machine according to claim 5, characterized in that: One side of the support frame is provided with a protective cover; One end of the top of the mounting frame is fixedly connected with a cover, the two sides of the mounting frame are fixedly connected with third sliding rods, and the outer side of the cover is sleeved with an adjustable cover plate, and the two sides of the adjustable cover plate are slidingly connected with the two third sliding rods respectively. The adjustable cover top is provided with an observation port, and the adjustable cover is hinged with door plates on both sides, and the middle part of the door plate is provided with a visible window made of tempered glass.

8. A fully automatic plastic injection molding machine according to claim 7, characterized in that: The injection nozzle is internally provided with a one-way valve, the feeding sleeve is penetrated by a return pipeline at the bottom of the first gear, the return pipeline is internally provided with a discharge valve, the return pipeline extends out of the heat preservation cover, and the return pipeline output end is connected with a plastic melt delivery pump; An electromagnetic valve is installed in the air inlet pipeline, and the injection nozzle is penetrated by the air inlet pipeline, the air inlet pipeline extends out of the heat preservation cover, and the air inlet pipeline input end is connected with an air pump.

9. A fully automatic plastic injection molding machine according to claim 8, characterized in that: The control device is electrically connected with the timer at the connection end, and the driving motor, the first electric push rod, the second electric push rod, the electromagnetic heating controller, the electromagnetic valve, the plastic melt delivery pump, the air pump and the water pump are all electrically connected with the connection end of the control device.

10. A fully automatic plastic injection molding machine according to claim 1, characterized in that: The inner side of the rack and the position directly below the forming part are provided with a receiving notch, and the receiving box is movably arranged in the receiving notch.

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