A plastic pipe hole blocking mold structure

Abstract

The application discloses a plastic oil pipe oil hole blocking die structure, which comprises a die body used for accommodating an oil pipe and a cavity core pin located on one side of the oil pipe, the die body is provided with a sliding groove, the sliding groove is provided with a guide pin capable of sliding in the sliding groove, the guide pin is used for mounting an oil hole core pin, so that the oil hole core pin is close to the cavity core pin, the guide pin is connected with a guide plate, and a driving block used for driving the guide plate is further included. The application greatly improves the size of the product and the generality of the oil injection hole, saves the whole inspection and repair process, avoids manual hole inspection, finally solves the problem of forming the oil injection hole in the inclined side, and guarantees the product characteristics and functions (the oil injection hole).

Description

Technical Field

[0001] This utility model relates to the field of oil pipe injection molding, and in particular to a mold structure for preventing clogging of oil holes in plastic oil pipes. Background Technology

[0002] Existing cooling oil pipes for new energy drive motors require perforations in their sidewalls due to manufacturing process requirements. These perforations allow for oil spraying and cooling of gears and other rotating mechanical components within the motor. Therefore, the oil perforations on the sidewalls of the oil pipes are a critical feature of this product, and blockage must be avoided during manufacturing. However, during injection molding, the extremely high injection flow rate and pressure of the plastic material often cause the forming pins of the oil perforations to bend and deform, preventing them from fully adhering to the surface of the core-pulling rod. This results in frequent blockages of the oil perforations, affecting the product's functional characteristics. Therefore, the mold structure of this product needs to be improved and developed. Summary of the Invention

[0003] To solve the above problems, this technical solution provides a mold structure to prevent clogging of plastic oil pipes and oil holes.

[0004] To achieve the above objectives, the technical solution is as follows:

[0005] A mold structure for preventing clogging of plastic oil pipe oil holes includes a mold body for accommodating an oil pipe and a cavity core-pulling pin located on one side of the oil pipe. The mold body is provided with a slide groove, and a guide pin that can slide along the slide groove is provided. The guide pin is used to install the oil hole core-pulling pin so that the oil hole core-pulling pin is close to the cavity core-pulling pin. The guide pin is connected to a guide plate, and the mold structure also includes a drive block for driving the guide plate.

[0006] In some embodiments, the driving end of the driving block is designed with an inclined surface, and the guide plate is inclinedly disposed on the driving end side of the driving block.

[0007] In some embodiments, the guide pin is fitted with a spring, which is installed within the slide groove.

[0008] In some embodiments, the oil hole core-pulling pins are provided in three parts, and the ends are designed in an arc shape.

[0009] In some embodiments, one end of the guide pin is provided with a receiving step for receiving the end of the oil hole core-pulling pin, and one end of the guide pin is also provided with a connecting portion.

[0010] The beneficial effects of this application are:

[0011] This application greatly improves the size and generality of the product's spray nozzles. Furthermore, this production method saves on the full inspection and rework process, avoids manual through-hole inspection, and finally solves the problem of forming spray nozzles on the side, while also ensuring the product's characteristic functions (spray nozzles). Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0013] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model. Figure 1 ;

[0014] Figure 2 This is a schematic diagram of the structure of an embodiment of the present utility model. Figure 2 ;

[0015] Figure 3 This is a cross-sectional structural schematic diagram of an embodiment of the present utility model;

[0016] Figure 4 This is an abbreviated schematic diagram of an embodiment of this utility model;

[0017] Figure 5 This is a schematic diagram of the guide pin structure according to an embodiment of the present invention. Detailed Implementation

[0018] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] Please refer to Figure 1-5 As shown, a mold structure for preventing clogging of plastic oil pipes and oil holes includes a mold body 1, which is used to accommodate an oil pipe 2 and a cavity core-pulling pin 3 located on one side of the oil pipe 2. The mold body 1 is provided with a slide groove 4, and a guide pin 5 that can slide along the slide groove 4 is provided. The guide pin 5 is used to install an oil hole core-pulling pin 6 so that the oil hole core-pulling pin 6 is close to the cavity core-pulling pin 3. The guide pin 5 is connected to a guide plate 7, and a driving block 8 for driving the guide plate 7 is also included.

[0020] When the drive wedge moves downward, it applies downward pressure to the guide pin of the guide plate. The guide pin moves laterally along the guide hole of the drive block. At the same time, the lateral movement of the guide pin drives the oil hole core puller to contact the cavity core puller. The end groove guides and fixes the oil hole core puller to prevent the swaying problem caused by the maximum flow rate of the material during injection. After the front and rear molds are closed, the injection molding machine begins to inject material into the mold to complete the product injection. After a cooling time of 30-50 seconds, the return spring releases the elastic force to reset the oil hole core puller during the mold opening process.

[0021] Specifically, the driving end of the driving block 8 is designed with an inclined surface, and the guide plate 7 is inclinedly disposed on the driving end side of the driving block 8.

[0022] Specifically, the guide pin 5 is fitted with a spring 9, which is installed inside the slide groove 4.

[0023] In this embodiment, three oil hole core-pulling pins 6 are provided, and their ends are designed in an arc shape. The circular guide positioning dimension of the core-pulling pin end cannot be too large to avoid excessive material impact force and flow velocity leading to swaying instability. Generally, it is a semi-circular arc of the core-pulling pin radius, or a cone shape. For example, if the core-pulling pin radius is 0.5mm, the end diameter should be less than or equal to 1.0mm.

[0024] In this embodiment, one end of the guide pin 5 is provided with a receiving step 10 for receiving the end of the oil hole core puller 6, and one end of the guide pin 5 is also provided with a connecting part 11, which is easy to disassemble and assemble. The step plays the role of positioning the oil hole core puller and abuts against the connecting part to ensure stability during processing.

[0025] The above description is only a preferred embodiment of this application and is not intended to limit the scope of implementation of this application. Any other embodiments whose principles and basic structures are the same as or similar to those of this application are within the protection scope of this application.

Claims

1. A mold structure for preventing clogging of plastic oil pipes and oil holes, characterized in that, The mold body (1) is used to accommodate an oil pipe (2) and a cavity core-pulling pin (3) located on one side of the oil pipe (2). The mold body (1) is provided with a groove (4). A guide pin (5) is provided in the groove (4) and can slide along it. The guide pin (5) is used to install an oil hole core-pulling pin (6) so that the oil hole core-pulling pin (6) is close to the cavity core-pulling pin (3). The guide pin (5) is connected to a guide plate (7). The mold body (1) also includes a drive block (8) for driving the guide plate (7).

2. The mold structure for preventing clogging of plastic oil pipes and oil holes according to claim 1, characterized in that: The driving end of the driving block (8) is designed with an inclined surface, and the guide plate (7) is inclinedly arranged on the driving end side of the driving block (8).

3. The mold structure for preventing clogging of plastic oil pipe holes according to claim 2, characterized in that: The guide pin (5) is fitted with a spring (9), which is installed in the groove (4).

4. The mold structure for preventing clogging of plastic oil pipes and oil holes according to claim 1, characterized in that: The oil hole core-pulling pin (6) is provided in three parts, and the ends are designed in an arc shape.

5. The mold structure for preventing clogging of plastic oil pipes and oil holes according to claim 1, characterized in that: One end of the guide pin (5) is provided with a receiving step (10) for receiving the end of the oil hole core puller (6), and one end of the guide pin (5) is also provided with a connecting part (11).

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