Positioning and feeding device with arc-shaped non-magnetic stainless steel framework

Abstract

The present application relates to rubber vulcanization molding technical field, the present application provides a kind of positioning feeder of arc-shaped non-magnetic stainless steel framework, positioning feeder is used to be loaded into the mold with mold core in framework, mold core can be lifted;Positioning feeder includes: upper plate;Lower plate, there is interval between lower plate and upper plate;At least one sliding cylinder, fixedly connected with upper plate;At least one ejection channel, it is set on lower plate, sliding cylinder slides up and down along ejection channel;At least one feeder positioning pin, the upper end of feeder positioning pin is limited in the inside of sliding cylinder, framework is worn on feeder positioning pin, and the bottom of the feeder positioning pin is positioned with corresponding mold core;Press upper plate, upper plate can drive sliding cylinder to move down and eject framework, framework slides to mold core.This positioning feeder of arc-shaped non-magnetic stainless steel framework can ensure the position consistency of arc-shaped non-magnetic stainless steel framework in mold multi-cavity, and positioning precision is high and feeding efficiency is high.

Description

Technical Field

[0001] This invention relates to the field of rubber vulcanization molding technology, and more specifically, to a positioning feeder with an arc-shaped non-magnetic stainless steel skeleton. Background Technology

[0002] In sealing products such as refrigerant valves, sealing assemblies combining metal skeletons and rubber components are often used to achieve dynamic sealing of shafts. A typical existing structure involves assembling two vulcanized rubber components on opposite sides of a shaft, utilizing the interplay between the curved surfaces of the metal skeleton and the curved surfaces of the shaft to achieve a sealing effect.

[0003] With technological advancements, to improve the stability and reliability of sealing components, structures have emerged that directly vulcanize rubber components integrally onto a metal skeleton. The metal skeleton is typically made of non-magnetic stainless steel, while the rubber material is hydrogenated nitrile butadiene rubber (HNBR). The skeleton structure of such products is designed in an arc shape, with the rubber vulcanized on the upper and lower arc surfaces of the skeleton. This integrated structure places extremely high demands on manufacturing precision: the rubber's position on the skeleton must be accurate to ensure the final product's sealing performance.

[0004] Specifically, to ensure that the vulcanized product has no excess adhesive and achieves an ideal sealing effect, the cavity surface of the vulcanizing mold and the arc surface of the skeleton must fit perfectly. Simultaneously, the skeleton must be precisely positioned in the front-to-back and left-to-right directions within the mold. This necessitates that, during the mass production of multi-cavity vulcanizing molds, the position of each skeleton within its respective mold cavity must be highly consistent and precise.

[0005] However, existing technologies mainly employ manual feeding or traditional pull-plate feeders. For example, patent application number CN202223310896.2 discloses a novel metal skeleton feeder fixture, including a pull plate with multiple slots; magnets, with multiple magnets respectively disposed inside the slots; handles installed on the left and right sides of the upper surface of the pull plate; and multiple symmetrically arranged positioning holes. When using this fixture for feeding, the metal skeleton is first placed sequentially under the slots, and the magnets can attract and fix the metal skeleton. At this point, the lower end of each slot is connected to the metal skeleton to be fed. Finally, the pull plate is placed vertically on the corresponding mold, and each metal skeleton is inserted into the corresponding slot of the mold at once. Then, the pull plate is pulled to detach from the metal skeleton, leaving all the metal skeletons in the mold at specific positions. While this patent facilitates quick feeding by employees, is convenient to operate, saves costs, reduces auxiliary time for workers, and can improve production efficiency, it has significant limitations when dealing with irregularly shaped skeletons that are arc-shaped, non-magnetic, and have uneven weight distribution. On the one hand, because the skeleton is non-magnetic, it cannot be positioned using magnetic attraction. On the other hand, the feeder relies on the skeleton's own gravity to fall into the mold cavity, and for irregularly shaped skeletons, the falling posture is unstable, making it difficult to ensure consistent positioning in multi-cavity molds. This directly leads to problems such as low positioning accuracy of the skeleton in the mold and poor feeding efficiency, which in turn affects the stability of the vulcanization temperature and the final product's quality pass rate, severely restricting the feasibility of mass production of this type of product.

[0006] In summary, traditional feeders cannot guarantee the consistent position of the arc-shaped non-magnetic stainless steel skeleton in the multi-cavity mold, resulting in problems such as low positioning accuracy and poor feeding efficiency.

[0007] In view of this, the present invention is hereby proposed. Summary of the Invention

[0008] The purpose of this invention is to propose a positioning feeder for an arc-shaped non-magnetic stainless steel skeleton, in order to solve the problems of low positioning accuracy and poor feeding efficiency of traditional feeders in the prior art, which cannot guarantee the positional consistency of the arc-shaped non-magnetic stainless steel skeleton in the multi-cavity mold.

[0009] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0010] A positioning feeder for an arc-shaped non-magnetic stainless steel skeleton, the positioning feeder being used to load the skeleton into a mold having a core, the core being liftable;

[0011] The positioning feeder includes:

[0012] upper plate;

[0013] The lower plate has a gap between it and the upper plate;

[0014] At least one sliding cylinder is fixedly connected to the upper plate;

[0015] At least one ejection channel is provided through the lower plate, and the slide cylinder slides up and down along the ejection channel;

[0016] At least one feeder positioning pin, the upper end of which is limited inside the slide tube, the skeleton passes through the feeder positioning pin, and the bottom of the feeder positioning pin is positioned in conjunction with the corresponding mold core.

[0017] Pressing the upper plate causes the slide cylinder to move downwards and push out the skeleton, which then slides onto the mold core.

[0018] Furthermore, at least one independent insert is provided on the lower plate, each independent insert corresponding to a work station of a skeleton. The center of the independent insert forms the ejection channel, and a mounting groove is provided below the independent insert. The ejection channel is connected to the mounting groove, and the skeleton is installed in the mounting groove.

[0019] Furthermore, a movable limiting and fixing block assembly is installed on the independent insert, the limiting and fixing block assembly being used to laterally abut against the skeleton to limit its horizontal displacement in the positioning feeder.

[0020] Furthermore, a limiting groove structure is provided on both sides opposite to the mounting groove, the limiting groove structure is connected to the mounting groove, and the limiting fixing block assembly is installed in the limiting groove structure.

[0021] Furthermore, an elastic element assembly is also installed within the independent insert, which cooperates with the limiting and fixing block assembly to provide lateral clamping force for the skeleton.

[0022] Furthermore, the positioning feeder also includes a support column assembly for supporting the skeleton during transfer from the positioning feeder to the mold.

[0023] Furthermore, the support column assembly includes:

[0024] The feeding support column is used to support the lower plate when the skeleton is loaded into the positioning feeder, so that the upper plate is in a suspended state.

[0025] A feeding support column is used to contact the mold surface to support the positioning feeder when the skeleton is transferred from the positioning feeder to the mold.

[0026] Furthermore, an adjustment groove for compensating for height tolerance is provided between the upper end of the feeder positioning pin and the inner wall of the slide cylinder.

[0027] Furthermore, a fitting and limiting structure is provided on the mold core.

[0028] Furthermore, the lower plate and the upper plate are connected by a connector, and an elastic element is provided between the lower plate and the upper plate, the elastic element being sleeved on the connector.

[0029] The present invention proposes a positioning feeder with an arc-shaped non-magnetic stainless steel frame. Compared with the prior art, the positioning feeder with an arc-shaped non-magnetic stainless steel frame of the present invention has the following advantages:

[0030] This invention discloses a positioning feeder for an arc-shaped non-magnetic stainless steel skeleton, providing a positioning and fixing feeding solution for the arc-shaped non-magnetic skeleton without affecting the product's size or appearance. During feeding, the bottom of the feeder's positioning pin engages with the corresponding mold core, ensuring the consistency of the arc-shaped non-magnetic stainless steel skeleton's position within the multiple cavities of the mold. This high positioning accuracy guarantees the dimensional requirements of the product after vulcanization and satisfies its performance. By pressing the upper plate, all sliding cylinders move synchronously downwards, simultaneously ejecting the skeletons at their respective stations and allowing them to slide onto the corresponding mold cores. This achieves one-time, synchronous feeding of all cavities, resulting in higher feeding efficiency compared to traditional methods of feeding one or more at a time or in batches. It also ensures the mold temperature for vulcanization, enabling mass production of the mold, guaranteeing product qualification rates, and meeting customer delivery requirements. Attached Figure Description

[0031] Figure 1 This is one of the three-dimensional structural schematic diagrams of an arc-shaped non-magnetic stainless steel frame according to an embodiment of the present invention;

[0032] Figure 2 This is a second three-dimensional structural schematic diagram of an arc-shaped non-magnetic stainless steel frame according to an embodiment of the present invention;

[0033] Figure 3 This is a front view of an arc-shaped non-magnetic stainless steel frame according to an embodiment of the present invention;

[0034] Figure 4 This is a top-view three-dimensional structural diagram of an arc-shaped non-magnetic stainless steel skeleton integrally vulcanized with a first rubber part and a second rubber part, as described in an embodiment of the present invention.

[0035] Figure 5 This is a bottom-view three-dimensional structural diagram of an arc-shaped non-magnetic stainless steel skeleton integrally vulcanized with a first rubber part and a second rubber part, as described in an embodiment of the present invention.

[0036] Figure 6This is a three-dimensional structural diagram of a positioning feeder with an arc-shaped non-magnetic stainless steel frame according to an embodiment of the present invention;

[0037] Figure 7 This is a top view of a positioning feeder with an arc-shaped non-magnetic stainless steel frame according to an embodiment of the present invention;

[0038] Figure 8 For along Figure 7 A sectional view of the center section line AA;

[0039] Figure 9 for Figure 8 A magnified structural diagram of A in the middle;

[0040] Figure 10 for Figure 8 A magnified structural diagram of B in the diagram;

[0041] Figure 11 This is a bottom view of a positioning feeder with an arc-shaped non-magnetic stainless steel frame according to an embodiment of the present invention;

[0042] Figure 12 for Figure 11 A magnified structural diagram of A in the middle;

[0043] Figure 13 This is a three-dimensional structural diagram of a mold that cooperates with a positioning feeder of an arc-shaped non-magnetic stainless steel frame, according to an embodiment of the present invention.

[0044] Explanation of reference numerals in the attached figures:

[0045] 1. Frame; 11. Upper arc surface; 111. Upper annular groove; 12. Lower arc surface; 121. Lower annular groove; 13. Center positioning hole; 14. Connecting hole; 2. Mold; 21. Mold core; 22. Positioning groove; 23. Fitting and limiting structure; 3. Positioning feeder; 31. Upper plate; 311. Connector; 312. Elastic component; 313. Spacing; 314. First handle; 315. Second positioning hole; 316. Clearance groove; 32. Lower plate; 321. Ejection channel; 322. Second handle; 323. First positioning hole; 33. Slide cylinder; 34. Feeder positioning pin 341. Radial protrusion; 342. Positioning post; 35. Independent insert; 351. Limiting and fixing block assembly; 3511. First limiting and fixing block; 3512. Second limiting and fixing block; 352. Elastic element assembly; 3521. First elastic element; 3522. Second elastic element; 353. Mounting groove; 354. Limiting groove structure; 3541. First limiting groove; 3542. Second limiting groove; 36. Support column assembly; 361. Feeding support column; 362. Adding support column; 37. Adjusting groove; 41. First rubber part; 42. Second rubber part. Detailed Implementation

[0046] To make the technical means and objectives and effects of the present invention easier to understand, the embodiments of the present invention will be described in detail below with reference to specific illustrations.

[0047] It should be noted that all directional and positional terms used in this invention, such as "up," "down," "left," "right," "front," "back," "vertical," "horizontal," "inner," "outer," "top," "bottom," "lateral," "longitudinal," and "center," are only used to explain the relative positional relationships and connections between components in a specific state (as shown in the accompanying drawings). They are merely for the convenience of describing the invention and do not require the invention to be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on the invention. Furthermore, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0048] In the description of this invention, unless otherwise explicitly 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; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0049] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0050] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0051] Example 1

[0052] In the existing technology, traditional feeders cannot guarantee the consistent position of the arc-shaped non-magnetic stainless steel skeleton 1 in the multi-cavity mold 2, resulting in problems such as low positioning accuracy and poor feeding efficiency.

[0053] To solve the above technical problems, such as Figures 1-13As shown, this embodiment proposes a positioning feeder for an arc-shaped non-magnetic stainless steel skeleton. The positioning feeder 3 is used to load the skeleton 1 into a mold 2 with a mold core 21, which can be raised and lowered.

[0054] like Figures 1-3 As shown, the frame 1 is made of non-magnetic stainless steel and is arc-shaped. The frame 1 includes an upper arc surface 11 and a lower arc surface 12. A central positioning hole 13 is provided through the center of the frame 1. An upper annular groove 111 is provided on the upper arc surface 11, surrounding the central positioning hole 13. A lower annular groove 121 is provided on the lower arc surface 12, surrounding the central positioning hole 13. A connecting hole 14 is provided through the frame 1, and the upper annular groove 111 and the lower annular groove 121 are connected through the connecting hole 14.

[0055] like Figure 4 and Figure 5 As shown, the skeleton 1 is integrally vulcanized with the first rubber part 41 and the second rubber part 42, wherein the first rubber part 41 is vulcanized in the upper annular groove 111 and the second rubber part 42 is vulcanized in the lower annular groove 121.

[0056] like Figures 6-12 As shown, the positioning feeder 3 includes:

[0057] upper plate 31;

[0058] The lower plate 32 is disposed opposite to the upper plate 31, and there is a gap 313 between the lower plate 32 and the upper plate 31.

[0059] At least one sliding cylinder 33 is fixedly connected to the upper plate 31;

[0060] At least one ejection channel 321 is provided through the lower plate 32, and the slide cylinder 33 slides up and down along the ejection channel 321.

[0061] At least one feeder positioning pin 34, the upper end of which is limited inside the slide cylinder 33, the skeleton 1 is inserted through the feeder positioning pin 34, and the bottom of the feeder positioning pin 34 is positioned in conjunction with the corresponding mold core 21.

[0062] Support column assembly 36, which is used to support the skeleton 1 when transferring it from the positioning feeder 3 to the mold 2;

[0063] When the skeleton 1 is transferred from the positioning feeder 3 to the mold 2, the support column assembly 36 provides support, the mold core 21 rises, the bottom of the feeder positioning pin 34 cooperates with the corresponding mold core 21 for positioning, the upper plate 31 is pressed, the upper plate 31 can drive the slide cylinder 33 to move down and push out the skeleton 1, the skeleton 1 slides onto the mold core 21, and the skeleton 1 descends into the cavity of the mold 2 along with the mold core 21.

[0064] The positioning feeder with an arc-shaped non-magnetic stainless steel frame described in this invention has the following advantages:

[0065] 1. Significantly improves the positional consistency of multi-cavity feeding: On the one hand, the skeleton 1 is mounted on the feeder positioning pin 34, achieving initial axial and radial positioning of the skeleton 1 within the positioning feeder 3; the bottom of each feeder positioning pin 34 engages with the corresponding mold core 21 for positioning, ensuring that the central axis of the skeleton 1 at each station is precisely aligned with the axis of the mold core 21; this dual positioning eliminates accumulated errors, forming a high-precision coaxial transmission chain from "skeleton 1 → feeder positioning pin 34 → mold core 21". Compared to the traditional method relying on the overall positioning of the feeder or manual visual inspection, this solution fundamentally solves the problem of poor positional consistency of the arc-shaped skeleton 1 in the multi-cavity mold 2, achieving extremely high repeatability of the position of each skeleton 1 falling into its respective mold core 21. On the other hand, all the slide cylinders 33 are fixedly connected to the upper plate 31. When the upper plate 31 is pressed, all the slide cylinders 33 move down synchronously and eject the skeleton 1 on their respective workstations at the same time. This avoids the risks of mold 2 vibration and the already positioned skeleton 1 being knocked off by subsequent actions that may be caused by step-by-step or asynchronous ejection, and ensures the consistency of the posture of the multi-cavity skeleton 1 when it falls into the mold core 21.

[0066] 2. Significantly Improved Feeding Efficiency and Operational Reliability: First, operators only need to press the upper plate 31 once to simultaneously eject and slide the skeletons 1 from all workstations onto the corresponding mold cores 21. Second, the slide cylinder 33 slidably passes through the ejection channel 321 on the lower plate 32. This fit is either a clearance fit or a sliding fit, providing excellent vertical guidance. This ensures that the ejection force acts strictly in the vertical direction, preventing the skeletons 1 from tilting or jamming during ejection, improving the smoothness and reliability of the feeding action, and reducing the feeding failure rate caused by ejection deviation. Third, during feeding, the support column assembly 36 first contacts the surface of the mold 2 or the worktable, stably positioning the entire feeder 3 above the mold 2. This provides a stable reaction force base for pressing the upper plate 31, preventing the feeder 3 from shaking or shifting during pressing, further ensuring feeding accuracy, and also making operation more labor-saving and safer.

[0067] 3. After the skeleton 1 is ejected, it is not forcibly pressed into the mold core 21, but slides onto the mold core 21 by gravity, which protects the quality of the skeleton 1 and reduces the scrap rate.

[0068] 4. Adapts to the special shape of the arc-shaped frame 1, providing a positioning and fixing solution for the arc-shaped non-magnetic frame 1, without affecting the size and appearance of the product itself.

[0069] In this embodiment, as Figure 7 and Figure 11 As shown, the positioning feeder 3 has 36 workstations on the frame 1.

[0070] Specifically, such as Figure 9 As shown, at least one independent insert 35 is provided on the lower plate 32, each independent insert 35 corresponds to a work station of a skeleton 1, the center of the independent insert 35 forms the ejection channel 321, and an installation groove 353 is provided below the independent insert 35. The ejection channel 321 is connected to the installation groove 353, and the skeleton 1 is installed in the installation groove 353.

[0071] More specifically, the independent insert 35 is fixedly connected to the lower plate 32.

[0072] Specifically, such as Figure 9 and Figure 12 As shown, an independent movable limiting and fixing block assembly 351 is installed on the independent insert 35. The limiting and fixing block assembly 351 is used to abut against the skeleton 1 from the side to limit its horizontal displacement in the positioning feeder 3.

[0073] More specifically, such as Figure 9 and Figure 12 As shown, limiting groove structures 354 are provided on opposite sides of the mounting groove 353. The limiting groove structures 354 are connected to the mounting groove 353, and the limiting fixing block assembly 351 is installed in the limiting groove structure 354.

[0074] Specifically, such as Figure 9 As shown, an elastic element assembly 352 is also installed in the independent insert 35. The elastic element assembly 352 cooperates with the limiting and fixing block assembly 351 to provide lateral clamping force for the skeleton 1.

[0075] The compression deformation of the elastic element assembly 352 drives the limiting and fixing block assembly 351 to position the skeleton 1 in the left and right directions, so that the skeleton 1 is fixed in the positioning feeder 3.

[0076] More specifically, the elastic element assembly 352 is installed in the limiting groove structure 354 on the side away from the skeleton 1, and the limiting fixing block assembly 351 is pressed onto the elastic element assembly 352.

[0077] More specifically, the elastic element assembly 352 is an O-ring.

[0078] Specifically, the limiting and fixing block assembly 351 is made of flexible material. The limiting and fixing block assembly 351 is used to directly contact and clamp the skeleton 1 to avoid damage to the surface of the skeleton 1 and reduce the scrap rate.

[0079] Furthermore, the flexible material is not specifically limited. For example, the flexible material can be engineering plastics or rubbers with a certain degree of elasticity and temperature resistance, such as polyurethane rubber or silicone rubber.

[0080] More specifically, such as Figure 12 As shown, the limiting groove structure 354 includes a first limiting groove 3541 and a second limiting groove 3542, which are symmetrically arranged on the left and right sides of the mounting groove 353.

[0081] More specifically, such as Figure 12 As shown, the limiting and fixing block assembly 351 includes a first limiting and fixing block 3511 and a second limiting and fixing block 3512, and the elastic element assembly 352 includes a first elastic element 3521 and a second elastic element 3522. The first limiting and fixing block 3511 and the first elastic element 3521 are installed in the first limiting groove 3541, and the second limiting and fixing block 3512 and the second elastic element 3522 are installed in the second limiting groove 3542.

[0082] By cooperating with the limiting and fixing block assembly 351 and the elastic element assembly 352 within the independent insert 35, a flexible and stable lateral clamping force is provided on the skeleton 1 from both sides, effectively limiting the horizontal movement of the skeleton 1 during the handling and waiting for ejection process of the positioning feeder 3. Since the skeleton 1 is arc-shaped, its center of gravity is unstable, making lateral clamping particularly critical. This ensures that the posture of each skeleton 1 is consistent in its respective station, further improving the consistency of the multi-cavity position.

[0083] Specifically, such as Figure 6 and Figure 8 As shown, the support column assembly 36 includes:

[0084] The feeding support column 361 is used to support the lower plate 32 when the frame 1 is loaded into the positioning feeder 3, so that the upper plate 31 is in a suspended state.

[0085] The feeding support column 362 is used to contact the surface of the mold 2 to support the positioning feeder 3 when the skeleton 1 is transferred from the positioning feeder 3 to the mold 2.

[0086] The feeding support column 361 supports the lower plate 32 during the feeding process of the frame 1 to the positioning feeder 3, so that the upper plate 31 is not subjected to force. This allows operators or robots to place the frame 1 into the mounting slots 353 of each station without interference. The feeding support column 362 is used to contact the surface of the mold 2 when transferring the frame 1 from the positioning feeder 3 to the mold 2, stably supporting the entire positioning feeder 3 and providing a solid foundation for pressing the upper plate 31. This design distinguishes the mechanical states of the two key processes of "feeding" and "loading", optimizes the operation process, avoids misoperation, and improves the smoothness and reliability of the production cycle.

[0087] Specifically, such as Figure 6 As shown, the support column assembly 36 is mounted on the lower plate 32, and the upper plate 31 is provided with a clearance groove 316 at the corresponding position of the support column assembly 36. The clearance groove 316 is used to avoid the support column assembly 36.

[0088] More specifically, such as Figure 6 and Figure 8 As shown, the feeding support column 361 is located above the lower plate 32, and the feeding support column 362 is located below the lower plate 32.

[0089] More specifically, such as Figure 6 As shown, the clearance groove 316 is used to avoid the feeding support column 361.

[0090] Specifically, such as Figure 9 As shown, an adjustment groove 37 for compensating for height tolerance is provided between the upper end of the feeder positioning pin 34 and the inner wall of the slide cylinder 33.

[0091] The adjustment groove 37 allows the feeder positioning pin 34 to move slightly during the process of the slide cylinder 33 moving down to eject the skeleton 1, which can eliminate height and flatness errors, thereby ensuring that the feeder positioning pin 34 fits tightly with the mold core 21, and thus ensuring that each skeleton 1 can be accurately ejected to the correct height.

[0092] Specifically, a first positioning structure is provided on the mold 2, and a second positioning structure is provided on the positioning feeder 3. When the skeleton 1 is transferred from the positioning feeder 3 to the mold 2, the second positioning structure cooperates with the first positioning structure to perform positioning.

[0093] More specifically, such as Figure 7 and Figure 11 As shown, the second positioning structure includes a first positioning hole 323 and a second positioning hole 315. The first positioning hole 323 and the second positioning hole 315 are coaxially arranged. The first positioning structure includes a first positioning pin, which cooperates with the first positioning hole 323 and the second positioning hole 315.

[0094] By cooperating with the first positioning pin on the mold 2 through the first positioning hole 323 and the second positioning hole 315, the spatial position of the entire positioning feeder 3 on the mold 2 is locked, which further improves the positional consistency of the arc-shaped non-magnetic stainless steel skeleton 1 in the multi-cavity mold 2 and achieves high positioning accuracy.

[0095] More specifically, such as Figure 11 As shown, the first positioning hole 323 is disposed on the lower plate 32, as... Figure 7 As shown, the second positioning hole 315 is disposed on the upper plate 31.

[0096] Specifically, such as Figure 10 As shown, the lower plate 32 and the upper plate 31 are connected by a connector 311. An elastic member 312 is provided between the lower plate 32 and the upper plate 31, and the elastic member 312 is sleeved on the connector 311.

[0097] After one pressing and feeding cycle is completed, the upper plate 31 automatically resets under the action of the elastic element 312, preparing for the next feeding cycle and simplifying the operation steps.

[0098] More specifically, such as Figure 9 and Figure 13 As shown, a fitting and limiting structure 23 is provided on the mold core 21. The fitting and limiting structure 23 protrudes radially outward toward the mold core 21 and is an arc surface.

[0099] The arc surface of the fitting limiting structure 23 and the arc surface of the skeleton 1 have a matching arc surface fit relationship. In the initial stage of the mold core 21 descending, the fitting limiting structure 23 will guide the skeleton 1 to produce a slight translation or rotation, thereby adaptively correcting the slight positional deviation that may occur during the feeding process, so that the skeleton 1 finally falls completely and accurately into the predetermined position of the cavity of the mold 2.

[0100] When the skeleton 1 slides down to the fitting limiting structure 23, the arc surface of the skeleton 1 matches the arc surface of the fitting limiting structure 23. The arc-shaped skeleton 1 will adaptively adjust some slight positioning errors as the fitting limiting structure 23 adjusts. The skeleton 1 will no longer slide down. Then, the mold core 21 descends, and the skeleton 1 descends into the cavity of the mold 2 along with the mold core 21.

[0101] More specifically, such as Figure 9 and Figure 13 As shown, a positioning groove 22 is provided on the top of the mold core 21, such as... Figure 9 As shown, a positioning post 342 is provided at the bottom of the feeder positioning pin 34, and the positioning post 342 cooperates with the positioning groove 22 for positioning.

[0102] Positioning pin 342 works in conjunction with positioning groove 22 to ensure that the center of skeleton 1 at each station is aligned with the center of mold core 21, further improving the positional consistency of the arc-shaped non-magnetic stainless steel skeleton 1 in the multi-cavity mold 2, and achieving high positioning accuracy.

[0103] More specifically, such as Figure 9 As shown, the feeder positioning pin 34 has a radial protrusion 341 above the positioning post 342, and the central positioning hole 13 of the skeleton 1 passes through the radial protrusion 341.

[0104] By utilizing the original central positioning hole 13 of the skeleton 1, which is inserted into the radial protrusion 341 of the feeder positioning pin 34, the axial and radial initial positioning of the skeleton 1 in the positioning feeder 3 is achieved, further improving the positioning accuracy in the multi-cavity mold.

[0105] More specifically, such as Figure 6 As shown, a first handle 314 is provided on the upper plate 31, and a second handle 322 is provided on the lower plate 32.

[0106] More specifically, such as Figure 6 As shown, the first handle 314 is located above the upper plate 31, and the second handle 322 is located on the side of the lower plate 32.

[0107] The present invention discloses a positioning feeder for an arc-shaped non-magnetic stainless steel skeleton. When the skeleton 1 is installed into the positioning feeder 3, the positioning feeder 3 is inverted, and the feeding support column 361 supports the lower plate 32, so that the upper plate 31 is in a suspended state. The center positioning hole 13 of the skeleton 1 is inserted into the radial protrusion 341 of the feeder positioning pin 34, so that the skeleton 1 is installed in the mounting groove 353 of the independent insert 35. Then, the limiting fixing block assembly 351 and the elastic element assembly 352 are installed in the limiting groove structure 354. The limiting fixing block assembly 351 and the elastic element assembly 352 provide flexible and stable lateral clamping force on the skeleton 1 from both sides, effectively limiting the horizontal movement of the skeleton 1 during the transportation and waiting for ejection process of the positioning feeder 3.

[0108] The present invention discloses a positioning feeder for an arc-shaped non-magnetic stainless steel skeleton. When the skeleton 1 is transferred from the positioning feeder 3 to the mold 2, the second positioning structure cooperates with the first positioning structure for positioning. The feeding support column 362 contacts the surface of the mold 2 to support the positioning feeder 3. The mold core 21 rises, and the positioning groove 22 of the mold core 21 cooperates with the positioning column 342 of the feeder positioning pin 34 for positioning. The upper plate 31 is pressed, and the upper plate 31 drives the slide cylinder 33. The skeleton 1 on the feeder positioning pin 34 is pushed down and slides onto the mold core 21. When the skeleton 1 slides onto the fitting limiting structure 23, the arc surface of the skeleton 1 matches the arc surface of the fitting limiting structure 23. The arc-shaped skeleton 1 will adaptively adjust some slight positioning errors with the fitting limiting structure 23. The skeleton 1 will no longer slide down. Then, the mold core 21 descends, and the skeleton 1 descends into the cavity of the mold 2 along with the mold core 21.

[0109] In summary, the positioning feeder for the arc-shaped non-magnetic stainless steel skeleton described in this invention has interconnected and inseparable structures, which can ensure the consistent position of the arc-shaped non-magnetic stainless steel skeleton 1 in the multi-cavity mold 2, with high positioning accuracy and high feeding efficiency.

[0110] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A positioning feeder with an arc-shaped non-magnetic stainless steel frame, characterized in that, The positioning feeder (3) is used to load the skeleton (1) into the mold (2) with the mold core (21), which is liftable; The positioning feeder (3) includes: upper plate(31); The lower plate (32) has a gap (313) between it and the upper plate (31). At least one slide cylinder (33) is fixedly connected to the upper plate (31); At least one ejection channel (321) is provided through the lower plate (32), and the slide cylinder (33) slides up and down along the ejection channel (321); At least one feeder positioning pin (34) is provided, the upper end of which is limited inside the slide cylinder (33), the skeleton (1) is inserted through the feeder positioning pin (34), and the bottom of the feeder positioning pin (34) is positioned in conjunction with the corresponding mold core (21). Pressing the upper plate (31) causes the upper plate (31) to move the slide cylinder (33) downward and push out the skeleton (1), and the skeleton (1) slides onto the mold core (21).

2. The positioning feeder with an arc-shaped non-magnetic stainless steel frame according to claim 1, characterized in that, At least one independent insert (35) is provided on the lower plate (32), each independent insert (35) corresponds to a work station of a skeleton (1), the center of the independent insert (35) forms the ejection channel (321), and an installation groove (353) is provided below the independent insert (35). The ejection channel (321) is connected to the installation groove (353), and the skeleton (1) is installed in the installation groove (353).

3. The positioning feeder with an arc-shaped non-magnetic stainless steel frame according to claim 2, characterized in that, The independent insert (35) is equipped with a movable limiting and fixing block assembly (351) for laterally abutting the skeleton (1) to limit its horizontal displacement in the positioning feeder (3).

4. The positioning feeder with an arc-shaped non-magnetic stainless steel frame according to claim 3, characterized in that, Limiting groove structures (354) are provided on opposite sides of the mounting groove (353), the limiting groove structures (354) are connected to the mounting groove (353), and the limiting fixing block assembly (351) is installed in the limiting groove structure (354).

5. The positioning feeder with an arc-shaped non-magnetic stainless steel frame according to claim 4, characterized in that, An elastic element assembly (352) is also installed in the independent insert (35), which cooperates with the limiting and fixing block assembly (351) to provide lateral clamping force for the skeleton (1).

6. The positioning feeder with an arc-shaped non-magnetic stainless steel frame according to claim 1, characterized in that, The positioning feeder (3) also includes a support column assembly (36) for supporting the skeleton (1) when transferring it from the positioning feeder (3) to the mold (2).

7. The positioning feeder with an arc-shaped non-magnetic stainless steel frame according to claim 6, characterized in that, The support column assembly (36) includes: The feeding support column (361) is used to support the lower plate (32) when the skeleton (1) is loaded into the positioning feeder (3), so that the upper plate (31) is in a suspended state; Feeding support column (362) is used to contact the surface of mold (2) to support the positioning feeder (3) when the skeleton (1) is transferred from the positioning feeder (3) to the mold (2).

8. The positioning feeder with an arc-shaped non-magnetic stainless steel frame according to claim 1, characterized in that, An adjustment groove (37) for compensating for height tolerance is provided between the upper end of the feeder positioning pin (34) and the inner wall of the slide (33).

9. The positioning feeder with an arc-shaped non-magnetic stainless steel frame according to claim 1, characterized in that, A fitting and limiting structure (23) is provided on the mold core (21).

10. A positioning feeder with an arc-shaped non-magnetic stainless steel frame according to claim 9, characterized in that, The lower plate (32) is connected to the upper plate (31) by a connector (311). An elastic element (312) is provided between the lower plate (32) and the upper plate (31), and the elastic element (312) is sleeved on the connector (311).

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