Iron wire injection molding sizing mold

Abstract

The utility model discloses a kind of iron wire injection moulding shaping moulds including lower mould, its upper surface is equipped with the positioning cavity for iron wire injection glue, the end of the positioning cavity extends and forms arc elbow part, it is characterized by: still include clamping piece, it is embedded in positioning cavity for positioning iron wire, the load end of the clamping piece is contacted with iron wire, and the section of load end is conical structure, lower mould upper surface is detachably connected with guard plate by fixed pin, the guard plate covers the elbow part at the lower mould. The utility model is through conical structure (concave-convex alternate side surface) to facilitate silica gel and groove to separate, effectively reduce the peeling force of silica gel and iron wire surface;Meanwhile, silica gel can form three-dimensional interlocking structure when solidifying, in addition, the setting of guard plate can prevent iron wire from colliding at bending place and elbow part position to protect lower mould.

Description

Technical Field

[0001] This utility model relates to the field of silicone coating technology for iron wire, and in particular to a molding die for iron wire injection molding. Background Technology

[0002] In the silicone molding process, when embedding iron wire as a reinforcing material into silicone products, a series of technical challenges are often encountered. For example, the positioning part used to fix the iron wire in the mold may be torn along with the silicone layer during demolding due to excessive adhesion between the silicone and the iron wire, resulting in large-area irregular defects, which seriously affects the difficulty of subsequent glue repair. Utility Model Content

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0004] To address the aforementioned problems, this utility model provides the following technical solution: it includes a lower mold with a positioning cavity for injecting glue into the iron wire, the end of which extends to form an arc-shaped bend. The feature is that it further includes a clamping member embedded within the positioning cavity for positioning the iron wire. The bearing end of the clamping member contacts the iron wire, and the cross-section of the bearing end is tapered.

[0005] Preferably, the clamping member includes a base and a support portion, the support portion is disposed on the base, the base is disposed within the positioning cavity, and the support portion is a bearing end.

[0006] Preferably, the support portion has a groove inside, and a magnet and an iron wire are magnetically attracted to each other in the groove.

[0007] Preferably, the first surface of the support is connected to the upper surface of the base, and the second surface of the support is in contact with the surface of the wire.

[0008] Preferably, the distance between the second surface and the first surface of the support gradually increases on the side of the support portion.

[0009] Preferably, the side surface is formed by connecting surfaces with alternating recesses and protrusions.

[0010] Preferably, the upper surface of the lower mold is detachably connected to the guard plate by a fixing pin, and the guard plate covers the bend of the lower mold.

[0011] The beneficial effects of this invention are: the conical structure (alternating concave and convex sides) design facilitates the separation of the silicone from the groove, effectively reducing the peeling force between the silicone and the wire surface; simultaneously, the silicone can form a three-dimensional interlocking structure during curing. Furthermore, the protective plate prevents the wire from colliding with bends and turns, thus protecting the lower mold. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a perspective view of the entire embodiment.

[0013] Figure 2 This is an example. Figure 1 A partial schematic diagram.

[0014] Figure 3 This is an example. Figure 2 A three-dimensional view of the clamping component.

[0015] Figure 4 This is an example. Figure 3 A sectional view.

[0016] Figure 5 This is an example. Figure 2 A magnified view of a portion of the image.

[0017] Figure 6 This is an example. Figure 5 A 3D view of the silicone coating.

[0018] In the figure; lower mold 100, positioning cavity 100a, bend 100b; Clamping component 200, base 201, support part 202, bearing end 203, groove 202a, first surface 202-1, second surface 202-2, side surface 202-3, recess 202-3a, protrusion 202-3b, spacing 202-3c; Protective plate 300, fixing pin 400, wire strip 500, silicone coating 600, conical groove 600a. Detailed Implementation

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0021] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0022] Example 1 Reference Figures 1 to 3 This is an embodiment of the present invention, which provides a wire injection molding shaping mold, including a lower mold 100, on which are provided a tool for fixing the wire. Figure 2 The positioning cavity 100a of the iron wire 500. The end of the positioning cavity 100a extends to form an arc-shaped bend 100b, which cooperates with the bending part of the iron wire to form the injection molding cavity.

[0023] A clamping member 200 is provided inside the positioning cavity 100a, and its tapered bearing end 203 contacts and positions the wire. Although this tapered structure prevents glue from being applied to the surface of the wire at the contact point, it effectively avoids large-area glue detachment. At the same time, the formed regular tapered notch facilitates subsequent glue application, significantly improving product yield. In addition, the tapered structure can prevent most of the glue from peeling off the surface of the wire after glue application.

[0024] Example 2 Reference Figures 2 to 6 In another embodiment of this utility model, the clamping member 200 includes a base 201 and a support portion 202. The support portion 202 is disposed on the base 201, which is located in the positioning cavity 100a. The support portion 202 is a bearing end 203. A groove 202a is provided inside the support portion 202. A magnet is provided in the groove 202a and magnetically attracts the iron wire. The first surface 202-1 of the support portion 202 is connected to the upper surface of the base 201. The second surface 202-2 of the support portion 202 is in contact with the surface of the iron wire. The side surface 202-3 of the support portion 202 gradually increases from the distance 202-3c between the second surface 202-2 and the first surface 202-1. The side surface 202-3 is formed by alternating surfaces of recess 202-3a and protrusion 202-3b.

[0025] Specifically, the clamping member 200 consists of a base 201 and a support 202. The base 201 is fixedly installed in the positioning cavity 100a, and the support 202 is positioned above the base 201. The top of the support 202 forms a bearing end 203, which has a groove 202a inside. A magnet is embedded in the groove to help fix the position of the wire through magnetic attraction.

[0026] The support portion 202 has the following structural features: The first surface 202-1 is connected and fixed to the upper surface of the base 201; The second surface 202-2 is in direct contact with the surface of the iron wire; The side surface 202-3 has a special feature: the distance 202-3c from the second surface 202-2 to the first surface 202-1 gradually increases, forming a conical transition (the wire strip 500 wraps around the silicone coating 600, leaving a conical groove 600a on the support 202, and the conical groove 600a also retains the alternating structure of the support 202's recess 202-3a and protrusion 202-3b, which is convenient for glue application and shaping). The side surface 202-3 is composed of alternating recesses 202-3a and protrusions 202-3b.

[0027] This structure allows the clamping member 200 to maintain the positioning accuracy of the wire while offering the following advantages: Magnetic-assisted fixation can reduce mechanical clamping force and lower the risk of wire deformation; The gradient side spacing creates a natural transition, which is beneficial for the flow and filling of silicone. The alternating surface structure enhances the adhesion to silicone and prevents delamination, making it suitable for accurately shaping and filling notches (conical groove 600a).

[0028] Example 3 Reference Figure 1 In another embodiment of the present invention, the upper surface of the lower mold 100 is detachably connected to the guard plate 300 by a fixing pin 400, and the guard plate 300 covers the bend 100b of the lower mold 100.

[0029] Specifically, the guard plate 300 is reliably connected to the lower mold 100 through the fixing pin 400. The lower mold 100 is provided with threaded holes at corresponding positions to facilitate the locking and installation of the fixing pin 400, facilitate quick disassembly and maintenance, and make the operation simple. The rigid connection of the fixing pin 400 can effectively prevent the guard plate 300 from micro-displacement during the glue injection process. At the same time, the removable guard plate 300 covers the bend 100b of the lower mold 100 and fits tightly against the upper surface of the lower mold 100. Because the wire is thin and has a certain degree of elasticity, the bent part of the wire is prone to collision with the upper surface of the mold due to its elasticity during the placement process into the mold cavity, which can cause damage to the mold. The guard plate 300 is installed in place before the glue injection process. When positioning the wire, it plays a role in preventing collision at the bend 100b, thereby protecting the lower mold.

[0030] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A wire injection molding mold, comprising a lower mold (100) having a positioning cavity (100a) for injecting glue into the wire, wherein the end of the positioning cavity (100a) extends to form an arc-shaped bend (100b), characterized in that: It also includes a clamping member (200) embedded in the positioning cavity (100a) for positioning the wire. The bearing end (203) of the clamping member (200) is in contact with the wire, and the cross section of the bearing end (203) is tapered.

2. The wire injection molding mold as described in claim 1, characterized in that: The clamping member (200) includes a base (201) and a support (202). The support (202) is disposed on the base (201), the base (201) is disposed in the positioning cavity (100a), and the support (202) is a bearing end (203).

3. The wire injection molding mold as described in claim 2, characterized in that: The support part (202) has a groove (202a) inside, and a magnet and iron wire are magnetically attracted in the groove (202a).

4. The wire injection molding mold as described in claim 2, characterized in that: The first surface (202-1) of the support part (202) is connected to the upper surface of the base (201), and the second surface (202-2) of the support part (202) is in contact with the surface of the wire.

5. The wire injection molding mold as described in claim 4, characterized in that: The side (202-3) of the support (202) gradually increases in distance (202-3c) from the second surface (202-2) to the first surface (202-1).

6. The wire injection molding mold as described in claim 5, characterized in that: The side surface (202-3) is formed by connecting surfaces with alternating recesses (202-3a) and protrusions (202-3b).

7. The wire injection molding mold as described in claim 1, characterized in that: The upper surface of the lower mold (100) is detachably connected to the guard plate (300) by a fixing pin (400), and the guard plate (300) covers the bend (100b) of the lower mold (100).

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