An inclined hole core pulling device for injection mold

Abstract

The present application discloses an inclined hole core pulling device for an injection mold, comprising a mold, a lower mold, a first molding component, a second molding component and an ejector mechanism, wherein the upper mold, the lower mold, the first molding component and the second molding component are used for molding the cavity of the product, wherein the first molding component is used for molding the inclined hole of the product, the second molding component is used for the mounting portion 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, and the first molding component is tilted and inserted and slid on the second molding component. The beneficial effects of the present application: in the process of demolding, no additional driving source is used, and at the same time, it will not affect the ejector arrangement in the ejector mechanism, reducing the occupation of the internal space of the mold, and the second molding component 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.

Description

Technical Field

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

[0002] Injection molds are tools for producing plastic products; they are also tools that give plastic products a complete structure and precise dimensions. Injection molding is a processing method used in mass production of certain parts with complex shapes. Specifically, it refers to the process of injecting heated and melted plastic into the mold cavity under high pressure by an injection molding machine, and then cooling and solidifying to obtain a molded product.

[0003] like Figure 1 As shown, an existing automotive component product 1 is provided with a mounting portion 101 on the outer shell of the product 1, and an oblique hole 102 is provided outside the mounting portion 101. In the prior art, in the subsequent demolding process, the oblique hole 102 needs to be driven by a driving device to separate and demold the molding component from the oblique hole 102, and the driving device generally adopts a hydraulic cylinder; thus, there are the following shortcomings: first, the internal structure of the mold is compact, and the installation of the driving device will occupy the internal space of the mold, and will also affect the arrangement and installation of the ejector mechanism of the mold. Therefore, an oblique hole core pulling device for an injection mold is proposed to solve the above technical problems. Summary of the invention

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

[0005] To achieve the above objectives, the technical solution adopted in the present application is: an inclined hole core pulling device for an injection mold, comprising a mold, a lower mold, a first molding component, a second molding component and an ejector mechanism, the upper mold, the lower mold, the first molding component and the second molding component are used for the cavity of a molding product, wherein the first molding component is used for molding the inclined hole of the product, the second molding component is used for molding the mounting portion 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, the first molding component is tilted and inserted and slid on the second molding component; 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 traction of the second molding component, so that the first molding component slides tilted relative to the second molding component and disengages from the molded inclined hole.

[0006] Preferably, the second molding component is installed on the ejector mechanism through a limiting device, and the limiting device is cooperatively connected with 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 component to move vertically upward through the limiting device so that the first molding component is disengaged from the inclined hole, and the limiting device is locked to the ejector mechanism at this time; in the second process: the limiting device is suitable for releasing the lock with the ejector mechanism and keeping a stationary state under the action of the lower mold, and then the product is disengaged from the second molding component under the drive of the ejector mechanism.

[0007] Preferably, the limiting device includes a limiting plate and a snap 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 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.

[0008] Preferably, 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; when performing the first process: the clamping block is suitable for overlapping the top end of the fixing block under the action of elastic force, so that the limit plate is locked to the ejector mechanism; when performing the second process: the clamping block is suitable for wedge-shaped extrusion cooperation with the unlocking block, so that the clamping block slides and is misaligned with the fixing block, thereby releasing the lock on the limit plate.

[0009] 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, so that the card block remains stationary; when performing the second process: the card block is suitable for cooperating with the inclined surface, and then the card block is suitable for sliding under the guided extrusion of the inclined surface.

[0010] Preferably, the second molding component comprises an upper cylinder and a lower cylinder which are connected to each other, the horizontal cross section of the lower cylinder is larger than the horizontal cross section of the upper cylinder, and the first molding component passes through the upper cylinder and the lower cylinder.

[0011] 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 smaller than the diameter of the lower rod, and the upper rod and the lower rod are detachably mounted.

[0012] Preferably, the top and side of the lower rod body are respectively provided with an avoidance groove and an installation groove which are interconnected, and the bottom end of the upper 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.

[0013] Preferably, the first molding component is slidably disposed at the bottom end of the lower mold through a slider, and the first molding component is penetrated by the slider and detachably mounted with the slider; when disassembling, the first molding component is suitable for being pulled out from the bottom end of the lower mold.

[0014] Preferably, the ejector mechanism comprises an ejector plate and a driving device, the ejector plate is vertically slidably installed in the lower mold, the driving device is installed in the lower mold and the output end is connected to the ejector plate, and the second molding assembly is installed on the ejector plate.

[0015] Compared with the prior art, the beneficial effects of this application are:

[0016] The present invention arranges the bottom end of the first molding component to slide horizontally with the lower mold, and the first molding component and the second molding component are matched with each other in an inclined 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 downward in an inclined manner relative to the second molding component, thereby causing the second molding component to be separated from the inclined 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 pin mechanism will not be affected, thereby greatly reducing the occupancy of the internal space of the mold, and the second molding component 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 It is a schematic diagram of the existing product structure of the present invention.

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

[0019] Figure 3 It is a schematic diagram of the limiting device of the present invention.

[0020] Figure 4It is a schematic diagram of the product of the present invention when it cooperates with two molding components.

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

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

[0023] Figure 7 It is a schematic diagram of the upper rod body and the lower rod body of the present invention when they are disassembled.

[0024] Figure 8 It is a three-dimensional schematic diagram of the cooperation between the two molding components, the limiting device and the mounting seat of the present invention.

[0025] Fig. 9 It is a schematic diagram of the buckle structure of the present invention.

[0026] Fig.10 It is a schematic cross-sectional structural diagram of the limiting device of the present invention.

[0027] Fig.11 It is a schematic diagram of the enlarged structure of point A of the present invention.

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

[0029] In the figure: 1. product; 101. mounting portion; 102. inclined hole; 2. lower die; 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. clamping 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 the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific scope of protection of the present application.

[0032] It should be noted that the terms "first", "second", etc. in the description and claims of the present 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 the present application is as follows: Figures 1 to 12 As shown, an inclined hole core pulling device for an injection mold includes an upper mold, a lower mold 2, a first molding component 4, a second molding component 5 and an ejector mechanism 3, and the upper mold is not shown in the figure, which is also common knowledge known to those skilled in the art. 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 molded product 1, wherein the first molding component 4 is used to form the inclined hole 102 of the molded product 1, the second molding component 5 is used to form the mounting portion 101 of the molded product 1, the ejector mechanism 3 is installed on the lower mold 2, the second molding component 5 is installed on the ejector mechanism 3, the first molding component 4 is installed on the lower mold 2 by horizontal sliding at the bottom, and the first molding component 4 is tilted and inserted and slidable on the second molding component 5.

[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, and 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, and the second molding component 5 is installed on the ejector plate 301 of the ejector mechanism 3.

[0035] It should be known that the bottom end of the first molding component 4 is horizontally slidably arranged with the lower mold 2, and the first molding component 4 is inserted and slidably connected to the second molding component 5, that is, the first molding component 4 and the second molding component 5 are slidably matched with each other. Therefore, when demoulding, the driving device drives the ejector plate 301 to move upward, and at this time, the second molding component 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 component 5 and the ejector. Figure 5As 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, thereby causing the second molding component 5 to disengage from the inclined hole 102 of the product 1.

[0036] It can be seen that in the whole demoulding process of the inclined hole 102, no additional driving source is used, that is, it can be realized only through the action of the ejector mechanism 3; at the same time, the first molding component 4 is inserted and slid in the second molding component 5, so that the whole structure is compact, and will not affect the arrangement of the ejectors in the ejector mechanism 3, which greatly reduces the occupation of the internal space of the mold and makes the structure more reasonable. 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, and at this time the second molding component 5 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 demoulding process, that is, the first molding component 4 is not easy to shift and deform, thereby ensuring the precision and stability of the molding of the inclined hole 102.

[0037] In the above embodiment, 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.

[0038] Therefore, in order to solve the above technical problems, in one embodiment of the present application, Figure 3 As shown, the second molding assembly 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.

[0039] Specifically, the first process: Fig.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, and 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, and the second molding component 5 and the mounting portion 101 are still connected. The second process: Fig.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 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.

[0040] 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 .

[0041] Specifically, Figure 3 and Fig. 9 As shown, for the convenience of installation: the mounting seat 7 can be installed at the inner bottom end of the lower mold 2 by bolts, and the limit plate 601 is installed at the top of the mounting seat 7 by vertical sliding through the guide rod 14. When the first process is performed: the buckle structure 602 will lock the limit plate 601 on the ejector plate 301, and the second molding component 5 will move synchronously with the ejector plate 301. When the second process is performed: the buckle structure 602 will release the lock of the limit plate 601 under the drive of the lower mold 2, and the limit plate 601 will just move up to the maximum height under the action of the guide rod 14. Since the second molding component 5 is still connected between the mounting portion 101, the limit plate 601 will be in a stationary state at this time; then, the ejector plate 301 continues to move up, and then the product 1 can be separated from the second molding component 5.

[0042] like Fig.10 and Fig.11 As shown, the buckle 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 limiting 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 on the ejector mechanism 3. The unlocking block 6022 is vertically installed on the mounting seat 7 on the lower mold 2 and cooperates with the clamping block 6021.

[0043] It is understandable that, during the first process and before demoulding, the clamping block 6021 will extend out of the limit plate 601 under the elastic force of the spring, and 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 set this state as the initial state, and then the limit plate 601 can be locked on the ejector plate 301 under the action of the clamping block 6021. During the second process: as the limit plate 601 continues to move upward with the ejector plate 301, the clamping block 6021 will perform wedge-shaped extrusion cooperation with the unlocking block 6022, and then the clamping block 6021 will be retracted to the side of the limit plate 601 until the clamping block 6021 slides and is misaligned with the fixed block 6023, so that the lock of the limit plate 601 can be released.

[0044] Specifically, Fig.11As shown, the side parts of the unlocking block 6022 are respectively provided with a connected inclined surface 12 and a vertical surface 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 and 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 enable the fixing block 6023 to move downward and cooperate with the wedge surface of the clamping block 6021 when the ejector plate 301 moves downward and resets later, so as to squeeze and slide the clamping block 6021 and retract it into the limiting plate 601. Finally, the fixing 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 then return to the above initial state.

[0045] Further, as Fig.11 shown, the fixing block 6023 is preferably in a "C" shape, that is, a semi-closed structure, and the fixing block 6023 is sleeved and installed outside the unlocking block 6022. In this way, a sliding fit connection is also formed between the fixing block 6023 and the unlocking block 6022, which can also play a role in limiting and guiding between the limiting plate 601 and the mounting seat 7, making the sliding installation of the limiting plate 601 more stable.

[0046] In one of the embodiments of the present application, as Figure 1 shown, we know that the inclined hole 102 is located at the center position of the installation part 101, and the first forming component 4 is inserted and slid on the second forming component 5. Therefore, the cooperation position of the two is 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 cylinder 501 and a lower cylinder 502. The horizontal cross-section of the lower cylinder 502 is larger than the horizontal cross-section of the upper cylinder 501, that is to say, the length of the horizontal cross-section of the lower cylinder 502 is longer. In this way, the first forming component 4 can not only penetrate through the upper cylinder 501, but also penetrate through the lower cylinder 502, so that both the upper end and the lower end of the first forming component 4 can be limited, greatly improving the stability. Of course, corresponding inclined grooves are provided in the ejector plate 301, the lower cylinder 502 and the upper cylinder 501, and the first forming component 4 is inserted and slidably matched with the three inclined grooves to limit the first forming component to improve the stability.

[0047] Further, as Figure 3 and Figure 8As shown, the first molding component 4 near the bottom can also penetrate the limiting plate 601 and the mounting seat 7, and then the mounting seat 7, the limiting plate 601, the ejector plate 301, the lower column 502 and the upper column 501 from bottom to top can all play a role of covering and limiting the first molding component 4, and then play a role of protecting the first molding component 4 which is thin and weak, so that the service life of the first molding component 4 is greatly improved. Of course, since the mounting seat 7 is fixed, the length of the inclined groove matched with the first molding component 4 must be sufficient, so as to provide an escape space for the movement of the first molding component 4.

[0048] 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 also 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 smaller than the diameter of the lower rod 402, and the upper rod 401 and the lower rod 402 are detachably mounted.

[0049] 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 can be better, and the upper rod body 401 that specifically participates in the molding is detachably installed on the lower rod body 402. In this way, when the upper rod body 401 is damaged or deformed, only the upper rod body 401 needs to be replaced, and there is no need to replace the entire first molding assembly 4, thereby saving costs and improving the convenience of maintenance.

[0050] 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 lower rod body 402 are respectively provided with an avoidance groove 10 and an installation groove 11 that are interconnected, and the bottom end of the upper rod body 401 is provided with a mounting block 9.

[0051] It can be understood that when installing, 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 installed by snapping together, which is simple and convenient.

[0052] 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 is passed through the slider 8 and can be detachably installed with the slider 8 by bolts, so when disassembling, you only need 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.

[0053] 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.

[0054] The working principle of the present invention is:

[0055] First, Fig.12 As shown in (a), the driving device drives the ejector plate 301 to move upward, and the product 1 is ejected out of 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 driven by the second molding component 5, that is, the first molding component 4 slides downward relative to the second molding component 5, thereby causing the second molding component 5 to disengage from the inclined hole 102 of the product 1.

[0056] like Fig.12 As shown in (b), the driving device drives the ejector plate 301 to continue to move upward, and the block 6021 will move from the vertical surface 13 to cooperate with the inclined surface 12, and then the block 6021 will retract into the side of the limit plate 601 under the extrusion of the inclined surface 12, until the block 6021 slides and misaligns with the fixed block 6023, so that the locking of the limit plate 601 can be released. At this time, the limit plate 601 just moves up to the maximum height under the action of the guide rod 14. Since the second molding component 5 is still connected to the mounting portion 101, the second molding component 5 will not fall under the action of gravity, but remain in this static state. Finally, the ejector plate 301 continues to move upward, so that the ejector on the ejector plate 301 can lift the product 1 and separate it from the second molding component 5, thereby completing the ejection and demoulding process of the product 1.

[0057] 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 by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and 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 attached claims and their equivalents.

Claims

1. An inclined hole core pulling device for an injection mold, characterized in that: include: An upper mold, a lower mold, a first molding component, a second molding component and an ejector mechanism, wherein the upper mold, the lower mold, the first molding component and the second molding component are used for molding a cavity of a product, wherein the first molding component is used for molding an inclined hole of a product, and the second molding component is used for molding a mounting portion of a product, the ejector mechanism is installed on the lower mold, and the second molding component is installed on the ejector mechanism, the first molding component is installed on the lower mold by horizontally sliding at the bottom end, and the first molding component is tilted and inserted and slidably connected to the second molding component; During demoulding, 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 traction of the second molding component, so that the first molding component slides obliquely relative to the second molding component and disengages from the formed inclined hole; The second molding component is installed on the ejector mechanism through a limiting device, and the limiting device is connected with the lower mold. 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 component to move vertically upward through the limiting device, so that the first molding component is separated from the inclined hole, and the limiting device is locked to the ejector mechanism at this time; in the second process: the limiting device is suitable for releasing the lock with the ejector mechanism and keeping a stationary state under the action of the lower mold, and then the product is separated from the second molding component under the drive of the ejector mechanism; The limiting device comprises 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; when the first process is performed: the buckle structure is suitable for locking the limiting plate on the ejector mechanism, and at this time, the limiting plate and the ejector mechanism move synchronously; when the second process is performed: the buckle structure is suitable for unlocking 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; The buckle structure includes a clamping block, a fixing block and an unlocking block, wherein 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 die and cooperates with the clamping block; when performing the first process: the clamping block is suitable for overlapping the top end of the fixing block under the action of elastic force, so that the limit plate is locked to the ejector mechanism; when performing the second process: the clamping block is suitable for wedge-shaped extrusion cooperation with the unlocking block, so that the clamping block slides and is misaligned with the fixing block, thereby releasing the lock on the limit plate; The side of the unlocking block is respectively provided with a connected inclined surface and a vertical surface; when performing the first process: the card block is suitable for cooperating with the vertical surface, so that the card block remains stationary; when performing the second process: the card block is suitable for cooperating with the inclined surface, so that the card block is suitable for sliding under the guidance and extrusion of the inclined surface; The second molding component 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, and the first molding component runs through the upper cylinder and the lower cylinder.

2. The inclined hole core pulling device of the injection mold according to claim 1, 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 smaller than the diameter of the lower rod, and the upper rod and the lower rod are detachably mounted.

3. The inclined hole core pulling device of the injection mold according to claim 2, characterized in that: The top and side of the lower rod body are respectively provided with an avoidance groove and an installation groove which are interconnected, and the bottom end of the upper 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.

4. The inclined hole core pulling device of the injection mold according to claim 3, characterized in that: The first molding component is slidably disposed at the bottom end of the lower mold through a slider, and the first molding component is penetrated by the slider and detachably mounted with the slider; when disassembling, the first molding component is suitable for being pulled out from the bottom end of the lower mold.

5. The inclined hole core pulling device of the injection mold according to any one of claims 1 to 4, characterized in that: The ejector mechanism includes an ejector plate and a driving device. The ejector plate is vertically slidably installed in the lower mold. The driving device is installed on the lower mold and the output end is connected to the ejector plate. The second molding assembly is installed on the ejector plate.

Images