Dense pitched roof demoulding mechanism for rear mudguard of electric vehicle

Abstract

The utility model provides a dense pitched roof demoulding mechanism for a rear fender of an electric vehicle, which comprises a first mould body, a second mould body, a mould bottom plate, a top plate supporting seat, a top plate part and an edge pitched roof demoulding assembly, the edge pitched roof demolding assembly comprises a horizontal moving block and an inclined guide block integrally formed with the horizontal moving block, two side hole seats are arranged on the inner side of the inclined guide block, and a side hole connecting part is mounted at one end of each side hole seat. The edge pitched roof demolding assembly comprises the horizontal moving block and the inclined guide block integrally formed with the horizontal moving block, the two side hole seats are arranged on the inner side of the inclined guide block, and the side hole connecting parts are mounted at one ends of the two side hole seats, so that the side hole parts of the rear mudguard can be effectively treated, and the side hole parts of the rear mudguard can be effectively prevented from being damaged. And lateral core pulling is achieved through oblique movement, the formed rear fender is ejected out, and the rear fender is effectively separated.

Description

Technical Field

[0001] This utility model belongs to the field of mold technology and relates to a dense inclined ejection mechanism for the rear mudguard of electric vehicles. Background Technology

[0002] The rear mudguard of an electric vehicle is a plate structure installed behind the outer frame of the wheel. It is usually made of high-quality rubber, but engineering plastics are also used. The mudguard is usually a metal plate installed behind the wheel of a bicycle or motor vehicle.

[0003] Electric vehicle rear fenders are typically produced using injection molds. For example, a motorcycle rear fender mold disclosed in patent publication number CN208827028U includes an upper mold fixing plate, a lower mold fixing plate, an upper template, a lower template, a pair of mold feet, a slanted ejector seat, a pair of slanted ejector blocks, a predetermined number of ejection devices, and a driving device. In this design, the slanted ejector pins are always pressed against the bottom of the groove under the action of springs. Since the depth of the groove gradually decreases from the end away from the upper mold fixing plate to the end closer to the upper mold fixing plate, the slanted ejector pins gradually move relative to the slanted ejector blocks towards the molded motorcycle rear fender. Therefore, the molded motorcycle rear fender is gradually detached from the slanted ejector blocks, achieving automatic detachment of the slanted ejector blocks in the automated production process.

[0004] However, the aforementioned inclined ejection method has limitations on the sides of the mold. For the rear fender, the irregular edges make it impossible to handle the lateral undercuts or side holes, resulting in ineffective separation during the demolding process. Therefore, we have designed a dense inclined ejection mechanism for the rear fender of electric vehicles. Summary of the Invention

[0005] The purpose of this invention is to provide a densely inclined ejection mechanism for the rear fender of an electric vehicle, so as to solve the problems mentioned in the background art.

[0006] The objective of this utility model can be achieved through the following technical solution: a dense inclined ejection mechanism for the rear mudguard of an electric vehicle, comprising a first mold body, a second mold body, a mold base plate, a top plate support seat, and a top plate portion. The mold base plate is bolted to the bottom end of the second mold body. The second mold body is connected to the first mold body via a core insert. The bottom end of the top plate portion is threadedly connected to the first mold body via the top plate support seat. A gate position is provided at the top end of the top plate portion. A rear mudguard cavity one is provided at the bottom end of the first mold body. A rear mudguard cavity two, which mates with the rear mudguard cavity one, is provided at the top end of the second mold body. The mechanism also includes an edge inclined ejection assembly, which includes a horizontal moving block and an inclined guide block integrally formed with the horizontal moving block. Two side hole seats are provided on the inner side of the inclined guide block, and a side hole connecting part is installed at one end of each of the two side hole seats.

[0007] The aforementioned densely angled ejection mechanism for the rear fender of an electric vehicle also includes a side-angled ejection assembly. This assembly comprises two C-shaped bases, two sets of guide rails, and two angled ejector blocks. The two C-shaped bases are bolted to the top of both sides of the first mold body. The two sets of guide rails are installed on the inner sides of the corresponding C-shaped bases. Each angled ejector block is slidably connected to a C-shaped base via each set of guide rails. Each angled ejector block has an integrally formed angled rod on its inner side, with a cavity forming block and a cavity forming strip respectively installed at both ends of the angled rod. This design ensures a smooth and efficient ejection process, thereby improving demolding efficiency.

[0008] In the aforementioned electric vehicle rear fender dense inclined ejection mechanism, the first mold body has mating recesses on both sides, and each mating recess has a stepped portion integrally formed on the first mold body in the middle. The second mold body has insertion bosses on both sides, and each insertion boss has a contact surface at its end that connects to the stepped portion. The purpose of this design is to better fit the first mold body and the second mold body together, ensuring that the first mold body and the second mold body have good mold closing accuracy and positional accuracy.

[0009] In the aforementioned densely angled ejection mechanism for the rear fender of an electric vehicle, an angled guide post is provided at the through hole of the horizontal moving block, and a positioning pin is provided at the notch of the angled guide post. The purpose of this arrangement is to ensure a good positioning effect, so that the angled guide post can be better fixed in position after resetting.

[0010] Compared with the prior art, the advantages of the present invention for the dense inclined ejection mechanism of electric vehicle rear fender are as follows: by including a horizontal moving block and an inclined guide block integrally formed with the horizontal moving block in the edge inclined ejection component, two side hole seats are provided on the inner side of the inclined guide block, and a side hole connecting part is installed at one end of each of the two side hole seats. This enables the side hole part of the rear fender to be effectively processed, and the inclined movement realizes the lateral core pulling and ejection of the formed rear fender, effectively separating the rear fender. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the densely inclined demolding mechanism for the rear mudguard of an electric vehicle according to this utility model.

[0012] Figure 2 This is a schematic diagram of the three-dimensional structure of the first mold of the electric vehicle rear fender dense inclined top demolding mechanism of this utility model.

[0013] Figure 3 This is a schematic diagram of the specific three-dimensional structure of the second mold of the electric vehicle rear mudguard dense inclined top demolding mechanism of this utility model.

[0014] Figure 4This is a three-dimensional structural diagram of the inclined guide block of the dense inclined top demolding mechanism for the rear mudguard of an electric vehicle according to this utility model.

[0015] Figure 5 This is a three-dimensional structural diagram of the side hole seat of the densely inclined demolding mechanism for the rear mudguard of an electric vehicle according to this utility model.

[0016] Figure 6 This is a three-dimensional structural diagram of the inclined top block of the dense inclined top demolding mechanism for the rear mudguard of an electric vehicle according to this utility model.

[0017] In the diagram, 1. First mold body; 2. Second mold body; 3. Mold base plate; 4. Top plate support seat; 5. Top plate section; 6. Gate position; 7. Chamfer seat; 8. Guide rail section; 9. Step section; 10. Butt joint notch; 11. Rear mudguard cavity one; 12. Rear mudguard cavity two; 13. Insertion boss; 14. Contact surface; 15. Angled ejector block; 16. Angled rod; 17. Cavity forming block; 18. Cavity forming strip; 19. Horizontal moving block; 20. Angled guide block; 21. Side hole seat; 22. Angled guide post; 23. Positioning pin. Detailed Implementation

[0018] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0019] like Figure 1 , Figure 2 and Figure 3 As shown, this utility model relates to a densely inclined demolding mechanism for the rear mudguard of an electric vehicle.

[0020] Example 1: The inclined ejector demolding mechanism includes a first mold body 1, a second mold body 2, a mold base plate 3, a top plate support 4, and a top plate portion 5. The mold base plate 3 is bolted to the bottom of the second mold body 2. The second mold body 2 is connected to the first mold body 1 through a core insert. The bottom of the top plate portion 5 is threaded to the first mold body 1 through the top plate support 4. A gate position 6 is provided at the top of the top plate portion 5. A rear mudguard cavity 11 is provided at the bottom of the first mold body 1. A rear mudguard cavity 22 that mates with the rear mudguard cavity 11 is provided at the top of the second mold body 2. The mechanism also includes an edge inclined ejector demolding assembly. The edge inclined ejector demolding assembly includes a horizontal moving block 19 and an inclined guide block 20 integrally formed with the horizontal moving block 19. Two side hole seats 21 are provided on the inner side of the inclined guide block 20. A side hole connecting portion 23 is installed at one end of each of the two side hole seats 21.

[0021] Furthermore, a slanted guide post 22 is provided at the through hole of the horizontal moving block 19, and a positioning pin 24 is provided at the notch of the slanted guide post 22.

[0022] When the mold is closed, the horizontal moving block 19 moves back to its initial position. The notch of the inclined guide post 22 and the positioning pin 24 make the first mold body 1 and the second mold body 2 close together. The molten raw material is poured into the gate position 6 and flows along the gate position 6 to the rear mudguard cavity 11 and the rear mudguard cavity 22 for cooling and forming. When the mold is opened, the inclined movement realizes the side core pulling and ejection of the formed rear mudguard, effectively separating the rear mudguard. This allows the side hole part of the rear mudguard to be effectively treated.

[0023] Example 2: The inclined ejector mechanism includes a first mold body 1, a second mold body 2, a mold base plate 3, a top plate support 4, and a top plate portion 5. The mold base plate 3 is bolted to the bottom of the second mold body 2. The second mold body 2 is connected to the first mold body 1 for mold closing via a core insert. The bottom of the top plate portion 5 is threaded to the first mold body 1 via the top plate support 4. A gate position 6 is provided at the top of the top plate portion 5. A rear mudguard cavity 11 is provided at the bottom of the first mold body 1, and a cavity that closes with the rear mudguard cavity 11 is provided at the top of the second mold body 2. The rear fender cavity 12 also includes a side-sloping ejector assembly. The side-sloping ejector assembly includes two mortise seats 7, two sets of guide rails 8, and two sloping ejector blocks 15. The two mortise seats 7 are bolted to the top of both sides of the first mold body 1. The two sets of guide rails 8 are installed on the inner side of the corresponding mortise seats 7. Each sloping ejector block 15 is slidably connected to the mortise seat 7 through each set of guide rails 8. Each sloping ejector block 15 has an integrally formed sloping rod 16 on its inner side. Cavity forming blocks 17 and cavity forming strips 18 are respectively installed at both ends of the sloping rod 16.

[0024] In Embodiments 1 and 2, in order to better align the first mold body 1 and the second mold body 2 and ensure good assembly accuracy between them, the first mold body 1 has mating recesses 10 on both sides, and each mating recess 10 has a stepped portion 9 integrally formed on the first mold body 1 in the middle. The second mold body 2 has insertion bosses 13 on both sides, and each insertion boss 13 has a contact surface 14 at its end that connects to the stepped portion 9.

[0025] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.

Claims

1. A dense inclined ejection mechanism for the rear mudguard of an electric vehicle, comprising a first mold body (1), a second mold body (2), a mold base plate (3), a top plate support (4), and a top plate portion (5), wherein the mold base plate (3) is bolted to the bottom end of the second mold body (2), the second mold body (2) is connected to the first mold body (1) by a core insert, the bottom end of the top plate portion (5) is threadedly connected to the first mold body (1) by the top plate support (4), and a gate position (6) is provided at the top end of the top plate portion (5), characterized in that, It also includes an edge-sloping ejector demolding assembly, which includes a horizontal moving block (19) and an inclined guide block (20) integrally formed with the horizontal moving block (19). The inclined guide block (20) has two side hole seats (21) on its inner side, and a side hole connecting part (23) is installed at one end of each of the two side hole seats (21).

2. The electric vehicle rear fender dense inclined ejection mechanism according to claim 1, characterized in that, It also includes a side-sloping ejector assembly, which includes two C-shaped seats (7), two sets of guide rails (8), and two sloping ejector blocks (15). The two C-shaped seats (7) are bolted to the top of both sides of the first mold body (1), and the two sets of guide rails (8) are installed on the inner side of the corresponding C-shaped seats (7). Each sloping ejector block (15) is slidably connected to the C-shaped seat (7) through each set of guide rails (8).

3. The electric vehicle rear fender dense inclined ejection mechanism according to claim 2, characterized in that, Each inclined top block (15) has an integrally formed inclined rod (16) on its inner side, and cavity forming blocks (17) and cavity forming strips (18) are respectively installed at both ends of the inclined rod (16).

4. The electric vehicle rear fender dense inclined ejection mechanism according to claim 1, characterized in that, The first mold body (1) has mating recesses (10) on both sides, and each mating recess (10) has a step portion (9) integrally formed on the first mold body (1) in the middle. The second mold body (2) has insertion bosses (13) on both sides, and each insertion boss (13) has a contact surface (14) connecting the step portion (9) at its end.

5. The electric vehicle rear fender dense inclined ejection mechanism according to claim 1, characterized in that, A slanted guide post (22) is provided at the through hole of the horizontal moving block (19), and a positioning pin (24) is provided at the notch of the slanted guide post (22).

6. The electric vehicle rear fender dense inclined ejection mechanism according to claim 1, characterized in that, The bottom end of the first mold body (1) is provided with a rear mudguard cavity one (11), and the top end of the second mold body (2) is provided with a rear mudguard cavity two (12) that merges with the rear mudguard cavity one (11).

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