Injection mold for cover plate of rear clothes rack of electric vehicle

Abstract

The utility model relates to an injection mold for a rear clothes rack cover plate of an electric vehicle and belongs to the technical field of injection molds. A reciprocating pushing block is arranged between the fixed mold plate and the movable mold plate, a forming part is arranged at the end, close to the inner side of the mold, of the pushing block, a forming cavity is defined by the outer side wall of the forming part and the connecting face of the fixed mold plate and the movable mold plate jointly, a cover plate for injection molding is arranged in the forming cavity, and an ejector block capable of extending out of the forming part is arranged in the pushing block; according to the scheme, one end of the cover plate wraps the outer side of the forming part, a circle of annular side wall can be formed on the cover plate, the cover plate can be inserted into the tail frame of the electric vehicle through the side wall structure, an integrated structure is adopted for production and use, a split type buckling structure of an upper cover plate and a lower cover plate in the prior art is optimized, and the production efficiency is improved. And through the forming structure and the demolding mechanism in the mold, the cover plate can be produced and demolded, the problem that two molds are needed for respective production in the prior art is solved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molds and relates to an injection mold for a rear clothes hanger cover plate of an electric vehicle. Background Art

[0002] As a common means of transportation, electric vehicles are widely used in people's daily lives. In the structure of electric vehicles, the rear clothes rack of electric vehicles includes an upper cover and a lower cover, which are buckled on the tail rack to carry people or goods. Since the upper cover and the lower cover are made of plastic raw materials, they are mostly produced by mold injection molding. The upper cover and the lower cover are produced separately using molds with different cavity structures.

[0003] However, the injection mold in the prior art still has some shortcomings. The prior art adopts a structure in which the upper and lower cover plates are buckled together. Therefore, during the production process, the upper and lower cover plate structures need to be manufactured separately. Since the product is produced by mold injection, two molds with different molding cavity structures need to be used, which increases the production cost. At the same time, since the rear hanger cover plate adopts a split structure, during the installation of the upper and lower cover plates, the installation process is increased, which reduces the production efficiency. Summary of the invention

[0004] The purpose of the utility model is to solve the problems existing in the prior art and to propose an injection mold for a rear clothes hanger cover of an electric vehicle. The technical problem to be solved by the utility model is: how to reduce the cost required in the production process of the rear clothes hanger cover.

[0005] The purpose of the utility model can be achieved through the following technical solutions: an injection mold for a rear clothes hanger cover of an electric vehicle, comprising a top plate, a fixed mold plate, a movable mold plate, a foot plate and a bottom plate arranged in sequence, a push plate that moves back and forth is provided on the inner side of the foot plate, a straight push rod that is fixedly connected is provided on the push plate, a reciprocating push block is provided between the fixed mold plate and the movable mold plate, one end of the straight push rod passes through the movable mold plate and is fixedly connected to the push block, a molding part is provided at one end of the push block close to the inner side of the mold, an outer side wall of the molding part, a connecting surface of the fixed mold plate and the movable mold plate are jointly enclosed to form a molding cavity, an injection-molded cover plate is provided inside the molding cavity, a push block that can extend from the molding part is provided inside the push block, and a fixed oil cylinder is provided at one end of the push block close to the outer side of the mold, a piston rod is provided on the oil cylinder, and the piston rod is fixedly connected to the push block.

[0006] In this scheme, after the fixed mold plate and the movable mold plate are molded together, the push block is clamped inside. Since the molding cavity is formed by the molding part on the push block, the connecting surface on the fixed mold plate and the movable mold plate, the cover plate product after cooling and molding will form a shape corresponding to the above-mentioned chamber structure. One side of the cover plate will be wrapped on the outside of the molding part. After the mold is opened, the push plate is pushed to move the straight push rod upward and eject the entire push block from the movable mold plate. Since one side of the cover plate is wrapped on the outside of the molding part, the other side of the cover plate will be detached from the molding surface of the movable mold plate during the upward movement of the push block. After the push block is ejected, the control cylinder extends the piston The piston drives the fixed top block to be ejected from the forming part, thereby completely demoulding the cover plate from the forming part, and the production personnel then clamp the demoulded cover plate out; through the above method, one end of the cover plate is wrapped around the outside of the forming part, and a circle of annular side wall will be formed on the cover plate. The cover plate can be inserted into the tail frame of the electric vehicle through the side wall structure, replacing the upper and lower cover plate split structure in the prior art, improving the installation efficiency, and the cover plate can be produced and demoulded through the forming structure and demoulding mechanism inside the mold, which solves the problem of requiring two molds for separate production in the prior art and reduces the production cost.

[0007] In the injection mold of the rear clothes hanger cover of the electric vehicle, the cover includes an upper plane and a lower annular wall. The upper plane is provided with a plurality of slots. The lower annular wall is provided at one end of the upper plane. An inner concave portion is provided at one end of the lower annular wall near the middle of the upper plane. The upper plane is formed at the connection surface of the fixed mold plate and the movable mold plate, and the lower annular wall is formed on the outer side wall of the molding part. The cover structure composed of the upper plane and the lower annular wall can be directly inserted into the rear rack of the electric vehicle, and the slots are used to connect other components installed on the cover.

[0008] In the injection mold of the rear clothes hanger cover of the electric vehicle, the top block is composed of an upper inclined top and a lower inclined top, and the upper inclined top is provided with a first abutment portion and a second abutment portion. The upper inclined top and the lower inclined top are respectively arranged at the upper and lower ends of the top block, the upper inclined top extends from the upper end of the molding portion, and the lower inclined top extends from the lower end of the molding portion to demould the cover.

[0009] In the injection mold of the rear clothes hanger cover of the electric vehicle, the first abutment portion abuts against one end of the lower annular wall, the second abutment portion abuts against the inner concave portion, and the lower inclined top abuts against one end of the upper plane. During the ejection of the ejection block, the cover is ejected simultaneously through three parts of the ejection block, so that the force on the cover is more uniform, and the cover product is prevented from being squeezed and deformed during the ejection process.

[0010] In the injection mold of the rear hanger cover of the electric vehicle, a sleeve is provided on the outer wall of the straight push rod, and the sleeve is fixedly connected to the inner wall of the movable plate. The sleeve can guide the straight push rod and prevent the straight push rod from rubbing against the movable plate.

[0011] In the injection mold of the rear hanger cover of the electric vehicle, a feed port is provided on the top plate, a feed flow channel is provided at the bottom of the feed port, the feed flow channel is connected to a nozzle provided inside the fixed mold plate, and the bottom of the nozzle is connected to the molding cavity. The plastic melt heated to a molten state is injected into the feed flow channel from the feed port, and the melt is squeezed into the molding cavity through the nozzle connected at the bottom.

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

[0013] 1. In this solution, the upper plane is formed at the connecting surface of the fixed template and the movable template, and the lower annular wall is formed on the outer wall of the forming portion. The cover plate structure composed of the upper plane and the lower annular wall can be directly inserted into the tail frame of the electric vehicle, replacing the upper and lower cover plate split structure in the prior art, thereby improving the installation efficiency.

[0014] 2. In this solution, the cover plate can be produced and demoulded through the molding structure and demoulding mechanism inside the mold, which solves the problem of requiring two molds for separate production in the prior art and reduces production costs.

[0015] 3. In this scheme, the outer rotating handle is driven to rotate by external force, which can drive the internal rotating shaft to rotate inside the support frame. The rotating shaft drives the fixed driving gear to rotate, and the driving gear drives the meshing driven gear to rotate, so that the vertical shafts on both sides rotate, and the connecting parts move up along the threads of the vertical shafts, thereby driving the upper push plate to move up, and the upper push plate drives the fixed push rod to extend upward to push the formed candle out of the forming tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the front view and half section structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the ejection state of the ejection block in the push block of the utility model;

[0019] Figure 4 It is a schematic diagram of the cover structure of the utility model.

[0020] In the figure, 1, top plate; 1a, feed port; 1b, feed flow channel; 1c, nozzle; 2, fixed template; 3, movable template; 4, foot plate; 4a, push plate; 4b, straight push rod; 4c, sleeve; 5, bottom plate; 6, push block; 6a, forming part; 7, top block; 7a, upper inclined top; 7a1, first abutment; 7a2, second abutment; 7b, lower inclined top; 8, oil cylinder; 8a, piston rod; 9, cover plate; 9a, upper plane; 9a1, slot; 9b, lower annular wall; 9b1, inner concave part; 10, forming cavity. DETAILED DESCRIPTION

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

[0022] Example

[0023] like Figure 1 As shown, the injection mold of the rear clothes hanger cover 9 of the electric vehicle includes a top plate 1, a fixed mold plate 2, a movable mold plate 3, a foot plate 4 and a bottom plate 5 arranged in sequence, the top plate 1 is fixedly connected to the fixed mold plate 2, the fixed mold plate 2 is slidably connected to the movable mold plate 3, the movable mold plate 3 is fixedly connected to the foot plate 4, the foot plate 4 is fixedly connected to the bottom plate 5, and a push plate 4a with a slidable connection is provided on the inner side of the foot plate 4.

[0024] like Figure 2 Combination Figure 3 As shown, a slidingly connected push block 6 is provided inside the fixed mold plate 2 and the movable mold plate 3, and a circular arc-shaped forming portion 6a is provided on the side of the push block 6 close to the center of the mold, and a slidingly connected top block 7 is provided inside the push block 6. A fixedly connected oil cylinder 8 is provided on the side of the push block 6 close to the outside of the mold, and a piston rod 8a is provided at one end of the oil cylinder 8, and the piston rod 8a is fixedly connected to the top block 7. The top block 7 consists of an upper inclined top 7a and a lower inclined top 7b. The upper inclined top 7a is provided with a first abutting portion 7a1 and a second abutting portion 7a2. The upper inclined top 7a Extending from the upper side of the forming portion 6a, the lower inclined top 7b extends from the lower side of the forming portion 6a, the outer side wall of the forming portion 6a, the connecting surface of the fixed template 2 and the movable template 3 together enclose a forming cavity 10, a feed port 1a is provided on the top plate 1, a feed channel 1b is provided at the bottom of the feed port 1a, the feed channel 1b is connected to a nozzle 1c provided inside the fixed template 2, the bottom of the nozzle 1c is connected to the forming cavity 10, a slidingly connected sleeve 4c is provided on the outer side wall of the straight push rod 4b, and the sleeve 4c is fixedly connected to the inner wall of the movable template 3.

[0025] like Figure 3 Combination Figure 4 As shown, a cooling-molded cover plate 9 is provided in the molding cavity 10, and the cover plate 9 includes an upper plane 9a and a lower annular wall 9b, the upper plane 9a is provided with a plurality of slots 9a1, the lower annular wall 9b is provided at one end of the upper plane 9a, an inner recess 9b1 is provided at one end of the lower annular wall 9b close to the middle of the upper plane 9a, the inner recess 9b1 and the upper plane 9a directly form an opening structure, the first abutting portion 7a1 abuts against one end of the lower annular wall 9b, the second abutting portion 7a2 abuts against the inner recess 9b1, and the lower inclined top 7b abuts against one end of the upper plane 9a.

[0026] The working principle of this scheme is as follows: Figure 1-4 As shown, the plastic melt heated to a molten state is injected into the feed flow channel 1b from the feed port 1a, and the melt is squeezed into the molding cavity 10 through the nozzle 1c connected at the bottom. After the plastic melt fills the molding cavity 10 and cools and forms, the movable mold plate 3 is moved by the mold opening device, and the molded cover plate 9 is attached to the movable mold plate 3 and separated from the fixed mold plate 2, and then the push plate 4a is pushed upward to move the fixed straight ejector rod 4b upward and eject the entire push block 6 from the movable mold plate 3. Since the lower annular wall 9b of the cover plate 9 is wrapped around the outer side of the molding portion 6a, the upper plane 9a of the cover plate 9 will be separated from the movable mold plate 3 during the upward movement of the push block 6. After the push block 6 is ejected, the oil cylinder 8 is controlled to extend the piston rod 8a, and the piston drives the fixed ejector block 7 to be ejected from the molding portion 6a, thereby completely demolding the cover plate 9 from the molding portion 6a, and the production personnel then clamp the demolded cover plate 9 out.

[0027] 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.

[0028] Although this article uses more terms such as 1, top plate; 1a, feed port; 1b, feed flow channel; 1c, nozzle; 2, fixed template; 3, movable template; 4, foot plate; 4a, push plate; 4b, straight push rod; 4c, sleeve; 5, bottom plate; 6, push block; 6a, molding part; 7, top block; 7a, upper inclined top; 7a1, first abutment; 7a2, second abutment; 7b, lower inclined top; 8, oil cylinder; 8a, piston rod; 9, cover plate; 9a, upper plane; 9a1, slot; 9b, lower annular wall; 9b1, inner concave; 10, molding cavity, etc., it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. An injection mold for a rear clothes hanger cover of an electric vehicle, comprising a top plate (1), a fixed plate (2), a movable plate (3), a foot plate (4) and a bottom plate (5) arranged in sequence, wherein a reciprocating push plate (4a) is provided on the inner side of the foot plate (4), and a straight push rod (4b) is fixedly connected to the push plate (4a), characterized in that: A reciprocating push block (6) is provided between the fixed mold plate (2) and the movable mold plate (3); one end of the straight push rod (4b) passes through the movable mold plate (3) and is fixedly connected to the push block (6); a molding portion (6a) is provided at one end of the push block (6) close to the inner side of the mold; the outer side wall of the molding portion (6a) and the connecting surface of the fixed mold plate (2) and the movable mold plate (3) together enclose a molding cavity (10); an injection molded cover plate (9) is provided inside the molding cavity (10); a push block (7) that can extend from the molding portion (6a) is provided inside the push block (6); a fixedly connected oil cylinder (8) is provided at one end of the push block (6) close to the outer side of the mold; a piston rod (8a) is provided on the oil cylinder (8); and the piston rod (8a) is fixedly connected to the push block (7).

2. The injection mold for the rear clothes hanger cover of an electric vehicle according to claim 1, characterized in that: The cover plate (9) comprises an upper plane (9a) and a lower annular wall (9b); the upper plane (9a) is provided with a plurality of slots (9a1); the lower annular wall (9b) is arranged at one end of the upper plane (9a); and an inner recess (9b1) is provided at one end of the lower annular wall (9b) close to the middle of the upper plane (9a).

3. The injection mold for the rear clothes hanger cover of an electric vehicle according to claim 2, characterized in that: The top block (7) is composed of an upper inclined top (7a) and a lower inclined top (7b), and the upper inclined top (7a) is provided with a first abutment portion (7a1) and a second abutment portion (7a2).

4. The injection mold for the rear clothes hanger cover of an electric vehicle according to claim 3, characterized in that: The first abutting portion (7a1) abuts against one end of the lower annular wall (9b), the second abutting portion (7a2) abuts against the inner recess (9b1), and the lower inclined top (7b) abuts against one end of the upper plane (9a).

5. The injection mold for the rear clothes hanger cover of an electric vehicle according to claim 1, characterized in that: A sleeve (4c) which is slidably connected is provided on the outer side wall of the straight push rod (4b), and the sleeve (4c) is fixedly connected to the inner wall of the movable template (3).

6. The injection mold for the rear clothes hanger cover of an electric vehicle according to claim 1, characterized in that: The top plate (1) is provided with a feed port (1a), the bottom of the feed port (1a) is provided with a feed channel (1b), the feed channel (1b) is connected to a nozzle (1c) provided inside the fixed mold plate (2), and the bottom of the nozzle (1c) is connected to the molding cavity (10).

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