Shock absorber rubber mold

Abstract

The utility model relates to a rubber mold for a shock absorber. The middle mold is provided with a conical cavity; the outer wall of the split core assembly is matched with the lapping surface of the conical cavity, and the shock absorber upper cover and the base are vertically placed in a cavity formed by the inner wall of the split core assembly; the loose cores comprise a first loose core and a second loose core, the first loose core and the second loose core are both provided with grooves, the grooves are used for being matched with convex columns in the upper cover of the shock absorber, each loose core is divided into an upper loose core and a lower loose core by the grooves, and the first loose core and the second loose core are vertically arranged between the upper cover of the shock absorber and the base; wherein a vulcanization cavity is defined by the inner wall of the split core assembly, the shock absorber upper cover, the base and the loose core. According to the utility model, the outer wall of the split core assembly is matched with the lapping surface of the conical cavity arranged on the middle mold, so that the split core assembly, the upper cover of the shock absorber and the base are quickly positioned; the structure of the valve core assembly is simplified, and the production cost is reduced; the upper core pulling and the lower core pulling are beneficial to product demolding, and the qualified rate of products is increased.

Description

Technical Field

[0001] This utility model relates to the field of metal rubber product manufacturing technology, and in particular to a vibration damper rubber mold. Background Technology

[0002] Vibration dampers are a crucial component of a certain type of destroyer. They function to support the weight of the gas turbine, ensuring its power output transmission. They also provide noise and vibration isolation for the gas turbine structure and, under certain conditions, offer shock protection. Vibration dampers have a complex structure, composed of multiple components including a metal frame, elastic rubber, disc springs, metal wire mesh, and nylon. In rubber-metal vibration dampers, vulcanized rubber has a wide elastic range and its loss characteristics are far greater than those of metal materials, resulting in better vibration damping and reducing the system's resonant frequency band.

[0003] Currently, rubber vibration dampers are widely used, but most molding molds still use traditional horizontal frame molding molds, which have complex mold structures, long mold processing cycles, high mold processing costs, and complicated vulcanization molding processes.

[0004] Therefore, it is necessary to improve one or more of the problems existing in the above-mentioned related technical solutions.

[0005] It should be noted that this section is intended to provide background or context for the technical solutions of this utility model as set forth in the claims. The description herein does not constitute an admission that it is prior art simply because it is included in this section. Utility Model Content

[0006] The purpose of this utility model embodiment is to provide a vibration damper rubber mold, thereby overcoming at least to some extent one or more problems caused by the limitations and defects of related technologies.

[0007] This utility model embodiment provides a vibration damper rubber mold, including:

[0008] A horizontally positioned lower mold, a vertically positioned segmented core assembly placed on the lower mold, a core-pulling assembly located within the segmented core assembly, a middle mold fitted outside the segmented core assembly and positioned between the lower and upper molds, and a material cavity located below the upper mold;

[0009] The intermediate mold is provided with a conical cavity;

[0010] The outer wall of the segmented core assembly mates with the conical cavity surface, and the upper cover and base of the shock absorber are vertically placed in the cavity formed by the inner wall of the segmented core assembly.

[0011] The core puller includes a first core puller and a second core puller. Both the first core puller and the second core puller are provided with grooves. The grooves are used to match the protrusions in the upper cover of the shock absorber. Each core puller is divided into an upper core puller and a lower core puller by the groove. The first core puller and the second core puller are vertically arranged between the upper cover of the shock absorber and the base.

[0012] The inner wall of the split core assembly, the upper cover and base of the shock absorber, and the core puller form a vulcanized cavity.

[0013] In one embodiment of this utility model, the segmented core assembly includes:

[0014] The first segmented core has an inner wall profile that matches the outer wall profile of the shock absorber cover.

[0015] The second segmented core has an inner wall profile that matches the inner wall profile of the damper base.

[0016] The third segmented core, the two third segmented cores connect the first segmented core and the second segmented core to form a cavity in which the shock absorber top cover and base are placed vertically, and the two third segmented cores, the shock absorber top cover and base and the core puller form the vulcanized cavity.

[0017] In one embodiment of this utility model, the outer wall of the segmented core assembly and the conical cavity are fitted together with a 2-15 degree lamination surface.

[0018] In one embodiment of this utility model, the lower end face of the side wall of the middle mold is provided with a pin hole, and a guide pin is provided on the lower mold corresponding to the pin hole.

[0019] In one embodiment of this utility model, the intermediate mold is cylindrical, and the intermediate mold has a conical cavity along its longitudinal direction.

[0020] In one embodiment of the present invention, the upper surface of the material cavity is provided with a first circular groove, the first circular groove matches the boss on the lower surface of the upper mold, the lower surface of the material cavity is provided with a first circular boss, and a plurality of through material holes are provided between the first circular groove and the first circular boss.

[0021] In one embodiment of the present invention, a boss is provided on the side wall of the upper end face of the middle mold to form a second circular groove. The first circular boss matches the second circular groove, and the side wall of the first circular boss and the inner wall of the second circular groove are mated together.

[0022] In one embodiment of this utility model, the lower end face of the middle mold is provided with a second circular boss on the side wall, and the upper surface of the lower mold is provided with a third circular groove. The second circular boss matches the third circular groove, and the outer wall of the second circular boss is mated with the inner wall of the third circular groove.

[0023] In one embodiment of this utility model, the segmented core assembly is provided with a mounting hole, the mounting hole is connected to an anti-rotation pin, the material cavity is provided with an anti-rotation hole, and the anti-rotation pin is inserted into the anti-rotation hole so that the material hole corresponds to the vulcanization cavity.

[0024] In one embodiment of this utility model, the end of the upper core puller away from the lower core puller is provided with a connecting hole, which is used to connect the core puller tool.

[0025] The technical solution provided by one embodiment of this utility model may include the following beneficial effects:

[0026] This utility model provides a rubber mold for a shock absorber. On the one hand, the outer wall of the segmented core assembly fits with the conical cavity of the middle mold, enabling the segmented core assembly and the shock absorber cover and base disposed within the segmented core assembly to be quickly positioned. On the other hand, the shock absorber cover and base are vertically placed within the cavity formed by the inner wall of the segmented core assembly, simplifying the structure of the core assembly and reducing production costs. Furthermore, by dividing each core puller into upper and lower core pullers at the groove, it is more conducive to product demolding and improves the product qualification rate. Attached Figure Description

[0027] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments conforming to the present invention and, together with the description, serve to explain the principles of the present invention. It is obvious that the drawings described below are merely some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0028] Figure 1 This diagram shows a cross-sectional view of the rubber mold for the vibration damper in an exemplary embodiment of the present invention.

[0029] Figure 2 This shows a top view of the vibration damper rubber mold in an exemplary embodiment of the present invention;

[0030] Figure 3 This diagram illustrates the structure of the segmented core assembly in an exemplary embodiment of the present invention.

[0031] Figure 4 This diagram illustrates the core-pulling structure in an exemplary embodiment of the present invention.

[0032] Figure 5 This diagram illustrates the structure of the rubber support for the shock absorber in an exemplary embodiment of the present invention.

[0033] Reference numerals: 100, upper mold; 200, material cavity; 300, segmented core assembly; 301, first segmented core; 302, second segmented core; 303, third segmented core; 304, anti-rotation pin; 400, middle mold; 500, lower mold; 501, guide pin; 600, first core puller; 601, first upper core puller; 602, first lower core puller; 700, second core puller; 701, second upper core puller; 702, second lower core puller; 800, core puller fixture. Detailed Implementation

[0034] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, they are provided to make the present invention more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0035] Furthermore, the accompanying drawings are merely illustrative diagrams of embodiments of the present invention and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted. Some block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically independent entities.

[0036] This example embodiment provides a vibration damper rubber mold, see reference. Figure 1 As shown, the vibration damper rubber mold may include: an upper mold 100, a material cavity 200, a split core assembly 300, a middle mold 400, a lower mold 500, a first core puller 600, and a second core puller 700.

[0037] Among them, the lower mold 500 is set horizontally, the segmented core assembly 300 is set vertically and placed on the lower mold 500, the core puller is set inside the segmented core assembly 300, the middle mold 400 is sleeved outside the segmented core assembly 300 and set between the lower mold 500 and the upper mold 100, and the material cavity 200 is set below the upper mold 100.

[0038] The intermediate mold 400 is provided with a conical cavity;

[0039] The outer wall of the segmented core assembly 300 is fitted with the conical cavity surface, and the upper cover and base of the shock absorber are vertically placed in the cavity formed by the inner wall of the segmented core assembly 300.

[0040] The core puller includes a first core puller 600 and a second core puller 700. Both the first core puller 600 and the second core puller 700 are provided with grooves. The grooves are used to match the protrusions in the upper cover of the shock absorber. Each core puller is divided into an upper core puller and a lower core puller by the groove. The first core puller 600 and the second core puller 700 are vertically arranged between the upper cover of the shock absorber and the base.

[0041] The inner wall of the split core assembly 300, the upper cover and base of the shock absorber, and the core puller form a vulcanized cavity.

[0042] It should be understood that the core puller includes a first core puller 600 and a second core puller 700. Both the first core puller 600 and the second core puller 700 are provided with grooves. The grooves are used to match the protrusions in the upper cover of the shock absorber. Each core puller is divided into an upper core puller and a lower core puller by the groove. The first core puller 600 is divided into a first upper core puller 601 and a first lower core puller 602, and the second core puller 700 is divided into a second upper core puller 701 and a second lower core puller 702.

[0043] The aforementioned vibration damper rubber mold offers several advantages. First, the outer wall of the segmented core assembly 300 mates with the conical cavity of the middle mold 400, enabling rapid positioning of the segmented core assembly 300 and the vibration damper cover and base within it. Second, the vertical placement of the vibration damper cover and base within the cavity formed by the inner wall of the segmented core assembly 300 simplifies the core assembly structure and reduces production costs. Third, the segmentation of each core puller into upper and lower core pullers at the groove facilitates product demolding and improves product qualification rates.

[0044] The following will refer to Figures 1 to 5 The various parts of the above-described shock absorber rubber mold in this example embodiment will be described in more detail.

[0045] In one embodiment, the segmented core assembly 300 includes:

[0046] The first segment core 301 has an inner wall profile that matches the outer wall profile of the shock absorber cover.

[0047] The second segmented core 302 has an inner wall profile that matches the inner wall profile of the shock absorber base.

[0048] The third segmented core 303 connects the first segmented core 301 and the second segmented core 302, forming a cavity for vertically placing the damper cover and base. The two third segmented cores 303, together with the damper cover, base, and the core-pulling mechanism, form the vulcanized cavity. It should be understood that the vertical placement of the damper cover and base within the cavity formed by the inner wall of the segmented core assembly 300 simplifies the structure of the first segmented core 301, second segmented core 302, and third segmented core 303. It should also be understood that the first segmented core 301, second segmented core 302, and third segmented core 303 constitute the segmented core assembly 300, which has a frustum-shaped shape. The side of the frustum aligns with the conical cavity mating surface of the intermediate mold 400.

[0049] In one embodiment, the outer wall of the segmented core assembly 300 and the conical cavity are fitted with a mating surface at an angle of 2 to 15 degrees. It should be understood that during the slow mold closing process, under the action of the closing force, the middle mold 400 drives the middle segmented core assembly 300 and the skeleton placed within the segmented core assembly 300 to automatically adjust to the center position of the mold.

[0050] In one embodiment, the lower end face of the side wall of the middle mold 400 is provided with a pin hole, and the lower mold 500 is provided with a guide pin 501 corresponding to the pin hole. It should be understood that, under the action of the mold closing force, the middle mold 400 follows the guiding direction of the guide pin 501, and the two guide pins 501 have the function of guiding and preventing damage to the mold.

[0051] In one embodiment, the intermediate mold 400 is cylindrical and has a conical cavity along its longitudinal direction. The upper surface of the material cavity 200 has a first circular groove that matches a boss on the lower surface of the upper mold 100. The lower surface of the material cavity 200 also has a first circular boss, and several through-holes are provided between the first circular groove and the first circular boss. The sidewall of the upper end face of the intermediate mold 400 has a boss forming a second circular groove. The first circular boss matches the second circular groove, and the sidewall of the first circular boss mates with the inner wall of the second circular groove. It should be understood that the intermediate mold 400 is cylindrical and has a conical cavity along its longitudinal direction. The mating surface of the intermediate mold 400 is smaller at the top and larger at the bottom to facilitate the insertion of the segmented core assembly 300. The mating surface of the first circular boss and the inner wall of the second circular groove improves the assembly accuracy of the mold.

[0052] In one embodiment, the lower end face of the intermediate mold 400 has a second circular boss on its sidewall, and the upper surface of the lower mold 500 has a third circular groove. The second circular boss matches the third circular groove, and the outer wall of the second circular boss mates with the inner wall of the third circular groove. It should be understood that the mating of the outer wall of the second circular boss on the lower end face of the intermediate mold 400 with the third circular groove on the upper surface of the lower mold 500 further improves the assembly accuracy of the mold.

[0053] In one embodiment, the segmented core assembly 300 has mounting holes, and anti-rotation pins 304 are connected to the mounting holes. The material cavity 200 has anti-rotation holes, and the anti-rotation pins 304 are inserted into the anti-rotation holes to align the material holes with the vulcanization cavities. It should be understood that by inserting the anti-rotation pins 304 into the anti-rotation holes to align the material holes with the vulcanization cavities, the vulcanized rubber can be precisely flowed into the vulcanization cavities during the vulcanization process.

[0054] In one embodiment, a connecting hole is provided at the end of the upper core pull away from the lower core pull, the connecting hole being used to connect the core pull tooling 800. It should be understood that traditional core pull designs are relatively complex, requiring the design of a positioning part that mates with the lower mold 500, resulting in high processing difficulty and cost. Because the core pull mates with a vibration damper, a groove is provided in the middle of the core pull, the groove being used to match the protrusion inside the vibration damper's upper cover. The groove of the core pull has a portion larger than both ends, making it impossible to directly remove the core pull. Each core pull is segmented into an upper core pull and a lower core pull by the groove. The first core pull 600 is divided into a first upper core pull 601 and a first lower core pull 602, and the second core pull 700 is divided into a second upper core pull 701 and a second lower core pull 702. Dividing the core pull into four parts simplifies the core pull design, reduces costs, and facilitates product demolding, improving the product qualification rate.

[0055] Usage process:

[0056] The shock absorber consists of a shock absorber body, a central isolation rubber ring, side isolation rubber rings, a central screw, side screws, a bottom transverse isolation block, a central rubber buffer block, a bottom buffer round pad, a bottom anti-compression rubber pad, a disc spring, a sealing plate, a central isolation nylon ring, side isolation nylon rings, a top mounting screw, and an adjusting nut. The shock absorber body is formed by vulcanizing the shock absorber top cover, the shock absorber base, and the rubber body together. Before vulcanization, the shock absorber top cover is sandblasted using a special sandblasting fixture, and the shock absorber base is sandblasted using a special sandblasting fixture. After sandblasting, the sand on the surface of the metal frame is cleaned, and finally, the residual sand on the surface of the metal frame is cleaned with alcohol. Simultaneously, semi-finished rubber material is prepared in advance, and the semi-finished material is extruded into a special nozzle and loaded into an extruder to extrude the pre-finished rubber material.

[0057] The mold adopts a vertical frame structure. First, install the upper cover and base of the shock absorber into the middle position of the lower mold 500, and adjust the distance between them. Then, install the first lower core puller 602 and the second lower core puller 702 between the upper cover and the base of the shock absorber, and adjust the distance between the upper cover and the base of the shock absorber to ensure they are in close contact with the first lower core puller 602 and the second lower core puller 702. Use the core puller tool 800 to screw into the threaded holes of the first upper core puller 601 and the second upper core puller 701. Then, use the core puller tool 800 to install the first upper core puller 601 and the second upper core puller 701 into their corresponding positions between the upper cover and the base of the shock absorber. The main function of the core-pulling mechanism is sealing. Then, the split core assembly 300 is pushed in laterally. To facilitate the installation of the shock absorber top cover and base into the middle mold 400 and demolding after the product has fully vulcanized, the split core assembly 300 consists of a first split core 301, a second split core 302, and two third split cores 303. After installation, the metal frame and the split core assembly 300 are adjusted to be roughly centered in the lower mold 500. The middle mold 400 is then installed, with the inner wall of the middle mold 400 flush with the outer wall of the split core assembly 300 at an angle of 2-15 degrees. The mating surfaces of the middle mold 400 are fitted together, with the upper surface smaller and the lower surface larger to facilitate the insertion of the segmented core assembly 300. Two pin holes on the side wall of the lower end face of the middle mold 400 are aligned with two guide pins 501 of the lower mold 500. The pre-prepared semi-finished rubber compound is then loaded into the vulcanization cavity, ensuring it does not protrude above the upper surface of the metal frame. Next, the mating surfaces of the material cavity 200 are fitted onto the middle mold 400. The material outlet and vulcanization cavity are aligned via anti-rotation pins 304 and anti-rotation holes. A rubber sheet is then inserted into the groove of the material cavity 200, and the upper mold 100 is closed. This product requires a large amount of rubber; using a separate filling method can easily lead to insufficient rubber. If a pressure-filling method is used, the injection cavity design is relatively large, and the injection is slow and difficult to fill completely. Switch the flat vulcanizing machine to manual mode and slowly close the mold. Under the action of the mold closing force, the middle mold 400 and the lower mold 500 are properly mated and closed in the direction guided by the guide pin 501. At the same time, the middle mold 400 drives the middle segmented core assembly 300 and the skeleton placed in the segmented core assembly 300 to automatically adjust to the center position of the mold.

[0058] It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" in the above description indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model 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. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0059] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0060] In the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., 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 according to the specific circumstances.

[0061] In this embodiment of the 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.

[0062] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "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 present 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. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0063] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the appended claims.

Claims

1. A rubber mold for a shock absorber, comprising a horizontally arranged lower mold, a vertically arranged segmented core assembly placed on the lower mold, a core puller disposed within the segmented core assembly, an intermediate mold sleeved around the segmented core assembly and disposed between the lower mold and the upper mold, and a material cavity disposed below the upper mold, characterized in that: The intermediate mold is provided with a conical cavity; The outer wall of the segmented core assembly mates with the conical cavity surface, and the upper cover of the vibration damper and the base of the vibration damper are vertically placed in the cavity formed by the inner wall of the segmented core assembly. The core puller includes a first core puller and a second core puller. Both the first core puller and the second core puller are provided with grooves. The grooves are used to match the protrusions in the upper cover of the shock absorber. Each core puller is divided into an upper core puller and a lower core puller by the groove. The first core puller and the second core puller are vertically arranged between the upper cover of the shock absorber and the base of the shock absorber. The inner wall of the split core assembly, the upper cover of the shock absorber, the base of the shock absorber, and the core puller together form a vulcanized cavity.

2. The shock absorber rubber mold according to claim 1, characterized in that, The segmented core assembly includes: The first segmented core has an inner wall profile that matches the outer wall profile of the shock absorber cover. The second segmented core has an inner wall profile that matches the inner wall profile of the damper base. The third segmented core, the two third segmented cores connect the first segmented core and the second segmented core to form a cavity in which the shock absorber top cover and base are placed vertically, and the two third segmented cores, the shock absorber top cover and the shock absorber base and the core puller form the vulcanized cavity.

3. The damper rubber mold according to claim 1, characterized in that, The outer wall of the segmented core assembly and the conical cavity are fitted together with a 2-15 degree lamination surface.

4. The damper rubber mold according to claim 1, characterized in that, The lower end face of the side wall of the middle mold is provided with a pin hole, and a guide pin is provided on the lower mold corresponding to the pin hole.

5. The damper rubber mold according to claim 1, characterized in that, The intermediate mold is cylindrical, and the intermediate mold has a conical cavity along its longitudinal direction.

6. The damper rubber mold according to claim 5, characterized in that, The upper surface of the material cavity is provided with a first circular groove, which matches the boss on the lower surface of the upper mold. The lower surface of the material cavity is provided with a first circular boss, and a plurality of through material holes are provided between the first circular groove and the first circular boss.

7. The damper rubber mold according to claim 6, characterized in that, The upper end face of the middle mold has a boss on its side wall, forming a second circular groove. The first circular boss matches the second circular groove, and the side wall of the first circular boss and the inner wall of the second circular groove are mated together.

8. The damper rubber mold according to claim 7, characterized in that, The lower end face of the middle mold is provided with a second circular boss on the side wall, and the upper surface of the lower mold is provided with a third circular groove. The second circular boss matches the third circular groove, and the outer wall of the second circular boss is mated with the inner wall of the third circular groove.

9. The damper rubber mold according to claim 8, characterized in that, The segmented core assembly is provided with mounting holes, and anti-rotation pins are connected to the mounting holes. Anti-rotation holes are provided on the material cavity, and the anti-rotation pins are inserted into the anti-rotation holes to make the material holes correspond to the vulcanization cavities.

10. The damper rubber mold according to claim 1, characterized in that, The upper core puller has a connecting hole at the end away from the lower core puller, and the connecting hole is used to connect the core puller tool.

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