Side slope ejection mechanism of injection mold

Abstract

The utility model discloses a kind of injection mould side edge inclined top demolding mechanism, comprising: slider mechanism and inclined top mechanism, slider mechanism includes slider, slider can be slid along the direction perpendicular to the direction of injection mould opening and closing to exit first reverse buckle position on product;Inclined top mechanism includes inclined top, inclined top slider, inclined top seat and inclined top limit block, slider is provided with first inclined hole, inclined top is slidably installed in first inclined hole and is connected with inclined top slider, one end of inclined top seat is equipped with first sliding slot, inclined top slider is slidably installed in first sliding slot, inclined top can be driven by slider and be slid along the direction of first sliding slot to exit second reverse buckle position on product;Inclined top limit block is fixed on the front mould of injection mould, the other end of inclined top seat is abutted on inclined top limit block.The utility model can effectively solve the demolding problem of multidirectional reverse buckle product in limited mould space, and also can simplify mould structure, reduce mould manufacturing cost.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to a side-mounted inclined ejection mechanism for injection molds. Background Technology

[0002] In the field of injection molding, the demolding process is a crucial step. As the design of plastic products becomes increasingly complex, multiple undercut structures in different directions are often present on the products, which places higher demands on the demolding mechanism.

[0003] Traditional injection mold demolding methods typically employ separate sliders for undercuts in different directions. However, in actual production, mold space is often limited. When a product has undercuts in multiple directions, the limited internal space of the mold makes it impossible to install independent sliders for each undercut. This leads to difficulties in smoothly removing the product from the mold during demolding; or, if sliders are installed, the mold structure becomes extremely complex, increasing manufacturing costs, reducing stability and reliability, and consequently lowering production efficiency and increasing maintenance difficulty. Therefore, it is necessary to improve existing technologies to overcome their shortcomings. Utility Model Content

[0004] This invention provides a side-mounted inclined ejection mechanism for injection molds, which can effectively solve the demolding problem of multi-directional undercut products within a limited mold space, while also simplifying the mold structure and reducing mold manufacturing costs.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a side-mounted inclined ejection mechanism for injection molds, comprising:

[0006] A slider mechanism, comprising a slider capable of sliding along a direction perpendicular to the mold opening and closing direction to disengage from a first undercut position on the product;

[0007] The inclined ejector mechanism includes an inclined ejector, an inclined ejector slider, an inclined ejector seat, and an inclined ejector limiting block. The slider has a first inclined hole, and the inclined ejector is slidably installed in the first inclined hole and connected to the inclined ejector slider. One end of the inclined ejector seat has a first sliding groove, and the inclined ejector slider is slidably installed in the first sliding groove. The inclined ejector can be driven by the slider to slide along the direction of the first sliding groove to exit the second undercut position on the product. The inclined ejector limiting block is fixed on the front mold of the injection mold, and the other end of the inclined ejector seat abuts against the inclined ejector limiting block.

[0008] As a further improvement of this utility model, the slider mechanism further includes a slider base and an inclined guide post. The slider base is fixedly connected to the slider, and a second inclined hole is provided on the slider base. The inclined guide post is fixed on the front mold of the injection mold and inserted into the second inclined hole.

[0009] As a further improvement of this utility model, the slider base is provided with a second groove along the sliding direction of the slider, one end of the inclined top seat is slidably installed in the second groove, and one end of the inclined top seat is also provided with a boss, the slider is provided with a stop surface opposite to the boss, the second groove is provided with a stop step opposite to the boss, and the boss is movably disposed between the stop surface and the stop step.

[0010] As a further improvement of this utility model, a ball screw is installed on the slider base, and two positioning grooves are provided on the inclined top seat. The ball screw abuts in one of the positioning grooves, and when the slider base slides relative to the inclined top seat, the ball screw can slide into the other positioning groove.

[0011] As a further improvement of this utility model, the other end of the inclined top seat is provided with a first inclined surface, and the bottom of the inclined top limiting block is provided with a second inclined surface for sliding contact with the first inclined surface.

[0012] As a further improvement of this utility model, the inclined top slider has a C-shaped slot on one side facing the inclined top, and a cylindrical connector is provided at one end of the inclined top, the connector being movably disposed in the C-shaped slot.

[0013] As a further improvement of this utility model, the extension direction of the first groove is perpendicular to both the opening and closing direction of the injection mold and the sliding direction of the slider.

[0014] As a further improvement of this utility model, the slider mechanism further includes a stop block for stopping the slider shovel base, the stop block being disposed on the side of the slider shovel base opposite to the slider.

[0015] As a further improvement of this utility model, the inclined top is provided with a plurality of the same number of second inverted fasteners on the product, and each number corresponds to the number of the inverted fasteners on the product.

[0016] The beneficial effects of this utility model are as follows: This utility model provides a side-mounted inclined ejector demolding mechanism for injection molds. By sliding the inclined ejector slider of the inclined ejector mechanism into the first inclined hole of the slider, and simultaneously connecting the inclined ejector to the inclined ejector seat through the inclined ejector slider, the linkage between the slider and the inclined ejector is cleverly realized. When the slider slides out of the first undercut position of the product along the direction perpendicular to the mold opening and closing direction, it can drive the inclined ejector to slide along a specific direction, thereby simultaneously exiting the second undercut position on the product. This linkage design allows the injection mold to handle multiple undercuts in different directions simultaneously during the demolding process, greatly improving demolding efficiency. Moreover, the entire structure is compact and orderly, and the various components cooperate closely with each other. Compared with the traditional method of setting sliders separately for undercuts in multiple directions, it also greatly saves the internal space of the mold, effectively solves the problem of insufficient mold space, and reduces the manufacturing cost of the mold. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a perspective view of the side-mounted inclined ejector mechanism of the injection mold of this utility model;

[0019] Figure 2 This is an exploded view of the side-mounted inclined ejector mechanism of the injection mold of this utility model;

[0020] Figure 3 This is a longitudinal sectional view of the side inclined ejector mechanism of the injection mold of this utility model;

[0021] Figure 4 This is a cross-sectional view of the side inclined ejector mechanism of the injection mold of this utility model;

[0022] Figure 5 This is a perspective view of the inclined jacking mechanism in this utility model;

[0023] Figure 6 This is a diagram showing the demolding state of the side-mounted ejector demolding mechanism of the injection mold of this utility model when the ejector retracts from the second undercut position of the product;

[0024] Figure 7 This diagram shows the demolding state of the side-mounted ejector mechanism of the injection mold when it is completely withdrawn from the product.

[0025] Referring to the accompanying drawings, the following explanations are provided:

[0026] 1. Slider; 101. First oblique hole; 102. Stop surface; 2. Product; 201. First undercut position; 202. Second undercut position; 3. Angled top; 301. Connector; 4. Angled top slider; 401. C-type slot; 5. Angled top seat; 501. First slide groove; 502. Boss; 503. Positioning groove; 504. First oblique surface; 6. Angled top limiting block; 601. Second oblique surface; 7. Slider base; 701. Second oblique hole; 702. Second slide groove; 703. Stop step; 8. Angled guide post; 9. Ball screw; 10. Stop block. Detailed Implementation

[0027] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0028] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0030] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The illustrations only show the components related to this application and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0031] Additionally, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that practice can be carried out without these specific details.

[0032] The technical solutions provided by the various embodiments of this application are described below with reference to the accompanying drawings.

[0033] This utility model provides a side-mounted inclined ejector mechanism for injection molds, used to achieve smooth demolding of multi-directional undercut products 2. The product 2 shown in the accompanying drawings has a first undercut position 201 and a second undercut position 202 located on its side and distributed at a specific angle (specifically 90°) to the first undercut position 201.

[0034] For ease of understanding, Figure 1 For reference, the end of each component in the side-mounted ejector mechanism of the injection mold in this application that faces the product 2 is defined as the front end, and the other end that faces away from the product 2 is defined as the rear end.

[0035] See Figures 1 to 7 The present invention relates to a side-mounted ejector demolding mechanism for injection molds, comprising a slider mechanism and an ejector mechanism. The slider mechanism includes a slider 1, which is slidably mounted on the rear mold of the injection mold. The front end of the slider 1 participates in the injection molding of the product 2, forming the first undercut position 201 of the product 2. The slider 1 can slide along a direction perpendicular to the mold opening and closing direction to exit the first undercut position 201 on the product 2.

[0036] The inclined ejector mechanism includes an inclined ejector 3, an inclined ejector slider 4, an inclined ejector seat 5, and an inclined ejector limiting block 6. The slider 1 is provided with a first inclined hole 101 that matches the inclined ejector 3. The front end of the inclined ejector 3 is slidably installed in the first inclined hole 101. The front end of the inclined ejector 3 also participates in the injection molding of the product 2, and is used to form the second undercut position 202 of the product 2. The rear end of the inclined ejector 3 is connected to the inclined ejector slider 4. The front end of the inclined ejector seat 5 is provided with a first sliding groove 501. The inclined ejector slider 4 is slidably installed in the first sliding groove 501. The inclined ejector 3 can be driven by the slider 1 to slide along the direction of the first sliding groove 501 to exit the second undercut position 202 on the product 2. The inclined ejector limiting block 6 is fixed on the front mold of the injection mold, and the rear end of the inclined ejector seat 5 abuts against the inclined ejector limiting block 6.

[0037] After product 2 cools and solidifies in the mold-closed state, the front and rear molds of the injection mold open relative to each other, and slider 1 slides backward. Because the inclined ejector seat 5 is blocked by the inclined ejector limiting block 6, the inclined ejector 3 does not slide backward with slider 1 for a short distance at the beginning. Instead, under the action of the first inclined hole 101 of slider 1, the inclined ejector 3 and the inclined ejector slider 4 slide along the first slide groove 501; until the inclined ejector limiting block 6 completely leaves the inclined ejector seat 5 along with the front mold (as shown in the image). Figure 6As shown), at this moment, the inclined ejector 3 just exits the second inverted latch 202 on product 2. Then, the slider 1 drives the inclined ejector 3, the inclined ejector slider 4, and the inclined ejector seat 5 to continue moving backward, completely exiting product 2 (as shown). Figure 7 (As shown).

[0038] The side-mounted ejector demolding mechanism of this utility model cleverly achieves linkage between the slider 1 and the ejector 3 by sliding the slider 3 of the ejector mechanism into the first inclined hole 101 of the slider 1. At the same time, the ejector 3 is slidably connected to the ejector seat 5 through the slider 4. When the slider 1 slides out of the first undercut position 201 of the product 2 along the direction perpendicular to the mold opening and closing direction, it can drive the ejector 3 to slide along a specific direction, thereby simultaneously exiting the second undercut position 202 on the product 2. This linkage design allows the injection mold to handle multiple undercuts in different directions at the same time during the demolding process, which greatly improves the demolding efficiency. Moreover, the whole structure is compact and orderly, and the various parts cooperate closely with each other. Compared with the traditional method of setting sliders separately for undercuts in multiple directions, it also greatly saves the internal space of the mold, effectively solves the problem of insufficient mold space, and reduces the manufacturing cost of the mold.

[0039] See Figure 1 and Figure 2 The slider mechanism also includes a slider base 7, two inclined guide pillars 8, and two pressure blocks. The slider base 7 is fixedly connected to the rear end of the slider 1. The two pressure blocks are located on the left and right sides of the slider base 7 to restrict the slider base 7 to move only in the forward and backward direction. Two second inclined holes 701 are arranged side-by-side on the slider base 7. The two inclined guide pillars 8 are fixed to the front mold of the injection mold and inserted into the second inclined holes 701. During mold opening, when the front mold of the injection mold opens relative to the rear mold, the front mold drives the slider base 7 and the slider 1 to slide backward via the two inclined guide pillars 8 for demolding, thus eliminating the need for an additional power drive device.

[0040] See Figure 2 and Figure 3 The slider base 7 is provided with a second slide groove 702 that matches the inclined ejector 5 along the sliding direction of the slider 1. The front end of the inclined ejector 5 is slidably installed in the second slide groove 702. The second slide groove 702 can accurately position and guide the sliding of the inclined ejector 5, ensuring the stability and accuracy of the inclined ejector 3 during the movement process, thereby ensuring the smooth demolding process.

[0041] like Figure 4 and Figure 5As shown, the left and right sides of the front end of the inclined top seat 5 are also provided with bosses 502. The slider 1 is provided with a stop surface 102 opposite to the bosses 502. The second slide groove 702 is provided with a stop step 703 opposite to the bosses 502. The bosses 502 are movably disposed between the stop surface 102 and the stop step 703. The stop surface 102 and the stop step 703 serve as the stroke endpoints of the inclined top seat 5 relative to the slider 1.

[0042] In the mold-closed state, the stop step 703 of the slider base 7 abuts against the boss 502 of the inclined ejector seat 5, providing continuous pressure to the inclined ejector seat 5 and ensuring the stability of the inclined ejector mechanism during injection molding. During the demolding process, initially, the inclined ejector seat 5 remains stationary for a distance blocked by the inclined ejector limit block 6. The slider 1 and slider base 7 move backward under the drive of the inclined guide post 8 until the stop surface 102 of the slider 1 abuts against the boss 502 of the inclined ejector seat 5. At this time, the inclined ejector 3 has also exited the second undercut position 202 on the product 2. Afterward, the slider 1 drives the inclined ejector 3 to continue moving backward through the inclined ejector seat 5, and completely exits from the product 2.

[0043] See Figure 3 The top of the rear end of the inclined ejector seat 5 is provided with a first inclined surface 504, and the bottom of the inclined ejector limiting block 6 is provided with a second inclined surface 601 with the same slope as the first inclined surface 504. During the mold closing process, the second inclined surface 601 of the inclined ejector limiting block 6 slides in contact with the first inclined surface 504 of the inclined ejector seat 5 to push the inclined ejector seat 5 into place.

[0044] It is worth mentioning that a ball screw 9 is also installed on the slider base 7, and two positioning grooves 503 are provided on the inclined ejector seat 5. The ball screw 9 abuts in one of the positioning grooves 503, and when the slider base 7 slides relative to the inclined ejector seat 5, the ball screw 9 can slide into the other positioning groove 503. Specifically, in the mold closed state, the ball screw 9 abuts in the forward positioning groove 503; in the mold open state, the ball screw 9 is located in the rear positioning groove 503. By using the cooperation between the ball screw 9 and the positioning groove 503 on the inclined ejector seat 5, the slider 1 and the inclined ejector seat 5 can be accurately positioned during relative sliding, improving the reliability of the demolding mechanism.

[0045] See Figure 5 In this embodiment, the extension direction of the first slide groove 501 is perpendicular to both the mold opening and closing direction of the injection mold and the sliding direction of the slider 1. A C-shaped slot 401 is provided on the side of the inclined ejector slider 4 facing the inclined ejector 3. A cylindrical connector 301 is provided at one end of the inclined ejector 3. The connector 301 is movably disposed within the C-shaped slot 401. This connection method can effectively transmit motion and force while ensuring the relative movement flexibility between the inclined ejector 3 and the inclined ejector slider 4, preventing jamming during the movement of the inclined ejector 3.

[0046] In addition, the slider mechanism also includes a stop block 10 for stopping the slider base 7. The stop block 10 is fixed on the rear mold of the injection mold and is located on the side of the slider base 7 opposite to the slider 1. It can effectively stop the slider base 7 and prevent the slider 1 from exceeding the predetermined position due to inertia or other factors during the movement, thereby protecting the mold and the product and improving the safety and reliability of the entire demolding mechanism.

[0047] In this utility model, the inclined top 3 is provided with multiple second undercut positions 202 of the same number as the product 2 and corresponding one-to-one. In this embodiment, there are two. It can perform demolding operation on multiple second undercut positions 202 on the product 2 at the same time, which further improves demolding efficiency and ensures the integrity of product demolding. It is suitable for the demolding needs of complex products with multiple identical or different types of second undercut positions 202.

[0048] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A side-mounted inclined ejector mechanism for an injection mold, characterized in that, include: The slider mechanism includes a slider (1) which is capable of sliding along a direction perpendicular to the mold opening and closing direction of the injection mold to exit the first undercut position (201) on the product (2). The inclined ejector mechanism includes an inclined ejector (3), an inclined ejector slider (4), an inclined ejector seat (5), and an inclined ejector limiting block (6). The slider (1) is provided with a first inclined hole (101). The inclined ejector (3) is slidably installed in the first inclined hole (101) and connected to the inclined ejector slider (4). One end of the inclined ejector seat (5) is provided with a first groove (501). The inclined ejector slider (4) is slidably installed in the first groove (501). The inclined ejector (3) can be driven by the slider (1) to slide along the direction of the first groove (501) to exit the second undercut position (202) on the product (2). The inclined ejector limiting block (6) is fixed on the front mold of the injection mold. The other end of the inclined ejector seat (5) abuts against the inclined ejector limiting block (6).

2. The injection mold side inclined ejection mechanism according to claim 1, characterized in that: The slider mechanism further includes a slider base (7) and an inclined guide post (8). The slider base (7) is fixedly connected to the slider (1), and a second inclined hole (701) is provided on the slider base (7). The inclined guide post (8) is fixed on the front mold of the injection mold and inserted into the second inclined hole (701).

3. The injection mold side inclined ejection mechanism according to claim 2, characterized in that: The slider base (7) is provided with a second groove (702) along the sliding direction of the slider (1). One end of the inclined top seat (5) is slidably installed in the second groove (702), and one end of the inclined top seat (5) is also provided with a boss (502). The slider (1) is provided with a stop surface (102) opposite to the boss (502). The second groove (702) is provided with a stop step (703) opposite to the boss (502). The boss (502) is movably disposed between the stop surface (102) and the stop step (703).

4. The injection mold side inclined ejection mechanism according to claim 2, characterized in that: A ball screw (9) is installed on the slider base (7), and two positioning grooves (503) are provided on the inclined top seat (5). The ball screw (9) abuts in one of the positioning grooves (503), and when the slider base (7) slides relative to the inclined top seat (5), the ball screw (9) can slide into the other positioning groove (503).

5. The injection mold side inclined ejection mechanism according to claim 1, characterized in that: The other end of the inclined top seat (5) is provided with a first inclined surface (504), and the bottom of the inclined top limiting block (6) is provided with a second inclined surface (601) for sliding contact with the first inclined surface (504).

6. The injection mold side inclined ejection mechanism according to claim 1, characterized in that: The inclined top slider (4) has a C-shaped slot (401) on one side facing the inclined top (3), and a cylindrical connector (301) is provided at one end of the inclined top (3). The connector (301) is movably disposed in the C-shaped slot (401).

7. The injection mold side inclined ejection mechanism according to claim 1, characterized in that: The extension direction of the first groove (501) is perpendicular to both the opening and closing direction of the injection mold and the sliding direction of the slider (1).

8. The injection mold side inclined ejection mechanism according to claim 2, characterized in that: The slider mechanism further includes a stop (10) for stopping the slider base (7), the stop (10) being disposed on the side of the slider base (7) opposite to the slider (1).

9. The injection mold side inclined ejection mechanism according to claim 2, characterized in that: The inclined top (3) is provided with a number of the same number of second inverted fasteners (202) on the product (2) and they correspond one-to-one.

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