CN110053675B - Guide plate injection molding and guide plate injection mold - Google Patents

Abstract

The invention discloses a guide plate injection molding part and a guide plate injection mold, wherein the guide plate injection molding part comprises: the first injection molding part is corresponding to the mounting structure of the molded guide plate; and the second injection molding part is formed on the first injection molding part and comprises a substrate and a plurality of cutting structures which are sequentially arranged on the substrate at intervals, wherein the cutting structures are raised or sunken and are convexly arranged on the substrate, and the cutting structures are used for cutting to form matched ends of the guide plate and the opponent piece. The guide plate injection molding piece of the technical scheme of the invention has the advantages that the universality is high, guide plates matched with different opponents can be prepared, and the guide plates are tightly matched with the opponents.

Description

Deflector injection molding parts and deflector injection molds

Technical field

The invention relates to the technical field of injection molding, and in particular to a deflector injection molding part and a deflector injection mold.

Background technique

At present, most automobile companies use the same parts or parts with similar shapes for automobile plastic parts of the same platform models to meet the goals of cost saving and rapid development of new models, and to reduce the maintenance costs of subsequent vehicles.

Since the existing mold can only inject a certain part, the part can only be used with a certain product and cannot be adapted to other products. Even if the parts of the same part of multiple products are roughly similar in structure, different parts cannot be used interchangeably. Therefore, when preparing multiple approximate parts using existing manufacturing methods, multiple molds need to be designed correspondingly. However, the design and manufacturing costs of molds are high, resulting in high production and processing costs. A processing method is now proposed to reduce the production cost of parts. Specifically, a common mold is designed based on the sizes of multiple approximate target parts, and an initial part is prepared through the mold. The initial part can correspond to the size of all target parts. , and then perform different physical cuts on the initial part to obtain the corresponding target part.

However, the parts prepared by existing molds have poor versatility, so it is necessary to design a part structure that adapts to the above processing method to adapt to different products.

Contents of the invention

The main purpose of the present invention is to provide an injection molded part for a deflector, aiming to solve the technical problem of poor adaptability of the existing injection molded parts for the deflector.

In order to achieve the above objectives, the injection molded part of the deflector proposed by the present invention includes:

The first injection molding part corresponds to the installation structure of the molded baffle; and,

The second injection molding part is formed on the first injection molding part. The second injection molding part includes a base plate and a plurality of cutting structures spaced on the base plate in sequence. The cutting structures are raised or recessed to protrude from the base plate. On the substrate, the cutting structure is used for cutting to form a mating end of the guide plate for mating with a counterpart piece.

Optionally, the cutting structure includes a first cutting structure, and the first cutting structure is provided on an edge of the substrate on a side facing away from the first injection molding part.

Optionally, the first cutting structure extends in an arc shape from the base plate in a direction away from the first injection molding part.

Optionally, the first cutting structure is gradually thickened from an end side away from the substrate toward the substrate.

Optionally, the cutting structure further includes a second cutting structure, the second cutting structure is provided on a side of the first cutting structure close to the first injection molding part and extends in an arc shape.

optionally,

The second cutting structure has a larger curvature than the first cutting structure. Optionally, the base plate includes a first connection plate and a second connection plate, the first connection plate is connected between the first cutting structure and the second cutting structure, and the second connection plate is connected to Between the second cutting structure and the first injection molding part, and stacked with the first connecting plate.

Optionally, the cutting structure further includes a third cutting structure, which is disposed on a side of the second cutting structure close to the first injection molding part and protrudes from the base plate.

Optionally, the deflector injection molded part is an automobile deflector injection molded part, and/or the first injection molded part is made of hard rubber or soft rubber material, and/or the second injection molded part is made of Injection molding of hard or soft rubber materials.

The invention also proposes a guide plate injection mold to prepare a guide plate injection molded part. The guide plate injection molded part includes:

The first injection molding part corresponds to the installation structure of the molded baffle; and,

The second injection molding part is formed on the first injection molding part. The second injection molding part includes a base plate and a plurality of cutting structures spaced on the base plate in sequence. The cutting structures are raised or recessed to protrude from the base plate. On the substrate, the cutting structure is used for cutting to form a mating end of the guide plate for mating with a counterpart piece.

The deflector injection molded part of the technical solution of the present invention includes a first injection molding part and a second injection molding part. A plurality of cutting structures are arranged at intervals on the base plate of the second injection molding part, and the cutting structures are raised or recessed to protrude from the base plate. The cutting structure is used for cutting to form a mating end of the guide plate for mating with the counterpart piece. In this way, the extension direction of the mating end of the deflector that matches the counterpart is in the wrong direction with the base plate. When mating with the counterpart, the counterpart end of the deflector is prone to deformation, which is beneficial to achieving an interference fit between the deflector and the counterpart. ; Compared with existing deflectors, the deflector injection molded parts provided by this application have the advantages of being able to be cut to fit different products, having high adaptability, and closely matching with counterpart parts.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without exerting creative efforts.

Figure 1 is a schematic structural diagram of an embodiment of the baffle injection molding part and mold of the present invention;

Figure 2 is a cross-sectional view of the embodiment shown in Figure 1;

Figure 3 is a partial enlarged view of point A in Figure 2.

Explanation of reference numbers:

label name label name 100 First Injection Molding Department 200 Second injection molding department 210 cutting structure 211 first cutting structure 212 Second cutting structure 213 third cutting structure 213a first inclined section 231b second inclined section 213c connecting section 220 first connecting plate 230 Second connecting plate 240 substrate

The realization of the purpose, functional features and advantages of the present invention will be further described with reference to the embodiments and the accompanying drawings.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention.

It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), then the directional indications are only used to explain the position of a certain posture (as shown in the drawings). The relative positional relationship, movement conditions, etc. between the components under the display). If the specific posture changes, the directional indication will also change accordingly.

In addition, if there are descriptions involving “first”, “second”, etc. in the embodiments of the present invention, the descriptions of “first”, “second”, etc. are only for descriptive purposes and shall not be understood as indications or implications. Its relative importance or implicit indication of the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, the meaning of "and/or" appearing in the entire text is to include three parallel plans. Taking "A and/or B" as an example, it includes plan A, or plan B, or a plan that satisfies both A and B at the same time. In addition, the technical solutions in various embodiments can be combined with each other, but it must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that such a combination of technical solutions does not exist. , nor within the protection scope required by the present invention.

The invention proposes an injection molded part for a guide plate, which is used to be cut to obtain guide plates of different specifications.

In the embodiment of the present invention, as shown in FIG. 1 , the air deflector injection molded part includes a first injection molding part 100 and a second injection molding part 200 formed on the first injection molding part 100 . The first injection molding part 100 corresponds to the installation structure of the molded air guide plate, and the second injection molding part 200 includes a base plate 240 and a plurality of cutting structures 210 . A plurality of cutting structures 210 are arranged on the substrate 240 at intervals in sequence, and the cutting structures 210 are convexly or recessedly arranged on the substrate 240 . The cutting structure 210 is used for cutting to form a mating end of the guide plate for mating with the counterpart piece.

It can be understood that the function of the baffle is to guide the movement direction of the fluid (gaseous fluid or liquid fluid) to enhance the work of the product. Taking the air deflector of an air conditioner as an example, it is usually installed at the air outlet of the air conditioner to guide the air flow direction at the air outlet of the air conditioner to improve user experience. Taking the upper air deflector of a car as an example, it can cooperate with the front bumper of the car to seal and guide the air during the driving of the car, thereby reducing the noise and wind resistance during the driving of the car. It can be seen that the deflector is not a separate component in the product and needs to be used in conjunction with the product. Then, the first injection molded part 100 corresponding to the installation structure forming the air guide can be considered as the part corresponding to the structure of the final cut and formed target air guide that is fixedly matched/movable matched with the product. Since the installation structures of different baffles, such as studs, screw rods, threaded holes, etc., may change depending on the actual application, the specific structure of the first injection molding part 100 is not limited in this application. Specifically, the guide plate can be movably installed on the product, or can be immovably installed on the product. In this embodiment, the structures or components in the product that are used to match the deflector can be collectively referred to as counterpart components.

In this application, different baffles are obtained by cutting the baffle injection molding parts in different cutting methods, so there is a common structure between different baffles. The second injection molding part 200 is used for cutting, so that the specifications and details of the guide plate are different, so as to obtain different guide plates. Since these baffles are ultimately cut, there must be dimensional variations between different baffles. And the size of the deflector injection molded parts must meet the maximum size of each deflector. By arranging a plurality of cutting structures 210 on the substrate 240 at intervals in sequence, the change of the guide plate from the largest size to the smallest size can be adapted to obtain guide plates of different sizes. The cutting structure 210 can also be used as a cutting mark on the second injection molding part 200 to facilitate workers to cut the deflector injection molded parts. Since the cutting structure 210 is bulged or recessed and protrudes from the base plate 240, and during cutting, the cutting structure 210 is cut to form a mating end for the guide plate to match the counterpart, so the final extension direction of the mating end of the guide plate is also The extending direction of the base plate 240 is misaligned. In this way, when the baffle is mated with a counterpart piece, its mating end is easily deformed, making it easy for interference fit with the counterpart piece.

Since the existing mold can only inject a specific guide plate, the guide plate can only be used with a specific product and cannot be adapted to other products. Even if the structures of the deflectors of multiple products are generally similar, different deflectors cannot be used interchangeably. That is, the existing guide plates have poor interoperability, resulting in the need for different molds to manufacture different guide plates, and the production cost remains high. The deflector injection molded part provided in this application is provided with multiple cutting structures 210 on the second injection molding part, so that after the deflector injection molded part is cut, different deflectors can be obtained to adapt to different products. Strong compatibility. In this way, when producing multiple baffles with similar structures, the design of the mold is reduced and the production cost is greatly reduced.

Furthermore, due to the characteristics of plastics and the fact that most baffles have a sheet-like structure, the baffles usually have varying degrees of deformation capabilities. Through this deformation ability, theoretically it is possible to achieve an interference fit between the deflector and the counterpart. However, the mating end of the existing deflector and the counterpart piece extends straightly. When interfering with the opponent piece, the mating end of the deflector is not easily deformed, and the staff needs to apply greater pressure to deform the entire deflector in order to achieve an interference fit between the deflector and the opponent piece. In this way, not only is there a certain degree of difficulty in the operation, but also after the overall deformation of the deflector, it is easy to affect the guiding effect and strength of the deflector to a certain extent, which is not conducive to the work of the product. With the technical solution of the present application, since the cutting structure 210 is bulged or recessed and protrudes from the base plate 240, the extension direction of the mating end of the guide plate is misaligned with the extension direction of the base plate 240. Therefore, when it is an interference fit with the counterpart piece, The pressure exerted by the handpiece on the deflector is in the wrong direction with the extension direction of the paired end of the deflector. The paired end of the deflector is prone to deformation, while the entire deflector will hardly deform. It can be seen that, compared with the prior art, the injection molded part of the deflector of the present application also has the advantage of facilitating the interference fit between the deflector and the counterpart, and improving the tightness of the fit between the deflector and the counterpart. It should be noted that in this application, the base plate 240 is arranged smoothly, and its surface is a smooth arc surface or a straight surface, while the cutting structure 210 is raised or recessed relative to the plane or arc surface, and is protruding from the base plate 240 .

Of course, the design of the present application is not limited to this. In some cases, the guide plate and the counterpart may also have a tight fit or a clearance fit. When the guide plate is closely matched with the counterpart piece, the mating end extending in the wrong direction with the base plate 240 can improve the tightness of the guide plate and the counterpart piece, thereby improving the tightness of the fit between the guide plate and the counterpart piece. When the deflector is matched with the counterpart piece, the matching end of the deflector can be used as a mark to improve the recognition of the gap between the deflector and the counterpart piece, making it easier for staff to operate and inspect.

Specifically, in this embodiment, the air deflector injection molded part is an automobile air deflector injection molded part, and is injection molded through a single-cavity two-color molding process. The first injection molded part 100 of the air deflector injection molded part is made of hard rubber material. , the second injection molding part 200 is made of soft rubber material. Of course, the design of the present application is not limited to this. In other embodiments of the present application, the guide plate can also be an injection molded part of an air conditioner guide plate or other injection molded parts of the guide plate. Moreover, the material of the first injection molding part 100 and/or the second injection molding part 200 can also be made of soft rubber and/or hard rubber. The specific arrangement can be selected according to the actual use situation.

As shown in FIG. 1 and FIG. 2 , the cutting structure 210 includes a first cutting structure 211 , and the first cutting structure 211 is provided on an edge of the second injection molding part 200 away from the first injection molding part 100 . It can be understood that since the mating end of the guide plate can be obtained after cutting the cutting structure 210, the first cutting structure 211 is provided on the edge of the second injection molding part 200 away from the first injection molding part 100. After cutting the first cutting structure 211, it can be directly Get the largest size deflector. Such an arrangement can minimize the material used for the injection molded parts of the guide plate to reduce costs while ensuring the tightness of the match between the guide plate and the counterpart parts.

Referring to FIG. 3 , after the first cutting structure 211 is disposed on the edge of the substrate 240 , this embodiment further proposes that the first cutting structure 211 extends in an arc from the substrate 240 in a direction away from the first injection molding part 100 . After the first cutting structure 211 is cut, the mating end of the air guide plate will be formed, and the mating end of the air guide plate will be deformed when mated with the counterpart piece. The first cutting structure 211 is set in an arc shape. After the first cutting structure 211 is partially cut, it can still maintain a certain arc. In this way, the matching end of the deflector is conducive to deformation, so as to facilitate the connection between the deflector and the counterpart. room assembly. Moreover, the arc-shaped matching end of the deflector fits the counterpart piece more closely after deformation, which is beneficial to improving the tightness of the fit between the deflector plate and the counterpart piece. Of course, the design of the present application is not limited to this. In other embodiments of the present application, the first cutting structure 211 may also extend in a straight line, or extend in a wavy shape, etc.

Please continue to refer to FIG. 2 , the first cutting structure 211 gradually thickens from the end side away from the substrate 240 toward the substrate 240 . Since the first cutting structure 211 is formed on the edge of the substrate 240 away from the first injection molding part 100, and after being cut, the first cutting structure 211 is used to cooperate with the counterpart piece and does not play a role in guiding the flow, so the first cutting structure 211 is The gradually thicker arrangement of 211 can reduce the structural strength of the first cutting structure 211 so that the first cutting structure 211 can deform, thereby reducing the difficulty of matching the guide plate with the counterpart piece. Moreover, the gradually thickened arrangement of the first cutting structure 211 can also save the material used in the injection molding parts of the baffle to a certain extent, thus reducing costs. In other embodiments of the present application, the first cutting structure 211 may also be configured to have a uniform thickness.

Please combine FIG. 1 and FIG. 2. In this embodiment, the cutting structure 210 also includes a second cutting structure 212. The second cutting structure 212 is provided on the side of the first cutting structure 211 close to the first injection molding part 100. , and extends in an arc. Taking the first injection molding part 100 as a reference, the second cutting structure 212 is located inside the first cutting structure 211 . Obviously, a relatively small size guide plate can be obtained by cutting the second cutting structure 212 . The purpose of arranging the second cutting structure 212 to be arc-shaped is the same as that of configuring the first cutting structure 211 to be arc-shaped. of tightness. At the same time, in the baffle where the second cutting structure 212 is not cut, since the second cutting structure 212 is set in an arc shape, its surface shape is also conducive to the passage of fluid, thereby improving the flow guiding function of the baffle. Of course, in other embodiments of the present application, the second cutting structure 212 may also be arranged to extend in a straight line, a wave shape, or other shapes.

Preferably, the curvature of the second cutting structure 212 is greater than the curvature of the first cutting structure 211 . It can be seen from the above that the second cutting structure 212 is disposed inside the first cutting structure 211. Therefore, unlike the first cutting structure 211, the second cutting structure 212 also has the function of supporting the guide plate before being cut. Therefore, setting the curvature of the second cutting structure 212 to be larger than the first cutting structure 211 can increase the structural strength of the second cutting structure 212 to improve the structural strength of the air guide plate. Moreover, unlike the thickness of the first cutting structure 211 which is gradually thickened from the end away from the second injection molding part 200 toward the direction of the second injection molding part 200 , in order to ensure the structural strength of the guide plate, the thickness of the second cutting structure 212 Set evenly. Of course, on the premise that the structural strength of the baffle is sufficient, in some embodiments of the present application, the curvature of the second cutting structure 212 may be equal to or smaller than the curvature of the first cutting structure 211, and its thickness may also vary.

As shown in FIG. 1 and FIG. 2 , the substrate 240 includes a first connection board 220 and a second connection board 230 . Wherein, the first connecting plate 220 is connected between the first cutting structure 211 and the second cutting structure 212, the second connecting plate 230 is connected between the second cutting structure 212 and the first injection molding part 100, and the second connecting plate 230 is connected between the second cutting structure 212 and the first injection molding part 100. The board 230 and the first connecting board 220 are stacked. Since the first cutting structure 211 and the second cutting structure 212 are both arranged in an arc shape, and the first connecting plate 220 and the second connecting plate 230 are arranged in a stacked manner, it can be understood that the first cutting structure 211 and the second cutting structure The arc center direction of 212 is located on the same side of the second injection molded part 200 . In this way, the structural design of the injection molded part of the deflector can be simplified, and the deformation ability of the deflector can be enhanced, making the deflector less likely to be damaged. At the same time, the stacked arrangement of the first connecting plate 220 and the second connecting plate 230 also has a certain avoidance effect to facilitate the installation of the flow guide plate in the product. Of course, in other embodiments of the present application, when the first cutting structure 211 and the second cutting structure 212 are both arranged in an arc shape, the arc centers of the first cutting structure 211 and the second cutting structure 212 can also be located in the second arc shape respectively. Both sides of the injection molding part 200.

As shown in FIG. 1 and FIG. 2 , the cutting structure 210 also includes a third cutting structure 213 . The third cutting structure 213 is disposed on the side of the second cutting structure 212 close to the first injection molding part 100 and protrudes from the substrate. 240. Taking the first injection molding part 100 as a reference, the third cutting structure 213 is located inside the second cutting structure 212. Obviously, a smaller air guide plate can be obtained by cutting the third cutting structure 213. Specifically, in this embodiment, the third cutting structure 213 is protruded on the second connecting plate 230 . Providing the third cutting structure 213 to protrude from the base plate 240 can enhance the structural strength of the second injection molded part 200 and thereby enhance the structural strength of the guide plate compared with a flat plate surface. Moreover, the third cutting structure 213 can also form an obvious cutting mark on the second injection molding part 200 to facilitate user operation.

Preferably, the second connecting plate 230 has a groove corresponding to the third cutting structure 213 . In this way, the thickness of the baffle at the third cutting structure 213 can be made more even, which is beneficial to the injection molding of the second injection molding part 200 .

As shown in FIG. 2 and FIG. 3 , the third cutting structure 213 includes a first inclined section 213a, a second inclined section 213b and a connecting section 213c. Among them, the connecting section 213c is connected between the first inclined section 213a and the second inclined section 213b, and is arranged parallel to the second connecting plate 230; the first inclined section 213a extends obliquely from the second cutting structure 212 toward the direction of the connecting plate 213c. , the second inclined section 213b extends obliquely from the connecting section 213c toward the direction of the first injection molded part 100 . Setting the third cutting structure 213 as a three-section structure can simplify the structural design of the third cutting structure 213 and facilitate the formation of the third cutting structure 213 . It is worth noting that in this embodiment, since the air deflector injection molded part is an automobile air deflector injection molded part, the third cutting structure 213 can be used not only to be cut, but also to cooperate with other parts on the automobile for positioning. Or fix the deflector.

It should be noted that the design of the present application is not limited to only providing three cutting structures 210 on the second injection molding part 200. Depending on actual needs, one, two, four, or more cutting structures 210 may also be provided on the second injection molding part 200. Five or more cutting structures 210.

Please refer to FIG. 2 . In this embodiment, the third cutting structure 213 is protruding from the second connecting plate 230 , with the third cutting structure 213 as a boundary. In order to facilitate the installation of the automobile air deflector, the second connecting plate 230 is formed with an avoidance concave surface on the side away from the third cutting structure 213 , and the avoidance concave surface is located on the side of the third cutting structure 213 close to the first injection molding part 100 .

The invention also proposes a guide plate injection mold, which is used to prepare guide plate injection molded parts. The specific structure of the deflector injection molded part refers to the above embodiment. Since the deflector injection molded part prepared by the deflector injection mold adopts all the technical solutions of all the above embodiments of the deflector injection molded part, it at least has the above implementation. All the beneficial effects brought by the technical solutions in this example will not be repeated here.

The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Under the inventive concept of the present invention, equivalent structural transformations can be made using the contents of the description and drawings of the present invention, or direct/indirect applications. Other related technical fields are included in the patent protection scope of the present invention.

Claims (8)

1. A baffle injection molding for being cut to obtain baffles of different specifications, comprising:

the first injection molding part is corresponding to the mounting structure of the molded guide plate; the method comprises the steps of,

the second injection molding part is formed on the first injection molding part and comprises a substrate and a plurality of cutting structures which are sequentially arranged on the substrate at intervals, wherein the cutting structures are raised or recessed and are convexly arranged on the substrate, and the cutting structures are used for cutting to form a matched end of the guide plate matched with the opponent;

the cutting structure is used for cutting to obtain a matched end of the guide plate, and the extending direction of the matched end of the guide plate is staggered with the extending direction of the substrate;

the cutting structure comprises a first cutting structure, the first cutting structure is arranged at the edge of one side of the substrate, which is away from the first injection molding part, and the first cutting structure extends in an arc shape from the substrate to the direction away from the first injection molding part.

2. The baffle injection molding of claim 1, wherein the first cutting structure is tapered from an end side distal from the base plate toward the base plate.

3. The baffle injection molding of claim 1, wherein the cutting structure further comprises a second cutting structure disposed on a side of the first cutting structure adjacent to the first injection molding portion and extending in an arc shape.

4. The baffle injection molding of claim 3 wherein the second cutting structure has a greater arc than the first cutting structure.

5. The baffle injection molding of claim 3, wherein the base plate comprises a first connecting plate and a second connecting plate, the first connecting plate being connected between the first cutting structure and the second cutting structure, the second connecting plate being connected between the second cutting structure and the first injection molding portion and being stacked with the first connecting plate.

6. The baffle injection molding of claim 3, wherein the cutting structure further comprises a third cutting structure disposed on a side of the second cutting structure adjacent to the first injection molding portion and protruding from the substrate.

7. The baffle injection molding of any one of claims 1 to 6, wherein the baffle injection molding is an automotive baffle injection molding, and/or wherein the first injection molding is injection molded from a hard or soft plastic material, and/or wherein the second injection molding is injection molded from a hard or soft plastic material.

8. A baffle injection mold for preparing a baffle injection molding according to any one of claims 1 to 7.