Split type rapid nozzle cleaning equipment for mixed-color PVC injection molding flow line process

Abstract

The utility model relates to the technical field of nozzles, and discloses split type rapid nozzle cleaning equipment for a mixed color PVC (polyvinyl chloride) injection molding flow line process, which comprises a runner, one end of the runner is in threaded connection with a nozzle head, a core is arranged in the runner, the other end of the runner is in threaded connection with an extending heating barrel, and the extending heating barrel is in threaded connection with the nozzle head. The nozzle head and the extending heating barrel are attached to the two sides of the core, cylindrical pipelines are arranged in the nozzle head and the extending heating barrel and provide space for uniform flowing of materials, a containing cavity is formed in the runner, and the inner wall of the containing cavity is attached to the outer wall of the core. According to the utility model, the nozzle head, the core, the runner and the extension heating barrel are independent components, so that the components can be quickly disassembled and replaced, meanwhile, the components can be independently disassembled, the cleaning efficiency is improved, and a novel design is adopted in the heating mode of the nozzle, so that the stable melting of a PVC (Polyvinyl Chloride) material in the injection molding process is ensured, and less coke is generated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of injection nozzle, especially to split type quick cleaning injection nozzle equipment of mixed color PVC injection molding flow line process. BACKGROUND

[0002] Mixed color PVC injection molding flow line process is a kind of processing method that forms natural flow line or color line effect on the surface of PVC product through injection molding technology. This process adds one or more color master batches into PVC raw materials during injection molding, and uses special runner design and injection molding parameter control to make the material form unique color distribution and texture effect when flowing in the mold, finally obtains the product with artistic aesthetic feeling. In modern plastic product production industry, mixed color PVC injection molding flow line process has been widely applied in many fields such as toys, household supplies and decorations, because it can create unique, beautiful and rich in level appearance effect. This process can make the product surface present natural and smooth color lines, greatly improve the visual attraction and market competitiveness of the product, and split type quick cleaning injection nozzle equipment is a more important component in mixed color PVC injection molding flow line process.

[0003] At present, the mainstream PVC injection nozzle equipment on the market mostly adopts integrated structure design. In this structure, the nozzle head, filter and heating part and other key components are closely integrated together to form an indivisible whole. Its technical principle mainly relies on the integrated heating device to continuously heat the PVC material to make it reach the molten state. In the injection molding process, first, the PVC raw material and color master batch enter the barrel of injection molding machine through the hopper, and are molten and mixed under the action of heating and screw shearing; then, the molten PVC material passes through the large space structure of nozzle body and core, is further fully decomposed and mixed to ensure uniform color distribution, and then the material passes through the special designed runner and core structure in the nozzle head to form color line or flow line effect through close extrusion; finally, the molten material is injected into the mold, and after cooling and molding, the product is taken out after mold opening.

[0004] However, the traditional integrated structure nozzle device has certain problems in actual use. Due to the high integration between the components, the operation process becomes extremely cumbersome and complex during cleaning operation. The cleaning personnel cannot separately disassemble the nozzle head, filter and other specific components, which makes it impossible to apply the cleaning methods such as fire or high-temperature oil bubble that can quickly and efficiently remove dirt and impurities. If these cleaning methods are forcibly used, it will inevitably cause serious damage to other parts of the equipment. This not only directly leads to a significant reduction in cleaning efficiency, requiring a large amount of time and labor cost for cleaning work, but also inevitably increases the downtime of the equipment due to the extension of the cleaning time, thereby seriously affecting the overall production progress. In addition, the frequent and complex cleaning process also accelerates the wear of the components of the equipment, thereby shortening the overall service life of the equipment and further increasing the maintenance cost in the later period. Therefore, the split type rapid cleaning nozzle device for mixed color PVC injection molding flow line process is proposed to solve the above problems. Content of the utility model

[0005] In order to make up for the above shortcomings, the split type rapid cleaning nozzle device for mixed color PVC injection molding flow line process is provided, which aims to improve the problem that the existing technology is difficult to quickly and completely clean the nozzle when applied to PVC materials, resulting in low production efficiency and product defects caused by incomplete cleaning.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The split type rapid cleaning nozzle device for mixed color PVC injection molding flow line process comprises a flow channel, a nozzle head is threadedly connected to one end of the flow channel, a core is arranged inside the flow channel, an extension heating barrel is threadedly connected to the other end of the flow channel, and the core is attached to both sides between the nozzle head and the extension heating barrel.

[0008] Through the above technical scheme, the PVC material is injected into the flow channel through the nozzle head via the core, and the impurities and particles in the material are removed. The extension heating barrel adjusts the heating degree in real time through precise temperature control components, ensuring that the temperature during the entire injection molding process remains at a stable level.

[0009] Further description of the above technical scheme:

[0010] The nozzle head and the extension heating barrel are both internally provided with a cylindrical pipe, which provides space for the uniform flow of the material.

[0011] Further description of the above technical scheme:

[0012] The flow channel is internally provided with a containing cavity, and the inner wall of the containing cavity is attached to the outer wall of the core.

[0013] Through the technical scheme, the core effectively removes impurities and particles in the material, and the filtered PVC material can enter the nozzle head with ideal viscosity and uniformity, thereby ensuring smooth injection molding process and avoiding blockage or molding defects caused by impurities

[0014] As a further description of the above technical scheme:

[0015] The core is internally provided with arc-shaped flow guide grooves on both sides, and conical connecting blocks are fixedly connected to both sides of the core, and the maximum diameter of the conical connecting blocks is slightly smaller than the diameter of the inner wall of the nozzle head and the extension heating barrel.

[0016] Through the technical scheme, the arc-shaped flow guide grooves can effectively guide the material flow and fully mix the color masterbatch, so that the color masterbatch is uniformly distributed in the flow channel 1, the flow lines are uniformly dispersed, and the flowability and molding accuracy are further improved.

[0017] As a further description of the above technical scheme:

[0018] The nut is used for fixing or separating the components, and the nut is attached to one side of the flow channel.

[0019] Through the technical scheme, the nut-shaped structure is used for limiting and fixing the position of the flow channel, so that the equipment is stable and reliable during operation, and the possibility of accidents is reduced.

[0020] As a further description of the above technical scheme:

[0021] The maximum diameter of the nut is greater than the diameter of the inner wall of the flow channel, and the structure is used for limiting and fixing the position of the flow channel.

[0022] The utility model has the advantages of the following beneficial effects:

[0023] In the utility model, the nozzle head, the core, the flow channel and the extension heating barrel are independent components, which realizes quick disassembly and replacement of the components, improves cleaning efficiency because the components can be independently dismounted, and can be quickly and effectively cleaned by using the methods of fire burning or high-temperature oil soaking without affecting other parts of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0024] Fig. 1The utility model provides a mixed color PVC injection molding flow line process split type quick cleaning nozzle equipment's three -dimensional schematic view is provided for the utility model,

[0025] Fig. 2 The utility model provides a mixed color PVC injection molding flow line process split type quick cleaning nozzle equipment's explosion structure schematic view is provided for the utility model,

[0026] Fig. 3 The utility model provides a mixed color PVC injection molding flow line process split type quick cleaning nozzle equipment's internal structure schematic view is provided for the utility model.

[0027] Legend:

[0028] 1, flow passage, 2, nozzle head, 3, extension heating barrel, 4, core. Specific embodiments

[0029] The technical scheme in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range of protection of the utility model.

[0030] Reference Figs. 1-3The utility model provides a kind of embodiment provided by the utility model: split type quick cleaning nozzle equipment of mixed color PVC injection molding flow line process, including runner 1, mixed color PVC injection molding flow line process is a kind of through injection molding technology, form natural flow line or color line effect on the surface of PVC product processing method.This process is by adding one or more color masterbatch to PVC raw material when injection molding, utilize special runner design and injection molding parameter control, make material form unique color distribution and texture effect when flowing in mould, finally obtain product with artistic aesthetic feeling, the one end of runner 1 is threadedly connected with nozzle head 2, nozzle head 2 is used for optimizing the distribution of material, ensure that material can flow evenly in injection molding process, improve the quality of molding product, runner 1 is internally provided with core 4, the other end of runner 1 is threadedly connected with extension heating barrel 3, extension heating barrel 3 keeps the temperature of material by uniform heating, prevents the forming defect caused by uneven temperature, nozzle head 2 and extension heating barrel 3 between with core 4 two sides are pasted, nozzle head 2 and extension heating barrel 3 are internally provided with cylindrical pipe, and cylindrical pipe provides space for the uniform flow of material, ensure the smoothness of flow, so that material can reach ideal flow state before entering mould, and then improve production efficiency, runner 1 is internally provided with accommodating cavity, and accommodating cavity inner wall is pasted with the outer wall of core 4, and the effect of core 4 is to filter impurities in material, ensure that PVC material injected into mould is pure and impurity-free, arc-shaped flow guide groove is internally provided on the two sides of core 4, and arc-shaped flow guide groove can effectively guide material flow, so that it is evenly distributed in runner 1, further improve flowability and forming accuracy, conical connecting block is fixedly connected on the two sides of core 4, and the maximum diameter of two sides conical connecting block is slightly smaller than the inner wall diameter of nozzle head 2 and extension heating barrel 3 ， Nut is threadedly connected on the outer wall of extension heating barrel 3, and the nut is used for fixing or separating each component, and the nut is pasted with one side of runner 1, and the maximum diameter of nut is greater than the inner wall diameter of runner 1, and the nut is used for limiting and fixing the position of runner 1, ensure that equipment is stable and reliable in operation process, reduce the possibility of accident.

[0031] Specifically, during the injection molding process, the PVC material is injected into the flow channel 1 through the nozzle head 2 via the core 4. This process aims to ensure that the material reaches the optimal flow state and purity before entering the flow channel 1. The core 4, through its precise structural design, effectively removes impurities and particles from the material, ensuring that the treated PVC material can smoothly enter the nozzle head 2 with ideal viscosity and uniformity. This process not only optimizes the flowability of the material but also avoids blockage or molding defects caused by impurities, thereby significantly improving the stability of the injection molding process and the quality of the products. During this process, the extension heating barrel 3 ensures uniform distribution of the material temperature throughout the injection molding process through precise temperature control. The temperature control components built into the extension heating barrel 3 can adjust the heating degree in real time, keeping the temperature at a stable level and avoiding problems such as unstable material performance, strength reduction, and poor molding caused by uneven temperature. The temperature control components here mainly refer to the injection molding components inside the injection molding machine or can be controlled by external temperature control instruments, not the temperature control of the nozzle itself. This precise temperature control not only significantly improves the quality of the molded products but also effectively reduces the waste rate during production, thereby reducing the production of substandard products and further improving the economic efficiency and resource utilization rate of production. After production is completed, each independent component, such as the nozzle head 2, the core 4, the flow channel 1, and the extension heating barrel 3, can be quickly removed and cleaned. This split design makes it easier for maintenance personnel to clean more quickly and efficiently, significantly reducing the time and labor costs required for cleaning traditional equipment. At the same time, this design also shortens the downtime of the equipment, allowing the production line to resume operation more quickly and further improving overall production efficiency. In addition, the modular design of independent components also facilitates quick replacement and adjustment for different production needs, enhancing the flexibility and adaptability of the equipment and providing a strong guarantee for the long-term stable operation of the production line.

[0032] Working principle: During the injection molding process, the PVC material is injected into the nozzle head 2 through the core 4 via the flow channel 1, ensuring that the material reaches the optimal flow state and purity before entering the nozzle head 2. The design of the core 4 effectively removes impurities and particles from the material, and the filtered PVC material can enter the nozzle head 2 with ideal viscosity and uniformity, ensuring a smooth injection molding process and avoiding blockage or molding defects caused by impurities. During this process, the extended heating barrel 3 ensures uniform distribution of material temperature. Through precise temperature control components, the extended heating barrel 3 can adjust the heating degree in real time, ensuring that the temperature during the entire injection molding process remains at a stable level, avoiding unstable material performance caused by uneven temperature, such as strength reduction, poor molding, etc. Not only does this significantly improve the quality of molded products, but it also effectively reduces the waste rate during production, reduces the production of substandard products, and further improves the economic efficiency of production. When production is complete, the design team has specially considered the convenience of maintenance for the disassembly and cleaning of the equipment. Each independent component, such as the nozzle head 2, core 4, flow channel 1, and extended heating barrel 3, can be quickly removed and cleaned. This split design allows maintenance personnel to clean more quickly and efficiently, reducing the time and labor costs required for cleaning traditional equipment. At the same time, this also shortens the downtime of the equipment, allowing the production line to resume operation more quickly, thereby significantly improving overall production efficiency.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. Split quick cleaning nozzle device for color mixing PVC injection molding riblet process, comprising a flow channel (1), characterized in that: The flow channel (1) is threadedly connected with a nozzle head (2) at one end, the flow channel (1) is internally provided with a core (4), the flow channel (1) is threadedly connected with an extended heating barrel (3) at the other end, and the nozzle head (2) and the extended heating barrel (3) are in close contact with the two sides of the core (4).

2. The split quick clean nozzle apparatus for a color mixed PVC injection molded rib process of claim 1, wherein: The nozzle head (2) and the extended heating barrel (3) are internally provided with cylindrical pipelines, which provide space for the uniform flow of materials.

3. The split quick clean nozzle apparatus for a color mixed PVC injection stretch process of claim 1, wherein: The flow channel (1) is internally provided with a containing cavity, and the inner wall of the containing cavity is in close contact with the outer wall of the core (4).

4. The split quick clean nozzle apparatus for a color mixed PVC injection stretch process of claim 1, wherein: The core (4) is internally provided with arc-shaped flow guide grooves on both sides, and the core (4) is fixedly connected with conical connecting blocks on both sides, and the maximum diameter of the conical connecting blocks on both sides is slightly smaller than the inner wall diameter of the nozzle head (2) and the extended heating barrel (3).

5. The split quick clean nozzle apparatus for a color mixed PVC injection stretch process of claim 1, wherein: The outer wall of the extended heating barrel (3) is threadedly connected with a nut, the nut is used for fixing or separating each part, and the nut is in close contact with one side of the flow channel (1).

6. The split quick clean nozzle apparatus for a color mixed PVC injection stretch process of claim 5, wherein: The maximum diameter of the nut is greater than the inner wall diameter of the flow channel (1), and the nut is used for limiting and fixing the position of the flow channel (1).

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