A blanking mechanism based on bending stamping product

Abstract

The application relates to a blanking mechanism based on a bent stamping product, which comprises a guide sleeve arranged at a discharging position of a stamping die, a first annular accommodating groove is arranged on the outer circumferential side of the guide sleeve and is continuous in the circumferential direction, the cross section of the first annular accommodating groove is matched with the shape of a bent structure, and the first annular accommodating groove is used for embedding and limiting the bent structure; a second annular accommodating groove is further arranged on the outer circumferential side of the guide sleeve and is arranged at a circumferential position corresponding to a flat part, the cross section of the second annular accommodating groove is matched with the shape of the flat part, the second annular accommodating groove is used for being in contact with the flat part to form radial constraint and circumferential anti-rotation constraint on the bent product, and a conveying assembly is arranged to drive the bent product to move in the discharging direction. The blanking mechanism effectively solves the posture change and position deviation problems of the bent product caused by insufficient constraint in the existing blanking process, and realizes stable guiding and accurate conveying of the bent product.

Description

Technical Field

[0001] This utility model relates to a feeding mechanism, and more particularly to a feeding mechanism for bending and stamping products. Background Technology

[0002] Metal sheets often need to be bent into three-dimensional products during the stamping process. To achieve automated production lines, it is usually required to receive the formed parts in a timely and reliable manner at the discharge position of the stamping die and guide them stably to downstream processes (such as inspection, sorting, stacking, or secondary processing).

[0003] Existing feeding mechanisms mostly adopt structures such as inclined chute / slide, flat belt conveyor, air blowing assistance, guide guard plate or simple cylindrical guide sleeve, which mainly rely on gravity and a single guide surface to achieve receiving and conveying.

[0004] For products with three-dimensional bending, such structures often only provide local point / line contact constraints, which are difficult to match with the geometry of the bending structure and planar parts, resulting in insufficient continuous anti-rotation constraints along the circumference. When the bent body and the guide inner wall enter the guide area or transition area, they are prone to collision and rebound, and posture changes, which can induce radial drift, circumferential rotation and misalignment. Even with the addition of local stops, brush rollers or changes in guide angle, problems such as increased wear, poor adaptability to different bent parts, and limited suppression effect under high-cycle conditions still exist. Therefore, there is an urgent need to propose a blanking mechanism for bent stamping products to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a feeding mechanism that can match the geometric features of bent products and maintain stable posture at high speeds.

[0006] The technical solution adopted by this utility model to solve the above problems is: a feeding mechanism for bending and stamping products, used to receive and transport the bent products after being stamped by a die, the bent products including a bending structure protruding along the thickness direction and a flat part connected to the bending structure, including: A guide sleeve installed at the material outlet of the stamping die; The outer periphery of the guide sleeve is provided with a first annular receiving groove that is continuous in the circumferential direction. The cross section of the first annular receiving groove matches the shape of the bending structure and is used to embed and limit the bending structure when the bent product enters the guide sleeve. The outer periphery of the guide sleeve has a second annular receiving groove that is continuous in the circumferential direction at a position corresponding to the planar part. The cross section of the second annular receiving groove matches the shape of the planar part so that it contacts and engages with the planar part during the process of the bent product passing through the guide sleeve, thereby forming radial constraint and circumferential anti-rotation constraint on the bent product, thus suppressing the posture change and positional deviation of the bent product during the feeding process. A conveying assembly, located downstream of the guide sleeve, is used to drive the bent product to move along the discharge direction.

[0007] Preferably, the guide sleeve is a circular sleeve that extends through the material discharge direction.

[0008] Preferably, there are two second annular receiving grooves, which are symmetrically arranged on both sides of the first annular receiving groove in the axial direction and are coaxial with the first annular receiving groove.

[0009] Preferably, a magnetic element is provided in the second annular receiving groove, the working surface of the magnetic element being opposite to the planar portion, for adsorption and positioning of the bent product during its passage.

[0010] Preferably, a second annular receiving groove is provided on both sides of the first annular receiving groove, and the magnetic element is provided in each of the two second annular receiving grooves, so that the magnetic element exists on both sides of the bent structure.

[0011] Preferably, the working surface of the magnetic component is substantially flush with the opening edge of the second annular receiving groove in the radial direction, so as to contact and cooperate with the planar portion during the bending of the product through the guide sleeve.

[0012] Preferably, when the bent product passes through the guide sleeve, the flat portion is located within the radial action area of ​​the magnetic component on both sides of the first annular receiving groove.

[0013] Beneficial effects of the embodiments of this utility model By employing a first annular receiving groove on the outer periphery of the guide sleeve that matches the bending structure of the bent product, the bending structure is embedded and limited. Simultaneously, a second annular receiving groove is provided at a circumferential position corresponding to the planar part of the bent product, so as to contact and cooperate with the planar part to form radial constraint and circumferential anti-rotation constraint on the product. In conjunction with the conveying component located downstream of the guide sleeve, the technical problems of posture change, radial offset and circumferential rotation of bent products caused by insufficient constraint structure during the blanking process in the prior art are effectively solved. This enables stable guidance and precise conveying of bent products under high-cycle stamping conditions, improving the posture stability and automated operation reliability of the blanking process. Attached Figure Description

[0014] Figure 1 This diagram shows a view of the bent product passing through the guide sleeve in one embodiment of the present invention.

[0015] Figure 2 The image shows a side view of a bent product passing through a guide sleeve in one embodiment of the present invention.

[0016] Figure 3 This diagram illustrates a schematic structural diagram of the feeding mechanism and the stamping die in operation according to one embodiment of the present invention.

[0017] Figure 4 A schematic side view of the bent product is shown.

[0018] Figure 5 A schematic top view of the bent product is shown.

[0019] Among them: 10, bending product; 110, bending structure; 120, flat part; 20, guide sleeve; 210, first annular receiving groove; 220, second annular receiving groove; 30, magnetic component; 40, stamping die. Detailed Implementation

[0020] The specific embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but are not intended to limit the scope of this application.

[0021] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application 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 limiting the scope of protection of this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 will understand the specific meaning of the above terms in this application based on the specific circumstances.

[0023] See Figures 1 to 5A preferred embodiment of this application provides a blanking mechanism for a bent stamping product, used to receive and convey a bent product 10 formed by a die stamping. This blanking mechanism is particularly suitable for irregularly shaped stamped parts whose product shape includes a bent structure 110 protruding along the thickness direction and a flat portion 120 connected to the bent structure 110. Specifically, the bent product 10 includes a bent structure 110 protruding along the thickness direction and a flat portion 120 connected to the bent structure 110. The blanking mechanism includes a guide sleeve 20 disposed at the discharge position of the stamping die 40 and a conveying assembly (not shown in the figure). The guide sleeve 20 has a first annular receiving groove 210 continuously arranged in the circumferential direction on its outer periphery. The cross-section of the first annular receiving groove 210 matches the shape of the bent structure 110, used to embed and limit the bent structure 110 when the bent product 10 enters the guide sleeve 20; the guide sleeve 20... A second annular receiving groove 220 is provided on the outer periphery of the sleeve 20 at a circumferential position corresponding to the planar part 120. The cross-section of the second annular receiving groove 220 matches the shape of the planar part 120 so that it contacts and engages with the planar part 120 during the process of the bent product 10 passing through the guide sleeve 20, forming radial constraint and circumferential anti-rotation constraint on the bent product 10, thereby suppressing the posture change and positional deviation of the bent product 10 during the feeding process. The conveying component is located downstream of the guide sleeve 20 and is used to drive the bent product 10 to move along the discharge direction.

[0024] Specifically: The guide sleeve 20 is installed below the discharge position of the stamping die 40, along the discharge direction of the bent product 10, and is used to receive and guide the product that comes out of the die. The guide sleeve 20 is preferably a cylindrical or near-cylindrical structure that runs through the axial direction, and its internal cavity allows the product to slide smoothly through, providing good guidance and installation compatibility.

[0025] To accommodate the combined convex and planar features of the bent product 10, two independent annular structures are provided on the outer periphery of the guide sleeve 20. First, a first annular receiving groove 210 is provided on the outer periphery of the guide sleeve 20. This groove is continuously formed circumferentially, and its cross-sectional shape is set according to the outer contour of the bent structure 110 to form a shape fit, thereby achieving embedded limiting when the product initially enters the guide sleeve 20. This structure helps to suppress wobbling, skewing, or radial interference of the bent structure 110 when it is introduced into the guide channel.

[0026] Furthermore, a second annular receiving groove 220 is provided on the outer periphery of the guide sleeve 20 at a position corresponding to the planar portion 120 of the product. The second annular receiving groove 220 is also continuously formed circumferentially, and its cross-sectional shape is set according to the geometric characteristics of the planar portion 120, so that when the bent product 10 passes through the guide sleeve 20, the planar portion 120 can make partial surface contact or limit engagement with the groove. This engagement not only provides radial support force but also forms circumferential positioning constraints, thereby effectively preventing the product from spinning or deflecting during transport.

[0027] The conveying assembly is located at the downstream end of the guide sleeve 20 and can use structures such as belts, slides, rollers, cylinders, and suction cups to achieve axial drive or continuous feeding of the bent product 10. The discharge direction of the conveying assembly is consistent with the axis of the guide sleeve 20 to ensure stable transmission to the subsequent process.

[0028] During the stamping process, after the die completes the forming of the bent product 10, the product is released through the ejection mechanism inside the die or by gravity. After demolding, the product naturally falls to the upper inlet of the guide sleeve 20. The bending structure 110 first enters the first annular receiving groove 210 and completes the embedded positioning. Then, the flat part 120 continues to slide down and enters the second annular receiving groove 220 to achieve a limiting fit. The entire feeding process utilizes the continuous circumferential contact structure of the guide sleeve 20 to avoid the jamming and rotational instability problems that are easily generated in traditional point contact guides.

[0029] After the product fully enters the guide sleeve 20 channel and completes two-stage limit switches, the downstream conveying components drive the product to move along the axis of the guide sleeve 20, achieving fixed-position delivery. The entire process requires no manual intervention and is suitable for high-speed, automated operation scenarios.

[0030] This feeding mechanism is suitable for most stamping parts with moderate sheet thickness, medium bending height, and high stability of the flat surface (120°). It is especially suitable for production lines with continuous stamping, in-mold transfer, or online inspection requirements. The guide sleeve 20 can be made of high-strength plastic, aluminum alloy, or coated steel, possessing wear-resistant and impact-resistant properties. The equipment installation must ensure that the discharge direction is unobstructed, and the central axis of the guide sleeve 20 is aligned with the mold demolding direction.

[0031] In other embodiments, the first and second annular receiving grooves 220 can be configured as detachable structures to accommodate bent products 10 of different sizes and shapes. The guide sleeve 20 body can also adopt a modular design to enable quick replacement between different product families. Furthermore, the guide sleeve 20 can be equipped with sensors or camera holes for detecting the product's passage status. The conveying assembly can also be adjusted to a stepping, linkage, or servo-controlled type according to the process cycle.

[0032] In this embodiment, a first annular receiving groove 210 matching the bending structure 110 of the bent product 10 is provided on the outer periphery of the guide sleeve 20 to embed and limit the bending structure 110. Simultaneously, a second annular receiving groove 220 is provided at a circumferential position corresponding to the planar portion 120 of the bent product 10, contacting and engaging with the planar portion 120 to form radial and circumferential anti-rotation constraints on the product, and cooperating with a conveying assembly located downstream of the guide sleeve 20. Therefore, this effectively solves the technical problems of posture changes, radial offset, and circumferential rotation of the bent product 10 during the unloading process caused by insufficient constraint structure in the prior art. This achieves stable guidance and precise conveying of the bent product 10 under high-cycle stamping conditions, improving the posture stability and automated operation reliability during the unloading process. Furthermore, the guide sleeve 20 is a circular sleeve that extends through the material discharge direction.

[0033] Specifically: The guide sleeve 20 is a circular sleeve that runs through the material discharge direction. It has a hollow cylindrical structure, with its axis aligned with the discharge direction of the stamping die 40, and through holes at both ends of the cylinder. The guide sleeve 20 can be manufactured as a single piece or assembled in sections to form a through channel. Its internal cavity dimensions are designed with a slight margin based on the maximum outer contour of the bent product 10 to ensure that the product passes through without interference.

[0034] The through-hole characteristic of the circular sleeve allows the bent product 10 to be directly guided into the cylinder by gravity after demolding, forming a continuous sliding path inside the cylinder and avoiding jamming during intermediate stops or posture changes. The circular cross-section provides uniform structural support in all directions and facilitates a circumferentially symmetrical layout with the first annular receiving groove 210 and the second annular receiving groove 220, enhancing the structural stability of limiting and guiding.

[0035] The circular sleeve body can be made of materials such as aluminum alloy, nylon-reinforced engineering plastics, and stainless steel to meet the needs of wear resistance, impact resistance, and lightweighting under different working conditions. Its installation methods include snap-fit, screw fixing, or plug-and-play quick-change, and it can be matched with the mold body or frame structure via flanges, locating keys, or guide pins to ensure the stability of the cylinder axis and the verticality of the end face after installation, preventing product skewing or impacts during transit.

[0036] The upper end of the guide sleeve 20, corresponding to the mold outlet, is the inlet, and the end closer to the downstream conveying component is the outlet. The entire sleeve is continuous without any breaks, allowing the bent product 10 to slide directly to the outlet after falling, achieving seamless connection with the conveying device, simplifying the transmission path and reducing reliance on downstream synchronous control. To accommodate different bending amplitudes and center of gravity shifts in different products, auxiliary guide rails or receiving mechanisms can be installed at the bottom of the guide sleeve 20 to absorb impact energy during sliding.

[0037] In this embodiment, a circular sleeve running through the discharge direction is used as the guide sleeve 20, allowing the bent product 10 to slide smoothly into the mold and slide out along the through channel after demolding. At the same time, this structure provides a stable circumferential support interface, which facilitates its cooperation with the circumferentially set limiting groove structure. Therefore, it effectively solves the problems of jamming, attitude drift and poor material feeding caused by discontinuous guide channel cross-section or uneven contact interface in the prior art. This achieves high stability, high versatility and automatic docking capability of the bent product 10 in high-frequency stamping operations, and significantly improves the operating efficiency and adaptability of the feeding mechanism.

[0038] In some embodiments, there are two second annular receiving grooves 220, which are symmetrically arranged on both sides of the first annular receiving groove 210 and coaxial with the first annular receiving groove 210.

[0039] Specifically: Two second annular receiving grooves 220 are provided on the outer periphery of the guide sleeve 20. The two second annular receiving grooves 220 are respectively arranged on both sides of the first annular receiving groove 210 and are coaxially arranged with the first annular receiving groove 210, so that the three annular structures are arranged axially symmetrically around the same axis.

[0040] The two second annular receiving grooves 220 in this structure are used to form a stable circumferential and radial limiting fit with the flat portion 120 of the bent product 10. In terms of structural arrangement, the spacing between the two second annular receiving grooves 220 can be adjusted according to the length of the flat portion 120 of the product. Their openings face the inner cavity of the guide sleeve 20, so that as the product passes through the guide sleeve 20, its flat portion 120 enters the constraint area of ​​each of the two second annular receiving grooves 220. The symmetrical arrangement ensures that equivalent guiding and limiting forces are applied simultaneously on both sides of the product, thereby effectively avoiding product skewing or instability caused by unilateral restriction.

[0041] The guide sleeve 20 retains its hollow cylindrical shape, with an inner diameter slightly larger than the maximum external diameter of the bent product 10, ensuring smooth entry and passage of the product. The two second annular receiving grooves 220 can be formed using stepped opening, shallow groove processing, or independent groove assembly. The groove depth and width are set according to the thickness and width of the flat portion 120 of the adapted product, typically with a small gap reserved to facilitate sliding and prevent jamming. To enhance installation accuracy and modular adjustment capabilities, the two second annular receiving grooves 220 can also be designed as replaceable fittings or inserts.

[0042] This symmetrical arrangement achieves mechanical balance in the structure, which helps to improve the repeatability of positioning in the high-frequency feeding process. It is especially suitable for bending products 10 with asymmetrical center of gravity or easy posture imbalance, and has significant advantages for the stable transition of products in high-acceleration demolding, high-speed sliding and transfer interfaces.

[0043] The guide sleeve 20 is designed for installation in the unloading station below the mold. It can be fixed by brackets, clamping blocks, or guide positioning plates to ensure that the guide axis is aligned with the discharge direction of the stamping die 40. When used with a downstream conveyor, it can form a complete automatic receiving-guiding-conveying system.

[0044] In this embodiment, by employing the technical means of symmetrically arranging two second annular receiving grooves 220 on both sides of the first annular receiving groove 210 and coaxially arranging the three annular structures, the product can simultaneously obtain balanced and stable limiting and guiding forces on both sides of the planar portion 120 during the process of being introduced into the guide sleeve 20. Therefore, it effectively solves the technical problems of posture deviation, unstable clamping or material shaking caused by single-point or asymmetrical guidance in the prior art, thereby achieving the technical effects of more precise product posture control, smoother guiding process, and wider structural adaptability.

[0045] Furthermore, a magnetic element 30 is provided in the second annular receiving groove 220. The working surface of the magnetic element 30 is opposite to the planar portion 120, and is used to adsorb and position the bent product 10 during its passage.

[0046] Specifically: The magnetic component 30 is preferably disposed in the bottom or side wall of the second annular receiving groove 220, with its working surface facing the inner cavity of the guide sleeve 20, forming a relative arrangement with the flat portion 120 of the bent product 10 passing through this position. The magnetic component 30 can be an embedded permanent magnet, a rubber-coated magnet, or an inlaid structured magnet, and different materials and structural types can be selected according to the space constraints and adsorption force requirements of the usage environment.

[0047] The magnetic component 30 is installed inside the second annular receiving groove 220 by means of press fitting, adhesive bonding, slot limiting, or insert fastening. Its adsorption surface is slightly lower than or basically flush with the edge of the groove opening, so that during the process of bending the product 10 through the guide sleeve 20, the flat part 120 can approach or abut against the adsorption surface to achieve magnetic attraction and fixation in a non-contact or weak contact state.

[0048] In terms of structural function, the magnetic component 30 applies an attractive force to the flat portion 120 of the bent product 10, ensuring that the product remains stably attached to the predetermined guide surface during gravity-driven descent or being pushed through the guide sleeve 20 by the conveying component. This effectively avoids attitude drift or rotational errors caused by its own center of gravity shift, impact disturbances, or vibrations. Magnetic positioning has the advantages of requiring no mechanical interference, no power source, fast response speed, and strong adaptability, making it particularly suitable for fast-paced guiding scenarios in high-cycle production.

[0049] To enhance structural diversity, in optional embodiments, multiple magnetic components 30 can be evenly distributed at different circumferential positions in the second annular receiving groove 220 to enhance the magnetic attraction coverage area; or a soft magnetic structure with adjustable magnetic attraction strength can be provided to match the changing adsorption force requirements of different products.

[0050] In this embodiment, by employing a magnetic element 30 disposed within the second annular receiving groove 220, and by arranging the working surface of the magnetic element 30 opposite to the planar portion 120 of the bent product 10, the bent product 10 can be stably magnetically attracted and positioned during its passage through the guide sleeve 20. Therefore, this effectively solves the problem of posture changes and directional rotation of the bent product 10 due to slippage inertia or gravitational offset in the prior art. Consequently, it achieves the technical effect of improving the guiding stability and automatic feeding reliability of the bent product 10 without introducing complex structures or additional control systems.

[0051] In some embodiments, second annular receiving grooves 220 are respectively provided on both sides of the first annular receiving groove 210, and the magnetic element 30 is respectively provided in the two second annular receiving grooves 220, so that the magnetic element 30 exists on both sides of the bending structure 110.

[0052] Specifically: Two second annular receiving grooves 220 are respectively provided on the outer periphery of the guide sleeve 20 around the axial sides of the first annular receiving groove 210, and magnetic elements 30 are respectively provided in the two second annular receiving grooves 220, so that the flat parts 120 on both sides of the bent structure 110 are within the range of action of the magnetic elements 30, forming a double-sided adsorption and positioning structure.

[0053] In this structure, the cross-sectional profile of the first annular receiving groove 210 corresponds to the shape of the bending structure 110 and is located in the axial middle region of the guide sleeve 20; while two second annular receiving grooves 220 are respectively located above and below it, forming an axially symmetrical arrangement about the first annular receiving groove 210. The cross-sectional width of the two second annular receiving grooves 220 is adapted to the planar portion 120 of the bent product 10, and the depth is moderate to accommodate the magnetic component 30. The magnetic component 30 is embedded in it and fixed by the groove wall or the back sealing plate, which ensures reliable installation and easy replacement.

[0054] The magnetic components 30 are all oriented radially inward, with their functional surfaces facing the inner cavity of the guide sleeve 20, and are used to apply an adsorption force when the flat portion 120 of the bent product 10 passes through. The two magnetic components 30 act simultaneously on both sides of the product's axial direction, ensuring that the flat portion 120 remains in a controlled state, held by magnetic forces from both sides, during the product's passage through the guide channel, thereby further enhancing the attitude locking effect. The magnetic components 30 can be made of high-remanence neodymium iron boron materials, rubber magnetic sheets, neodymium alloy-coated magnetic pillars, etc., and the adsorption force level can be set according to the product quality, material, and feeding speed.

[0055] This dual-sided magnetic structure significantly improves symmetry and anti-rotation performance, making it particularly suitable for bent stamping parts with eccentric mass, uneven structure, and a tendency to be subjected to uneven loads. When used in conjunction with a through-type material guide channel, it can maintain the continuous stability of the bent product 10 throughout the entire feeding path. This structure requires no external power supply, control devices, or sensing systems, significantly simplifying system complexity while ensuring automation requirements are met.

[0056] In this embodiment, by employing the technique of setting second annular receiving grooves 220 on both sides of the first annular receiving groove 210 and setting magnetic components 30 in the two second annular receiving grooves 220 respectively, so that both sides of the bending structure 110 are magnetically attracted, the problem of posture deflection, clamping instability or rotation error caused by single point or single side limit during the blanking process of the bending product 10 in the prior art is effectively solved. Thus, the dual-sided stable maintenance of the product posture, the highly reliable positioning of the guiding process, and the stronger versatility and robustness of the structure application are achieved.

[0057] Furthermore, the working surface of the magnetic element 30 is substantially flush with the opening edge of the second annular receiving groove 220 in the radial direction, so as to contact and engage with the planar portion 120 during the bending of the product 10 through the guide sleeve 20. When the bent product 10 passes through the guide sleeve 20, the planar portion 120 is located within the radial working area of ​​the magnetic element 30 on both sides of the first annular receiving groove 210.

[0058] Specifically: A magnetic element 30 is embedded in a second annular receiving groove 220 on the outer periphery of the guide sleeve 20. The working surface of the magnetic element 30 is basically flush with the opening edge of the second annular receiving groove 220 in the radial direction. That is, its adsorption surface facing the inner cavity of the guide sleeve 20 is at the same radial height as the edge of the groove, or slightly recessed to accommodate product tolerances. This arrangement allows the flat portion 120 of the bent product 10 to naturally abut or approach the working surface of the magnetic element 30 during the process of passing through the guide sleeve 20, forming an adsorption fit.

[0059] Specifically, the guide sleeve 20 is a hollow cylindrical structure, with a first annular receiving groove 210 located in its axial central region for embedding the product's bending structure 110. Second annular receiving grooves 220 are respectively provided on both sides of the first annular receiving groove 210, and magnetic components 30 are installed in each of the two second annular receiving grooves 220, so that the magnetic components 30 are symmetrically distributed on both sides of the bending structure 110, forming a double-sided adsorption and positioning system.

[0060] The magnetic component 30 is installed in the second annular receiving groove 220 via slot engagement, back-side limiting, or ring clamping. Its material is preferably neodymium iron boron, ferrite, or rubber magnet, and the specific adsorption force is preset based on the material and thickness of the flat part 120 of the product. The working surface is a flat, smooth surface or a textured surface to improve magnetic contact stability.

[0061] During the process of the product entering the guide sleeve 20, its bending structure 110 is first embedded and limited by the first annular receiving groove 210. Then, the flat part 120 enters the adsorption area composed of two magnetic elements 30 during axial sliding. At this time, the flat part 120 of the product will be in the same adsorption range as the magnetic elements 30 in the radial direction, and is exactly located in the radial action area on both sides of the first annular receiving groove 210, so as to achieve stable clamping and anti-rotation constraint.

[0062] This arrangement can automatically achieve adsorption and limiting during the sliding process of the product using magnetic force without introducing interference from other mechanical structures. It is particularly suitable for applications where stamped parts are released quickly and demolded at high speeds. It can stably control the product's posture and prevent rotation and jumping.

[0063] In this embodiment, by employing a method in which the working surface of the magnetic component 30 is basically flush with the opening edge of the second annular receiving groove 220 in the radial direction, and by ensuring that the flat portion 120 of the bent product 10 is always within the radial working area of ​​the magnetic components 30 on both sides of the first annular receiving groove 210 during the process of passing through the guide sleeve 20, the problem of posture tilting and decreased guiding accuracy caused by adsorption force offset, working surface misalignment or magnetic instability during the feeding process in the prior art is effectively solved. Thus, the technical effect of improving the stability of product posture and positioning reliability is achieved while maintaining smooth conduction.

[0064] The above description in this specification is merely illustrative of the present invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not depart from the content of this specification or exceed the scope defined in the claims, all of which shall fall within the protection scope of this invention.

Claims

1. A feeding mechanism for bent stamping products, used to receive and convey bent products formed by die stamping, the bent products including a bending structure protruding along the thickness direction and a planar portion connected to the bending structure, characterized in that, include: A guide sleeve installed at the material outlet of the stamping die; The outer periphery of the guide sleeve is provided with a first annular receiving groove that is continuous in the circumferential direction. The cross section of the first annular receiving groove matches the shape of the bending structure and is used to embed and limit the bending structure when the bent product enters the guide sleeve. The outer periphery of the guide sleeve has a second annular receiving groove that is continuous in the circumferential direction at a position corresponding to the planar part. The cross section of the second annular receiving groove matches the shape of the planar part so that it contacts and engages with the planar part during the process of the bent product passing through the guide sleeve, thereby forming radial constraint and circumferential anti-rotation constraint on the bent product, thus suppressing the posture change and positional deviation of the bent product during the feeding process. A conveying assembly, located downstream of the guide sleeve, is used to drive the bent product to move along the discharge direction.

2. The feeding mechanism according to claim 1, characterized in that, The guide sleeve is a circular sleeve that runs through the material discharge direction.

3. The feeding mechanism according to claim 1, characterized in that, The number of the second annular receiving grooves is two. The two second annular receiving grooves are symmetrically arranged on both sides of the first annular receiving groove in the axial direction and are coaxial with the first annular receiving groove.

4. The feeding mechanism according to any one of claims 1 to 3, characterized in that, A magnetic component is provided in the second annular receiving groove. The working surface of the magnetic component is opposite to the planar part, and it is used to adsorb and position the bent product during the process.

5. The feeding mechanism according to claim 4, characterized in that, The second annular receiving groove is provided on both sides of the first annular receiving groove, and the magnetic element is provided in each of the two second annular receiving grooves, so that the magnetic element exists on both sides of the bent structure.

6. The feeding mechanism according to claim 5, characterized in that, The working surface of the magnetic component is substantially flush with the opening edge of the second annular receiving groove in the radial direction, so as to contact and cooperate with the planar part during the bending of the product through the guide sleeve.

7. The feeding mechanism according to claim 6, characterized in that, When the bent product passes through the guide sleeve, the flat portion is located within the radial action area of ​​the magnetic component on both sides of the first annular receiving groove.

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