An injection mold for automobile chassis

Abstract

The utility model relates to the technical field of injection molds, specifically to an automobile chassis injection mold, comprising a mold body, a cleaning mechanism being arranged at the rear of the mold body, a buffer mechanism being arranged at the top of the mold body, the cleaning mechanism comprising a dust suction pipe, a ventilation pipe, and a suction fan, the dust suction pipe being fixedly connected to the rear of the mold body, the ventilation pipe being fixedly connected to one end of the dust suction pipe away from the mold body, and the suction fan being fixedly connected to the bottom of the ventilation duct, so that the inside of the mold can be cleaned before and after use, so as to avoid dust and other impurities from mixing into the injection molding process, reduce the defects, spots or other defects of the product caused thereby, and make the surface of the product smoother and cleaner.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an automobile chassis injection mold. Background Art

[0002] The technical background of automobile chassis injection mold is a crucial link in the field of automobile manufacturing. As the basic structure of the car, the chassis bears the function of supporting and connecting various key components, including the suspension system, transmission system, braking system, etc. The plastic parts on the chassis are manufactured by injection mold processing, such as guard plates, fenders, chassis covers, etc. These parts not only require a certain strength and durability, but also need to conform to the appearance and aerodynamic principles of automobile design to ensure the overall performance and safety of the car. In the technical background of automobile chassis injection mold, the first thing to consider is material selection. Usually, the materials used for these molds are engineering plastics, such as polypropylene (PP), polyethylene (PE), polycarbonate (PC), etc. These materials have good mechanical properties, wear resistance, high temperature resistance and other characteristics, which can meet the use requirements of automobile chassis parts. Secondly, mold design is a key link in the technical background of automobile chassis injection mold. Mold design needs to take into account the complex shape and high precision requirements of the product, including mold structure, runner system, cooling system, injection system, etc. Reasonable mold design can ensure that the plastic material can fully fill the mold cavity and the quality of the molded product is good. In the mold manufacturing process, the use of advanced processing technology is also crucial. The application of technologies such as CNC machine tool processing, EDM, and wire cutting can ensure the accuracy and surface quality of mold parts. After the mold is manufactured, strict quality control and testing are required. Quality control of mold size detection, material hardness testing, mold life testing and other links can ensure the performance and stability of the mold. Automobile chassis injection molds are widely used in the automobile manufacturing industry, including the production of chassis parts for passenger cars, commercial vehicles, engineering vehicles and other types of vehicles. Their precision manufacturing and stable performance are of great significance to automobile manufacturing, and can ensure the quality and performance of automobile chassis parts, thereby ensuring the safety and reliability of the car.

[0003] The patent with application number CN201620819690.8 involves a long-life automobile injection mold, which includes a movable mold plate, a fixed mold plate and a lateral core pulling mechanism. A rack is fixedly arranged on the front of the fixed mold plate, and the rack is arranged perpendicular to the mold opening direction of the long-life automobile injection mold. The rack extends to the outside of the fixed mold plate along the length direction. The lateral core pulling mechanism includes a wedge block and a slider. The wedge block is fixedly connected to the fixed mold plate by bolts, and the slider is slidably connected to the movable mold plate. The wedge block and the slider are arranged opposite to each other, and a convex block is arranged on the side of the wedge block, and a corresponding groove is arranged on the side of the slider opposite to the wedge block. A gear matching the rack is arranged on the front of the wedge block. The long-life automobile injection mold provided by the utility model can reduce the clamping force of the casting on the lateral core through the cooperation of the rack and pinion structure and the protrusion and groove before opening the mold, which is beneficial to extending the service life of the lateral core pulling mechanism, and its structure is simple, operation is convenient, and reliability is high. However, this device is difficult to effectively clean the mold before compression molding, which may cause dust and other impurities to mix into the injection molding process, increasing product flaws, spots or other defects. In view of this, we propose an automobile chassis injection mold to solve the above problems. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides an automobile chassis injection mold, which solves the problems raised in the above background technology. To achieve the above purpose, the utility model is implemented through the following technical solutions: an automobile chassis injection mold, including a mold body, a cleaning mechanism is provided at the rear of the mold body, a buffer mechanism is provided at the top of the mold body, the cleaning mechanism includes a dust suction pipe, a ventilation pipe, and a suction fan, the dust suction pipe is fixedly connected to the rear of the mold body, the ventilation pipe is fixedly connected to the end of the dust suction pipe away from the mold body, and the suction fan is fixedly connected to the bottom of the ventilation pipe. Cleaning the mold can remove dirt, residues, grease and other impurities on the mold surface to ensure that the mold surface is smooth. This helps to prevent dirt from entering the plastic, thereby reducing product surface defects and improving product quality and appearance.

[0005] Preferably, the cleaning mechanism also includes an ash storage box, a trigger plate, a trigger rod, and a connecting rod. The ash storage box is fixedly connected to the rear of the suction fan, the trigger plate is rotatably connected to the inner wall of the ash storage box, the trigger rod is slidably connected to the inner wall of the ash storage box, and the connecting rod is fixedly connected to the surface of the trigger rod. Cleaning the mold can effectively remove dirt and residue on the surface to prevent their accumulation and deposition during the use of the mold, which helps to reduce wear and corrosion of the mold, extend the service life of the mold, and reduce the maintenance cost of the mold.

[0006] Preferably, the trigger plate is installed on the motion track of the trigger rod, and the dust suction tube is fixedly connected to the mold body. The clean mold surface helps the injection plastic to smoothly fill the mold cavity and reduce resistance and friction during the injection molding process. This can improve the efficiency of injection molding production, reduce failures and downtime during the production process, and improve the stability and continuity of the production line.

[0007] Preferably, the buffer mechanism includes a spring telescopic rod, a lower pressure plate, and a short rod, wherein the spring telescopic rod is fixedly connected to the inner wall of the mold body, the lower pressure plate is fixedly connected to the top of the spring telescopic rod, and the short rod is fixedly connected to the rear of the lower pressure plate. The buffer can reduce sudden impact and vibration during the pressurization process, and effectively reduce the impact force on the mold and pressurization equipment. This helps to extend the service life of the mold and equipment and reduce maintenance and repair costs.

[0008] Preferably, the buffer mechanism further comprises a fixed rod and a blocking plate, wherein the fixed rod is fixedly connected to the right side of the lower pressing plate, and the blocking plate is fixedly connected to the end of the fixed rod away from the lower pressing plate. The buffer can make the pressurization process smoother and reduce the deformation of the injection molded parts and the internal stress concentration caused by sudden pressurization. This helps to improve the molding accuracy and quality stability of the injection molded parts.

[0009] Preferably, the surface of the spring telescopic rod is in contact with the inner wall of the mold body, and the right side of the short rod is fixedly connected to the end of the linkage rod away from the trigger rod. Sudden impact during pressurization may cause the mold parts to loosen or break, or even cause damage to the mold. The buffer device can effectively reduce such impact and protect the integrity and stability of the mold.

[0010] Preferably, the surface of the baffle plate is slidably connected to the inner wall of the mold body, and the buffer device can make the pressurization process more stable and controllable, reducing vibration and fluctuation during the pressurization process. This helps to improve production efficiency and reduce downtime and production line failures caused by abnormal conditions during the pressurization process.

[0011] It can be seen from the above technical solutions that the automobile chassis injection mold provided in the embodiments of this specification has at least the following beneficial effects:

[0012] (1) The utility model uses the cooperation between the dust suction pipe, ventilation pipe, suction fan, dust storage box, trigger plate, trigger rod and linkage rod to clean the inside of the mold before and after use, thereby preventing dust and other impurities from mixing into the injection molding process, reducing the resulting product flaws, spots or other defects, and making the product surface smoother and cleaner.

[0013] (2) The utility model uses the coordinated operation of the spring telescopic rod, the lower pressure plate, the fixed rod, the baffle plate, the short rod and the long rod. When the mold is in the process of pressure forming, the lower pressure plate and the spring telescopic rod can buffer the upper pressure mechanism, effectively reducing the strong impact between the various parts of the mold and between the mold and the equipment caused by the moment of downward pressure, reducing the degree of wear, extending the service life of the mold and the equipment, making the pressure transmission more stable, and avoiding defects, deformation or damage to the product due to excessive impact force. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a half-section diagram of the overall structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the trigger plate structure in the utility model;

[0018] Figure 4 It is a schematic diagram of the structure of the lower pressure plate in the utility model.

[0019] In the figure: 1. mold body; 2. cleaning mechanism; 201. dust suction pipe; 202. ventilation pipe; 203. suction fan; 204. ash storage box; 205. trigger plate; 206. trigger rod; 207. connecting rod; 3. buffer mechanism; 301. spring telescopic rod; 302. lower pressure plate; 303. fixing rod; 304. blocking plate; 305. short rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example 1

[0021] See also Figure 1-Figure 4As shown, an automobile chassis injection mold includes an automobile chassis injection mold, including a mold body 1, a cleaning mechanism 2 is arranged at the rear of the mold body 1, a buffer mechanism 3 is arranged on the top of the mold body 1, the cleaning mechanism 2 includes a dust suction pipe 201, a ventilation pipe 202, and a suction fan 203, the dust suction pipe 201 is fixedly connected to the rear of the mold body 1, the ventilation pipe 202 is fixedly connected to the end of the dust suction pipe 201 away from the mold body 1, the suction fan 203 is fixedly connected to the bottom of the ventilation pipe 202, the cleaning mechanism 2 also includes a dust storage box 204, a trigger plate 205, a trigger rod 206, a connecting rod 207, a connecting rod 208, a connecting rod 209, a connecting rod 210, a connecting rod 211, a connecting rod 212, a connecting rod 213, a connecting rod 214, a connecting rod 215, a connecting rod 216, a connecting rod 217, a connecting rod 218, a connecting rod 219, a connecting rod 220, a connecting rod 230, a connecting rod 231, a connecting rod 232, a connecting rod 233, a connecting rod 234, a connecting rod 235, a connecting rod 236, a connecting rod 237, a connecting rod 238, a connecting rod 239, a connecting rod 240, a connecting rod 241, a connecting rod 242, a connecting rod 243, a connecting rod 244, a connecting rod 245, a connecting rod 246, a connecting rod 247, a connecting rod 248, a connecting rod 249, a connecting rod 250, a connecting rod 251, a connecting rod 252, a connecting rod 253, a connecting rod 254, a connecting rod The movable rod 207 and the ash storage box 204 are fixedly connected to the rear part of the suction fan 203, the trigger plate 205 is rotatably connected to the inner wall of the ash storage box 204, the trigger rod 206 is slidably connected to the inner wall of the ash storage box 204, the connecting rod 207 is fixedly connected to the surface of the trigger rod 206, and the trigger plate 205 is installed on the movement trajectory of the trigger rod 206. The dust suction pipe 201 is fixedly connected to the mold body 1, so that the inside of the mold can be cleaned before and after use, avoiding dust and other impurities from mixing into the injection molding process, reducing the resulting product flaws, spots or other defects, and making the product surface smoother and cleaner. Example 2

[0022] See also Figure 1-Figure 4 As shown, the buffer mechanism 3 includes a spring telescopic rod 301, a lower pressing plate 302, and a short rod 305. The spring telescopic rod 301 is fixedly connected to the inner wall of the mold body 1, the lower pressing plate 302 is fixedly connected to the top of the spring telescopic rod 301, and the short rod 305 is fixedly connected to the rear of the lower pressing plate 302. The buffer mechanism 3 also includes a fixed rod 303 and a blocking plate 304. The fixed rod 303 is fixedly connected to the right side of the lower pressing plate 302, and the blocking plate 304 is fixedly connected to the end of the fixed rod 303 away from the lower pressing plate 302. The surface of the spring telescopic rod 301 is close to the inner wall of the mold body 1. They are in contact with each other, and the right side of the short rod 305 is fixedly connected to the end of the connecting rod 207 away from the trigger rod 206. The surface of the blocking plate 304 is slidably connected to the inner wall of the mold body 1. When the mold is in the pressurized molding operation, the upper pressurizing mechanism can be buffered by the action of the lower pressure plate 302 and the spring telescopic rod 301, effectively reducing the strong impact between the various parts of the mold and between the mold and the equipment caused by the instantaneous downward pressure, reducing the degree of wear, extending the service life of the mold and the equipment, making the pressure transmission smoother, and avoiding defects, deformation or damage to the product due to excessive impact force.

[0023] When the automobile chassis injection mold of the utility model is in use, the operator starts the suction fan 203, the suction fan 203 generates suction force, and uses the ventilation pipe 202 to make the dust suction pipe 201 clean the mold before work, clean all the dust in the mold, keep the cleanliness of the mold, avoid dust and other impurities from mixing into the injection molding process, reduce the defects, spots or other defects of the product caused by this, make the surface of the product smoother and cleaner, and discharge the sucked dust into the ash storage box 204 for storage. After cleaning, the operator adds plastic material into the mold and starts the pressurizing device to pressurize the plastic material in the mold. When the pressurizing device moves downward and pressurizes, it will contact the lower pressing plate 302, so that the lower pressing plate 302 presses the spring telescopic rod 301 downward. The lower pressure plate 302 drives the fixing rod 303 and the blocking plate 304 to move downward, so that the blocking plate 304 blocks the dust suction port, and prevents the plastic material from being squeezed by the pressure device and rushing into the dust suction port, thereby blocking the dust suction port. At the same time, the lower pressure plate 302 drives the short rod 305 to move downward, and the short rod 305 drives the connecting rod 207 to move downward, and the connecting rod 207 drives the trigger rod 206 to move downward, so that the bottom of the trigger rod 206 contacts the trigger plate 205, and the trigger plate 205 opens downward to remove the dirt inside the ash storage box 204, thereby maintaining the cleanliness of the device body.

[0024] The above implementation methods are only used to illustrate the embodiments of the present utility model, and are not limitations of the embodiments of the present utility model. Ordinary technicians in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the embodiments of the present utility model. Therefore, all equivalent technical solutions also belong to the scope of the embodiments of the present utility model. The patent protection scope of the embodiments of the present utility model should be limited by the claims.

Claims

1. An automobile chassis injection mold, comprising a mold body (1), characterized in that: A cleaning mechanism (2) is arranged at the rear of the mold body (1), and a buffer mechanism (3) is arranged at the top of the mold body (1). The cleaning mechanism (2) comprises a dust suction pipe (201), a ventilation pipe (202), and a suction fan (203). The dust suction pipe (201) is fixedly connected to the rear of the mold body (1), the ventilation pipe (202) is fixedly connected to an end of the dust suction pipe (201) away from the main body of the mold body (1), and the suction fan (203) is fixedly connected to the bottom of the ventilation pipe (202).

2. The automobile chassis injection mold according to claim 1, characterized in that: The cleaning mechanism (2) further comprises an ash storage box (204), a trigger plate (205), a trigger rod (206), and a linkage rod (207); the ash storage box (204) is fixedly connected to the rear of the suction fan (203); the trigger plate (205) is rotatably connected to the inner wall of the ash storage box (204); the trigger rod (206) is slidably connected to the inner wall of the ash storage box (204); and the linkage rod (207) is fixedly connected to the surface of the trigger rod (206).

3. The automobile chassis injection mold according to claim 2, characterized in that: The trigger plate (205) is mounted on the movement track of the actuating rod (206), and the dust suction pipe (201) is fixedly connected to the mold body (1).

4. The automobile chassis injection mold according to claim 3, characterized in that: The buffer mechanism (3) comprises a spring telescopic rod (301), a lower pressing plate (302), and a short rod (305); the spring telescopic rod (301) is fixedly connected to the inner wall of the mold body (1); the lower pressing plate (302) is fixedly connected to the top of the spring telescopic rod (301); and the short rod (305) is fixedly connected to the rear of the lower pressing plate (302).

5. The automobile chassis injection mold according to claim 4, characterized in that: The buffer mechanism (3) further comprises a fixing rod (303) and a blocking plate (304), wherein the fixing rod (303) is fixedly connected to the right side of the lower pressing plate (302), and the blocking plate (304) is fixedly connected to an end of the fixing rod (303) away from the lower pressing plate (302).

6. The automobile chassis injection mold according to claim 5, characterized in that: The surface of the spring telescopic rod (301) is in contact with the inner wall of the mold body (1), and the right side of the short rod (305) is fixedly connected to an end of the linkage rod (207) away from the trigger rod (206).

7. The automobile chassis injection mold according to claim 6, characterized in that: The surface of the blocking plate (304) is slidably connected to the inner wall of the mold body (1).

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