A molding die for a sunroof control panel

Abstract

This utility model relates to the field of plastic mold technology, and in particular to a molding mold for a sunroof control panel. It includes front and rear mold cores, with a cavity on the rear mold core. A first insert is installed within the cavity, serving as a structural surface for complex product molding. The structural surface of the rear mold core corresponds to the product structural surface of the front mold core, and a first mating hole is provided through the rear mold core. An inclined ejector is arranged within the first mating hole, and the inner surface of the upper end of the inclined ejector forms the inner wall of the molding cavity. Second mating holes are provided at both ends of the first insert, and flat ejector pins are arranged within the second mating holes, with the outer surface of the upper end of the flat ejector pins forming the structural surface of the first insert. By adding an insert at a deep rib position on the rear mold core, during processing, the rear mold core is first machined into a through hole using wire cutting, and then the plastic area is machined using partial electrical discharge machining, allowing for efficient chip removal. Furthermore, small inserts are carefully designed and manufactured to solve the problem of difficult insert machining. The inserts are then disassembled a second time to maximize processing efficiency, thereby shortening the production cycle and reducing costs.

Description

Technical Field

[0001] This utility model relates to the field of plastic mold technology, and in particular to a molding mold for a sunroof control panel. Background Technology

[0002] Figure 1 , Figure 2 , Figure 3 and Figure 4 The image shows a car sunroof control panel, which is typically manufactured using injection molding. The back of this product has several difficult-to-machine ribs, the deepest of which is 28 mm, with a thickness of 1.2 to 1.5 mm. These include rib 1, rib 2, and rib 3.

[0003] The aforementioned product structure increases the difficulty of mold processing. The following challenges exist: 1. In areas with deep ridges on the mold core, the electrode processing time after machining the core is very long, resulting in significant electrode wear and difficulties in chip removal; 2. In areas with deep ridges, ejection is difficult, potentially damaging the product; 3. In areas with deep ridges, venting is difficult, leading to insufficient or no glue in the product.

[0004] Therefore, how to provide a sunroof control panel molding die with a simpler and more reasonable structural design, easier processing and manufacturing, a more reasonable product ejection design, better venting effect, and better product injection molding quality has become a technical problem to be solved by those skilled in the art. Utility Model Content

[0005] In view of the above-mentioned defects of the prior art, the technical problem to be solved by this utility model is how to provide a mold with a simpler and more reasonable structural design, which is more convenient to process and manufacture, has a more reasonable product ejection design, and can have better venting effect and better improve product injection quality.

[0006] To achieve the above objectives, this utility model provides a molding die for a sunroof control panel, including a front mold core and a rear mold core. The rear mold core has a molding part structure for molding the back structure of the workpiece. The invention is characterized in that: a vertically penetrating cavity hole is provided on the rear mold core corresponding to a first rib of the workpiece; a first insert is provided within the cavity hole, such that the upper end of the outer circumferential surface of the first insert and the upper end of the inner circumferential surface of the cavity hole form a ring-shaped rectangular cylindrical molding cavity for molding the first rib; a pair of vertically penetrating first mating holes are provided on the rear mold core corresponding to the front and rear side walls of the cavity hole; a slanted ejector is arranged within the first mating hole, such that the inner side of the upper end of the slanted ejector forms the inner circumferential wall of the cavity hole; a pair of vertically penetrating first insertion mating holes and second insertion mating holes are provided on the right end of the first insert and the left side wall of the cavity hole, and a first flat ejector pin and a second flat ejector pin are respectively arranged thereon, the upper ends of the first flat ejector pin and the second flat ejector pin forming the inner and outer side walls of the cavity.

[0007] In this structure, a vertically penetrating cavity hole is designed on the rear mold core, and a first insert is installed there. A cavity is formed between the upper end of the outer circumferential surface of the first insert and the upper end of the inner circumferential surface of the cavity hole, which is used to form the first rib. Furthermore, a pair of vertically penetrating first mating holes are designed on the front and rear side walls of the cavity hole, each with an inclined ejector. A first insertion mating hole and a second insertion mating hole are designed on the right end of the first insert and the left side wall of the cavity hole, respectively. A first flat ejector pin and a second flat ejector pin are also designed, so that the upper ends of the first and second flat ejector pins each form the inner and outer side walls of the cavity. This structure allows for efficient chip removal during machining. First, the rear mold core is machined into a through hole using wire EDM, and then the glue area is machined using partial electrical discharge machining.

[0008] As an optimization, a first exhaust groove arranged horizontally and a second exhaust groove arranged vertically are provided on the surface of the first insert, and the first exhaust groove and the second exhaust groove are arranged in a cross shape; and a first through hole is provided at the intersection of the first exhaust groove and the second exhaust groove on the first insert, and a connecting groove is provided on the lower end face of the first insert, with one end of the connecting groove connected to the first through hole and the other end of the connecting groove penetrating one side of the first insert.

[0009] In this way, a first venting groove and a second venting groove are provided in a cross shape on the surface of the first insert; a connecting groove is provided on the bottom surface of the first insert, and is connected to the first venting groove and the second venting groove through a first through hole; so that in places where there are deep ribs in the product, venting grooves are added on the top and bottom of the rear mold core, which will not form a vacuum and ensure smooth filling of the glue.

[0010] As an optimization, a first push rod hole is provided on the rear mold core on the side corresponding to the first rib position, and a first push rod is provided in conjunction with it.

[0011] In this way, by setting the first push rod, it is more convenient to demold the first bone position.

[0012] As an optimization, a cavity is provided through the second rib on the rear mold core and corresponding to the workpiece, and a second insert is provided in the cavity, such that the second insert and the cavity of the rear mold core together form a second rib forming cavity and are used to form the second rib; and a second rib forming groove is provided at the upper end of the second insert and is used to form the second rib.

[0013] In this way, by setting a second insert, the mold processing can be made more convenient.

[0014] As an optimization, the second insert includes an insert body; it also includes a pair of side inserts that are fitted to one side of the insert body, the inner side of the upper end of the insert body and the inner side of the upper end of the side insert each have a first molding groove and a second molding groove, and the first molding groove and the second molding groove are connected to form a second rib molding groove for molding the second rib; and an ejector pin hole is provided on the side insert, and an ejector pin is arranged in the ejector pin hole; a fourth flat ejector pin is also provided on each side of the insert body, the lower end of the fourth flat ejector pin passing through the rear mold core and extending downward.

[0015] This rational secondary disassembly of the second insert ensures maximum processing optimization and facilitates manufacturing. It also makes chip removal on the second insert easier. Furthermore, the ejector pins further enhance demolding efficiency.

[0016] As an optimization, a cavity is provided through the third rib on the rear mold core and corresponding to the workpiece. A third insert is provided in the cavity, and the two L-shaped sides of the third insert together with the cavity form the third rib forming cavity and are used to form the third rib.

[0017] This makes it easier to process the deep rib positions on the mold.

[0018] As an optimization, a second through hole is provided on the third insert, and a third flat pin is provided in the second through hole. The upper end of the third flat pin and the upper end face of the third insert are used to form the third bone position.

[0019] In this way, in the deep rib area of ​​the mold, in addition to the inclined ejector, a third flat Z-shaped ejector pin is added to both sides, with half of the force applied to the surface and the other half applied to the rib area for ejection; this makes demolding more convenient and better ensures the demolding quality of the product.

[0020] In summary, the above-mentioned structure features a simpler and more reasonable structural design, easier processing and manufacturing, a more reasonable product ejection design, better venting effect, and improved product injection molding quality. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of the sunroof control panel in a specific embodiment of this utility model.

[0022] Figure 2 yes Figure 1 A magnified view of position A in the diagram.

[0023] Figure 3 yes Figure 1 A magnified view of position B in the diagram.

[0024] Figure 4 yes Figure 1 A magnified view of position C in the diagram.

[0025] Figure 5 This is a schematic diagram of the molding die for the sunroof control panel in a specific embodiment of this utility model.

[0026] Figure 6 yes Figure 5 A schematic diagram of the structure of the rear mold core.

[0027] Figure 7 yes Figure 5 A schematic diagram of the structure of the middle and rear mold core.

[0028] Figure 8 yes Figure 7 A structural diagram omitting the workpiece.

[0029] Figure 9 yes Figure 6 A schematic diagram of the first insert part.

[0030] Figure 10 yes Figure 6 A schematic diagram of the second insert part.

[0031] Figure 11 yes Figure 6 A schematic diagram of the third inlay part. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments. It should be noted that in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific manner. Therefore, they should not be construed as limitations on the present invention. Terms such as "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] like Figures 1 to 11As shown, a molding die for a sunroof control panel includes a front mold core and a rear mold core 11. The rear mold core has a molding part structure for molding the back structure of the workpiece 12. A vertically penetrating cavity hole is provided on the rear mold core corresponding to the first rib of the workpiece. A first insert 13 is provided in the cavity hole, and a ring of rectangular tube-shaped molding cavity is formed between the upper end of the outer peripheral surface of the first insert and the upper end of the inner peripheral surface of the cavity hole for molding the first rib. A pair of vertically penetrating first mating holes are provided on the rear mold core corresponding to the front and rear side walls of the cavity hole. An inclined ejector 14 is arranged in the first mating hole, and the inner side of the upper end of the inclined ejector forms the inner peripheral wall of the cavity hole. A pair of vertically penetrating first insertion mating holes and second insertion mating holes are provided on the right end of the first insert and the left side wall of the cavity hole, and a first flat ejector pin 15 and a second flat ejector pin 16 are arranged in each pair. The upper ends of the first flat ejector pin and the second flat ejector pin form the inner and outer side walls of the cavity.

[0034] Specifically, the molding die for the sunroof control panel includes a front mold and a rear mold; the front mold includes a front mold core, and the rear mold includes a rear mold core.

[0035] In this structure, a vertically penetrating cavity hole is designed on the rear mold core, and a first insert is installed there. A cavity is formed between the upper end of the outer circumferential surface of the first insert and the upper end of the inner circumferential surface of the cavity hole, which is used to form the first rib. Furthermore, a pair of vertically penetrating first mating holes are designed on the front and rear side walls of the cavity hole, each with an inclined ejector. A first insertion mating hole and a second insertion mating hole are designed on the right end of the first insert and the left side wall of the cavity hole, respectively. A first flat ejector pin and a second flat ejector pin are also designed, so that the upper ends of the first and second flat ejector pins each form the inner and outer side walls of the cavity. This structure allows for efficient chip removal during machining. First, the rear mold core is machined into a through hole using wire EDM, and then the glue area is machined using partial electrical discharge machining.

[0036] In this specific embodiment, a first exhaust groove 17 arranged horizontally and a second exhaust groove 18 arranged vertically are respectively provided on the surface of the first insert, such that the first exhaust groove and the second exhaust groove are arranged in a cross shape; and a first through hole 19 is provided at the position where the first exhaust groove and the second exhaust groove intersect on the first insert, and a connecting groove is provided on the lower end face of the first insert, with one end of the connecting groove connected to the first through hole and the other end of the connecting groove penetrating one side of the first insert.

[0037] In this way, a first venting groove and a second venting groove are provided in a cross shape on the surface of the first insert; a connecting groove is provided on the bottom surface of the first insert, and is connected to the first venting groove and the second venting groove through a first through hole; so that in places where there are deep ribs in the product, venting grooves are added on the top and bottom of the rear mold core, which will not form a vacuum and ensure smooth filling of the glue.

[0038] In this specific embodiment, a first push rod hole is provided on the rear mold core on the side corresponding to the first bone position, and a first push rod 20 is provided in conjunction with it.

[0039] In this way, by setting the first push rod, it is more convenient to demold the first bone position.

[0040] In this specific embodiment, a cavity is provided through the second rib on the rear mold core and corresponding to the workpiece. A second insert 21 is provided in the cavity, such that the second insert and the cavity of the rear mold core together form a second rib forming cavity and are used to form the second rib. A second rib forming groove 22 is provided at the upper end of the second insert and is used to form the second rib.

[0041] In this way, by setting a second insert, the mold processing can be made more convenient.

[0042] In this specific embodiment, the second insert includes an insert body 23; it also includes a pair of side inserts 24 that are fitted to one side of the insert body. The inner side of the upper end of the insert body and the inner side of the upper end of the side insert each have a first molding groove 25 and a second molding groove 26, such that the first molding groove and the second molding groove are connected to form a second rib molding groove for molding the second rib; and an ejector pin hole is provided on the side insert, and an ejector pin 27 is arranged in the ejector pin hole; a fourth flat ejector pin 28 is also provided on both sides of the insert body, and the lower end of the fourth flat ejector pin passes through the rear mold core and extends downward.

[0043] This rational secondary disassembly of the second insert ensures maximum processing optimization and facilitates manufacturing. It also makes chip removal on the second insert easier. Furthermore, the ejector pins further enhance demolding efficiency.

[0044] In this specific embodiment, a cavity is provided through the third rib on the rear mold core and corresponding to the workpiece. A third insert 29 is provided in the cavity, and the two L-shaped sides of the third insert together with the cavity form the third rib forming cavity and are used to form the third rib.

[0045] This makes it easier to process the deep rib positions on the mold.

[0046] In this specific embodiment, a second through hole is provided vertically through the third insert, and a third flat pin 30 is provided in the second through hole. The upper end of the third flat pin and the upper end face of the third insert are used to form the third bone position.

[0047] In this way, in the deep rib area of ​​the mold, in addition to the inclined ejector, a third flat Z-shaped ejector pin is added to both sides, with half of the force applied to the surface and the other half applied to the rib area for ejection; this makes demolding more convenient and better ensures the demolding quality of the product.

[0048] In summary, the above-mentioned structure features a simpler and more reasonable structural design, easier processing and manufacturing, a more reasonable product ejection design, better venting effect, and improved product injection molding quality.

[0049] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A molding die for a sunroof control panel, comprising a front die core and a back die core, the back die core having a molding portion structure for molding a back surface structure of a workpiece; characterized in that; A vertically penetrating cavity hole is provided on the rear mold core corresponding to the first rib of the workpiece. A first insert is provided in the cavity hole, and a ring of rectangular cylindrical forming cavity is formed between the upper end of the outer peripheral surface of the first insert and the upper end of the inner peripheral surface of the cavity hole, which is used to form the first rib. A pair of vertically penetrating first mating holes are provided on the rear mold core corresponding to the front and rear side walls of the cavity hole. An inclined ejector is arranged in the first mating hole, and the inner side of the upper end of the inclined ejector forms the inner peripheral wall of the cavity hole. A pair of vertically penetrating first insertion mating holes and second insertion mating holes are provided on the right end of the first insert and the left side wall of the cavity hole, and a first flat ejector pin and a second flat ejector pin are arranged in each pair. The upper ends of the first flat ejector pin and the second flat ejector pin form the inner and outer side walls of the cavity.

2. A molding die for a sunroof control panel as defined in claim 1, characterized in that: A first vent groove arranged horizontally and a second vent groove arranged vertically are provided on the surface of the first insert, such that the first vent groove and the second vent groove are arranged in a cross shape; and a first through hole is provided at the intersection of the first vent groove and the second vent groove on the first insert. A connecting groove is provided on the lower end face of the first insert, and one end of the connecting groove is connected to the first through hole, and the other end of the connecting groove is provided through one side of the first insert.

3. A molding die for a sunroof control panel as defined in claim 1, characterized in that: A first push rod hole is provided on the rear mold core on the side corresponding to the first bone position, and a first push rod is provided in conjunction with it.

4. A molding die for a sunroof control panel as defined in claim 1, characterized in that: A cavity is provided through the rear mold core and corresponding to the second rib of the workpiece. A second insert is provided in the cavity, such that the second insert and the cavity of the rear mold core together form the second rib forming cavity and are used to form the second rib.

5. A molding die for a sunroof control panel as defined in claim 4, characterized in that: The second insert includes an insert body; it also includes a pair of side inserts that are fitted to one side of the insert body and are arranged in pairs, and the side inserts are provided with ejector pin holes and ejector pins are arranged in the ejector pin holes; a fourth flat ejector pin is also provided on each side of the insert body, and the lower end of the fourth flat ejector pin passes through the rear mold core and extends downward.

6. A molding die for a sunroof control panel as defined in claim 1, characterized in that: A cavity is provided through the third rib on the rear mold core and corresponding to the workpiece. A third insert is provided in the cavity, and the two L-shaped sides of the third insert together with the cavity form the third rib forming cavity and are used to form the third rib.

7. A molding die for a sunroof control panel as defined in claim 6, characterized in that: A second through hole is provided on the third insert, and a third flat pin is provided in the second through hole. The upper end of the third flat pin and the upper end face of the third insert are used to form the third bone position.

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