An injection molding device for a vehicle body shield

Abstract

The utility model discloses a kind of vehicle body protection piece injection molding devices, including the feeding barrel being set on injection molding machine main body, the inner chamber top of feeding barrel is equipped with infrared heating lamp, the inner chamber top of feeding barrel is rotatably installed with stirring shaft, spiral blade is installed on stirring shaft, the top of feeding barrel is equipped with motor, the output shaft of motor connects stirring shaft, the bottom of feeding barrel is equipped with discharge port, and discharge port is equipped with bottom plate, and round outlet aligned with the discharge port of feeding barrel is opened in bottom plate, gap is opened in the front side of bottom plate, baffle is inserted in gap, connecting plate is installed in the front side of baffle, electric push rod is installed in the left and right sides of bottom plate, and the output rod of electric push rod is fixed with connecting plate;The utility model can heat raw materials in feeding barrel quickly by setting infrared heating lamp in the inner chamber top of feeding barrel, help raw materials to dry moisture quickly, to avoid the problem that protection piece after injection molding exists local material shortage or internal bubble.

Description

Technical Field

[0001] This utility model relates to the field of vehicle body protective component processing technology, specifically to an injection molding device for vehicle body protective components. Background Technology

[0002] As an important component of automobile manufacturing, vehicle body protection components play a crucial role in protecting the vehicle body, enhancing its aesthetics, and improving its safety. With the continuous development of the automotive industry, the quality requirements for vehicle body protection components are also increasing. They not only need to have good mechanical properties to withstand various stresses and impacts during vehicle operation, but also need to have excellent weather resistance to resist corrosion under different climatic conditions and ensure long-term stable performance.

[0003] In the production of vehicle body protective parts, such as fenders and bumpers, these parts are injection molded using injection molding machines. However, during transportation and storage, the raw materials inevitably absorb moisture from the air, leading to an increase in the moisture content of the raw materials. Traditional injection molding machines are usually unable to dry the raw materials, causing the moisture in the raw materials to evaporate during the injection process. This ultimately affects the flow of the injection melt, resulting in partial material shortages or internal air bubbles in the molded protective parts, thus affecting product quality. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing an injection molding device for vehicle body protective components, thereby solving the problems mentioned in the background art.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] An injection molding device for vehicle body protective parts includes a feed hopper mounted on the main body of an injection molding machine. An infrared heating lamp is installed at the top of the inner cavity of the feed hopper. A stirring shaft is rotatably mounted at the top of the inner cavity of the feed hopper, and a spiral blade is installed on the stirring shaft. A motor is installed at the top of the feed hopper, and the output shaft of the motor is connected to the stirring shaft. A discharge port is provided at the bottom of the feed hopper, and a base plate is installed at the discharge port. A circular outlet aligned with the discharge port of the feed hopper is opened on the base plate. A slit is opened on the front side of the base plate, and a baffle is inserted into the slit. A connecting plate is installed on the front side of the baffle. Electric push rods are installed on both the left and right sides of the base plate. The output rod of the electric push rod is fixed to the connecting plate. A feed inlet is opened at the top of the feed hopper, and a funnel is installed on the feed inlet.

[0007] As a preferred embodiment of the injection molding device for vehicle body protective parts, the bottom of the feed hopper is shaped like a bucket, and an air hammer for assisting in material discharge is installed on the outer side of the bottom of the feed hopper.

[0008] As a preferred embodiment of the injection molding device for vehicle body protective components, the depth and width of the gap on the front side of the base plate are both greater than the diameter of the circular outlet on the base plate.

[0009] As a preferred embodiment of the injection molding device for vehicle body protective components, the size of the baffle can completely cover the circular outlet on the bottom plate.

[0010] As a preferred embodiment of the injection molding device for vehicle body protective components, the baffle can move back and forth in the gap of the base plate, and the extension and retraction direction of the output rod of the electric push rod is the same as the movement direction of the baffle.

[0011] As a preferred embodiment of the injection molding device for vehicle body protective parts, the main body of the injection molding machine includes a base, on which a mold clamping system and an injection system are installed. The extrusion nozzle of the injection system is connected to the feed port of the mold clamping system. The bottom plate is fixed to the top of the barrel of the injection system, and the circular outlet of the bottom plate is connected to the feed port at the top of the barrel of the injection system.

[0012] The beneficial effects of this utility model are:

[0013] This utility model's vehicle body protective part injection molding device uses an infrared heating lamp installed at the top of the inner cavity of the feeding barrel to quickly heat the raw materials inside. This not only helps to quickly dry the moisture in the raw materials but also preheats them. By setting a motor to drive the spiral blades on the stirring shaft to rotate, the device can turn the raw materials from the bottom of the feeding barrel to the top for heating, thereby ensuring that the raw materials in the feeding barrel are heated evenly and avoiding problems such as local material shortages or internal air bubbles in the injection-molded protective parts. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly described below. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of the injection molding device for the vehicle body protective parts described in this utility model.

[0016] Figure 2 This is a schematic diagram of the internal structure of the feed hopper described in this utility model.

[0017] Figure 3 This is a schematic diagram of the structure of the base plate described in this utility model.

[0018] In the picture:

[0019] 1. Base; 2. Mold clamping system; 3. Injection system; 4. Feed hopper; 5. Infrared heating lamp; 6. Stirring shaft; 7. Spiral blades; 8. Motor; 9. Base plate; 10. Baffle; 11. Connecting plate; 12. Electric push rod; 13. Funnel. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0022] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0023] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example 1:

[0025] like Figures 1 to 3As shown, this utility model provides an injection molding device for vehicle body protective parts, mainly composed of an injection molding machine body and a feed tank 4. The injection molding machine body includes a base 1, on which a mold clamping system 2 and an injection system 3 are installed. The extrusion nozzle of the injection system 3 is connected to the feed port of the mold clamping system 2. The injection system 3 is mainly used to heat the injection molding material to a molten state and push the melt into the mold clamping system 2. The mold clamping system 2 is mainly used to provide a closed cavity for the filling of the melt, ensuring the shape and dimensional accuracy of the product. The feed tank 4 is set on the injection molding machine body, and a red... An external heating lamp 5 is used to dry the raw materials entering the feed hopper 4 to remove moisture, thereby preventing partial material shortages or air bubbles in the molded protective parts due to moisture evaporation during injection molding. A stirring shaft 6 is rotatably mounted on the top of the inner cavity of the feed hopper 4, and a spiral blade 7 is installed on the stirring shaft 6. The stirring shaft 6 is driven to rotate by a motor 8, causing the spiral blade 7 to stir the injection molding raw materials, turning the lower raw materials to the top for drying. A feed inlet is opened at the top of the feed hopper 4, and a funnel 13 is installed on the feed inlet to facilitate the addition of injection molding raw materials. The bottom of the feed hopper 4... It is bucket-shaped and equipped with an air hammer for assisting material discharge. When discharge is required, the air hammer operates to help the injection molding material be quickly discharged from the discharge port. The bottom of the feed tank 4 has a discharge port, and a base plate 9 is installed at the discharge port. The base plate 9 has a circular outlet aligned with the discharge port of the feed tank 4. The base plate 9 is fixed to the top of the barrel of the injection system 3, and the circular outlet of the base plate 9 is connected to the feed port at the top of the barrel of the injection system 3. A slit is opened on the front side of the base plate 9, and a baffle 10 is inserted into the slit. The size of the baffle 10 is large enough to completely cover the circular outlet on the base plate 9. A connecting plate 11 is installed on the front side, and electric push rods 12 are installed on both the left and right sides of the base plate 9. The output rod of the electric push rod 12 is fixed to the connecting plate 11. The extension and retraction direction of the output rod of the electric push rod 12 is the same as the movement direction of the baffle 10. By extending and retracting the electric push rod 12, the baffle 10 can be moved back and forth in the gap of the base plate 9, thereby controlling the opening and closing of the discharge port. The depth and width of the gap on the front side of the base plate 9 are both greater than the diameter of the circular outlet on the base plate 9. When the baffle 10 is fully inserted into the gap, the baffle 10 can just cover the entire circular outlet on the base plate 9.

[0026] Example 2:

[0027] Based on Example 1, the structure of the feeding hopper 4 is further optimized. The feeding hopper 4 is made of smooth stainless steel, which reduces the residue of injection molding material in the hopper and improves the discharge efficiency. At the same time, a temperature sensor is installed on the top of the feeding hopper 4 to monitor the temperature of the plastic material in the hopper in real time and transmit the temperature data to the control system of the injection molding machine. This allows the operator to adjust the power of the infrared heating lamp 5 according to the temperature to ensure that the injection molding material is always at the optimal drying temperature. During the discharge process, when the air hammer is working, it works in conjunction with the electric push rod 12 to slowly push forward, so that the baffle 10 gradually moves away from the circular outlet, achieving stable discharge of the plastic material and avoiding the accumulation of plastic material in the barrel of the injection system 3 due to excessively fast discharge.

[0028] Example 3:

[0029] Based on Embodiment 1 and Embodiment 2, a buffer spring is installed at the connection between the electric push rod 12 and the connecting plate 11. When the electric push rod 12 extends or retracts, the buffer spring can absorb part of the impact force, reducing the damage to the baffle 10 and the bottom plate 9 caused by the rapid extension or retraction of the electric push rod 12. In actual production, the heating time of the infrared heating lamp 5, the rotation speed of the stirring shaft 6, and the extension or retraction speed of the electric push rod 12 are adjusted according to the different specifications of the body protective parts and the characteristics of the injection molding raw materials, so as to ensure that the injection molding device can meet different production needs.

[0030] Working principle and usage process of this utility model:

[0031] Before using the injection molding device for the body protective parts, it is necessary to carefully inspect the main body of the injection molding machine, including whether each component of the mold clamping system 2 and the injection system 3 is intact. For example, check whether the fixed mold plate and the moving mold plate are damaged, whether the mold clamping mechanism and the ejection mechanism can operate normally, and whether the barrel, screw and nozzle are clean and free of blockage. Then check whether the inside of the feed barrel 4 is clean, and whether the infrared heating lamp 5, stirring shaft 6, spiral blade 7, motor 8, base plate 9, baffle 10, electric push rod 12, etc. are normal, and ensure that all connecting parts are tight.

[0032] During use, select appropriate injection molding materials according to the requirements of the vehicle body protection parts, and add them to the funnel 13 at the top of the feed tank 4. Then, turn on the infrared heating lamp 5 to preheat and dry the injection molding materials in the feed tank 4. At the same time, start the motor 8 to drive the stirring shaft 6 and the spiral blade 7 to rotate and stir the materials, turning the materials at the bottom of the feed tank 4 to the top so that the materials are heated evenly. After drying for a period of time, control the electric push rod 12 to push forward, driving the baffle 10 to move forward in the gap of the bottom plate 9, gradually opening the circular outlet on the bottom plate 9, so that the injection molding materials can fall smoothly into the barrel of the injection system 3. During this period, start the air hammer on the feed tank 4 to assist the injection molding materials to be discharged from the outlet at the bottom of the feed tank 4. After the materials enter the injection system 3, they are heated into a molten state in its barrel. At the same time, the screw in the barrel rotates, pushing the melt forward and injecting it into the closed mold cavity of the mold closing system 2 through the extrusion nozzle of the injection system 3. Finally, after holding pressure and cooling, the mold is opened and the molded vehicle body protection parts are taken out.

[0033] It should be stated that the above-described specific embodiments are merely preferred embodiments of this utility model and the technical principles employed. Those skilled in the art should understand that various modifications, equivalent substitutions, and variations can be made to this utility model. However, such variations, as long as they do not depart from the spirit of this utility model, should be within the protection scope of this utility model. Furthermore, some terminology used in this application specification and claims is not limiting, but merely for ease of description.

Claims

1. A vehicle body protective component injection molding apparatus, comprising a feed hopper (4) disposed on the main body of an injection molding machine, characterized in that, An infrared heating lamp (5) is installed on the top of the inner cavity of the feeding barrel (4). A stirring shaft (6) is rotatably installed on the top of the inner cavity of the feeding barrel (4). A spiral blade (7) is installed on the stirring shaft (6). A motor (8) is installed on the top of the feeding barrel (4). The output shaft of the motor (8) is connected to the stirring shaft (6). The bottom of the feeding barrel (4) is provided with a discharge port, and a bottom plate (9) is installed at the discharge port. A circular outlet is opened on the bottom plate (9) and aligned with the discharge port of the feeding barrel (4). A gap is opened on the front side of the bottom plate (9), and a baffle (10) is inserted in the gap. A connecting plate (11) is installed on the front side of the baffle (10). Electric push rods (12) are installed on both the left and right sides of the bottom plate (9). The output rod of the electric push rod (12) is fixed to the connecting plate (11). A feed port is opened on the top of the feeding barrel (4), and a funnel (13) is installed on the feed port.

2. The injection molding apparatus for vehicle body protective parts according to claim 1, characterized in that, The bottom of the feed hopper (4) is shaped like a bucket, and an air hammer for assisting in the discharge is installed on the outer side of the bottom of the feed hopper (4).

3. The injection molding apparatus for vehicle body protective parts according to claim 1, characterized in that, The depth and width of the gap on the front side of the base plate (9) are both greater than the diameter of the circular outlet on the base plate (9).

4. The injection molding apparatus for vehicle body protective parts according to claim 1, characterized in that, The size of the baffle (10) can completely cover the circular outlet on the base plate (9).

5. The injection molding apparatus for vehicle body protective parts according to claim 1, characterized in that, The baffle (10) can move back and forth in the gap of the base plate (9), and the extension and retraction direction of the output rod of the electric push rod (12) is the same as the movement direction of the baffle (10).

6. The injection molding apparatus for vehicle body protective parts according to claim 1, characterized in that, The main body of the injection molding machine includes a base (1), on which a mold clamping system (2) and an injection system (3) are installed. The extrusion nozzle of the injection system (3) is connected to the feed port of the mold clamping system (2). The bottom plate (9) is fixed on the top of the barrel of the injection system (3), and the circular outlet of the bottom plate (9) is connected to the feed port at the top of the barrel of the injection system (3).

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