A horn insert mounting structure for an injection mold

Abstract

The application discloses a horn insert mounting structure of an injection mold, which comprises a mold body, a horn insert and a main body insert, and the mold body is internally provided with a mounting cavity; when mounting, the horn insert is arranged at a first end of the mounting cavity, a lock catch structure is arranged between the first end of the horn insert and the first end of the mounting cavity, and the main body insert is fixedly arranged at a second end of the mounting cavity and abuts against a second end of the horn insert. The horn insert is vertically limited by the mounting cavity and the lock catch structure, and then the horn insert is horizontally limited by the extrusion of the side of the main body insert, so that the horn insert is stably mounted, the complicated operation of the traditional bolt mounting mode is avoided, and the dismounting efficiency is effectively improved.

Description

Technical Field

[0001] This application relates to the field of mold technology, and in particular to a horn insert mounting structure for injection molds. Background Technology

[0002] In injection molds, the horn-shaped gate presents a smooth, curved, cone shape resembling a horn, with its cross-sectional dimensions continuously decreasing from the larger end to the smaller end, connecting to a non-exterior surface of the product cavity. This structure achieves smooth melt flow through its rounded transition design, effectively avoiding material degradation caused by flow shear.

[0003] Traditionally, horn inlays are installed using bolts, a cumbersome method that requires tightening and loosening multiple bolts during assembly and disassembly, thus affecting efficiency. Therefore, improving the existing horn inlay installation structure to overcome these problems is a pressing issue for those skilled in the art. Utility Model Content

[0004] One of the objectives of this application is to provide a horn insert mounting structure that facilitates quick assembly and disassembly.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a horn insert mounting structure for an injection mold, comprising a mold body, a horn insert, and a main insert, wherein the mold body has an mounting cavity; during installation, the horn insert is placed at the first end of the mounting cavity, and the first end of the horn insert and the first end of the mounting cavity are engaged by a locking structure, and the main insert is fixedly installed at the second end of the mounting cavity and abuts against the second end of the horn insert.

[0006] Preferably, the top of the first end of the horn insert abuts against the top of the first end of the mounting cavity to form the locking structure.

[0007] Preferably, a locking groove is provided on the side of the first end of the horn insert, and a locking block is provided on the inner side of the first end of the mounting cavity; or a locking block is provided on the side of the first end of the horn insert, and a locking groove is provided on the inner side of the first end of the mounting cavity; the locking block and the locking groove cooperate to form the locking structure.

[0008] Preferably, the mating surfaces of the horn insert and the main insert are inclined toward the top of the first end of the mounting cavity.

[0009] Preferably, the angle between the mating surface and the vertical direction is θ, where 0 < θ ≦ 10°.

[0010] Preferably, a groove is provided at the top side of the second end of the horn insert, and a protrusion is provided at the top side of the first end of the main body insert, wherein the groove and the protrusion are adapted to each other.

[0011] Preferably, the horn insert includes a pair of half inserts, which are connected by a positioning component.

[0012] Preferably, the positioning component includes a positioning groove and a positioning strip, the positioning groove and the positioning strip being respectively disposed on opposite sides of the two half-inserts; the vertical cross-section of the positioning groove and the positioning strip is rectangular or T-shaped.

[0013] Compared with the prior art, the beneficial effects of this application are as follows: This invention uses the mounting cavity and locking structure to vertically limit the horn inlay, and then uses the squeezing action of the side of the main inlay to horizontally limit the horn inlay, thus achieving a stable installation of the horn inlay. This avoids the cumbersome operation of traditional bolt fixing and effectively improves the efficiency of disassembly and assembly. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the specific structure of the horn inlay and the main inlay of this utility model.

[0016] Figure 3 This is a schematic diagram illustrating the installation principle of the horn inlay and the main inlay of this utility model.

[0017] Figure 4 A schematic diagram illustrating the design of the fit between the horn inlay and the main inlay of this utility model.

[0018] Figure 5 This is a schematic diagram illustrating the design of the fit between the horn inlay and the main inlay of this utility model.

[0019] In the diagram: 1. Mold body; 2. Injection nozzle; 3. Main insert; 4. Horn insert; 401. Half insert; 5. Sprue solidified material; 501. Ejector pin; 6. Positioning strip; 7. Positioning groove; 8. Mounting cavity; 9. Locking groove; 10. Locking block; 11. Groove; 12. Protrusion. Detailed Implementation

[0020] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0021] In the description of this application, it should be noted that the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., which indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and 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 orientation, and should not be construed as limiting the specific protection scope of this application.

[0022] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0023] One preferred embodiment of this application, such as Figures 1 to 5 As shown, a horn insert mounting structure for an injection mold includes a mold body 1, a horn insert 4, and a main insert 3, with an mounting cavity 8 inside the mold body 1.

[0024] Understandably, during installation, such as Figure 3 and Figure 4 As shown, in the first process: First, place the horn insert 4 at the first end (left end) of the mounting cavity 8, and then fix the main body insert 3 (by bolts) at the second end (right end) of the mounting cavity 8. At this time, the main body insert 3 and the horn insert 4 are in a mating fit, and the left end of the horn insert 4 is engaged with the left end of the mounting cavity 8 through a locking structure; while the right end of the main body insert 3 is engaged with the right end of the mounting cavity 8.

[0025] In other words, such as Figure 4 As shown, the horizontal direction of the horn-shaped insert 4 is locked and limited by the side compression of the main insert 3, while the vertical direction is locked and limited by the locking structure. This achieves a stable installation of the horn-shaped insert 4 within the mounting cavity 8, avoiding the cumbersome operation of traditional bolt-fixed installation methods and effectively improving assembly and disassembly efficiency. Simultaneously, the use of the locking structure allows for convenient and quick positioning of the horn-shaped insert 4 during installation, further enhancing the convenience and accuracy of installation.

[0026] It should be noted that the horn insert 4 is used in conjunction with the main insert 3, that is, the molten plastic enters the horn insert 4 through the main insert 3; therefore, in this application, the installation of the main insert 3 can simultaneously achieve the limiting and locking installation of the adjacent horn insert 4, which greatly improves the installation efficiency.

[0027] This application does not limit the specific structure of the locking mechanism; however, a specific embodiment is provided below for reference: Structure 1: such as Figure 4 As shown, the top left end of the horn insert 4 abuts against the top left end of the mounting cavity 8 to form a locking structure (or an inverted locking structure). This engagement method allows the horn insert 4 to be effectively limited in the vertical direction within the mounting cavity 8, thus achieving stable installation.

[0028] Structure 2: such as Figure 4 As shown, a locking groove 9 is provided on the side of the left end of the horn-shaped insert 4, and a locking block 10 is provided on the inner side of the left end of the mounting cavity 8; or a locking block 10 is provided on the side of the left end of the horn-shaped insert 4, and a locking groove 9 is provided on the inner side of the left end of the mounting cavity 8. During installation, the locking block 10 and the locking groove 9 cooperate to form a locking structure. Through the cooperation of the locking block 10 and the locking groove 9, the horn-shaped insert 4 can be effectively limited in the vertical direction within the mounting cavity 8 to achieve stable installation.

[0029] It should be noted that, for Structure 1, the mounting cavity 8 essentially provides an integral covering and limiting of the left end of the horn-shaped insert 4, making the horn-shaped insert 4 more stable and reliable during installation. For Structure 2, the design of the fit between the locking block 10 and the locking groove 9 is more flexible and can be adjusted according to actual needs (for example, the locking block 10 can be detachably installed using bolts), thus accommodating different models of horn-shaped inserts 4 and improving the adaptability and versatility of installation. Of course, both structures can meet practical needs, and those skilled in the art can choose according to the actual situation.

[0030] Based on the above embodiments, the horn inlay 4 achieves vertical positioning through the locking structure at its left end; however, its right end lacks vertical positioning, which significantly reduces its stability and consequently affects its service life. Specifically: as... Figure 1 and Figure 2 As shown, the main insert 3 works in conjunction with the injection nozzle 2. Molten plastic is injected into the product cavity through the injection nozzle 2 from the main insert 3 and the horn insert 4. After cooling, it forms the gate solidified material 5. The bottom end of the gate solidified material 5 has an ejector pin 501 that works with the mold ejector pin. The ejector pin works with the ejector pin 501 to eject the gate solidified material 5. The "horn" at the front end of the gate solidified material 5 is forcibly separated from the horn insert 4. Therefore, the installation stability of the horn insert 4 will directly affect the service life of the horn insert 4.

[0031] Therefore, in order to further improve the installation stability of the horn inlay 4, this application has further optimized the design of the fit between the horn inlay 4 and the main inlay 3: Design 1: The horn-shaped inlay 4 and the main inlay 3 are positioned at an angle, with the top left end of the mounting cavity 8 facing towards each other (e.g., Figure 4 As shown by the dotted line in the diagram, the right end face of the horn-shaped insert 4 and the left end face of the main insert 3 are beveled, with a certain angle of inclination between the mating surfaces. Specifically, when the main insert 3 is fixedly installed, it exerts a wedge-shaped compression fit on the horn-shaped insert 4. That is, the main insert 3 exerts a downward force on the horn-shaped insert 4, which can be decomposed into a horizontal force and a vertical force. The horizontal force locks the horn-shaped insert 4 horizontally, while the vertical force locks it vertically, thereby further improving the installation stability of the horn-shaped insert 4 within the mounting cavity 8.

[0032] Furthermore, let θ be the angle between the aforementioned inclined mating surface and the vertical direction, where 0 < θ ≦ 10°, meaning the angle value of θ cannot be too large. If θ is too large, it means the upper end of the horn insert 4 is narrower and the lower end is wider. Since the cavity of the horn insert 4 is located at its upper end, an excessively narrow cavity may hinder the flow of molten plastic during injection molding, thus affecting the molding quality of the injection molded product. Therefore, limiting the angle value of θ to 0 < θ ≦ 10° ensures the installation stability of the horn insert 4 within the mounting cavity 8 while avoiding injection molding problems caused by an excessively narrow cavity.

[0033] Design 2: As Figure 5 As shown, a groove 11 is provided at the top right side of the horn insert 4, and a protrusion 12 is provided at the top left side of the main insert 3. The groove 11 and the protrusion 12 are adapted to each other. That is, during installation, the protrusion 12 abuts and is inserted into the groove 11, thereby limiting the vertical position of the horn insert 4 to achieve stable installation.

[0034] It should be noted that, when using Design 1, the inclined mating surface not only achieves vertical locking of the horn insert 4, but also exerts a certain compressive force on the horn insert 4 in the horizontal direction, thus improving the stability of the horn insert 4. When using Design 2, the protrusion 12 and the groove 11 mainly achieve vertical limiting, while horizontal locking and limiting mainly rely on the side of the main insert 3 abutting against the horn insert 4. Of course, in practical applications, Design 1 and Design 2 can also be combined, that is, simultaneously using the inclined mating surface and the engagement of the protrusion 12 and the groove 11, to further improve the installation stability of the horn insert 4 within the mounting cavity 8 and meet higher usage requirements.

[0035] It should be known that, as Figure 4As shown, the flow channel inside the horn insert 4 has a horn-shaped structure. If it were made as a single piece, this curved internal channel would be extremely difficult to machine, especially for deep holes and small-sized horn inserts 4. It would require expensive and specialized deep hole drilling or electrical discharge machining techniques, and would result in long processing times, low yields, and very high costs.

[0036] Therefore, in order to facilitate the processing and forming of the horn inlay 4, such as Figure 2 and Figure 3 As shown, the horn inlay 4 includes a pair of half inlays 401. The two half inlays 401 are connected by a positioning component. That is, corresponding half channels are provided on the two half inlays 401, and the two are connected to form the entire horn channel.

[0037] Specifically, the positioning component includes a positioning groove 6 and a positioning strip 7, which are respectively located on opposite sides of the two half-inserts 401. The vertical cross-sections of the positioning groove 6 and the positioning strip 7 can be designed as rectangular or T-shaped structures, which facilitates processing and ensures a stable connection. During installation, simply inserting the positioning strip 7 accurately into the positioning groove 6 achieves quick pre-positioning and connection of the two half-inserts 401, thus pre-forming them into a single unit for easy subsequent placement and installation.

[0038] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A horn insert mounting structure for an injection mold, characterized in that, include: The mold body comprises a horn insert and a main insert. The mold body has an installation cavity. During installation, the horn insert is placed at the first end of the installation cavity, and the first end of the horn insert and the first end of the installation cavity are engaged by a locking structure. The main insert is fixedly installed at the second end of the installation cavity and abuts against the second end of the horn insert.

2. The horn insert mounting structure for injection molds as described in claim 1, characterized in that: The top of the first end of the horn insert abuts against the top of the first end of the mounting cavity to form the locking structure.

3. The horn insert mounting structure for injection molds as described in claim 1, characterized in that: The horn insert has a locking groove on the side of its first end, and a locking block is provided on the inner side of the first end of the mounting cavity; or the horn insert has a locking block on the side of its first end, and a locking groove is provided on the inner side of the first end of the mounting cavity; the locking block and the locking groove cooperate to form the locking structure.

4. The horn insert mounting structure for injection molds as described in any one of claims 1-3, characterized in that: The mating surfaces of the horn insert and the main insert are inclined towards the top of the first end of the mounting cavity.

5. The horn insert mounting structure for injection molds as described in claim 4, characterized in that: The angle between the mating surface and the vertical direction is θ, where 0 < θ ≦ 10°.

6. The horn insert mounting structure for injection molds as described in any one of claims 1-3, characterized in that: A groove is provided at the top side of the second end of the horn inlay, and a protrusion is provided at the top side of the first end of the main inlay. The groove and the protrusion are adapted to each other.

7. The horn insert installation structure of the injection mold according to claim 1, wherein: The horn insert includes a pair of half inserts, which are connected by a positioning component.

8. The installation structure of the horn insert of the injection mold according to claim 7, characterized in that: The positioning component includes a positioning groove and a positioning strip, which are respectively disposed on opposite sides of the two half-inserts; the vertical cross-section of the positioning groove and the positioning strip is rectangular or T-shaped.

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