Intra-mold cutting mechanism for injection mold of plastic part of electric vehicle

Abstract

The utility model provides an electric vehicle plastic part injection mold in-mold cutting mechanism which comprises an outer frame, a movable mold is movably arranged in the outer frame, two cutting frames are arranged at the side position of one end of the outer frame, and transverse cutting knives are arranged at the tops and the bottoms in the cutting frames; the movable mold capable of adjusting the position in a sliding mode is arranged in the outer frame, during machining, the movable mold is matched with the front mold and the rear mold, after injection molding materials are cooled, the front mold and the rear mold move away towards the two sides, and structures at the two ends of an injection molding part are exposed; in the moving process of the moving die, redundant miscellaneous edges in the transverse position can be cut off through a transverse cutting knife, and after the moving die completely moves to the two cutting frames, a pull rod can slide to drive two displacement sliding blocks to slide towards the lower portion. And then the two vertical cutting knives are used for treating flashes on the two sides of the vertical position of the injection molding part.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molds and relates to an in-mold cutting mechanism of an injection mold for plastic parts of electric vehicles. Background Art

[0002] As a green means of transportation, electric vehicles are becoming more and more popular among people. Due to environmental protection requirements and the development of new materials and new technologies, electric vehicles have entered a period of rapid development. Existing electric vehicle headlights usually include lampshades, lamp holders and reflective bowls. These components are processed through injection molds.

[0003] After injection molding, the injection mold also needs to cut the flash at the connection between the two molds to remove excess flash. When the existing mold performs the above operation, the flash is cut off by special equipment after the mold is cut. In this way, the processing efficiency is reduced and needs to be improved. Summary of the invention

[0004] The purpose of the utility model is to provide an in-mold cutting mechanism for an injection mold of an electric vehicle plastic part to solve the problems raised in the above-mentioned background technology.

[0005] The purpose of the utility model can be achieved through the following technical solutions: an in-mold cutting mechanism of an injection mold for electric vehicle plastic parts, comprising an outer frame, a movable mold, a front mold and a rear mold, wherein a movable mold is movably arranged inside the outer frame, and a front mold and a rear mold are respectively arranged on both sides of the movable mold, and two cutting frames are arranged at the side positions of one end of the outer frame, and transverse cutting knives are arranged at the top and bottom of the cutting frame, and a vertical slide groove is opened on the outer side of the cutting frame, and a displacement slider is slidably arranged inside the vertical slide groove.

[0006] In the above-mentioned in-mold cutting mechanism of the electric vehicle plastic injection mold, the internal movable sleeve of the displacement slider is provided with a telescopic rod body, the inner end of the telescopic rod body is provided with a vertical cutting knife, and the outer end of the telescopic rod body is connected to a pull rod.

[0007] In the above-mentioned in-mold cutting mechanism of the injection mold for electric vehicle plastic parts, outer support arms are provided on both sides of the end of the outer frame, and the front mold and the rear mold are movably arranged inside the two outer support arms respectively.

[0008] In the above-mentioned in-mold cutting mechanism of the electric vehicle plastic part injection mold, two guide rods are provided on the back side of the front mold and the back side of the rear mold, and one end of the guide rod is slidably sleeved with the outer support arm.

[0009] In the above-mentioned in-mold cutting mechanism of the injection mold for electric vehicle plastic parts, a pushing cylinder is arranged at the middle position of the outer support arm, and feed ports are arranged at the corners of the front mold and the corners of the rear mold.

[0010] In the above-mentioned in-mold cutting mechanism of the electric vehicle plastic part injection mold, a waste box is arranged at the bottom of the outer frame, a discharge port is opened at the bottom of the outer frame, and the discharge port is communicated with the interior of the waste box.

[0011] Compared with the prior art, the advantages of the in-mold cutting mechanism of the electric vehicle plastic injection mold of the utility model are:

[0012] The present application sets a movable mold which can slide and adjust its position inside the outer frame. During processing, the movable mold cooperates with the front mold and the rear mold to form a complete mold cavity, and then the injection plastic is injected into the mold cavity through the feed port. After the injection plastic is cooled, the front mold and the rear mold are moved away to both sides to expose the two end structures of the injection molded part. When the flash needs to be cut, the movable mold inside the outer frame is pushed to make the movable mold approach the two cutting frames. During the movement of the movable mold, the redundant miscellaneous edges in the horizontal position can be cut off by the horizontal cutting knife. When the movable mold is completely moved to the two cutting frames, the pull rod can be slid to drive the two displacement sliders to slide toward the bottom, and then the flash on both sides of the vertical position of the injection molded part can be processed by two vertical cutting knives. After the processing is completed, the material can be directly unloaded, and the processing is simple and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a structural schematic diagram of an in-mold cutting mechanism of an injection mold for electric vehicle plastic parts.

[0014] Figure 2 The utility model is a schematic diagram of the movable mold structure of the in-mold cutting mechanism of the injection mold for electric vehicle plastic parts.

[0015] Figure 3 The utility model is a schematic diagram of the structure of a cutting frame of an in-mold cutting mechanism of an injection mold for electric vehicle plastic parts.

[0016] Figure 4 The utility model is a schematic diagram of the structure of the outer support arm of the in-mold cutting mechanism of the injection mold for the electric vehicle plastic part.

[0017] In the figure, 1. outer frame; 2. movable mold; 3. front mold; 4. rear mold; 5. cutting frame; 6. discharge port; 7. waste box; 8. horizontal cutting knife; 9. vertical slide; 10. vertical cutting knife; 11. telescopic rod; 12. pull rod; 13. displacement slider; 14. outer support arm; 15. feed port; 16. guide rod; 17. push cylinder. DETAILED DESCRIPTION

[0018] 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.

[0019] The in-mold cutting mechanism of the injection mold for electric vehicle plastic parts includes an outer frame 1, a movable mold 2, a front mold 3 and a rear mold 4. The movable mold 2 is movably arranged inside the outer frame 1, and the front mold 3 and the rear mold 4 are respectively arranged on both sides of the movable mold 2. Two cutting frames 5 are arranged on the side positions of one end of the outer frame 1, and transverse cutting knives 8 are arranged on the top and bottom of the cutting frame 5. A vertical slide groove 9 is opened on the outer side of the cutting frame 5, and a displacement slider 13 is slidably arranged inside the vertical slide groove 9.

[0020] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the utility model is an in-mold cutting mechanism of an injection mold for plastic parts of an electric vehicle. Specifically, the internal movable sleeve of the displacement slider 13 is provided with a telescopic rod body 11, the inner end of the telescopic rod body 11 is provided with a vertical cutting knife 10, and the outer end of the telescopic rod body 11 is connected to a pull rod 12. The transverse cutting knife 8 and the vertical cutting knife 10 provided in the present application are both fine steel knife head structures, and the transverse cutting knife 8 and the vertical cutting knife 10 are respectively provided with two groups.

[0021] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the utility model is an in-mold cutting mechanism of an injection mold for electric vehicle plastic parts. Specifically, outer support arms 14 are provided on both sides of the end of the outer frame 1, and the front mold 3 and the rear mold 4 are movably provided inside the two outer support arms 14 respectively.

[0022] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the utility model is an in-mold cutting mechanism of an injection mold for plastic parts of an electric vehicle. Specifically, two guide rods 16 are provided on the back side of the front mold 3 and the back side of the rear mold 4, and one end of the guide rod 16 is slidably connected to the outer support arm 14. The guide rod 16 provides support when the front mold 3 and the rear mold 4 move. The outer support arm 14 of the present application is a plastic arm plate structure.

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the utility model has an in-mold cutting mechanism for an injection mold for plastic parts of an electric vehicle. Specifically, a pushing cylinder 17 is provided at the middle position of the outer support arm 14, and feed ports 15 are provided at the corners of the front mold 3 and the corners of the rear mold 4. During injection molding, material is fed into the mold cavity through the feed port 15, and the pushing cylinder 17 of the present application is a traditional disclosed electric cylinder structure, which mainly pushes the front mold 3 and the rear mold 4 to move.

[0024] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the utility model has an in-mold cutting mechanism for an injection mold for plastic parts of an electric vehicle. Specifically, a waste box 7 is provided at the bottom of the outer frame 1, a discharge port 6 is provided at the bottom inside the outer frame 1, and the discharge port 6 is connected to the interior of the waste box 7. When cutting off the flash, the cut flash will enter the interior of the discharge port 6 and finally enter the interior of the waste box 7.

[0025] In the mold cutting mechanism of the injection mold for electric vehicle plastic parts of the present invention, during processing, the movable mold 2, the front mold 3 and the rear mold 4 are matched and merged together to form a complete internal mold cavity structure, and then the injection plastic is injected into the formed mold cavity through the feed port 15, so as to form injection molding. After the injection plastic is cooled, an injection molded part is formed, and the front mold 3 and the rear mold 4 are moved toward both sides. When the front mold 3 and the rear mold 4 of the present invention are moved, they can be pushed by the pushing cylinder 17. After the front mold 3 and the rear mold 4 are moved away, the two end structures of the injection molded part will be exposed, and the flash formed at the mold parting surface will also be exposed at the edge of the injection molded part. When the flash needs to be cut, the movable mold 2 inside the outer frame 1 is pushed so that the movable mold 2 moves toward the two sides. The cutting frame 5 approaches, and during the movement of the movable mold 2, the flash at the transverse position of the parting surface will contact the transverse cutting knife 8, and the redundant flash at the transverse position can be cut off by the transverse cutting knife 8. When the movable mold 2 is completely moved between the two cutting frames 5, the telescopic rod body 11 can be pushed inward, so that the vertical cutting knife 10 at one end of the telescopic rod body 11 moves inward, and the vertical cutting knife 10 approaches the flash at the parting surface, and then the pull rod 12 is pulled downward, driving the two displacement sliders 13 to slide downward, and then the flash on both sides of the vertical parting surface of the injection molded part is processed by the two vertical cutting knives 10. After the processing is completed, the injection molded part can be directly unloaded without the need for subsequent flash processing, and the processing is simple and efficient.

[0026] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The specific embodiments described in this article are only used to illustrate the spirit of the utility model. The technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar way, but they will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.

Claims

1. An in-mold cutting mechanism for an injection mold for electric vehicle plastic parts, comprising an outer frame (1), a movable mold (2), a front mold (3) and a rear mold (4), characterized in that: A movable mold (2) is movably arranged inside the outer frame (1), and a front mold (3) and a rear mold (4) are respectively arranged on both sides of the movable mold (2). Two cutting frames (5) are arranged at the side positions of one end of the outer frame (1), and transverse cutting knives (8) are arranged at the top and bottom of the cutting frames (5). A vertical sliding groove (9) is opened on the outer side of the cutting frame (5), and a displacement slider (13) is slidably arranged inside the vertical sliding groove (9).

2. The in-mold cutting mechanism of the electric vehicle plastic injection mold according to claim 1, characterized in that: The internal movable sleeve of the displacement slider (13) is provided with a telescopic rod body (11), the inner end of the telescopic rod body (11) is provided with a vertical cutting knife (10), and the outer end of the telescopic rod body (11) is connected to a pull rod (12).

3. The in-mold cutting mechanism of the electric vehicle plastic injection mold according to claim 1, characterized in that: External support arms (14) are provided on both sides of the end of the external frame (1), and the front mold (3) and the rear mold (4) are movably arranged inside the two external support arms (14) respectively.

4. The in-mold cutting mechanism of the electric vehicle plastic injection mold according to claim 3, characterized in that: Two guide rods (16) are provided on the back side of the front mold (3) and the back side of the rear mold (4), and one end of the guide rod (16) is slidably sleeved with the outer support arm (14).

5. The in-mold cutting mechanism of the electric vehicle plastic injection mold according to claim 4, characterized in that: A pushing cylinder (17) is arranged at the middle position of the outer supporting arm (14), and feed ports (15) are arranged at the corners of the front mold (3) and the corners of the rear mold (4).

6. The in-mold cutting mechanism of the electric vehicle plastic injection mold according to claim 1, characterized in that: A waste box (7) is provided at the bottom of the outer frame (1), a discharge port (6) is provided at the bottom of the outer frame (1), and the discharge port (6) is communicated with the interior of the waste box (7).

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