Lower die assembly of new energy electric control box

Abstract

The utility model discloses a new energy electric control box's lower mould subassembly, including fixed mould seat and be located fixed mould frame, all slidingly connected with left demoulding subassembly, right demoulding subassembly, front demoulding subassembly and rear demoulding subassembly in the four around of fixed mould seat still include two respectively symmetrical setting on front demoulding subassembly and rear demoulding subassembly's limit ejection mechanism, limit ejection mechanism includes oil pump and more than one top cover, two oil pumps correspond to set up on front demoulding subassembly, rear demoulding subassembly and move along with front demoulding subassembly, rear demoulding subassembly, the push rod of oil pump is equipped with a push plate, and the side away from oil pump of push plate is equipped with top cover, and all top cover another end inserts into lower fixed mould cavity, and realizes in the mold opening, and top cover moves to product direction, and with the protruding hole of product corresponding front and rear end abuts. The structure is through adding limit ejection mechanism on front and rear demoulding subassembly, realizes demoulding, and the protruding hole of product front and rear is held, avoids its demoulding and is pulled out by demoulding subassembly and deforms.

Description

Technical Field

[0001] This utility model relates to the technical field of molding dies, specifically to a lower mold assembly for a new energy power control box. Background Technology

[0002] In the field of automotive technology, many components, such as new energy electronic control boxes, water pump housings, motor housings, oil pump housings, fan clutches, engine covers, rocker arm housings, etc., are made using injection molds.

[0003] For example, the new energy electrical control box 1 (such as...) Figure 1 The structure shown has two protruding through holes 101 at both its front and rear ends. These protruding through holes 101 are formed by extrusion molding. During injection molding, the protruding through holes 101 are located in the front moving mold of the front demolding component and the rear moving mold of the rear demolding component of the lower mold assembly. Therefore, in the current new energy electric control box injection mold, it has been found that during the demolding process, because the protruding through holes 101 are located in the front and rear moving molds, they are easily pulled out when the front and rear moving molds move outward for demolding, which can lead to deformation. This requires subsequent reshaping, which undoubtedly increases the processing time and the risk of product scrap. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of this utility model is to provide a lower mold assembly for a new energy power control box to solve the problem mentioned in the background art that the injection mold of the existing new energy power control box is prone to deformation when demolding, as the protruding through hole is easily pulled out, which requires subsequent reshaping, undoubtedly increasing the processing time and the risk of product scrap.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lower mold assembly for a new energy power control box, including a fixed mold base and a fixed mold frame located within the fixed mold base. The fixed mold frame is provided with a lower fixed mold cavity. A left demolding assembly for molding the left side of the product, a right demolding assembly for molding the right side of the product, a front demolding assembly for molding the front of the product, and a rear demolding assembly for molding the rear of the product are slidably connected around the fixed mold base. It also includes two limiting ejection mechanisms symmetrically arranged on the front demolding assembly and the rear demolding assembly, respectively. The limiting ejection mechanism includes an oil pump and one or more top sleeves. The two oil pumps are correspondingly arranged on the front demolding assembly and the rear demolding assembly and move with the front demolding assembly and the rear demolding assembly. A push plate is provided on the push rod of the oil pump. The top sleeve is provided on the side of the push plate away from the oil pump. The other end of all the top sleeves is inserted into the lower fixed mold cavity, so that when the mold is opened, the top sleeve moves towards the product and abuts against the end face of the protruding through hole corresponding to the front and rear ends of the product.

[0006] Preferably, the front demolding assembly includes a first hydraulic cylinder, a front slider, and a front moving mold. The push rod of the first hydraulic cylinder is fixedly connected to one side of the front slider, and the other side of the front slider is connected to one end of the front moving mold. The rear demolding assembly includes a second hydraulic cylinder, a rear slider, and a rear moving mold. The push rod of the second hydraulic cylinder is fixedly connected to one side of the rear slider, and the other side of the rear slider is connected to one end of the rear moving mold. The front oil pump is fixed to the front end of the front slider, and the rear oil pump is fixed to the rear of the rear slider. One end of all the front top sleeves penetrates the front slider and the front moving mold, and one end of all the rear top sleeves penetrates the rear slider and the rear moving mold.

[0007] Preferably, the left demolding assembly includes a third hydraulic cylinder, a left slider, and a left moving mold. The third hydraulic cylinder is fixed to the left side of the fixed mold base via a third cylinder seat. The push rod of the third hydraulic cylinder is fixedly connected to one end of the left slider, and the other end of the left slider is fixedly connected to one end of the left moving mold.

[0008] Preferably, the right demolding assembly includes a fourth hydraulic cylinder, a right slider, and a right moving mold. The fourth hydraulic cylinder is fixed to the left side of the fixed mold base via a fourth cylinder seat. The push rod of the fourth hydraulic cylinder is fixedly connected to one end of the right slider, and the other end of the right slider is fixedly connected to one end of the right moving mold. An injection hole communicating with the interior of the lower fixed mold cavity is provided between the right slider and the right moving mold.

[0009] Preferably, in order to achieve the guiding function and avoid positional displacement during demolding, which would cause the product to be stretched and deformed, one or more guide slide rails are provided around the upper surface of the fixed mold base, and sliding grooves that are slidably connected to the corresponding guide slide rails are provided at the bottom of the front slide rail, right slide rail, left slide rail and rear slide rail.

[0010] Preferably, the first hydraulic cylinder is fixed to the front end of the fixed mold base by a first cylinder seat, and the second hydraulic cylinder is fixed to the rear end of the fixed mold base by a second cylinder seat.

[0011] Preferably, in order to quickly and accurately close the mold with the upper mold assembly, the fixed mold base is also provided with four guide grooves.

[0012] Compared with existing technologies, this structure features a limiting ejection mechanism on the front and rear demolding components. This limiting ejection mechanism consists of an oil pump and one or more ejector sleeves. During demolding, as the corresponding front and rear demolding components move outward, the oil pump is driven to operate, causing multiple ejector sleeves to eject and hold the corresponding protruding through holes on the front and rear of the injection-molded product in place. This prevents the product from being carried out as the front and rear demolding components move outward, thus avoiding deformation. There is no need to reshape the deformed structure later, further reducing processing time and the risk of product scrap. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of an existing water pump casing with a relatively deep depth; Figure 2 This is a schematic diagram of the overall structure of the lower mold assembly of a new energy power control box in Example 1; Figure 3 for Figure 2 Enlarged view of point A; Figure 4 This is a schematic diagram of the combined structure of the front slider, the front moving mold, and the limiting ejection mechanism. Figure 5 for Figure 4 A schematic diagram of the structure when the front moving module is separated from other components.

[0014] In the diagram: 1. New energy power control box; 101. Protruding through hole; 2. Fixed mold base; 3. Fixed mold frame; 4. Lower fixed mold cavity; 5. Left demolding assembly; 6. Right demolding assembly; 8. Front demolding assembly; 7. Rear demolding assembly; 9. Oil pump; 10. Top sleeve; 11. Push plate; 12. Injection hole; 13. Guide slide rail; 14. Sliding groove; 15. Guide groove; 501. Third oil cylinder; 502. Left slider; 503. Left moving mold; 504. Third cylinder seat; 601. Fourth oil cylinder; 602. Right slider; 603. Fourth cylinder seat; 604. Second oil cylinder; 701. Rear slider; 702. Rear moving mold; 703. Second cylinder seat; 704. First oil cylinder; 801. Front slider; 802. Front moving mold; 803. First cylinder seat; 804. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0016] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0017] Example 1 Please see Figures 2-5 As shown, and it should be noted that, for ease of viewing, Figure 2The limiting ejection mechanism on the rear demolding assembly 7 is not installed. Since the front demolding assembly 8 and the rear demolding assembly 7 have the same structure, the installation structure of the limiting ejection mechanism on the rear demolding assembly 7 can be referenced. Figure 4 , Figure 5 In this embodiment, a lower mold assembly for a new energy power control box is disclosed, including a fixed mold base 2 and a fixed mold frame 3 located within the fixed mold base 2. The fixed mold frame 3 is provided with a lower fixed mold cavity 4. In order to quickly and accurately close with the upper mold assembly, the fixed mold base 2 is also provided with four guide grooves 15. A left demolding assembly 5 for molding the left side of the product, a right demolding assembly 6 for molding the right side of the product, a front demolding assembly 8 for molding the front of the product, and a rear demolding assembly 7 for molding the rear of the product are slidably connected around the fixed mold base 2. It also includes two symmetrically arranged on the front demolding assembly 8. And the limiting ejection mechanism on the rear demolding assembly 7, the limiting ejection mechanism includes an oil pump 9 and one or more top sleeves 10. Two oil pumps 9 are respectively arranged on the front demolding assembly 8 and the rear demolding assembly 7 and move with the front demolding assembly 8 and the rear demolding assembly 7. A push plate 11 is provided on the push rod of the oil pump 9. The top sleeve 10 is provided on the side of the push plate 11 away from the oil pump 9. The other end of all the top sleeves 10 is inserted into the lower fixed mold cavity 4, so that when the mold is opened, the top sleeve 10 moves towards the product and abuts against the end face of the protruding through hole 101 at the front and rear ends of the product.

[0018] Preferably, since the front demolding assembly 8 and the rear demolding assembly 7 have the same structure, the mounting structure of the limiting ejection mechanism on the rear demolding assembly 7 can be referenced. Figure 4 , Figure 5The front demolding assembly 8 includes a first hydraulic cylinder 801, a front slider 802, and a front moving mold 803. The push rod of the first hydraulic cylinder 801 is fixedly connected to one side of the front slider 802, and the other side of the front slider 802 is connected to one end of the front moving mold 803. The rear demolding assembly 7 includes a second hydraulic cylinder 701, a rear slider 702, and a rear moving mold 703. The push rod of the second hydraulic cylinder 701 is fixedly connected to one side of the rear slider 702, and the other side of the rear slider 702 is connected to one end of the rear moving mold 703. The front oil pump 9 is fixed to the front end of the front slider 802, and the rear oil pump 9 is fixed to the rear of the rear slider 702. One end of all the front top sleeves 10 penetrates the front slider 802 and the front moving mold 803, and one end of all the rear top sleeves 10 penetrates the rear slider 702 and the rear moving mold 703. The first hydraulic cylinder 801 is fixed to the front end of the fixed mold base 2 through a first cylinder seat 804. The second hydraulic cylinder 701 is fixed to the rear end of the fixed mold base 2 via the second cylinder seat 704. The left demolding assembly 5 includes a third hydraulic cylinder 501, a left slider 502, and a left moving mold 503. The third hydraulic cylinder 501 is fixed to the left side of the fixed mold base 2 via the third cylinder seat 504. The push rod of the third hydraulic cylinder 501 is fixedly connected to one end of the left slider 502, and the other end of the left slider 502 is fixedly connected to one end of the left moving mold 503. The right demolding assembly 6 includes a fourth hydraulic cylinder 601, a right slider 602, and a right moving mold 603. The fourth hydraulic cylinder 601 is fixed to the left side of the fixed mold base 2 via the fourth cylinder seat 604. The push rod of the fourth hydraulic cylinder 601 is fixedly connected to one end of the right slider 602, and the other end of the right slider 602 is fixedly connected to one end of the right moving mold 603. A liquid injection hole 12 communicating with the interior of the lower fixed mold cavity 4 is provided between the right slider 602 and the right moving mold 603.

[0019] Preferably, in order to achieve the guiding function and avoid positional displacement during demolding, which would cause the product to be stretched and deformed, one or more guide slide rails 13 are provided around the upper surface of the fixed mold base 2, and sliding grooves 14 that are slidably connected to the corresponding guide slide rails 13 are provided at the bottom of the front slide rail 802, right slide rail 602, left slide rail 502 and rear slide rail 702.

[0020] During operation, when the upper mold assembly and the lower mold assembly of this structure are closed, the injection nozzle of the upper mold assembly aligns with the injection hole 12 during the mold closing process. This ensures that the injection liquid flows from the injection nozzle along the injection hole 12 into the bottom of the lower fixed mold cavity 3 during mold closing, thereby forming the shape of the new energy electric control box 1. Furthermore, due to the limiting ejection mechanism on the front demolding assembly 8 and the rear demolding assembly 7, which consists of an oil pump 9 and one or more ejector sleeves 10, during demolding, as the corresponding front demolding assembly 8 and the rear demolding assembly 7 move outward, the oil pump 9 is driven to work, driving multiple ejector sleeves 10 to eject and hold the corresponding protruding through holes 101 at the front and rear of the injection-molded finished product. This prevents the product from being carried out as the front demolding assembly 8 and the rear demolding assembly 7 move outward, thus avoiding deformation. There is no need to reshape the deformed structure later, further reducing processing time and the risk of product scrap.

[0021] It should be noted in this application that the structure of the upper mold assembly is conventional technology in this field and therefore will not be described in detail.

[0022] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A lower mold assembly for a new energy power control box, comprising a fixed mold base (2) and a fixed mold frame (3) located within the fixed mold base (2), wherein a lower fixed mold cavity (4) is provided on the fixed mold frame (3), and a left demolding assembly (5) for molding the left side of the product, a right demolding assembly (6) for molding the right side of the product, a front demolding assembly (8) for molding the front of the product, and a rear demolding assembly (7) for molding the rear of the product are slidably connected around the fixed mold base (2), characterized in that: It also includes two limiting ejection mechanisms symmetrically arranged on the front demolding assembly (8) and the rear demolding assembly (7), respectively. The limiting ejection mechanism includes an oil pump (9) and one or more top sleeves (10). The two oil pumps (9) are respectively arranged on the front demolding assembly (8) and the rear demolding assembly (7) and move with the front demolding assembly (8) and the rear demolding assembly (7). A push plate (11) is provided on the push rod of the oil pump (9). The top sleeve (10) is provided on the side of the push plate (11) away from the oil pump (9). The other end of all the top sleeves (10) is inserted into the lower fixed mold cavity (4) and realizes that when the mold is opened, the top sleeve (10) moves towards the product and abuts against the end face of the protruding through hole (101) at the front and rear ends of the product.

2. The lower mold assembly of the new energy power control box according to claim 1, characterized in that: The front demolding assembly (8) includes a first hydraulic cylinder (801), a front slider (802), and a front moving mold (803). The push rod of the first hydraulic cylinder (801) is fixedly connected to one side of the front slider (802), and the other side of the front slider (802) is connected to one end of the front moving mold (803). The rear demolding assembly (7) includes a second hydraulic cylinder (701), a rear slider (702), and a rear moving mold (703). The push rod of the second hydraulic cylinder (701) is fixedly connected to one side of the front slider (802), and the other side of the front slider (802) is connected to one end of the front moving mold (803). One side of the rear slider (702) is fixedly connected, and the other side of the rear slider (702) is connected to one end of the rear moving mold (703). The front oil pump (9) is fixed at the front end of the front slider (802), and the rear oil pump (9) is fixed at the rear of the rear slider (702). One end of all the top sleeves (10) at the front end passes through the front slider (802) and the front moving mold (803), and one end of all the top sleeves (10) at the rear end passes through the rear slider (702) and the rear moving mold (703).

3. The lower mold assembly of the new energy power control box according to claim 2, characterized in that: The left demolding assembly (5) includes a third hydraulic cylinder (501), a left slider (502), and a left moving mold (503). The third hydraulic cylinder (501) is fixed to the left side of the fixed mold base (2) by a third cylinder seat (504). The push rod of the third hydraulic cylinder (501) is fixedly connected to one end of the left slider (502), and the other end of the left slider (502) is fixedly connected to one end of the left moving mold (503).

4. The lower mold assembly of the new energy power control box according to claim 3, characterized in that: The right demolding assembly (6) includes a fourth hydraulic cylinder (601), a right slider (602), and a right moving mold (603). The fourth hydraulic cylinder (601) is fixed to the left side of the fixed mold base (2) by a fourth cylinder seat (604). The push rod of the fourth hydraulic cylinder (601) is fixedly connected to one end of the right slider (602), and the other end of the right slider (602) is fixedly connected to one end of the right moving mold (603). A liquid injection hole (12) communicating with the interior of the lower fixed mold cavity (4) is provided between the right slider (602) and the right moving mold (603).

5. The lower mold assembly of the new energy power control box according to claim 4, characterized in that: One or more guide rails (13) are provided around the upper surface of the fixed mold base (2). Sliding grooves (14) that are slidably connected to the corresponding guide rails (13) are provided at the bottom of the front slider (802), right slider (602), left slider (502) and rear slider (702).

6. The lower mold assembly of the new energy power control box according to claim 2, characterized in that: The first oil cylinder (801) is fixed to the front end of the fixed mold base (2) by the first cylinder seat (804), and the second oil cylinder (701) is fixed to the rear end of the fixed mold base (2) by the second cylinder seat (704).

7. The lower mold assembly of the new energy power control box according to claim 4, characterized in that: The fixed mold base (2) is also provided with four guide grooves (15).

Images