Extruding machine head for rubber with core
By designing a multi-cavity and flow channel structure for the core rubber extruder head, the problems of cumbersome rubber strip winding and poor flatness in traditional processes have been solved, achieving uniform rubber extrusion and high-quality production of air spring bladders.
Patent Information
- Application Number
- CN202422910235.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-11-28
AI Technical Summary
Traditional rubber belt rolling process is cumbersome, and the flatness of the overlap is not good, which affects the molding quality and production efficiency of air spring bladders.
Design a cored rubber extruder head, comprising a head body, an upper locking cover plate, a lower locking cover plate, an upper die, and a lower die. The rubber pressure is evenly distributed through multiple cavities and flow channel structures to ensure uniform extrusion.
This process achieves uniform rubber extrusion, improves the finished product quality and production efficiency of air spring bladders, simplifies the process, and enhances flatness.
Smart Images
Figure CN223657571U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to rubber forming technical field, especially relate to a core rubber extruder head. BACKGROUND
[0002] The air spring bag is filled with compressed air in the telescopic closed container, and the spring utilizes the air elasticity. In the manufacturing field of the air spring bag, the traditional coiling process method is generally adopted, that is, the rubber belt is overlapped and coiled, and then inflated and plasticized. This method is complicated, the flatness of the overlapped part is poor, and it has a certain influence on the product quality. In the new extrusion or injection process, the core component involved is the machine head for extrusion or injection. The structure design of the machine head is directly related to the product forming quality, especially the uniformity of the bag thickness and the production efficiency. SUMMARY
[0003] In view of the problems mentioned in the background art, the utility model aims to provide a core rubber extruder head to solve the problems mentioned in the background art.
[0004] The above technical purpose of the utility model is realized by the following technical scheme:
[0005] A core rubber extruder head, comprising a head main body, an injection port is formed on one side of the head main body, the head main body is annular, an upper locking cover plate and a lower locking cover plate are detachably connected to the head main body, an upper die is installed between the upper locking cover plate and the head main body, a lower die is installed between the lower locking cover plate and the head main body, an annular outlet is formed between the bottom of the upper die and the lower die, and a plurality of buffer pressure cavities are formed between the upper die, the lower die and the head main body.
[0006] As a preferred technical scheme, a retaining ring is installed on the upper position of the inner wall of the head main body, and the retaining ring is provided with a lug at both ends along the diameter.
[0007] As a preferred technical scheme, the bottom end of the upper die is conical, the top end of the upper die is annular with a larger radius than the middle part, the top end bottom surface of the upper die is in contact with the lug, and the bottom end of the upper die is located below the retaining ring.
[0008] As a preferred technical scheme, the cavity two is formed between the top end bottom surface of the upper die and the top surface of the retaining ring.
[0009] As a preferred technical scheme, the cavity one is formed between the outer wall of the lower die and the inner wall of the head main body.
[0010] As a preferred technical scheme, a plurality of groups of flow channels one are formed through the outer side of the retaining ring, and the cavity one and the cavity two are communicated through the plurality of groups of flow channels one.
[0011] As a preferred technical solution, the lower mouth type is provided with a inwardly convex rectifying slope two at an upper position, the rectifying slope two is a ring around the top end of the lower mouth type, and a cavity three is formed between the rectifying slope two and the bottom surface of the blocking ring.
[0012] As a preferred technical solution, a plurality of groups of flow channels two are provided through the inner side of the blocking ring, and the cavity two and the cavity three are communicated through the plurality of groups of flow channels two.
[0013] As a preferred technical solution, the top end of the upper mouth type is provided with an outwardly convex rectifying slope one, the rectifying slope one is a ring around the top end of the upper mouth type, and a cavity four is formed between the upper wall of the rectifying slope one and the lower wall of the rectifying slope two.
[0014] As a preferred technical solution, the cavity four and the cavity three are communicated.
[0015] Beneficial effects
[0016] The utility model solves the problem of complicated process and poor flatness in traditional process, and directly extrudes the air spring skin bag from the outlet after injecting the rubber from the injection port, which is convenient and fast, and the plurality of cavities are used for shunting and balancing pressure, so that the rubber is uniformly extruded, and the quality of the air spring skin bag product is ensured.
[0017] Additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood through the practice of the utility model. DESCRIPTION OF DRAWINGS
[0018] Figure 1 A three-dimensional structure diagram of a rubber extruder head with a core is proposed for the utility model;
[0019] Figure 2 A structure explosion diagram of a rubber extruder head with a core is proposed for the utility model;
[0020] Figure 3 A front view of a rubber extruder head with a core is proposed for the utility model;
[0021] Figure 4 A right view of a rubber extruder head with a core is proposed for the utility model;
[0022] Figure 5 For Figure 4 Sectional view along A-A direction.
[0023] Mark: 1, head main part; 2, upper mouth type; 3, lower mouth type; 4, upper locking cover plate; 5, lower locking cover plate; 6, injection port; 7, cavity one; 8, cavity two; 9, cavity three; 10, cavity four; 11, cavity five; 12, flow channel one; 13, flow channel two; 14, rectifying slope one; 15, rectifying slope two; 16, outlet. DETAILED DESCRIPTION
[0024] Embodiments of the present application will be described in detail below, examples of which are represented in the drawings, wherein the same or similar symbols represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are only used to explain the present application and cannot be understood as a limitation of the present application.
[0025] Embodiment 1
[0026] Reference Figures 1 to 5 The core rubber extruder head described in the embodiment comprises a head body 1, an injection port 6 is formed on one side of the head body 1, the head body 1 is annular, a baffle ring 101 is installed on the inner wall of the head body 1 at an upper position, the baffle ring 101 is provided with a support ring 102 at each end along the diameter, respectively, an upper locking cover plate 4 and a lower locking cover plate 5 are detachably connected to the head body 1, an upper die 2 is installed between the upper locking cover plate 4 and the baffle ring 101, the bottom end of the upper die 2 is conical, the top end of the upper die 2 is annular with a larger radius than the middle part, the top end bottom surface of the upper die 2 is in contact with the support ring 102, and the bottom end of the upper die 2 is below the baffle ring 101, a lower die 3 is installed between the lower locking cover plate 5 and the baffle ring 101, and a plurality of cavities are formed between the upper die 2, the lower die 3 and the head body 1.
[0027] Preferably, the upper locking cover plate 4 and the lower locking cover plate 5 are both threadedly connected to the head body 1.
[0028] The outer wall of the lower die 3 and the inner wall of the head body 1 form a cavity one 7, the top end bottom surface of the upper die 2 and the top surface of the baffle ring 101 form a cavity two 8, a plurality of flow channels one 12 are formed through the outer side of the baffle ring 101, and the cavity one 7 and the cavity two 8 are communicated through the plurality of flow channels one 12.
[0029] The lower die 3 is provided with an inwardly protruding flow regulating slope two 15 at an upper position, the flow regulating slope two 15 is a ring around the top end of the lower die 3, the flow regulating slope two 15 and the bottom surface of the baffle ring 101 form a cavity three 9, a plurality of flow channels two 13 are formed through the inner side of the baffle ring 101, and the cavity two 8 and the cavity three 9 are communicated through the plurality of flow channels two 13.
[0030] The bottom end of the upper die 2 is provided with an outwardly protruding flow regulating slope one 14, the flow regulating slope one 14 is a ring around the bottom end of the upper die 2, the flow regulating slope one 14 upper wall and the flow regulating slope two 15 lower wall form a cavity four 10, and the cavity four 10 and the cavity three 9 are communicated.
[0031] The gap between the inner walls of the bottom end of the upper die 2 and the bottom end of the lower die 3 forms an outlet 16.
[0032] The rubber mainly concentrates pressure in the injection port 6 and the intersection area opposite to the injection port 6 after entering the chamber one 7, so the chamber one 7 is separated from the cavity two 8 by arranging the baffle ring 101, and the chamber one 7 is staggered with the cavity three 9 by arranging the flow channel one 12 and the flow channel two 13, so that the rubber is uniformly distributed in the chamber one 7 and the cavity three 9 to form a ring; the rectifier slope one 14 and the rectifier slope two 15 make the pressure dispersed and balanced, and the rubber flows through the cavity one 7, the flow channel one 12, the cavity two 8, the flow channel two 13, the cavity three 9, the cavity four 10 and the cavity five 11 in sequence, and finally uniformly flows out from the outlet 16 and is attached to the mandrel inserted into the center of the head main body 1.
[0033] It should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0034] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.
[0035] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication or interaction relationship of two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0036] In the utility model, unless another definite provision and limitation, first feature is on second feature "on" or "under" can be first and second feature direct contact, or first and second feature indirectly contact through intermediate medium. Moreover, first feature is on second feature "on", "above" and "on" can be first feature is on second feature directly or obliquely, or only indicate first feature horizontal height is higher than second feature. First feature is on second feature "under", "below" and "under" can be first feature is on second feature directly or obliquely, or only indicate first feature horizontal height is less than second feature.
[0037] The above merely describes a preferred specific embodiment of the present application, but the scope of protection of the present application is not limited to this. Any person skilled in the art, within the technical range disclosed by the present application, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or changes, should be covered within the scope of protection of the present application.
Claims
1. A cored rubber extruder head, comprising a head body (1), wherein an injection port (6) is provided on one side of the head body (1), characterized in that: The machine head body (1) is ring-shaped. The upper locking cover plate (4) and the lower locking cover plate (5) are detachably connected to the upper and lower parts of the machine head body (1). An upper opening (2) is installed between the upper locking cover plate (4) and the machine head body (1), and a lower opening (3) is installed between the lower locking cover plate (5) and the machine head body (1). An annular outlet (16) is formed between the bottom of the upper opening (2) and the lower opening (3). Multiple pressure-buffering cavities are formed between the upper opening (2), the lower opening (3) and the machine head body (1).
2. The core-belt rubber extruder head according to claim 1, characterized in that: A retaining ring (101) is installed on the upper part of the inner wall of the machine head body (1), and a support ring (102) is provided at both ends of the diameter of the retaining ring (101).
3. The core-belt rubber extruder head according to claim 2, characterized in that: The bottom of the upper opening (2) is conical, and the top of the upper opening (2) is an annular shape with a radius greater than that of the middle part. The bottom surface of the top of the upper opening (2) is in contact with the support ring (102), and the bottom of the upper opening (2) is located below the retaining ring (101).
4. The core-belt rubber extruder head according to claim 3, characterized in that: A cavity 2 (8) is formed between the top bottom surface of the upper mouth (2) and the top surface of the retaining ring (101).
5. The core-belt rubber extruder head according to claim 4, characterized in that: A cavity (7) is formed between the outer wall of the lower opening (3) and the inner wall of the head body (1).
6. The core-belt rubber extruder head according to claim 5, characterized in that: Multiple flow channels (12) are opened through the outer side of the retaining ring (101), and the cavity one (7) and the cavity two (8) are connected through multiple flow channels (12).
7. The core-belt rubber extruder head according to claim 4, characterized in that: A rectifier slope 2 (15) protruding inward is provided at the upper part of the lower opening (3). The rectifier slope 2 (15) is a ring that surrounds the top of the lower opening (3). A cavity 3 (9) is formed between the rectifier slope 2 (15) and the bottom surface of the retaining ring (101).
8. The core-belt rubber extruder head according to claim 7, characterized in that: Multiple sets of flow channels 2 (13) are opened through the inner side of the retaining ring (101), and the cavity 2 (8) and cavity 3 (9) are connected by multiple sets of flow channels 2 (13).
9. The cored rubber extruder head according to claim 7 or 8, characterized in that: The bottom of the upper opening (2) is provided with an outwardly protruding rectifier slope one (14), which is a ring around the bottom of the upper opening (2). A cavity four (10) is formed between the upper wall of the rectifier slope one (14) and the lower wall of the rectifier slope two (15).
10. The cored rubber extruder head according to claim 9, characterized in that: Cavity 4 (10) and Cavity 3 (9) are connected.