Extrusion color gradient device based on three-dimensional net structure body
By introducing a static stirring device and a high-precision metering system into the extruder, the problems of inaccurate feed control and uneven mixing in color gradient are solved, an efficient color gradient effect is achieved, and product quality and temperature control accuracy are improved.
Patent Information
- Application Number
- CN202422638524.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-10-31
AI Technical Summary
When existing extrusion equipment achieves color gradient, the feed speed and ratio control of pigments or masterbatches are not precise enough, the mixing process is not sufficient, and the temperature control is improper, resulting in uneven color transition, affecting product quality and appearance.
The extrusion device adopts a three-dimensional network structure, including a static stirring device, multiple feed channels, a high-precision metering device for the discharge port and an independent temperature control module. The spiral blade structure reduces the flow rate, ensures the uniformity of pigment mixing and temperature accuracy, and achieves stable color gradient.
It achieves a uniform and stable color gradient effect, improves production efficiency and product quality, and ensures the accuracy of color matching and precision of temperature control.
Smart Images
Figure CN223354871U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of extrusion molding equipment, and in particular relates to an extrusion color gradient device based on a three-dimensional network structure. Background Art
[0002] During plastic extrusion processing, it's often necessary to achieve a color gradient effect to meet diverse product appearance requirements. However, existing extrusion equipment faces the following challenges in achieving this color gradient: inaccurate control of the pigment or masterbatch feed rate and ratio leads to uneven color transitions; inadequate mixing affects color consistency and stability; and improper control of parameters such as temperature during extrusion makes it difficult to achieve the desired product quality and appearance. Utility Model Content
[0003] The purpose of the utility model is to provide a device for extruding color gradient based on a three-dimensional network structure, which can achieve a uniform and stable color gradient effect.
[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0005] A device for extruding color gradient based on a three-dimensional network structure includes an extruder barrel, a feed port, a feed channel, a screw, a drive device, a spinneret, and a discharge port. The feed port is arranged at the upper end of one end of the extruder barrel, the discharge port is arranged at the lower end of the spinneret, the screw is arranged in the extruder barrel, and the drive device is connected to the screw to drive the screw to rotate; a static stirring device is provided in the extruder barrel, and the static stirring device is located above the spinneret.
[0006] The static stirring device's mixing element utilizes a spiral blade structure, effectively improving mixing uniformity and enabling the thorough and uniform mixing of different-colored pigments or masterbatches with thermoplastic elastomers in a short period of time. By placing the static stirring device above the spinneret, the spiral blade structure appropriately reduces the flow rate as the material passes through it, enabling thorough mixing of the different-colored materials during extrusion, achieving a uniform and stable color gradient effect. To enhance mixing, the spiral blade structure can also reduce the fluidity of the mixture to a certain extent, improving mixing performance.
[0007] The feed port can be equipped with multiple feeding channels, each for feeding materials of different colors, improving production efficiency and product quality. Multiple independent feeding channels, each equipped with a high-precision flow controller, can individually and accurately control the feeding speed and ratio of different colored materials.
[0008] A high-precision metering device is provided at the lower part of the discharge port to ensure that the feeding amount error of each color material is controlled within a very small range, thereby ensuring the accuracy of the color ratio.
[0009] The material storage tank at the feed port is made of stainless steel and has an anti-stick coating on the inside to ensure an adequate supply of material.
[0010] The feed port, static stirring device, and discharge port are each equipped with independent temperature control modules. Using a combination of electric heating and oil cooling, the temperature control accuracy is within ±1°C. The temperature of each zone can be set separately.
[0011] Beneficial effects
[0012] The utility model discloses a device for extruding color gradient based on a three-dimensional network structure. Compared with the prior art, the utility model has the following beneficial effects:
[0013] By setting a static stirring device above the spinneret, its spiral blade structure can appropriately reduce the flow rate, so that materials of different colors can be fully mixed during the extrusion process, achieving a uniform and stable color gradient effect; a high-precision metering device is added to the lower part of the discharge port to ensure that the feed amount error of each color material is controlled within a very small range, ensuring the accuracy of the color ratio; multiple feed channels are set at the feed port to facilitate the input of materials of different colors, thereby improving production efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic structural diagram of a device for extruding color gradient based on a three-dimensional network structure according to the present invention;
[0015] Figure 2 It is a structural schematic diagram of a static stirring device;
[0016] Figure 3 This is a partial enlarged view of the three-dimensional network structure of the utility model;
[0017] In the figure: 1. Extruder barrel, 2. Feed port, 3. Discharge port, 4. Drive device, 5. Spinneret, 6. Static stirring device, 7. High-precision metering system, 8. Feed channel, 9. Loading channel. DETAILED DESCRIPTION
[0018] The present invention will be described in detail below. Before proceeding with the description, it should be understood that the terms used in this specification and the appended claims should not be interpreted as limited to their general meanings and dictionary meanings, but should be interpreted according to the meanings and concepts corresponding to the technical aspects of the present invention, based on the principle that allows the inventor to appropriately define the terms for optimal interpretation. Therefore, the descriptions presented here are merely preferred examples for illustrative purposes and are not intended to limit the scope of the present invention. It should be understood that other equivalents or improvements may be derived therefrom without departing from the spirit and scope of the present invention.
[0019] The following embodiments are merely examples of implementation schemes of the present invention and do not constitute any limitation to the present invention. Those skilled in the art will understand that modifications without departing from the essence and concept of the present invention fall within the scope of protection of the present invention.
[0020] Example 1
[0021] like Figure 1-2 As shown in the figure, a device for extrusion color gradient based on a three-dimensional network structure includes an extruder barrel 1, a feed port 2, a discharge port 3, a screw, a drive device 4, a spinneret 5, a static stirring device 6, a high-precision metering device 7, a feed channel 8, and a loading channel 9.
[0022] The feed port 2 is arranged at the upper end of one end of the extruder barrel 1, and the discharge port 3 is arranged at the upper end of the spinneret 5. The screw is arranged in the extruder barrel 1, and the driving device 4 is connected to the screw for driving the screw to rotate.
[0023] The static stirring device 6 is positioned above the spinneret 5. Its mixing elements utilize a spiral blade structure, effectively improving mixing uniformity and enabling the complete and uniform mixing of different colored pigments or masterbatches with the heated, molten thermoplastic elastomer liquid within a short period of time. By placing the spiral blade structure above the spinneret, the flow rate is appropriately reduced, enabling the different colored materials to be thoroughly mixed during the extrusion process, achieving a uniform and stable color gradient effect. To enhance mixing, the fluidity of the mixed liquid is reduced as it passes through the spiral blades, improving mixing performance.
[0024] A high-precision metering device 7 is provided at the lower portion of the discharge port 3 to ensure that the feeding amount error of each color material is controlled within a very small range, thereby ensuring the accuracy of the color ratio.
[0025] The feed port 2 may be provided with a plurality of feeding channels 9, which are used to input materials of different colors, thereby improving production efficiency and product quality. Each feeding channel 9 is equipped with a high-precision flow controller, which can separately and accurately control the feeding speed and proportion of materials of different colors.
[0026] A plurality of independent feeding channels 8 are also provided, and each feeding channel 8 is equipped with a high-precision flow controller, which can separately and accurately control the feeding speed and proportion of materials of different colors.
[0027] The material storage tank at the feed port is made of stainless steel and has an anti-stick coating on the inside to ensure an adequate supply of material.
[0028] The feed and discharge ports are equipped with independent temperature control modules. Using a combination of electric heating and oil cooling, the temperature control accuracy is within ±1°C. The temperature of each zone can be set separately.
[0029] In actual use, materials of different colors are fed into the extruder barrel through the feed channel. A drive unit rotates the screw, pushing the heated and molten masterbatch forward. Based on the set parameters, flow controllers in each feed channel activate, precisely delivering the different colored pigments or masterbatch melts at predetermined rates and ratios to a high-precision metering device. This high-precision metering device monitors the feed rate in real time to ensure it consistently meets the set requirements. The precisely metered materials enter the static mixing unit, where the pigments or masterbatch melts are rapidly and evenly dispersed into the thermoplastic elastomer. To enhance mixing, the spiral blade structure reduces the fluidity of the mixture, improving mixing performance. The thoroughly mixed materials are finally extruded through the discharge port, resulting in a uniform, color-gradient product.
[0030] In the production process of three-dimensional network structures, after the masterbatch molten liquid of different colors enters the static stirring device, the masterbatch molten liquid is fully mixed under the action of static stirring. The mixed masterbatch molten liquid is then extruded through spinnerets of different shapes. The shape of these spinnerets determines the specific form of the final structure. During the extrusion process, the material is in filamentous form. The extruded filaments spiral and enter the cooling system with cold water. The cold water can quickly lower the temperature of the filaments and shape them. In the cooling system, the filaments maintain a certain shape and structure. Finally, the shaped structure is pulled out of the water by the traction roller. The traction roller plays the role of traction and conveying, pulling the three-dimensional network structure smoothly out of the cooling system so that it can enter the subsequent processing or use links. Finally, a three-dimensional network structure is formed, such as Figure 3 shown.
[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the above embodiments, or to replace some of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions claimed to be protected by the present invention.
Claims
1. A device for extruding color gradient based on a three-dimensional network structure, characterized in that: include: The extruder barrel includes an extruder body, a feed port, a feed channel, a screw, a driving device, a spinneret, and a discharge port. The feed port is arranged at the upper end of one end of the extruder barrel, the discharge port is arranged at the lower end of the spinneret, the screw is arranged in the extruder barrel, and the driving device is connected to the screw to drive the screw to rotate; a static stirring device is provided in the extruder barrel, and the static stirring device is located above the spinneret.
2. The device for extruding a color gradient based on a three-dimensional network structure according to claim 1, characterized in that: The mixing element of the static stirring device adopts a spiral blade structure.
3. The device for extruding a color gradient based on a three-dimensional network structure according to claim 1, characterized in that: The feed port 2 is provided with a plurality of feeding channels, which are used to input materials of different colors. Each feeding channel is equipped with a high-precision flow controller, which can separately and accurately control the feeding speed and proportion of materials of different colors.
4. The device for extruding a color gradient based on a three-dimensional network structure according to claim 3, characterized in that: There are also multiple independent feeding channels, each of which is equipped with a high-precision flow controller, which can separately and accurately control the feeding speed and proportion of materials of different colors.
5. The device for extruding color gradient based on a three-dimensional network structure according to claim 1, characterized in that: A high-precision metering device is provided at the lower part of the discharge port to ensure that the error in the feeding amount of each color material is controlled within an extremely small range.
6. The device for extruding color gradient based on a three-dimensional network structure according to claim 1, characterized in that: The storage tank of the feed port is made of stainless steel and has an anti-stick coating on the inside.
7. The device for extruding color gradient based on a three-dimensional network structure according to claim 1, characterized in that: The feed port, static stirring device and discharge port are all equipped with independent temperature control modules.