Automatic separating device for injection molded parts and sprue

Abstract

This invention relates to the field of injection molding post-processing technology, specifically to an automatic separation device for injection molded parts and sprue outlets. The device includes a cabinet, a plate fixedly mounted on the top of the cabinet, and injection molded part outlets and sprue outlets on the plate. A support component is fixedly mounted on the plate corresponding to the injection molded part outlets. A moving component is mounted on the plate corresponding to the injection molded part outlets and sprue outlets. A fixing component is mounted on the moving component. A magnetic interlock component is provided between the fixing component and the support component. A cutting component is mounted on the fixing component. A trimming component and a sprue clamping component are mounted on the cutting component. This application, through the coordinated operation of all components, automatically completes all processes in one go: positioning, clamping and fixing, cutting and separating, trimming the broken edges, clamping, transporting and discarding sprues, and collecting the finished product. This greatly improves separation efficiency and consistency, and effectively avoids product damage and quality instability problems that may occur with manual operation.

Description

Technical Field

[0001] This invention relates to the field of injection molding post-processing technology, specifically to an automatic separation device for injection molded parts and sprue gates. Background Technology

[0002] In the injection molding industry, especially in the production of mobile phone peripheral components such as lens decorative rings, brackets, and side buttons, precision injection molding is widely used. These parts are typically small in size, have intricate structures, and require strict dimensional tolerances. The sprue marks produced after injection molding are often correspondingly small and may be located in tricky, non-planar positions such as the sides or ends of the product. Currently, the sprue removal for these products often relies on manual removal, a process commonly known as "sprue trimming."

[0003] Currently, manual operation is slow and labor-intensive, making it difficult to meet the demands of modern mass production and high efficiency, while labor costs are increasing daily. Moreover, the force, angle, and position of manual cutting are difficult to control precisely, which can easily lead to uneven cuts, burrs, or chipping, and may even scratch the plastic surface, loosen or shift metal inserts, thus damaging the product and seriously affecting subsequent assembly accuracy and product yield.

[0004] Therefore, how to achieve high-quality and automated separation of these small, tricky-positioned sprues is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In order to overcome the shortcomings of existing technologies, such as low efficiency, poor accuracy, and easy damage to products caused by manual separation of sprue nozzles, this application provides an automatic separation device for injection molded parts and sprue nozzles.

[0006] The automatic separation device for injection molded parts and sprue gates provided in this application adopts the following technical solution: An automatic separation device for injection molded parts and sprue outlets includes a cabinet. A plate is fixedly installed on the top of the cabinet, and the plate has an injection molded part outlet and a sprue outlet. A support component is fixedly installed on the plate corresponding to the injection molded part outlet. A moving component is installed on the plate corresponding to the injection molded part outlet and the sprue outlet. A fixing component is installed on the moving component. A magnetic interlocking component is provided between the fixing component and the support component. A cutting component is installed on the fixing component. A trimming component and a sprue clamping component are installed on the cutting component.

[0007] By adopting the above technical solution, fully automated and integrated separation and post-processing of injection molded parts and sprue connectors are achieved. Through the coordinated operation of its components, the device automatically completes all processes in one go: positioning, clamping and fixing, cutting and separating, trimming the broken edges, gripping, transporting and discarding the sprue, and collecting the finished product. This greatly improves separation efficiency and consistency, and effectively avoids product damage and quality instability issues that may arise from manual operation.

[0008] Furthermore, the supporting component includes a supporting plate, which is fixedly installed on the flat plate to cover the position of the injection molded part's outlet. The supporting plate has a placement groove corresponding to the shape of the sprue. The supporting plate has a discharge channel corresponding to multiple parallel injection molded parts. A fixed shaft is fixedly connected inside the discharge channel. A movable supporting plate is rotatably connected to the fixed shaft corresponding to the injection molded part. A first elastic pad is fixedly attached to the top surface of the movable supporting plate corresponding to the injection molded part.

[0009] By adopting the above technical solution, the placement groove on the carrier plate achieves precise positioning of the sprue. The design of the movable carrier plate allows it to automatically flip downwards under gravity after the magnetic interlock is released, enabling the separated injection molded parts to smoothly slide into the discharge channel, achieving automatic unloading and collection of finished products. The structure is ingenious and reliable.

[0010] Furthermore, the movable component includes a slide rail, which is fixedly installed on the lower surface of the plate. A slider is slidably connected to the slide rail, and a connecting frame is fixedly connected to the slider. A movable frame is fixedly connected to one end of the connecting frame that passes through the sprue outlet, and the fixed component is installed on the movable frame. A mounting bracket is fixedly installed on the lower surface of the plate, and a first telescopic member is fixedly installed on the mounting bracket. The telescopic end of the first telescopic member is fixedly connected to the connecting frame.

[0011] By adopting the above technical solution, the sliding rail slider mechanism and the first telescopic component can drive the cutting, clamping and other functional units to move precisely and smoothly between the separation station (above the injection part outlet) and the discarding station (above the sprue outlet), realizing automatic switching of the station, making the device compact and highly automated.

[0012] Furthermore, the fixing assembly includes a first fixing plate, a guide shaft is fixedly installed on the movable frame corresponding to the first fixing plate, a guide sleeve is slidably connected to the guide shaft, the guide sleeve is fixedly installed on the first fixing plate, a connecting column is fixedly connected to the bottom surface of the first fixing plate, a second fixing plate is fixedly connected to the bottom surface of the connecting column, a second elastic pad is fixedly attached to the bottom surface of the second fixing plate corresponding to the first elastic pad, a second telescopic member is fixedly installed on the movable frame, and the telescopic end of the second telescopic member is fixedly connected to the top surface of the first fixing plate.

[0013] By adopting the above technical solution, the second telescopic component is used for driving, combined with the guiding effect of the guide shaft and guide sleeve, to drive the second fixed plate to press down stably, which can firmly press and fix the sprue onto the bearing plate, providing a stable foundation for subsequent cutting. At the same time, the second elastic pad cooperates with the first elastic pad to avoid damaging the product surface.

[0014] Furthermore, the magnetic interlocking assembly includes magnetic components, and the top surface of the second fixed plate is provided with a plurality of first mounting holes corresponding to the movable support plate. Magnetic components are fixedly installed inside each of the first mounting holes, and the movable support plate is made of magnetic material.

[0015] By adopting the above technical solution, during the downward pressing of the second fixed plate, a magnetic attraction force is automatically generated between the magnetic component and the movable support plate made of magnetic material, causing the movable support plate to swing upward, thereby stably clamping the injection molded part between the first and second elastic pads. This design requires no additional drive or complex mechanism, and naturally achieves synchronous interlocking of the injection molded part through the downward pressing action. It has a simple structure, rapid response, and gentle and controllable clamping force, effectively preventing the product from shifting or being damaged during cutting.

[0016] Furthermore, the cutting assembly includes a third telescopic member, which is fixedly mounted on the first fixed plate. A tool mounting plate is fixedly connected to the telescopic end of the third telescopic member. The tool mounting plate is located between the first fixed plate and the second fixed plate. Several sets of blades are fixedly mounted on the bottom surface of the tool mounting plate corresponding to the connection between the sprue and the injection molded part. A guide groove is provided on the second fixed plate corresponding to the blades. A beveled edge is provided at the bottom of the blade, and the beveled surface of the beveled edge faces the side of the sprue.

[0017] By adopting the above technical solution, the third telescopic component drives the blade to precisely cut downwards along the guide groove. The design of the beveled blade generates a lateral force on the sprue in its own direction at the moment of cutting, causing a slight deformation at the sprue connection, which is conducive to the separation of the cut and reduces the pulling on the injection molded part body, achieving a clean and neat cut and protecting the appearance and structural integrity of the injection molded part.

[0018] Furthermore, the trimming assembly includes a third elastic pad, and an installation cavity is provided on the side of the blade near the injection molded part. The third elastic pad is fixedly installed inside the installation cavity, and a trimming piece is fixedly attached to the outer side of the third elastic pad.

[0019] By adopting the above technical solution, the trimming disc is integrated into the blade, resulting in a compact structure. Utilizing the buffering performance of the third elastic pad, the trimming disc consistently maintains appropriate pressure against the fracture surface of the injection-molded part. During the blade's downward and upward strokes, the fracture surface can be trimmed twice, efficiently removing burrs and flash generated during cutting, improving the quality of the product's cut, and eliminating the need for a separate subsequent deburring process.

[0020] Furthermore, the sprue clamping assembly includes an elastic sleeve, a clearance hole is provided on the second fixing plate corresponding to the sprue, a second mounting hole is provided on the tool mounting plate corresponding to the sprue, the elastic sleeve is fixedly installed inside the second mounting hole, the inner diameter of the elastic sleeve is smaller than the outer diameter of the sprue, an abutment pad is fixedly installed on the bottom surface of the first fixing plate corresponding to the top surface of the sprue, and a push rod coaxially arranged with the elastic sleeve is installed on the abutment pad.

[0021] By adopting the above technical solution, while the blade is cutting downwards, the elastic sleeve automatically grips the sprue shank ...

[0022] Furthermore, a limiting pin is fixedly connected to the fixed shaft, and a rotating hole is opened on the movable bearing plate corresponding to the fixed shaft. A limiting groove is opened on the inner wall of the rotating hole corresponding to the limiting pin. The limiting groove limits the swing angle of the movable bearing plate through the limiting pin. The swing angle is α, which satisfies: 60°≥α≥30°.

[0023] By adopting the above technical solution, the swing angle of the movable bearing plate is limited to a reasonable range by utilizing the cooperation of the limiting pin and the limiting groove. This ensures that when swinging upward, there is a sufficient tilt angle to form an effective clamping surface with the second fixed plate, ensuring the stability and reliability of the magnetic interlock; it also ensures that when swinging downward, the tilt angle is sufficient so that the separated injection molded part can slide smoothly under the action of gravity, ensuring the reliability of automatic unloading.

[0024] Furthermore, inside the cabinet, corresponding to the injection molding part outlet and the sprue outlet, an injection molding part discharge hopper and a sprue outlet discharge hopper extending to their outer sides are respectively fixedly installed.

[0025] By adopting the above technical solution, the separated injection molded parts and sprues are automatically slid out and collected through corresponding inclined discharge hoppers, which facilitates connection with the next process or collection container. This realizes the automatic classification and transportation of the separated materials, making the entire separation process a complete closed loop, and further improving the automation level and efficiency of the operation.

[0026] Beneficial effects achieved: This application achieves full automation of the entire process from positioning, clamping, cutting, trimming to sprue removal and product collection through the coordinated operation of a support component, a moving component, a fixing component, a magnetic interlocking component, a cutting component, a trimming component, and a sprue clamping component. The magnetic interlocking significantly enhances the system rigidity during cutting, ensuring cut quality; the beveled blade design promotes sprue separation; the integrated trimming component immediately removes burrs after cutting; and the elastic sleeve clamping mechanism cleverly utilizes relative motion to grasp and release the sprue. The entire device has a compact structure and coordinated movements, making it particularly suitable for the automated precision cutting and post-processing of sprues for small precision injection molded parts, significantly improving production efficiency, product consistency, and yield, while reducing labor costs and labor intensity. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of one embodiment of this application.

[0028] Figure 2 This is a structural exploded view of one embodiment of this application.

[0029] Figure 3 This is a schematic diagram of the internal structure of one embodiment of this application.

[0030] Figure 4 This is an exploded view of the structure of the carrier component in one embodiment of this application.

[0031] Figure 5 This is an exploded view of the structure of a mobile component in one embodiment of this application.

[0032] Figure 6 This is an exploded view of the structure of the fixed component in one embodiment of this application.

[0033] Figure 7 This is an exploded view of the cutting component in one embodiment of this application.

[0034] Figure 8 This is an exploded view of the trimming component in one embodiment of this application.

[0035] Figure 9 yes Figure 3 Enlarged schematic diagram of Part I of the structure.

[0036] Explanation of reference numerals in the attached drawings: 100, cabinet; 101, flat plate; 102, injection molded part outlet; 103, sprue outlet; 104, injection molded part hopper; 105, sprue outlet hopper; 200, bearing assembly; 201, bearing plate; 202, placement groove; 203, material discharge channel; 204, fixed shaft; 205, movable bearing plate; 206, first elastic pad; 207, limit pin; 208, rotating hole; 209, limit groove; 300, moving assembly; 301, slide rail; 302, slider; 303, connecting frame; 304, moving frame; 305, mounting bracket; 306, first telescopic component; 400, fixed assembly; 401, first fixed plate; 402, guide... 403. Guide sleeve; 404. Connecting post; 405. Second fixing plate; 406. Second elastic pad; 407. Second telescopic component; 500. Magnetic interlock assembly; 501. Magnetic component; 502. First mounting hole; 600. Cutting assembly; 601. Third telescopic component; 602. Tool mounting plate; 603. Blade; 604. Guide groove; 605. Beveled cutting edge; 700. Trimming assembly; 701. Third elastic pad; 702. Mounting cavity; 703. Trimming piece; 800. Sprue clamping assembly; 801. Elastic sleeve; 802. Clearance hole; 803. Second mounting hole; 804. Abutment pad; 805. Push rod; 901. Sprue; 902. Injection molded part. Detailed Implementation

[0037] The following combination Figures 1-9 This application will be described in further detail.

[0038] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0040] This application discloses an automatic separation device for injection molded parts and sprue.

[0041] Please refer to the above as well. Figures 1 to 9 In one embodiment of this application, an automatic separation device for injection molded parts and sprues includes a cabinet 100, a plate 101, a load-bearing component 200, a moving component 300, a fixing component 400, a magnetic interlocking component 500, a cutting component 600, a trimming component 700, and a sprue clamping component 800.

[0042] The cabinet 100 is a frame structure assembled from profiles and sheet metal, serving as the supporting shell for the entire device. The cabinet 100 can house control boxes and other components. The flat plate 101 is a rectangular metal plate (such as steel plate), bolted to the top of the cabinet 100, serving as the main working platform. The flat plate 101 has parallel injection molding part outlets 102 and sprue outlets 103. Inside the cabinet 100, corresponding to these two outlets, injection molding part hoppers 104 and sprue outlet hoppers 105 are respectively bolted and obliquely fixed. Both are made of stainless steel, extending to the outside of the cabinet 100 to guide the separated materials.

[0043] The supporting component 200 is fixed on the plate 101, covering the injection molded part outlet 102, and is used to hold the connection between the injection molded part 902 and the sprue 901 to be processed. The moving component 300 is installed below the plate 101, and the fixing component 400 is installed on the moving component 300; the magnetic interlocking component 500 is disposed between the fixing component 400 and the supporting component 200; the cutting component 600 is installed on the fixing component 400; the trimming component 700 and the sprue clamping component 800 are installed on the cutting component 600. The moving component 300 can carry the fixing component 400, the magnetic interlocking component 500, the cutting component 600, the trimming component 700, and the sprue clamping component 800 as a whole between the injection molded part outlet 102 and the sprue outlet 103.

[0044] When the fixing component 400 is pressed down, it can fix the sprue 901. The magnetic interlocking component 500, in conjunction with the bearing component 200, can fix the injection molded part 902 when the fixing component 400 is pressed down. The cutting component 600 and the trimming component 700 are used to cut off the sprue 901 and trim the cut on the injection molded part 902. The sprue clamping component 800 is used to clamp and discard the sprue 901 after separation.

[0045] Please refer to the above as well. Figures 1 to 9In one specific embodiment of this application, the support assembly 200 includes a rectangular aluminum alloy support plate 201, which is fixedly mounted on the upper surface of the plate 101 by bolts and covers the injection molded part outlet 102. A placement groove 202 matching the shape of the sprue 901 to be processed is milled on the upper surface of the support plate 201. The support plate 201 also has multiple elongated discharge channels 203 aligned with the arrangement direction of the injection molded parts 902.

[0046] Please refer to the above as well. Figures 1 to 9 In one specific embodiment of this application, a steel fixed shaft 204 is fixedly installed in each material discharge channel 203 by an interference fit. A movable bearing plate 205 is rotatably connected to the fixed shaft 204. The movable bearing plate 205 is made of low carbon steel plate, and rotating holes 208 pass through both ends of the movable bearing plate 205. The movable bearing plate 205 is sleeved on the corresponding fixed shaft 204 through the rotating holes 208, thereby realizing small-angle swing.

[0047] Please refer to the above as well. Figures 1 to 9 In one specific embodiment of this application, the top surface of each movable support plate 205 is fixedly attached with a first elastic pad 206 made of silicone material by adhesive.

[0048] Please refer to the above as well. Figures 1 to 9 In one specific embodiment of this application, a limiting pin 207 is also fixedly inserted into the fixed shaft 204, and a limiting groove 209 is opened in the inner wall of the rotation hole 208 of the movable bearing plate 205 corresponding to the limiting pin 207. The limiting pin 207 is inserted into the limiting groove 209, thereby limiting the swing angle α of the movable bearing plate 205 to about 45°.

[0049] It is understood that in other specific embodiments of this application, the swing angle α can also be configured as: 60°≥α≥30°. When 60°≥α, the stability and reliability of the magnetic interlock assembly 500 can be ensured. When α≥30°, the injection molded part 902 can be reliably dropped after separation.

[0050] Please refer to the above as well. Figures 1 to 9In one specific embodiment of this application, the moving component 300 includes two parallel linear slide rails 301 fixed to the lower surface of the plate 101 with bolts. A slider 302 is slidably connected to each slide rail 301. The horizontal arm of an L-shaped steel connecting frame 303 is connected to the two sliders 302 by screws, and the vertical arm of the connecting frame 303 extends upward through the sprue outlet 103. A portal-shaped moving frame 304 is fixedly connected to the upper end of the vertical arm of the connecting frame 303 by screws, and a fixing component 400 is mounted on the moving frame 304. Two mounting brackets 305 are also fixedly fixed to the lower surface of the plate 101, arranged side-by-side on both sides of the injection molding outlet 102. Each mounting bracket 305 is fixedly connected to a first telescopic member 306, the telescopic end of which is fixedly connected to the connecting frame 303. Through the extension and retraction of the first telescopic member 306, the connecting frame 303, the moving frame 304, and the components mounted thereon can be driven to move precisely along the slide rails 301.

[0051] Please refer to the above as well. Figures 1 to 9 In one specific embodiment of this application, the fixing assembly 400 includes a rectangular first fixing plate 401. Two symmetrically arranged guide shafts 402 are vertically fixed on both sides of the movable frame 304 by screws and brackets. Guide sleeves 403 are respectively fitted on the guide shafts 402, and these guide sleeves 403 are fixed to corresponding positions at both ends of the first fixing plate 401 by screws. Four connecting posts 404 are vertically fixed to the bottom surface of the first fixing plate 401 on both sides of the guide shafts 402 by screws. The bottom ends of the four connecting posts 404 are jointly fixed to a rectangular second fixing plate 405. On the bottom surface of the second fixing plate 405, a silicone second elastic pad 406 corresponding to the position of the first elastic pad 206 is glued. In the middle of the movable frame 304, a second telescopic member 407 is vertically fixed by screws, and the telescopic end of the second telescopic member 407 is fixedly connected to the center of the top surface of the first fixing plate 401 by threads. The second telescopic component 407 drives the first fixed plate 401, the connecting column 404 and the second fixed plate 405 to move up and down along the guide shaft 402.

[0052] Please refer to the above as well. Figures 1 to 9 In one specific embodiment of this application, the magnetic interlocking assembly 500 includes a plurality of cylindrical permanent magnets as magnetic components 501. On the top surface of the second fixed plate 405, corresponding to the position of each movable support plate 205, a row of countersunk first mounting holes 502 are formed, and a permanent magnet is fixed in each first mounting hole 502 by interference fit or adhesive bonding. The movable support plate 205 is made of a magnetic material, such as the low-carbon steel described above.

[0053] When the second fixed plate 405 is pressed down, these permanent magnets generate magnetic force with the low-carbon steel movable support plate 205 below, attracting the movable support plate 205 to swing upward, thereby fixing and locking the injection molded part 902 between the first elastic pad 206 and the second elastic pad 406.

[0054] It is understood that in other embodiments of this application, the magnetic element 501 may also be configured as an electromagnet.

[0055] It is understood that in other specific embodiments of this application, the magnetic component 501 may be fixedly mounted on the movable support plate 205, and the second fixing plate 405 may be made of magnetic material.

[0056] It is understood that in other specific embodiments of this application, magnetic components 501 may also be installed on both the movable support plate 205 and the second fixed plate 405.

[0057] Please refer to the above as well. Figures 1 to 9 In one specific embodiment of this application, the cutting assembly 600 includes two symmetrically arranged third telescopic members 601, which are vertically fixed to the top surface of the first fixing plate 401 by screws. The telescopic ends of the third telescopic members 601 pass downward through the first fixing plate 401 and are connected to a rectangular tool mounting plate 602 by screws. The tool mounting plate 602 is located parallel between the first fixing plate 401 and the second fixing plate 405. On the bottom surface of the tool mounting plate 602, multiple sets of carbide blades 603 are fixedly mounted by screws, and the position of each set of blades 603 precisely corresponds to the connection point between a sprue 901 and the injection molded part 902. On the second fixing plate 405, a long strip-shaped guide groove 604 is provided corresponding to the position of each blade 603, through which the blade 603 passes. The bottom edge of each blade 603 is ground with a beveled edge 605, the bevel of which faces the side where the sprue 901 is located.

[0058] Please refer to the above as well. Figures 1 to 9 In one specific embodiment of this application, the trimming assembly 700 includes several third elastic pads 701 made of highly elastic foam. Each blade 603 has a rectangular groove on its side closest to the injection-molded part 902, serving as a mounting cavity 702. The third elastic pads 701 are fixedly installed in the mounting cavities 702 by adhesive. A piece of fine-grit sandpaper, serving as a trimming piece 703, is adhesively attached to the outer surface of the third elastic pads 701.

[0059] Please refer to the above as well. Figures 1 to 9In one specific embodiment of this application, the sprue clamping assembly 800 includes a tubular elastic sleeve 801 made of rubber material. A circular clearance hole 802 is provided on the second fixing plate 405 corresponding to the position of the vertical sprue handle of the sprue 901. A circular second mounting hole 803 is also provided on the tool mounting plate 602 corresponding to the position of the clearance hole 802. The elastic sleeve 801 is fixed in the second mounting hole 803 by screws, and its inner diameter in its natural state is slightly smaller than the outer diameter of the vertical sprue handle of the sprue 901. On the bottom surface of the first fixing plate 401, corresponding to the top of the sprue 901, a cylindrical rubber abutment pad 804 is glued on. A push rod 805, coaxially arranged with the elastic sleeve 801, is mounted on the abutment pad 804, and the outer diameter of the push rod 805 is smaller than the inner diameter of the elastic sleeve 801.

[0060] Please refer to the above as well. Figures 1 to 9 In one specific embodiment of this application, the first telescopic member 306, the second telescopic member 407, and the third telescopic member 601 are all configured as cylinders.

[0061] It is understood that in other specific embodiments of this application, the first telescopic member 306, the second telescopic member 407, and the third telescopic member 601 may also be configured as a hydraulic cylinder, an electric telescopic rod, or other device or mechanism capable of forming linear reciprocating motion.

[0062] The implementation principle of the automatic separation device for injection molded parts and sprue gates in this application embodiment is as follows: Material loading: Place the injection molded part 902 with the sprue 901 on the support assembly 200, with the sprue 901 placed in the placement groove 202, and the injection molded part 902 placed above the first elastic pad 206 of the movable support plate 205.

[0063] Movement and positioning: The first telescopic component 306 moves, and the fixed component 400, cutting component 600, etc. are moved above the injection molded part 902 (separation station) through the moving component 300.

[0064] Pressing down and fixing: The second telescopic component 407 drives the first fixing plate 401 and the second fixing plate 405 to press down as a whole, thereby pressing and fixing the sprue 901 between the bearing plate 201 and the second fixing plate 405. At the same time, the magnetic component 501 firmly attracts the movable bearing plate 205 to achieve magnetic interlocking, thereby pressing and fixing the injection molded part 902 between the first elastic pad 206 and the second elastic pad 406.

[0065] Cutting and Separation: The third telescopic component 601 drives the tool mounting plate 602 and the blade 603 to quickly descend. The blade 603 moves along the guide groove 604, and its beveled edge 605 accurately cuts off the connection point between the sprue 901 and the injection molded part 902. At the moment of cutting, the lateral force generated by the beveled edge 605 causes the sprue 901 to deform slightly away from the injection molded part 902.

[0066] Trimming: As the third telescopic component 601 drives the tool mounting plate 602 and the blade 603 to rapidly descend, the trimming plate 703, cushioned by the third elastic pad 701, adheres tightly to the cut edge of the injection molded part 902 for the first trimming. Subsequently, the second telescopic component 407 drives the first fixing plate 401, the second fixing plate 405, and the blade 603 to rise as a whole, and the trimming plate 703 performs a second trimming of the cut edge. Through these two trimming processes, burrs can be effectively removed.

[0067] Sprue clamping: As the third telescopic component 601 drives the tool mounting plate 602 and the blade 603 to rapidly descend, the elastic sleeve 801 fixed on the tool mounting plate 602 will clamp onto the vertical shank of the sprue 901. Since the inner diameter of the elastic sleeve 801 is smaller than the diameter of the vertical shank of the sprue 901, its inner wall tightly clamps the vertical shank of the sprue 901. As the second telescopic component 407 retracts, it drives the second fixing plate 405 and others to rise and reset, and the sprue 901, together with the tool mounting plate 602 and the blade 603, will rise simultaneously, thus completing the sprue clamping.

[0068] Sprue Disposal: The first telescopic component 306 actuates, moving the moving assembly 300 and all its components above it to above the sprue outlet 103 (disposal station). Then, the third telescopic component 601 drives the tool mounting plate 602 and the blade 603 to retract, and the top of the vertical sprue 901 abuts against the lower end of the push rod 805 on the abutment pad 804. The push rod 805 forces the vertical sprue 901 to move out of the elastic sleeve 801, thereby releasing the sprue 901. Under the action of gravity, the sprue 901 slides out through the sprue outlet hopper 105 and is collected.

[0069] Injection molded part collection: When the second telescopic component 407 retracts, it drives the second fixed plate 405 to rise and reset. The second fixed plate 405 drives the magnetic component 501 installed on it away from the movable support plate 205, and the magnetic force unlocks. The movable support plate 205 flips downward under the action of gravity. The injection molded part 902 left on the movable support plate 205 after being separated slides down into the discharge channel 203 under the action of gravity, and finally slides out through the injection molded part discharge hopper 104 and is collected.

[0070] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automatic separation device for injection molded parts and sprue gates, characterized in that: The system includes a cabinet (100), on which a plate (101) is fixedly installed. The plate (101) has an injection molding part outlet (102) and a sprue outlet (103). A bearing component (200) is fixedly installed on the plate (101) corresponding to the injection molding part outlet (102). A moving component (300) is installed on the plate (101) corresponding to the injection molding part outlet (102) and the sprue outlet (103). A fixing component (400) is installed on the moving component (300). A magnetic interlocking component (500) is provided between the fixing component (400) and the bearing component (200). A cutting component (600) is installed on the fixing component (400). A trimming component (700) and a sprue clamping component (800) are installed on the cutting component (600).

2. The automatic separation device for injection molded parts and sprue gates according to claim 1, characterized in that: The support assembly (200) includes a support plate (201), which is fixedly installed on the plate (101) at the position covering the injection molded part outlet (102). The support plate (201) has a placement groove (202) corresponding to the shape of the sprue (901). The support plate (201) has a discharge channel (203) corresponding to multiple parallel injection molded parts (902). A fixed shaft (204) is fixedly connected inside the discharge channel (203). A movable support plate (205) is rotatably connected to the fixed shaft (204) corresponding to the injection molded part (902). A first elastic pad (206) is fixedly attached to the top surface of the movable support plate (205) corresponding to the injection molded part (902).

3. The automatic separation device for injection molded parts and sprue gates according to claim 2, characterized in that: The moving component (300) includes a slide rail (301), which is fixedly installed on the lower surface of the plate (101). A slider (302) is slidably connected to the slide rail (301), and a connecting frame (303) is fixedly connected to the slider (302). A moving frame (304) is fixedly connected to one end of the connecting frame (303) that passes through the water outlet (103). The fixing component (400) is installed on the moving frame (304). A mounting bracket (305) is fixedly installed on the lower surface of the plate (101), and a first telescopic member (306) is fixedly installed on the mounting bracket (305). The telescopic end of the first telescopic member (306) is fixedly connected to the connecting frame (303).

4. The automatic separation device for injection molded parts and sprue gates according to claim 3, characterized in that: The fixing assembly (400) includes a first fixing plate (401), a guide shaft (402) is fixedly installed on the movable frame (304) corresponding to the first fixing plate (401), a guide sleeve (403) is slidably connected on the guide shaft (402), the guide sleeve (403) is fixedly installed on the first fixing plate (401), a connecting column (404) is fixedly connected to the bottom surface of the first fixing plate (401), a second fixing plate (405) is fixedly connected to the bottom surface of the connecting column (404), a second elastic pad (406) is fixedly attached to the bottom surface of the second fixing plate (405) corresponding to the first elastic pad (206), a second telescopic member (407) is fixedly installed on the movable frame (304), and the telescopic end of the second telescopic member (407) is fixedly connected to the top surface of the first fixing plate (401).

5. The automatic separation device for injection molded parts and sprue gates according to claim 4, characterized in that: The magnetic interlock assembly (500) includes a magnetic component (501). The top surface of the second fixed plate (405) is provided with a plurality of first mounting holes (502) corresponding to the movable support plate (205). The magnetic component (501) is fixedly installed inside each of the first mounting holes (502). The movable support plate (205) is made of magnetic material.

6. The automatic separation device for injection molded parts and sprue gates according to claim 4, characterized in that: The cutting assembly (600) includes a third telescopic member (601), which is fixedly installed on the first fixed plate (401). The telescopic end of the third telescopic member (601) is fixedly connected to a tool mounting plate (602). The tool mounting plate (602) is located between the first fixed plate (401) and the second fixed plate (405). Several sets of blades (603) are fixedly installed on the bottom surface of the tool mounting plate (602) at the connection between the sprue (901) and the injection molded part (902). A guide groove (604) is provided on the second fixed plate (405) corresponding to the blade (603). A beveled edge (605) is provided at the bottom of the blade (603), and the beveled surface of the beveled edge (605) faces the sprue (901).

7. The automatic separation device for injection molded parts and sprue gates according to claim 6, characterized in that: The trimming assembly (700) includes a third elastic pad (701). The blade (603) has an installation cavity (702) on the side near the injection molded part (902). The third elastic pad (701) is fixedly installed inside the installation cavity (702). A trimming piece (703) is fixedly attached to the outer side of the third elastic pad (701).

8. The automatic separation device for injection molded parts and sprue gates according to claim 6, characterized in that: The sprue clamping assembly (800) includes an elastic sleeve (801), a clearance hole (802) is provided on the second fixing plate (405) corresponding to the sprue (901), and a second mounting hole (803) is provided on the tool mounting plate (602) corresponding to the sprue (901). The elastic sleeve (801) is fixedly installed inside the second mounting hole (803). The inner diameter of the elastic sleeve (801) is smaller than the outer diameter of the sprue (901). An abutment pad (804) is fixedly installed on the bottom surface of the first fixing plate (401) corresponding to the top surface of the sprue (901). A push rod (805) coaxially arranged with the elastic sleeve (801) is installed on the abutment pad (804).

9. The automatic separation device for injection molded parts and sprue gates according to claim 2, characterized in that: A limiting pin (207) is fixedly connected to the fixed shaft (204). A rotating hole (208) is provided on the movable bearing plate (205) corresponding to the fixed shaft (204). A limiting groove (209) is provided on the inner wall of the rotating hole (208) corresponding to the limiting pin (207). The limiting groove (209) limits the swing angle of the movable bearing plate (205) through the limiting pin (207). The swing angle is α, which satisfies: 60°≥α≥30°.

10. An automatic separation device for injection molded parts and sprue gates according to any one of claims 1-9, characterized in that: Inside the cabinet (100), corresponding to the injection molded part outlet (102) and the sprue outlet (103), an injection molded part outlet hopper (104) and a sprue outlet hopper (105) extending to the outside are respectively fixedly installed.

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