Product mold and method for injection molding using the same

Abstract

The disclosed embodiment provides a product mold and a method for injection molding using the same, wherein the product mold includes an upper mold and a lower mold docked with the upper mold, wherein an upper mold cavity is provided in the upper mold and a lower mold cavity is provided in the lower mold; the product mold also includes: a slider structure, which includes a slider body, which is provided in the lower mold; a first cavity is formed inside the slider body, and the first cavity communicates with the upper mold cavity and the lower mold cavity; a boss, which is fixed on the edge of the slider body and extends into the upper mold; the boss cooperates with the upper mold to form a second cavity communicated with the first cavity; during injection molding, the boss is fixed to the upper mold by curing and forming in the second cavity. When the product mold of the disclosed embodiment is opened, after the lower mold is removed, the product can bear part of the weight of the product through the fixation of the boss and the upper mold, thereby alleviating the stress condition when the edge of the product is combined with the upper mold cavity, and ensuring the quality of the product.

Description

Technical Field

[0001] The present disclosure relates to the technical field of mold processing, and in particular to a product mold and an injection molding method using the same. Background Art

[0002] With the development of the national economy, the level of industrial technology has also been greatly improved. The application of molds is indispensable when producing products in industrial technology.

[0003] At present, in the process of molding products by injection molding, after the lower mold is removed, the weight of the product is completely borne by the combination between its edge and the upper mold, which can easily lead to excessive force on the edge of the product, and then easily cause the product to be damaged. In this case, the safety and service life of the product cannot be guaranteed during use, leaving safety hazards, and in serious cases may cause safety accidents. Summary of the invention

[0004] In response to the above-mentioned technical problems existing in the prior art, the present invention provides a product mold and a method for injection molding using the same, wherein a boss is arranged on the slider structure, and the slider structure is fixed to the upper mold through a second cavity between the boss and the upper mold after the raw material is solidified and formed, thereby effectively improving the stress state of the edge of the product when it is combined with the upper mold, thereby improving the quality of the product and ensuring the service life and safety of the product.

[0005] To achieve the above objectives, on the one hand, an embodiment of the present disclosure provides a product mold, comprising an upper mold and a lower mold connected to the upper mold, wherein an upper mold cavity is provided in the upper mold and a lower mold cavity is provided in the lower mold; the product mold further comprises:

[0006] A slider structure, comprising a slider body, wherein the slider body is disposed in the lower mold; a first cavity is formed inside the slider body, and the first cavity communicates with the upper mold cavity and the lower mold cavity;

[0007] A boss is fixed on the edge of the slider body and extends into the upper die; the boss cooperates with the upper die to form a second die cavity communicating with the first die cavity;

[0008] During injection molding, the boss is fixed to the upper mold by curing and molding in the second mold cavity.

[0009] In some embodiments, the slider structure further includes a slider cover, which is disposed on the slider body to cooperate with the slider body to form the first cavity.

[0010] In some embodiments, a flow channel is provided on the edge of the slider body at a position corresponding to the boss, so that the second cavity is connected to the first cavity through the flow channel.

[0011] In some embodiments, the slider body is a hollow structure.

[0012] In some embodiments, a through hole is formed on the slider cover.

[0013] In some embodiments, a gate is provided on the upper portion of the slider body.

[0014] In some embodiments, a slider recess corresponding to the slider body is provided in the lower mold to accommodate the slider body.

[0015] In some embodiments, a boss recess corresponding to the boss is provided in the upper mold to accommodate the boss and cooperate with the boss to form the second cavity.

[0016] On the other hand, the embodiments of the present disclosure further provide a method for injection molding using the product mold provided by any of the above embodiments, comprising:

[0017] Injecting raw material into the first cavity; injecting the raw material through the first cavity into the second cavity connected thereto, so as to be solidified in the second cavity and then formed, and fixing the boss and the upper mold together;

[0018] After the mold is opened, remove the lower mold, open the upper mold, and take out the molded product.

[0019] In some embodiments, the raw materials include at least epoxy material.

[0020] Compared with the prior art, the beneficial effect of the embodiment of the present disclosure is that: the product mold of the embodiment of the present disclosure forms a second cavity with the upper mold through the boss and the surrounding of the boss, so that during injection molding, the raw material is solidified and formed in the second cavity, and the boss can be fixed in the upper mold. In this way, when the mold is opened and the lower mold is removed, when the product is fixed in the upper mold cavity by combining with the upper mold cavity, the boss and the upper mold can also bear part of the weight of the product, thereby alleviating the stress on the edge of the product when it is combined with the upper mold cavity, and ensuring the quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In the drawings, which are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The same reference numerals with letter suffixes or different letter suffixes may represent different instances of similar parts. The accompanying drawings generally illustrate various embodiments by way of example and not limitation, and together with the specification and claims, are used to illustrate the disclosed embodiments. When appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts. Such embodiments are illustrative and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.

[0022] Figure 1 A schematic diagram of the structure of a product mold provided by an embodiment of the present disclosure;

[0023] Figure 2 A bottom view of a product mold provided by an embodiment of the present disclosure;

[0024] Figure 3 for Figure 2 Sectional view in the AA direction;

[0025] Figure 4 for Figure 3 A partial enlarged view of part B;

[0026] Figure 5 It is a structural schematic diagram of the slider body.

[0027] The components indicated by the reference numerals in the figures are:

[0028] 100-upper mold; 110-first half mold; 101-upper mold cavity; 120-boss pit; 130-second mold cavity;

[0029] 200-lower die; 201-lower die cavity;

[0030] 300-slider structure; 310-slider body; 311-runner; 312-first cavity; 313-gate; 320-slider cover; 321-through hole;

[0031] 400-Boss. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present disclosure, the present disclosure is described in detail below in conjunction with the drawings and specific implementation methods. The embodiments of the present disclosure are further described in detail below in conjunction with the drawings and specific implementation methods, but are not intended to limit the present disclosure.

[0033] The words "first", "second" and similar words used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different parts. The words "include" or "comprise" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0034] In the present disclosure, when a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other device without an intermediate device, or may not be directly connected to the other device but have an intermediate device.

[0035] All terms (including technical terms or scientific terms) used in the present disclosure have the same meanings as those understood by ordinary technicians in the field to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, such as general dictionaries, should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0036] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0037] The present disclosure provides a product mold, such as Figures 1 to 4 As shown, Figures 1 to 3 A set of molds including 4 molds of the product is shown in FIG. Figure 4 Shows Figure 3 Schematic diagram of the structure of the middle slider body 310, the boss 400 and the upper mold 100. Figure 1 Among the four product molds shown in FIG. 1 , product mold 1 is a normal state of the product mold, and product mold 2 is a state in which the structure in the lower mold cavity 201 is revealed after the lower mold 200 is hidden. As shown in the figure, the product mold includes an upper mold 100 and a lower mold 200, and the upper mold 100 and the lower mold 200 are connected to each other, and form the whole of the product mold in appearance. An upper mold cavity 101 is provided in the upper mold 100, and a lower mold cavity 201 is provided in the lower mold 200. After the upper mold 100 and the lower mold 200 are connected to each other, the upper mold cavity 101 and the lower mold cavity 201 are connected to each other to form the overall shape of the product. The product mold also includes a slider structure 300. The slider structure 300 includes a slider body 310, and the slider body 310 is provided in the lower mold 200. A first mold cavity 312 is formed inside the slider body 310, and the first mold cavity 312 is located in the lower mold 200 and can connect the upper mold cavity 101 and the lower mold cavity 201. A boss 400 is fixedly provided on the edge of the slider body 310 . The boss 400 extends into the upper mold 100 and cooperates with the upper mold 100 to form a second mold cavity 130 communicating with the first mold cavity 312 .

[0038] During injection molding, the raw material enters the second cavity 130 from the first cavity 312 and fills the second cavity 130, so that after solidification and molding in the second cavity 130, the boss 400 can be fixed in the upper mold 100. The shape of the boss 400 disclosed in the present invention can be set according to actual needs, for example, it can be set to a T shape, etc., so that the boss 400 can be more firmly fixed to the upper mold 100 and is not easy to fall off. The position and number of the boss 400 in the present disclosure can be set according to actual conditions. For example, when setting the position of the boss 400, it is considered that the position of the gate 313 set on the slider body 310 is not blocked, etc. In order to make the force uniform, the number of bosses 400 can also be set to two, symmetrically arranged on the slider body 310.

[0039] The product mold of the embodiment of the present disclosure is formed by the boss 400 and the second cavity 130 formed around the boss 400 and the upper mold 100, so that during injection molding, the raw material is solidified and formed in the second cavity 130, and the boss 400 can be fixed in the upper mold 100. In this way, when the mold is opened, after the lower mold 200 is removed, when the product is fixed in the upper mold cavity 101 by combining with the upper mold cavity 101, the boss 400 can also bear part of the weight of the product through the fixing of the upper mold 100, thereby alleviating the stress on the edge of the product when it is combined with the upper mold cavity 101, and ensuring the quality of the product.

[0040] In some embodiments, the slider structure 300 further includes a slider cover 320, which is covered on the slider body 310 and cooperates with the slider body 310 to form a closed structure to construct the first cavity 312. The size and shape of the slider cover 320 are compatible with the slider body 310, and the present application does not limit this.

[0041] In the present disclosure, when the slider cover 320 covers the slider body 310, a gap may be left when cooperating with the edge of the slider body 310, so that the first cavity 312 can be connected with the second cavity 130. Further, in order to allow the raw material to be more accurately injected into the second cavity 130 during injection molding, in some embodiments, such as Figure 5 As shown, a flow channel 311 is provided on the edge of the slider body 310 at a position corresponding to the boss 400, so as to connect the second cavity 130 with the first cavity 312 through the flow channel 311. The shape of the flow channel 311 can be provided according to actual needs, and this application does not limit this.

[0042] In some embodiments, the slider body 310 is a hollow structure, that is, the bottom of the slider body 310 can be omitted, and the first mold cavity 312 is directly connected to the lower mold cavity 201.

[0043] In some embodiments, the slider cover 320 is provided with a through hole 321 to allow the first cavity 312 to communicate with the upper cavity 101. The shape and size of the through hole 321 can be set according to actual needs, and the present application does not limit this.

[0044] In some embodiments, a gate 313 is provided at the upper portion of the slider body 310 to inject raw materials into the first cavity through the gate 313. The shape and size of the gate 313 can be set according to actual needs, and this application does not limit this. In specific applications, the raw materials can be injected into the first cavity 312 through the gate 313, and then the raw materials can be injected into the upper cavity 101, the lower cavity 201 and the second cavity 130 connected to the first cavity 312 through the first cavity 312, so as to be cured and formed in the upper cavity 101, the lower cavity 201 and the second cavity 130 to form a corresponding structure.

[0045] In some embodiments, a slider pit (not shown) corresponding to the slider body 310 is disposed in the lower mold 200 to accommodate the slider body 310 during injection molding, so that a corresponding structure on the product is formed through the slider body 310 .

[0046] In some embodiments, a boss pit 120 corresponding to the boss 400 is provided in the upper mold 100 to accommodate the boss 400 and cooperate with the boss 400 to form the second cavity 130. The boss pit 120 in this embodiment can be adapted to the boss 400 in shape. For example, if the boss 400 is T-shaped, the boss pit 120 is also set to be T-shaped. The boss pit 120 can accommodate the tip of the boss 400 and needs to be slightly larger than a part of the outer contour of the boss 400 to form a certain accommodation gap with the boss 400 to construct the second cavity 130. In specific applications, in order to facilitate the demoulding of the boss 400 with the product, the second cavity 130 can be set at the position where the upper mold 100 is opened. Exemplarily, when the upper mold 100 is composed of a first half mold 110 and a second half mold (not shown), when two bosses 400 are provided, half of the second cavity 130 can be respectively constructed at the joint of the first half mold 110 and the second half mold. In this way, after the first half mold 110 and the second half mold are joined, two second cavities 130 can be formed to accommodate the two bosses 400.

[0047] A method for injection molding using a product mold provided by any of the above embodiments comprises the following steps:

[0048] Injecting raw material into the first cavity 312; injecting the raw material into the second cavity 130 connected thereto through the first cavity 312, so as to be solidified in the second cavity 130 and then be formed, thereby fixing the boss 400 and the upper mold 100 together;

[0049] After the mold is opened, the lower mold 200 is removed, the upper mold 100 is opened, and the molded product is taken out.

[0050] In some embodiments, the raw materials include at least epoxy material.

[0051] Exemplarily, a gate 313 may be provided on the slider body 310, and during injection molding, the raw material for forming the product is injected into the first cavity 312 through the gate 313. After the raw material is injected into the first cavity 312, the upper cavity 101, the lower cavity 201, and the second cavity 130 connected to the first cavity 312 may be injected through the first cavity 312, and after the upper cavity 101, the lower cavity 201, and the second cavity 130 are filled, they are solidified and formed to form a corresponding structure. At this time, the boss 400 and the upper mold 100 may be fixed together by the raw material being solidified and formed in the second cavity 130. After the mold is opened, the lower mold 200 is removed, the upper mold 100 is opened, and the molded product is taken out. In this way, when the mold is opened, after removing the lower mold 200, when the product is fixed in the upper mold cavity 101 by combining with the upper mold cavity 101, the boss 400 can also bear part of the weight of the product by fixing it with the upper mold 100, thereby alleviating the stress on the edge of the product when it is combined with the upper mold cavity 101, and ensuring the quality of the product.

[0052] In some embodiments, in order to facilitate demolding, the raw material may include epoxy material.

[0053] In addition, although exemplary embodiments have been described herein, the scope includes any and all embodiments based on the present disclosure with equivalent elements, modifications, omissions, combinations (e.g., various embodiments intersecting schemes), adaptations or changes. The elements in the claims will be interpreted broadly based on the language adopted in the claims, and are not limited to the examples described in this specification or during the implementation of the present disclosure, and the examples will be interpreted as non-exclusive. Therefore, this specification and examples are intended to be considered as examples only, and the true scope and spirit are indicated by the following claims and the full scope of their equivalents.

[0054] The above description is intended to be illustrative rather than restrictive. For example, the above examples (or one or more of them) can be used in combination with each other. For example, a person of ordinary skill in the art can use other embodiments when reading the above description. In addition, in the above-mentioned specific embodiments, various features can be grouped together to simplify the present disclosure. This should not be interpreted as an intention that a disclosed feature that is not required to be protected is necessary for any claim. On the contrary, the subject matter of the present disclosure may be less than all the features of a specific disclosed embodiment. Thus, the following claims are incorporated into the specific embodiments as examples or embodiments, wherein each claim is independently used as a separate embodiment, and it is considered that these embodiments can be combined with each other in various combinations or arrangements. The scope of the present disclosure should be determined with reference to the attached claims and the full scope of equivalent forms granted by these claims.

[0055] The above embodiments are only exemplary embodiments of the present disclosure and are not intended to limit the present disclosure. The protection scope of the present disclosure is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present disclosure within the essence and protection scope of the present disclosure, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present disclosure.

Claims

1. A product mold, comprising an upper mold and a lower mold connected to the upper mold, wherein the upper mold is provided with an upper mold cavity, and the lower mold is provided with a lower mold cavity; characterized in that: The product mold also includes: A slider structure, comprising a slider body, wherein the slider body is disposed in the lower mold; a first cavity is formed inside the slider body, and the first cavity communicates with the upper mold cavity and the lower mold cavity; A boss is fixed on the edge of the slider body and extends into the upper die; the boss cooperates with the upper die to form a second die cavity communicating with the first die cavity; During injection molding, the boss is fixed to the upper mold by curing and molding in the second mold cavity; The slider structure further includes a slider cover, which is disposed on the slider body to cooperate with the slider body to form the first cavity; The lower mold is provided with a slider pit corresponding to the slider body to accommodate the slider body.

2. The product mold according to claim 1, characterized in that: A flow channel is provided on the edge of the slider body at a position corresponding to the boss, so that the second cavity is connected with the first cavity through the flow channel.

3. The product mold according to claim 1, characterized in that: The slider body is a hollow structure.

4. The product mold according to claim 3, characterized in that: The slider cover is provided with a through hole.

5. The product mold according to claim 4, characterized in that: A gate is arranged on the upper part of the slider body.

6. The product mold according to claim 1, characterized in that: A boss recess corresponding to the boss is provided in the upper mold to accommodate the boss and cooperate with the boss to form the second cavity.

7. A method for injection molding using the product mold according to any one of claims 1 to 6, characterized in that: include: injecting raw material into the first cavity; The raw material is injected into the second cavity connected to the first cavity through the first cavity, so as to be solidified in the second cavity and then formed, thereby fixing the boss and the upper mold together; After the mold is opened, remove the lower mold, open the upper mold, and take out the molded product.

8. The method according to claim 7, characterized in that The raw materials at least include epoxy material.

Images