skeleton feeder

By designing a skeleton feeder with a boss that matches the mold cavity, and utilizing the thermal expansion characteristics of the skeleton to be loaded and magnetic adsorption, the problem of positional deviation of the skeleton feeder when placed in the mold was solved, achieving accurate loading and stability, and improving vulcanization quality.

CN224940341UActive Publication Date: 2026-11-06KACO WUXI
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Patent Information

Application Number
CN202522097236.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-29
Publication Date
2026-11-06
Estimated Expiration
2035-09-29

AI Technical Summary

Technical Problem

The existing skeleton feeder has a problem of poor separation after the skeleton is placed into the mold, which leads to positional deviation and affects the vulcanization quality.

Method used

A skeleton feeder was designed, which uses a boss to cooperate with the mold cavity. It utilizes the thermal expansion characteristics of the skeleton to be installed to make it interference fit with the mold cavity, ensuring accurate placement. The stability is improved by magnetic adsorption and limiting structure.

Benefits of technology

This ensures reliable and accurate loading of the skeleton to be installed, guarantees positional precision, avoids positional deviation, and improves vulcanization quality.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224940341U_ABST
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Abstract

This utility model relates to the field of tooling and fixture technology, and discloses a skeleton feeder, including a feeder body. The feeder body has a boss for extending into the mold cavity. The side surface of the boss is a mating conical surface adapted to the cavity wall. A protrusion is provided in the central area of ​​the head end of the boss, and the side surface of the protrusion and the edge area of ​​the head end of the boss form a skeleton positioning surface. The inner edge and one side of the skeleton to be loaded onto the feeder body abut against the skeleton positioning surface. After entering the mold cavity, the skeleton expands due to heat, causing an interference fit between the skeleton and the cavity wall, thus separating it from the feeder body. This skeleton feeder ensures that the skeleton is reliably and accurately loaded onto the feeder body, and utilizes the characteristic of the skeleton expanding due to heat upon contact with the mold, causing the skeleton to become tightly fitted to the mold cavity and separate from the feeder body, thereby achieving the purpose of accurately loading the skeleton into the mold.
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Description

Technical Field

[0001] This utility model relates to the field of tooling and fixture technology, and in particular to a skeleton feeder. Background Technology

[0002] A skeleton feeder is a device used in industrial production to precisely feed skeleton material into a mold, primarily to improve production efficiency and ensure product quality. Taking rubber products containing a skeleton as an example, during vulcanization, it is necessary to ensure that the skeleton and the mold are tightly fitted to prevent delamination. However, while existing feeders can complete the basic action of clamping the skeleton, there is a problem of misalignment during the separation process after the skeleton is placed in the mold, affecting the vulcanization quality. The root cause is mainly a defect in the clamping method of the feeder, which requires further optimization. Utility Model Content

[0003] Based on the above, the purpose of this utility model is to provide a skeleton feeder that enables convenient and accurate installation of the skeleton.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A skeleton feeder includes a feeder body with a boss for extending into the mold cavity. The side surface of the boss is a mating conical surface adapted to the cavity wall. A protrusion is provided in the central area of ​​the head end of the boss. The side surface of the protrusion and the edge area of ​​the head end of the boss form a skeleton positioning surface. The inner edge and one side of the skeleton to be installed on the feeder body abut against the skeleton positioning surface. After entering the mold cavity, the skeleton to be installed expands due to heat, causing the skeleton to be installed to be interference-fitted with the cavity wall of the mold cavity and separate from the feeder body.

[0006] As an alternative, the skeleton to be installed is made of metal, and magnets for adsorbing the skeleton are embedded in the edge area of ​​the head end of the boss.

[0007] As an alternative, a weight-reducing cavity is provided on the main body of the feeder and on the opposite side of the boss.

[0008] As an alternative, the side surface of the boss and the head end, as well as the side surface of the protrusion and the head end, are connected by rounded corners.

[0009] As an alternative, the raised side surface near the head end is a guide cone surface to facilitate the removal of the skeleton to be installed.

[0010] As an alternative, the cavity wall surface is provided with mounting grooves for limiting the skeleton to be installed.

[0011] As an alternative, at least a portion of the surface of the mounting groove is configured as a concave-convex surface to increase the friction between the groove and the skeleton to be mounted.

[0012] The beneficial effects of this utility model are:

[0013] This skeleton feeder, through its specially designed profile, ensures that the skeleton to be installed is reliably and accurately loaded onto the feeder body. The feeder body matches the mold cavity, enabling the skeleton to be installed to be accurately placed in the mold. Utilizing the characteristic of the skeleton to be installed expanding due to heat upon contact with the mold, the skeleton to be installed is transformed into a form that fits tightly with the mold cavity and separates from the feeder body, thereby achieving the purpose of loading the skeleton into the mold and ensuring its accurate positioning. Attached Figure Description

[0014] Figure 1 This is a schematic diagram showing the cooperation between the skeleton feeder, the skeleton to be installed, and the mold provided in this embodiment of the utility model.

[0015] In the attached image:

[0016] 1. Feeder body; 2. Mold; 3. Mold cavity; 4. Boss; 5. Mating cone surface; 6. Protrusion; 7. Frame positioning surface; 8. Frame to be installed; 9. Magnet; 10. Weight reduction cavity; 11. Rounded corner; 12. Guide cone surface; 13. Mounting groove; 14. Concave and convex surfaces. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0018] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0020] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Furthermore, the terms "first" and "second" are merely used to distinguish between different terms in description and do not have any special meaning.

[0022] Please see Figure 1 As shown, this embodiment provides a skeleton feeder, including a feeder body 1. The feeder body 1 is provided with a boss 4 for extending into the mold cavity 3 of the mold 2. The side surface of the boss 4 is a mating conical surface 5 adapted to the cavity wall of the mold cavity 3. A protrusion 6 is provided in the central area of ​​the head end of the boss 4. The side surface of the protrusion 6 and the edge area of ​​the head end of the boss 4 form a skeleton positioning surface 7. The inner edge and one side of the skeleton 8 to be installed on the feeder body 1 abut against the skeleton positioning surface 7 respectively. After entering the mold cavity 3, the skeleton 8 to be installed is heated and expands, so that the skeleton 8 to be installed is interference-fitted with the cavity wall of the mold cavity 3 and separates from the feeder body 1.

[0023] Therefore, through the specially designed profile, it is ensured that the skeleton 8 to be installed is reliably and accurately loaded onto the feeder body 1, and the feeder body 1 matches the mold cavity 3 of the mold 2, so that the skeleton 8 to be installed can be accurately placed in the mold 2. By utilizing the characteristic of the skeleton 8 to be installed expanding due to heat after contacting the mold 2, the skeleton 8 to be installed is transformed into a tight fit with the mold cavity 3 and separated from the feeder body 1, thereby achieving the purpose of loading the skeleton 8 into the mold 2 and ensuring its accurate position.

[0024] Optionally, the skeleton 8 to be installed is made of metal, and a magnet 9 for adsorbing the skeleton 8 is embedded in the edge area of ​​the head end of the boss 4.

[0025] For the metal skeleton 8 to be installed, the magnetic adsorption function can be used to further ensure that the skeleton 8 to be installed is reliably loaded on the feeder body 1, and to prevent the skeleton 8 to be installed from falling off during the process of being placed into the mold 2. It should be noted that the magnetic force of the magnet 9 should not be too large, so as not to affect the separation of the skeleton 8 to be installed from the feeder body 1 in the mold 2.

[0026] Optionally, a weight-reducing cavity 10 is provided on the feeder body 1 and on the opposite side of the boss 4, so as to reduce the material and weight of the feeder body 1 while ensuring structural strength.

[0027] Optionally, the side surface of the boss 4 and its head end, and the side surface of the protrusion 6 and its head end are connected by fillet 11 to reduce contact damage between the feeder body 1 and the mold 2 and the skeleton 8 to be installed during the process of the feeder body 1 entering and exiting the mold cavity 3.

[0028] Optionally, the side surface of the protrusion 6 near its head end is a guide cone surface 12 to facilitate the removal of the skeleton 8 to be installed, so as to facilitate the separation of the skeleton 8 to be installed from the feeder body 1 when the feeder body 1 is removed, thereby reducing the cascading effect on the skeleton 8 to be installed.

[0029] Optionally, the cavity wall surface of the mold cavity 3 is provided with a mounting groove 13 for limiting the skeleton 8 to be installed, so as to ensure that the skeleton 8 to be installed is accurately and stably positioned in the mold 2.

[0030] Furthermore, at least a portion of the surface of the mounting groove 13 is configured as a concave-convex surface 14 to increase the friction between the mounting skeleton 8 and the skeleton to be mounted, especially when the skeleton to be mounted is separated from the feeder body 1, to prevent the skeleton to be mounted from being driven and causing a positional shift.

[0031] Usage process:

[0032] ① The skeleton 8 to be installed is loaded onto the feeder body 1. The positioning surface 7 of the skeleton ensures the positional accuracy of the skeleton 8 to be installed, and the magnet 9 assists in adsorption.

[0033] ②The boss 4 of the feeder body 1 is engaged with the mold cavity 3 of the mold 2 to place the skeleton 8 to be installed into the mold 2;

[0034] ③ After the skeleton 8 to be installed comes into contact with the mold 2, it expands due to heat. The outer edge of the skeleton 8 to be installed is in interference fit with the cavity wall of the mold cavity 3. The inner edge of the skeleton 8 to be installed fails to fit with the protrusion 6. The feeder body 1 is removed, the skeleton 8 to be installed is separated from the feeder body 1, and the skeleton 8 to be installed is installed in place.

[0035] In summary, this skeleton feeder has a simple structure, low cost, and is easy to use, and meets the requirements for placing the skeleton 8 to be installed into the mold 2.

[0036] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A backbone feeder, characterized in that, The device includes a feeder body (1), on which a boss (4) is provided for extending into the mold cavity (3) of the mold (2). The side surface of the boss (4) is a mating cone surface (5) adapted to the cavity wall of the mold cavity (3). A protrusion (6) is provided in the central area of ​​the head end of the boss (4). The side surface of the protrusion (6) and the edge area of ​​the head end of the boss (4) form a skeleton positioning surface (7). The inner edge and one side of the skeleton to be installed on the feeder body (1) abut against the skeleton positioning surface (7) respectively. After the skeleton to be installed enters the mold cavity (3), it expands due to heat, so that the skeleton to be installed (8) is interference-fitted with the cavity wall of the mold cavity (3) and separates from the feeder body (1).

2. The skeletal feeder of claim 1, wherein, The skeleton to be installed (8) is made of metal, and the head edge of the boss (4) is embedded with a magnet (9) for adsorbing the skeleton to be installed (8).

3. The skeletal feeder of claim 1, wherein, A weight-reducing cavity (10) is provided on the main body (1) of the feeder and on the opposite side of the boss (4).

4. The skeletal feeder of claim 1, wherein, The side surface of the boss (4) and the head end of the boss (4), and the side surface of the protrusion (6) and the head end of the protrusion (6) are respectively connected by rounded corners (11).

5. The backbone feeder of claim 1, wherein, The side surface of the protrusion (6) near the head end of the protrusion (6) is a guide cone surface (12) to facilitate the removal of the skeleton (8) to be installed.

6. The skeletal loader of claim 1, wherein, The cavity wall surface of the mold cavity (3) is provided with a mounting groove (13) for limiting the skeleton (8) to be installed.

7. The skeletal feeder of claim 6, wherein, At least a portion of the surface of the mounting groove (13) is configured as a concave-convex surface (14) for increasing the frictional force between the mounting groove (8) and the frame to be mounted.