Double-inclined-surface secondary compression high-speed CPVC (chlorinated polyvinyl chloride) extrusion die
The high-speed CPVC extrusion die with double-bevel secondary compression design solves the problems of diversion lines and uneven inner walls in die production, and achieves smooth inner walls and uniform thickness of CPVC pipes.
Patent Information
- Application Number
- CN202421807833.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-07-29
AI Technical Summary
Existing molds are prone to defects such as flow lines and uneven inner walls when producing CPVC materials, which increases processing difficulty.
The high-speed CPVC extrusion die adopts a double-bevel secondary compression design. Through the combination of the die base, diverter bracket, compression sleeve and die, it realizes the partitioned flow and secondary compression of the CPVC material, eliminates the diverter line, and ensures the smooth inner wall of the pipe.
It effectively eliminates the diversion line, improves the flatness of the inner wall of the CPVC pipe, makes the pipe thickness more uniform, and solves the processing difficulties in ordinary mold production.
Smart Images
Figure CN223395719U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a double-slope secondary compression high-speed CPVC extrusion die. Background Art
[0002] CPVC material has the processing characteristics that it is difficult to adjust the process when produced with ordinary molds. Ordinary molds are prone to defects such as flow lines and uneven inner walls when producing CPVC materials. Utility Model Content
[0003] The utility model provides a double-slope secondary compression high-speed CPVC extrusion die, which includes a die base, a diverter bracket, a compression sleeve and a die. The die base is provided with a feed port, the diverter bracket is provided with an inclined flow channel connected to the feed port, the compression sleeve is provided with a compression flow channel connected to the inclined flow channel, the die is provided with a die core, a forming flow channel is provided between the die core and the die, and the forming flow channel is connected to the compression flow channel.
[0004] In one or more embodiments, the inclined flow channel is provided with a feed hole and a discharge hole, and the feed hole is arranged inclined outwardly toward the discharge hole.
[0005] In one or more embodiments, the compression flow channel is provided with a compression feed port and a compression discharge port, the compression feed port is connected to the discharge hole, and the width of the compression feed port is greater than the width of the compression discharge port.
[0006] In one or more embodiments, the mold base, diverter bracket, compression sleeve and die are screwed together in sequence.
[0007] In one or more embodiments, the diverter bracket is provided with a central portion and an outer circular portion, the flow channel is provided between the central portion and the outer circular portion, and a connecting bridge is provided between the central portion and the outer circular portion.
[0008] In one or more embodiments, a side surface of the feed end of the connecting bridge forms a tip.
[0009] The beneficial effects of this utility model include: After passing through the center-feed die base, the CPVC material flows in zones around the die's circumference, undergoing a primary compression after passing through the inclined diverter bracket. After passing through the diverter bracket, the material enters the shrink sleeve for a secondary compression. This virtually eliminates the diverter lines that form when the CPVC material enters the die, resulting in a more uniform thickness around the circumference and a smoother inner wall. This device addresses the difficulties associated with adjusting the production process for thick CPVC pipes using conventional molds. By utilizing a dual-bevel compression design, it effectively eliminates the diverter lines and uneven inner wall that are common in conventional molds. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 Schematic diagram of the double-slope secondary compression high-speed CPVC extrusion die.
[0011] Figure 2 Schematic diagram of the shunt stent. DETAILED DESCRIPTION
[0012] The present application is further described below with reference to the accompanying drawings:
[0013] See attached Figure 1-2 A double-slope secondary compression high-speed CPVC extrusion die includes a die base 1, a diverter bracket 2, a compression sleeve 3 and a die 4. The die base 1 is provided with a feed port 11, the diverter bracket 2 is provided with an inclined flow channel 21 connected to the feed port 11, the compression sleeve 3 is provided with a compression flow channel 31 connected to the inclined flow channel 21, the die 4 is provided with a die core 5, and a molding flow channel 41 is provided between the die core 5 and the die 4, and the molding flow channel 41 is connected to the compression flow channel 31.
[0014] Furthermore, the inclined flow channel 21 is provided with a feed hole 22 and a discharge hole 23 , and the feed hole 22 is arranged inclined outwardly toward the discharge hole 23 .
[0015] Furthermore, the compression flow channel 31 is provided with a compression feed port 32 and a compression discharge port 33 . The compression feed port 32 is communicated with the discharge hole 23 . The width of the compression feed port 32 is greater than the width of the compression discharge port 33 .
[0016] Furthermore, the die base 1, the diversion bracket 2, the compression sleeve 3 and the die 4 are screwed together in sequence.
[0017] Furthermore, the diverter bracket 2 is provided with a central portion 24 and an outer circular portion 25 , the flow channel 21 is provided between the central portion 24 and the outer circular portion 25 , and a connecting bridge 26 is provided between the central portion 24 and the outer circular portion 25 .
[0018] Furthermore, a tip 27 is formed on the side surface of the feed end of the connecting bridge 26 .
[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.
[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.
[0021] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.
[0022] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.
[0023] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.
[0024] The above preferred embodiments should be regarded as examples of the implementation methods of the present application scheme. Any technical deductions, replacements, improvements, etc. that are identical or similar to the present application scheme or made based on it should be regarded as within the scope of protection of this patent.
Claims
1. A double-slope secondary compression high-speed CPVC extrusion die, characterized in that: It includes a die base, a diverter bracket, a compression sleeve and a mouth die. The die base is provided with a feed port, the diverter bracket is provided with an inclined flow channel connected to the feed port, the compression sleeve is provided with a compression flow channel connected to the inclined flow channel, the mouth die is provided with a die core, a molding flow channel is provided between the die core and the mouth die, and the molding flow channel is connected to the compression flow channel.
2. The double-slope secondary compression high-speed CPVC extrusion die according to claim 1, characterized in that: The inclined flow channel is provided with a feed hole and a discharge hole, and the feed hole is arranged inclined outwardly toward the discharge hole.
3. The double-slope secondary compression high-speed CPVC extrusion die according to claim 1, characterized in that: The compression flow channel is provided with a compression feed port and a compression discharge port. The compression feed port is communicated with the discharge hole. The width of the compression feed port is greater than the width of the compression discharge port.
4. The double-slope secondary compression high-speed CPVC extrusion die according to claim 1, characterized in that: The die base, diversion bracket, compression sleeve and die are screwed together in sequence.
5. The double-slope secondary compression high-speed CPVC extrusion die according to claim 1, characterized in that: The diversion bracket is provided with a central portion and an outer circular portion, the flow channel is provided between the central portion and the outer circular portion, and a connecting bridge is provided between the central portion and the outer circular portion.
6. The double-slope secondary compression high-speed CPVC extrusion die according to claim 5, characterized in that: The side surface of the feed end of the connecting bridge forms a tip.