Automatic injection molding equipment applied to production of large injection molding parts

Abstract

The invention relates to the field of transfer molding injection molding equipment, in particular to automatic injection molding equipment applied to production of large injection molded parts, which comprises a machine body, a fixed mold and a movable mold are arranged in the machine body in a sliding manner, cavities are formed in the fixed mold and the movable mold, and a plurality of push rods are arranged corresponding to multiple side mold closing surfaces of the fixed mold and are distributed on the bottom wall of the cavity of the fixed mold. The plurality of push rods are perpendicular to the tangential direction of a mold closing surface where the push rods are located, and driving pieces are arranged in the fixed mold and correspond to the push rods; the two pulling pieces are arranged on the mold closing face of the movable mold in a horizontal sliding mode, the two vertical adjacent faces of the mold closing face of the movable mold, the sliding ends of the pulling pieces are hinged to the movable mold, and adsorption assemblies are arranged on the opposite sides of the two pulling pieces; and the blanking piece is connected to the inner bottom wall of the machine body in a sliding manner and arranged below the movable mold and the fixed mold, and the blanking piece slides in multiple directions in a horizontal plane and a vertical plane. The automatic injection molding equipment has the effects that the production efficiency of large injection molding parts is improved, and the matching degree of assemblies between the automatic injection molding equipment is improved.

Description

Technical Field

[0001] The present application relates to the field of transfer molding injection molding equipment, and in particular to an automated injection molding equipment used for the production of large injection molded parts. Background Art

[0002] Injection molding machine is a very important equipment in the plastic processing industry. It is used to inject melted plastic or other plastic materials into the mold. To be precise, it is pushed into the mold cavity by a plunger, and cooled and solidified by the cooling component to form the required plastic products or parts.

[0003] The injection molding process of the injection molding machine is relatively simple. First, the raw materials are added into the hopper, and the raw materials are heated to a molten state through the heating component inside the injection molding machine. Then, the molten plastic is injected into the closed mold cavity at high pressure through the injection system. The plastic product is then cooled and solidified in the cavity. After molding, the mold can be opened and taken out.

[0004] However, for the production of large injection molded products, extra attention needs to be paid to the stability of the mold, the pressure of the injection head, the injection position, etc. when designing the injection molding equipment, and special attention should be paid to the stable transportation and unloading of the molded parts after demolding. Currently, the method of transporting large injection molded parts after demolding adopts the suction cup lifting method. Specifically, after the mold is opened, the pushing member provided inside the mold pushes the molded part to form a gap with the mold, and then the suction cup device at the top of the injection molding machine fits the molded part, and the molded part is fixed on the suction cup device by negative pressure, and then the unloading is taken out. With respect to the above-mentioned related technologies, the inventor believes that the traditional unloading process has too few coordination, and the steps of the unloading process need to be performed sequentially, resulting in insufficient production efficiency of large injection molded parts. Summary of the invention

[0005] In order to increase the production efficiency of large injection molded parts and improve the coordination between components of automated injection molding equipment, the present invention provides an automated injection molding equipment for the production of large injection molded parts.

[0006] The present invention provides an automated injection molding equipment for the production of large injection molded parts, which adopts the following technical solutions: An automated injection molding device for the production of large injection molded parts comprises a machine body, a fixed mold and a movable mold are slidably arranged inside the machine body, and cavities are opened on the opposite sides of the fixed mold and the movable mold, and further comprises: Push rods are provided in plurality corresponding to the multiple side mold surfaces of the fixed mold, distributed on the bottom wall of the cavity of the fixed mold, and slidably arranged inside the fixed mold, the plurality of push rods are perpendicular to the tangent direction of the mold surface where they are located, and driving parts are arranged inside the fixed mold corresponding to the push rods; Two pulling members are horizontally slidably arranged on the movable mold joint surface and two vertically adjacent surfaces of the joint surface, the sliding ends of the pulling members are hinged to the movable mold, and adsorption components are arranged on the opposite sides of the two pulling members for adsorbing the molded parts; A blanking piece is slidably connected to the inner bottom wall of the machine body and is arranged below the movable mold and the fixed mold. The blanking piece performs multi-directional sliding in horizontal and vertical planes.

[0007] By adopting the above technical solution, the traditional injection molding equipment is improved and added around the transfer molding related structure, so as to enhance the material removal efficiency and component matching degree after the transfer molding process of the injection molding equipment; specifically, the material removal efficiency is improved by the coordinated operation of the push rod, the pulling part and the material removal part; The push rod is arranged on the bottom wall of the cavity and distributed at the injection position of the cavity. During the injection process, the end of the push rod should be flush with the membrane surface of the fixed mold to avoid affecting the structural molding of the injection molded part. When the injection inside the cavity is completed and cooled and finalized, the fixed mold and the movable mold are opened, and a gap is formed between the opposite sides of the fixed mold and the movable mold. The driving member drives the push rod to slide, and the end of the push rod protrudes from the bottom wall surface of the cavity of the fixed mold to push the molded part away from the fixed mold surface for subsequent unloading. The push rod should be kept perpendicular to the tangent direction of the mold surface to ensure the best pushing effect. The pulling member is used to cooperate with the above-mentioned push rod and operate synchronously with the push rod. When the molded part is pushed by the push rod, the molded part is pulled on the movable mold side. Since the extension length of the push rod is limited, the pulling member remains in operation after the push rod stops operating and continues to transport the molded part. However, unlike the push rod, the pulling member is slidably arranged, and both ends extend to two adjacent vertical surfaces of the movable mold. When the movable mold and the fixed mold are closed, the pulling member slides to the two opposite vertical sides of the movable mold to avoid structural interference in the closing of the movable mold and the fixed mold. After the molded part is cooled and finalized, and the fixed mold and the movable mold are opened, the pulling member slides to the closing surface of the movable mold to absorb and pull the molded part. After the movable mold and the fixed mold are opened, the pulling part operates at the same time, and the unloading part cooperates with the pulling part to pull the molded part until it is completely separated from the movable mold and the fixed mold, and the unloading part transports it to the injection molding equipment.

[0008] Optionally, a smooth plate is formed at one end of the push rod close to the movable mold, and a surface of one side of the smooth plate is flush with the mold surface of the fixed mold.

[0009] By adopting the above technical solution, a smooth plate is used to increase the force application area of ​​the push rod end. It is easy to concentrate stress by pushing only through the push rod end. The cooling and shaping time of the molded part is not long, the internal structure strength is not high, and the body material is still relatively soft. In the technical solution for increasing the material feeding speed, the cooling and shaping time is even shorter, so it is necessary to increase the end area of ​​the push rod to disperse the stress. In addition, if a smooth plate is not added, during transfer molding, that is, cavity injection molding, the high-pressure environment inside the cavity can easily squeeze the molten state into the fixed mold along the gap of the push rod. Therefore, setting a smooth plate can increase the airtightness of the push rod gap and isolate the sliding gap of the push rod from the cavity.

[0010] Optionally, the movable mold clamping surface and two adjacent sides of the clamping surface are horizontally provided with pulling slide grooves, and the pulling slide grooves connect the clamping surface to the two adjacent sides of the clamping surface; In addition, the pulling member includes: The pulling slide rod has one end hinged and slidably connected to the two pulling slide grooves, the pulling slide rod rotates horizontally around the hinged end, and multiple negative pressure plates are arranged on the opposite sides of the two pulling slide rods, and the negative pressure plates are distributed at equal intervals along the length direction of the pulling slide rod; the main body of the pulling slide rod is bent in the direction close to the opposite sides.

[0011] By adopting the above technical solution, the pull slide grooves are all opened at the corners of the mold surface and the adjacent vertical surface, connecting the two surfaces, so that the pull slide rod can slide horizontally at the intersection of the adjacent surfaces; Specifically, one end of the pulling slide rod is adapted to the pulling slide groove and is hinged to the pulling slide groove, which can be realized in the form of a slider, that is, the slider is slid inside the pulling slide groove, and the slider is hinged to the pulling slide rod, so that the pulling slide rod can rotate in the horizontal plane around the hinged end; therefore, when the movable mold and the fixed mold are closed, the closing surface of the movable mold is fitted with the closing surface of the movable mold, and the pulling slide rod slides along the pulling slide groove to the adjacent surface of the closing surface of the movable mold to avoid structural interference; while opening the mold, the pulling slide rod slides along the pulling slide groove to the closing surface, and the molded part is adsorbed by the adsorption components arranged on the opposite sides of the two pulling slide rods.

[0012] Optionally, the pulling member further includes: A fixing rod is vertically arranged at the intersection of the mold surface of the movable mold and two opposite vertical surfaces, and the fixing rods on both sides of the movable mold are symmetrically distributed; A pull slide bar, one end of which extends to the mold-matching surface of the movable mold, and the other end of which extends to two vertically opposite surfaces, and the pull slide bar is vertically slidably connected to the fixed rods on both sides of the movable mold; The pulling slide groove is arranged on the opposite sides of the two pulling slide strips.

[0013] By adopting the above technical solution, the above pulling slide groove is opened on the pulling slide bar which can be lifted and lowered vertically, so that the pulling slide bar can adjust the height in the vertical plane in addition to rotating and sliding horizontally, thereby increasing the degree of freedom of the pulling slide bar and flexibly adjusting the adsorption force point of the molded part.

[0014] Optionally, the blanking piece includes: A material discharge block is arranged on one side of the movable mold and the fixed mold, and a material discharge groove is opened on the material discharge block. The opening direction of the material discharge groove is perpendicular to the opening and closing direction of the fixed mold and the movable mold, and the material discharge block is passed through both ends of the material discharge groove; A material discharge rail is slidably connected in the material discharge chute, and a fixing piece is slidably connected on the material discharge rail for fixing the formed piece.

[0015] By adopting the above technical solution, the blanking assembly is used to cooperate with the pulling member and the push rod to complete the blanking of a single molded part, and its blanking direction is perpendicular to the opening and closing direction of the movable mold and the fixed mold to ensure that the blanking path is the shortest path; Specifically, the material discharge block is arranged at one end of the movable mold and the fixed mold, and a material discharge trough is provided on the material discharge block, so that the length direction of the material discharge trough is perpendicular to the mold closing direction of the movable mold and the fixed mold, and the material discharge rail slides along the length direction of the material discharge trough, thereby realizing the sliding of the fixing part on the material discharge rail along the length direction of the material discharge trough; when opening the mold, the material discharge rail slides along the material discharge trough of the material discharge block to between the movable mold and the fixed mold, and the fixing part slides along the material discharge rail to the molded part to fix the molded part, and then the molded part is transported along the material discharge direction to complete the material discharge; In the above process, the sliding of the material removal rail can extend the sliding distance of the fixing member.

[0016] Optionally, the movable mold and the fixed mold are both provided with a material discharge cavity at the bottom side of the cavity, and the material discharge cavity is adapted to the material discharge block; The inner bottom wall of the machine body is provided with a lifting member corresponding to the blanking block, which is used for driving the blanking block to rise and fall.

[0017] By adopting the above technical solution, the material blanking cavity opened at the bottom of the movable mold and the fixed mold accommodates the material blanking block, and the lifting member at the bottom of the material blanking block drives the material blanking block to rise and fall; Therefore, when the movable mold and the fixed mold are combined for injection molding, the material removal block, the material removal rails and the fixing parts on the material removal block are retracted in the material removal trough, or protrude from the material removal trough but are stored in the material removal cavity; when the movable mold and the fixed mold are opened at the same time, the top side of the material removal cavity is opened, and the lifting part drives the material removal block to rise to the part between the movable mold and the fixed mold and below the molded part, abuts against the molded part, and transports the molded part; The blanking cavity is opened to set the blanking assembly below the movable mold and the fixed mold, so that the blanking assembly is kept at the shortest distance from the movable mold and the fixed mold, and is lifted at the same time when the mold is opened, thereby improving the degree of coordination between the blanking assembly and the mold.

[0018] Optionally, the fixing member includes: A fixed slider, slidably connected to the feed chute; An electric cylinder is vertically arranged on the top side of the fixed sliding block, and a piston rod of the electric cylinder is vertically upward; A blanking plate is horizontally arranged at the end of the piston rod of the electric cylinder.

[0019] By adopting the above technical solution, the support of the blanking plate on the molded part is the main way for the fixing part to connect the molded part. Since the volume of large molded parts is relatively large, the setting of rigid connectors such as grabbing and adsorption requires additional consideration of the fulcrum, and the design cost is high. The blanking plate supports the entire molded part and quickly transports it to the subsequent device, which is the most cost-effective option. Specifically, after the mold is opened, the piston rod of the electric cylinder extends to drive the blanking plate to rise. After the push rod pushes the molded part between the movable mold and the fixed mold, the blanking plate abuts the bottom side of the molded part, and then the electric cylinder keeps the piston rod extended and slides along the blanking rail. After sliding to the subsequent component, the piston rod of the electric cylinder descends to place the molded part on the subsequent component.

[0020] Optionally, the blanking piece further includes: A conveyor belt is horizontally arranged, with a conveying direction perpendicular to the sliding direction of the unloading plate, and one end of the conveyor belt extends below the unloading rail; The baffle plate is vertically arranged on the edge of one side of the conveyor belt away from the unloading block, and the plate surface is perpendicular to the sliding direction of the unloading plate. By adopting the above technical solution, the conveyor belt conveys the molded parts output by the unloading assembly to the rear of the injection molding line processing direction. Since there is no rigid connection between the support plate and the molded parts, it is necessary to set a material blocking plate to block the molded parts in order to improve the unloading efficiency and the sliding speed of the support plate, so as to prevent the molded parts from continuing to slide and detach from the conveyor belt due to the inertia after the support plate stops. Therefore, the setting of the baffle plate can increase the sliding speed of the support plate, that is, the unloading speed of the molded part.

[0021] In summary, the present application includes at least one of the following beneficial technical effects: 1. Multiple push rods are evenly distributed on the bottom wall of the fixed mold cavity and are perpendicular to the tangent direction of the mold surface at their respective positions. They are precisely pushed by the driving parts, effectively avoiding the mold jamming caused by uneven force of traditional single-point push rods, and significantly improving the demoulding efficiency and success rate; 2. The pulling piece is set on the movable mold surface and its two vertical adjacent surfaces. The molded parts are adsorbed by the adsorption components to achieve multi-directional synchronous action, enhance the adaptability of the equipment to injection molded parts of different shapes and sizes, and improve production flexibility; 3. The unloading parts have multi-directional sliding functions in the horizontal and vertical planes. Combined with the design of lifting parts and unloading rails, the unloading process is smoother, the unloading time is reduced, and the overall production efficiency is significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0023] Figure 2It is a schematic diagram of the structure of the movable mold and the fixed mold opening in the embodiment of the present application.

[0024] Figure 3 This is a cross-sectional view made to highlight the push rod inside the fixed mold in the embodiment of the present application.

[0025] Figure 4 It is a structural diagram designed to highlight the pulling slide cavity in the embodiment of the present application.

[0026] Figure 5 It is a structural diagram designed to highlight the pulling of the slide bar in the embodiment of the present application.

[0027] Figure 6 It is a structural schematic diagram made to highlight the blanking block in the embodiment of the present application.

[0028] Explanation of the reference numerals in the accompanying drawings: 1. Machine body; 2. Fixed mold; 21. Push rod; 22. Smooth plate; 3. Moving mold; 31. Pull slide cavity; 32. Fixed rod; 33. Pull slide bar; 34. Pull slide groove; 35. Pull slider; 36. Pull slide rod; 37. Negative pressure plate; 4. Mold surface; 41. Cavity; 5. Unloading cavity; 51. Unloading block; 52. Unloading trough; 53. Unloading rail; 54. Fixed slider; 55. Unloading plate; 6. Conveyor frame; 61. Conveyor belt; 62. Baffle plate. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-6 This application is described in further detail.

[0030] The present application embodiment discloses an automated injection molding device for the production of large injection molded parts. Figure 1 and Figure 2 An automated injection molding equipment for the production of large injection molded parts includes a machine body 1, an injection molding chamber is provided inside the machine body 1, a set of fixed molds 2 and a set of movable molds 3 are arranged relatively inside the injection molding chamber, and cavities 41 are respectively provided on the opposite sides of the fixed molds 2 and movable molds 3, that is, on the mating surfaces 4 of the two (because the cavities 41 of different molded parts are different, only the mating surfaces 4 are shown in the figure), and the cavities 41 of the fixed molds 2 and movable molds 3 are spliced ​​with each other by sliding the movable molds 3 and the fixed molds 2 in opposite directions. An injection molding head is provided inside the machine body 1 corresponding to the cavity 41, which is used to inject molten plastic into the spliced ​​cavity 41, and the cavity 41 is cooled and shaped after splicing to form a molded part with a preset appearance. In actual applications, the injection molding head is usually inserted into the movable mold 3, connected to the cavity 41, and the splicing injection molding head of the movable mold 3 injects into the spliced ​​cavity 41. A conveyor frame 6 is horizontally arranged on one side of the machine body 1, and a conveyor belt 61 is horizontally laid on the conveyor frame 6. For the convenience of display, only the part of the conveyor belt 61 close to the machine body 1 is shown in the figure. The conveyor belt 61 is used to transport the molded parts inside the machine body 1 to the rear.

[0031] Reference Figure 3 , a plurality of push rods 21 are arranged inside the fixed mold 2, and the push rods 21 are in the shape of strips. Due to the difference in the appearance and shape of the molded parts, the mating surface 4 of the fixed mold 2 includes a curved surface and a straight surface. The length directions of the plurality of push rods 21 correspond to each component surface of the mating surface 4 and are perpendicular to the corresponding component surface. Specifically, when the component surface of the mating surface 4 corresponding to the push rods 21 is a straight surface, the length direction of the push rods 21 is perpendicular to the straight component surface; when the component surface of the mating surface 4 corresponding to the push rods 21 is a curved surface, the length direction of the push rods 21 is perpendicular to the tangent direction of the curved component surface at the distribution position of the push rods 21; the fixed mold 2 is provided with a through groove connected to the surface of the cavity 41 in the length direction corresponding to the push rods 21, and the size of the through groove is the same as that of the push rods 21. The push rods 21 can slide along the through groove to the surface of the cavity 41, or protrude from the cavity 41 of the fixed mold 2, and extend to between the fixed mold 2 and the movable mold 3. Each push rod 21 is provided with an electric push rod 21 corresponding to each push rod 21 inside the fixed mold 2. The piston rod end of the electric push rod 21 is fixedly connected to the end of the push rod 21, driving the push rod 21 to slide along the groove; in this embodiment, a smooth plate 22 is formed at the end of the push rod 21 along the length direction perpendicular to the end rod, and the plate surface area of ​​the smooth plate 22 is larger than the end area of ​​the push rod 21; the plate surface of the smooth plate 22 is flush with the surface of the cavity 41 when the electric push rod 21 is not in operation, ensuring the integrity of the injection molding structure of the molded part inside the cavity 41. In this embodiment, the push rod 21 is used to push the cooled and shaped molded part in the cavity 41 after injection molding, and at each component surface of the cavity 41, the molded part is pushed out of the cavity 41 in a direction perpendicular to the component surface.

[0032] It should be noted that in actual applications, the push rod 21 can directly be an electric push rod 21 , so that the smooth plate 22 is directly fixed to the top of the piston rod of the electric push rod 21 .

[0033] Reference Figure 4 and Figure 5The mating surface 4 of the movable mold 3 is adapted to the mating surface 4 of the fixed mold 2, and the cavity 41 should be set on the mating surface 4 of the movable mold 3 and adapted to the cavity 41 of the fixed mold 2. The two vertical side edges of the mating surface 4 of the movable mold 3 are vertically opened with a pulling slide cavity 31, and the mating surface 4 on both sides of the pulling slide cavity 31 extends on the vertical surface adjacent to the mating surface 4. The top wall and the bottom wall of the pulling slide cavity 31 are kept horizontal, and a plurality of fixed rods 32 are vertically arranged between the top wall and the bottom wall of each pulling slide cavity 31, and the two ends of the plurality of fixed rods 32 are respectively fixedly connected to the bottom wall and the top wall of the pulling slide cavity 31; the plurality of fixed rods 32 inside each pulling slide cavity 31 are evenly distributed at equal intervals; the plurality of fixed rods 32 are vertically slidably connected with a pulling slide bar 33, and the pulling slide bar 33 is horizontally arranged, and the two ends extend to the mating surface 4 and the mold surface 4, the body of the pull slide 33 is bent so that the two ends of the pull slide 33 extending to the two adjacent surfaces are parallel to the plane where the extended part is located; a pull slide groove 34 is opened on a horizontal side wall of the pull slide 33 away from the movable mold 3 body, and the opening direction of the pull slide groove 34 is parallel to the length direction of the pull slide 33. A pull slider 35 is slidably connected in the pull slide groove 34, and the size and shape of the pull slider 35 are adapted to the pull slide groove 34. In actual application, the pull slide groove 34 usually selects a vertically arranged rod structure to adapt to the sliding of the curved part of the pull slide groove 34. ; A pulling slide bar 36 is hinged on the pulling slide bar 35, and the middle part of the body of the pulling slide bar 36 is tilted so that the two ends of the pulling slide bar 36 are parallel but distributed in two vertical planes, and the pulling slide bars 36 on both sides of the movable mold 3 are tilted toward each other; a plurality of negative pressure plates 37 are distributed on one end of the pulling slide bar 36 away from the hinged end of the pulling slide bar 35, and the plurality of negative pressure plates 37 are distributed at equal intervals along the width direction of the pulling slide bar 36. In actual application, the distribution direction of the negative pressure plates 37 can also be parallel to the width direction of the pulling slide bar 36; the negative pressure plates 37 are arranged on the opposite sides of the two pulling slide bars 36, and the pulling slide bars 3 An air pipe is provided on the rod body of 6 corresponding to the negative pressure plate 37, and the air pipe connects the negative pressure plate 37 with the suction member, and the suction member can be a more common air pump; rollers adapted to the pulling slide groove 34 are provided at both ends of the pulling slider 35, and the two rollers are clamped on the inner sides of the two opposite side walls of the working slide groove to prevent the pulling slide bar 36 from being separated from the pulling slide groove 34, so that the pulling slider 35 has the sliding effect of an electric slide; it should be noted that the rotation of the above-mentioned pulling slide bar 36 around the hinged part can be achieved by a micro motor. In actual application, an electrically controlled micro motor needs to be provided at the hinged part of the pulling slider 35 and the pulling slide bar 36.

[0034] Thus, the pulling slide bar 33 slides along the fixed rod 32 in the pulling slide cavity 31, and the molded part is adjusted to a suitable adsorption point height, and the pulling slide bar 36 is fixed at the corresponding position by bolt fixing or other fixing methods according to the actual structure; in the transfer molding process, when the movable mold 3 and the fixed mold 2 are closed, the pulling slide bar 36 is located on the two opposite vertical side walls of the closing surface 4, and when the mold is opened, the pulling slider 35 slides toward each other, and at the same time, the pulling slide bar 36 rotates around the hinge part, and the opposite sides of the pulling slide bar 36 abut against the large molded part, and the negative pressure plate 37 operates to adsorb the molded part, and the push rod 21 on the fixed mold 2 pushes the molded part while the pulling slide bar 36 pulls the molded part on the movable mold 3 side.

[0035] Reference Figure 1 and Figure 2 A material discharge cavity 5 is provided at the bottom of the machine body 1, including the part below the movable mold 3 and the fixed mold 2. The opening direction of the material discharge cavity 5 is horizontal and perpendicular to the opening and closing direction of the fixed mold 2 and the movable mold 3 in the horizontal plane; a material discharge block 51 is provided in the material discharge cavity 5, and a hydraulic driving component is vertically provided between the bottom end of the material discharge block 51 and the inner bottom wall of the machine body 1. The hydraulic driving component adopts a vertically arranged hydraulic cylinder, the cylinder body part is arranged at the bottom of the machine body 1, and the piston rod extends out of the inner bottom wall of the machine body 1 and is connected with the outer bottom wall of the material discharge block 51; driven by the hydraulic cylinder, the material discharge block 51 slides vertically; it should be noted that in this embodiment, the material discharge block 51 is arranged between the movable mold 3 and the fixed mold 2, and is close to one side of the movable mold 3 after the mold is closed, so that after the movable mold 3 is opened, the material discharge block 51 is located at the lower center part of the movable mold 3 and the fixed mold 2. A feeding trough 52 is provided on the top side of the feeding block 51 along its length direction, and the feeding trough 52 passes horizontally through both ends of the feeding block 51. A feeding rail 53 is slidably connected in the feeding trough 52, and rollers are rotatably connected on the two length side walls of the feeding rail 53. The wheel surfaces of the rollers abut against the inner walls of the feeding trough 52 on both sides. A micro motor for driving the roller to roll is provided on the inner wall of the feeding rail 53 for a roller in the middle part in the length direction, so as to drive the feeding rail 53 to slide along the feeding trough 52. A screw groove is provided on the top wall of the feed rail 53 along its length direction, and a screw is rotatably connected in the screw groove, and the axial direction of the screw is parallel to the length direction of the feed rail 53, that is, the sliding direction of the feed rail 53; two fixed sliders 54 are passed through and threaded on the screw inside the feed rail 53, and the size of the two fixed sliders 54 is primarily determined by the size of the screw groove on the feed rail 53. Limited by the screw groove, the two fixed sliders 54 are driven to slide synchronously through the rotation of the screw; an electric cylinder is vertically arranged on the slider, and the bottom end of the cylinder body of the electric cylinder is fixedly connected to the fixed slider 54, and the end of the piston rod of the electric cylinder is fixedly connected to a feed plate 55, which is horizontally arranged, and the center part of the bottom wall of the feed plate 55 is fixedly connected to the end of the piston rod.

[0036] In this embodiment, when the movable mold 3 and the fixed mold 2 are opened at the same time, the hydraulic cylinder operates to drive the unloading block 51 to rise, and the electric cylinder above the unloading block 51 drives the unloading plate 55 to lift. While the above-mentioned push rod 21 and the pulling slide bar 36 pull the molded part, the unloading plate 55 rises to abut the molded part, and the push rod 21 is retracted; the pulling slide bar 36 cancels the adsorption and retracts, and at the same time, the fixed slider 54 slides along the screw groove, and the main body of the screw groove, that is, the unloading rail 53 slides along the unloading groove 52 toward the conveying frame 6, and the molded part is quickly conveyed to the conveyor belt 61.

[0037] During a single unloading process, the unloading plate 55 needs to rise to a preset height to prevent the bottom end of the molded part from colliding with the conveying frame 6 during the sliding of the molded part driven by the unloading plate 55 .

[0038] Replay Figure 1 , a baffle plate 62 is vertically arranged on the part corresponding to the unloading rail 53 on the side edge of the conveying frame 6 facing away from the machine body 1, and the plate surface of the baffle plate 62 is perpendicular to the sliding direction of the unloading rail 53 and the unloading plate 55, and the plate surface of the baffle plate 62 is opposite to the unloading rail 53, so as to block the molded parts and prevent the molded parts from detaching from the conveyor belt 61 under the action of inertia; the conveying frame 6 is formed with a slide rail corresponding to the baffle plate 62, and the slide rail is horizontally arranged above the belt surface of the conveyor belt 61, and the length direction of the conveying rail is parallel to the length direction of the unloading plate 55. The conveying rail is arranged at the bottom end of the two side edges of the baffle plate 62, which is used for the baffle plate 62 to slide toward and away from the unloading plate 55; in actual application, the position of the baffle plate 62 can be manually adjusted by the technician before the transfer molding process, or the baffle plate 62 can be driven by a cylinder or a motor to slide flexibly along the conveying rail.

[0039] The implementation principle of an automated injection molding equipment used for the production of large injection molded parts in an embodiment of the present application is as follows: the fixed mold 2 and the movable mold 3 are closed to carry out the transfer molding process in the injection molding. After the injection molded part is cooled and formed, the push rod 21 extends out to push the molded part away from the bottom wall of the cavity 41 of the fixed mold 2 in a direction perpendicular to each component surface of the cavity 41.

[0040] At the same time, the two pulling sliders 35 slide toward each other along the pulling slide groove 34, and at the same time, the pulling slide rod 36 rotates around the hinge part, and the opposite sides of the pulling slide rod 36 abut against the molded part. The negative pressure plate 37 operates to adsorb the molded part. While the push rod 21 on the fixed mold 2 pushes the molded part, the pulling slide rod 36 pulls the molded part on the movable mold 3 side.

[0041] At the same time, the hydraulic cylinder drives the unloading block 51 to rise, and the electric cylinder above the unloading block 51 drives the unloading plate 55 to lift. While the above-mentioned push rod 21 and the pulling slide bar 36 pull the molded part, the unloading plate 55 rises to abut the molded part, and the push rod 21 is retracted; the pulling slide bar 36 cancels the adsorption and retracts it, and at the same time, the fixed slider 54 slides along the screw groove, and the main part of the screw groove, that is, the unloading rail 53 slides along the unloading groove 52 toward the conveying frame 6, and the molded part is quickly conveyed to the conveyor belt 61.

[0042] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An automated injection molding device for producing large injection molded parts, comprising a machine body (1), wherein a fixed mold (2) and a movable mold (3) are slidably arranged inside the machine body (1), and a mold cavity (41) is formed on the opposite sides of the fixed mold (2) and the movable mold (3), wherein: Also includes: A plurality of push rods (21) are provided corresponding to the multiple side mold surfaces (4) of the fixed mold (2), distributed on the bottom wall of the cavity (41) of the fixed mold (2), and slidably arranged inside the fixed mold (2), the plurality of push rods (21) are perpendicular to the tangent direction of the mold surfaces (4) where they are located, and a driving member is provided inside the fixed mold (2) corresponding to the push rods (21); Two pulling members are horizontally slidably arranged on the mold surface (4) of the movable mold (3) and two vertically adjacent surfaces of the mold surface (4), the sliding ends of the pulling members are hinged to the movable mold (3), and adsorption components are arranged on the opposite sides of the two pulling members for adsorbing the molded parts; A blanking piece is slidably connected to the inner bottom wall of the machine body (1) and is arranged below the movable mold (3) and the fixed mold (2). The blanking piece performs multi-directional sliding in horizontal and vertical planes.

2. The automated injection molding equipment for large injection molding production according to claim 1, characterized in that: A smooth plate (22) is formed on one end of the push rod (21) close to the movable mold (3), and a surface on one side of the smooth plate (22) is flush with the mold surface of the fixed mold (2).

3. The automated injection molding equipment for large injection molding production according to claim 1, characterized in that: The movable mold (3) has a mold surface (4) and two adjacent sides of the mold surface (4) horizontally provided with a pulling slide groove (34), and the pulling slide groove (34) connects the mold surface (4) to the two adjacent sides of the mold surface (4); In addition, the pulling member includes: The pulling slide rod (36) has one end hinged and slidably connected to the two pulling slide grooves (34), and the pulling slide rod (36) rotates horizontally around the hinged end. A plurality of negative pressure plates (37) are arranged on the opposite sides of the two pulling slide rods (36), and the negative pressure plates (37) are distributed at equal intervals along the length direction of the pulling slide rod (36); the main body of the pulling slide rod (36) is bent in a direction close to the opposite sides.

4. The automated injection molding equipment for large injection molding production according to claim 3, characterized in that: The pulling member also includes: A fixing rod (32) is vertically arranged at the intersection of the mold surface (4) of the movable mold (3) and two opposite vertical surfaces, and the fixing rods (32) on both sides of the movable mold (3) are symmetrically distributed; A pull slide bar (33) has one end extending to the mold surface (4) of the movable mold (3) and the other end extending to two vertically opposite surfaces, and the pull slide bar (33) is vertically slidably connected to the fixed rods (32) on both sides of the movable mold (3); The pulling slide groove (34) is arranged on the opposite sides of the two pulling slide strips (33).

5. The automated injection molding equipment for large injection molding production according to claim 1, characterized in that: The blanking parts include: A material removal block (51) is arranged on one side of the movable mold (3) and the fixed mold (2), and a material removal groove (52) is provided on the material removal block (51). The opening direction of the material removal groove (52) is perpendicular to the opening and closing direction of the fixed mold (2) and the movable mold (3), and the material removal blocks (51) are passed through the two ends of the material removal groove (52); A material discharge rail (53) is slidably connected to the material discharge chute (52), and a fixing piece is slidably connected to the material discharge rail (53) for fixing the formed piece.

6. The automated injection molding equipment for large injection molding production according to claim 5, characterized in that: The movable mold (3) and the fixed mold (2) are both provided with a material discharge cavity (5) at the bottom side of the mold cavity (41), and the material discharge cavity (5) is adapted to fit the material discharge block (51); A lifting component is provided on the inner bottom wall of the machine body (1) corresponding to the lower material block (51), and is used to drive the lower material block (51) to rise and fall.

7. The automated injection molding equipment for large injection molding production according to claim 5, characterized in that: The fixing member comprises: A fixed slider (54) slidably connected to the feed chute (52); An electric cylinder is vertically arranged on the top side of the fixed slider (54), and the piston rod of the electric cylinder is vertically upward; A blanking plate (55) is horizontally arranged at the end of the piston rod of the electric cylinder.

8. The automated injection molding equipment for large injection molding production according to claim 7, characterized in that: The blanking piece also includes: A conveyor belt (61) is horizontally arranged, with a conveying direction perpendicular to the sliding direction of the unloading plate (55), and one end of the conveyor belt extends below the unloading rail (53); The material blocking plate (62) is vertically arranged on the edge of one side of the conveyor belt (61) away from the material unloading block (51), and the plate surface is perpendicular to the sliding direction of the material unloading plate (55).

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