Automobile skirt injection molding tool with anti-deformation support

Abstract

This utility model provides an injection molding fixture for automotive side skirts with anti-deformation support, belonging to the field of injection molding fixture technology. It includes an upper injection mold, an injection template, and a mounting plate. The mounting plate is equipped with multiple sets of guide pillars, on which both the upper injection mold and the injection template are located. The injection template has a groove for accommodating the workpiece and an injection groove. A heating element is installed on the injection template, and a condenser is installed within the groove. The condenser is located on both sides of the injection groove. A temperature controller is electrically connected to one side of the heating element. An injection pressure block corresponding to the injection groove is located at the bottom of the upper injection mold, and a sealing ring for contact with the injection template is also provided at the bottom of the upper injection mold. By incorporating a heating element, a condenser, and an anti-deformation structure on the injection template, this device can control the temperature during the injection process and prevent deformation of the automotive side skirt, thus improving the quality and stability of the injection-molded products.

Description

Technical Field

[0001] This utility model belongs to the field of injection molding tooling technology, and more specifically, it relates to an injection molding tooling for automotive skirts with anti-deformation support. Background Technology

[0002] In the automotive manufacturing industry, in order to ensure the quality and production efficiency of car side skirts, production personnel often use injection molding fixtures to form car side skirts.

[0003] However, the traditional equipment lacks temperature control, which makes it difficult to control the fluidity of the plastic melt during the injection molding process. This results in problems such as uneven surface and uneven internal structure in the injection-molded car skirts.

[0004] Furthermore, traditional devices often employ a simple ejection method and lack the function of adjusting the ejection mold force. When ejecting car side skirts, uneven ejection force or excessive ejection speed can cause the car side skirts to be subjected to excessive impact force. Under such impact force, the car side skirts are prone to local cracking or deformation, resulting in product damage. This not only affects product quality and reduces production efficiency, but also increases production time and costs due to frequent mold replacements or product repairs, thereby affecting the company's production progress and economic benefits. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides an automotive skirt injection molding fixture with anti-deformation support, thereby solving the technical problems that traditional devices in the prior art lack temperature control functions and the ability to adjust the ejection mold force.

[0006] The purpose and function of this utility model's automotive skirt injection molding fixture with anti-deformation support are achieved by the following specific technical means:

[0007] An injection molding fixture for automotive side skirts with anti-deformation support includes an upper injection mold, an injection template, and a mounting plate. The mounting plate has multiple sets of guide pillars. Both the upper injection mold and the injection template are located on these guide pillars. The injection template has a slot for accommodating objects and an injection groove. A heating tube is provided on the injection template, and a condenser tube is placed inside the slot. The condenser tube is located on both sides of the injection groove. A temperature controller is electrically connected to one side of the heating tube. An injection pressure block corresponding to the injection groove is provided at the bottom of the upper injection mold. A sealing ring for fitting against the injection template is provided at the bottom of the upper injection mold.

[0008] According to a preferred embodiment, a support platform is provided on one side of the mounting plate, a placement plate is provided on the support platform, and two sets of cylinders are provided on the placement plate. One end of each set of cylinders passes through the placement plate and is connected to the upper injection mold.

[0009] According to a preferred embodiment, an injection feeding machine is provided on the upper injection mold, the discharge port of the injection feeding machine is inserted through the injection pressure block, two sets of connectors for connecting external instruments are provided on one side of the condenser tube, and fixing frames are provided on both sides of the injection groove, with the outer tube body of the condenser tube sleeved on the fixing frames.

[0010] According to a preferred embodiment, the number of guide post groups is four, and multiple slots are provided on the mounting plate. One end of each of the four guide posts is locked in the slot, and a retaining plate is provided on each of the four guide posts. Limiting holes are provided on both the four guide posts and the retaining plate.

[0011] According to a preferred embodiment, the two sets of guide posts are connected to each other by a first limiting pin passing through the limiting hole, and the mounting plate is provided with two sets of second limiting pins, which pass through the two sets of guide posts respectively and are mounted on the mounting plate.

[0012] According to a preferred embodiment, each of the four sets of slots is equipped with an electric push rod, a damper is provided between the four sets of electric push rods, a soft pad is provided on the plate, and an ejection box for ejecting the injection mold is provided on the soft pad. One side of each of the four sets of electric push rods passes through the soft pad and is inserted into the ejection box, and one end of the damper is connected to the plate.

[0013] According to a preferred embodiment, multiple sets of guide grooves are provided on both sides of the ejector box, and ejector plates are slidably arranged on the multiple sets of guide grooves. One end of the ejector plate is connected to four sets of electric push rods, and the other end passes through the injection groove. Multiple sets of heat dissipation holes are provided on the ejector box.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This device, by incorporating heating elements, condenser elements, and anti-deformation structures on the injection mold, enables temperature control during the injection molding process and prevents deformation of automotive side skirts, thereby improving the quality and stability of the injection-molded products. The device can regulate the temperature of the heating elements via a thermostat to control the heating state of the plastic within the injection groove, providing a suitable temperature environment for the molten plastic and ensuring its fluidity and molding effect. Simultaneously, the condenser elements rapidly cool the plastic parts, working in conjunction with the heating elements to achieve temperature regulation, thus enhancing the device's capabilities in temperature control and preventing product deformation.

[0016] 2. When using this device, two sets of cylinders drive the upper injection mold to move on the guide pillars, realizing the mold opening and closing action, making the device operation more convenient and improving its ease of use. Then, through the coordinated action of components such as the electric push rod, damper, and ejector box, the device can smoothly eject the molded car skirt after injection molding. The electric push rod can control the ejection force to prevent excessive ejection speed from damaging the plastic part. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the assembled structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0019] Figure 3 This is a front view of the present invention;

[0020] Figure 4 This is a schematic diagram of the internal structure of the injection molding template of this utility model.

[0021] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0022] 11. Injection mold upper mold; 12. Injection mold plate; 13. Mounting plate; 14. Guide post; 15. Heating tube; 16. Condenser tube; 17. Sealing ring; 18. Support platform; 19. Placement plate; 21. Injection feeder; 22. Fixing frame; 23. Clamping plate; 24. First limit clamping post; 31. Second limit clamping post; 25. Electric push rod; 26. Damper; 27. Soft pad; 28. Ejector box; 29. ​​Ejector column plate. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the technical solution of this utility model, but should not be used to limit the scope of protection of this utility model.

[0024] Example:

[0025] like Figures 1 to 2As shown, this utility model provides an injection molding fixture for automotive skirts with anti-deformation support, including an upper injection mold 11, an injection template 12, and an installation plate 13. The installation plate 13 is provided with multiple sets of guide pillars 14. The upper injection mold 11 and the injection template 12 are both located on the multiple sets of guide pillars 14. The injection template 12 has a tube groove for accommodating objects and an injection groove. The injection template 12 is provided with a heating tube 15, and a condenser tube 16 is provided in the tube groove. The condenser tube 16 is located on both sides of the injection groove. A temperature controller is electrically connected to one side of the heating tube 15. The bottom of the upper injection mold 11 is provided with an injection pressure block corresponding to the injection groove. The bottom of the upper injection mold 11 is provided with a sealing ring 17 for fitting with the injection template 12.

[0026] Specifically, the upper injection mold 11, as an important component of the tooling, plays a role in applying pressure and forming during the injection molding process. The injection pressure block corresponds to the injection groove. When the upper injection mold 11 is pressed down, the injection pressure block and the injection groove cooperate to extrude the plastic material into the shape of a car side skirt. The sealing ring 17 is located at the bottom of the upper injection mold 11. When the upper injection mold 11 is in contact with the injection template 12, it plays a sealing role to prevent the plastic melt from overflowing and ensure the quality of the injection molded product.

[0027] Injection mold 12 is the basic mold for forming automotive side skirts. The injection groove provides the forming space for the side skirts. Heating tubes 15 are installed on injection mold 12, and the heating temperature is controlled by a thermostat to maintain a suitable temperature for the plastic material in the injection groove, ensuring its fluidity and facilitating uniform filling of the injection groove, thus improving molding quality. The thermostat can be a TR-2006 thermostat. The tube groove is used to accommodate condenser tubes 16, which are located on both sides of the injection groove. After injection molding, coolant is connected to the condenser tubes 16 through connectors to external instruments to cool the product in the injection groove, accelerating product setting and improving production efficiency. (The thermostat, cylinder, electric push rod 25, and any external instruments that need to be connected are all connected to and controlled by an external controller.)

[0028] A support platform 18 is provided on one side of the mounting plate 13. A placement plate 19 is provided on the support platform 18. Two sets of cylinders are provided on the placement plate 19. One end of each set of cylinders passes through the placement plate 19 and is connected to the upper injection mold 11.

[0029] Specifically, the support platform 18 and the placement plate 19 provide a stable mounting base for the cylinder. The cylinder serves as a power source, and its piston rod passes through the placement plate 19 and connects to the upper injection mold 11. Through the extension and retraction of the cylinder, the upper injection mold 11 is driven to move up and down along the guide column 14, thereby realizing the opening and closing action of the upper injection mold 11 and the injection template 12. The operation is convenient and the position of the upper injection mold 11 can be controlled to ensure the smooth progress of the injection process.

[0030] An injection feeder 21 is provided on the upper injection mold 11. The discharge port of the injection feeder 21 passes through the injection pressure block. Two sets of connectors for connecting external instruments are provided on one side of the condenser tube 16. Fixing frames 22 are provided on both sides of the injection groove. The outer tube body of the condenser tube 16 is fitted onto the fixing frames 22.

[0031] Specifically, the injection molding feeder 21 is responsible for conveying the plastic raw material into the injection mold. Its discharge port passes through the injection molding block, allowing the plastic raw material to smoothly enter the injection groove for injection molding. Two sets of connectors on one side of the condenser pipe 16 are used to connect to external coolant supply equipment, ensuring that coolant can smoothly flow in and out of the condenser pipe 16. The fixing frame 22 is set on both sides of the injection groove and is sleeved on the outer tube of the condenser pipe 16, which serves to fix the position of the condenser pipe 16 and ensure that the condenser pipe 16 will not shift during operation, thereby stably cooling the product in the injection groove.

[0032] There are four sets of guide pillars 14. The mounting plate 13 has multiple slots. One end of each of the four guide pillars 14 is locked in a slot. Each of the four guide pillars 14 has a locking plate 23. Limiting holes are provided on both the four guide pillars 14 and the locking plate 23.

[0033] To further explain, the four sets of guide pillars 14 provide guidance for the relative movement of the upper injection mold 11 and the injection template 12. One end of the guide pillar 14 is locked in the slot of the mounting plate 13 to ensure the stable installation of the guide pillar 14. The clamping plate 23 is set on the guide pillar 14, and the limiting hole opened on it cooperates with the limiting hole on the guide pillar 14 to install the limiting component, limit the movement range of the upper injection mold 11 and the injection template 12 on the guide pillar 14, ensure the positional accuracy of the mold during the injection process, and prevent the mold from shifting and affecting the injection quality.

[0034] like Figures 2 to 4 As shown, the two sets of guide posts 14 are connected to each other by a first limiting post 24 passing through a limiting hole. The mounting plate 13 is provided with two sets of second limiting posts 31, which pass through the two sets of guide posts 14 and are mounted on the mounting plate 13.

[0035] Specifically, the first limiting post 24 passes through the limiting holes on the two sets of guide posts 14, connecting adjacent guide posts 14, enhancing the stability and integrity between the guide posts 14, and further improving the guiding accuracy. The second limiting post 31 is set on the mounting plate 13, passes through the two sets of guide posts 14 respectively and is fixed on the mounting plate 13, limiting the guide posts 14 from another direction, preventing the guide posts 14 from shaking or displacing due to force during injection molding, and ensuring the stability of the entire injection molding fixture.

[0036] Each of the four sets of slots is equipped with an electric push rod 25, and a damper 26 is provided between the four sets of electric push rods 25. A soft pad 27 is provided on the plate 23, and an ejection box 28 for ejecting the injection mold is provided on the soft pad 27. One side of each of the four sets of electric push rods 25 passes through the soft pad 27 and is inserted into the ejection box 28. One end of the damper 26 is connected to the plate 23.

[0037] Specifically, the electric push rod 25 is mounted on the slot and serves as the ejection power source. After injection molding, the electric push rod 25 extends, pushing the ejector box 28 upward, thereby ejecting the molded car skirt from the injection groove. The damper 26 is located between the four sets of electric push rods 25 and connected to the clamping plate 23. During the process of the electric push rod 25 pushing the ejector box 28, the damper 26 buffers the impact force of the clamping plate 23, preventing excessive speed from causing impact damage to the product after the ejection speed becomes uncontrolled, ensuring a smooth ejection process, and preventing the car skirt from being deformed or damaged due to excessive impact force at the moment of ejection. The soft pad 27 is located between the clamping plate 23 and the ejector box 28, on the one hand further buffering the ejection force of the electric push rod 25, and on the other hand preventing the ejector box 28 from directly contacting the clamping plate 23 and causing wear.

[0038] Multiple sets of guide grooves are provided on both sides of the ejector box 28. Ejector plates 29 are slidably arranged on the multiple sets of guide grooves. One end of the ejector plate 29 is connected to four sets of electric push rods 25, and the other end is inserted into the injection groove. Multiple sets of heat dissipation holes are provided on the ejector box 28.

[0039] Specifically, the guide groove on the ejector box 28 provides a sliding track for the ejector plate 29, allowing the ejector plate 29 to extend and retract into the injection groove under the push of the electric push rod 25. One end of the ejector plate 29 is connected to the electric push rod 25, and the other end passes into the injection groove, directly acting on the molded automotive side skirt to achieve product ejection. Multiple sets of heat dissipation holes on the ejector box 28 accelerate heat dissipation during injection molding, preventing the ejector box 28 from being affected by excessive temperature, thus extending its performance and service life. They also help reduce the temperature around the ejected components, preventing thermal impact on the molded automotive side skirt.

[0040] The specific usage and function of this embodiment are as follows:

[0041] First, prepare for injection molding by installing the injection fixture in the appropriate position on the injection molding machine and ensuring that the mounting plate 13 is fixed. Connect the external coolant supply equipment through the two sets of connectors on one side of the condenser pipe 16 to ensure unobstructed coolant circulation. Connect the heating pipe 15 to the power supply and set the appropriate heating temperature through the thermostat to allow the plastic material in the injection groove to achieve ideal flowability. At the same time, check the reserve of plastic raw material in the injection feeder 21 to ensure sufficient material.

[0042] The injection molding process begins with the injection molding machine started and the cylinders activated. The cylinders, acting as a power source, move downwards along four sets of guide posts 14, supported by the support platform 18 and the placement plate 19. One end of each guide post 14 is engaged in a slot on the mounting plate 13, providing guidance for the movement of the upper injection mold 11 and ensuring that the upper injection mold 11 closes with the injection template 12. During this process, the first limiting post 24 connects adjacent guide posts 14, enhancing the stability between them. The second limiting post 31 limits the guide posts 14 from another direction, preventing them from shaking or shifting, thus ensuring the stability of the entire injection molding fixture.

[0043] When the upper injection mold 11 and the injection mold platen 12 are in contact, the sealing ring 17 performs a sealing function to prevent the plastic melt from overflowing. The injection feeding machine 21 injects the plastic raw material into the injection groove through the discharge port provided on the injection pressure block. The heating tube 15 heats the plastic material in the injection groove according to the temperature set by the temperature controller, so that it maintains a suitable fluidity, evenly fills the injection groove, and improves the molding quality.

[0044] After injection molding, the product enters the cooling stage. Coolant circulates through condenser pipe 16 to cool the product within the injection groove, accelerating product setting. The outer side of condenser pipe 16 is fixed by a fixing frame 22 to ensure stable positioning during operation, thereby cooling the product and improving production efficiency.

[0045] After cooling, demolding is performed. The electric push rod 25, acting as the ejection power source, extends from the slot and pushes the ejector box 28 upwards. During this process, the damper 26 buffers the platen, preventing excessive ejection speed from impacting the product and ensuring a smooth ejection process. The soft pad 27 further buffers the ejection force of the electric push rod 25, while preventing direct contact between the ejector box 28 and the platen 23, thus preventing wear. The ejector plates 29, located in the guide grooves on both sides of the ejector box 28, extend along the guide grooves into the injection groove under the push of the electric push rod 25, directly acting on the molded automotive side skirt and ejecting it from the injection groove. Multiple sets of heat dissipation holes on the ejector box 28 accelerate heat dissipation throughout the injection molding process, preventing the ejector box 28 from overheating and affecting its performance and lifespan, while also preventing thermal impact on the molded automotive side skirt.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments.

Claims

1. A car skirt injection molding fixture with anti-deformation support, comprising an upper injection mold (11), an injection template (12), and a mounting plate (13), characterized in that: The mounting plate (13) is provided with multiple sets of guide posts (14). The upper injection mold (11) and the injection template (12) are both located on the multiple sets of guide posts (14). The injection template (12) is provided with a tube groove for accommodating objects. The injection template (12) is provided with an injection groove. The injection template (12) is provided with a heating tube (15). The tube groove is provided with a condenser tube (16). The body of the condenser tube (16) is located on both sides of the injection groove. A temperature controller is electrically connected to one side of the heating tube (15). The bottom of the upper injection mold (11) is provided with an injection pressure block corresponding to the injection groove. The bottom of the upper injection mold (11) is provided with a sealing ring (17) for fitting with the injection template (12).

2. The automotive skirt injection molding fixture with anti-deformation support according to claim 1, characterized in that: A support platform (18) is provided on one side of the mounting plate (13), and a placement plate (19) is provided on the support platform (18). Two sets of cylinders are provided on the placement plate (19), and one end of each set of cylinders passes through the placement plate (19) and is connected to the upper injection mold (11).

3. The automotive skirt injection molding fixture with anti-deformation support according to claim 2, characterized in that: An injection feeder (21) is provided on the upper injection mold (11). The discharge port of the injection feeder (21) is inserted through the injection pressure block. Two sets of connectors for connecting external instruments are provided on one side of the condenser tube (16). Fixing frames (22) are provided on both sides of the injection groove. The outer tube body of the condenser tube (16) is sleeved on the fixing frame (22).

4. The automotive skirt injection molding fixture with anti-deformation support according to claim 1, characterized in that: The guide posts (14) are arranged in four groups. The mounting plate (13) has multiple slots. One end of each of the four guide posts (14) is locked in the slot. Each of the four guide posts (14) has a locking plate (23). Both the guide posts (14) and the locking plate (23) have limit holes.

5. The automotive skirt injection molding fixture with anti-deformation support according to claim 4, characterized in that: The two sets of guide posts (14) are connected to each other by a first limiting post (24) passing through the limiting hole. The mounting plate (13) is provided with two sets of second limiting posts (31), which pass through the two sets of guide posts (14) and are mounted on the mounting plate (13).

6. The automotive skirt injection molding fixture with anti-deformation support according to claim 5, characterized in that: Each of the four sets of slots is equipped with an electric push rod (25), and a damper (26) is provided between the four sets of electric push rods (25). A soft pad (27) is provided on the card plate (23), and an ejector box (28) for ejecting the injection mold is provided on the soft pad (27). One side of each of the four sets of electric push rods (25) passes through the soft pad (27) and is inserted into the ejector box (28). One end of the damper (26) is connected to the card plate (23).

7. The automotive skirt injection molding fixture with anti-deformation support according to claim 6, characterized in that: Multiple sets of guide grooves are provided on both sides of the ejector box (28), and ejector plates (29) are slidably arranged on the multiple sets of guide grooves. One end of the ejector plate (29) is connected to four sets of electric push rods (25), and the other end is inserted into the injection groove. Multiple sets of heat dissipation holes are provided on the ejector box (28).

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