Rubber pressurizing and mixing mold
By designing a rubber pressure mixing mold and utilizing a conical channel for pressure mixing, the problem of insufficient interfacial bonding strength in fluid rubber mixing molds was solved, thus achieving uniformity and consistency in rubber mixing.
Patent Information
- Application Number
- CN202423010360.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-06
AI Technical Summary
In traditional fluid rubber mixing molds, it is difficult to guarantee the interfacial bonding strength between different materials during the mixing and molding process, which can easily lead to delamination or detachment, and poor mixing uniformity and consistency.
A rubber pressure mixing mold is used, and the two types of rubber are pressure mixed through the first and second discharge annular channels. The conical structure is used to achieve pressure mixing of the two types of rubber, thereby increasing the bonding strength.
It improves the bonding strength between the two types of rubber, ensures uniform mixing and product consistency, and solves the problems of delamination and peeling.
Smart Images
Figure CN223604967U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a variety of liquid rubber mixing technical field especially relates to a rubber pressure mixing mould. BACKGROUND
[0002] In the traditional liquid rubber forming process, a single rubber material is often used, or different rubber materials are mixed by manual method before forming. This method is not only inefficient, but also difficult to ensure the uniformity of mixing and the consistency of products. Secondly, in the mixing and forming process of the existing liquid rubber mixing mould, the interfacial bonding strength between different materials is difficult to guarantee, and problems such as delamination or falling off are prone to occur. SUMMARY
[0003] The utility model discloses a rubber pressure mixing mould, which solves the problem of delamination or falling off of some liquid rubber mixing moulds in the mixing and forming process.
[0004] The technical scheme of the utility model is as follows:
[0005] A rubber pressure mixing mould comprises a middle mould and a movement core arranged in the installation cavity of the middle mould, wherein the front end of the movement core penetrates through the middle mould, and an outer mould is sleeved on the front end of the movement core penetrating through the middle mould; the front end of the movement core comprises a first extrusion inner wall and a second extrusion inner wall, the bottom of the installation cavity of the middle mould is provided with a first discharge ring, a first discharge ring air passage is formed between the second extrusion inner wall and the first discharge ring, and a second discharge ring air passage is formed between the first extrusion inner wall and a second discharge ring on the outer mould; wherein first rubber is filled into the installation cavity, extruded through the first discharge ring air passage, mixed with second rubber in a mixing cavity in the outer mould, and extruded through the second discharge ring air passage after mixing.
[0006] Optionally, the installation cavity is a tapered chamber, and the end with a smaller opening is in communication with the first discharge ring.
[0007] Optionally, the diameter of the first discharge ring is 45±0.05 mm, and the diameter of the second extrusion inner wall of the movement core is 43.5±0.05 mm.
[0008] Optionally, the diameter of the first extrusion inner wall is 40±0.05 mm, and the diameter of the second discharge ring is 43±0.05 mm.
[0009] Optionally, the mixing cavity is a tapered chamber, and the end with a smaller opening is in communication with the second discharge ring.
[0010] Optionally, the discharge end of the middle mould is an arc surface, and there is a gap between the arc surface and the outer mould.
[0011] The rubber pressure mixing mold has the advantages that:
[0012] The rubber pressure mixing mold has the advantages that:
[0013] The principle of the first discharge annular channel pressure is that the installation cavity is a conical body, and the cross section from the feeding to the discharging is from large to small, thereby realizing the pressure extrusion of the first rubber in the first discharge annular channel. BRIEF DESCRIPTION OF DRAWINGS
[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments, and obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.
[0015] Figure 1 The rubber pressure mixing mold has the advantages that:
[0016] Figure 2 The rubber pressure mixing mold has the advantages that:
[0017] Figure 3 The rubber pressure mixing mold has the advantages that:
[0018] Figure 4 The rubber pressure mixing mold has the advantages that:
[0019] Corresponding description of the drawings:
[0020] 1- middle mold; 11- installation cavity; 12- first discharge ring; 2- machine core; 21- first extrusion inner wall; 22- second extrusion inner wall; 3- outer mold; 31- mixing cavity; 32- second discharge ring. DETAILED DESCRIPTION
[0021] The technical solutions of the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application, and obviously, the described embodiments are only some embodiments of the present application, not all the embodiments.
[0022] In the description of the utility model, it is understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. Embodiment
[0023] As shown in Figures 1-4 The utility model provides a rubber pressure mixing mould, it includes: middle mould 1 and the machine core 2 of setting in the installation cavity 11 of middle mould 1, wherein the front end of machine core 2 passes through middle mould 1, and the front end of machine core 2 is sleeved with outer mould 3 on the front end of passing through middle mould 1, wherein middle mould 1, machine core 2 and outer mould 3 are all similar cylindrical shape;
[0024] The front end of machine core 2 includes first extrusion inner wall 21 and second extrusion inner wall 22, the bottom of installation cavity 11 of middle mould 1 is equipped with first discharge ring 12, and first discharge ring empty passage is formed between second extrusion inner wall 22 and first discharge ring 12, installation cavity 11 is conical chamber, and the small end of opening is communicated with first discharge ring 12, and second discharge ring empty passage is formed between first extrusion inner wall 21 and second discharge ring 32 on outer mould 3;
[0025] Wherein, first rubber fills in installation cavity 11, and is extruded by first discharge ring empty passage pressure, and is mixed with second rubber in mixing cavity 31 in outer mould 3, and is extruded by second discharge ring empty passage pressure after mixing, and mixing cavity 31 is conical chamber, and the small end of opening is communicated with second discharge ring 32.
[0026] In the embodiment, the diameter of the first discharge ring is preferably 45±0.05mm, the diameter of the second extrusion inner wall 22 of the machine core 2 is 43.5±0.05mm; the diameter of the first extrusion inner wall 21 is 40±0.05mm, and the diameter of the second discharge ring 32 is 43±0.05mm.
[0027] In the embodiment, the first rubber is mixed with the second rubber in the mixing cavity 31 by the first discharge ring empty passage pressure, and the mixed rubber is extruded by the second discharge ring empty passage pressure for secondary pressure mixing, thereby increasing the bonding strength of the two rubbers.
[0028] Wherein, the principle of first discharge ring empty passage pressure is as follows: Figure 1 As shown in the figure, the installation cavity 11 is a conical body, and the cross section from feeding to discharging decreases from large to small, thereby realizing the extrusion of the first rubber in the first discharge ring empty passage.
[0029] The principle of pressurizing the first discharge annular channel is that the mixing cavity 31 is also a conical body, the feeding section to the discharge section is gradually narrowed from large to small, thereby realizing secondary pressurizing mixing in the second discharge annular channel.
[0030] Secondly, the discharge end of the middle mold 1 is an arc surface and there is a gap between the middle mold 1 and the outer mold 3, the discharge end of the middle mold 1 is an arc surface for cooperating with the conical mixing cavity 31, and the second rubber flows in.
[0031] The above merely describes the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.
Claims
1. A rubber pressure mixing mold, characterized in that, The utility model relates to a middle mould (1) and the machine core (2) of setting in the installation cavity (11) of middle mould (1), wherein the front end of machine core (2) passes through middle mould (1), and the front end of machine core (2) is sleeved with outer mould (3) on the front end of middle mould (1); The front end of machine core (2) includes first extrusion inner wall (21) and second extrusion inner wall (22), the bottom of installation cavity (11) of middle mould (1) is equipped with first discharge ring (12), and first discharge ring empty passage is formed between second extrusion inner wall (22) and first discharge ring (12), and second discharge ring empty passage is formed between first extrusion inner wall (21) and second discharge ring (32) on outer mould (3); Wherein, first rubber fills in installation cavity (11), and is extruded under pressure through first discharge ring empty passage, and is mixed with second rubber in mixing cavity (31) in outer mould (3), and is extruded under pressure through second discharge ring empty passage after mixing. The installation cavity (11) is a tapered chamber, and the smaller end is communicated with the first discharge ring (12).
2. A rubber press molding die according to claim 1, wherein The diameter of the first discharge ring is 45±0.05mm, and the diameter of the second extrusion inner wall (22) of the machine core (2) is 43.5±0.05mm.
3. A rubber press molding die according to claim 2, wherein The diameter of the first extrusion inner wall (21) is 40±0.05mm, and the diameter of the second discharge ring (32) is 43±0.05mm.
4. A rubber press molding die according to claim 3, wherein The mixing cavity (31) is a tapered chamber, and the smaller end is communicated with the second discharge ring (32).
5. A rubber press molding die according to claim 4, wherein The discharge end of the middle mould (1) is a curved surface, and there is a gap between the middle mould (1) and the outer mould (3).
6. A rubber press molding die according to claim 5, wherein