Injection mold for a jewelry box

Abstract

The utility model relates to injection mold design field discloses a kind of injection mold of ornament storage box, including mould cover, movable mould base and fixed mould base, the mould cover bottom is equipped with material guide frame, the movable mould base is arranged in the material guide frame bottom, the fixed mould base is arranged in the movable mould base bottom, the fixed mould base bottom is equipped with stripping frame, the stripping frame below is equipped with mould base. The utility model can complete the injection processing of multiple groups of products at a time, and the second box body partition and two groups of casting frame are both set as smooth and smooth structure block, can effectively avoid the situation that product appears residual glue adhesion, and the first box body partition frame bottom and the second box body partition frame side frame are set corresponding each independent casting structure place and are equipped with the related radial depth of convex rib, so that the box body structure edge of product has the connecting groove of required specification respectively, facilitate to realize product assembly use, avoid secondary processing to product, reduce the damage caused to product.

Description

Technical Field

[0001] This utility model relates to the field of injection mold design technology, and more specifically, to an injection mold for a jewelry storage box. Background Technology

[0002] With a wide variety of jewelry styles and sizes available, the design requirements for jewelry storage boxes are becoming increasingly diverse. More and more storage boxes, whether main bodies or accessories, feature various groove structures. However, existing injection molds struggle to simultaneously mold multiple groove structures in the plastic part during the injection molding process, requiring subsequent secondary finishing. Multiple finishing processes result in poor surface quality and uniformity of the high-gloss finish, leading to low yield and production efficiency. Furthermore, existing storage box assembly panels often exhibit residual adhesive or air bubbles, affecting the box's aesthetics. Therefore, this paper proposes an injection mold for jewelry storage boxes. Summary of the Invention

[0003] (a) Technical problems to be solved

[0004] To address at least one of the aforementioned problems, this utility model first provides an injection mold for a jewelry storage box, which can complete the injection molding of multiple products at once, enabling the products to be used independently or in assembly, removing air bubbles and residual adhesive, and improving the production efficiency of injection molded products.

[0005] (II) Technical Solution

[0006] To solve the aforementioned technical problem, this utility model provides an injection mold for a jewelry storage box, including a mold cover, a moving mold base, and a fixed mold base. The bottom of the mold cover is provided with a guide frame, the moving mold base is located at the bottom of the guide frame, the fixed mold base is located at the bottom of the moving mold base, the bottom of the fixed mold base is provided with a demolding frame, and a mold base is located below the demolding frame.

[0007] In a preferred embodiment of this utility model, the material guide frame is provided with a sprue plate in the center, the sprue plate is connected to the flow divider, the flow divider is provided with multiple sets of material guide pipes, the material guide pipes extend into the moving mold base respectively, the flow divider is provided with a limiting heat conduction frame on the outside, the rear end of the material guide frame is provided with a DC fan, and the left and right ends of the inner cavity of the material guide frame are respectively provided with a set of through slots, and the output ports of the two sets of through slots are provided as vents.

[0008] Furthermore, the edge of the mold cover panel is provided with a plurality of first connecting frames, the first connecting frames pass through the guide frame and are fixedly connected to the moving mold base, and the front and rear edges of the guide frame and the moving mold base are respectively provided with first limiting rods.

[0009] Furthermore, the moving mold base is provided with positioning holes at its four corners, and the left and right sides of the moving mold base are respectively provided with first connecting grooves corresponding to the first connecting frame. The bottom of the moving mold base is provided with a moving mold core, and the moving mold core is provided with a first casting frame. The first casting frame groove is provided with a first box partition frame.

[0010] Furthermore, a first heat exchange frame is provided on the outer side of the moving mold core, and a first cold water coil is provided in the inner cavity of the moving mold base corresponding to the first heat exchange frame.

[0011] Furthermore, the fixed mold base is provided with a set of fixed ends at each of its four corners, and a set of movable sleeves is provided on each of the fixed ends. A connecting rod is provided inside each of the movable sleeves. A fixed mold core is provided on the panel of the fixed mold base. A second casting frame is provided on the fixed mold core. A second box partition frame is provided inside the second casting frame.

[0012] Furthermore, the fixed mold core is provided with several overflow grooves along its edge, and each overflow groove is provided with a set of movable discharge racks.

[0013] Furthermore, a second heat exchange frame is provided at the outer end of the fixed mold core, and a second cold water coil is provided in the inner cavity of the fixed mold core corresponding to the second heat exchange frame.

[0014] Furthermore, the mold base is provided with a bottom needle plate, a top needle plate is provided above the bottom needle plate, a first leg is provided at the left end of the mold base, and a second leg is provided at the right end of the mold base.

[0015] (III) Beneficial Effects

[0016] This utility model provides an injection mold for a jewelry storage box. It features two sets of box-body partition frames, calculated and tightly arranged, on the moving mold base and fixed mold base. These partition frames, in conjunction with the second box-body partition frame, isolate the outer casting cavity, allowing multiple products to be injected into the outer casting cavity simultaneously. Smooth, flowing structural blocks are designed between the second box-body partition frame and the two casting frames to effectively prevent residual glue from adhering to the product. Protruding ridges of corresponding diameter and depth are provided at the bottom of the first box-body partition frame and the side frame of the second box-body partition frame for each independent casting structure, ensuring that the edges of the product's box structure have connecting grooves of the required specifications. This facilitates product assembly and avoids secondary processing, reducing damage to the product. A low-frequency vibration frame generates low-frequency vibrations during injection molding, which compacts the molten plastic, dislodging air bubbles and preventing product defects. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the injection mold according to an embodiment of the present utility model;

[0018] Figure 2This is a schematic diagram showing the arrangement of the connecting frames of the injection mold according to an embodiment of the present utility model;

[0019] Figure 3 This is a schematic diagram of the material guide frame of the injection mold according to an embodiment of the present utility model;

[0020] Figure 4 This is a top view of the material guide frame of the injection mold according to an embodiment of the present utility model;

[0021] Figure 5 This is an output view of the material guide tube of the injection mold according to an embodiment of the present utility model;

[0022] Figure 6 This is a schematic diagram showing the arrangement of the moving mold base of the injection mold according to an embodiment of the present utility model;

[0023] Figure 7 This is a schematic diagram of the fixed mold base of the injection mold according to an embodiment of the present utility model;

[0024] Figure 8 This is a schematic diagram of the disassembled structure of the fixed mold base of the injection mold according to an embodiment of the present utility model;

[0025] Figure 9 This is a schematic diagram of the disassembled structure of the mold base of the injection mold according to an embodiment of the present utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1 is the mold cover, 2 is the guide frame, 21 is the sprue plate, 22 is the flow divider, 23 is the guide pipe, 24 is the limiting heat conduction frame, 25 is the first connecting frame, 26 is the second connecting frame, 27 is the first limiting rod, 28 is the DC fan, 29 is the vent, 3 is the moving mold base, 31 is the positioning hole, 32 is the first connecting groove, 33 is the first heat exchange frame, 34 is the moving mold core, 35 is the first box body partition frame, 4 is the fixed mold base, 41 is the overflow groove, 42 is the movable discharge frame, 43 is the fixed end, 44 is the movable sleeve, 45 is the connecting rod, 46 is the fixed mold core, 47 is the second box body partition frame, 5 is the demolding frame, 6 is the mold base, 61 is the bottom pin plate, 62 is the top pin plate, 63 is the first leg, 64 is the second leg, 65 is the positioning bracket, 66 is the auxiliary bracket, 67 is the demolding push rod, and 68 is the fixed support pin. Detailed Implementation

[0028] 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.

[0029] See Figures 1 to 6This utility model provides an injection mold for a jewelry storage box, including a mold cover 1, a movable mold base 3, and a fixed mold base 4. The bottom of the mold cover 1 is provided with a guide frame 2, the movable mold base 3 is located at the bottom of the guide frame 2, and the fixed mold base 4 is located at the bottom of the movable mold base 3. The bottom of the fixed mold base 4 is provided with a demolding frame 5, and a mold base 6 is located below the demolding frame 5. The injection mold establishes a support for the demolding frame 5 through the mold base 6. The top panel of the demolding frame 5 is in contact with the fixed mold base 4. Based on the support for the fixed mold base 4, after the workpiece is formed, it is convenient for the demolding push rod 67 to pass through the demolding frame 5 to push the workpiece out of the fixed mold base 4, thereby realizing the demolding process of the workpiece. When the fixed mold base 4 and the movable mold base 3 are closed, the plastic melt flowing into the guide frame 2 is molded. The mold cover 1 limits the installation of the guide frame 2 and the movable mold base 3, which facilitates the connection with the telescopic device, controls the movable mold base 3 and the fixed mold base 4 to complete the mold closing process, and completes the die casting process of the plastic injected into the mold cavity.

[0030] See Figures 3 to 5 The guide frame 2 has a sprue plate 21 in the center, which is connected to the flow divider 22. The flow divider 22 has multiple sets of guide pipes 23, which extend into the moving mold base 3. The flow divider 22 has a limiting heat conduction frame 24 on the outside. The rear end of the guide frame 2 has a DC fan 28. The left and right ends of the inner cavity of the guide frame 2 have a set of through slots, and the output ports of the two sets of through slots are set as vent ports 29. The sprue plate 21 extends from the guide frame 2 and is embedded in the center of the mold cover 1 panel. Molten injection is added through the sprue plate 21. The molten injection flows in the guide channel in the flow divider 22 and is sent to the moving mold core 34 at the corresponding position in the moving mold base 3 through the discharge pipes set in the multiple sets of guide pipes 23, thus completing the feeding process required for product injection molding.

[0031] The flow divider 22 is designed with an irregularly uniformly distributed shape, which effectively extends the length of the material guide channel and improves its heat dissipation efficiency. The limiting heat conduction frame 24 is set around the edge of the flow divider 22, which can conduct the heat carried by the injection molten liquid to the limiting heat conduction frame 24. The DC fan 28 draws in the outside air, and the air flows in the channel, which can reduce the temperature of the limiting heat conduction frame 24, so that the limiting heat conduction frame 24 can continuously cool the flow divider 22. The airflow after heat exchange is discharged from the vent 29, so that the DC fan 28 can continuously provide cooling for the flow divider 22.

[0032] See Figure 2The edge of the mold cover 1 panel is provided with several first connecting brackets 25. The first connecting brackets 25 pass through the guide bracket 2 and are fixedly connected to the moving mold base 3. Several sets of second connecting brackets 26 are provided at the connection points of the left and right sides of the mold cover 1 and the guide bracket 2. First limiting rods 27 are provided at the connection points of the front and rear sides of the guide bracket 2 and the moving mold base 3. The edge of the mold cover 1 panel is provided with the first connecting brackets 25 to establish the installation of the guide bracket 2 and the moving mold base 3. The left and right sides of the mold cover 1 are also provided with several sets of second connecting brackets 26 to enhance the connection strength with the guide bracket 2. The front and rear sides of the guide bracket 2 are fixedly connected to the front and rear end frames of the moving mold base 3 through the first limiting rods 27. The all-round connection relationship makes the mold cover 1, the guide bracket 2 and the moving mold base 3 form a whole, realizing the assembly and control of the moving mold component.

[0033] See Figure 6 The moving mold base 3 has positioning holes 31 at its four corners. The left and right sides of the moving mold base 3 are respectively provided with first connecting grooves 32 corresponding to the first connecting frame 25. The bottom of the moving mold base 3 is provided with a moving mold core 34. The moving mold core 34 is provided with a first casting frame. The first casting frame groove is provided with a first box partition frame 35. The four corners of the moving mold base 3 are fixed to the connection of a movable sleeve 44 through the positioning holes 31. During the mold opening of the moving mold base 3 and the fixed mold base 4, the movable sleeve 44 moves with the moving mold base 3 and disconnects from the connecting rod 45. When the moving mold base 3 and the fixed mold base 4 are closed, the movable sleeve 44 returns to its original position with the moving mold base 3, is embedded in the fixed end 43 and sleeved on the connecting rod 45.

[0034] The moving mold base 3 is provided with a first connecting groove 32 to establish a fixed connection with the first connecting frame 25. The moving mold core 34 is aligned with the fixed mold core 46. The first casting frame forms multiple independent casting structures through the first box partition frame 35. The cavity between the first casting frame and the second casting frame provides a space for the injection molten liquid. The bottom of the first box partition frame 35 and the side frame of the second box partition frame 47 are provided with convex ridges of relevant diameter and depth corresponding to each independent casting structure, so that the edges of the box structure of the product have connecting grooves of the required specifications, which facilitates the assembly and use of the product.

[0035] The outer side of the moving mold core 34 is provided with a first heat exchange frame 33, and the inner cavity of the moving mold base 3 is provided with a first cold water coil corresponding to the first heat exchange frame 33. The first heat exchange frame 33 can absorb the heat of the shell of the moving mold core 34, and the first cold water coil has cooling water circulating, which can effectively reduce the heat of the injection molten liquid in the moving mold core 34.

[0036] See Figure 7 and Figure 8The fixed mold base 4 has a set of fixed ends 43 at each of its four corners. Each fixed end 43 has a set of movable sleeves 44. Each movable sleeve 44 has a connecting rod 45 inside. The fixed mold base 4 has a fixed mold core 46 on its panel. The fixed mold core 46 has a second casting frame. The second casting frame has a second box partition frame 47 inside. The fixed mold base 4 is connected to the four corners of the moving mold base 3 by setting the fixed ends 43. The movable sleeves 44 move with the moving mold base 3, which can change the specific connection relationship between the movable sleeves 44 and the fixed ends 43. The bottom of the connecting rods 45 is fixed to the connection with the demolding frame 5. During the mold closing period, the connecting rods 45 are sleeved in the movable sleeves 44. During the mold opening period, the connecting rods 45 are independently set in the fixed ends 43.

[0037] The fixed mold core 46 is equipped with a second casting frame to form an outer casting cavity in conjunction with the first casting frame. A second box partition frame 47 is set in the second casting frame, which can divide the outer casting cavity into independent regular cavities, so that the injection mold can form multiple sets of products at one time. The outer casting cavity, the first box partition frame 35 and the second box partition frame 47 are all designed by calculation and division, so that the injection molded products can be assembled to form independent or matching jewelry storage boxes.

[0038] The fixed mold core 46 has several overflow grooves 41 along its edge. Each overflow groove 41 is equipped with a set of movable discharge racks 42. During injection molding, if the molten injection liquid in the casting cavity overflows, it can flow out from the overflow grooves 41 at the corresponding positions along the edge of the fixed mold core 46. The movable discharge racks 42 can release the molten injection liquid, preventing it from cooling and accumulating, which would affect the normal use of the overflow grooves 41 and ensure the quality of the injection molded products.

[0039] The outer end of the fixed mold core 46 is provided with a second heat exchange frame, and the inner cavity of the fixed mold core 46 is provided with a second cold water coil corresponding to the second heat exchange frame. The second heat exchange frame can absorb the heat of the shell of the fixed mold core 46, and the second cold water coil has cooling water circulating, which can effectively reduce the heat of the injection molten liquid in the fixed mold core 46.

[0040] See Figure 9 The mold base 6 is provided with a bottom pin plate 61, and a top pin plate 62 is provided above the bottom pin plate 61. The left end of the mold base 6 is provided with a first leg 63, and the right end of the mold base 6 is provided with a second leg 64. The bottom of the demolding frame 5 is connected to the mold base 6 by the first leg 63 and the second leg 64. The mold base 6 provides support for the die-casting mold through the two sets of legs. The mold base 6 provides a connection and support device for the demolding frame 5 through the bottom pin plate 61 and the top pin plate 62, which enhances the support stability of the demolding frame 5. Several demolding push rods 67 are provided on the top pin plate 62. The demolding push rods 67 pass through the demolding frame 5 and extend into the fixed mold base 4. After the injection molding operation is completed, the demolding push rods 67 are controlled to push the product out of the fixed mold base 4, thus completing the product demolding.

[0041] The mold base 6 is provided with several sets of fixed support pins 68. Each set of fixed support pins 68 passes through the bottom pin plate 61 and the top pin plate 62 and abuts against the demolding frame 5. The bottom pin plate 61 is provided with several auxiliary brackets 66. The auxiliary brackets 66 pass through the top pin plate 62 and abut against the demolding frame 5. At the corner of the bottom pin plate 61, there is a set of positioning brackets 65. The positioning brackets 65 pass through the top pin plate 62 and the demolding frame 5 and extend into the fixed mold base 4, making the fixed mold base 4, the demolding frame 5 and the mold base 6 a fixed mold integral structure. The mold base 6 abuts against the demolding frame 5 by setting fixed support pins 68. The bottom pin plate 61 abuts against the inner side of the demolding frame 5 by several auxiliary brackets 66, which enhances the connection strength of the demolding frame 5. The top pin plate 62 is not fixedly connected to the positioning brackets 65, the auxiliary brackets 66 and the fixed support pins 68. After the injection molding operation is completed, pushing the top pin plate 62 will change the position of the demolding push rod 67 and complete the product demolding.

[0042] The first leg 63 and the second leg 64 are each equipped with an independent low-frequency vibration frame. The low-frequency vibration frame can generate low-frequency vibration during the injection molding process, which can compact the injection molten liquid and shake out the air bubbles carried by the injection molten liquid to avoid product defects. The bottom frame of the fixed support pin 68 is equipped with an independent built-in elastic frame, which can reduce the negative impact of mold opening, mold closing and low-frequency vibration on the mold base 6.

[0043] The present invention provides an injection mold for a jewelry storage box. Based on the design requirements of existing small jewelry storage boxes, a first casting frame is set in the moving mold base 3, and a second casting frame is set in the fixed mold base 4. This allows for the injection molding of multiple jewelry storage boxes of different specifications that can be used independently or assembled together in one go. The present invention also provides a guide tube 23 in the guide frame 2 that can inject glue into the casting cavity from all directions, ensuring the stability of the injection molding operation. Combined with air cooling and water cooling devices, the work efficiency of the injection molding operation can be effectively improved.

[0044] Although the disclosure is as stated above, the scope of protection of this disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the protection scope of this utility model.

Claims

1. An injection mold for a jewelry storage box, characterized in that, The mold includes a mold cover (1), a moving mold base (3) and a fixed mold base (4). The bottom of the mold cover (1) is provided with a guide frame (2). The moving mold base (3) is located at the bottom of the guide frame (2). The fixed mold base (4) is located at the bottom of the moving mold base (3). The bottom of the fixed mold base (4) is provided with a demolding frame (5). Below the demolding frame (5) is a mold base (6). The guide frame (2) has a sprue plate (21) in the center, which is connected to the flow divider (22). The flow divider (22) has multiple sets of guide pipes (23), which extend into the moving mold base (3). The flow divider (22) has a limiting heat conduction frame (24) on its outer side. The guide frame (2) has a DC fan (28) at its rear end. The guide frame (2) has a set of through slots at its left and right ends, and the output ports of the two sets of through slots are set as vent ports (29).

2. The injection mold for a jewelry storage box according to claim 1, characterized in that, The mold cover (1) panel edge is provided with a plurality of first connecting frames (25), the first connecting frames (25) pass through the guide frame (2) and are fixedly connected to the moving mold base (3), and the guide frame (2) and the moving mold base (3) are respectively provided with first limiting rods (27) at the connection between the front and rear edges of the guide frame (2) and the moving mold base (3).

3. The injection mold for a jewelry storage box according to claim 2, characterized in that, The moving mold base (3) is provided with positioning holes (31) at its four corners. The left and right sides of the moving mold base (3) are provided with first connecting grooves (32) corresponding to the first connecting frame (25). The bottom of the moving mold base (3) is provided with a moving mold core (34). The moving mold core (34) is provided with a first casting frame. The first casting frame groove is provided with a first box partition frame (35).

4. The injection mold for a jewelry storage box according to claim 3, characterized in that, The moving mold core (34) is provided with a first heat exchange frame (33) on its outer side, and the moving mold base (3) is provided with a first cold water coil at the location corresponding to the first heat exchange frame (33).

5. The injection mold for a jewelry storage box according to claim 1, characterized in that, The fixed mold base (4) is provided with a set of fixed ends (43) at each of its four corners. A set of movable sleeves (44) is provided on each of the fixed ends (43). A connecting rod (45) is provided inside each of the movable sleeves (44). A fixed mold core (46) is provided on the panel of the fixed mold base (4). A second casting frame is provided on the fixed mold core (46). A second box partition frame (47) is provided inside the second casting frame.

6. The injection mold for a jewelry storage box according to claim 5, characterized in that, The fixed mold core (46) has several overflow grooves (41) along its edge, and each overflow groove (41) is provided with a set of movable discharge racks (42).

7. The injection mold for a jewelry storage box according to claim 5, characterized in that, The outer end of the fixed mold core (46) is provided with a second heat exchange frame, and the inner cavity of the fixed mold core (46) is provided with a second cold water coil corresponding to the second heat exchange frame.

8. The injection mold for a jewelry storage box according to claim 1, characterized in that, The mold base (6) is provided with a bottom needle plate (61), and a top needle plate (62) is provided above the bottom needle plate (61). The mold base (6) is provided with a first leg (63) on the left end and a second leg (64) on the right end.

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