Hardware production injection molding mold

Abstract

The utility model provides a hardware production injection moulding mould, including bottom mould, upper mould, damper, side frame, upper injection moulding template and middle layer board, upper mould is connected in the upper end of bottom mould, and damper fixedly connected in the upper end of bottom mould has fixed peg between upper mould and damper with screw thread connection. Side frame fixedly connected in the upper end of bottom mould, and the upper end of side frame is connected with lower injection moulding template through bolt screw thread connection, and upper injection moulding template is connected on lower injection moulding template. Middle layer board is connected in the lower end of upper injection moulding template, and the upper end of middle layer board is connected with the backing pad, and the upper end of backing pad is connected with the connecting plate, and the connecting plate is connected with upper mould through bolt screw thread connection. The utility model has realized the accurate orientation and the buffer shock attenuation function in the opening and closing process of mould, has improved the adhesion precision and the repeat positioning ability between upper and lower injection moulding template, has improved the dimensional accuracy and the surface quality of injection moulding product, has prolonged the service life of mould.

Description

Technical Field

[0001] This utility model belongs to the field of injection molding technology in hardware product manufacturing, specifically relating to an injection molding mold for hardware product manufacturing. Background Technology

[0002] In modern industry, hardware products are widely used in various fields, such as electronic device housings, automotive parts, and household appliances. To improve the functionality and aesthetics of hardware products, it is often necessary to coat their surfaces with plastic or embed plastic components. Injection molding, due to its high efficiency, precision, and cost-effectiveness, has become one of the important means to achieve this goal.

[0003] Traditional molds are prone to misalignment during opening and closing, resulting in low dimensional accuracy and affecting product quality. The lack of an effective guiding mechanism during opening and closing exacerbates wear and shortens mold lifespan. Molded metal products often adhere to the inside of the mold, making them difficult to remove, increasing the need for manual intervention and reducing production efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide an injection molding mold for the production of hardware products, which aims to solve the problems of difficult demolding, inconvenient maintenance and poor cushioning and shock absorption in the existing technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An injection molding mold for manufacturing hardware products, comprising:

[0007] Bottom mold;

[0008] An upper mold, which is connected to the upper end of the bottom mold;

[0009] A damper is fixedly connected to the upper end of the bottom mold, and its output end is connected to the lower end of the upper mold. A fixing bolt is threadedly connected between the upper mold and the damper.

[0010] A side frame is fixedly connected to the upper end of the bottom mold, and the upper end of the side frame is connected to the lower injection molding template by bolts and threads.

[0011] An upper injection molding template, which is connected to a lower injection molding template;

[0012] The middle layer plate is connected to the lower end of the upper injection mold. A pad is connected to the upper end of the middle layer plate, and a connecting plate is connected to the upper end of the pad. The connecting plate is connected to the upper mold by bolts and threads.

[0013] As a preferred embodiment of this utility model, the upper four corners of the connecting plate are provided with sliding grooves, and the pad also includes four brackets, which are slidably sleeved and connected to the pad.

[0014] In a preferred embodiment of this utility model, the upper ends of the four brackets are respectively matched with the sliding grooves on the connecting plate.

[0015] As a preferred embodiment of this utility model, the upper four corners of the middle layer plate are provided with sliding grooves, and the four sliding grooves match the lower ends of the four supports.

[0016] As a preferred embodiment of this utility model, four first sleeve rods are slidably connected on the middle layer plate. The four first sleeve rods pass through the upper and lower ends of the middle layer plate, with the upper end matching the pad and the lower end extending downward.

[0017] In a preferred embodiment of this utility model, a second spring is sleeved and connected between the four first sleeve rods and the middle layer plate.

[0018] As a preferred embodiment of this utility model, four second sleeve rods are slidably connected to the upper injection molding template, and the lower ends of the four second sleeve rods are fixedly connected to pads.

[0019] As a preferred embodiment of this utility model, the four gaskets are matched with the lower injection molding template, and the four second sleeve rods are matched with the middle layer plate.

[0020] In a preferred embodiment of this utility model, the upper end of the upper mold is connected to an injection port by a bolt thread, and the lower end of the injection port is connected to an injection pipe. The injection pipe passes through the connecting plate, the pad plate, the middle plate and extends to the lower end of the upper injection mold.

[0021] In a preferred embodiment of this utility model, the connecting plate, the pad plate, and the middle layer plate have the same length and width.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. This utility model achieves precise guidance and shock absorption during the opening and closing of the mold through components such as the first set of rods and the second spring. The connecting plate, pad plate, and middle plate adopt the same length and width dimensions, which further enhances the mechanical balance and assembly consistency between the components. At the same time, it can effectively avoid problems such as template misalignment and accelerated wear caused by movement offset and excessive impact in traditional molds. This improves the fitting accuracy and repeatability of the upper and lower injection molds, enhances the dimensional accuracy and surface quality of the injection molded products, and extends the service life of the mold.

[0024] 2. This utility model, through the second set of rods and pads installed on the upper injection mold, assists in ejecting the molded product during mold opening, reducing product adhesion or mold jamming, and significantly improving demolding efficiency. Simultaneously, the injection port and injection pipe adopt a detachable threaded connection and a multi-level structure, facilitating the cleaning of residual material and preventing blockages. Furthermore, the mold as a whole adopts a modular design, with components assembled through sliding sleeves and bolt connections, facilitating quick replacement, cleaning, and maintenance, reducing equipment maintenance costs and downtime, and improving production continuity and operational flexibility. Attached Figure Description

[0025] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0026] Figure 1 This is a schematic diagram of the overall structure of the injection molding mold for manufacturing hardware products according to this utility model;

[0027] Figure 2 An exploded view of the injection molding mold for manufacturing hardware products according to this utility model;

[0028] Figure 3 This utility model Figure 2 Exploded view of the upper middle part of the mold;

[0029] Figure 4 This utility model Figure 2 Exploded view of the bottom part of the mold.

[0030] The figure shows: 1. Bottom mold; 101. Damper; 102. First spring; 2. Upper mold; 201. Fixing bolt; 202. Injection port; 203. Connecting plate; 204. Pad plate; 205. Bracket; 206. Middle plate; 207. Injection pipe; 208. First sleeve rod; 209. Second spring; 3. Side frame; 301. Lower injection mold; 4. Upper injection mold; 401. Second sleeve rod; 402. Pad. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figures 1 to 4As shown, this utility model embodiment provides an injection molding mold for manufacturing hardware products, including a bottom mold 1, an upper mold 2, a damper 101, a side frame 3, an upper injection mold 4, and a middle plate 206. The upper mold 2 is connected to the upper end of the bottom mold 1, the damper 101 is fixedly connected to the upper end of the bottom mold 1, and its output end is connected to the lower end of the upper mold 2. A fixing bolt 201 is threadedly connected between the upper mold 2 and the damper 101. The side frame 3 is fixedly connected to the upper end of the bottom mold 1, and the upper end of the side frame 3 is threadedly connected to the lower injection mold 301 by bolts. The upper injection mold 4 is connected to the lower injection mold 301. The middle plate 206 is connected to the lower end of the upper injection mold 4, and a pad 204 is connected to the upper end of the middle plate 206. A connecting plate 203 is connected to the upper end of the pad 204, and the connecting plate 203 is threadedly connected to the upper mold 2 by bolts.

[0033] In this specific embodiment, the bottom mold 1 serves as the supporting foundation for the entire mold, used to fix the lower structure and support other components. The upper mold 2 is located above the bottom mold 1, cooperating with the bottom mold to realize the opening and closing of the mold; its lower end is connected to the bottom mold 1 through a damper 101, which plays a role in buffering and shock absorption. One end of the damper 101 is fixed to the bottom mold 1, and the other end is connected to the upper mold 2, used to control the speed and stability of the upper mold during the lifting process, preventing impact damage to the mold or affecting the molding quality. The fixing bolt 201 is threadedly connected to the upper mold 2 and the damper 101, used to fix the position and enhance the connection stability. The side frame 3 plays a supporting and positioning role. The lower injection mold plate 301 is bolted to the top of the side frame 3, forming part of the injection cavity, and cooperates with the upper injection mold plate 4 to complete the formation of the mold cavity. The upper injection mold plate 4 is set above the lower injection mold plate 301, together forming the injection cavity, used to inject high-temperature molten plastic material to form the outer shell or accessories of hardware products. The middle layer plate 206 is connected below the upper injection mold 4, serving as an intermediate support structure to ensure a stable connection between the upper injection mold 4 and the middle layer structure. The pad plate 204 is located between the middle layer plate 206 and the connecting plate 203, acting as a buffer and adjusting height to ensure assembly accuracy. The connecting plate 203 is bolted to the upper mold 2, serving as a key component for transmitting pressure and movement.

[0034] Please see Figures 1 to 4As shown, the connecting plate 203 has sliding grooves at its four upper corners. The pad 204 also includes four supports 205, which are slidably connected to the pad 204, and their upper ends match the sliding grooves on the connecting plate 203. The sliding grooves at the four corners of the connecting plate 203 form a guiding fit with the upper ends of the supports 205. During the mold opening and closing process, the sliding connection between the sliding grooves and the supports guides the pad 204 and the middle layer plate 206 to move along a fixed track, preventing offset or misalignment. This helps improve the positioning accuracy between the mold plates, thereby improving the consistency of injection molding quality. The supports 205 and the sliding grooves play a dual role of guiding and supporting, forming a stable linkage structure between the connecting plate 203, the pad 204, and the middle layer plate 206. During the lifting and lowering of the upper mold 2, this structure effectively reduces vibration and shaking, enhancing the overall stability of operation.

[0035] Please see Figures 1 to 4 As shown, the upper four corners of the middle layer plate 206 are provided with sliding grooves, which match the lower ends of the four supports 205. Four first sleeve rods 208 are slidably sleeved on the middle layer plate 206, passing through the upper and lower ends of the middle layer plate 206. The upper ends match the pad plate 204, and the lower ends extend downward. A second spring 209 is sleeved between the four first sleeve rods 208 and the middle layer plate 206. In this specific embodiment, the four first sleeve rods 208 pass through the upper and lower ends of the middle layer plate 206, with the upper ends connected to the pad plate 204 and the lower ends extending downward. The second spring 209 is sleeved between the first sleeve rods 208 and the middle layer plate 206, forming a buffer and shock absorption system. When the mold closes, the pad plate 204 is pressed downward, causing the first sleeve rods 208 to compress the spring 209, achieving flexible contact and avoiding damage to the mold from rigid impact. During mold opening, the rebound force of spring 209 pushes the middle layer plate 206 and its underlying structure, such as the upper injection mold plate 4, downwards, assisting in the demolding operation. The sliding engagement between the first rod 208 and the middle layer plate 206 makes the entire demolding process smoother, reducing problems such as product jamming and deformation. The sliding groove on the middle layer plate 206 is slidably connected to the lower end of the bracket 205, further enhancing the relative motion accuracy between the pad plate 204 and the middle layer plate 206. Combined with the guiding effect of the first rod 208, this ensures the verticality and synchronicity of the entire middle layer structure during mold opening and closing, preventing displacement or jamming.

[0036] Please see Figures 1 to 4As shown, four second sleeve rods 401 are slidably connected to the upper injection mold 4. The lower ends of the four second sleeve rods 401 are fixedly connected to pads 402. The four pads 402 match the lower injection mold 301, and the four second sleeve rods 401 match the middle layer plate 206. In this specific embodiment, the four second sleeve rods 401 penetrate downwards from the top of the upper injection mold 4 and form a sliding fit with the middle layer plate 206, ensuring that the upper injection mold 4 moves in a fixed direction during lifting and lowering. The guiding effect between the sleeve rods and the middle layer plate effectively prevents the mold from shifting or tilting during closing, thereby improving the mold closing accuracy. The pads 402 connected to the lower ends of the second sleeve rods 401 are tightly attached to the upper part of the lower injection mold 301, providing support and limiting function when the mold opens. After the mold opens, the pads 402 can assist in ejecting or separating the molded metal products, reducing product adhesion, mold jamming, and other problems, and improving production efficiency. Together with the first rod 208 and spring 209 on the middle plate 206, the second rod 401 and the pad 402 form a multi-stage linkage buffer system. At the moment the mold closes, each component absorbs the impact force through spring buffering, reducing the hard collision between molds and extending the service life of the equipment.

[0037] Please see Figures 1 to 4 As shown, the upper end of the upper mold 2 is connected to an injection port 202 via bolt threads. The lower end of the injection port 202 is connected to an injection pipe 207, which passes through the connecting plate 203, the pad plate 204, and the middle layer plate 206 to the lower end of the upper injection mold 4. In this specific embodiment, the injection pipe 207 penetrates multiple layers, creating a continuous channel from the upper mold to the injection cavity, ensuring that the molten material can flow into the mold cavity quickly and evenly. The injection port 202 is installed via bolt connections, facilitating disassembly, replacement, or cleaning of accumulated material or impurities within the injection pipe 207. The connecting plate 203, the pad plate 204, and the middle layer plate 206 have equal length and width. In this embodiment, the three are identical in size, maintaining a high degree of symmetry in the spatial layout of the entire middle layer support structure. During mold closing or injection, pressure can be evenly distributed among the components, effectively avoiding stress concentration or uneven loading caused by dimensional differences.

[0038] The working principle and usage process of this utility model are as follows: First, fix the bottom mold 1 on the injection molding machine workbench. Connect the upper mold 2 to the hydraulic cylinder of the injection molding machine, and ensure that the damper 101 is firmly connected to the bottom mold 1. Use the fixing bolt 201 to lock the upper mold 2 and the damper 101 to ensure that they do not loosen during the movement. Install the lower injection molding template 301 on the top of the side frame 3 with bolts. Assemble the upper injection molding template 4 with the middle layer plate 206, the pad plate 204, and the connecting plate 203 in sequence, ensuring that the length and width of each component are consistent. Ensure that the slide groove and the guide structure such as the bracket 205 and the first sleeve rod 208 are well matched. Install the second sleeve rod 401 and the pad 402, and ensure that they match and fit with the lower injection molding template 301. Install the injection port 202 on the top of the upper mold 2 and tighten it with bolts. The injection pipe 207 flows from... The injection port 202 extends downward through the connecting plate 203, pad 204, and middle plate 206 to a position near the lower end of the upper injection mold 4, ensuring unobstructed flow. The injection molding machine is started, driving the upper mold 2 downward, which in turn causes the connecting plate 203, pad 204, and middle plate 206 to descend synchronously. The damper 101 acts as a buffer to prevent impact damage to the mold. The first sleeve rod 208 and the second sleeve rod 401 slide between the middle plate 206 and the upper injection mold 4, respectively, to ensure smooth movement. Molten plastic enters the injection pipe 207 through the injection port 202 and finally flows into the cavity between the upper and lower injection molds 301 and 4. The pad sleeve 402 provides auxiliary support to ensure that the mold is tightly closed, preventing flash or leakage. After the material is filled, pressure is maintained for a period of time to obtain hardware products with stable dimensions and good surface quality.

[0039] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An injection molding mold for manufacturing hardware products, characterized in that, include: Bottom mold (1); Upper mold (2), which is connected to the upper end of bottom mold (1); The damper (101) is fixedly connected to the upper end of the bottom mold (1) and its output end is connected to the lower end of the upper mold (2). A fixing bolt (201) is threaded between the upper mold (2) and the damper (101). Side frame (3), the side frame (3) is fixedly connected to the upper end of the bottom mold (1), and the upper end of the side frame (3) is connected to the lower injection molding template (301) by bolt thread; Upper injection molding template (4), which is connected to the lower injection molding template (301); The middle layer plate (206) is connected to the lower end of the upper injection mold (4). The upper end of the middle layer plate (206) is connected to a pad plate (204). The upper end of the pad plate (204) is connected to a connecting plate (203). The connecting plate (203) is connected to the upper mold (2) by bolt threads.

2. The injection molding die for manufacturing hardware products according to claim 1, characterized in that: The connecting plate (203) has sliding grooves at the four corners of its upper end. The pad (204) also includes four brackets (205). The four brackets (205) are slidably connected to the pad (204), and the upper ends of the four brackets (205) are respectively matched with the sliding grooves on the connecting plate (203).

3. The injection molding die for manufacturing hardware products according to claim 1, characterized in that: The upper four corners of the middle layer plate (206) are provided with sliding grooves, and the four sliding grooves match the lower ends of the four supports (205).

4. The injection molding die for manufacturing hardware products according to claim 1, characterized in that: Four first sleeve rods (208) are slidably connected on the middle layer plate (206). The four first sleeve rods (208) pass through the upper and lower ends of the middle layer plate (206), with the upper end matching the pad plate (204) and the lower end extending downward.

5. The injection molding die for manufacturing hardware products according to claim 4, characterized in that: A second spring (209) is sleeved between the four first sleeve rods (208) and the middle layer plate (206).

6. The injection molding die for manufacturing hardware products according to claim 1, characterized in that: The upper injection molding template (4) is slidably sleeved with four second sleeve rods (401), and the lower ends of the four second sleeve rods (401) are fixedly connected with pads (402).

7. The injection molding die for manufacturing hardware products according to claim 6, characterized in that: The four gaskets (402) are matched with the lower injection molding template (301), and the four second sleeve rods (401) are matched with the middle layer plate (206).

8. The injection molding die for manufacturing hardware products according to claim 1, characterized in that: The upper end of the upper mold (2) is connected to an injection port (202) by bolt thread, and the lower end of the injection port (202) is connected to an injection pipe (207). The injection pipe (207) passes through the connecting plate (203), the pad plate (204), the middle plate (206) to the lower end of the upper injection template (4).

9. The injection molding die for manufacturing hardware products according to claim 1, characterized in that: The connecting plate (203), pad plate (204), and middle layer plate (206) have the same length and width.

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