Injection mold for front wall of electric vehicle

Abstract

The utility model relates to an injection mold for a front wall of an electric vehicle and belongs to the technical field of injection molds. Comprising a top plate, a fixed mold plate, a movable mold plate, a foot plate and a bottom plate which are arranged in sequence, core pulling mechanisms are arranged on the two sides of the fixed mold plate, the core pulling mechanism on one side comprises a connecting frame, a sliding block in sliding connection is arranged in the connecting frame, a hydraulic cylinder fixedly connected with the fixed mold plate is arranged on one side of the connecting frame, and a telescopic rod arranged on the hydraulic cylinder is fixedly connected with the sliding block. An inclined sliding rail is arranged in the sliding block, a drawing block in sliding connection is arranged on the sliding rail, and one end of the drawing block extends into the forming cavity and is used for forming a mounting groove in the front wall plate; according to the scheme, the core pulling mechanism is used for forming the mounting groove structure on the dash panel, the core pulling mechanism can be pulled out before mold opening, demolding of a product is not affected, and due to the fact that the mounting groove in the dash panel is directly formed in the mold, secondary machining is not needed, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molds, and relates to an injection mold for the front apron of an electric vehicle. Background Technique

[0002] As a means of transportation that most people need to use frequently in their daily lives, the market demand for electric vehicles is also continuously expanding. Therefore, the structure of electric vehicle products is constantly improved and upgraded. The outer shell of an electric vehicle, as a part of the electric vehicle, is assembled by multiple plastic parts, and these plastic parts are usually manufactured by injection molds. An injection mold is internally provided with a forming cavity. After the plastic melt heated to the molten state is injected into the forming cavity and fills the inside of the forming cavity, it is cooled, and the plastic part will form a structure corresponding to the forming cavity. Then, the product is ejected and can be used for the installation of the outer shell.

[0003] The front apron is a baffle installed on the front side of the head of an electric vehicle. The front apron can be connected to the rear side plate to form the front end of the electric vehicle. Therefore, the structural strength and connection stability of the front apron play an important role in the safety of the electric vehicle during driving. Due to the different structures of the front apron, the molds used for manufacturing are also different. For some front apron products with special structures, corresponding structures need to be set on the mold for injection molding. Summary of the Invention

[0004] The purpose of the utility model is to address the problems existing in the prior art and propose an injection mold for the front apron of an electric vehicle. The technical problem to be solved by the utility model is to improve the structure of the injection mold and manufacture the front apron product.

[0005] The purpose of the utility model can be achieved by the following technical solutions: An injection mold for the front apron of an electric vehicle includes a top plate, a fixed template, a movable template, a foot plate, and a bottom plate arranged in sequence. A forming cavity for injection molding is provided between the fixed template and the movable template. The forming cavity is internally provided with a formed front apron. A reciprocating push plate is arranged inside the foot plate. A demolding mechanism for ejecting the front apron is arranged on the push plate. Transverse installation grooves are arranged on both sides of the front apron. Core-pulling mechanisms are arranged on both sides of the fixed template. One-sided core-pulling mechanism includes a connecting frame. A slidable slider is arranged inside the connecting frame. A hydraulic cylinder fixedly connected to the fixed template is arranged on one side of the connecting frame. A telescopic rod on the hydraulic cylinder is fixedly connected to the slider. An inclined slide rail is arranged inside the slider. A pulling block slidably connected to the slide rail is arranged on the slide rail. One end of the pulling block extends into the forming cavity and is used to form the installation groove on the front apron.

[0006] In the present solution, transverse mounting grooves are provided on both sides of the front panel, on which a front protection bumper can be installed to improve the safety of the electric vehicle. However, since the mounting grooves are provided transversely, they cannot be directly ejected by a demoulding mechanism. Therefore, core pulling mechanisms are provided on both sides of the fixed template. After the mold is cooled and formed, the hydraulic cylinder controls the retractable rod to be retracted, and the contraction rod drives the slider to move toward one side of the hydraulic cylinder. Since the slide rail is inclined toward one side of the hydraulic cylinder, the pull-out block on the slide rail will move along the track of the slide rail. However, since the pull-out block is supported by the fixed template in the vertical direction and can only move horizontally, it can be pulled out horizontally by the slider, and then the mold is opened, and the front panel is ejected by the demoulding mechanism to complete the production of the front panel. In the above manner, the mounting groove on the front panel is directly formed inside the mold, and no secondary processing is required, thereby improving production efficiency.

[0007] In the injection mold of the front panel of the electric vehicle, the demoulding mechanism includes a plurality of straight ejector pins and inclined ejector rods, one end of which passes through the movable mold plate and extends to the inside of the molding cavity to abut against the bottom of the front panel. The demoulding mechanism is composed of a plurality of straight ejector pins and inclined ejector rods, and is used to eject the front panel product inside the molding cavity after the mold is opened.

[0008] In the injection mold of the front panel of the electric vehicle, the bottom of the straight ejector pin is fixedly connected to the push plate, and the bottom of the inclined ejector rod is provided with a hinged sliding seat, and the sliding seat is fixedly connected to the push plate. When the push plate moves up, it can drive the straight ejector pin to move vertically upward to eject the front panel, and the inclined ejector rod can be ejected obliquely upward through the hinged sliding seat.

[0009] In the injection mold of the front panel of the electric vehicle, a plurality of integrally formed mounting positions are provided on both sides of the front panel, and the mounting positions include mounting posts, buckles and slots, and the mounting positions are all arranged toward the rear side of the front panel. The structure on the mounting position is used to connect with the structure on the rear side panel, and the structural strength of the mounting position on the front panel is enhanced by molding inside the mold.

[0010] In the injection mold of the front panel of the electric vehicle, the top of the lift rod is provided with a fixed lift block, the lift rod and the lift block are inclined toward the center of the mold, a side cavity is provided at the connection between the lift block and the movable template, the side cavity is connected to the molding cavity, and the installation is located inside the side cavity for cooling and molding. The lift rod drives the top lift block to extend from the inside of the movable template, and because the lift rod and the lift block are inclined toward the center of the mold, the lift block will separate from the installation position formed in the side cavity during the oblique ejection process, thereby ejecting the front panel from the mold.

[0011] In the injection mold for the front panel of the above-mentioned electric vehicle, a feed inlet is provided on the top plate. A diverter plate is connected to the bottom of the feed inlet. A number of nozzles are connected inside the diverter plate and the fixed template. The bottom of the nozzle is connected to the molding cavity. After the plastic raw material is heated to a molten state, it is injected from the feed inlet. After being diverted by the diverter plate, it flows into the nozzles at the bottom and finally into the molding cavity, filling the inside of the molding cavity, enabling the front panel to form a structure corresponding to the molding cavity.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] 1. In this solution, a core-pulling mechanism is used to form a transverse installation groove structure on the front panel. Before mold opening, the core-pulling mechanism can be withdrawn without affecting the demolding of the product. Since the installation groove on the front panel is directly formed inside the mold without the need for secondary processing, the production efficiency is improved. The installation groove can be used to install the front protection bar to improve safety during driving.

[0014] 2. In this solution, a side cavity is provided at the connection between the lifter block and the moving template to form the structure at the installation position. The structure at the installation position is used to connect with the structure on the rear side plate. By forming it inside the mold, the structural strength of the installation position on the front panel is enhanced. During the demolding process, the lifter block ejects obliquely and will separate from the installation position formed in the side cavity, thus ejecting the front panel from the mold without interference. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 is a right-side sectional structural schematic diagram of the utility model;

[0017] Figure 3 is a front-view half-sectional structural schematic diagram of the utility model;

[0018] Figure 4 is a three-dimensional sectional structural and partial enlarged structural schematic diagram of the utility model;

[0019] Figure 5 is a three-dimensional structural schematic diagram of the front panel product of the utility model.

[0020] In the figure, 1 is the top plate; 1a is the feed inlet; 1b is the diverter plate; 2 is the fixed template; 2a is the nozzle; 3 is the moving template; 4 is the foot plate; 4a is the push plate; 4b is the straight ejector pin; 4c is the angled ejector rod; 4c1 is the sliding seat; 4c2 is the angled ejector block; 5 is the bottom plate; 6 is the connecting frame; 6a is the slider; 6b is the slide rail; 6c is the pull-out block; 7 is the hydraulic cylinder; 7a is the telescopic rod; 8 is the molding cavity; 8a is the side cavity; 9 is the front apron; 9a is the mounting groove; 9b is the mounting position; 9b1 is the mounting post; 9b2 is the buckle; 9b3 is the card slot. Detailed implementation mode

[0021] The following are specific embodiments of the present invention and, in conjunction with the accompanying drawings, further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0022] Embodiment

[0023] As Figure 1 shown, the injection mold for the front apron of an electric vehicle includes a top plate 1, a fixed template 2, a moving template 3, a foot plate 4, and a bottom plate 5 arranged in sequence. The top plate 1 is provided with a feed inlet 1a. Core-pulling mechanisms are provided on both sides of the fixed template 2. The core-pulling mechanism on one side includes a connecting frame 6. The connecting frame 6 is fixedly connected to the fixed template 2. A hydraulic cylinder 7 fixedly connected to the fixed template 2 is provided on one side of the connecting frame 6. A reciprocating push plate 4a is provided inside the foot plate 4.

[0024] As Figure 2 shown, a molding cavity 8 for injection molding is provided between the moving template 3 and the fixed template 2. A telescopic rod 7a is provided on the hydraulic cylinder 7. A slidably connected slider 6a is provided inside the connecting frame 6. One side of the slider 6a is fixedly connected to the end of the telescopic rod 7a. An inclined slide rail 6b is provided inside the slider 6a. The slide rail 6b inclines towards the side where the hydraulic cylinder 7 is provided. A slidably connected pull-out block 6c is provided on the slide rail 6b. One end of the pull-out block 6c extends into the molding cavity 8.

[0025] As Figure 3 shown, a connected diverter plate 1b is provided at the bottom of the feed inlet 1a. A number of nozzles 2a are connected between the diverter plate 1b and the inside of the fixed template 2. The bottom of the nozzle 2a is connected to the molding cavity 8. A number of fixedly connected straight ejector pins 4b are provided on the push plate 4a. One end of the straight ejector pin 4b passes through the inside of the moving template 3 and extends to the bottom of the molding cavity 8.

[0026] As Figure 4As shown, a plurality of fixedly connected slide seats 4c1 are relatively arranged on both sides of the push plate 4a, a hinged inclined lift rod 4c is provided on the slide seat 4c1, a fixedly connected inclined lift block 4c2 is provided on the top of the inclined lift rod 4c, the top of the inclined lift block 4c2 extends into the molding cavity 8, and together with the upper surface of the movable template 3 constitutes the lower bottom surface of the molding cavity 8, and a side cavity 8a is provided at the connection between the molding cavity 8 and the movable template 3, and the side cavity 8a is communicated with the molding cavity 8.

[0027] like Figure 5 As shown, the front panel 9 is injection molded inside the dynamic mold plate 3, and the front panel 9 is an overall square structure. A headlight hole is provided on the front side of the front panel 9, and transverse mounting grooves 9a are provided on both sides of the front panel 9. A plurality of mounting positions 9b are provided on both sides of the front panel 9, and the mounting positions 9b include mounting columns 9b1, buckles 9b2 and slots 9b3. The mounting positions 9b are all arranged toward the rear side of the front panel 9, and the mounting positions 9b are injection molded inside the side cavity 8a.

[0028] The working principle of this scheme is as follows: Figures 1-5 As shown, the plastic raw material heated to a molten state is injected from the feed port 1a, flows into the nozzle 2a at the bottom through the diversion effect of the diverter plate 1b, and then injected into the molding cavity 8. After the molding cavity 8 is filled, the molten liquid inside the molding cavity 8 is quickly cooled and formed. Then, the telescopic rod 7a is retracted by the hydraulic cylinder 7, and the contraction rod drives the slider 6a to move toward one side of the hydraulic cylinder 7. Since the slide rail 6b is tilted toward one side of the hydraulic cylinder 7, the pull-out block 6c on the slide rail 6b will move along the track of the slide rail 6b, but since the pull-out block 6c is supported by the fixed mold plate 2 in the vertical direction, it can only move horizontally, so it can be pulled out horizontally by the slider 6a. Then open the mold and push the inner push plate 4a. The push plate 4a drives the straight ejector pin 4b and the inclined ejector rod 4c to move upward. Since the inclined ejector block 4c2 on the top of the inclined ejector rod 4c is ejected toward the center of the mold, the inclined ejector block 4c2 will be separated from the mounting position 9b during the ejection process, thereby ejecting the front panel 9 and completing the production of the front panel 9.

[0029] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0030] Although terms such as 1, top plate; 1a, feed inlet; 1b, diverter plate; 2, fixed template; 2a, nozzle; 3, moving template; 4, foot plate; 4a, push plate; 4b, straight ejector pin; 4c, inclined ejector rod; 4c1, sliding seat; 4c2, inclined ejector block; 5, bottom plate; 6, connecting frame; 6a, slider; 6b, slide rail; 6c, pulling block; 7, hydraulic cylinder; 7a, telescopic rod; 8, forming cavity; 8a, side cavity; 9, front apron; 9a, mounting groove; 9b, mounting position; 9b1, mounting post; 9b2, buckle; 9b3, clamping groove are used more frequently in this text, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present utility model; interpreting them as any kind of additional limitation is contrary to the spirit of the present utility model.

Claims

1. An injection mold for the front enclosure of an electric vehicle, comprising a top plate (1), a fixed template (2), a movable template (3), a foot plate (4) and a bottom plate (5) arranged in sequence. A molding cavity (8) for injection molding is provided between the fixed template (2) and the movable template (3). A formed front enclosure panel (9) is arranged in the molding cavity (8). A reciprocating push plate (4a) is arranged inside the foot plate (4). A demolding mechanism for ejecting the front enclosure panel (9) is arranged on the push plate (4a), and it is characterized in that, On both sides of the front apron (9), there are transverse installation grooves (9a). On both sides of the fixed template (2), there are core-pulling mechanisms. One-sided core-pulling mechanism includes a connecting frame (6). Inside the connecting frame (6), there is a slider (6a) connected in a sliding manner. On one side of the connecting frame (6), there is a hydraulic cylinder (7) fixedly connected to the fixed template (2). The telescopic rod (7a) provided on the hydraulic cylinder (7) is fixedly connected to the slider (6a). Inside the slider (6a), there is an inclined slide rail (6b). On the slide rail (6b), there is a pulling block (6c) connected in a sliding manner. One end of the pulling block (6c) extends into the molding cavity (8) to form the installation groove (9a) on the front apron (9).

2. The injection mold for the front panel of an electric vehicle according to claim 1, characterized in that, The demolding mechanism includes a number of straight ejector pins (4b) and inclined ejector rods (4c). One end of the straight ejector pins (4b) and inclined ejector rods (4c) passes through the moving template (3) and extends into the molding cavity (8) to abut against the bottom of the front apron (9).

3. The injection mold for the front panel of an electric vehicle according to claim 2, characterized in that, The bottom of the straight ejector pin (4b) is fixedly connected to the push plate (4a). The bottom of the inclined ejector rod (4c) is provided with a sliding seat (4c1) connected by hinge. The sliding seat (4c1) is fixedly connected to the push plate (4a).

4. The injection mold for the front panel of an electric vehicle according to claim 2, characterized in that, On both sides of the front apron (9), there are a number of integrally formed installation positions (9b). The installation positions (9b) include installation posts (9b1), buckles (9b2) and card slots (9b3). The installation positions (9b) are all arranged towards the rear side of the front apron (9).

5. The injection mold for the front panel of an electric vehicle according to claim 4, characterized in that, At the top of the inclined ejector rod (4c), there is an inclined ejector block (4c2) fixedly connected. The inclined ejector rod (4c) and the inclined ejector block (4c2) are inclined towards the center of the mold. At the connection between the inclined ejector block (4c2) and the moving template (3), there is a side cavity (8a). The side cavity (8a) is connected to the molding cavity (8). The installation positions (9b) are cooled and formed inside the side cavity (8a).

6. The injection mold for the front panel of an electric vehicle according to claim 1, wherein, On the top plate (1), there is a feed inlet (1a). At the bottom of the feed inlet (1a), there is a connected flow splitter plate (1b). The flow splitter plate (1b) is connected to a number of nozzles (2a) inside the fixed template (2). The bottom of the nozzles (2a) is connected to the molding cavity (8).

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