Inclined hole core-pulling structure of injection molding product

Abstract

The inclined hole core-pulling structure comprises a first forming assembly, a second forming assembly and an ejector pin mechanism, the first forming assembly is used for forming an inclined hole of the product, the second forming assembly is used for forming a mounting part of the product, and the ejector pin mechanism is mounted on a lower mold. The second forming assembly is installed on the ejector pin mechanism, the first forming assembly is horizontally installed on the lower die in a sliding mode through the bottom end, and the first forming assembly is obliquely arranged and connected to the second forming assembly and the ejector pin mechanism in an inserted and sliding mode. The injection mold has the beneficial effects that in the demolding process, no extra driving source is used, meanwhile, the arrangement of ejector pins in the ejector pin mechanism cannot be influenced, the occupation of the internal space of the mold is reduced, the second molding assembly and the ejector pin mechanism can play a guiding and limiting role on the first molding assembly, and the mold is more stable. And therefore, the stability of the first forming assembly in the subsequent demolding process is greatly improved.

Description

Technical Field

[0001] The present application relates to the field of mold technology, and in particular to an inclined hole core-pulling structure for an injection molded product. Background Art

[0002] An injection mold is a tool used to produce plastic products; it also gives them a complete structure and precise dimensions. Injection molding is a processing method used for mass production of complex parts. Specifically, the process involves injecting heated, molten plastic into a mold cavity under high pressure using an injection molding machine. After cooling and solidification, the resulting molded product is formed.

[0003] like Figure 1 The figure shows an existing automotive component product 1. The outer shell of product 1 is provided with a mounting portion 101, and an inclined hole 102 is disposed outside of mounting portion 101. However, in the prior art, during the subsequent demolding process, inclined hole 102 requires a drive device to separate the molded component from inclined hole 102. The drive device is generally a hydraulic cylinder. This leads to the following drawbacks: First, the internal structure of the mold is compact, and installing the drive device consumes internal space, which also affects the arrangement and installation of the mold's ejector pin mechanism. Therefore, a core-pulling structure with an inclined hole in an injection molded product is proposed to address the aforementioned technical issues. Utility Model Content

[0004] One of the purposes of the present application is to provide an inclined hole core pulling structure for an injection molded product.

[0005] To achieve the above objectives, the technical solution adopted in the present application is: an inclined hole core pulling structure for an injection molded product, comprising a first molding component, a second molding component and an ejector mechanism, wherein the first molding component is used to mold the inclined hole of the product, the second molding component is used to mold the mounting part of the product, the ejector mechanism is installed on the lower mold, the second molding component is installed on the ejector mechanism, the first molding component is installed on the lower mold by horizontal sliding at the bottom end, the first molding component is tilted and inserted and slid on the second molding component and the ejector mechanism; when demolding, the ejector mechanism is suitable for driving the second molding component to move vertically upward so that the product is ejected from the lower mold; at this time, the first molding component is suitable for sliding horizontally under the action of the ejector mechanism, so that the first molding component slides tiltedly relative to the second molding component and the ejector mechanism and disengages from the molded inclined hole.

[0006] Preferably, the ejector mechanism and the second forming assembly are both provided with corresponding inclined grooves, and the first forming assembly is suitable for performing an oblique sliding fit with the inclined grooves.

[0007] Preferably, the second molding assembly is mounted on the ejector mechanism via a limiting device, and the limiting device is cooperatively connected to the lower mold, and the limiting device is suitable for performing a first process and a second process under the drive of the ejector mechanism, wherein in the first process: the ejector mechanism is suitable for driving the second molding assembly to move vertically upward through the limiting device so that the first molding assembly is disengaged from the inclined hole, and at this time the limiting device is locked to the ejector mechanism; in the second process: the limiting device is suitable for releasing the lock with the ejector mechanism and maintaining a stationary state under the action of the lower mold, and then the product is disengaged from the second molding assembly under the drive of the ejector mechanism.

[0008] Preferably, the limiting device includes a limiting plate and a snap structure, the second molding assembly is installed on the limiting plate, the limiting plate is vertically slidably installed on the lower mold, and the limiting plate is installed on the ejector mechanism through the snap structure; when performing the first process: the snap structure is suitable for locking the limiting plate to the ejector mechanism, and at this time the limiting plate and the ejector mechanism move synchronously; when performing the second process: the snap structure is suitable for releasing the lock of the limiting plate under the drive of the lower mold, and at this time the limiting plate moves vertically upward to the limit distance and remains stationary.

[0009] Preferably, the snap structure includes a locking block, a fixed block and an unlocking block, the locking block is horizontally elastically slidably installed on the limit plate, the fixed block is fixedly installed on the bottom end of the ejector mechanism, and the unlocking block is vertically installed in the lower mold and cooperates with the locking block; when performing the first process: the locking block is suitable for overlapping the top end of the fixed block under the action of elastic force, so that the limit plate is locked to the ejector mechanism; when performing the second process: the locking block is suitable for wedge-shaped extrusion cooperation with the unlocking block, so that the locking block slides and is misaligned with the fixed block, thereby releasing the lock of the limit plate.

[0010] Preferably, the sides of the unlocking block are respectively provided with connected inclined surfaces and vertical surfaces; when performing the first process: the card block is suitable for cooperating with the vertical surface, and thus the card block remains stationary; when performing the second process: the card block is suitable for cooperating with the inclined surface, and thus the card block is suitable for sliding under the guided extrusion of the inclined surface.

[0011] Preferably, the second forming assembly includes an upper column and a lower column connected to each other, the horizontal cross-section of the lower column is larger than the horizontal cross-section of the upper column, and the first forming assembly passes through the upper column and the lower column.

[0012] Preferably, the first forming assembly includes an upper rod and a lower rod connected to each other, the upper rod passes through the upper column, the lower rod passes through the lower column, the diameter of the upper rod is larger than the diameter of the lower rod, and the upper rod and the lower rod are detachably mounted.

[0013] Preferably, the top and side of the upper rod body are respectively provided with an avoidance groove and an installation groove that are interconnected, and the bottom end of the lower rod body is provided with a mounting block; during installation, the mounting block is suitable for cooperating with the mounting groove, and the upper rod body is suitable for cooperating with the avoidance groove, so that the upper rod body and the lower rod body are snap-fitted.

[0014] Preferably, the first molding component is slidably arranged at the bottom end of the lower mold through a slider, and the first molding component is arranged through the slider and is detachably installed with the slider; when disassembly is performed, the first molding component is suitable for being pulled out from the bottom end of the lower mold.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] The utility model sets the bottom end of the first molding component to slide horizontally with the lower mold, and the first molding component is matched with the second molding component and the ejector mechanism in an oblique sliding manner. Therefore, when demolding, the first molding component will slide to the left under the drive of the second molding component, that is, the first molding component will slide downwardly relative to the second molding component and the ejector mechanism, thereby causing the second molding component to be separated from the oblique hole of the product. During the entire demolding process, no additional driving source is used, and the arrangement of the ejector pins in the ejector mechanism will not be affected. The internal space occupied by the mold is greatly reduced. In addition, the second molding component and the ejector mechanism can play a guiding and limiting role for the first molding component, thereby greatly improving the stability of the first molding component in the subsequent demolding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the existing product structure of the utility model.

[0018] Figure 2 This is a schematic diagram of the product of the present invention being located in the lower mold.

[0019] Figure 3 This is a schematic diagram of the limiting device of the present utility model.

[0020] Figure 4 This is a schematic diagram of the product of the utility model when it is matched with two molding components.

[0021] Figure 5 This is a schematic diagram of the first molding component of the present invention being separated.

[0022] Figure 6 This is a schematic diagram of the specific structure of the two molding components of the present invention.

[0023] Figure 7 This is a schematic diagram of the upper rod body and the lower rod body of the utility model when they are disassembled.

[0024] Figure 8 It is a three-dimensional schematic diagram of the two forming components of the present invention when they cooperate with the limiting device and the mounting seat.

[0025] Figure 9 This is a schematic diagram of the buckle structure of the utility model.

[0026] Figure 10 This is a schematic cross-sectional view of the limiting device of the present invention.

[0027] Figure 11 This is an enlarged structural diagram of point A of the present invention.

[0028] Figure 12 This is a schematic diagram of two molding components of the present invention being demoulded in sequence.

[0029] In the figure: 1. Product; 101. Mounting part; 102. Oblique hole; 2. Lower mold; 3. Ejector mechanism; 301. Ejector plate; 4. First molding component; 401. Upper rod; 402. Lower rod; 5. Second molding component; 501. Upper column; 502. Lower column; 6. Limiting device; 601. Limiting plate; 602. Buckle structure; 6021. Block; 6022. Unlocking block; 6023. Fixing block; 7. Mounting seat; 8. Slider; 9. Mounting block; 10. Avoidance groove; 11. Mounting groove; 12. Inclined surface; 13. Vertical surface; 14. Guide rod. DETAILED DESCRIPTION

[0030] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0031] In the description of this application, it should be noted that for directional words, such as the terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and so on, the directions and positional relationships indicated are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of this application.

[0032] It should be noted that the terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0033] One of the preferred embodiments of this application is as follows: Figures 1 to 12 As shown, an inclined hole core-pulling structure of an injection molded product includes an upper mold, a lower mold 2, a first molding component 4, a second molding component 5 and a pin mechanism 3, and the upper mold is not shown in the figure. The upper mold, the lower mold 2, the first molding component 4 and the second molding component 5 are used to form the cavity of the molding product 1, wherein the first molding component 4 is used to form the inclined hole 102 of the molding product 1, and the second molding component 5 is used to form the mounting portion 101 of the molding product 1. The pin mechanism 3 is installed on the lower mold 2, and the second molding component 5 is installed on the pin mechanism 3. The first molding component 4 is installed on the lower mold 2 by sliding horizontally at the bottom end. The first molding component 4 is tilted and inserted and slidably connected to the second molding component 5 and the pin mechanism 3.

[0034] It should be noted that the ejector mechanism 3 is a commonly used ejection structure in the mold, which includes an ejector plate 301 and a driving device. The driving device generally adopts a hydraulic cylinder. A plurality of fine ejectors are arranged at the top of the ejector plate 301, and the ejector plate 301 is vertically slidably installed in the lower mold 2. The driving device is installed in the lower mold 2 and the output end is connected to the ejector plate 301. The second molding component 5 is installed on the ejector plate 301 of the ejector mechanism 3, and the first molding component 4 is inserted and slidably connected to the ejector plate 301 and the second molding component 5.

[0035] It should be noted that the bottom end of the first molding assembly 4 is arranged to slide horizontally with the lower mold 2, and the first molding assembly 4 is inserted and slidably connected to the second molding assembly 5, that is, the first molding assembly 4, the second molding assembly 5 and the ejector mechanism 3 are all in an inclined sliding cooperation. Therefore, when demoulding, the driving device drives the ejector plate 301 to move upward, and at this time, the second molding assembly 5 will also move upward with the ejector plate 301, so that the product 1 is ejected from the lower mold 2 under the action of the second molding assembly 5 and the ejector, as shown in FIG. Figure 5 As shown, at this time, the first molding component 4 slides to the left as a whole. Since the second molding component 5 moves downward, the first molding component 4 slides downward relative to the second molding component 5 and the ejector mechanism 3, thereby causing the second molding component 5 to disengage from the inclined hole 102 of the product 1.

[0036] It can be seen that during the entire demolding process of the inclined hole 102, no additional drive source is used, that is, it can be achieved only through the action of the ejector mechanism 3; at the same time, the first molding component 4 is inserted and slid into the second molding component 5 and the ejector mechanism 3, making the entire structure compact and not affecting the arrangement of the ejectors in the ejector mechanism 3, greatly reducing the space occupied by the internal mold and making the structure more rational. On the other hand, we know that the inclined hole 102 itself is relatively small, so the corresponding first molding component 4 will be relatively thin. At this time, the second molding component 5 and the ejector mechanism 3 can play a guiding and limiting role for the first molding component 4, thereby greatly improving the stability of the first molding component 4 in the subsequent demolding process, that is, the first molding component 4 is not easy to shift or deform, thereby ensuring the precision and stability of the molding of the inclined hole 102.

[0037] Specifically, corresponding inclined grooves are provided in the second molding component 5 and the ejector mechanism 3, and the first molding component 4 and the inclined grooves are inclined and slidably matched, thereby realizing the plug-in and sliding fit between the first molding component 4 and the second molding component 5 and the ejector mechanism 3.

[0038] In the above embodiment, the demoulding between the first molding component 4 and the inclined hole 102 is achieved, but the second molding component 5 and the mounting portion 101 are still connected, which will still affect the subsequent demoulding of the entire product 1.

[0039] Therefore, in order to solve the above technical problems, in one embodiment of the present application, Figure 3 As shown, the second molding component 5 is installed on the ejector mechanism 3 through the limiting device 6, specifically on the ejector plate 301 of the ejector mechanism 3, and the limiting device 6 is cooperatively connected with the lower mold 2. The limiting device 6 can perform the first process and the second process under the drive of the ejector mechanism 3.

[0040] Specifically, the first process: Figure 12 As shown in (a), the ejector mechanism 3 can drive the second molding component 5 to move vertically upward through the limiting device 6, so that the first molding component 4 is separated from the inclined hole 102. At this time, the limiting device 6 is locked to the ejector mechanism 3, that is, the second molding component 5 can move upward synchronously with the ejector plate 301 through the limiting device 6. At this time, the second molding component 5 and the mounting portion 101 are still connected. The second process: Figure 12 As shown in (b), during the process of the second molding component 5 continuing to move upward, the limiting device 6 will release the lock between it and the ejector plate 301 under the action of the lower mold 2 and remain stationary. Then the ejector plate 301 continues to move upward, so that the inclined hole 102 on the product 1 can be separated from the second molding component 5 under the action of the ejector.

[0041] As a further description of the above embodiment: the limiting device 6 includes a limiting plate 601 and a snap-fit ​​structure 602, the second molding component 5 is installed on the limiting plate 601, the limiting plate 601 is vertically slidably installed on the lower mold 2, and the limiting plate 601 is installed on the ejector mechanism 3 through the snap-fit ​​structure 602.

[0042] Specifically, such as Figure 3 and Figure 9 As shown, to facilitate installation, a mounting seat 7 can be bolted to the inner bottom end of the lower mold 2, and a limit plate 601 is vertically slidably mounted on the top of the mounting seat 7 via a guide rod 14. During the first process, the snap-fit ​​structure 602 locks the limit plate 601 to the ejector plate 301, and the second molding assembly 5 moves synchronously with the ejector plate 301. During the second process, the snap-fit ​​structure 602, driven by the lower mold 2, releases the lock on the limit plate 601. At this time, the limit plate 601 moves up to its maximum height under the action of the guide rod 14. Since the second molding assembly 5 is still connected to the mounting portion 101, the limit plate 601 is stationary. Subsequently, the ejector plate 301 continues to move upward, and the product 1 can be separated from the second molding assembly 5.

[0043] like Figure 10 and Figure 11 As shown, the snap structure 602 includes a clamping block 6021, a fixing block 6023 and an unlocking block 6022. The clamping block 6021 is installed on the side of the limit plate 601 through a spring for horizontal elastic sliding. The fixing block 6023 is fixedly installed on the bottom end of the ejector plate 301. The unlocking block 6022 is vertically installed on the mounting seat 7 on the lower mold 2 and cooperates with the clamping block 6021.

[0044] It is understood that during the first process and before demoulding, the clamping block 6021 extends out of the limit plate 601 under the elastic force of the spring. At this time, the bottom end of the clamping block 6021 abuts against the top end of the fixed block 6023, that is, the clamping block 6021 overlaps the fixed block 6023. We define this state as the initial state, and the clamping block 6021 can lock the limit plate 601 on the ejector plate 301. During the second process: as the limit plate 601 continues to move upward along with the ejector plate 301, the clamping block 6021 and the unlocking block 6022 are pressed into a wedge shape, thereby retracting the clamping block 6021 into the side of the limit plate 601 until the clamping block 6021 slides and is misaligned with the fixed block 6023, thereby releasing the lock on the limit plate 601.

[0045] Specifically, such as Figure 11As shown, the side parts of the unlocking block 6022 are respectively provided with connected inclined surfaces 12 and vertical surfaces 13. During the first process: the clamping block 6021 cooperates with the vertical surface 13, and thus the clamping block 6021 remains stationary; during the second process: the clamping block 6021 cooperates with the inclined surface 12, and thus the clamping block 6021 can slide under the guiding extrusion of the inclined surface 12. Of course, the end of the clamping block 6021 can also be set as a wedge surface that cooperates with the inclined surface 12 to further improve the smoothness of the cooperation between the two. In addition, in order to make the ejector plate 301 move downward and reset later, at this time, the fixed block 6023 moves downward and can cooperate with the wedge surface of the clamping block 6021, and thus the clamping block 6021 is extruded and slides into the limiting plate 601. Finally, the fixed block 6023 can cross over the clamping block 6021, and the clamping block 6021 will reset and extend out of the limiting plate 601 under the action of elastic force, and thus return to the above initial state.

[0046] Further, as Figure 11 shown, the fixed block 6023 preferably adopts a "C"-shaped, i.e., semi-closed structure, and the fixed block 6023 is sleeved and installed outside the unlocking block 6022. In this way, a sliding fit connection is also formed between the fixed block 6023 and the unlocking block 6022, and thus a limiting and guiding effect can also be exerted on the limiting plate 601 and the mounting seat 7, making the sliding installation of the limiting plate 601 more stable.

[0047] In one embodiment of the present application, as Figure 1 shown, we know that the inclined hole 102 is located at the center position of the mounting portion 101, and the first forming component 4 is inserted and slides on the second forming component 5. Therefore, the cooperation position of the two is located at the upper part of the second forming component 5, that is to say, the lower part of the first forming component 4 has no limit, and thus the stability is relatively poor. Therefore, as Figure 6 shown, the second forming component 5 includes a connected upper column 501 and a lower column 502. The horizontal cross-section of the lower column 502 is larger than the horizontal cross-section of the upper column 501. That is to say, the length of the horizontal cross-section of the lower column 502 is longer. In this way, the first forming component 4 can not only penetrate through the upper column 501, but also penetrate through the lower column 502, and thus the upper end and the lower end of the first forming component 4 can be limited, greatly improving the stability. Specifically, corresponding inclined slots are provided in the ejector plate 301, the lower column 502 and the upper column 501, and the first forming component 4 is inserted and slidably fitted with the three inclined slots, and thus the first forming component 4 is limited to improve the stability. ]

[0048] Further, as Figure 3 and Figure 8As shown, the first molding component 4 near its bottom end can also penetrate the limiting plate 601 and the mounting seat 7. At this time, the mounting seat 7, limiting plate 601, ejector plate 301, lower column 502, and upper column 501 from bottom to top can all play a role in covering and limiting the first molding component 4, thereby protecting the first molding component 4, which is already thin and fragile, and greatly improving the service life of the first molding component 4. Of course, since the mounting seat 7 is fixed, the inclined groove that cooperates with the first molding component 4 must be of sufficient length to provide a clearance space for the movement of the first molding component 4.

[0049] Furthermore, we know that the first molding component 4 itself is thin and long. If the entire component 4 is made of uniform thin size, the overall structure will be very weak. Moreover, the portion near the inclined hole 102 is easily damaged. If the entire first molding component 4 is replaced when damaged, it will be a waste. Figure 6 As shown, the first molding assembly 4 includes an upper rod 401 and a lower rod 402 connected to each other. The upper rod 401 passes through the upper column 501, and the lower rod 402 passes through the lower column 502. The diameter of the upper rod 401 is larger than the diameter of the lower rod 402, and the upper rod 401 and the lower rod 402 are detachable and installable.

[0050] It can be understood that the lower rod body 402 is relatively thicker than the upper rod body 401, so that the structural strength of the entire first molding assembly 4 will be better, and the upper rod body 401 that specifically participates in molding can be detachably installed on the lower rod body 402. In this way, when the upper rod body 401 is damaged or deformed, it is only necessary to replace the upper rod body 401 without replacing the entire first molding assembly 4, thereby saving costs and improving the convenience of maintenance.

[0051] In the above embodiment, if Figure 7 As shown, the installation method between the upper rod body 401 and the lower rod body 402 is as follows: the top and side of the upper rod body 401 are respectively provided with an avoidance groove 10 and an installation groove 11 that are interconnected, and the bottom end of the lower rod body 402 is provided with a mounting block 9.

[0052] It can be understood that during installation, the mounting block 9 at the bottom end of the upper rod body 401 is inserted into the mounting groove 11 on the side of the lower rod body 402, and the avoidance groove 10 is for the upper rod body 401 to move. When the mounting block 9 is inserted into the mounting groove 11, the upper rod body 401 and the lower rod body 402 can be snapped into place for installation, which is simple and convenient.

[0053] Furthermore, in order to facilitate the installation and disassembly of the entire first molding component 4, the bottom end of the lower rod body 402 of the first molding component 4 is slidably set at the bottom end of the lower mold 2 through the slider 8, that is, it is slidably set in the mounting seat 7; and the first molding component 4 passes through the slider 8 and can be detachably installed with the slider 8 by bolts, so when disassembling, it is only necessary to loosen the bolts at the bottom end of the slider 8, and then the entire first molding component 4 can be pulled out from the bottom end of the lower mold 2.

[0054] It should be noted that the upper rod body 401 and the lower rod body 402 are installed by means of a snap-fitting manner. Since the mounting groove 11 is an open structure, the mounting block 9 and the mounting groove 11 are also easy to loosen. Therefore, the connection position between the upper rod body 401 and the lower rod body 402 can be located inside the lower column 502, that is, the open mounting groove 11 is closed by the lower column 502, so that the connection between the upper rod body 401 and the lower rod body 402 can be made more stable.

[0055] The working principle of this utility model is:

[0056] First, as Figure 12 As shown in (a), the driving device drives the ejector plate 301 to move upward, and the product 1 is ejected from the lower mold 2 under the action of the ejector and the second molding component 5. At the same time, the first molding component 4 slides to the left under the drive of the second molding component 5, that is, the first molding component 4 slides downward relative to the second molding component 5 and the ejector plate 301, thereby causing the second molding component 5 to disengage from the inclined hole 102 of the product 1.

[0057] like Figure 12 As shown in (b) in the figure, the driving device drives the ejector plate 301 to continue to move upward. At this time, the clamping block 6021 will move from the vertical surface 13 to cooperate with the inclined surface 12. Then, under the squeezing action of the inclined surface 12, the clamping block 6021 will retract into the side of the limit plate 601 until the clamping block 6021 slides and misaligns with the fixed block 6023. This will release the lock on the limit plate 601. At this time, the limit plate 601 has just moved up to its maximum height under the action of the guide rod 14. Since the second molding assembly 5 is still connected to the mounting portion 101, the second molding assembly 5 will not fall under the action of gravity, but will remain in this static state. Finally, the ejector plate 301 continues to move upward, so that the ejector pins on the ejector plate 301 can lift the product 1 and separate it from the second molding assembly 5, thereby completing the ejection and demolding process of the product 1.

[0058] The above describes the basic principles, main features, and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-described embodiments. The above-described embodiments and the specification merely illustrate the principles of the present application. Various changes and improvements may be made to the present application without departing from the spirit and scope of the present application. These changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. An inclined hole core pulling structure for an injection molded product, characterized in that: include: A first molding assembly, a second molding assembly, and an ejector mechanism, wherein the first molding assembly is used to mold an oblique hole of a product, the second molding assembly is used to mold a mounting portion of a product, the ejector mechanism is mounted on a lower mold, and the second molding assembly is mounted on the ejector mechanism, the first molding assembly is mounted on the lower mold by sliding horizontally at its bottom end, and the first molding assembly is tilted and inserted and slidably engaged with the second molding assembly and the ejector mechanism; During demolding, the ejector mechanism is suitable for driving the second molding component to move vertically upward so that the product is ejected from the lower mold; at this time, the first molding component is suitable for sliding horizontally under the action of the ejector mechanism, so that the first molding component slides obliquely relative to the second molding component and the ejector mechanism and disengages from the formed inclined hole.

2. The inclined hole core-pulling structure of the injection molded product according to claim 1, characterized in that: The ejector mechanism and the second forming assembly are both provided with corresponding inclined grooves, and the first forming assembly is suitable for performing an oblique sliding fit with the inclined grooves.

3. The inclined hole core-pulling structure of the injection molded product according to claim 1 or 2, characterized in that: The second molding assembly is mounted on the ejector mechanism via a limiting device, and the limiting device is cooperatively connected with the lower mold. The limiting device is suitable for performing the first process and the second process under the drive of the ejector mechanism, wherein In the first process, the ejector mechanism is adapted to drive the second molding assembly to move vertically upward through the limiting device, so that the first molding assembly is separated from the inclined hole. At this time, the limiting device is locked to the ejector mechanism. In the second process, the limiting device is adapted to release the lock with the ejector mechanism and maintain a stationary state under the action of the lower mold, and then the product is separated from the second molding assembly under the drive of the ejector mechanism.

4. The inclined hole core-pulling structure of the injection molded product according to claim 3, characterized in that: The limiting device includes a limiting plate and a buckle structure, the second molding assembly is mounted on the limiting plate, the limiting plate is vertically slidably mounted on the lower mold, and the limiting plate is mounted on the ejector mechanism through the buckle structure; During the first process: the snap-fit ​​structure is suitable for locking the limit plate to the ejector mechanism, and at this time the limit plate and the ejector mechanism move synchronously; during the second process: the snap-fit ​​structure is suitable for releasing the lock of the limit plate under the drive of the lower mold, and at this time the limit plate moves vertically upward to the limit distance and remains stationary.

5. The inclined hole core-pulling structure of the injection molded product according to claim 4, characterized in that: The buckle structure includes a clamping block, a fixing block and an unlocking block. The clamping block is horizontally elastically slidably mounted on the limit plate, the fixing block is fixedly mounted on the bottom end of the ejector mechanism, and the unlocking block is vertically mounted in the lower mold and cooperates with the clamping block. During the first process: the locking block is adapted to overlap the top end of the fixed block under the action of elastic force, so that the limit plate is locked to the ejector mechanism; during the second process: the locking block is adapted to perform wedge-shaped extrusion cooperation with the unlocking block, so that the locking block slides and is misaligned with the fixed block, thereby releasing the lock on the limit plate.

6. The inclined hole core-pulling structure of the injection molded product according to claim 5, characterized in that: The sides of the unlocking block are respectively provided with connected inclined surfaces and vertical surfaces; when performing the first process: the card block is suitable for cooperating with the vertical surface, and thus the card block remains stationary; when performing the second process: the card block is suitable for cooperating with the inclined surface, and thus the card block is suitable for sliding under the guided extrusion of the inclined surface.

7. The inclined hole core-pulling structure of the injection molded product according to claim 1, characterized in that: The second molding assembly includes an upper cylinder and a lower cylinder connected to each other. The horizontal cross-section of the lower cylinder is larger than the horizontal cross-section of the upper cylinder. The first molding assembly passes through the upper cylinder and the lower cylinder.

8. The inclined hole core-pulling structure of the injection molded product according to claim 7, characterized in that: The first forming assembly includes an upper rod and a lower rod connected to each other, the upper rod passes through the upper column, the lower rod passes through the lower column, the diameter of the upper rod is larger than the diameter of the lower rod, and the upper rod and the lower rod are detachably mounted.

9. The inclined hole core-pulling structure of the injection molded product according to claim 8, characterized in that: The top and side of the upper rod body are respectively provided with an avoidance groove and an installation groove that are interconnected, and the bottom end of the lower rod body is provided with a mounting block; during installation, the mounting block is suitable for cooperating with the mounting groove, and the upper rod body is suitable for cooperating with the avoidance groove, so that the upper rod body and the lower rod body are snap-fitted.

10. The inclined hole core-pulling structure of the injection molded product according to claim 9, characterized in that: The first molding component is slidably arranged at the bottom end of the lower mold through a slider. The first molding component is arranged through the slider and is detachably installed with the slider. When disassembling, the first molding component is suitable for being pulled out from the bottom end of the lower mold.

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