A device for removing patterns and watermarks from a pipe

Abstract

The utility model discloses a device is eliminated to pipe fitting pattern and watermark, including sliding block, insert block, oil circuit, oil nozzle, oil pipe and mould temperature machine, install insert block on the sliding block, the inside of sliding block is provided with oil circuit, both ends of oil circuit all install oil nozzle, the oil nozzle is connected with mould temperature machine through oil pipe. Sliding block sets up on movable mould, and sliding block is connected with movable mould sliding, be provided with inclined hole on the sliding block, and the inclined guide pillar inserts the inclined hole of sliding block, and the inclined guide pillar sets up on fixed mould, and when opening the mould, the inclined guide pillar drives the sliding block to remove. The utility model sets up the oil circuit in the sliding block of mould, can heat the mould through mould temperature machine in the injection moulding process, prevents the surface of injection moulding product to appear pattern, watermark, has improved product quality, and has reduced production cost.

Description

Technical Field

[0001] This utility model relates to the field of pipe fitting manufacturing technology, and in particular to a device for removing patterns and watermarks from pipe fittings. Background Technology

[0002] Most existing PPR, PE, and PVC pipe fittings are injection molded. The existing molds have low injection temperatures, which can cause flow marks, patterns, and watermarks during the injection process. The surface of the product is usually glossy, and products with patterns and watermarks on the surface are considered scrap. An increase in the scrap rate will lead to an increase in production costs. Utility Model Content

[0003] In view of the above problems, the present invention aims to provide a device for removing patterns and watermarks from pipe fittings, so as to solve the problem that patterns and watermarks are prone to appear on pipe fitting products.

[0004] The technical problem solved by this utility model can be achieved by the following technical solution: a device for removing patterns and watermarks from pipe fittings, including a slider, an insert, an oil circuit, an oil nozzle, an oil pipe and a mold temperature controller. The slider is equipped with an insert, the slider has an oil circuit inside, and oil nozzles are installed at both ends of the oil circuit. The oil nozzles are connected to the mold temperature controller through the oil pipe.

[0005] The slider is mounted on the moving mold and is slidably connected to the moving mold. The slider has an oblique hole, and the oblique guide post is inserted into the oblique hole of the slider. The oblique guide post is mounted on the fixed mold. When the mold is opened, the oblique guide post drives the slider to move.

[0006] The inlet and outlet of the oil circuit are both located on the outer surface of the slider, and oil nozzles are provided at the inlet and outlet of the oil circuit.

[0007] The slider is mounted on the moving mold, and an ejector plate is mounted below the moving mold. An ejector pin is mounted on the ejector plate and passes through the moving mold to connect with the cavity.

[0008] The ejector plate is provided with a guide post, the upper end of which is fixedly connected to the moving mold and the lower end of which is fixedly connected to the lower cover plate. The ejector plate can slide along the guide post. A spring is sleeved on the guide post, the upper end of which is connected to the moving mold and the lower end of which is connected to the ejector plate.

[0009] Compared with the prior art, this utility model has the following advantages: The utility model sets up an oil circuit in the slider of the mold, and the mold can be heated by the mold temperature controller during the injection molding process to prevent patterns and watermarks from appearing on the surface of the injection molded products, thereby improving product quality and yield and reducing production costs. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model; Figure 3 A structural schematic diagram of the pipe fittings and inserts; Figure 4 This is a schematic diagram of the fixed mold assembly. Figure 5 This is a schematic diagram of the moving mold assembly. In the diagram: 1-Plastic product, 2-Copper part, 3-Insert, 4-Slider, 5-Oil circuit, 6-Oil nozzle, 7-Oil pipe, 8-Mold temperature controller, 9-Angled guide pillar, 10-Fixed mold, 11-Moving mold, 12-Ejector pin, 13-Ejector plate, 14-Guide pillar, 15-Spring, 16-Lower cover plate. Detailed Implementation

[0011] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0012] In the description of this utility model, it should be understood that the terms "one end", "the other end", "outer side", "upper", "inner side", "horizontal", "coaxial", "center", "end", "length", "outer end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0013] Combined with appendix Figures 1 to 5 As shown, this embodiment discloses a device for eliminating patterns and watermarks on pipe fittings, including a slider 4, an insert 2, an oil passage 5, an oil nozzle 6, an oil pipe 7, and a mold temperature controller 8. The slider 4 is equipped with an insert 3, and an oil passage 5 is provided inside the slider 4. Oil nozzles 6 are installed at both ends of the oil passage 5, and the oil nozzles 6 are connected to the mold temperature controller 8 via the oil pipe 7. The inlet and outlet ends of the oil passage 5 are located on the outer surface of the slider 4, and oil nozzles 6 are provided at both ends. The oil passage inlets of the two sliders are connected to the oil outlet of the mold temperature controller 8 via oil pipes, and the oil passage outlets of the two sliders are connected to the oil inlet of the mold temperature controller 8 via oil pipes. The oil passage 5, oil pipe 7, and mold temperature controller 8 form an oil circulation loop. During injection molding, the mold temperature controller 8 heats the slider 4 and the insert 2, accelerating the flow rate of the melt and preventing patterns or watermarks from appearing on the surface of the plastic product 1 at the interface with the copper part 2 due to low mold temperature.

[0014] The slider 4 is mounted on the moving mold 11 and is slidably connected to the moving mold 11. The slider 4 is provided with an oblique hole, and the oblique guide post 9 is inserted into the oblique hole of the slider 4. The oblique guide post 9 is mounted on the fixed mold 10. When the mold is opened, the oblique guide post 9 drives the slider 4 to move.

[0015] The slider 4 is mounted on the moving mold 11. An ejector plate 13 is located below the moving mold 11, and ejector pins 12 are mounted on the ejector plate 13. The ejector pins 12 pass through the moving mold 11 and connect to the cavity. A guide post 14 passes through the ejector plate 13. The upper end of the guide post 14 is fixedly connected to the moving mold 11, and the lower end is fixedly connected to the lower cover plate 16. The ejector plate 13 can slide along the guide post 14. A spring 15 is fitted on the guide post 14. The upper end of the spring 15 is connected to the moving mold 11, and the lower end is connected to the ejector plate 13. The spring 15 is used to reset the ejector pin 12 after it has been ejected.

[0016] During production, the copper part 2 is first placed on the insert 3, and then the mold is closed for injection molding. During the injection molding process, the mold is heated by the mold temperature controller 8. Heating the mold can accelerate the flow rate of the melt and prevent patterns or watermarks from appearing on the surface of the plastic product 1 at the interface with the copper part 2 due to low mold temperature. After the product cools down, the fixed mold 10 opens, the inclined guide post 9 drives the slider 4 to pull the core, and then the ejector rod presses against the ejector plate 13, and the ejector pin 11 ejects the plastic product 1. This utility model can heat the mold by the mold temperature controller 8 during the injection molding process to prevent patterns and watermarks from appearing on the surface of the injection molded product, thereby improving product quality and yield, and reducing production costs.

[0017] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the utility model. Any simple modifications, equivalent changes, or alterations made to the above embodiments based on the technical principles of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A device for removing patterns and watermarks from pipe fittings, comprising a slider (4), an insert (3), an oil passage (5), an oil nozzle (6), an oil pipe (7), and a mold temperature controller (8), characterized in that: The slider (4) is equipped with an insert (3), and the slider (4) is provided with an oil passage (5). Both ends of the oil passage (5) are equipped with oil nozzles (6), and the oil nozzles (6) are connected to the mold temperature controller (8) through oil pipes (7).

2. The device for removing patterns and watermarks from pipe fittings according to claim 1, characterized in that: The slider (4) is set on the moving mold (11), and the slider (4) is slidably connected to the moving mold (11). The slider (4) is provided with an oblique hole, and the oblique guide post (9) is inserted into the oblique hole of the slider (4). The oblique guide post (9) is set on the fixed mold (10). When the mold is opened, the oblique guide post (9) drives the slider (4) to move.

3. The device for removing patterns and watermarks from pipe fittings according to claim 1, characterized in that: The inlet and outlet of the oil passage (5) are both located on the outer side of the slider (4), and the inlet and outlet of the oil passage (5) are provided with oil nozzles (6).

4. The device for removing patterns and watermarks from pipe fittings according to claim 1, characterized in that: The slider (4) is set on the moving mold (11), and an ejector plate (13) is set below the moving mold (11). An ejector pin (12) is set on the ejector plate (13), and the ejector pin (12) passes through the moving mold (11) and connects to the cavity.

5. The device for removing patterns and watermarks from pipe fittings according to claim 4, characterized in that: The ejector plate (13) is provided with a guide post (14). The upper end of the guide post (14) is fixedly connected to the moving mold (11), and the lower end is fixedly connected to the lower cover plate (16). The ejector plate (13) can slide along the guide post (14). A spring (15) is sleeved on the guide post (14). The upper end of the spring (15) is connected to the moving mold (11), and the lower end is connected to the ejector plate (13).

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