Submarine gate mechanism of mold

Abstract

The utility model discloses a submarine gate mechanism of a mold, which comprises a lower mold plate, supporting seats arranged on two sides of the top end of the lower mold plate, a base fixed on the top end of the lower mold plate between the supporting seats, a lower mold seat fixed on the top ends of the two supporting seats, a lower mold arranged on the top end of the lower mold seat, and an upper mold arranged above the lower mold, the bottom end of the upper mold makes contact with the top end of the lower mold, an upper mold plate is fixed to the top end of the upper mold, a pouring mold head is installed in the center of the top end of the upper mold plate, a protective cover is arranged at the top end of the upper mold plate on the outer side of the pouring mold head, a connecting belt is arranged on the outer wall of one side of the protective cover, and a cover plate is installed at the end, away from the protective cover, of the connecting belt. And an inserting ring is mounted at the edge position of the inner wall of the cover plate. According to the pouring gate mechanism, the phenomenon that external particulate matter flows into the upper die cavity and the lower die cavity to cause erosion is reduced, the production efficiency of products is improved when the pouring gate mechanism is used, and the convenience is improved when the pouring gate mechanism is maintained.

Description

Technical Field

[0001] This utility model relates to the field of plastic molding die technology, specifically to a submerged gate mechanism for a die. Background Technology

[0002] In plastic molding processes, the design of the gate plays a crucial role in the molding quality of plastic parts. Traditional gate types, such as direct gates, point gates, and side gates, have many shortcomings. Direct gates leave obvious marks on the front of the product, affecting its appearance. Point gates are suitable for small products and multi-point injection, but require high manufacturing precision. Although side gates are set on the side or slope of the mold parting surface, they usually require a long runner on the product, increasing post-processing steps. Therefore, developing a submerged gate mechanism for molds is particularly important.

[0003] Referring to the CN204136343U specification, a submerged gate mechanism for a mold includes a first and second template that cooperate to form a mold cavity, a submerged gate communicating with the mold cavity, a runner passing through the first template, one end of which communicates with the submerged gate and the other end of which communicates with the mold inlet, a runner ejector pin passing through the second template below the submerged gate, one end of which connects to the submerged gate and the other end of which connects to the runner ejector pin base plate, and a product ejector pin passing through the second template below the product inside the mold cavity, one end of which connects to the product and the other end of which connects to the product. The end is connected to the product ejector base plate, and the runner ejector base plate is set below the product ejector base plate. The runner ejector base plate and the product ejector base plate are spaced apart by a distance L, which is not less than 5 mm. At least part of the projection of the runner ejector base plate on the product ejector base plate falls on the product ejector base plate. As can be seen from the above, although this gate mechanism can be well applied, it is usually not convenient to shield and protect the mold inlet. This makes it easy for external particulate matter to enter the runner and cavity through the mold inlet, causing pollution, which often troubles people. Utility Model Content

[0004] The purpose of this utility model is to provide a submerged gate mechanism for molds, so as to solve the problem that although the gate mechanism mentioned in the background art can be well applied, it is usually not convenient to shield and protect the mold inlet, which makes it easy for external particulate matter to enter the runner and cavity through the mold inlet and cause pollution.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a submerged gate mechanism for a mold, comprising a lower mold plate, with support seats on both sides of the top of the lower mold plate, a base fixed to the top of the lower mold plate between the support seats, a lower mold base fixed to the top of the two support seats, a lower mold at the top of the lower mold base, an upper mold above the lower mold, the bottom of the upper mold touching the top of the lower mold, an upper mold plate fixed to the top of the upper mold, a casting head installed at the center of the top of the upper mold plate, the bottom of the casting head extending into the interior of the upper mold plate, a protective cover at the top of the upper mold plate outside the casting head, a connecting strip on one side of the outer wall of the protective cover, a cover plate installed at the end of the connecting strip away from the protective cover, and an insertion ring installed at the edge of the inner wall of the cover plate.

[0006] Preferably, the upper mold cavity is provided at the center of the bottom of the upper mold, and the lower mold cavity is provided at the center of the top of the lower mold. The upper and lower mold cavities are arranged to facilitate the casting and molding of the product.

[0007] Preferably, the upper mold has a transverse submerged flow channel inside, and the bottom end of the transverse submerged flow channel has an equally spaced longitudinal submerged flow channel. The bottom end of the longitudinal submerged flow channel is connected to the top end of the upper mold cavity. The transverse and longitudinal submerged flow channels are arranged to allow hot melt material to be poured into the interior of the upper and lower mold cavities.

[0008] Preferably, a casting pipe is fixed at the center of the bottom end of the casting mold head. The bottom end of the casting pipe extends into the interior of the upper mold and connects to the top of the transverse submerged flow channel. A sealing ring is installed inside the upper mold on the outer side of the lower end of the casting pipe. The casting pipe is designed to inject hot melt material into the transverse submerged flow channel.

[0009] Preferably, the casting mold head has positioning holes on both sides inside, and both ends of the positioning holes extend to the outside of the casting mold head. The positioning holes are provided to accommodate the locking bolts.

[0010] Preferably, a locking bolt is installed inside the positioning hole, and the bottom end of the locking bolt is threadedly connected to the top end of the upper template. The locking bolt is used to facilitate the disassembly and assembly of the casting mold head.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the submerged gate mechanism of the mold not only reduces the phenomenon of external particles flowing into the upper and lower mold cavities and causing erosion, but also improves the production efficiency of the product when using the gate mechanism, and improves the convenience of maintenance of the gate mechanism.

[0012] (1) By rotating the cover plate, the plug ring is inserted and fastened inside the protective cover, so that the cover plate is installed on the top of the protective cover. The protective cover and the cover plate can then shield and protect the casting mold head, thereby reducing the phenomenon of external particles flowing into the upper and lower mold cavities and causing erosion.

[0013] (2) Hot melt material is injected through the casting mold head, so that the material flows into the transverse submerged flow channel through the casting pipe and flows into the upper mold cavity and lower mold cavity evenly through the longitudinal submerged flow channel. This submerged gate design can effectively reduce the impact of the product gate marks on the appearance, reduce the post-processing process, and thus improve the production efficiency of the product when the gate mechanism is used.

[0014] (3) By tightening the locking bolt, the bottom end of the locking bolt is screwed out to the outside of the upper template. Then, the pouring mold head is pulled upward to remove the pouring pipe to the outside of the upper template, so as to disassemble the pouring pipe and the pouring mold head, thereby improving the convenience of maintenance of the pouring mechanism. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a frontal cross-sectional view of the present invention.

[0017] Figure 3 This is a bottom view of the casting pipe structure of this utility model;

[0018] Figure 4 This is a top view of the casting mold head of this utility model.

[0019] In the diagram: 1. Lower mold plate; 2. Support base; 3. Base; 4. Lower mold base; 5. Lower mold; 6. Upper mold; 7. Upper mold plate; 8. Casting mold head; 9. Protective cover; 10. Connecting strip; 11. Cover plate; 12. Insert ring; 13. Casting pipe; 14. Sealing ring; 15. Horizontal submerged runner; 16. Longitudinal submerged runner; 17. Upper mold cavity; 18. Lower mold cavity; 19. Positioning hole; 20. Locking bolt. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0021] Please see Figure 1-4An embodiment of this utility model provides a submerged gate mechanism for a mold, including a lower mold plate 1, with support seats 2 on both sides of the top of the lower mold plate 1, a base 3 fixed to the top of the lower mold plate 1 between the support seats 2, a lower mold base 4 fixed to the top of the two support seats 2, a lower mold 5 at the top of the lower mold base 4, an upper mold 6 above the lower mold 5, the bottom of the upper mold 6 touching the top of the lower mold 5, an upper mold cavity 17 at the center of the bottom of the upper mold 6, and a lower mold cavity 18 at the center of the top of the lower mold 5.

[0022] In use, the upper mold cavity 17 and the lower mold cavity 18 are set to enable the product to be cast and molded.

[0023] The upper mold 6 has a transverse submerged flow channel 15 inside, and the bottom end of the transverse submerged flow channel 15 has an equally spaced longitudinal submerged flow channel 16. The bottom end of the longitudinal submerged flow channel 16 is connected to the top end of the upper mold cavity 17.

[0024] In use, the horizontal submerged flow channel 15 and the vertical submerged flow channel 16 are set so that the hot melt material can be poured into the interior of the upper mold cavity 17 and the lower mold cavity 18.

[0025] A pouring pipe 13 is fixed at the center of the bottom end of the pouring mold head 8. The bottom end of the pouring pipe 13 extends into the interior of the upper mold 6 and is connected to the top of the transverse submerged flow channel 15. A sealing ring 14 is installed inside the upper mold 6 on the outer side of the lower end of the pouring pipe 13.

[0026] In use, the hot melt material is injected into the transverse submerged flow channel 15 by setting the pouring pipe 13;

[0027] The top of the upper mold 6 is fixed with an upper template 7. A casting mold head 8 is installed at the center of the top of the upper template 7. The bottom end of the casting mold head 8 extends into the interior of the upper template 7. Positioning holes 19 are provided on both sides inside the casting mold head 8. Both ends of the positioning holes 19 extend into the exterior of the casting mold head 8.

[0028] In use, the positioning hole 19 is provided to accommodate the locking bolt 20;

[0029] A locking bolt 20 is installed inside the positioning hole 19, and the bottom end of the locking bolt 20 is threadedly connected to the top end of the upper template 7.

[0030] During use, the locking bolts 20 are used to facilitate the disassembly and assembly of the casting mold head 8;

[0031] The top of the upper template 7 on the outside of the casting mold head 8 is provided with a protective cover 9. A connecting strip 10 is provided on the outer wall of one side of the protective cover 9. A cover plate 11 is installed at the end of the connecting strip 10 away from the protective cover 9. A plug ring 12 is installed at the edge of the inner wall of the cover plate 11.

[0032] In this embodiment, hot-melt material is first injected through the casting head 8, allowing it to flow through the casting pipe 13 into the transverse submerged runner 15. The material then flows evenly through the longitudinal submerged runner 16 into the upper mold cavity 17 and the lower mold cavity 18. This submerged gate design effectively reduces the impact of gate marks on the product's appearance, reduces post-processing steps, and improves production efficiency. Afterwards, by rotating the cover plate 11, the insertion ring 12 is inserted and fastened into the inside of the protective cover 9, thus covering and installing the cover plate 11 on the top of the protective cover 9. The protective cover 9 then works in conjunction with the cover plate 11. 1. The casting mold head 8 is shielded and protected to reduce the erosion caused by external particles flowing into the upper mold cavity 17 and lower mold cavity 18. If casting is required, the cover plate 11 is opened and closed at the top of the protective cover 9, and the hot melt material can be poured by the casting mold head 8. Finally, by tightening the locking bolt 20, the bottom end of the locking bolt 20 is screwed out to the outside of the upper mold plate 7. Then, the casting mold head 8 is pulled upward to remove the casting pipe 13 to the outside of the upper mold plate 7 for disassembly and maintenance of the casting pipe 13 and the casting mold head 8, thus completing the use of the gate mechanism.

Claims

1. A latent gate mechanism for a mold, characterized by: The system includes a lower template (1), with support seats (2) on both sides of the top of the lower template (1). A base (3) is fixed to the top of the lower template (1) between the support seats (2). A lower mold base (4) is fixed to the top of the two support seats (2). A lower mold (5) is provided at the top of the lower mold base (4). An upper mold (6) is provided above the lower mold (5). The bottom end of the upper mold (6) touches the top end of the lower mold (5). An upper template is fixed to the top end of the upper mold (6). (7) A casting mold head (8) is installed at the center of the top of the upper template (7). The bottom end of the casting mold head (8) extends into the interior of the upper template (7). A protective cover (9) is provided at the top of the upper template (7) outside the casting mold head (8). A connecting strip (10) is provided on the outer wall of one side of the protective cover (9). A cover plate (11) is installed at the end of the connecting strip (10) away from the protective cover (9). A plug ring (12) is installed at the edge of the inner wall of the cover plate (11).

2. A latent gate mechanism for a mold as defined in claim 1, wherein: The upper mold (6) has an upper mold cavity (17) at the center of its bottom, and the lower mold (5) has a lower mold cavity (18) at the center of its top.

3. A latent gate mechanism for a mold as defined in claim 2, wherein: The upper mold (6) has a transverse submerged flow channel (15) inside. The bottom end of the transverse submerged flow channel (15) has an equally spaced longitudinal submerged flow channel (16). The bottom end of the longitudinal submerged flow channel (16) is connected to the top end of the upper mold cavity (17).

4. A latent gate mechanism for a mold as defined in claim 3, wherein: A casting pipe (13) is fixed at the center of the bottom end of the casting mold head (8). The bottom end of the casting pipe (13) extends into the interior of the upper mold (6) and is connected to the top of the transverse submerged flow channel (15). A sealing ring (14) is installed inside the upper mold (6) on the outer side of the lower end of the casting pipe (13).

5. A latent gate mechanism for a mold as defined in claim 1, wherein: The casting mold (8) has positioning holes (19) on both sides inside, and both ends of the positioning holes (19) extend to the outside of the casting mold (8).

6. A latent gate mechanism for a mold as defined in claim 5, wherein: A locking bolt (20) is installed inside the positioning hole (19), and the bottom end of the locking bolt (20) is threadedly connected to the top end of the upper template (7).

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