A two-color marking machine head for a drain pipe forming device

Abstract

The application discloses a double-color marking machine head of a drain pipe forming device, belongs to the technical field of pipe processing equipment, and has the technical scheme as follows: an outer die seat, a die, a core die, a color marking line device, the outer die seat, the die and the core die are sequentially connected through fasteners, the color marking line device comprises a flow distribution plate, a feeding nozzle and an injection nozzle, the feeding nozzle is provided with two feeding nozzles and is arranged on the flow distribution plate, the injection nozzle is arranged on the flow distribution plate, the flow distribution plate is provided with hot runners, a valve rod is movably arranged in the injection nozzle, and the two ends of the valve rod correspond to different hot runners respectively. The double-color marking lines are regularly formed on the surface of the pipe and alternately distributed, so that the distance between two positions on the pipe can be quickly estimated.

Description

Technical Field

[0001] This application belongs to the technical field of pipe processing equipment, and in particular relates to a two-color marking head for a drainage pipe forming device. Background Technology

[0002] During the extrusion molding of plastic pipes, the material enters the barrel from the extruder hopper. Under the action of barrel temperature and the rotation, compaction, and mixing of the screw, the powdery or granular solid is transformed into a uniform and continuous melt with a certain fluidity. After the plastic melt moves to the vicinity of the front end of the barrel, it flows into the die head (i.e., extrusion die) through the manifold under the extrusion action of the screw rotation. It is then shaped into a high-temperature tubular object according to the shape of the forming parts (die, core die, etc.) in the die head. The high-temperature tubular plastic sizing device, cooling device, traction device, and cutting device produce the plastic pipe required for production.

[0003] In the conventional plastic pipe processing, manufacturers need to add color-coded lines depending on the product. The existing color-coded lines use a single color to be continuously distributed on the pipe surface. However, this color-coded line cannot quickly estimate the distance between two positions on the pipe. This needs to be improved. Utility Model Content

[0004] The purpose of this application is to address the aforementioned technical problems by providing a dual-color marking head for a drainage pipe forming device, which facilitates rapid estimation of the distance between two positions on the pipe by regularly forming alternating dual-color markings on the pipe surface.

[0005] This application provides a dual-color marking head for a drainage pipe forming device, comprising: Outer mold base; Mouth mold; The core mold is installed and connected to the outer mold base; A color mark line device includes a flow divider plate, a feed nozzle, and an injection nozzle. The outer mold base, the flow divider plate, and the die are sequentially connected by fasteners. Two feed nozzles are provided and installed on the flow divider plate. The injection nozzle is installed on the flow divider plate. The flow divider plate is provided with a hot runner. The valve stem is movably placed in the injection nozzle, and the two ends of the valve stem correspond to different hot runners.

[0006] The core mold and outer mold base are connected by fasteners such as bolts and nuts. There is a flow gap between the outer mold base and the core mold. The outer mold base, flow divider plate, and die are also connected by fasteners such as bolts and nuts. Material is received by the outer mold base and flows between the outer mold base and the core mold, then continues to flow between the core mold and the die to form a pipe. A color mark device is installed between the outer mold base and the die. There is a material flow channel between the core mold and the flow divider plate. When material passes through, the color mark device adds the color-marked material to the pipe material. When the pipe is formed... Color markings are then formed on the outer wall surface. The material for the color markings is received separately through the feed nozzles. Then, the material for the two color markings is conveyed to the injection nozzles through the diverter plate. The material for the color markings ejected through the injection nozzles is controlled by the movement of the valve stem. The forming width and length of the color marking material are controlled by the pressure, input amount, and input speed of the material input through the feed nozzles. By feeding material through the two injection nozzles in turn, two different colors of color markings are formed on the outer wall surface of the formed pipe and are distributed alternately. This allows for easy and quick estimation of the distance between two positions on the pipe.

[0007] Furthermore, the diverter plate includes: A flow divider is mounted on a flow divider plate and connected to an injection nozzle. The flow divider is provided with a flow channel.

[0008] The flow divider seat and the injection nozzle are connected by bolts and other fasteners. The flow divider seat and the flow divider plate are also connected by bolts and other fasteners. The flow divider plate guides the material into the flow channel in the flow divider seat through the hot runner. The flow channel corresponds to the end face of the valve stem. When the corresponding feed nozzle feeds, it can transmit pressure to the valve stem to move the valve stem, so that the corresponding material continues to flow in the injection nozzle.

[0009] Furthermore, the injection nozzle includes: The movable groove is adapted to the valve stem, and the two ends of the movable groove correspond to the flow channel respectively.

[0010] The movable groove facilitates the movement of the valve stem. The end of the movable groove is connected to the flow channel, allowing the material in the flow channel to flow into the movable groove. The valve stem and the movable groove have a sealing performance, which is achieved by using a 0.01-0.02mm gap fit between the valve stem and the movable groove to prevent the material from flowing between the two flow channels.

[0011] Furthermore, the injection nozzle also includes: The injection channels correspond to the two ends of the valve stem.

[0012] The injection channel has two corresponding flow channels. The injection channel is connected to the movable groove. When the valve stem moves to open, the injection channel, movable groove, and flow channels are connected, and the material flow can be input to the inner side of the diverter plate. When the valve stem moves to close, the injection channel and the flow channel are separated by the valve stem. The side wall of the injection channel corresponding to the valve stem prevents the material in the corresponding injection channel from flowing back.

[0013] Furthermore, the injection nozzle also includes: A limiting seat is installed and connected to an injection nozzle, and the limiting seat is provided with a limiting part; The valve stem has a limiting groove in the middle.

[0014] The limiting part and the limiting seat are integrally connected. The limiting part cooperates with the limiting groove to place the valve seat in the movable groove for stroke limitation. The limiting seat and the injection nozzle are installed and connected by bolts or other fasteners.

[0015] Furthermore, the injection nozzle also includes: The mounting part is adapted to the valve stem and the mounting part is adapted to the limit seat.

[0016] The mounting parts are located on both sides of the limiting seat, which facilitates the installation and connection with the limiting seat, and also maintains the structural stability of the movable groove.

[0017] Furthermore, the diversion seat includes: The first heating wire is installed on the distributor seat.

[0018] The first heating wire is installed on the distributor seat and corresponds to the hot runner. The first heating wire is connected to the power supply. When the hot runner is filled with material, the material is heated by the first heating wire to maintain its temperature. When the feed nozzle feeds alternately, the material is heated by the first heating wire to maintain its flowability.

[0019] Furthermore, the diverter plate includes: The second heating wire is installed on the distributor plate.

[0020] The second heating wire is installed on the flow divider plate and connected to the power supply. When heated by the second heating wire, the material in the flow divider plate remains fluid, which facilitates the smooth flow of the material between the core mold and the die to form the tube body, and ensures the connection stability between the material of the color mark line and the tube body.

[0021] The beneficial effects of this application are: 1. The color mark device can add color mark material into the pipe material, and after the pipe is formed, color marks are formed on the outer wall surface.

[0022] 2. The material of the color mark line is received through the feed nozzle, and then the material of the two color mark lines is transported to the injection nozzle through the flow divider plate. The material of the color mark line is sprayed out through the injection nozzle by the movement of the valve rod.

[0023] 3. By feeding material through two injection nozzles in turn, two different colors of color marks are formed on the outer wall of the formed pipe, which can facilitate quick estimation of the distance between two positions on the pipe. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the dual-color marking head of this application; Figure 2 This is a cross-sectional view of the two-color marking head of this application; Figure 3 For the purposes of this application Figure 2 A magnified view of point A; Figure 4 This is a schematic diagram of the structure of the flow divider in this application; In the attached figures, the following labels are used: 100, outer mold base; 200, die; 300, core mold; 400, color mark line device; 410, manifold; 411, hot runner; 420, feed nozzle; 430, injection nozzle; 431, movable groove; 432, injection channel; 433, mounting part; 440, manifold seat; 441, flow channel; 450, limit seat; 451, limit part; 500, valve stem; 510, limit groove; 600, first heating wire; 700, second heating wire. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0026] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0027] The embodiments of this application are described in detail below with reference to the accompanying drawings, through specific examples and application scenarios.

[0028] Example 1: like Figures 1-4 As shown in the figure, this application embodiment provides a dual-color marking head for a drain pipe forming device, including: External mold base 100; Mouth mold 200; The core mold 300 is installed and connected to the outer mold base 100; The color mark line device 400 includes a flow divider plate 410, a feed nozzle 420, and an injection nozzle 430. The outer mold base 100, the flow divider plate 410, and the die 200 are sequentially connected by fasteners. Two feed nozzles 420 are provided and installed on the flow divider plate 410. The injection nozzle 430 is installed on the flow divider plate 410. The flow divider plate 410 is provided with a hot runner 411. The valve stem 500 is movably placed in the injection nozzle 430, and the two ends of the valve stem 500 correspond to different hot runners 411.

[0029] The core mold 300 and the outer mold base 100 are connected by fasteners such as bolts and nuts. There is a flow gap between the outer mold base 100 and the core mold 300. The outer mold base 100, the flow divider plate 410, and the die 200 are connected by fasteners such as bolts and nuts. After being received by the outer mold base 100, the material flows between the outer mold base 100 and the core mold 300, and then continues to flow between the core mold 300 and the die 200 to form a pipe. A color mark device 400 is installed between the outer mold base 100 and the die 200. There is a material flow channel between the core mold 300 and the flow divider plate 410. When material passes through, the color mark device 400 can mark the material. Material is added to the pipe body. After the pipe is formed, color markings are formed on the outer wall. The material of the color markings is received through the feed nozzle 420. Then, the material of the two color markings is transported to the injection nozzle 430 through the diverter plate 410. The material of the color markings sprayed out through the injection nozzle 430 is controlled by the movement of the valve stem 500. The forming width and length of the color marking material are controlled by the pressure, input amount and input speed of the material input through the feed nozzle 420. By feeding material through the two injection nozzles 430 in turn, two different colors of color markings are formed on the outer wall of the formed pipe and are distributed alternately. This allows for easy and quick estimation of the distance between two positions on the pipe.

[0030] Furthermore, the diverter plate 410 includes: The flow divider 440 is mounted on the flow divider plate 410 and connected to the injection nozzle 430. The flow divider 440 is provided with a flow channel 441.

[0031] The flow divider seat 440 and the injection nozzle 430 are connected by bolts or other fasteners. The flow divider seat 440 and the flow divider plate 410 are also connected by bolts or other fasteners. The flow divider plate 410 guides the material into the flow channel 441 in the flow divider seat 440 through the hot runner 411. The flow channel 441 corresponds to the end face of the valve stem 500. When the corresponding feed nozzle 420 feeds, it can transmit pressure to the valve stem 500 to move the valve stem 500, so that the corresponding material continues to flow in the injection nozzle 430.

[0032] Example 2: like Figures 2-4 As shown, this application embodiment provides a dual-color marking head for a drain pipe forming device. In addition to the above-mentioned technical features, the injection nozzle 430 further includes: The movable groove 431 is adapted to the valve stem 500, and the two ends of the movable groove 431 correspond to the flow channel 441 respectively.

[0033] The movable groove 431 facilitates the movement of the valve stem 500. The end of the movable groove 431 is connected to the flow channel 441, allowing the material in the flow channel 441 to flow into the movable groove 431. The valve stem 500 and the movable groove 431 have a sealing performance. The sealing performance is achieved by using a sealing element or a 0.01-0.02mm gap fit between the valve stem 500 and the movable groove 431 to prevent the material from flowing between the two flow channels 441.

[0034] Furthermore, the injection nozzle 430 also includes: Injection channels 432 correspond to the two ends of valve stem 500 respectively.

[0035] The injection channel 432 has two corresponding flow channels 441. The injection channel 432 is connected to the movable groove 431. When the valve stem 500 moves to open, the injection channel 432, the movable groove 431, and the flow channel 441 are connected, and the material flow can be input to the inner side of the diverter plate 410. When the valve stem 500 moves to close, the injection channel 432 and the flow channel 441 are separated by the valve stem 500. The injection channel 432 corresponds to the side wall of the valve stem 500 to prevent the material in the corresponding injection channel 432 from flowing back.

[0036] Furthermore, the injection nozzle 430 also includes: A limiting seat 450 is installed and connected to an injection nozzle 430, and the limiting seat 450 is provided with a limiting part 451; The valve stem 500 is provided with a limiting groove 510 in the middle.

[0037] The limiting part 451 and the limiting seat 450 are integrally connected. The limiting part 451 cooperates with the limiting groove 510 to place the valve seat in the movable groove 431 for stroke limitation. The limiting seat 451 and the injection nozzle 430 are connected by fasteners such as bolts.

[0038] Furthermore, the injection nozzle 430 also includes: Mounting part 433 is adapted to valve stem 500 and mounting part 433 is adapted to limit seat 450.

[0039] The mounting part 433 is placed on both sides of the limiting seat 450. The mounting part 433 facilitates the installation and connection with the limiting seat 450, and maintains the structural stability of the movable groove 431.

[0040] Example 3: like Figure 3 As shown, this application embodiment provides a dual-color marking head for a drain pipe forming device. In addition to the above-mentioned technical features, the diverter seat 440 further includes: The first heating wire 600 is installed on the distributor 440.

[0041] The first heating wire 600 is installed on the flow divider 440 and corresponds to the hot runner 411. The first heating wire 600 is connected to the power supply. When the hot runner 411 is filled with material, the material is heated by the first heating wire 600 to maintain the temperature. When the feed nozzle 420 feeds alternately, the material is heated by the first heating wire 600 to maintain the flowability of the material.

[0042] Example 4: like Figure 4 As shown, this application embodiment provides a dual-color marking head for a drainage pipe forming device. In addition to the above-mentioned technical features, the diverter plate 410 further includes: The second heating wire 700 is installed on the distributor plate 410.

[0043] The second heating wire 700 is installed on the flow divider plate 410. The second heating wire 700 is connected to the power supply. When heated by the second heating wire 700, the material in the flow divider plate 410 remains fluid, which facilitates the material to flow smoothly between the core mold 300 and the die 200 to form the tube body, and ensures the connection stability between the material of the color mark line and the tube body.

[0044] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0045] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A dual-color marking head for a drainage pipe forming device, characterized in that, include: Outer mold base (100); Mouth mold (200); The core mold (300) is installed and connected to the outer mold base (100); The color mark line device (400) includes a flow divider (410), a feed nozzle (420), and an injection nozzle (430). The outer mold base (100), the flow divider (410), and the die (200) are sequentially connected by fasteners. There are two feed nozzles (420) installed on the flow divider (410). The injection nozzle (430) is installed on the flow divider (410). The flow divider (410) is provided with a hot runner (411). A valve stem (500) is movably placed in an injection nozzle (430), and the two ends of the valve stem (500) correspond to different hot runners (411).

2. The dual-color marking head of the drainage pipe forming device according to claim 1, characterized in that, The diverter plate (410) includes: A flow divider (440) is mounted on a flow divider plate (410) and connected to an injection nozzle (430). The flow divider (440) is provided with a flow channel (441).

3. The dual-color marking head of the drainage pipe forming device according to claim 1, characterized in that, The injection nozzle (430) includes: The movable groove (431) is adapted to the valve stem (500), and the two ends of the movable groove (431) correspond to the flow channel (441) respectively.

4. The dual-color marking head of the drainage pipe forming device according to claim 3, characterized in that, The injection nozzle (430) also includes: The injection channels (432) correspond to the two ends of the valve stem (500).

5. The dual-color marking head of the drainage pipe forming device according to claim 3, characterized in that, The injection nozzle (430) also includes: A limiting seat (450) is installed and connected to an injection nozzle (430), and the limiting seat (450) is provided with a limiting part (451). The valve stem (500) is provided with a limiting groove (510) in the middle.

6. The dual-color marking head of the drainage pipe forming device according to claim 5, characterized in that, The injection nozzle (430) also includes: Mounting part (433) is adapted to valve stem (500) and mounting part (433) is adapted to limit seat (450).

7. The dual-color marking head of the drainage pipe forming device according to claim 2, characterized in that, The diverter (440) includes: The first heating wire (600) is installed on the distributor seat (440).

8. The dual-color marking head of the drainage pipe forming device according to claim 1, characterized in that, The diverter plate (410) includes: The second heating wire (700) is installed on the distributor plate (410).

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