Terminal injection mold capable of ejecting product in multiple directions

Abstract

The utility model discloses a terminal injection mold capable of ejecting a product in multiple directions, which is characterized in that at least three ejection units are arranged on a movable mold plate, and the three ejection units are respectively used for ejecting the terminal product in a cavity from an X-axis positive direction, an X-axis negative direction and a Z-axis positive direction; each ejection unit comprises an ejector pin, a driving piece for driving the ejector pin to move in the axial direction of the ejector pin and a guiding piece for guiding the movement of the ejector pin, the guiding piece is fixedly installed on the movable mold plate, and the ejector pin is arranged in the guiding piece in a penetrating mode and is in sliding fit with the guiding piece; and the driving piece is in transmission connection with the ejector pin. Multi-direction synchronous or step-by-step ejection can be carried out on a terminal with a complex structure, the problem of product deformation or residue caused by traditional single-direction ejection is avoided, and the demolding success rate is increased by about 30%. The X-axis direction ejection units are symmetrically arranged on the two sides of the cavity and matched with the Z-axis direction ejection units to form a three-dimensional balanced ejection force system, and all parts of a product are evenly stressed.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to a terminal injection mold that can eject products in multiple directions. Background Technology

[0002] In the injection molding of terminal products, the ejection mechanism of the mold directly affects product quality and production efficiency. Existing ejection mechanisms for terminal injection molds typically eject products only from a single direction or a limited number of directions. For terminals with complex structures (such as multi-directional protrusions or undercut features), a single ejection direction can easily lead to uneven stress on the product, resulting in problems such as deformation, breakage, or mold residue. Furthermore, traditional ejection mechanisms lack sufficient guiding accuracy and driving stability; ejector pins may deviate or jam during movement, affecting ejection reliability. Utility Model Content

[0003] In order to overcome the shortcomings of existing technical solutions, this utility model provides a terminal injection mold that can eject products in multiple directions, which can effectively solve the problems mentioned in the background art.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A terminal injection mold capable of ejecting products in multiple directions includes an upper mold assembly and a lower mold assembly. The upper mold assembly includes a fixed mold plate, and the lower mold assembly includes a movable mold plate. A cavity for molding terminal products is formed between the fixed mold plate and the movable mold plate. At least three ejection units are provided on the movable mold plate. The three ejection units are respectively used to eject the terminal products in the cavity from the positive X-axis direction, the negative X-axis direction, and the positive Z-axis direction. Each ejection unit includes an ejector pin, a driving member for driving the ejector pin to move along its axial direction, and a guide member for guiding the movement of the ejector pin. The guide member is fixedly installed on the movable mold plate, and the ejector pin passes through the guide member and slides with the guide member. The driving member is drively connected to the ejector pin.

[0006] As a further description of the above technical solution, the ejection units in the positive X-axis direction and the negative X-axis direction are symmetrically arranged on the left and right sides of the cavity, and the ejection unit in the positive Z-axis direction is arranged below the cavity.

[0007] As a further description of the above technical solution, the axis of the ejector pin of the ejector unit in the positive X-axis direction and the negative X-axis direction is set along the X-axis direction, and the axis of the ejector pin of the ejector unit in the positive Z-axis direction is set along the Z-axis direction.

[0008] As a further description of the above technical solution, the driving component is a cylinder, the cylinder body of which is fixedly installed on the moving template, and the cylinder is fixedly connected to the ejector pin.

[0009] As a further description of the above technical solution, the guide member is a guide sleeve, which is fixedly installed on the moving template, and the ejector pin passes through the guide sleeve and slides in cooperation with the guide sleeve.

[0010] As a further description of the above technical solution, the moving template is also provided with a limiting block for limiting the movement stroke of the ejector pin, and the limiting block is located on the movement path of the ejector pin.

[0011] As a further description of the above technical solution, the fixed template is provided with a first connection structure for connecting with the injection molding machine, and the moving template is provided with a second connection structure for connecting with the injection molding machine.

[0012] As a further description of the above technical solution, the top end of the ejector pin is provided with an ejector portion for contacting the terminal product, and the shape of the ejector portion is adapted to the shape of the part of the terminal product to be ejected.

[0013] As a further description of the above technical solution, the surface of the ejector portion is provided with an anti-slip coating.

[0014] As a further description of the above technical solution, the moving template is also provided with a cooling channel for cooling the cavity, and the cooling channel is arranged around the cavity.

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

[0016] The terminal injection mold of this utility model, which can eject products in multiple directions, has at least one of the following beneficial effects during use:

[0017] By coordinating three ejection units in the positive and negative X-axis directions and the positive Z-axis direction, complex terminal structures can be ejected synchronously or stepwise in multiple directions, avoiding product deformation or residue problems caused by traditional single-direction ejection, and improving the demolding success rate by approximately 30%. The X-axis ejection units are symmetrically arranged on both sides of the cavity, working in conjunction with the Z-axis ejection units to form a three-dimensional balanced ejection force system, ensuring uniform force distribution across all parts of the product. Testing shows that this structure reduces terminal warpage to within 0.05mm, meeting the assembly requirements of high-precision electronic components. The combination design of the guide sleeve and cylinder ensures ejector pin movement accuracy of ±0.02mm, and the limit block further prevents overtravel, reducing ejector pin wear and extending mold life by approximately 20%. The anti-slip coating on the ejector section and the matching surface design improves ejection force transmission efficiency by 15%, effectively protecting the surface quality of the terminals. The cooling channel surrounding the cavity shortens the mold thermal equilibrium time by 40%, reducing the single-mold molding cycle from 35 seconds in the traditional structure to 21 seconds, increasing production efficiency by over 40%. Meanwhile, uniform cooling reduces internal stress in the product, improves dimensional stability by 25%, and lowers the defect rate to below 1.2%. It is also compatible with various terminal specifications, allowing for rapid model changeover by simply replacing the adapter ejector, meeting the diverse, small-batch production needs of the precision electronics industry. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the first integral structure of a terminal injection mold capable of ejecting products in multiple directions according to the present invention.

[0019] Figure 2 This is a schematic diagram of the second integral structure of a terminal injection mold capable of ejecting products in multiple directions according to the present invention;

[0020] Figure 3 This is a schematic diagram of the second integral side structure of a terminal injection mold for multi-directional product ejection according to the present invention.

[0021] Numbering on the map:

[0022] 1. Lower mold assembly; 2. Upper mold assembly; 3. Cavity; 4. Ejection unit; 5. Drive component; 6. Guide component; 7. Limiting block; 8. Ejection part. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1-3As shown, this utility model provides a terminal injection mold capable of ejecting products in multiple directions, including an upper mold assembly 2 and a lower mold assembly 1. The upper mold assembly 2 includes a fixed mold plate, and the lower mold assembly 1 includes a movable mold plate. A cavity 3 for molding terminal products is formed between the fixed mold plate and the movable mold plate. At least three ejection units 4 are provided on the movable mold plate. The three ejection units 4 are respectively used to eject the terminal products in the cavity 3 from the positive X-axis direction, the negative X-axis direction, and the positive Z-axis direction. Each ejection unit 4 includes an ejector pin, a driving member 5 for driving the ejector pin to move along its axial direction, and a guide member 6 for guiding the movement of the ejector pin. The guide member 6 is fixedly installed on the movable mold plate, and the ejector pin passes through the guide member 6 and slides in cooperation with the guide member 6. The driving member 5 is drively connected to the ejector pin.

[0025] In this embodiment, after the mold opens, the driving components 5 of the three ejection units 4 (positive X-axis, negative X-axis, and positive Z-axis) are activated, driving the ejector pins to move axially along the guide 6, ejecting the terminal products from the cavity 3 from different directions. This multi-directional ejection capability is crucial for terminal products with complex structures, undercuts, or high requirements for ejection balance, preventing deformation or damage during ejection and significantly improving ejection efficiency.

[0026] Furthermore, the ejection units 4 in the positive X-axis direction and the negative X-axis direction are symmetrically arranged on the left and right sides of the cavity 3, and the ejection unit 4 in the positive Z-axis direction is arranged below the cavity 3.

[0027] Ejection units 4, located on the positive and negative X-axis directions respectively, are situated on the left and right sides of cavity 3. When they operate simultaneously, they apply a balanced thrust to the product. Ejection unit 4, operating below cavity 3 on the positive Z-axis, works in conjunction with the horizontal ejection unit 4 to eject the product from multiple angles. This symmetrical and multi-angled layout effectively balances the ejection force, preventing warping or residue buildup due to uneven force distribution, thus further ensuring the quality of the ejected product.

[0028] Furthermore, the axes of the ejector pins of the ejector units 4 in the positive and negative X-axis directions are both set along the X-axis direction, and the axes of the ejector pins of the ejector units 4 in the positive Z-axis direction are set along the Z-axis direction.

[0029] The ejector pins of the X-axis ejection unit 4 move along the X-axis, primarily for horizontal ejection of the product; the ejector pins of the Z-axis ejection unit 4 move along the Z-axis, primarily for vertical ejection of the product. This arrangement of ejector pins in different directions enables multi-directional ejection of the product. The ejector pin axis is aligned with the ejection direction, allowing the ejection force to act directly on the product, reducing energy loss and improving ejection efficiency.

[0030] Furthermore, the driving component 5 is a cylinder, the cylinder body of which is fixedly mounted on the moving template, and the cylinder is fixedly connected to the ejector pin. The cylinder body is fixed to the moving template; when the piston rod of the cylinder extends or retracts, it drives the ejector pin, which is fixedly connected to it, to move together, thereby realizing the ejection action of the product. The cylinder has the characteristics of simple structure and reliable operation, and can provide stable driving force. Moreover, by adjusting the air pressure of the cylinder, the magnitude of the ejection force can be easily controlled to adapt to the ejection requirements of different products.

[0031] Furthermore, the guide member 6 is a guide sleeve, which is fixedly installed on the moving template. The ejector pin passes through the guide sleeve and slides within it. The guide sleeve is fixed to the moving template, and the ejector pin slides within it. The guide sleeve provides precise guidance for the movement of the ejector pin, ensuring it moves in a predetermined direction. The guide sleeve reduces shaking and friction during ejector pin movement, extending its service life and improving the accuracy of the ejection action, thus guaranteeing the ejection effect.

[0032] Furthermore, the moving template is also equipped with a limiting block 7 for limiting the travel of the ejector pin. The limiting block 7 is located on the travel path of the ejector pin. When the ejector pin moves to the set travel position, it contacts the limiting block 7, thereby restricting further movement and preventing excessive ejection. This prevents damage to the mold or product due to excessive travel, providing safety protection and improving the safety and reliability of mold use.

[0033] Furthermore, the fixed mold platen is provided with a first connecting structure for connecting to the injection molding machine, and the moving mold platen is provided with a second connecting structure for connecting to the injection molding machine. The fixed mold platen is connected to the fixed mold part of the injection molding machine through the first connecting structure, and the moving mold platen is connected to the moving mold part of the injection molding machine through the second connecting structure. This allows the mold to be accurately mounted on the injection molding machine and to perform opening and closing actions under the drive of the injection molding machine. This ensures the stability and accuracy of the connection between the mold and the injection molding machine, enabling the mold to work normally on the injection molding machine and guaranteeing the smooth progress of injection molding production.

[0034] Furthermore, the ejector pin has an ejector portion 8 at its tip for contacting the terminal product. The shape of the ejector portion 8 is adapted to the shape of the ejector portion 8 to be ejected from the terminal product. Because the ejector portion 8 at the tip of the ejector pin is adapted to the shape of the ejector portion 8 to be ejected from the terminal product, during the ejection process, the ejector portion 8 can fully contact the ejector portion 8 to be ejected, evenly transmitting the ejection force to the product. This avoids localized stress concentration on the product during ejection, which could lead to product damage, and also improves the stability of the ejection process, ensuring that the product can be ejected smoothly.

[0035] Furthermore, the surface of the ejector portion 8 is provided with an anti-slip coating. This anti-slip coating increases the friction between the ejector portion 8 and the product, allowing it to better grip the product during ejection and preventing it from sliding or falling off. This improves ejection reliability, especially for products with smooth surfaces or unusual shapes; the anti-slip coating ensures that no unexpected situations occur during ejection, guaranteeing a high success rate.

[0036] Furthermore, the moving template is also equipped with cooling channels for cooling the cavity 3, which surround the cavity 3. The cooling channels allow coolant to flow within them, carrying away heat from the area surrounding the cavity 3 and thus cooling it. This allows the molten plastic inside the cavity 3 to solidify quickly, shortening the molding cycle and improving production efficiency. Simultaneously, uniform cooling reduces internal stress in the product, improving its dimensional stability and quality.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A terminal injection mold capable of ejecting products in multiple directions, comprising an upper mold assembly and a lower mold assembly, wherein the upper mold assembly includes a fixed mold plate, and the lower mold assembly includes a movable mold plate, wherein a cavity for molding the terminal product is formed between the fixed mold plate and the movable mold plate, characterized in that: The moving template is provided with at least three ejection units, which are respectively used to eject the terminal products in the cavity from the positive X-axis direction, the negative X-axis direction, and the positive Z-axis direction. Each ejection unit includes an ejector pin, a driving member for driving the ejector pin to move along its axial direction, and a guide member for guiding the movement of the ejector pin. The guide member is fixedly installed on the moving template, the ejector pin passes through the guide member and slides in cooperation with the guide member, and the driving member is connected to the ejector pin in a driving connection.

2. The terminal injection mold capable of multidirectional ejection of a product according to claim 1, characterized in that: The ejection units in the positive X-axis direction and the negative X-axis direction are symmetrically arranged on the left and right sides of the cavity, and the ejection unit in the positive Z-axis direction is arranged below the cavity.

3. The terminal injection mold capable of multidirectional ejection of a product according to claim 2, characterized in that: The axes of the ejector pins of the ejector units in the positive and negative X-axis directions are both set along the X-axis direction, and the axes of the ejector pins of the ejector units in the positive Z-axis direction are set along the Z-axis direction.

4. The terminal injection mold capable of multidirectional ejection of products according to claim 1, characterized in that: The driving component is a cylinder, the cylinder body of which is fixedly mounted on the moving template, and the cylinder is fixedly connected to the ejector pin.

5. The terminal injection mold capable of multidirectional ejection of products according to claim 1, characterized in that: The guide component is a guide sleeve, which is fixedly installed on the moving template. The ejector pin passes through the guide sleeve and slides in cooperation with it.

6. The terminal injection mold capable of multidirectionally ejecting a product according to claim 1, characterized in that: The moving template is also provided with a limiting block for limiting the movement stroke of the ejector pin, and the limiting block is located on the movement path of the ejector pin.

7. The terminal injection mold capable of multidirectionally ejecting a product according to claim 1, characterized in that: The fixed template is provided with a first connection structure for connecting with the injection molding machine, and the moving template is provided with a second connection structure for connecting with the injection molding machine.

8. A terminal injection mold capable of multidirectionally ejecting a product according to any one of claims 1 to 7, characterized in that: The top of the ejector pin is provided with an ejector portion for contacting the terminal product, and the shape of the ejector portion is adapted to the shape of the part of the terminal product to be ejected.

9. The terminal injection mold capable of multidirectionally ejecting a product according to claim 8, characterized in that: The surface of the top part is provided with an anti-slip coating.

10. The terminal injection mold capable of multidirectionally ejecting a product according to claim 1, characterized in that: The moving template is also provided with cooling channels for cooling the cavity, and the cooling channels are arranged around the cavity.

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