Injection mold for covering part of electric vehicle

Abstract

The utility model provides an electric vehicle covering part injection mold which comprises an upper installation plate, a lower installation plate, an upper mold base and a lower mold base, the upper mold base is fixedly installed at the bottom end of the upper installation plate, the lower mold base matched with the upper mold base is fixedly installed at the top end of the lower installation plate, a telescopic mold core is connected to the top of the lower mold base in a penetrating mode, and the telescopic mold core is connected with the lower mold base in a penetrating mode. Locking grooves are formed in the two sides of the lower die base correspondingly, and locking blocks are arranged on the two sides of the bottom of the upper die base correspondingly. According to the utility model, the mold core is telescopically arranged, so that the traditional mold core fixed assembly is replaced, the whole mold core can be separated from the formed electric vehicle covering part in the demolding process, and the traditional demolding by adopting an ejector pin is replaced, so that the demolding efficiency is improved, the surface integrity of the electric vehicle covering part is improved, and the deformation problem is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric vehicle accessories and relates to an injection mold for electric vehicle covering parts. Background Technique

[0002] The electric vehicle covering parts are one of the important components of electric vehicles. By covering the electric vehicle frame with the electric vehicle covering parts, on the one hand, the electric vehicle frame is protected, and on the other hand, the aesthetics of the electric vehicle is improved. The existing electric vehicle covering parts are generally formed by plastic injection molding.

[0003] During the use of traditional injection molds for electric vehicle covering parts, we found that after the upper mold and the lower mold are closed, there is no locking structure design, and the tightness of the upper mold and the lower mold during closing is poor, thus affecting the accuracy of the electric vehicle covering parts. At the same time, the formed electric vehicle covering parts are mainly demolded by ejector pins. During the demolding process, local deformation of the electric vehicle covering parts is likely to occur, affecting the integrity of the electric vehicle covering parts. Summary of the Invention

[0004] The purpose of the utility model is to provide an injection mold for electric vehicle covering parts to solve the problem that during the use of traditional injection molds for electric vehicle covering parts, as we found, after the upper mold and the lower mold are closed, there is no locking structure design, and the tightness of the upper mold and the lower mold during closing is poor, thus affecting the accuracy of the electric vehicle covering parts as mentioned in the above background technique.

[0005] The purpose of the utility model can be achieved by the following technical solutions: An injection mold for electric vehicle covering parts, including an upper mounting plate, a lower mounting plate, an upper mold base, and a lower mold base. The bottom end of the upper mounting plate is fixedly installed with an upper mold base. The top end of the lower mounting plate is fixedly installed with a lower mold base adapted to the upper mold base. A telescopic mold core is inserted through the top of the lower mold base. Locking grooves are provided on both sides of the lower mold base. Locking blocks are provided on both sides of the bottom of the upper mold base. The locking blocks are nested into the interior of the locking grooves for locking and fixing. A glue inlet is provided at the center of the upper mold base.

[0006] In the above injection mold for electric vehicle covering parts, inclined locking holes are provided on both sides of the locking blocks. Through holes are provided on both sides of the inner wall of the locking grooves. Oblique locking columns are inserted through the interiors of the two through holes. One end of each oblique locking column extends into the interior of the inclined locking hole.

[0007] In the above-mentioned injection mold for electric vehicle covering parts, cavities are provided on both inner sides of the lower mold base. Cross plates are arranged inside the two cavities. The other ends of the two inclined locking columns on the same side extend into the cavities and are fixedly connected to the side surfaces of the cross plates. First electric push rods are fixedly installed on both sides of the lower mold base. The telescopic ends of the two first electric push rods extend into the cavities and are fixedly connected to the centers of the other side surfaces of the cross plates.

[0008] In the above-mentioned injection mold for electric vehicle covering parts, limiting guide holes are provided at the four corners of the top end of the lower mold base. Limiting guide posts fixedly connected to the upper mold base are arranged at the aligned positions of the four limiting guide holes.

[0009] In the above-mentioned injection mold for electric vehicle covering parts, a fixing plate fixedly connected to the lower mounting plate is arranged at the bottom end of the lower mold base. Limiting rods are fixedly installed between the fixing plate and the lower mold base. A substrate is slidably connected between the two limiting rods. The top end of the substrate is fixedly connected to the bottom end of the mold core. A plurality of reset springs are fixedly installed at equal intervals between the substrate and the fixing plate.

[0010] In the above-mentioned injection mold for electric vehicle covering parts, T-shaped chutes are provided on both sides of the bottom end of the lower mold base. T-shaped sliders are slidably connected inside the two T-shaped chutes. Connecting rods are rotatably connected to the bottoms of the two T-shaped sliders. One ends of the two connecting rods are rotatably connected to the side surface of the substrate. Second electric push rods are fixedly installed on one side surface of the two T-shaped sliders. One end of the second electric push rod is fixedly connected to the side surface of the T-shaped slider.

[0011] Compared with the prior art, the advantages of the injection mold for electric vehicle covering parts of the present utility model are as follows:

[0012] 1. Through the telescopic setting of the mold core, replacing the traditional fixed assembly of the mold core, during the demolding process, the entire mold core can be separated from the formed electric vehicle covering parts, replacing the traditional use of ejector pins for demolding. This not only improves the demolding efficiency but also improves the integrity of the surface of the electric vehicle covering parts and avoids deformation problems.

[0013] 2. The cooperation between the locking blocks and the locking grooves provided between the upper mold base and the lower mold base can improve the clamping density after the upper mold and the lower mold are clamped together, thereby improving the processing accuracy of the electric vehicle covering parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the injection mold for electric vehicle covering parts of the present utility model.

[0015] Figure 2 is a schematic cross-sectional structural diagram of the lower mold base of the injection mold for electric vehicle covering parts of the present utility model.

[0016] Figure 3 It is a schematic diagram of the connection structure between the base plate and the mold core of the injection mold for the electric vehicle covering part of the present utility model.

[0017] In the figure, 1 is the upper mounting plate; 2 is the lower mounting plate; 3 is the upper mold base; 4 is the limit guide post; 5 is the glue inlet; 6 is the locking block; 7 is the inclined locking hole; 8 is the lower mold base; 9 is the locking groove; 10 is the through hole; 11 is the mold core; 12 is the limit guide hole; 13 is the first electric push rod; 14 is the cavity; 15 is the cross plate; 16 is the inclined locking column; 17 is the fixing plate; 18 is the limit rod; 19 is the base plate; 20 is the return spring; 21 is the connecting rod; 22 is the T-shaped chute; 23 is the second electric push rod; 24 is the T-shaped slider. Specific implementation mode

[0018] The following are specific embodiments of the present utility model and in conjunction with the attached drawings, the technical solutions of the present utility model are further described, but the present utility model is not limited to these embodiments.

[0019] As Figures 1 - 3 shown, the injection mold for the electric vehicle covering part of the present utility model includes an upper mounting plate 1, a lower mounting plate 2, an upper mold base 3 and a lower mold base 8. The bottom end of the upper mounting plate 1 is fixedly installed with an upper mold base 3, and the top end of the lower mounting plate 2 is fixedly installed with a lower mold base 8 adapted to the upper mold base 3. A retractable mold core 11 is inserted through the top of the lower mold base 8. Locking grooves 9 are opened on both sides of the lower mold base 8, and locking blocks 6 are arranged on both sides of the bottom of the upper mold base 3. The locking blocks 6 are nested inside the locking grooves 9 for locking and fixing, and a glue inlet 5 is opened at the center of the upper mold base 3.

[0020] Specifically, through the setting of the retractable mold core 11, rapid demolding can be realized, replacing the traditional ejector pin demolding, and improving the integrity of the electric vehicle covering part.

[0021] As Figure 1 、 Figure 2 and Figure 3 shown, in the injection mold for the electric vehicle covering part of the present utility model, inclined locking holes 7 are opened on both sides of the locking block 6, through holes 10 are opened on both sides of the inner wall of the locking groove 9, and inclined locking columns 16 are inserted through the two through holes 10. One end of the inclined locking column 16 extends into the inclined locking hole 7.

[0022] Cavities 14 are opened on both sides inside the lower mold base 8, cross plates 15 are arranged inside the two cavities 14, and the other ends of the two inclined locking columns 16 on the same side extend into the cavities 14 and are fixedly connected to the side surface of the cross plate 15. First electric push rods 13 are fixedly installed on both sides of the lower mold base 8, and the telescopic ends of the two first electric push rods 13 extend into the cavities 14 and are fixedly connected to the center of the other side surface of the cross plate 15.

[0023] Specifically, the movement of the cross plate 15 is driven by the first electric push rod 13, and the movement of the cross plate 15 drives the inclined locking column 16 to lock with the inclined locking hole 7, improving the tightness of the mold closing between the upper mold base 3 and the lower mold base 8.

[0024] Limit guiding holes 12 are provided at the four corners at the top end of the lower mold base 8, and limit guiding columns 4 fixedly connected to the upper mold base 3 are arranged at the alignment positions of the four limit guiding holes 12.

[0025] Specifically, through the cooperation of the limit guiding column 4 and the limit guiding hole 12, the accuracy of the mold closing between the upper mold base 3 and the lower mold base 8 is improved.

[0026] As Figure 1 、 Figure 2 and Figure 3 shown, in the injection mold for electric vehicle covering parts of the present utility model, a fixing plate 17 fixedly connected to the lower mounting plate 2 is provided at the bottom end of the lower mold base 8. A limit rod 18 is fixedly installed between the fixing plate 17 and the lower mold base 8. A substrate 19 is slidably connected between the two limit rods 18. The top end of the substrate 19 is fixedly connected to the bottom end of the mold core 11. A plurality of return springs 20 are fixedly installed at equal intervals between the substrate 19 and the fixing plate 17.

[0027] T-shaped sliding grooves 22 are provided on both sides at the bottom end of the lower mold base 8. T-shaped sliders 24 are slidably connected inside the two T-shaped sliding grooves 22. Connecting rods 21 are rotatably connected to the bottoms of the two T-shaped sliders 24. One ends of the two connecting rods 21 are rotatably connected to the side surface of the substrate 19. A second electric push rod 23 is fixedly installed on one side surface of the two T-shaped sliders 24. One end of the second electric push rod 23 is fixedly connected to the side surface of the T-shaped slider 24.

[0028] Specifically, the movement of the T-shaped slider 24 is driven by the second electric push rod 23. The connecting rod 21 is rotated by the movement of the T-shaped slider 24. The substrate 19 is pushed downward by the rotation of the connecting rod 21. The return of the substrate 19 is controlled by the return spring 20, so as to control the expansion and contraction of the mold core 11. Through the expansion and contraction of the mold core 11, the mold core 11 can be quickly separated from the formed electric vehicle covering part, facilitating demolding, replacing the traditional ejector pin demolding, and improving the integrity of the electric vehicle covering part.

[0029] Specific implementation: When using this injection mold for electric vehicle covers, first assemble the upper mold base 3 and the lower mold base 8 into an electric injection molding machine and turn on the power supply. When injecting the electric vehicle cover, after the upper mold base 3 and the lower mold base 8 are closed, at this time, the locking block 6 and the locking groove 9 are locked. Then, turn on the first electric push rod 13, and push the cross plate 15 to move through the first electric push rod 13. Push the inclined locking column 16 to insert into the inclined locking hole 7 through the cross plate 15 to lock the upper mold base 3 and the lower mold base 8. Then, carry out pouring. After pouring is completed, the first electric push rod 13 contracts to drive the inclined locking column 16 to separate from the inclined locking hole 7. Then, turn on the second electric push rod 23, and push the T-shaped slider 24 to move through the second electric push rod 23. Squeeze the substrate 19 to move downward through the T-shaped slider 24, and drive the mold core 11 to move downward through the downward movement of the substrate 19, so that the mold core 11 is separated from the electric vehicle cover for demolding.

[0030] The content not detailedly described in this specification belongs to the prior art well-known to those skilled in the art. The specific embodiments described herein are only illustrative examples of the spirit of the present utility model. Those skilled in the technical field to which the present utility model pertains can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

Claims

1. An injection mold for an electric vehicle cover, comprising an upper mounting plate (1), a lower mounting plate (2), an upper mold base (3) and a lower mold base (8), wherein the upper mold base (3) is fixedly mounted on the bottom end of the upper mounting plate (1), and the lower mold base (8) adapted to the upper mold base (3) is fixedly mounted on the top end of the lower mounting plate (2), wherein: A retractable mold core (11) is inserted and connected to the top of the lower mold base (8), locking grooves (9) are provided on both sides of the lower mold base (8), and locking blocks (6) are provided on both sides of the bottom of the upper mold base (3), and the locking blocks (6) are nested in the locking grooves (9) for locking and fixing, and a glue inlet (5) is provided at the center of the upper mold base (3).

2. The electric vehicle cover injection mold according to claim 1, characterized in that: The locking block (6) is provided with oblique locking holes (7) on both sides, the inner wall of the locking groove (9) is provided with through holes (10) on both sides, and the interiors of the two through holes (10) are both connected with oblique locking columns (16), and one end of the oblique locking column (16) extends to the interior of the oblique locking hole (7).

3. The electric vehicle cover injection mold according to claim 2, characterized in that: Both sides of the lower die base (8) are provided with cavities (14), and both cavities (14) are provided with transverse plates (15). The other ends of the two oblique locking columns (16) located on the same side extend into the interior of the cavities (14) and are fixedly connected to the side of the transverse plates (15). Both sides of the lower die base (8) are fixedly installed with first electric push rods (13), and the telescopic ends of the two first electric push rods (13) extend into the interior of the cavities (14) and are fixedly connected to the center of the other side of the transverse plates (15).

4. The electric vehicle cover injection mold according to claim 3, characterized in that: Limiting guide holes (12) are provided at four corners of the top of the lower die seat (8), and limiting guide pillars (4) fixedly connected to the upper die seat (3) are provided at the aligned positions of the four limiting guide holes (12).

5. The electric vehicle cover injection mold according to claim 4, characterized in that: A fixing plate (17) fixedly connected to the lower mounting plate (2) is provided at the bottom end of the lower die base (8); a limiting rod (18) is fixedly installed between the fixing plate (17) and the lower die base (8); a base plate (19) is slidably connected between the two limiting rods (18); the top end of the base plate (19) is fixedly connected to the bottom end of the mold core (11); and a plurality of return springs (20) are fixedly installed at equal distances between the base plate (19) and the fixing plate (17).

6. The electric vehicle cover injection mold according to claim 5, characterized in that: Both sides of the bottom end of the lower die base (8) are provided with T-shaped slide grooves (22), the interiors of the two T-shaped slide grooves (22) are slidably connected with T-shaped sliders (24), the bottoms of the two T-shaped sliders (24) are rotatably connected with connecting rods (21), one end of the two connecting rods (21) is rotatably connected to the side of the base plate (19), and a second electric push rod (23) is fixedly installed on one side of the two T-shaped sliders (24), and one end of the second electric push rod (23) is fixedly connected to the side of the T-shaped slider (24).

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