A hidden horn glue feeding mold

Abstract

The utility model provides a mould of hidden ox horn glue feeding, including back mould and the die core of setting on back mould, still include first insert piece, second insert piece and third insert piece, first insert piece and second insert piece are installed between die core and die core, and third insert piece is installed between die core and back mould, and the ox horn glue feeding runner is formed between first insert piece, second insert piece and third insert piece, and the forming cavity for forming product is formed between die core and die core, and the ox horn glue feeding runner is communicated with the forming cavity, the utility model discloses a mould of hidden ox horn glue feeding through setting first insert piece, second insert piece and third insert piece, when installing, first insert piece and second insert piece are installed into first installation groove, and then third insert piece is installed into second installation groove, and when third insert piece is installed, first insert piece and second insert piece are pushed to the direction of die core and are removed, so that the plug -in block is inserted into the slot, and then it can realize automatic water gap and the product can realize the appearance of the outside of the parting surface outside appearance no insert piece clamp line, improve the product's aesthetic degree.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a concealed horn-shaped glue injection mold. Background Technology

[0002] Chinese Patent Document No. CN222135759U, dated December 10, 2024, discloses a mold for preventing the horn gate from falling off, relating to the field of injection mold technology. It includes a horn insert with a horn-shaped sprue and an ejector pin for ejecting the horn gate formed within the horn sprue. The horn insert has an ejector pin hole that slides with the ejector pin. The horn sprue includes an ejector section located within the ejector pin hole, a horn-shaped injection section connecting to the product cavity, and a flow divider section connecting the injection section and the ejector section. Side grooves are formed on opposite sides of the ejector pin's ejector end. The groove walls, opposite to the ejector pin hole wall, extend to the ejector pin's ejector end face, forming a channel connecting the horn sprue. The distance from the ejector end face to the flow divider section when the ejector pin is in its zero-position position is greater than the sprue depth of the injection section. This mold uses a cow horn insert with a cow horn-shaped glue inlet. Gluing is then performed through this insert, which can cause the insert to become embedded in the product's surface, affecting the product's appearance.

[0003] Therefore, further improvements are necessary. Utility Model Content

[0004] The purpose of this utility model is to provide a concealed horn-shaped glue injection mold with a simple and reasonable structure, good product quality, no embedded lines on the product appearance, high production efficiency, and strong practicality, so as to overcome the shortcomings of the existing technology.

[0005] A concealed horn-shaped injection mold designed for this purpose includes a rear mold and a mold core and a mold platen disposed on the rear mold. Its features include a first insert, a second insert, and a third insert. The first and second inserts are installed between the mold core and the mold platen, and the third insert is installed between the mold core and the rear mold. A horn-shaped injection channel is formed between the first, second, and third inserts. A molding cavity for molding the product is formed between the mold core and the mold platen. The horn-shaped injection channel connects to the molding cavity.

[0006] A first mounting groove is formed between the mold core and the mold plate, and a second mounting groove is formed between the mold core and the rear mold. The first mounting groove and the second mounting groove are interconnected. A first insert and a second insert are installed in the first mounting groove, and a third insert is installed in the second mounting groove.

[0007] The first mounting groove has a slot at one end near the mold core. One end of the first insert and one end of the second insert together form an insert block. When the third insert is installed, it pushes the first insert and the second insert to move in the first direction so that the insert block is inserted into the slot.

[0008] The horn-shaped glue inlet channel includes a straight channel and a horn-shaped flow channel, which are connected to the molding cavity in sequence.

[0009] A straight flow channel is formed between the first insert, the second insert, and the third insert, and a horn flow channel is formed between the first insert and the second insert.

[0010] The first insert has a positioning protrusion at one end and the second insert has a positioning notch at the other end. The third insert has positioning notches on both sides, and the positioning protrusion is inserted into the corresponding positioning notch.

[0011] The first and second inserts are symmetrically arranged on one side of the third insert.

[0012] The mold core is provided with an insert fitting part, which fits into the insert block, and an insert clamping line is formed between the insert fitting part and the insert block.

[0013] The horn-shaped injection channel also includes an inlet channel, which connects to the direct flow channel. An inlet channel is formed between the third insert and the rear mold.

[0014] The rear mold is equipped with an ejector pin, one end of which is provided with a function part for lifting the product. The mold core is provided with a movable groove that connects to the molding cavity, and the function part is movably mounted on the movable groove.

[0015] This utility model discloses a concealed horn-shaped injection mold. By setting a first insert, a second insert, and a third insert, the first and second inserts are installed between the mold core and the mold plate, and the third insert is installed between the mold core and the rear mold. During installation, the first and second inserts are first installed into the first mounting slot, and then the third insert is installed into the second mounting slot. When the third insert is installed, it pushes the first and second inserts towards the mold plate so that the insert block is inserted into the slot. This enables automatic gate shut-off and the product can achieve a side appearance without insert clamping lines except for the parting surface, thus improving the product's aesthetics. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the mold in one embodiment of the present invention.

[0017] Figure 2 This is a cross-sectional view of the mold in one embodiment of the present invention.

[0018] Figure 3 This is a cross-sectional view of the mold after the product has been removed in one embodiment of the present invention.

[0019] Figure 4 This is a partial structural cross-sectional view of the mold in one embodiment of the present invention.

[0020] Figure 5 This is a partial structural diagram of the mold in one embodiment of the present invention.

[0021] Figure 6 This is a schematic diagram of the assembly structure of the first insert, the second insert, and the third insert in one embodiment of the present invention.

[0022] Figure 7 This is an exploded structural diagram of the first insert, the second insert, and the third insert in one embodiment of the present invention.

[0023] Figure 8 This is a schematic diagram of the overall structure of the core mold in one embodiment of the present invention.

[0024] Figure 9 This is a schematic diagram of the overall structure of the product in one embodiment of the present utility model. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] See Figures 1-9 The concealed horn-shaped injection mold includes a rear mold 1 and a mold core 2 and a mold core 3 disposed on the rear mold 1. It also includes a first insert 4, a second insert 5 and a third insert 6. The first insert 4 and the second insert 5 are installed between the mold core 2 and the mold core 3, and the third insert 6 is installed between the mold core 2 and the rear mold 1. The first insert 4, the second insert 5 and the third insert 6 form a horn-shaped injection channel 7. The mold core 2 and the mold core 3 form a molding cavity 9 for molding a product 8. The horn-shaped injection channel 7 connects to the molding cavity 9, and the glue enters the molding cavity 9 through the horn-shaped injection channel 7.

[0027] A first mounting groove 10 is formed between the mold core 2 and the mold core 3, and a second mounting groove 11 is formed between the mold core 2 and the rear mold 1. The first mounting groove 10 and the second mounting groove 11 are interconnected. The first insert 4 and the second insert 5 are installed on the first mounting groove 10, and the third insert 6 is installed on the second mounting groove 11. The side of the third insert 6 is in close contact with the side of the first insert 4 and the side of the second insert 5, respectively.

[0028] The first mounting groove 10 has a slot 12 at one end near the mold core 3. One end of the first insert 4 and one end of the second insert 5 together form an insert block 13. When the third insert 6 is installed, it pushes the first insert 4 and the second insert 5 to move in the first direction A (i.e., the direction of the mold core 3) so that the insert block 13 is inserted into the slot 12, which can realize that no insert clamping line is generated on the appearance surface of the product when using the horn-shaped glue injection. One side of the insert block 13 abuts against the mold core 3. The slot 12 is formed between the mold core 2 and the mold core 3.

[0029] The corner injection channel 7 includes a straight channel 14 and a horn-shaped channel 15, which are connected in sequence to the molding cavity 9.

[0030] A straight channel 14 is formed between the first insert 4, the second insert 5 and the third insert 6, and a horn-shaped channel 15 is formed between the first insert 4 and the second insert 5.

[0031] The other end of the first insert 4 and the other end of the second insert 5 are respectively provided with positioning protrusions 16, and the two sides of the third insert 6 are respectively provided with positioning notches 17. The positioning protrusions 16 are inserted into the corresponding positioning notches 17 so that the third insert 6 is positioned relative to the first insert 4 and the second insert 5 respectively.

[0032] The first insert 4 and the second insert 5 are symmetrically arranged on one side of the third insert 6. The first insert 4 and the second insert 5 have the same shape and structure and are symmetrical to each other.

[0033] The mold core 2 has an insert fitting part 18 in the middle. The insert fitting part 18 fits into the insert block 13. An insert clamping line 19 is formed between the insert fitting part 18 and the insert block 13. The insert clamping line 19 does not coincide with the PL line 25 of the product.

[0034] The horn-shaped injection channel 7 also includes an inlet channel 20, which connects to the direct current channel 14. The inlet channel 20 is formed between the third insert 6 and the rear mold 1. During injection, the material enters the direct current channel 14 through the inlet channel 20, then enters the horn-shaped injection channel 15, and enters the molding cavity 9 through the horn-shaped injection channel 15. Using the horn-shaped injection channel 15 can improve the appearance quality of the product.

[0035] The rear mold 1 is provided with an ejector pin 21, and one end of the ejector pin 21 is provided with a function part 22 for lifting the product 8. The mold core 3 is provided with a movable groove 23 that connects to the molding cavity 9, and the function part 22 is movably disposed on the movable groove 23. The ejector pin 21 is driven by a driving device (such as a cylinder), and then lifts the product 8 upward through the function part 22, thereby realizing the release of the product 8.

[0036] The mold core 3 is provided with a first through hole 24, and the rear mold 1 is provided with a second through hole. The ejector rod 21 passes through the first through hole 24 and the second through hole in sequence, and the ejector rod 21 moves up and down along the first through hole 24 and the second through hole.

[0037] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A concealed horn-shaped injection mold, comprising a rear mold (1) and a mold core (2) and a mold platen (3) disposed on the rear mold (1), characterized in that: It also includes a first insert (4), a second insert (5) and a third insert (6). The first insert (4) and the second insert (5) are installed between the mold core (2) and the mold core (3), and the third insert (6) is installed between the mold core (2) and the rear mold (1). A horn-shaped glue inlet channel (7) is formed between the first insert (4), the second insert (5) and the third insert (6). A molding cavity (9) for molding the product (8) is formed between the mold core (2) and the mold core (3). The horn-shaped glue inlet channel (7) is connected to the molding cavity (9).

2. The concealed horn-shaped glue injection mold according to claim 1, characterized in that: A first mounting groove (10) is formed between the mold core (2) and the mold core (3), and a second mounting groove (11) is formed between the mold core (2) and the rear mold (1). The first mounting groove (10) and the second mounting groove (11) are interconnected. The first insert (4) and the second insert (5) are installed on the first mounting groove (10), and the third insert (6) is installed on the second mounting groove (11).

3. The concealed horn-shaped glue injection mold according to claim 2, characterized in that: The first mounting groove (10) has a slot (12) at one end near the mold core (3). One end of the first insert (4) and one end of the second insert (5) together form a plug (13). When the third insert (6) is installed, it pushes the first insert (4) and the second insert (5) to move in the first direction (A) so that the plug (13) is inserted into the slot (12).

4. The concealed horn-shaped glue injection mold according to claim 1, characterized in that: The horn-shaped glue inlet channel (7) includes a straight channel (14) and a horn-shaped flow channel (15), and the straight channel (14), the horn-shaped flow channel (15) and the molding cavity (9) are connected in sequence.

5. The concealed horn-shaped glue injection mold according to claim 4, characterized in that: A straight channel (14) is formed between the first insert (4), the second insert (5) and the third insert (6), and a horn-shaped channel (15) is formed between the first insert (4) and the second insert (5).

6. The concealed horn-shaped glue injection mold according to claim 4, characterized in that: The other end of the first insert (4) and the other end of the second insert (5) are respectively provided with positioning protrusions (16), and the two sides of the third insert (6) are respectively provided with positioning notches (17), and the positioning protrusions (16) are inserted into the corresponding positioning notches (17).

7. The concealed horn-shaped glue injection mold according to claim 1, characterized in that: The first insert (4) and the second insert (5) are symmetrically arranged on one side of the third insert (6).

8. The concealed horn-shaped glue injection mold according to claim 3, characterized in that: The mold core (2) is provided with an insert fitting part (18), the insert fitting part (18) and the insert block (13) fit together, and an insert clamping line (19) is formed between the insert fitting part (18) and the insert block (13).

9. The concealed horn-shaped glue injection mold according to claim 5, characterized in that: The horn-shaped injection channel (7) also includes an inlet channel (20), which is connected to the direct channel (14). The inlet channel (20) is formed between the third insert (6) and the rear mold (1).

10. The concealed horn-shaped glue injection mold according to claim 1, characterized in that: The rear mold (1) is provided with an ejector pin (21), and one end of the ejector pin (21) is provided with a function part (22) for lifting the product (8). The mold core (3) is provided with a movable groove (23) that connects to the molding cavity (9), and the function part (22) is movably disposed on the movable groove (23).

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